www.wackergroup.com

Vibroplates

VPG 155VPG 160VPG 165VPG 170BVPN 50

REPAIR MANUAL

0072369 002

0600 en

0 0 7 2 3 6 9

VPG REPAIR FOREWORD

Operating/Parts InformationYou must be familiar with the operation of this machine before you attempt to troubleshootor make any repairs to it. Basic operating and maintenance procedures are described inthe operator's/parts manual supplied with the machine. The operator's/parts manualshould be kept with the machine. Use it to order replacement parts when needed. If itbecomes lost, please contact WACKER Corporation to order a replacement.

Damage caused by misuse or neglect of the unit should be brought to the attention of theoperator, to prevent similar occurrences from happening in the future.

This manual provides information and procedures to safely repair and maintain thisWACKER model. For your own safety and protection from injury, carefully read,understand and observe the safety instructions described in this manual. THEINFORMATION CONTAINED IN THIS MANUAL WAS BASED ON MACHINES INPRODUCTION AT THE TIME OF PUBLICATION. WACKER CORPORATION RE-SERVES THE RIGHT TO CHANGE ANY PORTION OF THIS INFORMATION WITHOUTNOTICE.

FOREWORD VPG REPAIR

Identification PlateAn identification plate listing the Model Number and Serial Number is attached to each unit and is located on the rearof the engine mount bracket. Please record the information found on this plate so it will be available should theidentification plate become lost or damaged. When ordering parts or requesting service information, you will alwaysbe asked to specify the model and serial number of the unit.

The serial number identifies your machine and willensure that you receive the correct replacement parts.

1015SD26

80809 MNCHEN DEUTSCHLAND

MADE IN USA

MENOMONEE FALLS WI USA 53052

kW

hp

kg

dB(A)/7m

lbs

88223

VPG 165A755301234

7553 01234

Production Sequence

Model Identification

VPGRepair Manual

1

1 Introduction1.1 Safety Notes .................................................................................................. 21.2 Laws Pertaining to Spark Arresters ............................................................... 21.3 Operating Safety ............................................................................................ 31.4 Engine Safety ................................................................................................ 31.5 Service Safety ............................................................................................... 41.6 Technical Data ............................................................................................... 51.7 VPG Cross Section ........................................................................................ 61.8 Application ..................................................................................................... 71.9 General Description ....................................................................................... 71.10 Periodic Maintenance Schedule .................................................................... 7

2 Baseplate2.1 VPG - Exploded View .................................................................................... 82.2 Guide Handle ............................................................................................... 102.3 Belt & Beltguard ........................................................................................... 102.4 Engine & Mount Bracket .............................................................................. 11

3 Exciter3.1 Exciter - Exploded View .............................................................................. 123.2 Exciter .......................................................................................................... 133.3 Exciter Components .................................................................................... 14

4 Clutch4.1 Clutch Assembly - Exploded View ............................................................... 164.2 Clutch .......................................................................................................... 174.3 Clutch Components ..................................................................................... 174.4 Clutch Engagement Speed Test .................................................................. 18

Machine Troubleshooting ....................................................................................... 18

Table of Contents

21 INTRODUCTION VPG REPAIR

1.1 Safety NotesThis manual contains NOTES, CAUTIONS, and WARNINGS which must be followed to reduce the possibility ofimproper service, damage to the equipment, or personal injury. Read and follow all NOTES, CAUTIONS andWARNINGS included in instructions.

Note: Contains additional information important to a procedure.

CAUTION:CAUTION:CAUTION:CAUTION:CAUTION: Provides information important to prevent errors which could damage machine or components.

WARNINGWarns of conditions or practices whichcould lead to personal injury or death!

1.2 Laws Pertaining to Spark ArrestersNotice: Some states require that in certain locations, spark arresters be used on internal combustion engines. A sparkarrester is a device designed to prevent the discharge of sparks or flames from the engine exhaust. It is often requiredwhen operating equipment on forested land to reduce the risk of fires. Consult the engine distributor or local authoritiesand make sure you comply with regulations regarding spark arresters.

3VPG REPAIR INTRODUCTION 1

1.3 Operating SafetyFamiliarity and proper training are required for the safe operation of this equipment! Equipment operated improperlyor by untrained personnel can be dangerous! Read the operating instructions contained in both the operator'smanual and the engine manual and familiarize yourself with the location and proper use of all controls.

DO NOT smoke while operating machine.

DO NOT smoke when refueling engine.

DO NOT refuel hot or running engine.

DO NOT refuel engine near open flame.

DO NOT spill fuel when refueling engine.

DO NOT run engine near open flames.

ALWAYS refill fuel tank in well-ventilated area.

ALWAYS replace fuel tank cap after refueling.

NEVER allow anyone to operate this equip-ment without proper training. People operatingthis equipment must be familiar with the risksand hazards associated with it.

NEVER touch engine or muffler while the en-gine is on or immediately after it has beenturned off. These areas get hot and may causeburns.

NEVER use accessories or attachments whichare not recommended by WACKER. Damageto equipment and injury to the user may result.

NEVER leave machine running unattended.

1.4 Engine SafetyInternal combustion engines present special hazards during operation and fueling! Failure to follow the safetyguidelines described below could result in severe injury or death.

WARNING

WARNING

ALWAYS be sure operator is familiar with propersafety precautions and operation techniquesbefore using machine.

ALWAYS wear protective clothing when operat-ing machine. Goggles or safety glasses are rec-ommended to protect your eyes from stones ordust which may bounce up during operation.

ALWAYS close fuel valve on engines equippedwith one when machine is not being operated.

ALWAYS store equipment properly when it is notbeing used. Equipment should be stored in aclean, dry location out of the reach of children.

41 INTRODUCTION VPG REPAIR

1.5 Service SafetyPoorly maintained equipment can become a safety hazard! In order for the equipment to operate safely and properlyover a long period of time, periodic maintenance and occasional repairs are necessary.

WARNING

DO NOT attempt to clean or service machinewhile it is running. Rotating parts can causesevere injury.

DO NOTDO NOTDO NOTDO NOTDO NOT crank a flooded engine with thespark plug removed on gasoline-poweredengines. Fuel trapped in the cylinder willsquirt out the spark plug opening.

DO NOTDO NOTDO NOTDO NOTDO NOT test for spark on gasoline-poweredengines, if engine is flooded or the smell ofgasoline is present. A stray spark could ignitefumes.

DO NOTDO NOTDO NOTDO NOTDO NOT use gasoline or other types of fuelsor f lammable solvents to clean parts,especially in enclosed areas. Fumes fromfuels and solvents can become explosive.

DO NOT operate machine with the beltguardmissing. Exposed drive belt and pulleyscreate potentially dangerous hazards thatcan cause serious injuries. If it is necessaryto remove beltguard for testing, be sure toreplace it before operating machine.

ALWAYS operate machine with all safetydevices and guards in place and in workingorder.

ALWAYS keep area around muffler free of debrissuch as leaves, paper, cartons, etc. A hot mufflercould ignite them, starting a fire.

ALWAYSALWAYSALWAYSALWAYSALWAYS replace worn or damaged compo-nents with spare parts designed and recom-mended by WACKER.

ALWAYS disconnect spark plug on machinesequipped with gasoline engines, before servicing,to avoid accidental start-up.

5VPG REPAIR INTRODUCTION 1

Robi

n

EY15

3.5

(2.6)

3500

1

00

1600

1

00

In: 0

.004

(0.10

)Ex

: 0.0

04 (0

.10)

Dua

l Ele

men

t

SAE1

0W30

SG, S

F, S

E

20 (6

00)

Reg.

unle

aded

gaso

line

3.0

(2.8)

Cham

pion

RL8

6C

0.02

5 (0.6

)

Brig

gs &

Stra

tton

1352

32

5.0

(4.0)

3400

1

00

1600

1

00

In: 0

.006

(0.15

)Ex

: 0.0

10 (0

.25)

Dua

l Ele

men

t

SAE1

0W40

SF, S

E, S

D or

SC

20 (6

00)

Reg.

unle

aded

gaso

line

3.0

(2.8)

Cham

pion

RCJ

8

0.03

0 (0.7

6)

Hond

a

GX1

20K1

QX

4.0

(3.0)

3600

1

00

1600

1

00

In: 0

.006

(0.15

)Ex

: 0.0

08 (0

.20)

Dua

l Ele

men

t

SAE1

0W30

SG, S

F

20 (6

00)

Reg.

unle

aded

gaso

line

2.6

(2.5)

(NGK

) BPR

6ES

0.02

80.

031

(0.7

0.8)

Hond

a

GX1

20K1

QX

4.0

(3.0)

3600

1

00

1600

1

00

In: 0

.006

(0.15

)Ex

: 0.0

08 (0

.20)

Dua

l Ele

men

t

SAE1

0W30

SG, S

F

20 (6

00)

Reg.

unle

aded

gaso

line

2.6

(2.5)

(NGK

) BPR

6ES

0.02

80.

031

(0.7

0.8)

Engi

ne M

ake

Engi

ne M

odel

Rat

ed P

ower

Hp

(kW)

Engi

ne S

peed

- ful

l load

rpm

Engi

ne S

peed

- idl

erp

m

Valv

e Cl

eara

nce (

cold)

in. (m

m)

Air C

lean

er

Engi

ne Lu

brica

tion

oil g

rade

serv

ice

clas

s

Engi

ne O

il Cap

acity

oz.

(ml)

Fuel

Fuel

Tan

k Cap

acity

qt. (l

)

Spar

k Plu

g

Elec

trode

Gap

in. (m

m)

VPG

155A

/160

A

Hond

a

GX1

10 Q

X

4.0

(3.0)

3600

1

00

1600

1

00

In: 0

.006

(0.15

)Ex

: 0.0

08 (0

.20)

Dua

l Ele

men

t

SAE1

0W30

SG, S

F

20 (6

00)

Reg.

unle

aded

gaso

line

2.6

(2.5)

(NGK

) BPR

6ES

0.02

80.

031

(0.7

0.8)

Engi

ne

1.6

Tech

nica

l Dat

a

VPG

155B

/160

BVP

G16

5A/1

70A

Kohl

er

K91T

4.0

(3.0)

3750

1

00

1600

1

00

In: 0

.007

(0.10

)Ex

: 0.0

13 (0

.33)

Sing

le E

lem

ent

SAE

30W

SG, S

F, S

E, S

D, S

C

16 (4

80)

Reg

. unl

eade

d gas

olin

e

1.6

(1.5)

Cham

pion

RJ8

0.02

5 (0.6

)

VPG

160K

VPG

155A

/160

AVP

G15

5R/1

60R

BVP

N 5

0

Wac

ker

WM

80

4.0

(3.0)

4300

1

00

1700

1

00

N/A

Dua

l Ele

men

t

BIA-

TC-W

(2-cy

cle oi

l)

N/A

Reg.

unle

aded

gaso

line/

oil

50:1

1.8

(1.7)

Cham

pion

RL8

6C

0.02

5 (0.6

)

Plat

e

4.75

(4.5)

5700

Shel

l Alva

nia #

2

2350

(10.5

)

4.75

(4.5)

6250

Shel

l Alva

nia #

2

2850

(12.7

)

Wat

er T

ank C

apac

ityqt

. (l)

Exci

ter S

peed

rpm

Exci

ter L

ubric

atio

ngr

ease

Cent

rifug

al Fo

rce

lbs.

/kN

N/A

5800

Shel

l Alva

nia #

2

2585

(11.5

)

4.75

(4.5)

5840

Shel

l Alva

nia #

2

2500

(11)

4.75

(4.5)

5840

Shel

l Alva

nia #

2

2500

(11)

4.75

(4.5)

7000

Shel

l Alva

nia #

2

3375

(15)

4.75

(4.5)

5840

Shel

l Alva

nia #

2

2500

(11)

61 INTRODUCTION VPG REPAIR

9 Seal10 Bearing Cover11 Bearing12 Bearing Housing13 Exciter Shaft14 Baseframe Console15 Gasket16 Mounting Bar17 Mounting Bracket

2

1

3

4

6789101111 129813

14

16 1715

15

5

1 Clutch2 Beltguard3 Belt4 Shockmount5 Baseplate6 Pulley7 Key8 Eccentric Weight

1018SD54

1.7 VPG Cross Section

7VPG REPAIR INTRODUCTION 1

1.8 ApplicationThis plate is designed for compacting sand, gravel, andloose aggregate. It is also ideal for compacting cold andhot asphalt.

This plate is not recommended for compacting cohesivesoils with a heavy clay content.

1.10 Periodic Maintenance ScheduleThe chart below lists basic plate and engine maintenance. Refer to engine manufacturers Operators Manual foradditional information on engine maintenance. A copy of the engine Operators Manual was supplied with the machinewhen it was shipped.

Check fuel level.

Check engine oil level.

Inspect air filter. Replace as needed.

Check and tighten external hardware.

Inspect shockmounts for damage.

Check and adjust drive belt.Change engine oil.

Clean sediment cup.

Check and clean spark plug.

Clean air cleaner.

Check and adjust valve clearances.Grease exciter bearings.

DailyBeforeStarting

Every 6months or500 hours

Every twoweeks or50 hours

Yearly

*

**

* Check new belts after first 5 hours of operation.** Change engine oil after first 20 hours of operation.

1.9 General DescriptionOn the VPG line of vibroplates, engine power is trans-ferred to the exciter through a centrifugal clutch and V-belt. The grease-lubricated exciter consists of two ec-centric weights mounted to a shaft. The shaft rides ontwo ball bearings which are supported by a cast-ironhousing. The exciter vibrates between 5700 and 7000times per minute and produces from 2350 (10.5 kN) to3375 pounds (15 kN) of centrifugal force, depending onmodel.

Everymonth or100 hours

82 BASEPLATE VPG REPAIR

2.1 VPG - Exploded View

1018SD42

29*

30

2324

25

27

28

22

18*17

14

7

5

4

12

13*

111615

6

19

32

35

34*

2*3

32

33 331*

20

21

20

36 3837

39

26

40

41*

41*

42*

43

10

8

9

1

9VPG REPAIR BASEPLATE 2

Ref. Description Qty

Parts List

1 Engine 12 Nut-lock M8 83 Washer B8.4 24 Screw M4x6 25 Duct-deflector 16 Key 3/16x1-13/16 17 Belt-V 18 Clutch-centrifugal 19 Washer-flat 1

10 Washer-lock 5/16 111 Screw 5/16-24x7/8 112 Beltguard 113 Nut M10 214 Washer-lock B10 215 Bracket-mount 116 Screw M10x25 217 Mount-exciter bar 118 Screw M12x30 619 Washer-lock B12 620 Shockmount 821 Console-base frame 122 Exciter 123 Pulley-exciter drive 124 Washer-lock B12 125 Nut-lock M12 126 Guide handle 127 Plug-push-in 128 Baseplate 129 Screw M16x140 230 Washer-lock B16 231 Screw M8x40 432 Shim 1/8" thick 833 Nut-lock M8 234 Screw M8x50 235 Weight-bar 136 Screw M12 x 50 237 Washer 238 Bushing-handle 239 Bushing-nylon 240 Bracket-handle 241 Nut-lock M8 442 Nut-M12 243 Washer-lock 2

Recommended ToolsAllen Wrench: 5 mmSocket: 13 mm, 14 mm, 17 mm, 19 mm, 24 mmOpen End Wrench: 19 mmScrewdriverGear PullerTorque WrenchGrease: Shell Alvania #2Arbor Press

* Assembly NotesREF. SEALANT TORQUE

LOCTITE (OMNIFIT) FT.LBS. (Nm)

2 --- 8 (11)13 --- 32 (43)18 --- 47 (64)29 --- 188 (255)31 --- 18 (24)34 --- 18 (24)41 --- 10 (14)42 --- 54 (23)

10

2 BASEPLATE VPG REPAIR

2.2 Guide HandleRemoval:1. Remove the M8 nuts (41) from bracket (40) on each side

of machine and remove handle assembly.

2. Remove M12 nuts (42), screw (36), washer (37), bush-ings (38 & 39), and handle from bracket. Press bushingsfrom handle if necessary.

3. Replace shockmounts if they appear cracked or dam-aged. Use a channel-lock pliers to unscrew shockmounts(20) from console.

Installation:1. Install shockmounts (20) to console.

2. Assemble handle to bracket (40). Include screw (36),washer (37), nuts (42), and bushings (38 & 39). Torquenuts to 54 ft.lbs. (73 Nm).

3. Attach handle assembly to shockmounts with M8 nuts(41). Torque nuts to 10 ft.lbs. (14 Nm).

38 39

36 37

40

4142

1018SD43

20

FIG. 2-1 GUIDE HANDLE REMOVAL / INSTALLATION

1015SD35

1015SD36

a

32

FIG. 2-2 BELT ADJUSTMENT

2.3 Belt & Beltguard

Removal:1. Remove the two M10 nuts (13), and screws (16) secur-

ing beltguard (12) to mount bracket (15).

2. Twist belt (7) to side of clutch pulley (8) and turn pulleyby hand to remove belt.

Installation:1. Twist belt (7) to side of clutch pulley (8) and turn pulley

by hand to install.

2. Tension belt by placing shims (32) above or belowengine mounting bracket (a) as required. Shim machinefront to back, not side to side. Shim belt so that it deflects3/8"-1/2" (10-13 mm) when pressed midway betweenpulleys.

3. Secure beltguard (12) to mount bracket (15) with twoM10 nuts (13), lockwashers (14), and screws (16).Torque nuts to 32 ft.lbs. (43 Nm).

4. Clean or replace spark plug and re-install.

Remove engine spark plug before removingengine console from baseplate. This will aid inremoving belt and prevent engine from startingunexpectedly.

WARNING

32

11

VPG REPAIR BASEPLATE 2

2.4 Engine & Mount BracketRemoval:1. Remove beltguard and belt as described in Section

2.3 Belt & Beltguard.

2. Remove the four M8 locknuts (2), washers (3), andshims (32), securing mount bracket to shockmounts(20). Note position and number of shims for proper re-assembly.

3. Where required, remove the water hose from thewater tank valve.

4. Carefully lift the engine/mount bracket assemblyfrom the baseplate assembly (b) and removeshockmounts if they appear cracked or damaged.

Installation:1. Screw shockmounts (20) into baseplate assembly

(b).2. Place shims (32) in proper positions. If replacing

shockmounts, insert shims on top of mounting bracket.

3. Secure mount bracket assembly to shockmountsusing M8 locknuts (2) and washers (3). Torque nutsto 8 ft.lbs. (11 Nm).

4. Install belt and beltguard as described in Section 2.3Belt & Beltguard.

FIG. 2-3 ENGINE & MOUNTING BRACKET

1018SD44

32

32

20

b

12

3 EXCITER VPG REPAIR

3.1 Exciter - Exploded View

1015SD94

5

1

2

46

7

8*

3*

43*10

11

8*

7

6

1413

12

1

2

5

* Assembly NotesREF. SEALANT TORQUE

LOCTITE (OMNIFIT) FT.LBS. (Nm)

3 290 (230L) 7 (9)8 ALVANIA #2 ---

9

13

VPG REPAIR EXCITER 3

Ref. Description Qty

Parts List

1 Retaining ring-ext. 22 Weight-eccentric 23 Screw M6x20 64 Washer B6.4 65 Seal-shaft 26 Cover-bearing 27 Gasket 28 Bearing-needle 29 Housing-exciter 1

10 Shaft-exciter 111 Key 212 Pulley-exciter drive 113 Washer-lock B12 114 Nut-lock M12 1

Recommended ToolsAllen Wrench: 5 mmSocket: 13 mm, 14 mm, 17 mm, 19 mm, 24 mmOpen End Wrench: 19 mmScrewdriverGear PullerTorque WrenchGrease: Shell Alvania #2Arbor PressHammerBlunt End Punch

3.2 ExciterRemoval:1. Remove the engine and mounting plate as described

in Section 2.4 Engine & Mount Bracket.

2. Remove the six M12 screws (a) securing the baseframe console (b) to the baseplate (c).

3. Loosen the M16 screws (d) and remove the excitermounting bar (e) and the exciter (f) from the baseframe console.

Installation:1. Secure the exciter (f) to the base frame console (b)

with two M16 screws (d) and mounting bar (e).Torque screws to 188 ft.lbs. (255 Nm).

Note: Slide exciter fully forward when installing. Thiswill insure plate will travel at the proper speed.

2. Secure the base frame console to the baseplate (c)with six M12 screws (a). Torque screws to 47 ft.lbs.Note: Slide base frame console fully forward wheninstalling. This will insure plate will travel at the properspeed.

3. Re-install the engine and mount bracket as describedin Section 2.4 Engine & Mount Bracket.

1018SD45

FIG. 3-1 EXCITER REMOVAL / INSTALLATION

c

b

d

f

ea

14

3 EXCITER VPG REPAIR

3.3 Exciter ComponentsDisassembly:1. Remove the exciter as described in Section 3.2

Exciter.

2. Remove the M12 locknut (14) and washer (13) anddouse the exciter shaft and pulley with penetrating oil.

3. Use a blunt end punch (a) and a hammer to drive thepulley from the exciter shaft. Once off, re-thread thenut (14) back onto the exciter shaft (10) to protectshaft threads.

4. Remove retaining rings (1) from both ends of excitershaft. Remove the M6 screws (3) securing the bear-ing covers (7). Covers must be loose when pressingout exciter shaft (Step 5).

5. Place the assembly into an arbor press. Use anappropriate support (b) as shown. The inside diam-eter of the support should be no less than 4.25 inches(108 mm) to ensure housing is adequately supported.Position nut (14) and on end of shaft (10) so that whenpressing, equal pressure is exerted on both nut andshaft. This will avoid damage to shaft threads. Thenpress, as an assembly, the exciter shaft (10), eccen-tric weight (2), outer bearing race (c), and the innerbearing races (d), out of the exciter housing.Note: Keep outer and inner bearing races togetheras sets and replace them as sets when necessary.

6. Press the remaining outer bearing race out of theexciter housing.

7. Use an appropriate size and length of pipe (f) tosupport exciter shaft and press the eccentric weight(2), cover (6), and the outer bearing race (g) off theexciter shaft.

8. Remove the inner races from the exciter shaft with agear puller.

Note: It is only necessary to remove inner races ifbearing is to be replaced. Heat inner races to aidremoval. If bearing is not being replaced, be sure tomatch inner races with mating outer races during re-assembly.

9. Remove seals (5) and gaskets (7) from covers.

FIG. 3-4 PULLEY REMOVAL

1018SD48

a

FIG. 3-2 PULLEY REMOVAL

1018SD46

1018SD47

d

10

c

d

b

FIG. 3-3 SHAFT REMOVAL

2

g

26

f

4.25" (108 mm)

14

13 14

15

VPG REPAIR EXCITER 3

Assembly:1. If replacing bearings, press new inner races (h) onto

exciter shaft as shown.

2. Clean thoroughly, the inside of the exciter housing.Press one outer race (i) into exciter housing. Pack thehousing 1/4 full with Shell Alvania #2 or an equivalentgrease.

CAUTION: The exciter must be packed with theappropriate amount and type of grease to insureproper operation and service life of the bearings.

3. Press exciter shaft with inner races into exciterhousing. Press the remaining outer race (j) over theshaft and into the housing.

4. Apply a light coat of Shell Alvania #2 or equivalent toseals (8) and press seals into covers.

5. Align covers (6) and gaskets (7) and secure tohousing with three M6 screws (3). Use Loctite 290 orequivalent on screws and torque to 7 ft.lbs. (9 Nm).

Note: Lips of seals should point in toward interior ofexciter housing.

6. Install keys (11) and press eccentric weights (9) ontoexciter shaft. Secure weights with retaining rings (1).

7. Mount pulley (12), lockwasher (13), and M12 nut (14).

8. Install exciter assembly to base frame console asdescribed in Section 3.2 Exciter.

768

1213

j

3119

1

14

1018SD50

FIG. 3-6 EXCITER ASSEMBLY

h

FIG. 3-5 EXCITER SHAFT & INNER RACES

i

1018SD49

16

4 CLUTCH VPG REPAIR

4.1 Clutch Assembly - Exploded View

Ref. Description Qty

Parts List

1018SD51

4

6

5

5

4

3

2

Recommended ToolsInternal Retaining Ring PliersExternal Retaining Ring PliersArbor PressTachometerOpen End Wrench: 14 mmPliersAnti-seizeTwo Screwdrivers

101112

8

79

13

1

1 Clutch-centrifugal assly (2-9) 12 Cover 13 Hub 14 Spring 25 Shoe-clutch 26 Clutch drum 17 Retaining ring 18 Bearing 19 Retaining ring 1

10 Washer 111 Lockwasher 112 5/16 Screw 113 Key 1

17

VPG REPAIR CLUTCH 4

4.2 ClutchRemoval:1. Disconnect spark plug lead. Remove beltguard and

belt as described in Section 2.3 Belt & Beltguard.

2. Remove screw (12), lockwasher (11), and washer(10) securing clutch (1) to engine shaft. Pry clutchfrom engine shaft using two screwdrivers or appropri-ate pry bars. Be careful not to damage clutch whenremoving.

3. Remove key (13).

Installation:1. Insert key (13) on engine shaft and apply anti-seize to

shaft.

2. Secure clutch assembly to engine shaft with washer(10), lockwasher (11), and screw (12).

3. Install belt and beltguard as described in Section 2.3Belt & Beltguard. Reconnect spark plug lead.

b

b

1018SD53

4.3 Clutch ComponentsDisassembly:1. Remove clutch as described in Section 4.2 Clutch.

2. Remove retaining rings (9) and (7) from engine sideof clutch.

3. Support clutch drum assembly as shown (a) andpress out clutch hub (3) and shoe assembly.

4. Remove springs with pliers and remove shoes.

5. Invert assembly and press bearing from clutch hub.

Assembly:1. Press bearing (8) into clutch drum (6). Secure bearing

with retaining ring (7).

2. Assemble shoes (5) and springs (4) to clutch hub (3).Position clutch shoes on pins (b) as shown. Pressassembly into clutch drum and secure with retainingring (9).

3. Mount clutch to engine as described in Section 4.2Clutch.

FIG. 4-1 CLUTCH HUB

1018SD52

a

18

4 CLUTCH VPG REPAIR

4.3 Clutch Engagement Speed Test

1. Remove beltguard as described in Section 2.3 Belt &Beltguard.

2. Start engine and allow it to warm up.

3. Pull throttle to full speed. Allow the exciter to reach fullspeed for a few seconds, then return to idle.

WARNINGTake care when testing machine with beltguardremoved to avoid loose clothing, jewlery, longhair, etc. from getting caught in rotating parts.Replace beltguard after testing and before oper-ating machine.

4. Attach tachometer and slowly increase engine speed.Note the engine speed reading when clutch pulleystarts to rotate. Correct clutch speed is 2200 100RPM.

5. If clutch engagement is below 2100 RPM, check forweak springs. If clutch engagement is over 2300RPM, clutch may be worn and require replacement,or exciter belt may be binding.

1. Engine throttle control not completely open.2. Throttle control not adjusted correctly.3. Ground too wet, plate sticking. Allow soil to dry before com-

pacting.4. Drive belt loose or worn; slipping on pulleys. Adjust or replace

belt. Check that engine mounting bolts are tight.5. Exciter bearings binding. Check condition of bearings; repack

or replace as needed.6. Air filter clogged with dust, reducing engine performance.

Clean or replace air filter.7. Engine speed too low. Check engine speed with tachometer.

Adjust or repair engine to run at correct speed. Refer to enginemanual.

1. Engine throttle not open.2. Drive belt loose or broken. Adjust or replace.3. Clutch damaged. Inspect and replace clutch.4. Engine speed too low. Check engine speed.

1. Ground surface too hard.2. Shockmounts loose or damaged.

Plate does notdevelop full speed.Poor compaction.

Engine running, no vibration

Plate jumps or compactsunevenly.

Problem / Symptom Reason / Remedy

Machine Troubleshooting

Use Of Threadlockers and Sealants

Threadlocking adhesives and sealants are specified throughout this manual and should be used where indicated.Threadlocking compounds normally break down at temperatures above 350 F (175 C). If a screw or bolt is hardto remove, heat it using a small propane torch to break down sealant. When applying sealants, follow instructionson container. The sealants listed below are recommended for use on WACKER equipment.

SEALANTS

TYPE( ) = Europe COLOR USAGE PART NO. - SIZE

Loctite 222 Purple Low strength, for locking threads smaller than 1/4" (6 mm). 73287 - 10 mlHernon 420 Hand tool removable.Omnifit 1150 (50M) Temp. range, -65 to 300 degrees F (-54 to 149 degrees C)

Loctite 243 Blue Medium strength, for locking threads larger than 1/4" (6 mm). 29311 - .5 mlHernon 423 Hand tool removable. 17380 - 50 mlOmnifit 1350 (100M) Temp. range, -65 to 300 degrees F (-54 to 149 degrees C)

Loctite 271 / 277 Red High strength, for all threads up to 1" (25 mm). 29312 - .5 mlHernon 427 Heat parts before disassembly. 26685 - 10 mlOmnifit 1550 (220M) Temp. range, -65 to 300 degrees F (-54 to 149 degrees C) 73285 - 50 ml

Loctite 290 Green Medium to high strength, for locking preassembled threads 28824 - .5 mlHernon 431 and for sealing weld porosity (wicking). 25316 - 10 mlOmnifit 1710 (230LL) Gaps up to 0.005" (0.13 mm)

Temp. range, -65 to 300 degrees F (-54 to 149 degrees C)

Loctite 609 Green Medium strength retaining compound for slip or press fit 29314 - .5 mlHernon 822 of shafts, bearings, gears, pulleys, etc.Omnifit 1730 (230L) Gaps up to 0.005" (0.13 mm)

Temp. range, -65 to 300 degrees F (-54 to 149 degrees C)

Loctite 545 Brown Hydraulic sealant 79356 - 50 mlHernon 947 Temp. range, -65 to 300 degrees F (-54 to 149 degrees C)Omnifit 1150 (50M)

Loctite 592 White Pipe sealant with Teflon for moderate pressures. 26695 - 6 mlHernon 920 Temp. range, -65 to 300 degrees F (-54 to 149 degrees C) 73289 - 50 mlOmnifit 790

Loctite 515 Purple Form-in-place gasket for flexible joints. 70735 - 50 mlHernon 910 Fills gaps up to 0.05" (1.3 mm)Omnifit 10 Temp. range, -65 to 300 degrees F (-54 to 149 degrees C)

Loctite 496 Clear Instant adhesive for bonding rubber, metal and plastics;Hernon 110 general purpose. 52676 - 1 oz.Omnifit Sicomet 7000 For gaps up to 0.006" (0.15 mm)

Read caution instructions before using.Temp. range, -65 to 180 degrees F (-54 to 82 degrees C)

Loctite Primer T Aerosol Fast curing primer for threadlocking, retaining and 2006124 - 6 oz.Hernon Primer 10 Spray sealing compounds. Must be used with stainless steelOmnifit VC Activator hardware. Recommended for use with gasket sealants.

Size Ft.Lb. Nm Ft.Lb. Nm Ft.Lbs. Nm Inch Metric Inch MetricNo.4 *6 0.7 *14 1.0 *12 1.4 1/4 5.5 3/32 -

No.6 *12 1.4 *17 1.9 *21 2.4 5/16 8 7/64 -

No.8 *22 2.5 *31 3.5 *42 4.7 11/32 9 9/64 -

No.10 *32 3.6 *45 5.1 *60 6.8 3/8 - 5/32 -

1/4 6 8.1 9 12 12 16 7/16 - 3/32 -

5/16 13 18 19 26 24 33 1/2 13 1/4 -

3/8 23 31 33 45 43 58 9/16 - 5/16 -

7/16 37 50 52 71 69 94 5/8 16 3/8 -

1/2 57 77 80 109 105 142 3/4 19 3/8 -

9/16 82 111 115 156 158 214 13/16 - - -

5/8 112 152 159 216 195 265 15/16 24 1/2 -

3/4 200 271 282 383 353 479 1-1/8 - 5/8 -

1 Ft.Lb. = 1.357 Nm 1 Inch = 25.4 mm* = In.Lb.

Metric Fasteners (DIN)

Inch Fasteners (SAE)

Size Ft.Lb. Nm Ft.Lb. Nm Ft.Lbs. Nm Inch Metric Inch MetricM3 *11 1.2 *14 1.6 *19 2.1 7/32 5.5 - 2.5

M4 *26 2.9 *36 4.1 *43 4.9 9/32 7 - 3

M5 *53 6.0 6 8.5 7 10 5/16 8 - 4

M6 7 10 10 14 13 17 - 10 - 5

M8 18 25 26 35 30 41 1/2 13 - 6

M10 36 49 51 69 61 83 11/16 17 - 8

M12 63 86 88 120 107 145 3/4 19 - 10

M14 99 135 140 190 169 230 7/8 22 - 12

M16 155 210 217 295 262 355 15/16 24 - 14

M18 214 290 298 405 357 485 1-1/16 27 - 14

M20 302 410 427 580 508 690 1-1/4 30 - 17

8.8 10.9

TORQUE VALUES (Based on Bolt Size and Hardness) WRENCH SIZE

12.9 12.910.98.8

TORQUE VALUES

SAE 5 SAE 8

Wacker Construction Equipment AG Preuenstrae 41 D-80809 Mnchen Tel.: +49-(0)89-354 02 - 0 Fax: +49 - (0)89-354 02-390Wacker Corporation P.O. Box 9007 Menomonee Falls, WI 53052-9007 Tel. : +1-(1)(262) 255-0500 Fax: +1-(1)(262) 255-0550 Tel. : (800) 770-0957Wacker Asia Pacific Operations Sunley Center, Unit 912, 9/F 9 Wing Qin Street, Kwai Chung, N.T. Hong Kong Tel. + 852 2406 60 32 Fax: + 852 2406 60 21