tm 9-893 light carrier t-15

8/22/2019 Tm 9-893 LIGHT CARRIER T-15

http://slidepdf.com/reader/full/tm-9-893-light-carrier-t-15 1/234

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i c D o m a i n , G o o g l e - d i g i t i z e d

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RDEPARTMENT

ebruary5,1943

15

onofthe •

6\i

eStudebakerCorporation)

tructions

..........1-46-14

....5-1215-25

3-1426

ce.....15— 2027-33

21-2434-39

......25-3240-43

n

4-48

ualcon-

49-54

micals44-47 55-57

Instructions

main-

63

....49-5064-65

tsand

—5266

3-6667-118

.67-72119-128

...73-78129-138

9-84139-147

..85-89148-153

iversal

54-157

TM9-893,September15,1942.

P u b l i c D o m a i n , G o o g l e - d i g i t i z e d

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-15

nInstructions— (Cont.)

-101158-166

ns102-107167-188

ndelec-

3189-218

nt134-138219-221

0222-223


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-15


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15


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-15

structions

s

ntendedtoserve temporarily(pending

ompleterevision)togive informationand

oftheusing armschargedwiththeoperation,

epairsofthismateriel..

rierT-15—Front


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y,andsuchrepairsasmaybehandledby

beundertakenonlyunderthe supervisionof

hanic.

atureoftherepair,modification,orad-

peoffacilitiesof theusingarms,theresponsi-

tbeinformedsothattrained personnelwith

entmaybeprovided,orproper instructions

sTM9-893,datedSeptember15,1942,

edamountofabsolutelyessentialinforma-

are ofvehicle.Theinformationcontained

rierT-15—Rear


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15


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http://slidepdf.com/reader/full/tm-9-893-light-carrier-t-15 10/234 P u b l i c D o m a i n , G o o g l e - d i g i t i z e d

/ h t t p : / / w w w . h





-15

T-15is alowsilhouette,full-tracklaying

earmamentandequipmentforacrewoftwo

eoverdifficultterrainandin combatzones

ablyconstantrateofspeed.Thevehicleis

orcoldweatheroperationwheremostofthe

ce.The vehicleispoweredwithaStude-

,liquid-cooled,6-cylinderenginelocatedat

Theflywheelendof theengineisconnected

eclutch,aconventionaltransmission,apro-

earing typeuniversaljointstothedriving

hicle.Theaxleisofthe planetary2-speedtype

hthetransmission,6forwardgearratios and

fullysuppressedforradioinstallation.

8-gagesheetsteelweldedstructure,

whichareeasilyremovedtofacilitatemain-

perations.Twoplugsandoneplatearepro-

hullfordrainingpurposes.Therearand

uctandthefront wallofthecargoboxesare

e enginecoolingsystemandrearofthe hull.

MODELS.

sinthe vehiclesthemselves.However,

eofradio withwhichthevehiclesareequipped

rdnancerequirements.Fordetailedinforma-

erto thepertinentTM'saslisted insec-

ewithoil,fuelandwater3,390 Ib

ment1,260Ib

650Ib

einch:

racks)3 ft-6in.

shieldperpendicular5ft-7in.

irductand cargoboxes)11ft


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ansmissionpinion70at 3,800rpm

ewithallaccessories(lesstransmission)418Ib

ehull,adjacenttothe driver'sknees,are

erfrominjury whentraversingexceedingly

sealevel

oworsimilarsurface:

milespergal4% ,,

utrefueling115

mate)300milesperqt

faceat3,000ftelevation25mph

surfaceat3,000ftelevation35 mph

terrain

nespeed,

TOTHI

M9

ferencePlate


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15


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-15

SOUTHBEND,IND.

5

G

cationPlate

gability,

000ftelevation,

g

000ftelevation,

Videg

deg

gle79deg

tofvehicle(vehicle—lesscrew

ckline(vehicle—lesscrewand

atvehiclewillcross5 ft-1in.

e,suchasawall,thatvehicle


/ h t t p : / / w w w . h





LS

ntrols5

NONCONTROLS.

kcontrolisautomaticandis variedto

itionsbyagovernorwithinthe distributor.

chokingofthecarburetorforcoldstarts

ingthecarburetorchokecontrol.Thecontrol

strumentpanel andisreadilyaccessibleto

10).RefertoStartingInstructions,para-

rmation.

esired(asduringengine warm-up

nginecan besetbypullingout thecar-

heinstrumentpanel.

eratorpedal,accessibletothedriver's right

positivecontrolofenginespeed.

glevers,accessibletothedriver'sright

ndividualrotationof thedrivewheels

ever,whenmovedrearwardby theoperator,

rivetrackthroughthefront axleplanetary

cletoturn totheleft.Theright steeringlever,

llcausethevehicletoturnto theright.The

whenthevehicleis movinginreversewith

whichthe driverisfacing;i.e.,whenthe left

wardthe vehiclewillturntowardthemuffler

ghtsteeringleveris pulledrearwardthe

egasolinetankside. Thedesignoftheaxle

trackissloweddown,theoppositetrack

hevehiclehaspowersteeringavailablewhen-

operation.Thesteeringleversaremounted

using andareconnectedbylinkstothe

rollingtheindividualspeedsofthe drive


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-15

ndControls

simultaneouslyonbothsteeringlevers

ehicle.Ifenougheffortisapplied,suchaction

clutchisnotreleasedinstopping,the engine

hislocatedin theclutchhousingimme-

e(fig.8). Theclutchiscontrolledbya pedal


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OLS

WITCH

MPASSLAMPSWITCH

ON

AMPSANDREARMARKERLAMPSWITCH

TOR

LAMP

TERSWITCH

CONTROL

LECONTROL

L

OTECONTROLSHIFTLEVER

49339B

umentsandControls


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-15

eftfoot.Thepedal isconnectedbyacable

heclutchreleaseshaftlever locatedatthe

mblyunitlocatedatthe frontoftheclutch

djustablelinkagetothetransmissionremote

he leverisjustaheadof thedriver'sseat.

leverfromneutral(center)positionto the

thelowspeedposition;to theleftandforward

fromneutraltothe rightandforwardengages

;whilemovingtheleverto therightandrear-

edposition(fig.11).

eds.Theaxlegearshift levercontrolling

e leftofcenterandjust aheadofthedriver's

wardengagestheaxlehigh speedgear,while

estheaxlelowspeedgear (fig.11).Thus,

eeds,thereare available6gearratiosforward

riorlights:aspotlightatthe rightfront

hawidefrontalrange andamarkerlightat

e.Also,thereare2instrumentpanellights

htis controlledbyaseparateswitchonthe

rmarkerlightis includedintheinstrument

hemarkerlightburnswhenthe2 instrument

EM

NBOTTOMOFHULL.

ADIATOROUTLETAND

TSIDEOFCYL.BLOCK.

ORATION

ng,andCoolingSystemDrainInstruction


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a t h i t r u s t . o r g / a c c e s s_ u s e # p d - g o o g l e



LS

tricheatingelementtypewindshield

aybe mountedbyrubbersuctioncupsto

hielddefrosterisoperatedbya switchon

gacoldengine,apump-typeengine

wgasolineintotheintakemanifold.Tooper-

outwardand thenpushinbrisklyon the

heinstrumentpanel.

inseverecoldisa dilutingdevicewhich

stheoilsupplyintheoil pan,thuslessening

nginestartingbecauseofcongealedoil.If

obecomepartiallysolidified,anextremeover-

erywhich,insuchweather,isnotup topeak

dbya3-wayvalveconnectedtothefuel

nedinonedirection,thevalvewill permit

nkinto asmallgasolinereservoirabovethe

urnedin theoppositedirection,gasoline

anfromthereservoir.Whenthevalveis at

pipesto theoilpanand tothefueltankare

emanuallyoperatedjustbeforestoppingthe

inedamountofgasoline(refer tothedilution

dfirstto thereservoirandthentothe oilpan.

TION.

vehicleconsistsoftwomenandforthe

menmustsharetheinspectionworkasdirected

overthecompletevehicle.

water leakageintotheinteriorofthe hull

s.Thischeckshouldincludeaninspectionof

heaterconnections,andtheradiator.Check

iresandcoilwires areinplaceandthat there

spthe counter-balanceofthemanifoldheat

isfreeandnot seizedineithertheopen or

coolantintheradiatorandtest thestrength

s used.Addliquidorstrengthenthe anti-

el.Add oilasrequired.


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-15

ansmissionoilleaks.Reportleakageto

leaksat theaxleunit.Reportleakage

wheels,bogiewheels,rearwheels,and

nebyshakingwhetheranyloosenessexists.

ndthe rearwheeltensionsprings.Noteif

esandif thereboundclipsareintact;also,if

hedrive trackgrouserplatesandgrous-

grousersneedtobe replaced.Checkthe

902836suppliedaspart ofthevehicletool

racktensionshould bereadjusted.

mentto makesureitisoperatingand

uisherfromitsmountingbracket,check

et,anddetermineifthe extinguisherisfilled

vehicletoolsandpioneerequipment;

f anyrequirereplacement.

versforfreenesson theirpivotsandat

ansmissionremotecontrolandaxle gear

necessary,oilallofthelever linkagein-

atorandclutch.Seethatthe clutchhasat

vementattheclutchpedalbeforedisengage-

panel.Theammeterhandshouldremain

their"OFF"positions.Theoilpressuregage

dtheheatindicatorandfuel gagehandsshould

ns.

erswitch,notethereadingandwhether

pburns;thenopenthe switch.Lightalllamps

ding;thenopenthe lampswitches.Checkto

markerlamp,andthe instrumentpanellamps

tervalveisclosed.

dammunitionareingoodconditionand

rations,blankets,firstaid kits,etc.,and

andstoredcorrectly.


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LS

asolinewithanoctaneratingof80 should

or nearsealevel.At3,000ft altitude70

edsatisfactorily.

NS.

mpartmentlidopen,press thestarter

gineseveralrevolutions.Therearairduct

ould havebeendonepreviouslywhenthe

oftheprimerwill dependontheprevailing

ornottheengineis alreadywarm.Forcold

emperature,usetheprimer bypumpingit

ngonthe temperature.Forbestresults,pull

arwardslowly;thenpushit forwardbriskly.

use oftheprimermayeasilyadd tothe

ngine isflooded.

econtrolbuttonoutwardtothe fullchoke

aldownaboutone-thirdofits normal

nremotecontrolshift leverisinneutral.

tch.

todisengagethe clutchfromtheengine

terpushbutton untiltheenginebeginsfiring.

themomenttheenginestarts tofire.Ifthe

tly,investigateatoncebecausecontinued

he startermotorwillonlyresultin discharg-

gthe cylinderswithgasoline.Donothold

tsclosedpositionformorethan 30seconds

towarmit.Assoon astheenginestartsto

penthechokevalvebypushingin onthe

button.Donotopenthechokevalvetoo

omeswarm,allowthethrottletocloseby

pedal.Graduallyengagetheclutchbyreleasing

easethe clutchquicklybecausecongealed

representtoogreataload forthecoldengine

peraturerises,the closedrearairductlid

openedasrequiredfornormalenginetem-

dedwiththeequipmentofthevehicle

engine.Whenitis knownthatthebattery

energyinthebatterywillbe neededtodeliver


/ h t t p : / / w w w . h





-15

allycranktheengineseveraltimes before

ch.Thismethodis preferabletotowing.

rank,thecrankguidecovermustbe removed

ounterclockwisedirectionone-quarterturn.

nk,besure toreinstallthecoversecurely.

storedwith thevehicleequipmentafteruse.

chthe oilpressuregage.Theengineoil

ximum,approximately40pounds,withinnot

rtheengine starts.Ifnooil pressureisindi-

mediatelyandinvestigate.

ehandofthe ammetershouldmoveim-

coldengine,theamountofchargeshouldbe

teof33 to35ampereswiththe enginerun-

rottle.

ooperatingtemperature(lessthan 10

dforthis), theenginetemperatureindicator

ly175F.Ifthetemperaturerisesappreciably

air ductlidisopen.I fthecoverisopen,in-

overheating.Thefanbeltmaybeslipping or

angerouslylow.CAUTION:Ifithas been

ngineinan overheatedconditionandthecool-

tothe boilingpointasindicatedbythe engine

notatonceremovetheradiatorcapto replace

steamtoescapethroughthe radiatorover-

ealingcapcounterclockwisetoits firststop.

owedsevereburnsmaybeinflictedonthe

eam.Undertheconditionsoutlined,donot

unlesstheengineisrunning becauseacracked

eadmayresult.Ifantifreezesolutionis in

ecoolingsystemmustbeatleast ofthesame

eadyinthe systemiftheprotectionisto be

heresultantsolutionmustbe testedafter

dded.

oisesemanatingfromthe engineortrans-

seis detected,eitherinvestigateandcorrect

othatathoroughinvestigationmaybe made.

CLE.

eratethevehicle,thedrivermust become

elocationandfeelofall thecontrols.

llbeoperatedin theaxlehighgearrange.


/ h t t p : / / w w w . h





LS

verintothelowgear rangeifdifficultterrain

ltoovercometheeffortof theclutchpres-

ddirectionisforward,movethetransmission

hefirst speedposition(low).Graduallyen-

gtheleft foot(depressingtheclutchpedal)

ward«bytheclutchpressurespringsand,atthe

celeratorpedalsufficientlytopermittheengine

movethe weightofthevehicle.

mentumandtheengine ceasestolabor,

llowtheacceleratorpedaltorise and,atthe

missiongearsto thesecondspeedposition

celerateandengagetheclutchslowly.

thethird speedposition(high).

e vehiclerearward,followtheprocedure

etransmissiongearsintothereverseposition.

edtochangethe transmissiongearstothe

backontheleftsteeringlever tomake

heright steeringleverforaright turn.The

ctlyproportionaltotheextenttowhicha

ward.Thedriver mustanticipateaturnand

powerneededbysimultaneouslypullingback

depressingtheacceleratorpedalaslightaddi-

lbackslowlyonbothsteeringlevers,de-

releasethe acceleratorpedal—allinone

ses,aswhenencounteringheavyterrainor

willnot benecessarytoapplymuchbraking

sunless thegradeissteepenoughto require

llingbackward.Afterthevehiclecomesto

sionremotecontrolshiftleverto neutraland

.

gage,ammeter,andenginetemperature

ssibletrouble.Whenanyofthe gagesbecome

eadings,investigateimmediatelythecause

E.

nefora haltofseveralhoursduring

10Forlower),operatetheoil dilutertoadmit

ine(referto dilutionchart—par.56)into

uting theoilwithgasoline,operatetheengine

tidling speedtoallowcompletemixing.


/ h t t p : / / w w w . h





-15

tchand,astheenginerevolvestoa dead

epressingthe acceleratorpedaltoallow

ombustiblemixtureforthenextstart.

NS.

saremountedatthefrontand rearof

ovideaquickmethodofattachinga vehicle

hereareseveralprecautionsthatthe

oubleor unnecessarydelay.Changesof

plishedbyaseriesofshort turnssothatthe

earlyas possible,directlybehindtheone

notdoneanda continuousshortturnis

bleorchainmaybecomeentangledinthe

to thetrackorcable.Whenenteringmuddy

nsnowor ice,ifpossibleavoidturnsof any

ertrackvehicleataspeedgreaterthan 12

e,chain,orropefromthe vehicleor

owingeyeattherear o1'--«Bowingvehicle

pullingisin thep'--'-I tl=ei-owingeye.

certainthattheconnectingcableaoesnotcon-

eleftor righttracks.Estimateinadvancethe

withoutfoulingthecableand tracks.Atevery

tthetowinglineand connections.

n anemergencywherehandcranking

rted bytowing.Theoperatorsofthetwo

roceedasfollows:

cessary.

kecontrolbuttonout asinregularstarting.

speedposition.

o itshighspeedposition.

itch.

epressedandsignal totheoperatorof

ehasgottenwell underway(waitfor

theclutchanddepresstheacceleratorpedal.

sfiring, disengagetheclutch,adjustthe

ttlecontrols,andsignaltothedriver ofthe

neutralandallowtheengineto warm


/ h t t p : / / w w w . h




LS

ineRunning):

ctlyinfrontof thetowedvehicle.

dthetransmissiontolow.

utchpedalandopen thethrottleatthe

greateramountof throttleopeningtocom-

oad.

tosecondgearbefore signalingtheother

tchofthe towedvehicle.Afterthetowing

secondorhigh gear,dependingontheter-

oengagetheclutchofthe towedvehicle.

towedvehiclehassignaledthatthe engine

thetowingcable.


/ h t t p : / / w w w . h




-15

andinformationontheoperation,care,

mamentwiththisvehicle,referto technical

sectionXXIII.Vehiclesdifferinthetype

carried;therefore,thefollowinginformation

fle,cal..30.Thisrifleisstrappedto the

efrontandbesidethe deckcoaming.

eGun,cal..45.Thisgunisstrappedto

ontof thecockpit,totherightof thedriver.

bines,cal..30.Theseriflesarestrapped

ckpit,oneoneitherside oftheassistant

auncherisstrappedtothevehicleleft

besidethe deckcoaming.(Notusedon

owningautomaticrifle.)

f

oundsMagazinesStowed

...30ball30015 onhull

un.45ball37515in hull

hull


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CE

on17

19

insureuninterruptedoperationitis

ehiclebeinspectedsystematicallyaccording

le.

aydevelopina casting.Thisissureto be

hecyclicinspectionsbytheappearanceofan

nce.Inthis way,acostlyinterruptionofserv-

mewillbe forestalled.

ancethroughtheunit ordnanceofficer

echanicalfailures,oranytypeofunsatis-

ayberesultingfromconstructionordesign.

provementoftheinspectionproceduresor

edonactualexperience,shouldlikewisebe

efofOrdnancesothatallusers oftheequip-

om.

scontainingspecificinformationmustbe

mpletelyandshouldcontainthefollowing

nd thecorrectnameofthepartor unit

ncludethe ordnancenameofboththe

herwiththe U.S.registrationnumberand

er.

meandnumberifany.

milesortime(hours,days,andmonths),

thepart orunit.

eand theconditionsorcircumstances

amageoccurred.

andthenameofthe placewherethe


/ h t t p : / / w w w . h





-15

the failingpartorunit.

thenewpart orunitwasobtained.

rsweremade byotherthanordnance

hatsourcethe laborwasprocured.

oreachfailureunlessthere areseveral

calvehicles.Insuchacasea singlereport

outanydifferenceexistinginitem number5.

unitsreportedon,fordisposalinstruc-

nance.

TION.

ne,performtheprestartinginspectionop-

aph6.

OPERATION.

peration,lookforandbealert todetect

rsindicatingan unsatisfactorycondition.

peciallytheammeter,oilpressuregage,and

ator.Undernormalconditionswithafully

eterwillshow8to10 ampereschargewhen

ruising speed.Iftheammetercontinually

geof30 amperesormore,theelectricalsys-

thedifficultycorrectedwithoutdelay.Ifan

eringontheammeter,itis verylikelythat

thinthevoltageand currentregulator.The

replacementtoavoiddamagetothe bat-

will showapproximately40poundspres-

hegagesuddenlydropstozero orstarts

dmakean immediateinvestigation.There

theoil supplymaybetoolow.

der normaloperatingconditions,theen-

orshouldregisterapproximately175F.Ifthe

intothedangerarea,stopthe engineand

abrokenfanbelt orhoseconnectionand

wto apointwherecontinuedoperationis

ntheinstrumentsrecordanyabnormality,

ndthe causeshouldbedeterminedandcor-

orany unusualodorsuchasburningbrake

Noteanysuddenlossof powerorunusual

onditionsmayrevealtroublein thetrack,

e.

daftertroublehasbeendiscovered,itwill

completefailurecanbeavertedunlessan


/ h t t p : / / w w w . h




CE

temporaryrepairs.If thedriverisin doubt

ervedduringoperation,hemust,whentime

sistanceandadvicefromanauthorizedsource.

temsnotedduringtheperiodof opera-

me permits;also,ageneralgoing-overwill

chseemtobe irregularduringoperation

evehiclestopped.

pectionisrecommendedduringthehalt:

swhile theengineisidling.Noteif

haustsystemleaks.Operatethe manifold

(withgloveon handtoavoidburning)to

uel,oil,orwaterleaksunderthe engine,

ecovers,alongthecylinderhead,atthefuel

yheaterhoseconnections,attheoilpressure

thejointbetweentheclutchhousingand

ononbothsides ofthetrackstodeter-

platesareall rightandthatthetension is

ylargelumpsofsnow,ice,orstoneswhichare

perationof thevehicletrack.Noteifthere

brokenandiftherubberguide beltsaresat-

llyforpuncturesor seriousdentswhich

forbrokenseamsat weldedjoints.

eratetheli ghts,testtoseethat theyburn.

ndthe coolantlevelintheradiator.

ha cleanragandtesttheoperationof

operatedwindshieldwipers.

PERATION.

yassignmentmakeaninspectionwhichis

dthan theonedescribedfor"AtHalt".This

suchrepairsascanbemade andanypreventive

andadjustit ifnecessary(par.103a).

heels,guidewheels,bogiewheels,rear

grouserplates,andthesupportsprings.Note

en,or missingparts.Cleanoutanydebris

ystem.


/ h t t p : / / w w w . h




-15

el,addingoil ofthecorrectgradeas

hearmamentandsee thattheyarestowed

lthe lights.

andseethatthe requiredamountisinplace.

ryammunitionandstowit properly.

or.Checktheradiator coolantstrengthif

n,adjustingit ifnecessary.Lookparticu-

eltdeterioration.

gandnote ifanywiresneedreplacing.

veis closed,alllampsareoff,andthat

switchesareopen.

primer.

cockpitandwipeupalloil,water,and

partment.Thecockpitdrainplugislocatedon

oftheassistantdriver'sseat,to theright

.The drainplugisreadilyremovableby

ket,extension,andratchethandle.When

threadsmustbecoatedwithLEAD,white,

ug tightenedsecurely.

NS,

ation.

ntiveMaintenanceOperations

erycompartment

is-

er-

ry

the

pect

bat-

on.

ap

t-

lhoseconnectionsfor

tor

or

t the

anti-


/ h t t p : / / w w w . h




CE

nd

etor

he

ddi-

nd

kthe

tion

for

ondary

ter-

eany

broken

ean

or.

.Ex-

elains

ng

in.

on-

Clean

and

ry.

nd

eoc-

ove

r

nt

st

rfuel

e-

eis free

dle

nd

aner

cover


/ h t t p : / / w w w . h





-15

ccel-

lutch,

stthe

trol

sary.

cap

nuts.

ange

,and

ks.

ngine

ough-

starter

e

kto

nd

dmake

ghten

al

nthe

h

ter

,and

wsand

the

bri-

ed.

the

en

xle

ve

eoff

ase

efiller

nt

-

dthe

e


/ h t t p : / / w w w . h





CE

edalandread-

ere

ement

ch

offthe

arsand re-

em.Reportanydamagedgrouser

enthe

g

ration.

ctionafterOperation"and500-mileinspec-

akebandsand testthesteering.


/ h t t p : / / w w w . h





-15

alpartof preventivemaintenance,deter-

heserviceabilityofpartsandassemblies.

tructionsforthismaterielareconsoli-

e(fig. 12).Thesespecifythepointstobe

ubrication,andthelubricanttobe used.In

eguide,othersmallmovingparts,suchas

elubricatedatfrequentintervals.

maynotbe possibletosupplyacomplete

alledforbythelubricationguideto meetthe

benecessarytomakethebestuseof those

ctionbytheofficerconcerned,inconsultation

epersonnel.

ollowingnotesapplytothelubrication

rencesin theguideitselfareto thesub-

hecorrespondingnumber:

eapplyinglubricant.Lubricateuntilnew

ebearing,unlessotherwisespecified.CAU-

onpointsafterwashingcarrier.

ornormalservice.Forextremecondi-

,sand,mud,snow,dust,etc.,reduceinterval

tionswarrant.

000miles,removeandwashfilterele-

sedcrankcaseoilorengineoil (crankcase

y1,000to3,000miles,dependingonoperat-

cleanerandwashallparts. CAUTION:Keep

anandtight.Proper maintenanceofair

ongenginelife.

ywhenengineishot.Refillto "FULL"

afew minutesandrecheckoillevel.CAU-

geindicatesoilis circulating.Seetable.


/ h t t p : / / w w w . h





LNUMBERlocatedonleftend ofinstrumentpanel.

• Lubricant

.,....2 C6Guidewheels

ENSIONSYS-

of CARRIER

S

%

OE3

OE3

61

nhull)

4

ble)

cup!

)

SE,generalpurpose

ve+32° F.)

d)No.0(+32° F.to0° F.)

rpose

DLUBRICANTSTOBEUSED


/ h t t p : / / w w w . h





-15

0miles,ormoreoftenif necessary,re-

enewingelement,refillcrankcaseto"FULL"

afew minutesandrecheckoillevel.

checklevelwithcarrieronlevelground;

ttocorrectlevel.Drain,flushandrefill as

e.Whendraining,drain immediatelyafter

estol/2 capacitywithOIL,engine,SAE10.

ncasesslowlyforseveralminutesandre-

andrefillcasesto correctlevelwithlubri-

KETS,BOGIEWHEELS,GUIDEWHEELSAND

ckisremovedforrepair,cleanandrepack

neralpurpose,seasonalgrade.Toproperly

justingnutuntilthe wheelturnshardbyhand;

nutin place.

emoveseatsandtunnelshieldsections

pplyGREASE,generalpurpose,seasonal

wsfromreliefvalve.Slipjoint atfrontof

edifferential.

NG.Attimeofclutchdisassemblyforin-

overhaul,coatlightlywithGREASE,general

toprovideeasyassembly.

3,000miles,wipedistributorbreakercam

ralpurpose,seasonalgrade,andlubricate

,engine,crankcasegrade,sparingly.

ry250miles,lubricatetransmissionshift

overhingesandlatches,clutchclevisesand

nwithengineoil(crankcasegrade).

oLUBRICATIONSERVICE.Springs,water

easebearing,tracks.

CATEDATTIMEOFENGINEREMOVALFOR

rter.

ndServiceInstructionsonIndividual

bricationandservicebelow0F,refer

lubricationofthefrontandrear uni-

elcarrier,the transmission,theclutchrelease

age.Figure14illustrates pointsoflubrica-

ntrollinkage,thefrontaxleunit,andthe loca-

plateinthe hull.


/ h t t p : / / w w w . h





LEASE

TH

VEL

ints


/ h t t p : / / w w w . h





-15

G

VEL

VEL

ORWICK

ION

nts


/ h t t p : / / w w w . h





RDS.

structionsarecloselyfollowed,proper

actoryresultsarenotobtained,areport will

fficerresponsibleforthe maintenanceofthe

cordoflubricationservicingwillbekept

materiel.


/ h t t p : / / w w w . h





-15

nting27

9

es32

mustbekeptof eachmotorvehicle

epartment.ForthispurposetheOrdnance

o.7255),generallycalled"LogBook,"is

ndmustaccompanyitatall times.Thisbook

rdofthevehicleandfromit valuableinforma-

andmaintenancerequirementsareobtained.

mustinsistthat accurateentriesbemade.This

canvascovertopreventitfrombecoming

ed.

ordofassignmentmustbedestroyedprior

Also,anyotherpostings regardingtheiden-

stbe removed.

hesourcesofgreatestwearto avehicle.

reallowedto accumulate,particleswillsoon

sto causeunnecessarywearand,ifnotreme-

e'sprotectedmovingpartsareexposed

rreplacement,becarefulnottojar orbrush

byaccidentdirtdoesget intotheparts,it

edoutbeforereassemblinganyparts.

soakeddir^andgrit, soaktheareawith

ppliedwithragsora brush.Continuedsoak-

sothattheycanbescrapedoff.An additional

erveto removeanyofthedepositremaining.

eisavailable,it maybeusedtocleanparts

ensoakedthoroughlywithcleaningsolvent.


/ h t t p : / / w w w . h





sedaroundtheengine,caremustbe exercised

ectricalapparatus.

omecloggedmustbecleanedwithapiece

drillpoint heldinthehands.It isnotadvis-

hepoint maybreakoffinthehole andaddto

eananddecontaminatevehiclesthat

asattack.SeesectionIX on"MaterielAf-

etailsofthisoperation.

NONPAINTING.

ntedbeforeissuetothe usingarmsand

ryearwillordinarilybeamplefor protection.

for protectionandforcamouflagewith

e,lusterless,oneprimerandtwofinishcoats

ure.Newcoats,whenrequired,maybeap-

eoriginal,providedthefinishis notcrackedor

ssarytoresurfaceanyareassoaffected.

inishingisusuallyissued readyforuseand

g orspraying.Ifthefinish istobeapplied

han 5percentbyvolumewithTHINNER,for

namelisto besprayed,thinningto15percent

t consistency.Useonlythereducersfurnished

hissprayed,itwill dryhardenoughforre-

hard in16hours.

tandinstrumentsarenotto bepainted.

TING.

materielisin poorcondition,itismorede-

tfromthesurfacethanto usesandingand

tripping,itwill'thenbenecessaryto applya

etic,shouldbeusedonwoodasa base

Itmaybeappliedeither bybrushingorspray-

orilyasreceivedoraftertheadditionofnot

umeof THINNER.Itwillbedryenoughto

ard in5to 7hours.Forspraying,itmaybe

15 percentbyvolumeofTHINNER.

nhibiting,forbaremetal,shouldbeused

suseandapplicationis similartothatoutlined

paintingdependspartlyontheselectionof a

elyuponthe careusedinpreparingthesurface


/ h t t p : / / w w w . h





-15

tobepaintedshouldbe freefromrust,grease,

ustbedry.

FACES.

dofcleaningtheyshouldbe washedina

fVia-poundofSODAASHin8 quartsofwarm

ution;thenrinsedin clearwaterandwiped

sinneedof cleaningshouldbetreatedinthe

linesolutionmustnot beleftonformore thana

cesshouldbewipeddry assoonastheyare

nishisin fairconditionandonlymarredin

dbetouchedup withENAMEL,synthetic,

mittedtodry.Thetouchedupareas shouldbe

APER,flint,No.1.Afteralldust andsandhas

withENAMEL,synthetic,white,lusterless,and

eforeusingthe equipment.Ifthesurfaceis

eandwearandthereis noindicationoffinish

ndcracking,sandtheentiresurfacewith

RIMER,ground,synthetic,andallowtodry

theprimedsurfacewithPAPER,flint,No.00,

yafinishcoatofENAMEL,synthetic,white,

todry thoroughlybeforethematerielisused.

GE.

jorconsiderationinpaintingordnancevehi-

econdary.Thecamouflageplanemployedat

ors:color,gloss,andstenciling.

thisvehicledefinitelyservesascamou-

or themetalhullandexposedworkingparts.

atesoversnowandice,itis importantthatthe

t alltimes.Whenrepairsaremadewhich

redareasshouldbe repaintedwhenevertime

tic,white,lusterless,usedinthefinishof

rregularcamouflagingmarksofPAINT,gaso-

ess,makeitdifficulttosee thevehiclefromthe

distancesoverland. Forthesereasons,a

besubstitutedfor thelusterlessfinishwhen

ationnumbersofthisvehiclearein blue

cannotbephotographedfromtheair, andare

ancesexceeding75feet.


/ h t t p : / / w w w . h





e.

tionorrubbingactiononthis vehicle'slus-

therubbedareasbecomingglossy,stepsshould

ction.Donot washthevehiclemorethan

ng,dowhatrubbingis necessarywithasponge

ubany surfacesexceptwhenwet.

eplusterless finishedvehiclesascleanas

wever,greasespotsorany soilwhichshowsup

kept toaminimumthroughtheuse ofSOL-

ax-treatedtarpaulinswillproduceagloss

withSOLVENT,dry-cleaning.

ateachyearis recommended,butthismay

edbyacarefulinspection.Theidentification

ngtwiceayear.

s,thepaintmaybecomesothickas tocrack

sentinganunsightly appearance.Ifsuchisthe

withpaintremoveror alime-and-lyesolution

t isimportantthateverytraceofthe solu-

becompletelyrinsedoffandthattheequipment

ntingisattempted.Thesurfacethuspre-

cordingtodirectionsinparagraphs27 and28.

NGDEVICES.

ewvehiclesarenotpaintedas describedin

reasefittings,oilplugs,and oilholesaswellas

aof3/4inch shouldbepaintedwithENAMEL,

erto facilitatelubricationbydefinitelyiden-

s.


/ h t t p : / / w w w . h





-15

ONVEHICLE

sionspringrelease,SD902748

80

n,SD902836

4715

ch,SD664327

664713

42

D196761

64321

e,15-in.,SD664666

en-end,12-in.,crescenttype,SD664665

nd,3/8-in.-yi6-in.,SD664330

nd,l/2-m.-1%2-in.,SD634331

nd,%Q-m.-iy\6-m.,SD634332

nd,s/8-in.-2%2-in.,SD634333

nd,3/4-in.-y8-in.,SD634334

ug,^0-in.,SD512819

co

4


/ h t t p : / / w w w . h





ONVEHICLE

(2)

roll)

taining

under


/ h t t p : / / w w w . h





15


/ h t t p : / / w w w . h





NVEHICLE


/ h t t p : / / w w w . h





-15

on

entlid

tmentlid

compartmentlid

rearcompartment


/ h t t p : / / w w w . h





SUALCONDITIONS

em40

43

tenanceofthisvehicleatlow tempera-

chdonotexistat normaltemperatures.There-

aintenancepersonnelmustspendmoretime

protectivemaintenance.Failuretogivethe

equiredwillresultin damage,lossoftime,

ties.

ebeendividedintotworanges:—10F to

ubricantsundergochangesintheirphysical

ndsincetheremaybe instanceswhenthe

temperatures,auxiliaryheattothe engine,

berequired.

iclearewithintheengine compartment;

ficecrystalsfromsmallquantitiesofwaterin

atingdifficultiesifthetemperatureis low

cautionsshouldbeadheredtoinan effort

ulationinthefueltankof thevehicle:

npouringor pumpingitintothefuel

ouchthenozzleofthefillerhoseor can

olinestartstoflow.Thiswill dischargeany

ty.

efueltank full.Thiswillreducecon-

mthefreeair spaceabovethefuel.

ndrumswhichhavenotbeencleaned

msdry;instead,allowabout4inchesof

.Thisresiduecanbetransferredlaterto a


/ h t t p : / / w w w . h





-15

ermits,allowafull drumoffuelto settlefor

ved.Keepportablefuelpumpscleanand

ndfrost.Protectthevehiclefueltank against

matterwhilefilling.

beenopened,besurethat theplugis

tryofany foreignmatter.Whenpossiblestore

.

onnectionsonthevehiclearetight and

mes.

N.

eredinsectionV.However,thefollow-

precautionswillsupplementthelubrication

ableonlywhentemperaturesremaincon-

g periods:

ilable,storethevehicleinside.Whereno

avortoparkthevehiclewhereit willbepro-

turalmeans.

toredoutsideandif therearenonatural

ginecarefully.

srequired(par.56).Thefollowingtable

inewhichshouldbeadded totheengineoil

Diluent

wasnotoperatedprior tothelasttime

will probablybenecessarytodirectheat

he enginecompartmentinordertothin

eratingwithdilutedoil,theoil consump-

siderably.Specialattentionshouldbegiven

pressure gageandtheoillevel inthepanas

Also,checktheoil frequentlyforsludgeand

.Changetheengineoilasoftenasrequiredto

ntslubricatedwithan oilcan.

nswhereitis absolutelyessentialfor

it maybeconsideredadvisabletoinstitute

ksbyoneorseveralexperiencedoperators


/ h t t p : / / w w w . h





SUALCONDITIONS

tostartall theenginesofthevehiclescom-

engineshouldberun fora5-to 10-minute

becomingcompletelycoldandtoassurequick

efrequencyofthecheckand thetimethe

bevariedto suittheconditionsencountered.

foraperiodicwarm-up,setthehandthrottle

e ammeterregisterscharge.

KAGE.

anto lubricatethelinkageofthesteering

dtransmission.

anypoints aboutthevehiclenormallyre-

extremelylowtemperaturesitis impossible

possibleafterusingdilutedoil.onbearings

,replacetheoilwiththe greasespecifiedfor

done,shortenthefrequencyofthelubrication

ersaljointsshould notrequireanyspe-

However,whenperformingtheregularroutine

eratingconditions,theuniversaljointneedle

withanyoil thatwillflow,butit mustbe

raturesjustifyachange.

INGSYSTEM.

estone)isrecommendedforuseas

wever,whereETHYLENEGLYCOLisnot

tured,maybeused.Thefollowingtablegives

NEGLYCOLorALCOHOLwhichmust

coolingsystemagainstfreezingatvarious

QViU.S.at8* Imp,at

—aor—40F—30f

. 5

3.754.1455.4

7. 5

4.1455.46.25


/ h t t p : / / w w w . h





-15

ezeSolution.

mthoroughlybyflushingthe radiator

telytoavoidanytransferofsedimentfrom

sible,flush thecylinderblockandradiatorin

hichthecoolantnormallyflows.Iti salso

atelytheheaterforthebatterycompartment.

sedhoses,coattheinteriorends ofthe

sic-carbonate,andtightenthehoseclamps

aceit ifnecessary,andadjustthebelt

presentatthewaterpump,cylinder

xpansionplugs.Eliminateanyleaksfound.

savailable,mixtheantifreezesolution

oolingsystem;otherwise,pourinsmall

oughlymixthesolutionwithinthesystem.

minutesatafast idlespeedtocirculate

heckthebrushes,commutators,and

artingrequiresacleanstartercommutator

atteryup tooperatingefficiency,thegen-

ushesmustbeclean,withgoodbrushto

nall electricalconnections.Removeany

ebatteryconnectionsandwipethetopof

ecktobesurethe ignitioncoilandignition

unctioningproperly.

tributorand capcleanbothinsideand

tscleanandadjusted properlyat0.020inch

ointswhennecessary.

ugsshould becleanedandadjusted

werbatteryandcoilefficiencyinextremely

uggapclearancemustbeset accuratelyat

timingin properadjustmentandcheck

efficiencyofabatterywilldecreaseto

elow—40F.However,thisvehicleisequipped

he batterycompartmentislinedwithspecial

hebatteryiskeptwarmduring vehicle


/ h t t p : / / w w w . h





SUALCONDITIONS

onnectedintothecoolingsystem,and the

totheleft ofthebatterycompartment.Thus,

rtsmaybemadein temperaturesof—40F,

tfree withthediluterandthe batteryis

edstate.Testthe batteryfrequentlywitha

edbatterywilltestbetween1.275and1.300.

hargeditis unlikelythatitwillfreezewithin

ompartment,butacompletelydischarged

ndgroundconnectionsmustbeclean

oidhighresistanceatthese points.

estartermakesure theengineprestarting

nfollowedcloselyandthat thereisnoice

gineelectricalequipment.Also,inextremely

neshouldbecrankedbyhandto savethe

kof highintensity.Whenthestarteris cold,

ontactfornot morethan30secondsata time.

ATION.

0Fto—40 F.

stmentsareestablishedcorrectly,theoil

eris used,andthebatteryisfully charged,a

eratureof—40F.

eisin readinessforstartingandfollow

ar.8).Whenthe enginebeginstofire,attempt

tion,atverylowtemperaturesitis necessary

gthetimeof thestart;andevenafterthe

etimesnecessarytocontinuethemanual

kethemistakeofopeningthe carburetor

thebutton) tooquickly.Iftheenginefires

en stops,water(anaturalproductofcom-

oldinnersurfacesoftheengineandturn to

nditionwilladdgreatlytothe difficultyof

ningnormallyandthecarburetorchoke

atetheengineata fastidlespeeduntilthe

atureoftheengineisreached,asregisteredon

djustandreadjustthe rearairductlid as

medthoroughly,operatethevehiclefirst

agitateandcirculatetheoil inthetransmis-


/ h t t p : / / w w w . h





-15

40F.

eenexposedto extremelylowtempera-

e,itwillbe necessarytoheattheoilpan,

fuel.Whenpossibleusea fullychargedbat-

naprotectedplace.Eveninsucha caseit

batteryforcrankingtheengine.If theattempt

ils,tow thevehicle.

previously,it wouldbebetterforthe

e enginewerestartedatfrequentperiodic

riodof thehalt.Suchaprocedurekeepsthe

rtmentswarmandmakesstartingarelatively

gine,operatethediluter usingtheamount

mendedforthetemperaturebeingencountered

eed,turnthe ignitionswitchoff,andlet

onanopenthrottle.This practicewillnot

productsofcombustion,butthecylinders

ullchargeofcombustiblemixture.

ESSORIES.

yatentor largetarpaulininconnection

dbya fire,portablestove,orsomeother

keeptheheat fromthefireor thestove

eep thewindout,theenginecanbe started

weatherprecautionshavebeentaken.Means

orevena shelterorcoverarenotalways

uggestionismadeonlyasa reminderthat

beusedto decreasethehazardsofextremely

n.

etohaveextrafullychargedbatteries

r airductlidmustbe kepttokeepthe

aloperatingtemperaturewhiletheengineis

ouldbefullyclosedwhile theengineisbeing


/ h t t p : / / w w w . h





HEMICALS

tomotivemateriel47

ell,andchemicalsprayarethemajorchemi-

estroyingordamagingmateriel.Removingor

iquidorsolidchemicalagentsspreadby these

sechemicalagentstoharmlesssubstancesis

RES.

ammunition)isinconstantdangerof

plyalightcoatofseasonalgradeengineoil to

kecarethattheoil doesnottouchtheoptical

theror canvasfittings.Protectmaterielnot

spossible.Keepammunitioninsealedcon-

acticallynoprotectionagainstmustard

oilcloth,forexample,willbe penetrated

ger theperiodofexposure,thegreaterthe

deofeitherofthesematerialsis worn.Rubber

mustardgasmayofferagravedangerto men

ysaftertheattack.Impermeableclothing,

rationofchemicals,willresistpenetration

emaximumtimesuchclothingcanbeworn

ummerandabout30 minutesinwinter.

vesicants(mustard,lewisite,etc.)from

psshouldbetaken:

onsaservicegasmaskanda complete

eitherpermeableorimpermeabledepending

ation,mustbeworn.Immediatelyafterremov-

thwithsoapandwater(preferablyhot)must

havecomeincontactwithliquidorvapor

orofmustardhasbeeninhaled,it isimperative

asuresbegivenwithin5minutesto beeffective


/ h t t p : / / w w w . h





-15

ust bepromptforlittlecanbe donelaterthan

posure.

esicants(mustard,lewisite,etc.)orby

lvesicants,etc.)shouldbeimmediately

inatedarea.

emovethecontaminatedclothing.Ifthe

ashtheeyesandrinse thenoseandthroatwith

aksodiumbicarbonate,orcommonsaltsolu-

areas wetwithliquidmustardshouldbe

dlyswabbedwithasolvent,suchaskerosene,

etrachloride.Thenwashthoroughlywith

.Toreducehis oxygenrequirements,make

phimwarmand givehimnonalcoholicstimu-

tea.Heshouldbeevacuatedassoonas possible

uctionstosupplementtheabovegeneral

inFM21-40.

entsexposedtovesicants.Ifimpermeable

dtovaporonly,it maybedecontaminatedby

referablyinsunlight,forseveraldays.Itmay

ngfor2 hours.Ifimpermeableclothinghas

quidvesicantgases,steamitfor6 to8hours.

devicescanbeimprovisedfromequipment

materielofdirtthroughthe useofsticks,

othercleaningitemsusedin decontamination

mmediatelyaftertheiruse.

terieliscoatedwithgreaseor heavyoil,

minationisbegun.Forthiscleaninguse

otheravailablesolventsforoil, appliedon

f sticks.

ntedsurfacesofthematerielwithbleach-

gequalparts byweightofAGENT,decon-

e),andwater.Solargea proportionof

dtothewaterthat onlyasmallpart isdis-

sion,or"slurry"isformed.Thisslurry should

es.Washoffthoroughlywithwater,thendry

tsof materielthathavebeenexposedto

ndlewisitemustbe cleanedassoonaspossible

ng,orALCOHOL,denatured,andwipeddry.

oatedwithoil.


/ h t t p : / / w w w . h





HEMICALS

tsand instrumentsexposedtomustard

aminatedwithAGENT,decontaminating,

partsolidto15parts solvent(ACETYLENE

ht.Ifthisis notavailable,usewarm

gslurrymustnotbe used,becauseofitscorro-

etalparts.Afterdecontamination,wipeall

atthemlightlywith engineoil,exceptthe

ichmustbecoatedwithOIL,lubricating,

mentlensesmaybecleanedonlywithPAPER,

mountof ALCOHOL,ethyl.

ating(chlorideoflime)isnot available,

ilycleanedwithlargevolumesofhotwater.

nginjointsor inleatherorcanvaswebbing

cedureandwillremainaconstantsourceof

anbe properlydecontaminated.Becauseall

materielliesunchangedontheground,the

kedwithwarningsigns beforeabandonment.

bingthathasbeen contaminatedshould

thbleachingslurry.Ifthistreatmentis believed

essarytoburnor burysuchmateriel.

beenexposedtovesicantgasmustbe

efiring.TocleanammunitionuseAGENT,

osive,orifthisis notavailable,strongsoap

aning,wipeallammunitiondrywithclean

deredAGENT,decontaminating(chlorideof

natingcertaintypesofmaterielonor near

flamingoccurswhenittouchesliquidmustard.

ndecontaminationiscontainedinFM21-

SFORAUTOMOTIVEMATERIEL.

subjectedto gasattackwiththeengine

anerbyremovingtheoil, flushingwith

drefillingwiththeproper gradeofoil.

dbecleanedin thesamemannerasinstru-

eatcushions.

entsthoroughlywithbleachingslurryis

einthefield.In warmweather,operatorsshould

or slowvaporizationofthemustardorlewisite.

eriorsurfacesofthevehiclewithbleaching

necessaryafterthisoperation.


/ h t t p : / / w w w . h





-15

nstructions

NMAINTENANCE

48

ENANCE.

ntenanceandrepairbythe crewand

msisdeterminedbytheavailabilityofsuitable

saryparts,capabilitiesofthemechanics,time

situation.Alloftheseare variableandnoexact

eprescribed.

ce.Indicatedbelowarethemaintenance

arts havebeenprovidedfortheusingarm

mentsandrepairsaretheresponsibilityof

ersonnelbutmaybe performedbyusingarm

ancespermit,withinthediscretionofthecom-

onsandwordsasusedinthislist ofmaintenance

ollows:

ganizationregiments,battalions,companies,

tecompanies.

celightmaintenancecompanies,ordnance

mpanies,ordnancedivisionalmaintenance

nceshops.

nceheavymaintenancecompanies,andservice

cebaseregiments,ordnancebases,arsenals,

s.

stsofservicing,cleaning,lubricating,tighten-

tsandnuts,andmakingexternaladjust-

of subassembliesorassembliesandcon-

tsofremovingthepart,subassemblyoras-

romthevehiclesandreplacingit with

conditionedorrebuiltpart, subassem-

erthecasemaybe.


/ h t t p : / / w w w . h




NMAINTENANCE

ofmakingrepairsto,orr eplacementofthe

assemblyorassemblythatcanbeaccom-

withoutcompletelydisassemblingthe

rassemblies,anddoesnot require

,machining,fitting

.

sofcompletelyreconditioningandreplacing

eableconditionanyunserviceablepart,

mblyorassemblyofthevehicle,including

ting,machining,fitting,alining,bal-

sting.

edwillnormallybeperformedinthe

Operationsallocatedtotheechelonsasindi-

mplishedbytherespectiveechelonsinemer-

adjustandreplacex

x

Ex

ch,steering,transmission,

handlowrange)]—

ch,steering,transmission,

handlowrange)]—

acex

irx

ildEx

MISSION

djust)x

pairandreline x

on(highandlowrange)

on(highandlowrange)

on(highandlowrange)


/ h t t p : / / w w w . h




-15

(generatorcontrol)—



battery—replacex

battery—repairEx

aceandrepairx

eplacex

—replacex

—repairx

bly—replacex

bly—repairx

bly—rebuild'.x

onbox—replacex

onbox—repairx

—replaceEE x

adjustandreplacex

ndition)Ex

erviceandreplacex

pairx

ondition)Ex

—replacex

—repairx

e* x

x

dEx

nes—serviceandreplacex

uthorizedtoremoveandreinstallenginetransmissionassemblies,

ferentialassemblyandotheritemsmarkedbyasterisk.However,when

n itemmarkedbyanasteriskwitha neworrebuiltpart,sub-assembly

mblymarkedbyasteriskwill notberemovedfromthevehiclebythe

orizationisreceivedfromahigherechelon.


/ h t t p : / / w w w . h





NMAINTENANCE

nes—repairx

acex

arx

ud(recondition)Ex

ead,manifold)—replacex

placex

pair-....x

buildx

—replaceEx

—repairx

—rebuild(recondition)...EX

nternal—replaceand

keassembly—replace...x

keassembly—repair....x

—replacex

—repairx

—rebuild-..x

e(clean)x

eandrepairx

eEEx

placex

pairx

buildx

aceandrepairx

ildEx

eplacex

epairx

ebuild...x

BLY)

eplace'.x

bly—replacex

pairx

buildx


/ h t t p : / / w w w . h





-15

pairx

—replacex

TEM

eandrechargex

x

dEx

eplacex

epairEx

replacex

repairx

rebuildx

lacex

airx

uildEx

x

ndition)Ex

y—replacex

y—repairx

y—rebuildEx

S

eplacex

epairx

ebuildEx

,external—replacex

,external—repairx

rsaljoints—replacex

rsaljoints—repairx

rsaljoints—rebuildEx


/ h t t p : / / w w w . h





NMAINTENANCE

ex

x

Ex

aceandrepairx

uildEx

ortingroller—replaceand

wheelandidler—replace..x

y—replaceandrepairx

—rebuildEx

cex

rx

ldEx

replacex

repairx

rebuildEx

ndrepairx

Ex

placex

pairx

buildEx

Y

replace* x

repairx

rebuild.. Ex

ithserviceableassemblies)xE

thorizedtoremoveandreinstallenginetransmissionassemblies,

ferentialassemblyandotheritemsmarkedbyasterisk.However,when

n itemmarkedbyanasteriskwitha neworrebuiltpart,sub-assembly

mblymarkedbyasteriskwill notberemovedfromthevehiclebythe

orizationisreceivedfromahigherechelon.


/ h t t p : / / w w w . h





-15

MJ881A

HKMJ53

AC300

6A

G4

UMS40

S196

aringBKMJ270

pointAEE38

ectric,setWMS1285P

heelbearingnutSD903856

MS1090

reextinguisheris carriedonabracket

enginecompartmentbulkhead.Aretaining

hedcatchisused tokeepthefireextinguisher

thefireextinguisher,pullout onthecatch

pand pulltheextinguisheroffitsmounting

0degreescounterclockwisetounlockthepump,

rd.Pushingin onthehandleforcesastream

calfromthenozzle.Bypumpingthehandle

eforcedfromthe nozzle.Thestreamshould

aseof theflame.Aftertheblazehasbeen

playastreamonthesurroundingarea. After

aysmakesurethehandleis pushedalltheway

degreestolock thehandleinthehead and

isnotdonethe fluidwillleak.Thefire


/ h t t p : / / w w w . h





oput outafirein theenginecompartmenteven

g.

erhas beenused,refillitat thefirstop-

uid(CARBONTETRACHLORIDE).After

t leakafterthevalvehasbeenturned com-

ngextinguisher.Theextinguisherisfilledby

thehead.Useasmallfunnel whenpouringin

iscouragetampering,thedrivershouldseal

hissealduringinspections.

tingiusherfluid(CARBONTETRA-

einvaluableindryingoff sparkplugs,the

c.Whenwiringandignitionunits havebe-

timedoesnotpermitsystematicdryingwith

TETRACHLORIDEwillabsorbmoisture

onapparatusorengine.


/ h t t p : / / w w w . h





-15

RTSANDACCESSORIES

51

EPARTS.

arepartsissuppliedto theusingarmfor

partsmostlikelyto becomebroken,worn,or

Thesetiskeptcompletebyrequisitioningnew

nizationsparepartsare listedinpertinent

lsandequipmentrequiredforsuchdis-

ngastheusingarmsare authorizedtoperform,

eservationofthe armament,ammunition,etc.

compartments,covers,toolrolls,andother

tthematerielwhenitis notinuse,or when

ouldnotbeusedforpurposesotherthanas

nuseshould beproperlystored.


/ h t t p : / / w w w . h





data53

d57

BULATEDDATA.

eispoweredwitha6-cylinder,L-head,

fanendoftheenginewill bereferredtoasthe

clutchendasthe frontendoftheengine.The

edto astheleftside,and thegeneratorside

ine.Thecylinderhead,block,andcrankcase

anbelt,waterpump,generator,fuelpump,

r,air cleaner,diluter,manifoldheatcontrol

rkplugsareaccessibleonraisingthe engine

17,and18).

00rpm

0Viqt

418Ib


/ h t t p : / / w w w . h





-15

R

PORT

de

gine.

remov-

ole-

g

ar.

erswitch


/ h t t p : / / w w w . h





ER


/ h t t p : / / w w w . h





-15

nal

d

m-

pushed

as

esole-

after

nd

r(par.

TERVALVE

PORT

e


/ h t t p : / / w w w . h





ercircuit.

ed,or

gine

essing

ck

31).

r.65c).

ndcon-

ine

re-

rade

o Start.

oslow.

scon-

trol

d.

plugs.

aulty

ec-

ewet,

rwet,

akor

dirtyor

tment.

r.65c),

09).

ontrol

ottle

ded

nend

m

ceor

l)or

par.

orre-

e.

bstitute

)

place

iced,

ust

.

ar.


/ h t t p : / / w w w . h





-15

mp

ust-

eor

venly.

ed.

sfiring,

ected.

rned,

ough

rectly

entin-

edor

or be-

nifold.

ng.

gor

es-

nsfuel,

eat

mp

p-

at

n

par.

tallpipe

61b).

con-

units

tasre-

ceplug

ry

ar.

emix-

.

61b).

gorre-

par.

opping

e-

snot


/ h t t p : / / w w w . h





e

ticking.

ng.

tion

and

ksat

pes,

ze

ose

orfit-

ve

ension

75d).

with

ar.60

cceleration.

efuel,

sitsin

djust

se

ve

,

urringaty>CrankshaftSpeed.

lve

mit-

rein-

ump

orbear-

torshaft

wsto

ce

ne

erator

or64

0a).

urringatCrankshaftSpeed.

dbear-Replaceengine(par.55).


/ h t t p : / / w w w . h





-15

CrankshaftSpeed.

Replaceengine(par.55).

donAccelerationUnderLoad.

gine(par.55).

WRENCH,

ENCH,

H,

CH,

nateWRENCH,

ENCH,

pfromVehicle


/ h t t p : / / w w w . h





moval

WRENCH,socket,universal,

Vi-in.

WRENCH,socket,universal,

-,0-in.

ehicletop fromthewindshieldframeand

vethetop(fig.19).Takeoutthe 4cotterpins

owsoutof thesocketsweldedtotheinside

tthebowhaving4eyeletsat thetopandmiddle

nd,9/16-in.

strapsandremovethecushions.Takeout

andlockwashers(%6-in.open-endwrench)

hecockpit.Notethe3possiblefrontseat

etheseatfromthecockpit(fig.20). Takeout

spins(pliers)holdingtheassistantdriver's


/ h t t p : / / w w w . h





-15

andClutchControls(PropellerShaftand


/ h t t p : / / w w w . h





rtmentFrontScreenRemoval

ckets.Lifttheseat outofthebrackets,tipit

mthecockpit.

andDisconnectTransmissionand

H,box,V2-in.

'/,,i-in.

% 6-in.socketandratchethandle)withflat

andremovethepropellershaftcover.Note

ngononeside ofthecovergoestothe right

nuts(Vi-in.box wrench)withlockwashers

andmovethepropellershaftassemblyfor-

onmainshaft(fig. 21).Installadummy

thetransmissionmain shafttopreventlubri-

gineisraised.Disconnecttheclutchandtrans-

kagebyremoving3cotterpinsand clevispins

hreleaseshaftouterleverreturnspring.

rtmentFrontLidScreen.

open-end,%-in.

enginecompartmentfrontlidadjustingarm

ndmovethelid,to acompletelyraisedposition.

rewsthatsecurethefrontlid screentobrackets


/ h t t p : / / w w w . h





-15

ntlidhingesupport,usinga 3/8-inchopen-end

w thebracketandascrewdrivertoturnthe

hescreen(fig.22).Notethata lockwasher

etweenthe nutandundersideofthebracket;

s usedbetweenthescreenandtopsideof the

egroundingatthesepoints.Repeattheopera-

ngthefrontofthescreento bracketsonthe

ge.

rtmentLid.

H,socket,%0-in.

artmentlidandhingesupportbytakingout

-in.box wrench,and%6-in.socketandratchet

s(2oneachside),whichhold thelidhinge

3).Liftoff thelidandhinge assembly.

rtmentFrontLidandHinge.

-in.

n.

cketcapscrewsand lockwashersateach

open-endwrenchonthefront 2screws,and

sal,

rtmentLidRemoval


/ h t t p : / / w w w . h




atchethandleontherear2 screws).Remove

andflatwasher,securingeachend ofthelid

oanangle bracketweldedonthedeckcoaming

7iu-in.socketwrench,andratchethandle).

lockwashers,andflatwashersholdingthe

ead(Viz-in.universalsocketwrenchand

dwithhinge andcrossbracketoffthevehicle.

atclampscrew(screwdriver)andremove

assembly.

rtmentCoverandDisconnectBattery.

NCH,open-end,"/,0-in.

H,socket,'/,,;-in.

ENCH,socket,V2-in.

atwashers,andlockwashersholding the

vertothedeckrearcoaming(yJ,i-in.open-end

twrenchandratchethandle).Removethe7

wrenchandratchethandle)withflatwashers

ngthecovertotheenginecompartmentleft

deckcoaming.Lifttheinsulatedbattery

ard,totheright,andoutofthe enginecompart-

partmentCoverRemoval


/ h t t p : / / w w w . h




-15

andremovethebatterygroundstrappost

)atthenegative(—)poston thebattery,

nateSCREWDRIVER

mdrainplug(screwdriver),locatedonthe

eadofthecrankcasedrainplate.Afterturning

tstoptounsealthe coolingsystem,openthe

outlet pipelocatedinthelowerleft rear

partment.Also,opentheengineblockdrain

heenginetowardthefront.Loosenthe battery

amps(screwdriver)andpullthehosesoff

ezeis inusein thecoolingsystem,savethe

systemhasdrainedcompletely,closethe

drainvalves.Installthe coolingsystemdrain

EAD,white,basic-carbonate,forapositive

rely.

EWDRIVER

H,socket,1-in.

nate

rainhullplatescrews(screwdriver),gasket,

pandrain plug(1-in.socketwrenchexten-

Aftertheoilhas drained,installtheplug

plategasket,plate,andscrews,applying

nate,tothepartsto obtainapositiveseal.

StarterSolenoidSwitch,Regulator,

molitionBombCase,andDemoli-

fig.25).

NCH,open-end,%6-in.

H,open-end,V2-in.

CH,socket,7/16-in.

socket,universal,

n.Vie-in.

leatthestarter solenoidswitchaftertaking

and 3/8-in.open-endwrenches).Remove

onthecurrentandvoltageregulatorand

r).Benddowntheclipontheoffsetat the

fastentheprimerlinesfromthebulkhead.

driver)andnut(%6-in.open-endwrench)

ndchoketubecliptothebulkhead.Takeout

socket,universal,andspeederhandle)holding

hebulkheadtothe bulkheadframe.Remove


/ h t t p : / / w w w . h




moval

ver)andcliptofreethe demolitionwireson

urnand pullouttheplug onthebottomof

olswitchboxandremovethewire running

mtheplug.Removethenut,(~/\<i-in. open-end

ench,extension,andratchethandle)lock-

ullthewiringharnessclipoffthe boltto

therearof thebulkhead.Pushtheloose

eholein thebulkhead.Liftoffthebulkhead

h,regulator,fireextinguisher,anddemolition

FanBladesandPulley,andRadiator

EWDRIVER

H,socket,V2-in.

thlidandspongerubber gasketafter

ws(1/2-in.socketwrench,andratchethandle),

hers,whichsecuretheair ducttotherearof


/ h t t p : / / w w w . h





-15

tadrainplug (Vi-in.head)islocatedinthe

ANDPULLEYANDRADIATORWITHFAN

outlinedin paragraph74c.Removethe4

wrenchandratchethandle)holdingthefan

aterpumpdriveflange.Liftthebladesand

fromwithinthefanshroud,andoff the

orinletupperbaseclampandupper outlet

andpulloffthehoses.Pull offthecylinder

n valveintheradiatoroutletpipe.Using a

,Vi-inchsocketwrench,andpaper,withinthe

swhenloose,removethe6 metalscrews

adiatorflangestotheradiatorframeof the

emoval


/ h t t p : / / w w w . h





/ h t t p : / / w w w . h




-15

roud upwardtoclearthewaterpumpdrive

eassemblyinsucha mannerastopermit

drain valvetoclear.

p,EngineBearMountings,and

NCH,open-end,%6-in.

H,open-end,V2-in.

nd,3/4-in.

socket,V2-in.

undstrapfromthehull (Vi-in.open-end

tension,andratchethandle)byremovingthe

d lockwasher.Takeoutthecotterpins

castellatednuts(3/4-in.boxwrenchand

andflatwashersattheenginerear mounting

ectthewiresatthegeneratorterminals

screwdriver,and%e-in.open-endwrench).

tIndicator,OilPressureGage,Primer

gnitionCoil.

nWRENCH,open-end,T/l,i-in.

n.WRENCH,open-end,%6-in.

n.WRENCH,open-end,s/8-in.

orelementattheright frontsideofthe

n-endwrench).Disconnecttheoil pressuregage

(%6-in.and %,;-in.open-endwrenches)

ne.Disconnecttheprimer suctionpipeatits

ndVi-in.open-endwrenches)abovetheNo.6

nnecttheprimerpiperunningtothe intake

nnection(3/8-in.open-endwrench).Discon-

eat thelowerendofthe flexiblecoupling,using

chonthecouplingandaVi-inchopen-end

sconnecttheharnesswireat theignitioncoil

ThrottleControls.

driver)holdingthethrottlecabletubeclip

sconnectthecarburetorthrottlevalvecontrol

kspringand thecabletothethrottlevalve

tthecarburetorchokecontrolafterloosening

vel-clamp-screwandcable-clamp-screwatthe

driver).

open-end,%0in.( 2)


/ h t t p : / / w w w . h





wo%6-in-open-endwrenches)which

amptothe supportbracketattheleftfrontof

theclamp(screwdriver)andpullthe section

rdandoff thelowersectionoftheexhaustpipe.

tSupport.

NCH,socket,%6-in.

%6-in.socket,extension,andratchethan-

chholdtheenginefront support(transmission

.

KM

ewsNo.9andNo.10(see cylinderhead

.33)witha Ji/i6-inchsocketwrench,exten-

nstallengineliftingeye bolts(HKM-J53)in

d screwsremoved.

ngClutchandTransmission).

yebolts. Fastenhoisttothechainand,after

wires,cables,lines,andconnectionstothe

endisconnected,slowlylifttheweightofthe

ortbracketsandhull frame(fig.28).Move

val


/ h t t p : / / w w w . h





-15

Removal

y,thenupand outofthecompartment,guiding

nguncoupledpipes,wires,andcontrols.

efullpressureenginelubricationsystem

p connectedwithafloatingoilintakescreen,

nderblock,anoil pressurereliefvalve,an

18).Theoil pumpislocatedontheleft side

umpcannotberemovedasa unit,thevarious

othecylinderblock.Helicalgearsareused,

thecamshaftthroughhelicalgearing.

n.

6-in.

n.

-in.

n.

n.


/ h t t p : / / w w w . h





irectedin paragraph55.

evelgage withcap.

etwrench,ratchethandle,anda9/J6-inch

ethe3bolts,nuts,andlockwashersattaching

enginefrontplateandclutchhousing(fig.18).

heengine.

ewsandlockwasherswhichsecurethe

kcase(Vi-in.socketandspeederhandle).

itloosefromthe gaskets(fig.29).

ontactingsurfaces,usingaputtyknife.

rkseal fromtheoilpanfiller blockandthe

e frontmainbearingcap.

paragraph56h.

oceduretoinstallthe oilpan(fig.29).

yanduse newgasketsthroughout.The

thgasketcementtoavoidpossibleleakage.

secapscrewsuniformlytoassurea positive

neto theproperlevelwiththecorrectgrade

ASSAGES

eliefValveConstruction


/ h t t p : / / w w w . h





-15

ctfor leakage.Installtheengineasdirected

oil pumpintakepipecarriesafloating

oiltakenfromthetop surfaceoftheoilin the

hroughthesystem.Stopson thestrainerelbow

fthestrainer.Toremovethe strainer(engine

toremovetheoilpan (par.56e)andtake

whichholdsthestraineronthe intakepipe.

lpassagesaredrilledin thecylinder

stberemovedandcompletelydisassembled

galleries.

e.Thisplungertypevalveis locatedin

wtheleft rearenginesupportbracket.The

assagein whichaspringloadedplungerop-

n thelubricationsystem.Thevalveisnon-

gthenearesttiminggearcoverbolt,nut,and

wrenches)removethevalveplug(7/s-'m.socket

tchethandle)andgaskettomakethespring

g.30).Thetiminggearsare lubricatedwith

alveas wellasfromoilmeteredthrougha

y.Themilitarystandard,replaceable

teris mountedwithbandstoaverticalbracket

portionofthecylinderhead.Theunit filters

disconnectedinthesystemby alinefrom

urntotheoil supplyintheoil pan.

ATION.

s directedinthe"Lubrication"section(V),

in.open-endwrench),coverwithspring,and

plug(yi,i-in.open-endwrench)atthebottom

e todrain,reinstallthedrain plug,andlift

1). Installanewelementandgasket,then

he coverplug.Tightenthecoverplugwitha

h(7-inchlength)untiltight.Theengineshould

nd surroundingareacheckedforoilleakage.

ointandthe tightnessofthedrainand cover

REMOVAL.

ter assembly,disconnecttheoutletpipe

n.open-endwrench).Disconnecttheinlet

ench)fromthefilter.Removethe4filter mount-

s,andlockwashers(Vi-in.open-endwrench


/ h t t p : / / w w w . h





dgeRemoval

xtension,andratchethandle).Holdthefilter

movingthe lastbolt.

semostoftheoperationofthis vehicle

wtemperaturesprevail,therewouldnormally

nstartingduetohigh internalresistancere-

gineoil—especiallyafterahaltofseveralhours

mbatthishazarda diluterhasbeenprovided

leliminatedifficultyinstartingdue tocon-

emconsistsofa smallfuelreservoirof1-quart

fromthefuelpumpto thereservoir;andpiping

oilpan.Sincethediluterreservoirdependson

dthediluentis tobemixedwiththe engine

eratedbeforestoppingtheengine,whenahalt

rlonger isexpected,andtemperatureisbelow

eoil dilutionchart,par.56j shownbelow).


/ h t t p : / / w w w . h





-15

alveisso arrangedthatwhenthehandleis

edandthe diluterisneutral(fig.18). When

erclockwise(lowerendtowardtherear),the

lflowintothereservoirfrom thefuelpump.

clockwise(bottomofhandletowardthe

ndtheoutletisopenedto permitthegasolineto

iluterisoperatedbeforestoppingthe engine

belowdiluter)counterclockwisetothe

olinewill flowintothereservoirfromthe

arkonthediluterfloatindicatorstem

r,Vipint ofgasolinewillhavebeenpumped

efourthmark onthestemhasbeenexposed,

rtcapacity).Turnthevalveclockwisetothe

ertical)tostoptheinflowof gasoline,other-

flow.

movethevalveclockwisetothefull

willallowthe gasolineinthereservoirto flow

stemoftheindicatorhas recededintothe

voiris emptyandthevalvehandlecanbe

position(inlet andoutletclosed).

tidlespeed for5minutesafteroperating

oughlymixtheengineoil withthegasoline.

vewhenthevalvehandleisin avertical

ectmoregasolineintothe oilpanthan

uartshouldbeinjectedasoutlinedpreviously

edasrequiredtoprovide dilutionexactlyin

hart.

Diluent

echart ispredicatedontheuseof OIL,

accordancewiththeoilrecommendationsfor

tmustbebornein mindbythedriverthat

of theengineoilhasbeen provided,4hours

requiredto "crackoff'(dissipate)thegaso-

ftheengine waslaststoppedwhenthe


/ h t t p : / / w w w . h





reesF,thedilutionwas30 percent(IViqt),

peratedforonly2hours,half (3/4qt)ofthe

theoil.Onagaindilutingat theendofthe

rtoffuel mightbeinjectedintotheoil pan

operpercentageofdilutionforthetempera-

ure tore-diluteonlytothe extentmen-

ngthe nextstartwith45percentdilution

lution ascalledforonthe chart.Ifsuch

meaftertime,enginelubricationwouldsuffer

verylikelyoccurtoengineparts.Keep arecord

tedoil isinuseand calculatesucceeding

g protectionrequired.Whenusinggasoline

eratedbytheoperatingenginewillcausethe

issipatedthrough theexhaustsystem.Inthis

yoftheengineoil willbefullyrestoredafter

venthoughthis isadistinctadvantagetothe

,itwillbeabsolutelynecessarythattheoil be

operatingperiodintemperaturesrequiring

ualover-dilutionmayarisefromthe useof

eengineisnotoperatedfor asufficientlength

egasolineindilution.Referto theexample

ussedpreviously.Thediluterrequiresnospecial

comesnecessarytoremovethediluterfor

sconnecttheinletandoutletpipeat thevalve

removethe4bolts,(V-i-in.open-endwrench,

ension,andratchethandle)flatwashers,lock

urethereservoirstraps tothebracket.Ifneces-

movedfromthereservoir(screwdriverand

.

MANIFOLD.

edin paragraph55aifengineis tobe

bly.

hclutchandtransmissionasoutlined in

involvingremovalofthemanifoldor adjust-

ired.

gwiresas outlinedinparagraph59.

viously,loosentheupperradiatorhose

ndpulloffthehose.Removethe2 cylinder

ocketwrench,extension,andratchethandle)

wateroutletelbowto theheadandremove

sket,thermostat,andsleeve.Scrapeoffthe

sketto theoutletflangeusingGREASE,


/ h t t p : / / w w w . h





-15

egasketin positionwhileinstalling.Also,

shoulderwithinthewateroutletelbow.

cylinderheadscrews(n/46-in.socket

tchethandle).

he cylinderheadandgaskettoavoid

ves.Scrapeoffallcarbonformationon the

enttoCylinderHeadGasket

CapScrewTighteningChart


/ h t t p : / / w w w . h





inderHeadScrewswith

nletline atthefuelpump(3/8-in.open-

hemainfuellineatthe fuelpumpelbowfitting

disconnectthebreatherpipeat themanifold

erfitting(s/8-in.open-endwrench),anddis-

uellinefromthe fuelpumptocarburetorbowl

).

studnuts (%6-in.boxwrench)and

anifoldassemblywithgasket.Checkthemani-

utlinedin paragraph61a(1)and freethe

on.

raph55a.

1

ad gasket,applygasketcementonthe

eadandthe bottomfaceofthegasket(fig.

proceduretoinstalltheparts removed.Make

on topofthepistonsbeforeinstalling the

e,basic-carbonate,mustbeappliedtothe

screwsbeforeinstallation.Allcylinderhead

nal tighteninginthepropersequence,asgiven

tensionwrenchAMM-1toatensionof

g.34).


/ h t t p : / / w w w . h





-15

exhaustsystemconsistsofamufflerwith

nexhaustpipe(fig.35).Themufflerismounted

npositionbytwoclampbrackets.Oneofthe

sistsoftwosolidpipe endsandaflexiblepipe.

andflangedatoneendfor attachmenttothe

esRemoval.

NCH,open-end,%6-in.

H,open-end,V2-in.

RENCH,open-end,%6-in.

ENCH,socket,V2-in.

n.

s,lockwashers,and flatwashers,(7/l6-in.

en-endwrench)thatsecurethemufflerguard

LBOW

APD49303

mParts


/ h t t p : / / w w w . h





ufflerrearclamptodeckbolt andlock

rench).Loosenthebolt,nut,andlockwasher

emuffler(V4-in.socketwrench,extension,

open-endwrench).Removetheclampfrom

ufflerfrontclampboltandlockwasher

Loosenthebolt,nut,andlockwasherclamp-

sectionto themufflerfrontpipe( Vi-in.socket

ethandle,andVi-in.open-endwrench).Remove

ews(3/8-in.open-endwrench)thatsecure

asketretainertothedeckcoaming.

nut,andl ockwasher('-'ir,-in.boxwrench

ch)clampingtogethertheupperandlower

e.Removetheuppersectionofthe exhaust

ss nuts,andgasket(two%6-in.open-

helowerexhaustpipeflangetothe manifold

exhaustpipe.

s andgaskets(%0-in.boxwrench)at-

bowtothe manifold.Removetheelbow.

esInstallation.

erparagraph58 h.

eps,usenewgasketsat thelowerexhaust

e,theelbowto manifoldflangeandtheexhaust

.

chWRENCH,sparkplug,* %6-in.

raisetheenginecompartmentlid,dis-

blebypullingtheL-shapedsuppressorter-

arkplug.Afterremovingtherubberumbrella

ocketwrench(i:)/le-in.)andhandlefrom the

heplug andgasket.Priortotheremovalof

blowalldirt andgritoutof thesparkplug

urroundingthe recess;otherwise,whenthe

e nothingtopreventforeignmatterfrom

useeventualdamagetothecylinder,piston,

308W

becleanedat3,000-mileintervalsby

nthe porcelainwithanythingthatwill


/ h t t p : / / w w w . h





-15

rkPlugGapGageSN-308W

ntisnecessaryto providethepropergap

nded(outer)electrode.Usewire-typegage

ap.

raph59aand h.

re installed,checkthegapbetweenthe

pgageSN-308W)andadjustthemto 0.025-

rethenewgasketis onthethreadedendof

hegaskettowardthecylinderhead.Make

of dirtonthemachinedsurfaceofthe cylinder

sparkplugrecessand,usingthespark plug

uginuntil thegasketcanbefeltto compress.

sparkplugs;theyshouldbetightenoughto

more.)Installtherubbershieldand connect

makingsurethatit ispusheddownuntila click

ectioncanbeheard.

butormaintenanceinvolvesperiodiclubri-

actpointsalongwiththerotorandcap;and

gnitiontiming(fig.37). Refertoparagraph


/ h t t p : / / w w w . h





UTOR.

n.

n.

.

hclutchandtransmissionasdirectedin

vascoverup toexposethedistributor

utorcapretainerclips.Movethe cap,still

ycables,toonesideand outoftheway.

he handcrankuntiltherotoris inthe

osition andthetimingmarkonthe rear

tlyunderthe pointerontheenginefront

renut(%-in.open-endwrench)and

heprimarywire,loosenthedistributorclamp

-in.open-endwrench),andpullthedistributor

e.

apandRotorRemoved


/ h t t p : / / w w w . h





-15

ftEngagementPosition

LATION.

I-WRENCH,open-end,3/8-in.

yj0-in.

open-end,V2-in.

o.1 (rearcylinder)firingpositionand

atingtherotoruntil thedistributorshaft

ththeoilpump driveshaft(fig.38).Loosen

(%6-in.open-endwrench)andmovethe

ththepunchmarkonthe machineddistribu-

heselectorscrew.

elmark(UDC1-6) exactlyunderthe

plate, turnthedistributorbodyrightor left

heact ofseparating.Tightentheclampscrew

*/2-in.open-endwrench).


/ h t t p : / / w w w . h





re,installthelockwasher,andtighten

rench).

capbothinsideandoutand installthe

atinglug engagestherecessinthedistributor

ersprings.Makecertainthatthesecondary

ecaptowersandthatthe rubbershieldsare

tensiontowers.

clutchandtransmissionasdirectedin

-892isavailable,connectitin theNo.1

dstart theengine(fig.39).Runthe engine

rmaloperatingtemperatureisreached.If

snecessary,loosenthedistributorclamp

ionTimingwithLightWf1-892and Mirror


/ h t t p : / / w w w . h





-15

en-endwrench)andadjustuntiltheflashand

markisapproximately1%4-inchahead

eflywheel)areexactlysynchronized.Because

nviewingthetiming marks,amirrorcanbe

makingan accuratecheckofthetiming.

mpscrew.

ctorscrew(T/,,;-in.open-endwrench),and

butorslightlyclockwisetoadvancethetim-

oretardittoget thebestengineperformance

se.Tightenthescrew(fig.40).

butorcontactpointsarejudgedentirelyon

eringwhetherornottheymustbecleanedorre-

nofcontactpointsisindicatedbythe appear-

ace(similarto darkfrostedglass).Suchpoints

anedandneednotbereplaced.Ordinarily,ifthe

eed notbefiled,buttheyshould becleaned

ry-cleaning.Inaddition,thedistributorbase

nspectedforthe purposeofdiscoveringthe

eshould beeliminatedtoavoidfurthertrouble.

taneSelector


/ h t t p : / / w w w . h





ndtheotherhasa slightprojection,thepoints

ullyandthensquaredbyfiling.Thegap must

0h (3)(e)below).Whenthepoints arecoated

thisisanindicationthat oxidationisoccurring.

thepointsshouldprovesatisfactoryforfurther

mstances,thecoilorcondenser,orboth,maybe

ontinuesitwillbeadvisabletoreplacefirst

or noimprovementisnoticed,thenreplace

rtestingthe coilandcondenserareavailable.

mentisathand, itcanbedeterminedwhich

enpointsarebadlypitted, burned,ortheir

undbyincorrectfiling,itispreferableto replace

mptsalvageby furtherfiling.

CTPOINTS.

ph60a(2)WRENCH,set,combination,

assemblyasoutlinedin paragraph60a(2 ).

pwardandoffthedistributorcamshaft.

8-in.open-endwrench)onthe primary

hepost,removethehairpin springholdingthe

ost,and pullthearmup andoutofthedis-

ontactarmspringfromtheprimarypostand

unscrewthecontactscrew(two1%4-in.

NTACTPOINTS.

raph60 h(2)

ALE,spring,HKM-J544S

ointTOOL,distributorpointalining,

wlocknutand contactscrewinthesup-

ose.

startingthe notchedendoftheflatarm

stbetweenthe squarebaseandthesquare

efiberinsulatori sinplacebetweentheflat

distributorbody.

ngoverthecontactarmpivotbearing,and,

andprimarypost, tightenthepostinnernut

tandarm pointdonotmeetin perfectaline-

tobendthesupporttoobtain alinement.Use

olAEE-38(fig.41).

wdriver)holdingthecondensertothe

e condenserattachingearsoutfromunder


/ h t t p : / / w w w . h





-15

tributorContactPointGapwith

A/inementToolAEE-38

oroughlythearea ofthedistributorbodyunder

he condenser.UseapieceofCLOTH,emery,

thebodyandcondenserinorderto estab-

ds.Reinstallthe condenserandtightenthe

ft untilthefiberrubbingblockof thearm

tofoneofthe camlobes.Adjustthegap(dis-

ator,UMS-40)betweenthepoint faceof

pointfaceofthe contactarmtoaclearanceof

ontactscrewinthesupport(fig. 41).Tighten

yandrecheckthegap.Withthe pointsto-

springscaleHKM-J544Snearthe pointend

onof 17to20ouncesshouldregister onthe

t angletothearmuntil thepointsjustseparate

otorwiththedistributor camshaftand

rasitwill go.


/ h t t p : / / w w w . h





mblyasoutlinedunder paragraph60a(3).

Wherevercontactpointsareresetor

ngmustbecheckedbyeitherof thefollowing

HT.

htWEI-892in theNo.1(rear)spark plug

.The(IGN) markontheengineflywheel

twiththepointer ontheenginefrontplateat

t (fig.39).

ary,loosenthedistributor clamp(screw-

wrench)andturnthedistributor untilthe

kappearsinalinementwiththe pointer.Tighten

GHANDCRANK.

untilNo.1 pistonstartsuponits com-

ontinuetocrankengineuntil theignitionmark

timingpointeroftheenginerear plate.At

firing position.

aneor a0.001-inchfeelergagebetween

nts(pointsfullyclosed).

ngtoa pointwherethe0.001-inchfeeler,

s,can bewithdrawnwithonlyaslightdrag.

mpingbolt.

ributorBreakerArmTension


/ h t t p : / / w w w . h





-15

NGS

erValveConstruction

untilthemark(IGN) isagainalined

thedistributoras in(c)above.

nd cap,makingcertainthatallhigh-

yseatedintheir respectiverecessesinthedis-

ubbercableshieldsarepusheddownoverthe

coil islocatedattheright frontside

tedonabracketwhichissecuredtothe cylin-

adcapscrew(fig.16).Thecoilmaybe discon-

gh tensionwirefromthecoiltower,removing

whichrunstotheignition switchattheinstru-

therearwireto thedistributorafterremoving

3/8-in.open-endwrench).Checkthecoilusing

ethecoil,drain thecoolantfromthecylinder

inderheadcapscrew(1% 0-in.socketwrench

ecoilandmountingbracketoffthecylinder

ketcanberemovedfromthecoilif necessary

ches).Notethatflatandstarwashersare

ngboltandbracketanda lockwasherandnut

acket.

edistributorto coilandsparkplug

towithstandwearanddeterioration.If a

newcableof thesamelengthandquality

cialservicinginstructionsarerequiredother

e goodcontactisobtainedandthecoverboot

tor cap.


/ h t t p : / / w w w . h





xternaladjustmentswhichcanbemade

mixtureadjustment,throttlestop screw,and

TROLVALVE.First,makesurethatthe

eisfree(fig.44). Determinethisbyattempt-

ounterbalanceweight(atrearofheatriser).

dmoveeasilyandspringback.Ifthevalve

cessarytofreetheshaft initsbearings.To

oldasoutlinedin paragraph57a(7)and the

ws(Va-in.box wrench);thenremovethevalve,

ifoldHeaterValve


/ h t t p : / / w w w . h





-15

buretorThrottleStopScrew

yturningthevalveandshaftas necessaryfor

foldopening(fig. 43).Takeoutthecounter-

.open-endwrench),removethecounterbalance,

ingout oftheslotin therearendofthe shaft.

hecoverandreducethediameterof bothends

abrasive,sufficientlytofreeshaft.Cleanshaft

aceofgrit. Donotenlargethesteel bushings

withaprotectivescaleandif removedwillonly

shaft.Reassembletheshaft,thermostatspring,

e.Usinganewgasket,installthefrontendof

bushing.Installthecoverandthe2 capscrews

ovalprocedurewhenreinstallingthemanifold

Runtheengineuntiltheheat indicator

gisters175 degreesF,indicatingthatthe

ormaloperatingtemperature.Besure that

ywith thebuttonontheinstrumentpanel

hrottlestopscrew(screwdriver)untilthe

e(fig.45).Turningthescrewclockwisewill


/ h t t p : / / w w w . h





speed,whileturningit counterclockwisewill

eed.Adjusttheidle mixturebyturningthe

slightamountwiththefingers orascrew-

estidle performancepossible(fig.46).

Loosenthechokelinkagetocontrolwire

andpushthechokevalvealltheway open.

tonallthe wayinand,whileholdingthe

enedposition,tightenthe linkagecollarscrew

ire.Openandclosethe chokevalveandcheck

ox,3/8-in.

open-end,~,\0-in.

H,open-end,%0-in.

artmentcover.

bowto carburetorthroatclampscrew

osentheairintakeelbowsupport bracketby

dcapscrew(n^g-in.socketandflexhandle)

ngAdjustment


/ h t t p : / / w w w . h





-15

okeControlAdjustment

upportbracket,andair cleanerforwardand

pullbackspringand removetheclevis

etocarburetorattachingclevis.

ontrolwirefromthechokeadjustment

e linkagebracket(screwdriver).

at thecarburetor(%g-in.open-end

-in.open-endwrench)andlockwashers

hemanifold.Liftoffthe carburetorassembly

Wheninstallingthecarburetor,reverse

duseanewgasket.Readjustthechokecon-

ndtheidlemixturescrew(par.61,a (2)(3)).

t.Toadjustthethrottlelinkage,first


/ h t t p : / / w w w . h





ew(par.61 a(2))untilthe ammeterjust

heacceleratorpedal,loosenthethrottle-

crewdriver)(fig.48)andresetthe collaron

assure fullthrottleclosingatthe throttle

haft operatingarmofthecarburetor.Ifthe

ncompletelyasindicatedbythe fixedstop

ingarm whentheacceleratorisfullyde-

e-control-wire-collar,loosentheacceleratorad-

/8-in.open-endwrench),andremovethe

terpinandclevispin(pliers).Turn theclevis

ffectivelengthofthecablein ordertoraise

ovidethepedaltravelrequired forfull

epinand anewcotterpin,tightenthe clevis

ttle controlwirecollartoobtaintheproper

n.Checktheadjustmentstomakesurethat

alisdepressedfully,thethrottlevalvefixed

ontactstheboss onthecarburetor;alsowhen

yreleased,thatthe throttlestopscrewisin

n thecarburetor.

nt.Withthehandthrottlecontrolbut-

tionagainsttheinstrumentpanel,loosenthe

r-screw(screwdriver).Holdthecontrolwire

torupperoperatingarmandtightenthe collar

ENTCLEVIS

ntrolsandLinkage


/ h t t p : / / w w w . h





-15

tedParts

val.

n.WRENCH,open-end,%6-in.

surepipeat thegagebyuncouplingthe

rench)ontheundersideoftheinstrument

ipeenoughto beoutofthe way.

n.open-endwrench)andlockwashers

etopermitremovalofthe clampbracket.

faceofthepanel.

regageisnotadjustable.If itisdeter-

ccurateorinoperative,replaceitwithanew

ation.Reversetheremovalstepsto

movetheengine andcylinderheadto

sandvalvemechanism(fig.49).Reconditioning

of precisionrefacingandgrindingequip-

volvedareperformedonlybytrained ord-


/ h t t p : / / w w w . h





e,thisappliestothereplacementofvalves,

velifterswithadjustingscrews.

ph55a.SCALE,spring,HKM-1336A

ENCHES,tappet,Vi-in.

r.55a).

nifold(par.57a).

erscrews(Vi-in.boxwrench),removethe

offthegaskets.UseGREASE,generalpurpose,

sonreassembly.

gscrewsfor eachcylindershouldbe

enginefiringorder1-5-3-6-2-4aseachpiston,

deadcenterbycrankingtheengine.Valve

tingthelifterscrewto valvestemclearance

,usingSD-AC300feelerstockandtwoVi-inch

Theclearancebetweentheupperfaceofthe

fthe valvestemisadjustedbyholdingon

Vi-inchtappetwrenchwhilethescrewis

therVi-inchtappetwrenchtoincreasethe

kwisetoreducetheclearance.Theself-locking

dAdjustingScrew


/ h t t p : / / w w w . h





-15

veLifterAdjustingScrewTension

tionsatisfactorilywhenthereisa resistance

h-pounds(4-lbpullwhenmeasuredwith

ttheendof a6-inchwrench).Ifturning

erscrewis lessthanspecified(4poundspull

gscaleHKM-1336Aattheendof a6-inch

personnel.

oved,usingnewgaskets,byreversingthe

moval.

gine.

-G4

ch,

eenginevalvesandpiston ringscanbe

ompressiontestofeachofthe enginecylin-

tion,runthe engineuntilithas reachedits

ature(175F).Withtheignitionswitchin the

sparkplugs accordingtotheproceduregiven

e carburetorthrottlevalvebypullingthe

ward.InsertcompressiongageAEE-G4in

cylinderheadandcranktheenginewith

gagereachesitshighestreading(fig.52).If


/ h t t p : / / w w w . h





y105poundsareobtained,thevalvesand

ondition.Ifthetestresults arenotuniformor

vedto belowbycomparison,makeacom-

eofficerin chargeortotheresponsiblemain-

mpletionofthecompressiontest,serviceand

directedinparagraph59band c.

tgeneratorusedinthis vehicleisahigh

untwoundtypehavinga40-amperecapacity.

merearoftheengine ontherightside.Two

egeneratorbodyandan adjustingarmwith

the generatorinanydesiredpositionas

neCompression—GageAEE-G4


/ h t t p : / / w w w . h





-15

eratorCommutator

edrivingbelt.Asidefrombeingmounteddi-

heenginecompartment,thegeneratoris

nwhichis weldedtothedrivepulleyand

wobrushesareused inthegenerator,one

utputof thegeneratoriscontrolledbythe

maturerunsonfullyhousedballbearings.

ont andrearbearingsinthe generatorend

ricationasdirectedin SectionV,"Lubrica-

whenoiling thegeneratorbecauseover-lubri-

ATOR.Periodicallyoratthelubrication

ratthefrontend ofthegeneratorbyloosening

rewdriver)andslippingthecoverforwardover

fig.53).Whenthecoverhasbeenremovedthe

canbeexamined.Thebrushesshouldseat

barsandthereshould beaminimumofarcing

otion.Ifthecommutatorappearstobeblack,

shes arewornbadlyandunevenly,orif there

hecommutatorrotates,replacethegenerator.

rty,it maybecleanedsuccessfullyinthe


/ h t t p : / / w w w . h





00,ina stripexactlythewidthofthecom-

the commutatorwhileitisrotating.Athin

hthickandthe samewidthasthecommutator

aperagainsttherotatingcommutator.Thetop

nedtowardtheenginesothatit hasatrailing

.Thestripofpapermust beofsufficientlength

yon thestickwiththesamefingers usedto

ottomovethearmor handintothepathof the

mutatorhasbeencleaned,positionthecover

wsecurely.

box,V2-in.

ENCH,open-end,V2-in.

artmentlid.

djustingarmpivotscrew(Vi-in.open-end

cylinderblock.Disconnectthebrown

blackwire(%6-in.boxwrench),andthered

.

mclampboltat thegeneratorrearend

nch).

ngebolts(Vi-in.open-endandVi-in.box

eneratortowardtheengine.Removetheadjust-

vethe adjustingarmupandoutof theway.

sand,whileholding thegenerator,removethe

r.

orpulleyfromthefan beltandliftthe

ecompartment.

Toinstallthegenerator,reversethere-

paragraph64c.Wheninstallinga replacement

bricatedadequately,connectedproperly,and

sionisadjustedasdirectedin paragraph74<1.

tstartingmotorisused tocrankthe

eenginefrontplateat theleftoftheengine by

throughtheenginefrontplateand theclutch

orcrankstheenginethrougha Bendixtorque

iscontrolledbya fingeroperatedpushbutton

anelanda solenoidswitchontheengineside

starterswitchbuttonis pushedthesolenoid

cmagnetdrawsheavyhighcapacitycopper

thestartermotorcircuitandset itinmotion.

closedandthestartingmotorarmaturestarts


/ h t t p : / / w w w . h





-15

unter-weightedBendixpinioncausesitto lag

erotationspeed.Thisactionresults inthe

eshwiththe gearteethontheouterrim of

epointwherefull toothengagementofthe

accomplished,aflangeonthe pinionhalts

entofthepinionandthearmatureshaft begins

.Torelieve theshockonthearmatureshaft

BendixDriveRemoval


/ h t t p : / / w w w . h





aheavycoildrivespring isemployedbetween

pinion shaft.Whentheenginestarts,the

wheelrelievesthetoothpressureof thepinion

ongpitch threadaswellasthe recoilofthe

onout ofmeshandforwardawayfromthe

ndixdrivepartsrequireno attentionex-

pt thoroughlyclean.Nooilisrequired.To

e,removethe4 screws(screwdriver)holding

eoftheclutchhousing.Removethecovercare-

gasket(fig.54).Wipethescrewdriverwith

ispresentontheparts, soakthedrivewith

dthenwipeawayalltracesof oil,grease,

on itisnecessarytoremovetheBendixdrive

soutlinedpreviously.Usingascrewdriver,

,andspring.With apunchandhammer,drive

rivepartstothestarter motorarmatureshaft

veparts offtheshaft.

ORBEARINGLUBRICATION(BULKHEADOFF

e rearofthestartermotor mustbepushed

earing asdirectedinsectionV,"Lubrication".

ation,returntheoilerlid tosealthelubrication

MMUTATOR.Examinethestartercommuta-

removed.Todo this,loosenthecoverband

r)attherearofthestarting motorandpushit

startingmotor.Ifthecommutatorisblack

arewornbadly,replacethe startingmotor.

ydirtyand thebrushactionandbrushesare

tarterfromtheengineandcleanthecommu-

s directedinparagraph64b(2) forthegen-

.

RENCH,open-end,9/]6-in.

irectedin paragraph55.

tthestarting motor(%6-in.open-end

utchhousingbolts,nuts,andlockwashers

in.boxwrenches)thatholdthestarterto the

chhousing.Liftthe startingmotorwithBen-

housingandawayfromtheengine.

nstalledbyreversingtheprocedurefol-

in paragraph65c.


/ h t t p : / / w w w . h





-15

N.

ph55a.

inthehullby reversingtheremovalpro-

pinsand lockwashersshouldbeused.

nate,shouldbeappliedathose connections.

ebeencompleted,fillthecoolingsystemwith

ewiththepropergradeofoil, totheirrespec-

eratetheengineandmakeacarefulinspec-

leaks.Checktheinstrumentsandcontrolsfor

helubricantlevelinthetransmissionandadd

required(sec.V,Lubrication).


/ h t t p : / / w w w . h





.

ueltankislocatedon ashelfwithinthe

herightsideandslightly abovetheengine.The

eby2band clampssecuredoverthetopofthe

mthe tanktothefuelpumpwhereit flows

nedthroughafinegauzescreenbeforeenter-

he carburetor.Asthefuelentersthecarburetor

enteringthecarburetorfloatchamber.

elpumpislocated,atthe extremeleftrear

mshaftleveland immediatelyinfrontofthe

pumpis actuatedbyaneccentricforgedand

hepumpmakesthefollowingonecomplete

softhe crankshaft:gasolineispulledfrom

servoironthedownstrokeofthe plunger,and

e carburetorfloatchamberontheupstroke

yoffuel tothecarburetoriscontrolledbya

ump bodywhichactstorenderthefuel pump

orfloatchamberisfull.

theprimerhasbeenoutlinedin paragraph8.

o startinginsubzerotemperatures,itis not

llrequire specialserviceotherthantokeep

primerconsistsofapump andasystemof

et.Whenthe pumppistonispulledrearward,

wnintothecylinder.Whenthepistonis pushed

ibutedthroughtheoutlet pipetothethree

nifold.

nerforcleaningtheengineintake airis

htlyabovethecarburetorin theenginecom-

byaclampto anelbowfastenedtothecar-

heelbowis supportedbyaweldedbracket

yacylinder-headcapscrew.Thecleanercon-

rts:the cover,thefilteringelement,andthe

eaneris discussedinparagraph72.


/ h t t p : / / w w w . h





-15

arts

Whenitis desiredtodrainandclean

vingitfrom thevehicle,proceedasfollows:

artmentlid,removethebatterycompart-

ctthebatterygroundstrap(par.55a (8)).

crewdriver)holdingthecrankcasedrain

vetheplateandgasket.

rainplug (3/8-in.open-endwrench),lo-

tank,attherear.

ringinagallonor moreoffuel;rockthe

einorder todislodgesediment.

ullplateandgasket.

edin paragraph55a(4),(5),(8),

:

open-end,V2-in.(2)

n.WRENCH,open-end,»/16-in.(2)

n.

mpartmentfrontlidscreen(par.55a (4))

entlidwithhinge(par.55 a(5)).


/ h t t p : / / w w w . h





mpartmentcoveranddisconnectthebat-

g(8)).

55a(9))and removetherearairduct,

(12)).

mppipeat thetankendofthe flexible

open-endwrenches).

ewireat thetankunitterminal(3/8-in.

arkerlightwi<*eatthe Douglasconnec-

eharnessclipsontheright deckcoaming

pen-endwrench).Movetheharnessaway

nk.

regulatortoremainfully connected,re-

kheadmountingbolts,nuts, flats,locks,and

endwrench).(Notethatthestarwashers

egulatorlegsand thebulkhead).Laytheregu-

heway.

nlet pipe(3/8-in.open-endwrench)and

and totheleftout oftheway.Disconnectthe

en-endwrench).Removetheoilfilterfrom

kingoffthe4 mountingbolts,nuts,flats,and

dwrenches).Carefullyraisethefuellinepipe

ovalRAPD49309


/ h t t p : / / w w w . h





-15

heway.

toadjustingarmcapscrew(V2-in.open-

erandlockwasherand,with thesametool,

stingarmpivotstudnut inordertoswingthe

k strapclampboltswithnuts,flats,and

dwrenches).Bendtheleftstrapsdownflat.

ward,to theleftoffits shelf,andraise

kthetankoutofthe enginecompartment

edin paragraph68b.

nstalled,GREASE,generalpurpose,should

rfacesonwhichthetankrests;this operation

kinto position.

d,itwill benecessarytoremovethescrews

efuelgagetankunitin ordertoinstallthe

newgasketshouldbeusedto avoidthepos-

s point.

nfor removal(par.68c)toinstall the

edin theoperation.Afterfillingthefueltank

yleakagewiththeenginerunning.

riveris abletotellat aglancethe

elinthetankby meansofanelectricfuelgage

the tankunit,andtheelectricalgagecircuit.

tmayberemovedfromtheinstrument

followingoperations:Usea%-inchopen-end

minalnuts and-locksonthebackofthe gage.

tfromthe rightterminalpostandtheblack

post.(Thereisho currentinthewireswhen

emovethe2 nuts(3/8-in.open-endwrench)

strumentpanel.TheU-clamponthegageter-

edandthe gagecanbepulledoutfrom the

onatthetankunitcan beremovedafter

re removed(3/8-in.open-endwrench).The

the flexiblecouplingnearthetankunit( Vz-in.

nches).Toreplacethetankunit,removethe

ichfastentheunittothe tank.

iencedwiththefuelgages anditis de-

rthedashunit ortankunitis atfault,make

s knowntobeaccurate.Thetestismade

ewirefromthevehicle'stankunit andattach-


/ h t t p : / / w w w . h





est unitmustthenbegroundedon thevehicle,

on,andthe floatofthetestunit raisedand

aisingandloweringthe floatofthetestunit,

operly,thereis anindicationthatthediffi-

fanothertestdoes notchangethesituation,

aced.Ontheotherhand,ifraisingand lower-

onthedashunit,the troubleliesinthe dash

case,thedash unitmustbereplacedprovided

edandconnectionscleanedandtightened.

EM.

ovaloffueltankis outlinedinpara-

ybe cleanedbydisconnectingbothends

orusingcompressedair,if available.

eenRemoval


/ h t t p : / / w w w . h





-15

pstrainer,proceedasfollows:

whencleaningthefuelpumpstrainer,

capanddisconnectthefuelpumpline atthe

pling(Vi-in.and %0~m-open-endwrenches).

eckat thesideoftheengine compart-

ed,loosenthefuelpumpbowlretainernut;

ardthe engine,andremovethebowl,gasket,

thebowlandcleanthestraineri nSOL-

ngsurethatallforeignmatterhasbeenre-

compressedairis available,blowthroughthe

eaningoperation.Wipeoutthebowl witha

osition,makingsurethattheendof the

thebowlcoverhasenteredthecenterhole

wgasketontheundersideof thebowlcover

trainer.

onwithitsupperrim againstthegasket

mpnut underthebowl.Tightenthenut

andlever tofillthebowl.This canbe

tingthecarburetorpipeatthecarburetorand

gasolinewillnotflowfrom theendofthe

owlandsupply pipearefull.

bowlscreenlocatedat therearofthe

nletpipefrom thefuelpump,proceedas

the screenplug(pliers)andremovethe

byturningit clockwise(y8-in.open-end

owlscreenbylooseningit withaVa-inch

atthebottomofthescreenand turningthe

tethescreenremovaloperationbyturningit

m thecarburetor(fig.58).

yimmersingit inSOLVENT,dry-cleaning,

compressedair.

oceduretoinstallthe screen,usinganew

f necessary.Installanewlockwirethrough

eedlevalvepassageplug attherearof the


/ h t t p : / / w w w . h





reenRemoval

n.

in.

n.

outlinedin paragraph55a.

uelpump pipeatthefuelpump inlet

ench).

mpoutletpipeat theoutletfitting( yjfi-in.

nletpipeat thefuelpump(3/8-in.open-

rinlet pipeatthepump(Vi-in.open-end

pscrewsholdingthefuelpumpto theside

socket,extensionandratchethandlefor rear

dwrenchforfrontscrew)andremovethefuel


/ h t t p : / / w w w . h





15


/ h t t p : / / w w w . h





edin paragraph70a.

replaced,changethefittingsfromthe

entunitand reversetheremovalinstructions

nstalling thepumpontheengine,the pump

alledto contacttheactuatingcamonitstop

usingGREASE,generalpurpose,tokeepthe

ne,start theengineandcheckforfuel

ons.

stableWRENCH,open-end,7/i0-in.

n.(2)WRENCH,open-end,1-in.

ecouplingnut attheprimer( 3/8-in.and

es)andtheoutletpipejamnut(3/8-in.open-

eratingbuttonatthe faceoftheinstru-

ounterclockwisewhileholdingthepumpshaft

lecrescentwrench).Loosenthelocknut

ehindthepanelfaceandturnoff the

rCleanerParts


/ h t t p : / / w w w . h





-15

eofthepanel.Slip theprimeroutofthe panel

ovetheprimerpipes,the procedureto

pe orpipestobe takenout;however,no

eded.

edin paragraph7la.

nfor removalwheninstallingtheprimer,

plingsaretightand noleakageexists.Avery

willrendertheprimerineffective.

ANER.

uretoraircleanerfilterstheairentering

sforconsistenttopengineperformancethe

icedasoutlinedin sectionV.

ovingtheentirecleanerassemblyorjust

t,itis necessary,first,toremovetheengine

een.Toremovethescreen,thecleanerfilter,

oceedasfollows:

artmentfrontlidand screwofftheleft-

sengagethelid supportsandpermitthecover

sible.

rtbracketsatthetopof thebulkhead,

acket(3/8-in.open-endwrench)whileturn-

r)extendingthroughthescreen.NOTE:Lock

etweenthe nutandundersideofthebracket;

washerisusedbetweenthetopside ofthe

s importantthatthesepartsbeinstalledin

ata goodelectricalgroundisobtainedbetween

3screensupportbracketslocatedonthe

ngecrosssupport.

bracketsandoutoftheway.

artmentlidandwiththe fingers,remove

hecleaner.Liftoff theaircleanercoverand

eentirecleanerassemblymayfirst bere-

ampscrew(screwdriver)locatedatthebase

Withtheclampscrewloosened,thecleanercan

ng tothecarburetor(fig.60).

estepsfollowedforremovaloftheunit

agraph72 b,makingsurethecleanerbase

ut,andenginecompartmentfrontlidscreen

rely.


/ h t t p : / / w w w . h





4

ystemof thisvehicleconsistsoftheradi-

at,andenginewaterjacket.Thewarmcoolant

uringengineoperationis utilizedinheating

eaterlocatedatthe bottomofthebatterycom-

throughwhichwaterfromthe cylinderhead

ewaterpumpwhenthe controlvalveonthe

mpisopen.

full,all ofthepartsofthe systemstand

neisstartedthecoolingsystempumpis like-

onissetup onlywithinthewaterjacketofthe

ewaterthermostaticvalve,closedattempera-

hereturn ofthefluidto theuppertankofthe

waterwithintheenginecontinuesonlyuntil

noughheatfromthe enginetobecomewarmer

ostat.Whenthisoperatingconditionisreached

open.Whenthevalvehasopenedfully the

ctedlyintotheradiatoruppertankand down

forthe coolingfinstodissipatetheheat and

emperatureof175F.

ubefor thebatteryheaterisconnected

nderhead,the heaterfunctionsbeforethe

cvalveopensandbeforeallofthe coolanthas

thecontrolvalveontheinletside ofthepump

pletecoolingsystemis10 V2U.S.quarts


/ h t t p : / / w w w . h





-15

HART

EMBLY.

T,i/2-in.

necompartmentlidtoitsfully opened

ononthefanbelt atthegenerator(cofthis

crews(Vi-in.socket,andratchethandle)

pulleytothewaterpumpshafthub. Remove

y(fig.61).

edin paragraph74a,alsothefollowing:

n.

AssemblyRemoval


/ h t t p : / / w w w . h





pulley assembly,itmaybenecessaryto

dditionalamountbeforethe fanandpulley

(Viz-in.socketandratchethandle).Thebelt

ningthe generatorhingeboltsbeneaththe

pen-endwrenches).Thenloosenthegen-

screw(*/2-in.open-endwrench).Pushthe

nginetoloosen thebelt.Whenthefanand

thegeneratorout(downward)awayfromthe

untilthereisa beltdeflectionof%inch,mid-

orandthefanpulley.Tightenthe adjusting

stingarmpivotscrew,andthegeneratorhinge

rewsare tightenedsecurely.Usingthevehicle

eatleast onecompleterevolutiontomake

etheshroudatany point,andclosetheengine

ENCH,open-end,Vi-in.

artmentlid.

waybetweenthegeneratorandthefan.

tment


/ h t t p : / / w w w . h





-15

than3/4-inchdeflectionatthis point,thebelt

hat istootightwill workahardshiponthe

pbearingswhileabelt thatistooloose will

verheatingandunderchargingofthebattery.

ngebolts(Vi-in.box andVi-in.open-end

ustingarmclampscrew(Vi-in.open-end

djustingarmpivotstudnut (Vi-in.open-end

rupwardtoloosenthebelt ordownwardto

vea deflectionof%inchmidwaybetween

ulley (fig.62).

djustingarmclampscrewwhileholding

rcorrectbelt tension.

ingebolts andtheadjustingarmpivot

ENCH,open-end,y2-in.

soutlinedin paragraph74c.

hegeneratorand fanpulleysand,after

ttom,forcethebeltoutbetweenthefandrive

llcrossmember.Workthebeltout over

ntheblades andshroud.

outlinedforremovaltoinstall anewbelt.

sionasoutlinedin paragraph74candcom-

T.

T,"/iG-m.

mas outlinedinparagraph76.Loosenthe

)andremovethecylinderheadtoradiatorhose.

handletowardthefrontandremovethe

rews(n/r,-in.socketandflex,handle)and

bow.

etelbowflangegasketandthe thermostat

mbly,fitnewgasketstotheflangeand sleeve

ralpurpose,tokeepthegasketsin place.

NDTHERMOSTAT(fig.63).NOTE:The

downward.Thethermostatmustbeinstalled


/ h t t p : / / w w w . h





ostatRemoval

otherwise,the valveactionwillberendered

eatingwillresult.

ftheoperationofthe thermostatis

t shouldbereplaced.Noattemptshouldbe

at.Totest theunit,immerseitin waterwhich

tedopeningtemperature(172F)ofthether-

oesnot starttoopenori fitsticksin the

ethethermostat.

edin paragraph75a.

ostat,makesurethesmallbreatherhole

,installationisthereverseoftheremovalpro-

bove.Makesurethedilutervalvehandleis

ard,sothatthediluterwillnot operatewhen

completingtheoperation,makesureno leaks

gasketandthatthethermostatis functioning

onwiththe enginerunning.


/ h t t p : / / w w w . h





-15

artmentlidtothe fullyopenedposition

or captoitshalf-openposition.

stemdrainplug(screwdriver)locatedon

aheadofthecrankcasedrainhull plate.

valveat theradiatoroutletpipein the

e enginecompartmentandallowthecooling

.If antifreezeisinuse,savethe solution.

asdrained,closetheradiatordrain valve

inplug inthehullusing LEAD,white,basic-

oobtainapositiveseal atthispoint.

econnections(screwdriver)attheupper

hewaterpump.Pullthehose connections

terpumpinletpipe.Loosenthebatteryheater

)attheheatercoilendand pulltheheater

e coil.

ockdrainhoseatthedrain valveinthe

ortScrewRemoval


/ h t t p : / / w w w . h





leyassemblyas outlinedinparagraph

xtension,ratchethandle,andpaperwithin

ewswhenloose,removethe 3metalscrews

e radiatorflangestothehull(fig. 64).Lift

tof theenginecompartment(fig.65).

epairedorreplaced,removethefan

torrequiresnospecialservices.The6

rtothe hullattheleft andrightradiatorflanges

leakagefromthe radiatorcoreisdetected,

dbeinstalledora fullreportonthe condition

dnancepersonnel.


natePUNCH,tapereddrift(2)

oval


/ h t t p : / / w w w . h





-15

ator,the flangeholesmaybeheldin

the hullthroughtheuseof 2shorttapered

eright andleftupperholeswhilethe lower

emainderoftheinstallationis completedby

ructions.UseLEAD,white,basic-carbonate,

ndtestfor leakswiththeenginerunning.When

twill befoundthatasmuchas agallonof

rtheenginehas operatedlongenoughtoopen

offtheair trappedinthecoolingsystempockets,

T,V2-in.

Vi-in.

artmentlidtoits fullyopenedposition.

he fanbeltasoutlinedin paragraph74c

adjustingarm.Removethefanandpulley

ragraph74a.

othehalf-openpositiontounsealthe cool-

oolingsystemdrainplug(screwdriver)onthe

eadoftheoilpan drainplughullplate.Open

he endofthelowerradiatorpipe andallow

pan).Thenshutoffthevalveand reinstallthe

nthe hullusingLEAD,white,basic-carbonate,

ositiveseal.Ifantifreezeisin use,savethe

ws(screwdriver)andpulloffthe hose

erpump.

ws(Vi-in.boxwrench)holdingthe water

.

passemblyandgasket.

rpumpshaftissupportedbyprelubricated

cationis requiredatthisunit.A nonadjustable

nleakagedevelops,thepumpshouldbe


16

erpumpmakesure theshaftisfreeand

oundwhenthepulleyhubis rotatedbyhand.


/ h t t p : / / w w w . h





nstallthewaterpump,applyingGREASE,

skettohold itinplace.

withLEAD,white,basic-carbonate,and

enlyandsecurely( Vi-in.boxwrench).

oceduretocompletetheoperation.

mandif antifreezeisinuse,test thestrength

R,antifreeze,EDL116,addingnewsolu-

Operatetheengineandcheckforleaks.

lingsystemitwill befoundthatconsider-

ed afterthethermostathasopenedandthe

outofthesystemthroughthe upperradiator

opensandafterthegurgling soundandbub-

dadditionalfluidasrequiredto entirelyfillthe

etheradiatorfillercapcompletelytoshut off

ystem.

NCH,box,yj,;-in.

H,box,%,i-in.

open-end,~,\t!-in.

open-end,s/8-in.

artmentlid,takeoutthe 2bolts(7^t;-in.

wrenches)holdingthebatterycovertothe rear

vethe7capscrews(Vi-in.socketextension,

fastenthebatterycovertothe leftquarter

oaming.Lifttheinsulatedbatterycompart-

right,andout oftheenginecompartment.

bleclamps(!^,i-in.boxwrench)andremove

menuts(s/8-in.open-endwrench)toliftoff

outof thecompartment.

mas outlinedinparagraph76a (2)and

yheaterhoseclamps(screwdriver),andpull

er coil.

crewdriver)whichsecurethecoilthrough

rybasesupport frame.Removethebattery

he batterycompartment.

edin paragraph78a.

eduretoinstallthebatteryheaterusing

nate,onthehoseconnectionsandtestingfor

ng.Also,determineifthe coolingfluidiscir-

Thecoil shouldbecomewarmwithin5min-

ne.


/ h t t p : / / w w w . h





-15

freezeSolutionTesterEDL-1I6


/ h t t p : / / w w w . h





nt81

83

ON.

sk-typeclutchislocatedimmediately

eelwithinahousing behindtheassistant

ockpitsideofthebulkhead.Thebellshaped

curelytothe enginefrontplateandencloses

chanismandtheflywheel.Theclutchrelease

ansmissionpinionflangeis oftheballtype

utchitselfcannotbeadjustedto compensate

ydepressingand releasingapedalatthe

is connectedtoareleaseshaftattheclutch

;theeffectivelengthof thecableisadjustable

etotheexternalreleaseleveron theleftend

hpedal,thereleasebearingmovestoward

ontactstheinnerendsof 3releaseleverswhich

plateandcoverassembly.Sixboltssecurethe

ssemblytotheengineflywheel.Theforceon

essureplate tomoveaheadandcompressthe

ndcoverassembly.Thisactiondisconnects

pressureofthepressureplateagainstthe for-

mberandthe pressureoftherearfaceof the

eengineflywheel(fig.67).

erightend oftheclutchreleaseshaftfor

hing.Engineoil mustbeappliedatthis point

accordancewiththedirectionsgiveninsec-

earingis packedatassemblywithhighmelt-

snot requiresupplementarylubricationdur-

Theclutchpilotbushinglocatedin thefly-

therearwardendof thetransmissionpinion


/ h t t p : / / w w w . h





-15

blyCrossSection


/ h t t p : / / w w w . h





USTING'

eLinkage

ntatassembly.Thisbushing requireslubrica-

nvolvingremovalofthetransmissionare

DJUSTMENT(fig.68).

nd,!)7,,i-in.

n.

utchreleasesandengagescompletely,it

st1inchoffree travelofthepedalbeforethe

Thisclearanceismaintainedbyadjustment

ectingtheclutchpedaltothe clutchrelease

crew( Vi-in.open-endwrench)andturn

ckwise)untilitbottomson thelocknut.

bleclevis cotterpinandremovethepin

thereleaseshaftexternalleveratthe lower

sing.

ut( %,;-in.open-endwrench)andturnthe

ntheeffectivelengthofthecableor counter-

cableuntilnoslackor pullexistsonthe clutch

ecleviseyeis inlinewiththe leverhole.

ghtentheclevislocknut,andinstall anew


/ h t t p : / / w w w . h





-15

pedalat thefrontofthecockpit,backoff

rning counterclockwise)until1inchof free

tbeforeclutchdisengagementstarts.

ocknut.

T.

SOCKET,vU-in.

c-in.

ET,s/8-in.

%f,-in.

H,open-end,3/8-in.

CH,open-end,7/10-in.

d,V2-in.

nd,%0-in.

open-end,y8-in.

onbyfollowingtheprocedureoutlinedin

groundstrap,followingthedirections

8).

naccordancewiththestepsoutlinedin

motorcable(%(i-in.open-endwrench)

ousingbolts withnutsandlocks(% ,i-in.socket

,and'-'-,,i-in.open-endwrench)whichsecurethe

plateandclutchhousing.Movethestarter

arwardawayfromtheengineflywheel.

usingdowelbolt nuts(Vi-in.socketand

tside and,withahammer,tapthedowel

gine frontplate.Thedowelboltsarelocated

prominentearsoftheclutchhousingmay

e itisthefirst boltabovethestartermotor

htsideitis thesecondbolttotheright ofthe

w(fig.69).

nuts(Vi-in.socketextension,ratchet

ndwrench)aroundtherightsideand bottom

ws(%0-in. socketextension,andratchet

utchhousing.


/ h t t p : / / w w w . h





eMechanism

gfrom theenginefrontplate.

eachofthe6clutchpressureplatecover

.socketandspeederhandle)byturningthem

eventthe clutchspringsfromdistortingthe

replate.Afterlooseningthescrewsuntil all

ed,removethemin anyorder.

essureplateassemblyandtheclutchdriven

ywheel.


6AHANDLE,speeder

clutch,useGREASE,generalpurpose,to

chpilot(transmissionpinion)bushing inthe

hespecialclutchalininggageMPF6Awith


/ h t t p : / / w w w . h





-15

heboreofthepilot bushing.Slidetheclutch

ngsideof hubawayfromfrontoftheengine

ageand expandbothcolletsuntilthearbor

hingandsplined drivenmemberhub.Inthis

rightanglestotheflywheelfaceand therear

will beflatagainsttheforwardfaceof the

hPressurePlateAssemblywith

eassemblyin positionagainsttheforward

andi nstallandtightenthe6 pressureplate

et,andspeederhandle)untiltheclutchspring

ompletetheprogressivetighteningofthe

wsbyturningthemonlyVi turnatatime to

.Makeanadditionalcompleteroundofthe

hecapscrewsare tightenedsecurely.

at theendofthe alininggagetoallow

withdrawthegage,beingcarefulto avoid

yofthe colletsegments.

ginposition andstartoneofthe upper

egeneralalinement.

equiredtolineupthe leftandrightdowel

artapthe2 dowelboltsinplace(hammer).


/ h t t p : / / w w w . h





dnuts andtightenthenutssecurely(Vz-in.

).Theninstalltheremainingcapscrews

andratchethandle)andboltswithnuts (Vi-in.

handle,andVz-in.open-endwrench),aswellas

ocketextension,ratchethandle,and%0-in.

eningthescrewsandboltnuts alternatelyto

voiddistortingthehousing.

ation,reversetheremovalstepsoutlined

NEMENT.

6A

S196

.

HousingIndicatorSB-SI96


/ h t t p : / / w w w . h





-15

singis installed,itisnecessarytoaline the

odo this,firstinstallthehousing onthe

hebolts downsnuglybutnottight.Then

BSS196ontotheclutchalininggage MPF6A

torbuttoncontactstheforwardclutchhousing

o alinethehousingwithin0.006-inchasreg-

torreadingsatvariouspointson thehousing

,tighten thehousingboltsand,ifneces-

sionreamerthroughtheenginefront plateand

chhousing.Insertthe 2dowelboltsfromthe

ntplateandinstallthe nuts(Va-in.socket,and

teningthe5bolts,the 3screwsatthetop

boltsholdingthestartermotor,use thedial

gage tochecktheamountofvariationat

adingsvarymore than0.006inchopposite

sionmountingholes,loosenthehousingbolts

enthenalternately.If afterrechecking,the

sspecified,andifsatisfactoryalinementcan-

ngthe housingbolts,useshimsatthe 3low

gborefaceandthe transmissiontoobtain

tofbothunits.

part oftheengine,itis coveredinthis

elocationtothe clutchanditsrelatedfunc-

edtoa flangeonthefrontendof theengine

,andlocks.Aring gear,shrunkontotherim

evolvethecrankshaftforenginestarting when

otorpiniongear.The huboftheflywheel

hichsupportstherear endofthetransmis-

hdrivenmemberslideson thetransmission

eflywheelhubbushing isusuallyreferredto

Thetransmissionpinion shaft(clutchpilot)

thGREASE,generalpurpose,beforerein-

lsaslistedinparagraphs55,82 and89.

flywheel,itisnecessarytoremovethe

ar.55),thetransmission(par.89), theclutch

sembly(par.82).


/ h t t p : / / w w w . h




andlocks(!y10-in.socketextension,

ngtheflywheeltothecrankshaftflangeand

rring gearawayfromthefrontof theengine.

edin paragraph84b.

edbyreversingtheremovalprocedure.The

ywheelare sospacedthatitcannotbe in-

pecttothetimingmarkingsstampedonits


/ h t t p : / / w w w . h




-15

nt87

88

ON.

e conventional,automotive,synchronized

speedsandonereverse.Powerentersat the

onthroughthetransmissionpinionfromthe

ehubofwhichiscarried onthepinionshaft

ortedat itsfrontendby aballbearingand

the flywheelhub.Justinsidetherear wall

epoweris transmittedtothetransmission

Theclusteriscarriedonbronzebushingsbear-

ichislockedstationaryin thecase.Thecounter-

ransmissionpinionare inmotionatall times

ngand theclutchisengaged(fig.72).A

hronizerunit,andaslidinggear, togetherwith

hepowertrainof thetransmissionunit.The

ontendbya ballbearingwhiletherearend

ecessedintheforwardendof thepinion(fig.73).

nizerorslidinggearis controlledbythetrans-

ftleverlocatedatthefront ofthecockpitim-

ver'sseat.Thepositionof thesynchronizer

ngedbymovingthecontrolleverandlinkage

combination,thesecondspeedgearing,orthe

.Whentheshifttohighgear (thirdspeed)is

ovestotherearto engagetheexternalteeth

ough thecountershaftgearsiseliminated

ausethemain shaftisconnecteddirectlywith

ersedirectionofmotionis accomplished

gedwiththe smallgearofthecluster.The

eswiththeidler gearwhenashiftis made

turns onabronzebushingfitted toitshub.

ng gearisfittedwithsynchronizingrings

secondandhigh,or viceversa,withoutgear


/ h t t p : / / w w w . h




/ h t t p : / / w w w . h




15


/ h t t p : / / w w w . h





ofthe mainshaftisconnectedtothepro-

ndand splinedsleeveorslipjoint andyoke

dor rearwardasrequiredduetothe move-

tedengine.Theoutergroundsurfaceof the

ngloadedleather sealtopreventtheescapeof

etransmissioncase.

becheckedandlubricantaddedorre-

cewiththespecificationssetforthinsectionV.

relocatedontheleft sideofthetransmission.

renchtoremovethefillerplug ordrainplug.

yreachingbetweentheassistantdriver'sseat

e.

DJUSTMENT.

econtrolshiftleveris connectedtothe2

sontherightside ofthetransmissionbyrods

hinthepropellershaft cover(fig.21).To

ds,proceedasfollows:

olshiftleveri nneutralandremovethe

pliers) connectingtherearendsofthe2

sioncontrollevers.

onnected,graspthetransmissioncontrol

eir neutralposition.Thiscanbedetermined

fthedetent plungeronthecenternotchof

hiftforks.Thedetentplungerwill beinen-

notchwhen,withthefrontaxleshift leverin

tcanbeturned byhandwithoutdisengaging

uts(%,t-in.open-endwrench)andturn

hortentheeffectivelengthofrodsor counter-

rods.Theclevispinsmustjust entertheclevis

ransmissioncontrolleverswithaminimumof

usingnewcotterpins,andtightenthe clevis

theadjustmentbyshiftingintothedifferent

inkagepoints.

DLEVERS.

missioncontrolleversshouldoperateeasily

ftingeffortfromthedriver.Periodiclubrication

oftherodswill assurefreemovementatthese


/ h t t p : / / w w w . h





-15

oidstrainingtherods bybendingorjamming

verorbetweentherods.

T,ft,,-in.

nd,~/,G-in.

atsas directedinparagraph55a(1)

ws(7/j,i-in.open-endwrench)withflat

andremovethepropellershaftcover.Dis-

rolshiftrodsat bothendsbyremovingthe

s (pliers).

t (^(i-in.socket,ratchethandle,and

andthedoubleU-clampwhichpositionsthe

hthe rodsslide.Worktheshiftrods outfrom

ndout ofthehull.

stedinsubparagraphItabove.

ocedurewheninstallingtheshiftrods.

geas directedinparagraph87.

HOIST

VER

ET,%0-in.

H,box,s/8-in.

etransmissionassembly,proceedasfol-

haftanduniversaljoints assemblybyfol-

ninparagraph55(3). Removethe2trans-

oframescrews(%6-in.socketextension,and

controlshiftrodsat thetransmissioncon-

2 cotterpinsandclevispins(pliers).

ntcompartmentlidhandwheelsandraise

position,removetheenginefrontcompartment

(4)),and installliftingeyeHKM-J53after

gsystemandremovingcylinderheadscrew

rheadtighteningchart)(fig.33).

theeyeandraisethe hoisttosupportthe

theengine.


/ h t t p : / / w w w . h





Removal

ws(s/8-in.boxwrench)whichsecurethe

housing.Whilesupportingthetransmission

movestraightforwarduntiltherear endofthe

earedtheclutchhousing.Liftthetransmission

edin subparagraphaabove.

ission,besureit islubricatedadequately

tisfactorily.Beforeplacingitinposition,coat

onpinion)bushingwithGREASE,general

oveprecautions,theremovalprocedureshould

gthetransmissionassembly.CAUTION:

utof thevehicle,becarefulnottodrop any-

oftheclutchhousing.Also,donotdepressthe

lutchdrivenmemberwilldroptothe lower

gitimpossibleto installthetransmissionwith-

venmember.


/ h t t p : / / w w w . h





-15

NIVERSALJOINTS

mitsthepowerdevelopedby theengine

eaxle unitlocatedinthefrontend ofthe

huniversaljointsateachend topermitsmooth

etreads eventhoughtheengineoperatesina

nit (fig.75).Thepropellershaftis protected

hbya sheetsteelcoversecuredtobrackets

hull.

ypeenginemountingsused,somemove-

whileit isinoperation.Theuniversaljoints

tefortheangle ofthedriveandfor theside

gine.Endwisemovementoftheengineonits

the useofasplinedslip jointattherear of

etransmissionmainshaft.

ershaftisofthe hollowsteel-tubetype

tyokesateachend.The shaftrequiresno

H,box,V2-in.

-in.

Hopen-end,V2-in.

p,thedriver'sand assistantdriver'sseats,

erasoutlined inparagraph55(1),(2) and

nuts(Vi-in.box wrench)holdingthe

xleunitdrivingflangeandremovethe U-bolts.

easedbyremovaloftheU-boltsto pre-

ossandtaptheshaftassemblyrearwardto

the retaininglugsoftheaxle unitdriving


/ h t t p : / / w w w . h





NIVERSALJOINTS


/ h t t p : / / w w w . h





-15

epropellershaftandpull forwardtodis-

romthetransmissionmainshaftsplines.

assemblyoutofthecockpit.

lacethepropellershaftonly,followthe

)in connectionwithremovalandinstallation

graphhabove.

KM-J881A

eduretoinstallthepropellershaft;however,

thefreebearingsofthe frontjointarefully

ftheaxle unitdrivingflange.Toaidin this

mpHKM-J881A.

reoftheneedle-bearingtype,completely

edinplace.

,hand-operated,pressuregun,andgrease

ossesasdirectedinsectionV.Lubricatespar-

thelubricantfittingineachcross.

versalJointBearings,


/ h t t p : / / w w w . h





NIVERSALJOINTS

mesnecessarytodisassemblethejoints

hecomponentparts,proceedasfollows:

IERS

tasoutlinedin paragraph91c.

tsassemblyoutofthevehicle,remove

es.

nchandgrasptheloops ofthelockrings

dliftthelock ringsoutoftheyokeeyes.

A,pressoneofthe bearingsinward

keuntil ithasclearedtheyokeeye.When

ressed inwardtheoppositebearingwillhave

e'.vayfromthecrossinto theadapteronthe

etakenoffthecrossand outoftheyoke.

emblyoftherear joint,firstremovingthe

the shaftyokeeyesandthenthebearingsthat

yokeeyes.Followexactlythesameprocedure

ontcross.

hlyinSOLVENT,dry-cleaning,andpry

oilsealsoffthe 8crossjournals.

graphcabove.

greaseineachbearingcupto holdand

sandloadeachbearingcup with12needles.

orkoil sealsoneachjournalofthe cross.One

usedovertheendof thecrosstogetherwith

randsealsinto positiononthecrossshoulders.

alled intheyokesbyreversingthe dis-

wever,thelockringsshould beexaminedcare-

ydistorted ringsshouldbereplaced.

completed,usea brasspunchandhammer

achof the2bearingsat thefrontandtoward

herearinorder tofreethecrossesat theseals.

outlinedinparagraph91c.


/ h t t p : / / w w w . h





-15

tment95

tsremoval100

tsinstallation......101

intheextremefrontofthe hullandit

erfromtheengineto thedrivewheelsand

comprisedofatwo-speedtransmissionwith

anetarygearing,2brakedrumswithhand levers

s forbraking,2wheelcarrierhousings,and2

ckdrive wheelsaresecured.Thevehicle

erear oftheunitbelowthe mainshaftflange

dforwardbythe propellershaftfromthe

ttherear endoftheaxleunit transmission

mainshaftare2helicalcut gearsofdifferent

rearisthe highspeedgear,thesmalleroneat

gear.Themainshaftiscarriedon opposed

themainshaftgearsare theaxledrive

erbearings.Wheneverthetransmissionis in

aged,all4ofthesegears (2mainshaftgears

areturning.

shaveinternalteeth.Betweenthemand

isaslidinggear usedtoconnectthepinion

willofthedriver.

yoneof themainshaftgears,thepinion

rotatesthedrivewheelsandvehicletracks

arydifferentialgears.


/ h t t p : / / w w w . h





rentialthetwoplanetarydrivingelements

rumwhichis connectedbymeansofitsgeared

Thesegearsinturn arekeyedtotheplanetary

erentialsidegearscarriedin aforgedspider

ftof theringgear.Theside gearsaresplined

hichareconnectedbymeansofflangestothe

DADJUSTMENT.

cessarytoreadjustthe brakebandsasthe

herearefour adjustmentpointsoneachband

videdforlimitingclearance,oneforadjusting

forshorteningthetravel ofthesteeringlevers.

S

S


/ h t t p : / / w w w . h





-15

nd,!",,i-in.

ewingnut usedtosetthetension ofthe

efelttocontactthedrum.Thenloosen thelock

clearancelinkscrews(%,;-in.open-end

ocknutis locatedinthefrontwallof the

bottomoftheaxlecarrierhousing(fig.77).

w(!yl,i-in.boxwrench)clockwiseuntil

m.Thenbackoffthe screw(turningcounter-

fthe screw)toestablish0.020-inchto

esetwopoints.Whileholdingtheheadof the

^,i-inchboxwrench,tightensecurelythelock

nch).

wingnut,turnthenut counterclockwise

orwardfaceofthe wingnutisnotchedso that

-turnstages.Byobservationandfeelingwith

ell whenthenotchesarereached.)Thisadjust-

mpletedwiththenotchesonthe wingnut

n theplatejustaheadof thewingnut.

ndthe clevispin(pliers)holdingthe

steeringlever.Shortenorlengthenby turn-

dtoproducenotmorethan 1inchoffreemove-

er)beforetheeffectivestrokebegins.

procedureontheotherband andlever.

eraladjustmentmakesurethatboth

esamebrakingeffectandthatthe bandsare

with theleversreleased.

ngineoilonthelever pivotpinsandclevis

cessaryto removethesteeringlevers,

vethelevertooperatingrodcleviscotterpin

ovethecapscrewandlock washer(%,;-in.

curethesteeringleverretainerplate,spacer,

.Movethelevertowardtheside ofthecock-

heninstallingthesteeringleversreverse this

OL.

ountedjustinfrontofthe driver'sseaton

heaxleunit housing.Bymovingtheaxlegear-


/ h t t p : / / w w w . h





eutral,theslidinggear movesforwardtocon-

e drivepinionthroughthemainshaftlow

eshiftleverforward,the slidinggearismoved

ainshafthighspeedgearwithengine^power.

risinneutral,the propellershaftcanbeturn-

tmoveuntiltheclutchis depressedandthe

eitheritshighor lowspeedposition.Ingen-

avetheaxlegearshiftleverinthe highspeed

ssuch thatthelowercombinationofdriving

eunit maybeshiftedtothe lowerrange.

cledbya conventionalbrakebandcon-

As oneleverispulledrearward,the bandcon-

rstopthecorrespondingaxleshaftdepending

effortappliedto thelever.Atthesametime,

anetaryelementincreasesbyvirtue ofthe

ingmotionis timeimpartedtothevehicle

r stoppedandthespeedofthe oppositetrack

d.Ifbothleversarepulledrearward,thevehicle

hacasethe clutchmustbedisengagedorthe

-n.

-in.

-in.

p,seats,and thepropellershaftasoutlined

nd(3).

cleso thatnoneofthevehicle'sweight

nspring releasebracketSD902748,

ndhandleSD903401pulltheendsof therear


/ h t t p : / / w w w . h





/ h t t p : / / w w w . h




nwardandremovethespringstopbrackets

on bothsides.Theoperationasoutlinedin

oversthe trackremoval.

rstremovebothaxleshafts aftertaking

ews(5/8-in.socketextension,andratchet

lhub(fig. 78).Untieropesanddisconnect

cketextension,ratchethandle);thenremove

etopof theaxleunithousing.Disconnectthe

he topoftheunit (%c,-in.open-endwrench)

eforwardoutof theway.Removethebolt

ut(~^0-in.open-endwrench)tofreetheclip

xle,andCarrierRemoval


/ h t t p : / / w w w . h




-15

andbend thetubesupto permittheaxleunit

onnectthetransmissionremotecontrolshift

erandclevispins (pliers).Loosenthespeed-

pliers)andpull thecableoutofthe axleunit.

oftheunit(shallowdrainpan) byremov-

open-endwrench)attherearonthe bottom

orwardandoutofengagementwiththedrive

hsocketandratchethandlewhilean assistant

box wrench)insidethecockpit,removethe

xleunitcoverflangebolts, copperwashers,and

eranddrivewheelassemblies(fig.79).

nremovingtheassemblies,use2 hydraulic

hullanddrivewheeland adriftbarand heavy

carrierhousinginnerpilots outoftheaxle

xleunitand,usinga hoist,lifttheunit

ofthecockpit.Whilethe unitisbeinglifted,

used toguidetheunitand preventanyun-

(fig.80).Notethatshimsare usedoneachside

nit coverflanges.Onassembly,thesamenum-

alledatthesidefromwhichthey wereremoved.

oval


/ h t t p : / / w w w . h





TION.

edin paragraph97above.

ionoftheaxleunit requiresnospecial

eversetheremovalprocedureandfill with

tionV.Also,the tracktensionshouldbead-

cedureasoutlinedin paragraph103a.

LUNIT.

theaxle transmissiondifferential,runin

cedasdirectedinsectionV.Thelubricant

erightsideof theunitcoverandmaybe re-

en-endwrench.Theaxleunitventilatorre-

ainplugis locatedneartherearofthe unit

removedwitha;i/i,i-inchopen-endwrench.

SANDSHAFTSREMOVAL.

ph103a,below.

-in.

in.),

(2)

ononthe sidewherethedrivewheelis

heproceduregiveninparagraph103h (5).

langescrews(5/8-in.socket,andratchet

nnotbe removedbyhand,inserttwo3/8-inch

readedholesoftheaxleshaftflange andturn

-in.open-endwrench)topushtheflangeaway

Removetheaxleshaft andtakeoutthepusher

gegasketandonreassembly,applyanew

neralpurpose,toholdthegasketin place.

mer)andremovethedrivewheelbear-

stingnut (23/8-in.wrenchSD903856).

elwithouterbearingand innercupand

er bearingfromthehubof thedrivewheel

aringcupsiftheconesareto bereplaced

).Slidetheinnerbearing coneoffthecarrier

roughlywithSOLVENT,dry-cleaning,the

b andthebearings.


/ h t t p : / / w w w . h





-15

emoval

SANDSHAFTSINSTALLATION.

edin paragraph100aabove.

bycarefullydrivingthemintoplace

.PacktheinnerbearingconewithGREASE,

lgrade),installthebearing,andinstalla new

withGREASE,generalpurpose(seasonal

eel,andadjustthe bearings(wrench

eatedfirmlyand thewheelturnshard;then

% turn.Installthelockandlocknut andset

er).

ndtightentheflangescrews(s/8-in.socket,

ely.

he drivewheelandadjustthetrackten-

aph103b.


/ h t t p : / / w w w . h





NS

ION(fig.82).

rackspropelthevehicleforwardorback-

sedof41rubbercoveredtrackshoescalled

respacedVi inchapartandeachplateac-

tracklength.Thegrouserplatesareriveted

berbandswhichact asthebackboneofthe

eofthevehicle,is adrivewheeldrivenby

xleshaft.Theshaftissplined onitsinnerend

hedifferentialsidedrivegearsandflangedat

angeisheldsecurelytothe drivewheelby

hubofthedrive wheel.Thedrivewheelis

rbearingsonthe outermachinedsurfaceof

Thehousingis,in turn,joinedtotheaxle unit

pilotsandsecuredby6 bolts,copperwashers,

ltsextendthrough thehullofthe vehicle.

earwheelis mountedoneachsideofthe

htracktomaintainthetrackspacingandto pro-

and changingthetracktension.Acantilever-

gmentofa semiellipticspringisusedateach

end ofthespringis securedtoacrankarm

hullattherear. Thecrankarmspringis

ardatitsfrontend by2stopbracketsattached

frontbracketlimitsthe upwardtravelofthe

ncontactwiththespring.Therear bracket

racketin casesofsharpandsevereshocksto

vehicle,suchaswhenstrikinga perpendicular

herearwheelturnsonopposedtaperedroller

leat theendofthecrankarm.

ckon 4bogiesets,2on eachside.Each


/ h t t p : / / w w w . h





-15


/ h t t p : / / w w w . h





NS

liptic,3-sectionspring,thecenterofwhichis

t whichispivotedona hullbracket.Thebogie

h springareshackledtothespringeyes in

band)throughayokeanddoublespindle

sarefreetomoveupwardand downward

ngflexingabilityasfixedby stopbumpers

axiallyby thesemiuniversalmountingofthe

ngyokes.Eachbogiewheelis rubbertired

rwhereitcontactstherubberbelt ofthe

esupportedindividuallyonsealed,opposed

riedonthespindle brackets.

(2on eachside)areusedtosupport and

ewheelisborne on2needle-typebearings.

heelsatoneendof thespringareforced

elscanbe easilydirectedbackintothebelts

ieWheelsontoTrackBelt—


/ h t t p : / / w w w . h




-15

412(fig.83).Tofunction,the rerailermust

ntandrear wheelsofthebogiesetinvolved.

rdtheouteredgeofthe track,thenotchesin

gagedwiththetrackinnerguidelugs thatthe

esthe outerbogiewheel.Ifthewheelsare off

ack,thererailermustbeso positionedthatthe

bogiewheel.Whenthefrontwheelsof abogie

cleinreversesothewheelswill climboverthe

tion onthetrackbelts.Ifrear bogiewheels

icleforward.

ckTension—GageSD902836


/ h t t p : / / w w w . h




NS

sion

n,

gnmatteroffthenarrowmachinededge

eatwhichisexposedbetweentherearend of

thehull.

ckspringtensiongageSD902836toward

ingearsat therearofthe gagebetweenthe

nstthe machinedsurfaceofthespringseat

okand springupandaroundthe crankarm

holeneartherearof thegage(fig.85).

kTensionGageinPlace


/ h t t p : / / w w w . h




-15

kTension

kTension


/ h t t p : / / w w w . h




NS

ngStopBracketfoAdjustTrackTension

etipofthe pointerwithrelationtothe

etipof thepointerisbelowthe topleafof

oloose.Ifthetip ofthepointerisabovethe top

kistootightand, ineithercase,thetrackmust

ducedbyremovingshimsbetweenthe

sionspringfront stopbracketandthelower

cktensioncanbeincreasedby installing

).

justment,pullthefrontendof thetension

arwheeltensionspringreleasebracket

hookedunderthebogieandidler wheelto

hiclejackSD903400.Thebracketontop

ookedoverthetopleafof thetensionspring

efrontstopbracket.Operatethejackwith

ethespringend downward(fig.87).

espringhas beenpulledoutofcontactwith

2cap screws(Vi-in.socketextension,and


/ h t t p : / / w w w . h





-15

wearpad andaddorremoveshims,as re-

of thespringtocoincidewiththetip ofthe

sbeencompleted,lineup theshimsand

curethe capscrews.

cknessgage(partofthetrackspringtension

ebetweentherearstopbracketandthetop

Ifmoreor lessclearancethan%,iinchexists

veshimsasinthe caseofthefrontstopbracket.

etwillrequire adjustmentatthesametime

ntainthe :!/J,;-inchclearance.Therearwheel

cketisnotneededin adjustingatthispoint.

rSpringStopBracketforClearance—Gage

the sidewherethetrackisto beremoved

fthevehicle'sweight.

erearwheel spring(rearwheeltension

902748,vehiclejackSD903400,andhandle

ntactwiththespringfront stopbracket.

ews(%,i-in.socketextension,andratchet

ardstopbrackettothe hullandremovethe


/ h t t p : / / w w w . h





NS

ringStopBracketsRemoval

opbracketinthe samemanner(fig.90).

itsfrontendarcsup underthehull.This

dingthe rearwheeltomoveforwardand

out ofengagementwiththerearwheel

thesuspensionsystem(fig.91).


/ h t t p : / / w w w . h





15


/ h t t p : / / w w w . h





NS

edin subparagraphaandcabove.

gnedforprincipaloperationinone direc-

leading.Do notreversethetracksonthe

users oneachplatewillleador passthedrive

useronforwardoperation.

ersingthe removalprocedure.Whilerear

ngbracketSD902748andvehiclejack

after thestopbracketshavebeeninstalled,

djustedas outlinedinparagraph103b.

moval


/ h t t p : / / w w w . h





-15

onasoutlinedin paragraph103b(5).

3856

aringAdjustmentWrenchSD903856


/ h t t p : / / w w w . h





NS

/8-in.socketandratchethandle)holding

wheelhub.

mer)andremovethebearinglocknut,

gnut(23/8-in.wrenchSD9038S6);thenlift

(fig.92).


earwheel,thebearingsshouldbe cleaned

ry-cleaning,andtheyshouldbe handpacked

pose,seasonalgrade.Also,theoilsealsshould

howsnewsealsare needed(fig.94).

nthecrankarmandadjust thebearings

8-in.wrenchSD903856)untilit ishardto

justingnut shouldbebackedoff%turnto

ment(fig.93).

/8-in.wrenchSD903856)andlock(chisel

/8-in.socket,andratchethandle)with

as outlinedinparagraph103l».

chet

JACK,floor

vehicle,SD903400

in.

ble

in.,SD903856

ndSpringRemoval.

byfollowingthe procedureoutlinedin

tlock(chiseland hammer)andremove

usting nut(adjustablewrench).

thspringoffthesupporttube (fig.95).

pring,removethe 4nuts(%H-in.socket,

cksfromthetwo U-boltswhichholdthespring

ankarm.

ndSpringInstallation.Toolsas listed

nstallthespring onthecrankarm,mak-

boltfitsintothe recessofthespringseaton


/ h t t p : / / w w w . h





15


/ h t t p : / / w w w . h





NS

ankArmandSpringRemoval

gsin thecrankarmsupporttubebore

pose,seasonalgrade.Installthecrankarm

hesupporttube.

djustingnut(adjustablewrench)and,

armandspringmovehard,backoffthe

ll thelockandlocknutandbend theearsof

er).

onasdirectedunderparagraph104 c.

eightfromthebogiewheelassemblyby

ewheelscarrierbracketandgrouserplate

ndhandleSD903401)untilthewheelflange

d.


/ h t t p : / / w w w . h





-15

capoutofthehub (screwdriverand

(pliers)andremovethebogiewheel

stableopen-endwrench).Slipthewheeland

hebracketspindle(fig.96).

emoval

pouttheinneroil sealandtheinnerbear-

ringsinSOLVENT,dry-cleaning.

toberemovedalso,usea brasspunchand

ctbothcups.

graphaabove.

aring,HKM-J270,disk18,handle1.

sideofthe bogiewheelhubandinstall

eelbearingreplacerHKM-J270,disk18 and

with GREASE,generalpurpose,seasonal

bearingandanewoilseal.

withGREASE,generalpurpose,seasonal

easein thehub,andinstallthe wheelwhile

flange ofthewheelisinside thetrackbelt.


/ h t t p : / / w w w . h





NS


/ h t t p : / / w w w . h





-15

earingcone,and washerinplace,install

t thebearings(adjustablewrench)untilthe

n.Thenbackofftheadjustingnut %turnto

intheadjusting nut(pliers),installthe

ck.

val.

T,%.i-»n.

n-end,^-in.

clewherethe bogiesetisto beremoved.

s (pliers)bolts(%,i-in.open-end

ocket,andratchethandle)withlockswhich

the supportbracketonthehull.

offthe trackbeltsandawayfromthe

tion.Toolsaslistedin subparagrapha

eduretoinstallthebogieassembly,noting

,whichare tobeboltedon belowthebogie

einstalledwiththeedgehavingthe greater

leofthespring.Onthe frontassemblies,the

highermountingofthe springendmustbe

evehicle.Ontherearassemblies,thestop on

acketpermittingthegreatertilt ofthewheels

hiele.

ER

T,9/,0-in.

.

mblyasdirectedinsubparagraphb above.

(pliers)andremovethespringyokenut

ethandle)andflatwasher.Pullthewheel

ls,offthespringyoke.

ovethebogiewheelsandspindleoffthe

nd.

en andremovethe2shackleboltlock

ket,andratchethandle)whichsecurethe

p (U-bolt)nuts(',4,.,-in.socket,and

ashers.Prythespring plateofftheclips

clipsandcradlebracketoffthe spring.


/ h t t p : / / w w w . h




NS

.Toolsaslisted insubparagraphd.

sgiveninparagraph96f toinstallabogie

hespringcenterboltheadentersthe recess

pringshackleboltsshould becoatedwith

,seasonalgrade;installed,andtightened

tospringthe yoke.Installthelocknutsand

estoponthebogie wheelspindlebracketmust

of thespringaftertheyokepin andspindle

SE,generalpurpose.Tightenthecastellated

cketto theyokeuntilithits thestoponthe

cotterpin.

chet

JACK,vehicle,SD903400

H,brass

R

onasdirectedin paragraph103a(5)and

earoftheguidewheelflanges.

screwswithlockwashers(screwdriver)

p.Removethewheelretaining spindlescrew

andratchethandle),lock,flat,andthrust

heelincludingneedlebearingsand oilseal

crewdriver)whichholdtheinnerwheel

heelandliftoff thecapwithseal.Whenin-

anewgasketbetweenthecapflangeand

edle-typebearingsateachendoftheguide

dwitha brasspunchandhammer,tapping

ntsaroundthebearing.Cleanthebearingsand

y-cleaning.


requiredtoinstall theguidewheel.In

cedure,packtheneedlebearingswith

,seasonalgrade;pressthemintothewheelhub

mer)sothattheyareflush withthehubends.


/ h t t p : / / w w w . h




-15

emoval

ithgasketbeforeplacingtheguidewheelon

yis providedinthedesignofthe wheeland

thewheelretainingspindlescrewsecurely.

platesisheldto the2-trackbeltbandsby

amagedorforany reasonrequirereplacement,

rtedtoordnancepersonnelso thatthework

erformed.

vailableforattachmenttothetrackgrouser

ctionduringvehicleoperationoverfine and

mentarygrousersareeasilyinstalledonevery

s:

dof thegrouserovertheinnerend ofthe


/ h t t p : / / w w w . h




NS


/ h t t p : / / w w w . h




-15

theadjustableendoftheauxiliary

nutwithwasherovertheplate outerendso

rsthe notchintheplate.Tightenthe wing

GrouserInstallation


/ h t t p : / / w w w . h





ANDELECTRICALACCESSORIES

ker116

tch120

1

electricwindshieldwiper)122

ch..123

dswitch:124

mperature)gage125

128

l129

0

ession132

ION.

thisvehicleis ofthesinglewiregrounded

y-dutybattery,abeltdrivengenerator,astart-

ltageregulator,the wiringsystem,andthe

ories.Thestartingmotorandgeneratoraredis-

eoneof theitemsofthevehicleequipmentis

ngisextremelyimportantandis providedatall

ecessary.Allconnectionsthroughoutthesys-

d tight.


/ h t t p : / / w w w . h





-15

,thefaceofthe instrumentpanelorgages

r'sseatwill bereferredtoasthe front.Refer-

ofthepanelorinstrumentsrelateto thesideat

electricalterminalsarelocated.

mploysa12-volt,6-cell,19-plate,153-

e)battery.Thebatteryislocatedon ashelf

t,slightlyaboveandtothe leftoftheengine.

omtheengine compartmentbyasheetsteel,

emovableinsulatedcover.Thebatteryisin-

nalsto thefront.Inthis positionthenegative

ith thepositivepostatthe leftorhullside.

dedto thefrontframeofthebatterycompart-

e,lead coated,copperbraidstrap.Thebattery

yacoilcarryingwarmfluidpiped underpres-

ngsystem(par.78). Inaddition,dissipation

eatfromtheoutsideofthe hulladjacenttothe

presenceoftheengineexhaustmufflerlocated

boveandto theleftofthe batterycompart-

thebatterytemperaturebekeptashighas

efficiently.

ET,V2-in.

H,open-end,%0-in.

)

batteryelectrolytefluidshouldbe checked

Todothis itisnecessarytoremovethe bat-

usingtwo~/\,i-inchopen-endwrenchesatthe

andlockwashersholding thecovertotherear

chsocketextension,andratchethandleto

pscrews.Aftercheckingthebatteryelectro-

40andifthe conditionofthebatteryisfound

erycellsshouldbe filledtolevelwithdistilled

hydrometertestofthe batteryshowsacor-

more,the batteryissatisfactory.Ifthereading

80the batteryshouldberemovedandreplaced

ery.Toavoidoverfillingandto insureget-

wateri neachcell,eachfillerplugshould be

ent directlyoppositeeachfillerhole.Ifthe

l thewaterlevelreachesthefilleropening


/ h t t p : / / w w w . h






actlycorrectwhenthefillerplugforthatcell

nd installedinthefillerhole. Afterfillingthe

nywaterspilledandsee thattheterminalsare

teryWithHydrometer—EDL40

.

rectedinsubparagraphcabove,which

eckingspecificgravity.

eterminalclampnuts(%,i-in.box

psonthebatteryposts(pliers)and remove

tivebatterycableterminalsfromthe battery

clampframenutat eachendofthebat-

nch)liftofftheframe,andlift thebatteryout

nt.


/ h t t p : / / w w w . h





-15

t

r-

.

s-

vent

ct

ole.

rAddingBatteryWater


/ h t t p : / / w w w . h






edin subparagraphdabove.

eversingtheremovalprocedure,making

amenutsaretightenedonlyenoughtoprevent

makesuretheconnectionsarecleanandsecure.

ASE,generalpurpose(seasonalgrade),over

eterminalsto retardcorrosion.

TOR.

asoneofthechiefcomponentpartsof

generatorregulator.It consistsofthreeen-

casedinasealed,moistureand dirtproofbox

eof theenginecompartmentbulkhead.The

st, thecircuitbreakerwhichclosesand

thegeneratorandbatteryto preventthecur-

oughthegeneratorwhentheengine isstopped.

ngregulatorwhichcontrolsthemaximumout-

eventsdamageto thegeneratorandbattery.

orwhichholdstheelectricalsystemvoltage

sunderthevariousoperatingconditions.

thevoltageandcurrentregulatoris

onnect,remove,andreplacetheunit witha

lator.

ET,Vi-in.

H,open-end,Vi-in.


ctthebattery(par.55g).

at theregulator(screwdriver),noting

ackwireconnectsattheleft post,theoakwire

mallblackwireto thefilterpost,andthe red

.

gboltswhichattachregulatorto bulk-

nch),nuts(Vi-in.socketextension,andratchet

kwashers,andstarwashers(notingthatthe

betweentheregulatorlegs andthebulkhead).

kheadand awayfromthevehicle.

edin subparagraphcabove.

structionsmakingcertaintheregulatoris

nectedexactlyasindicatedinparagraph


/ h t t p : / / w w w . h





-15

egulatorInstalledonBulkhead

WITCH.

edinconnectionwiththestartingmotor

tchfunctionsto closestartingmotorcircuit

shbuttonon theinstrumentpanelisoperated.

anelectricmagnetinthe solenoidswitchbe-

eavycoppercontactstogetherandthusclose

oset thestarterinmotion.Thesolenoid

nginecompartmentsideofthe bulkheadjust

rregulator.Anemergencystarterswitchbutton

esolenoidswitchundera screwcap(fig.104).

open-end,V2-in.

n.


/ h t t p : / / w w w . h






lenoidEmergencyStarterSwitch


ctthebatteryasdirectedinparagraph55 g.

alnut(Vi-in.open-endwrench)anddis-

,heavyredwire,andblackwire.Removethe

/8-in.open-endwrench)anddisconnectthe

oint.Disconnectthestarting motorcable

nalafterremovingtheterminal,nut(Viz-in.

emovedfromthe bulkheadbyremoving

rewdriver),theheadsofwhichareon thefor-

andnuts (3/a-in.open-endwrench)withlock

edin subparagraphbabove.

lledbyreversingthe procedurefollowed

batterycable,heavyredwire,and blackwire,

erminal,theoakwire totherearpost,and

the switchright-handterminalpost.

switchismountedonthe lefjsideof

ctsto energizethestartersolenoidswitch


/ h t t p : / / w w w . h





15


/ h t t p : / / w w w . h





NDELECTRICALACCESSORIES


/ h t t p : / / w w w . h





-15

n withtheignitionswitchturnedon(fig.

box,9/,6-in.

u-

groundstrap(par.55 n).

tch,loosentheterminalpostscrew(screw-

wnwirehavingthespadetypeterminalend.

crew(small instrumentscrewdriver)and

ngit counterclockwiseofftheswitchoperat-

"i,i-in.box wrench)whichholdstheswitch

el.Removetheswitchfromthe rearsideof

rwasherisusedbetweenthe switchbodyand


rremovalofthe starterswitch,makingsure

betweentheswitchbodyandbackofthein-

switchbuttonbyturning itclockwiseonthe

thenbackit offuntiltheidentificationname

e setscrewinthebutton.

nswitchislocatedonthe rightsideofthe

0).Thislever typeswitchmustbeturnedto

beforetheenginewillfire. Inaddition,the

egisterunless theignitionswitchisturnedon.

T,midget,Jl/32-in.

groundstraps(par.55 n).

postnuts (iy^->-in.midgetsocket,and

backofthe switchandremovetheblack

post andthe2blackand greenwiresfromthe

onnut(pliers)onthepanel faceandpull

ebackof theinstrumentpanel.



/ h t t p : / / w w w . h






hreversethe removalinstructions,connect-

opterminalpostandthe 2blackandgreen

terislocatedontheleft sideoftheinstru-

registerstherateofelectricalchargetoor

y.Theinstrumenthasa50-ampererangeboth

Withallelectricalswitchesintheir "OFF"posi-

ouldstandat zero.Ifareadingappearsunder

emattertoordnancepersonnelsothat the

ycanbetracedandeliminated.If theammeter

shouldbereplaced.

n.


postnuts (3/a-in.open-endwrench)and

age andpullthered wireofftheleftpost and

rightterminal.

-in.open-endwrench)andflat washers

kettotheammeter.Removetheclampwith

omthe2 instrumentterminalposts.Slipthe

gholeinthe instrumentpanelface.

edin subparagraph114babove.

rations,notingthatthelocatingbosson the

arecessinthepanel hole.Makesurethered

t terminalandthe2blackwiresto theright

WITCH.

eterandswitcharelocatedontheleft

el(S, fig.105).Thevoltmeterregistersthe

tricalsystem.Thisinstrumenthasan 8-to

rytosnap onthevoltmeterswitchinorder

r lightthebulbat thefaceofthecompass.

n.

open-endwrench)andlockanddiscon-

elowerterminal postonthebackofthe


/ h t t p : / / w w w . h





-15

-in.open-endwrench)andlocksfromthe

chholdthe clampbrackettotheinstrument

heleftmountingstud.Pull thebracketoff

meteroutthepanelfaceopening.

Toolsaslistedinsubparagraphb above.

ersingthedirectionsgivenfor removal.

box,%6-in.


crews(screwdriver)andremovethe2

postand theredwirefromthe upperterminal

onnut('-'-,(i-in.boxwrench)andring from

h theswitchbodyoutthepanelopening.

saslistedin subparagrapheabove.

installed,transferthejamnutontothe

stthenut sothattheswitchbodywill beflush

hentight.

epstocompletetheinstallation,connect-

elowerpostand theredwireto theupper

CUITBREAKER.

cfuelgageismountedon therightside

fig. 105).Thegageiscalibratedinquarters

tank(25-galcapacity)maybeapproximated.

uringengineoperation.Ifthe engineisnot

urn theignitionswitchtoits "ON"position

egageis wiredtoafloatunit onthefueltank

eris mountedonthegageandin thecircuit.

.

postnuts (3/8-in.open-endwrench)and

age.Disconnecttheblackandredwirefrom

tanceunitfromtherightterminal.

ts(%-in open-endwrench)andthegage

geoutofthe instrumentpanelhole.

oolsaslisted inparagraph116b.

ationstoinstallthegage,makingsurethe

ectedtotheleftterminalandtheresistance


/ h t t p : / / w w w . h






al.

open-end,'^2-in.

tsmountingthecircuitbreakertothe

el('^o-in.open-endwrench),removethe

driver)theheadsofwhichareon thefaceof

hecircuitbreakeroffthe mountingscrews

postscrews(screwdriver)anddisconnect

perpost andtheblackandgreenwirefrom

on.

grapheabove.

rections,makingsurethebreakeris in-

oststo theright.Connecttheblackandgreen

nd theblackwireontheupper post.

htswitchislocatedinthe upperright-

entpanel(M,fig. 105).Theswitchisof the

esthespotlamp only.

IVER,small,in-

ument

groundstrap(par.55 11).

crews(screwdriver)onthe backofthe

erwirespadeterminalfrom therightpostand

post.

onsetscrew(small instrumentscrew-

tonfromthe operatingshaftbyturningthe

ytopanellocknut (%,i-in.boxwrench)

epanelhole.Notethat astarwasheris used

ndthebackofthe instrumentpanel.

edin subparagraphhabove.

alledin thereversemannerofremoval.

stalled betweentheswitchbodyandtheback

gthe switchbutton,turnitclockwiseonthe

thebuttonuntiltheidentificationnameis

setscrew.Thesilver wireisconnectedatthe

eblackwireto theleftterminal.


/ h t t p : / / w w w . h





-15

htismountednearthe frontontheright

allsocketwhichpermitsadjustmentofthe

ngebythedriverwhilewithinthe cockpit.

fasteningcordsprotectsthelightlens when

H,box,%-in.

open-end,7/16-in.

screwdriver)attherear rightsideofthe

nnectthesilverwirespadeterminalfromthe

bleclipnutfrom thelightbasebolts(%0-in.

wrenches)andspreadthecableclipat the

boltandremovethecablefromtheclip.

%-in.boxwrench)onthelight tobasebolt.

ebase,notingthat theballjointtop washer

eningboltarepulled upward(fig.106).

ews(screwdriver)whichsecurethemetal

mpRemoval


/ h t t p : / / w w w . h






edeck.Pullthe capandgrommetofftheend

tandcableassemblyisto beinstalled,the

transferredtothe newcable.Installthe

thetop.)


eduretoinstallthespotlight.Makesureby

sebolt nutthatthelight issufficientlyrigid

onduringoperationoverroughterrain.

ndReflectorforServicing.

nd,y8-in.

ewdriver)andrimlugat thetopofthe

ogether(pliers)to springthelensretaining

ndlowerlug onthebody.Liftthelens out

o bereplaced,pushitinward,turnit

lit outwardanduptoclearthe diffuserplate

2cp.,12-16v).

ectoraretoberemoved,pullthe deflector,

emblyoutwardatthetop andlifttheassembly

assnut (pliers)holdingthelightwireter-

Removethedeflector,reflector,andbulbas-

tor,removethenut(7/a-in.open-end

Pullthebulb withsocketandthedeflector

mpBulbRemoval


/ h t t p : / / w w w . h





-15

hataspacerring isusedbetweenthesocket

and Reflector.Toolsaslistedinsub-

,installanewbulb byreversingtheremoval

ebulbwithsocket,deflector,andreflectorwere

ctionsgivenforremovalwheninstallingthe

gofthe light,thedeflector,reflector,andthe

he nutandstarlock,mustbe removedtoset

owthebulb location.Thisscrewmaybead-

ositionof thecradledbulbsocketaxis.

T.

ut-type,rearmarkerlightismountedto

ckcoamingatthe rightrearcornerofthe

emarkerlightisconnectedintheinstrument

nsonly whenthepanellightsswitchis pulled

open-end,y10-in.

ly,removethelightdoorscrew(screw-

he doorandliftthe doorandrubbergasket

wardoffthelightbody.Turnthe bulbcounter-

thebulbsocket(bulb1247,3 cp.,12-16v).

ghtassembly,pulltheblue wireoutofthe

ustinsidetheright rearcornerofthevehicle

ewithcoveringloomthroughthehole inthe

ruleatthelightandslip theloomoffthewire.

racketnut(%6-in.open-endwrench)and

htassemblyandwireoutof thebrackethole.

edin subparagraph119babove.

edure,makingsurethestarwasherisinstalled

gnutandthe undersideofthemounting

LIGHTSSWITCH.

pulltypeswitchislocatedonthe leftside

dcontrolsthe 2instrumentpanellightsandthe

5).

box,%6-in.


/ h t t p : / / w w w . h







ost screws(screwdriver)onthebackof

vethe2 greenandthe1blue wiresfromthe

gewire fromtheleftpost.


counterclockwiseofftheswitchoperating

(i-in. boxwrench)thatholdstheswitch

el.Removetheswitch.fromtherear sideof

astarwasherbetweentheswitchbodyand


stoinstallthe switch,installingthestar

hbodyandrearsideof thepanel,andconnect-

wiresto therightterminalandthe orangewire

switchbuttonbyturningit clockwiseonthe

thenturn ituntiltheidentificationnameis

buttonset screw.

LIGHTS.

relocatednearthemiddle oftheinstru-

eachsideof thespeedometer(F,fig.105).

entilluminationtomakeallof theinstruments

ness.Thelights cannotbeoperatedindividu-

ectedtoasinglecontrolswitchwhichlights

ownwardonthelampassemblytospring

romthepanel.

ng thebulbsocketoutofthe bodyor

nthe wire.Pushinonthe bulb,turnitcounter-

the socket(bulb-531cp.,12-16v).

acetheentirelight assemblyorthewire,

enwirefromtheright terminalofthelamp

oreremovingthelightassemblyfromthe


fthe removaloperationsperformed,reverse

rumentlightonthe panel.Makesurethegreen


/ h t t p : / / w w w . h





-15

ectedtotheright-handterminalofthelight

IGHTSANDELECTRICWIND-

breakerconnectedinthelightsand

ircuitfunctionstopreventdamagetothewiper

ntofanelectricalshortoroverload.This

eft backsideoftheinstrumentpanel(V,

open-end,*y32-in.

gnutsand locksbyholdinga'!/,.,-inch

utswhileturningthe mountingscrews(screw-

nstrumentpanel.Liftthebreakeroffthe

postscrews(screwdriver)anddisconnect

postandtheblackandorangeleads atthe


positionto bemountedwithitsslotted

tallthe blackwiretothetoppost andtheblack

ottomterminal.Completetheinstallationby

ctions.

ANDSWITCH.

cwindshieldwipersystemconsistsofa

massemblymountedatthe middleofthewind-

efromthe motortothepanelsocketatthe upper

ntpanel(A, fig.105)andapush-pullcontrol

open-end,s/8-in.

emotor bypullingthewireterminalend

poston themotor.

ssemblyfasteningscrew(screwdriver)

wiperarm.Pullthearmout andupwardto

aft.Removethemotorshaft endnut(screw-

cer.Removetheshafthousingnut(5/i-in.

lthewipermotorawayfromits mountingon

eremovalprocedureforthehandwiperis

tricwiperexceptthatnoshafthousingnut is


/ h t t p : / / w w w . h






aslistedin paragraph123b.

venforremoval.Oncompletingtheinstalla-

hecktheblade travelandrepositionthewiper

requiredtogiveequalbladetravelon thewind-

box,%„-in.


ost screws(screwdriver)onthebackof

vetheorangewireconnectedtothe rightpost

eftterminal.


counterclockwisetoremoveitfromthe switch

helocknut(%(i-in.boxwrench)holdingthe

entpanel.Removetheswitchfromthepanel,

sherbetweentheswitchbodyandrearside

saslistedin paragraph123d.

nstalledby reversingtheremovaldirec-

sherisinstalledbetweentheswitchbodyand

gewiremust beconnectedtotheswitchright

kwireto theleftpost.Turnthe switchbutton

gshaftuntiltight,thenturn ituntiltheidenti-

andtightenthe buttonsetscrew.

oval.

wireatthe socketontheinstrumentpanel

unterclockwiseandpullingit outofthesocket.

ftpostscrew(screwdriver)anddisconnect

ountingscrews(screwdriver)andpull

entpanel.

allation.Toolsaslistedin paragraph

ocedure,makingsuretheblackwireis

tchleftterminalpost.

STERSHIELDSWITCH.

ield.Thisunitfunctionstoheat asec-

so thatthedriver'svisionis nottotally

snow,oriceformationsonthe windshield


/ h t t p : / / w w w . h





-15

defrosterwithconnectingwiresandadhesive

alboxthatpermitssatisfactorystorageinthe

onthewindshield.Thedefrosteris operated

rightsideofthe instrumentpanel.

TERSHIELDINSTALLATION.

eglasssurfacewithinthedriver'scom-

d.

p toframethumbnutsonthe defroster

thesuctioncupswillbe flat.Covertheflat

swithadhesivefluidtakenfrom thetubefur-

withthewire terminalstotheright,on the

d,andallowatleast1-inchclearancebetween

sterframeandthehandwindshieldwipercon-

ntoftravel.Pressthedefrosterfirmly against

the4 suctioncuptoframethumbnuts,press-

ttheglass tocreateavacuumandsealthe

(fig.108).

witchterminalpostscrew(screwdriver)

backof theswitch,alsotheterminalscrewon

witch.Runthe defrosterwirestotheright

el,insert thewireendshavingspadeterminals

screws,andtightenthescrews(J, fig.105).

TERSHIELDREMOVAL.

edbydisconnectingthewiresat thecontrol

oncuptoframescrews,andsqueezingthecups

indshieldglass.

ieldSwitch.

box,%0-in.

ument

elddefrostershieldswitchlocatedonthe

ntpanel(J,fig.105),loosenthe 2terminal

onthebackoftheswitchbody.Pull offthe

romeachpost,notingthat thewireconnected

stothebottompost ontheignitionswitchand

ithinsulator).

onsetscrew(smalli nstrumentscrew-

counterclockwiseofftheswitchoperating

t(%6-in.boxwrench)thatholdstheswitch

el.Pushthe switchoutthebackofthepanel,


/ h t t p : / / w w w . h






efrosterShieldInstallation

susedbetweentheswitchbodyandrear side

tofthe windshielddefrostergroundwire.

saslistedin paragraph124b.

wedforremoval,makingsuretheangle

ledbetweenthe switchbodyandrearside

windshielddefrosterwires,theblackonerun-

hto thedefrosterswitchleftterminalpost.

turning itclockwiseontheoperatingshaft

uttonuntiltheidentificationnameishorizontal

screw.


/ h t t p : / / w w w . h





-15

NGINETEMPERATURE)GAGE.

dicator(enginecoolingsystemtempera-

he centeroftheinstrumentpanelandmay

hedriver(R,fig.105).The gagerangeisfrom

einstrumenthandand graduationfigureshave

permitsobservationofthegagein darkness.

open-end,%6-in.

.WRENCH,open-end,s/8-in.

artmentlid,turnthe sealingradiatorcap

movethecoolingsystemdrainplug (screw-

e hull,andopentheradiatordrain valveat

drainthesystem.Closethedrainvalveand

ead justbackoftheoil fillerneck,dis-

ntofthegage(s/8-in.open-endwrench).Un-

theflexiblegage tubetothemainwiring

rewdriver)onthe leftsideofthe2 con-

andthe4 nuts(7/i6-in.open-endwrench)

deof theconduits.Liftthecoverssufficiently

ndicatortube.

e,removethe2nuts (3/8-in.open-end

ampbracket.Pullthegage outthepanelface

flexibletubeandelementthroughthe clamp


nate

etube andelementbyreversingthere-

otbeany sharpbendsinthetube andcare

nstallationnotto crimpthetube.Thetube

lemententersthe cylinderhead.Thecoil

er.Coatthethreads oftheelementwith

nate,beforeinstallingitin thecylinderhead.

operationwiththeenginerunning,besure tofill

nspectforpossibleleakagewheretheelement

head.

.

oilpressuregageis locatednearthe

anelwithinquickglancevisionof thedriver


/ h t t p : / / w w w . h






rangeof thegageisfrom0 to80poundsand

henevertheengineisoperating.

.WRENCH,open-end,%G-in.

ine fitting(%0-in.open-endwrench)on

bendthelineout oftheway.

n.open-endwrench)andlocksfromthe

thegageout theinstrumentpanelfaceopen-

edin paragraph126li.

edure,makingcertainatightconnectionis

fitting.Operatetheenginetocheckthegage

hegage linefittings.

ometerislocatedinthemiddleof the

wtheline ofthedriver'sstraightaheadvision

eterhandandthe 10and20graduation

atingwhichpermitsobservationofthe instru-

edometerhasa0 to60-miles-per-hourrange.

otalvehiclemileageisintegralwiththe speed-

eagerecorder.Thetripmileagereadingmay

umbscrewonthebackofthespeedometer

drivecabletoinstrumentbodycouplingnut

gnutsand lockwashersonthespeedom-

dthefasteningbracketto thebackofthe

hestuds andliftthespeedometerheadout

Thespeedometercableisremovedbydiscon-

trumentbodycouplingnut (pliers)andthe

xleunit.


inremovalwheninstallingthe speedometer

ECONTROL.

estartingtheenginewhencold,acar-

olisprovided.Thecarburetorchokecontrolis

tpanelandis readilyaccessibletothedriver's


/ h t t p : / / w w w . h





-15

llingthechokecontrolbuttonoutwardshuts

ortoprovidearichermixture.As soonasthe

iformly,graduallyopenthechokevalveby

ontrolbuttontopreventoverchoking(par.8).

open-end,%6-in.

-in.

getocontrolwirecollarscrew(screw-

hokevalveoperatinglinkage,alsothescrew

lflexiblecabletothechokelinkagebracket

uisher.Removethescrew,lockwasher,

wrenchandscrewdriver)securingthechoke

othebulkhead.Opentheclip andremoveit

ontrolcableiscarriedin theconduitor

helf withinthecockpit.Toexposethecable,

ers,andflatwashers,(%6-in.open-endwrench)

ews(screwdriver),locks,andflatsfromthe

uit.Liftofftheconduitwhichisin twosections.

k(%6-in.open-endwrench)thatsecures

othebackof theinstrumentpanel.

semblyout themountingholeinthein-

enutand lock.


chokecontrol,insertthecablethroughthe

ughthelockandnut,withthe lockandnut

cksideofthepanel.Theflat locatedonthe

tregisterwiththeflatin thepanelmounting

ationbyreversingtheremovalprocedure.

chokeforproperoperation.Loosenthe

recollar(screwdriver)atthecarburetor

okecontrolbuttoninasfar asitwill go

nel.Holdthechokevalveandlever assembly

ndtightenthecontrolwirecollarscrewon the

ewsecuringthechokewirecabletothe linkage

TTLECONTROL.

etorthrottlecontrolbuttonontheinstru-

ssibletothe driver'srighthand(L,fig.105).

acceleratorpedaluppercontrolarmbya


/ h t t p : / / w w w . h






lingthethrottlecontrolbutton outwardin-

gine.It isusedwhenstartingthe engineand

inespeedduringthe warmingupperiod.

open-end,%0-in.

k(%e-in.open-endwrench)thatsecures

tothe instrumentpanel.

wdriver)inthethrottlecontrolwire re-

ecollarfromthewire.

yout themountingholeintheinstrument

andnut.

edin subparagraphliabove.

ssemblythroughthehole inthepaneland

ockandnutheldin positiononthebackside

ethrottlecontrolsleevemustregisterwith

tinghole.Insertthecontrolwirethroughthe

ontrolarm.Installthecontrolwireretaining

e roundendofthecollar towardthearmand

ttonin asfarasit willgoagainstthe

throttlecontrolwireretaininngcollaragainst

trolarmandtightentheretainingcollar screw

(fig.105).

mentpanelislocatedatthe frontofthe

ghtlybelowthefrontdeckto provideprotection

permit readyvisibilityandaccessibilityof

geofthe panelispaddedforprotectionto

(fig. 105).

H,open-end,y8-in.(2)

nd,7/!6-in.

open-end,%8-in.


gleverbyremovingthecotterpin and

ers).Movethe leversrearwardoutoftheway.


/ h t t p : / / w w w . h





-15

nletpipeat thebrassjamnut(3/8-in.and

es)andtheoutletpipeatthe bottomofthepump

renches).Disconnecttheoilpressuregage pipe

).Disconnectthespotlightsilverwire onthe

htswitch(screwdriver).Disconnecttheelec-

instrumentpanelsocket.Disconnectthecar-

eatthe acceleratorpedalcontrolarm(screw-

.open-endwrench),spacer,andnut

)fasteningthecompassmountingbracketto

emovethe2 capscrews,flatwashers,lock

thepanelto theuppersupportbrackets(Vz-in

e).Removethe2capscrews(V^-in.socket,and

hers,andnutsthatsecureeachsideof thepanel

ngthatthewiringharnessclip bracketisheld

crewandtheaxleunitventilatorpipe clipby

Also,notethat thefrontbombcasewiretub-

owermountingboltsateachside.

ownaslimitedby theinstruments,con-

ecessary,removethecompassandmounting

3b(3)).Toremovethe panelfromthe

esandlinesasdirectedunderthe paragraphs

mentsandcontrols.


talledby reversingtheremovalprocedure.

neededotherthanto makesuretheprimer

nnectedsecurelyandallwiresareconnectedto

evarious electricalgages.

G.

ringiscontainedina mainharnessand

ms.Themainharnessconnectsthecontrols

ntpanelwith therelatedunitsin theengine

edintheconduitor channelontheright-hand

neauxiliaryharnesscarrieswireswhichcon-

urrentand voltageregulator.Theotherharness

gtheregulatorwiththelargefiltermountedon

ecompartmentrightforwardwall.Nospecial

equiredinconnectionwiththeelectricalwir-

ntthatall terminalsandconnectionsbekept

ationofthe vehicleandunits,electrical

nce(fig.109).


/ h t t p : / / w w w . h





NDELECTRICALACCESSORIES


/ h t t p : / / w w w . h





-15

CESUPPRESSION.

erferencewiththeradioequipment,the

learefully suppressed.Suppressorsareused

theplugs.Also,a suppressorisusedonthe

hecoilanddistributoratthe distributor.The

t,theignitioncircuit,andammeterleadsare

efilters.Thesefiltersaremountedina group

ginecompartmentrightforwardwall.Con-

switchside oftheignitioncoiland atthearma-

tor.In ordertoprovideadequategrounding,

gulator,ignitioncoil,largegroup filter,andthe

ntedwithinternaland externaltoothwashers

ntsoftheunits andthesurfacestowhichthey

stheseunitsrequiredefinitegrounding,the

the mountingboltskepttightatall times.

acterizedbyaclickingsoundintimewith

o anyoneorseveralcauses.Thedifficulty

onsystemunitsor wiring.Acrackeddistribu-

dterminalswillcontributetoradionoise.If

e,thecapmust bereplaced.Thesameistrue

hatanyevidenceofacrackorburned elec-

entoftherotor.Inorderto eliminateradio

hecheckmustalsoincludea carefulexamina-

.A completereplacementofwireshaving

nmustbemade.A sparkplugwithcracked

odeswillcontributetoradiointerferenceand

ition coilisatfault,as determinedbyasub-

atisfactory,itmust bereplaced.Replaceany

nsers,orsuppressorswhichproveto beatfault.

ehicleinspection,allgroundsmustbechecked

danydefectivepartsmustbereplaced.

tectedas arhythmicwhineintimewith

nthegeneratorchargingcircuitwhichincludes

rwithassociatedwiringaswellas thegenera-

ultfromfaultyunits inthesystemorfrom

smallcondensermountedonthegenerator

cementincaseofinterferencehavingthis

etheconditionofthebatterybytestand,if

argedbattery.Iftheconditionis notelimi-

ergroupbyreplacement.

regulatormaybe responsibleforaradio

whichthesoundisintermittentandnot timed


/ h t t p : / / w w w . h






speed.Aregulatornoise mayresultifthe

sarelooseor ifthesmallfilter whichis

egulatorisshortedor open.Toremedythecon-

ormountingboltsandreplacethe filteras

isnoteliminated,theregulatormust bere-

eration,allconnectionsintheelectrical

ekeptcleanand tight.Inaddition,itis im-

oltsfor theenginecompartmentlidbekept

ensatorsaresuspendedthroughfourrubber

ssmountingbracketwhich,inturn,is secured

ha supportbracketandabracefromthesup-

e compassislocatedimmediatelybelowand

strumentpanelface,andit iseasilyvisible

hedriver.A smalllightilluminatesthecom-

redtothevoltmeterswitchsothat thelight

his operatedtoclosethevoltmetercircuit.

ssealedinfluid andwilloperateupto 15

Exercisecaretoavoidstrikingand breaking

edindicator.

he compasscontainsacompassaccessory

tsrequiredto compensatetheinstrumentafter

n thevehicleistobe operated.Compensation

swill behandledbyordnancepersonnel.

mountingbracketassemblyisremovedand

H,open-end,3/8-in.

open-end,~,\,;-in.

ENCH,socket,Vi0-in.

crewdriver)oneachsidewhichhold the

othecompasscase.

sslightwiresbyremovingtheblackwire

witchterminal(screwdriver)andthered

rmountingstud(3/8-in.open-endwrench).

mountingbrackettohullbracebolt,nut,

sbracket(7/j0-in.boxwrenchanda "\^-\n.


/ h t t p : / / w w w . h





-15

(~1(i-in.socketwrench)withlockand

nd locksthatsecurethecompassmounting

panelsupportbracketTheforwardnuts

ththefingers whiletheentireassemblyis

ocedurewheninstallingthecompassand

bly.

edandinstalledas follows:

eoutthe 4screwsfasteningtheleftside

ovetheplate.

assunitwith thelefthand,removethe4

efacewhichsecurethecompasstothecase.

wardsothatthe projectionontherearof

themountingbracket.Thenliftthecompass

ecase.

ompassinthecase,reversethestepsgiven


/ h t t p : / / w w w . h





8

ION.

sprovidedtodemolishthevehiclein the

rytoabandonitwhilein acombatzone.The

mercontrolswitch,threebombcases,detona-

r,andanelectriccircuitfordischargingthe

chhavingacapacityofthreepoundsof TNT,

beinglocatedon theforwardfaceofthebulk-

ssistantdriver'sseat;one ontheinnerwall

edriver's seat;andoneonthe leftofthe

eachbombcasecoverisa warninglight,det-

tricalwiringconnector.

quipmentandWiring


/ h t t p : / / w w w . h





-15

dinpositionand arenotremovable;how-

dilyremovedbylifting upwardtopermitthe

ges.

ofadeviceto dischargethebombs5min-

erationbybreakingtheglassfaceof thetimer

gtheredtimercontrolpin. Thetimercontrol

forwardfaceofthebulkheadandis readily

driver.

ET,%6-in.

bulkhead,removethe2nuts(%6-in.socket

ndle),lockwashers,andflatwasherssecuring

e forwardfaceofthebulkhead.Disconnect

asewires atthesocketinthe bottomofthe

ngthewire connectorclockwise.Thenpull

sforwardand offthebulkhead.


edurewhenreinstallingthetimercontrol.

NER.

arriedina metalcasemountedonthefor-

tothe rightofthetimer control.Thecontainer

assistantdriver.

ET,7/16-in.

H,open-end,%6-in.

secover.Usinga%0-inchsocketextension,

nchopen-endwrench,removethe2bolts,nuts,

herssecuringthecasetothe forwardfaceof


edure.


/ h t t p : / / w w w . h





CTIONS.

onatorsinthe bombcasesbeabsolutely

htmountedoneach bombcaseisnotlighted.

sthatthecircuitthrough thetimercontrol

ted,andthebombswill becomeimmediately

rgeandif thedetonatorsandelectricalcon-

ring position.Thedetonatorsmustnotbe

sif thewarninglightsarelighted.

previously,liftoff thebombcasecoverand

gesofTNT.Replacethecover.

ipmentinOperation.

secoverand remove3detonators.This

dbytheassistant driverwhothenpasses2

installationin theforwardbombs.

socketcoverfromthetop ofthebombcase

clockwiseandliftingupward.Insertadeto-

connectorwithwirefromthelightcircuit

overbyturningit counterclockwiseandlifting

nectoronthedetonatorsocket,pressthe

urnit clockwise.

thetimercontrolcaseusingthebutt of

ool orpieceofequipment.Pullthered timer

mpletelyoutofthetimer controlcase.Re-

ntrolpinplacesthetimerin operation.Five

thecontactpointswithinthe timercloseto

cuitanddischargethebombs.


/ h t t p : / / w w w . h





-15

sts139

140

CLATURELISTS.

tomaticpistol,andsub-

e,andautomaticgun....SNLT-l

1A1SNLB-28

,Thompson,M1928A1

antitank)SNLB-36

Browning,M1918,

SNLA-4

(Studebaker)SNLG-154

dlubricatingmaterials;re-

miscellaneousrelated

clatureListsareastabulated

NL'sis maintainedinthe

SupplyIndex"OPSI

CATIONS.

cal..30,alltypesTM9-1211

M9-294

un,cal..45,M1928A1.FM23-40

un,cal..45,M1928A1TM9-1215

M23-7

bricating,andweldingma-

uedby theOrdnance

1-455

630

528,andSCR-538TM11-600

454


/ h t t p : / / w w w . h





ction.

nanceTM10-525

ecautions,accidentsTM10-360

nsTM10-545

ender,andradiatorrepairsTM10-450

10-580

M10-540

attackFM21-40

M1-455

0-550

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