Tm 5-5060 1942 Le Roi Motorized Compressor on Gmc Deuce

8/13/2019 Tm 5-5060 1942 Le Roi Motorized Compressor on Gmc Deuce

1/221

SSOR

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2/221

ManualandPartsCatalog,

,Model105GA,publishedby

shedfor theinformation

ned.

C),June10,1941.)

PublicDomain,Google-digitized

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3/221

NDPARTSCATALOG,MO--|

ORMODEL105GA,LEROI'

D.C.,4fi*Q^ter1944.A

1942,is


4/221

ALANDPARTSCATALOG

6,5-277,5-297,5-327,5-367,5-412,

7,5-500,CompositeCo,MapDet

GeneratingUnit(GA),Model

eCrew,FloatingPowerPlantDet

F),SurveyLiaisonDet (OA)

0-1S,5-512S,5-516S,5-517S,

-537S,5-538S,5-539S,5-547S,5-627,

Regt,Hq& HqServCo,ShoreBn,

sseeFM21-6.

TINGOFFICE:1844


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5/221

105GA

Thor"AirTools

llengines,oddnumbersareall compressors.Com-

extnumberhigherthan itsrespectiveengine.

anualare

outnotice.PublicDomain,Google-digitized

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6/221

LWAUKEE.WISCONSIN

el105GAasMountedon GMC,

k

el105GAasmountedonWood

y ConvenientVehicle


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7/221

NS

ne

oled,AirCompressor


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8/221

MILWAUKEE.WISCONSIN

ompressorismountedon asixwhee1Genera1

dwitheasi1yaccessib1etoo1boxesfor con-

s,spareparts,misce11aneousequipment,etc.

nsverse1ybehindthetruckcabprovidesseating

dis arrangedwithsafetystrapsandhand-rai1

ir beingaccidenta11ythrownoff.

ocatedbeneaththeair receiver,ispartia11y

guard,protectingaboutone-ha1fofits con-

kprovidesadequatefue1to drivethetruck

operatethe compressorforeighthours.Two

dateachendof theeightcubicfootairreceiver

ithone-hundredfeetof3/4"air hose.Afifty

ose isstoredintoo1boxbehindthe truckcab.

ovidedin therearsideofthe airreceiver,

ns.

omp1ete1yenc1osedbyastee1 hoodtop,hinged

pan,therebyaffordingprotectionfromthe

ya fourcy1inderva1ve-in-headLeRoigaso1ine

mpressorthroughamanua11yoperatedTwinDisc

spring1oaded"typewhichaffordsamaximum

tmentisrequired.Theengine hasadisp1ace-

ndcandeve1opa maximumofthirty-fourhorse

M.Thecy1indersareremovab1ewets1eevetype.

tica11ye1iminatepittingandwearofexhaust

citygeartypeoi1pumpinsures fu11forcefeed

parts.Bothmainandconnectingrodbearings

ck,precisiontype.Athermostat1ocatedin

ose,regu1atesthecoo1ingsystemtemperatureto

ainefficientoperationandtoreducetheten-

reecy1indertwostage,air-coo1edmode1andde-

e airperminute,atone-hundredpoundsgauge

nnectingrodbearingsarethe precisiontype,

ankshaftmainsaretaperedro11erbearings.

meansofap1ungertypeoi1 pumpdriventhrough

crankshaft.Va1vesarespecia1a11oycircu1ar

ageswhicharemountedinthe cy1inderheadsso

ndeasi1yremovedwithoutremovingtheheads.

eats andareretainedbyforgedstee1bumpers.

pe,aircoo1edintercoo1erefficient1ycoo1sthe

re cy1indertowithinafewdegreesofthe

ent1ygroupedontheinstrumentpane1andsuffi-

toenab1etheoperatorto detect,atag1ance,

erationofthe compressor.

heachunit arequick1yandsecure1yattached

sofuniversa1coup1ings;theyaredesignedto

ewithaminimumof maintenance.Acombination

portab1eworkbenchwhichisconvenient1y

whennot inuse.


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9/221

NS*"v"

EANDAIRCOMPRESSOR

.MEASURE)

e14qts.

pressor8qts.

each.!pt.

865R.P.M.

ockwiseRotationAmericanBosch.MJC4C

"to.014"

30"

eHot)015"

ft,62A10

ded)TwinDiscMode1SL-21111-1/2"

e-1 highpressure)3

4"

perminutede1iveredat 100'

1eve1)105

TED

toBumper)254"

desoffenders)r90"

muff1er)93"*

witha11too1s,fue1&oi1)....14,300*

d.

D

withtoo1s,fue1&oi1)6700 1bs.

ed.


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10/221

UKEE.WISCONSIN

EXTOMANUFACTURERS

QUIPMENTUSEDONLEROI

RESSOR

OR

0R)A77-166

P.

ENITHCARBURET0RDIVISI0N

ER.A77-137

GDIVISI0N

T0RA108-85

ERICANBOSCHC0RP.

NC.

CO.

NDEPENDENTPNEUMATIC

E

TPNEUMATIC

NEUMATIC

NEUMATIC


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11/221

NS

S

TAPPROXIMATELYLEVF.LTOINSUREEQUALLUBRIC-

ETHATTHEREISFUELINTANK.OPERATEFUEL

FILLCARBURETORSEETHATENGINECOOLING

R.CHECKOILLEVELINENGINE&COMPRESSOR

OMPRESSORCLUTCHISDISENGAGED.PULL

INEONEREVOLUTION.PUSHCHOKEIN

NSWITCHOUT,4.CRANKENGINE.IF

IMMEDIATELY,PUSHINCHOKE&CRANK

HERWHENSTARTINGISDIFFICULT,CRANKTHE

ALLTHEWAYOUTFORAFEWREVOLUTIONS,ORIT

EMOVESPARKPLUGSiPOURASMALLAMOUNT

CYLINDER.WAITAFEWMINUTESFORTHE

E.PULLOUTIGNITIONSWITCH&.START

MUPAFEWMINUTESBEFORESTARTINGCOMPRESSOR.

TOPCOMPRESSOR.ALLOWENGINETOIDLEA

LOSINGIGNITIONSWITCH.OPENRECEIVER

ence,thesimplifiedinstructionplateisre-

ledinstructionscoveringcare,operationand

torizedAirCompressor,pleaserefertosection

.

DEG.F.

F.

RS.

N

he

d

ons

.

ALS.

DEG.F.

F.

RS.

N

he

d

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12/221

Y,MILWAUKEE.WISCONSIN

g

d.

ERWEREQUIRE.

ETORSIDE

KEE.Wis

efaci1itiesprovidedfortoo1sand equipmentin

).

OSIDE

KEE.Wis.

efaci1itiesprovidedfortoo1sand equipmentin


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13/221

UKEE.WISCONSIN**

1

ompressor2

forStorage4

athasbeenin Storage.....5

ons6

8

2

1

2

46

t,49B

t.59

2

r77


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14/221

UKEE.WISCONSIN

ntinued)

mpressorUnit91to146

9to153

ne149

151

2

154to166

ypeWoodBoringMachines...155

61

178'


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17/221

NS

TROLS

TT0N:Pulling

electric-

eryand

usesthe

ngage

reby

rtthe

cold.

s off

ga

ttonin

re

ng.

ayin

dhas

EVERrun

ayout.

be

gineto

nel

onthe

tes

g

henen-

speed,ammeterneedleshouldbeinthe "charge"

wsdischargecontinuously,thecauseshouldbe

oidcompletelydischargingthebattery.

ENGINE;Thisgaugeindicatesthepressureofthe

engine.Theindicatorhandshouldhold in

sectionof dialwhenengineisrunning at

ordoesnotshowpressure,stopengine

atecause.

COMPRESS0R:

arfunction

enorcompressoroilpressuregauge

y indicateonlythepressure.

Thisgaugeindicatesthepressureofthe airin

maloperationit shouldreadl00pounds

dcompressorhavebeenthoroughlywarmedupto

Thisgaugeindicatesthefunctionsofthecompressed

rtofthe systemisoperatingnormallythe

thecenterposition.Whenthemachineis

he unit,inoperation,unloads,thehand

de.Ifthe handcontinuouslyridesin

dialitindicatesaleak inthelow

ere,eitherinthevalvesorlines orconnections.

uslyintherighthandportionit indicates

hpressure system.

TCH:Whenthisbuttonispulledout magnetoisin"on"

oninshort circuitsthemagneto,thereby

stopsengine.


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18/221

LWAUKEE.WISCONSIN

CH:Thisunitautomaticallyregulatestheair

ertank.Whenpressureinreceiverreaches

ressortounloadand enginetoslowdown.

rdropsapproximatelyl2poundsitcauses

ompressortoload.

WAIRCOMPRESSOR

venarigid operatingtestandfinalinspection

the factory,butwerecommendthatyoureadand

nedbelowbeforestartingoroperatinga newair

ompressor,usingthe"MaintenanceSchedule"

heengineandaircompressorcrankcases,air

e filledtotheproperl evelswiththe

prevailingtemperature(referto

onData.

gine,removethespark plugsandpourabout

tureofhalfoiland halfgasolineintoeach

onofthepistons andcylinderswhenthe

cticeis recommendedforenginesthat

aysormore.

gineoilto every5gallonsoffuelin the

gsonly.

M

tely8gallonsU.S.

orbottomtank andclosedraincockonright

carburetor.Fillsystemwithcleanwater

ossible).Neverpourcoldwaterinto an

eis hotasitmay causethecylinderhead

eoperatedinfreezing temperatures(32F.or

her0perations".

eis designedtooperateongasolinethathas

ating.Toget themaximumefficiency

efuelforwhichthe engineisdesignedandbe

andofgoodquality.

eangasolineThecapacityofthefueltank

s(U.S.)

uel tankwithanopenflamenearor when

pfunnel incontactwithmetaloffueltank

ssibility ofanelectricsparkignitingthe

n thefueltankfillercapis keptopenat

flowofthefuel.


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19/221

NS*a

rucksoitwill beasnearlevelas

ricationto allparts.

dingto"MaintenanceSchedule".Beforestart-

athasbeenidle foranylengthoftime,

ourabouttwotablespoonfulsofmixtureof

solineintoeachcylindertoinsure

ylinderwallswhenenginefirst starts.

ereis fuelinfueltank.(Addone pintof

vegallonsoffuelin tankforfirsttwo

e locatedbeneathfueltankoperatehand

to fillcarburetorfloatchamber.

gaged,(leverpulledawayfromengine).

eceiverandallowanymoisturetodrainout

peatthiseveryfourtoeight hours

nguponweatherconditions.

witchinthe "0FF"position(pushedin)and

ayout, crankengineoveronerevolution.

pull magnetogroundswitchto"0N"position

otbe necessarytochokeawarmengine.

mediately,pushinchokeandcontinueto

extremelycoldweatherwhenstartingis

withthechokeallthe wayoutforafew

cessarytoremovespartcplugs andpoura

ntoeachcylinder.Waita fewminutesfor

pullignitionswitchto "0N"positionand

ankingmotormorethan30secondsata time

ankingmotortocool.Excessivecranking

gmotortooverheatandfail.

wtowarmup afewminutesbeforestarting

surein receiverTank,lifthandunloader

orestartingcompressor.Seeill. page9.

gagetheclutchbymovinglevertowardengine.

on unloaderpilotaftercompressorreaches

receivertanksafetyvalvesby handtomake

pressoroilgaugefailstoshowpressure,stop

necause.


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20/221

UKEE.WISCONSIN

compressor.

ewminutes,thenpushinmagnetoground

ceivertank.

asolineshut-offvalveiftheengine isto

f time.

SORFORSTORAGE

snot tobeusedfor aperiodoftime,it should

ectedplace.Toleaveequipmentoutdoors

willresultin materiallyshorteningitslife.

houldbefollowedwhentheunitit placedin

ore.Lubricationprecautionsshouldbe

sthereafter.

compressor,removeaircleanersandpourone-

chairintake,allowto runforapproxi-

p.

etelylubricatetheengineandair-compressor.

hedule".)

ompressorcrankcasesandrefillto fullmark

it aboutfiveminutestoinsureoil

gsystem,andleavedrain cockopen.

vingleverfromengine.

lines,pumpandcarbureter.

tancewillforminthegasolineifit isallowed

orcarburetor.Thisgumaccumulatesinthe

es,causingseriousdamage.

r one-halfcupofengineoilin eachcylinder

Thenreplacesparkplugsbut leavewires

Turnengineoverseveraltimestoworkoil

nderwalls.REPEATTHISOPERATI0NEVERY

eceiverallowinganywatertodrainandleave

reina warmdryplace.Makecertainbattery

fullychargedbeforestoring.

berechargedeverythirtydayswhileitis in


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21/221

NS*-gs

wornordamagedpartswhichmaylatercause

nitisin storageitisan excellenttime

erepainthasbeenremoved.

withlightgreaseto preventcorrosion.

SORTHATHASBEENINSTORAGE

pourabout2 tablespoonfulsofamixtureof

solineintoeachcylindertoinsure

ylinderwallswhenenginefirst starts.

ertainconnectionsaremadetoproper

eryisgroundedtopositiveterminal.

witchin"0FF"position(pushedin), crankengine

s beenblownoutofthespark plugholes.

nytightpiston ringsandwashtheold

andpistons.

essoroilpans andrefilltofull markwith

o LubricationChart.)

connectcablestoproperterminals.

leansoftwater.

n gasolineline,operatehandpriming

rburetorfloatchamber.

eceivertank.

runslowlyuntilsufficientlywarmedup

sor.

DITIONS

N

eratesuccessfullyinextremetemperatures

ments.

venthatthe engineandcompressorarefilled

eanwater.RadiatorandIntercoolerfins

mulateddirt,leaves,insectsetc.Cleanas

mPagel3.Besure fanbeltsareproperlyad-

ONS

ionsuggestions.

rytoinsureagainstaccumulationofdirt.KEEP


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22/221

KEE.WISCONSIN

ON

beoperatedin temperaturesof32 F.or

ngprecautions:

-gradegasolineforstarting,and keepsupply

emorevolatileportiondoesnotevaporate.

doftheday's operationtopreventmoisture

gradeoflubricatingoil intheengineand

ndaircleanersasspecifiedin the"Lubrication

uresare32 F.or.lower,thereisdangerof the

gsystem.To overcomethiscondition,use

nti-freezesolutionsshownbelow.

NSmus.QUARTCOOLINGSYSTEM)


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23/221

NS

pped.withanHi" diameter,springloaded,dou-

.

gnedtogivelongandcontinuedservicewith

etothei ntermittentor"shockloadscommon

,thefrictionsurfacesmaywearandcause

ytooverheatand damagetheclutchplates

hoccurswhiletheclutchis inoperationand

isautomaticallytakenupbythehea.vycoil

tthepressureplate.Whenthe clutch'isnew

on,withthethrowoutcollarassemblypulled

body,thepressurespringswill measureapprox-

tiondiscswearthesedimensionsincrease

ndedasfaraspossibleandcan notautomatic-

wear.Atthis pointtheclutchwillhaveto

akeuseoftheremaininglifeof thefriction

bymeansofa greasecupwhichshouldbe

tartofeachdayand/oreveryeightworkinghours.

asecupwithWB-2(Grease,generalpurposeNo. 2)

eratingtemperaturesof200 F.

ent

esnecessarypullouttheadjustinglockpinand

herightorclockwiseabouttwoanda half

ngs arecompressedtotheiroriginalheight

oftheclutch.CAUTION-Extremecareshould

tchis disengagedthedrivingplatesare"dis-

whenthe engineisidling.Whenthecollar as-

ngagetheclutch,thepressureplateagainst

uldcompressthesprings toapproximatelyl-5/l6".


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24/221

MILWAUKEE.WISCONSIN

VICEOPERATIONS

SSOR

sbeenruna shorttimeandis thoroughlywarmed

cylinderheadstudnutsfortightness.Stop

nutsa littleatatime untilallaretight.

altimestomakecertainthatall areuniformly

compressorbytheuseofoil bathairclean-

he intakepassestotheoil bowlwhereit

Astheair risestothecleaneroutletit

oilbathedscreenswherethefinedust isre-

screenworksbackdowntothe.bowl,itcarries

romtheair.Areliefvalveis providedto

omthe cylinderheadswhenthecompressor

ngeroftheoil beingforcedoutofthebowl.

ficientlyonlysolong asthebowlis free

Whendustaccumulatesinthebowl,thebowlmust

ndrefilledwithnewcleanoil oftherecommended

very8workinghoursstop compressorandcheck

t.(Thisoperationisadvisedatcloser

ustconditions.)Loosenthumbscrewandremove

Bowlmaynowbe cleanedbywipingwitha

evelofbead.Reliefvalvefeltshould be

foreaircleaneris reassembled.Everyl00

elementshouldbecleanedthoroughly.

becomesnecessaryitmustbe cleanedinlight

kerosenedueto possibilityofexplosioninair

ainstdirtenteringcompressor,inspectall

makingpertaintheyaretightandin good

dtopreventserioustroubleif airpressure

endedlimits.

PVALVE

airreceivertankandisset totripatl25*

trippedbyhanddaily topreventsticking.To

eofvalve.

VALVE

p tankoftheintercoolerperformsthesame

fetyvalveexceptitis settotripat 50/


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25/221

NS

trippedbyhanddaily orevery8hoursto pre-

ownlever onsideofvalve.

eceiverorintercoolersafetypop valves

sset fornormaloperatingpressure,itis an

machineshouldbestoppedImmediatelyandthe

TEM

systemis toregulateautomaticallytheoperat-

ssorwithinset limits.

ccomplishedinthefollowingmanner:When

"reachesapredeterminedmaximum(approximately

tunloadingvalve*B"totrip anaadmitair

dervalve"c",intercoolerreliefvalve"D"and

hereunloadingthecompressorbyholdingthein-

gtheintercoolerpressuretoatmosphereand

the carburetorbutterflyvalve.

"A"dropsto apredeterminedminimum,(approx-

otunloadingvalveagain tripsandallowsthe

r"C"intercoolerreliefvalve"D"and slow-

ssthroughcheckandbleedvalve"F".Checkand

tedsothatair fromtheslowdownassemblycan

mtheunloadersand intercoolerreliefvalve

ngatimedelayand allowingtheengineto

eedbeforethecompressorloadcomeson.

ADERPIL0T

eiver

erheads


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26/221

Y,MILWAUKEE.WISCONSIN


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27/221

NSp9u

(PEMELECTRICSWITCHC0.TYPEGl)

tomaticallyunloadsandloadsthecompressoron

rpressure.Theunloaderpilothas been

ndsealedat factory.Ifadjustmentbecomes

etentmechanic.

rlifthandunloaderlever"FF"(Seefigure)

nunloadedpositionrelievingcompressorof

compressorreachesnormalspeed,movehand

ingpositionasshown.

ocatedinthecylinderheads directlyoverthe

seoftheseunloadersisto holdthesuction

compressorwhendesiredreceiverpressureis

shedbyadmittingairfromthereceiverto the

eplungerdown.Whentheplungermovesdownit

ichholdthe valveopen.Whilethesuction

sioncannottakeplaceinthecylinders.

receiverdrops,airisreleasedfromthe unload-

ngersreturnsthe plungertoitsoriginal

pressortostartpumpingagain.

tedto veryclosetolerances.Thiseliminates

therpacking.Becauseoftheclosetolerances

dplungerit isnecessarytoservicethesuction

ssembly.

LVE

intercoolerbottomtank.Itconsistsof

ng.

oads,airfromthereceiveris admittedtothe

erforwarduntilholesinthe plungerand

gthe airintheintercoolerto escapeto

ereliefvalveby-passesair,it automatically

ver.

verdrops,air isreleasedfromtherelief

theplungertoitsnormal operatingposition.

N

sdesignedinsucha waythatitbecomesapartof

neendof thisassemblyisattachedtothe

erendto thecarburetorlever.

oads,airfromthereceiveris admittedtothe

ngtheplungeroutwardandincreasingthelength

hecarburetorleverisin theidleposition.

verdrops,the airisreleasedfromthe slowdown

edtoits"normaloperatingpositionbya spring,

rnto fullloadspeed.

E

econtrolairlinebetweenthe pilotunload-

rs,intercoolerreliefvalveandslowdown.


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28/221

MILWAUKEE.WISCONSIN

toallowtheair toflowfreelyintothe

iefvalveandslowdownwhenthecompressorun-

scapeofairfromtheunloadersand relief

allowairtoescaperapidlyfromthe slowdown

isappliedto theengine.

ustscrew"G"(PlateNo.23-l4-l)on sideof

oincreasetimedelayandoutwardto decrease

bestperformance.Donotchangeitunlessit


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29/221

NS*-13

han efficientbypass-typethermostatically

.

oughtheengineblock,cylinderheadand radi-

altypepump.The watertemperatureiscon-

ocatedinthe engineoutlettoradiatorhose

rtoflowthrough theradiatoruntiltheengine

temperature.Withthethermostatclosedthe

ughtheengine.

ooledandrequiresnospecialattention.

SLUDGE

by openingdraincockinlowerradiator

rblock(locatedbeneathcarburetor).Allow

ocks.

tha solutionof2poundsof ordinary

8U.S.gallonsof water(coolingsystem

apoff andrunengineuntilwateris hot,

ystemwithcleanwater.

er.

edbybentor cloggedradiatorfins.Ifthe

ecomeclogged,cleanthemwithanairhose.

nsbecarefulnotto injurethetubes,orbreak

and tubes.

larto theradiatorexceptairtravelsthrough

t requiresnointernalcleaningsbutfins

ribedin"RadiatorCore".

sshouldbe checkedfrequentlytoassuremain-

sion.Thetensioniscorrectwhenthe belts

effort,approximatleyl/2to3/4inchmidway

howninillustration).


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30/221

MILWAUKEE.WISCONSIN

of

ey.

ADJUSTING

ockLOCKSCREWS

anges

a-

'ct

proxi-

if

dat

mof

ethis

r

or

ng

wable.

an

ar.

TS

n

lley

utas

f

outCorrect"7"BeltTension

w-

same

koffthepulleys.Thebeltcannow beworked

des.

lacedwithanewonewhenit becomessoaked

omessobadlywornthat itdoesnotdrivethe

hen replacingthebelt,reversetheprocedure

gtheFanBelts"exceptthebeltcanbe startedon

nd,by slowlycrankingtheengine,thebelt

n.

duetowear afterconsiderableuse.Ifthis

erPump",MaintenanceSection"Cooling".


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31/221

NSPg '*

tofthe ElectricalSystem,disconnectthe

otreconnectthiscableuntilall the

ade.Thiswillavoidshortcircuitingand

the electricalunits.

inalsarecleanandsecurelyfastened.Make

nwiresanywherein theelectricalcircuit.

be-Union#l34.

tteryitisimportantthat theelectrolytebe

alltimes.Thewaterlevel inallcells

tnotover5/8"abovethetop oftheseparators.

theelectrolyteleaksthroughtheventplugs.

rsandplates maybedamagedduetodryingand

rof knownpurityshouldbeaddedtoelectro-

mostnaturalwaterscan causesevereinjury

ciencyandmateriallyshortenthelifeof the

henthetemperaturefallsto 32 F.,water

telybeforethestartof arun.Thiswillpermit

oroughlymixthewaterand electrolyteandwill

romfreezing.

tart ofeachdaytomaintainthewaterlevel'

vityevery64hours.Thespecificgravity

etestedwith areliablehydrometer.All

ategravityreadingofl.285when fullycharged

ydischarged.SeeChartforthevariationsof

erature.

smustbekeptcleanand tight.Corroded

bywashinginpure ammoniaorasaturated

te.Cleaningsolutionmustberinsedawaywith

minalsisnotadvisableduetodangerof damaging

minalshavebeencleanedalight coatingof

ose)willrestricttheformationofthiscorrosion.

tenedsecurelytocarrierframe.

ha high-tensionAmericanBoschMagneto

gnedandbuiltin accordancewiththelatest

eriorfromthe standpointofperformance,

operation.


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32/221

KEE.WISCONSIN

04


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33/221

ONS


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34/221

UKEE.WISCONSIN

Magneto

ng

g

t

t

thefollowingparagraphsareillustratedin the

wings.

magnetosemploytheinductionprincipleof

ilwindings(l0)beingstationaryandmagnet

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35/221

N'S

atedpoleshoes(37).Thecondenser(48;and

ary.Labrynthtypeventilators(3l)are

he magnetohousing(l).Magnetrotorball

h-temperatureAmericanBoschU.S.508grease,

antforat leastoneyear.UseWB-2(Grease,

edistributorgearbearing (l6)isofbronze,

tyearlyintervals.Asinglecasting(l),

overedbythedistributorplate(l3),encloses

ionwindow(20)inthedistributorplate (l3)

to

ew


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36/221

MILWAUKEE.WISCONSIN

ibutorgear(l9) facilitatetimingthemag-

usedwiththis magnetorepresentsan

.Thecusnionedactionofthecouplingminimizes

etallicclickproducedwithpreviousdesigns.

4l)issaturatedwith MobilegreaseNo.2

be re-lubricatedevery5l2hourswith0E-30(oil,

aringsarepackedwithAmericanBoschU.S.508

ckedwithWB-2(Grease,generalpurposeNo.2)

mecaremustbeexercisedsothat contactpoints

ease.When aperiodicrepairoftheengine is

shouldbecompletelycheckedandoverhauledif

tmechanic.Seepage54.

ftercarefultestsas bestsuitedforthis

No.6Comm.orAC No.83Spec,andshouldbe

full setofeithertype.

y256workinghours,oroftenerif necessary,for

egapsbetweenelectrodes.Agapof.025"to

datalltimes.When makingthisadjustment,

trode.Neverbendthecenterelectrodeasit

.Ifthegap betweenelectrodesistoogreat,due

ngoff theends,theenginewill misfireand

odofcleaningsparkplugsissand-blasting.Never

orwithanythingwhichwill scratchthe

hedporcelainallowscarbonanddirtto accumu-

eremovedforanyreason,notethepositionof

o.(Wiringdiagram(page53)showscorrectwiring.)

umclearancebetweenthesparkplugcablesand

tainingthisclearance,snorting-outthespark

the cablewillbeawayfromtheextremeheat

ableisallowedtotouchthecylinderhead,

sooncausetherubberto becomesoftandthe

374GENERATOR

4Generatorisa2pole,third brush,sealedtype

thedriveend andabronzebushingin the

rtthearmatureandis usedin"connectionwitha

Model5889.


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37/221

NS

Generator

ouldbe suppliedwith8tol0 dropsof0E(oil,

every64hours.Donotoil excessively.Never

ndshouldberemovedandthecommutatorand

arintervals.Ifthe commutatorisdirty,it

0sandpaper.Blowoutdust.

ERYCL0THT0CLEMC0MMUTAT0R.

,outof round,orhashighmica,thegenerator

gineandreferredto acompetentmechanic.

placed.Theycanbeseatedwith abrushseating

oneis anabrasivematerialwhich,held

mutator,carriesunderandseatsthebrushesin

st.

ERYCL0TH.

rmaybe adjustedbymovingthethirdbrush in

otati-onto

rtheoutput,

ustedatthe

eswithvoltage,

ammeteranda

he

put

e

s


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38/221

MILWAUKEE.WISCONSIN

mvariableresistanceintothecircuitandcut

ervoltageis obtained.NEVERSET0UTPUT

GASTHISWILLRESULTINGENERAT0RFAILURE.N0TE:

eldis directlygroundedduringtheabove

hatis,eitherthevoltagecontrolpointsshould

shouldbeusedtotemporarilygroundthe

sthebatteryfromdischargingbackthroughthe

nginehasstoppedoris notrunningfastenough

e.It isentirelyautomaticinitsactiorij

onalinspectiontoseethat thecontactpoints

CRANKINGMOT0R

00CrankingMotorisa6-volt,6 poleunitwith

er,commutatoranddriveends,and isprovided

nd,toguardagainstthe entranceofdust.The

rive.Specificationsareasfollows:

gdriveend.

0ounces.

0Amperesat5.0volts

at500 amperesat3.0volts

CrankingMotor


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39/221

NS

TENANCE

ncemaybedividedintotwosections,normal

ssurecontinuednormaloperationofthecranking

repairsofan inoperativecrankingmotor.

ringsareallofthe oillesstype,nolubrica-

ed.A fewdropsof0E-l0(oil,engineSAEl0)

ngduring thedisassembly-assemblyprocedure.

dshouldberemovedandthecommutatorand

arintervals.Ifthe commutatorisdirty,it

andpaper.Blowout.dust.Neveruseemerycloth

ecommutatorisrough,outof round,orhas

erredtoacompetentmechanic.Wornbrushes

heswearrapidly,checkforexcessivebrush

essorhigh micaonthecommutator.

LYOPERATINGCRANKINGM0TOR

not developratedtorqueandcrankstheengine

thebattery,batteryterminalsandconnections,

ded,frayed,orbrokencablesshouldbere-

onnectionscorrected.Thecrankingmotor

forburnedcontactsandtheswitchcontacts

essary.

movethecoverbandof thecrankingmotor

dcommutator.Thebrushesshouldformgood

ushspringtension.Adirty commutatorcanbe

00sandpaperheldagainstthecommutatorwith

motoroperates.

ERYCL0THT0CLEANCOMMUTAT0R.

rty,or burned,orhashighmica,thecrank-

edandreferredto acompetentmechanictotake

a lathe.

9MAGNETICSWITCH

59MagneticSwitchdoesnotrequireservicing

callytomakesurethe mountingandconnections

ition.

AL

G

onThruMagneticSwitch


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40/221

UKEE.WISCONSIN

OPERATIONS

n runashorttimeand isthoroughlywannedup,

ecylinderstudnutsfortightness.Stopthe

centercylinderheadstudnut,andthenpro-

uttingan equaltensiononallthe nuts.Go

sto makecertainthatallareuniformlytight

ylinderHeadNuts

enginebyanoil bathaircleaner.Theair

assestothe oilbowlwhereitgoes through

s tothecleaneroutletit passesthrough

enswherethefinedustis removed.Asthe

ackdownto thebowl,itcarrieswithit the

The air

lyonly

rom

thisdust

hebowl

nedandre-

tyie

very

engine

ulateddust.

tclos-

edusty

gnutandremove

ngoilto levelofbead.Shouldfilterelement

an0E(oil, engine)crankcasegradeandallowto

assembling.CAUTION.DONOTCLEANCOMPRESSOR

NEDUECOAPOSSIBILITYOFANEXPLOSIONINAIRRE-

ainstdirtenteringthe engineoraircompressor

nsandgaskets,makingcertaintheyaretight.

eanerand theconnectionsbetweenthemani-

e engineshouldbetight.Allgasketsmust

e boltsshouldbedrawnup tight.


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41/221

NS

pends

ngcircu-

utepar-

entua11y

crankcase

f opera-

dergoes

1udge,acids,

armfu1by-

teristo

dirtand

romthe

eseinjuri-

circu1ated

1teris

e e1e-

hese

nces.

messaturated

erre-

fromthe

and

aced.The

ntrep1ace-

ponoperat-

yhundred

ankcase

emoved

anindica-

rep1aced.

ainp1ug.(1)

-c1ockwisedirectiontoremovecover.(3)

usinghand1e(5)ontop ofe1ement.

nab1etypeandmustberep1aced.)

ewcovergasket(6)makingcertainhand1eend

ertaingasketisingoodconditionandturn

ction,unti1secure,HANDTIGHT.

kfor1eaks.

TMENT

everyfourhundredworkinghoursof'operationand

sary.Ac1earanceof.015ofaninchis neces-

endsandrockerarmtappetswhenva1vesare

m- .018"whenengineisco1d.

c1earance,makecertainmagnetogroundswitch

atingany dangerofaccidenta11ystarting

eadcover.

m#1cy1inder.(Cy1indernearestradiator.)

kp1ugopeningandcrankengine s1ow1yunti1an

e1t.Pressureindicates#1pistonis movinR

ofcompressionstroke.


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42/221

UKEE.WISCONSIN

on

cover.Checktoseethatcylinderhead

ditionand makesanoil-tightsealwith

egasketifnecessary.

useanaccurate

valve


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43/221

NS

carburetor(ZenithModel62Al0)is (l)todis-

ntoffuelinto theairstreamenteringtheengine;

(3)tomakeahomogenousair-fuelmixture.

onstantforall speedsandloads.Thecar-

givethebestoperatingperformanceforall

rhasbeencalibratedtometerthecorrect

operationthroughoutoperatingrange;thefunc-

ot extendbeyondtheproportionatemixingof

unt

erations.TheMainJet Adjustment(8)reduces

owarditsseat.0rdinarily themainjetad-

erit istwoturnsopen.

enthe throttletoapproximatelyl/4open.

wise,shuttingoffthefueluntilthe engine

oleanmixture.Nowopenthe adjustmentuntil

esduetotoo muchfuel.Theadjustmentshould

aybetweenthesetwoextremes.

mconsistsoftheMainDischargeJet(4)and the

fuelfromtheMainJet (2)iscontrolledby

)andthe sizeoftheMain DischargeJet(4).

oughtheMainDischargeJetmaybe madericher

eof theMainDischargeJetor bydecreasing

themixturemaybemadeleanerby eitherde-

ainDischargeJetorbyincreasingthe sizeof

oftheI dlingJet(6)and theIdleAdjusting

6)receivesitsfuelfromthe mainJet(2)

uelismeteredthroughthe IdlingJet(6) and

admitted,frombehindtheVenturi(l),through

tingNeedle(7)controlsthe amountofair

ng System.TheIdlingSystemfunctionsonly

At thesespeeds,theThrottlePlateisalmost

ystrongsuctionpasttheedgeor theThrottle

hemixtureoffuel andairfromtheIdling Jet

heair streamthroughthePrimingPlug.


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44/221

UKEE.WISCONSIN

Pump


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45/221

NS

S

fteccentricactuatestherockerarm,which

hragmandpullrodassemblydownwardagainst

ewhichcreatesavacuuminthepumpchamber.

pump,fuelfromthetankentersthroughthe

l,passesthroughthe screenandonthrough

mpchamber.

ragm

d

iaphragmspring

hepumpchamber

hecarburetor.

sfilled,the floatinthecarburetorwillshut

reatingapressure inthepumpchamber.This

ragmdownwardagainstthespring pressure

ativeinthe downwardpositionuntilthecar-

elandthe needlevalveopens.Therockerarm

rposeofkeepingtherockerarminconstant

t.

MINORREPAIRS

ckoffuelin thecarburetororthecarburetor

andneedlevalvefor properfunctioning.

ks,kinks orobstructions.

BURET0R

nallpipeconnec-

gasolinetank.

y,replacing

sary.

rtainthatcork

whenreassembling.

alves.Ifvalves

eplacethem.Exam-

rtainthereare

ventproperseat-

nvalvecham-

ugsandsprings

sarearoundthe

ugsproperly.

veplugsif neces-


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46/221

UKEE.WISCONSIN

FDIAPHRAGM

satpipefittingsthus allowingfueltorun

ppearto originatethere.Donotuse

veondiaphragm.


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47/221

NS


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48/221

UKEE.WISCONSIN

CA.ON6UI.

F.M.,

donplatesonengineandcompressorcranlcases.

HOOD

HOOD

WRI

4

I

E251

urs,

d)

rpose

pose


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49/221

NS

E

ONSFOR

F.M.,GASOLINE

glubricationinstructionsfortheCompressor,

eRoimodell05GA),are publishedforthein-

f.allconcerned,andsupersedeallpreviousin-

equipmentinaccordancewiththelatestin-

gineerFieldServiceBulletins.Referenceis

ctionsection(EFSBL-l000-A)foradditional

ndtotheProductGuidesection(EFSBL-l000-F)

nts.

ubricationinstructionsforallpointstobe

icationGuidepublishedherein,whichspecifies

uiredandthe intervalsatwhichtheyaretobe

hthisinformationisreproducedarel0xl5in.

chpieceofequipment.

DS-a.Reports-Iflubricationinstructionsare

bricantsused,andsatisfactoryresultsarenot

adeto theengineerofficerresponsiblefor

uipment.

cordoflubricationservicingforthis equip-

ricationCheckCard.

EFSBL-l0l3andEFSBL-l0l4coveringlubrication

DLUBRICANTSTOBEUSED

EMPERATURE

LubricationandServiceabove+90F.,refertoEFSB

applyingthelubricantgun.

atedarefor normalservice.Forextremecon-

w,anddust,changeCrankcaseoilandlubricate

UnitandCompressor)-Every8 hours,remove,

owerbeadmarkwith0E.Every8 to256hours.


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50/221

MILWAUKEE.WISCONSIN

ons,removeentireassemblyandclean.CAUTI0N:

rcleanersingasoline orkeroseneasvaporsmay

ausingan explosion.Pourlpt.0Ethrough

eair cleanerandairpipes.Keepall con-

ours,check;andfilltolevel. Drainonlywnen

m.RefilltoFULLmarkongage.SeeTable.CAU-

eorcompressor,besurepressuregage indicates

gedoperationabovel00F.,0ESAE50 may

owerUnitCrankcaseBreather).Every8hours,

wash.0ilvalvechamberbreatherwith0E.

urs,drain dirtandwater.Every256hours,

erelement.Usenewcovergasket.Refill

ngage.CAUTI0N:Whenrunningengine,besure

iscirculating.

urs,removedistributorcoverandlubricatecam

gly.Every2048 hours,remove,cleanandre-

andcoatdistributorgearteethwith WB.

64hours, lubricatethrottlecrossshaft,

gewith0E.

LUBRICATION-Fan,Governor,PowerUnitStarter,

arings.

cklevelofwaterinbattery.Adddistilled,

aterto levelof3/8in.abovetop ofseparators.

nuglyandcoatlightlywithCG.

rmodel25)-Every2 hoursofcontinuousopera-

lugfromend ofbackheadhandleandfillwith

eoilcontrolfelt onsideofhandle,wash,dry

nismbypouringasmallamountof cleansingsolu-

machineafewminutesandpoura small

airinlet.

ormodel75)-Every 2hoursofcontinuousoper-

plugfromside ofcylinderandfillwithOE.

controlplugsand feltsfromrearofcylinder,

es andcylinderwithcompressedairbefore

lamountofcleaningsolutioninto airinlet,

nutesandadda smallamountof0E,SAEl0.If

ers,fill beforeoperationwith0E,SAEl0,and

del4l2)- Every4hours,inject0E,SAEl0,through

4hours,washtool andthoroughlyoilwith0E,

E(Thormodel62)-Every4 hours,lubricatevalve

rhandlereducer,with0E,SAEl0.Every 8

ttingwithCG.Every256hours,remove

htool,andfillcrankcaseandgearcasel/3 full

wmodel2l27)-Every8hours,lubricaterotor


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51/221

NSpge33

orwithCGor throughoilerswith0E.Every4

reservoir,locatedattopfrontofhandle,

th0E,SAEl0.Every64 hours,flushmotor

ringasmall quantityof0Eintoair inlet.Re-

otoruntiloil isdrivenoutexhaustport.Check

eductiongear casethroughplugintopfront

eloftopofwormgear withG0.Everyl024

.

ER(Ingersol-Randmodel6CND)-Beforeoperationand

peration,applyasmallquantityof 0E,SAEl0,

tbase ofhandle.CAUTI0N:Donotlubricate

4 hours,disassemblehoseconnectionstrainer,

ice"Timberhog")-(Drivenend)Keepoiltank

fillercaptightunlessusing gravityfeed.

e lubricatedfromtankbyairpressureorgravity.

gunconnectioninrear oftailstockwithpump

oiltankbreatherknobonfillercap before

eto"0N"positionandadjustpetcockforrate

y8 hours,fillrotorwith0E,SAE l0.Every

onCGthroughgovernorfillplugonside ofmotor

ompletely.Every256hours,fillgear box

bove+320F.,andG0below+320F.Keepair

lean.

erusingtool,cleanandcoatmachinedsurfaces


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52/221PublicDomain,Google-digitized

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53/221

ONS

utchCo.

isc

h-pounds

-2-llt"

HCLUTCHDISENGAGED

eclutchmayrequireadjustmenttobringit

clutchwears,the springsl532takingup

heirexpansion.Whenthisoccurstheclutch

ock-pinl538 androtateadjustingringl536

-l/2turnsor untilthepressurespringsare

alheightofl-5/l6".(This measurementis

gaged"position- levertowardsengine).

abovealsoNo,2S-23C,Page37)

antleditisnecessaryto loosenengineatits

wardtoeffectclearance.NOTE:Rearofengine

looseningit toprevent"jack-knifing"when

pressor.

discsonly,areto bereplaced,disengage

removepressure.0lddiscs canbelifted

erted,CAUTI0N:Frictiondiscsarenumberedand

berscorrespondingalsogearteethof bothrows

wheel.

tis tobedisassembledproceedasfollows:

erisin "disengaged"position.

04andnutl005fromcompressorcrankshaft,and

tobeserviceditis necessarytoremove

,and removecone.

emblyloosenandremovelockringl536. With

ltsl533andspringsl532,Entire unitcan


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54/221

.MILWAUKEE.WISCONSIN

inorderremoved.

olts makingcertainboltsareseated

utdonotmakefinaladjustment.

ndclutchlever,keyingin place.

oncrankshaft,keyinginplace,tightennut

onand fastentocompressor.

stasdescribedin "Adjustment"

mpressoristobe idleforanylengthof time,

gaged"position.


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55/221

ONS

HROUGHCOMPRESSOR

OOOI


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56/221

,MILWAUKEE.WISCONSIN


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57/221

ONS*-g39

PRESSOR

3/4"

cleanersareattachedtolow pressurecylinder

n connections.Airpassesthroughtheopening

ghthebath ofoilandupwardthroughthe filter

movedanddrainsbackintothebowlcleansing

passeson downthroughthecleanerunitand

enterthecylinderhead.Avalvehasbeen

hidhreturns tothecleanerwhenthecompres-

he atmospherewithoutpassingthroughtheoil

dtolevelofbead withcleanengineoil

brication11.Periodically,dependingupon

reunitshouldbedisassembledandcleanedthor-

otallowfeltvalvewasherto becomesaturated

mpressoraircleanersingasolineor fueloil

ofanexplosionin airreceivertank.

saresplashlubricated.

peredrollermainbearings l003andconnect-

of aplungertypeoilpumpll2l drivendirectly

tonpinsandbushings aresplashlubricated.

tions"2S-23C,"2S-24C")

haspecialconnectingrodll30 offthecrank-

screenl48l whichstrainsoutthelargerfor-

hepumpplungerll2l totheoilpressure

oftheoil entersthedrilledpassagesinthe

spastthe closefittingcircularbafflewhich

mberfromreartaperedrollerbearing,lubrica-

ofitpassesthroughthe circularbafflel008

andrive pulleyhub,tobereturnedto the

sregulatedbya pressurereliefvalvell45

ecrankcase.Aspecialpipeplugl002witha

rontcrankcheekspraysoilintothe front

screenshould becleanedofsludgeandforeign

panl470is removed.

eltll97,fandrivepulleynut l0ll,andlockwasher

eyl009,beingcarefulnotto damageoilseal.

gconnectionll39tooil panl470.Disconnectoil

odyatelbow.Removecapscrewsandstudnut"


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58/221

MILWAUKEE.WISCONSIN

kshaft5.0i1Pump

ValveBody6.0i1PressureRelief

-

ve

e

or.

body

d

ing

antledfromplungerassemblyitshouldbe connected

rtainpinll3l isinplaceanddoes notextend

ftheplunger assembly.CAUTI0N;Dipplungerin

pumpbody.Assemblecheckvalveassemblyto

mpressormakingcertainconnectingrodisIn

loilsealin body.N0TE:Itisrecommendedthat

owsslightestirregularities.CAUTI0N;When

ottodriveit beyondoutsidefaceofpump

lsealmustbemaintainedforoil passage.In-

mpbodytocompressorhand-tight,setdowels

rews.Installfandrivepulley,nut andlockin

ndinstallintercoolerfanbelt.

byremovingintercoolerandpressurecontrol

utsandliftingcylinderheadl249assemblyoff.

head,makecertainthatthesurfacesofthe

erethegasketl3l0rests,are absolutelyclean.It

4 1256

LY


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59/221

ONSPage4i

ghtenthecylinderheadwheneveritis replac-

efullytopreventdamagetothegasketbetween

ylinder.Nutsshould bedrawndownsnug

adstudnutstightenedwhencompressoris cold,

pressorishot.

vetobe removedtoservicethevalves.

ethecircularplatetypeandare mountedin

sandguides(bumpers)for quickreplacement

no physicaldifferencebetweensuctionand

prings,orseats.

LVEASSEMBLYFROMCYLINDERHEAD:

ebylooseningl/4" tubenut;

rewlocknutsseveralturns;

rewsl293severalturns;

ashersthathold suctionvalvecovertocylinder

290beingcarefulthat unloaderplungerddesnot

sitsoperationdependson veryclosefit;

ssemblyclampl285;

ssembly.

VALVEASSEMBLYFR0MCYLINDERHEAD:

knutseveralturns;

0lseveralturns;

asherswhich"holddischargevalvecovertocyl-

ecoverl300;

eclampl295;

eassembly;

yhasthebumperl257mountedon bottomandis

shrodl26land springl260whichwillholdthe

atwhencompressorisunloaded.

mblyhasthebumperl279mountedontop.

onanddischargevalveassembliesisapprox-

entakenapartforcloseinspectionandcleaning,

e seatsandthevalvesarenot marred.When

ntthatthe valveplatesl254,l255,l276,l277

onas.beforebecausethe valvebecomestighter

hatsprings l256,l278arein anuprightposi-

thepocketsinthe bumper.Seethatthe

checkedbydepressingthemwithascrewdriver

kintotheir seat.Damagedpartsmustbere-

eheart ofthecompressorandveryserious

nparts ofthevalveassemblyfallsontop r\t


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ALVEASSEMBLYINCYLINDERHEAP:

rgasketl252rests properlyonshoulderin

emblyandrotatebackandforth toinsurethat

emblyclampl285androtatebackandforth to

lyonsuctionvalve;

er-asbestosgasketl302restsproperlyoncy-

valvecover,l290makingsurethatthreenodes

yengagenotchesinclampl285,providedso

mpoverstaves;

and washerswhichholdsuctionvalvecoverl290

enthemalternatelyto preventcoverfrom

alternatelytoinsureequalizedclampingof

crews;

tsareingoodconditionifdamaged,replace.

GEVALVEASSEMBLYINCYLINDFRHEAD

ergasketl252restsproperlyon shoulderin

ssemblyandrotatebackandforth toinsure

asket;

ampl295inposition;

er-asbestosgasketl302restsproperlyoncylinder

gevalvecoverl300inposition;

and washerswhichholddischargevalvecover

enthemalternatelyto preventcoverfrom

rew;

tsareingoodconditionifdamaged,replace.

overshasbeencompleted,andcompressorhas

rature,setscrewsl293,l30lshouldberechecked

fterparagraph"Cylinder")

.02l"

o.0065"

024"

o.0075"

n....0l0"to.020

025"

n0l0"to.020"

8"


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61/221

ONS

inder)~4-5/l6"

nders)5-l/4"

"to.002"

ONASSEMBLY

030,l060toconnectingrod,l020placeoil baffle

lacerod inpistonandslide pistonpinl033,

,l06l.Tightenclampbolt inconnectingrod

Neverattempttoremovepistonpin l033,l062

eremovingtheclampscrew.Fit;pistonringsl036,

dassembletopistonmakingcertainringsare

e staggered.Note:Thetwotopringsl037,l066

mustbeassembledto pistonwiththegroovesdown.

replacingcylinder.

gsNos. 2S-23Cand2S-24C,Pages37and38.

pecialnoteafterparagraph"Cylinder")

ntertocenter....l2-l/2"

"

t-steelback

32"

e0025"to.004"

el,heattreated

8 x3-3A>"


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027arenotadjustableandwhen clearancebecomes

ecessary.Connectingrodsl020shouldbefree

hpistonsl 030,l060.Connectingrodsandcaps

beassembledwithnumberscorresponding.Inthe

mberedsidesofconnectingrodsshouldbeplaced

akesnodifferencewhichwaytheyfacein the

eninstallingbearingsl027be surebearing

eabsolutelyclean,smooth,andfreefromoil.

ojectionwhichpreventsturningandshouldbeas-

gmillednotchinrod andcap.CAUTI0N:Donot

onot fileconnectingrodorconnectingrodcap

tiscorrectwhennutsl024aretight andthe

dbyhand.

on2S-24C,Page38)

eremovedin ordertoservicerings,piston,

ALNOTE:Uponreplacing.boltcylinderdowntight

nin T.D.C.positionisfrom.005* belowto

Spacinggaskets"asrequired,mustbe in-

eflange,tomaintainthisclearance"!

thConnectingBods&Pistons


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ONSPge45

noteafterparagraph"Cylinders")

tion.Yes

.3.500"

n2S-23C,Page37)

itis necessarytoremovecompressorfromthe

0anddisconnectconnectingrods.Removeclutch

ngparts,frontbearingcoverl092with shims.

eltll97andfandrivepulley l009,beingcareful

3.Removeoilpumpbodyll20withconnection,

dowells.Blockcrankshaftuptosupportweight

moverearbearingretainerl085using extreme

ainbearing l003.Crankshaftmaynowberemoved

ankcase.

openinginrearof crankcase,blockuptohold

nbearing retainerl085.Removeblocks.As-

rl092withshims(see paragraph"0ilSeals")and

utlinedinparagraph"Bearings".Installoilpump

lpumpconnectingrodll30 isinproperposi-

ngdowels.Replacefandrivepulleyl009,mak-

ce,andoilsealll33 isnotdamaged.Tighten

kin place.

43-632

unkontocrankshaft;byheatingin oiltonot

ainbearingcupis pressedintobearingretainer

pushfitincrankcasel075.Adjustmentis

ovingshimsunderbearingcoverl092. Correct

03"to .006"ascheckedbyindicatorandmust

ssedintohousingsandmustbe installedwith

n.CAUTI0N:Donotpress oilsealsin beyond

n passagesbehindoilsealsmustremainopen.

nstalledinretainer,installationtocompressor

ametalsleeve.Insertsleeveinto oilseal

sleeveovercrankshaft.AfterretainerisJ.n

oilsealand slipretainer,sealandsleeveover

sinplaceremovesleeve.Sleevecanbemade

bentintoposition.Rearoilseal ll33requires

uctions.CAUTI0N:Makecertainsealsare


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64/221

UKEE.WISCONSIN

TEM(See"DiagramofPressureControlSystem"Pagel0)

itshouldberemovedfromthesystemfor

mbottomandremovescreensandfelt,cleanwith

TI0N:Makecertainscreensarenotdamagedin

ratedwith oil.


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65/221

ONS

:

cSwitchCo.

Pilot isdesignedforusein aircompressors,

evices,tomaintaincloseregulationofreceiver

unloadsorloadsthecompressoronrise or

dedwithl/4"FemaleI.P.T.tapping

nectiontoairreceiver.

earview)isconnectedtocheckandbleedvalve

gs.CAUTI0N:Cleanall tubingand.fittings

tingtopreventpipescale,filings,metalchips,

mreachingvalves.

roximatelyl00lbs.Loadingpressureapproxi-

asonthesepressuresmustbechangedtheymay

justingnut ^AA"(seefrontopenview)to

nloadingpressure;turntoleft (counter-

ding-pressure.Thepressureatwhichthecom-

orloweredacorrespondingamount.

NT:

twhichthecontrolunloadsor loadsthecom-

ndshouldnotbechanged.Iffor anyreasor


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66/221


arythedifferentia1pressure,itmaybe reset

1ve"BB".Loosen1ocknuts"CC"andraiseva1ve

(1ower1oadingpressure);1owerva1ve"BB*to

1oadingpressure).Note:Differentia1adjust-

gpressure,un1oadingpressureremainsconstant.

mentanddifferentia1shou1dneverbec1oser

g"mayresu1t.

1-10,11)ate1bows.Un1esstheyaretobe

nectionsatdiaphragmcastingas1theyare

venut(RA-172)andspringRA-151,Removeex-

ffva1vep1ungerrodRAB-805,andtrip1ever

andbottomcenterscrewsfromdiaphragmhousing.

mb1ywithconveyortubesandmainarmassemb1y

asaunit.If diaphragmon1yistobe rep1aced,

tisnot required.Removeeightotherscrews

ndseparatethetwoparts,beingcarefu1pl longer

ecome1ost.Diaphragmisnowaccessib1e.

instructionsbeforeproceedingwithassemb1y.

800mayberemovedbydrivingoutpivotpin. Kick-

00,mayberemovedbyremoving1ower1ocknutand

meG1-801.Un1oaderva1veassemb1yG1-805may

withdrawing3screwsho1dingthebracket.Re-

twi11a11owva1veassemb1ytobeserviced.Make

isnot 1ost.N0TE:Serviceonotherpartsof

ddisassemb1yisobviousuponinspection.Be-

tsnecessaryinassemb1ingva1veassemb1yG1-805

edon1yas assemb1ies.Ifservicebecomes

stberep1aced.

R110on1owercasting,thenp1acep1ungerdisc

wi11fit throughcenterho1eofupperdia-

heeightscrews(omittingthetopand bottom

andeven1y.P1acemainarmin channe1onback

gandinsertpivotpin inp1ace.Assemb1ekick-

ainarm andconnectextensionspring.Fasten

mainframewith3 screws.Screwun1oaderp1ate

and p1acehandun1oaderp1ateonthisstudand

acebushingthroughhandun1oaderhand1eand

1everand covermountingscrewfrombackof

hingoverscrew,andp1acefe1twasherbetween

mountoverbushing.Insta111ocknut,then

inp1ace.Attachdiaphragmhousingandmainarm

1ing2screwsinho1es1eft emptybefore.(1-1/2"

ewin bottom.)Insta11mainspringandtighten

o1dassemb1yin p1ace.Insta11,trip1ever

erpin,pointedend,into un1oaderva1ve

acketasi11ustratedinRear ViewBand1ockin

1vesothereis a1itt1ec1earancebetween

ungerpinwhenswitchisin 1oadedposition,(trip

e1bowsmakingcertainconnectionsareairtight.

tsanddifferentia1adjustmentsasdescribed.

nofthecompressordependsuponthecorrect

rpi1ot.Fo11owdirectionscarefu11y.


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67/221

ONS

DOWNASSEMBLY

2lisdesignedin suchawaythatit becomesa

rrod 320.0neendofthis assemblyisattached

he otherendtothe carburetorlever.Whenthe

omthereceiverisadmittedtothe slowdownas-

er323outwardandincreasingthelengthof the

uretorlever332 isinthe idleposition.When

opsthe airisreleasedfromthe slowdownand

itsnormalpositionbya spring322,allowing

operatingspeed.

tshouldbeoiled andperiodicallytheentire

andcleanedthoroughly.Removeflexiblehose

nbody32lfromnut327. Plunger323,leather

are nowexposedforservice.Reassembleplunger,

nd screwbodyintonut.Reconnectflexibleairhose.

e1ll."IntercoolerandReliefValveAssembly")

pValvel580isset totripat 50lbs.andmustnot

omesnecessarytheentirevalvemustbereplac-

leanandfree ofcorrosion,triplevermust

oinsureitsoperation.

lveissimilarto intercoolerpopvalveexcept

ssure.Nomaintenanceisrequiredoneither

E

ressurecontroll inebetweentheunloader

heslowdownassemblyallowsthe airtoflow

tercoolerreliefvalvebutrestrictsthe flow

tercoolerreliefvalve.At thesametimeit

yfromthe slowdownassemblywhenthecom-

dingatimedelaywhichallowsengine togather

pplied.

ustscrewonsideof valve,turninginwardto

ecrease.Thisisset correctlyatfactoryand

essabsolutelyneaessary.


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68/221

UKEE.WISCONSIN

FVALVEASSEMBLY

VE:

ylinder,plungerl575,andspring l576,is

e intercoolerl570.Whenthecompressorun-

rforcestheplunger backuntilportsareun-

ntercoolerisreleasedtoatmosphere,atthe

ate>outofintercooler.Thevalveiseasilydis-

ervice.DISASSEMBLY:Disconnectairlineand

dyl575beingcarefulnot tolosegasketl577.

pringl576andplunger,screwbodyinto capand


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69/221

ONS

HART

pressuredis-

valvenot

gproperlyor

oken,

olerrelief

oning

roperly.

ndex-

for

rts

any

nd

ves.

e

moveandexaminevalves.

Replace

ove

nd


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70/221

ONSp^"

Tube

..................VBelt

sionAdjustment...:Turnoneflangeof

lonsperminute

circulateswaterinclosedsystembetween

dandradiator.Temperatureiscontrolledby

locatedinengineoutlethoseconnection.Path

engineiscoldis fromradiatorbottomup

gineblock,uptocylinderheadand outinto

mostatandby-passedbackintopump.Anywater

adeup fromsupplyatbottomofradiator.

mupperiodpreventsformationofsteam

opensatl60 andwhenopen,theby-passis

tedthruthe radiator.Temperaturecontrols

whichcontrolsamountofwaterrecirculated

ountofcoolerwateraddedfrom radiator.

mblyaresecuredto fanhubbyfourcapscrews.

erpumpshaftbymeansofa pin.Impelloris

shaft.Waterpumpshaftis mountedinbronze

mplishedbymeansofacarbonsealingwasher

derand arubberbellowsandspringwhich

rmalwearpreventingleakage.Duetowearafter

umpmayleakandwhenthisoccursthepump must

edandcarbonsealingwasherandbellowsreplaced.

efollowingstepsshouldbefollowed:

gsystem.

elt andremove.

onsatwaterpump.

dingwaterpumptowaterpumpbracketandremove

stration"WaterPumpAssembly".

b.

hub(480)offof shaft.

out ofpump.

ut ofimpellor(478).

kecertainthatdrivinglugsof carbonsealare

r beforepressingimpelloronshaft.

ftwithimpellorintopumpbody itwillbe

ng(472) withbushingandflatsurfaceof

medtosize.However,thebores shouldbe

einstalled.Frontbushingshouldbe.753".

78".Runningclearanceforbothis .00l5to

ndbracketshouldbereplacedwheneverpumpJ


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71/221

MILWAUKEE.WISCONSIN


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72/221

TIONS


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73/221

UKEE.WISCONSIN

pringfield,Mass.ModelMJC4C-334

lCA2A

Magneto

nignitionsparkonlyatcertaindefinitepoints

netrotor(6),mustbeconnectedandtimedto

nerthatthesparkis alwaysavailableatthe

ecylinder.

nkuntilthe pistonincylinderNo.lmoves

onstroketothelocationwhereignitionis to

ings.

plinguntiltheline (36)onthedistributor

servationwindow(20).Thisoperation

gthe impulsecouplingintheopposite

PublicDomain,

Google-d

igitized

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_use#pd-g

oogle


74/221

ONS

to

in whichitwillbedrivenby the

eengagementoftheimpulseweights.

magnetointhepositionsoutlinedabove,the

gueswillengagetheslot"in theengine

agnetoisflangedintoposition.Approximate

wobtained.

eningscrewsbyhandbut nottotheextent

emovedtowardorawayfromthe cylinder

platebylooseningthe fourscrews.Thiswill

embly.

g,the interrupterpointsmustjustbegin

ary,inordertogetthat position,toturn

rdorawayfromthecylinderblock.

plateandinsert thecablebetweenoutlet

ichisthentimedto firecorrectly.

byconnectingtheremainingcablesofthe

sin theirproperfiringorder,(l-2-4-3).The

ributoror high-tensionendofthemagneto

ionofrotationfromthatindicatedby the


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75/221

MILWAUKEE.WISCONSIN

meplateandmust betakenintoconsiderationwhen

othesparkplugs.

n,itmust firstbedeterminedwhetherthe

elsewhere'.Ingeneral,whenonlyonecylinder

sparkplug.Themostcommonplugdif-

roperdistancebetweentheelectrodesofthe

enginesbut, normally,thisdistanceshould

theotherhand,however,toowideagap

sistanceandinterfereswiththeoperationof

fficultyin startinganengineandmissingat

ueto thesparkpluggapsbeingtoo wide,and

ndencytoburntheelectrodesandthereby

p,itis especiallyimportantthattheplugsbe

seethatthegapis nottoogreat;any

maybe readilyovercomebyreadjustingthe

Thisisusuallycausedbya crackedorporous

e electrodesorinsulator.Anyofthese

ringbypermittingthecurrentto strayfrom

ylinder,eithercontinuousorintermittent,

edorbrokencableora loosecableconnection.

cablesmustnot comeintocontactwithany

r themagneto,exceptthosedesignatedas

otheinstructionsgiven.

cablesandplugsarein goodconditionandyet

troubleisprobablywiththemagneto,and

40)shouldbecarefullyexamined.Itshouldbe

ver(38) movesfreelyandcontacts(44)are

ment(seeparagraphheaded"Interrupter").

ARTS:Asitsometimeshappensthatdistributorplate

amaged,it shouldbecarefullyexaminedfor

ofhigh-tensioncurrent.

ts(43)shouldbe adjustedtoanopeningof

upterlever(38)fibrebumperrestson the

Thisisdoneby shiftingtheadjustable

hecorrectopeninghasbeenreached.After

42)mustbesecuredbymeansof itsfastening

mustbefreefromoil orgreaseandbein

hefull surfacesofbothcontactsmeet

43)canbecleanedonasuitable stone.The

ended.

mesnecessary,alwaysreplacebothinterrupter

cket(42)atthe sametime.

odofremovingandreplacingthedistributorplate

ctpointinspectionoradjustment:

(36) ondistributorgear(l9)is visiblein


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76/221

ONS***

Removethefourfasteningscrews(30)andwith-

plateassembly.Adjustmentscannowbemade

utorplateassembly,line(36)on distributor

observationwindow(20).Engagemagnet

ear(25)andtightendistributorplate

teassemblywasremovedbeforethein-

erenoted,itwillbenecessarytorotatethe

cylinder,thisisthecylindernearestthe-

firingpositionof compressionstroke.

(l9)until line(36)isvisible inobservation

netrotorshaft(5)withrotor gear(25),slight-

neitherdirection,asrequired,topermit

ributorplatefasteningscrews(30).

ETO

ssemblyofamagneto,it issuggestedthat

nbenchorplacedin acleanpaninthe order

bled.(Removeimpulsecouplingbeforepro-

blyofthemagneto.)

ssemblybylooseningfasteningscrews.The

r geartotherotor gearshaftcaneasilybe

ributorplateassemblyupin onehandand

abenchsothatthe fourcornersoftheopen

strikesimultaneously.Rotorgearanddis-

removed.

semblybywithdrawingtwoscrewsandlocking

ERRUPTERASSEMBLY,PR0CEEDASF0LL0WS:

dscrewandlockwasher.

ndwickretainingbracket,withdrawfastening

ercotterpinandwasher,andpull outin-

ket,withdrawfasteningscrewsandlockwashers.

heoutsidetop ofthemagnetohousing

oil.

mdriveendofmagnetrotorandpull outmagnet

therendofmagnetrotor.Removeballbearing

ballbearingouterracerings fromdriveendof

sesideofinterrupterbracket.

SSEMBLY

ear,distributorgearand carbonbrushfor

istributorplateforcurrentleakageordamage.

nocarbonizedtrack,itisonlynecessaryto

platewithacloth dampenedwithasuitable

lcohol,etc.However,iftheplatehasacar-


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77/221

Y.MILWAUKEE.WISCONSIN

ouldbescrapedcleanandtheentireplate

penedwithalcohol.

houldbechecked.Pittedpointscanbedressed

seofafile isN0Trecommended.Ifpoint

aysreplaceboththeinterrupterleverandcon-

me.

hortcircuit,leakageordamage.

oilforcrackedhousing,loosecore,loose

.Inspectallsolderedconnections.Checkcon-

ngonacondensoscope,neonlightorother

ndouter raceringsforscoresandexcessive

tracksandballs shouldnotbediscoloredand

O

ngs,makesureallsurfacesof bearingseats

earingouterrace rings,placepaperwasher

packingstripIS504aroundthe sideofthe

etohousingandinterrupterplate. Bothends

meetatthemilledout slotintherecessof

nterrupterbracket.Centerbearingouterrace

nto place.

gshavebeenInstalled,trim offexcesspor-

4withasharppen knifeorrazorblade.

nnerracer ingsandinstallmagnetrotorinto

ortionofthemagnetohousing.Eachendof

opof themagnetopoleshoesinthe magneto

kholesateitherendofthe coilcoreshouldbe

aperedendof thecoilsecuringscrewsto

holes.Drivescrewsintoholesprovidedonthe

ohousing.Securelytightenscrewssoas to

nnectionbetweenthecoilcoreandpoleshoes.

theprotrudingendofeachscrewtoprevent

ssofinterrupterplateprovidedfor thispur-

crewsandlockwashersandtightensecurely.

hfeltwickonpivot pinofinterrupterplate.

sheronpivotpinafter interrupterleverhas

otterpininholeprovidedon pivotpin.

terplate.Putfeltwickretainingbracketand

crewandengageholeofcondenserbracket.Drive


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78/221

ONSpg.c

eadfasteningscrewandlockwasher(engagingin-

condenserlead)intoinsulatedpost ofcontact

assemblyonmagnetrotorshaftandslideIt

netohousing-providedforthispurpose.The

einterrupterplateis tolineupwith the

themagnetohousing.Driveinterrupterplate

hersandlockingplatesintoplace.Makecertain

narrowendofthe lockingplatesgripthein-

cliptoinsulatedpostof contactbracketand

EMBLY

ear intobronzebearingofdistributor

pacingwasheris ontheshaft.Rotatedis--

e linepointsdirectlytothe rotorgear

asherandtherotorgear ontherotorgear

aintedredon therotorgearwiththe distrib-

a whiteline.Putspringringon rotorgear

teassemblyintoplace.Theoblongshaped

engagethe magnetrotorshaft.Drivedis-

ewsintoplace.

andpointofefficiency^tointerruptthe

ension coilatthetimewhenthe magnet

lepositionformaximummagneticdisturbances

tionof themagnetrotorinrelationto the

termsofamechanicalmeasurementcalledthe

AYSdeterminedasthemagnetrotorleavesthe

magnetrotorapproachesit.The properedge

s2 mmminimumand3mmmaximum,anaverageof

nce,removethedistributorplateassembly.Turn

rectionthemagnetoistobe drivenuntilthe

ondthe edgeofthepoleshoe.Insert a2.5

betweenthemagnetrotorandpoleshoe.Turn the

ttheedgedistancegauge.Whileholdingthe

theinterruptercontactssothattheyjust

ebylooseningthecontactbracketfastening

eccentricscrewuntilproperadjustmenthas

ettotighten thecontactbracketfastening

ntactadjustmenthasbeenobtained.

ndfibreblockonthe interrupterleverwear,

eedgedistancebe checkedperiodicallyinorder

encyatalltimes.


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79/221

ONS

0l374Generatorareas follows:

REMY,ANDERS0N,IND.

ngdriveend

6ouncesformainbrushes and

rush

t7.5-7.8voltsat

7.3-7.6volts at

peresat6 volts

ybedividedintotwosections,normalmaintenance

edoperationofthegeneratorand thechecking

enerator.

Generator

MINEIFUNITSAREOPERATINGN0RMALLY

ERYANDAL0WCHARGINGRATEINDICATESN0RMAL0PER-

detodeterminethemaximumgeneratorout-


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80/221

MILWAUKEE.WISCONSIN

EBATTERYANDAHIGHCHARGINGRATE,itisnecessary

otthe step-voltagecontrolhasoperatedto

e generatorfieldcircuit.Thiscanbe

hevoltagecontrolcoverandcheckingtosee

sare open.Iftheyarenot,open them

controlarmaturebyhand.If theoutput

ontrolmustbe readjusted,asbelow.If

offwiththepointsheldopen,disconnectthe

rol"F"terminal.Theoutputshoulddrop

indicatesagroundedfieldinthe

catesagroundedfieldcircuitinthe

atevenafter thestep-voltagecontrolhasop-

stanceintothe generatorfieldcircuit,

thegeneratortooverchargethebattery.

sdesirableto reducethegeneratorout-

ANDAL0W0R N0CHARGINGRATE,momentarilyground

minal.Thisshouldnormallycausethe

esnot,checkthegeneratorfurther,

ableofproducingspecifiedoutput.If

heckthevoltagecontrol,sinceit isap-

egeneratorfieldcircuitin anormalman-

tputas thebatterydropstoa lowstate

sedbythe voltagecontrolpointsnot

dationorimproperadjustment.Loosecon-

,orothercausesofexcessiveresistance

ausethe voltagecontroltooperateand

uteventhoughthebatteryis stillina low

dependingonthetypeofoperation,thegenera-

dfora thoroughcleaningandinspectionofall

atureorfieldsin anydegreasingtank,orwith

s,sincethesemaydamagetheinsulation.Clean

n,drybrush.Theballbearingshouldbe clean-

odgrade ofballbearinggrease.Thecommutator

andtheraica undercutifnecessary.Allwir-

dbechecked.Rosinfluxshouldbeusedin mak-

ns.Acidfluxmustneverbeused onelectrical

wandremovecoverfromframeassembly.

ewsfromtopof brushholdersandremovelock

removelockwashers.Commutatorendframe

eassembly.

earmaturefromfieldframe assembly(pulley

l connectedtothearmatureshaft.)Place

maturebetweenthecopperjawsofa vise.

yshaftnutandlockwasher.Pulleycannowbe

oodruffkeyremovedus ingapairof pliers.

wbe removedbypressingfromarmatureshaft.

asherondriveend framecanberemovedat

erminalscrewsand removeleadsfrom"A"and

removecontrolunits2mountingscrews,


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81/221

ONS*~"

shers.Controlunitmaynowberemovedfrom

.

RAMEASSEMBLY;

erminalnuts,2 lockwashers,lplainwasher,

mboth "A"and"F"terminals.Alsothe2

unit canberemovedatthistime.Ter-

olderedfromfield lead.Caremustbetaken

leadsandfieldcoils.Bothterminal

mtheholes inthefieldframeassembly.

ace,unscrew2poleshoescrews.Poleshoes

outoffieldframe.

TAT0RENDFRAME;

from brushholdersprings,liftbrush

ngepins.Brush groundleadandthird

maynowbe removed.

hingscrewswiththeirlockwashers,andplain

lateandgasketmayberemovedby unscrewing3

moving3lockwashers.

sing pliers.Oilplugmustbedrilled outof

emovedatthistime.

tespringwasherpin sothatspringwasherand

emoved.

teclampscrewandremovelockwasherandthird

ablesthethird brushplatetober emoved.

mmer2brushhingepinsand 2brushstoppins may

tatorendframe.

bushingmaybepressedfromcommutatorendframe.

owelpinmaybe removedfromcommutatorend

NDFRAME:

tainerplatescrewandremovelockwasher.

rplategasketmaynowbe removed.

dframecanbepressedfromthe frame.Re-

rmaybe removed.

aybe removedusingpliers.

welpincanbe removedfromdriveendframe.

versingprocedureoutlinedinDisassembly.

ENERATOR

quireremovalofthegeneratorfromtheengine

egenerator,asfollows:

utput

4.Noisy generator


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82/221

,MILWAUKEE.WISCONSIN

heckforstickingor wornbrushesandburned

bars,withotherbarsfair1yc1ean,indicate

hes aremakinggoodcontactwithcom-

1ooksokay,usetest1eadsand1ightand check

heckwithtestpoints from"F"termina1to

ght.If itdoes,thegeneratoris

hesfromcommutatorandcheckfie1d,

1der'to1ocateground.

nded,checkfie1dforopencircuit.

heokfor shortedfie1d.Fie1ddrawat

amperes.Excessivecurrentdrawindi-

een1ocated,removearmatureandcheckon

onand brushesforsticking.

oughness,greaseanddirt,dirt ins1ots,

rned bars.Withanyofthesecondi-

stbeturneddownin a1atheandthemica

burnedbarswhich indicateopencir-

itionmustbee1iminatedorthearma-

resu1tseitherfromwrongadjustmentofthethird

generatorfie1dgroundedeitherinterna11yor

e1dcircuit(disconnecting1eadfrom"F"termin-

ratoroperatingata mediumspeedwi11determine

t.Iftheoutputdropsoff, thefie1dis

heoutputremainshigh,thefie1dis grounded

he po1e1shoes,1eads,oratthe"F" termina1s.

usedby1oosemounting,driveunit, worn,dryor

r1yseatedbrushes.Brushesmaybeseatedby

ro1unit

e,or atcormpt

beendis- _M-^\.and"Rat

nected,a("~flg;1 Termina1swith

nnectedM0-

BATTERYANDto

thevo1tage

engine.

ysurgeofcur-

egenera-

zesthe

hebat-

ToGenerator


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83/221

ONS

,Anderson,Ind.

osed)0l5"

9

NIT:

nce)5-l.l

"

. ..6.45-7.35

F)6.0max.

CT

s

sthebatteryfromdischargingbacK:throughthe

nginehasstoppedoris notrunningfastenough

e.It isentirelyautomaticinitsaction,but

inspectiontoseethatthe contactpointsare

ncerequired.Ifservicebecomesnecessaryen-

.


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84/221

UKEE.WISCONSIN

checkstobemadewithunit disconnected)

actpointsheldclosed,checktheairgap between

erofthe core".Toadjust,loosenthetwo

relayandraiseorlowerthe armatureas

ecurelyafteradjustment.

ointopeningisadjustedbybendingthe upper

onnectavoltmeterbetweenthecontrolunit"GEN"

uallyincreasegeneratorspeedandnotecut-

Bendthespringpost downtodecreasethe

ngvoltage.Bendup toraisetheclosing

sarytoopenthecontactpointscanbe checked

the chargingcircuitatthe"BAT"terminal

CESSARYEXCEPT

UTPUT

ckStep-

rator

LUNIT:

ck

nit,mountedonthesamebaseandenclosedby

t-outrelay,is amagneticswitchwhichauto-

eratoroutput(asdeterminedbythethird brush

eed)whenthebatteryis lowandrequiresa'high

atterycomesuptochargethe step-voltagecon-

oroutputto alowvaluesobatteryovercharge

TS(Electrical):

ks.Withthevoltagecontrolatoperatingtemper-

estvoltmeterbetweenthe"BAT"terminaland

donotopen,cut inresistance.*Checkvoltage

utresistanceor reducegeneratorspeed.


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85/221

ONS

URE

Ao~.MST

OPENING)

P)

stments

ointsclose.

ybeadjustedbybending thespiralspring

heopeningvoltagesettingor uptodecrease

g.

ngmaybeadjustedby adjustingtheAIRGAP.

e,increasetheair gap.Tolowerthe

theairgap.Itis onlynecessarytobend

ghtlywhenadjustingthe closingvoltage.

nt,itmaybenecessaryto readjustthe

ntainthecorrectcontactpointopening.

Mechanicalunitdisconnected)

eshouldbemeasuredwitha springgaugehooked

rriestheuppercontact,atthecontactpoint.

aratepoints.Adjustbybendingflat spring.

pushingthearmaturedownagainstthelower

ringbetweenthearmatureandcore.Adjustby

restop.

heckedbetweenthearmatureandthe lower

tedby bendingtheupperarmaturestop.

kismadewith thearmaturehelddownagainst

dis adjustedbybendingthecontactspring


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86/221

MILWAUKEE.WISCONSIN

00CrankingMotorisa6-volt,6 poleunitwith

er,commutatoranddriveends,and ispro-

verbandto guardagainsttheentranceofdust.

pedrive.

onviewingdriveend

emy,Anderson,Indiana

0ounces

amperesat5.0volts

at500amperesat3.0volts

ughCrankingMotor

tualtimedependingonthe typeofoperation,

bedisassembledfora thoroughcleaningandin-

endixdriveshould becleanedandoiledwith

cumulationofdirt onthedrivemightrestrict

pinion.Puta fewdropsoflightengineoil in

thearmatureorfieldsin anydegreasingtank,

aterials,sincethesemaydamagetheinsula-

r withclean,drybrush.Thecommutator

fnecessaryandthe micaundercut.Replace

ewear.Allwiringandconnectionsshouldbe

dbeusedinmakingsolderedconnections.Acid

electricalconnections.Submitreassembled

ests.


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87/221

ONSPag.3

YOPERATINGCRANKINGMOTOR

otdeveloprated torqueandcrankstheengine

hebattery,batteryterminalsandconnec-

Corroded,frayed,orbrokencablesshouldbe

connectionscorrected.Thecrankingmotor

orburnedcontactsandtheswitchcontacts

ssary.

movethecoverbandof thecrankingmotor

dcommutator.Thebrushesshouldformgood

ushspringtension.Adirty commutatorcanbe

00sandpaperheldagainstthecommutatorwith

otoroperates.NEVERUSEEMERYCL0THT0

ecommutatorisverydirty,or burned,orhas

aturefromthecrankingmotorandtakea cutoff

Under-cutthemica.

thecommutator,itmayindicateopencircuited

eventpropercranking.Inspectthesoldered

tatorriserbars.Anopenarmaturewillshowex-

utatorbarwhichisopen,on theno-loadtest.

madeifthe commutatorisnottoobadlyburnedby

ars (rosinflux),turningdowncommutatorand

rdirtybearingswillreducearmaturespeedor

mturning.Awornbearing,bentshaft,or loose

thearmatureto dragonthepoleshoes,caus-

fthearmaturetorevolve.Checkforthesecon-

tensionandcommutatorappearingoodcon-

rnalcircuitfoundsatisfactory,andthe

otoperatecorrectly,itwill benecessaryto

orforno-loadandtorquechecks.

orinserieswitha batteryofthespecified

apableofreadingseveralhundredamperes.Ifan

e,readthearmaturer.p.m.inadditionto the

circuita highcurrentcarryingvariable

cifiedvoltageatthemotor canbeobtained.

agewill produceamarkeddifferenceinthe

L0ADANDT0RQUETESTS

wandnoloadspeedindicatesnormalcondition


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currentdrawwithlowdevelopedtorquemay

ings,bent armatureshaftorloosefield

llowthearmaturetodrag.

ck:armaturefurtherongrowler.

field.Checkbyraising thegrounded

mfromthecommutator,withcardboard

estlamp betweentheinsulatedterminal

plights,raiseotherbrushesfrom

eldsandcommutatorseparatelytodetermine

rmaturethatis ground.

gh currentdraw:

witch,terminalorfields.

hichpreventthearmaturefromturning.

o currentdraw:

tinternalconnectionsandtracecir-

pectthecommutatorforbadlyburned

anopenarmaturewillshowexcessive

barwhichisopen.

ushsprings,wornbrushes,highmicaonthe

seswhichwouldpreventgoodcontactbe-

mmutator.Anyoftheseconditionswill

orbars.

lowtorqueandlow currentdrawindicates:

aiseandinsulate ungroundedbrushesfrom

eldswithtestlamp.

dueto poorconnections,defectiveleads

seslistedunder4.c.above.

ameassemblyto establishrelationship.Re-

ngattachingscrewsandlockwashersfrom

singawayfromfieldframehousing witha

Bendixdriveassembly,centerbearingplateand

yonthearmatureshaftfrom thefieldframe

nterbearingattachingscrewsandlockwashers;

gplateandcenterbearingbushing.Drive

offof Bendixassembly.Removespacewasher

veend.B

Tm 5-5060 1942 Le Roi Motorized Compressor on Gmc Deuce

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Transcript of Tm 5-5060 1942 Le Roi Motorized Compressor on Gmc Deuce