AIR CONDITIONING, REFRIGERATING AND HEATINGAN ANALYSIS OF THE AIR CONDITIONING, REFRIGERATING AND...
200
DOCUMENT RESUME ED 107 996 CE 004 265 AUTHOR Frass, Melvin R.; Krause, Marvin TITLE An Analysis of the Air Conditioning, Refrigerating and Heating Occupation. INSTITUTION Ohio State Dept. of Education, Columbus. Div. of Vocational Education.; Ohio State Univ., Columbus. Trade and Industrial Education Instructional Materials Lab. SPONS AGENCY Office of Education (DREW), Washington, D.C. PUB DATE [75] NOTE 200p.; For related documents, see CE 004 160-206, CE 004 263-264, CE 004 267-268, and CE 004 425-427 EDRS PRICE DESCRI?TORS MF-$O.76 HC-$9.51 PLUS POSTAGE Air Conditioning; Communication Skills; *Heating; *Job Analysis; Knowledge Level; *Occupational Information; *Refrigeration !,chanics; Safety; Skill Analysis; Skill Development; Occupations; *Task Analysis; Task Performance; Work Attitudes ABSTRACT The general purpose of the occupational analysis is to provide workable, basic information dealing with the many and varied duties performed in the air conditioning, refrigerating, and heating occupation. The document opens with a brief introduction followed by a job description. The bulk of the document is presented in table form. Six duties are broken down into a number of tasks and for each task a two-page table is presented, showing on the first page: tools, equipment, materials, objects acted upon; performance knowledge (related also to decisions, cues and errors); safety--hazard; and on'the second page: science; math' - number systems; and communications (performance modes, examples, and skills and concepts). The duties include installing, troubleshooting, servicing, and repairing refrigeration and air conditioning equipment and warm air heating systems. Included are lists for a standard tool kit, test equipment, and standard supplies. An appendix relates the duties to air conditioning, refrigeration, and heating. (BP) *********************************************************************** Documents acquired by ERIC include many informal unpublished * materials not available from other sources. ERIC makes every effort * * to obtain the best copy available. Levortheless, items of marginal * * reproducibility are often encountered and this affects the quality * * of the microfiche and hardcopy reproductions ERIC makes available * * via the ERIC Document Reproduction Service (EDRS). EDRS is not * responsible for the quality of the original document. Reproductions * * supplied by EDRS are the best that can be made from the original. * ***********************************************************************
Transcript of AIR CONDITIONING, REFRIGERATING AND HEATINGAN ANALYSIS OF THE AIR CONDITIONING, REFRIGERATING AND...
DOCUMENT RESUME
ED 107 996 CE 004 265
AUTHOR Frass, Melvin R.; Krause, MarvinTITLE An Analysis of the Air Conditioning, Refrigerating
and Heating Occupation.INSTITUTION Ohio State Dept. of Education, Columbus. Div. of
Vocational Education.; Ohio State Univ., Columbus.Trade and Industrial Education InstructionalMaterials Lab.
SPONS AGENCY Office of Education (DREW), Washington, D.C.PUB DATE [75]NOTE 200p.; For related documents, see CE 004 160-206, CE
004 263-264, CE 004 267-268, and CE 004 425-427
EDRS PRICEDESCRI?TORS
MF-$O.76 HC-$9.51 PLUS POSTAGEAir Conditioning; Communication Skills; *Heating;*Job Analysis; Knowledge Level; *OccupationalInformation; *Refrigeration !,chanics; Safety; SkillAnalysis; Skill Development; Occupations;*Task Analysis; Task Performance; Work Attitudes
ABSTRACTThe general purpose of the occupational analysis is
to provide workable, basic information dealing with the many andvaried duties performed in the air conditioning, refrigerating, andheating occupation. The document opens with a brief introductionfollowed by a job description. The bulk of the document is presentedin table form. Six duties are broken down into a number of tasks andfor each task a two-page table is presented, showing on the firstpage: tools, equipment, materials, objects acted upon; performanceknowledge (related also to decisions, cues and errors);safety--hazard; and on'the second page: science; math' - numbersystems; and communications (performance modes, examples, and skillsand concepts). The duties include installing, troubleshooting,servicing, and repairing refrigeration and air conditioning equipmentand warm air heating systems. Included are lists for a standard toolkit, test equipment, and standard supplies. An appendix relates theduties to air conditioning, refrigeration, and heating. (BP)
***********************************************************************Documents acquired by ERIC include many informal unpublished
* materials not available from other sources. ERIC makes every effort ** to obtain the best copy available. Levortheless, items of marginal ** reproducibility are often encountered and this affects the quality *
* of the microfiche and hardcopy reproductions ERIC makes available *
* via the ERIC Document Reproduction Service (EDRS). EDRS is not* responsible for the quality of the original document. Reproductions ** supplied by EDRS are the best that can be made from the original. ************************************************************************
.011
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1111
10
Occ
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5049
AN ANALYSIS OF THE AIR CONDITIONING,REFRIGERATING AND HEATING OCCUPATIONS
Developed By
Melvin R. FrassInstrur`lr, Electrical Appliances
Refrigeration & Air-ConditioningMacomber Vocational High SchoolToledo, Ohio
Marvin KrauseInstructor, Plumbing and HeatingFour County J.V.S.Archbold, Ohio
Occupational AnalysisE.P.D.A. Sub Project 73402
June 1, 1973 to December 30, 1974Director: Tom L. Hinder
Coordinator: William L. Ashley
The Instructional Materials LaboratoryTrade and Industrial Education
The Ohio State University
3
"The activity which is the subject of thisreport was supported in whole or in partby the U.S. Office of Education, Depart-ment of Health, Education, and Welfare.However, the opinions expressed herein donot reflect the position or policy of the U.S.Office of Education, and no official en-dorsement by the U.S. Office of Educationshould be inferred."
ii
TABLE OF CONTENTS
Foreword v
Preface vii
Acknowledgment ix
Job Description xi
Duties
I Installing Refrigeration and Air Conditioning Equipment 1
II Troubleshooting Refrigeration and Air Conditioning Equipment 13
III Servicing and Repairing Refrigeration and Air Conditioning Equipment 73IV Installing Warm Air Heating Systems 125
V Troubleshooting Warm Air Heating Systems 139
VI Servicing and Repairing Warm Air Heating Systems 163
Index: Standard Tool Kit 191
Index: Test Equipment 192
Index: Standard Supplies 193
Appendix 194
5-
ift
FOREWORD
The occupational analysis project was conducted by The Instructional Materials Laboratory, Tradeand Industrial Education, The Ohio State University in conjunction with the State Department ofEducation, Division of Vocational Education pursuant to a grant from the U.S. Office of Education
The Occupational Analysis project was proposed and conducted to train vocatior al educators in thetechniques of making a comprehensive occupational analysis. Instructors were selected from Ag-riculture, Business, Distributive, Home Economics and Trade and Industrial Education to gainexperience in developing anaiysis documents for sixth-one different occupations. Representativesfrom Business, Industry, Medicine, and Education were involved with the vocational instructors inconducting the analysis process.
The project was conducted in three phases. Phase one involved the planning and development of theproject strategies. The analysis process was based on sound principles of learning and behavior.Phase two was the identification, selection and orientation of all participants. The training andworkshop sessions constituted the third phase. Two-week workshops were held during which teamsof vocational instructors conducted an analysis of the occupations in which they had employmentexperience. The instructors were assisted by both occupational consultants and subject matterspecialists.
The project resulted in producing one hundred two trained vocational instructors capable of conduct-ing and assisting in a comprehensive analysis of various occupations. Occupational analysis datawere generated for sixty-one occupations. The analysis included a statement of the various task-performed in each occupation. For each task the following items were identified: tools and equip-ment; procedural knowledge; safety knowledge; concepts and skills of mathematics, science andcommunication needed for successful performance in the occupation. The analysis data provided abasis for generating instructional materials, course outlines, student performance objectives, criter-ion measures as well as identifying specific supporting skills and knowledge in the academic subjectareas.
1
PREFACE
This occupational analysis conducted for the air conditioning, refrigeration, and heating occupationspresented the writers with several difficult decisions and alternatives. Each area of the occupationshas a separate identity and has functioned in this manner for many years. However, the growth of therefrigeration and air-conditioning industry has brought these identities closer together because manyof the duties and tasks performed on the job are interrelated. Many of the skills are common to eacharea. Therefore, if we are to offer a training program, the entire scope of the air conditioning,refrigeration and heating occupations should be included in the course content. The list of tasks foundin the appendix identifies the interrelationships of the tasks performed in each area of the occupa-tions.
There are many job opportunities within the air conditioning, refrigeration and heating fields whichspecialize in one or several specific areas. Training individuals for entry level into these fields shouldbe conducted to include all the basic skills of the refrigeration, air conditioning and heating occupa-tions. The objective of this occupational analysis is to encompass all the duties and tasks of thetechnician in these fields. In the time available to complete the analysis, an in depth study was notpossible. Therefore, an overview of the air conditioning, refrigeration and heating occupations wasmore realistic. Hopefully, it will provide some basis for future study.
q
ACKNOWLEDGMENT
We wish to acknowledge the valuable assistance rendered by the following subject matter specialists.They provided input to the vocational instructors in identifying related skills and concepts of eachrespective subject matter area and served as training assistants in the analysis process during thetwo-week workshops.
Rollin M. Barber, PsychologyThe Ohio State UniversityColumbus, Ohio
Jodi Beittel, CommunicationsColumbus, Ohio
Diana L. Buckeye, MathematicsUniversity of MichiganAvon Lake, Ohio
Rick Fien, ChemistryThe Ohio State UniversityBeachwood, Ohio
N. S. Gidwani, ChemistryColumbus Technical InstituteColumbus, Ohio
Bruce A. Hull, BiologyThe Ohio State UniversityColumbus, Ohio
Donald L. Hyatt, PhysicsWorthingto i High SchoolWorthington, Ohio
?
Glenn Mann, CommunicationsColumbus, Ohio
Jerry McDonald, Physical SciencesColumbus Technical InstituteReynoldsburg, Ohio
Colleen Osinski, PsychologyColumbus Technical InstituteColumbus, Ohio
David Porteous, CommunicationsUniversity of ConnecticutColchester, Connecticut
James A. Sherlock, CommunicationsColumbus Technical InstituteColumbus, Ohio
Jim VanArsdall, MathematicsWorthington High SchoolWorthington, Ohio
Lillian Yontz, BiologyThe Ohio State UniversityCaldwell, Ohio
le
Special thanks are given to Mr. Dwight Sweptson of the Atlas Butler Cooling and Heating, Inc. forproviding us with five of his supervisors as occupational consultants. We wish to acknowledge thevaluable input of these men to the analysis process:
Acy Blair, Jr.Nelson EvansLarry Hanes
Douglas MurdayHarold Hall
Acknowledgment is extended to the following I.M.L. staff members for their role in conducting theworkshops; editing, revising, proofing and typing the analyses.
Faith JusticeSheila NelsonMarsha OpritzaRita BuccillaPeg BushelmanCarol FausnaughMindy FausnaughRita HastingsCarol HicksSue HolsingerBarbara HughesCarol MarvinPatti NyeKathy RoedigerMary Salay
Research AssociateAdministrative AssistantEditorial ConsultantTypistTypistTypistTypistTypistTypistTypistTypistTypistTypistTypistTypist
JOB DESCRIPTION
An air conditioning, refrigeration and heating technician engages in theinstallation of air conditioning, refrigeration and heating equipment such aswindow air conditioners; central air conditioning units; commercial refrig-eration equipment; and gas, oil and electric warm air furnaces. A technicianalso troubleshoots and performs service and repairs on household re-frigerators, freezers, dehumidifiers, window air conditioners, central airconditioning units, commercial refrigeration units and warm air heatingsystems.
10
a.
Duty I Installing Refrigeration and Air Conditioning Equipment
1 Install window air conditioner2 Install central air conditioner3 Install self contained commercial refrigeration unit4 Install remote condensing unit with single cabinet5 Install remote commercial condensing unit with multiple cabinets
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Effe
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avio
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cien
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Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
dw
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
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evel
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Beh
avio
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cien
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Tec
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how
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prem
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.H
e sh
ould
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ione
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nly
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e cu
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erta
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ld a
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illin
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at w
ill n
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Rat
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INST
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ET
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ZA
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Con
nect
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and
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rnIn
jury
to o
nese
lf or
oth
ers
CU
ES
Sur
vey
prem
ises
logi
cal p
lace
men
t of e
quip
men
t. C
heck
for
adeq
uate
pow
er s
uppl
y
.411
111=
1L
ER
RO
RS
Fai
lure
to p
erfo
rm s
tand
ard
task
s w
ould
res
ult i
nin
effic
ient
or
no o
pera
tion.
I-S
INST
AL
L R
EM
OT
E C
OM
ME
RC
IAL
CO
ND
EN
SIN
G U
NIT
(TA
SK
ST
AT
EM
EN
T)
WIT
H M
ULT
IPLE
CA
BIN
ET
S
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[Ref
riger
ant)
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure)
For
ces
actin
g on
a b
ody
imm
erse
d or
floa
ting
in a
liqu
id[L
evel
]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
.ind
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
lsF
ract
ions
Use
of N
umbe
rs: (
with
out c
alcu
latio
n)[e
yeba
lling
floo
r ar
ea]
Ord
erin
g- [S
.T.K
.)C
odin
g -[
mfg
. dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sRul
e of
thum
b[a
ppro
xim
atio
n]B
ask
Geo
met
ry S
kills
and
Con
cept
sK
now
ledg
e of
geo
met
ric r
elat
ions
hips
Sym
met
ry[c
ente
r po
int]
Det
erm
inat
ion
of a
rea.
per
imet
er a
nd d
iago
nals
of p
olyg
ons
with
mor
e th
an 4
sid
es.
Bas
ic A
rithm
etric
Ski
lls a
nd C
once
ptsP
rope
rty
of c
ompa
rison
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts -
- [ta
pe]
Mea
sure
men
t: G
eom
etric
Line
ar
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
s--[
capa
city
cha
rt)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Spe
akin
g
Writ
ing r
o
Inst
ruct
ions
Sur
vey
prem
ises
Ver
bal i
nstr
uctio
ns
Ser
vice
ord
er
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Pro
cess
rep
ort
Vis
ual a
naly
sis
Ter
min
olog
y/G
ener
al V
ocab
ular
yC
larit
y of
exp
ress
ion
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
Duty II Troubleshooting Refrigeration and Air Conditioning Equipment
I Hook hermetic compressor directly to power supply2 Check circuitry of the compressor protector and relay3 Check capacitor4 Check circuitry of defrost system5 Check circulation fan motors6 Check and adjust control thermostat7 Attach manifold and gauges to service valves and check pressures8 Install in-line service valves and measure pressures9 Check compressor efficiency
10 Locate leak in a refrigeration system using Oectronic leak detector11 Locate leak in a refrigeration system using. halide torch12 Locate leak in a refrigeration system using bubble method13 Check unit operationoil levelsight glassmoisture indicator14 Check and adjust an automatic expansion valve15 Check, test and adjust thermostatic expansion valve16 Check and adjust pressure motor control17 Check and adjust low pressure safety control18 Check and adjust high pressure safety control19 Adjust and calibrate oil pressure control20 Check ice maker for operation21 Check and adjust water valve22 Check hot gas defrost solenoid and valve23 Check humidity with sling psychrometer24 Check and adjust humidistat25 Check condensate pump and drain26 Check blower assembly and filter27 Check heat pump reversing system28 Check system for burnout and install cleanup kit29 Service electronic air cleaner
2 2.
i.
II-1
HO
OK
HE
RM
ET
IC C
OM
PRE
SSO
R D
IRE
CT
LY
'(T
AS
K S
TA
TE
ME
NT
)T
O P
OW
ER
SU
PPL
Y23
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
STK
CS WM
Hoo
k up
CS
Hoo
k up
wat
t met
erSt
art c
ompr
esso
r an
d ob
serv
e w
atta
ge r
eadi
ngs
Safe
ty:
Alw
ays
disc
onne
ct c
ircu
it an
d lo
ck o
ut b
reak
er b
efor
ew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of
hand
tool
s
Haz
ard:
Ele
ctri
cal s
hock
, ele
ctri
cal b
urn
Inju
ry to
one
self
or
othe
rs
DE
CIS
ION
SC
UE
SE
RR
OR
S
Isol
ate
com
pres
sor
Det
erm
ine
com
pres
sor
wat
tage
I
Com
pres
sor
star
ts a
nd c
uts
out
Com
pres
sor
runs
hot
Failu
re to
do
so w
ould
res
ult i
n fa
ulty
dia
gnos
is
II-1
HO
OK
HE
RM
ET
IC C
OM
PRE
SSO
R D
IRE
CT
LY
(TA
SK
ST
AT
EM
EN
T)
TO
PO
WE
R S
UPP
LY
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S--
---
----
----
----
---
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]M
agne
tic fi
elds
of f
orce
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt
Beh
avio
ral S
cien
ce.
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
_ __
_ --
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
i.sic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r. s
igni
fican
t dig
its.
and
tole
ranc
e[C
S W
M]
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ive-
-[D
educ
tive
diag
nosi
s]
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
K I
L LS
/CO
N C
SP
TS
Rea
ding
Vie
win
g
Writ
ing
CS
WM
CS WM
Ser
vice
Ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
.....
11-2
CH
EC
K C
IRC
UIT
RY
OF
TH
E C
OM
PRE
SSO
R,
(TA
SK
ST
AT
EM
EN
T)
PRO
TE
CT
OR
AN
D R
EL
AY
25
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
,.
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
STK
VO
M-W
att m
eter
Wir
ing
Dia
gram
Isol
ate
circ
uitr
y of
com
pres
sor
circ
uit o
n w
irin
g di
agra
mC
heck
pow
er s
uppl
yC
heck
con
tinui
ty o
n co
mpr
esso
r te
rmin
als,
pro
tect
oran
d re
lay
-
Safe
ty:
Alw
ays
disc
onne
ct c
ircu
it an
d lo
ck o
ut b
reak
er b
efor
ew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of
hand
tool
s
Haz
ard:
Ele
ctri
cal s
hock
, ele
ctri
cal b
urn
Inju
ry to
one
self
or
othe
rs
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
defe
ctiv
e ci
rcui
t by
prob
ing
each
inte
gral
par
t ind
epen
dent
lyU
nit d
oes
not r
un
Uni
t sta
rts
and
stop
s
Impr
oper
use
of
the
rule
s of
che
ckin
g co
ntin
uity
will
resu
lt in
inac
cura
te r
eadi
ng a
nd d
iagn
osis
11-2
CH
EC
K C
IRC
UIT
RY
OF
TH
E C
OM
PRE
SSO
R,
(TA
SK S
TA
TE
ME
NT
) PR
OT
EC
TO
R A
ND
RE
LA
Y
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]M
agne
tic fi
elds
of f
orce
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
ntE
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[b
i met
al]
Beh
avio
ral S
cien
ce.
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing
[mfg
dat
a pl
ate)
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n in
stru
men
t of m
easu
re. d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t slig
its. a
nd to
lera
nce
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sR
epre
sent
atio
nal g
raph
s- -
[wiri
ng d
iagr
am]
Bas
ic L
ogic
Ded
uctiv
e, In
duct
ive
[Ded
uctiv
e D
iagn
osis
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
EX
AM
PLE
S
Sch
emat
icV
OM
-Con
tinui
ty
Com
pone
nts(
Wiri
ng D
iagr
am
Ser
vice
Ord
er
SK
I L L
S/C
ON
CE
PT
S
Ter
min
olog
yW
iring
dia
gram
Det
ail/i
nfer
ence
Vis
ual a
naly
sis
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
(TA
SK
ST
AT
EM
EN
T)
11-3
CH
EC
K C
APA
CIT
OR
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KC
apac
itor
Ana
lyze
rR
emov
e ca
paci
t.-)r
Che
ck c
apac
itor
Rep
lace
it d
efec
tive
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
I
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
capa
cito
r fo
r op
en, s
hort
or
prop
er r
atin
gin
mic
rofa
rads
Vis
ual o
bser
vatio
n or
impr
oper
rea
ding
det
erm
ines
faul
q ca
paci
tor
Impr
oper
use
of a
naly
zer
or n
ot a
ccou
ntin
g fo
r po
wer
kfa
ctor
wou
ld r
esul
t in
impr
oper
dia
gnos
is
(TA
SK
ST
AT
EM
EN
T)
11-3
CH
EC
K C
AP
AC
ITO
R
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]R
esis
tanc
e of
mat
eria
ls to
flow
of e
lect
rical
cur
rent
[flow
of c
urre
nt th
ru c
apac
itor]
Beh
avio
ral S
cien
ce'
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd In
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
dtsr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d, P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
.
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
orac
cura
cy w
ith r
espe
ct to
rel
ativ
e er
ror,
sig
nific
ant d
igits
.an
d to
lera
nce.
[CA
]B
asic
Log
icD
educ
tive/
Indu
ctiv
e[d
educ
tive
diag
nosi
s]
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
CA
CA
Ser
vice
Ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
(TA
SK
ST
AT
EM
EN
T)
11-4
CH
EC
K C
IRC
UIT
RY
OF
DE
FR
OS
T S
YS
TE
M
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KV
OIL
AW
iring
Sch
emat
ic
I
Isol
ate
circ
uitr
y of
def
rost
sys
tem
on
wiri
ng s
chem
atic
Loca
te te
rmin
al b
oard
and
iden
tify
each
term
inal
codi
ng, t
ach
com
pone
ntC
heck
con
tinui
ty o
f tim
er c
ircui
t, he
ater
circ
uit a
nd d
efro
stte
rmin
ator
circ
uit
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
brea
ker
befo
rew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of h
and
tool
s
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
S
Def
ectiv
e ci
rcui
t fou
nd w
hen
no c
ontin
uity
app
ears
ER
RO
RS
Det
erm
ine
defe
ctiv
e ci
rcui
t by
prob
ing
each
inte
rgal
circ
uit i
ndep
ende
ntly
Impr
oper
use
of t
he r
ules
of c
heck
ing
cont
inui
ty w
ill r
esul
tin
inac
cura
te r
eadi
ng a
nd d
iagn
osis
(TA
SK
ST
AT
EM
EN
T)
II-4
CH
EC
K C
IRC
UIT
RY
OF
DE
FR
OS
T S
YS
TE
M
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[B
i met
al th
erm
osta
t]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
ol--
Ilt a
ppro
pria
tely
whe
n di
fficu
ltyH
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rrnl
ns C
ie ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing-
give
n a
cycl
ing
syst
em, r
ecog
nize
and
iden
tify
each
uni
t inv
olve
d by
assi
gnin
g ne
cess
ary
sym
bols
, num
eric
al o
r lit
eral
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
[wiri
ng d
iagr
am]
Inst
rum
ents
[VO
M]
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ivee
duct
ive
diag
nosi
sIn
duct
ive
[Ded
uctiv
e.'
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emat
icV
OM
-Con
tinui
ty
Com
pone
nts/
Wiri
ng d
iagr
am
Ser
vice
ord
er
Ter
min
olog
yW
iring
dia
gram
Det
ail/i
nfer
ence
Vis
ual a
naly
sis
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
.1
(TA
SK
ST
AT
EM
EN
T)
11-5
CH
EC
K C
IRC
UL
AT
ION
FA
N M
OT
OR
S
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KV
OM
Wiri
ng D
iagr
am ".
I
/
Cne
ck p
ower
sup
ply
to m
otor
Che
ck c
ontin
uity
Che
ck fo
r de
fect
ive
bear
ings
----
....
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
befo
rew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of h
and
tool
sH
azar
d:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if m
otor
is d
efec
tive
Mot
or d
oes
not r
unD
eter
min
e op
en c
ircui
t to
mot
orM
otor
hum
sM
otor
noi
sy
...
If pr
oper
rul
es o
f che
ckin
g co
ntin
uity
are
not
follo
wed
, it
1
will
res
ult i
n an
inac
cura
te d
iagn
osis
O
(TA
SK
ST
AT
EM
EN
T)
11-5
CH
EC
K C
IRC
UL
AT
ION
FA
N M
OT
OR
S
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]M
agne
tic f
ield
s of
for
ceR
esis
tanc
e of
mat
eria
ls to
flo
w o
f el
ectr
ical
cur
rent
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riat
ely
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn f
or th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f co
sts
shou
ld b
e ac
cura
te, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fel
low
em
ploy
ee a
nd d
evel
op a
rel
atic
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
.
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
onal
alg
orith
mSu
btra
ctio
n al
gori
thm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts:
Giv
en a
n In
stru
men
t of
Mea
sure
, det
erm
ine
prec
isio
nan
d/or
acc
urac
yw
ith r
espe
ct to
rel
ativ
e er
ror,
sig
nifi
cant
dig
its, a
nd to
lera
nce.
- [V
OM
]R
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
-- R
epre
sent
atio
nal g
raph
s[W
irin
g D
iagr
am]
Bas
ic L
ogic
--D
educ
tive/
Ind
uctiv
e[D
D]
CO
MM
UN
ICA
TIO
NS
.1P
ER
FO
RM
AN
CE
MO
DE
SE
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
Rea
ding
Vie
win
g
Wri
ting
Sche
mat
icV
OM
-Con
tinui
ty
Com
pone
nts/
Wir
ing
Dia
gram
Serv
ice
Ord
er
Ter
min
olog
yW
irin
g di
agra
mD
etai
l/inf
eren
ce
Vis
ual a
naly
sis
Log
icR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
y-C
lari
ty o
f ex
pres
sion
.....
23
(TA
SK
ST
AT
EM
EN
T)
11-6
CH
EC
K A
ND
AD
JUS
T C
ON
TR
OL
TH
ER
MO
ST
AT
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
STK
TI
Che
ck c
ut in
and
cut
out
tem
pera
ture
sC
heck
con
trol
sA
djus
tR
emov
e, a
nd r
epla
ce
Safe
ty:
Alw
ays
disc
onne
ct c
ircu
it an
d lo
ck o
ut b
reak
er b
efor
ew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of
hand
tool
s
Haz
ard:
Ele
ctri
cal s
hock
, ele
ctri
cal b
urn
Inju
ry to
one
self
or
othe
rs
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if c
ontr
ol c
an b
e ad
just
ed o
r m
ust b
e re
plac
edD
eter
min
e cu
t in
and
cut o
ut s
ettin
gs a
ccor
ding
to m
fg.'s
spec
ific
atio
ns
Com
pres
sor
dues
not
run
Com
pres
sor
suns
all
the
time
Com
pres
sor
runs
too
muc
hR
efri
gera
tor
expe
rien
ces
erra
tic te
mpe
ratu
res
impr
oper
adj
ustm
ents
will
res
ult i
n im
prop
er te
mpe
ratu
res
and
poss
ible
foo
d sp
oila
ge
TA
SK
ST
AT
EM
EN
T)
11-6
CH
EC
K A
ND
AD
JUS
TC
ON
TR
OL
TH
ER
MO
ST
AT
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
luid
s un
der
pres
sure
[Ref
riger
ant u
nder
pre
ssur
e in
pow
er tu
be]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[Exp
ansi
on o
f pow
er tu
be]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
r, a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing
[Mfg
dat
a pl
ate)
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts-
[T I]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its.
and
tole
ranc
e.B
asic
Log
icD
educ
ti% e
I ndu
cdve
[Dia
gnos
is]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
The
rmis
ter
ther
mom
eter
Con
trol
adj
ustm
ent
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
25
11-7
AT
TA
CH
MA
NIF
OL
D A
ND
GA
UG
ES
TO
SE
RV
ICE
(TA
SK
-S
TA
TE
ME
NT
)V
AL
VE
S A
ND
CH
EC
K P
RE
SSU
RE
Sn5
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
G
-
Atta
ch h
ose
conn
ectio
nsO
pen
valv
e st
em
.
'Saf
:ty
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Fai
lure
to a
ttach
gau
ges
to th
e rig
ht v
alve
will
res
ult i
nin
adeq
uate
rea
ding
s an
d po
ssib
le d
amag
e to
gau
geD
eter
min
e be
twee
n th
e hi
gh a
nd lo
w s
ide
valv
esLo
cate
low
sid
e va
lve
and
high
sid
e va
lve
11-7
AT
TA
CH
MA
NIF
OL
D A
ND
GA
UG
ES
TO
SE
RV
ICE
ITA
SK S
TA
TE
ME
NT
) V
AL
VE
S A
ND
CH
EC
K P
RE
SSU
RE
S
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Flu
ids
unde
r pr
essu
re[R
efrig
eran
t]S
impl
e m
achi
nes
used
to g
ain
mec
hani
cal a
dvan
tage
[ST
K]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
,
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
[ref
riger
ant]
Pro
pert
y of
com
paris
on -
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
-[M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
Log
ic [O
D]
Ded
ucth
e In
duct
ive
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
t
27
4.
11-8
IN
STA
LL
IN
-LIN
E S
ER
VIC
E V
AL
VE
S A
ND
ME
ASU
RE
PR
ES-
(TA
SKST
AT
EM
EN
T)
SUR
ES
27
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
SI K
MC
;S
S-I
4
...
.'
.C
lean
are
a of
tubi
ng w
here
vat
ic w
ill h
e in
stal
led
In.ta
ll %
abe
.111
11i
'Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Fai
lure
to id
entif
y va
lves
on
prop
er li
nes
wou
ld r
esul
t in
obta
inin
g w
rong
gau
ge r
eadi
ng. p
ossi
ble
dam
age
to g
auge
s.
Det
erm
ine
%O
at is
suc
tion
side
or
loss
aid
e an
d hi
gh s
ide
Loca
te li
nes
(larg
e on
e, lo
w s
ide
-- s
mal
ler
one,
hig
h si
de)
ortr
ace
lines
bac
k fr
om c
ompr
esso
r
II-8
IN
STA
LL
IN
-LIN
E S
ER
VIC
E V
AL
VE
S A
ND
ME
ASU
RE
PR
ES-
(TA
SK S
TA
TE
ME
NT
) SU
RFS
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
[Ref
:iger
ant]
Pro
pert
y of
com
paris
on[m
easu
re p
ress
ures
]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
[MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
OW
uct
is e
Indu
ctile
[DO
]
CO
MM
UN
!CA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
MG
MG
Ser
vice
Ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
-,-s
i,29
(TA
SK
ST
AT
EM
EN
T)
11-9
CH
EC
K C
OM
PRE
SSO
R E
FFIC
IEN
CY
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
' ST
KM
GW
M
I
Inst
all m
anifo
ld a
nd g
auge
sIn
stal
l wat
t met
erS
tart
uni
t and
obs
erve
gau
ge r
eadi
ng a
nd w
att m
eter
read
ing
'Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
com
pres
sor
oper
atio
n by
wat
tage
che
ckD
eter
min
e co
mpr
esso
r op
erat
ion
by c
ompr
esso
nLo
ng r
unni
ng ti
me
of c
ompr
esso
rE
rrat
ic s
yste
m te
mpe
ratu
res
Fai
lure
to m
ake
prop
a ch
ecks
wou
ld r
esul
t in
com
plai
ntno
t bei
ng s
atis
fied
(TA
SK
ST
AT
EM
EN
T)
II-9
CH
EC
K C
OM
PRE
SSO
R E
FFIC
IEN
CY
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neY
er p
ossi
ble.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
npr
essu
reto
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
perf
orm
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd b
y sh
ould
;how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing-
-[m
fg d
ata
plat
e]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n{r
efrig
eran
t]P
rope
rty
of c
ompa
rison
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
(MG
and
WM
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ive
--{D
D]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
MG
WM
MG
WM
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
_...
31
II-I
0 L
OC
AT
E L
EA
K I
N R
EFR
IGE
RA
TIO
N S
YST
EM
USI
NG
(TA
SK
ST
AT
EM
EN
T)
EL
EC
TR
ON
IC L
EA
K D
ET
EC
TO
Rf3
i
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
GE
LDS
S-I
5 or
SS
-I6
acco
rdin
g to
man
urnt
urer
's s
peci
ficat
ion
..,
_-
Fill
sys
tem
with
type
of r
efrig
eran
t -.fe
d in
sys
tem
Pro
be s
uspe
cted
are
as w
ith s
enso
r of
leak
det
ecto
r
......
...
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
i
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
prob
able
are
a of
leak
Loca
te le
ak w
hen
sign
al is
det
ecte
d fr
om d
etec
tor
..
Impr
oper
cal
ibra
tion
of s
ensi
tivity
con
trol
or
failu
re to
use
sear
ch a
nd p
inpo
int c
orre
ctly
, res
ults
in m
i:'ak
en le
ak.
II-1
0 L
OC
AT
E L
EA
K I
N R
EFR
IGE
PAII
ON
SY
STE
M U
SIN
G(T
AS
K S
TA
TE
ME
NT
)E
LE
CT
RO
NIC
LE
AK
DE
TE
CT
OR
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[h
eat t
rans
fer
evap
orat
or to
con
dens
er]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
ath
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
toth
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
{ref
riger
ant]
Pro
pert
y of
com
paris
on {
mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts-
-[M
G a
nd E
LD]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
Indu
ctiv
e{D
D]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
List
enin
g
Writ
ing
..m.,.
,.
MG
MG
ELD
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Noi
se d
iscr
imin
atio
nS
enso
r si
ren
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
....
33
II -
11 L
OC
AT
E L
EA
K I
N R
EFR
IGE
RA
TIO
N S
YST
EM
(TA
SK
ST
AT
EM
EN
T)
USI
NG
HA
LID
E T
OR
CH
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
' ST
KM
GH
LD
SS-I
5 or
SS-
16 a
ccor
ding
1 m
fg's
spe
cifi
catio
ns
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
IIIIII
MM
IMIO
N V
Fill
syst
em w
ith ty
pe o
f re
frig
eran
t use
d in
sys
tem
Safe
tyPr
obe
susp
ecte
d ar
eas
with
hal
ide
torc
h
DE
CIS
ION
SC
UE
S
Det
erm
ine
prob
able
are
a of
leak
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Prop
er v
entil
atio
n is
a n
eces
sary
pre
caut
ion
whe
n ch
ecki
ngw
ith a
HL
D
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIr
rita
ting
odor
to n
ose
and
thro
at
Det
ects
leak
whe
n fl
ame
chan
ges
to a
bri
ght b
lue
colo
r
ER
RO
RS
If im
prop
er f
lam
e co
lor
is m
ista
ken
for
leak
; lea
k w
ould
not b
e de
tect
ed
11-1
1 L
OC
AT
E L
EA
K I
N R
EFR
IGE
RA
TIO
N S
YST
EM
(TA
SK S
TA
TE
ME
NT
) U
SIN
G H
AL
IDE
TO
RC
H
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[h
eat t
rans
fer
evap
orat
or to
con
dens
er)
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
cac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
{ref
riger
ant]
Pro
pert
y of
com
paris
onfm
easu
nng]
Bas
ic M
easu
rem
ent S
kills
and
Con
oent
s--(
MG
and
HLD
)In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
stm
-ter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igit
and
tole
ranc
e.B
asic
Log
icD
educ
t ive
/ ind
uct i
ve--
-PD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
MG
HLD
Ser
vice
ord
er
Det
ail i
nfer
ence
Col
or d
iscr
imin
atio
n(f
lam
e ch
ange
s co
lor)
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
35
II-I
2 L
OC
AT
E L
EA
K I
N R
EFR
IGE
RA
TIO
N S
YST
EM
USI
NG
(TA
SK
ST
AT
EM
EN
T)
BU
BB
LE
ME
TH
OD
45
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
HA
ZA
RD
STK
MG
SS-1
7
Fill
syst
em w
ith N
itrog
enSw
ab jo
ints
and
oth
er p
ossi
ble
area
s w
here
leak
s oc
cur
Safe
ty
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
prob
able
are
a of
leak
'XM
AS
leak
whe
n bu
bble
occ
urs
Failu
re to
isol
ate
poss
.,--n
urce
of
leak
, res
ults
in m
ore
time
and
expe
nse
req.
4 to
loca
te s
ourc
e
...
11-1
2 L
OC
AT
E L
EA
K I
N R
EFR
IGE
RA
TIO
NS
YS
TE
M U
SIN
G(T
AS
K S
TA
TE
ME
NT
)B
UB
BL
E M
ET
HO
D
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[h
eat t
rans
fer
esap
orat
or to
con
dens
er]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in v
ork
.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gont
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
[ref
riger
ant]
Pro
pert
y of
com
paris
on-
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
[MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
. det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r. s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ive
[DD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
MG
Bub
ble
solu
tion
swab
bed
on le
ak d
eter
min
esar
ea o
f lea
k
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
37
11-1
3 C
HE
CK
UN
IT O
PER
AT
ION
-OIL
LE
VE
L-S
IGH
T G
LA
SS-
(TA
SK
ST
AT
EM
EN
T)
MO
IST
UR
E I
ND
ICA
TO
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
STK
AP
insp
ect
Che
ck p
ower
sup
ply
Safe
ty
Use
car
e in
che
ckin
g po
wer
sup
ply
Car
e in
use
of
hand
tool
s
Haz
ard
Seve
re s
hock
may
occ
urIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
prop
er o
il le
vel,
dear
sig
ht g
lass
, and
col
oron
moi
stur
e in
dica
tor
pad
in d
ry z
one
;
Loc
ate,
oil
leve
l, si
ght g
lass
in s
epar
ator
or
com
pres
sor
base
. Sig
ht g
lass
and
moi
stur
e in
dica
tor
in h
ind
line.
Failu
re to
che
ck o
ut p
rope
rly
coul
d re
sult
in a
nee
ded
repa
ir to
be
over
look
ed
11-1
3 C
HE
CK
UN
IT O
PER
AT
ION
-OIL
LE
VE
L-S
IGH
T G
LA
SS-
(TA
SK S
TA
TE
ME
NT
) M
OIS
TU
RE
IN
DIC
AT
OR
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S9
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[h
eat t
rans
fer
evap
orat
or to
con
dens
er]
Beh
avio
ral S
cien
ce:
T;c
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
:It s
houl
d an
swer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.he
sho
uld
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
.,
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing[
mfg
dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s --
[AP
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its. a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ive
[DD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
AP
Oil
leve
lS
ight
gla
ssM
oist
ure
indi
cato
r
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
39
11-1
4 C
HE
CK
AN
D A
DJU
ST A
N A
UT
OM
AT
IC E
XPA
NSI
ON
(TA
SK
ST
AT
EM
EN
T)
VA
LV
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N-.
....
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
STK
MG
Insp
ect e
xpan
sion
val
ve f
or ic
e bu
ildup
C le
ek a
djus
tmen
t in
rela
tion
to lo
w s
ide
pres
sure
'Saf
ety
Alw
ays
wea
r go
ggi,s
and
use
car
e w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Adj
ust v
alve
ste
m c
lock
wis
e to
incr
ease
pre
ssur
e, c
ount
erN
orm
al lo
w s
ide
pres
sure
s w
ill b
e re
cord
edcl
ockw
ise
to d
ecre
ase
pres
sure
to r
ecor
d de
sire
d lo
w s
ide
pres
sure
Failu
refo
llow
the
prop
er a
djus
tmen
t tec
hniq
ue w
ould
resu
k in
fau
lty p
erfo
rman
ce.
11-1
4 C
HE
CK
AN
D A
DJU
ST
AN
AU
TO
MA
TIC
EX
PA
NS
ION
(TA
SK
ST
AT
EM
EN
T)
VA
LVE S
CIE
NC
EM
AT
H -
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
Eff
ect
ofhe
atin
g an
d co
olin
g on
exp
ansi
on o
f m
ater
ials
Eff
ect o
f he
atin
g an
d co
olin
g on
sta
te o
f m
atte
r[
efri
gera
nt]
Flui
ds u
nder
pre
ssur
e[r
efri
gera
nt u
nder
pre
ssur
e]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[hea
t tra
nsfe
r ev
apor
ator
to c
onde
nser
]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riat
ely
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn f
or th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f co
sts
shou
ld b
e ac
cura
te, h
ones
t and
per
form
ed in
a s
trai
ght
forw
a-4
man
ner.
He
shou
ld g
et a
long
with
his
fel
low
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofm
iona
lism
.
Rat
iona
l Num
bers
:
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n -
fref
rige
rant
]Pr
oper
ty o
f co
mpa
riso
n[m
easu
ring
]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts[
MG
]In
stru
men
ts.
Giv
en a
n In
stru
men
t of
Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fica
nt d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
lndu
ctiv
e[D
D]
.
CO
MM
UN
ICA
TIO
NS
i
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
dihg
Vie
win
g
Wri
ting
MG
Aut
omat
ic e
xpan
sion
val
ve
Serv
ice
orde
r
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
lari
ty o
f ex
pres
sion
r
41
II-1
5 C
HE
CK
, TE
ST A
ND
AD
JUST
TH
ER
MO
STA
TIC
(TA
SK
ST
AT
EM
EN
T)
EX
PA
NS
ION
VA
LVE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
G(E
lem
ent t
ube
chec
k/us
ed in
cdn
junc
tion
with
R-1
2-I-
-22
)
Che
ck p
ower
ele
men
t usi
ng e
lem
ent t
ube
chec
k an
dre
cord
pre
ssur
esA
djus
t to
10°
supe
rhea
tR
epla
ce if
nec
essa
ryC
heck
pre
ssur
es fo
r no
rmal
ope
ratio
n
'Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if T
EV
is d
efec
tive
or o
ut o
f adj
ustm
ent
Nor
mal
low
sid
e te
mpe
ratu
res
and
pres
sure
will
be
reco
rded
.,
Fai
lure
to d
iagn
ose
prob
lem
acc
urat
ely,
wou
ld r
esul
tin
rep
laci
ng p
art u
nnec
essa
rily
11-1
5 C
HE
CK
, TE
ST A
ND
AD
JUST
TH
ER
MO
STA
TIC
(TA
SKS
TA
TE
ME
NT
)E
XPA
NSI
ON
VA
LV
E
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant)
Flu
ids
unde
r pr
essu
re(r
efrig
eran
t und
er p
ress
ure)
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[h
eat t
rans
f
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sno
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght .
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
ber.
.
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kill,
and
Con
cept
,R
atio
and
pro
port
ion
[ref
riger
ant)
Pro
pert
y of
com
paits
on[m
easu
ring)
Bas
ic M
easu
rem
ent S
kill.
and
Con
cept
s [M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re. d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
logi
cD
educ
ti,e
Indu
ctne
[DD
)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
MG
TE
V
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
43
52
(TA
SK
ST
AT
EM
EN
T)
II-16
CH
EC
K A
ND
AD
JUS
TP
RE
SS
UR
E M
OT
OR
CO
NT
RO
L
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AL
iED
UP
ON
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
ST
KM
GC
heck
gau
ge r
eadi
ngs
Che
ck d
iffer
entia
l and
ran
ge s
ettin
gsC
heck
cut
-in a
nd c
ut-o
ut s
ettin
gsM
ake
nece
ssar
y ad
just
men
ts
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
S
Det
erm
ine
cont
rol a
djus
tmen
ts to
mfg
spe
cific
atio
ns
CU
ES
Cor
rect
con
trol
set
tings
will
pro
vide
for
norm
al r
un ti
me
and
dow
n tim
e
ER
RO
RS
Fai
lure
to m
eet a
ll ad
just
men
t req
uire
men
ts w
ould
res
ult
in s
hort
cyc
le o
r an
ext
ende
d ru
n cy
cle
1111
.-
(TA
SK
ST
AT
EM
EN
T)
11-1
6 C
I1E
CK
AN
D A
DJU
ST
PR
ES
SU
RE
MO
TO
R C
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
pre
ssur
e in
bel
low
siE
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[e
ffect
of r
efng
eran
t on
bello
ws]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
l, ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion[
refr
iger
ant]
Pro
pert
y of
com
paris
on[m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s--[
MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ive
AD
D]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Wt:t
ing
MG
Con
trol
adj
ustm
ents
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
45
(TA
SK
ST
AT
EM
EN
T)
11-1
7 C
HE
CK
AN
D A
DJU
ST
LO
W P
RE
SS
UR
E S
AF
ET
YC
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
GC
heck
gau
ge r
eadi
ngs
Che
ck d
iffer
entia
l and
ran
ge a
djus
tmen
tsC
heck
cut
-in a
nd c
ut-o
ut p
oint
sM
ake
nece
ssar
y ad
just
men
ts
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
rt w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
ham
' too
ls
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lfot
hers
DE
CIS
ION
S
Det
erm
ine
adju
stm
ents
acc
ordi
ng to
mfg
spe
cific
atio
ns
CU
ES
If co
ntro
l is
func
tioni
ng c
ompr
esso
r w
ill o
pera
te a
nd.
low
sid
e pr
essu
res
will
be
norm
al
EF
iRO
RS
Fai
lure
to r
ecog
nize
low
sid
e op
erat
ing
pres
sure
s or
mak
ein
corr
ect a
djus
tmen
ts w
ould
cau
se c
ompr
esso
r da
mag
e an
dpo
or s
yste
m p
erfo
rman
ce
I
IMM
OM
ME
NIU
MM
EN
't
(TA
SK
ST
AT
EM
EN
T)
11-1
7 C
HE
CK
AN
DA
DJU
ST
LO
W P
RE
SS
UR
E S
AF
ET
Y C
ON
TR
OL
SC
IEN
CE
'M
AT
H -
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]Fl
uids
und
er p
ress
ure
[ref
rege
rant
und
er p
ress
ure
in b
ello
ws)
Eff
ect o
f he
atin
g an
d cc
olin
g on
exp
ansi
on o
f m
ater
ials
[bel
low
s as
sem
bly]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riat
ely
v;i:e
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g 4r
twiti
es a
nd h
e sh
ould
sho
w c
once
rn f
or th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
ban
e. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f co
sts
shou
ld b
e ac
cura
:ie
st a
nd p
erfo
rmed
is a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is f
ello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
.
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[re
frig
eran
t]Pr
oper
ty o
f co
mpa
riso
n[m
easu
iing]
Bas
ic M
easu
rem
ent S
kills
and
Con
ccpt
s[M
G)
Inst
rum
ents
Giv
en a
n in
stru
men
t of
Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fica
nt d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
Inn
uctiv
eID
D]
.C
OM
MU
NIC
AT
ION
S
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
gi
Wri
ting
MG
Con
trol
adj
ustm
ents
Serv
ice
orde
r
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Det
ail i
nfer
ence
info
rmat
iona
l rep
ort
Ter
min
olog
yC
lari
ty o
f ex
pres
sion
47
(TA
SK
ST
AT
EM
EN
T)
11-1
8 C
HE
CK
AN
D A
DJU
ST
HIG
H P
RE
SS
UR
E S
AF
ET
YC
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
HA
ZA
RD
S1K MG
Che
ck g
auge
rea
ding
.C
heck
diff
eren
tial a
nd r
ange
adj
ustm
ents
Che
ck c
ut-in
and
cut
-out
poi
nts
Mak
e ne
ces.
ary
adju
stm
ent.
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rn.
IMur
y to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
S
It co
ntro
l 1. l
unct
ioni
ng c
pres
.in %
%III
ope
rate
and
high
.idc
pre
.sur
e. w
ill h
e no
rmal
ER
RO
RS
Fai
lure
to r
ecog
nise
hig
h si
de o
pera
ting
pres
sure
s or
mak
ein
corr
ect a
djus
tmen
ts w
ould
cre
ate
shor
t cyc
ling
and
inef
ficie
nt p
erfo
rman
ce
Det
erm
ine
cont
rol a
diu.
tinci
n. to
mil;
Tet
a:ca
tion%
(TA
SK
ST
AT
EM
EN
T)
11-1
8 C
HE
CK
AN
D A
DJU
ST
HIG
H P
RE
SS
UR
E S
AF
ET
Y C
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
pre
ssur
e in
bel
low
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[e
xpan
sion
of b
ello
ws]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion-
-[r
efrig
eran
t]P
rope
rty
of c
ompa
rison
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts[
MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/ in
duct
ive-
4M]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MI.N
CE
MO
DE
SE
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
Rea
ding
Vie
win
g
Writ
ing
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
.....
49
(TA
SK
ST
AT
EM
EN
T)
11-1
9 A
DJU
ST A
ND
CA
LIB
RA
TE
OIL
PR
ESS
UR
E S
AFE
TY
CO
NT
RO
LIV
A
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
STK
MG
Inst
all m
anif
old
and
gaug
esL
ocat
e co
ntro
lA
djus
t and
cal
ibra
teT
est a
nd c
heck
Safe
ty.
' Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
'C
are
and
use
of h
and
tool
s
Haz
ard:
Inju
ry to
eye
s or
ski
n bu
rn
Inju
ry to
one
self
or
othe
rs
1111
1MM
IPD
EC
ISIO
NS
CU
ES
gRR
OR
S
Impr
oper
adj
ustm
ent a
nd c
alib
ratio
n m
ay r
esul
t in
unit
mal
func
tion
Det
erm
ine
adju
stm
ents
to b
e m
ade
acco
rdin
g to
Uni
t shu
t-of
fm
fg. s
peci
fica
tions
Low
oil
leve
l
(TA
SK
ST
AT
EM
EN
T)
11-1
9 A
DJU
ST
AN
D C
ALI
BR
AT
E O
IL P
RE
SS
UR
E S
AF
ET
YC
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
pre
ss r
e in
bel
low
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[e
xpan
sion
of b
ello
ws]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e io
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing-
-[m
fg. d
ata
plat
e]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n--[
rein
gera
nt]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts-
- -[
MG
]M
easu
rem
ent:
Non
-geo
met
ricLi
quid
Wei
ght
Liqu
id-
-[ef
fect
of r
efrig
eran
t on
cont
rol]
Bas
ic L
ogic
Ded
uctiv
e/ In
duct
ive[
dedu
ctiv
e di
agno
sis]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail I
nfer
ence
Det
ail I
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
51"'
of".
e.11
#
(TA
SK
ST
AT
EM
EN
T)
II-20
CH
EC
K IC
E M
AK
ER
FO
R O
PE
RA
TIO
N
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
STK
VO
MW
irin
g D
iagr
am
Che
ck c
ontin
uity
of
ice
mak
er a
ssem
bly
Adj
ust a
ssem
bly
Rem
ove
and/
or r
epla
ce
DE
CIS
ION
S
Det
erm
ine
if th
ere
is c
ontin
uity
thro
ugh
com
pone
nts
of a
ssem
bly
Det
erm
ine
wha
t com
pone
nt is
in o
pera
tion
.11.
1101
1111
11!1
1111
1W
CU
ES
Wat
er o
ser
flow
sR
otor
doe
s no
t rev
olve
Cub
es a
re n
ot d
isch
arge
d fr
om u
nit
SA
FE
TY
- H
AZ
AR
D
Safe
ty:
Alw
ays
disc
onne
ct c
ircu
it an
d lo
ck o
ut b
reak
er b
efor
ew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of
hand
tool
s
Haz
ard:
Ele
ctri
cal s
hock
, ele
ctri
cal b
urn
Inju
ry to
one
self
or
othe
rs
ER
RO
RS
Failu
re to
fin
d no
nfun
ctio
ning
com
pone
nt w
ould
res
ult i
ner
ratic
ope
ratio
n of
ice
mak
er
1
(TA
SK
ST
AT
EM
EN
T)
II-20
CH
EC
K IC
E M
AK
ER
FO
R O
PE
RA
TIO
N
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
ncia
l adv
anta
ge.
[ST
K]
Mag
netic
fiel
ds o
f for
ceR
esis
tanc
e of
mat
eria
ls to
flow
of e
lect
rical
cur
rent
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
iuon
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion-
[ref
riger
ant]
Pro
pert
y of
com
paris
on--
-[m
easu
re p
ress
ures
]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts[
MO
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e In
duct
ive
[DD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emet
icV
OM
- C
ontin
uity
Com
pone
nts/
Wiri
ng d
iagr
am
Ser
vice
ord
er
Ter
min
olog
yW
iring
dia
gram
Det
ail/i
nfer
ence
Vis
ual a
naly
sis
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
..7%
...
53
(TA
SK
ST
AT
EM
EN
T)
11-2
1 C
HE
CK
AN
D A
DJU
ST
WA
TE
R V
ALV
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
GC
heck
wat
er in
let t
empe
ratu
reC
heck
wat
er o
utle
t tem
pera
ture
Adj
ust w
ater
val
ve s
tem
to c
orre
ct a
ny te
mpe
ratu
re d
iffer
ence
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
S
Det
erm
ine
adju
stm
ent a
ccor
ding
to m
fg. s
peci
ficat
ions
.
CU
ES
Nor
mal
wat
er te
mpe
ratu
res
will
be
mai
ntai
ned,
allo
win
g fo
rop
erat
ing
pres
sure
s ru
n no
rmal
ER
RO
RS
Fai
lure
to m
ake
corr
ect a
djus
tmen
t wou
ld r
esul
t in
unit
oper
atin
gw
ith e
xces
sive
hea
d pr
essu
re o
r ex
cess
ive
wat
erco
nsum
ptio
n
(TA
SK
ST
AT
EM
EN
T)
11-2
1 C
HE
CK
AN
D A
DJU
ST
WA
TE
R V
ALV
E
SC
IEN
CE
----
-M
AT
H -
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[con
duct
ion
of c
onde
nser
coi
l to
wat
er-m
easu
ring
sens
ible
hea
t by
ther
mom
eter
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[e
xpan
sion
and
con
trac
tion
of a
bel
low
s]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
tie s
houl
d co
nsul
t app
ropr
iate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing-
[mfg
dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
s[e
ffect
of r
efrig
eran
t pre
ssur
e on
bel
low
s]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
[ther
mom
eter
)M
easu
rem
ent:
Non
-geo
met
ricT
empe
ratu
reW
eigh
tLi
quid
[ref
riger
ant i
n sy
stem
)B
asic
Log
icD
educ
tive/
Indu
ctiv
e---
[ded
uctiv
e di
agno
sis]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
e ',
Rea
ding
Vie
win
g
Tou
chin
g
Writ
ing
MG
TT
MG
TT 17 Ser
vice
Ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Tem
pera
ture
Inl r
epor
tT
erm
inol
ogy
Cla
rity
of e
xpre
ssio
n
55
(TA
SK
ST
AT
EM
EN
T)
11-2
2 C
HE
CK
HO
T G
AS
DE
FR
OS
TS
OLE
NO
ID A
ND
VA
LVE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
SI K
VO
M
A`
Che
ck m
echw
inca
l ope
ratio
n of
sal
veC
heck
sol
eni i
d co
ntin
uity
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
s
Haz
ard:
Ele
ctric
al s
hock
-el
ectr
ical
bur
n
DE
CIS
ION
S
Det
erm
ine
if ho
t gas
def
rost
sol
enoi
d va
lue
is c
yclin
gD
eter
min
e if
defr
ost t
rip m
echa
nism
is o
pera
tive
CU
ES
Coo
ling
coil
has
fros
t hui
ld-u
pC
oolin
g ar
ea h
as h
ighe
r th
an n
orm
al te
mpe
ratu
res
ER
RO
RS
Impr
oper
dia
gnos
is w
ill r
esul
t in
cont
inue
d de
fros
t mal
func
tion
(TA
SK
ST
AT
EM
EN
T)
11-2
2 C
HE
CK
HO
T G
AS
DE
FR
OS
T S
OLE
NO
ID A
ND
VA
LVE
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b 2n
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
f VO
WG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce
Ded
uctiv
e/ In
duct
ive-
---[
Ded
uctiv
e D
iagn
osis
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emet
icV
OM
-Con
tinui
ty
Com
pone
nts/
Wiri
ng d
iagr
am
Ser
vice
ord
er
Ter
min
olog
yW
iring
dia
gram
Det
ail/i
nfer
ence
Vis
ual a
naly
sts
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
tr.4
.1....
57
(TA
SK
ST
AT
EM
EN
T).
II -
23C
HE
CK
HU
MID
ITY
WIT
H S
LIN
G P
SYC
HR
OM
ET
ER
P,
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
SP Dis
tille
d w
ater
Ope
rate
slin
g ps
ychr
omet
erR
ecor
d re
adin
gs in
sev
eral
loca
tion.
,R
ecor
d ou
tsid
e re
adin
gs
I
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
hum
idity
con
ditio
nsT
o re
cord
ire
adin
g of
50-
55%
rel
ativ
e hu
mid
ityIn
accu
rate
rea
ding
cou
ld r
esul
t in
impr
oper
dia
gnos
isun
it to
o sm
all
(TA
SK
ST
AT
EM
EN
T)
11-2
3 C
HE
CK
HU
MID
ITY
WIT
H S
LIN
G P
SY
CH
RO
ME
TE
R
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Eff
ect o
f he
atin
g an
d co
olin
g oa
sta
te o
f m
at e
r[h
umid
ity e
ffec
t on
elem
ent]
Res
ista
nce
of m
ater
ials
to c
hang
e in
sha
pe[H
ydro
scop
ic e
lem
ent e
xpan
ding
& c
ontr
acti
ig (
stre
tchi
ng]
Eff
ect o
f he
atin
g an
d co
olin
g on
exp
ansi
on o
f m
ater
ials
[Spi
rit t
herm
omet
ers]
Beh
avio
ral
Scie
nce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
it a
know
ledg
eabl
e w
ay, a
ndpr
omot
e hi
s em
ploy
er w
hene
ver
poss
ible
.H
e sh
ould
con
sult
appr
opri
atel
y w
hen
diffi
culty
ans.
'.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to ti
e --
..iir
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
prcs
ure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
sari
lydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of
cost
s sh
oula
be
accu
rate
, hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is f
ello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rit.
-B
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Prop
erty
of
com
pari
sion
[m
easu
rem
ent o
f ps
ychr
omet
er s
cale
]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
inst
rum
ents
[psy
chro
met
er]
Giv
en a
n In
stru
men
t of M
easu
re, d
tterm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fica
nt d
igits
, and
tole
ranc
e--(
psyc
hrom
eter
and
inst
rum
ent o
f m
eaau
re]
Mea
sure
men
t: N
on-g
eom
etri
c[t
herm
omet
ers
in p
sych
rom
eter
]
CO
MM
UN
ICA
TIO
NS
- -
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Tou
ch
Wri
ting
SP Tae
rmom
eter
s in
SP
Serv
ice
orde
r
Det
ail i
nfer
ence
Tem
pera
ture
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
59
(TA
SK
ST
AT
EM
EN
T)
11-2
4 C
HE
CK
AN
D A
DJU
ST
HU
MID
IST
AT
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N'
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
K
DE
CIS
ION
S
Det
erm
ine
cont
rol n
eeds
, ctu
stm
ent o
r re
plac
emen
t
Loca
te c
ontr
olC
heck
hyd
rosc
opic
ele
men
tA
djus
tle
st
4r,
SA
FE
TY
- H
AZ
AR
D
Saf
ety
Alw
ays
disc
ontm
t circ
uit a
nd lo
ck o
ut b
reak
er b
efor
ew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of h
and
tool
s
Haz
ard
Ele
ctric
al s
hock
. ele
cnbu
rn
Inju
ry to
one
self
or o
ther
s
CU
ES
ER
RO
RS
loo
muc
h hu
mid
ity in
war
m s
easo
nF
ailu
re to
mak
e pr
oper
adj
ustm
ent o
r pl
acem
ent w
ill c
ause
Dry
ness
in c
old
seas
onun
com
fort
able
air
cond
ition
ing
cond
ition
s
(TA
SK
ST
AT
EM
EN
T)
11-2
4 C
HE
CK
AN
D A
DJU
ST
HU
MID
IST
AT
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]H
ydro
scop
ic e
lem
ent e
xpan
ds a
nd c
ontr
acts
due
to m
oist
ure
in a
ir
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t th.
. rzp
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
:r q
uest
ions
whi
ch r
elat
:s to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
Ha
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt ta
ch o
ther
s pr
ofes
sion
alis
m.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tnon
)A
dditi
on a
lgor
ithm
Suh
trac
tion
algo
rithm
Bas
ic L
ogic
Ded
uctiv
e In
duct
ive-
[ded
uctiv
e di
agno
sis)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Vie
win
g
Wal
ing
Hum
idis
tat
Ser
vice
ord
er
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
lari
ty o
f ex
pres
sion
61
(TA
SK
ST
AT
EM
EN
T)
11-2
5 C
HE
CK
CO
ND
EN
SAT
E P
UM
P A
ND
DR
AIN
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Si K
VO
MC
heck
pow
er s
uppl
y to
pum
p m
om,
Che
ck m
otor
for
cont
inui
tyC
heck
or
adju
st m
echa
nica
l flo
at a
nd a
rm fo
r pr
oper
leve
lIn
spec
t dra
in
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
befo
rew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of h
and
tool
s
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
S
Det
erm
ine
if pu
mp
or m
otor
are
faul
ty o
r dr
ain
plug
ged
CU
ES
Mot
or d
oes
not r
unM
otor
run
s bu
t doe
s no
t pum
p
ER
RO
RS
Fai
lure
to m
ake
prop
er te
st a
nd a
djus
tmen
t will
res
ult i
n ex
cess
ive
wat
er b
uild
-up
in c
onde
nsat
e tr
ay
(TA
SK
ST
AT
EM
EN
T)
h-25
CH
EC
K C
ON
DE
NS
AT
E P
UM
P A
ND
DR
AIN
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]M
agne
tic fi
elds
of f
orce
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt
Beh
avio
ral S
cien
ce.
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
leH
e sh
ould
con
sult
appr
opria
tely
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
tin. p
rem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in'A
stra
ight
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asle
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.[V
UM
)B
asic
1 o
gle
Ded
uct i
s e
Indu
ct is
e[D
O)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emat
icV
OM
-Con
tinui
ty
Com
pone
nts/
Wiri
ng d
iagr
am
Ser
vice
ord
er
Ter
min
olog
yW
iring
dia
gram
Det
ii/in
fere
nce
Vis
ual a
naly
sis
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
63
(TA
SK
ST
AT
EM
EN
T)
11-2
6 C
HE
CK
BL
OW
ER
ASS
EM
BL
Y A
ND
FIL
TE
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
,,,k
. -1
SA
FE
TY
- H
AZ
AR
D
ST
KV
OM
Che
ck fi
lter
Che
ck p
ower
sup
ply
if bl
ower
mot
or is
inop
erat
ive.
Che
ck a
nd a
djus
t bel
tC
heck
mot
or b
earin
gs a
nd O
ilR
epla
ce a
ny d
efec
tive
com
pone
nts
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if m
alfu
nctio
n is
mec
hani
cal
or e
lect
rical
Det
erm
ine
blow
er a
ssem
bly
spec
ifica
tions
acco
rdin
g to
mfg
. spe
cific
atio
ns
No
heat
or
cool
ing
Noi
syT
empe
ratu
res
too
high
or
too
low
Fai
lure
to m
ake
prop
er d
iagn
osis
wou
ld r
esul
t in
repl
acin
g un
nece
ssar
y pa
rts
and/
or n
ot s
olvi
ng th
e co
mpl
aint
(TA
SK
ST
AT
EM
EN
T)
11-2
6 C
HE
CK
BLO
WE
R A
SS
EM
BLY
AN
D F
ILT
ER
1101
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0 SC
IEN
CE
r130
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4
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge(S
TK
]M
agne
tic fi
elds
of f
orce
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt
Beh
avio
ral E
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e lo
b an
d pn
de in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e. h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner
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shou
ld g
et a
long
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his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
tha:
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Fur
ctio
nal O
pera
tions
(C
alcu
latio
n)A
dditi
onal
alg
orith
mS
ubtr
actio
n al
gorit
hm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts:
Giv
en a
n In
stru
men
t of M
easu
re. d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
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MI
Rea
ding
and
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raph
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phs
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ng D
iagr
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ic L
ogic
Ded
uctiv
e/In
duct
ive.
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I
CO
MM
UN
ICA
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NS
PE
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E M
OD
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Rea
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win
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Writ
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AM
PLE
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emat
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ty
Com
pone
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I L L
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Ter
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olog
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gram
Det
ailii
ofer
ence
Vis
ual a
naly
st:.
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
(TA
SK
ST
AT
EM
EN
T)
11-2
7 C
HE
CK
HE
AT
PU
MP
RE
VE
RSI
NG
SY
STE
M
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
iEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
-lf
SA
FE
TY
HA
ZA
RD
ST
KV
OM
MG
Che
ck th
erm
osta
t circ
uit t
o so
leno
id v
alve
sC
heck
ope
ratio
n of
rev
ersi
ng a
nd c
heck
val
ves
Che
ck s
yste
m p
ress
ures
Rem
ove
and
repl
ace
any
defe
ctiv
e co
mpo
nent
acc
ordi
ng to
mfg
.sp
ecifi
catio
ns
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refn
gera
nts
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if re
vers
ing
valv
es a
re m
anua
lor
ele
ctric
ally
ope
rate
dD
eter
min
e ty
pe o
f sys
tem
acc
ordi
ngto
mfg
's s
peci
ficat
ions
Uni
t run
sno
heat
Uni
t run
sno
cool
ing
Fai
lure
to p
rope
rly id
entif
y pr
oper
rev
ersi
ng s
yste
mw
ould
res
ult i
n im
prop
er d
iagn
osis
and
repa
ir
AS
K S
TA
TE
ME
NT
) 11
-27
CH
EC
K H
EA
T P
UM
P R
EV
ER
SIN
G S
YST
EM
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
t) a
nd in
tegn
t)H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
he p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
he p
rem
ises
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y In
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e. h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
des
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
---
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing
{mfg
dat
a pl
ate(
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
idgo
nthm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n(re
frig
eran
t)P
rope
rty
of c
ompa
rison
{mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
{MG
and
WM
IIn
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
i.,;o
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive(
DD
)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PL
SK
ILLS
/CO
NC
EP
TS
Rea
ding
Vie
win
g
Writ
ing
.....
MG
VO
MS
ervi
ce o
rder
.
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
t (0"
w'a
)0.-
ar.
67
11-2
8 C
HE
CK
SY
STE
M F
OR
BU
RN
OU
T A
ND
IN
STA
LL
CL
EA
NU
P(T
AS
K S
TA
TE
ME
NT
) K
IT
TO
OLS
, EQ
UIP
ME
NT
, MA
l'E
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KS
yste
m c
lean
er(s
porla
n)A
cid
test
kit
Rem
ove
com
pres
sor
Inst
all r
epla
cem
ent c
ompr
esso
r, s
yste
m c
lean
er a
nd d
rier
Eva
cuat
eR
echa
rge
Tes
t oil
for
colo
r an
d ac
idity
Rem
ove
syst
em c
lean
er
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if bu
rnou
t has
occ
urre
d by
follo
win
gth
e el
ectr
ical
test
s re
com
men
ded
byth
e eq
uipm
ent m
fg.
Det
erm
ine
size
of u
nit a
nd th
e pr
oper
cle
anin
gpr
oced
ure
to b
e us
ed.
Com
pres
sor
inop
erat
ive
No
refr
iger
atio
nF
ailu
re to
det
erm
ine
if a
burn
out h
as o
ccur
red,
and
a ne
w c
ompr
esso
r is
inst
alle
d w
ithou
tpr
oper
cle
anou
t will
res
ult i
n fu
ture
sys
tem
and
com
pres
sor
failu
re'
II-28
CH
EC
K S
YST
EM
FO
R B
UR
NO
UT
AN
D I
NST
AL
L C
LE
AN
UP
(TA
SK
ST
AT
EM
EN
T)
KIT
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l :.tI
vant
age
(ST
K]
Flu
ids
unde
r pr
essu
re(r
efrig
eran
t
Beh
avio
ral S
cien
ce
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
nese
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
oiffi
culty
aris
esH
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
kE
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
des
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
-R
atio
nal N
umbe
rs
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
(ref
riger
ant(
Pro
pert
y of
com
paris
ion(
mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
ptsI
MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d /o
r ac
cura
cy w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
e'lr
,r*
1
69
(TA
SK
ST
AT
EM
EN
T)
II-2
9 SE
RV
ICE
EL
EC
TR
ON
IC A
IR C
LE
AN
ER
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KV
OM
..
Che
ck p
ower
sup
ply
and
disc
onne
ctR
emov
e fil
ters
and
cle
anR
epla
ce a
ny d
efec
tive
com
pone
nt a
ccor
ding
to m
fg's
spe
cific
atio
ns
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
wha
t typ
e el
ectr
onic
air
clea
ner
is in
stal
led
onC
usto
mer
dis
com
fort
syst
emA
ir ha
s hi
gh r
ate
of p
olle
n, d
ust
,If
self
clea
ning
, che
ck w
ater
sup
ply
Uni
t not
func
tioni
ng p
rope
rlysh
ort c
yclin
g
Fai
lure
to d
eter
min
e w
hat t
ype
is in
stal
led
wou
ld r
esul
t in
impr
oper
ser
vice
or
need
less
repl
acem
ent o
f com
pone
nts
(TA
SK
ST
AT
EM
EN
T)
II -2
9 S
ER
VIC
E E
LEC
TR
ON
IC A
IR C
LEA
NE
R
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Baa
s io
ral S
cien
ce
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
.1ris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ityH
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
pnde
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out
unne
cess
arily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e. h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
tello
w e
mpl
oyee
and
des
elop
a r
ehtio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing-
give
n a
codi
ngsy
stem
, rec
ogni
ze a
nd id
entif
y ea
ch u
nit i
nvol
ved
byas
sign
ing
nece
ssar
y sy
mbo
ls, n
umer
ical
or
liter
alB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sR
epre
sent
atio
nal
grap
hs(w
irin
gdi
agra
m r
Inst
rum
ents
-1 V
OM
JB
ask
Logi
cDed
uctiv
e/In
duct
iveI
Ded
uctiv
e di
agno
sis)
CO
MM
UN
ICA
TIO
NS
.
PE
RF
OR
MA
NC
E M
OD
ES
.
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emet
icV
OM
-Con
tinui
ty
Com
pone
nts/
Wiri
ng D
iagr
am
Ser
vice
ord
er
Ter
min
olog
yW
iring
dia
gram
Det
ail/i
nfer
ence
Vis
ual a
naly
sis
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
11
Duty III Servicing and Repairing Refrigttatiun and Air Conditioning Equipment
1 Evacuate a refrigeration system2 Pump system down into receiver tank3 Recharge system using sight glass4 Recharge system weighing in refrigerent5 Fill dial a charge6 Recharge a refrigeration system using dial a charge7 Remove and replace control thermostat8 Remove and replace defrost timer9 Remove and replace motor overload protector
10 Remove and replace capacitor11 Remove and replace defrost heater12 Remove and replace defrost terminator13 Remove and replace relay14 Remove and replace fan motors15 Repair leak in copper lines of system16 Remove and replace compressor17 Add oil to system18 Remove restriction from capillary tube19 Remove and replace capillary tube20 Remove and replace automa.ic expansion valve21 Remove and replace thermostatic expansion valve22 Install a drier, sight glass or moisture indicator23 Remove and replace high or low pressure safety control24 Remove and replace high or low pressure motor control25 Remove and replace oil pressure safety control26 Remove and replace hot gas defrost solenoid and valve27 Repair evaporator with epoxy28 Remove and replace condensation pump motor29 Remove and replace humidistat30 Balance the air conditioning system
73
(TA
SK
ST
AT
EM
EN
T)
III-1
EV
AC
UA
TE
AR
EFR
IGE
RA
TIO
N S
YST
EM
f;2
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Set
of S
tand
ard
Too
lsV
acuu
m p
ump
Man
ifold
and
gau
ge
Run
pum
p un
til g
auge
rea
ds a
nd h
olds
at 2
9.9°
vac
uum
. Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
S
...
4
ER
RO
RS
Atta
ch v
acuu
m p
ump
and
evac
uate
sys
tem
Rem
ove
all c
ont n
inan
ts a
nd m
oist
ure
Fai
lure
to c
ompl
etel
y ev
acua
te th
e sy
stem
wou
ld r
esul
tin
poss
ible
inef
ficie
nt c
oolin
g w
hen
rech
arge
d
(TA
SK
ST
AT
EM
EN
T)
HI-
I EV
AC
UA
TE
AR
EF
RIG
ER
AT
ION
SY
ST
EM
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
r..c
al a
dvan
tage
[ST
K]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
b;e
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le,
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
. aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b al
han
d w
ith h
ones
ty a
nd in
tegr
ity.
tie s
houl
d m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e Jo
b an
d pr
ide
in w
ork
Em
plla
sis
shou
ld b
e pl
aced
upo
n pe
rfor
min
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
eni
-r o
nly
into
thos
e -u
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
e,lis
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
edB
illin
g an
d di
scus
sion
of c
osts
sta
nk' b
e ac
cura
te, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
Rat
iona
l Num
bers
hund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sab
a:w
in, i
alg
orith
mB
asic
Arit
hmet
ic S
kills
and
C'o
ncep
tslv
,,no
and
prop
ortio
nIn
:Inge
r:in
t)P
rope
rty
of c
ompa
rison
[mea
surin
g]H
aw M
easu
rem
ent S
kills
and
Con
cept
s [N
M]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
iE
XA
MP
LES
Red
ing
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
SK
I LLS
/CO
NC
EP
TS
Det
aii i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y /g
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
75R
ri
(TA
SK
ST
AT
EM
EN
T)
111-
2 P
UM
P S
YS
TE
M D
OW
N IN
TO
RE
CE
IVE
R T
AN
K
UP
ON
TO
OLS
, EQ
UIP
ME
NT
MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D
or)
Ai
rstJ
S
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
ST
KM
GLo
cate
rec
ener
tank
clo
se v
alve
to li
quid
line
Sta
rt u
nit
Obs
erve
gau
ges
Clo
se s
uctio
n se
rvic
e va
lve
DE
CIS
ION
S
Det
erm
ine
how
to e
vacu
ate
syst
em to
isol
ate
com
pone
nt fo
rre
pair
Saf
ety:
Pro
per
care
and
use
of h
and
tool
s
lia7a
rd:
Per
sona
l inj
ury
coul
d oc
cur
CU
ES
ER
RO
RS
Com
pone
nt m
u,, h
e ch
ange
dF
ailu
re to
pro
perly
eva
cuat
e sy
stem
vou
ld r
esul
i in
poss
ible
Sys
tem
mus
t he
evac
uate
dlo
ss o
f ref
riger
ant o
r ex
posi
ng s
yste
m to
moi
stur
e
(TA
SK
ST
AT
EM
EN
T)
111-
2 P
UM
P S
YS
TE
M D
OW
N IN
TO
RE
CE
IVE
R T
AN
K
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ph: m
achi
nes
used
to p
in m
echa
nica
l adv
anta
ge[S
1 K
JF
luid
s un
der
pres
sure
[ref
riger
ant]
Beh
avio
ral S
cien
ce
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssih
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch i
rate
s to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ityH
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
kE
mph
asis
sho
uld
be p
lace
d up
on p
erto
rmin
z, th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
lor
the
prc.
--is
esH
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
doh
at h
and.
Per
sona
l ent
angl
emen
ts o
f arg
umen
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
Rat
iona
l Num
hers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Ad
dit i
on a
lgor
it hi
ltS
uhtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
[ref
riger
ant]
Pro
pert
y of
com
paris
on[m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
c,:p
tsIn
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
su e
det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
:th r
espe
ct to
rela
tive
en-o
r. .i
gnifi
cant
di
:.nd
tole
ranc
e.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
MG
MG
Ser
vice
ord
er
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
4-)
r--
(4i-T
ht
77
(TA
SK
ST
AT
EM
EN
T)
111-
3 R
EC
HA
RG
E S
YS
TE
M U
SIN
G S
IGH
TG
LAS
S
TO
OLS
, EQ
UIP
ME
NT
MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Set
of S
tand
ard
Too
lsM
anifo
ld a
nd g
auge
sT
ank
of r
efrig
eran
t 12
or 2
2(a
s sp
ecifi
ed fo
r un
it) DE
CIS
ION
S
Fva
cuat
e sy
stem
Sta
rt u
nit
Obs
erve
pre
ssur
esO
bser
ve r
efrig
eran
t flo
ss th
roug
h si
ght g
lass
CU
ES
Atta
ch ta
nk to
loss
sid
e an
d ch
arge
in v
apor
form
lo c
harg
e th
e ss
stem
by
obse
rvin
g th
e si
ght g
lass
unt
il it
clea
rs
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
ER
RO
RS
Fai
lure
to W
ow th
e pr
escr
ibed
met
hod
of c
harg
ing
with
vapo
r w
ith th
e un
it ru
nnin
g, w
ould
cau
se d
amag
e to
the
corn
pre
ssor
(TA
SK
ST
AT
EM
EN
T)
III-
3 R
EC
HA
RG
E S
YST
EM
, USI
NG
SIG
HT
GL
ASS
Beh
avio
ral S
cien
ce.
MA
TH
- N
UM
BE
R S
YS
TE
MS
Tec
hnic
ian
shou
ld ta
lk o
nly
ahou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
neve
r po
ssih
leH
e sh
ould
con
sult
appr
opria
tely
Nhe
n di
fficu
lty a
rises
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir lo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bst
wee
n pr
essu
re to
com
plet
e do
h an
d pr
ide
.11
wor
kE
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
me
cust
omer
rel
atio
ns -
Ft,:
h pe
rtai
n to
the
Job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
snou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
he a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op tt
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l N a
bets
I und
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
is A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[r
efrig
eran
t)P
rope
rtof
com
paris
on(m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s [M
G)
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror.
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
ing:
Indu
ctee
[DI)
)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
EX
AM
PLE
SS
KI L
LS /C
ON
CE
PT
S
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
79
-4al
ta.6
%(-
4t 4
(TA
SK
ST
AT
EM
EN
T)
III-
4 R
EC
HA
RG
E A
SY
STE
M W
EIG
HIN
G I
N R
EFR
IGE
RA
NT
_
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
1 E
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Set
of S
tand
ard
Too
lsM
anifo
ld a
nd g
auge
sT
ank
of r
efrig
zran
t (as
spe
cifie
d fo
r un
it)S
cale
Eva
cuat
e ss
i.:rn
Pur
ge li
ne .1
rom
tank
to m
anifo
ldO
btai
n to
tal w
eigh
t of t
ank
Obs
erve
wha
t the
tota
l wei
ght s
houl
d be
with
full
char
ge in
sys
tem
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ots
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
char
ge u
ntil
spec
ified
am
ount
is ta
ken
into
sys
tem
Cha
rge
the
sNst
ein
with
reI
nger
ant b
y m
easu
ring
in th
e co
rrec
tw
eigh
t as
foun
d on
the
mfg
nam
e pl
ate
loca
ted
on th
e un
itM
isca
lcul
atio
n co
uld
resu
lt in
und
er c
harg
e or
ove
r ch
arge
afte
ct n
g pe
rfor
man
ce o
f uni
t
I.'
(TA
SK
ST
AT
EM
EN
T)
iII-
4 R
EC
HA
RG
E A
SY
STE
M W
EIG
HIN
G I
NR
EFR
IGE
RA
NT
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Beh
avio
ral S
cien
ce-
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
joh
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
esH
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
He
shou
ld. m
aint
a:n
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e lo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
Rat
iona
l Num
hers
-
hind
amen
tal O
pera
tions
(C
akal
atio
n)A
dditi
on a
lgor
ithm
Suh
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[r
elrig
eran
t]P
rope
tty 0
1 co
mpa
rison
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
[MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctis
e In
duct
ise
[DD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y /g
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
81
(TA
SK
ST
AT
EM
EN
T)
III-5
FIL
L D
IAL
A C
HA
RG
EV
1,1
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
DC
SS
-I5
or S
S 1
6 ac
cord
ing
to m
fg's
spe
cific
atio
nsS
et u
p di
al a
nd c
harg
er to
hoo
k-up
sup
ply
tank
Fill
cha
rger
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refn
gera
nts
Car
e an
d us
e of
han
d to
ols
Hua
rd
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
type
and
am
ount
of r
efrig
eran
t req
uite
dA
mou
nt o
f ref
riger
ant r
equi
red
1pe
of r
efrig
eran
t req
uire
dIm
prop
er a
mou
nt o
r ty
pe w
ould
cau
se p
oor
perf
orm
ance
(TA
SK
ST
AT
EM
EN
T)
III-5
FIL
L D
IAL
A C
HA
RG
E
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
I I
Beh
avio
ral S
t-,:c
nce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
Job
and
in a
kno
wle
dgea
ble
was
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le,
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
esH
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e r.
.pai
r jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
,zho
uld
be c
autio
ned
to e
nter
onl
y In
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
itand
. Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
od a
rel
atio
nshi
p tn
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
(w
ithou
t cal
cula
tion)
Cod
ing
Imig
Dat
a P
late
]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[r
efrig
eran
t]P
rope
rty
of c
ompa
rison
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.[d
ial a
cha
rge]
.
CO
MM
UN
ICA
TIO
NS
PE
R F
..1R
MA
NC
E M
OD
ES
-.... E
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
Rea
ding
Vie
win
g
Writ
ing
41/4
Dat
a pl
ate
DC
;),C -s
,
Ser
vice
ord
er
R
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
8391
(TA
SK
ST
AT
EM
EN
T)
III-
6 R
EC
HA
RG
E A
RE
FRIG
ER
AT
ION
SY
STE
M U
SIN
G D
IAL
A C
HA
RG
Eq
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Set
of S
tand
ard
Too
lsM
anifo
ld a
nd g
auge
sD
ial a
zna
rge
(fill
ed to
mfg
spc
,:ifie
d am
ount
01 r
efrig
eran
t)
...
I
Eva
cuat
e sy
stem
Pur
ge li
ne fr
om d
ial a
cha
rge
to m
anifo
ldS
tart
uni
t and
obs
erve
gau
ges
Che
ck p
ress
ures
and
tem
pera
ture
s
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refn
gera
nts
Can
: and
use
of h
and
tool
s
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
1,11
1111
1111
1111
1111
1111
1111
11^4
. 'D
EC
ISIO
NS
CU
ES
ER
RO
RS
Det
erm
ine
corr
ect c
harg
e fo
r lo
u si
de w
ith s
peci
fied
amou
nt o
f ref
riger
ant
Mea
sure
into
the
syst
em th
e ex
act a
mou
t of
refr
iger
ant s
peci
fied
Fai
ling
to c
alcu
late
the
prop
er p
ress
ure
of d
ial a
cha
rge
and
mea
surin
g sc
ale
wou
ld r
esul
t in
an o
ver
char
ge o
r an
unde
r ch
arge
(TA
SK
ST
AT
EM
EN
T)
111-
6 R
EC
HA
RG
E A
RE
FR
IGE
RA
TIO
N S
YS
TE
M U
SIN
G D
IAL
A C
HA
RG
E
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n rn
efaa
inic
al a
dsan
tage
[ST
K. s
alve
wre
nch)
Effe
ct o
f hea
ting
and
tool
ing
on e
xpan
sion
of m
ater
ials
Effe
ct o
f hea
ting
and
cool
ing
on s
tate
of m
atte
r[r
efrig
eran
t)F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
at.
pres
s)T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[hea
t tra
nsfe
r ev
apor
ator
con
dens
er]
Beh
avio
ral S
cien
ce:
Tec
'nic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
hle
way
. and
pno
te h
is e
mj:l
oyer
whe
neve
r pa
ssih
le.
He
u..1
con
sult
appr
opria
tely
whe
n ,.I
ficul
ty a
rises
He
old
answ
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
h an
d pr
ide
inw
oik.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at
hand
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
rthe
pre
mis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed,
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed m
a s
trai
ght
forw
ard
man
ner.
He
houl
d ge
t alo
ng w
ith h
is fe
llow
em
plo;
:e a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
r:. p
rofe
ssio
nalis
m.
Rat
iona
l Num
hers
Use
s of
Num
hers
, (w
ithou
t cal
cula
tion)
Cod
ing
[mtg
. dat
a pl
ate)
hund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sat
rac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[r
efrig
eran
t)P
rope
rty
of c
ompa
rison
[dia
l a c
harg
e]B
asle
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
[dia
l a c
harg
em
anifo
ld &
gau
ges)
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.M
easu
rem
ent'
(Non
-geo
met
ric)-
-(re
fnge
rant
l1
empe
rat t
ireW
eigh
tLi
quid
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Writ
ing
Vie
win
g
Dat
a pl
ate
Dia
l a c
harg
e
Ser
vice
ord
er
Dia
l a c
harg
e
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
Det
ail i
nfer
ence
ci " - 1
85
(TA
SK
ST
AT
EM
EN
T)
111-
7 R
EM
OV
E A
ND
RE
PLA
CE
CO
NT
RO
L T
HE
RM
OS
TA
T
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
...--
---
SA
FE
TY
HA
ZA
RD
ST
KM
GIn
stal
l man
ifcld
and
gau
ges
Loca
te a
nd r
emov
e co
ntro
lIn
stal
l rep
lace
men
t con
trol
Che
ck a
nd te
st c
ontr
ol
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Ha'
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
cont
rol i
n op
erat
ise
Adj
ustm
ent c
an n
ot h
e m
ade
with
acc
urac
yS
elec
t rep
lace
men
t acc
ordi
ng to
mtg
. mod
el a
ndP
ower
ele
men
t has
lost
cha
rge
rena
l num
ber
Ope
n ci
rcui
t
...
.
Inco
rrec
t rep
lace
men
t will
res
ult i
n im
prop
er in
stal
latio
n, a
nder
ratic
coo
ling
coil
tem
pera
ture
s.
(TA
SK
ST
AT
EM
EN
T)
111-
7 R
EM
OV
E A
ND
RE
PLA
CE
CO
NT
RO
LT
HE
RM
OS
TA
T
SC
IEN
CE
MA
TH
--
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l ads
anta
ge[S
[ K]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure
in b
ello
ws]
11 fe
et o
f hea
ting
and
cool
ing
on e
pans
ion
of m
ater
ials
[pow
er e
lem
ent i
n th
erm
osta
t)
Beh
avio
ral S
cien
ce
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
:ver
pos
sibl
eH
e sh
ould
con
sult
appr
opria
tely
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
Inte
gra)
He
shou
ld m
aint
ain
a pr
over
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork
Em
phas
is s
houl
d be
pla
cea
pon
perf
orm
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
until
ig s
urro
undi
ng a
ctili
ttes
and
he s
houl
d sh
ow c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
Rat
iona
l Num
bers
Use
s et
Num
bers
(w
ithou
t cal
cula
tion)
Cod
ing
[nag
dat
a pl
ate)
fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s [M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror.
sig
nific
ant d
igits
, and
tole
ranc
e.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
r ,f,
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
nty
of e
xpre
ssio
n
1' c
'
87
(TA
SK
ST
AT
EM
EN
T)
III-
8 R
EM
OV
E A
ND
RE
PLA
CE
DE
FRO
ST T
IME
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N4/
0/M
//////
elM
1111
1010
1111
1111
1
Si K
Win
n*: D
iagr
am
f'dr
.:."
-t-lo
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Loca
te d
efro
st ti
mer
Rem
ove
from
mou
ntin
gIn
stal
l and
test
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Hai
ltrd
Ele
ctric
al s
hock
. ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
Sar
,
Det
erm
ine
if de
fmtim
er is
def
ectiv
eS
elec
t rep
lace
mem
tim
er a
ccor
ding
to u
nit m
odel
and
seria
l num
ber
CU
ES
Def
rost
tim
er s
hort
edD
efro
st ti
mer
has
ope
n em
itut
ER
RO
RS
Fai
lure
to m
ake
corr
ect r
epla
cem
ent w
ould
res
ult i
n a
long
eror
sho
rter
def
rost
cyc
le
(TA
SK
ST
AT
EM
EN
T)
111-
8 R
EM
OV
E A
ND
RE
PLA
CE
DE
FR
OS
T T
IME
R
SC
IEN
CE
Rid
- T
I-! -
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
,:d to
gai
n in
ecah
nica
l adv
anta
ge[S
11(1
Eff
ect o
fan
d co
olin
g on
exp
ansi
on o
f m
ater
ials
[bi m
etal
]R
esis
tanc
e of
mat
enal
s to
flo
w o
f el
ectr
ical
cur
rent
[mot
or tu
rnin
g tim
er m
echa
nism
]
Beh
avio
ral S
cien
ce:
Tec
hnic
iash
ould
talk
onl
y ab
out t
he r
epai
r jo
b an
d in
a k
now
ledg
eabl
e w
ay. a
ndpr
omos
. his
em
ploy
er w
hene
ver
poss
ible
.H
e sh
ould
con
sult
appr
opri
atel
y w
hen
diff
icul
ty a
rise
s.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
sari
lydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er il
ly in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f co
sts
shou
ld b
e ac
cura
te. h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner
He
shou
ld g
et a
long
with
his
fel
low
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rtea
chot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
of
Num
bers
: (w
ithou
t cal
uela
tum
)C
odin
g(m
fg d
ata
',lat
e)Fu
ndam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mSu
btra
ctio
n al
gori
thm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
retin
g ta
bles
. (ha
rts.
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
SP'.1
Rea
ding
Vie
win
g
Wri
ting
Dat
a pl
ate
Wir
ing
diag
ram
Com
pone
nts
Wir
ing
diag
ram
Serv
ice
orde
r
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls. c
odes
em
blem
s
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of
expr
essi
on
I
89
(TA
SK
ST
AT
EM
EN
T)
111-
9 R
EM
OV
E A
ND
RE
PLA
CE
MO
TO
RO
VE
RLO
AD
PR
OT
EC
TO
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
.7-0
44
SA
FE
TY
- H
AZ
AR
D
ST
KW
iring
Dia
gram
-'
Loca
te c
ompr
esso
r an
d re
mov
e ov
erlo
ad p
rote
ctor
Che
ck r
atin
g an
d re
inst
all r
epla
cem
ent p
rote
ctor
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Hat
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
S
Ove
rload
pro
tect
or w
eak
Ove
rload
pro
tect
or h
as o
pen
circ
uit
ER
RO
RS
Det
erm
ine
prot
ecto
r de
fect
ive
Sel
ect p
rope
r ra
ted
prot
ecto
r ac
cord
ing
to m
fg. s
peci
ficat
ions
Fai
lure
to d
o so
cou
ld c
ause
uni
t dam
age
N.
(TA
SK
ST
AT
EM
EN
T)
111-
9 R
EM
OV
E A
ND
RE
PLA
CE
MO
TO
R O
VE
R L
OA
D P
RO
TE
CT
OR
SC
IEN
CE
MA
TH
NU
MB
ER
oY
ST
EIV
IS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l .ith
anta
ge[S
i Kj
Effe
ct o
f hea
ting
and
cool
ing
on e
wan
sion
of m
ater
ials
pi m
etal
[
Beh
avio
ral S
cien
ce.
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
joh
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
t) :I
nd in
tegr
it%.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
h an
d pr
ide
in w
ork
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
w e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e. h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
de%
elop
a ie
latio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l \ ti
mbe
rs
Use
of \
um
bers
(w
ithou
t cal
in.la
tion)
Cod
ing
[mfg
. dat
a pl
ate)
I. m
ida
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
t met
ion
algo
rithm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
rAin
g ta
bles
. cha
rts.
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
'..--
0
ReL
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
.S
ervi
ce o
rder
:
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls. c
odes
em
blem
s
info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
91
(TA
SK
ST
AT
EM
EN
T)
111-
10 R
EM
OV
F A
ND
RE
PLA
CE
CA
PAC
ITO
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
S Wiri
ng D
iagr
am
DE
CIS
ION
S
Det
erm
ine
capa
cito
r de
tect
ise
heic
st c
apac
itor
vith
cor
rect
mtg
. rat
ing
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
I mat
e m
otor
Rem
osc
cap
acno
tR
epla
ce w
ith n
ew c
apac
itor
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
on u
se o
f han
d to
ols
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
sell
or o
ther
s
CU
ES
Cap
acito
r le
aks
Mot
or d
oes
not m
art
Cap
acito
r sh
orte
d or
has
ope
n (m
em!
ER
RO
RS
Fai
lure
to d
o so
wou
ld r
esul
t m d
amag
e to
mot
or o
r co
mpr
esso
r
(TA
SK S
TA
TE
ME
NT
) 11
1-10
RE
MO
VE
AN
D R
EPL
AC
EC
APA
CIT
OR
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l ads
anta
ge(S
TK
]R
esis
tanc
e of
mat
eria
ls to
now
ol e
lect
rical
cur
rent
[flow
of c
urre
nt]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
nese
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
net
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
the
ol N
umbe
rs: (
with
out c
aluc
latio
n)C
odin
g[m
fg. d
ata
plat
e]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
te M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
retin
g ta
bles
. cha
rts,
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
...--
...-
CO
MM
UN
ICA
TIO
NS
----
--P
ER
FO
RM
AN
CE
MO
DE
SE
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
n a
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls. c
odes
em
blem
s
Info
rtaa
tiona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
93
(TA
SK
ST
AT
EM
EN
T)
HI-
11 R
EM
OV
E A
ND
RE
PLA
CE
DE
FRO
ST H
EA
TE
Rli
el%
elk
4 V
ITO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Si K
Wiri
ng D
iagr
amR
emm
e he
ater
Ilio
n co
olin
g co
,l as
sem
bhIn
stal
l new
hea
ter
Rei
nsta
ll co
olin
g co
il as
sem
hk
Sal
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
hre
aker
he/
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Ha
lard
:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
defr
ost h
eate
r in
oper
ativ
eS
elec
t def
rost
hea
ter
acco
rdin
g to
mod
el a
nd s
eria
l num
ber
Fre
sh fo
od c
ompa
rtm
ent %
%tim
er th
an n
orm
alle
e bu
ild-u
p in
tree
/cr
near
coo
ling
coil
Fai
lure
to s
elec
t cor
rect
hea
ter
wou
ld r
esul
t in
not b
eing
abl
eto
rep
lace
hea
ter
(TA
SK
ST
AT
EM
EN
T)
111-
1 1
RE
MO
VE
AN
D R
EP
LAC
ED
EF
RO
ST
HE
AT
ER
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
ay. a
ndpr
omot
e hi
s em
ploy
er w
hene
ver
poss
ible
.H
e sh
ould
con
sult
appr
opria
tely
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
win
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
jb a
nd p
ride
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
Rat
iona
l Num
bers
Use
of N
umbe
rs: (
with
out c
aluc
latio
n)C
odin
g(m
fg. d
ata
plat
e)F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
retin
g ta
bles
. cha
rts.
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
i C.,.
.1
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls, c
odes
em
blem
s
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l vcc
abul
ary
Cla
rity
of e
xpre
ssio
n
95
aA
-41.
(TA
SK
ST
AT
EM
EN
T)
111-
12 R
EM
OV
E A
ND
RE
PLA
CE
DE
FRO
ST T
ER
MIN
AT
OR
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
S1
KW
inng
Dia
gram
Loca
te d
efro
st te
rmin
ator
in c
oolin
g co
il se
ctio
nR
emm
e de
lros
term
inat
orIn
stal
l no%
def
rost
tert
nina
tor
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
c./H
eal s
hock
. ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
U E
SE
RR
OR
S
Det
erm
ine
defr
ost t
erm
inat
or d
efec
the
Def
rost
term
inat
or h
as o
pen
circ
uit
Sel
ect r
epla
cem
ent a
ccor
ding
to m
odel
and
ser
ial n
umbe
rC
heck
cut
out
tem
p on
new
term
inat
or
Fai
lure
to m
ake
corr
ect r
epla
cem
ent w
ill r
esul
t in
a lo
nger
or s
hort
ed d
efro
st c
ycle
(TA
SK
ST
AT
EM
EN
T)
111-
12 R
EM
OV
E A
ND
RE
PLA
CE
DE
FR
OS
TT
ER
MIN
AT
OR
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
enal
s[lo
t met
al]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
pro,
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to1h
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
of N
umbe
rs: (
with
out c
aluc
latio
n)C
odin
g- -
[mfg
. dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sR
epre
sent
atio
nal g
raph
s
CO
MM
UN
ICA
TIO
NS
-P
ER
FO
RM
AN
CE
MO
DE
S...
..--
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls, c
odes
em
blem
s
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
i4.,-
7,
97
(TA
SK
ST
AT
EM
EN
T)
111-
13 R
EM
OV
E A
ND
RE
PLA
CE
RE
LA
Y
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KW
iring
Dia
gram
Loca
te r
elay
Rem
me
rela
yIn
stal
l rel
ayle
st a
nd c
heck
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
. ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
.
DE
CIS
ION
SC
UE
S
.
ER
RO
RS
Det
erm
ine
rela
mop
erat
neS
elec
t rel
ay r
ated
to H
P o
f com
pres
sor
Re
la h
as o
pen
circ
uit
Com
pres
sor
star
ts a
nd s
tops
-
Fai
lure
to in
stal
l cor
rect
sip
: rel
ay w
ould
ren
der
unit
inop
erat
ive
(TA
SK
ST
AT
EM
EN
T)
111-
13R
EM
OV
E A
ND
RE
PLA
CE
RE
LAY
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[B
i met
al]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
,an
d
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
dw
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
ban
d pr
ide
in w
ork.
Em
phas
is s
houl
d he
pla
ced
upon
per
form
ing
the
task
at h
and
with
out
unne
cess
arily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rnfo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
nsw
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
ssh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
edin
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Us:
01
Num
bers
: (\ii
thou
t cal
ucla
tion)
Cod
ing-
--[m
ug. d
ata
plat
e]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic M
easu
rem
ent S
kills
and
Com
.epi
sR
eadi
ng a
nd in
terp
retin
g ta
bles
. cha
rts,
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls. c
odes
em
blem
s
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
99le
i
(TA
SK
ST
AT
EM
EN
T)
111-
14 R
EM
OV
E A
ND
RE
PLA
CE
FA
N M
OT
OR
S
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
. RS
AF
ET
Y -
HA
ZAtD
ST
KW
iring
Dia
gram
Loca
te m
otor
Rem
ove
mot
orR
epla
ce m
otor
Tes
t and
che
ck
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Fai
lure
to r
epla
ce w
ith m
otor
des
igne
d w
ill r
esul
t in
inef
ficie
nt u
nit o
pera
tion
Det
erm
ine
mot
or in
oper
atis
eS
elec
t mot
or d
esig
ned
for
appl
icat
ion
Mot
or s
hort
edM
otor
has
ope
n ci
rcui
tM
otor
has
def
ectiv
e be
arin
gs
(TA
SK
ST
AT
EM
EN
T)
111-
14R
EM
OV
E A
ND
RE
PLA
CE
FA
N M
OT
OR
S
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]M
agne
tic fi
elds
of f
orce
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rtp
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
a..g
.:men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
p:r
forn
ied
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt c
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
of N
umbe
rs: (
with
out c
aluc
latio
n)C
odin
g [r
ag d
ata
plat
e)F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
t:: M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
retin
g ta
bles
. cha
rts,
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
-
Writ
ing
..
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am.
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
a..
;sis
Re,
of s
ymbo
ls, c
odes
em
blem
s
Info
rir ..
<I r
epor
tT
erm
y' g
ener
al v
ocab
ular
yC
larit
y..
...xp
ross
ion
101
(TA
SK
ST
AT
EM
EN
T)
111-
15 R
EP
AIR
LE
AK
IN C
OP
PE
R L
INE
SO
F S
YS
TE
M
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
Hiq
AR
D'1
1a
2;
ST
KR
epai
r co
pper
line
with
flar
ed m
echa
nica
l fitt
ing
or w
ithS
afet
y:M
Ga
swed
ge a
nd; o
r br
aced
join
tV
PE
vacu
ate
Pro
per
care
and
use
,' D
ols
Pr
Rec
harg
eV
entil
ate
room
whe
tm
gS
S-
Use
car
e w
hile
torc
h .
pera
uon
SS
-3W
ear
gogg
les
whe
n ha
noi.n
g re
frig
eran
t-
SS
-7S
S-6
Haz
ard:
Per
sona
l inj
ury
coul
d oc
cur
Bur
n of
f irr
itatin
g to
eye
s, n
ose
and
thro
atS
ever
e bu
rns
or p
rope
rty
dam
age
may
occ
urL.
oss
of e
yesi
ght o
r sk
in b
urns
____
.
DE
CIS
ION
SC
UE
S,
ER
RO
RS
Det
erm
ine
so,e
ritof
leak
Oil
slic
k in
are
a of
leak
Fai
lure
tode
term
ine
seve
rity
of
leak
or
mak
e go
od r
epai
rD
eter
min
e ty
pe o
f fi
tting
nee
ded
to c
ompl
ete
task
Lea
k ,ie
tect
or m
etho
ds h
ave
isol
ated
are
a of
leak
wou
ld c
ause
uni
t to
cont
inue
leak
ing
(TA
SK
ST
AT
EM
EN
T)
111-
15 R
EP
AIR
LE
AK
IN C
OP
PE
R L
INE
S O
F S
YS
TE
M
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
,..
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffec
t of
heat
ing
and
cool
ing
on s
tate
of
mat
ter
[bra
zing
]Fl
uids
und
er p
ress
ure
[ref
rige
rant
]R
esis
tanc
e of
mat
eria
ls to
cha
nge
in s
hape
-
[tub
e be
ndin
g. s
wed
ge, f
lare
]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riat
ely
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
har
,u: .
..,tis
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to ..
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
sari
lydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of
cost
s sh
ouia
be
accu
rate
, hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is f
ello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing[
mfg
. dat
a pl
ate]
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[re
frig
eran
t]Pr
oper
ty o
f co
mpa
risi
on[m
easu
ring
in r
efri
gera
nt c
harg
e]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts[
MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nifi
cant
dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/ ln
duct
ive[
dedu
ctiv
e di
agno
sis]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Wri
ting
Vie
win
g
MG
Serv
ice
orde
r
MG
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of
expr
essi
on
Det
ail i
nfer
ence
A%
...le
1 iti
11
103
(TA
SK
ST
AT
EM
EN
T)
111-
16 R
EM
OV
E A
ND
RE
PLA
CE
CO
MP
RE
SS
OR
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
HA
ZI,P
M 4
Si K MG
VP
SS
-l5
or
SS
-I6
.rec
ordi
ng to
mtg
., sp
ecifi
catio
ns
Loca
te c
ompr
esso
r an
d rc
mos
e fr
om m
ount
ing
Inst
all r
epla
:em
ent c
ompr
esso
rf:%
acua
tcR
echa
rge
Tes
t and
che
ck
Saf
ety.
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Ilata
rd
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
com
pres
sor
defe
eme
Sel
ect r
epla
cem
ent c
ompr
esso
r ac
cord
ing
to m
fg's
spec
ifica
tions
and
mod
el a
nd s
eria
l num
ber
Com
pres
sor
shor
ted
Com
pres
sor
has
open
fund
ing
Com
pres
sor
has
mec
hani
cal l
ailu
re
Fai
lure
to in
stal
l pro
per
sire
d co
mpr
esso
r w
ill r
esul
t in
noop
erat
ion
or in
effe
ctiv
e op
erat
ion
of u
nit
(TA
SK
ST
AT
EM
EN
T)
111-
16 R
EM
OV
E A
ND
RE
PLA
CE
CO
MP
RE
SS
OR
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[sol
derin
g]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[hea
t con
duct
ion]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing
-[m
fg d
ata
plat
e]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[re
frig
eran
t]P
rope
rty
of c
ompa
rison
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts-
- [M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.
CO
MM
UN
ICA
TIO
NS
,.....
....
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
105
(TA
SK
ST
AT
EM
EN
T)
111-
17 A
DD
OIL
TO
SY
ST
EM
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
KM
anif
old
& g
auge
sSS
-15
or
SS-l
bW
MR
efri
gera
tion
oil
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
fake
sys
tem
to ta
citu
rn o
n lo
w s
ide
Intr
oduc
e oi
l int
o lo
w s
ide
until
ope
ratin
g w
atta
gehe
com
es n
orm
al o
r co
mpr
esso
r qu
iets
dow
nR
echa
rge
I4S
AF
ET
Y -
HA
ZA
RD
Safe
ty
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d its
c of
han
d to
ols
Hua
rd
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
S
Det
erm
ine
how
muc
h oi
l has
bee
n lo
st f
rom
com
pres
sor
CU
ES
Uni
t run
s ex
cess
ivel
y ho
tU
nit h
as h
igh
wat
t,,le
rea
ding
Uni
t sho
rt c
ycle
s
ER
RO
RS
Too
muc
h or
too
little
oil
will
ren
der
inef
fici
ent o
pera
tion
of u
nit
(TA
SK
ST
AT
EM
EN
T)
III-1
7 A
DD
OIL
TO
SY
ST
EM
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l ath
anta
ge[S
I IC
JE
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Tra
nsfe
r of
hea
t Irm
a on
e bo
dy to
ano
ther
[hea
t)
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
des
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pr'f
essi
onal
ism
.
Rat
iona
l Num
bers
-
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion;
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
prot
ion
[ref
riger
ant]
Pro
pert
y of
com
paris
on[m
easu
ring)
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s N
G. W
M)
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.
,
.
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
L M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Writ
ing
Vie
win
g
Dat
a pl
ate
MG
WM
Ser
vice
ord
er
MG
WM
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
Det
ail i
nfer
ence
107
(TA
SK
ST
AT
EM
EN
T)
111-
18 R
EM
OV
E R
EST
RIC
TIO
N F
RO
M C
API
LL
AR
Y T
UB
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
HA
ZA
RD
sTK
MG
VP
SS
-I2
SS
-I5
o: S
S-1
7
Rem
ove
high
sid
e en
d of
cap
illar
y tu
beF
lush
and
bac
k flu
sh R
-22
or n
itrog
enIn
stal
l driv
eE
vacu
ate
Rec
harg
e
'Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
;ger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
S. C
UE
S
Gau
ges
read
rno
dera
t.: r
estr
ictio
n
ER
RO
RS
No
refr
iger
ant p
asse
s th
roug
h tu
beD
eter
min
e if
capi
llary
tube
is o
pera
tic
(TA
SK
ST
AT
EM
EN
T)
111-
18 R
EM
OV
E R
ES
TR
ICT
ION
FR
OM
CA
PIL
LAR
Y T
UB
E
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l ath
anta
ge[S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[Sol
derin
g-re
frig
eran
t]F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
pre
ssur
e]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[hea
t con
duct
ion]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[ref
riger
ant]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
nev:
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
-[re
trig
eran
t]P
rope
rty
of c
ompa
rison
- -[
tnea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
-[M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
i 0e
109
(TA
SK
ST
AT
EM
EN
T)
111-
19 R
EM
OV
E A
ND
RE
PLA
CE
CA
PIL
LA
RY
TU
BE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
-
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
V a
)
SA
FE
TY
HA
ZA
RD
ST
KM
GV
P
asim
mm
omm
omm
Rem
ove
capi
llary
tube
Inst
all r
epla
cem
ent
Eva
cuat
eR
echa
rge
'Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if c
apill
ary
tube
is in
oper
ativ
eE
vapo
rato
r pr
essu
res
refle
ct a
res
tric
tion
Sel
ect c
orre
ct c
apill
ary
tube
acc
ordi
ng to
com
pres
sor
Cap
illar
y tu
be p
lugg
edca
paci
ty, a
nd c
onde
nser
des
ign
-
Fai
lure
to in
stal
l cor
rect
cap
illar
y tu
be w
ould
res
ult i
n hi
gher
or lo
wer
eva
pora
tor
tem
pera
ture
.
(TA
SK
ST
AT
EM
EN
T)
111-
19 R
EM
OV
E A
ND
RE
PLA
CE
CA
PIL
LA
RY
TU
BE
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
ndin
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
dpr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
ejob
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
rH
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m
Rat
iona
l Num
bers
Use
s of
Num
bers
: 0.1
.itho
ut c
alcu
latio
n)co
ding
linlg
dat
a pl
ate)
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion-
[ref
riger
ant)
Pro
pert
of c
ompa
risio
n- [m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s- [M
G]
inst
rum
ents
Giv
en a
n In
t.tru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.
...
CO
MM
UN
'CA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
.A
e1
1 I
(TA
SK
ST
AT
EM
EN
T)
111-
20 R
EM
OV
E A
ND
RE
PLA
CE
AU
TO
MA
TIC
EX
PA
NS
ION
VA
LVE
r-9e
-k4-
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
STK
MG
TT SS
-15
or
SS -
16 a
ccor
ding
to r
ag s
peci
fica
tions
Inst
all m
anif
old
and
gaug
esIs
olat
e au
tom
atic
exp
ansi
on v
alve
trom
sys
tem
Rem
ove
auto
mat
ic e
xpan
sion
val
eR
epla
ce w
ith n
ew a
utom
atic
exp
ansi
on v
alve
Purg
e an
d ad
d re
frig
eran
t to
syst
emA
djus
t to
cool
ing
coil
tem
pera
ture
Safe
ty
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf o
r ot
hers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if a
utom
atic
exp
ansi
on v
alve
is in
oper
ativ
eSe
lect
pro
per
auto
mat
ic e
xpan
sion
val
ve a
ccor
ding
to u
nit d
esig
n
.
AX
V o
pera
tes
erra
ticA
XV
inte
rnal
viik
e de
fect
ive
.
Failu
re to
do
so w
ill r
esul
t in
syst
em n
otfu
nctio
ning
pro
perl
y
li
(TA
SK
ST
AT
EM
EN
T)
111-
20 R
EM
OV
E A
ND
RE
PLA
CE
AU
TO
MA
TIC
EX
PA
NS
ION
VA
LVE
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
esH
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cual
tion)
codi
ng{m
fg d
ata
plat
e)F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts'
Rat
io a
nd p
ropo
rtio
n{re
frig
eran
t]P
rope
rty
of c
ompa
rison
.{m
easu
ringl
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sMG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Writ
ing
Vie
win
g
MG
TI
Ser
vice
ord
er
MG
IT
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
Det
ail i
nfer
ence
...
113
(TA
SK
ST
AT
EM
EN
T)
111-
21 R
EM
OV
E A
ND
RE
PLA
CE
TH
ER
MO
ST
AT
IC E
XP
AN
SIO
N V
ALV
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
.
SA
FE
TY
- H
AZ
App
,-*
<.;,
"
ST
KM
GS
S -
15 o
r S
S -
16 a
ccor
ding
to r
ules
spe
cific
atio
ns
Inst
all m
anifo
ld a
nd g
auge
Isol
ate
ther
mos
tatic
exp
ansi
on v
alve
from
sys
tem
Rem
ove
ther
mos
tatic
exp
ansi
on v
alve
Inst
all r
epla
cem
ent t
herm
osta
tic e
xpan
sion
val
veA
dd a
dditi
onal
cha
rge
to s
yste
mA
djus
t sup
er h
eat
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
..
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if th
erm
osta
tic e
xpan
sion
val
ve is
inop
erat
ive
Sel
ect c
orre
ct th
erm
osta
tic e
xpan
sion
valv
e ac
cord
ing
to u
nit d
esig
n
Coo
ling
coil
tem
pera
ture
err
atic
Sen
sor
has
lost
its
char
ge.
Inte
rnal
val
ve s
ticki
ng
Fai
lure
to in
stal
l cor
rect
val
ve w
ould
res
ult i
n im
prop
erev
apor
ator
tem
pera
ture
(TA
SK
ST
AT
EM
EN
T)
111-
21R
EM
OV
E A
ND
RE
PLA
CE
TH
ER
MO
STA
TIC
EX
PAN
SIO
N V
AL
VE
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
-1 K
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[ r
efrig
eran
t und
er p
ress
ure]
'Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[h
eat t
rans
fer
evap
orat
or to
con
dens
er]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shat
i:d m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g Lt
.rro
uncl
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
IxQ
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
. nil
enta
ngle
men
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d ci
iscu
sio
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
annt
,H
e sh
ould
get
al -
--i;
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h m
nei.
,:rof
essi
onal
ism
.
Rat
iona
l Num
bers
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion-
-[re
frig
eran
t]P
rope
rty
of c
ompa
rison
--
[mea
surin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
-[M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tise
I ndu
cti%
e[D
D]
,.....
.... -
-
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
(TA
SK
ST
AT
EM
EN
T)
III-2
2 IN
ST
ALL
A D
RIE
R, S
IGH
T G
LAS
S O
R M
OIS
TU
RE
IND
ICA
TO
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
GS
S-I
5 or
SS
-I6
acco
rdin
g to
mfg
's s
peci
ficat
ions
Isol
ate
area
whe
re c
ompo
nent
is to
be
inst
alle
dIn
stal
l com
pone
ntP
urge
com
pone
ntR
echa
rge
Che
ck s
yste
m p
ress
ures
'Saf
ety
Alw
ays
wea
r go
ggle
s an
d tis
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
S
Det
erm
ine
whe
re c
ompo
nent
to b
e in
stal
led
Che
ck m
fg. s
peci
ficat
ions
CU
ES
Sys
tem
req
uire
s co
mpo
nent
Exc
essi
'.e m
ositu
re in
sys
tem
Ext
ensm
e se
rvic
e pe
rfor
med
on
unit
ER
RO
RS
Fai
lure
to fo
llow
pro
cedu
res
will
res
ult i
n co
mpo
nent
s no
tpe
rfor
min
g ad
equa
tely
(TA
SK
ST
AT
EM
EN
T)
111-
22 IN
ST
ALL
A D
RIE
R, S
IGH
T G
LAS
S O
R M
OIS
TU
RE
IND
ICA
TO
R.1
11.1
.111
M.
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd In
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing
[mfg
dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
i; , ;
,, n
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[r
efrig
eran
t]P
rope
rty
of c
ompa
rison
- ['I
lea:
tirin
g]B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts-
-[M
r11
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
EX
AM
PLE
S
117
SK
I LLS
/CO
NC
EP
TS
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
III-
23 R
EM
OV
E A
ND
RE
PLA
CE
HIG
H O
R L
OW
PR
ESS
UR
E(T
AS
K S
TA
TE
ME
NT
)SA
FET
Y C
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
I .
il4
Ira
SA
FE
TY
- H
AZ
AR
D
ST
K .
MG
Inst
all m
anifo
ld a
nd g
auge
sR
emov
e co
ntro
lIn
stal
l new
con
trol
Wire
con
trol
Adj
ust c
ontr
ol
Saf
ety:
Use
car
e in
han
dlin
g of
ref
riger
ants
Dis
conn
ect p
ower
bef
ore
repl
acin
g co
ntro
l.
Hat
ard:
May
cau
se e
ye in
jury
or
skin
bur
nM
ay c
ause
ser
vice
ele
ctric
al s
uppl
y
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
cont
rol i
nope
rativ
eC
anno
t adj
ust l
ow c
ut-o
utS
elec
t con
trol
acc
ordi
ng to
uni
t des
ign
Can
not a
djus
t hig
h cu
t-ou
t
..
Impr
oper
uni
t ope
ratio
n w
ill o
ccur
.
III-
23 R
EM
OV
E A
ND
RE
PLA
CE
HIG
H O
R L
OW
PR
ESS
UR
E(T
AS
K S
TA
TE
ME
NT
) S
AF
ET
Y C
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]M
aids
und
er p
ress
ure
[ref
riger
ant u
nder
pre
ssur
e in
bel
low
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[e
ffect
of e
xpan
sion
in b
ello
ws]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch n
late
s to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
r :a
ch o
ther
s pr
ofes
sion
alis
m.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
-- [r
efrig
eran
t]P
rope
rty
of c
ompa
rison
--[m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s--[
MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
yw
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e In
duct
ive
[D13
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y /g
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
119
111-
24 R
EM
OV
E A
ND
RE
PLA
CE
HIG
H O
R L
OW
PR
ESS
UR
E M
OT
OR
(TA
SK S
TA
TE
ME
NT
) C
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
GIn
stal
l man
ifold
and
gau
ges
Rem
ove
cont
rol
Inst
all n
ew c
ontr
olW
ire c
ontr
olA
djus
t and
cal
ibra
te c
ontr
ol
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
cont
rol i
nope
rativ
eS
elec
t con
trol
acc
ordi
ng to
uni
t des
ign
Con
trol
can
not b
e ad
just
ed o
r ca
libra
ted
with
acc
urac
yC
ontr
ol h
as o
pen
circ
uit
Inco
rrec
t con
trol
will
res
ult i
n im
prop
er c
yclin
g
III-
24 R
EM
OV
E A
ND
RE
PLA
CE
HIG
H O
R L
OW
PR
ESS
UR
EM
OT
OR
(TA
SK
ST
AT
EM
EN
T)
CO
NT
RO
L
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
pre
ssur
e in
bel
low
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
l.[e
ffect
of e
xpan
sion
in b
ello
ws]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
san
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
--[r
efrig
eran
t]P
rope
rty
of c
ompa
rison
--[m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s--[
MG
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e, In
duct
ive
[DD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
121
(TA
SK
ST
AT
EM
EN
T)
111-
25 R
EM
OV
E A
ND
RE
PLA
CE
OIL
PR
ESS
UR
E S
AFE
TY
CO
NT
RO
L17
1 "S
I
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KM
GIn
stal
l man
ifold
and
gau
ges
Rem
ove
cont
rol
Inst
all n
ew c
ontr
olA
djus
t and
cal
ibra
te c
ontr
ol
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
S'
ER
RO
RS
Det
erm
ine
cont
rol i
nope
rativ
eS
elec
t rep
lace
men
t acc
ordi
ng to
mfg
spe
cific
atio
nsA
djus
tmen
tv o
r ca
libra
tion
cann
ot b
e m
ade
with
acc
urac
yO
pen
circ
uit
Fai
lure
to in
stal
l cor
rect
con
trol
may
res
ult i
n sy
stem
failu
re
(TA
SK
ST
AT
EM
EN
T)
111-
25 R
EM
OV
E A
ND
RE
PLA
CE
OIL
PR
ES
SU
RE
SA
FE
TY
CO
NT
RO
L
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
luid
s un
der
pres
sure
[ref
riger
ant u
nder
pre
ssur
e in
bel
low
slE
ffect
of h
eatin
g an
d co
oltr
.R o
n ex
pans
ion
of m
ater
ials
[effe
ct o
f exp
ansi
on in
be:
low
...]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
.
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion[
refr
iger
ant]
Pro
pert
y of
com
paris
on [m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s [M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive
Indu
ctiv
e-A
DD
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
1 ni
123
III-
26 R
EM
OV
E A
ND
RE
PLA
CE
HO
T G
AS
DE
FRO
ST(T
ASK
ST
AT
EM
EN
T)
SOL
EN
OID
AN
D V
AL
VE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NM
EV
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
ST
KM
GS
S -
15 o
r S
S-I
6 ac
cord
ing
to m
fg's
spe
cific
atio
n
Inst
all m
anifo
ld a
nd g
auge
sIs
olat
e H
GD
SV
from
sys
tem
Rem
o%e
HG
DS
VR
epla
ce H
GD
SV
Pur
ge a
nd a
dd c
harg
e or
ref
riger
ant t
o sy
stem
leve
l
Saf
ety
Alw
ays
wea
r go
ggle
s an
d us
e ca
re w
hen
hand
ling
refr
iger
ants
Car
e an
d us
e of
han
d to
ols
Haz
ard
Inju
ry to
eye
s or
ski
n bu
rnIn
jury
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
HG
DS
V m
oper
ame
Sel
ect c
orre
ct r
epla
cem
ent a
ccor
ding
to u
nit d
esig
nor
mfg
spe
cific
atio
ns
HG
DS
V s
olen
oid
has
open
circ
uit
Mec
hani
cal o
pera
tion
of v
alve
is e
rrat
icIn
corr
ect r
epla
cem
ent w
ill r
esul
t in
cont
inue
d de
fros
t pro
blem
s
111-
26 R
EM
OV
E A
ND
RE
PLA
CE
HO
T G
AS
DE
FRO
ST(T
ASK
ST
AT
EM
EN
T)
SOL
EN
OID
AN
D V
AL
VE
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
coal
ing-
-[m
fg d
ata
plat
e]F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n---
[ref
riger
ant]
Pro
pert
y of
com
paris
ion-
- [m
easu
ring]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s -
-[M
G]
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
tore
lativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e..
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
MG
MG
Ser
vice
ord
er
Det
ail i
nfer
ence
Det
ail i
nfer
ence
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
125
nrb
(TA
SK
ST
AT
EM
EN
T)
III-
27 R
EPA
IR E
VA
POR
AT
OR
WIT
H E
PDX
Y
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
,.
SA
FE
TY
- H
AZ
AR
D
ST
KE
poxy
pat
ch k
itH
eat L
amp
MG
DC
SS
-15
or
SS
-I6
acco
rdin
g to
rnI
g's
spec
ifica
tion%
Cle
an a
rea
App
ly e
poxy
Blo
w to
dry
Eva
cuat
eR
echa
rge
Saf
ety:
Car
e w
hile
usi
ng e
poxy
pat
chU
se g
oggl
es w
hile
han
dlin
g re
frig
eran
ts
Haz
ard:
Irrit
ates
ski
nE
ye in
jury
or
skin
bur
n
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
sue
and
area
of p
unct
ure
Loca
te p
unct
ure
in e
vapo
rato
rF
ailu
re to
cov
er e
ntire
are
a w
ith e
poxy
will
ren
der
job
unsu
cces
sful
I.
_
(TA
SIK
ST
AT
EM
EN
T)
111-
27 R
EP
AIR
EV
AP
OR
AT
OR
WIT
H E
PD
XY
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
lsE
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter.
[ref
riger
ant]
Flu
ids
unde
r pr
essu
re[r
efrig
eran
t und
er p
ress
ure]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[H
eat t
rans
fer
evap
orat
or to
con
dens
er]
Rel
at;a
nshi
p of
forc
e to
dis
tort
ion
in a
n el
astic
bod
y[e
poxy
]
Rat
iona
l Num
bers
Use
s of
Num
bers
. (w
ithou
t cal
cula
tion)
Cod
ing-
-[m
fg D
ata
Pla
te]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
ion
-- [r
efrig
eran
t)P
rope
rty
of c
ompa
rison
--[m
easu
re]
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s--[
MG
. DC
]In
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ct to
rela
tive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
CO
MM
UN
!CA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Writ
ing
Vie
win
g
MG
DC
Ser
vice
ord
er
MG
DC
Det
ail i
nfer
ence
1
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
Det
ail i
nfer
ence
ii -1
5
127
(TA
SK
ST
AT
EM
EN
T)
1112
8 R
EM
OV
E A
ND
RE
PLA
CE
CO
ND
EN
SAT
ION
PU
MP
MO
TO
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
DuP
owP
ER
FO
RM
AN
CE
KN
OW
LED
GE
.....g
SA
FE
TY
- H
AZ
AR
D
ST
KW
inng
Dia
gram
Loca
te p
ump
Rem
ove
pum
pR
epla
ce p
ump
Tes
t flo
at
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
pum
p de
sign
as
a re
plac
emen
tF
loat
arm
stic
ks fr
om c
orro
sion
Pum
p m
otor
has
ope
n ci
rcui
tP
ump
mot
or s
hort
ed
Impr
oper
floa
t adj
ustm
ent c
an r
esul
t in
cond
ensa
te p
anov
erflo
win
g w
ith w
ater
(TA
SK
ST
AT
EM
EN
T)
111-
28 R
EM
OV
E A
ND
RE
PLA
CE
CO
ND
EN
SAT
ION
PUM
P M
OT
OR
SC
IEN
CE
Sim
ple
mac
hine
s us
ed to
gai
n m
ccah
nica
l adv
anta
ge[S
TK
]R
esis
tanc
e of
mat
eria
ls to
now
of
.cal
cur
rent
[sto
ck p
oten
tial o
f cur
rent
]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
o:e
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
wis
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
Egr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
inw
r:k.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
t:viti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
li4m
.
MA
TH
- N
UM
BE
R S
YS
TE
MS
Rat
iona
l Num
bers
Use
of N
umbe
rs: (
with
out c
aluc
latio
n)C
odin
g---
[mfg
, dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Mea
sure
men
t Ski
lls a
.d C
once
pts
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s. a
nd g
raph
sR
epre
sent
atio
nal g
raph
s
CO
NIM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
Se,
vice
ord
er
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls, c
odes
em
blem
s
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
flP7
129
gie
.S11
11/.1
1
(TA
SK
ST
AT
EM
EN
T)
111-
29R
EM
OV
E A
ND
RE
PLA
CE
HU
MID
IST
AT
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
......
..__,
SA
FE
TY
- H
AZ
AR
D-
Si K
Wir
ing
Dia
gram
Rem
ove
cont
rol
Rep
lace
new
con
trol
Adj
ust
Tes
t
Safe
ty:
Alw
ays
disc
onne
ct c
ircu
it an
d lo
ck o
ut b
reak
er b
efor
ew
orki
ng o
n el
ectr
ical
com
pone
nts
Car
e in
use
of
hand
tool
s
Haz
ard:
Ele
ctri
cal s
hock
, ele
ctri
cal b
urn
Inju
ry to
one
self
or
othe
rs
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
cont
rol i
nope
rativ
eD
eter
min
e re
plac
emen
t con
trol
acc
ordi
ng to
mfg
. spe
cifi
catio
nT
rigg
erin
g m
echa
nism
dis
tort
edO
pen
circ
uit
Failu
re to
adj
ust c
ontr
ol
Failu
re to
rep
lace
and
adj
ust c
ontr
ol w
ill r
esul
t in
poor
clim
ate
cond
ition
s
(TA
SK
ST
AT
EM
EN
T)
F.-
29 R
EM
OV
E A
ND
RE
PLA
CE
HU
MID
IST
AT
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
][E
ffect
of m
oi ir
e on
the
Hyp
osco
pic
elem
ent]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
nese
r po
ssib
le.
He
shou
ld c
onsu
lt ap
prop
riate
ly w
hen
diffi
culty
wis
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
Use
of N
umbe
rs: (
with
out c
aluc
latio
n)C
odin
g[m
fg d
ata
plat
e]F
unda
men
tal O
pera
tion:
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Rep
rese
ntat
iona
l gra
phs
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Wiri
ng d
iagr
am
Com
pone
nts
Wiri
ng d
iagr
am
Ser
vice
ord
er
EX
AM
PLE
SS
KI L
LS /C
ON
CE
PT
S
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Rec
ogni
tion
of s
ymbo
ls. c
odes
em
blem
s
Info
rmat
iona
l rep
ort
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of e
xpre
ssio
n
131
(TA
SK
ST
AT
EM
EN
T)
III-
30 B
AL
AN
CIN
G T
HE
AIR
CO
ND
ITIO
NIN
G S
YST
EM
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
ST
KT
herm
omet
er
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
Mea
sure
tem
pera
ture
s at
sup
ply
and
retu
rn d
uct
Adj
ust f
an s
peed
Adj
ust f
an c
ut-in
and
cut
-out
and
hig
h lim
it sw
itche
sA
djus
t sup
ply
regi
ster
s an
d da
mpe
rs
1 A
il
DE
CIS
ION
SC
UE
S
Det
erm
ine
if ai
r di
strib
utio
n is
ade
quat
eD
eter
min
e pr
oper
con
trol
adj
ustm
ents
acc
ordi
ng to
mfg
s.
SA
FE
TY
- H
AZ
AR
D
I.
Saf
ety-
Obs
erve
pro
per
use
of h
and
tool
s an
d te
st e
quip
men
t
Cou
ld c
ause
per
sona
l inj
ury
to o
nese
lf or
oth
ers
ER
RO
RS
Inad
equa
te h
eatin
g or
coo
ling
com
fort
inF
ailu
re to
isol
ate
whe
re a
ir di
stnb
utio
n is
cau
sing
cus
tom
er d
is-
cert
ain
area
sco
mfo
rt a
nd m
ake
accu
rate
adj
ustm
ents
wou
ld r
esul
t in
cust
ome
Hum
idity
too
high
diss
atis
fact
ion
(TA
SK
ST
AT
EM
EN
T)
111-
30 B
ALA
NC
ING
TH
E A
IR C
ON
DIT
ION
ING
SY
ST
EM
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Ildes
truc
tibili
ty o
f ene
rgy
and
mat
ter.
'ST
KI
Wor
k in
put,
wor
k ou
tput
, fric
tion
and
effic
ienc
y in
sim
ple
mac
hine
s[B
low
er]
Cen
trifu
gal f
orce
s de
velo
ped
by b
odie
s in
rot
atio
n. [B
low
er]
Beh
avio
ral S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
leH
e sh
ould
con
sult
appr
opria
tely
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m
----
---
Rat
iona
l Num
bers
Use
of n
umbe
rs w
ithou
t cal
cula
tion
codi
ng [m
fg. d
ata
plat
e]F
unda
men
tal o
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Bas
ic m
easu
rem
ent s
kills
and
con
cept
sIn
stru
men
ts [t
herm
omet
er)
Mea
sure
men
t (no
n-ge
omet
ric)
Wei
ght
Tem
pera
ture
Bas
ic g
eom
etry
ski
lls a
nd c
once
pts
Geo
met
ric r
elat
ions
hips
[duc
ts]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
L:,
''IN
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emet
icV
OM
-Con
tinui
ty
Com
pone
nts/
Wiri
ng d
iagr
am
Ser
vice
ord
er
Ter
min
olog
yW
iring
dia
gram
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
133
litl
Duty IV Installing Warm Air Heating Systems
I Install furnace gasoil--electric
/ 0.
135
(TA
SK
ST
AT
EM
EN
T)
IV1
INST
AL
L F
UR
NA
CE
GA
S-O
IL-E
LE
CT
RIC
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
NA
ZA
R i
jIL
- s
STK
Posi
tion
furn
ace
Do
not l
ift l
oads
fro
m a
ben
ding
pos
ition
. Alw
ays
lift
SS-I
-5-6
-7-8
-9In
stal
l blo
wer
pac
kage
from
a s
quat
ting
posi
tion
with
bac
k st
raig
ht25
-26
Inst
all d
uct w
ork
Gro
und
pow
er e
quip
men
t and
use
with
car
eIn
stal
l plu
mbi
ngC
are
in th
e us
e of
han
d to
ols
Win
: fur
nace
Car
e in
wor
king
with
gas
, oil,
ele
ctri
c po
wer
Che
ck o
pera
tion
Pote
ntia
l bac
k in
jury
or
rupt
ure
Ele
ctri
cal s
hock
or
pers
onal
inju
ryIn
jury
to o
nese
lf o
r ot
hers
Exp
losi
on o
r fi
re
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
loca
tion
for
furn
ace
Surv
ey p
rem
ises
for
pro
per
fuel
sup
ply,
pow
er s
uppl
y an
dIn
adeq
uate
util
ities
or
impr
oper
pos
ition
ing
or a
dequ
ate
size
Posi
tion
furn
ace
for
acce
ssib
ility
prop
er s
ize
unit
to c
him
ney
and
duct
wor
kun
it w
ould
res
ult i
n fa
ulty
inst
alla
tion
1.
(TA
SK
ST
AT
EM
EN
T)
IV -
1 IN
ST
ALL
FU
RN
AC
E G
AS
-OIL
-ELE
CT
RIC
SC
IEN
CE
aaIM
MIA
M .1
4 ge
l PM
igIM
IY s
roxa
s.i..
...u.
../...
**.o
.
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [
STK
]W
ork
inpu
t, w
ork
outp
ut f
rict
ion
and
effi
cien
cy. [
V b
elt d
rive
on
blow
er]
Eff
ect o
f he
atin
g co
olin
g on
exp
ansi
on o
fm
ater
ials
[bi
met
al]
Cen
trif
ugal
tort
es d
evel
oped
by
bodi
es in
rot
atio
n [B
low
er b
lade
]
Beh
avio
ral S
cien
ce.
Tec
hnic
ian
shou
ld ta
lk o
nly
shou
t the
rep
air
Joh
and
in a
kno
vtle
dgea
hle
way
, and
prom
ote
his
entp
loye
r w
hene
er p
ossi
hle.
He
shou
ld c
onsu
lt ap
prop
riat
ely
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
wht
eh r
elat
es to
the
repa
ir J
oh a
t han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
hal
ance
bet
wee
n pr
essu
re to
com
plet
e ]M
, and
pri
de in
wor
kE
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
sari
lydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
or
the
prem
ises
.H
e sh
ould
be
caut
ione
d tt.
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
ddi
scus
sion
of
cost
s sh
ould
he
accu
rate
, hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is te
llovt
em
ploy
ee a
nd d
eelo
p a
rela
tions
hip
that
will
not
hurt
eac
h ot
hers
rof
essi
onal
ism
Rat
iona
lsFr
actio
ns
Use
of
Num
bers
: (w
ithou
t cal
cula
tion)
[eye
balli
ng f
loor
are
alO
rder
ing-
-[S.
T.K
.]C
odin
g--[
mfg
. dat
a pl
ate]
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
oncz
ptsR
ule
of th
umb
[app
roxi
mat
ion]
Bas
ic G
eom
etry
Ski
lls a
nd C
once
pts
Kno
wle
dge
of g
eom
etri
c re
latio
nshi
psSy
mm
etry
[cen
ter
poin
t]D
eter
min
atio
n of
are
a, p
erim
eter
and
dia
gona
ls o
f po
lygo
ns w
ith m
ore
than
4 s
ides
.B
asic
Ant
hmet
ic S
kills
and
Con
cept
sPro
pert
y of
com
pari
son
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts{t
ape)
Mea
sure
men
t: G
eom
etric
Lin
ear
Are
aR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
{cap
acity
cha
rt]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Spea
king
Wri
ting
Inst
ruct
ions
Surv
ey p
rem
ises
Giv
e in
stru
ctio
ns
Serv
ice
orde
r
Proc
ess
repo
rt
Vis
ual a
naly
sis
Ter
min
olog
y/ge
nera
l voc
abul
ary
Cla
rity
of
expr
essi
on.
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
lari
ty o
f ex
pres
sion
14.4
137
Duty V Troubleshooting Warm Air Heating Systems
1 Check oil supply2 Check oil pump3 Check ignition system4 Check heat exchanger5 Check pilotband thermocouple assembly6 Check wall thermostat7 Check gas valve assembly8 Check and adjust fan control9 Check and adjust limit control
10 Check and adjust oil burner11 Check natural gas manifold pressure
1L139
(TA
SK
ST
AT
EM
EN
T)
V-1
CH
EC
K O
IL S
UPP
LY
A',
A ir
4-1.
1C
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KV
GC
heck
sto
rage
tank
Che
ck fi
lter
Che
ck n
ozzl
eC
heck
suc
tion
line
on p
ump
Che
ck p
ump
Che
ck ig
nitio
n co
mpo
nent
s
Saf
ety
Pro
per
care
and
use
of h
and
tool
s
Haz
ard
Inju
ries
to o
nese
lf or
oth
ers
..
DE
CIS
ION
SC
UE
SE
RR
OR
S..
Det
erm
ine
if oi
l is
bein
g su
pplie
d to
cha
mbe
rN
o he
atU
nit r
uns
but c
ycle
s on
saf
ety
Fai
lure
to lo
cate
lack
of o
il su
pply
cou
ld r
esul
t in
unne
cess
ary
time
on th
e jo
b.
(TA
SK
ST
AT
EM
EN
T)V
-1 C
HE
CK
OIL
SU
PPL
Y
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
ST
KO
il su
pply
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
[Bim
etal
)F
luid
s un
der
pres
sure
[OM
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
-
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
o.-n
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Spe
akin
g
Writ
ing
Inst
ruct
ions
Sur
vey
prem
ises
Ver
bal i
nstr
uctio
ns
Ser
vice
ord
er
Pro
cess
rep
ort
Vis
ual a
naly
sis
Ter
min
olog
y/G
ener
al V
ocab
ular
yC
larit
y of
exp
ress
ion
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
141
(TA
SK
ST
AT
EM
EN
T)
V -
2C
HE
CK
OIL
PU
MP
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
1 1.
RS
AF
ET
Y -
HA
ZA
RD
STK
Vac
uum
gau
geL
ocat
e pu
mp
Hoo
k up
vac
uum
gau
geD
eter
min
e pr
oper
pum
p
Prop
er c
are
and
use
of h
and
tool
s
Haz
ard
Inju
ries
to o
nese
lf o
r ot
hers
A
DE
CIS
ION
S
Det
erm
ine
type
of
pum
p an
d po
ssib
ility
of c
ompo
nent
fai
lure
No
heat
No
oil i
n ch
ambe
rU
nit c
ycle
s on
saf
ety
CU
ES
ER
RO
RS
Failu
re to
mak
e pr
oper
dia
gnos
isw
ould
res
ult i
n re
plac
hls
pum
pw
ithou
t cau
se
(TA
SK
ST
AT
EM
EN
T)
V-2
CH
EC
K O
IL P
UM
P
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
ST
KO
il su
pply
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
[Bim
etal
]F
luid
s un
der
pres
sure
[Oil)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
ana
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
kE
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
CO
MM
UN
ICA
TIO
NS
Rea
ding
Vie
win
g
Spe
akin
g
Writ
ing
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
S
Inst
ruct
ions
Sur
vey
prem
ises
Ver
bal i
nstr
uctio
ns
Ser
vice
ord
er
SK
ILLS
/CO
NC
EP
TS
Pro
cess
rep
ort
Vis
ual a
naly
sis
Ter
min
olog
y/G
ener
al V
ocab
ular
yC
larit
y of
exp
ress
ion
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
143
(TA
SK
ST
AT
EM
EN
T)
V-3
CH
EC
K I
GN
ITIO
N S
YST
EM
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
ST
KV
OM
4011
1111
1111
111A
DE
CIS
ION
S
Det
erm
ine
shat
ele
ctric
al c
ompo
nent
is d
efec
t's: o
r m
a ne
ed a
djus
tmen
t
Che
ck p
ower
sup
ply
to u
nit
Che
ck ig
nitio
n tr
ansf
orm
erC
heck
ele
ctro
des
Che
ck c
ad c
ell
Cle
an a
nd a
djus
tC
heck
ope
ratio
n
No
heat
CU
ES
SA
FE
TY
- H
AZ
AR
D
Pro
per
care
and
use
of h
and
tool
sU
se c
are
in c
heck
of p
ower
sup
ply
Haz
ard
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
ER
RO
RS
Fai
lure
to m
ake
corr
ect d
iagn
osis
wou
ld r
esul
t in
impr
oper
rep
air
Li
(TA
SK
ST
AT
EM
EN
T)
V-3
CH
EC
K I
GN
ITIO
N S
YST
EM
-1
SC
IEN
CE
MA
TH
NU
MB
ER
SY
sTE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
[Bim
etal
)F
luid
s un
der
pres
sure
(O
il)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
s.ab
out t
he r
epai
r jo
b an
d in
a k
now
ledg
eabl
e w
ay, a
ndpr
omot
e hi
s em
ploy
er w
hene
ver
poss
ible
.H
e sh
ould
con
sult
with
sup
erio
rs w
hen
diffi
culty
aris
es.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gont
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
^ "4
tole
ranc
e.B
asic
Log
icD
educ
tive/
Indu
ctiv
e
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Sch
emat
ic V
OM
con
tinui
ty
Com
pone
ntsW
iring
dia
gram
Ser
vice
ord
er
Ter
min
olog
yD
etai
l inf
eren
ceV
isua
l ana
lysi
s
Logi
cR
ecog
nitio
n of
sym
bols
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
1 C
I14
5
(TA
SK
ST
AT
EM
EN
T)
V-4
CIE
CK
FiE
AT
WH
AN
GE
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
MIC
ZN
II11/
41,1
1111
11P
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
ST
KL
ocat
e he
at e
xcha
nger
Insp
ect h
eat e
xcha
nger
Tes
t hea
t exc
hang
er
Safe
ty
Prop
er c
are
and
use
of h
and
tool
s
Haz
ard
Inju
ries
to o
nese
lf o
r ot
hers
DE
CIS
ION
SC
UE
S
Det
erm
ine
that
pro
blem
e::i
sts
in h
eat e
xcha
nger
Cus
tom
er c
ompl
ains
of s
mel
ling
fum
es
ER
RO
RS
Fai
lute
to d
eter
min
e th
at h
eat e
xcha
nger
is d
efec
tive
coul
d re
sult
in s
erio
us in
jury
or
poss
ible
dea
th to
the
occu
pant
s.
(TA
SK
ST
AT
EM
EN
T)
V-4
CH
EC
K H
EA
T E
XC
HA
NG
ER
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]F
orce
s ac
ting
on a
bod
y im
mer
sed
or fl
oatin
g in
a li
quid
[Lev
el]
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shoi
lld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
en
^f-
only
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avoi
ded.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
lsF
ract
ions
Use
of N
umbe
rs: (
with
out c
alcu
latio
n)[e
yeba
lling
floo
r ar
ea]
Ord
erin
g--[
S.T
.K.]
Cod
ing
{mfg
. dat
a pl
ate]
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sRul
e of
thum
b[a
ppro
xim
atio
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asic
Geo
met
ry S
kills
and
Con
cept
sK
now
ledg
e of
geo
met
ric r
elat
ions
hips
Sym
met
ry[c
ente
r po
int]
Det
erm
inat
ion
of a
rea,
per
imet
er a
nd d
iago
nals
of p
olyg
ons
with
mor
e th
an 4
sid
es.
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsP
rope
rty
of c
ompa
rison
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts {
tape
]M
easu
rem
ent:
Geo
met
ricLi
near
Are
aR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs[
capa
city
char
t]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Spe
akin
g
Writ
ing
Inst
ruct
ions
Pos
ition
of m
ount
ing
fram
e
Ver
bal i
nstr
uctio
ns
Ser
vice
ord
er
Pro
cess
rep
ort
Vis
ual a
naly
sis
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
147
(TA
SK
ST
AT
EM
EN
T)
V-5
CH
EC
K P
ILO
T A
ND
TH
ER
MO
CO
UPL
E A
SSE
MB
LY
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
KC
heck
pilo
t fla
me
and
adju
stm
ent
Saf
ety
MA
VT
Che
ck th
erm
ocou
ple
Cle
an o
r re
plac
e de
fect
ive
com
pone
nts
and
ther
moc
oupl
e as
sem
bly
Pro
per
care
and
use
of h
and
tool
s
Haz
ard
Inju
ries
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
if pi
lot f
lam
e ou
t of a
djus
tmen
t or
ther
moc
oupl
e is
No
heat
Fai
lure
to c
lean
pilo
t or
repl
ace
poss
ibly
. def
ectiv
e-
ther
moc
oupl
e or
oth
er c
ompo
nent
sD
eter
min
e ty
pe a
nd s
ize
of c
ompo
nent
sin
pilo
t ass
embl
y w
ould
res
ult i
n th
ein
ass
embl
y ac
cord
ing
to m
fg. s
peci
f -at
ions
prob
lem
con
tinui
ngP
arts
cou
ld b
e ch
ange
d un
nece
ssar
ilyor
not
fit p
rope
rly
(TA
SK
ST
AT
EM
EN
T)
V-S
CH
EC
K P
ILO
T A
ND
TH
ER
MO
CO
UPL
E A
SSE
MB
LY
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Eff
ect o
f he
atin
g an
d co
olin
g on
exp
ansi
on o
f m
ater
ials
[Bim
etal
)T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[hea
t on
ther
moc
oupl
e)
Beh
avio
r Sc
ienc
e:
Tec
hnic
ian
shou
lu ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld'c
onsu
lt w
ith s
uper
iors
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
ers
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
j.ib
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
sari
lydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
f ar
gum
ents
with
cus
tom
ers
shot
.:..1
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f co
sts
shou
ld b
e ac
cura
te, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fel
low
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
noil
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
s
Giv
enaI
nstr
umen
tsan
Ins
trum
ent o
f M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fica
nt d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
Indu
ctiv
e
Use
of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Wri
ting
Sche
mat
ic M
AV
T
Com
pone
nts
sche
mat
ic
Serv
ice
orde
r
Ter
min
olog
yW
irin
g di
agra
mD
etai
l inf
eren
ce
Vis
ual a
naly
sis
Log
ic
Info
rmat
iona
l rep
ort
.
Ter
min
olog
yC
lari
ty o
f ex
pres
sion
,...
......
.
149
ti1*
--"it
(TA
SK
ST
AT
EM
EN
T)
V-6
CH
EC
K W
AL
L T
HE
RM
OST
AT
rT
OO
LS, E
QU
IPM
EN
T, M
AT
ER
IALS
,O
BJE
CT
S A
CT
ED
UP
ON
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
ST
KC
heck
cal
ibra
tion
of th
erm
osta
tA
djus
tR
epla
ce if
nec
essa
ryC
heck
ope
ratio
n
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
lock
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
sC
are
in u
se o
f han
d to
ols
Haz
ard:
Ele
ctric
al s
hock
, ele
ctric
al b
urn
Inju
ry to
one
self
or o
ther
s
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
loca
tion
of w
all t
herm
osta
tB
urni
er s
hots
off
on h
igh
limit
Det
erm
ine
type
and
cal
ibra
tion
setti
ng o
fN
o he
atth
erm
osta
t acc
ordi
ng to
mfg
. spe
cific
atio
nsN
ot e
noug
h he
at
Fai
lure
to p
erfo
rm ta
sk p
rope
rly w
ould
res
ult
in fa
ulty
ope
ratio
n of
uni
t
(TA
SK
ST
AT
EM
EN
T)
V-6
CH
EC
K W
AL
L T
HE
RM
OST
AT
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
(B
imet
al)
Flu
ids
unde
r pr
essu
re (
Oil)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pr:r
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avoi
ded.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
l ,tr
umen
tsC
,ven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ctto
rel
ativ
e er
ror,
sig
nific
ant d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
Indu
ctiv
e
Use
s of
num
berS
(w
ithou
t cal
cula
tion)
Cod
ing(
Mfg
. dat
a pl
ate)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Cen
tral
set
tings
Cen
tral
adj
ustm
ents
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
, li r'7
151
(TA
SK
ST
AT
EM
EN
T)
V-7
CH
EC
K G
AS
VA
LV
E A
SS' A
BL
Y
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
ST
KV
OM
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
Che
ck v
alve
Rem
ove
plun
ger
and
clea
n va
lve
seat
Che
ck v
alve
ope
ratio
n
SA
FE
TY
- H
AZ
AR
D
Saf
ety:
Alw
ays
disc
onne
ct c
ircui
t and
le,:k
out
bre
aker
bef
ore
wor
king
on
elec
tric
al c
ompo
nent
s
Haz
ard:
Ele
ctric
al s
hock
elec
tric
al b
urn
DE
CIS
ION
S
Det
erm
ine
if th
ere
is v
olta
ge to
val
veD
eter
min
e ty
pe o
f val
ve u
sed
No
heat
Val
ve c
hatte
rs
CU
ES
ER
RO
RS
Fai
lure
to m
ake
prop
er d
ecis
ions
wou
ld r
esul
tin
cha
ngin
g a
part
or
mak
ing
impr
oper
rep
air
(TA
SK
STA
TE
ME
NT
) V
-7 C
HE
CK
GA
S V
AL
VE
ASS
EM
BL
Y
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ate,
.11s
(B
imet
al]
Flu
ids
unde
r pr
essu
re [O
itjM
agne
tic fi
elds
of f
orce
[Sol
enoi
d]B
ehav
ior
Sci
ence
:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avoi
ded.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forv
.:trd
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Adk
utio
n al
gorit
hmS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Spe
cific
atio
nsV
OM
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Logi
c
Info
rmat
iona
l rep
ort
.
Ter
min
olog
yC
larit
y of
exp
ress
ion
153
(TA
SK
ST
AT
EM
EN
T)
V-8
CH
EC
K A
ND
AD
JUST
FA
N C
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
r
S'T
KLo
cate
con
trol
Adj
ust c
ontr
olC
heck
ope
rat'o
ns
Saf
ety:
Pro
per
care
apd
use
of h
and
tool
s
Haz
ard:
Inju
ries
to o
nese
lf or
oth
ers
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
cont
rol a
djus
tmen
t set
tings
acc
ordi
ngF
an r
uns
cont
inuo
usly
to m
fg's
. spe
cific
atio
nsIn
suffi
cien
t hea
tN
o he
at
Impr
oper
adj
ustm
ent w
ould
res
ult i
n co
ntin
ued
erra
tic o
pera
tion
(TA
SK
ST
AT
EM
EN
T)
V-8
CH
EC
K A
ND
AD
JUST
FA
N C
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge(S
TK
)
Beh
avio
r Sc
ienc
e:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
. and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
ltw
ith s
uper
iors
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn f
or th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f co
sts
shou
ld b
e ac
cura
te, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fel
low
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
roB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
tof M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fica
nt d
igits
, and
tole
ranc
e.B
ask
Log
icD
educ
tive/
Indu
ctiv
e
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Wri
ting
Spec
ific
atio
ns
Cen
tral
adj
ustm
ents
Serv
ice
orde
r
-,
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
lari
ty o
f ex
pres
sion
155
(TA
SK
ST
AT
EM
EN
T)
'S/9
CH
EC
K A
ND
AD
JUST
LIM
IT C
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
K
DE
CIS
ION
S
Det
erm
ine
cont
rol a
djus
tmen
t set
tings
acc
ordi
ngto
mfg
. spe
cific
atio
ns
Loca
te c
ontr
olA
djus
t con
trol
Che
ck o
pera
tions
c
Saf
ety:
Pro
per
care
and
use
of h
and
tool
s
Haz
ard:
Inju
ries
to o
nese
lf or
oth
ers
Uni
t sho
rt c
ycle
No
heat
CU
ES
ER
RO
RS
Impr
oper
adj
ustm
ent w
ould
res
ult i
n co
ntin
ued
erra
tic o
pera
tions
(TA
SK
ST
AT
EM
EN
T)
V-9
CH
EC
K A
ND
AD
JUST
LIM
IT C
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[S
TK
]E
ffect
ive
heat
ing
and
cool
ing
on e
xpan
sion
of m
ater
ials
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Ant
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Spe
cific
atio
ns
Cen
tral
adj
ustm
ents
Ser
vice
ord
er
Det
ail i
nfer
ence
iV
isua
l ana
lysi
s
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
ly w
Y +
''?
157
(TA
SK
ST
AT
EM
EN
T)
V-1
0 C
HE
CK
AN
D A
DJU
ST O
IL B
UR
NE
R
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
s.
4,"
r. f
ils'
s-a
.S
AF
ET
Y -
HA
ZA
RIY
4
ST
KD
GC
O2
KS
GA
Che
ck p
ump
pres
sure
Che
ck n
ozzl
e si
zeC
heck
sta
ck te
mpe
ratu
reO
btai
n C
O2
read
ing
Obt
ain
smok
e de
nsity
rea
ding
Obt
ain
over
five
dra
ft re
adin
gs
Saf
ety:
Pro
per
care
and
use
of h
and
tool
sU
se c
are
whe
n w
orki
ng w
ith o
il
Haz
ard:
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
Fire
or
expl
osio
n m
ay o
ccur
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
prop
er fi
ning
rat
eD
eter
min
e pr
oper
dra
ft an
d ov
er fi
rein
pip
eD
eter
min
e ac
cord
ing
to m
fg's
. spe
cific
atio
ns
Mai
nten
ance
che
ckU
se to
o m
uch
fuel
Sm
oke
odor
Insu
ffici
ent h
eat
Fai
lure
to c
heck
and
acc
urat
ely
adju
st'
burn
er w
ould
cau
se u
nit t
o op
erat
e in
effic
ient
ly
t--
4E,
..
(TA
SK
ST
AT
EM
EN
T)
V10
CH
EC
K A
ND
AD
JUST
OIL
BU
RN
ER
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Sim
plle
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
..K1
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of
mat
eria
ls [B
imet
al]
Flu
ids
zind
er p
ress
ure
[Oil]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[o
il]
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le,
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
oldd
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
a an
te b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op u
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
;
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
ts S
kills
and
Con
cept
sIn
stru
men
ts[D
G. C
O2K
. DS
T. S
GA
]G
iven
an
inst
rum
ent o
f mea
sure
, det
erm
ine
prec
isio
n an
d or
acc
urac
y w
ith r
espe
ctto
rel
ativ
e er
ror,
sig
nific
ant d
igits
. and
tole
ranc
e[D
G. C
O2K
. DS
T. S
GA
]
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing[
Mfg
. dat
a pl
ate]
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n [o
il]
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
Spe
cific
atio
nsIn
stru
men
ts
Com
pone
nts
Inst
rum
ents
Ser
vice
ord
er
CO
MM
UN
ICA
TIO
NS
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Logi
c
Info
rmat
iona
l rer
or:
Ter
min
olog
yC
larit
y of
exp
rc3.
non
159
(TA
SK
ST
AT
EM
EN
T)
V-1
1 C
HE
CK
NA
TU
RA
L G
AS
MA
NIF
OL
D P
RE
SSU
RE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
Sta
ndar
d lo
ot K
itM
anom
eter
SA
FE
T"
- H
AZ
AR
D
Con
nect
man
omet
er to
man
ifold
lake
rea
ding
of t
he m
anom
eter
Com
pare
rea
ding
of m
anom
eter
and
gas
met
er d
ial t
o m
fg Il
l Ura
ting.
Adj
ust r
egul
ator
ace
ordi
ngl.%
Saf
ety.
Mak
e su
re a
rea
is c
lear
and
met
erin
g de
ice
secu
rel%
mou
nted
away
from
fire
and
han
ds a
way
from
flam
e
Haz
ard
Impr
oper
adj
ustm
ent c
an c
ause
bac
k fl.
.sh
whe
n bu
rner
Wes
or is
ext
ingu
ishe
d
DE
CIS
ION
S
Rem
ove
plug
from
man
ifold
and
con
nect
man
omet
er
CU
ES
Impr
oper
fire
in u
nit c
ausi
ng lo
ss o
f B 1
.0 in
put a
ndin
suffi
cien
t ope
ratio
n
ER
RO
RS
Reg
ulat
or s
et to
o hi
gh w
ill 4
.auv
.-, o
verf
iring
and
bur
n ou
the
at e
xcha
nger
(TA
SK
ST
AT
EM
EN
T)
V-1
1 C
HE
CK
NA
TU
RA
L G
AS
MA
NIF
OLD
PR
ES
SU
RE
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Wor
k in
put,
wor
k ou
tput
, fric
tion
and
effic
ienc
y in
sim
ple
mac
hine
sR
atio
and
Pro
port
ion
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
1 .
Rea
ding
Writ
ing
Inst
ruct
ions
Ser
vice
ord
er
I 1P
roce
ss r
epor
t
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
161
Duty VI Servicing and Repairing Warm Air Heating Systems
I Replace heat exchanger2 Remove and replace oil pump3 Remove and replace cad cell4 Remove and replace oil nozzle5 Remove and replace electrodes6 Remove and replace limit control7 Remove and replace fan control8 Remove and replace gas valve9 Remove and replace wall thermostat
10 Remove and replace pilot safetyII Replace blower motor shaft and bearings12 Replace belt drive blower motor13 Replace direct drive blower motor
141
163
(TA
SK
ST
AT
EM
EN
T)
VI-
1 R
EPL
AC
E H
EA
TE
XC
HA
NG
ER
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
iV
Li
SA
FE
TY
- H
AZ
AR
D
ST
KLo
cate
hea
t exc
hang
erR
emov
e he
at e
xcha
nger
Rep
lace
hea
t exc
hang
erC
heck
uni
t ope
ratio
ns
Saf
ety:
Car
e an
d pr
oper
use
of h
and
tool
sU
se c
are
whe
n w
orki
ng w
ith g
as, o
il, o
rel
ectr
icity
Haz
ard:
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
Fire
or
expl
osio
n m
ay .o
ccur
rIM
ININ
IME
NY
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
prop
er r
epla
cem
ent a
ccor
ding
tom
fg's
. mod
el a
nd s
eria
l nos
.C
rack
or
hole
foun
d in
hea
t exc
hang
erF
ailu
re to
inst
all p
rope
r he
at e
xcha
nger
cou
ld r
esul
tin
uni
tno
t fun
ctio
ning
pro
perly
and
inef
ficie
ntly
(TA
SK
ST
AT
EM
EN
T)VI-1 REPLACE HEAT EXCHANGER
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[F
TK
IT
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[Exp
ansi
on a
nd c
ontr
actio
n of
cha
mbe
r)R
elat
ions
hip
of fo
rce
to d
isto
rtio
n in
an
elas
tic b
ody
[Exp
ansi
on a
nd c
ontr
actio
n of
cha
mbe
r)
Beh
avio
r S
cien
ce:
-
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
gnty
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t u.n
ecer
.san
lydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
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sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ldal
way
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
stra
ight
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
onth
mS
ubtr
actio
n al
gori'
lun
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
noil
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
yw
ith r
espe
ct
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ing[
Mfg
. dat
a pl
ate)
Bas
ic G
eom
etry
Ski
lls a
nd C
once
pts
Kno
wle
dge
of g
eom
etric
rel
atio
nshi
ps(D
uct)
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
K IL
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
165
(TA
SK
ST
AT
EM
EN
T)
Vi-2
RE
MO
VE
AN
D R
EPL
AC
E O
IL P
UM
P
TO
OLS
, EQ
UIP
ME
NT
MA
TE
RIA
LS,
OB
JEC
TS
AC
1 E
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
a '-
SA
FE
TY
HA
ZA
RD
ST
K
I
Tur
n of
f oil
supp
lyR
emov
.: pu
mp
Rep
lace
pum
pC
heck
ope
ratio
n
Saf
ety:
Car
e an
d pr
oper
use
of h
and
tool
sU
se c
are
whe
n w
orki
ng w
ith g
as, o
il, o
r el
ectr
icity
Haz
ard:
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
Fire
or
expl
osio
n m
ay o
ccur
ER
RO
RS
lom
mim
m,
DE
CIS
ION
S
No
suct
ion
of p
ump
Leak
in p
ump
CU
ES
Det
erm
ine
repl
acem
ent a
ccor
ding
to m
fg's
.m
odel
and
ser
ial N
os.
Fai
lure
to m
ake
prop
er r
epla
cem
ent c
ould
res
ult
in im
prop
er u
nit o
pera
tion
(TA
SK
ST
AT
EM
EN
T)
VI-
2 R
EM
OV
E A
ND
RE
PLA
CE
OIL
PU
MP
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
[Bim
etal
]F
luid
s un
der
pres
sure
[Oil]
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
duld
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tions
)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
.U
ses
of N
umbe
rs: (
with
out c
alcu
latio
n)C
odin
gMfg
. dat
a p.
ate
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[o
il]
CO
MM
UN
IC. '
ION
S
PE
RF
OR
MA
NC
E M
OD
ES
...V
..
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Mfg
. ins
truc
tions ,
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
167
(TA
SK
ST
AT
EM
EN
T)
VI 3
RE
MO
VE
AN
D R
EPL
AC
E C
AD
CE
LL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
': W
LED
GE
SA
FE
TY
HA
ZA
RD
el
ST
KV
OM
Dis
conn
ect p
ower
sup
ply
Loca
te c
ad c
ell
Rem
ove
cad
cell
Rep
lace
cad
cel
lC
heek
ope
ratio
n
Saf
ety:
Car
e an
d pr
oper
use
of h
and
tool
sU
se c
are
in c
heck
ing
pow
er s
uppl
y
Haz
ard.
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
Sev
ere
elec
tric
al s
hock
may
occ
ur
.
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
repl
acem
ent a
ccor
ding
to m
fg's
.m
odel
and
ser
ial N
os.
Cad
cel
l sho
ws
open
or
no r
esis
tanc
eF
ailu
re to
mak
e co
rrec
t rep
lace
men
t cou
ld r
esul
tin
impr
oper
uni
t ope
ratio
n
(TA
SK
STA
TE
ME
NT
) V
I-3
RE
MO
VE
AN
D R
EPL
AC
E C
AD
CE
LL
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Sim
ply
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge(S
TK
)E
ffect
s of
hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
(Bim
etal
)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
upen
ors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
pnde
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn fo
r th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
be a
void
ed.
Bill
ing
and
disc
ussi
on o
f cos
ts s
houl
d be
acc
urat
e, h
ones
t and
per
form
ed in
a s
trai
ght
forw
ard
man
ner.
He
shou
ld g
et a
long
with
his
fello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igoi
tican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
y_
,arit
y of
exp
ress
ion
Me
(TA
SK
ST
AT
EM
EN
T)
VI-
4 R
EM
OV
E A
ND
RE
PLA
CE
OIL
NO
ZZ
LE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
limai
on
SA
FE
TY
HA
ZA
RD
STK
Loc
ate
nozz
leR
emov
e no
zzle
Rep
lace
noz
zle
Che
ck o
pera
tion
Safe
ty:
Car
e an
d pr
oper
use
of
hand
tool
sU
se c
are
whe
n w
orki
ng w
ith o
il
Haz
ard:
Inju
ry to
one
self
or
othe
rs m
ay o
ccur
Fire
or
expl
osio
n m
ay o
ccur
DE
CIS
ION
S
*
No
heat
Noz
zle
plug
ged .
CU
ES
ER
RO
RS
Det
erm
ine
corr
ect n
ozzl
e re
plac
emen
t acc
ordi
ng to
mfg
's. m
odel
and
ser
ial N
os.
Failu
re to
mak
e co
rrec
t rep
lace
men
t cou
ldre
sult
in im
prop
er u
nit o
pera
tion
(TA
SK
STA
TE
ME
NT
) V
I-4
RE
MO
VE
AN
D R
EPL
AC
E O
IL N
OZ
ZL
E
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [
STK
)E
ffec
t of
heat
ing
and
cool
ing
on e
xpan
sion
of
mat
eria
ls [
Bim
etal
]Fl
uids
und
er p
ress
rre
[Oil]
Beh
avio
r Sc
ienc
e:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er q
uest
ions
whi
ch r
elat
es to
the
repa
ir jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
a ee
n pr
essu
re tc
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
i'ig
the
task
at h
and
with
out u
nnec
essa
nly
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd %
e sh
ould
sho
w c
once
rn f
or th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
b.
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of
cost
s sh
ould
be
accu
rate
, hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is f
ello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgon
thm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
noil
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
tsG
iven
an
Inst
rum
ent o
f M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fica
nt d
igits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
Indu
ctiv
e
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Rea
ding
Vie
win
g
Wri
ting
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Serv
ice
orde
r
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
lari
ty o
f ex
pres
sion
(TA
SK
ST
AT
EM
EN
T)
VI-
5 R
EM
OV
E A
ND
RE
PLA
CE
EL
EC
TR
OD
ES
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N11
1.01
1111
1117
1=.1
.
STK
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Loc
ate
elec
trod
esR
emov
e el
ectr
odes
Rep
lace
ele
ctro
des
Mak
e pr
oper
adj
ustm
ents
Che
ck o
pera
tion
Safe
ty:
Prop
er c
are
and
use
of h
and
tool
sU
se c
are
in c
heck
ing
pow
er w
uppl
y
Haz
ard:
Inju
ry to
one
self
or
othe
rs m
ay o
ccur
Seve
re e
lect
rica
l sho
ck m
ay o
ccur
DE
CIS
ION
S
Det
erm
ine
if e
lect
rode
s ar
e de
fect
ive
CU
ES
No
heat
No
spar
k
4111
1111
M
ER
RO
RS
Failu
re to
mak
e pr
oper
rep
lace
men
t cou
ld r
esul
t in
impr
oper
uni
t ope
ratio
n
(TA
SK
ST
AT
EM
EN
T)
V/-
5 R
EM
OV
E A
ND
RE
PLA
CE
ELE
CT
RO
DE
S
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
(B
imet
al)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
rXA
MP
LES
SK
ILLS
/CO
NC
EP
TS
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
(TA
SK
ST
AT
EM
EN
T)
VI-
6 R
EM
OV
E A
ND
RE
PLA
CE
Litv
lITC
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
ST
K
1111
1111
.1.1
1111
1
DE
CIS
ION
S
Det
erm
ine
type
of c
ontr
ol a
ccor
ding
to
PE
R F
OR
MA
: IC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Dis
conn
ew
er s
uppl
yR
emov
e co
ntro
lIn
stal
l new
con
trol
and
adj
ust
Che
ck o
pera
tion
Saf
ety:
Dis
conn
ect p
ower
sup
ply
Pro
per
care
and
use
of h
and
tool
s
Haz
ard:
Ele
ctric
al s
hock
or
burn
may
occ
urIn
jury
to o
nese
lf or
oth
ers
may
occ
ur
CU
ES
ER
RO
RS
Con
trol
def
ectiv
e.
Fai
lure
to m
ake
prop
er r
ep:a
cem
ent a
nd a
djus
tmen
tsm
fg's
. mod
el a
nd s
eria
l Nos
.w
ould
res
ult i
n in
effic
ient
ope
ratio
n of
the
unit
Ail
(TA
SK
ST
AT
EM
EN
T)
VI-
6 R
EM
OV
E A
ND
RE
PLA
CE
LIM
IT C
ON
TR
OL
SC
IEN
CE
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l acv
anta
ge IS
fig
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of
mat
eria
ls [B
imet
al)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
-,?m
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
..M o
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
nses
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e itp
air
job
at h
and
with
hon
esty
and
inte
grity
.he
sho
uld
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
3rup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and
Per
sona
l ent
angl
emen
ts o
r ar
gam
ents
with
cus
tom
ers
shou
ld a
lway
., be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
MA
TH
- N
UM
BE
R S
YS
TE
MS
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gont
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
ncc.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tions
)C
odin
gMfg
. dat
a pl
ate
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Mtg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y /G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
(TA
SK
ST
AT
EM
EN
T)
VI-
7 R
EM
OV
E A
ND
RE
PLA
CE
FA
N C
ON
TR
OL
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OtN
LED
GE
-0-$
11is
r'
SA
FE
TY
HA
ZA
RD
ST
KD
isco
nnec
t pow
er s
uppl
yR
emov
e co
ntro
lR
epla
ce n
ew c
ontr
ol a
nd a
djus
tC
heck
ope
ratio
n
Saf
ety:
Dis
conn
ect p
ower
sup
ply
Pro
per
care
and
use
of h
aid
:Dol
s
Haz
ard:
Ele
ctric
al s
hock
or
burn
may
occ
urIn
jury
to o
nese
lf or
oth
ers
may
occ
ur
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
type
of c
ontr
ol a
ccor
ding
to m
fg's
. mod
elan
d se
rial N
os.
.
Con
trol
def
ectiv
e
.
Fai
lure
to m
ake
prop
er r
epla
cem
ent a
nd a
djus
tmen
tw
ould
res
ult i
n in
effic
ient
ope
ratio
n of
the
unit
(TA
SK
ST
AT
EM
EN
T)
VI-
7 R
EM
OV
E A
ND
RE
PLA
CE
FA
N C
ON
TR
OL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge (
ST
K)
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of
mat
eria
ls (
Bim
etal
)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty a
rises
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
gnty
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pn
dein
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
eta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
job
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
atw
ill n
othi
p- e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
n% (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
limn
of N
umbe
r: (
with
out c
alcu
latio
n)C
odin
gMfg
. dat
a pl
ate
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Rea
ding
Vie
win
g
Writ
ing
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
(TA
SK
ST
AT
EM
EN
T)
VI-
8 R
EM
OV
E A
ND
RE
PLA
CE
GA
S V
AL
VE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
-411
111M
INE
MIII
IIIM
P
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
STK
Tur
n of
f fu
el s
uppl
yR
emov
e va
lve
Rep
lace
val
veC
heck
val
ve o
pera
tion
SA
FE
TY
- H
AZ
AR
D
Safe
ty:
Car
e an
d pr
oper
use
of
hand
tool
sU
se c
are
whe
n w
orki
ng w
ith g
as
Haz
ard:
Inju
ry to
one
self
or
ot!-
ers
may
occ
urFi
re o
r ex
plos
ion
may
occ
ur
DE
CIS
ION
SC
UE
S
Det
erm
ine
type
of
valv
e an
d pr
oper
rep
lace
men
tG
as v
alve
def
ectiv
eac
cord
ing
to m
fg's
. spe
cifi
catio
ns
ER
RO
RS
Failu
re to
mak
e pr
oper
rep
lace
men
t wou
ldre
sult
in u
nit n
ot f
unct
ioni
ng p
rope
rly
(TA
SK
ST
AT
EM
EN
T)
VI-
8 R
EM
OV
E A
ND
RE
PLA
CE
GA
SV
ALV
E
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge (
ST
K)
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
o"
mat
eria
ls (
Bim
etal
]M
agne
tic fi
elds
of f
orce
(sol
enoi
ds]
Flu
ids
unde
r pr
essu
re(g
as]
Beh
avio
r S
cien
ce:
.T
echn
icia
n sh
ould
talk
onl
y ab
out t
he r
epai
r jo
b an
d in
a k
now
ledg
eabl
e w
ay, a
ndpr
omot
e hi
s em
ploy
er w
hene
ver
poss
ible
.H
e sh
ould
con
sult
with
sup
erio
rs w
hen
diffi
culty
aris
esH
e sh
ould
ans
wer
que
stio
ns w
hit!
rela
tes
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
etw
een
pres
sure
to c
ompl
ete
job
and
prid
e in
wor
k.E
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
d w
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
for
the
prem
ises
.H
e sh
ould
r c
autio
ned
to e
nter
,snl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal e
ntan
glem
ents
or
argu
men
ts w
ith c
usto
mer
s sh
ould
alw
ays
beav
oide
d.B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is fe
llow
em
ploy
ee a
nd J
evel
op a
rel
atio
nshi
p th
at w
ill n
othu
rt e
ach
othe
rs p
rofe
ssio
nalis
m.
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
and
Con
cept
sR
atio
and
pro
port
iono
ilB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
Giv
en a
n In
stru
men
t of M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fican
t dig
its, a
nd to
lera
nce.
Bas
ic L
ogic
Ded
uctiv
e/In
duct
ive
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MU
CE
MO
DE
SE
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
Rea
ding
Vie
win
g
Writ
ing
211
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
.,
(TA
SK
ST
AT
EM
EN
T)
VI-
9 R
EM
OV
E A
ND
RE
PLA
CE
WA
LL
TH
ER
MO
STA
T
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
K
DE
CIS
ION
S
Det
erm
ine
type
and
for
repl
acem
ent t
herm
osta
tac
cord
ing
to m
fg's
. mod
el a
nd s
eria
l Nos
.
Rem
ove
ther
mos
tat
Rep
lace
ther
mos
tat a
nd c
heck
cal
ibra
tion
Che
ck o
pera
tion
Saf
ety:
Pro
per
care
and
use
of h
and
tool
s
Haz
ard:
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
CU
ES
The
rmos
tat c
anno
t be
calib
rate
d or
adj
uste
d
ER
RO
RS
Fai
lure
to r
epla
ce w
ith p
rope
r th
erm
osta
t wou
ld r
esul
t in
unit
not p
erfo
rmin
g to
its
capa
city
(TA
SK
ST
AT
EM
EN
T)
V1-
9 R
EM
OV
E A
ND
RE
PLA
CE
WA
LL
TH
ER
MO
STA
T
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [
STK
]E
ffec
t of
heat
ing
and
cool
ing
on e
xpan
sion
of
mat
eria
ls [
Bim
etal
]T
rans
fer
of h
eat f
rom
one
bod
y to
aro
ther
[Hea
t on
bim
etal
]
Beh
avio
r Sc
ienc
e:
Tec
hnic
ian
shou
lu ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
way
, and
prom
ote
his
empl
oyer
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
ffic
ulty
ari
ses.
He
shou
ld a
nsw
er 4
uest
ions
whi
ch r
elat
es to
the
repa
:: jo
b at
han
d w
ith h
ones
ty a
nd in
tegr
ity.
He
shou
ld m
aint
ain
a pr
oper
bal
ance
bet
wee
n pr
essu
re to
com
plet
e jo
b an
d pr
ide
in w
ork.
Em
phas
is s
houl
d be
pla
ced
upon
per
form
ing
the
task
at h
and
with
out u
nnec
essa
rily
disr
uptin
g su
rrou
ndin
g ac
tiviti
es a
nd h
e sh
ould
sho
w c
once
rn f
or th
e pr
emis
es.
He
shou
ld b
e ca
utio
ned
to e
nter
onl
y in
to th
ose
cust
omer
rel
atio
ns w
hich
per
tain
to th
e jo
bat
han
d. P
erso
nal
enta
ngle
men
ts o
rar
gum
ents
with
cus
tom
ers
shou
ld a
lway
s be
avo
ided
.B
illin
g an
d di
scus
sion
of
cost
s sh
ould
be
accu
rate
, hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
alo
ng w
ith h
is f
ello
w e
mpl
oyee
and
dev
elop
a r
elat
ions
hip
that
will
not
hurt
eac
h ot
hers
pro
fess
iona
lism
.
Rat
iona
l Num
bers
:
Fund
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mB
asic
Ari
thm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
noil
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
tsG
iven
an
Inst
rum
ent o
f M
easu
re, d
eter
min
e pr
ecis
ion
and/
or a
ccur
acy
with
res
pect
to r
elat
ive
erro
r, s
igni
fica
ntdi
gits
, and
tole
ranc
e.B
asic
Log
icD
educ
tive/
Indu
ctiv
eU
ses
of N
umbe
rs: (
with
out c
alcu
latio
n)C
odin
g-M
fg. d
ata
plat
eB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Rea
ding
and
inte
rpre
ting
repr
esen
tatio
nal g
raph
s[W
irin
g di
agra
m]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Iski
lii
Rea
ding
Vie
win
g
Wri
ting
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Serv
ice
orde
r
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
lari
ty o
f ex
pres
sion
(TA
SK
ST
AT
EM
EN
T)
VI-
10 R
EM
OV
E A
ND
RE
PLA
CE
PIL
OT
Sth
FET
Y
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
ST
K
DE
CIS
'ON
S
Det
erm
ine
wha
t com
pone
nt in
saf
ety
pilo
t ass
embl
y is
def
ectiv
eD
eter
min
e ty
pe a
nd s
ize
or p
rope
r re
plac
emen
tac
cord
ing
to m
fg's
. mod
el a
nd s
eria
l Nos
.
1
Tur
n of
f fue
l sup
ply
Loca
te d
efec
tive
com
pone
ntR
epla
ce d
efec
tive
com
pone
ntC
heck
for
prop
er o
pera
tion CU
ES
No
heat
Cus
tom
er m
ust r
elig
ht p
ilot o
r re
set s
afet
y bu
tton
Saf
ety:
Pro
per
care
and
use
of h
and
tool
sU
se c
are
whe
n w
orki
ng'it
h ga
s
Haz
ard:
Inju
ry to
one
self
or o
ther
s m
ay o
ccur
Fire
or
expl
osio
n m
ay o
ccur
ER
RO
RS
Fai
lure
to r
epla
ce p
rope
r co
mpo
nent
wou
ld r
esul
t in
com
plai
nt n
ot b
eing
sat
isfie
d or
con
tinue
d er
ratic
ope
ratio
n of
the
unit
(TA
SK
ST
AT
EM
EN
T)
VI-
10 R
EM
OV
E A
ND
RE
PLA
CE
PIL
OT
SA
FE
TY
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [S
TK
'E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fm
ater
ials
(B
imet
al]
Flu
ids
unde
r pr
essu
re (
gas)
Beh
avio
r S
cien
ce:
Tec
hnic
ian
shou
ld ta
lk o
nly
abou
t the
rep
air
job
and
in a
kno
wle
dgea
ble
..,ay
. and
prom
ote
his
empl
oye:
whe
neve
r po
ssib
le.
He
shou
ld c
onsu
lt w
ith s
uper
iors
whe
n di
fficu
lty .:
uses
.H
e sh
ould
ans
wer
que
stio
ns w
hich
rel
ates
to th
e re
pair
job
at h
and
with
hon
esty
and
inte
grity
.H
e sh
ould
mai
ntai
n a
prop
er b
alan
ce b
et e
en p
ress
ure
to c
ompl
ete
job
and
prid
e in
wor
kE
mph
asis
sho
uld
be p
lace
d up
on p
erfo
rmin
g th
e ta
sk a
t han
dw
ithou
t unn
eces
saril
ydi
srup
ting
surr
ound
ing
activ
ities
and
he
shou
ld s
how
con
cern
fort
he p
rem
ises
.H
e sh
ould
be
caut
ione
d to
ent
er o
nly
into
thos
e cu
stom
er r
elat
ions
whi
ch p
erta
in to
the
'.)
at h
and.
Per
sona
l ent
angl
emen
ts o
r ar
gum
ents
with
cus
tom
ers
shou
ld a
lway
sbe
avo
ide.
..B
illin
g an
d di
scus
sion
of c
osts
sho
uld
be a
ccur
ate,
hon
est a
nd p
erfo
rmed
in a
str
aigh
tfo
rwar
d m
anne
r.H
e sh
ould
get
al,I
ng w
ith h
is fe
llow
em
ploy
ee a
nd d
evel
op a
rel
atio
nshi
p th
atw
ill n
othu
rt e
ach
othe
rs r
.9fe
ssio
nalis
m.
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmU
ses
of N
umbe
rs: (
With
out c
alcu
latio
n)C
odin
gMfg
. dat
a pl
ate
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
nGas
......
.....1
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
0664
Rea
ding
.4.4
Vie
win
g
Wnt
ing
Dat
a pl
ate
Mfg
. ins
truc
tions
Com
pone
nts
Ser
vice
ord
er
Det
ail i
nfer
ence
Vis
ual a
naly
sis
Info
rmat
iona
l rep
ort
Ter
min
olog
y/G
ener
al v
ocab
ular
yC
larit
y of
exp
ress
ion
40
(TA
SK
ST
AT
EM
EN
T)
VI
-!!
RE
PLA
CE
BL
OW
ER
MO
TO
R S
HA
FT A
ND
BE
AR
ING
S
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Sta
ndar
d T
ool K
itS
et b
low
er b
eann
gsB
low
er s
haft
Dis
conn
ect b
low
er fr
om u
nit
Rep
lace
sha
ft an
d be
arin
gs in
blo
wer
Rea
ssem
ble
blow
er in
uni
tC
heck
rot
atio
n of
blo
wer
to o
bser
ve p
rope
r cl
eara
nce
Saf
ety
Be
sure
cab
inet
or
rem
aini
ng p
arts
are
sup
port
ed p
rope
rly w
hen
repa
iring
sec
tion
is r
emov
ed
Hai
ard:
Whe
n di
scon
nect
ing
blow
er u
nit I
t can
dro
p th
us d
entin
g ho
usin
gm
akin
g at
inop
erab
le a
fter
repa
ir
DE
CIS
ION
SC
UE
S
Noi
sy o
pera
tion
of b
low
er u
nit
ER
RO
RS
.
Impr
oper
loca
tion
of s
haft
stop
s ca
n ca
use
enou
gh fn
ctio
n to
caus
e ov
erlo
adin
g of
blo
wer
mot
orT
ore
plac
e be
arin
gs o
nly
or c
ompl
ete
shaf
tan
d be
arin
g un
it
1
(TA
SK
ST
AT
EM
EN
T' V
I -11
RE
PLA
CE
BLO
WE
R M
OT
OR
SH
AF
TA
ND
BE
AR
ING
S
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Wor
k in
put a
nd w
ork
outp
ut, f
rictio
n an
d ef
ficie
ncy
in s
impl
e m
achi
nes
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
onth
m.
Sub
trac
tion
algo
rithm
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
noil
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
y w
ith r
espe
ctto
rel
ativ
e er
ror.
sig
nific
ant d
igits
. and
tole
ranc
eB
asic
Log
icD
educ
tive/
Indu
ctiv
e
Use
s of
Num
bers
: (w
ithou
t cal
cula
tion)
Cod
ingM
fg. d
ata
plat
e
CO
MM
UN
ICA
TIO
NS
Rea
ding
Writ
ing
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Inst
ruct
ions
Ser
vice
ord
er
Pro
cess
rep
ort
Info
rmat
iona
l rep
ort
Ter
min
olog
yC
larit
y of
exp
ress
ion
rank
(TA
SK
ST
AT
EM
EN
T).
VI-
12 R
EP
LAC
E B
ELT
DR
IVE
BLO
WE
R M
OT
OR
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
Sta
ndar
d T
ool K
itR
ubbe
r M
ount
Mot
orV
-Bel
tA
mpr
obe
im...
1.21
DE
CIS
ION
S
Pro
pel H
P m
otor
1
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Dis
conn
ect b
low
er s
uppl
yR
emov
e m
otor
and
rep
lace
Rew
ire m
otor
Inst
all V
-Bel
talli
gn a
nd c
orre
ct te
nsio
nC
heck
uni
t mot
or a
mp
draw
aga
inst
mot
or r
atin
g
Inop
erat
ive
blow
er
Saf
ety
Cov
er e
nds
of d
isco
nnec
ted
wire
s
Haz
ard:
Mot
or c
an b
e dr
oppe
d ca
usin
g in
jury
to th
e w
orke
rs fe
et o
rfin
gers
due
to th
e po
sitio
n w
hile
per
form
ing
the
task
CU
ES
ER
RO
RS
Impr
oper
wire
con
nect
ions
mot
or r
uns
wro
ng d
irect
ion
(TA
SK
ST
AT
EM
EN
T)
VI-
12 R
EPL
AC
E B
EL
T D
RIV
E B
LO
WE
R M
OT
OR
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Wor
k in
put,
v.or
k ou
tput
, fric
tion
and
effic
ienc
y in
sim
ple
mac
hine
s
'
Rat
iona
l Num
bers
:
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmB
asic
Arit
hmet
ic S
kills
::::.
_ C
once
pts
Rat
io a
nd p
ropo
rtio
noil
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
tsG
iven
an
Inst
rum
ent o
f Mea
sure
, det
erm
ine
prec
isio
n an
d/or
acc
urac
yw
ith r
espe
ctto
rel
ativ
e er
ror.
sig
nific
ant d
igits
. and
tole
ranc
e.B
AS
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Rea
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Writ
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Inst
ruct
ions
Ser
vice
ord
er
EX
AM
PLE
S
189
SK
I LLS
/CO
NC
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TS
Pro
cess
rep
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Info
rmat
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Ter
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larit
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Index: Standard Tool Kit
STKStandard Tool Kit
i -Wire Brush1-Scrat ,h Awl1-Needle Nose Pliers1-Standar Screwdriver Set 12", 6", 4", Stubby, and Pocket Size1-Allen Wrench Set1-Phillips acrewdriver Set 8", 4", and Stubby1-Set Open Adjustable Wrenches 12", 10", 8", 6", 4"1-Channel Lock Pliers1-Standard Pliers1-Socket Set Va" to 3/4"1-Nut Driver Set 1/2" to 1/2"1-Vaco Grip Pliers1-Spark Drill1-Swage Kit 3/16" to 1/2"1-Set Orifice Drills1-Level1-Set Box End Wrenches1-Set Open End Wrenches1-Tube Cutter1-Mini Tube Cutter1-Flaring Tool Kit1-Valve Wrench1-Magnet
1 y's
1-Hand Drill1-Nozzle Wrench1-InSpection Mirror2-Spirit Thermometers1-Flashlight2-Pipe Wrenches 14", 10"1-Crimper Tool1-Hand Brake Tool1-Rule or Tape1-Pair Double Cut Snips1-50' Grounded Extension Cord1-Oil Can1-9t4 Electric Drill1-Set Drill Bits1-Star Drill2-Chisels 12" long and 1 cold2-Hammers medium, large1-Sheet Metal HammerI-Pair Straight Snips 3" jaw1-Pair Left Snips1-Pair Right SnipsI-Pair Goggles1-Hack Saw
Silver Clips1-Hard Hat or Plastic Bump Hat
TEST EQUIPMENT
APAVIAVMCACO2KCTKDCDGDSTELDHLDMAVTMGPTSGASPTPTTTUMVGVOMVPWM
Index: Test Equipment
AMPROBEAIR VELOCITY INDICATORAIR VELOCITY METERCAPACITOR ANALYZERCO2 KITCOMBUSTION TEST KITDIAL A CHARGEDRAFT GAUGEDIAL STACK THERMOMETERELECTRONIC LEAK DETECTORHALIDE LEAK DETECTORMILLI AMP VOLT TESTERMANIFOLD AND GAUGESPRESTOLITE B TANK WITH TORCH HEADSMOKE GAUGE ANALYZERSLING PSYCHROMETERTAYLOR PLENUM THERMOMETERTHERMISTER THERMOMETERMANOMETERVACUUM GAUGEVOLT OHM METERVACUUM PUMPWATT METER
0 t)
Index: Standard Supplies
SS STANDARD SUPPLIES
1. PIPE JOINT COMPOUND2. LEAK LOCK3. SILVER SOLDER4. SILVER SOLDER FLUX5. COPPER TUBING7. COPPER SWEAT FITTINGS8. PIPE FITTINGS9. GAS COCKS
10. REFRIGERATION VALVES11. SEALING COMPOUND12. DRIERS13. SIGHT GLASSES14. MOISTURE INDICATORS15. CYLINDER R-1216. CYLINDER R-2217. CYLINDER NITROGEN18. REFRIGERATION OIL19. IN LINE SERVICE VALVES20. CAPACITORS21. OVERLOAD PROTECTORS22. RELAYS23. BELTS24. FILTERS25. TAPE: ELECTRICIANS, FURNACE, ARMAFLEX, FRICTION
26. ASSORTED WIRE NUTS, SHEET METAL SCREWS, NUTS, BOLTS
197
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APPENDIX
Duty I
1. Install Window Air Conditioner2. Install Central Air Conditioner3. Install Self Contained Commercial Refrigeration Unit4. Install Remote Condensing Unit with Single Cabinet
DomesticRefrigeration
x
CommercialRefrigeration
xx
AirConditioning
xx
5. Install Remote Commercial Condensing Unit withMultiple Cabinets x
Duty H
1. Hook Hermetic Compressor Direct to Power Supply x x x2. Check Circuitry of the Compressor, Protector and Relay x x x3. Check Capacitor x x x4. Check Circuitry of Defrost System x x x5. Check Circulation Fan Motors x x x6. Check and Adjust Control Thermostat x x x7. Attach Manifold and Gauges to Service Valves and
Check Pressure x x x9. Check Compressor Efficiency x x x
10. Locate Leak in a Refrigeration System Using ElectronicLeak Detector x x x
11. Locate Leak in a Refrigeration System Using HalideTorch x x x
12. Locate Leak in a Refrigeration System Using BubbleMethod x x x
13. Check Unit OperationOil LevelSight GlassMoisture Indicator x x
14. Check and Adjust Automatic Expansion Valve x x15. Check, Test, and Adjust Thermostatic Expansion Valve x x16. Check and Adjust Pressure Motor Control x x17. Check and Adjust Low Pressure Safety Control x x18. Check and Adjust High Pressure Safety Control x x19. Adjust and Calibrate Oil Pressure Control20. Check Icemaker for Operation x
x x
21. Check and Adjust Water Valve x x22. Check Hot Gas Defrost Solenoid and Valve x x
01
Heating
Refrigeration Refrigeration Conditioning
23. Check Humidity with Sling Psychrometer x24. Check and Adjust Humidstat x x25. Check Condensate Pump and Drain x x26. Check Blower Assembly and Filter x x
27. Check Heat Pump Reversing System x28. Check System for Burn Out and Install Cleanup Kit x x x29. Service Electronic Air Cleaner x x
ng
Duty III
1. Evactiate a Refrigeration System2. Pump System Down into Receiver Tank3. Recharge System Using Sight Glass4. Recharge System Weighing in Refrigeration5. Fill Dial a Charge6. Recharge a Refrigeration System Using Dial a Charge
and Replace Control Thermostatand Replace Defrost Timerand Replace Motor Overload Protectorand Replace Capacitorand Replace Defrost Heaterand Replace Defrost Terminatorand Replace Relayand Replace Fan Motors
Repair Leak in Copper Lines of SystemRemove and Replace CompressorAdd Oil to SystemRemove Restriction from Capillary TubeRemove and Replace Capillary TubeRemove and Replace Automatic Expansion ValveRemove and Replace Thermostatic Expansion ValveInstall it Drier, Sight Glass or Moisture Indicator
x x xx xx xx x
xx
7. Remove x x x8. Remove x x9. Remove x x x
10. Remove x x x11. Remove x x12. Remove x x13. Remove x x x14. Remove x x x
15. x x x16. x x x17. x x x
18. x x x
19. x x x
20. x x
21. x x22. x x
23. Remove and Replace High or LOW Pressure SafetyControl x x
24. Remove and Replace High or Low Pressure MotorControl
25. Remove and Replace Oil Pressure Safety Control26. Remove and Replace Hot Gas Defrost Solenoid and
Valve x27. Repair Evaporator with Epoxy x28. Remove and Replace Condensation Pump Motor x x29. Remove and Replace Humidistat x x30. Balance the Air Conditioning System x
45
199
x
x
Domestic Commercial AirRefrigeration Refrigeration Conditioning Healing
Duty IV
1. Install Furnaces GasOilElectric x
Duty V
1. Check Oil Supply x
2. Check Oil Pump x
3. Check Ignition System x
5. Check Pilot and Thermocouple Assembly x
6. Check Gas Valve Assembly x
7. Check Wall Thermostat x x
8. Check and Adjust Fan Control x x
9. Check and Adjust Limit Control x x
10. Check and Adjust Oil Burner x
11. Check Natural Gas Manifold Pressure x x
Duty VI
1. Replace Heat Exchanger x
2. Remove and Replace Oil Pump x
3. Remove and Replace Cad Cell x
4. Remove and Replace Oil Nozzle x
5. Remove and Replace Electrodes x
6. Remove and Replace Limit Control x x
7. Remove and Replace Fan Control x x
8. Remove and Replace Gas Valve x
9. Remove and Replace Wall Thermostat x x
10. Remove and Replace Pilot Safety x
11. Replace Blower Motor Shaft and Bearings x x
12. Replace Belt Drive Blower Motor x x
13. Replace Direct Drive Blower Motor x x
100
