tm 9-707 basic half track vehicles (ihc)

8/22/2019 Tm 9-707 BASIC HALF TRACK VEHICLES (IHC)

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LES(IHC)

5,CARM9A1

ARRIAGEM14,AND

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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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



RDEPARTMENT

,May21,1943

LES(mo

CARM9A1,

ARRIAGEM14,AND

onofthe

ternationalHarvesterCompany)

atingInstructions

43-21

ration5—722— 32

ntrolsand

-35

ivemain-

— 69

-76

owageon

ualconditions31-40113-120

TM9-711A,Half-trackPersonnelCarrierMS.

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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LES(IHC)(PERSONNELCARRIERMS,CARM9A1,

ARRIAGEM14,ANDSIMILARIHCVEHICLES)

enanceInstructions

eallocation

equipment

rack

es

bsorbers

nsfercase....

heelbearings..


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tingInstructions

toftext2

for theinformationoftheusingarms and

alf-trackPersonnelCarrierMS,Half-

unMotorCarriageM14,andother similar

acturedbyInternationalHarvesterCompany.

tionofthevehicles,thismanualcontains

uiredfortheidentification,use,andcareofthe

y,andsuchrepairsasmaybehandledby

beundertakenonlyunderthe supervisionofan

nic.

atureoftherepair,modification,oradjust-

or facilitiesoftheunit,theresponsibleordnance

dsothattrainedpersonnelwith suitabletools

ovided,orproperinstructionsissued.

GEMENTOFTEXT.

gpersonnel(crews)isinPart One,sec-

ormationfororganizationalmaintenanceper-

chanics)isin PartTwo,sectionsVIIIto

ferencesisavailablein sectionXXVIII.

escribedinthismanualare ofhalf-track

dies.Eachvehiclehasa speciallydesigned,com-

eardrive,truckchassiswithanarmoredhull.Each

nventional6-cylindergasolineengine.

rrierM5.Thisvehicleisillustratedin

rsonnelcarrierisdistinguishedbythe seating


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







onnelCarrierMS— TopView

13,a pedestalmount,andthepresenceofa

ver'scompartmentseats,andtheremaining10

ngthwiserowsof5each.

isvehicleisillustratedinfigures 4to

ngarrangementfora crewof10,agun ring,

oor.Thedriver'sseatand commander'sseat

rtment.Athirdseatisjustbehindthe driver's

estowardthefront.Theremainingseatsare

atthefueltanksand 1facingtherearjust

compartmentseat.

ageM14.This vehicleisillustratedin

andisdistinguishedbytheseatingarrange-

dthetwinmountmachinegun.Thereare


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http://slidepdf.com/reader/full/tm-9-707-basic-half-track-vehicles-ihc 6/441 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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ES(IHC) (PERSONNELCARRIERMS,CAR M9A1,

RRIAGEM14, ANDSIMILARIHCV EHICLES)


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9A1- TopView

ntseatsandtheremainingtwoseatsfaceeach

edriver'scompartment.

Themanufacturer'schassisserialnum-

elocatedon aplateattachedtotheright side

eenginenumberis stampedonapadonthe

thecrankcase.


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LES(IHC)(PERSONNELCARRIERM5,CARM9A1,

RRIAGEM14,ANDSIMILARIHCVEHICLES)


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ES(IHC) (PERSONNELCARRIERM5,CAR M9A1,

RRIAGEMl4, ANDSIMILARIHC VEHICLES)


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esignedfortravel onhighwaysand

otiatesteepgradesandroughterrainpro-

ed.Approachanddepartureanglesareillus-

3.

tedby% 6-incharmorplateatthesides

hield oneachdoorisprovidedto increase

otectionforthedriver'scompartment.These

idedoorsandsupportedin theuprightposition

he doors.Visionslotsareincorporated.The

onthehood anddoorsandisassembledwith

etynuts.Thebodyarmorplateis welded.

esorshutters,madeof^6-incharmor

ectionoftheradiator.The shuttersareoper-

therightsideof thedriver'scompartment.

onsbetweenfullyopenandfullyclosedare

ctionis affordedtheenginebythe

madeof twodoublepanelshingedtogether

chesoneachsidepanelsecurethehoodwhen

15). Theshatterproofglasswindshield

onswhichareheldin positionbysixhalf-

Aprotectiveshieldof s/8-incharmorplateis

dishingedat thetoptothe windshieldsup-

eopenpositionby threesupportrods.Before

eisloweredinto theclosedposition,remove

dshield.

GE.Thecauseofwindshieldbreakage

orereplacingglass.Unlesstheglassis struck

maybecausedbyunusualtwistingofthe

rsresultingfromvibration.

AL.Toremovethewindshield,loosenthe

wingnuts.Toremovethewindshieldwiper

clipat thebottomofthewiperarm and

mtheshaft.


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le


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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



gle

onslotsareprovidedin thearmor

becoveredbyasliding panelofarmorwhich

mbscrew.

ecanvastarpaulinissuppliedwiththe

coverwhendesired.

detachablecanvastopis supported

bowsandthewindshieldframe.Removable

entwindowsarealsoprovided.Thetopis

pfastenersthatattachtofootmanloopsaround

s adjustable,whilethecommander'sseat

ed.Thecenterseatbackscanalsobefolded

sareprovidedforallseats.Thesecushions

tenersand blanketsmaybeinserted.All

chablefordecontaminationpurposes.


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ARRIAGEMl4,ANDSIMILARIHCVEHICLES)

FT

SEMBLY

M

ADE

H

AMP

MP

etails

RT

REW

ORT

AINER

LATE

GCLAMP

etails— Armor


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ativesizeandperformanceofthevehicle

ONS.

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n. 27f t11in.

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fertosectionVI.


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OPERATION

eengine, 6

nthefollowingparagraphsareillustrated

ust becomethoroughlyfamiliarwiththeloca-

devicesbeforeattemptingtooperatevehicle.

M.Thevehicleissteeredbyuseof acon-

echanism(fig.265).

EDALS.Thepedalsareofconventional

usualpositionsrelativetothebaseof the

trolbuttonislocatedatthe leftofthe

trolbuttonisconnectedtothechokeby cable.

buttonispushedall thewayinagainstthe

Thethrottleiscontrolledbya footac-

rottle controlbuttonlocatedontheinstrument

acceleratorpedalisconnectedtothethrottleby

ehandcontrolbuttonisconnectedtothe

ntrolisusefulfor startingbutnotfordriving.

fectedbypedaloperationbutthepedalis

ontrolispulledout (fig.16).

NDBRAKE(figs.272and273).The

e,frontaxleengagement,anddriveshaftbrake

din thecustomarymanner.Theratiosinthe

nsmission)shouldnotbechangedwhenthe

Thecontrolleverfortheradiatorshutter

side inthedriver'scompartment(fig.16).

tandrightventilatorsbelowthedash

nnectedbuttonsmountedontheinstrument


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OPERATION

Thesedevicesarecontrolledbybuttons

vemechanismswhentheengineisrunning

NGUPTHEENGINE(figs.16and17).

eforestartingtheengine,makethebe-

tlinedinsectionIV.Theprocedureoutlined

raverageoperatingconditions:

curelyandplacethetransmissiongear

8).

ueltanksand makesurethatthefuel

river'sseatis open(fig.231).

on;pulloutthehandthrottle button

g.16).

alto disengagetheclutchandeasethe

dpushthestarter button(fig.17).

momentthe enginebeginstorun.Never

morethan10to15 seconds.Iftheenginehas

rials,allow thestartertocoolfor atleasta

o startormakesafalse start,donotpress

til theenginehascometoa completestop.

aution,especiallyafterafalsestart,may

motordrivehousing.

arted,slowlyreleasetheclutchandad-

chokecontrolstopreventtheenginefrom

neruns smoothlyorwarms,up(approxi-

chokecontrol.Excessiveuseofthechoke

gine oil.Duringtheenginewarm-upperiod,

losedandoperatetheengine at800to1,000

ndicatedbythetachometer.Theengine

of around300to400revolutionsper minuteas

ter(fig.16).

theengineflywheelbuttheenginefails

mpts,followproceduregiveninparagraph

gagestheengineflywheelandlocks,

tton,turn offtheignition,placethetrans-

sethe brake,andpushwithanothervehicle.


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OPERATION

GAG

SAR

T

R

RL(

LATE

TROL

FO

VER

S

ER

SAFT


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OPERATION

AR

L

Plate

enthestartingmotormountingscrewsand

ntilits gearreleases.Retightenthestarting

ndtestthestarteragain.

urn,butthe-lightsdim whenthestarting

arterbearingsmaybe gummedor"frozen"

startshouldonlybedone inanemer-

vehicle,theengineshouldbe turnedoverby

ons.Thetowingvehicleshouldbe placedin

towedshould beplacedinhighgear.The

rchoked.Afterthevehiclestarts moving,the

eshouldbeengagedsmoothly.Aftertheen-

eignition switchshouldbeturnedon.

LE.

d.Aftertheengine hasbeenthoroughly

orsatisfactoryoperation,startthevehicle

e.

lly.

edrive.

shiftl everintohighposition.

gearshiftlevertothe selectedposition

algradually,andatthe sametimeslowly

edaltoincreasethespeedofthe engine.Donot

hevehicleison agrade,onemethodof

lly.


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







edpositionofthetransfercasegearshift,

andthe transmissiongearratio.

rto thefirstspeedposition.

utch,releasehandbrakeasengine picks

eenginebymeansof thefootaccelerator.

enableadrivertojudge atwhatrates

dbemovingbeforehe shiftsfromalowerto

shouldnever bepermittedtolaborunduly

os wouldimproveoperation.

ftgearsfromanyspeedtoa lowerspeed

h,maketheshifttothe nextlowerposition,

hesametime depresstheacceleratortomain-

ehicletoa haltwhenattemptingtoshiftinto

edalfully.Shiftleverintoreverse,beingsure

emerearwardposition,andthengradually

gs.12and 273).

nthetransfercaselowgearisused,the

ngaged.Toshift theauxiliarytransmission

direct)tolow (under-drive)forheavygoing,

etheclutch,shiftthemaintransmissionto

sfercasegears,lightlyengagingand disengag-

y engagetheclutchtooperatethevehicle.

nfromsecondtothird andhighasthe opera-

icleisoperatedat extremelylowspeedsfor

selowgearofthetransfercasewiththe front

thevehicleisbeingoperatedwith theunder-

iftbacktothe directrange,stopthevehicle

gagetheclutchandshiftthe transfercase

permitstopping thevehicle,theshiftcanbe

otion.Disengagetheclutch,shiftthe transfer

theclutchcarefullytopreventshocktothe

s.18and270).

Thedriver'sfootshouldrest onthe

atingit.

tchsuddenly.Asuddenengagementis

mandmaystallthe engine.

edisengaged,isshouldbe disengaged

andshifting difficulties.


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OPERATION

eedratio'toanother,donotskipposi-

ntaxledrive shouldbeengagedand

owrange beforethevehicleleaveshard

ehazardousconditions.Drivenbywheelsand

rseastretchofmud,snow,ice,or sandwhich

rallywiththe reardriveonly.

LEDRIVE.Iftheengagementcannotbe

whileturningthe vehicletorightorleft.The

tlydifferentspeedswhile thevehiclenego-

ein theirspeedspermittingthemtoengage.

ver.

AXLEDRIVE.Itisgenerallyfoundmore

ontaxledrivethan toengageit.Actionis

atemanualeffortonthe shiftleverwhilethe

rst orreversegearandwithfront wheels

denshocktothedrivingparts wheninlow

madeto preventsuddenshocktothedriving

eciallyifthe vehiclerollsbackward,nomat-

Ifthereisanytendencyfor thevehicleto

ateorsteepgrade anditis desiredtogetunder

nsubparagraphbabove.Ifit isnotconvenient

ouldconditionspermit,byall meansallow

undercontrolofthe brakes,toastandstill

forward.Failuretoobservethesesimplepre-

pingof driveshaftgearsandshafts.

plicationwillreducethewearofbrake

tionshouldbegradualwithjust enoughforce

result.CAUTION:Inanticipatingastop,the

of theenginebrakingeffect,disengaging

stallingtheengine.Whendescendinghills,

engineasabrakeby usingthepropergear

esfromtime totimetopreventoverspeeding

ouldnotbe turnedoff.Theenginespeedwhen

no greaterthan2,600revolutionsperminute.

cessarytogivethedesiredresultsshould be

eisstartedup ordownthehill.Attemptingto

ehas starteddownasteepslopemayresult ina

terpassingthroughwater,thebrakes

thevehicleoperateduntilsufficientheathas

brakes.


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







stallation

eleasethegasthrottle,applythe foot

andshiftthetransmissionintoneutral.Do not

ydisengagingandengagingthe clutch.

ouldalwaysaccompanythevehicle.

rviceableconditiontopermitinstallationwith

ovepromptlywhennolongernecessary,in

arydamagetotiresandroads.

ouldbeappliedbeforethe vehiclebe-

mannerthat rotationofthewheeltendsto

fchainsareimproperlyinstalled,rotationof

nfastenersandthe chainswillbelost.Chains

wheels.Chainsandchainapplicatorsarepro-

).NOTE:Chainsshould notbeinstalledon

serattachmentwithoutfirstgrindingoff the

minateanyincorrecttwists.

nwhichhasfourfreelinksbetweenthe

uide wheelontherearsectionof thetrack.

ldtrailinbackof vehicle.

themaleportionofthe applierthrough


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OPERATION

KLE

kChain

dechain,thenslide itontothetrackas far

egonthetreadside ofthetrack.

thefemaleportionofthe applierthrough

esidechain;thenpushthis cliporapplieronto

themaleportionwiththe longerlegonthe

overthelongendof themaleclipand

edgesofthetrack.

hechainbehindthevehicletoline up

stgear,low range,andmovevehicle

ninther earofeachtrackshouldfeedthe

cks.NOTE:Extremecaremustbeusedby

sontothe trackssothattheirhandsor feet

hain.

lipsare centeredbetweentherearbogie

et.Ifin mud,bringclipsaroundtostarting

aleportionsofapplierand fastenends

wpinjoiner shacklesprovided.Donotmislay

ecompartmentforfutureuse.

edathigh speeds,checkinstallation

omakesureofclearancebetweenchainand


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Chainsshouldbeappliedas tightaspossi-

tinually,checkchainsoccasionallyandtake

chains.

moved.Whenremoved,chainsshould

l, andreplacedinvehiclestowagecompart-

for futureuse.

lation.

inateanyincorrecttwists.

verthetirewiththe gapbetweencross

ingfromeitherend ofsidechain)coming

re.Sidechainwithrod attachedmustbeon

chaintowardthe insideofthewheel

sy reachofthelastlink ontheinsideside

deofthe vehicletherodisthrust from

side,therodis thrustfromreartofront.

astlinkof theinnersidechain.

e tire.

hain.Thelinkshangingfreemustalways


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NTROLSAND

nd23).

arriageM14 isequippedwithawinch

e frame.Powerforwinchoperationissupplied

lebyapowertake-offunitmountedonthe

hewinchcanbe usedasanauxiliarysource

veamiredvehicle.Itcan beusedtomove

cleonwhichit ismountedbyriggingthe

ocktosuitableanchorage.

ya leverinthedriver'scompartment

ndlemountedon thewinch.Theleveris

ya safetycatchwhichmustbeliftedbefore

drumclutchcontrolandpull offre-

heline isundertoomuchof astraintopermit

depressvehicleclutchpedalandshift power

earwardpositionoflever).Slowlyrelease

tchcontrol,depressvehicleclutch

fintoforwardspeed,thenreleasevehicleclutch

rationiscontrolledbythe vehicleenginespeed.

vehicleclutchpedalandshift power

positionoflever).Theloadwillbe heldby


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- LessCable-RightSide

oad.Depressvehicleclutchpedaland

verse(fullrearwardpositionoflever).Release

- LessCable-LeftSide


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NTROLSANDOPERATION(WINCH)

hShowingDrumClutchandDragBrake

ndintervalsforthe lubricationofthis

arDepartmentLubricationGuide(fig.24


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NTIVEMAINTENANCESERVICE

4

5

yservice17

vemaintenancebasicinstructions18

rocedures19

monthly)and6,000-mile(6-month)

ficiency,itisnecessarythatvehiclebe

atintervalsinorderthatdefectsmaybedis-

foretheyresultinseriousdamage.Certainsched-

eswillbeperformedatthesedesignatedinter-

in thissectionarethoseperformedbydriver

duringoperation,athalt,afteroperation,and

enanceservicesarelistedonthebackof

reventiveMaintenanceServiceRecordWD

lesofall typesandmodels.Itemspeculiarto

tedonWD FormNo.48arecoveredinmanual

swithwhichtheyarerelated.Certainitems

notpertainto thevehicleinvolvedareelimi-

saswrittenintothe manual.Everyorganization

chdriverinperformingthemaintenancepro-

lswhethertheyare listedspecificallyon

FormNo.48thatapplyto thisvehicle

alto providespecificproceduresforaccom-

nsandservices.Theseservicesarearranged

conservethetimeofthe driver,andarenot

mericalorderasshownon WDFormNo.48.

er,areidenticalwiththoseshownonthatform.


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





ofeachitemappliesalso toanysupport-

,andgenerallyincludesachecktoseewhether

on,correctlyassembled,secure,orexcessively

dcondition"isusuallyan externalvisual

hethertheunitisdamagedbeyondsafeor serv-

odconditionisexplainedfurtherby thefol-

wisted,not chafedorburned,notbrokenor

d,notdentedorcollapsed,nottorn orcut.

nittosee thatitis "correctlyassembled"is

nspectiontoseewhetherit isinits normal

vehicle.

ttodetermineif itis"secure"isusuallyan

on,ahand-feel,orapry-barcheckforlooseness.

ncludeanybrackets,lockwashers,locknuts,

susedin assembly.

beunderstoodtomeanworn,closetoor

,andlikelytoresultin afailureifnot replaced

inspection.

houldbeadvisedthroughthe localord-

ctroublesortechnicalfailures.Anysugges-

ftheserviceprocedurebasedon actualoper-

kewisebeforwardedsothatallunits maybenefit.

ERVICE.

eisdesignedprimarilyasa checktosee

en tamperedwith,orsabotagedsincetheafter

formed.Variouscombatconditionsmayhave

feforoperationandit isthedutyof thedriver

otthe vehicleisinconditiontocarryout any

gned.Thisoperationwillnotbeentirelyomitted,

tuations.

rationserviceconsistsofinspecting

ngtotheproceduredescribed,andcorrecting

es.Uponcompletionoftheservice,results

tlytothedesignatedindividualin authority.

DAMAGE.Lookforanyinjurytovehicle

sof loadshiftingortamperingwithvehicleload


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insmustbefastenedsecurely.Raisehood,

or sabotage.Tofacilitatestarting,dryspark

ng,iftheyappearwet.

SHERS.Shaketobesure theyarefully

WATERLEAKS.Lookatallfiller points

aterialputin. Addasneedis indicatedbyfuel

fwaterin fillerneck.

ANDDRIVES.Seethattheyaresecure,not

nt;seethatthefan beltsareingoodcondition

flection.

AL.Lookongroundundervehiclefor

ase.Traceanyindicationstosourceandcorrect.

ontrolthroughentiretravel foreaseof

tivenesswhenstartingengine.

UP.Observeanytendencytowardhard

peed,andifstarting motorengagesanddis-

nusualnoise.Idleengineonlyfastenoughto

easenginewarmsup.

GAGE.Watchforunusuallylowor no

nusualfluctuationofindicator;ifone ofthese

opetigineimmediatelyandreport.

h(-)- )chargingrateforfirst fewminutes

tpositive( +)chargeat idlingspeedwith

snormal.Anyunusualdrop orcontinuedhigh

nelectricalsystem.

EGAGE.Gradualincreaseintemperature

correctoperation.Normaltemperatureis160F

WINDSHIELDWIPERS.Iftacticalsituation

bservetone.Seethat windshieldwiperarms

rdamaged.Operatetobesureof function-

secure.

EARVISIONMIRRORS.Wipewindshield,

umentglassthoroughlycleanand inspectfor

mirror.


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psmustbesecurelymounted.Iftactical

alllampswitches.Lampsmustlightwhenon.

tedwhenoff.Applybrakepedal tobesure

nsmustbe cleanandunbroken,reflectorsnot

FLANGENUTS.Seethatall arepresent

RACKS.Tires:70poundspressure,max-

rdamageandseethatthereare noembedded

s.Seethat tracktensionissatisfactoryand

ectsintreads andbetwentracksandbogie

DSUSPENSIONS.Seethattheyaresecure

NKAGE.Steeringgearcaseandall con-

cure,notdamaged,andnolubricantleaksin

DBUMPERS.Observefordamageand

NNECTIONS.Seethattheyaresecureand

ctriccablesconnectedandsupported;safety

enmotorvehicleandtowedvehicle.

D,ANDTARPAULINS.Inspectforcondition

NATOR.Fullychargedandsecurely

EQUIPMENT.Checkagainstvehiclestow-

sare present,serviceable,andproperlystowed.

RATION.Shouldidlesmoothly.Accelerate

andlistenfor anyunusualnoisethatmayindi-

ustleaks,worn,damaged,loose,orinadequately

accessories.Noteanyunusualsmokefromthe

RMITANDSTANDARDACCIDENTFORM

.

RATIONCHECK.Asthevehicleisfirstput

ervationsoftheduring operationserviceimme-

oadtest.


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SERVICE.

motion,listenforanysoundssuchas rattles,

hatmayindicatetrouble.Lookforindications

mandsmokefrom anypartofthevehicle.Be

odorofoverheatedcomponentsorunitssuch

tch,fuelvaporfroma leakinfuelsystem,

oftrouble.Anytimethebrakesareused,

rned,considerthisa testandnoticeanyunsatis-

mance.Watchtheinstrumentsconstantly.Notice

entindicationthatmaysignifypossibletrouble

umentapplies.

rationservicesconsistofobservingitems

heproceduresfollowingeachitem,andinves-

serioustrouble.Noticeminordeficienciesto

tearliestopportunity,usuallynextscheduled

NDBRAKES.Tryhandbrakeleverfull

eofone-halfratchettravel.Applyfootbrakes

tion,nosidepull. Foot-to-floor-boardclearance

erveforchatter,squeal,orslip.-nenfully

to2inches.

N.Testforeaseofshifting,quiet opera-

mesh.

estforeaseofshifting,quiet operation,

.

ONTROLS.Beonthealert atalltimes

icleforany abnormalengineoperatingchar-

roperresponseto thecontrols.Noteanyloose-

necontrolmechanismandlinkage.

S.Toseeifthey areindicatingproperly,

nstrumentsfrequentlyas follows:

rmalrangeapproximately180F.Redlight

ressure,suddendrop tolowreading,or

ngineandreport.

argerateforfirst fewminutesafterstart-

-(-) chargeatidlespeedwithaccessoriesand


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






usualdrop orcontinuedhigh(-)-)charging

ctricalsystem.

fornoiseorgrindingandfluctuationof

stickingneedleandincorrectindications

meter.Observeforunusualnoiseorgrind-

e.Seethatodometeris registering.

AR.Observeforlooseness,binding,pulling

mmy,orunusualnoises.

R.Listenforanyunusual noiseinthe

ockabsorbers,tracks,andbogiesuspensions,that

magedpartsor units.

yunusualnoise inthebodythatwould

panels,doors,hardware,gunmounts,orattach-

regardedasminimummaintenancepro-

formedunderalltacticalconditions,even

aintenanceservicesmustbeslightedoromitted

cesconsistofinvestigatinganydeficien-

n,inspectingitemslistedbelowaccordingtothe

tems,andcorrectinganydeficienciesfound.De-

ouldbereportedpromptlytothedesignated

DWATER.Replenishasrequired.

ES;HUBS,BRAKEDRUMS,TRANSFER,

ES.Feeltheseassembliesforoverheating.Trans-

runhigherthan othergearcases.

ANSFERVENTS.Wipeoffdirtor grease

.Removeandclearifnecessary.

HAFTS.Examineforlooseness,damage,

akage.

SUSPENSIONS.Examineforlooseness,

KAGE.Examineforlooseness,ordamage.


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







LANGENUTS.Allmustbe presentand

ACKS.70poundstire pressure.Check

mageandembeddedobjectsintreadsand

assemblies.Observeiftracktensionissatis-

ERAL.Lookunderthevehicleandunderthe

,oil,coolant,orbrake fluidleaks.

ESANDBELTS.Examineforlooseness,dam-

ent.BelttensionV2-inchdeflection.

RS.Mustbesecureandair passagesclear.

yoperation,cleaningandservicingwillbe

ndicatedinscheduledservices.Followspecial

pecificconditionsencountered.

NDBUMPERS.Secure.

NNECTIONS.Mustbesecurelyconnected

connectionsmustbeingoodconditionand

attachedcorrectly.

D,ANDTARPAULINS.Examinebodyand

EANDGLASS.Cleanwindshield,rearvision

okforloosenessor damage.Adjustmirror.

NDWEEKLYSERVICE.

gisparticularlyimportantbecauseatthis

vehicleto detectanydeficienciesthatmay

ctsthoseheispermittedto handle.Heshould

ignatedindividualinauthoritythe resultsof

uleis performedthoroughly,thevehicleshould

moment'snotice.Thebeforeoperationservice,

ennecessaryonlyto ascertainwhetherthe

ditioninwhichitwasleftupon completionof

e.Theafteroperationserviceshouldneverbe

tremetacticalsituations,butmaybereduced

ervicesoutlinedfortheat haltserviceif

ormingtheafteroperationservicethe

dconsideranyirregularitiesnoticedduringthe


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






,duringoperation,andat haltservices.The

nsistsofinspectingandservicingthefollowing

fteroperationservicethat aremarkedbyan

onalweeklyservices,theproceduresforwhich

of eachapplicableitem.

DWATER.Fillfueltanksand sparefuel1

evelondipstickandfill tothecorrectlevel

elofthe coolantinfillerandobservefor con-

eeded.

ATION.Observeforsmoothidle,nostall-

eratetheengineandlistenforanyunusualnoise

gcharacteristicsinengineoraccessories.Note

ke.Investigateanydeficienciesobservedduring

S.Reportanyunusualperformanceob-

soonasthevehicleis stopped,observe

notover180 F)isnormal.Anincreaseabove

ccurwhenengineisstoppedor idling.

ressureshould be40poundsto45 pounds

nopressureindicatesdefect.Observeforstick-

terazeroor slightpositivechargeatidling

ssoriesoff.Highchargingrateindicatesprobable

.

forstickingorfluctuatingneedle,unusual

steratleastthe nominalbatteryrating.

, gagereadingshouldagree.Watchfor

tering.

allother instrumentsnotcoveredabove,

compass,tosee thattheyaresecure,notdam-

optheengineatthis time.

NDSHIELDWIPERS.Soundhorn.Observe

mentarilyandseethattheymakepropercon-

eratethroughtheirfullstroke.Seethatarms

rdamaged.Motormustbesecure.

EARVISIONMIRRORS.Wipecleanand

mage.Adjustrearviewmirror.


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







AFETYREFLECTORS.Mustbeclean

mpswitches.Alllampsmustlight whenon,not

toplightmust operatewhenbrakeisapplied.

ISHERS.Valvesmustbeclosed,nozzles

eyarefully chargedandthatthevalvesare

ATOR.Whenfurnished,checktoseethat

fully charged.NOTE:Itmustbereloaded

ntsdeteriorate.

DVOLTMETER.

that itissecure,clean,andnotdamaged

retight andnotcorroded;andthatcables

chafing.Wipeoff thefillerplugsandbe sure

dbethree-eighthinchabovethe cellplates.

tch.Itshouldindicateatleast nominalbattery

ttery.Addwaterso astomaintainlevel

ellplates.Ifpostsandterminalsare corroded,

ofgrease.Tightenterminaland batterycar-

rrierif corroded.

IESANDBELTS.

ndfanbeltstosee thattheyareingood con-

anbelttensionone-halfinchdeflection.

essorymountings,bolts,andlinecon-

.Examinebeltsforexcessivewearordeterio-

LWIRING.

singoodcondition,wellsupported,

cted.

g.Examineinsulationandshieldingfor

r.Reportunserviceablewiring.

ERSANDBREATHERCAPS.

incleanerbowlisat correctleveland

thatcleanerelementissufficientlylubricated.

emble,andclean.Refillreservoirtoproper

typebreatherinsamemanner.

RS.

odcondition,securelymountedandcon-


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






eareindicationsoffuelleaksat filtersorcon-

dsediment.

TROLS.Inspecttheengineandaccessory

e secure,notdamagedorexcessivelyworn,

ndareadequatelylubricated.

TRACKS.

ter,suchasnails,glass, orstonesfrom

s.Inspectfor signsofabnormaltreadwear,

n,positionofvalvestems,andpresenceof

ngvalvecaps.Tiresmaybemountedinthe

ntofthe"V" strikingthegroundfirst)when

red.Ifnecessarytochangea tire,itshould

resmustbe gagedandinflatedasnecessary

encold),atleastonceeachdaythat the

cttrackstoseethatthey areingoodcondi-

resecureandthat thetracktensionissatis-

ddedobjectsfrombetweentreads,tracks,and

ywornorotherwiseunserviceabletiresby

dindividual.Tightenallloosetrackconnec-

djusttracktocorrecttension.

NDSUSPENSIONS.

yaresecure,notdamaged,andincorrect

neasrequired.

NKAGE.Seethatit isingoodcondition,

lyworn;whetheritisadequatelylubricated;and

elubricantleaks.

SHAFTS.Removeanydirtor excessgrease

ntsandcheckfor looseconnections,lubri-

emoveanyforeignmaterialwrappedaround

RANSFERVENTS.

tionofmudor greaseandexamineto

ucted.

hlyofallobstructions.

ERAL.Lookunderthevehicleandunder

uel,oil, coolant,orbrakefluidleaks.


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







VELS.Examinetransmission,transfer,

seewhetherlubricantis uptoproperlevel,

wthe fillerholewhencold,tothe bottomedge

specifiedoilasrequired.Noteanyindication

DBUMPERS.Seethattheyaresecureand

NNECTIONS.

dloadissecurelyconnected;thatlocking

andthatelectricwiringconnectionsarein

e,andsafetyswitchproperlyattachedbetween

bricateasnecessary.

D,ANDTARPAULINS.Inspectbodyand

ad andtarpaulinsaresecurelyfastened.

FRONTROLLER.Inspectfordamage,

ountingbolts,screws,orrivets.Examinedoor

ds,compartmentdoors,andpeepholeand

ge;hinges,latches,andsupports,fordamage

diatorshutters,fordamageandproperopera-

oosebolts, nuts,orscrewssecurely.Lubri-

vicesasnecessary.Examinefrontrollerand

recoilspringsforloosenessor damage,and

ve.

G.

rim,sprocket,idler,bogieassembly,

ackle,andU-boltnutssecurely.

U-bolts,bumperassemblyandmounting

andidlerassemblybolts,andanyotheritems

experiencetoneedtighteningweekly.Pay

yarmorandassemblybolts.

TON.

einspectionrevealsadeficiencyinthis

ttings beforeapplyinglubricantandreport

s.

atethefollowingitemsandanyaddi-

nceindicatesshouldbelubricatedeachweek;

,carburetorcontrollinkage,cabandbody


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






gesandfasteners,radiatorshuttersandlinkage,

dall controllinkagebeneaththevehicle.

NEANDVEHICLE.

ominsideofcabandbody andremove

omtheexteriorof thevehicleandengine.

neandenginecompartmentthoroughly.

frominandaround radiatorcoreairpassages.

ossible.Ifnotpossible,wipeoff thoroughly;

enoughtocreateashinethat maycausea

DEQUIPMENT.

andequipmentassigned,includingpioneer

evices,towropeorchain,sparewinchshear

agebucket,andtrouble lamp(ifsoequipped)

n,andproperlystored.Replenishthefirst-aid

hervehiclemaintenancemanuals,partslists,

ndStandardFormNo.26(accidentreport

etheranyspecialequipmentisin serviceable

ached.Replacemissingordamageditems.

klyserviceinconjunctionwiththisafteropera-

and performitwhendoingtheweeklyservice.

ertoolstoseethat theyareingoodcon-

ed;seethatothervehicletools,tractionde-

parewinchshearpins,fuel cannozzle,bucket,

p(if soequipped)arepresent,clean,andin

reextinguisher,decontaminator,andfirst-aid

necessary.Seethat vehiclemaintenance

andardFormNo.26 (accidentreportform)

pecialequipment,suchasgun tripods,isin

securelyattached.Replaceanymissingitems.

EVENTIVEMAINTENANCEBASIC

ntenanceinspectionsandservicesarea

functionoftheusing arms,andaretherespon-

operatingorganizations.

uenciesofthepreventivemaintenance

econsideredaminimumrequirementfornor-

.Underunusualoperatingconditionssuchasex-

yorsandyterrain,itmaybe necessarytoper-

eservicesmorefrequently.


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







CIPATION.Thedriversshouldaccompany

emechanicswhileperiodicsecondechelonpre-

vicesareperformed.Ordinarily,thedriver

fora scheduledpreventivemaintenanceserv-

ondition;thatis, itshouldbedry andnotcaked

hanextentthatinspectionandservicingwill

owever,thevehicleshouldnotbewashedor

ncecertaintypesofdefects,suchascracks,

parts orassembliesaremoreevidentifthe

ordusty.

n thosecontainedinthegeneralproce-

hespecificproceduresinparagraph20which

correctperformanceofapreventivemainte-

tionofadeficiency,othersectionsofthe

pertainingtotheiteminvolved,ora desig-

ty,shouldbeconsulted.

ENERALPROCEDURES.

esarebasicinstructionswhicharetobe

gtheservicesontheitemslistedin thespecific

condechelonpersonnelmustbethoroughly

ssothat theywillapplythemautomatically.

edsubassembliesareinstalledto correct

betakentoseethattheyare clean,correctly

ted,andadjusted.

ricantretainerseals,a coatingofthe

overthesealing;surfaceofthelip oftheseal.

therseal,itshould besoakedinOIL,engine,

le),foratleast 30minutes.Then,theleather

ullybyhandbeforeinstalling theseal.Thelip

arred.

eseareindicatedbyrepeatingtheitem

hichshowtheintervalat whichtheservicesare

thatthe partsorassembliesareto receivecer-

Forexample,anitemnumberinoneor bothcol-

proceduremeansthattheactualtightening

ormed.Thespecialservicesinclude:

aryadjustmentsinaccordancewiththe

hicleoperator'smanual,specialbulletins,or


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






e vehiclewithsolventtoremoveexcess

reignmaterial.Aftertheparts arecleaned,

nddrythemthoroughly.Takecaretokeepthe

led,andbecertainto keepcleaningfluidaway

ialwhichit willdamage.Cleantheprotective

artssincethismaterialis notagoodlubricant.

isapplieseithertolubricationoperations

vehiclelubricationchartandtoitemsthat do

shouldbe performedinconnectionwiththe

fpartshavetobedisassembledforinspection

nsistsofperformingspecialoperations,

rywater,drainingandrefillingunits withoil,

artridge.

operationsshouldbeperformedwithsuf-

ceonthewrenchhandle)totightenthe unit

nicalpractice.Usetorque-indicatingwrench

ertighten,asthismaystrip threadsorcause

alwaysbeunderstoodtoincludethecorrect

s,locknuts,andcotterpinsprovidedto secure

itdifficulttoperformthe completepre-

ceduresatonetime,they cansometimesbe

ngtocompletealloperationswithinthe week

eat haltsandinbivouacareasmustbe

surethatmaintenanceoperationsarecom-

etacticalsituation,itemswithspecialservices

ven firstconsideration.

eventivemaintenanceproceduresthat

oseoutlinedonWD A.G.O.FormNo.461,

intenanceServiceWorkSheetforWheeledand

initemsontheworksheetthatdonot applyto

din theproceduresinthismanual.Ingeneral,

fitemsontheworksheet isfollowedinthe

someinstancesthereisdeviationfor conser-

meandeffort.

00-MILE(MONTHLY)AND6,000-

NANCESERVICE.

eproceduresforperformingeachitem

y)and6,000-mile(6-month)maintenance


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







nthefollowingchart.Eachpageofthe chart

edgecorrespondingtothe6,000-mileandthe

espectively.Veryoftenitwillbe foundthata

notapplytobothscheduledmaintenances.

hproceduretofollow,lookdownthe column

tenancedue,andwhereveranitemnumber

ationsindicatedoppositethenumber.

tuationdoesnotpermita full

emswhichrequirelittle orno

Whenaroadtestis possible,it

nd notover10miles.

VICE.Performthebeforeoperation

agraph14,asa checktodetermine

satisfactoryconditiontomakethe

ES.

angeis 40to45poundswith

glight mayflickeratidlebut must

ginespeed.CAUTION:Whengage

eroor excessivelylowpressure,

ndinvestigate.

dshowhighchargeforashorttime

rnto slightlyabovezerowithall

soriesswitchedoff.Whenbatteryis

eindicatedand foralongerperiod

andTachometer.Speedometer

ratewithoutexcessivefluctuation,

termustregistertheaccumulating

exceed180F.Warninglightin-

ratureof225Forover.

ectorswitchin bothpositions,

sapproximateamountoffuel in

DSHIELDWIPERS.Whentactical

horn.Aim,clean,andsecurerear

ndshieldwipers.Tighten,adjust

ffaulty.


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






DTRAILER).Makefirstbrakecheck

ngroadtest.Continuetests as

muststopthevehiclesafelyat

nabledistance;mustoperatewith

epedalmusthavemoderatebutnot

ontbrakesmustnotpull theve-

anyobjectionablenoiseorchatter.

eendof thestopshouldbe1 inch

stholdvehicleeffectivelyon

velshouldbe reserve.

ntrollerforgoodcondition,se-

htconnections.Testforquickap-

railerconnected.Applytrailer

ornormaleffectiveness,objection-

equalbrakeaction.Stopvehicle

yswitchwill operateproperlyto

g,dragging,chatterornoisethat

stment,defectiveclutchparts,or

shouldhavefreetravelof 13Ato

sistance.Whilerunningatlow

sacceleratorfully,atsame time

ndobserveifclutchappearstoslip.

NSFER.Withvehicleinmotion,shift

geof transmissionandtransferand

moperatesfreelywithoutclashing

atdeclutchingmechanismoperates

nyunusualvibrationsthatmight

andwhetherthereisanyunusual

einmotion,movesteeringwheel

observewhetherthere isanyindi-

ng.Testfor anytendencytowan-

sidewhilevehicleisoperatedat

olumnandsteeringwheelmustbe

re.


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







noteanytendencyoftheengine

oshift gears.Withthevehicle

renginewillrunsmoothlyatnormal

oise.Observeifenginehas nor-

power,andoperatingcharacteristics

gthroughthe gearrangefromfirst

ervationin tlighgearfromlow

ttle.Duringthis operation,note

uchasexcessive"ping"whichmay

low octanefuel.Listenforother

damaged,excessivelyworn,orin-

ginepartsoraccessories,orloose

hicleinsecondgear,slowlyde-

e-boardandbyobservingspeed-

clereaches,butdoesnotexceed,

fiedonthecautionplate.Check

ethatenginespeeddoesnot exceed

erminute.

rtforanyunusualnoisethatmay

ge,excessivewearinbody,wheels,

blies,attachments,andequipment.

ION—HYDROVAC.Testbrakesto

werunitassistsinapplication.A

e,withenginerunning,andlisten

drovacunitair cleaner,whilethe

ted.

mpletingroadtestrun:

elallbrakedrums andwheel

maltemperatures.Anoverheated

anindicationofadraggingbrake,

operlyadjustedwheelbearing;an

misanindicationofan inopera-

Transfer.Cautiouslyfeelaxledif-

nsmission,andtransfercasefor


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






seisexcessivelyhot,forthe dis-

malconditionintheunitis indicated.

ecompartmentandundervehicle

ater,andbrakefluid leaks.Trace

orrector reportthem.'

KS.Examinedrivingaxles,trans-

bricantlevelandleaks.NOTE:

mtheloweredgeofthe fillerhole

belowwhencold.Whenorganiza-

icateachangeofoilin theseunits

smission,transfercase,andfront

drefill withspecifiedlubricant.

NS

SAFELY

eenginerunning:

ories,Accelerateanddecelerate

stenforunusualnoisethatmight

orexcessivelywornengineparts,

Locateandcorrectorreportany

dduringroadtest.

ropellerShaftsandU-joints,

.Withtransmissioninintermediate

esengaged,operatetheseunitsat

dbyuseofthehandthrottle,and test

might indicatedamaged,loose,or

s.Alsoobserveallpropellershafts

ndvibrationsin theotherunits

nessorunbalance.Locate,correct,

uring roadtest.

ES

SKET.Checkforcracksorindica-

pressionleaksaroundstuds,cap

TION:Cylinderheadsshouldnot

essthereis definiteindicationof

tvalvestemclearanceifvalves

ust,0.018inch.Leakingcovergas-


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







ockerarms,shafts,springs,and

,correctlyassembled,secure,and

tomechanism.Adjustvalve-stem-to-

018inch,makingsure locknuts

esarelastcheckedduringadjust-

examineinsulatorstoseeifthey

odesto0.028inch.Testcompression

compression.Compressionatnor-

dnotvarymorethan10 to15

s.

DOWNS,CARRIER,SPECIFICGRAV-

eananddryexterior,cables,and

ls.Tightenhold-downbolts.Test

275);reportreadingof1.225or

eltoone-halfinchaboveplates.

ischargetestof thebattery.

ingbetweencellsis morethan30

ankcase,valvecovers,timinggear

foroilleaks,andcheckoil level.

lubricationrecordsindicatean

ankcaseandrefilltoproperlevel

art engineagainuntilitem24 is

NDLINES..Inspectforleakage,loose

ntings.

.Cleanoilfiltercase,installnew

ERS,MOUNTINGS,HOSE,CAPAND

K).Observeforlooseness,damage,

tforcontamination.Cleandirt,in-

riorofcore.

used,checkprotectivevaluefor

d.

ngsandhose.


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






SHROUD.Observewaterpumpfor

y andloosebearings.Inspectfan

age.

NDSWITCH.Examinemountings,wir-

kageandretractingspringforgood

oncoversandinspecttosee that

sareingoodconditionandnot ex-

esarefreeinholders,and brush-

reandnotchafing.Dirtycommuta-

ndpaper(No.00) accordingto

(par.87 hand88b). Blowout

air.Tightenstartingmotormount-

YS.Checkfandrivebeltsforgood

ysandhubsforgood conditionand

eltstoone-halfinchdeflection.

ADAPTER.Seethattheyarein good

mbled,andsecure,andthatflexible

ributorand externalattachments

ditionandsecurity.

movecapandexaminecap,

semblypartsforgood condition,

y,andserviceability.Inspectfor

,corrosionof terminalsandcon-

eouterends ofconductorstrap.

ood condition,alined,andad-

h gap.Replaceifburned,pitted,

semblyisexcessivelywornor

cleaninsolvent,drywithcom-

ecifiedbelow,andreinstallin

leaning,removethewickand

eremovedandreinstallonlyafter

anedanddried.Lubricatecamsur-

mpin,wick,andcamshaftwithlight

pto 0.018to0.024inch.

ss.Testcentrifugaladvanceto


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







canberotatedbyfinger force

ovementpermittedbycentrifugal

returnswhenreleased,withoutbind-

tcoilforgoodcondition,cleanli-

ethatall highvoltageignitionwir-

onduitsarein goodconditionand

pportmountingsandterminals.See

tionsareclean.Inspectalllow

ecompartmentinthe samemanner.

eandexhaustmanifoldforgood

dmanifoldgasketsforleaks.

buretoraircleanerforgoodcondi-

.Observeconditionofthecleaning

s.Cleanelementandfillreservoir

edoil.

NTILATORS.Inspecttoseethatthey

ectlyassembled,secure,andthat

Removetheelements,andclean

olvent.Dip elementinengineoil.

ylinderheadbreatherin thesame

ROTTLE,LINKAGE,ANDGOVERNOR).

ingoodcondition,correctlyas-

carburetordoesnotleak,andthat

perlysealed.

nspectfuelfilter,sedimentbowl,

,toseethatthey areingoodcondi-

ng.Removefilterbowlandelement,

descreenorfilter elementatcar-

norfuelpump.Reinstall,using

bling,recheckforleaks.

ndvacuumpumpforgoodcondi-

ttachtestgage,andwiththe engine

mppressureandvacuumare

bservingwhethergeneralactionof

ory,particularlywhetheritengages


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





withoutexcessivenoiseandhasade-

dwhetherenginestartsreadily.

ompartmentandunderthevehicle

uid,and waterleaks.

enginerunning,andthe neon

tignitiontimingcorrectly.Observe

olsadvancetimingasengineisaccel-

MTEST.Connectavacuumgage

enginetoits normalidlespeedby

w,thenadjustthe idlemixture

uumgageindicatesmaximumread-

ntchangesidlespeedappreciably,

reuntil botharesatisfactory.

eifiti singoodconditionandif

gsaresecure.Connectlowvoltage

geregulator,currentregulatorand

oroutputcontrol.Followthein-

anythetestinstrument.

TACHMENTS

sfollows:

pectvalvestemsforgoodcondi-

ndthatall valvecapsarepresent

.Inspecttiresforcuts,bruises,

lartreadwear,watchingforany

featheredges,andone-sidedwear.

cescausingsuchconditionsshould

tedorreported.Removeembedded

ewheelpositionsof tireswithirreg-

ed,fronttires torear-wheelposi-

nondirectionaltiresshouldnot

e.Directionaltireson front

dsothat"V"of chevronpoints

operlyinflated,inspectfor

er-allcircumference,1V2inchvaria-


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






tsparetirecarriersfor good

rims andtheirlockringsor

onandsecure.Tightensecurely.

EADWEAR).Inspecttrackstosee

ditionandinproperpositionon

guidesareall present,notexces-

enutsare secure.Removestones

betweenthetracksandrollers or

ystem.•

withatorque-indicatingwrench

ARINGS,ANDSEALS).Inspect

oodcondition,security,andforoil

cleanthesprockethubs,bearings,

s,balls,races,and cagestoseethat

Lubricatethemcorrectly,using

til adragisfelt; thenbackoffone-

mblingthesprocket,tightenallhub

andjackshaftflangenutssecurely.

ndserviceasfollows:

ovedirtandgreaseandinspect

ondition,securelymounted,and

ored.

eiftheyareingood condition,

tleaking.Tightenthebrakesup-

oltssecurely.

INGS,LINKS,GUIDES,ANDANPHORS).

ows:

sthroughinspectionholesor

rsupports toseewhethertheyare

vetheadsmayscoredrumswithin

on.Iflinings arenotvisible,remove

orinspectionofbrakeliningsby

newhethertheyshouldbereplaced.

kemustbereplaced,removeall


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





akessimilarly,beingsureto clean,

movedbearingsandto adjustbrakes.

keliningsshould bemadeifvehicle

dindeepwater,mud,or loosesand

eredbrakedrum.

tliningsare ingoodcondition,

ontactwithdrums,freeoflubricant

cessivelyworn.Alsoseethatbrake

n;properlysecuredandguidedby

nks,guidesandsprings;andprop-

camsor stopsbytheretracting

elinings withawirebrush,clean

Aftercompletion,adjustbrakeshoes

ods,sothatliningshaveproper

ms.Wherenewliningshavebeen

hemajoradjustmentmethod.

EARINGS).Examineidlerwheelsand

,security,andindicationsofoil

eanthetheidlerhubs,bearings,

ers,balls,races,cages,andseals

kidlerbearingsastheyarereassem-

erly,andapplyadditionallubri-

untilfull.Tighten flangessecurely.

S,SHAFTS,ADJUSTINGRODS,AND

oodcondition,correctassembly,

dflangenuts securelywhenre-

OSSTUBE.Examineforcondition

ingboltnutssecurely.

,SPRINGSANDBLOCKS,GUIDESAND

TS.Examineforgoodcondition,secur-

xaminespringsforgoodcondition

g blocks,andseethattheyhave

.If twoormorecoilsarerested

rings havetakenpermanentsetand


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






ANDLOWER,TIRES,BEARINGS,

mineupperrollersandbrackets,and

goodcondition,correctalinement

eethattiresare secureonlower

yworn.Payparticularattentionto

etires,andalsothat lubricantis

omtheseals.

nbogielowerrollers,bearings,and

,balls,races,andcagesforgood

gswithlubricant.Applyadditional

nguntilentirehub isfilled.

UND).Adjusttracktensionbybring-

pressedlengthof 13Viinches.

UPPORTS,ANDCYLINDERS).Inspect

ovedirtandgreaseandexam-

goodcondition,securemounting,

g.

eforgoodconditionandsecure

Tightenbrakesupportanddrum

Examinebackingplateforalinement

NINGS,LINKS,GUIDES,ANDAN-

ceasfollows:

hroughinspectionholesoropen-

pportstoseewhethertheyareso

theadsmayscoredrumswithin

on.Iflinings arenotvisiblein this

rearhuband drumforinspection

ficeror motorsergeanttodeter-

oworn thattheyshouldbere-

heelbrakemustbereplaced,re-

dservicetheirbrakessimilarly,

te,andadjustall removedbear-

A similarinspectionofthebrake

vehiclehasrecentlybeenoperated

esand ordirtwhichmayhaveen-


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






ningsarein goodcondition,

oes,ingood wearingcontactwith

tor brakefluid,andnotexcessively

atbrakeshoesare ingoodcondi-

guidedbyanchorbolts,connect-

s;and properlyreturnedagainst

gsprings.Cleanall dustfromlinings

th,or compressedair.

nspectionsofallfollowingitems

avebeen completed,adjustbrake

tmethod,sothatlinings haveproper

ms.Wherenewliningshavebeen

majoradjustmentmethod.

NTS,BEARINGS,SEALS,ANDBOOTS.)

ows:Examineknucklehousingsand

dition;observewhetheroutsideseals

dconditionandsecure.Obtainasam-

chknuckle;inspectit forcontami-

eanthesteeringknuckleanddrive

bservewhetherdisassembledknuckle

condition,particularlyU-jointwash-

plines,seals andboots,andpivot

eknucklepivotbearingsand drive

bricateandadjustthepivotbearing

nsinparagraph48,30 to35pounds

heunits,besure toinstallanyre-

nerseals,boots,andgaskets.

EAVES,U-BOLTS,HANGERS,AND

eethattheyareingood condition,

secure,andwhetherspringshaveex-

tssecurely.

D,DRAGLINK,SEALSANDBOOTS,

LUMN,ANDWHEEL).Examinetosee

odcondition,correctlyandsecurely

andwhethersteeringgearcaselubri-

andnotleaking.Noteif steering

ustment.

rmshaftnutandsteering gear


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







ingnutsorscrewssecurely.

eringcolumnbracketwhentight-

ountingnuts,soas nottodistortthe

SANDLINKS.Examineshockabsorber

ondition,security,andfluid leaks.

erbodieswithspecifiedfluid.

sandadd fluid.Repeatthisopera-

andthereservoiris full.Disconnect

hattheactionisnormal.A double-

uldhaveresistanceinbothdirections.

S,SEALS,FLANGE,AXLEENDPLAY,

ervicetheseitemsasfollows:

twheelsare ingoodcondition;re-

theyhaveexcessiverun-out.

utremovingfrontwheels,exam-

essinwheelbearing oradjustment.

stenforindicationsofdry ordam-

ectdriveflangesandaroundbrake

ricantor brakefluidleaks.

ecktoseethat theyareingood

eservice,ifvehiclehasrecently

erwhichmayhaveenteredwheel

eeltoseewhetherbearing'slubricant

ed.Cleanandlubricatebearingsof

foreitis reinstalled.Whensuch

nglubricantaremade,alsoinspect

hethertheyareexcessivelyworn.

earingsandoilseals.Cleanthor-

ers,balls,races,andcagesto see

dition,andthatthecupsaresecure.

machinedsurfacesuponwhich

darein goodcondition.Whenbear-

atethewheelbearingsandadjust

koffone-eighthturn.

DPLAY,SEAL,VENT,ANDALINE-

stobe outofline,measurethe


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






eyebolttocenterof axlespring

nceshouldbe aboutthesameon

atthe axlehousingisingood con-

minepinionshaftfor excessive

s.Whentheaxlehousingventis

tandcleanthoroughly.

T(JOINTSANDALINEMENT,SEALS

orgoodcondition,correctandsecure

inspectU-jointsforproperaline-

slipjointshouldbe free,notexces-

ated;andsealsofU-joints andslip

sively.

assemblyandcompanionflange

dStrap,andSidePans.Inspect

dconditionandsecurelymounted

ntingboltsareloose,tightenthem

greasefromrubber mountings.

ANDPAWL,LINKAGE,DRUMORDISK,

eethathandbrakeratchetand pawl

onandsecure;that brakediskis

brakeliningisnotoil-soaked,

cebetweenthebrakediskand

AVEL,LINKAGE,ANDRETURN

hatthepedalfree travelissatisfac-

tthepedalissecurelymounted,

nkageisin goodcondition,secure,

lfreetravelaccordingtofollow-

hto2inches.

R(VENT,FLUIDLEVEL,LEAKS,AND

hattheyarein goodconditionand

properlyinstalled;seewhether

ffluidl eaks.

nderreservoirtothe correct

yone-quarterinchforexpansion.


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







OVAC(LINKAGE,AIRCLEANERHOSE,

specttoseethattheyarein good

mbledandmounted,andthattheoper-

oesnotbind; seewhetherbrake

avecylinder.Cleanandoiltheair

tafewdropsoflight oilinto

G,SEALS,POWERTAKE-OFF,AND

issioncaseforgoodcondition,oil

ets,andseethat controllinkageis

yconnected,andsecure.

missionandpowertake-offmount-

boltsandcapscrewssecurely.

LINKAGE,SEALS,ANDVENT).In-

dconditionandsecurityofmount-

eaks.Be suretransfercaseventis

ngsandexternalassemblynutsor

.Inspectinthesamemanneras

tandcompanionflangebolts

PLAY,SEALS,VENTS,ANDALINE-

cleanventitemsin thesameman-

toseethat allmountingbracketsand

ensecurely.CAUTION:Ifbody

osen thesteeringcolumnbracket

SMEMBERS).Inspecttoseethat

secure,andcorrectlyalined.

GROMMETS.Examinetheseitems

seethattheyare ingoodcondition,

ected,andsecure.

NDLINES.Examinefueltanksfor


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






ty.Inspectcapsfordefectivegas-

thatfiller necksandcapsfitse-

ndfittingsfor goodcondition,secur-

NDHOSE).Lookunderneathvehicle

seethattheyarein goodcondi-

theyleak.

FLER.Examineexhaustpipetosee

dtotheexhaustmanifoldandmuffler,

gleaks,andthatmufflerisi ngood

ounted.Examinetailpipetosee

dtothemuffler,properlysupported

erend.

heckthelubricationoftheentire

edisassemblywasnecessaryforin-

ationmustbeperformedunlessthe

or repairofthatunit.Lubricate

n mountsinaccordancewithin-

ntenancemanual,lubricationguide,

letinsordirectives,andthefollow-

leanlubricantandkeepall lubri-

Onallunsealedbushingsorjoints

plieduntil itappearsattheopen-

hlubricantretainerseals,do not

theseals.

ne,transmission,transfercase,

m.Refillunitsto thecorrectlevel

ompleted,sotherewillbe little

peratedwithoutlubricant.Thecor-

es,transfercase,andtransmission

rsideofthefiller-plughole.Do not

amountoflubricanttogenerators,

aterpump.Todoso maycausea

bricantthatmaydriponto brakesor

ordetractfromthe vehicle'sap-

bliesthathavealreadybeenlubri-

forinspection,gearcasesthathave

smandatoryitemsin thepro-

hathavebeenindicatedin the


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






ricationmaybeomittedfromthe

ehicle.

UND

OPS.Withthefrontwheelsonthe

osition,andusingaproper toe-in

eltoe-inis withinspecifiedlimits,

ewheelturningstopsare present

dnotbroken.Turnthe frontwheels

hattheyengagethestopsandi fthe

ehicleinthis position.Ifthereis

angleexceedsthespecifiedlimits,

ainstvehicle,or abnormalfront-

orcheckofturningangle byhigher

DRIVE,SHEARPIN,CABLE,AND

condition,correctassembly,and

ovesfreelyandlatchessecurely,

sin goodcondition,secure,and

tautomaticbraketoseethatlining

worn.Checkthepropellershaftin

m62;seethatthe propershearpin

ndition.Checkcableguidesfor

ty.Alsoseethattheoil levelinthe

Ifleveli shigh,removethedrain

erorexcesslubricanttoproper

clutch,shaft,andoperatingarm

utchbackandforth severaltimes

anttobesure itisfree.Unwind

kenor frayedstrandsandforflat

entirelengthofthecable witha

ureofone partengineoilandfour

cess,andascableis properlyre-

ha thinfilmofgreaseor gearoil.

ted.Draintheworm-gearcaseand

LERBRAKEWIRINGANDCONNEC-

ingtoseethatit isingoodcondi-


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





.Seethatconnectingfittingsarein

ndnotexcessivelyworn.Inspectlight

.

P,ANDBLACKOUT).Testtoseethat

teproperly;besuretoincludethe

otswitchcontrolsheadlampbeams

adjusted.Inspectalllamps for

ty,andcheckfordirtyandbroken

tors.

eams.

RS,TowHOOKS,BRUSHGUARDS,

oseethattheyarein goodcondition

rturns andisproperlylubricated,

ackets,andthatbracketsareingood

ENERS).Seethatthehood,hinges,

good condition,secure,andprop-

NNINGBOARDS.Seethattheyare

re.

S,TROOPSEATS,ANDSTOWAGE

ttheseitemstoseethat theyare

re,andthatthe tarpaulinandend

s,grommets,andmetalhooksor

resentandsecure;seethat alldoor,

ompartmentdoorhingesandlatches

.

ASHGUARDS.Seethattheyare in

e.

TLEHOOK(LATCH,LOCKPIN,AND

re ingoodconditionandsecure,

perateproperlyandareadequately

nissecuredwitha chain.

WL,DOORS,WINDSHIELD,ANDPORT

odconditionandsecurity,including

ers,hinges,andfasteners.Note

ersareadequatelylubricated.


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






aminepaintofentirevehiclefor

rightspotsinfinishthat mightcause

tidentificationplatesandvehicle

ESSORS,FILTERS,CONDENSERS,AND

seitemstoseeiftheir bondingcon-

tion,clean,andsecure,andwhether

nted.NOTE:Anyirregularities,

ening,shouldbereportedthrough

ersonnel.

TS,RAILS,SPAREPARTS,ANDCOV-

ingsandrailsforgoodcondition,

ubrication.NOTE:Referall

unparts andcoversthroughchan-

commanderforallinspectionsand

NEER).Checkallthestandard

gainstthestowageliststo seethat

odcondition,clean,andproperly

ed.Anytoolsmountedontheout-

brightor polishedsurfacesshould

atedsoas not"tocauseglareor

ecttoseethatitis fullycharged,

ymounted,andthenozzleclean.

tbecheckedforfullchargeby

ctforgoodcondition,security,and

tsofdecontaminatormustbere-

deteriorates.Refertotagfordate

goodconditionandpresenceof

iesimmediately.

No.26.Thevehicleandequip-

andpartslists,checkchartlubrica-


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





ccidentFormNo.26shouldbe

erlystowed.

ANSANDBANDTRACKAPPLIER).

ctorlinksforgoodcondition,clean-

otectionagainstrust,andproper

PE,ANDBLOCK).Seethatprovided

condition,clean,andproperly

lesshouldbeproperlyprotected

se.Ifsnatchblocksarefurnished,

y.

S,ANDBULBS.Seethatprescribed

ent,in goodcondition,andproperly

NDBRACKETS.Seethattheyarein

e,andthatcapsfittightly andare

;examinecansfor leaks.

RVICEMODIFICATIONWORKOR-

organizationalvehiclerecords

hiefofsectionor otherdesignated

allFieldServiceModificationWork

hiclehavebeencompleted.

nalroadtest,recheckingitems2

recheckthetransmission,transfer

o seethatlubricantisat thecor-

Confineroadtest tominimumdis-

satisfactoryobservations.Corrector

dduringfinalroadtest.


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






r lubricatedbyordnance

3

alpartof preventivemaintenance,deter-

heserviceabilityofpartsandassemblies.

figs.24and25).

tructionsforthismaterielareconsoli-

e(figs. 24and25).Thesespecifythepoints

sof lubrication,andthelubricanttobeused.

theguide,othersmall movingparts,such

stbelubricatedat frequentintervals.

maynotbe possibletosupplyacom-

antscalledforbythe lubricationguidetomeet

willbenecessarytomakethebestuse ofthose

ctionbytheofficerconcerned,inconsultation

epersonnel.

ollowingnotesapplytothelubrication

notereferencesintheguidecorrespondto

orrespondingnumber:

eapplyinglubricant.Lubricateuntilnew

ebearing,unlessotherwisespecified.CAU-

ndsuspensionpointsafterwashingvehicle.

ndicatedarefornormalservice.Forex-

,heat,water,sandandmud(splashor submer-

ust,etc.,reduceintervalbyone-halforlubricate

rant.

.XVII).Daily,checklevelandrefill

withusedcrankcaseoilorOIL,engine(crank-


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





,000miles,dependingonoperatingconditions,

ry2,000miles,alsoremoveair cleanerand

Cleaner(sec.XIII).Every3months,

eraircleaner,washhair,andoilwithused

e(crankcasegrade).

er.Weekly,drain,clean,andrefilloilreser-

ilorOIL,engine(crankcasegrade).Every3

lement.

ywhenengineishot.Refillto "FULL"

fill).Runengineafewminutesandrecheck

epressuregageindicatesoilis circulating.

ersare ofcartridgetypeandtheunit

n theleft-handside.Every2,000miles,or

ary,removethecartridgesorfilterelements

dliftingout thecartridges(fig.26).Drain

sitswhenreplacingcartridges.Frequencyof

ndsontheoilusedand onoperatingandatmos-

inspectionoftheoilon thebayonetgagewill

nthecartridgeshavebecomeloadedandshould

ckcolor).Checktheoillevelafter running

nd addoil,ifnecessary,tobringthe oillevel

attempttoclean orreinstalloldcartridges

checklevelwithvehicleonlevelground

canttothecorrectlevel;also makevisual

eakageisfound,reportto ordnancemaintenance

drefillatthe endofthefirst 1,000miles;

pointsonguide.Whendraining,drain imme-

NGS(sec.XXVI).Removewheel,clean

packbearingsproperly,removethehubcap

s.Thenremovedrive shaftflangeandbearing

milesremovebearings,wash,dry,andrepack

pose,No.2(WB).Replacebearings,tighten

sseatthemselvesandwheelbegins tobind

koffnutone-eighthturn untilwheelturns

ckadjustingnutinposition withlockwasher.

ONTWHEELS).Withvehicleonlevel

npluginfrontofjoint andfillthroughfittingat

ntcomesout ofinspectionhole.Every6,000


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






RRIAGEMl4,ANDSIMILAR IHCVEHICLES)

ntsonBOTH

OPPOSITESIDE•.«

SkirtArrowt.

G 1

ove)WBS

)OES

dbearing

ble)

OOD|—

p.)

g

cle)

p)

te13)

arcate

ng(Sparingly)

plug)

ase 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





LUBRICANTSTOBE USED

|0+10F+10Fto -10FIBelow-10F

rings

sionSystemPoints

pose

ormal

tionsof

d

ow,

ucein*

ate

rant.


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







dge— Installation

REvery5,000miles,removeplugatfront

nterofcylinderandinjectabout1teaspoonful

ach.

NDSLIPJOINTS.Removeplugandinsert

ON:Donotoverlubricatetheuniversaljoints

th reliefvalves.

NGEARCASE.Every5,000miles,remove

ubricatewithGREASE,generalpurpose,

0miles,removestarterandlubricate

withOIL,engine(crankcasegrade).

1,000miles,wipedistributorbreakercam

ralpurpose(seasonalgrade),andlubricate

,engine(crankcasegrade),sparingly.Fill

generalpurpose,No.2(WB)andgive one

ARINGS(sec.XXVI).Every5,000miles

cketflanges,andbearinghubs.Thenremove,


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





s.Torepackbearingsproperly,removedriving

nremoveflangeandaxle.Removelocknut,

s.Washbearings,dry,andrepackwith

,No.2(WB).Replacebearings;tightenad-

gsuntilthesprocketturnshardwhilerotating.

ntilwheelturnsfreelywithoutend play.

nplacewiththe lockwasher.

ry1,000miles,lubricatethrottleconnec-

e,parkingbrakelinkage,bumperrollerslides

clutchclevisesandpins, andpintlewith

ade).

oLUBRICATIONSERVICE.Springs,shock

erbearings(ifso equipped),clutchpilot

ewheelsuspensionlinkage,andslides,require

TE:Frictionandvibrationtendtodevelop

erfittingofrubberchassisparts,instrumentpanel

mounts.Lubricantssuchasmineraloil,castoroil,

smust notbeusedbyreason oftheirtending

Asuitablelubricatingmaterialcanbe made

ewithETHYLENEGLYCOLorglycerine

opreventrapiddrying beforethesolution

oncanbeappliedwithan ordinaryspray,but

dedtoforcethelubricantbetweenpartshaving

artswhichareusedtokeepotherparts from

not belubricated.

Ifthefluidbecomeslowdue toleakageor

thesystemanditwill benecessarytobleed

ovethisair,unscrewthe plugandfillthe supply

draulic.BleedtheHydrovacfirstandthen

InbleedingtheHydrovac,startat thebleeder

ylinderandbleedin 1,2,3ordertowardthe

Wheelcylindersmaythenbe bledinanycon-

derhosetobleederscrew.Runfreeendof

tlyfilledwithbrakefluid.Openbleedervalve

hwrenchprovidedandpump pedal,slowly

elcylinderintothe jar.Continuetopumpuntil

houtbubbles.The freeendofthebleeder

luid injarduringpumping,or airwillbe

der.Whenthefluidflowsclear,withoutbubbles,

vebleedertube,andreplacecapscrew.After

,donot depressbrakepedaluntilthevalveof


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







opened.Whenall wheelcylindershavebeen

toproperlevel withFLUID,brake,hydraulic.

EDAND/ORLUBRICATEDBY

EPERSONNEL.

dTachometerCable.Disconnectatthe

ercables.Coatshaftwith GREASE,graphited,

Wheneverthejointsaredisassembled,

EASE,generalpurpose,No.2.

yemployingtheequipmentprovidedwith

UBRICATION.SeesectionVIIforinforma-

e,andgearlubricantsforsubzerotemperatures.

rdoflubricationforeveryvehiclein its

personnelwillcheckatregularintervalsthe

whicheachvehiclereceivesprescribed


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





STOWAGEONTHEVEHICLE

dicatedhereinincludestoolsandequip-

ntenance,andpreservationfortheHalf-track

-trackCarM9A1,andMultipleGunMotor

quipmentshouldnotbeused forpurposes

ndwhennot inuseshouldbe stowedintheir

esprovided.

nualsdescribingdrivers'operationsand

easwellasPartsCatalogsareshippedwiththe

.Thesepublicationsareapart oftheequip-

anythevehicleatalltimes,or beavailable

dtransferredwiththevehicle.Completefamil-

sepublicationsisnecessaryfortheproper

nofdriversandmechanics.TechnicalManuals

ureListspreparedbytheWarDepartment

themanufacturers'manualsaccordingtoWar

s.

toolsareforthe Half-trackPersonnel

WHERECARRIED

ing,

ell

ve,

pe,11""

peen,


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








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





STOWAGEONTHEVEHICLE

R

pment

CARRIED

ut

e1

oint,

ble,

r-

d,

d,


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








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





TOWAGEONTHEVEHICLE


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








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





TOWAGEONTHEVEHICLE


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







d,

d,

18-in.1

q-drive,

bearing

tudnut1.

5-lb)1

aw1

ndle),

4Vi-ft

toolsareforthe Half-trackCarM9A1.

ing,

ve,

pe

peen,

ut

e


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





STOWAGEONTHEVEHICLE

WHERECARRIED

Centerfloorwell

oint,

ble,

6-in.

8-in.

rpose,

d,

d,

d,

d,

18-in.

q-drive,

bearing

tudnut

5-lb)

aw

t

ndle),

4V2-ft


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







partments— Open(MS)

toolsareforthe MultipleGunMotor

WHERECARRIED

rwell

ve,

raight3

0deg3

peen,


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





STOWAGEONTHEVEHICLE

partments— Closed(MS)

driving

e1

oint,

-in.sq-drive,

6-in.

CARRIED


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







8-in.

rpose,

.,

.,

.,

d.,

18-in.

sq-drive,

heel

eelbear-

5-lb)

t

ndle),

T.

esandequipmentcovertheHalf-track

SSORIESANDEQUIPMENT.

WHERECARRIED

ating,

tshutterhan-


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





STOWAGEONTHEVEHICLE

WHERECARRIED

ale)2Rearfloorwellinbag

e)

M1936

18-qt

5-ft

pand

s

ithbag)1pr. Rearfloorwell

Q.M.C.

Q.M.C.

5-ft

CO,)

kchain

-16V

nes

enades

l


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







negun,

50)

chinegun,

40)

strated

11A)

-ft

winch

n.

ehicle,

er,1-rear)3

flaps1

flaps1

2%6-in.

2%6-in.

-ft

PLETE.

T.

ver


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





STOWAGEONTHEVEHICLE

WHERECARRIED

45,or

acketsprovided

13men 78cansUnderleftrearseat

13 men4cans""""

esandequipmentcovertheHalf-track


ating,

n-

r

ale)

e)

M1936

18-qt

5-ft

pand

/bag)

Q.M.C.

Q.M.C.

CO2)

wl

t


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







partments— Open(MlA)

CARRIED

nt

nd

2-16V2

kchain


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





STOWAGEONTHEVEHICLE

WHERECARRIED

nes1Underleft rearseat

enades

negun,cal.

1"".""

chinegun,

40)1'"

ngmachine

)1 """

strated

11A)1

-ft.1

winch

in.4

30-ftroll1

ehicle,

r,1-front)3

flaps1

flaps1

2%6-in.

ront,

-ft1


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








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





STOWAGEONTHEVEHICLE

WHERECARRIED

PLETE.1Oncommander

T.

ver

45,or

10men 60cansUnderleftrearseats

10 men4cans""""

esandequipmentcovertheMultipleGun


asegun1Centerfloorwell

ating,

M19365

18-qt1

1

5-ft1

and

/bag)

Q.M.C.


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







CO2)

1

17-197)2

pe1

w/clamp1

2-16VB.C.2

kchain

ngmachine

-65)1

enades

chinegun,

40)1

strated

tipleGun

707)1

t,machine

M9-223) 1

-ft1

e1


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





STOWAGEONTHEVEHICLE

t

n.4

e,30-ftroll1

b1

PLETE.1

avy) 1

T.

edof:1

ritish

5men 60cansIncompartmentunder

5 men2cansIncompartmentunder

ARTS.

sparepartscovertheHalf-trackPersonnel

RTS.

1


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







WHERECARRIED

raight3Centerfloorwell

5deg3"""

driving

winch

e,30-ft

sparepartscovertheHalf-trackCar

RTS.

1

raight3

5deg3

driving

winchis

sparepartscovertheMultipleGun Motor

RTS.


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





STOWAGEONTHEVEHICLE

WHERECARRIED

and

Centerfloorwell

raight3""

0deg3

driving

acket

overtheHalf-trackPersonnelCarrier

ACHINEGUN.

3-in.

eats

61

rrel

overthe Half-trackCarM9A1.

ACHINEGUN.

3-in.

eats

61'"

rrel

ACHINEGUN.

1Under rightrearseats

overtheMultiple GunMotorCarriage

ACHINEGUN.

w,6-in.21 ineachMSchest

oint2"""


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







WHERECARRIED

oint21 ineachMSchest

3-in.

2

.,alloy-S.,

.,alloy-S.,

.,alloy-S.,

mentconsistingofammunition,arma-

efortheHalf-trackPersonnelCarrierMS.

nd

One250-roundbeltin box

ight rearseats

frontcenterseat

re),Ml2

ZE,

ADE

MlA226


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





STOWAGEONTHEVEHICLE

1919A4

5,

ovidedbehind

AL..30MACHINEGUN.

..301

unds16

g,M61

,M23

s)1

tents)1

1

er-all1

l

tridge,

..30or

21

z1

0.1

l..30,Ml1


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







ents)1

AL..45SUBMACHINEGUN.

g,M61

,M51

areparts,

chinegun1

ton,

p)or

p)18

chinegun1

ng)1


efortheHalf-trackCarM9A1.

ndTwo 250-roundbeltsin

twoboxesatrear inside

nd drumspacket

0-roundbeltin box


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





STOWAGEONTHEVEHICLE

re),Ml2

ZE,

eM6A32

1919A4

2,heavy

hine,

ast

0MACHINEGUN.

..30

unds

g,M6

,M2

s)

al..30or

contents)3

tents)1

..30

r

r


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







er-all

CARRIED

1

tridge

gun,

1

01

l..30,Ml1"'

ents)1"


g,M61Underleftrearseats

,MS1""""

areparts,

"

chinegun1

ton,

p)or

p)18

chinegun1

ng)1""""

AL..50MACHINEGUN.

Underrightrearseats

s


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





STOWAGEONTHEVEHICLE

,M44

50,M177

M11

..50

,45-in.1

1

l

tridge1

..30or

gun,

71

r


efortheMultipleGun MotorCarriageM14.

30,

-


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







CARRIED

m-

2,

hine,

t-


g,M61

MS1

areparts,

chinegun1

ton,

p) 24

chinegun1

ng)1

AL..50MACHINEGUN.

,M412

s)

50,M210

tents)2

1(w/o

ing,cal.

n2


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





STOWAGEONTHEVEHICLE

hinegun

on,M23

z2

02

72

/o

ents)2

partsare fortheHalf-trackPersonnel

L..30MACHINEGUN.

earing

earingplug1

f:1

1

641351

1

71

861

mbly,

41

1312651

of:1

1

bly,

up


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







WHERECARRIED

y,

472241

B175131

p,consist-

mbly,

y,

472301

stingof:1

9182

y,

bly,

1350571

2311

y


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





STOWAGEONTHEVEHICLE

WHERECARRIED

nderrightrear seats

'

rseats

L..45SUBMACHINEGUN.

erleft rearseats

nly)1""""

ly)1""""

A1'

"

9D1""""

partsare fortheHalf-trackCarM9A1.

L..30MACHINEGUN.

earing1Underright rearseats

earing

f:1""""

1

641351

1

71

861

mbly,

41

1312651


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







of:

1

bly,

91

y,

p,

mbly,

y,

472301

stingof:1

91821

y,

bly,

2311

CARRIED


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





STOWAGEONTHEVEHICLE

WHERECARRIED

rrightrear seats

y1

1

1

1

L..45SUBMACHINEGUN.

erleft rearseats

nly)1* ""

ly)1"""

A1""""

""

9D1""""

L..50MACHINEGUN.

errightrearseats

embly1""""

"""

pivot

"""


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







CARRIED

1

41

y,B89611

bly,

y,

93511

nger1

1

partsare fortheMultipleGunMotor

L..45SUBMACHINEGUN.

nly)1

nly)1

A.1

9D1


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





STOWAGEONTHEVEHICLE

L..50MACHINEGUN.

CARRIED

d2

embly4

dy2

y2

y2

embly4

y2

3/410

110

/4 6

8 4

dcollar 2

2

4


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







be

acket,

acket,

nger

ver,R.H.

slide

o,reg.%

o,reg.3/8


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




SUALCONDITIONS

s32

35

on36

7

ance38

quipment39

.

eequipmentatsubzerotemperatures

mandspecialprecautionsandextracareful

tionandmaintenancepersonnelifpoorper-

onalfailurearetobeavoided.Automotive

edefficientlyatlowtemperaturesifthiscare

xercisedwheneveravehicleorparts are

ntosubzerotemperaturesasmoisturewill

allsurfacesandfreeze.

vebeendividedinto2ranges:—10F to

ngine andlubricantsundergochangesin

—30F.Inmanycases,accessoriesandequip-

engine,fuel,and intakeairarerequired.

PERATURES,

eis designedtoreducecoldweather

orethewintergradeofmotorfuelsprocured

tion2-103,latestissue,mustbeused inthe

ING.Duetocondensationofmoisturein

ateintanks,drums,andcontainers.Atlow

willformicecrystalsthatwill clogfuellines

thefollowingprecautionsaretaken:


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






achamoisskinoranyother typeof

epassageof water.CAUTION:Gasoline

eratesstaticelectricitythatwillresultin a

ovidedtogroundthe electricity.Ametallic

ainerandthetankmustbeprovidedto assure

ble.Themorefuelthereis inthetank,

umeofairfromwhichthemoisturecanbe

nersarethoroughlycleanandfreefrom

them.

ormovingacontainer,allowthefuelto

cletankfromit.

ntainerstighttopreventsnow,ice,dirt,

omentering.

umsdry;allowaboutfour inchesoffuel

aturedalcoholto atankofgasolineto ab-

ondense.

ICLES.

veequipmentattemperaturesabove0F

outlinedinWarDepartmentLubrication

dServiceBulletins.Subzerotemperatures

ricants;therefore,specialattentionmustbe

ervicingofequipmentwhensuchtempera-

eofthefollowingmeasuresmustbetaken

lable:

enclosure,ifpossible,whenit isnotbe-

opped,drainthecrankcaseoilwhileitis

warmplaceuntil vehicleistobeoperated

otavailable,heattheoilbeforeputtingit in

theoil toohot.Heatonlyto apointwhere

rtedwithoutburning.)Placeatagina con-

o warnpersonnelthatthecrankcaseisempty.

tarpaulin.Aboutthreehoursbeforethe

acefirepotsunderthetarpaulin.A VanPrag,

sof blowtorchesorkerosenelanternsmay


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




SUALCONDITIONS

ationforfire hazardsinvolved,theflamemay

pan.

h gasoline.Thetablebelowshowsthe

addedtotheoilprescribed onthelubrication

hequantitiesofdiluentswill formmixtures

emperaturesindicated.

2qtof1qttoeach5qtof

s firstdiluted,turntheengineover

ddiluentthoroughly.

ly.

tsrecommendedforusein thisvehicle

willbefoundoutlinedin specialfieldservice

SB6-5.

ICLES.

ENEGLYCOLisprescribedasan

tructionsoutlinedinparagraph82 pertinent

thebrushesandcommutatorsareclean

par.88).

anall connections,especiallythebattery

akentomakecertainthat noshortcircuits

ionsare tight(par.85).

operfunctioning.Inspect,clean,replace

connectionsinhightensioncircuit (par.90).

stributorthoroughlyandcleanorre-

kthepointsfrequently.In coldweather,

eventthe enginefromstarting(par.91).

est,andreplaceif necessary.Ifitisdiffi-

re,reducethegapto 0.023inchto0.027inch.

eeffectiveatthe reducedvoltageslikelyto

y.Careshouldbetakenthat thespark

etarded (par.94).


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





ARRIAGEMM,ANDSIMILARIHCVEHICLES)

cyofabatterydecreasessharplywith

andbecomespracticallynilat minus40F.Do

withthebatterywhenit hasbeenchilledto

s30Funtilthe batteryhasbeenheated.See

ully chargedwiththehydrometerreadings

Afullychargedbatterywillnot freezeattem-

unteredeveninArcticclimates,buta dis-

eatrelativelyhighertemperatures(par.86).

rywhenithasbeenexposedto subzerotem-

ryisto bechargedimmediatelyafterward.If

tteryisnotputon charge,thelayerofwater

ebeforeitgetsa chancetomixwiththeelectro-

Inspectthelightscarefully.Checkfor

eofmoisturearoundthesockets.Beforeevery

ugs,wiring,andotherelectricalequipmentare

ethatbrushesandcommutatorareclean

Besurethatnoheavygreaseor dirthasbeen

outmechanism.Heavygreaseordirt maykeep

edor causethemtoremaininmeshafter the

atterwill ruinthestarterandnecessitate

fullchokeisnecessarytosecuretheair-

weatherstarting.Checkthebutterflyvalveto

ayandotherwisefunctionsproperly(par.130).

retorswhichgivenoappreciabletroubleat

ynotoperatesatisfactorilyatlowtemperatures.

austmanifoldheatcontrolvalve(par.130).

mpwhichwilldeliver enoughgasoline

ayhaveleakyvalvesor adiaphragmwhich

nga sufficientamountoffuelatreduced

sufficientvaportofiretheengineat reduced

ute.Remove,empty,andcleanfuelpumpbowl

mperaturesbelow0Fdonotuse oilin

gealand preventeasyflowofair.Washthe

NT,dry-cleaning,dry,andreplace.Iceand

leanerfiltering elementmaycauseanabnor-

nthecarburetorair horn.Below—30F,

r.131).


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




SUALCONDITIONS

eandcleansedimentbowlandstrainer

eorbypassoilfiltersat temperaturesbe-

iclewithbrakesreleasedinorder to

kes.Blockwheelsorotherwisepreventmove-

LE.Disconnectoil-lubricatedspeedometer

eratingat temperaturesof—30Fandbelow

ntly.

gine,pullthe chokeallthewayoutand

untiltheenginehaswarmedup.Turn the

ewith thestarterandreleasestartingpedal as

ter theenginehasstarted,idleit untilithas

unsmoothly.Donotracethe engineimmedi-

rstincreasetheenginespeed;thenturn

the throttleatthesametime.

ESSORIES.

weatheraccessoriesmaybeemployed

in chargeofthemateriel:

lapsibleshedsareuseful forcovering

engines.

or VanPragblowtorches,ordinaryblow-

senelanternscanbeused forheatingvehicles.

itiesfor changingbatteriesquicklyare

metalstandsareusefulforheating

newillhelppreventice formationin-

aturedalcohol,aboutone-halfpintto a

icultiesresultingfromwaterin gasoline.

mprovisedlocallyandhelpto keep

altemperatures.

OPERATION.

,thefollowingunitsshouldbechecked:

uldbekept cleanandfull(par.75).


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







shouldbe keptfreefrombugsandfor-

fectfreecirculationofair.

properlyadjusted(par.79).

requiresthe enginetolaboratlow en-

sed, ifpractical,asthiswillcauseoverheat-

ntwaterandaircirculation.

sitmaybe advisabletoremovethe

glessrestrictiontothe flowofair.

eindicator;andifthe needlegoesinthe

nd investigatethecause.Thevehicleshould

possible,andpermittedtocool.

ksarefrequent.Thefuellinesand fuel

wayfromareasofgreat heatandshouldnot

rculatedbythe fan.Ifvaporlocksoccur,it

atefuellines andfuelpumpswhichcannotbe

ERRAIN.

eCovers.

nd intheairin thedesert,moreis

ofvehicles,andduringasandstormthe

prohibitmovement.Withoutadequatepro-

willchokecarburetors,plugfeedlines,score

distributor,andincreasethewearonall bear-

willprotecttheengineif itiskeptclean.

onanddailyinspectionofairfiltersare theonly

will notgetintothe engine.Thecrankcase

eequippedwithaneffectiveaircleaner.Air

ovidedforanyother deviceusinganairin-

osterorenginedriven compressor.Airclean-

etheair streamwillhavetheleastdirt

nkcaseandfuellineswhenreplenishing

greatcareisusedduring theseoperations.

and offthecapsbeforeremovingandoffthe

containersbeforetheyareused.Itmaybe

sbootstoprotectfrontwheeljointsand dis-

lcausefailure ofinstrumentsinpanelif

ed.Scotchtapemaybeused forthispurpose.


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





SUALCONDITIONS

MAINTENANCE.

twill requiremovementoveralltypes

uitableforeverytypeofsurfacewhichwill

cultywillbemetinsand. Airpressuremust

ofgroundsurface.Oversandor softpow-

ssurepersquareinch shouldbereducedto

gthetiresthearea incontactwiththeground

tsitselftothe irregularitiesofthesandwith-

rust.Theminimumpressuremustbe deter-

e ofvehicle.Tiresonflat-baserimswillspin

oolow.

ewnground,tiresmustbeasfullyin-

ditionofthevehiclepermit.Atlowpressurethe

willbebrokenby theviolentinwardbend-

truck.Theresultingchafingwillwearout

no dangerisapparentfromtheoutsideof

y's marchwilltakeavehicleoverdifferent

isciplineis necessary.

heconstantshockandvibrationcaused

groundfrequentlycausescableclipsto shake

norshorted.Frequentinspectionofcable clips

washersinsertedunder thenutsifpossible.

causetroublebecauseofbreakingofwirein

ofregulatorpoints.Driversshouldwatchthe

nyotherinstrumentsinceovercharging,even

kletheplates,alwaysresultsin lossofbattery

aininthe desert.Thehighsalinityofwater

radiatorsforbidsitsusein batteries.

ustbecarefullyloaded.Excessivebreak-

onstantsourceoftroublein thevehiclesused

oingisveryhardon springsandtheyare

ding,improperdistributionofload,orshifting

SPECIALEQUIPMENT.

fromsoftsand,the drivingwheelsmust

rvehicleswith singletiresondrivingwheels,

provisionof apairofsteel channels4or5

he channelsshouldhaveacurvedbottom


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







holewidthof thetireatlow pressure.It

atthesidesto preventthetiresrunningoff,

m aroundedflangeoneachsideto strengthen

nsprojectingfromtheundersideand holes

preventthe channelfromslippingunder

beused toformaroadwayforfrontwheels.

ylateralrungsofsteel sewnbetweentwo

eexcellentforthispurpose.Suchmatscanbe

rolledoutinfront ofeachfrontwheelwhen

onthevehicle,asingle roundwooden

f channels.Thesparshouldbeplacedbe-

arail.

ttempttogetoutofthe sandbymeans

hevehiclehasbrokenthroughthecrustand

se,thedrivingwheelswillmerelysinkdeeper

onwill bemademoredifficult.

ughthe crustandbecomesstuck,ade-

emadeinfront(or,if backingout,inrear)

earendsofthe channelsormatsareona level

thread,andsothatthe slopeofthechannels

ot done,theenginewillbeunableto setthe

ial slopetoenablethewheelsto beginto

ceofthe extricatingequipment.Onceinmo-

drivento firmgroundorstoppedheading

ng stuckagainafterthechannelshavebeen

ghthecrustwhenstarting,vehiclesshould

e,onhardgroundor headingdownaslope.


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





enanceInstructions

N

3

ceandrepairbythe crewandotherunits

minedbytheavailabilityofsuitabletools,

arts,capabilitiesofthemechanics,timeavail-

tion.Allofthese arevariableandnoexact

edescribed.

gparagraphsarethe maintenance

arts havebeenprovidedfortheusingarm

mentsandrepairsaretheresponsibilityof

ersonnelbutmaybe performedbyusingarm

ancespermit,withinthediscretionofthecom-

S.Echelonsandwordsasusedinthis

tionsaredefinedasfollows:

ganizationregiments,battalions,com-

dseparatecompanies(first

celightmaintenancecompanies,ordnance

mpanies,ordnancedivi-

ions,andpostordnance

nceheavymaintenancecompaniesandser-

cebaseregiments,ordnancebases,arsenals,

s.


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







cing,cleaning,lubricating,tight-

oltsandnuts,andmakingexternaladjust-

ofsubassembliesorassembliesandcontrols.

ovingthepart,subassemblyoras-

mthevehicleandreplacingitwitha

ionedorrebuiltpart,subassembly

hicheverthecasemaybe.

grepairsto,orreplacementof,

assemblyorassemblythatcanbeac-

dwithoutcompletelydisassemblingthe

rassembly,anddoesnotrequire

riveting,machining,fitting,and/or

pletelyreconditioningandreplac-

ceableconditionanyunserviceable

ssemblyorassemblyof thevehicle,in-

welding,riveting,machining,fitting,alin-

g,andtesting.

ATION.

edwillnormallybeperformedinthe

Operationsallocatedtotheechelonsasindi-

mplishedbytherespectiveechelonsinemer-

par.49)x

place(par.49)x

pair•X

buildEX

ndreplace(par.152)X

thorizedtoremoveandreinstallitems markedbyon

tisnecessarytoreplaceanitemmarkedby anasteriskwith

ssemblyorunitassembly,theassemblymarkedbyan

romthevehiclebythe secondechelononlyafterauthority

gher echelonofmaintenance.


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





N

CHELONS

ggearandpinionassembly—


replace(par.152)X

standreplaceX

randcaster—adjustEX

—adjust(par.48).X

place(par.53)X

airX

uildEX



53)X

y,w/drum—replace(par.53)X

y,w/drum—repairX

y,w/drum—rebuildEX

X

ceX

ors—replaceX

e(par.3)..X

nandbackrest—rebuildX

thorizedtoremoveandreinstallitems markedbyan




igher echelonofmaintenance.


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







ONS

.3)X

aceX

ildX

serviceandreplace

booster(Hydrovac)—•N

booster(Hydrovac)—

booster(Hydrovac)—

master—replace(par.61)X

master—repairX

master—rebuildX

wheel,frontandrear—



placeX

repairX

r—adjust(par.65)X

r.63)X

eX

EMERGENCY)

ake)—adjustandreplace


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





N

EMERGENCY)(CONT.D)ECHELONS

ake)—repairX

y—replace(par.67)X

y—relineX

(par.73)E X

X

EX

X

—serviceandreplace

ce—replace(par.86)X

(generatorcontrol)—replace

(generatorcontrol)—

(generatorcontrol)—

ke(dashmount)—

ke(dashmount)—

chassismount)—

chassismount)—repairX

ceX

ceX

ting—replace(par.132)X

ting—repairX


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







MECHELONS

X

(par.82)X

6)X

ar.81)X

PONENTS

onic—replacex

—replaceEE X

aceEEX

e(par.79)X

serviceandrepair

—eplace(par.130)X

—epairX

—ebuildX

epairX

aceX

r.Ill)X

ondition)EX

EEx

ace(par.118)X

X

dEx

ace(par.77)X




romthevehiclebythe secondechelononlyalterauthority

igher echelonofmaintenance..


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





N

PONENTS(CONT.D)2m)3rd4fh j,h

air(par.22)X

dtion)EX

anifoldandoilpan—replace

place(par.88)X

pairX

buildX

par.107)EX

es—replaceEX

109)X

—replace(par.87)X

—repairX

—rebuildX

)EX

n(par.115)X

ndrings—replaceEEX

128)X

10)EX

ar.78)X

sembly—serviceandreplace...x

sembly—repairX

eEEX

par.Ill)Ex


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







PONENTS(CONT'D)ECHELONS

ace(par.110)EX

80)X

113)X

ndreseatEE X

s—replace(par.121)X

ldEX

ace(par.131)X

el—replaceX

el—repairX

ce(par.127)X

r.90)X

ace(par.91)X

ace(primarycircuit)X

place(par.91)X

pairX

buildX

(par.91)X

par.91)X

92)X

—replaceandrepairX


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





N

ESECHELONS

truments,gages,and

par.132)X

truments,gages,and

truments,gages,and

X

eEx

r.123)X

: x

ndguards)—replacex

ndguards)—repairX

..x

X

eplace(par.124)x

epair(par.124)X


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







BLYECHELONS

aljoints,assembly—replace

aljoints,assembly—repair....X

aljoints,assembly—rebuild..EX

SORBERS

age—replace(par.141)X

age—repairX

age—rebuildEX

place(par.141)X

pair-.x

buildEx

—replace(par.145)EX

—repairx

—rebuildEX

tparts—serviceand

tparts—repairX

tparts—rebuildX

DTRACKASSEMBLY

rand bogiewheel—replace

ce(par.56)X

e(par.57)X

EX

sembly—replace(par.58)X

sembly—repairX

sembly—rebuildX


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





N

DTRACKASSEMBLY(CONT'D)ECHELONS

X

m—replace(par.56)X

m—repairX

m—rebuildEX

NSFERCASE

n—replace(par.148)x

n—repairX

r caseassembly—replace

caseassembly—repairx

caseassembly—rebuildEX

eX

d(withserviceableassemblies)Ex

replaceshoes(par.155)x

ne)X

standreplace(par.155)x

ir(reline)X

56)X

oints—serviceandreplace

oints—repairX

ce(par.158)...X

X

EX

chfollowcontainsatrouble shooting

he vehicle.





igherechelonof maintenance.


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







NDEQUIPMENT

pment45

SANDEQUIPMENT.

tincludedin thissection,togetherwith

sectionVI, providetheusingarmswithnec-

ntforservicingthevehicle.

nceTools,StandardSets.

alStockNumbers

mechanics'41-T-3538

555

nt,secondechelonNo.141-T-3545-10








cePlatoonTools.

n

222


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





NDEQUIPMENT

up-

g,

-

ns-

ate

on,

m

d

e,

aft


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







ntial

-in.

;

,

d,

oler

,

-lb

ft

eel


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





dadjustments48

9

and35).

e-reduction,full-floatingtypehavinga

drivepinionanda conventionaltypedifferential.

nthroughconstant-velocityuniversaljointsen-

cklesattheouterendsof theaxlehousing.

preventcorrosionandrust formationonthe

tofthefrontaxle assemblyis820pounds.

emoved

nstalled

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

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





worn.

.

aster.

f

gclips(par.

offone-quar-

eringgear,

r.48).

max)

nnel.

nnel.

44).

8a).

rts.

ltsand

r.48b).

nnel.

nnel.

ltsand

r.152a).

nnel.

44).

(par.


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




gTieRodEnd

NCEANDADJUSTMENTS,

gAdjustment.

n.

1-in.

raisewheels.

(fig.36).

n.

movenutfromtierod endbolt.Removebolt

.

ig.37).

dofdraglink. Removecotterkeyandre-

ctdraglinkfromsteeringarm.


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






gSteeringDraglink

bearingretainernutsandlockwashers.Re-

onethinshimfrombothupperand lowershim

withnutsandlockwashers.Teststeeringknuckle

.38).

ngKnuckleBearingAdjustment


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




D/USRAPD18354

inement


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






eRodClampBolts

rod endofsteeringknuckle.Tensionorpull

ouldberequiredto movesteeringknuckleas-

srange oftravel.

tightthatitwill squeezeyoketogetherand

eeringArm.

oveJacks.

rallel wheninthepositionofstraight ahead

etheratthe frontthanattherear. Toe-inhas

gthetendencyofthewheelstoroll outwardor

mber.Specifiedtoe-inofthefrontwheelsisone-

thinch,andshouldbemaintainedwithinthese


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




oltNut — Removal

raisewheels.

heelsand, usingscrewdriverpoint,scribe

meetallthewayaround.

adposition,measurebetweenscribedlines

rewithmeasurementbetweenlinesatrear.

asnearhubheightas possible.Ifmeasurement

oone-eighthinchgreaterat rearoftiresthanat


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






RodEnd

heelStudNuts


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




gUniversalJoint

gBrakeTube


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






gSteeringDragLink

gShockAbsorber


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




.40).Removecotterpinfromtie rodend

boltnut fromendhavingfinethreads(fig.41).

d endonecompleteturntolengthenor shorten

rement(fig.42).Reconnecttierodend.Roll

checkmeasurements.Repeataboveoperations

cifiedtoe-in.Coarse-threadedendmaybeused

t.

s.

tightthatitwill squeezeyokeandcausea

curely.

MENT.

n.

in.

4-in.

end,1-in.

heelstudnut

NUTS(fig.43).

frontwheels.

UNIVERSALJOINT(fig.44).

rompropellershaftfrontuniversaljoint.

LEXIBLETUBE(fig.45).

ENCH,end,1-in.

enginecrossarmandat frontaxle.

GDRAGLINKATSTEERINGARM(fig.46).

otterpin.Removedraglinkplug.

ABSORBERLINK(fig.47).

bsorberlinkataxle.Removelinkfromaxle.


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






Removal

GUARDARMORS.

neguardarmors.

NGU-BOLTANDNUTS(fig.48).

tnutsandwashers.RemovespringU-bolts.

CLE.

ejustto therearofeachfront spring.Raise

ION:Placeblockingortrestleassafetyper-

ewillnot falloffthejacksandinjure personnel

MBLY(fig.49).

tfromundervehicle.

DTIREASSEMBLIES(fig.50).

pports.Removewheelstudnuts.Remove


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




emoval

HEELANDTIREASSEMBLIES.

LYINPOSITIONUNDERVEHICLE.

l— Removal


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







OLTANDNUTS.

EFLEXIBLETUBES.

RDARMORS.

KTOSTEERINGARM.

IVERSALJOINT.

SORBERLINK.

par.66).

DREMOVEJACKS.

DNUTS.


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





dadjustments52

and52).

ngle-reductiontypehavingastraddle-

onandaconventionaltypedifferential.The

ndthedifferentialcarrieranddifferentialare

heweightofthe rearaxleassemblyis796

angenuts(par.53).

eplaceaxleshaft(par.53 a).

eldriveReporttoordnancepersonnel,

sealsandreplaceif necessary

ANCEANDADJUSTMENTS.

Vfc-in.

chWRENCH,end,%-in.

2V4-in.

WRENCH,end,2%6-in.

socket,3/4-in.

1%6-in.

(2)WRENCH,wheelbearingnut,

le

heelstudnut


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







stalled

emoved

RINGADJUSTMENT.

ch

(2)

).

angenutsandlockwashers(fig.53).Insert

hreadedholes inflangetoforceshaftoutward

n.

ut


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





fromHousing

nately,pullingshaftout.Removedrivingshaft

Nut.

ebearingnut

nge.Removeouterlocknutandlockwasher

7).

WRENCH,wheelbearingnut

urningdrivesprocketuntil dragisfelt.Back

turn.

tandLockWasher.

RetainingNutsandWashers.

MENT.

shouldbe replacedifithasbecome

orn.Whenreplacing,useanewflangegasket.


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







t— Removal

Rerroval


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





.WRENCH,3/4-in.

n.WRENCH,%-in.

aftflangenutsand washers(fig.53).Insert

readedholesin flangeandforceshaftoutward

dgasket(fig.57).

NewGasket.

utsand WashersandTightenSecurely.

V2-in.

chWRENCH,end,s/8-in.

WRENCH,end,3/4-in.

WRENCH,end,2V^-in.

%6-in.

socket,3/4-in.

%6-in.

wheelstudnut

55).

LERSHAFTUNIVERSALJOINT(fig.58).

end,s/8-in.

saljointlockplate.Removefourcapscrews

ompanionflange.Lowerpropellershaft.

CKETASSEMBLY.

WRENCH,wheelstudnut

tainingnuts(fig.59).Removedrivesprocket

INE(fig.61).

amecoupling.

COUPLINGFROMBRACKET(fig.62).

gcouplingtoframebracket.

EMBLY.


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







moval

rings


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





gUniversalJoint

S(fig.63).

WRENCH,socket,1%6-in.

ockwashers,andU-boltsfromrearaxle.

etHubStudNut— Removal


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







tAssembly— Removal

ASSEMBLY(fig.64).

SEMBLYANDSUPPORTINPOSITION.

gBrakeLine


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





upling— Removal

UTS,ANDWASHERS.

ECOUPLINGTOFRAMEBRACKET.

ETOFRAMECOUPLING.

ALJOINT.

Removal


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







earAxleAssembly

CKETASSEMBLY.

r.55).

par.66).


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





TRACK

8

.

smountedontwobogiesuspensions.Each

ortedandrubber-tiredrollersrideon anend-

pportedatthe topcenterbyasteelroller and

ebythefrontsprocket.Therearidler sprocket

eproper tracktension.

ofendlessbandtype,madeofrubber

eswhichextendthroughoutthetracklength.

ngthe centerlineofthetracksandact as

etteeth.Theweightof onetrackisapproxi-

rackvehicletracksmustberemoved

oundsidehasworntothe extentthatwear

dexposureofthecablesis imminent.Quite

atefromand exposethecrossbarsbefore

thisconditionoccursthetrackmayberun

rsisimminent.

acktrackswhichareoperatedonroads

steron theright-handsideofthevehicle.

therbecombinedasreplacementswithother

ksshouldbe switchedfromonesideofthe

ertoobtainmaximumwearfromalltracks.

ertracktensionisthe mostimportant

ce.Propertensionisasimportantwithhalf-

reis withpneumatictires.Ifthetracktension

lsharder,causingincreasedtrackwearand

e,becausethetrackrunstoo hot.Tootighta

non therearidler,tendingto pullitout of


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








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





TRACK

bly— RemovedRAPD18371

hackle.Ifthetrackistooloose theguidesmay

and cutthebogietires.A loosetrackalsomay

ut oftheidlerthroat,looseningor bending

heidler shackleandpossiblytheidlershaft.

tyof thevehiclethrowingthetrack.

lacement.

ch

ames(fig.67).

tooneofthebogie rollerframeshafts.

hainoverthetopof thebogieframebracket

andhookit ontotheadjacentbogieroller

outofchain bytighteningtheturnbuckles.

amesiderail justbackofthebogie frame

untilthebogierollersare 5or6 inchesabove

epthe bogierollersandspringsin their

stingSprings(fig.68).

screwandbackoffadjusting nutasfaras

.69).


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






ssembly— Supported

nsiononAdjustingScrew


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




TRACK

opScrew

screwinas faraspossibletocompress

ard.

ollers(fig.70).

ndlockwashersfromupperrollerbrackets.

mbly.

chWRENCH,socket,3/4-in.

estudnuts. Removetheflange(fig.71).

rowbarAsSlide(fig.72).

kfrom flange.

or Installation.

hatwideoroutsideguideflangeson ground

rontofthevehicle.

Rear Sprockets.

utofBrackettoClearIdler Shackle.

top screwlocknut.

Screw.


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






— Removal

Removal


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




TRACK

ckfromIdler

ckle.Lowervehiclewithjacks.Remove

ar.57).

tlinedfortrackremovalwiththe additionof

h.

agraphe(a)through(g)above).

operationandevery1,000milesthere-

ssemblynutwitha tensionindicatingwrench

oreading)whichisequivalentto100foot-

blyandreplaceanydamagedorexcessively

agraphe(h)through(o)).

utsideguidewingsonthe groundsideofthe

vehicle.


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






arethesupportingand conveyingunits

andaresometimescalledsuspensions.Shocks

herollersdueto roughterrainaretransferred

vers andareabsorbedbythevolutesprings.

ar.Bogiewheelswillberemovedwhen

evenwith theheightoftherim flanges.Bogie

beralongoneor bothsidesscoopedout,due

kguides,need notbechangedunlessthereis

bberall thewayaroundthecenterportionof

eWornorBrokenBogieParts.

TUD,1-x12-in.(2)

cent,18-in.

d,3/4-in.

chWRENCH,end,2lA-in.

2%6-in.

WRENCH,socket,3/4-in.

socket,y8-in.

ket,1-in.

IV4-in.

ss

e).

y(fig.73).

CH,crescent,18-in.

x12-inchthreaded14 NFononeendand

ebogiespring blockandtightennutstocom-

ogiecrab isfreefrombogiearmtie bolt.

ieArmTieBoltsand BogieFrame

WRENCH,socket,1%-ia

eandinside),framebogiearmtie bolts,


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




TRACK

abAssembly

trikebogieframeshaftwithhammer(fig.

ndbogiearmtie bolts.

ogieRollerAssemblies(fig.75).

oltNuts.

WRENCH,socket,1%-in.

ssembly)nutsfrombogierollerbolts.

rame(fig.76).

yfromassemblyandremove.

Shaft.

meandBogieRollerBolts(fig. 77).

nerBearingandRetainer.

ockoutinnerbearingand retainer.


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






emoval

uterBearing,Retainer,andBearing

koutbogierollerouterbearing,retainer,

romLowerBogieRoller.


eachroller).

romHub(fig.79).

mblyandRemoveVoluteSpringsand

.


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





TRACK

ollerAssembly— Removal

iningscrewsandlowercraband spring

sandspringseats.

ocks.

omguideblocksandliftoffguideblocks

ame— Removal


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







ame— Removal

FromCrabBlock(fig.81).

bblockpinoutofassemblytowardWood-

emoveblock.

ews.

sshead

headscrewsfromeach(four)crabslide.

es.

sshead

headscrewsfromeachofthefourbogie arm

des(fig.82).

n.

emovetwocapscrewseachside.Remove


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





TRACK

earings— Removal

racketsandCrossTube.

WRENCH,socket,%-in.

mebrackettosiderail. Removetwobolts

meflange(eachsideofvehicle).Removeframe

embly.

tlinedinsubparagraphc(1) above.

cketsandCrossTube.

s.

.

CrabBlock.

ks.

dSpringsin Position.

alscrews.


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







emovedfromHub

y— Removal


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




TRACK

n— RemovalRAPD1838°

Hubs.

r andOuterBearings,Spacer,andRe-

and InnerFrame,

tand OuterFrame.

des— Removal


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






al— Removal

Nuts.

mbliesinPosition.

rBogieArmsandBogieTieBolts.

eBoltsandBogieFrameShafts.

).

d).

NGREPLACEMENT.

erparagraph56c(1) above,plusthefollow-

E,adapter

Assemblies(par.56c(2) (a)through

ealRetainersandBearingRollerAssem-

ngPulleyorDrift(fig.78).

ngrollerassemblies,spacer,andretainers.

erand removebearingcups.


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




TRACK

al— Installation

romBogieRollerFrames(fig.83).

ainers.If damaged,discardandreplace

arPlate— Removal


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






Gasket— Removal

s(fig. 84).

stallnewsealassembliesonto bogieroller

ewheel hubs.

ndInner SealRetainers.

emblies(par.56d (2)(j)through(p) ).

RPLATEREPLACEMENT.

erparagraphs55e (1)and56c (1)plusthe

sshead

r.56c(2) (a)through(d)).


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




TRACK

dPlates(fig.85).

sshead

atesbyremovingholdingscrews.

Plates.

r.56d).

wheelis mountedattherearof each

pportthetrack.Eachidleris providedwithan

djustingandcontrollingthetensionofits re-

MechanismRemoval.

WRENCH,7/8-in.

V2-in.

chWRENCH,crescent,18-in.

3/4-in.

end,!7/i6-in.

WRENCH,end,1* %6-in.

end,1y8-in.

,21/4-in.

6-in.

3/4-in.

e).


lercapto hub.Removecapandgasket

utandLockWasher(fig.87).

ndlockwasher.

t,18-in.

andbearingassembly.


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






utand Lock— Removal

.

positionandusing driftandhammer,

ndSeal(fig.89).

,removegreasesealandinner bearing.

pScrew.

opscrew.

onScrewTaperPin.

screwtaperpin.


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




TRACK

val

fromShackle.

catorandstrikeendoftensionscrewtaper

e.

andSeal— Removal


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






wandSprings— Removal

ndSprings (fig.90).

ndCotter Key.

moveshackleshaftnut.

erPostBraceLockNuts


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





TRACK

e— Removal

LockNutsand LoosenAdjustingNut

stingnutof idlerpostbrace.

ace-to-FrameBolts.

ndwashersholdingbracetoframe.

e(fig. 92).

lerShalt,

rStopScrewBrackettoFrame.

H,1-in.

andwashersfromidlerstop screwbracket

wandBracket(fig.93).

SpringSupportBracketBolts.

1-in.

ndwashersfromtensionspringsupport


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







ewandBracket—Removal

MechanismInstallation.

tedforremovalin subparagraphbabove.

racketandBoltsat Frame.

wBracketandBoltsatFrame.

Shafton IdlerPost.

tBraceand BoltsatFrame.

dCotterPin.

AdjustingNut toPullIdlerPost Back


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





TRACK

stingDepth

dSpringAssemblyinPositionand Insert

Shackle.

aperPinNut.

to CompressTensionSprings.

pacer,andSeal.

LockWasherandLockNut.

sket.

below).

s maintainedbymeansoftheadjusting

bandtracktensionisdennedasthattrackten-

undload,placedonthe centerofthetrack

ollerandtheidler, toproducea%-inchdeflec-

weenthetopsurfaceof thetrackandastraight

faceofthetrackatthetop rollerandthe

ackisgovernedbythetensionsprings,which,

haveacompressedlengthoffrom13%inches

onisincreasedbymovingthe trackidlerto

movingthei dlerforward.Thecorrectidler


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







e spring(D-78145),measuredfromthefront

tothefrontsideof therearspringseat

AD

4-in.

6-in.

wLockNutand StopScrew.

knutandstop screw.

6-in.

tholein springsupportbracket(fig.94).

nttooutsideofcastingandmarkdistance.

hteningadjustingscrewnutuntil springsare

rom13% inchesto13%inches,accordingto

e(fig.95).

wLockNut.

of stopscrew.Turnscrewallthewayout

ightenlock nutsecurely.

nafterevery1,000milesofoperationby

sindicatedabove,orbymeasuringdeflection

artofthis paragraph.

ent.

INCHBAR

d,3/4-in.

chWRENCH,end,2lA-in.

2%6-in.



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





TRACK

ngAssembly(par.57b (2),substeps

cer,andSeal.

,andsealfromidler(par.57c (2),substeps

r,andSeal.

ndseal.Ifgreaseseal isdamagedordefective,

LockWasher.

allbearingnut.

ROLLERS.

rmountedonbracketsis boltedtothe

acket.Itsupportsthe returningtrack.

ement.

pter

3/4-in.

WRENCH,end,21/4-in.

Hend,25/16-in.

CH,socket,3/4-in.

RENCH,end,25/16-in.

cknut.Loosenadjustingscrewadjusting

knut.Turnstopscrewtowardadjusting

ntrack.

ollerAssembly.

chupperrollerbrackettotop ofbogie

lerassembly.


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







mpressedSprings

ut.

ndSeal(fig.96).

BracketandBolt.

ndoppositeendbracket,usingdrift and

racket.

cket,usingdriftandhammer.

dBrackets(fig.97).

acketusingtwoscrewdriverstoraiseseal


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





TRACK

racket— Removal

sandRetainers.

eandretainer.Invertroller andrepeatfor

retainer.

eal— Removal


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







ovebearingcups.

dBearingRetainers.

sonEnd Brackets.

tsusing adaptersleevetoavoiddamageto

and Nut.

emblyonBogieFrameBracket.

ar.57d).


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





ovac)62

e64

s65

oller68

.

efront wheelsandontherear axledriv-

dunderthecontrolofa hydraulicsystemcom-

l,linkage,amaster cylinder,avacuumpower

elines,wheelcylinders,andbrakeshoes.A

keforparkingonlyismountedon acompanion

aft.Anelectrictrailerbrakecontrollerispro-

on atowedload.

emedy

RBOARD.

s,minoradjustment

.

eshoes.Adjustbrakes,majoradjustment

nt.Adjustpedalfreetravel(par.64a

heckandtightenconnections.

i-Bleedbrakesystem(par. 66a(1)

and(2) ).

fillmastercylinder(par.61).


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








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





nt.

urn

.

nt.

stment

wheelcyl-

ance

r.64 a

g.

stment

r.152).

stment

63b).

63bor c).

ESSUREREQUIREDFORSTOPPING.

es.

and

REQUIREDFORSTOPPING.

es.

oes.

and

63bor c).

63bor c).


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







er— Installed

m.

D.

orrectmounting(par.67c).

ed.

67c).

g.99).

rcylinderstoresthefluidto actuatethe

rolofthebrakepedal.

efluid inthemastercylindersupply

tleastoncea month.Theproperlevelofthe

opofthe tank.Thereshouldbepractically

tionofthe brakes.Anynoticeablelossindi-


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





ngBrakeLineatMasterCylinder

whichshouldbelocatedandremedied.Iftank

mpty,airwillbe drawnintothesystemwhen

uchacase,fillingthetankto theproperlevelis

llhaveto bebledateachwheelcylinderand

ttoremovethe trappedair.

ement.Themastercylinderassembly

placedasa unitwhenanypartofit isdam-

ws:

atMasterCylinder(fig.100).

astercylinder.

Switch(fig.101).

ghtswitch.

lpull-backspring(fig.102).


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







ngStopLightSwitch

ePin(fig.103).

vemastercylinderpushrodyokepin.

der-to-Bracket-MountingCapScrews

mslavecylindertofrontbrakes.Remove

bracketcapscrewsandlockwashers.

er(fig.105).Movemastercylinder

urningonits sidewillfacilitateremoval.

-BracketCapScrewsandLockWash-

n,andInstallCotterPin.

backSpring.

rontAxle.

mMasterCylindertoSlaveCylinder.

.


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





gBrokePedalPull-backSpring

T(HYDROVAC)(fig.106).

mpowerunit(Hydrovac)consistsofa

pendedpowercylinder,ahydraulicoperating

YokePin— Removal


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







derBracketBolt— Removal

vecylinder.Thethreefundamentalsareas-

ctunit.Theunit actsasapoweror booster

pedalandmastercylinderandreducesthe

tthepedalrequired forbrakeapplication.

ughanair cleanerandacheckvalvetothe

maybetestedinthe vehiclethrougha

theuseoftwovacuumgagesanda linepres-

follows:

manifoldvacuumandcheckvalvefor

mhosefromcenterplaceconnectionandconnect

artengine,observevacuumgagereading

utoffengine.Checkvalveshouldsealand

rethanone inchofvacuumin15seconds

airorreplacementofcheckvalve.

RUNNING.Makeafewapplicationsof

vacuumthatmightbe presentinHydrovac.

aulicpressuregageinthe bleedholeofafront

htflowofoil aroundthreadsongagebefore

alandnotegagepressureof hydraulicpressure

adingongage indicatesthatbrakefluidis


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





der— Removal

vacsleevecylinderwhichmakesitpossible

y)incaseofHydrovacfailure.Thishydraulic

hevehiclemastercylinder.

vac— Installed


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






ARRIAGEM14.ANDSIMILARIHCVEHICLES)

ngAirCleanerHose

uumgageandvacuumhosetotheHy-

ofateeconnection.Startengineand apply

draulicpressuregage(atwheelcylinder).

hysicalpressureas wasappliedinTest#2 the

elcylindershouldnowregisterthe original

nTest#2)plus theoutputoftheHydrovac

ith16inchesof vacuumshouldbeabout600

ydraulicpressure.This testproveswhether

erarefunctioning.

ondvacuumgageinplugholeof end

ntrolside ofpowerpiston,whichinturnhas

llowpistonrodto controlchamberofother

brakesarereleased,bothofthe control

tointakemanifoldvacuumthroughthehy-

heentireunitis suspendedinvacuum.Both

sterthemanifoldvacuum(asshownbyTest

ote gagesforleaks.Arapiddropof more

min15 secondsindicatesaleak.Ifnoleaksare

twithbrakesapplied.Ifleaksare nowindicated,

vedfromvehicleandrepairedorreplaced.

n.WhentheHvdrovacunitbecomesdam-


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





gVacuumHose

be removedandreplacedasacompleteunit.

HoseatHydrovac(fig.105).

mpsanddisconnectaircleanerhose.

neatHydrovac(fig.108).

hoseconnection.Disconnecthose.

toRearAxleatSlaveCylinder(fig.109).

avecylinder.

toFrontAxleatSlaveCylinder(fig.

ontaxleat slavecylinder.Loosenatfront


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







ngBrakeLinetoRearAxle

toMasterCylinder(fig.111).

astercylinder.

atMasterCylinder(fig.112).

astercylinder.

atSupportClip(fig.113).

sherfrombrakelinesupportclip.

acMountingNuts(fig.114).

washersfromHydrovacfrontmounting

rMountingBracketBolts,Nuts,andLock

WRENCH,socket,%6-in.


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





ngBrakeLinetoFrontAxle

ndlockwashersfromHydrovacrearmount-

embly(fig.116).RemoveHydrovacas-

mbly.

-FrameMountingBolts,Nuts,andLock

tingNutsand LockWashers.

SupportClip.

MasterCylinder.

erBrakeLinetoSlaveCylinder.

keLinetoSlaveCylinder.TightenLine

Cylinder.

earAxleat SlaveCylinder,

atHydrovac.

seatHydrovac.

heHydrovacaircleanershouldbe

egularmaintenanceintervals.Procedureisas


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







ngBrakeLinetoMasterCylinder

ngBrakeLineatMasterCylinder


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





upportClipBolt— Removal

HoseatAirCleaner.

nghosetoaircleaner.Disconnecthose.

anertobracket.Removeaircleaner.

ver(fig.117).

r.

er.RemoveCover,TopScreen,Filter,and

LightOil,andPermittoDrain.

r.Notepositionandrelationofparts (fig.

racket,

se.


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







ntBracketNuts— Removal

arBracketBolts— Removal


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





Removal

gs.119to122).

ebrakesproperconsistofacombination

shoes,abrakedrum,and awheelcylinderfor

hreardrivesprocket.Theshoes,linedwith

anchoredatoneendand theoppositeendactu-

rCleanerTop— Removal


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







rCleaner— Disassembled

.Thefrontbrakesare ofLockheeddesignand

gnerHi-Torkdesign.IntheLockheeddesign

chorsat thelowerend,andin theHi-Tork

— RearView


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





— InsideView

oppositeends,the anchorofoneshoebeingat

er shoeatthetop.

ntWheels.Brakeshoeswhichhave

ouldbereplacedinthefollowingmanner:

RENCH,box,^6-in.

n.

socket,3/4-in.

ut

mFloor.

andraisefront wheelsfromfloor.

veFlangeNuts.

dlockwashersfromfrontaxledriveflange.

veFlange.

ppedholes inflange.Forceflangeoffshaft.


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






LY

— RearView

gOuterLockNutandLockWasher.

wheelbearingnut

emoveouterlocknutandlockwasher.

gAdjustingNut.

ut

justingnut.

bly.

nchorNuts.

RENCH,end,3/8-in.

and removebrakeanchorpinnutsand

lamp,

ring,

Pins,


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




keShoes.

horPins.

gand RemoveWheelCylinderClamp.

orPinNuts andWashers,

.

djustingNut.

rings.Tightenwheeladjustingnutwhile

nitedragis felt.Backoffadjustmentone-

OuterLockNut.

Flange.

(3)).

ehicleandremovejack.

veSprocket.Brakeshoeswhichhave

ouldbereplacedasfollows:

esprockethub

earingnut,andhandle

7/16-in.

chWRENCH,end,V4-in.

2V4-in.

WRENCH,end,25/16-in.

socket,3/4-in.

heelbearingnut

b).

eShaft(fig.55).

genutsandlockwashers.Turnflangescrews

emovedrivingshaft.

Nut(fig.56).

drivesprockethub

fterbendingtabonlockwasher.Remove


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





ARRIAGEMM.ANDSIMILARIHCVEHICLES)

— InsideView

tingNut(fig.57).

ut,

earingadjustingnut.

erWasher— Removal


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




olt— Removal

etAssembly.

etainingWasher(fig.123).

fromupperanchorpin.Donotremove"C"-

ranchorpin.

amp.

uideBoltsandWashers(fig.124).

olt)frombrakeshoeguidebolts. Remove

hoeReturnSpring(fig.125).

disconnectupperbrakeshoereturnspring.

hoeReturnSprings(fig.126).

disconnectlowerbrakeshoereturnspring

hoe(fig.127).

oe(fig.128).Toremovelever-actuated

ydrauliccylinderwall,giasp theactuating

heshoe andactuatingpushrodandmovelever


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






ShoeReturnSpring— Removal

oninthedirectionof thebrakeshoecontour.

androtatebrakeshoeoutward.Thiswillper-

borewithoutinterference.

installlever actuatedbrakeshoewith-

bore, placebrakeshoeinextremeoutward

ngpushrod(fig. 128)intoboreofwheelcylin-

erposition.

cesofShoeBearingsatAnchors,Cams,

eel BearingGrease.

rnSprings,

iningWasher.

eBoltsand Washers.Adjustshoeguide

hforkedfeelergagemaybe insertedbetween

oeguide washeratbothsidesat thesame

utssecurelyafterascertainingthatthe thick

ethinnut ontop.

ssembly,

earingAdjustingNut.

earings.Adjustmentisaccomplished


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




ShoeReturnSpring— Removal

oe- Removel


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






hoe— Removal

puntil definitedragisfeltwhilerotating drive

mentone-eighthturn.

nd Washer.

stall DriveShaftNuts.

a).

LLINKAGE.

e servicebrakepedallinkageandits

ekepttight.Ifpedal returnspringisweakor

ced.Wornclevispinsshould berenewed.

MENT.Thebrakepedalshouldbead-

reetravelbeforethepressure strokestarts.

dtopreventblockingofcompensatingpartin

eswilldragifcompensatingpartbecomes

ildingupin thesystem.Shouldallbrakes

suremayberelieved byshorteningthepedal

ouncoverthecompensatingpartallowing

his adjustmentisaccomplishedasfollows:


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




GuideBoltAdjustment

pull-backspringatpedal.

frompushrodclevis.

vispinfrompush rodyoke.

rod.

d yokeofmastercylinder.Adjustrod

t untilpedalwillhaveViz-inchfreetravel.

allClevisPin,andHookUp PedalRe-

STMENTS.

ntsarenecessarywherebrakeliningsbe-

pedalfreetravelexists.Adjustmentshouldbe

yto"pump"the brakepedaltosecureproper

kingbrakeadjustments,wheelbearingsmustbe

rbrakeshavebeenadjusted,theremustbe

edalfreetravel.Totakeupforliningwear,


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






djustment

required.Wheninstalling newshoesor

onshavebeenalteredamajoradjusttnentis

ORWEAR,FRONTWHEELS.

1%6-in.

n fullyreleasedposition.

frontwheelsarefreefromthefloor.

0).

ustmentinthedirectionof theforwardrota-

frontshoecontactsthedrumand adefinite

ckoffadjustmentcamuntilthewheelis

stmentinthedirectionof thereverserota-


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




djustment

shoecontactsthedrumanda definitebrake

ckoffadjustmentcamuntilthewheelis

vejacks.

tionsofanchors(fig.120).

ORWEAR,DRIVESPROCKETBRAKES.

ox,lVi0-in.

procketbrakebackingplateshavefour

pacedtofacilitatebrakeadjustment(fig.121).

justment(fig.131).

nutand turncaminthedirectionof the

esprocket(movingthepunchmarktoward

shoecontactsthedrum.

ckoffoncamnutuntila clearanceof


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






eCover— Removal

dthsinches)isobtainedatthe heelendofthe

cover(fig.132).

nstarwheel,movinghandleof screwdriver

oe contactsthedrum.

ckoffstarwheelbymovingthehandle

omtheaxleuntil aclearanceof0.012inch

isobtainedatthetoe endoftheshoeas

IV2inchesfromtheendofthelining.

g.133).Recheckclearancesto0.008inch

ontshoecamadjustment,beingcarefulnot

tionsofanchors(fig.121).

MENTAFTERRELINING(figs.119and

d,i5/i6-in.


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




oeClearance

ganchors(figs.119and120).

chorssothatpunchmarksareawayfrom

thepunchmarkswillfaceeachother.

ts(fig.130).

oncamadjustments.Rotatecamadjust-

faraspossiblein thedirectionofthereverse

tecamadjustmentontherear shoeasfaras

he forwardrotationofthewheel.

figs.119 and120).Rotatecamadjust-

wardrotationof thewheeluntilthereis a

rnshoecentralizinganchorin thedirection

heel(movingthe punchmarkawayfrom

brakedragisfelt.Noteposition ofthepunch

nganchorbackintheoppositedirectionun-

ke dragisfelt.Notepositionof thepunch

nganchoruntilpunchmarkishalf waybe-

producingafreewheelInthis positionthe


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






akeShoeClearance

.NOTE:Whenshoecentralizinganchoris

hereverserotationofthewheel,it willde-

eheelandincreasethe clearanceatthetoe

me time.Whentheshoecentralizinganchor

ectionthe clearancewillincreaseatthe

e anequalamountatthesametime.

34).Checkbothroeandheelof the

etodeterminethe nextstepstobetaken.Adjust

centralizinganchorinaccordancewithabove

ceof0.005inch(fivethousandthsinch)is

clearanceof0.010inch(tenthousandths

eendoftheshoe asmeasuredatapproximately

of thelining.

).Tightenlock nutsecurelyonshoe

eckclearancesatbothfoeandheel endsofshoe

asnotaltered.

toperationsin3, 4,and5,aboveat rear

atshoecentralizinganchorsubstitutingthe

d"forward"inthedescriptionof wheelrotation.


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




akeShoeClearance

ELINING,REARBRAKES.

en,y8-in.

erandanchornutcovers(fig.136).

ganchors(fig.137).

ENCH,box,1Vi6-in.

heshoe centralizinganchorsandcam

eshoes.Thiswillplaceadjustmentcamand

position.

atestarwheelto full"OFF"positionby

verawayfromtheaxleuntilthe starwheel

s.137and 138).Turncamadjustment

wardrotationofthesprocket(movingthe punch

tilthe shoecontactsthedrum.Turntheshoe

anAllenwrench,movingthepunchmarkaway


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





ARRIAGEMM.ANDSIMILARIHCVEHICLES)

ndStarWheelCover— Removal

ctionoftheforwardrotationofthe sprocket)

drum.Notethe positionofthepunchmark,

irection(movingpunchmarktowardthe

again contactsthedrum.Notepositionof

adjustmentbackuntilpunchmarkishalf

xtremes.Thiswillindicatethattheshoe is

E:Whencamadjustmentisturnedinthedirec-

of thesprocket(movingthepunchmark

aranceatboththetoeandheel willbedecreased

e camadjustmentisturnedinthe opposite

chmarkawayfromthedrum)theclearance

illbeincreasedatthe sametime.Whenthe

sturnedinthe directionofthereverserotation

epunchmarktowardthedrum) theclearance

sedandtheclearanceatthetoewill beincreased

me time.Whenturnedintheoppositedirection

wayfromthedrum)the clearanceattheheel

earanceatthe foewillbedecreasedanequal

134and135).Checkbothtoeand heel

essgagetodeterminethenextstepsto betaken


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




BrakeShoes

s.Adjustcamandtheshoe centralizinganchor

oveinstructionsuntilaclearanceof0.008inch

obtainedatthe heelendoftheshoe anda

welvethousandthsinch)isobtainedatthe toe

redatapproximately1V2inchesfromtheends

thisadjustmentwhilesecurelytightening

ralizinganchorandholdadjustmentwhile

knutoncamadjustment.

echecktheclearancesatbothtoeandheel

ot altered.

138).Turn thestarwheel,movingthe

owardtheaxleuntil theshoecontactsthe

alizinganchorinthe directionoftheforward

ngthepunchmarkawayfromthe drum)

drum.Notethe positionofthepunchmark,

irection(movingthepunchmarktowardthe

contactsthedrum.Notethepositionofthe

backuntilthepunchmarkis halfwaybetween


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






BrakeShoes

indicatethatshoe isroughlycentralized.

elisturned withhandleofthescrewdriver

eclearanceatboththetoe andheelwillbe

e.Whenthestar wheelisturnedwiththehandle

awayfromtheaxle,theclearanceatboth the

asedatthesametime.Whentheshoecentraliz-

edirectionofthereverserotationof thesprocket

owardthedrum)theclearanceatthe heel

earanceatthe toewillbedecreasedanequal

ckbothtoeandheelofthe shoewitha

nethenextstepsto betakeninmovingthe

arwheelandtheshoe centralizinganchor(fig.

eaboveinstructionsuntila clearanceof

dthsinch)isobtainedat theheelendofthe

012inch(twelvethousandthsinch)is obtained

asmeasuredat approximately1l/2inchesfrom


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




dtheadjustmentswhiletighteningse-

centralizeranchor.

Rechecktheclearancesatbothtoeand

menthasnotaltered.

verandanchornutcovers.

8illustratesthebrakepiping diagramof

emetal tubingorflexiblelineswill impair

akes.Allcouplings,connections,andfittings

enedbytighteningthe nutsonthehoseand

csystemconsistsofdisplacingall trapped

mulatedinthesystemwiththe fluid,bymeans

the linesuntilitflows inasolidstreamfrom

fthe wheelcylinders,eachofthedrivesprocket

hreebleedervalvesat theHydrovac.This

ywhensomepartofthe hydraulicsystemhas

enthefluidlevelin themastercylinderhas

rovedbrakefluidshouldbeused.Neveruse oil.

vacshouldbebledof trappedairfirst;then

andsprocketcylinders.

DURE.

nd,3/8-in.

,end,3/4-in.

oorplateindriver'scompartmentoverthe

Removetheplate.

mastercylinder.

ketfromtopof mastercylinder.Becareful

nterthemastercylinder.

ntofillerholeofmaster cylinder.


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






werCylinder,ShowingBleederScrews

C(fig.139).

eatHydrovac.

cuumlineatHydrovac.

wercylinder.

VER

,end,%-in.

valvescrewfromvalvenearestpower

rtube,theend ofwhichshouldbeina glass

mountofbrakefluid.The endofthetube

eofthe liquid.Unscrewthebleederconnection

rn.Depressbrakepedalslowlybyhand and

owlyto itsreleasedposition.Continuethis

oreair isexpelledattheend ofthebleeder

es.Tightenbleedertube.Install bleedervalve

dersupplytankmustbekeptfilledwith

dingoperationto preventairfromentering

ylinder.


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




ET

GSET

)

(2)

LOCK

CATING

ER

NER

ER(2)

T

VERARM

OD

T

RING

HER

EVERARM

VISPIN

rake— Installed


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






p(2) (b),aboveatothertwobleeder

eatHydrovac.

DDRIVESPROCKETCYLINDER.

end,3/8-in.

ureateachfrontwheelcylinderandeach

outlinedinstep(2) (b),above.

.

llerplugand gasketatmastercylinder

figs.140and141).

haftbrakecomprisesaventilateddisk

haftcompanionflangebetweenthetrans-

brakeshoeswhichbear onthediskwhen

elever,asupportingbracket,andthe neces-

keshouldbeset afterthevehicleisbrought

evehicleisin motion.

tment(figs.142and143).Brakeshoes

o,but nottouching,thediskwhenthebrake

enthe liningsbecomewornsothebrakewill

dbemadeas follows:

pen-end,3/8-in.

nd,3/4-in.

CH,open-end,1V4-ia

6-in.

ly.

everPullRodClevisPin.

alNut(fig.140).

n.WRENCH,open-end,1V4-in.

tightensphericalnutsothatlever arm

ghpressuretobring operatinglevertostop

frontleverarm.


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




UADRANT

REWS(2)W,LOCKWASHERS(2)

SSEMBLY

RANTSCREWW,NUTANDCOTTERPIN

WLROD

EVISPIN,W/PAWLANDCOTTERPIN

LOCK,W/WASHERANDCOTTERPIN

KEENDPULLROD

W/COTTERPIN

rakeLinkage


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






rakeShoeAdjustment

PullRod (fig.141).

WRENCH,open-end,%-ia

feelergage betweenthefrontshoelining

d locknutandadjustpull rodtomaintain

dPullRod.

ullrodto operatinglever.Insertclevispin

.

WRENCH,open-end,1V4-ia

agebetweenrearshoelining anddisk.

aintain0.010-inchclearance.

stingSetScrews(fig.140).

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


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




rakeShoeAdjustment

atbottomofbrakeshoeis inposition.

ngsetscrew.Adjustset screwssothatlinings

Tightenlocknut.

Replacement(figs.140and141).

1n-

n.

n.

6-in.

n.

yReleasedPosition.

BrakeYokePullRod.

veshaftbrakeyokeandpull rodand

ensionSpring(fig.140).

gfromlowerendofbrakeshoes.


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






erBrakeController— Installed

fromOperatingLeverTieRod(fig.

H,IVi-in.

ericalnutonoperatinglevertie rod.Re-

LeverTieRodfromBrakeShoeLever

pliedposition(towardthefront) todis-

rakeshoel everarm.Removeleverarmre-

tainerPinScrews.

n.

keshoeretainerpin screws.

votPins,

Pins.


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




gControllerCables

ngBrakePedalPullRod


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






ngOvertravelClevisRod

nerPinScrews.

onSpring atBottomofShoes,

aseSpring.

verTieRodatBrakeShoeRearLever

b(2)(c) to(h),above).

RAKECONTROLLER(fig.144).

yoperatedelectricbrakecontrolleris

justablelinkagetothefootbrakepedal.The

ationofelectrictrailerbrakesatthe same

hebrakingeffortofthepropellingvehicle.

nmaybeadjustedbymeansof theload

rumentpanel.Turningtheknob totheleft

ncreasesthe brakingeffect.

intenanceandAdjustments.Nopar-

uiredotherthantokeepnuts andscrewstight

t deviceisprovidedsothatextremevariation

entofthe pedal.rodandcontrollerlever

is madebychangingtheclevispositionon

ter, center,orinnerpositionsonthecon-

g.Ordinarily,thecontrollerleverandrodmo-

hiftassemblyis connectedintheinnerposi-

theouterpositioncausesalonger rod


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




ontrolfer-to-BracketAttachingBolts

otion.Adjustmentofthe controllershiftis

wingprocedure:

NTROLLERPULLRODATTHEBRAKE

EVERATCONTROLLERINEXTREME"OFF"

NFULLYRELEASEDPOSITION.

ENPULLRODTOPERMITATTACHMENT

ntrollerReplacement.Shouldthe

ative,itshouldbereplacedasfollows:

sfromController.

ockwashersfromterminalsanddiscon-


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






alPullRodatRelayLever(fig.146).

evispinandremovepin todisconnectbrake

elClevisRodatRelayLever(fig.147).

ver-travelclevisrodatrelaylever.Remove

BracketAttachingBolts,Nuts,andWash-

ts,nuts,andwashersatbracketRemove

ontroller-to-BracketwithBolts,Nuts,and

evisRodtoRelayLever.

kePedalPullRodat RelayLever


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




ent72

9).

eisasingleplate,dry disktypeunitandis

12cap screws.Theclutchtransmitspower

nsmission.Theweightoftheclutchassembly

edalcausesthethrow-outbearingto move

tthereleaselevers.Pressureof thebearing

elievesthespring pressureontheclutchpres-

Inthisposition,theclutchis "released."The

engagedor fullyreleasedwhiledriving.The

slowlyandnotallowedto engagesuddenly.

willtakeholdgradually,willnot slip,and

thepedalis depressed.

eclutchwillbe indicatedbyclutchslip-

,causesandremediesofwhichareas follows:

emedy

vel.Adjustclutchpedal(par.72a).

ceclutch(par.73).

cedrivenmember(par.73).

eplaceclutch(par.73).

venmember(par.73).

Tightenenginemountings.

eplaceclutch(par.73).


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





RRIAGEM14. ANDSIMILARIHCV EHICLES)


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



pScrews— Installation

rings.Replaceclutch(par.73).

RAVEL.

tore-Adjustpedal travel(par.72).

VEL.

mre-Adjustpedal travel(par.72a),

OPGEARS.

ustpedaltravel(par.72 a).

msordinarilywillnotattemptany repairs

wearon theclutchfacingsthroughadjust-

dothersymptomsordefectsarise reportto

ersonnel.

DJUSTMENT.

ustedwhenthe naturalwearonthe

sedthefreetravelofthe clutchpedalbefore


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






mbly— Removal

chpedalstarts.Theclutchpedalfreetravel

o 2inchesoftravelbeforeclutchdisengage-

-in.

ROMADJUSTABLEROD-ENDYOKEAT

d-endyokepinatreleaseshaft

YOKE.

emoverod-endyokepin.

eningorshorteningasnecessarytoprovide

.Disconnectingclutchpedalpull-backspring

ofcontactofreleasebearingwith clutch

KEPINANDCOTTERPIN.

ADJUSTABLEYOKE.


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




413

allation

mblyiti sfirstnecessarytoremovethe

ssis,unlesstheengineis alreadyoutforover-

escribedinparagraph118and transmission

agraph148.)

ch

4-in.

ws(fig.150).

4-in.(3)

lutchcoverto holdassemblyforfacilitating

).

chWRENCH,socket,%6-in.

dingclutchassemblytoflywheel.Remove

tchdisk.


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






ginflywheelandrelubricatewithGREASE,

cediskinposition withlongendofhub toward

chpositionthat arrowonclutchcoverisas

L"onflywheel.Insert12retainingcapscrews

nclutchassembly.Insertclutchaliningarbor,

gearthroughdrivenmemberand enterend

oldwhiletighteningretainingcapscrews.

wsfromCover.

e capscrews(fig.150)andflatwashers

etheywereinstalledmerelytoholdthe assembly


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




ns83

3and154).

emconsistsofa thermostat,radiator,fan

aterpump,connectinglinesandhose,anda

pacityis31quarts.The systemmaybedrained

ocatedatthe bottomoftheradiatorand

eright-handside oftheblockjustbehindthe

ovingthedrain plugfromtheoilcoolerat the

ovalofthe radiatorfillercapwillfacilitate

adiatorfillpipe isatthe upperleftportion

essiblebyraisingtheleft-handsideofthe hood.

or,permitenginetowarmtoapproximately

terlevel.Addwaterif necessary.

emedy

system(par.78b(2)(o) ).

s.Adjustorreplacebelts (par.79).

Replacethermostat(par.80b).

eplacewaterpump(par.78b).

Cleanandflushsystem(par.83)

ancore(par.83).

orrecttiming(par.94).


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







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






rontView

.

80

UD(figs.155and156).

orisofsheet metalreenforcedc

and tubularconstructioncore.The

htofthe assemblyis96pounds.


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




RearView

moval.

ofradiator.

end,%6-in.

ottedscrewsatbothfront (two)andrear

nel.Removeboltfromhoodatfronttop

adio bondingstrap.Removehood.

end,%6-in.

wsandnutsfromlouvreplate.Remove


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






omlouvreassemblyandsidearmorplate.

emblyFrameatChassisFrame.

end,3/4-in.

cketsfromeachsideofthelouvreframeat

re fivecapscrewswithnutsandwashersat

emblyCrossRods.

semblystayrodmountingcapscrewsat

ntrolRod.

rdandremovecotterpinfromcontrolrod.

ontrolrodfromlouvreassemblylocatedat

vreandFrameAssembly.

mblyfromchassis.

ayRodsfromRadiator.

mountingnuts,oneeachsideof radiator.

adiator,adjuststayrodstoprovideVi- to

enfanbladetipandradiatortoptank.

odsatCrossMember.


nutsateachside ofradiatoratcrossmem-

eath.Disconnectstayrodsfromstudsatside

ntingNuts,Washers,Springs,and

4-in.

uts,washers,springs,andmountingpads

rt.

atorHose.

diatorhoseconnection.Removeradiator


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




rgeTank.

atortosurgetankat radiator.

rapsatRadiator.

herholdingbondingstrapatboth leftand

disconnectbondingstraps.

mFanHub.

nbladetohub. Removefanblades.

ShroudfromChassis,

ssemblyfromRadiator.

/2-in.

disconnectlowerhoseclamps.Removehose.

dInstallation.

EASSEMBLY.

NDSHROUDONCHASSIS.

ONFANHUB.(Adjustradiatorstayrods

arancebetweenfanbladetip andradiatortop

TRAPSTORIGHTANDLEFTSIDESOF

RGETANKATRADIATOR.

LOWERRADIATORHOSE.

OUNTINGPADS,SPRINGS,WASHERS,NUTS,

STAYRODSATEACHSIDEANDATFRAME

EMBLYANDFRAMEONCHASSISFRAME.

RLOUVRECONTROLRODTOLOUVRE

ODSTOFRAMECROSSMEMBER.

SSEMBLYFRAMETOSIDEFRAME.

ATE.

TEM.


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





RRIAGEM14. ANDSIMILARIHCV EHICLES)


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




radiatorcoreismaintainedbymovement

bladedfanwhichisenclosedinashroud.The

shaftbydualV-belts,Thefanissecuredto

pbyfour%6-inchcapscrews.Thefanhuh

pump.(Forreplacement,seeparagraph78.)

).

pumpisofthe centrifugaltypeandisof

resnoexternaladjustment.Lubricationispro-

rings(sec.V).

ent.Waterpumpandfanreplacementis

end,3/4-in.

ENCH,end,13/16-in.

RENCH,end,1-in.

ornerofthe radiatorandremoveradiator

pHoseConnections.

ctionsatwaterpumpinlet(lower),water

entwooilhoseconnections(lowerrearpor-

emove.

ENCH,end,13/16-in.

ENCH,end,1-in.

erbracketmountingbolts.Removetwo

bolts.Movegeneratorintowardengine.Re-

ndFan(fig.158).

p-body-to-cylinder-blockbolts.Removepump

Body-to-Cylinder-BlockGasket.


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






— Removal

.

kwasherssecuringfantofan hub.Re-

withFourBoltsandLockWashers,

p-Body-to-Cylinder-BlockGasket,

FanAssemblyonCylinderBlock,

dy-to-Cylinder-BlockBolts.

oseatInlet,Outlet,andat OilCooler

stmentStrap.


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




stment

.

paragraph79.Tighten generatormount-

gsystem,permitenginetowarmtoap-

nrecheckwaterlevel.Addwaterif necessary.

T(fig.159).

anbeltsisimportantsincetoo looseaten-

ngwhile excessivetensionwillcausepre-

enreplacingafan belt,twonewbelts

lassure bothbeltshavingthesametension.

IONOFFANBELTS.

nchWRENCH,end,3/4-in.


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






— Removal

tmentstrapboltnut.

mentstrapboltnut.

belttensionis indicatedbyapproximately

romastraightline representingthebackside

thefanpulleyand thegeneratorpulley,

aybetweenthetwopulleys.Insert thebar

dtheenginejustto therearofthe adjusting

nd ofthebarin therecessinthemounting

rtoengine(fig.159).Loosenthegenerator-

t,byusingthebarasa prybar,pullthegenera-

y,exertingfullone-armpull ofanaverage

ator-to-adjusting-strap-boltnutsecurely.

typethermostatislocatedinthe water

derheadat therightfrontofthe engine.For


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




422

— Installed

ber3635itis settostartopeningwhenthe

es145F,andshouldbefully openat180F.

635and later,itstartsto openat170F.The

tedwithoutthethermostatin coolorcold

ent.Toreplacethermostat,proceedas

System.

Hose.

satwateroutletconnection.

ousing.

kwashersfromthermostathousing(water

outletconnection.Removethermostat(fig.


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






ermostat.

singupandwith smallvalveofthermostat

ngine.

nection(ThermostatHousing),

rHose.

menginetoapproximately160Fandr e-

terifnecessary.

.

kismountedon bracketsonthedashof

ompartment.Thetankis connectedtothe

poseofthe surgetankisto actasanexpan-

chamberforcoolantfromtheradiator,since

rsealedpressure.The tankcapisofpressure

vetopreventsystemrising aboveaprede-

removethiscapwhenfillingthecoolingsystem.

becomenecessarytoreplacethesurge

SurgeTanktoRadiator.

oratbaseof surgetank.

ndlockwashersfromsurgetankmounting

ountingBolts,Nuts, andWashers.

toratBaseof SurgeTank.

ION.

oolingsystemshouldbe filledwithan

eezesolution,eitherreclaimedornew,as

mshouldbecleanedthoroughlyandtightened

.Thefollowingtablegivestherequired quantity

Lantifreezenecessaryforvarioustempera-

hesystemcapacityof31quarts.


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




NS.Reclaimedsolutionsshouldbeused

nadministrativevehicles.Neverusereclaimed

mbatservice.

dSolutions.

heoldsolutionon arackandinstalltap.

hydrometeranddiscardallsolutionstest-

muslin orseveralthicknessesofcheese-

tainer.Solutionshouldbe greenorblue.

rownor rustytint.

erthanthetemperaturetowhichprotec-

theamountof newETHYLENEGLYCOL

edprotectionfromthe followingtable:

DDEDTOOLDSOLUTIONTOMAKE

MEDSOLUTION


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





hroughmuslinorseveralthicknessesof

ontainerinwhichthequantitiescanbe meas-

olutioncanbe pouredintotheradiatorof

ntityofETHYLENEGLYCOLforeach

n.NOTE:Donotstrainnewantifreeze

ecoolingsystemofthevehiclebeclean,

oolingsystemwas cleanedandinhibited,it

rain,refill withcleanwater,andagaindrain.

,connectedintothecoolingsystemmust

heradiatorandblock.Whenthe systemis

the right-handsideoftheblock,thedrain

oilcoolerin theoilpan,andthe radiatordrain

assure completedraining.

pectedandreplacedifdeteriorated.All

etcocksshouldbeinspected,andmadewater-

ofexhaustgasorairleakageinto thesystem,

stbemade.

miscleanand tight,thestrainedanti-

thshouldbe added.Afterfillingtotheproper

reinhibitorforeveryfour gallonsofantifreeze

em.Thecontentsofthe containershouldbe

ilethe engineisidlingat normaloperating

roughmixing.Thecoolingsystemcapacity

s.

rm,thesolutionstrengthshouldbe

erandstrengthenedifnecessary.

onrequisitionunder FederalStockNo.

ntifreezecompound.NOTE:Ifdeliveryof

ouldbe addedattheearliestpossiblemoment

ehiclestobe protectedwithnewsolu-

ccordancewithsubparagrapha(1)(b)above.

nsmaythenbeadded.The following

deinpreparationofthe solution:


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



RESHANTIFREEZESOLUTIONS

Ltobeaddedto

lonofantifrtvzesolution

theradiator.Thenaddrequiredamount

hesystemandfillwithwaterto slightly

alsotable 1above.)

ionand warmingtheengine,thelevel

solution checkedwithahydrometerand

y.

tofreshlypreparedantifreezesolutions.

eworusedsolution,thecoolantshould

rengthandcolor.Ifthe solutionbecomesrusty,

oolingsystemthoroughlycleaned,andnew

tionis notavailable,donotdiscardrusty

olution,it isessentialthatit bekept

waterthatarefreefrom dirt,rust,andoil.

ehydrometer.Totestthehydrometer,

ETHYLENEGLYCOLandtwoparts

giveareading onthehydrometerofprotec-

heonlyantifreezeauthorizedforuse

ECAUTIONS.

emsshouldbegivenasystematicservic-

bouttwicea year(springandfall).Cooling

servicedbeforetheintroductionofananti-

also followingitsremoval.Addl/2pintrust

emisserviced.

ngofacoolingsystemconsistsofdis-


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





andgrease inthesystemanda thorough

nitiatedbyremovingone gallonofwater

ga solutionofonepoundofwashingsoda

dof SODAASHinonegallonofclear water.

run untilthesolutionboilsthoroughly.Cover-

orwillspeedupthis operation.Drainthesystem

sideoftheengine,removingthedrain plug

d bydisconnectingthelowerhoseconnection.

thecoolingsystemshouldbeeffectedin

edirectionof normalflow.Thisiscalled

diatorshouldbeflushedupfromthe lowerhose

perhoseconnection.Afterflushingthesystem,

emoved,checkedbydippinginhotwater,

onnectingclampsandsectionsofhose,

yexaminedforserviceability.Replaceany

systemandcheckforleaks.

n thecoolingsystemofavehiclefreezes

yplacingthevehicleinawarm place.Under

heenginebeoperatedwhenthewaterin the

en.Inthecaseof mushice,itissafe toplace

e,but theicemaybethawedbycoveringthe

gineslowly.If theenginehasbeenstarted"

ng,stoptheengine.Covertheradiatorand

teamingstops,startand runtheengineuntil

blished.

atorsupportsandtierodsand keeptight-

ionofcontrollinkagetolouvres.

nforRadio-equippedVehicles.

tteron radio-equippedvehicleswillnot

entsupplyofvoltagelower thanapproxi-

asionwillsometimesarisewhereintheengine

peedtopermitthegeneratortodevelopthe

inradiocommunication.Duringsuchoperation

e exercisedsothatdamagetotheengine

notoccur.

ryto operatetheenginewhilethe

hepurpose ofmaintainingradiocommunica-

stbewatchedattentively.Ifthe temperature

approximately)theengineshouldbestopped.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



tendencyto overheatisencountered

echeckassoonas possibleandnecessary

natetheoverheatingtendency.

tingengineoverheatingmayberelieved

ehicleintothewindand openingthehood.

mustbeopen.Prolongedengineoperation,

orthepurpose ofchargingabattery,willbe

batteriesmustbereplacedandrechargedfrom

eventexcessivecoolingoftheengine

dweather,theradiatorshuttersor louvres

orthe radiatorcorepartlycoveredinsome

econnectionsshouldbeexaminedfre-

acedifthey showsignsofdefectordisintegra-

sand obstructionsofthesystembyloose

hesystemin coldweatherifitdoes

advisableto operatetheengineforapproxi-

terdrainingtoassureeliminationofwater

cylinderhead,orwaterpump.NOTE:Besure

ofcrankcase,andatoilcooleratbottomof

ordraincock.


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






5

3

hts99

ctcurrent)isof singlewire,groundre-

oma storagebatterywhosenegativeterminal

he systemisdividedintothreegeneralclassi-

tery,starter,generator,andgeneratorregu-

tteryandcoil,high-tensionignitiongroup;

ting,protective,andcontrolequipment.Figures

ethe vehiclewiringdiagram.Figures165to

iringharnessesand thetypeofelectrical

(Also,refertoparagraph97).

HOOTING,

PRIMARYCIRCUIT.

emedy

enconnections.

wire(subpar.b(1)below).


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




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






SW.

D

m— StartingandChargingCircuit


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




tacts.

h.

r

(7)).

1cbe-

ONDARYCIRCUIT.

ve.

ections

ked.

ust-

ge.

ctive.

91b).

).

1b).

1b).

erminewhichofthe wiringcircuitsis

nitesystemofcheckingshouldbeused. The

redmerelyasquickcheckstogetan approxi-

f trouble.Thismayaidintemporarilycor-

mergencysothatthevehiclecanbebrought

sivecheck.Completeignitionanalysisrequires

nts.Twoseparatequickcheckscanbemade,

enginewillorwill notrun.


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






i


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




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





RRIAGEMl 4,ANDSIMILAR IHCVEHICLES)


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




RT.Ifthecrankingmotorcranksthe

speed,buttheenginewill notstart,remove

nd holdleadterminalabout%Ginchfrom

rkoccurswhileengine isbeingcranked,

condarycircuitsareprobablynotat fault

singfromanout-of-timecondition,orfrom

tion,suchascarburetion,etc.CAUTION:

theenginedoesnotstart.This practicewill

ororrundown-thebattery.Crankingshould

secondsatone timetoavoidoverheatingthe

oes notoccur,checkthedashammeterwhile

ngwhichshowssomefluctuationwhile

obablynotatfault. Thesecondaryisnot

sof energyinthesecondarycircuit,orade-

heprimarycircuitisopen,due toloose

ngorswitch,distributorpointsnot making

mary.Visualinspectionofthepoints andthe

locatingtrouble.

readingofseveralamperesandthe

whilecranking,eitherthecontactpointsare

arenot breaking,orthecoilprimarycircuit

externally.//thecrankingmotorcranksthe

thenthetroubleprobablylies eitherinthe

rcableconnections,startingswitch,orinthe

notsatisfactorily,theusualrecourseis

,duringwhichthecauseorcausesof trouble

d.Thisconditionis usuallysomewhatdif-

ofthemanyotherfactorsbesidesignition

tionofthe engine,andwhichcouldinfluence

meindicationofthetrouble,ifduetoignition,

ypeof troublebeingobtained.

nition,couldbe causedbyimproper

,other thanthatproducedbycertain

sedby impropertiming,impropercentrifugal

onaccumulationincombustionchamber,points

uledorof wrongheatrange.


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







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




ess— UpperLeft— OuterandInner

ing,or lossofpower,acompletecheck-

andremainderoftheengineshouldbe made,

uldarisefrommanycauses.NOTE:Over-

ng,hardstarting,orlossofpower,all mayarise

eengineasidefrom ignition.

ematicanalysisoffundamentalsisof

tionsystemtroubles.Anaccuratelowscale

illaidinlocalizingthedifficulties.Thefollow-

fortroubleshooting:

RCUIT.Removethecoil-to-distributor

cableandholditthree-eighthsofaninchfrom

venientmetalpartoftheenginewhichisfree

ndbreaktheprimary circuitwiththeigni-

singthestartingmotororby rockingthe

backandforth.A hot,snappysparkshould

test(2)below.Ifno sparkoccurs,check

tobesureit canconductcurrent,orsub-

goodandrepeattest.Ifa weaksparkis

enserorthecoilor bothareatfault.Turn

ngmotorand lookforexcessivearcingat

wouldbeanindicationof abadcondenser.

peatoriginaltest.Ifsparkis stillweak,coil

Withthecoil-to-distributorwireinserted

stributorcover,removecover,andturnen-

ecurrentinthesecondarycircuit.Observe

dmoistureandwatchforleakageor ashort

pfromthecenterterminalto thesparkplug


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







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




hichresemblecrackswillalsobeapparent

er.Totestwhetherthesecondarycircuitis

enterbrushorterminalinside thecover,hold

cableagainstthispointwithitsother end

omaground.A sparkshouldjumptoground

isinduced.

Agroundedrotorwillinterrupt thepas-

ecentersegmentandthe sparkplugcables.

erotor,detachatthecoverthe cableleading

istributorcover,andhold thecoiltodistributor

e-eighthsofaninchfromtherotor.Inducea

kingandbreakingtheprimarycircuit.Ifa

oundedandmust becleanedorreplaced.

Withthesecondarycircuitcheckedas

lattermustbetested toinsurethatthespark

thechargeinthecylinder.Thereareseveral

maybe detected.

ybeused.Thisinstrumentrequiresthe

fcompressedairthepressureof whichmay

ngementpermitsobservationofsparksoccur-

externalsparkingor leakingmaybenotedfor

hepointorgap ofasparkplug when

dermaynothaveenoughstrengthto jumpthe

wedintothecylinderandundercompression.

certainrhythm.Ifasparkplug ofaregu-

edout, adifferentrhythmisproduced.By

gswitha bitofascrewdriveracrossthe

oting theresultontheoperationof theengine,

eckedquickly.Ifacylinderisalreadymissing,

enits plugisshortedout.

tisfactorilyafterit hasbeencleanedand

psetting,replacementisnecessary.

stantNormal.Discharge.Undersuch

ycircuitiscompletebutitisnot beinginter-

arydischarge.Severaltestscanbemadefor

ndincircuitsbeyondthe ignitioncoil.

necttheprimarywirewhereit entersthe

eterneedlereturns tozero,thedistributor

ributorcoverand watchforopeningofthe


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






esenceofforeignmatterasa shuntaround

alinsulationtoinsurethat movablepointis

enser.Ifthecondenserisshorted,asparkwill

r"pig-tail"isdisconnectedfromthedistributor

e.

WIRE.Iftheammeterneedledoesnot

imarycircuitisopenedatthedistributor as

etothedistributoranddisconnecttheend at

ltocheckforagroundedcoil-distributorwire.

returntozero, examinethecoilterminalfor

,etc.Ifnoground isfoundexternally,the

oil whereoneoftheprimarywindingsnear

Coilreplacementisnecessary.

charge.Azeroreadingonthe ammeter

sedindicatesanopencircuit.Groundthe

ywindingentersthedistributor,and ifaspark

edistributor.Ifnoflash occurs,thefaultlies

thepointsforclosingandmakesurethat

or thecurrentthroughthepointsto ground

urntothebatterysideofthe ammeter

holdingoneendof atestatthe terminalbeing

eragainst aconvenientground.Ifthestarting

rrentmustbe available,andbystartingat

maybetracedfromthere.

nthebattery sideoftheammeter,place

erminaloftheammeteragainstexcessivetest

thecircuitbreakers,thebatterysideofthe

dewiththe switchclosed,andsoontocom-

tributor.Thebreakordefectwillbe found

hatshowedthepresenceof currentandthe

denoteditsabsence.Aftersatisfactoryrepair

ccomplished,theammetershouldberecon-

malDischarge.Suchadischargemaybe

theprimarycircuitpasses throughthe

dingsofthe coil.Thetroublecanbelocalized

rwhileturningtheignition switch.


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




NUTCLAMPROD

osition

shammeterregisterszerowith the

mustbepasttheswitchbut shortofthecoil

."Ifthedischargeexistswiththeswitch

roubleliesbetweentheammeterandthe

inationofthegeneratorcircuitandleadto

ovetherespectivewirestonotetheeffecton

ethefault.A largedischargeordirectshort

eaker.

ell,leadacid typebatteryisratedat

6-hourrate.Thebatteryislocatedin acompart-

mebelowtherightdoor.The weightofthe

Adirect-currentvoltmetermaybeusedto

ebattery'sconditionasfar asitscapacity

ned.Withtheengineshut downandnoload

cuitreadingshould beapproximately12

morethan2to 3volts)involtageunder heavy

ed,forexample)willindicatethatsomething

itsconnection.


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






olyte)shouldbecheckedatregular

oalevelof three-eighthsinchabovethe

eronlyshouldbeused. Incoldweather,water

e,or atthebeginningof,a chargesothat

hmixinganddangerof freezingwillbe

vityshouldbemaintainedabove1.250.Aread-

ldbemaintainedwhenthetemperatureofthe

dingof1.220indicatesa half-chargedbattery

owerindicatesacompletedischarge.Tests

madeimmediatelyafterwaterhasbeenadded

Testsshouldbemadebefore waterisadded

eenonchargeorin useforafewhours.

lspecificgravityofthe electrolyte,itis

mperatureofthesolutionwitha thermometer.

al,80 F,thespecificgravityreadingwillbe

mperatureisaboveorbelow80F itwillbe

wancetodeterminetheactualspecificgravity.

theliquid expandswhenwarmandthesame

weighsat normaltemperature.Thereverseis

mperatureisbelownormalor80F theliquidhas

volumeweighsmorethanitweighsat normal.

72)showsthefiguresto beusedtomakethese

whenthespecificgravity,asshownbythe

90andthetemperatureofthe electrolyteis

osubtract8pointsor 0.008fromthe1.290

ctualspecificgravity.Ifthe hydrometerreading

ureof110Fit willbenecessarytoadd12

dingwhichgives1.282astheactualspecific

ndbatterycompartmentmustbekept

tplugstightenedalthoughthebreatherholes

open.Ifelectrolyteisspilled oranypartsare

ofordinarybaking soda(onepoundof

er)orweakammoniashouldbeapplied,and

erinsedwith freshwateranddried.Noclean-

wedto enteracell.Cleaningclothscon-

dbediscarded,andspecialcaremustbe

wayfrommateriel.


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




CorrectionChart

ndterminalsshouldbekepttightor the

otbemaintained.Scrapecleanwithacoarse

urfacewithhot waterandsoap.Coatter-

rease,topreventformationofcorrosion.

madeonthe vehiclefornormalcharg-

ge-regulated,battery-chargingdirect-current

ollowingsubparagraphs.Shouldthebattery

ghoverloadingorneglect,however,itshould

dauxiliarybatterycharger.

TS.Checkthebatteryforheatingin warm

smorethanblood warm,approximately

itsandexcessivecharging.

regions,dangerof overheatingismuch

ates.Thebattery,whenfullycharged,should

vityof1.225undersuchconditions.

t80 Fhasonlypartialdischargecapac-

sshownin thefollowingchart:


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






ebatteryelectrolytedeterminesthe

tterywillbe harmedordamagedbyfreezing

hart:

aybestoredforseveralmonthswithout

electrolyteisfullymaintainedattheproper

hargedeitherby periodiccharging(every

y)orbytricklecharging.Ifeitherofthese

oredbatterieswillbeavailableforimmediate

lf-dischargingwhilestandingidle.Idle bat-

fasterinwarmsurroundingsthan those

rbeing idleforseveralmonthsandthen

dischargedorpartiallychargedstate,thebat-

dhavea shorterlife,andamuchreduced


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




enconnections.

onnections.

Replaceregulator(par.89).

eplacegenerator(par.88e).

order.Replaceregulator(par.89).

orreplaceregulator(par.

T.Toreachthebatteryit isnecessary

armorplatesformingpartofthe battery

ENCH,end,%6-in.

ver.

holdingbatteryboxtopcover.Remove

eplate.

ndnutsholdingthebatterybox sideplate.

es.

egativebatterycablesfrombattery.Dis-

st.Thiswillpreventdestructivearcs.

ownbolts.

teryhold-downbolts,oneateachendof

yclampassembly.

assembly.

eryclampassemblyrods.Removeclamp


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






or

nboltnutsand washers.

stobattery.

dterminallast.

morplate.

s.173and174).

flange-mounted,6-brush,6-poleunit,

dbyamagneticswitch andusinginternal

xdriveprovidesautomaticmeshingofthe

nkingmotorcontrolswitch isclosedandthe

ed.Whentheenginestarts,the drivepinionis

d.Theweightoftheunitis42 pounds.

0hoursor1,000miles,the following

icatebyadding8 to10dropsof lightengine

rs.Thecoverbandshouldbe removedand

torinspected.Ifthecommutatoris dirty,it

R,flint,classB, No.00.CAUTION:CLOTH,

emustnotbe used.Ifthecommutatorisrough,

s highmica,thecrankingmotormustbe

atorcanbeturneddownin alatheandthemica


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




TRAP

D

USING

ASHER(3)

or— Installed

onforgoodcontactasmeasuredontension

ces.Ifthebrusheswearrapidly,it maybead-

kingmotorandcheckforexcessivespring

ghmicaonthecommutator.Theconnections

ghtandthemountingstudsand lockwashers

0 hoursor6,000miles,thecrankingmotor

evehicleandreplacedbya new,rebuilt

esenttoa higherechelonforrepairand

rhastheresponsibilityofproperlyop-

rwhenstartingtheengine,andof observing

ankingmotoroperatesso thatifabnormal

correctivestepscanbetaken.Whenthe

d,itshouldtakehold promptly,andspinthe

speed.CAUTION:Neveroperatethecranking

dsata timewithoutapauseofseveralminutes,

willdamagethecrankingmotor.Neverattempt

ecrankingmotor.

rankingmotorcrankstheengine slow-

lowstolocatethetrouble:


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






anksthe engineslowly,checkthe

,switchconnections,andcables,inthecircuit

ankingmotor.Defectsatanyofthesepoints

ngmotoroperation.Lowtemperatures,as

onsintheengineorcrankingmotor(tight

vyoil,etc.)willreducecrankingspeed.Ifthe

nectionsatthebattery,itis sometimespossible

erminalbackandforthafew degreessothat

edandstartingcanbe accomplished.The

inal andtightentheconnection.Ifthecon-

d order,removethecrankingmotorcoverband

dcommutator.Dirty,gummy,oroilycom-

gtension,orwornbrushesmaypreventgood

.Ifthecauseofdefectiveoperationseemstobe

ator,itmaybe cleanedbyoperatingthe

gapieceoffine PAPER,flint,classB,No.00,

Thisisatemporarycorrection;thecranking

fromthevehicleassoon aspossibleand

oesnotoperateatall, itmaybetheresult

hepreviousparagraph.Also,itcouldbe due

gneticswitchorsolenoidswitchcontrolcircuit

ad frombatteryterminalofmagneticswitch

etopofthe magneticswitch.Thisbypassesthe

rcuit.Ifthemagneticswitchandthecranking

agneticswitchcontrolcircuitisopen.Ifthe

rstilldonot operate,connectaheavyjuniper

nterminals,connectingtheleadtonuts andnut

eads.Thisconnectsthecrankingmotordirect

normalcondition,itwilloperatenormallyand

owntobeinthe ignitionswitch.Ifthecranking

e,and thebatteryleadsandconnectionsare

ubleis inthecrankingmotor.Thecranking

eremovedsothe brushes,commutator,andin-

checkedasoutlinedinthepreviousparagraph.

mutatorissodirty orburnedthatthereis no

utatorandbrushes,itissometimespossibleto

armatureafewdegreesbyhand,usinga piece

,No.00,to cleanthecommutatorsothatgood

notrotatethearmaturewith ascrewdriveror

woulddamagethecommutatororriser bars,

naspossible.


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




ment.

WRENCH,end,s/8-in.

RENCH,socket,%6-in.

dAmmeterCables.

andammetercableatstarter.

tton-to-Starter-SwitchWire.

n-to-starter-switchwireatswitch.

usingScrewsandLockWashers.

WRENCH,socket,%„-in.

lywheel-housingcapscrewsandwashers.

r.

artingMotorandRetainingCapScrews

terButtontoStarter Switch.

mmeterWirestoStartingMotorSwitch.

5and176).

torisaheavy-duty,12-volt,55-ampere,

ilatedunit,drivenbya pulley,withthearma-

driveendandcommutatorendofthegenerator

gs.Thegeneratoroutputiscontrolledbythe

etailedinthe regulatorsection(par.89).The

ds.

000miles,thecoverbandshouldbere-

orandbrushesinspected.Ifthecommutatoris

hPAPER,flint,classB, No.00.CAUTION:

ve,aluminumoxide,tocleanthecommutator.

orgood contactasmeasuredonatensionscale

engthisnotsufficientto lastuntilthenext

eratorshouldbereplaced.Thepulleynutshould

houldbecorrect,andthemountingboltstight.

ginthegenerator-to-batterycircuitshouldbe

tetheballbearingsbyturning greasecups


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






RACKET

CASE

T-REAR

BRACKET

O

OVER

ITHSHAFT

TERPIN

Installed

STRAP

BRACKETBOLT

RACKET

RSCREW(4)WITH

000milesthegeneratorshouldberemoved

cedbya neworrebuiltunit.Theold unit

echelonforrepairandrebuilding.See"Polariz-

lacement,"below.

rofthevehiclehastheresponsibilityof

hichthegeneratoris performing,sothatifsome

tionsarenoted,propercorrectivestepsmaybe

ureoftheequipmenttakesplace.Duringstart-

ntis inoperation,thepositionofthe ammeter

tteryisina lowstateofcharge,theammeter


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




NERATORSUPPORTBRACKET

K-POLESCREW

BRACKETL-BRACKETTOGENERATORSCREW

THLOCKWASHER(4)

EENDFRAME

EASECUP-FRONT

ATORPULLEY

-SHAFTNUT,WITHWASHER,

gh chargingrate.Ifthebatteryis inagood

atorwillsoonbegin toreduceitsoutputas the

replacedinthebattery.Thisreductionofoutput

erationofthegeneratorregulator,andresults

toroutputtoafewamperesas thebattery

on.Thisactionisindicatedbya droppingback

wardzero.Failureofthe equipmenttofunction

herconsiderationofthe unitsasoutlinedbelow.

egulatorcontrolsthegeneratoroutput

larloadandspeedconditioninthe operating

enanyabnormalconditionofoperationisnoted,


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





ckthegenerator-regulatorsystemasawholein

ineitherthegeneratoror theregulator.This

ertheregulatorsection(par.89). Ifthe

tosomeconditioninthe generator,thegenera-

rasindicatedbelow.

UT.Ifnooutputcanbeobtainedfromthe

verbandandcheckforstickingorwornout

edcommutator,orothercausesorpoorcontact

andthebrushes.Ifthetroubleis duetoa

ator,operationmaybetemporarilyrestoredby

lint,classB,No.00,againstthecommutator

he generatorisoperated.CAUTION:Donot

minum-oxide.Wornbrushes,roughorout-of-

ertroublesnotreadilyapparent,willrequire

tofthegenerator.

TPUT.Checkforloosedrivebelt,sticking

ension,dirty,out-of-round,orroughcommu-

commutator.

hemaximumoutputofthegeneratoris

mmeterwhilein operation,butwhencoldis

esat13voltsand900 revolutionsperminute.

ytheresultof ahighregulatorsetting,etc.

heckforloosepulley,mounting,wornbear-

edbrushes.

t.

4-in.

end,13/i6-in,

ENCH,end,%-in.

ENCH,end,1-in.

matureTerminalandatField Terminal-

tureterminalofgeneratorandatfieldtermi-

dioSuppressionFilter.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



-to-RegulatorGroundWire.

generator.

ap-to-Generator-BracketBolt.

ENCH,end,3/4-in.

ng-strap-to-generator-bracketboltwithnut

h%-inchwrenchandremovenutwith %-inch

enginetopermitremovalof fanandgenera-

tor.Removebeltsfromgeneratorpulleys.

-Lower-Bracket-MountingBolts,Cotter

n.

RENCH,end,1-in.

werbracketfrontbolt.Removenutsand

o-bracket-mountingbolts.Removeboltsandre-

ssionFilters.

terstogenerator.Removefilters.

cementGenerator.

neratorandLowerBracketMounting

atorDriveBelts.

enGenerator-Adjusting-Strap-to-Gen-

andWasher.

orDrive Belts.

mengine,usingwheelhubstuanut wrench

lone-armpull onbarsothat fanbeltswillbe

allgeneratormountingboltnuts.

oNoiseSuppressionFilters.

atureTerminalandtoFieldTerminals

asoutlinedinsubstep(p) 1below.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





egulator— Installed

talledon theengine,connectallleads

eratorfield "F"terminal.Useajumperlead

minalmomentarilytothe insulatedbattery

mentaryflashofcurrentto flowthroughthe

ctlypolarizesthegeneratorwithrespectto

torwiththefieldcircuitconnectedandthe

connected(opencircuitoperation)sincethis

obuildup withinthegeneratorwhichwould

ature.

AOR(fig.177).

torregulatorconsistsofthreeunits,a

gulator,andacurrentregulator.

sthecircuitbetweenthe generatorand

ratorvoltagehasbuilt uptoavalue sufficient

battery.Thecut-outrelayopensthecircuit

orstopsand currentbeginstoflowbackfrom

tor.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



reventstheline voltagefromexceeding

dthusprotectsthebatteryand otherelectrical

ighvoltage.Onecharacteristicofbatteries

cgravityorthechargingrateincreases,

same,thebatteryterminalvoltageincreases.

eldconstantasthebatterycomesupto charge

s)thechargingratewillbereduced.Thevoltage

ofholdingthe voltageconstantanditconse-

ricalsystemfromhighvoltageandthebattery

mitsthe generatoroutputtoasafevalue.

mitingdevicewhichoperateswhenthegenerator

safe maximumanditpreventsthegenerator

.

placement.Every600hoursor6,000

atorshouldbereplacedbya neworrebuilt

oa higherechelonforcheckandadjustment.

end,Vi-in.

eneratorRegulator.

end,V2-in.

hdisconnectwiresatarmatureterminal

fieldterminalon generatorregulator,andat

atorregulator.Besurethatlead clipdoesnot

Donot groundwrenchwhiledisconnecting

egulator-to-Bracket-MountingBolts.

or-regulator-to-bracket-mountingbolts,nuts,

rs.

minalWireandRemoveGenerator

permitremovalofground terminalscrew

ovegeneratorregulatorfromvehicle.

eneratorRegulatorandConnectGround

lator-to-Bracket-MountingBolts,Nuts,

.


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






shersareanimportantpartof theradio

andmustbeinstalledat eachbolthavingone

onewasherbetweengeneratorregulatorbase

herundernutof bolt.

atorRegulator.

wire,fieldterminalwire,andarmature

regulator.

ragraph88e (2)(p).

roubleShooting"inparagraph88candd

nerin whichthegeneratorandtheregulator

dybeendetailed.Thecurrentregulatorpre-

tfromexceedingthesafemaximumofthe

regulatortaperstheoutputdownasthe battery

adrequirementsarereduced.Failureto operate

heranalysisas outlinedbelow.

isnoted,thetroublemaybefurther analyzed

ceoftrouble,sotheproper correctivesteps

TERYANDAHIGHCHARGINGRATE.

mal,andwill producebatteryovercharge

Todeterminewhichunitis atfault,withthe

out2,000revolutionsperminute,disconnect

"F"terminal.If theoutputdropsoff,the

ult.If theoutputremainshigh,thegenerator

placed.

latorwhichappearsatfault,the effect

onsidered.Abnormallyhightemperatures,as

ounteredinthedesertor tropics,tendtoreduce

batteryoverchargemayoccur,evenwithnormal

gs.Reporttohigherauthority.

LowORNoCHARGINGRATE.

tivewiringandlooseconnections.Ifthese

connectajumperleadbetweenthearmature

e regulatorwiththegeneratoroperatingat

erminute.Iftheoutput increasessubstantially,

deredtobe atfault,anditshould bereplaced.


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




th theterminalsbridged,thenthegenerator

gatfault, anditshouldbecheckedasoutlined

ofthegeneratorsection(par.88).

ncyinvolvingthevoltageregulator,itwould

thefieldterminalleadat thegeneratortopre-

pinganyvoltagewhileoperatingwith

action,oruntil theparticulartroublecanbe

ncasecontactsofthegeneratorregulatorrelays

has noprotectionelectricallyotherthanto

terminalsdisconnectedsinceitcannotreadily

tocontinuerunningandretainthebelt drive

edure,ifmaterialisavailable,istoreplacea

thereisindicationoftroublethat cannotbe

rrected.

8).

ledandtightlysealed withaporcelain

sureconstantoilimmersionofthehigh-tension

istoconvertthe pulsationsofdirect

emto highvoltagesurgeswh'ichareproduced

withthe correcttimingtotheengine.Each

esasparkat thesparkpluggapwhichignites

whichhadbeendrawnintothe cylinder.When

osed,currentflowsthroughthemto thecoil,

obuildup inthecoil.Whenthecontactpoints

dthe magneticfieldcollapses,causingahigh

d.Thishigh voltagesurgethenpassesthrough

androtor,to thesparkplugs.

aintenance.Ifindoubtas toacoil's

unitknowntobesatisfactoryandcheckdiffer-

e permits,proceedasinparagraph89to

alsmustbekepttight,clean,and dry.

ENCH,end,V2-in.

onCablefromCoil.


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





RRIAGEMM, ANDSIMILARIHCVEHICLES)


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




— Installed

onWirestoDistributorandtoSwitch.

adsfromcoil.

gbracketnutsandfourspeciallockwasher;

oil.

heroneachsideof coilmountingbracke

LeadstoCoil.

abletoCoil.

hedistributoris ofthefullyautomati

bythe camshaftthroughanextensionofth

Rotationofthedistributorshaft isclockwis

unit.Theadvancemechanism(at4degree

about300revolutionsper minuteengin>

vance22V2degreesisat1,800 revolutionspe:


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






0hoursor1,000miles,makethefollow-

rcapshouldberemovedsothe capandrotor

cracks,andburnedpaths.Capandrotor

ftcloth.Checkcentrifugaladvancebyrotating

malrotationbyhand.Itshouldturn afew

cespringsand,whenreleased,shouldcome

.Inspecthigh-tensionwiringand connections.

Ifthepointsare badlyburnedorpitted,itwill

em.Thepointsmaybe adjustedbysetting

to 0.024inchorcamangleto35 degrees.

VER

rseTENSIONSCALE

pandRotorandDust CapfromDis-

rWire.

reatbreakerarmindistributor.

romDistributor.

wfromBreakerPlateinDistributor.

actpointatbreakerplateindistributor.Re-

sandSetBreakerArmTension.

breakerarmtensionat17to 21ouncesas

onmaybechangedbybendingcontactarm

erwire.

s.

kercontactsarefullyseparated.This

bingblockonthebreakerarmis onthehighest

elocknut onthecontactscrewandadjust

0.018to 0.024inchwithpointsfullysepa-

wpointsmaybe checkedwithafeelergage

points makepointsettingwithgageunsatisfac-

tactanglemetershould beusedtocheck

ts.(Contactordwellangle is35degrees.)


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




etainingBolt— Removal

topeningwithafeelergage,checkopening

fferenceshouldnotexceed0.001inch.If

hormore,or thecamsareeccentric,thedis-

d.Astherubbing blockontheignitioncontact

gbecomeslate.

ScrewandRecheckGap.

perbetweenthecontactsandturnthe

ose.Drawthepaperbackand forthtoremove

on thepointstoassuregood contact

Setting.

asfar astheslackinthe distributorgear

scorrect,thepointswillopen andclose.

,and DistributorCap.

peeds afterreplacingdistributorcap.If

moothly,checkengineignitiontiming.

nt.

end,yi6-in.

High-tensionWiresfromDistributorCap.


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






Removal

onLeadatSideofDistributor.

adfromsideofdistributor.

tainingBoltandWasher(fig.180).

ngboltandwasherfromdistributorclamp

mTachometerDriveHousing(fig.181).

orInstallation.

rotatedwhilethedistributorwasremoved,

ountedinthe originalposition.However,if

will benecessarytoproceedasfollows:

directionofoperationuntil theNo.1

er.Thispositionmaybecheckedwithaposition

e No.1sparkplug.Thenotchon thecrank-

shouldnow coincidewiththepointeron

eindicatoratdistributorclamparmat zero

rrotorinposition forNo.1sparkplug. Insert

eterdrivehousingfromtheupper end,meshing

edistributorshaftwiththe grooveinthe

thetachometerhousing.

dyintoposition sothatbreakercon-

step canbeperformedmostaccurately


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




handPointer

pacrossthecontacts.Thelampwill lightup

gintoseparate.Tightenthe clamparmbolt.

correct.If not,loosentheclamparmbolt

advanceorretardasrequiredandagaintighten

mpArmBolt.

WiresinDistributorCapin FiringOrder

matzero, andwithNo.1piston attopdead

crankshaftdrivepulleyindexingwithpointer,

stbegintofire.If adjustmentisnotcorrect,

p (e)above.NOTE:Anadvanceandretard

dbelowthe distributor.Theirpurposeistopro-

minginaccordancewiththeoctaneratingof the

ntisaccomplishedbylooseningtheretaining

chandrotatingthedistributorandclampbracket

asdesired.Retightenretainingbolt.


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






dRetardIndicatorPlate

4and185).

odesofeachsparkplugmustbefull strength

nderallconditionsofoperation.

gapsshouldbecheckedcarefullywitha

5,000miles.Plugs shouldbecheckedina

leanedifnecessary,andregappedwitharound

0.032inch.

MENT.Gapsareburnedopenbythecon-

heat,pressure,andchemicalactionofthefuel

meoxidizedandcorroded,causingincreased

ofcurrent.Thefiring endofthecorebecomes

herdeposits,resultinginmissing becauseof

ghthesedeposits.Plugs developagasleakage

or betweenthecenterelectrodeandcore.

byreasonoftheabove,sparkplugsliterally

acedafter 10,000miles.

SSION.

ngineofanymotorvehicleis running,

atvehicleisa sourceofradiointerference.It

wavesorsignalsthatwillinterferewith any

maybeoperatinginthe vehicleorinitsvicinity.

ldenabletheenemytodeterminetheexact


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




ughtheuseof detectinginstruments.Inview

lehasbeensuppressedto eliminateradiated

es.Radionoisesuppressiononthisvehicleis

ers,condensers,resistor-suppressors,andbonds.

assemblyconsistingofawindingand

onnectedinternallyinametalcaseand mounted

suchamannerthatthecaseis wellgroundedto

ORS.

uppressorisa high-resistanceunitor

yinaninsulatedhousinghavingelectrical

ndsoconstructedasto haveelectricalcontacts

n electricalcontact,ofextremelylow

ormoremetalparts.Flexiblebraidedmetal

rbonding onthisvehicle.

akeprooflockwashersareusedinvaried

bondingandtheyaresecurelyfastenedbybolts

connecting,replacing,orservicingbonds,the

nstalledexactlyasinstalledbythe manu-

ion.

vehicleareas follows:

y30-volt,55-ampere.Mountedonthe

y30-volt,10-ampere.Mountedatdash

rcuit.NOTE:Donotinterchangewith

y30-volt,55-ampere.Connectedtogen-

reterminal.NOTE:Donotinterchangewith

y30-volt,10-ampere.Connectedtogen-

minal.

ity30-volt,55-ampere.Connectedtogen-

terminal.


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






OP

N

T)

QUATE

pplicationsandOperatingConditions


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




TOP(BLOW-BY)

NG

pplicationsandOperatingConditions


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






ORS.Resistorsuppressorsonthisvehicleare

s.Eachsparkplugsuppressorhas aca-

stance.Whendisconnectingsparkplugcables

ngmotion,notby directpull.

mCoilatDistributor.This suppressor

hmsresistance.

ngonthis vehicleareasfollows:

paneltostudon radiatorcore.(Two

urwashersat hoodpanel.)

SideRail,EachSide ofVehicle.

iatorpointand threewashersateachframe

oFrameSideRail.

gcolumnandthree washersatframe

r,toHoodSide Armor,Lower,EachSide

d.Threelockwashersateachbonding

odSidePanel,EachSideofVehicle.

nel andthreewashersatsidepanel.

odTop Panel,EachSideofVehicle.

nel andthreewashersatcenterpanel,

ionCoil.

threewashersatdash.

Dash.

metercableclipandfourwashersat dash

ndwire.

sh.

nd twowashersattachometercableclip

controlconduits.

tHoodSideArmorto Side-Armor-to-

Vehicle.

pringclip(substep(d) ).


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




tHoodSideArmorBracetoFrameSide

chbondingpoint.

sh atCenterPanelLedge.

iredatthe centerpanelbondingpoint

etoDash.

beand threeatcompressionteeatdash.

dionoisesuppressionsystemis essential.

ctiveitemsofthesuppressionsystemmustbe

ausinginterferencetoradioequipmentlocated

ntvehicles,itiscertainthatthesuppression

roperlyanda thoroughandsystematiccheck

e.The enginemustbeinproperconditionof

noisesuppressiondemandsthattheengine

percondition,forthefollowingdeficiencies

esuppressionsystem:

mpropergaps.

aceddistributorbreakerpoints.

ctions.

ns.

ereverpossible,mustbeoflowresistance.

weldedconnection.Thistypeconnectionis

ndesirable.Thebest alternativemustthere-

ORS.

essorsoneata timeand,withaclean

anydirtormoisturethatmaybe present.

pressorcarefullyandreplacethosefoundto

heycannotberepaired.Wheninstallingnew

osefoundingood condition,besuretoforma

TE:Thebestmethodoftestingsuspected

ubstitutingeachof thesuppressorswitha

wntobegood.


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






eagainstcircuitdiagramsandagainst

bove,andassure thatallfiltersare designated

ndastolocation.Thisis importantsincefilter

theirinternalconstruction.Whenchecking

minalconnectionsandwiringmakegoodelec-

ndgroundingboltsshouldbedrawnverytight.

s,andbottoms,ofallfilters andtheirplace-

clemustbe cleanandfreeofpaintor accumu-

ayedbondsshouldbereplaced.When

atmountingsurfacesmustbethoroughly

orrosion.Replaceallpartsexactlyasthey

ersintheirpropersequence.Allbondsmustbe

edortinnedspots mustbecarefullycleaned.

ovethetinningfromthe surfaceandrustand

tiontimingisofutmostimportancein

ce.Inconsequence,theignitiondistributor

til itispositivelyknowntobe inoperative

glight isavailableafinalcheckshould

markthetimingnotchonthecrankshaft

cablefromthe No.1sparkplugand

htto thesparkplugandthe otherleadto

titrun atidlingspeedofapproximately

edirecting.thelightflash atthecrankshaft

ositionof thechalk-markednotchinrelation

ggearcover.Thenotchandthe pointer

eofthe flash(stroboscopiceffect).Ifthey

tributoradvancearmclampscrewandadvance

semaybe.

orwidensout,it isanindicationofa

kinggovernorweights,weakgovernorweight

contactadjustmentorexcessivewearinthe

edifficultyshouldbeinvestigatedandreported


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




ug

vehicleisprovidedwithautomaticcircuit

utomaticresettype.Thesecirc.uitbreakers

dfunctionasfuses.There arefiveofthese

mpere,two10-ampere,andone5-ampere,all

panelinsidethe case.NOTE:Moisturewhich

roublelampsocketsonthe instrumentpanel

circuitbreakers.

ulty,pressacorkinto thereceptacle

locally.

eptionofthe stoplightswitchare

tpanel,andaccesstothemfor servicerequires

panelfromits case.Descriptionofallswitches

onsarecoveredinparagraph132.

gs.165to170,and189).

plugsareusedonthis vehicle.Theirpur-

andsuremeansofcorrosion-freewiringconnec-

arnessesare equippedwiththeseplugs.

rnessdiagramswillindicatetheirposition


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






dlightand

vingLight

e instrumentpanel."UPPERLEFT"and

elowerpairofamphenolplugs.The term

onofthe harnessinsidetheinstrumentpanel

eportionoftheharnesson theenginecom-

ngamphenolplugsisaccomplishedbyun-

randpullingthe maleportion(on"outside"

epanelreceptacleportionmuchas aradio

omasocket.Whenconnectingamphenolplugs,

lllugin themaleend(outerportionof harness)

efemaleportion.Thiswillassureproper

minalboxis mountedonthefloorin-

eftseatcompartments.Thepurposeofthe

onvenienttake-offterminalsfortheradio.


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




D18445

Installed

RKERLIGHTS.

beamheadlightswithsuperimposed

usedonthis vehicle.Bothassembliesare

bly.Installationofablackoutdrivinglighl

utmarkerlightassemblycanonlybemadeor

edbeamheadlightassemblies(fig.187)are

circuitwhiletheblackoutdrivinglight (fig188)

accomplishedbypassingthecurrentthrough,

ecoil.Theblackoutdrivinglightcontacts

ular headlightassembly.

189).Headlightassembliesareremoved

gbracketbyscrewingouttheplunger whichis


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






AKOUTTAIL

TOPLIGHT

ights

brackettoreleasethel ocatingpinfromthe

elightassemblyfrommountingbracket.

edbypushinglightassemblytobottomof

out.Screwlocatingplungerin toconnectpin

Aspecialchain-mountedheadlight

theheadlightbracket.It isusedtoclose the

gwhenthelightsarenoti nposition.

calportionofthislight isofsealedbeam

ntoflens,reflector,andbulbassemblyincase

ovalis accomplishedbyremovingthelower

m,andremovingtherim, whichwillpermit

ofthebody.Disconnectthewiresatthe con-

mbly.Installnewsealedbeamunitandconnect

stallrimand screw.

GHT.Theopticalportionofthislightis

coveredbyashieldandhood assembly.

ector,andbulbisrequiredin caseoffailure

fsealedbeamunit isaccomplishedbyremov-

he baseoftheretainerrim andremoving

ealedunitwithshieldandhood tocomeout

ctwiresatconnectorsandremoveunit.Shield


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




nstalled

he opticalportionofthelightand mustbe

Installsealedbeam unitwithshieldandhood

satconnectors.Installrim andretainerscrew.

IGHTS.Thelensand lensretainerareheld

watthelowerpartof themarkerlightbody.

ndremovelensretainer.Thelampisa Mazda

accomplishedintheconventionalmanner.

KOUTDRIVINGLIGHT.Adjustmentofthe

ctionisaccomplishedthroughtheshiftingofthe

rtingbracket.Loosenthreebracketstolight

dyasrequiredfor desiredbeamprojection

ws.Adjustmentisprovidedforfromfour

talcenterlineofthe lighttotwodegreesabove


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






alled

0and191).

lightsareof differenttypes,bothcon-

nsassemblies.

ghtisa combinationblackouttaillight

vicetaillightand stoplight(lowerelement),

rearofthe vehicle.

ightisa combinationblackouttaillight

koutstoplight(lower element)andis

ofthevehicle.


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




ilureoccurineitheroftheseparatesealed

dbyremovingthe tworetainerscrewsand

er.Disconnectthewiringattherear ofthe

placeunit.Installthe wiringattherearof

ndtwo screws.

NTROL(fig.244).

tofthedialbrakecontrolknobonthe

ebrakingeffortofthe electrictrailerbrakes

e systemtocompensateforchangingloads

gwearofthevehiclewillnecessitatean

akingeffort.Increaseonthe trailerisobtained

edto"HEAVY"andthispositionis required

ad.Approximatelyone-halftheeffectisob-

s turnedto"LIGHT."Adjustforoperation

ment.Forremovalandinstallationin-

32.Replacementrequiresremovalofinstru-

highandlownote) vibratorhornsare

theenginesideof thedashbelowtheair

o installedabovethehornmounting.The

batteryconnection,the"S"terminalisforthe

e"H"terminalisforthe hornconnections.


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






nt107

9

93and194).

eengineinthisvehicleis 4-cycle,

d-valvetype.Theengineserialnumberis

eftfrontsidejust belowthecylinderhead.

omfronttorear,as viewedfromthefrontend,

nisclockwise.Theweightoftheengineassembly

ounds.

50-B

at2,600rpm)143

,250Ib

1/2qt

tside


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




Leftsidecenter

mrearofpan

0to15

40to45

filterbase

31qt

r

ner

Products"Model4775-DX.

serialnumbersbelow3635.."Dole"145

serialnumbers3635.andlater."Dole"

s.

my"Model000790,gearreductiontype

Remy"Model1117308,beltdriven,shunt

-Remy"Model1115079,oilimmersed

-Remy"Model1110161,fullautomatic

pion"ModelJ-10Com.

elGR-11558,TypeAJ,combination

ModelF349X3.

"Model63-AW-14R,updraft.


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






WARNINGUNIT

HER

ENDINGUNIT

ccessories— Rig/itSide


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


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


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son"Model9241,oilbathtype.

."

"dualcartridgetype.

TT,singleplate.

NGS.US-969-XR-#1.

r."Donaldson"Model2XC-277.

alve."Donaldson"ModelV4-16.

orrectamalfunctionorfaultin anengine,

dunderstandthefundamentalprinciplesof

zeandidentifyfundamentaltroublesymptoms,

systematicprocedureofdiagnosistoelimi-

kofahit-or-misssearchfor thedifficulty.The

ryforanenginetooperateinclude:cranking;

gnition;exhaust;properlubricationandcool-

nts.Symptomswithinthescopeofthispublica-

ollowing:

emedy

RefertosectionXVI.

gReplaceunit(par.130).

prop-Replaceunit(par.128).

(par. 129).

rcleaner(par.131).

rtoparagraph75.

eplacethermostat

Tuneupengine(par.114).

.Adjustvalves(par.111).

heckandtightenconnections.

acemanifoldgaskets(par.109).


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




.

min

s.

80).

.79).

78).

TION.

gradefor

c.V).

bayonet

28).

als.

-

mp.

t.

grade

L"on

0).

132).

NDSPARKKNOCK.

s.

acture.

ailure.

timing

30).

nnel.

nnel.

nnel.


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






E.

.

ry.

ection.

Investi-

kcase

ource

r.112).

par.111).

y

tion.

1).

parkplugs

91).

E.

djust-Adjustidleadjustment(par.130).

regap,orreplacesparkplugs

ad-Adjustvalveclearance(par.111).

ckandcorrectignitiontiming

LACEMENT.

chSCREWDRIVER

ox,Vz-in.

WRENCH,end,3/8-in.

-ia


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




ENCH,socket,9/16-in.

ENCH,socket,3/4-in.

ENCH,sparkplug

end,%6-in.

wsatbothfrontandrear endofhoodtop

dstheradiobondingstrap totheradiator.Re-

EM.

ghtof radiator.

CASEBREATHERLINE.

thervacuumlineatoil fillerpipe.

ATORADJUSTINGSTRAP.

neratoradjustingstrap atwaterpump.

S.

h-tensioncablesusingatwistingmotion

freespringsfromterminals.Removespark

ndspeciallockwasherfromcoilmounting

Removecoil.

PUMPATHEAD.

ndwashersholdingwaterpumptocylinder

WATEROUTLET(UPPER)TORADIATOR.

ndwashersholdingwateroutlettocylinder

CASEBREATHERVACUUMLINEATMANI-


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






umlineatmanifold.

UMLINETOFUELANDVACUUMPUMP.

ofuelpumpatmanifold.

UMLINETOBRAKECHECKVALVE.

ocheckvalveatmanifold.

EANERELBOWATAIRCLEANER.

ndwashersholdingaircleanerelbowtoair

EANERELBOWATCARBURETOR

cleanerelbowatcarburetor.Disconnect

TTLECONTROLWIRE.

olwireatcarburetorbylooseningclampscrew.

ECONTROLWIRE.

dingchokecontrolwireatcarburetor.Dis-

ERATORCONTROLATCARBURETOR.

pull-backspringfrommanifoldextension.Re-

leratorcontrolrodatcarburetor.Disconnect

LINELINEATCARBURETOR.

buretor.

R

hersfromcarburetormountingscrewsat

etorandinsulatoradapter.

ASSEMBLY.

chWRENCH,socket,%6-in.


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




rArmCover— Removal

washersfromintakeandexhaustmanifold

oldassemblyandgaskets.

KERARMCOVER(fig.195).

enutsfromvalverockerarmcover.Remove

KERARMCOVERSUPPORTS(fig.196).

erarmcoversupportscrews.

MBRACKETCAPSCREWS(fig.197).

WRENCH,socket,%6-in.

ch

acketcapscrewsholdingbracketstocylinder

tis drilledtoprovideoilfeed torockerarms

KERARMASSEMBLYINTwoSECTIONS,

ALF(fig.199).

0).

EADCAPSCREWS(fig.201).


inder-head-to-cylinder-blockcapscrewsand

EADANDGASKET(fig.202).


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






ods— Removal

OLWIRECONDUITATCARBURETOR.

TROLATCARBURETOR.

ELBOWATAIRCLEANER.

ELBOWATCARBURETOR.

OBRAKECHECKVALVEATMANI-

CUUMLINETOMANIFOLD.

EATHERVACUUMLINEATMANIFOLD.

dCapScrews— Removal


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




d— Removal

ATEROUTLET(UPPER)TOCYLINDER

MPTOCYLINDERHEAD.

EBREATHERVACUUMLINEATOILFILLER

IL.

ockwashersin theiroriginalsequence.

veStemClearance


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






GSANDCONNECTHIGH-TENSIONCABLES.

ORADJUSTINGSTRAPTOWATERPUMP.

.79).

TEM.

ERTURNINGENGINGOVERBYHANDTO

EROCKERARMSHAVEAMPLECLEARANCEAT

TTAINEDOPERATINGTEMPERATUREOF

TIGHTENCYLINDERHEADTO77FOOT-

WRENCH.

CLEARANCE(fig.203).

ox,V2-in.

er-armclearanceto0.018inchwithengine

complishedbylooseninglocknutonadjusting

oattainclearanceof0.018inchbetweenrocker

ghtenlocknut.

MVALVECOVERANDGASKET.

rksontheflywheelofthisengine.Timing

shedasoutlinedinparagraph94.Atiming

nkshaftdrivepulleyand anindexingpointer

182).

MENT.

keandexhaustmanifoldsisaccomplished

chWRENCH,end,V2-in.

WRENCH,end,%6-in

-in.

end,3/4-in.

NCH,socket,%6-in.


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




ountingNut— Removal

Carburetor.

hecarburetoranddisconnectfuelline.

ElbowatCarburetor.

cleanerelbowatcarburetoranddisconnect

ElbowatAirCleaner.

ndwashersholdingaircleanerelbowto

eanerelbow.

ntrolWireatCarburetor.


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






old— Removal

clampofthrottlecontrol.Disconnectwire.

trolWireatCarburetor.

clampofchokecontrolwireatcarburetor.

rControlatCarburetor.

ngandremovecotterpinfromaccelerator

datcarburetor.

g.204).

buretormountingscrews.Remove

netoFuelPump.

cuumlinetofuel pumpatmanifold.Discon-

etoCrankcaseBreather.

nkcasebreathervacuumlineatmanifold.


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




oldPortSealRings— Removal

etoBrakeCheckValve.

acuumlinetobrakecheckvalve.Disconnect

anifoldatExhaustPipeFlange.

austmanifoldtoexhaustpipeflange.Dis-

exhaustmanifold.

d.

WRENCH,socket,%(i-in.

ersandtwocapscrewsholdingintake

andtoexhaustmanifold.Removemanifold

gsfromports(fig. 206).

fold.

hersholdingexhaustmanifoldassembly

,assembly(fig.207).

anifoldSections.

holdingmanifoldsections.Separatetwo

ortion(fig.208).

AfterFirstInsertingPort SealRings


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






fold— Removal

d.

sofexhaustmanifold,butdonot tightenthe

foldwithnewgasketsoncylinderheadstuds.

st-ManifoldCapScrews.

o-CyUnder-HeadNuts-

oldSectionClampScrews,

oldatExhaustPipeFlange.

ifold— Disassembly


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




moval

gesealring isinproperpositionbefore

toBrakeCheckValveatManifold.

uelPumpatManifold.

rankcaseBreatheratManifold.

olRodandPull-backSpring-

.

yopen andcontrolbuttonisin against

trol.

tonis inagainstdashandthat throttleis

bowatAirCleaner-

bowatCarburetor.

etightand freefromleaks.

arburetor.

oilpumpis ofgeartypedevelopingpres-

o15poundsat 200to300revolutionsper

f40to 45poundsat1,500to 1,800revolutions

nd screenisoffloattype.Wheneverthe


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






ainingCapScrews— Removal

dfromthe engine,theignitiondistributor

ump installation.

ch

ch

andwashers(fourateachframeside rail)

eoilpan guard.

ndremoveoilcoolerplugat bottomof

rombottomof oilpan.


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




emoval

oseConnections.

moilcoolerinletandoutlethose connec-

9).

chWRENCH,socket,n/1(i-in.

WRENCH,socket,s/8-in.

washersfromfrontendof oilpanscrews.

essnuts)andelevencapscrewswithnuts

eoilpanandgasket.

10).

ndlockwashersholdingoilpumpto case.

ket(fig.211).

oat)(fig.212).

movefloatassembly.

Pump.

einstallationofpumpandnewgasket

et.


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






— Removal

e,InletandOutlet.

butor(par. 114).

valvehasaheaddiameterof 2*/»inches,

ch,and avalvefaceangleof15 degrees.

addiameterof 13%4inches,astemdiameter

aceangle of45degrees.Thevalvesare

thecamshaftwhichin turnoperatevalve

sactuatevalverockerarmswhichopen and

Adjustments.

mclearanceis 0.018inch,asmeasured

enginerunning,andwithengineatnormal


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




rArmCover— Removal

Valveadjustmentrequirestheremoval

mpartmentcoverandisaccomplishedas

6-in.

end,V2-in.

mcover(fig.213).

omvalverockerarmcover.Removecover.

.

«-in.

g,loosenvalverockerarm locknutand

stingscrewsuntil0.018-inchclearanceis

armandvalvestemend.Tightenlocknut

cover.

ot presentbetweencover,covergasket,


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






ValveSpringsforValve— Removal

T.

uiresremovaloftheenginecylinderhead

drainingofthecoolingsystem,andi saccom-

uipmentasrequiredforcylinderhead

lvespringcompressor.

.

(1)to(25).

3).

g

ndremovevalvelocksfromretainers.Num-

romwhichitisremovedso itmaybereturned

veinnerandoutervalvesprings.Remove

fromcombustionchambers.Cleancarbon


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




s— Installation

ationofpoorseatingcanbe returnedto

givingindicationofpoorseating should

.215).

espringsovervalve stemwithclosed

tsnearest headofvalve.Placevalvelock

ressspringandinstall locks.

dGasket.

side"THISSIDE OUT"towardthetop.

ar.107 h(26)to(53) ).

ylinderheadisremoved,thecombustion

edofcarbonaccumulation.

emotorblockshowingcarbonshould

ofpistons shouldalsobescrapedclean


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






arbonfromTopofPiston

nthecombustionchambersofthecylin-

witha scraper(fig.217)orcarboncleaning

ricdrill.

arbonfromCylinderHead


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




veStemGuides

ved,accumulatedcarboncanbereadily

scanbecleaned,usingasuitable valveguide

pisaccomplished,atestof theengine

ade,sinceexcessivelyunevencompressionin

essfultuningimpossible.Recommendedtune-

orpropersizeandheatrange,fouled

apsettings(par.92).

NCABLES.Inspectgroundstrapand

onwiring.Terminalsmustbetightand clean


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






tpointsforevidenceofpittingorburning;

nspectcapforcracksandpittedposts;check

eightsandmovements;checkcondenser

rcleaner;checkforleaks;adjustcar-

essary;checkconnectionofcontrols

timingwithaneon timinglampto

s firinginaccordancewiththetiming

vepulleyandtimingpointer onthegear

ENT.

uiresdrainingofthe coolingsystemand

chWRENCH,end,1V8-in.

WRENCH,socket,%(i-in.

V8-in.

socket,3/4-in.

ENCH,socket,7/8-in.

chWRENCH,socket,Y4-in.


eoilpan guard.

ndremoveoilcoolerplugat bottomof

rombottomof oilpan;drainoil.

oseConnections.

oilcoolerhoseconnectionsatpan.Dis-


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




wingCranJccaseVentilatorand

LeftSide

washersfromfrontendof oilpanscrews.

essnuts)andelevencapscrewswithnuts

eoilpanandgasket.

ket.

eConnections.

pacity31Quarts).

konOil LevelBayonetGage

TOR(fig.219).

sobtainedbydrawingoffcrankcasefumes

gtheminto theintakemanifoldofthe


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






eteringValve— Installation

umlineisconnectedattheintakemani-

ylinderhead totheoilfiller pipeontheleft

pointthevacuumlineattachestoa vacuum

seofwhichisto controlthevacuumto

bjected,particularlyatidleenginespeeds.

ompartmentisventilatedbymeansofan

nthe valverockerarmcover.

Noadjustmentisnecessaryorprovided

or.However,themeteringvalveshouldbe

proximately10,000milesforcleaning.Dis-

nvarnishremoverandreassemble.When

thearrowmustpointupward(fig.220).

r.Thecylinderheadbreathershould

ngsurethatoilin thecupisat properlevel.

conditions,thisattentionshouldbeaccorded

rtisnoted,the breathershouldberemoved


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




wingOilCoolerUnit— Installed

,disassembledandcleaned,refilledand

icatingoiltemperatureiscontrolledto

meansofanoilcoolerunit locatedinthe

ediumis circulatedthroughthiscooler

Thehose connectionsarelocatedonthe

ne.Theupper hoseisthecoolerinlet,and the

nt.Replacementoftheoil coolerunititself

smanual.Replacementofthecompleteoil

blyshouldbe madeasoutlinedinpara-

NT.

ch

ragraph76l>.


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






METERDRIVESHAFT.

veshaftat distributorhousingbyunscrew-

YCABLEATBATTERY.

randdisconnectnegativebatterycable

ATGENERATOR.

end,9/16-in.

atureterminalandfieldterminalsofgen-

osuppressionfilter.Disconnectgenerator-to-

enerator.

ATCOIL.

iresattopofcoil.

ATSTARTINGMOTOR.

ENCH,end,s/8-in.

andammetercablesatstarterterminal.

n-to-starter-switchwireatstarterterminal.

MLINETOWINDSHIELDWIPERSATFUEL.

uumlinetowindshieldwipersatfuelpump.

EFROMFUELTANKSATFUELPUMP.

ENCH,end,s/8-m.

ves.Disconnectfuellineat fuelpump.

RTOCARBURETORELBOW.

end,V2-in.

owatcarburetor.Removefourcapscrews

r cleaner.Removeaircleanerelbow.

UMLINETOBRAKECHECKVALVE.

acuumlinetobrakecheckvalve.Disconnect.

TTLECONTROLANDCHOKECONTROL,

arburetorholdingthrottleandchokecontrol


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




ERATORCONTROLROD.

celeratorcontrolrodatcarburetor.Dis-

ARD.



eguard.

PE.

ENCH,end,3/4-in.

boltsfrom exhaustpipetomanifoldflange.

clampboltnutatexhaustpipe connectionto

pipe.

MISSIONATENGINEFLYWHEELHOUSING.

chWRENCH,socket,"1(1-in.

wsandwashersfromengineflywheelhousing

g.

ARMOUNTINGCAPSCREWS.

chWRENCH,end,7/8-in.

WRENCH,socket,1-in.

eateachside ofengine)mountingcap

ws.

GINE.

einsucha mannerthatitwillbe blocked

avoidtheirdamageandinsuchmannerthat

hadonengine.

TAXLEBRAKETUBEATFRONTCROSS

RT.

ENCH,end,1-in.

ketubeatrearside ofenginefrontsupport

beconnectionatfrontsupport.

ONTMOUNTINGSUPPORTBOLTS,NUTS,


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






nginefromChassis

ndwashers(twoateachend offrontsup-

eenginesupportedbyslingbeforeremoving

OMCHASSIS(fig.222).

voiddamagetopartsand topreventstrain

onmaindrive gearshaft.Removeenginefrom


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




ENTENGINEINCHASSIS.

eandattachhoistto sling.Raiseandguideen-

toassureconnectionofclutchsplinesand

ONTANDREARMOUNTINGS.

LEBRAKETUBEATENGINESUPPORTARM.

IONBELLHOUSINGTOENGINEFLYWHEEL

PEANDCONNECTATFRONTANDREAR.

ARD.

TOR,THROTTLE,ANDCHOKECONTROLS.

LINEATBRAKECHECKVALVE.

ERELBOWATAIRCLEANERANDATCAR-

LINETOWINDSHIELDWIPERSATFUEL

FROMFUELTANKSATFUELPUMP.

CABLE,AMMETERCABLE,ANDSTARTER

GMOTOR.

SONWIRESATCOIL.

TARMATUREANDFIELDTERMINALSOF

nfilterwires.

EERDRIVESHAFTATDISTRIBUTORHOUS-

par.76c(1)to(15) ).

BATTERYCABLEATBATTERY.

par.66).


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






21and222).

sistsofanexhaustpipe fromtheengine

nexhausttailpipe.

stbekeptcleanedout sinceacloggedsys-

ngineperformance.Exhaustpipeflangebolts

mesasmustexhaustpipe tomufflerclamp

dangerousleaks.

er.Wherethisconditionexists,replace

cemuffler.

asketsandBaffles.Tightenorreplace.

ceifthe metalisopened.

t

S.

ldbereplacedwheneverleaksdevelop.

chWRENCH,end,!/16-in.

WRENCH,end,3/4-in.

RENCH,socket,3/4-in.


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




nstalled

r.

onofexhaustpipeand muffler.

haustpipeflangenuts.

chWRENCH,end,3/4-in.


emovethreelocknuts andthreeflange

eflange.

dtofreefrommufflerand removepipe

austpipe.

ealringbetweenexhaustpipeandmanifold.

ndlocknuts.

t muffler.


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






ExhaustPipe— Installed


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




mpbolt.

ofmufflerholding exhaustpipe.

bolt.

ltatrear ofmuffler.

tbracketclampbolt.

ipesupportingbracket.

andfreefrommuffler.Movemufflertoward

flerandinsertexhaustpipe.

ler.

ustpipeclampbolt.

peclampbolt.

clampbolt.

ENCH,end,%fi-in.

peclampbolt.

pipeat muffler.

tbracketclampbolt.

ipesupport bracket.

pipe.

bracketclampbolt.

peclampbolt.


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






stsofreenforcedchannelsectionsandre-

OKS(figs.225and226).

videdatthefront bytowinghooks,one

ychaineyeboltsarelocatedatthe, rearof

mperettes.Apintlehookis providedatthe

eHalf-trackMSandM9A1Vehicles

atthefrontofthe frame.Itspurposeisto

ndBumperettes— Installed


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




— Installed

alled


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






TaperPins— Removal

ughditchesandholes.Twocompression

llersupports,actas shockabsorbers.The

eequippedwithwinchesasdescribedin

ouldtherollerbecomedamaged,itcan

erpins(fig. 228).

meachendof rollershaft,usinghammer


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




gRollerSprings

s.

orlargeC-clamps,compressrollersprings

ft (fig.229).

upport.Removerollershaftfrom roller

veJack.

ngsandRemove.

r SupportstoReplacementRollerwith


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




LES(IHC)(PERSONNELCARRIERMS,CARM9A1.


— Removal

non Jacks.

LineupTaperPinHoles.

ks.


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




8

31).

sistsoftwomain fueltanks,fuellines,

ve,afuel andvacuumpump,fuelfilter,car-

econtrols,andenginemanifold.Flexible

fromthetankstotheanchoredfuellines and

the fuelpumptopreventbreakagefrom

ake-offfromeachofthetanksisthrough

behindthedriver'sseat whereonetankor

forthe supplyoffuel.

cityofthesystemis60gallons.

mightbeattributedtothe air-fuelsystem

yignition.Beforeattemptinganybutthe

mentstotheair-fuelsystem,checktheignition

5).

shouldbe checkedregularly.Iffuel

stick.If theenginehasstoppedbyreason

romemptytanks,thefuelsupplyshould

inecrankedforabout15 secondswiththe

kepulledout.This willdrawfuelintothe

tor.

doesnotstart,thereasonmaybe

elsystem.Thiswillbe observedinthefuel

nthe filtersettlingbowl.Cleanthestrainers


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




ES(IHC) (PERSONNELCARRIERM5,CAR M9A1.



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




andemptythesettlingbowls.Drainfuel

hefuelflowsfreeofimpurities.Disconnect

blowoutwithair. (Condensationofwater

emaybeinpart avoidedbykeepingfuel

heatthepartswithboilingwaterbefore

tanksformsfrom thecondensationofmois-

wnintothetank asthefuelis used.It

yincold,dampweatherandwhenthetanks

.

eofthechokeduringcrankingresults

dpreventsstarting.A noticeableodorof

carburetorwill usuallyindicateaflooded

odedcondition,pushinthechoke,closethe

rottlewide(donot pump)andcrankthe

ds.Turnon ignition,andwhentheengine

ttleanddo notusethechokeagainunless

enginefromstalling.Ifthecarburetorstill

movethecoverofthefloatchamberandclean

ethecarburetor(par.130).

theenginewill notstartaftercranking

echokepulledoutand whileignitionissatis-

maynotbeclosingcompletely.Examinethe

etorwhenthechokebuttonis pulledout

snotclosed,changethesettingofthe choke

oses.

retor.Ifa hissingsoundisnotheard

nkingwiththechokeout,a lackofgasoline

or.Testby disconnectingthefuelsupply

onturnedoff,crankmotor.Ifthere isnot

thefuelline,thetrouble mustbetraced

em.Ifthe flowoffuelisample,the troubleis

nit shouldbereplaced(par.130).

ns irregularlyatidlingspeed,orblack

ust,itindicatesthat thecarburetormixture

shellor porcelainnearthepointsofthe

ooricha mixture.Ifawarmenginebackfires

cceleratingorwhenthevehicleis running

elmixturemaybe toolean.Sparkplugs

n theporcelainalsoindicatethiscondition.

tburningindicatesaleanmixtureor the

ustthecarburetortoremedythe complaint


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






peedmixtureusing avacuumgage(par.

uiresadifferentadjustmentfromwinter

ausesa richmixtureandaloss ofpower.

efuelline atthecarburetor.Withthe

heengine.Ifno fuelappears,thetrouble

pump,orstrainers.Examinethetubingfor

strainerbowlforsediment.Cleanif neces-

assureatightand leakproofconnection.Dis-

hetank atthefuelpump.Applyair tofuel

el lineandflow.Ifthe fuellineisopen and

thepumpis defectiveandmustbereplaced

eat thediaphragm,tightenthecover

curely.Sometimesthereappearstobealeak

stheleakactuallyexistsatone ofthepipe

ownaroundthediaphragmflange.Leakage

mpbodyventhole,awornorpunctured

gmnut,ordefectivepullrodrequiresreplace-

etedisassemblyoffuelpumpsis notauthor-

ar.128).

histlingsoundatthemanifoldindicates

arengineperformanceatidlingspeedgen-

gineis running,squirtoilaroundtheinlet

hepointwherethewhistling willcease.

undtheyshouldbe replaced(par.109).Ex-

tthewindshieldwiperconnections,brake

essoriesforairleaks.Replacedefectivehose

nhoseconnections.

stickinglinkageandfrayedordefective

operationofacceleratorandcontrolsbecomes

nksof30gallons capacityeacharepro-

tanksarewithin thebodyandarefurther

ngcovering.Thefillercapsarereadilyacces-

ompartment.Specialscreensareprovided

stbe removedandcleanedoccasionally.The


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




tly closedandthebreathervalveskept

ssedintothebottomofeachtank.Should

lacementofthisplugcausethethreadsto

ultinaloose fit,replaceplugwithaVi-inch

squarehead.

Replacement.

end,V2-in.

RENCH,end,%6-in.

ENCH,end,s/8-in.

gthedrain plugfromthefueltanksump

e fueltank.Thisdrainplugis accessible

ersideofthe trackhousing.

ectionShield.

end,'/(i-in.

ectionshieldslottedscrews,andnutsand

onnection.

ectionoffueltank.

datTop.

mtopoffueltankshield.

datBottom.

crewnutsfromthebottomofthefuel

oldscrewsatunder sideoftrackhousing.

ap.

ewwhichholdsgroundstrap.Thisis

sideoftrackhousing.


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







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




uumPump— Installed

SenderWireatTank.

unitsenderwirefromtop oftank.

elTank,

derWire.

,

eldatBottom,

eldatTop.

nections,

onShield,

Accuracy.


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






AdapterCapScrews— Removal

PUMP(figs.232and233).

nfromthesupply tanksandpumpedto

nical,diaphragm-type,combinationfueland

achedtothecrankcaseandisoperatedby

camshaft.Theupperelementofthe pump

thelowerelementis thepumpsection.The

oosterinthe operationofthewindshield

enthe inletvacuumatthemanifoldis

Maintenance.Thepumprequiresno

peofthistext.Workingparts arelubricated

omesthroughthe openinginthecrankcase.

ectorfittingsshouldbecheckedregularly


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




Removal

ainingthediaphragmsmustbekepttight

ks,andthemountingscrewsmustbetight.

mayberemovedforcleaningandfor draining.

Replacement.Whenthefuelpumpfails

uldbereplaced.Replacementprocedureisas

omFuelTanktoFuel PumpatPump.

ENCH,end,%-in.

pumpafter closingshut-offvalve.

CarburetoratFuelPump.

buretoratfuelpump.


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






anktaseCapScrews— Removal

nesatFuelPump.

atfuelpumptomanifoldandto wind-

AdapterMountingCapScrews(fig.234).

oldingfuelpumptoadapterat crankcase.

.235).

pterCapScrews(fig.236).

oldingfuelpumpadaptertocrankcase.

Plunger(fig.237).

lPump,Adapter,andRetainingCap


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




dapter— Removal

buretoratFuel Pump.

elTanksat Pump.

atFuelPump.

s providedbetweenthefuelpumpand

or.Itspurposeis toprovideasettlingbowl

teringisaccomplishedthroughaseriesof

efuelfiltercanbeeasily cleanedasfol-

ThumbscrewandRemoveBowlfrom

ent.

gers(fig.239).


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






wl— Removal

ment— Removal


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




RFUELFILTER

— Installed

Casket.

t.Cleanfilteringelementdisksin

.

wlGasket.

Tighten Thumbscrew.

t.

Filterat Filter.

r.


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






rburetorIdleScrew

CONDARYADJUSTMENTRAPD18493

vernor— PrimaryAdjustment


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




T

vernor— SecondaryAdjustment

retor.

elFilter.

elFilter.

0).

etorisanupdraftunit ofdouble-venturi

onstructionwhichmaintainsaproperdepres-

take andthefuelbowl.Thecarburetor

elocitytypegovernor.Onlytheidlingadjust-

et areadjustable.

eandAdjustment.Thecarburetorneeds

properlyinstalled.Topreventairleaks,

bemadefrequentlytoassureallconnections

eshouldbe atoperatingtemperature

foreadjustingidlespeedof carburetor.

deinconjunctionwithavacuumgage.Con-

foldandadjustidleadjustmentscrewto give

ngatapproximately350to400 revolutions


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





ountingNuts— Removal

econtrolshouldbecheckedtoseethat

nwhenthe chokecontrolbuttonisin

nel,andfullyclosedwhenthe buttonispulled

yremovingairconnectionelbowatcar-

driveratchokelever.

ENT.Therearetwoadjustmentscrewsfor

perscrew)andsecondary(lowerscrew)

andonlya screwdriverandapairofpliers

pperScrew)(fig.242).

ndsealwire.

adjustmentscrewclockwise.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



— Installed

adjustmentscrewcounterclockwise.

dseal.

t(LowerScrew).

itisdesiredto lowerthegovernedspeedto

5milesperhour,it maybenecessaryto:

tmentscrew(fig.243).Turnsecondary

byturningcounterclockwiseone-halfturnat


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



LES(IHC)(PERSONNELCARRIERMS,CARM9A1


died.Ifthegovernordoesnot regulatethe

nough,turntheadjustmentscrewclockwise

tilsurgeresultsandthen one-halfturncoun-

surge.

sealwire.

ent.Whenthecarburetororgovernorfails

sto respondtoadjustments,replacement

-in.

end,s/8-in.

ElbowatCarburetor.

arburetor.

kage.

andthrottlecontrollinkageatcarburetor.

Carburetor.

terat carburetor.

g.244).

carburetortomanifold.Removecarburetor

sket.

sulator.

ilterto Carburetor,

rottleControlLinkage,

owatCarburetor.

emperatureandadjustidlespeed asout-

1),above.

essary.

bparagraphb(3),above.


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




Seetionalized


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






45and246).

nerisof oilbathtypeandis dash

alsoprovidedtopermitdrawingcoolair from

andshuttingoffthewarmair inletfromthe

ce.Theoilandsludgelevelin thecup

onceaweek,preferablydaily,bylooseningthe

ptonote theoillevelin referencetotheoil

umulationofdirtshouldnotexceedl/2inch.

nedatindicatinglevel beadincup.The

dthoroughlyandrefilledwithfreshoil each

edandrefilled.Thecapacityofthe oilreser-

artothatin thecrankcaseshouldbeusedin

heair cleanershouldberemovedfromthe

dinkerosene,andblownout.Theforegoingin-

faircleanerwhenconditionsarenormal.

argequantitiesofdust anddirt,therecom-

begivenatmorefrequentintervals.NOTE:

e engineisrunning.

nt.Whenitisdesirableto removeand

bly,proceedasfollows:

6-in.

tterControl.

ElbowatCarburetor.

owatcarburetor.

mpMountingScrews.

gclamps.

MountingBands-

mbly.

tMountingClamps.

bowatCarburetor-

rControl.


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




ES

vingLightSwitchDetails

KET.Twoinspectionlampsocketsarepro-

elampcanbe connected.

Replacement.

ocket.

nutandlockwasher.Removesocket.

ketandretainingnutandwasher.

LIGHTSWITCH(fig.249).Theblackout

opositions.A thumbbuttonmustbede-

ackon knobtooperatethedrivinglight.

SwitchReplacement.

ngknobtoswitch.Unscrewknob.


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






ITBREAKERS

P*APD18497

viceLightSwitchDetails

witch.

rofswitch.

ngbushing.

ountingbushingtoswitch.Removemount-

pressingin onreleasebutton.

washer.Removeswitch.

ch,mountingbushing,retainingnut,and

gscrew.

screw.

h.


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




ES

anel— Rear

WITCH(fig.250).Theblackoutlightswitch

hts,taillights,andmarkerlightshasfour posi-

sttheinstrumentpanel alllightsare"OFF."

ackto thefirstpositionwhichwilloperate

epressingthethumbbuttonpermitspulling

position wheretheserviceheadandtaillights

will operate.Pullingtheswitchbackone

nlystop lightstooperate.

Replacement.

witch.

romswitch.(Forfurtherdescriptionofwir-

onXVI.)

llknob.Unscrewandremovepullknob.


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






olassembly.

romlock-outcontrolhousing.Remove

gnut.Unscrewlocknutholdingswitchto

washer.Removeswitch.

ningnut.

ssembly.

.

hestartingswitchconnectsthecircuitto

pushtypebuttonswitch.

ement.

ckofswitch.

mfrontofinstrumentpanel.Removeswitch,

chandretainingnut.

.

.

gesdescribedinparagraph132 aremounted

rviceoftheseunits requiresliftingpanelfrom

omplishedbyremovalofonescrewateachend

htscrewsat thecenterportionofthepanel

tingthefouramphenolplugsfrom therear.

ometerandtachometerdriveshaftsattherear

ismountedonthewindshielddivider

verticallyinlinewiththevehicle.

assmaybeadjustedorcompensatedby

ewdriver.Ascrewdrivermightbemagnetic.

(Determinedirectionsbya reliable

hevehicle.)Turnthelowercompensatorscrew


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




ES

43760RAPD36643

untingandAdjustment

r asisnecessarytomakethe dialread

nofarther.(Ifthedialreads "SOUTH"

ubstep(2),below,tocorrectit.)

urnthe uppercompensatorscrewslot

tomakethedial read"EAST"andnofar-

If necessary,turnthelowercompen-

-S)slightlyto makethedialread"SOUTH."

f necessary,turntheuppercompensator

ghtlytomakethe dialread"WEST."

beclosedwhenadjustingcompassand

neshouldberunning,orbetter still,ifpractical,

tion whenadjustmentsaremade,sincethe

edometerandtachometeraffectcompassread-

ouldbein astraight-aheadposition.


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






ce136

nt137

3).

mthetransfercase totherearaxleand

sofpropellerdriveshaftsequippedwithuni-

corporatestwouniversaljointsanda slip

ovidedontheuniversalsfor attachingthe

mpanionflangesofthetransfercase,front

AINTENANCE.

tsfor wearandfordefectivegreaseseals.

ropellershaftendsmustbein thesameplane.

shafts.Replacetheslipjointmemberswhen

etocausepropellershaftvibration.

EPLACEMENT.

respectivepropellershaftspermitsre-

andtransfercase,frontaxle,or rearaxle,with-

mblyat theoppositeendofthe shaft.Anew

aseofbreakage.Installflangeboltswithnew

boltsevenly,alternately,andsecurely.

end,%0-in.( 2)

n.

FRONTAXLE.

end,s/8-in.

e.Removefourboltsfrompropeller


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




erShaft— Installed

companionflangeatfrontaxleafterbending

ndtoFloor.Fastenbearings toyoke

lling off.

ofArrowsonFrontPropellerShaft


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






ngRearPropellerShaftatRearAxle

Case.Removefourboltsfrompropeller

onflangeattransfercaseafterbendinglocking

ndtoFloor.Fastenbearings toyoke

lling off.

opellerShaftEndatTransferCase.Use

lockplates.

dat FrontAxle.Usenewlockwashers

TION:Arrowonsplineofshaftmustline up

eve.

REARAXLE.

SixCap ScrewsHoldingtheCompanion

wocapscrewswill remaininplace,holding

panionflangeatthetransmission.

mPropellerShaftBearingsatRearAxle

oFloor.Fastenbearingstoyokewith

off.


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




ofArrowsonRearPropellerShaft

nd atBrakeDisk.

ndat RearAxle.

yokesmustbealinedinaccordancewith


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






SORBERS

djustment140

pringsare usedatthefrontaxle.They

nd andmountedinshacklesattherear end.

eactingshockabsorbersareusedto

rings.The shockabsorbermechanismis

connectinglinksareattachedtothefront

gs.

er.

.

.141 a).

r.140b).

par.141b).


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




SORBERS

andShockAbsorber— Installed

er.

140b).

r.140b)

par.141b)

berAdjustment


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





U-Bolt— Removal

Pin— Removal


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



SORBERS

Pin— Removal

CEANDADJUSTMENT.

ltswhichfastenthe springstotheaxles

arlyandkepttight.LooseU-boltsallowthe

kingof theleavesandimproperalinementof

beinspectedforbrokenleavesand forevi-

adingofthe springs.

8).Thevalveadjustmentsontheshock

eatthefactoryareexpectedtomeetthe de-

lrequirements.Adjustmentscanbemade,how-

eratingconditions.Toadjusttheshockab-

sm,thevalveindicatorontheoutsideofthe

creasetheresistanceofthe shockabsorber,

ckwise.Theindicatorshouldnotbeturned

ninchat atimeuntilsatisfactorycontrolis

stthe shoulderstops.Fluidlevelinshockab-

hlevelplug onhousing.Tofill,removefiller

e,andmovelinkup anddownslowlywhile

bsorberfluid.Replaceplugandconnectlink


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






— Removal

NT.

eplacedas follows:

1-in.

(fig.259).

nutsandwashers.RemoveU-bolts.

PinRetainerBolt.

herfromshacklepinretainerbolt.Remove


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




SORBERS

gShockAbsorberLink

Pin(fig.260).

ackle.

nRetainerBolts.

sfrombothspringpin retainerbolts.Remove

n(fig.261).

ompinretainer.

2).

ring.

nretainerandinstall bolts,washers,and

ackle,installshacklepinretainerbolt,lock


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






berMountingBolls— Removal

Nuts

kabsorberscanbereplacedasfollows:

WRENCH,end,3/4-in.

H,socket,3/4-in.

orberLinkatSpringSeat(fig.263).

omconnectorlinkatspringseat.

erMountingBolts(fig.264).


sfromtwoboltsmountingshockabsorberto

sorber.

ockAbsorberandRetainingBoltson

erConnectingLinkonSpringSeat.

NutandWasher.


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




aintenanceandadjustments

placement

Thesteering gearisofa camandtwin-

ket-mountedtothechassisframeandthe

ash bracket.Thecam,lever,andshaftare

ewithfull provisionforadjustmentofboth

eweightoftheassemblyis 40pounds.

isoftubulartype,havingadjustable

ng-loaded.Attheaxleend,the springisbe-

endplug.Atthesteeringgear endofthedrag

theballseatandthe frontofthedraglink.

y aprotectiveboot.

eringwheelisof three-spokedesignand

SSTHAN30MILESPERHOUR).

ose.

n.

tion.

nnel.

max.).

).

).


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






ar— Installed

ovE35MILESPERHOUR).

ve.

heels.

tion.

ounds

nnel.

a).

b or

).

nnel.

nnel.

nds

).


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




G.

worn.

se.

pe.

t.

y.

nds

portto

n.

nnel.

nnel.

.

nnel.

a).

nnel.

max.).

).

nnel.

nnel.

a).

ar.1401>).

EMBLYMAINTENANCEANDAD-

ofsteeringtroublescanbestbe accom-

ngthedraglink fromthesteeringgeararm.

tionofthe sourceoftrouble.Ifdifficultyis

eringgearthroughitsentire range,itisevi-

ustmentorserviceis required.Shouldthe

ctory,attentionmustbedirectedelsewhere.

radjustmentisindicated,theprocedureisas


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






A)8(871

ITION]

r— Sectionalized


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




end,11/1(i-in.

ENCH,end,3/4-in.

tingscrew.

end,3/4-in.

radjustingscrew,locknut,andscrewtofree

ms.

ENCH,end,l%(i-in.

tandloosenfouruppercovercapscrews.

ovalofshims.Acombinationof0.003-,0.010-,

sed.Clipandremoveonethin shimormoreas

y.

capscrews.

ngscrew.

gscrewtoa barelyperceptibledragsothat

edfreely.

shaftadjustingscrew.

end,3/4-in.

dtightenlocknut.

Y.Blacklashofthetaperedcamstuds

elevershaft,andas backlashatthesteering

teeringarm.Adjustmentforlashofthe lever

e steeringgearinthecentralor straight-

ausethegrooveon thegear(fig.266)is cut

amtopreventbindingduring extremeturning

rin thecentralposition(straight-ahead)

ngis done.Donotadjustin otherpositions

otobjectionable.

end,%-in.


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






wlocknut.

end,3/4-in.

ngscrewlocknutwhileholdingadjusting

.

tila veryslightdragisfelt throughthe

whenturningthesteeringwheelslowlyfrom

CAUTION:Thegearmustnot bindatany

dragshouldbefelt.A closeradjustmentwill

ondition,butwilldamageandwearthe steer-

operation.

end,3/4-in.

eventturning,andtightenlocknut securely.

aretightened,teststeeringgearthrough

readjust.

oingcamendplayandlevershaftend

llyallthatare required.Alwaysadjustcam

mpttocurewander,shimmy,orroadshockby

Adjuststeeringgearonlyto removeexcessive

ffnessorbindexistsafter tighteningthe

nelsteeringcolumnsupport,the gearhas

thesteeringcolumnisoutof alinement.The

gin anydirection.Ifmisalinementexistspro-

LUMNSUPPORTBRACKETATINSTRUMENT

ARTORQUEBOLTATFRAMEBRACKET

OLUMNTOINSTRUMENTPANEL.

LTATFRAMEBRACKET.

LUMNSUPPORTBRACKETATINSTRU-


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




RINMID-POSITION(HalfWayBetween

SIN"STRAIGHT-AHEAD"POSITION.In

shouldbeinpositionto connecttosteering

benecessaryto repositionsteeringgeararm

ut.

WRENCH,socket,l3/4-in.

Arm.

m.Donotstrikelevershaft withhammer

m.Withsteering gearinmid-position

head,replacesteeringgeararmon lever

connecttosteeringarmball.Tightenlever

seesubpar.e,below).

DBOOT.

gLinkEnd.

yand ThenBackOffOne-eighthTurn

e.

EMBLYREPLACEMENT.

terminalatbaseof steeringgearhousing.

thpalm ofhandandrotateone-sixth

ressureonhornbutton.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





earColumnTubeSupportatDashPanel

s insteeringwheel.

mof handandrotateone-sixthofa

ure.

aseof steeringgearhousing.

ement.

SCREWDRIVER

WRENCH,socket,l^i6-in.

seesubpar.a,above).

asePlate,

mbaseplate.Removeplateandhorncable.

elNut.

WRENCH,socket,l13/16-in.

utandlockwasher.


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




ockTorqueBoltatFrame

el.

orsteering post,removewheel.

eeringWheel.

ut andWasher.

andHornCable,

aseof SteeringGear.

.

hEnd.

mEachEnd.


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






end.Fromfrontend removeballseatand

ngseat,spring,and ballseat.

mSteeringArmBalls.

agLink.Haveballseats,springseats,

on.

eats,SpringSeats,andSprings.

yandthenbackoffone-eighthturn orto

newcotters.

oots.

ment.

WRENCH,1-in.

^-in.

ClutchPedalSpringsfromSteering

tSteeringGearArm (subpar.c,above).

el(subpar.b,above).

olumnatInstrumentPanel(fig.267).

tinstrumentpanel.

olt(fig.268).

1-in.

tsteeringgearframebracket.

tClampCap(fig.269).

hersfromsteeringgearframebracket

etCap.


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




ameBracketClampCapNuts

loweringassemblytofloor becareful

eeringcolumntube.

eringGeartoPosition.

ap.Donottighten nuts.

.Donot tighten.

tInstrumentPanel.Donottighten.

.Holdsteeringassemblyinnormal posi-

ntpanel.

ousingClampCapNuts.

olt.

InstrumentPanel.

subpar.h,above).

par.c,above).

Thesteeringwheelandcolumncanbe


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






chWRENCH,1-in.

WRENCH,socket,Vt-in.

oltatFrameBracket(fig.268).

t.

ClampCap(fig.269).


nSupportBracketatInstrumentPanel

ountingboltnutsatinstrumentpanel.

DesiredPosition.

ousingClampCap.

lt.

rtBracketBoltsatInstrumentPanel


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




NSFERCASE

nt148

70to272).

nsfercasearebolted togethertoform

theassemblyisboltedtothe engineatthe

l.Thehandbrake ismountedontheleft

d thetransfercaseshiftleversare onthe

sion.Theweightofthetransmissionwith

ds.Thepowertake-offweighs36pounds.

missionincorporatesfourforward

eed.Apowertake-offismountedon theleft-

onon winch-equippedvehicles.

sfercaseisthe unitthroughwhichthe

earedriven,andprovidesanadditional

ectionofthetransmissiongearspeeds.Pro-

ionalengagementordeclutchingofthefront

eldrivecanbe usedwithanyofthe trans-

ocksarenotincorporatedinthetransmission.

areincorporatedinahousingon therearof

thefront axledriveshaftprojectingtherein.

Detailsconcerninggearshiftingare dis-

eillustratedinfigure18.

monabusetowhichatransmissionis sub-

ngof gears.Thisresultsinbrokenshifting

afts,andinternaldamage.Frequentinspec-

e lubricantlevelandthecasegasketsto

akage.Transmissionhangerboltsshouldbe

kepttightened.

gnsoundswhichseemto comefromthe

semayactuallyoriginateinsomeotherpart

athoroughcheckbyactualdrivingshouldbe

lsourceof thenoisebeforeinitiatingany

nthetransmissionortransfercase.Attention


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






nandTransferCase— Installed— RightSide

allytothepropellershaftwhichmayhave

hatmaycausenoise.Other possiblesources

beasfollows.Forthemost part,theircorrec-

opeofthismanual.

l

ain

eeth.

just-

nnel.

VII).

nnel.

nnel.

nnel.

nnel.

nnel.


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




NSFERCASE

nandTransferCase— Installed— LeftSide

LACEMENT.

onandtransfercasearenot removedas

butareaccessiblebyremovingthetunnel

ompartment.

rReplacement.

SCREWDRIVER

%6-in.

atesOverTransmission

nnelplateovertransmission.Removeplate.

ShifterHousingCoverandShiftLever.

WRENCH,socket,%H-in.

kwashersfromstudsin shifterhousing

ket.


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







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




NSFERCASE

HIFTLEVER

FTLEVER

R

ARSHIFTLEVER

nandTransferCase— Removed— LeftSide

ShiftLeverSupportSpringfromCover.

d,twistto releasespringfromholding

ring.

ShiftLever.

eandremovehandle.Liftoffrubbergrom-

roughbottomofhousing.

iftLeverThroughBottomofHousing.


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






rtSpring inCover.

tatCover,

e.

overand ShiftLeveronTransmission,

sand RetainingScrews.

erReplacement.

iftleverretainernut.

shiftlever.

chshiftlinkrod atshiftlever.

EndPins.

veShiftLever.

cer.

ShiftLever,

ftLever,

r.

ShiftLever.

andCotterPin.

dPinandCotterPin atTransferCase

d PinandCotterPinat FrontAxle

moval.

ocketwrench

block


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




NSFERCASE

n.

-in.

7/8-in.

H,Ii/,-in.

H,socket,%6-in.

H,socket,3/4-in.

Hsocket,1-in.

TransferCase.

n.

ombottomoftransmissionandtransfer

oilinto pail.

verTransmission.

nnelplateandscrewsholdingtransfer

Removeplates.

eterCable.

utholdingspeedometerdriveshafttotrans-

ar bearingcap.Removetwocapscrews

ercableclipstotransmissionandremoveclips.

hafttoRearAxle(par.137).

hafttoFrontAxleatTransferCase (par.

ke(par.67).

eShiftandUnder-driveShiftLever

omshiftinglinkrod endpinsatthetrans-

overodendpins.Thiswill allowshifting

eremovalofassembly.

everAssembly.

n.

endpin securingbrakepullrodto brake

rewsandlockwashersholdingbrakelever

Removehandbrakeleverassembly.


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






sMemberBelowTransmission.

uts,andlockwashers(fouronleft sideand

rossmembertoframe,andlowertofloor.

ShifterHousingCoverandShiftLever.

kwashersfromstudsin shifterhousing,

ket.

easeShaftLeverfromClutchLinkage.

endpin holdingreleaseshaftleverto

smission.

transmission,makingcertainthatas-

sling duringremovalinordertoprevent

sionSupportSpringandSpringPressure

ndlockwashersholdingsupportspringand

sion.

onBellHousingfromEngineFlywheel

sandlockwashersholdingtransmission

flywheelbellhousing.

.

wlypush transmissiontowardtherear,

thdrawn,untilthesplinedshaftis freefrom

transmissionin linewhileremoving,in

splinedshaftandclutch.Lowerassembly

n.

dinsubparagraphd,above.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



NSFERCASE

BellHousingHandHoleCoverPlate.

ndwashersholdingbellhousingcover

oPlace.

nsmission,andraiseand guidetransmis-

edshaftinto clutchsplines.

BellHousingtoEngineFlywheelBell

SupportSpringandSpringPressure

nsmission.

eShaftLevertoClutchLinkage.

fterHousingCoverandShift Lever.

MemberBelowTransmission.

rAssemblyatTransferCase.

ftandUnder-driveShiftLeverLinks.

eto RearAxle(sec.XI).

toFrontAxleat TransferCase(par.

fttoRearAxle(par.137).

rCableandInstallSpeedometerCable

lHousingCoverPlate.

ansferCaseto ProperLevelwith

RetainingScrews.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e





EELBEARINGS

andadjustments151

74).

thedismountabletypehavingaventilated

battypehavingasideretainerrimheld inplace

.

ndsnow treadandsize9.00-20areused

thbeadlocks.Themetal beadlocksareflexible

etalflangedblocksattached.Thebeadlocksfit

re.The flangedblockssecurethebeadsin

eadsfrombeingforcedtogether,sinceinan

edwithoutair.

ssureis70pounds(max.)asmeasuredwith

uldbe coolwhencheckingandcorrecting

ublewhichconcernthetiresandwheels

emedy

eto70pounds(max.).

st-Adjustwheelbearings(par. 152a),

ecap.

en.

epairtube(par.151 a).


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




EELBEARINGS

— Installed

TENANCEANDADJUSTMENTS.

ould berepairedinaccordancewith

uncturesandtearscausingexposureofthe cord

zed.Holesinbullet-resistingand puncture-

pairedby cold-patching.Donotattemptto

ngtubes.Tiresmustbe inflatedequallyandnot

alancedtirepressures(if correct)facilitate

omfort,andcontributetosafedrivingand

eforepumpingairintotubes,depressvalve

nydirtin thevalve.Keepcapsonvalvesto

dforeignmatter.Whenremovingthetire

lveto releaseallair.Removethe18retaining

ng (fig.275).Pryoffsidering, usingapinch

assemblyfromrim(fig. 277).Usingapinch

kringto permititsremovalfromthecasing

blingtireinsertthe tubeinthecasing,insert

ethe tubetospreadthebeads.Insert thebead

eflatethetube,makingsurethatthe flanged

centeredbetweenthebeads.Placethe tire

plytheflangeandpull downintoplacewith

ghtenevenly.Inflatetire to70pounds(max.).


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




LES(IHC)(PERSONNELCARRIERMS,CARM9AI,


ainingCapScrews— Removal

armfuleffectonrubber.Everyattempt

ese substancesfromcomingincontactwith

tenwheelstudnutsdailyfor thefirst500

compensate"setting-in"ofclampingsurfaces.

epurposeanddo notuseanextensionon

Removal


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




EELBEARINGS

refromRim

reBeadLock


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






Installation

ivepressureotherthandirect handeffort.

ositenutstopreventcockingwheelonstuds.

nuts.

t.Thefrontwheelbearingsareadjust-

s follows:

ut

onside tobeserviced.Raisewheelfrom

ut

riveFlange(fig.280).

flangenutsandwashers.Insertcapscrews

flangeandpullflangeoffof splinedouterend

rewsalternately.


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




EELBEARINGS

DriveFlange— Removal

t.

wheelbearingnut

her.Removeouterbearinglocknut.

81).

ut

whilerotatingwheeluntil bindordragis

ximatelyone-eighthturn.

OuterLockNut;Bendtab onwasher.

e.

geNuts andWashers,

oveJack.

ent.Therearaxledrivesprocketbear-

utlinedinparagraph52.

placement.Frontwheelbearingreplace-

ollows:

u


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






ontWheelBearings

bpar.a(2) (a),above).

ange(fig.280).

eflangenutsand washers.Screwincap

eout.Removedriveflange(subpar.a(2 )(b)).

gLockNut.

wheelbearingnut

emovewheelbearingouterlocknut.Re-

gAdjustmentNut.

ut

ngadjustingnut.


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




EELBEARINGS

etandHubAssembly— Removed

s,

mer,knockoutbearingconesor racesfrom

aringCones,

SpindleSleeve,

elBearingAdjustmentNut.

ragisfeltwhilerotating wheel.Backoff

OuterLockNut.

ge.


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






etGreaseSeal— Removal

s andWashers,

oveJack.

Replacement.

ch

ut

ut

.

tig.55).

hetwrench



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




EELBEARINGS

etHubBearingCone— Removal

ftflangenutsand lockwashers.Insertflange

ward.Removedrivingshaft

Nut(fig.56).

wheelbearingnut

sher.Removeouterlocknut.Removelock

tingNut.

ut

gnut.

etandHubAssembly(fig.282)

ER

emovesnapringretaininginnergreaseseal.

oveinnerbearing(fig.283).

s(fig.284).

bearingcones.


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






InnerOilSeal.

semblyonRearAxle,

dAdjustingNut.

rdragis feltwhilerotatingthedrive

mentnutone-eighthturn(fig.57).

OuterLockNut.

d RetainingNutsandWashers.

ragraph55.


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




djustments155

6

untedatthefrontof thisvehicle,isTulsa

alratingof 10,000poundscapacityline

withfulldrumof cable,ratingis40percent

nsmittedthroughthe vehicletransmission

ountedonthe sideofthetransmissioncase,

o thewinchassembly.Operationofthe

edriver'scompartment.

catedinthe frontuniversaljointofthe

edto shearoffbeforedamageoccurs,should

overloaded.Acontrolleverislocatedinthe

ich,wheninthefullforwardpositionoperates

on.Inthe fullrearwardpositionofthelever

e forwarddirection.NOTE:Topermitshift-

ssarytoraisethe smalllockingplateatthe

chproperisoperatedbyasliding clutchand

chdrum.Thewinchdrummustbe engaged

utchleverbeforethewinchcanbeoperated.

emedy

ed.Engagepowertake-off.

fromMoveclutchshifterlevertoforward

engagepinin hole.

aft Replaceshearpin(par.156).


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





RRIAGEMM, ANDSIMILARIHCVEHICLES)


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




h.

emedy

ableLubricatethroughfittings,

sing.Fillhousingto levelofplugonside

weenInstallsufficientgasketstocorrect

mis-clearance,

weenRemovesufficientgasketstocorrect

mis-clearance,

.

hNotifyordnancepersonnel,

.

ad-Adjustsafetybrake,

(..aideis BeingReleased.

perlyAdjustdrumbrake,

CEANDADJUSTMENTS.

onlytwopossibleadjustmentsonthe

maticwormbrakeandthedrumdrag brake.

aticwormbrakeisonthe outerendoftheworm

heendof thewormgearcase.Ifadjustmentof

ecessary,loosenthetwocapscrewsonbackof

ntheadjustingcamto tightenorloosenas

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ed,setthe pointeronthefourthnotch.When

agbrakeis necessary,adjustmentmaybemade

nuts oneyebolt.

MENT.

slocatedinthewinchdrive shaftuniversal

nd isprovidedasa safetymeasuretoprevent

ertake-off.Spareshearpinsareincludedin

ementismadebydrivingout thepinwitha


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uptheholes,inserting newshearpininplace,

g.285).

vetheeightwinchframeangletoframe

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ist.

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gon winch.Liftwinchwithhoistand

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eachend ofeachangle).Installwinchdrive

nwormshaft,and installshearpinin hub.


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160

CLATURELISTS.

mifixed,alltypes,for

ldartillery,includ-

NLR-l

tomaticpistol,andsub-

e,andautomaticgun...SNLT-2

owning,M2,aircraft,

owning,M2,water-

ntsSNLA-37

,Thompson,M1928A1

M1911andM1911AlSNLB-6

3,M1903A1,and

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tmateriel,automatic

on,andmortarsSNLA-35

alf-track,M9(M2E5)

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motor,multiplegun,

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SNLG-147

lubricatingmaterials;

ndmiscellaneous


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dingmaterial,gases,

epairofautomaticguns,

tmateriel,automatic

on,andmortarsSNLA-35

MlSNLG-72

adAandB,) SNLG-144

laturelistsaretabu-

stofSNL's ismain-

ublicationsfor

CATIONS.

9-1900

FSB3-5

M1911andM1911A1FM23-35

al..30,HB,M1919A4

les)FM23-50

al..50,alltypesTM9-1225

msdataTM9-2200

un,cal..45,M1928A1FM23-40

1-455

454

1-859

ection.

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M10-540

missionunitsTM10-585


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nitsTM10-560

nmaterialsandequip-

icating,andwelding

sissuedbythe Ord-

50

attackFM21-40

ctionsforordnance

nanceTM10-525

ecautions,accidents....TM10-360

nsTM10-545

ender,andradiatorre-

10

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0-550

10

ingFM21-6

onTM10-505

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ngineTM10-570

clesAR850-10

gofmechanizedand

nt,alsomajorcaliber

Armyand Navy,

Publishedbythe

nceDepartmentof

anRailroads

quipmentAR850-IP


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ts309

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rs397

ons116

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ment..239-240

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earing..422

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ons115

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case413-414

earing422

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tm 9-707 basic half track vehicles (ihc)

Documents