tm 9-893 light carrier t-15
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8/22/2019 Tm 9-893 LIGHT CARRIER T-15
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niar,™ QOQO
vnru-n ^-O^O
RIl/OF>D
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
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RDEPARTMENT
ebruary5,1943
15
onofthe •
6\i
eStudebakerCorporation)
tructions
..........1-46-14
....5-1215-25
3-1426
ce.....15— 2027-33
21-2434-39
......25-3240-43
n
4-48
ualcon-
49-54
micals44-47 55-57
Instructions
main-
63
....49-5064-65
tsand
—5266
3-6667-118
.67-72119-128
...73-78129-138
9-84139-147
..85-89148-153
iversal
54-157
TM9-893,September15,1942.
P u b l i c D o m a i n , G o o g l e - d i g i t i z e d
/ 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
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nInstructions— (Cont.)
-101158-166
ns102-107167-188
ndelec-
3189-218
nt134-138219-221
0222-223
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
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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
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15
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
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15
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
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structions
s
ntendedtoserve temporarily(pending
ompleterevision)togive informationand
oftheusing armschargedwiththeoperation,
epairsofthismateriel..
rierT-15—Front
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
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y,andsuchrepairsasmaybehandledby
beundertakenonlyunderthe supervisionof
hanic.
atureoftherepair,modification,orad-
peoffacilitiesof theusingarms,theresponsi-
tbeinformedsothattrained personnelwith
entmaybeprovided,orproper instructions
sTM9-893,datedSeptember15,1942,
edamountofabsolutelyessentialinforma-
are ofvehicle.Theinformationcontained
rierT-15—Rear
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
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15
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
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/ 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
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T-15is alowsilhouette,full-tracklaying
earmamentandequipmentforacrewoftwo
eoverdifficultterrainandin combatzones
ablyconstantrateofspeed.Thevehicleis
orcoldweatheroperationwheremostofthe
ce.The vehicleispoweredwithaStude-
,liquid-cooled,6-cylinderenginelocatedat
Theflywheelendof theengineisconnected
eclutch,aconventionaltransmission,apro-
earing typeuniversaljointstothedriving
hicle.Theaxleisofthe planetary2-speedtype
hthetransmission,6forwardgearratios and
fullysuppressedforradioinstallation.
8-gagesheetsteelweldedstructure,
whichareeasilyremovedtofacilitatemain-
perations.Twoplugsandoneplatearepro-
hullfordrainingpurposes.Therearand
uctandthefront wallofthecargoboxesare
e enginecoolingsystemandrearofthe hull.
MODELS.
sinthe vehiclesthemselves.However,
eofradio withwhichthevehiclesareequipped
rdnancerequirements.Fordetailedinforma-
erto thepertinentTM'saslisted insec-
ewithoil,fuelandwater3,390 Ib
ment1,260Ib
650Ib
einch:
racks)3 ft-6in.
shieldperpendicular5ft-7in.
irductand cargoboxes)11ft
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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ansmissionpinion70at 3,800rpm
ewithallaccessories(lesstransmission)418Ib
ehull,adjacenttothe driver'sknees,are
erfrominjury whentraversingexceedingly
sealevel
oworsimilarsurface:
milespergal4% ,,
utrefueling115
mate)300milesperqt
faceat3,000ftelevation25mph
surfaceat3,000ftelevation35 mph
terrain
nespeed,
TOTHI
M9
ferencePlate
P u b l i c D o m a i n , G o o g l e - d i g i t i z e d
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15
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
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/ 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_
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SOUTHBEND,IND.
5
G
cationPlate
gability,
000ftelevation,
g
000ftelevation,
Videg
deg
gle79deg
tofvehicle(vehicle—lesscrew
ckline(vehicle—lesscrewand
atvehiclewillcross5 ft-1in.
e,suchasawall,thatvehicle
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
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LS
ntrols5
NONCONTROLS.
kcontrolisautomaticandis variedto
itionsbyagovernorwithinthe distributor.
chokingofthecarburetorforcoldstarts
ingthecarburetorchokecontrol.Thecontrol
strumentpanel andisreadilyaccessibleto
10).RefertoStartingInstructions,para-
rmation.
esired(asduringengine warm-up
nginecan besetbypullingout thecar-
heinstrumentpanel.
eratorpedal,accessibletothedriver's right
positivecontrolofenginespeed.
glevers,accessibletothedriver'sright
ndividualrotationof thedrivewheels
ever,whenmovedrearwardby theoperator,
rivetrackthroughthefront axleplanetary
cletoturn totheleft.Theright steeringlever,
llcausethevehicletoturnto theright.The
whenthevehicleis movinginreversewith
whichthe driverisfacing;i.e.,whenthe left
wardthe vehiclewillturntowardthemuffler
ghtsteeringleveris pulledrearwardthe
egasolinetankside. Thedesignoftheaxle
trackissloweddown,theoppositetrack
hevehiclehaspowersteeringavailablewhen-
operation.Thesteeringleversaremounted
using andareconnectedbylinkstothe
rollingtheindividualspeedsofthe drive
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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ndControls
simultaneouslyonbothsteeringlevers
ehicle.Ifenougheffortisapplied,suchaction
clutchisnotreleasedinstopping,the engine
hislocatedin theclutchhousingimme-
e(fig.8). Theclutchiscontrolledbya pedal
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_
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OLS
WITCH
MPASSLAMPSWITCH
ON
AMPSANDREARMARKERLAMPSWITCH
TOR
LAMP
TERSWITCH
CONTROL
LECONTROL
L
OTECONTROLSHIFTLEVER
49339B
umentsandControls
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
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eftfoot.Thepedal isconnectedbyacable
heclutchreleaseshaftlever locatedatthe
mblyunitlocatedatthe frontoftheclutch
djustablelinkagetothetransmissionremote
he leverisjustaheadof thedriver'sseat.
leverfromneutral(center)positionto the
thelowspeedposition;to theleftandforward
fromneutraltothe rightandforwardengages
;whilemovingtheleverto therightandrear-
edposition(fig.11).
eds.Theaxlegearshift levercontrolling
e leftofcenterandjust aheadofthedriver's
wardengagestheaxlehigh speedgear,while
estheaxlelowspeedgear (fig.11).Thus,
eeds,thereare available6gearratiosforward
riorlights:aspotlightatthe rightfront
hawidefrontalrange andamarkerlightat
e.Also,thereare2instrumentpanellights
htis controlledbyaseparateswitchonthe
rmarkerlightis includedintheinstrument
hemarkerlightburnswhenthe2 instrument
EM
NBOTTOMOFHULL.
ADIATOROUTLETAND
TSIDEOFCYL.BLOCK.
ORATION
ng,andCoolingSystemDrainInstruction
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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LS
tricheatingelementtypewindshield
aybe mountedbyrubbersuctioncupsto
hielddefrosterisoperatedbya switchon
gacoldengine,apump-typeengine
wgasolineintotheintakemanifold.Tooper-
outwardand thenpushinbrisklyon the
heinstrumentpanel.
inseverecoldisa dilutingdevicewhich
stheoilsupplyintheoil pan,thuslessening
nginestartingbecauseofcongealedoil.If
obecomepartiallysolidified,anextremeover-
erywhich,insuchweather,isnotup topeak
dbya3-wayvalveconnectedtothefuel
nedinonedirection,thevalvewill permit
nkinto asmallgasolinereservoirabovethe
urnedin theoppositedirection,gasoline
anfromthereservoir.Whenthevalveis at
pipesto theoilpanand tothefueltankare
emanuallyoperatedjustbeforestoppingthe
inedamountofgasoline(refer tothedilution
dfirstto thereservoirandthentothe oilpan.
TION.
vehicleconsistsoftwomenandforthe
menmustsharetheinspectionworkasdirected
overthecompletevehicle.
water leakageintotheinteriorofthe hull
s.Thischeckshouldincludeaninspectionof
heaterconnections,andtheradiator.Check
iresandcoilwires areinplaceandthat there
spthe counter-balanceofthemanifoldheat
isfreeandnot seizedineithertheopen or
coolantintheradiatorandtest thestrength
s used.Addliquidorstrengthenthe anti-
el.Add oilasrequired.
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
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ansmissionoilleaks.Reportleakageto
leaksat theaxleunit.Reportleakage
wheels,bogiewheels,rearwheels,and
nebyshakingwhetheranyloosenessexists.
ndthe rearwheeltensionsprings.Noteif
esandif thereboundclipsareintact;also,if
hedrive trackgrouserplatesandgrous-
grousersneedtobe replaced.Checkthe
902836suppliedaspart ofthevehicletool
racktensionshould bereadjusted.
mentto makesureitisoperatingand
uisherfromitsmountingbracket,check
et,anddetermineifthe extinguisherisfilled
vehicletoolsandpioneerequipment;
f anyrequirereplacement.
versforfreenesson theirpivotsandat
ansmissionremotecontrolandaxle gear
necessary,oilallofthelever linkagein-
atorandclutch.Seethatthe clutchhasat
vementattheclutchpedalbeforedisengage-
panel.Theammeterhandshouldremain
their"OFF"positions.Theoilpressuregage
dtheheatindicatorandfuel gagehandsshould
ns.
erswitch,notethereadingandwhether
pburns;thenopenthe switch.Lightalllamps
ding;thenopenthe lampswitches.Checkto
markerlamp,andthe instrumentpanellamps
tervalveisclosed.
dammunitionareingoodconditionand
rations,blankets,firstaid kits,etc.,and
andstoredcorrectly.
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
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LS
asolinewithanoctaneratingof80 should
or nearsealevel.At3,000ft altitude70
edsatisfactorily.
NS.
mpartmentlidopen,press thestarter
gineseveralrevolutions.Therearairduct
ould havebeendonepreviouslywhenthe
oftheprimerwill dependontheprevailing
ornottheengineis alreadywarm.Forcold
emperature,usetheprimer bypumpingit
ngonthe temperature.Forbestresults,pull
arwardslowly;thenpushit forwardbriskly.
use oftheprimermayeasilyadd tothe
ngine isflooded.
econtrolbuttonoutwardtothe fullchoke
aldownaboutone-thirdofits normal
nremotecontrolshift leverisinneutral.
tch.
todisengagethe clutchfromtheengine
terpushbutton untiltheenginebeginsfiring.
themomenttheenginestarts tofire.Ifthe
tly,investigateatoncebecausecontinued
he startermotorwillonlyresultin discharg-
gthe cylinderswithgasoline.Donothold
tsclosedpositionformorethan 30seconds
towarmit.Assoon astheenginestartsto
penthechokevalvebypushingin onthe
button.Donotopenthechokevalvetoo
omeswarm,allowthethrottletocloseby
pedal.Graduallyengagetheclutchbyreleasing
easethe clutchquicklybecausecongealed
representtoogreataload forthecoldengine
peraturerises,the closedrearairductlid
openedasrequiredfornormalenginetem-
dedwiththeequipmentofthevehicle
engine.Whenitis knownthatthebattery
energyinthebatterywillbe neededtodeliver
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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allycranktheengineseveraltimes before
ch.Thismethodis preferabletotowing.
rank,thecrankguidecovermustbe removed
ounterclockwisedirectionone-quarterturn.
nk,besure toreinstallthecoversecurely.
storedwith thevehicleequipmentafteruse.
chthe oilpressuregage.Theengineoil
ximum,approximately40pounds,withinnot
rtheengine starts.Ifnooil pressureisindi-
mediatelyandinvestigate.
ehandofthe ammetershouldmoveim-
coldengine,theamountofchargeshouldbe
teof33 to35ampereswiththe enginerun-
rottle.
ooperatingtemperature(lessthan 10
dforthis), theenginetemperatureindicator
ly175F.Ifthetemperaturerisesappreciably
air ductlidisopen.I fthecoverisopen,in-
overheating.Thefanbeltmaybeslipping or
angerouslylow.CAUTION:Ifithas been
ngineinan overheatedconditionandthecool-
tothe boilingpointasindicatedbythe engine
notatonceremovetheradiatorcapto replace
steamtoescapethroughthe radiatorover-
ealingcapcounterclockwisetoits firststop.
owedsevereburnsmaybeinflictedonthe
eam.Undertheconditionsoutlined,donot
unlesstheengineisrunning becauseacracked
eadmayresult.Ifantifreezesolutionis in
ecoolingsystemmustbeatleast ofthesame
eadyinthe systemiftheprotectionisto be
heresultantsolutionmustbe testedafter
dded.
oisesemanatingfromthe engineortrans-
seis detected,eitherinvestigateandcorrect
othatathoroughinvestigationmaybe made.
CLE.
eratethevehicle,thedrivermust become
elocationandfeelofall thecontrols.
llbeoperatedin theaxlehighgearrange.
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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LS
verintothelowgear rangeifdifficultterrain
ltoovercometheeffortof theclutchpres-
ddirectionisforward,movethetransmission
hefirst speedposition(low).Graduallyen-
gtheleft foot(depressingtheclutchpedal)
ward«bytheclutchpressurespringsand,atthe
celeratorpedalsufficientlytopermittheengine
movethe weightofthevehicle.
mentumandtheengine ceasestolabor,
llowtheacceleratorpedaltorise and,atthe
missiongearsto thesecondspeedposition
celerateandengagetheclutchslowly.
thethird speedposition(high).
e vehiclerearward,followtheprocedure
etransmissiongearsintothereverseposition.
edtochangethe transmissiongearstothe
backontheleftsteeringlever tomake
heright steeringleverforaright turn.The
ctlyproportionaltotheextenttowhicha
ward.Thedriver mustanticipateaturnand
powerneededbysimultaneouslypullingback
depressingtheacceleratorpedalaslightaddi-
lbackslowlyonbothsteeringlevers,de-
releasethe acceleratorpedal—allinone
ses,aswhenencounteringheavyterrainor
willnot benecessarytoapplymuchbraking
sunless thegradeissteepenoughto require
llingbackward.Afterthevehiclecomesto
sionremotecontrolshiftleverto neutraland
.
gage,ammeter,andenginetemperature
ssibletrouble.Whenanyofthe gagesbecome
eadings,investigateimmediatelythecause
E.
nefora haltofseveralhoursduring
10Forlower),operatetheoil dilutertoadmit
ine(referto dilutionchart—par.56)into
uting theoilwithgasoline,operatetheengine
tidling speedtoallowcompletemixing.
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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tchand,astheenginerevolvestoa dead
epressingthe acceleratorpedaltoallow
ombustiblemixtureforthenextstart.
NS.
saremountedatthefrontand rearof
ovideaquickmethodofattachinga vehicle
hereareseveralprecautionsthatthe
oubleor unnecessarydelay.Changesof
plishedbyaseriesofshort turnssothatthe
earlyas possible,directlybehindtheone
notdoneanda continuousshortturnis
bleorchainmaybecomeentangledinthe
to thetrackorcable.Whenenteringmuddy
nsnowor ice,ifpossibleavoidturnsof any
ertrackvehicleataspeedgreaterthan 12
e,chain,orropefromthe vehicleor
owingeyeattherear o1'--«Bowingvehicle
pullingisin thep'--'-I tl=ei-owingeye.
certainthattheconnectingcableaoesnotcon-
eleftor righttracks.Estimateinadvancethe
withoutfoulingthecableand tracks.Atevery
tthetowinglineand connections.
n anemergencywherehandcranking
rted bytowing.Theoperatorsofthetwo
roceedasfollows:
cessary.
kecontrolbuttonout asinregularstarting.
speedposition.
o itshighspeedposition.
itch.
epressedandsignal totheoperatorof
ehasgottenwell underway(waitfor
theclutchanddepresstheacceleratorpedal.
sfiring, disengagetheclutch,adjustthe
ttlecontrols,andsignaltothedriver ofthe
neutralandallowtheengineto warm
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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LS
ineRunning):
ctlyinfrontof thetowedvehicle.
dthetransmissiontolow.
utchpedalandopen thethrottleatthe
greateramountof throttleopeningtocom-
oad.
tosecondgearbefore signalingtheother
tchofthe towedvehicle.Afterthetowing
secondorhigh gear,dependingontheter-
oengagetheclutchofthe towedvehicle.
towedvehiclehassignaledthatthe engine
thetowingcable.
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
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-15
andinformationontheoperation,care,
mamentwiththisvehicle,referto technical
sectionXXIII.Vehiclesdifferinthetype
carried;therefore,thefollowinginformation
fle,cal..30.Thisrifleisstrappedto the
efrontandbesidethe deckcoaming.
eGun,cal..45.Thisgunisstrappedto
ontof thecockpit,totherightof thedriver.
bines,cal..30.Theseriflesarestrapped
ckpit,oneoneitherside oftheassistant
auncherisstrappedtothevehicleleft
besidethe deckcoaming.(Notusedon
owningautomaticrifle.)
f
oundsMagazinesStowed
...30ball30015 onhull
un.45ball37515in hull
hull
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
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CE
on17
19
insureuninterruptedoperationitis
ehiclebeinspectedsystematicallyaccording
le.
aydevelopina casting.Thisissureto be
hecyclicinspectionsbytheappearanceofan
nce.Inthis way,acostlyinterruptionofserv-
mewillbe forestalled.
ancethroughtheunit ordnanceofficer
echanicalfailures,oranytypeofunsatis-
ayberesultingfromconstructionordesign.
provementoftheinspectionproceduresor
edonactualexperience,shouldlikewisebe
efofOrdnancesothatallusers oftheequip-
om.
scontainingspecificinformationmustbe
mpletelyandshouldcontainthefollowing
nd thecorrectnameofthepartor unit
ncludethe ordnancenameofboththe
herwiththe U.S.registrationnumberand
er.
meandnumberifany.
milesortime(hours,days,andmonths),
thepart orunit.
eand theconditionsorcircumstances
amageoccurred.
andthenameofthe placewherethe
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
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-15
the failingpartorunit.
thenewpart orunitwasobtained.
rsweremade byotherthanordnance
hatsourcethe laborwasprocured.
oreachfailureunlessthere areseveral
calvehicles.Insuchacasea singlereport
outanydifferenceexistinginitem number5.
unitsreportedon,fordisposalinstruc-
nance.
TION.
ne,performtheprestartinginspectionop-
aph6.
OPERATION.
peration,lookforandbealert todetect
rsindicatingan unsatisfactorycondition.
peciallytheammeter,oilpressuregage,and
ator.Undernormalconditionswithafully
eterwillshow8to10 ampereschargewhen
ruising speed.Iftheammetercontinually
geof30 amperesormore,theelectricalsys-
thedifficultycorrectedwithoutdelay.Ifan
eringontheammeter,itis verylikelythat
thinthevoltageand currentregulator.The
replacementtoavoiddamagetothe bat-
will showapproximately40poundspres-
hegagesuddenlydropstozero orstarts
dmakean immediateinvestigation.There
theoil supplymaybetoolow.
der normaloperatingconditions,theen-
orshouldregisterapproximately175F.Ifthe
intothedangerarea,stopthe engineand
abrokenfanbelt orhoseconnectionand
wto apointwherecontinuedoperationis
ntheinstrumentsrecordanyabnormality,
ndthe causeshouldbedeterminedandcor-
orany unusualodorsuchasburningbrake
Noteanysuddenlossof powerorunusual
onditionsmayrevealtroublein thetrack,
e.
daftertroublehasbeendiscovered,itwill
completefailurecanbeavertedunlessan
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
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CE
temporaryrepairs.If thedriverisin doubt
ervedduringoperation,hemust,whentime
sistanceandadvicefromanauthorizedsource.
temsnotedduringtheperiodof opera-
me permits;also,ageneralgoing-overwill
chseemtobe irregularduringoperation
evehiclestopped.
pectionisrecommendedduringthehalt:
swhile theengineisidling.Noteif
haustsystemleaks.Operatethe manifold
(withgloveon handtoavoidburning)to
uel,oil,orwaterleaksunderthe engine,
ecovers,alongthecylinderhead,atthefuel
yheaterhoseconnections,attheoilpressure
thejointbetweentheclutchhousingand
ononbothsides ofthetrackstodeter-
platesareall rightandthatthetension is
ylargelumpsofsnow,ice,orstoneswhichare
perationof thevehicletrack.Noteifthere
brokenandiftherubberguide beltsaresat-
llyforpuncturesor seriousdentswhich
forbrokenseamsat weldedjoints.
eratetheli ghts,testtoseethat theyburn.
ndthe coolantlevelintheradiator.
ha cleanragandtesttheoperationof
operatedwindshieldwipers.
PERATION.
yassignmentmakeaninspectionwhichis
dthan theonedescribedfor"AtHalt".This
suchrepairsascanbemade andanypreventive
andadjustit ifnecessary(par.103a).
heels,guidewheels,bogiewheels,rear
grouserplates,andthesupportsprings.Note
en,or missingparts.Cleanoutanydebris
ystem.
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
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-15
el,addingoil ofthecorrectgradeas
hearmamentandsee thattheyarestowed
lthe lights.
andseethatthe requiredamountisinplace.
ryammunitionandstowit properly.
or.Checktheradiator coolantstrengthif
n,adjustingit ifnecessary.Lookparticu-
eltdeterioration.
gandnote ifanywiresneedreplacing.
veis closed,alllampsareoff,andthat
switchesareopen.
primer.
cockpitandwipeupalloil,water,and
partment.Thecockpitdrainplugislocatedon
oftheassistantdriver'sseat,to theright
.The drainplugisreadilyremovableby
ket,extension,andratchethandle.When
threadsmustbecoatedwithLEAD,white,
ug tightenedsecurely.
NS,
ation.
ntiveMaintenanceOperations
erycompartment
is-
er-
ry
the
pect
bat-
on.
ap
t-
lhoseconnectionsfor
tor
or
t the
anti-
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
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CE
nd
etor
he
ddi-
nd
kthe
tion
for
ondary
ter-
eany
broken
ean
or.
.Ex-
elains
ng
in.
on-
Clean
and
ry.
nd
eoc-
ove
r
nt
st
rfuel
e-
eis free
dle
nd
aner
cover
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
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-15
ccel-
lutch,
stthe
trol
sary.
cap
nuts.
ange
,and
ks.
ngine
ough-
starter
e
kto
nd
dmake
ghten
al
nthe
h
ter
,and
wsand
the
bri-
ed.
the
en
xle
ve
eoff
ase
efiller
nt
-
dthe
e
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
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CE
edalandread-
ere
ement
ch
offthe
arsand re-
em.Reportanydamagedgrouser
enthe
g
ration.
ctionafterOperation"and500-mileinspec-
akebandsand testthesteering.
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
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-15
alpartof preventivemaintenance,deter-
heserviceabilityofpartsandassemblies.
tructionsforthismaterielareconsoli-
e(fig. 12).Thesespecifythepointstobe
ubrication,andthelubricanttobe used.In
eguide,othersmallmovingparts,suchas
elubricatedatfrequentintervals.
maynotbe possibletosupplyacomplete
alledforbythelubricationguideto meetthe
benecessarytomakethebestuseof those
ctionbytheofficerconcerned,inconsultation
epersonnel.
ollowingnotesapplytothelubrication
rencesin theguideitselfareto thesub-
hecorrespondingnumber:
eapplyinglubricant.Lubricateuntilnew
ebearing,unlessotherwisespecified.CAU-
onpointsafterwashingcarrier.
ornormalservice.Forextremecondi-
,sand,mud,snow,dust,etc.,reduceinterval
tionswarrant.
000miles,removeandwashfilterele-
sedcrankcaseoilorengineoil (crankcase
y1,000to3,000miles,dependingonoperat-
cleanerandwashallparts. CAUTION:Keep
anandtight.Proper maintenanceofair
ongenginelife.
ywhenengineishot.Refillto "FULL"
afew minutesandrecheckoillevel.CAU-
geindicatesoilis circulating.Seetable.
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
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LNUMBERlocatedonleftend ofinstrumentpanel.
• Lubricant
.,....2 C6Guidewheels
ENSIONSYS-
of CARRIER
S
%
OE3
OE3
61
nhull)
4
ble)
cup!
)
SE,generalpurpose
ve+32° F.)
d)No.0(+32° F.to0° F.)
rpose
DLUBRICANTSTOBEUSED
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
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-15
0miles,ormoreoftenif necessary,re-
enewingelement,refillcrankcaseto"FULL"
afew minutesandrecheckoillevel.
checklevelwithcarrieronlevelground;
ttocorrectlevel.Drain,flushandrefill as
e.Whendraining,drain immediatelyafter
estol/2 capacitywithOIL,engine,SAE10.
ncasesslowlyforseveralminutesandre-
andrefillcasesto correctlevelwithlubri-
KETS,BOGIEWHEELS,GUIDEWHEELSAND
ckisremovedforrepair,cleanandrepack
neralpurpose,seasonalgrade.Toproperly
justingnutuntilthe wheelturnshardbyhand;
nutin place.
emoveseatsandtunnelshieldsections
pplyGREASE,generalpurpose,seasonal
wsfromreliefvalve.Slipjoint atfrontof
edifferential.
NG.Attimeofclutchdisassemblyforin-
overhaul,coatlightlywithGREASE,general
toprovideeasyassembly.
3,000miles,wipedistributorbreakercam
ralpurpose,seasonalgrade,andlubricate
,engine,crankcasegrade,sparingly.
ry250miles,lubricatetransmissionshift
overhingesandlatches,clutchclevisesand
nwithengineoil(crankcasegrade).
oLUBRICATIONSERVICE.Springs,water
easebearing,tracks.
CATEDATTIMEOFENGINEREMOVALFOR
rter.
ndServiceInstructionsonIndividual
bricationandservicebelow0F,refer
lubricationofthefrontandrear uni-
elcarrier,the transmission,theclutchrelease
age.Figure14illustrates pointsoflubrica-
ntrollinkage,thefrontaxleunit,andthe loca-
plateinthe hull.
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
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LEASE
TH
VEL
ints
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
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-15
G
VEL
VEL
ORWICK
ION
nts
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
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RDS.
structionsarecloselyfollowed,proper
actoryresultsarenotobtained,areport will
fficerresponsibleforthe maintenanceofthe
cordoflubricationservicingwillbekept
materiel.
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
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-15
nting27
9
es32
mustbekeptof eachmotorvehicle
epartment.ForthispurposetheOrdnance
o.7255),generallycalled"LogBook,"is
ndmustaccompanyitatall times.Thisbook
rdofthevehicleandfromit valuableinforma-
andmaintenancerequirementsareobtained.
mustinsistthat accurateentriesbemade.This
canvascovertopreventitfrombecoming
ed.
ordofassignmentmustbedestroyedprior
Also,anyotherpostings regardingtheiden-
stbe removed.
hesourcesofgreatestwearto avehicle.
reallowedto accumulate,particleswillsoon
sto causeunnecessarywearand,ifnotreme-
e'sprotectedmovingpartsareexposed
rreplacement,becarefulnottojar orbrush
byaccidentdirtdoesget intotheparts,it
edoutbeforereassemblinganyparts.
soakeddir^andgrit, soaktheareawith
ppliedwithragsora brush.Continuedsoak-
sothattheycanbescrapedoff.An additional
erveto removeanyofthedepositremaining.
eisavailable,it maybeusedtocleanparts
ensoakedthoroughlywithcleaningsolvent.
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
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sedaroundtheengine,caremustbe exercised
ectricalapparatus.
omecloggedmustbecleanedwithapiece
drillpoint heldinthehands.It isnotadvis-
hepoint maybreakoffinthehole andaddto
eananddecontaminatevehiclesthat
asattack.SeesectionIX on"MaterielAf-
etailsofthisoperation.
NONPAINTING.
ntedbeforeissuetothe usingarmsand
ryearwillordinarilybeamplefor protection.
for protectionandforcamouflagewith
e,lusterless,oneprimerandtwofinishcoats
ure.Newcoats,whenrequired,maybeap-
eoriginal,providedthefinishis notcrackedor
ssarytoresurfaceanyareassoaffected.
inishingisusuallyissued readyforuseand
g orspraying.Ifthefinish istobeapplied
han 5percentbyvolumewithTHINNER,for
namelisto besprayed,thinningto15percent
t consistency.Useonlythereducersfurnished
hissprayed,itwill dryhardenoughforre-
hard in16hours.
tandinstrumentsarenotto bepainted.
TING.
materielisin poorcondition,itismorede-
tfromthesurfacethanto usesandingand
tripping,itwill'thenbenecessaryto applya
etic,shouldbeusedonwoodasa base
Itmaybeappliedeither bybrushingorspray-
orilyasreceivedoraftertheadditionofnot
umeof THINNER.Itwillbedryenoughto
ard in5to 7hours.Forspraying,itmaybe
15 percentbyvolumeofTHINNER.
nhibiting,forbaremetal,shouldbeused
suseandapplicationis similartothatoutlined
paintingdependspartlyontheselectionof a
elyuponthe careusedinpreparingthesurface
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
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-15
tobepaintedshouldbe freefromrust,grease,
ustbedry.
FACES.
dofcleaningtheyshouldbe washedina
fVia-poundofSODAASHin8 quartsofwarm
ution;thenrinsedin clearwaterandwiped
sinneedof cleaningshouldbetreatedinthe
linesolutionmustnot beleftonformore thana
cesshouldbewipeddry assoonastheyare
nishisin fairconditionandonlymarredin
dbetouchedup withENAMEL,synthetic,
mittedtodry.Thetouchedupareas shouldbe
APER,flint,No.1.Afteralldust andsandhas
withENAMEL,synthetic,white,lusterless,and
eforeusingthe equipment.Ifthesurfaceis
eandwearandthereis noindicationoffinish
ndcracking,sandtheentiresurfacewith
RIMER,ground,synthetic,andallowtodry
theprimedsurfacewithPAPER,flint,No.00,
yafinishcoatofENAMEL,synthetic,white,
todry thoroughlybeforethematerielisused.
GE.
jorconsiderationinpaintingordnancevehi-
econdary.Thecamouflageplanemployedat
ors:color,gloss,andstenciling.
thisvehicledefinitelyservesascamou-
or themetalhullandexposedworkingparts.
atesoversnowandice,itis importantthatthe
t alltimes.Whenrepairsaremadewhich
redareasshouldbe repaintedwhenevertime
tic,white,lusterless,usedinthefinishof
rregularcamouflagingmarksofPAINT,gaso-
ess,makeitdifficulttosee thevehiclefromthe
distancesoverland. Forthesereasons,a
besubstitutedfor thelusterlessfinishwhen
ationnumbersofthisvehiclearein blue
cannotbephotographedfromtheair, andare
ancesexceeding75feet.
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
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e.
tionorrubbingactiononthis vehicle'slus-
therubbedareasbecomingglossy,stepsshould
ction.Donot washthevehiclemorethan
ng,dowhatrubbingis necessarywithasponge
ubany surfacesexceptwhenwet.
eplusterless finishedvehiclesascleanas
wever,greasespotsorany soilwhichshowsup
kept toaminimumthroughtheuse ofSOL-
ax-treatedtarpaulinswillproduceagloss
withSOLVENT,dry-cleaning.
ateachyearis recommended,butthismay
edbyacarefulinspection.Theidentification
ngtwiceayear.
s,thepaintmaybecomesothickas tocrack
sentinganunsightly appearance.Ifsuchisthe
withpaintremoveror alime-and-lyesolution
t isimportantthateverytraceofthe solu-
becompletelyrinsedoffandthattheequipment
ntingisattempted.Thesurfacethuspre-
cordingtodirectionsinparagraphs27 and28.
NGDEVICES.
ewvehiclesarenotpaintedas describedin
reasefittings,oilplugs,and oilholesaswellas
aof3/4inch shouldbepaintedwithENAMEL,
erto facilitatelubricationbydefinitelyiden-
s.
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
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-15
ONVEHICLE
sionspringrelease,SD902748
80
n,SD902836
4715
ch,SD664327
664713
42
D196761
64321
e,15-in.,SD664666
en-end,12-in.,crescenttype,SD664665
nd,3/8-in.-yi6-in.,SD664330
nd,l/2-m.-1%2-in.,SD634331
nd,%Q-m.-iy\6-m.,SD634332
nd,s/8-in.-2%2-in.,SD634333
nd,3/4-in.-y8-in.,SD634334
ug,^0-in.,SD512819
co
4
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
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ONVEHICLE
(2)
roll)
taining
under
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
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15
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
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NVEHICLE
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
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-15
on
entlid
tmentlid
compartmentlid
rearcompartment
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
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SUALCONDITIONS
em40
43
tenanceofthisvehicleatlow tempera-
chdonotexistat normaltemperatures.There-
aintenancepersonnelmustspendmoretime
protectivemaintenance.Failuretogivethe
equiredwillresultin damage,lossoftime,
ties.
ebeendividedintotworanges:—10F to
ubricantsundergochangesintheirphysical
ndsincetheremaybe instanceswhenthe
temperatures,auxiliaryheattothe engine,
berequired.
iclearewithintheengine compartment;
ficecrystalsfromsmallquantitiesofwaterin
atingdifficultiesifthetemperatureis low
cautionsshouldbeadheredtoinan effort
ulationinthefueltankof thevehicle:
npouringor pumpingitintothefuel
ouchthenozzleofthefillerhoseor can
olinestartstoflow.Thiswill dischargeany
ty.
efueltank full.Thiswillreducecon-
mthefreeair spaceabovethefuel.
ndrumswhichhavenotbeencleaned
msdry;instead,allowabout4inchesof
.Thisresiduecanbetransferredlaterto a
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
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-15
ermits,allowafull drumoffuelto settlefor
ved.Keepportablefuelpumpscleanand
ndfrost.Protectthevehiclefueltank against
matterwhilefilling.
beenopened,besurethat theplugis
tryofany foreignmatter.Whenpossiblestore
.
onnectionsonthevehiclearetight and
mes.
N.
eredinsectionV.However,thefollow-
precautionswillsupplementthelubrication
ableonlywhentemperaturesremaincon-
g periods:
ilable,storethevehicleinside.Whereno
avortoparkthevehiclewhereit willbepro-
turalmeans.
toredoutsideandif therearenonatural
ginecarefully.
srequired(par.56).Thefollowingtable
inewhichshouldbeadded totheengineoil
Diluent
wasnotoperatedprior tothelasttime
will probablybenecessarytodirectheat
he enginecompartmentinordertothin
eratingwithdilutedoil,theoil consump-
siderably.Specialattentionshouldbegiven
pressure gageandtheoillevel inthepanas
Also,checktheoil frequentlyforsludgeand
.Changetheengineoilasoftenasrequiredto
ntslubricatedwithan oilcan.
nswhereitis absolutelyessentialfor
it maybeconsideredadvisabletoinstitute
ksbyoneorseveralexperiencedoperators
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
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SUALCONDITIONS
tostartall theenginesofthevehiclescom-
engineshouldberun fora5-to 10-minute
becomingcompletelycoldandtoassurequick
efrequencyofthecheckand thetimethe
bevariedto suittheconditionsencountered.
foraperiodicwarm-up,setthehandthrottle
e ammeterregisterscharge.
KAGE.
anto lubricatethelinkageofthesteering
dtransmission.
anypoints aboutthevehiclenormallyre-
extremelylowtemperaturesitis impossible
possibleafterusingdilutedoil.onbearings
,replacetheoilwiththe greasespecifiedfor
done,shortenthefrequencyofthelubrication
ersaljointsshould notrequireanyspe-
However,whenperformingtheregularroutine
eratingconditions,theuniversaljointneedle
withanyoil thatwillflow,butit mustbe
raturesjustifyachange.
INGSYSTEM.
estone)isrecommendedforuseas
wever,whereETHYLENEGLYCOLisnot
tured,maybeused.Thefollowingtablegives
NEGLYCOLorALCOHOLwhichmust
coolingsystemagainstfreezingatvarious
QViU.S.at8* Imp,at
—aor—40F—30f
. 5
3.754.1455.4
7. 5
4.1455.46.25
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
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-15
ezeSolution.
mthoroughlybyflushingthe radiator
telytoavoidanytransferofsedimentfrom
sible,flush thecylinderblockandradiatorin
hichthecoolantnormallyflows.Iti salso
atelytheheaterforthebatterycompartment.
sedhoses,coattheinteriorends ofthe
sic-carbonate,andtightenthehoseclamps
aceit ifnecessary,andadjustthebelt
presentatthewaterpump,cylinder
xpansionplugs.Eliminateanyleaksfound.
savailable,mixtheantifreezesolution
oolingsystem;otherwise,pourinsmall
oughlymixthesolutionwithinthesystem.
minutesatafast idlespeedtocirculate
heckthebrushes,commutators,and
artingrequiresacleanstartercommutator
atteryup tooperatingefficiency,thegen-
ushesmustbeclean,withgoodbrushto
nall electricalconnections.Removeany
ebatteryconnectionsandwipethetopof
ecktobesurethe ignitioncoilandignition
unctioningproperly.
tributorand capcleanbothinsideand
tscleanandadjusted properlyat0.020inch
ointswhennecessary.
ugsshould becleanedandadjusted
werbatteryandcoilefficiencyinextremely
uggapclearancemustbeset accuratelyat
timingin properadjustmentandcheck
efficiencyofabatterywilldecreaseto
elow—40F.However,thisvehicleisequipped
he batterycompartmentislinedwithspecial
hebatteryiskeptwarmduring vehicle
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
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SUALCONDITIONS
onnectedintothecoolingsystem,and the
totheleft ofthebatterycompartment.Thus,
rtsmaybemadein temperaturesof—40F,
tfree withthediluterandthe batteryis
edstate.Testthe batteryfrequentlywitha
edbatterywilltestbetween1.275and1.300.
hargeditis unlikelythatitwillfreezewithin
ompartment,butacompletelydischarged
ndgroundconnectionsmustbeclean
oidhighresistanceatthese points.
estartermakesure theengineprestarting
nfollowedcloselyandthat thereisnoice
gineelectricalequipment.Also,inextremely
neshouldbecrankedbyhandto savethe
kof highintensity.Whenthestarteris cold,
ontactfornot morethan30secondsata time.
ATION.
0Fto—40 F.
stmentsareestablishedcorrectly,theoil
eris used,andthebatteryisfully charged,a
eratureof—40F.
eisin readinessforstartingandfollow
ar.8).Whenthe enginebeginstofire,attempt
tion,atverylowtemperaturesitis necessary
gthetimeof thestart;andevenafterthe
etimesnecessarytocontinuethemanual
kethemistakeofopeningthe carburetor
thebutton) tooquickly.Iftheenginefires
en stops,water(anaturalproductofcom-
oldinnersurfacesoftheengineandturn to
nditionwilladdgreatlytothe difficultyof
ningnormallyandthecarburetorchoke
atetheengineata fastidlespeeduntilthe
atureoftheengineisreached,asregisteredon
djustandreadjustthe rearairductlid as
medthoroughly,operatethevehiclefirst
agitateandcirculatetheoil inthetransmis-
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
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-15
40F.
eenexposedto extremelylowtempera-
e,itwillbe necessarytoheattheoilpan,
fuel.Whenpossibleusea fullychargedbat-
naprotectedplace.Eveninsucha caseit
batteryforcrankingtheengine.If theattempt
ils,tow thevehicle.
previously,it wouldbebetterforthe
e enginewerestartedatfrequentperiodic
riodof thehalt.Suchaprocedurekeepsthe
rtmentswarmandmakesstartingarelatively
gine,operatethediluter usingtheamount
mendedforthetemperaturebeingencountered
eed,turnthe ignitionswitchoff,andlet
onanopenthrottle.This practicewillnot
productsofcombustion,butthecylinders
ullchargeofcombustiblemixture.
ESSORIES.
yatentor largetarpaulininconnection
dbya fire,portablestove,orsomeother
keeptheheat fromthefireor thestove
eep thewindout,theenginecanbe started
weatherprecautionshavebeentaken.Means
orevena shelterorcoverarenotalways
uggestionismadeonlyasa reminderthat
beusedto decreasethehazardsofextremely
n.
etohaveextrafullychargedbatteries
r airductlidmustbe kepttokeepthe
aloperatingtemperaturewhiletheengineis
ouldbefullyclosedwhile theengineisbeing
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
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HEMICALS
tomotivemateriel47
ell,andchemicalsprayarethemajorchemi-
estroyingordamagingmateriel.Removingor
iquidorsolidchemicalagentsspreadby these
sechemicalagentstoharmlesssubstancesis
RES.
ammunition)isinconstantdangerof
plyalightcoatofseasonalgradeengineoil to
kecarethattheoil doesnottouchtheoptical
theror canvasfittings.Protectmaterielnot
spossible.Keepammunitioninsealedcon-
acticallynoprotectionagainstmustard
oilcloth,forexample,willbe penetrated
ger theperiodofexposure,thegreaterthe
deofeitherofthesematerialsis worn.Rubber
mustardgasmayofferagravedangerto men
ysaftertheattack.Impermeableclothing,
rationofchemicals,willresistpenetration
emaximumtimesuchclothingcanbeworn
ummerandabout30 minutesinwinter.
vesicants(mustard,lewisite,etc.)from
psshouldbetaken:
onsaservicegasmaskanda complete
eitherpermeableorimpermeabledepending
ation,mustbeworn.Immediatelyafterremov-
thwithsoapandwater(preferablyhot)must
havecomeincontactwithliquidorvapor
orofmustardhasbeeninhaled,it isimperative
asuresbegivenwithin5minutesto beeffective
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
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-15
ust bepromptforlittlecanbe donelaterthan
posure.
esicants(mustard,lewisite,etc.)orby
lvesicants,etc.)shouldbeimmediately
inatedarea.
emovethecontaminatedclothing.Ifthe
ashtheeyesandrinse thenoseandthroatwith
aksodiumbicarbonate,orcommonsaltsolu-
areas wetwithliquidmustardshouldbe
dlyswabbedwithasolvent,suchaskerosene,
etrachloride.Thenwashthoroughlywith
.Toreducehis oxygenrequirements,make
phimwarmand givehimnonalcoholicstimu-
tea.Heshouldbeevacuatedassoonas possible
uctionstosupplementtheabovegeneral
inFM21-40.
entsexposedtovesicants.Ifimpermeable
dtovaporonly,it maybedecontaminatedby
referablyinsunlight,forseveraldays.Itmay
ngfor2 hours.Ifimpermeableclothinghas
quidvesicantgases,steamitfor6 to8hours.
devicescanbeimprovisedfromequipment
materielofdirtthroughthe useofsticks,
othercleaningitemsusedin decontamination
mmediatelyaftertheiruse.
terieliscoatedwithgreaseor heavyoil,
minationisbegun.Forthiscleaninguse
otheravailablesolventsforoil, appliedon
f sticks.
ntedsurfacesofthematerielwithbleach-
gequalparts byweightofAGENT,decon-
e),andwater.Solargea proportionof
dtothewaterthat onlyasmallpart isdis-
sion,or"slurry"isformed.Thisslurry should
es.Washoffthoroughlywithwater,thendry
tsof materielthathavebeenexposedto
ndlewisitemustbe cleanedassoonaspossible
ng,orALCOHOL,denatured,andwipeddry.
oatedwithoil.
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
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HEMICALS
tsand instrumentsexposedtomustard
aminatedwithAGENT,decontaminating,
partsolidto15parts solvent(ACETYLENE
ht.Ifthisis notavailable,usewarm
gslurrymustnotbe used,becauseofitscorro-
etalparts.Afterdecontamination,wipeall
atthemlightlywith engineoil,exceptthe
ichmustbecoatedwithOIL,lubricating,
mentlensesmaybecleanedonlywithPAPER,
mountof ALCOHOL,ethyl.
ating(chlorideoflime)isnot available,
ilycleanedwithlargevolumesofhotwater.
nginjointsor inleatherorcanvaswebbing
cedureandwillremainaconstantsourceof
anbe properlydecontaminated.Becauseall
materielliesunchangedontheground,the
kedwithwarningsigns beforeabandonment.
bingthathasbeen contaminatedshould
thbleachingslurry.Ifthistreatmentis believed
essarytoburnor burysuchmateriel.
beenexposedtovesicantgasmustbe
efiring.TocleanammunitionuseAGENT,
osive,orifthisis notavailable,strongsoap
aning,wipeallammunitiondrywithclean
deredAGENT,decontaminating(chlorideof
natingcertaintypesofmaterielonor near
flamingoccurswhenittouchesliquidmustard.
ndecontaminationiscontainedinFM21-
SFORAUTOMOTIVEMATERIEL.
subjectedto gasattackwiththeengine
anerbyremovingtheoil, flushingwith
drefillingwiththeproper gradeofoil.
dbecleanedin thesamemannerasinstru-
eatcushions.
entsthoroughlywithbleachingslurryis
einthefield.In warmweather,operatorsshould
or slowvaporizationofthemustardorlewisite.
eriorsurfacesofthevehiclewithbleaching
necessaryafterthisoperation.
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
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-15
nstructions
NMAINTENANCE
48
ENANCE.
ntenanceandrepairbythe crewand
msisdeterminedbytheavailabilityofsuitable
saryparts,capabilitiesofthemechanics,time
situation.Alloftheseare variableandnoexact
eprescribed.
ce.Indicatedbelowarethemaintenance
arts havebeenprovidedfortheusingarm
mentsandrepairsaretheresponsibilityof
ersonnelbutmaybe performedbyusingarm
ancespermit,withinthediscretionofthecom-
onsandwordsasusedinthislist ofmaintenance
ollows:
ganizationregiments,battalions,companies,
tecompanies.
celightmaintenancecompanies,ordnance
mpanies,ordnancedivisionalmaintenance
nceshops.
nceheavymaintenancecompanies,andservice
cebaseregiments,ordnancebases,arsenals,
s.
stsofservicing,cleaning,lubricating,tighten-
tsandnuts,andmakingexternaladjust-
of subassembliesorassembliesandcon-
tsofremovingthepart,subassemblyoras-
romthevehiclesandreplacingit with
conditionedorrebuiltpart, subassem-
erthecasemaybe.
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
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NMAINTENANCE
ofmakingrepairsto,orr eplacementofthe
assemblyorassemblythatcanbeaccom-
withoutcompletelydisassemblingthe
rassemblies,anddoesnot require
,machining,fitting
.
sofcompletelyreconditioningandreplacing
eableconditionanyunserviceablepart,
mblyorassemblyofthevehicle,including
ting,machining,fitting,alining,bal-
sting.
edwillnormallybeperformedinthe
Operationsallocatedtotheechelonsasindi-
mplishedbytherespectiveechelonsinemer-
adjustandreplacex
x
Ex
ch,steering,transmission,
handlowrange)]—
ch,steering,transmission,
handlowrange)]—
acex
irx
ildEx
MISSION
djust)x
pairandreline x
on(highandlowrange)
on(highandlowrange)
on(highandlowrange)
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
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-15
(generatorcontrol)—
(generatorcontrol)—
(generatorcontrol)—
battery—replacex
battery—repairEx
aceandrepairx
eplacex
—replacex
—repairx
bly—replacex
bly—repairx
bly—rebuild'.x
onbox—replacex
onbox—repairx
—replaceEE x
adjustandreplacex
ndition)Ex
erviceandreplacex
pairx
ondition)Ex
—replacex
—repairx
e* x
x
dEx
nes—serviceandreplacex
uthorizedtoremoveandreinstallenginetransmissionassemblies,
ferentialassemblyandotheritemsmarkedbyasterisk.However,when
n itemmarkedbyanasteriskwitha neworrebuiltpart,sub-assembly
mblymarkedbyasteriskwill notberemovedfromthevehiclebythe
orizationisreceivedfromahigherechelon.
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
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NMAINTENANCE
nes—repairx
acex
arx
ud(recondition)Ex
ead,manifold)—replacex
placex
pair-....x
buildx
—replaceEx
—repairx
—rebuild(recondition)...EX
nternal—replaceand
keassembly—replace...x
keassembly—repair....x
—replacex
—repairx
—rebuild-..x
e(clean)x
eandrepairx
eEEx
placex
pairx
buildx
aceandrepairx
ildEx
eplacex
epairx
ebuild...x
BLY)
eplace'.x
bly—replacex
pairx
buildx
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
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-15
pairx
—replacex
TEM
eandrechargex
x
dEx
eplacex
epairEx
replacex
repairx
rebuildx
lacex
airx
uildEx
x
ndition)Ex
y—replacex
y—repairx
y—rebuildEx
S
eplacex
epairx
ebuildEx
,external—replacex
,external—repairx
rsaljoints—replacex
rsaljoints—repairx
rsaljoints—rebuildEx
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
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NMAINTENANCE
ex
x
Ex
aceandrepairx
uildEx
ortingroller—replaceand
wheelandidler—replace..x
y—replaceandrepairx
—rebuildEx
cex
rx
ldEx
replacex
repairx
rebuildEx
ndrepairx
Ex
placex
pairx
buildEx
Y
replace* x
repairx
rebuild.. Ex
ithserviceableassemblies)xE
thorizedtoremoveandreinstallenginetransmissionassemblies,
ferentialassemblyandotheritemsmarkedbyasterisk.However,when
n itemmarkedbyanasteriskwitha neworrebuiltpart,sub-assembly
mblymarkedbyasteriskwill notberemovedfromthevehiclebythe
orizationisreceivedfromahigherechelon.
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
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-15
MJ881A
HKMJ53
AC300
6A
G4
UMS40
S196
aringBKMJ270
pointAEE38
ectric,setWMS1285P
heelbearingnutSD903856
MS1090
reextinguisheris carriedonabracket
enginecompartmentbulkhead.Aretaining
hedcatchisused tokeepthefireextinguisher
thefireextinguisher,pullout onthecatch
pand pulltheextinguisheroffitsmounting
0degreescounterclockwisetounlockthepump,
rd.Pushingin onthehandleforcesastream
calfromthenozzle.Bypumpingthehandle
eforcedfromthe nozzle.Thestreamshould
aseof theflame.Aftertheblazehasbeen
playastreamonthesurroundingarea. After
aysmakesurethehandleis pushedalltheway
degreestolock thehandleinthehead and
isnotdonethe fluidwillleak.Thefire
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
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oput outafirein theenginecompartmenteven
g.
erhas beenused,refillitat thefirstop-
uid(CARBONTETRACHLORIDE).After
t leakafterthevalvehasbeenturned com-
ngextinguisher.Theextinguisherisfilledby
thehead.Useasmallfunnel whenpouringin
iscouragetampering,thedrivershouldseal
hissealduringinspections.
tingiusherfluid(CARBONTETRA-
einvaluableindryingoff sparkplugs,the
c.Whenwiringandignitionunits havebe-
timedoesnotpermitsystematicdryingwith
TETRACHLORIDEwillabsorbmoisture
onapparatusorengine.
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
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RTSANDACCESSORIES
51
EPARTS.
arepartsissuppliedto theusingarmfor
partsmostlikelyto becomebroken,worn,or
Thesetiskeptcompletebyrequisitioningnew
nizationsparepartsare listedinpertinent
lsandequipmentrequiredforsuchdis-
ngastheusingarmsare authorizedtoperform,
eservationofthe armament,ammunition,etc.
compartments,covers,toolrolls,andother
tthematerielwhenitis notinuse,or when
ouldnotbeusedforpurposesotherthanas
nuseshould beproperlystored.
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
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data53
d57
BULATEDDATA.
eispoweredwitha6-cylinder,L-head,
fanendoftheenginewill bereferredtoasthe
clutchendasthe frontendoftheengine.The
edto astheleftside,and thegeneratorside
ine.Thecylinderhead,block,andcrankcase
anbelt,waterpump,generator,fuelpump,
r,air cleaner,diluter,manifoldheatcontrol
rkplugsareaccessibleonraisingthe engine
17,and18).
00rpm
0Viqt
418Ib
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
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-15
R
PORT
de
gine.
remov-
ole-
g
ar.
erswitch
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
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ER
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
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-15
nal
d
m-
pushed
as
esole-
after
nd
r(par.
TERVALVE
PORT
e
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
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ercircuit.
ed,or
gine
essing
ck
31).
r.65c).
ndcon-
ine
re-
rade
o Start.
oslow.
scon-
trol
d.
plugs.
aulty
ec-
ewet,
rwet,
akor
dirtyor
tment.
r.65c),
09).
ontrol
ottle
ded
nend
m
ceor
l)or
par.
orre-
e.
bstitute
)
place
iced,
ust
.
ar.
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
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-15
mp
ust-
eor
venly.
ed.
sfiring,
ected.
rned,
ough
rectly
entin-
edor
or be-
nifold.
ng.
gor
es-
nsfuel,
eat
mp
p-
at
n
par.
tallpipe
61b).
con-
units
tasre-
ceplug
ry
ar.
emix-
.
61b).
gorre-
par.
opping
e-
snot
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
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e
ticking.
ng.
tion
and
ksat
pes,
ze
ose
orfit-
ve
ension
75d).
with
ar.60
cceleration.
efuel,
sitsin
djust
se
ve
,
urringaty>CrankshaftSpeed.
lve
mit-
rein-
ump
orbear-
torshaft
wsto
ce
ne
erator
or64
0a).
urringatCrankshaftSpeed.
dbear-Replaceengine(par.55).
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
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-15
CrankshaftSpeed.
Replaceengine(par.55).
donAccelerationUnderLoad.
gine(par.55).
WRENCH,
ENCH,
H,
CH,
nateWRENCH,
ENCH,
pfromVehicle
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
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moval
WRENCH,socket,universal,
Vi-in.
WRENCH,socket,universal,
-,0-in.
ehicletop fromthewindshieldframeand
vethetop(fig.19).Takeoutthe 4cotterpins
owsoutof thesocketsweldedtotheinside
tthebowhaving4eyeletsat thetopandmiddle
nd,9/16-in.
strapsandremovethecushions.Takeout
andlockwashers(%6-in.open-endwrench)
hecockpit.Notethe3possiblefrontseat
etheseatfromthecockpit(fig.20). Takeout
spins(pliers)holdingtheassistantdriver's
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
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-15
andClutchControls(PropellerShaftand
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
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rtmentFrontScreenRemoval
ckets.Lifttheseat outofthebrackets,tipit
mthecockpit.
andDisconnectTransmissionand
H,box,V2-in.
'/,,i-in.
% 6-in.socketandratchethandle)withflat
andremovethepropellershaftcover.Note
ngononeside ofthecovergoestothe right
nuts(Vi-in.box wrench)withlockwashers
andmovethepropellershaftassemblyfor-
onmainshaft(fig. 21).Installadummy
thetransmissionmain shafttopreventlubri-
gineisraised.Disconnecttheclutchandtrans-
kagebyremoving3cotterpinsand clevispins
hreleaseshaftouterleverreturnspring.
rtmentFrontLidScreen.
open-end,%-in.
enginecompartmentfrontlidadjustingarm
ndmovethelid,to acompletelyraisedposition.
rewsthatsecurethefrontlid screentobrackets
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
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-15
ntlidhingesupport,usinga 3/8-inchopen-end
w thebracketandascrewdrivertoturnthe
hescreen(fig.22).Notethata lockwasher
etweenthe nutandundersideofthebracket;
s usedbetweenthescreenandtopsideof the
egroundingatthesepoints.Repeattheopera-
ngthefrontofthescreento bracketsonthe
ge.
rtmentLid.
H,socket,%0-in.
artmentlidandhingesupportbytakingout
-in.box wrench,and%6-in.socketandratchet
s(2oneachside),whichhold thelidhinge
3).Liftoff thelidandhinge assembly.
rtmentFrontLidandHinge.
-in.
n.
cketcapscrewsand lockwashersateach
open-endwrenchonthefront 2screws,and
sal,
rtmentLidRemoval
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
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atchethandleontherear2 screws).Remove
andflatwasher,securingeachend ofthelid
oanangle bracketweldedonthedeckcoaming
7iu-in.socketwrench,andratchethandle).
lockwashers,andflatwashersholdingthe
ead(Viz-in.universalsocketwrenchand
dwithhinge andcrossbracketoffthevehicle.
atclampscrew(screwdriver)andremove
assembly.
rtmentCoverandDisconnectBattery.
NCH,open-end,"/,0-in.
H,socket,'/,,;-in.
ENCH,socket,V2-in.
atwashers,andlockwashersholding the
vertothedeckrearcoaming(yJ,i-in.open-end
twrenchandratchethandle).Removethe7
wrenchandratchethandle)withflatwashers
ngthecovertotheenginecompartmentleft
deckcoaming.Lifttheinsulatedbattery
ard,totheright,andoutofthe enginecompart-
partmentCoverRemoval
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
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-15
andremovethebatterygroundstrappost
)atthenegative(—)poston thebattery,
nateSCREWDRIVER
mdrainplug(screwdriver),locatedonthe
eadofthecrankcasedrainplate.Afterturning
tstoptounsealthe coolingsystem,openthe
outlet pipelocatedinthelowerleft rear
partment.Also,opentheengineblockdrain
heenginetowardthefront.Loosenthe battery
amps(screwdriver)andpullthehosesoff
ezeis inusein thecoolingsystem,savethe
systemhasdrainedcompletely,closethe
drainvalves.Installthe coolingsystemdrain
EAD,white,basic-carbonate,forapositive
rely.
EWDRIVER
H,socket,1-in.
nate
rainhullplatescrews(screwdriver),gasket,
pandrain plug(1-in.socketwrenchexten-
Aftertheoilhas drained,installtheplug
plategasket,plate,andscrews,applying
nate,tothepartsto obtainapositiveseal.
StarterSolenoidSwitch,Regulator,
molitionBombCase,andDemoli-
fig.25).
NCH,open-end,%6-in.
H,open-end,V2-in.
CH,socket,7/16-in.
socket,universal,
n.Vie-in.
leatthestarter solenoidswitchaftertaking
and 3/8-in.open-endwrenches).Remove
onthecurrentandvoltageregulatorand
r).Benddowntheclipontheoffsetat the
fastentheprimerlinesfromthebulkhead.
driver)andnut(%6-in.open-endwrench)
ndchoketubecliptothebulkhead.Takeout
socket,universal,andspeederhandle)holding
hebulkheadtothe bulkheadframe.Remove
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
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moval
ver)andcliptofreethe demolitionwireson
urnand pullouttheplug onthebottomof
olswitchboxandremovethewire running
mtheplug.Removethenut,(~/\<i-in. open-end
ench,extension,andratchethandle)lock-
ullthewiringharnessclipoffthe boltto
therearof thebulkhead.Pushtheloose
eholein thebulkhead.Liftoffthebulkhead
h,regulator,fireextinguisher,anddemolition
FanBladesandPulley,andRadiator
EWDRIVER
H,socket,V2-in.
thlidandspongerubber gasketafter
ws(1/2-in.socketwrench,andratchethandle),
hers,whichsecuretheair ducttotherearof
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
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-15
tadrainplug (Vi-in.head)islocatedinthe
ANDPULLEYANDRADIATORWITHFAN
outlinedin paragraph74c.Removethe4
wrenchandratchethandle)holdingthefan
aterpumpdriveflange.Liftthebladesand
fromwithinthefanshroud,andoff the
orinletupperbaseclampandupper outlet
andpulloffthehoses.Pull offthecylinder
n valveintheradiatoroutletpipe.Using a
,Vi-inchsocketwrench,andpaper,withinthe
swhenloose,removethe6 metalscrews
adiatorflangestotheradiatorframeof the
emoval
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
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/ 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
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-15
roud upwardtoclearthewaterpumpdrive
eassemblyinsucha mannerastopermit
drain valvetoclear.
p,EngineBearMountings,and
NCH,open-end,%6-in.
H,open-end,V2-in.
nd,3/4-in.
socket,V2-in.
undstrapfromthehull (Vi-in.open-end
tension,andratchethandle)byremovingthe
d lockwasher.Takeoutthecotterpins
castellatednuts(3/4-in.boxwrenchand
andflatwashersattheenginerear mounting
ectthewiresatthegeneratorterminals
screwdriver,and%e-in.open-endwrench).
tIndicator,OilPressureGage,Primer
gnitionCoil.
nWRENCH,open-end,T/l,i-in.
n.WRENCH,open-end,%6-in.
n.WRENCH,open-end,s/8-in.
orelementattheright frontsideofthe
n-endwrench).Disconnecttheoil pressuregage
(%6-in.and %,;-in.open-endwrenches)
ne.Disconnecttheprimer suctionpipeatits
ndVi-in.open-endwrenches)abovetheNo.6
nnecttheprimerpiperunningtothe intake
nnection(3/8-in.open-endwrench).Discon-
eat thelowerendofthe flexiblecoupling,using
chonthecouplingandaVi-inchopen-end
sconnecttheharnesswireat theignitioncoil
ThrottleControls.
driver)holdingthethrottlecabletubeclip
sconnectthecarburetorthrottlevalvecontrol
kspringand thecabletothethrottlevalve
tthecarburetorchokecontrolafterloosening
vel-clamp-screwandcable-clamp-screwatthe
driver).
open-end,%0in.( 2)
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
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wo%6-in-open-endwrenches)which
amptothe supportbracketattheleftfrontof
theclamp(screwdriver)andpullthe section
rdandoff thelowersectionoftheexhaustpipe.
tSupport.
NCH,socket,%6-in.
%6-in.socket,extension,andratchethan-
chholdtheenginefront support(transmission
.
KM
ewsNo.9andNo.10(see cylinderhead
.33)witha Ji/i6-inchsocketwrench,exten-
nstallengineliftingeye bolts(HKM-J53)in
d screwsremoved.
ngClutchandTransmission).
yebolts. Fastenhoisttothechainand,after
wires,cables,lines,andconnectionstothe
endisconnected,slowlylifttheweightofthe
ortbracketsandhull frame(fig.28).Move
val
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
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-15
Removal
y,thenupand outofthecompartment,guiding
nguncoupledpipes,wires,andcontrols.
efullpressureenginelubricationsystem
p connectedwithafloatingoilintakescreen,
nderblock,anoil pressurereliefvalve,an
18).Theoil pumpislocatedontheleft side
umpcannotberemovedasa unit,thevarious
othecylinderblock.Helicalgearsareused,
thecamshaftthroughhelicalgearing.
n.
6-in.
n.
-in.
n.
n.
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
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irectedin paragraph55.
evelgage withcap.
etwrench,ratchethandle,anda9/J6-inch
ethe3bolts,nuts,andlockwashersattaching
enginefrontplateandclutchhousing(fig.18).
heengine.
ewsandlockwasherswhichsecurethe
kcase(Vi-in.socketandspeederhandle).
itloosefromthe gaskets(fig.29).
ontactingsurfaces,usingaputtyknife.
rkseal fromtheoilpanfiller blockandthe
e frontmainbearingcap.
paragraph56h.
oceduretoinstallthe oilpan(fig.29).
yanduse newgasketsthroughout.The
thgasketcementtoavoidpossibleleakage.
secapscrewsuniformlytoassurea positive
neto theproperlevelwiththecorrectgrade
ASSAGES
eliefValveConstruction
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
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-15
ctfor leakage.Installtheengineasdirected
oil pumpintakepipecarriesafloating
oiltakenfromthetop surfaceoftheoilin the
hroughthesystem.Stopson thestrainerelbow
fthestrainer.Toremovethe strainer(engine
toremovetheoilpan (par.56e)andtake
whichholdsthestraineronthe intakepipe.
lpassagesaredrilledin thecylinder
stberemovedandcompletelydisassembled
galleries.
e.Thisplungertypevalveis locatedin
wtheleft rearenginesupportbracket.The
assagein whichaspringloadedplungerop-
n thelubricationsystem.Thevalveisnon-
gthenearesttiminggearcoverbolt,nut,and
wrenches)removethevalveplug(7/s-'m.socket
tchethandle)andgaskettomakethespring
g.30).Thetiminggearsare lubricatedwith
alveas wellasfromoilmeteredthrougha
y.Themilitarystandard,replaceable
teris mountedwithbandstoaverticalbracket
portionofthecylinderhead.Theunit filters
disconnectedinthesystemby alinefrom
urntotheoil supplyintheoil pan.
ATION.
s directedinthe"Lubrication"section(V),
in.open-endwrench),coverwithspring,and
plug(yi,i-in.open-endwrench)atthebottom
e todrain,reinstallthedrain plug,andlift
1). Installanewelementandgasket,then
he coverplug.Tightenthecoverplugwitha
h(7-inchlength)untiltight.Theengineshould
nd surroundingareacheckedforoilleakage.
ointandthe tightnessofthedrainand cover
REMOVAL.
ter assembly,disconnecttheoutletpipe
n.open-endwrench).Disconnecttheinlet
ench)fromthefilter.Removethe4filter mount-
s,andlockwashers(Vi-in.open-endwrench
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
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dgeRemoval
xtension,andratchethandle).Holdthefilter
movingthe lastbolt.
semostoftheoperationofthis vehicle
wtemperaturesprevail,therewouldnormally
nstartingduetohigh internalresistancere-
gineoil—especiallyafterahaltofseveralhours
mbatthishazarda diluterhasbeenprovided
leliminatedifficultyinstartingdue tocon-
emconsistsofa smallfuelreservoirof1-quart
fromthefuelpumpto thereservoir;andpiping
oilpan.Sincethediluterreservoirdependson
dthediluentis tobemixedwiththe engine
eratedbeforestoppingtheengine,whenahalt
rlonger isexpected,andtemperatureisbelow
eoil dilutionchart,par.56j shownbelow).
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
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-15
alveisso arrangedthatwhenthehandleis
edandthe diluterisneutral(fig.18). When
erclockwise(lowerendtowardtherear),the
lflowintothereservoirfrom thefuelpump.
clockwise(bottomofhandletowardthe
ndtheoutletisopenedto permitthegasolineto
iluterisoperatedbeforestoppingthe engine
belowdiluter)counterclockwisetothe
olinewill flowintothereservoirfromthe
arkonthediluterfloatindicatorstem
r,Vipint ofgasolinewillhavebeenpumped
efourthmark onthestemhasbeenexposed,
rtcapacity).Turnthevalveclockwisetothe
ertical)tostoptheinflowof gasoline,other-
flow.
movethevalveclockwisetothefull
willallowthe gasolineinthereservoirto flow
stemoftheindicatorhas recededintothe
voiris emptyandthevalvehandlecanbe
position(inlet andoutletclosed).
tidlespeed for5minutesafteroperating
oughlymixtheengineoil withthegasoline.
vewhenthevalvehandleisin avertical
ectmoregasolineintothe oilpanthan
uartshouldbeinjectedasoutlinedpreviously
edasrequiredtoprovide dilutionexactlyin
hart.
Diluent
echart ispredicatedontheuseof OIL,
accordancewiththeoilrecommendationsfor
tmustbebornein mindbythedriverthat
of theengineoilhasbeen provided,4hours
requiredto "crackoff'(dissipate)thegaso-
ftheengine waslaststoppedwhenthe
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
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reesF,thedilutionwas30 percent(IViqt),
peratedforonly2hours,half (3/4qt)ofthe
theoil.Onagaindilutingat theendofthe
rtoffuel mightbeinjectedintotheoil pan
operpercentageofdilutionforthetempera-
ure tore-diluteonlytothe extentmen-
ngthe nextstartwith45percentdilution
lution ascalledforonthe chart.Ifsuch
meaftertime,enginelubricationwouldsuffer
verylikelyoccurtoengineparts.Keep arecord
tedoil isinuseand calculatesucceeding
g protectionrequired.Whenusinggasoline
eratedbytheoperatingenginewillcausethe
issipatedthrough theexhaustsystem.Inthis
yoftheengineoil willbefullyrestoredafter
venthoughthis isadistinctadvantagetothe
,itwillbeabsolutelynecessarythattheoil be
operatingperiodintemperaturesrequiring
ualover-dilutionmayarisefromthe useof
eengineisnotoperatedfor asufficientlength
egasolineindilution.Referto theexample
ussedpreviously.Thediluterrequiresnospecial
comesnecessarytoremovethediluterfor
sconnecttheinletandoutletpipeat thevalve
removethe4bolts,(V-i-in.open-endwrench,
ension,andratchethandle)flatwashers,lock
urethereservoirstraps tothebracket.Ifneces-
movedfromthereservoir(screwdriverand
.
MANIFOLD.
edin paragraph55aifengineis tobe
bly.
hclutchandtransmissionasoutlined in
involvingremovalofthemanifoldor adjust-
ired.
gwiresas outlinedinparagraph59.
viously,loosentheupperradiatorhose
ndpulloffthehose.Removethe2 cylinder
ocketwrench,extension,andratchethandle)
wateroutletelbowto theheadandremove
sket,thermostat,andsleeve.Scrapeoffthe
sketto theoutletflangeusingGREASE,
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
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-15
egasketin positionwhileinstalling.Also,
shoulderwithinthewateroutletelbow.
cylinderheadscrews(n/46-in.socket
tchethandle).
he cylinderheadandgaskettoavoid
ves.Scrapeoffallcarbonformationon the
enttoCylinderHeadGasket
CapScrewTighteningChart
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_
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inderHeadScrewswith
nletline atthefuelpump(3/8-in.open-
hemainfuellineatthe fuelpumpelbowfitting
disconnectthebreatherpipeat themanifold
erfitting(s/8-in.open-endwrench),anddis-
uellinefromthe fuelpumptocarburetorbowl
).
studnuts (%6-in.boxwrench)and
anifoldassemblywithgasket.Checkthemani-
utlinedin paragraph61a(1)and freethe
on.
raph55a.
1
ad gasket,applygasketcementonthe
eadandthe bottomfaceofthegasket(fig.
proceduretoinstalltheparts removed.Make
on topofthepistonsbeforeinstalling the
e,basic-carbonate,mustbeappliedtothe
screwsbeforeinstallation.Allcylinderhead
nal tighteninginthepropersequence,asgiven
tensionwrenchAMM-1toatensionof
g.34).
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
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-15
exhaustsystemconsistsofamufflerwith
nexhaustpipe(fig.35).Themufflerismounted
npositionbytwoclampbrackets.Oneofthe
sistsoftwosolidpipe endsandaflexiblepipe.
andflangedatoneendfor attachmenttothe
esRemoval.
NCH,open-end,%6-in.
H,open-end,V2-in.
RENCH,open-end,%6-in.
ENCH,socket,V2-in.
n.
s,lockwashers,and flatwashers,(7/l6-in.
en-endwrench)thatsecurethemufflerguard
LBOW
APD49303
mParts
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
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ufflerrearclamptodeckbolt andlock
rench).Loosenthebolt,nut,andlockwasher
emuffler(V4-in.socketwrench,extension,
open-endwrench).Removetheclampfrom
ufflerfrontclampboltandlockwasher
Loosenthebolt,nut,andlockwasherclamp-
sectionto themufflerfrontpipe( Vi-in.socket
ethandle,andVi-in.open-endwrench).Remove
ews(3/8-in.open-endwrench)thatsecure
asketretainertothedeckcoaming.
nut,andl ockwasher('-'ir,-in.boxwrench
ch)clampingtogethertheupperandlower
e.Removetheuppersectionofthe exhaust
ss nuts,andgasket(two%6-in.open-
helowerexhaustpipeflangetothe manifold
exhaustpipe.
s andgaskets(%0-in.boxwrench)at-
bowtothe manifold.Removetheelbow.
esInstallation.
erparagraph58 h.
eps,usenewgasketsat thelowerexhaust
e,theelbowto manifoldflangeandtheexhaust
.
chWRENCH,sparkplug,* %6-in.
raisetheenginecompartmentlid,dis-
blebypullingtheL-shapedsuppressorter-
arkplug.Afterremovingtherubberumbrella
ocketwrench(i:)/le-in.)andhandlefrom the
heplug andgasket.Priortotheremovalof
blowalldirt andgritoutof thesparkplug
urroundingthe recess;otherwise,whenthe
e nothingtopreventforeignmatterfrom
useeventualdamagetothecylinder,piston,
308W
becleanedat3,000-mileintervalsby
nthe porcelainwithanythingthatwill
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_
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-15
rkPlugGapGageSN-308W
ntisnecessaryto providethepropergap
nded(outer)electrode.Usewire-typegage
ap.
raph59aand h.
re installed,checkthegapbetweenthe
pgageSN-308W)andadjustthemto 0.025-
rethenewgasketis onthethreadedendof
hegaskettowardthecylinderhead.Make
of dirtonthemachinedsurfaceofthe cylinder
sparkplugrecessand,usingthespark plug
uginuntil thegasketcanbefeltto compress.
sparkplugs;theyshouldbetightenoughto
more.)Installtherubbershieldand connect
makingsurethatit ispusheddownuntila click
ectioncanbeheard.
butormaintenanceinvolvesperiodiclubri-
actpointsalongwiththerotorandcap;and
gnitiontiming(fig.37). Refertoparagraph
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_
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UTOR.
n.
n.
.
hclutchandtransmissionasdirectedin
vascoverup toexposethedistributor
utorcapretainerclips.Movethe cap,still
ycables,toonesideand outoftheway.
he handcrankuntiltherotoris inthe
osition andthetimingmarkonthe rear
tlyunderthe pointerontheenginefront
renut(%-in.open-endwrench)and
heprimarywire,loosenthedistributorclamp
-in.open-endwrench),andpullthedistributor
e.
apandRotorRemoved
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_
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-15
ftEngagementPosition
LATION.
I-WRENCH,open-end,3/8-in.
yj0-in.
open-end,V2-in.
o.1 (rearcylinder)firingpositionand
atingtherotoruntil thedistributorshaft
ththeoilpump driveshaft(fig.38).Loosen
(%6-in.open-endwrench)andmovethe
ththepunchmarkonthe machineddistribu-
heselectorscrew.
elmark(UDC1-6) exactlyunderthe
plate, turnthedistributorbodyrightor left
heact ofseparating.Tightentheclampscrew
*/2-in.open-endwrench).
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_
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re,installthelockwasher,andtighten
rench).
capbothinsideandoutand installthe
atinglug engagestherecessinthedistributor
ersprings.Makecertainthatthesecondary
ecaptowersandthatthe rubbershieldsare
tensiontowers.
clutchandtransmissionasdirectedin
-892isavailable,connectitin theNo.1
dstart theengine(fig.39).Runthe engine
rmaloperatingtemperatureisreached.If
snecessary,loosenthedistributorclamp
ionTimingwithLightWf1-892and Mirror
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
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-15
en-endwrench)andadjustuntiltheflashand
markisapproximately1%4-inchahead
eflywheel)areexactlysynchronized.Because
nviewingthetiming marks,amirrorcanbe
makingan accuratecheckofthetiming.
mpscrew.
ctorscrew(T/,,;-in.open-endwrench),and
butorslightlyclockwisetoadvancethetim-
oretardittoget thebestengineperformance
se.Tightenthescrew(fig.40).
butorcontactpointsarejudgedentirelyon
eringwhetherornottheymustbecleanedorre-
nofcontactpointsisindicatedbythe appear-
ace(similarto darkfrostedglass).Suchpoints
anedandneednotbereplaced.Ordinarily,ifthe
eed notbefiled,buttheyshould becleaned
ry-cleaning.Inaddition,thedistributorbase
nspectedforthe purposeofdiscoveringthe
eshould beeliminatedtoavoidfurthertrouble.
taneSelector
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_
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ndtheotherhasa slightprojection,thepoints
ullyandthensquaredbyfiling.Thegap must
0h (3)(e)below).Whenthepoints arecoated
thisisanindicationthat oxidationisoccurring.
thepointsshouldprovesatisfactoryforfurther
mstances,thecoilorcondenser,orboth,maybe
ontinuesitwillbeadvisabletoreplacefirst
or noimprovementisnoticed,thenreplace
rtestingthe coilandcondenserareavailable.
mentisathand, itcanbedeterminedwhich
enpointsarebadlypitted, burned,ortheir
undbyincorrectfiling,itispreferableto replace
mptsalvageby furtherfiling.
CTPOINTS.
ph60a(2)WRENCH,set,combination,
assemblyasoutlinedin paragraph60a(2 ).
pwardandoffthedistributorcamshaft.
8-in.open-endwrench)onthe primary
hepost,removethehairpin springholdingthe
ost,and pullthearmup andoutofthedis-
ontactarmspringfromtheprimarypostand
unscrewthecontactscrew(two1%4-in.
NTACTPOINTS.
raph60 h(2)
ALE,spring,HKM-J544S
ointTOOL,distributorpointalining,
wlocknutand contactscrewinthesup-
ose.
startingthe notchedendoftheflatarm
stbetweenthe squarebaseandthesquare
efiberinsulatori sinplacebetweentheflat
distributorbody.
ngoverthecontactarmpivotbearing,and,
andprimarypost, tightenthepostinnernut
tandarm pointdonotmeetin perfectaline-
tobendthesupporttoobtain alinement.Use
olAEE-38(fig.41).
wdriver)holdingthecondensertothe
e condenserattachingearsoutfromunder
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
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-15
tributorContactPointGapwith
A/inementToolAEE-38
oroughlythearea ofthedistributorbodyunder
he condenser.UseapieceofCLOTH,emery,
thebodyandcondenserinorderto estab-
ds.Reinstallthe condenserandtightenthe
ft untilthefiberrubbingblockof thearm
tofoneofthe camlobes.Adjustthegap(dis-
ator,UMS-40)betweenthepoint faceof
pointfaceofthe contactarmtoaclearanceof
ontactscrewinthesupport(fig. 41).Tighten
yandrecheckthegap.Withthe pointsto-
springscaleHKM-J544Snearthe pointend
onof 17to20ouncesshouldregister onthe
t angletothearmuntil thepointsjustseparate
otorwiththedistributor camshaftand
rasitwill go.
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_
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mblyasoutlinedunder paragraph60a(3).
Wherevercontactpointsareresetor
ngmustbecheckedbyeitherof thefollowing
HT.
htWEI-892in theNo.1(rear)spark plug
.The(IGN) markontheengineflywheel
twiththepointer ontheenginefrontplateat
t (fig.39).
ary,loosenthedistributor clamp(screw-
wrench)andturnthedistributor untilthe
kappearsinalinementwiththe pointer.Tighten
GHANDCRANK.
untilNo.1 pistonstartsuponits com-
ontinuetocrankengineuntil theignitionmark
timingpointeroftheenginerear plate.At
firing position.
aneor a0.001-inchfeelergagebetween
nts(pointsfullyclosed).
ngtoa pointwherethe0.001-inchfeeler,
s,can bewithdrawnwithonlyaslightdrag.
mpingbolt.
ributorBreakerArmTension
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
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-15
NGS
erValveConstruction
untilthemark(IGN) isagainalined
thedistributoras in(c)above.
nd cap,makingcertainthatallhigh-
yseatedintheir respectiverecessesinthedis-
ubbercableshieldsarepusheddownoverthe
coil islocatedattheright frontside
tedonabracketwhichissecuredtothe cylin-
adcapscrew(fig.16).Thecoilmaybe discon-
gh tensionwirefromthecoiltower,removing
whichrunstotheignition switchattheinstru-
therearwireto thedistributorafterremoving
3/8-in.open-endwrench).Checkthecoilusing
ethecoil,drain thecoolantfromthecylinder
inderheadcapscrew(1% 0-in.socketwrench
ecoilandmountingbracketoffthecylinder
ketcanberemovedfromthecoilif necessary
ches).Notethatflatandstarwashersare
ngboltandbracketanda lockwasherandnut
acket.
edistributorto coilandsparkplug
towithstandwearanddeterioration.If a
newcableof thesamelengthandquality
cialservicinginstructionsarerequiredother
e goodcontactisobtainedandthecoverboot
tor cap.
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
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xternaladjustmentswhichcanbemade
mixtureadjustment,throttlestop screw,and
TROLVALVE.First,makesurethatthe
eisfree(fig.44). Determinethisbyattempt-
ounterbalanceweight(atrearofheatriser).
dmoveeasilyandspringback.Ifthevalve
cessarytofreetheshaft initsbearings.To
oldasoutlinedin paragraph57a(7)and the
ws(Va-in.box wrench);thenremovethevalve,
ifoldHeaterValve
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
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-15
buretorThrottleStopScrew
yturningthevalveandshaftas necessaryfor
foldopening(fig. 43).Takeoutthecounter-
.open-endwrench),removethecounterbalance,
ingout oftheslotin therearendofthe shaft.
hecoverandreducethediameterof bothends
abrasive,sufficientlytofreeshaft.Cleanshaft
aceofgrit. Donotenlargethesteel bushings
withaprotectivescaleandif removedwillonly
shaft.Reassembletheshaft,thermostatspring,
e.Usinganewgasket,installthefrontendof
bushing.Installthecoverandthe2 capscrews
ovalprocedurewhenreinstallingthemanifold
Runtheengineuntiltheheat indicator
gisters175 degreesF,indicatingthatthe
ormaloperatingtemperature.Besure that
ywith thebuttonontheinstrumentpanel
hrottlestopscrew(screwdriver)untilthe
e(fig.45).Turningthescrewclockwisewill
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
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speed,whileturningit counterclockwisewill
eed.Adjusttheidle mixturebyturningthe
slightamountwiththefingers orascrew-
estidle performancepossible(fig.46).
Loosenthechokelinkagetocontrolwire
andpushthechokevalvealltheway open.
tonallthe wayinand,whileholdingthe
enedposition,tightenthe linkagecollarscrew
ire.Openandclosethe chokevalveandcheck
ox,3/8-in.
open-end,~,\0-in.
H,open-end,%0-in.
artmentcover.
bowto carburetorthroatclampscrew
osentheairintakeelbowsupport bracketby
dcapscrew(n^g-in.socketandflexhandle)
ngAdjustment
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_
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-15
okeControlAdjustment
upportbracket,andair cleanerforwardand
pullbackspringand removetheclevis
etocarburetorattachingclevis.
ontrolwirefromthechokeadjustment
e linkagebracket(screwdriver).
at thecarburetor(%g-in.open-end
-in.open-endwrench)andlockwashers
hemanifold.Liftoffthe carburetorassembly
Wheninstallingthecarburetor,reverse
duseanewgasket.Readjustthechokecon-
ndtheidlemixturescrew(par.61,a (2)(3)).
t.Toadjustthethrottlelinkage,first
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
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ew(par.61 a(2))untilthe ammeterjust
heacceleratorpedal,loosenthethrottle-
crewdriver)(fig.48)andresetthe collaron
assure fullthrottleclosingatthe throttle
haft operatingarmofthecarburetor.Ifthe
ncompletelyasindicatedbythe fixedstop
ingarm whentheacceleratorisfullyde-
e-control-wire-collar,loosentheacceleratorad-
/8-in.open-endwrench),andremovethe
terpinandclevispin(pliers).Turn theclevis
ffectivelengthofthecablein ordertoraise
ovidethepedaltravelrequired forfull
epinand anewcotterpin,tightenthe clevis
ttle controlwirecollartoobtaintheproper
n.Checktheadjustmentstomakesurethat
alisdepressedfully,thethrottlevalvefixed
ontactstheboss onthecarburetor;alsowhen
yreleased,thatthe throttlestopscrewisin
n thecarburetor.
nt.Withthehandthrottlecontrolbut-
tionagainsttheinstrumentpanel,loosenthe
r-screw(screwdriver).Holdthecontrolwire
torupperoperatingarmandtightenthe collar
ENTCLEVIS
ntrolsandLinkage
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_
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-15
tedParts
val.
n.WRENCH,open-end,%6-in.
surepipeat thegagebyuncouplingthe
rench)ontheundersideoftheinstrument
ipeenoughto beoutofthe way.
n.open-endwrench)andlockwashers
etopermitremovalofthe clampbracket.
faceofthepanel.
regageisnotadjustable.If itisdeter-
ccurateorinoperative,replaceitwithanew
ation.Reversetheremovalstepsto
movetheengine andcylinderheadto
sandvalvemechanism(fig.49).Reconditioning
of precisionrefacingandgrindingequip-
volvedareperformedonlybytrained ord-
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_
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e,thisappliestothereplacementofvalves,
velifterswithadjustingscrews.
ph55a.SCALE,spring,HKM-1336A
ENCHES,tappet,Vi-in.
r.55a).
nifold(par.57a).
erscrews(Vi-in.boxwrench),removethe
offthegaskets.UseGREASE,generalpurpose,
sonreassembly.
gscrewsfor eachcylindershouldbe
enginefiringorder1-5-3-6-2-4aseachpiston,
deadcenterbycrankingtheengine.Valve
tingthelifterscrewto valvestemclearance
,usingSD-AC300feelerstockandtwoVi-inch
Theclearancebetweentheupperfaceofthe
fthe valvestemisadjustedbyholdingon
Vi-inchtappetwrenchwhilethescrewis
therVi-inchtappetwrenchtoincreasethe
kwisetoreducetheclearance.Theself-locking
dAdjustingScrew
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_
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-15
veLifterAdjustingScrewTension
tionsatisfactorilywhenthereisa resistance
h-pounds(4-lbpullwhenmeasuredwith
ttheendof a6-inchwrench).Ifturning
erscrewis lessthanspecified(4poundspull
gscaleHKM-1336Aattheendof a6-inch
personnel.
oved,usingnewgaskets,byreversingthe
moval.
gine.
-G4
ch,
eenginevalvesandpiston ringscanbe
ompressiontestofeachofthe enginecylin-
tion,runthe engineuntilithas reachedits
ature(175F).Withtheignitionswitchin the
sparkplugs accordingtotheproceduregiven
e carburetorthrottlevalvebypullingthe
ward.InsertcompressiongageAEE-G4in
cylinderheadandcranktheenginewith
gagereachesitshighestreading(fig.52).If
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
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u s e # p d - g o o g l e
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y105poundsareobtained,thevalvesand
ondition.Ifthetestresults arenotuniformor
vedto belowbycomparison,makeacom-
eofficerin chargeortotheresponsiblemain-
mpletionofthecompressiontest,serviceand
directedinparagraph59band c.
tgeneratorusedinthis vehicleisahigh
untwoundtypehavinga40-amperecapacity.
merearoftheengine ontherightside.Two
egeneratorbodyandan adjustingarmwith
the generatorinanydesiredpositionas
neCompression—GageAEE-G4
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
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-15
eratorCommutator
edrivingbelt.Asidefrombeingmounteddi-
heenginecompartment,thegeneratoris
nwhichis weldedtothedrivepulleyand
wobrushesareused inthegenerator,one
utputof thegeneratoriscontrolledbythe
maturerunsonfullyhousedballbearings.
ont andrearbearingsinthe generatorend
ricationasdirectedin SectionV,"Lubrica-
whenoiling thegeneratorbecauseover-lubri-
ATOR.Periodicallyoratthelubrication
ratthefrontend ofthegeneratorbyloosening
rewdriver)andslippingthecoverforwardover
fig.53).Whenthecoverhasbeenremovedthe
canbeexamined.Thebrushesshouldseat
barsandthereshould beaminimumofarcing
otion.Ifthecommutatorappearstobeblack,
shes arewornbadlyandunevenly,orif there
hecommutatorrotates,replacethegenerator.
rty,it maybecleanedsuccessfullyinthe
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
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00,ina stripexactlythewidthofthecom-
the commutatorwhileitisrotating.Athin
hthickandthe samewidthasthecommutator
aperagainsttherotatingcommutator.Thetop
nedtowardtheenginesothatit hasatrailing
.Thestripofpapermust beofsufficientlength
yon thestickwiththesamefingers usedto
ottomovethearmor handintothepathof the
mutatorhasbeencleaned,positionthecover
wsecurely.
box,V2-in.
ENCH,open-end,V2-in.
artmentlid.
djustingarmpivotscrew(Vi-in.open-end
cylinderblock.Disconnectthebrown
blackwire(%6-in.boxwrench),andthered
.
mclampboltat thegeneratorrearend
nch).
ngebolts(Vi-in.open-endandVi-in.box
eneratortowardtheengine.Removetheadjust-
vethe adjustingarmupandoutof theway.
sand,whileholding thegenerator,removethe
r.
orpulleyfromthefan beltandliftthe
ecompartment.
Toinstallthegenerator,reversethere-
paragraph64c.Wheninstallinga replacement
bricatedadequately,connectedproperly,and
sionisadjustedasdirectedin paragraph74<1.
tstartingmotorisused tocrankthe
eenginefrontplateat theleftoftheengine by
throughtheenginefrontplateand theclutch
orcrankstheenginethrougha Bendixtorque
iscontrolledbya fingeroperatedpushbutton
anelanda solenoidswitchontheengineside
starterswitchbuttonis pushedthesolenoid
cmagnetdrawsheavyhighcapacitycopper
thestartermotorcircuitandset itinmotion.
closedandthestartingmotorarmaturestarts
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
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-15
unter-weightedBendixpinioncausesitto lag
erotationspeed.Thisactionresults inthe
eshwiththe gearteethontheouterrim of
epointwherefull toothengagementofthe
accomplished,aflangeonthe pinionhalts
entofthepinionandthearmatureshaft begins
.Torelieve theshockonthearmatureshaft
BendixDriveRemoval
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
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aheavycoildrivespring isemployedbetween
pinion shaft.Whentheenginestarts,the
wheelrelievesthetoothpressureof thepinion
ongpitch threadaswellasthe recoilofthe
onout ofmeshandforwardawayfromthe
ndixdrivepartsrequireno attentionex-
pt thoroughlyclean.Nooilisrequired.To
e,removethe4 screws(screwdriver)holding
eoftheclutchhousing.Removethecovercare-
gasket(fig.54).Wipethescrewdriverwith
ispresentontheparts, soakthedrivewith
dthenwipeawayalltracesof oil,grease,
on itisnecessarytoremovetheBendixdrive
soutlinedpreviously.Usingascrewdriver,
,andspring.With apunchandhammer,drive
rivepartstothestarter motorarmatureshaft
veparts offtheshaft.
ORBEARINGLUBRICATION(BULKHEADOFF
e rearofthestartermotor mustbepushed
earing asdirectedinsectionV,"Lubrication".
ation,returntheoilerlid tosealthelubrication
MMUTATOR.Examinethestartercommuta-
removed.Todo this,loosenthecoverband
r)attherearofthestarting motorandpushit
startingmotor.Ifthecommutatorisblack
arewornbadly,replacethe startingmotor.
ydirtyand thebrushactionandbrushesare
tarterfromtheengineandcleanthecommu-
s directedinparagraph64b(2) forthegen-
.
RENCH,open-end,9/]6-in.
irectedin paragraph55.
tthestarting motor(%6-in.open-end
utchhousingbolts,nuts,andlockwashers
in.boxwrenches)thatholdthestarterto the
chhousing.Liftthe startingmotorwithBen-
housingandawayfromtheengine.
nstalledbyreversingtheprocedurefol-
in paragraph65c.
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
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-15
N.
ph55a.
inthehullby reversingtheremovalpro-
pinsand lockwashersshouldbeused.
nate,shouldbeappliedathose connections.
ebeencompleted,fillthecoolingsystemwith
ewiththepropergradeofoil, totheirrespec-
eratetheengineandmakeacarefulinspec-
leaks.Checktheinstrumentsandcontrolsfor
helubricantlevelinthetransmissionandadd
required(sec.V,Lubrication).
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
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.
ueltankislocatedon ashelfwithinthe
herightsideandslightly abovetheengine.The
eby2band clampssecuredoverthetopofthe
mthe tanktothefuelpumpwhereit flows
nedthroughafinegauzescreenbeforeenter-
he carburetor.Asthefuelentersthecarburetor
enteringthecarburetorfloatchamber.
elpumpislocated,atthe extremeleftrear
mshaftleveland immediatelyinfrontofthe
pumpis actuatedbyaneccentricforgedand
hepumpmakesthefollowingonecomplete
softhe crankshaft:gasolineispulledfrom
servoironthedownstrokeofthe plunger,and
e carburetorfloatchamberontheupstroke
yoffuel tothecarburetoriscontrolledbya
ump bodywhichactstorenderthefuel pump
orfloatchamberisfull.
theprimerhasbeenoutlinedin paragraph8.
o startinginsubzerotemperatures,itis not
llrequire specialserviceotherthantokeep
primerconsistsofapump andasystemof
et.Whenthe pumppistonispulledrearward,
wnintothecylinder.Whenthepistonis pushed
ibutedthroughtheoutlet pipetothethree
nifold.
nerforcleaningtheengineintake airis
htlyabovethecarburetorin theenginecom-
byaclampto anelbowfastenedtothecar-
heelbowis supportedbyaweldedbracket
yacylinder-headcapscrew.Thecleanercon-
rts:the cover,thefilteringelement,andthe
eaneris discussedinparagraph72.
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
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-15
arts
Whenitis desiredtodrainandclean
vingitfrom thevehicle,proceedasfollows:
artmentlid,removethebatterycompart-
ctthebatterygroundstrap(par.55a (8)).
crewdriver)holdingthecrankcasedrain
vetheplateandgasket.
rainplug (3/8-in.open-endwrench),lo-
tank,attherear.
ringinagallonor moreoffuel;rockthe
einorder todislodgesediment.
ullplateandgasket.
edin paragraph55a(4),(5),(8),
:
open-end,V2-in.(2)
n.WRENCH,open-end,»/16-in.(2)
n.
mpartmentfrontlidscreen(par.55a (4))
entlidwithhinge(par.55 a(5)).
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
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mpartmentcoveranddisconnectthebat-
g(8)).
55a(9))and removetherearairduct,
(12)).
mppipeat thetankendofthe flexible
open-endwrenches).
ewireat thetankunitterminal(3/8-in.
arkerlightwi<*eatthe Douglasconnec-
eharnessclipsontheright deckcoaming
pen-endwrench).Movetheharnessaway
nk.
regulatortoremainfully connected,re-
kheadmountingbolts,nuts, flats,locks,and
endwrench).(Notethatthestarwashers
egulatorlegsand thebulkhead).Laytheregu-
heway.
nlet pipe(3/8-in.open-endwrench)and
and totheleftout oftheway.Disconnectthe
en-endwrench).Removetheoilfilterfrom
kingoffthe4 mountingbolts,nuts,flats,and
dwrenches).Carefullyraisethefuellinepipe
ovalRAPD49309
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
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-15
heway.
toadjustingarmcapscrew(V2-in.open-
erandlockwasherand,with thesametool,
stingarmpivotstudnut inordertoswingthe
k strapclampboltswithnuts,flats,and
dwrenches).Bendtheleftstrapsdownflat.
ward,to theleftoffits shelf,andraise
kthetankoutofthe enginecompartment
edin paragraph68b.
nstalled,GREASE,generalpurpose,should
rfacesonwhichthetankrests;this operation
kinto position.
d,itwill benecessarytoremovethescrews
efuelgagetankunitin ordertoinstallthe
newgasketshouldbeusedto avoidthepos-
s point.
nfor removal(par.68c)toinstall the
edin theoperation.Afterfillingthefueltank
yleakagewiththeenginerunning.
riveris abletotellat aglancethe
elinthetankby meansofanelectricfuelgage
the tankunit,andtheelectricalgagecircuit.
tmayberemovedfromtheinstrument
followingoperations:Usea%-inchopen-end
minalnuts and-locksonthebackofthe gage.
tfromthe rightterminalpostandtheblack
post.(Thereisho currentinthewireswhen
emovethe2 nuts(3/8-in.open-endwrench)
strumentpanel.TheU-clamponthegageter-
edandthe gagecanbepulledoutfrom the
onatthetankunitcan beremovedafter
re removed(3/8-in.open-endwrench).The
the flexiblecouplingnearthetankunit( Vz-in.
nches).Toreplacethetankunit,removethe
ichfastentheunittothe tank.
iencedwiththefuelgages anditis de-
rthedashunit ortankunitis atfault,make
s knowntobeaccurate.Thetestismade
ewirefromthevehicle'stankunit andattach-
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
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est unitmustthenbegroundedon thevehicle,
on,andthe floatofthetestunit raisedand
aisingandloweringthe floatofthetestunit,
operly,thereis anindicationthatthediffi-
fanothertestdoes notchangethesituation,
aced.Ontheotherhand,ifraisingand lower-
onthedashunit,the troubleliesinthe dash
case,thedash unitmustbereplacedprovided
edandconnectionscleanedandtightened.
EM.
ovaloffueltankis outlinedinpara-
ybe cleanedbydisconnectingbothends
orusingcompressedair,if available.
eenRemoval
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
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-15
pstrainer,proceedasfollows:
whencleaningthefuelpumpstrainer,
capanddisconnectthefuelpumpline atthe
pling(Vi-in.and %0~m-open-endwrenches).
eckat thesideoftheengine compart-
ed,loosenthefuelpumpbowlretainernut;
ardthe engine,andremovethebowl,gasket,
thebowlandcleanthestraineri nSOL-
ngsurethatallforeignmatterhasbeenre-
compressedairis available,blowthroughthe
eaningoperation.Wipeoutthebowl witha
osition,makingsurethattheendof the
thebowlcoverhasenteredthecenterhole
wgasketontheundersideof thebowlcover
trainer.
onwithitsupperrim againstthegasket
mpnut underthebowl.Tightenthenut
andlever tofillthebowl.This canbe
tingthecarburetorpipeatthecarburetorand
gasolinewillnotflowfrom theendofthe
owlandsupply pipearefull.
bowlscreenlocatedat therearofthe
nletpipefrom thefuelpump,proceedas
the screenplug(pliers)andremovethe
byturningit clockwise(y8-in.open-end
owlscreenbylooseningit withaVa-inch
atthebottomofthescreenand turningthe
tethescreenremovaloperationbyturningit
m thecarburetor(fig.58).
yimmersingit inSOLVENT,dry-cleaning,
compressedair.
oceduretoinstallthe screen,usinganew
f necessary.Installanewlockwirethrough
eedlevalvepassageplug attherearof the
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
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reenRemoval
n.
in.
n.
outlinedin paragraph55a.
uelpump pipeatthefuelpump inlet
ench).
mpoutletpipeat theoutletfitting( yjfi-in.
nletpipeat thefuelpump(3/8-in.open-
rinlet pipeatthepump(Vi-in.open-end
pscrewsholdingthefuelpumpto theside
socket,extensionandratchethandlefor rear
dwrenchforfrontscrew)andremovethefuel
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
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15
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
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edin paragraph70a.
replaced,changethefittingsfromthe
entunitand reversetheremovalinstructions
nstalling thepumpontheengine,the pump
alledto contacttheactuatingcamonitstop
usingGREASE,generalpurpose,tokeepthe
ne,start theengineandcheckforfuel
ons.
stableWRENCH,open-end,7/i0-in.
n.(2)WRENCH,open-end,1-in.
ecouplingnut attheprimer( 3/8-in.and
es)andtheoutletpipejamnut(3/8-in.open-
eratingbuttonatthe faceoftheinstru-
ounterclockwisewhileholdingthepumpshaft
lecrescentwrench).Loosenthelocknut
ehindthepanelfaceandturnoff the
rCleanerParts
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
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-15
eofthepanel.Slip theprimeroutofthe panel
ovetheprimerpipes,the procedureto
pe orpipestobe takenout;however,no
eded.
edin paragraph7la.
nfor removalwheninstallingtheprimer,
plingsaretightand noleakageexists.Avery
willrendertheprimerineffective.
ANER.
uretoraircleanerfilterstheairentering
sforconsistenttopengineperformancethe
icedasoutlinedin sectionV.
ovingtheentirecleanerassemblyorjust
t,itis necessary,first,toremovetheengine
een.Toremovethescreen,thecleanerfilter,
oceedasfollows:
artmentfrontlidand screwofftheleft-
sengagethelid supportsandpermitthecover
sible.
rtbracketsatthetopof thebulkhead,
acket(3/8-in.open-endwrench)whileturn-
r)extendingthroughthescreen.NOTE:Lock
etweenthe nutandundersideofthebracket;
washerisusedbetweenthetopside ofthe
s importantthatthesepartsbeinstalledin
ata goodelectricalgroundisobtainedbetween
3screensupportbracketslocatedonthe
ngecrosssupport.
bracketsandoutoftheway.
artmentlidandwiththe fingers,remove
hecleaner.Liftoff theaircleanercoverand
eentirecleanerassemblymayfirst bere-
ampscrew(screwdriver)locatedatthebase
Withtheclampscrewloosened,thecleanercan
ng tothecarburetor(fig.60).
estepsfollowedforremovaloftheunit
agraph72 b,makingsurethecleanerbase
ut,andenginecompartmentfrontlidscreen
rely.
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
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4
ystemof thisvehicleconsistsoftheradi-
at,andenginewaterjacket.Thewarmcoolant
uringengineoperationis utilizedinheating
eaterlocatedatthe bottomofthebatterycom-
throughwhichwaterfromthe cylinderhead
ewaterpumpwhenthe controlvalveonthe
mpisopen.
full,all ofthepartsofthe systemstand
neisstartedthecoolingsystempumpis like-
onissetup onlywithinthewaterjacketofthe
ewaterthermostaticvalve,closedattempera-
hereturn ofthefluidto theuppertankofthe
waterwithintheenginecontinuesonlyuntil
noughheatfromthe enginetobecomewarmer
ostat.Whenthisoperatingconditionisreached
open.Whenthevalvehasopenedfully the
ctedlyintotheradiatoruppertankand down
forthe coolingfinstodissipatetheheat and
emperatureof175F.
ubefor thebatteryheaterisconnected
nderhead,the heaterfunctionsbeforethe
cvalveopensandbeforeallofthe coolanthas
thecontrolvalveontheinletside ofthepump
pletecoolingsystemis10 V2U.S.quarts
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
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-15
HART
EMBLY.
T,i/2-in.
necompartmentlidtoitsfully opened
ononthefanbelt atthegenerator(cofthis
crews(Vi-in.socket,andratchethandle)
pulleytothewaterpumpshafthub. Remove
y(fig.61).
edin paragraph74a,alsothefollowing:
n.
AssemblyRemoval
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
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pulley assembly,itmaybenecessaryto
dditionalamountbeforethe fanandpulley
(Viz-in.socketandratchethandle).Thebelt
ningthe generatorhingeboltsbeneaththe
pen-endwrenches).Thenloosenthegen-
screw(*/2-in.open-endwrench).Pushthe
nginetoloosen thebelt.Whenthefanand
thegeneratorout(downward)awayfromthe
untilthereisa beltdeflectionof%inch,mid-
orandthefanpulley.Tightenthe adjusting
stingarmpivotscrew,andthegeneratorhinge
rewsare tightenedsecurely.Usingthevehicle
eatleast onecompleterevolutiontomake
etheshroudatany point,andclosetheengine
ENCH,open-end,Vi-in.
artmentlid.
waybetweenthegeneratorandthefan.
tment
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
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-15
than3/4-inchdeflectionatthis point,thebelt
hat istootightwill workahardshiponthe
pbearingswhileabelt thatistooloose will
verheatingandunderchargingofthebattery.
ngebolts(Vi-in.box andVi-in.open-end
ustingarmclampscrew(Vi-in.open-end
djustingarmpivotstudnut (Vi-in.open-end
rupwardtoloosenthebelt ordownwardto
vea deflectionof%inchmidwaybetween
ulley (fig.62).
djustingarmclampscrewwhileholding
rcorrectbelt tension.
ingebolts andtheadjustingarmpivot
ENCH,open-end,y2-in.
soutlinedin paragraph74c.
hegeneratorand fanpulleysand,after
ttom,forcethebeltoutbetweenthefandrive
llcrossmember.Workthebeltout over
ntheblades andshroud.
outlinedforremovaltoinstall anewbelt.
sionasoutlinedin paragraph74candcom-
T.
T,"/iG-m.
mas outlinedinparagraph76.Loosenthe
)andremovethecylinderheadtoradiatorhose.
handletowardthefrontandremovethe
rews(n/r,-in.socketandflex,handle)and
bow.
etelbowflangegasketandthe thermostat
mbly,fitnewgasketstotheflangeand sleeve
ralpurpose,tokeepthegasketsin place.
NDTHERMOSTAT(fig.63).NOTE:The
downward.Thethermostatmustbeinstalled
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
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ostatRemoval
otherwise,the valveactionwillberendered
eatingwillresult.
ftheoperationofthe thermostatis
t shouldbereplaced.Noattemptshouldbe
at.Totest theunit,immerseitin waterwhich
tedopeningtemperature(172F)ofthether-
oesnot starttoopenori fitsticksin the
ethethermostat.
edin paragraph75a.
ostat,makesurethesmallbreatherhole
,installationisthereverseoftheremovalpro-
bove.Makesurethedilutervalvehandleis
ard,sothatthediluterwillnot operatewhen
completingtheoperation,makesureno leaks
gasketandthatthethermostatis functioning
onwiththe enginerunning.
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_
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-15
artmentlidtothe fullyopenedposition
or captoitshalf-openposition.
stemdrainplug(screwdriver)locatedon
aheadofthecrankcasedrainhull plate.
valveat theradiatoroutletpipein the
e enginecompartmentandallowthecooling
.If antifreezeisinuse,savethe solution.
asdrained,closetheradiatordrain valve
inplug inthehullusing LEAD,white,basic-
oobtainapositiveseal atthispoint.
econnections(screwdriver)attheupper
hewaterpump.Pullthehose connections
terpumpinletpipe.Loosenthebatteryheater
)attheheatercoilendand pulltheheater
e coil.
ockdrainhoseatthedrain valveinthe
ortScrewRemoval
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_
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leyassemblyas outlinedinparagraph
xtension,ratchethandle,andpaperwithin
ewswhenloose,removethe 3metalscrews
e radiatorflangestothehull(fig. 64).Lift
tof theenginecompartment(fig.65).
epairedorreplaced,removethefan
torrequiresnospecialservices.The6
rtothe hullattheleft andrightradiatorflanges
leakagefromthe radiatorcoreisdetected,
dbeinstalledora fullreportonthe condition
dnancepersonnel.
edin paragraph76a,alsothefollowing:
natePUNCH,tapereddrift(2)
oval
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
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-15
ator,the flangeholesmaybeheldin
the hullthroughtheuseof 2shorttapered
eright andleftupperholeswhilethe lower
emainderoftheinstallationis completedby
ructions.UseLEAD,white,basic-carbonate,
ndtestfor leakswiththeenginerunning.When
twill befoundthatasmuchas agallonof
rtheenginehas operatedlongenoughtoopen
offtheair trappedinthecoolingsystempockets,
T,V2-in.
Vi-in.
artmentlidtoits fullyopenedposition.
he fanbeltasoutlinedin paragraph74c
adjustingarm.Removethefanandpulley
ragraph74a.
othehalf-openpositiontounsealthe cool-
oolingsystemdrainplug(screwdriver)onthe
eadoftheoilpan drainplughullplate.Open
he endofthelowerradiatorpipe andallow
pan).Thenshutoffthevalveand reinstallthe
nthe hullusingLEAD,white,basic-carbonate,
ositiveseal.Ifantifreezeisin use,savethe
ws(screwdriver)andpulloffthe hose
erpump.
ws(Vi-in.boxwrench)holdingthe water
.
passemblyandgasket.
rpumpshaftissupportedbyprelubricated
cationis requiredatthisunit.A nonadjustable
nleakagedevelops,thepumpshouldbe
edin paragraph77a,alsothefollowing:
16
erpumpmakesure theshaftisfreeand
oundwhenthepulleyhubis rotatedbyhand.
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_
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nstallthewaterpump,applyingGREASE,
skettohold itinplace.
withLEAD,white,basic-carbonate,and
enlyandsecurely( Vi-in.boxwrench).
oceduretocompletetheoperation.
mandif antifreezeisinuse,test thestrength
R,antifreeze,EDL116,addingnewsolu-
Operatetheengineandcheckforleaks.
lingsystemitwill befoundthatconsider-
ed afterthethermostathasopenedandthe
outofthesystemthroughthe upperradiator
opensandafterthegurgling soundandbub-
dadditionalfluidasrequiredto entirelyfillthe
etheradiatorfillercapcompletelytoshut off
ystem.
NCH,box,yj,;-in.
H,box,%,i-in.
open-end,~,\t!-in.
open-end,s/8-in.
artmentlid,takeoutthe 2bolts(7^t;-in.
wrenches)holdingthebatterycovertothe rear
vethe7capscrews(Vi-in.socketextension,
fastenthebatterycovertothe leftquarter
oaming.Lifttheinsulatedbatterycompart-
right,andout oftheenginecompartment.
bleclamps(!^,i-in.boxwrench)andremove
menuts(s/8-in.open-endwrench)toliftoff
outof thecompartment.
mas outlinedinparagraph76a (2)and
yheaterhoseclamps(screwdriver),andpull
er coil.
crewdriver)whichsecurethecoilthrough
rybasesupport frame.Removethebattery
he batterycompartment.
edin paragraph78a.
eduretoinstallthebatteryheaterusing
nate,onthehoseconnectionsandtestingfor
ng.Also,determineifthe coolingfluidiscir-
Thecoil shouldbecomewarmwithin5min-
ne.
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_
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-15
freezeSolutionTesterEDL-1I6
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_
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nt81
83
ON.
sk-typeclutchislocatedimmediately
eelwithinahousing behindtheassistant
ockpitsideofthebulkhead.Thebellshaped
curelytothe enginefrontplateandencloses
chanismandtheflywheel.Theclutchrelease
ansmissionpinionflangeis oftheballtype
utchitselfcannotbeadjustedto compensate
ydepressingand releasingapedalatthe
is connectedtoareleaseshaftattheclutch
;theeffectivelengthof thecableisadjustable
etotheexternalreleaseleveron theleftend
hpedal,thereleasebearingmovestoward
ontactstheinnerendsof 3releaseleverswhich
plateandcoverassembly.Sixboltssecurethe
ssemblytotheengineflywheel.Theforceon
essureplate tomoveaheadandcompressthe
ndcoverassembly.Thisactiondisconnects
pressureofthepressureplateagainstthe for-
mberandthe pressureoftherearfaceof the
eengineflywheel(fig.67).
erightend oftheclutchreleaseshaftfor
hing.Engineoil mustbeappliedatthis point
accordancewiththedirectionsgiveninsec-
earingis packedatassemblywithhighmelt-
snot requiresupplementarylubricationdur-
Theclutchpilotbushinglocatedin thefly-
therearwardendof thetransmissionpinion
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_
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-15
blyCrossSection
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
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USTING'
eLinkage
ntatassembly.Thisbushing requireslubrica-
nvolvingremovalofthetransmissionare
DJUSTMENT(fig.68).
nd,!)7,,i-in.
n.
utchreleasesandengagescompletely,it
st1inchoffree travelofthepedalbeforethe
Thisclearanceismaintainedbyadjustment
ectingtheclutchpedaltothe clutchrelease
crew( Vi-in.open-endwrench)andturn
ckwise)untilitbottomson thelocknut.
bleclevis cotterpinandremovethepin
thereleaseshaftexternalleveratthe lower
sing.
ut( %,;-in.open-endwrench)andturnthe
ntheeffectivelengthofthecableor counter-
cableuntilnoslackor pullexistsonthe clutch
ecleviseyeis inlinewiththe leverhole.
ghtentheclevislocknut,andinstall anew
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_
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-15
pedalat thefrontofthecockpit,backoff
rning counterclockwise)until1inchof free
tbeforeclutchdisengagementstarts.
ocknut.
T.
SOCKET,vU-in.
c-in.
ET,s/8-in.
%f,-in.
H,open-end,3/8-in.
CH,open-end,7/10-in.
d,V2-in.
nd,%0-in.
open-end,y8-in.
onbyfollowingtheprocedureoutlinedin
groundstrap,followingthedirections
8).
naccordancewiththestepsoutlinedin
motorcable(%(i-in.open-endwrench)
ousingbolts withnutsandlocks(% ,i-in.socket
,and'-'-,,i-in.open-endwrench)whichsecurethe
plateandclutchhousing.Movethestarter
arwardawayfromtheengineflywheel.
usingdowelbolt nuts(Vi-in.socketand
tside and,withahammer,tapthedowel
gine frontplate.Thedowelboltsarelocated
prominentearsoftheclutchhousingmay
e itisthefirst boltabovethestartermotor
htsideitis thesecondbolttotheright ofthe
w(fig.69).
nuts(Vi-in.socketextension,ratchet
ndwrench)aroundtherightsideand bottom
ws(%0-in. socketextension,andratchet
utchhousing.
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_
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eMechanism
gfrom theenginefrontplate.
eachofthe6clutchpressureplatecover
.socketandspeederhandle)byturningthem
eventthe clutchspringsfromdistortingthe
replate.Afterlooseningthescrewsuntil all
ed,removethemin anyorder.
essureplateassemblyandtheclutchdriven
ywheel.
edin paragraph82a,alsothefollowing:
6AHANDLE,speeder
clutch,useGREASE,generalpurpose,to
chpilot(transmissionpinion)bushing inthe
hespecialclutchalininggageMPF6Awith
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
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-15
heboreofthepilot bushing.Slidetheclutch
ngsideof hubawayfromfrontoftheengine
ageand expandbothcolletsuntilthearbor
hingandsplined drivenmemberhub.Inthis
rightanglestotheflywheelfaceand therear
will beflatagainsttheforwardfaceof the
hPressurePlateAssemblywith
eassemblyin positionagainsttheforward
andi nstallandtightenthe6 pressureplate
et,andspeederhandle)untiltheclutchspring
ompletetheprogressivetighteningofthe
wsbyturningthemonlyVi turnatatime to
.Makeanadditionalcompleteroundofthe
hecapscrewsare tightenedsecurely.
at theendofthe alininggagetoallow
withdrawthegage,beingcarefulto avoid
yofthe colletsegments.
ginposition andstartoneofthe upper
egeneralalinement.
equiredtolineupthe leftandrightdowel
artapthe2 dowelboltsinplace(hammer).
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
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dnuts andtightenthenutssecurely(Vz-in.
).Theninstalltheremainingcapscrews
andratchethandle)andboltswithnuts (Vi-in.
handle,andVz-in.open-endwrench),aswellas
ocketextension,ratchethandle,and%0-in.
eningthescrewsandboltnuts alternatelyto
voiddistortingthehousing.
ation,reversetheremovalstepsoutlined
NEMENT.
6A
S196
.
HousingIndicatorSB-SI96
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
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-15
singis installed,itisnecessarytoaline the
odo this,firstinstallthehousing onthe
hebolts downsnuglybutnottight.Then
BSS196ontotheclutchalininggage MPF6A
torbuttoncontactstheforwardclutchhousing
o alinethehousingwithin0.006-inchasreg-
torreadingsatvariouspointson thehousing
,tighten thehousingboltsand,ifneces-
sionreamerthroughtheenginefront plateand
chhousing.Insertthe 2dowelboltsfromthe
ntplateandinstallthe nuts(Va-in.socket,and
teningthe5bolts,the 3screwsatthetop
boltsholdingthestartermotor,use thedial
gage tochecktheamountofvariationat
adingsvarymore than0.006inchopposite
sionmountingholes,loosenthehousingbolts
enthenalternately.If afterrechecking,the
sspecified,andifsatisfactoryalinementcan-
ngthe housingbolts,useshimsatthe 3low
gborefaceandthe transmissiontoobtain
tofbothunits.
part oftheengine,itis coveredinthis
elocationtothe clutchanditsrelatedfunc-
edtoa flangeonthefrontendof theengine
,andlocks.Aring gear,shrunkontotherim
evolvethecrankshaftforenginestarting when
otorpiniongear.The huboftheflywheel
hichsupportstherear endofthetransmis-
hdrivenmemberslideson thetransmission
eflywheelhubbushing isusuallyreferredto
Thetransmissionpinion shaft(clutchpilot)
thGREASE,generalpurpose,beforerein-
lsaslistedinparagraphs55,82 and89.
flywheel,itisnecessarytoremovethe
ar.55),thetransmission(par.89), theclutch
sembly(par.82).
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
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andlocks(!y10-in.socketextension,
ngtheflywheeltothecrankshaftflangeand
rring gearawayfromthefrontof theengine.
edin paragraph84b.
edbyreversingtheremovalprocedure.The
ywheelare sospacedthatitcannotbe in-
pecttothetimingmarkingsstampedonits
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
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-15
nt87
88
ON.
e conventional,automotive,synchronized
speedsandonereverse.Powerentersat the
onthroughthetransmissionpinionfromthe
ehubofwhichiscarried onthepinionshaft
ortedat itsfrontendby aballbearingand
the flywheelhub.Justinsidetherear wall
epoweris transmittedtothetransmission
Theclusteriscarriedonbronzebushingsbear-
ichislockedstationaryin thecase.Thecounter-
ransmissionpinionare inmotionatall times
ngand theclutchisengaged(fig.72).A
hronizerunit,andaslidinggear, togetherwith
hepowertrainof thetransmissionunit.The
ontendbya ballbearingwhiletherearend
ecessedintheforwardendof thepinion(fig.73).
nizerorslidinggearis controlledbythetrans-
ftleverlocatedatthefront ofthecockpitim-
ver'sseat.Thepositionof thesynchronizer
ngedbymovingthecontrolleverandlinkage
combination,thesecondspeedgearing,orthe
.Whentheshifttohighgear (thirdspeed)is
ovestotherearto engagetheexternalteeth
ough thecountershaftgearsiseliminated
ausethemain shaftisconnecteddirectlywith
ersedirectionofmotionis accomplished
gedwiththe smallgearofthecluster.The
eswiththeidler gearwhenashiftis made
turns onabronzebushingfitted toitshub.
ng gearisfittedwithsynchronizingrings
secondandhigh,or viceversa,withoutgear
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
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/ 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
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15
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
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ofthe mainshaftisconnectedtothepro-
ndand splinedsleeveorslipjoint andyoke
dor rearwardasrequiredduetothe move-
tedengine.Theoutergroundsurfaceof the
ngloadedleather sealtopreventtheescapeof
etransmissioncase.
becheckedandlubricantaddedorre-
cewiththespecificationssetforthinsectionV.
relocatedontheleft sideofthetransmission.
renchtoremovethefillerplug ordrainplug.
yreachingbetweentheassistantdriver'sseat
e.
DJUSTMENT.
econtrolshiftleveris connectedtothe2
sontherightside ofthetransmissionbyrods
hinthepropellershaft cover(fig.21).To
ds,proceedasfollows:
olshiftleveri nneutralandremovethe
pliers) connectingtherearendsofthe2
sioncontrollevers.
onnected,graspthetransmissioncontrol
eir neutralposition.Thiscanbedetermined
fthedetent plungeronthecenternotchof
hiftforks.Thedetentplungerwill beinen-
notchwhen,withthefrontaxleshift leverin
tcanbeturned byhandwithoutdisengaging
uts(%,t-in.open-endwrench)andturn
hortentheeffectivelengthofrodsor counter-
rods.Theclevispinsmustjust entertheclevis
ransmissioncontrolleverswithaminimumof
usingnewcotterpins,andtightenthe clevis
theadjustmentbyshiftingintothedifferent
inkagepoints.
DLEVERS.
missioncontrolleversshouldoperateeasily
ftingeffortfromthedriver.Periodiclubrication
oftherodswill assurefreemovementatthese
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
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-15
oidstrainingtherods bybendingorjamming
verorbetweentherods.
T,ft,,-in.
nd,~/,G-in.
atsas directedinparagraph55a(1)
ws(7/j,i-in.open-endwrench)withflat
andremovethepropellershaftcover.Dis-
rolshiftrodsat bothendsbyremovingthe
s (pliers).
t (^(i-in.socket,ratchethandle,and
andthedoubleU-clampwhichpositionsthe
hthe rodsslide.Worktheshiftrods outfrom
ndout ofthehull.
stedinsubparagraphItabove.
ocedurewheninstallingtheshiftrods.
geas directedinparagraph87.
HOIST
VER
ET,%0-in.
H,box,s/8-in.
etransmissionassembly,proceedasfol-
haftanduniversaljoints assemblybyfol-
ninparagraph55(3). Removethe2trans-
oframescrews(%6-in.socketextension,and
controlshiftrodsat thetransmissioncon-
2 cotterpinsandclevispins(pliers).
ntcompartmentlidhandwheelsandraise
position,removetheenginefrontcompartment
(4)),and installliftingeyeHKM-J53after
gsystemandremovingcylinderheadscrew
rheadtighteningchart)(fig.33).
theeyeandraisethe hoisttosupportthe
theengine.
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
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Removal
ws(s/8-in.boxwrench)whichsecurethe
housing.Whilesupportingthetransmission
movestraightforwarduntiltherear endofthe
earedtheclutchhousing.Liftthetransmission
edin subparagraphaabove.
ission,besureit islubricatedadequately
tisfactorily.Beforeplacingitinposition,coat
onpinion)bushingwithGREASE,general
oveprecautions,theremovalprocedureshould
gthetransmissionassembly.CAUTION:
utof thevehicle,becarefulnottodrop any-
oftheclutchhousing.Also,donotdepressthe
lutchdrivenmemberwilldroptothe lower
gitimpossibleto installthetransmissionwith-
venmember.
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
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NIVERSALJOINTS
mitsthepowerdevelopedby theengine
eaxle unitlocatedinthefrontend ofthe
huniversaljointsateachend topermitsmooth
etreads eventhoughtheengineoperatesina
nit (fig.75).Thepropellershaftis protected
hbya sheetsteelcoversecuredtobrackets
hull.
ypeenginemountingsused,somemove-
whileit isinoperation.Theuniversaljoints
tefortheangle ofthedriveandfor theside
gine.Endwisemovementoftheengineonits
the useofasplinedslip jointattherear of
etransmissionmainshaft.
ershaftisofthe hollowsteel-tubetype
tyokesateachend.The shaftrequiresno
H,box,V2-in.
-in.
Hopen-end,V2-in.
p,thedriver'sand assistantdriver'sseats,
erasoutlined inparagraph55(1),(2) and
nuts(Vi-in.box wrench)holdingthe
xleunitdrivingflangeandremovethe U-bolts.
easedbyremovaloftheU-boltsto pre-
ossandtaptheshaftassemblyrearwardto
the retaininglugsoftheaxle unitdriving
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
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NIVERSALJOINTS
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
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-15
epropellershaftandpull forwardtodis-
romthetransmissionmainshaftsplines.
assemblyoutofthecockpit.
lacethepropellershaftonly,followthe
)in connectionwithremovalandinstallation
graphhabove.
KM-J881A
eduretoinstallthepropellershaft;however,
thefreebearingsofthe frontjointarefully
ftheaxle unitdrivingflange.Toaidin this
mpHKM-J881A.
reoftheneedle-bearingtype,completely
edinplace.
,hand-operated,pressuregun,andgrease
ossesasdirectedinsectionV.Lubricatespar-
thelubricantfittingineachcross.
versalJointBearings,
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
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NIVERSALJOINTS
mesnecessarytodisassemblethejoints
hecomponentparts,proceedasfollows:
IERS
tasoutlinedin paragraph91c.
tsassemblyoutofthevehicle,remove
es.
nchandgrasptheloops ofthelockrings
dliftthelock ringsoutoftheyokeeyes.
A,pressoneofthe bearingsinward
keuntil ithasclearedtheyokeeye.When
ressed inwardtheoppositebearingwillhave
e'.vayfromthecrossinto theadapteronthe
etakenoffthecrossand outoftheyoke.
emblyoftherear joint,firstremovingthe
the shaftyokeeyesandthenthebearingsthat
yokeeyes.Followexactlythesameprocedure
ontcross.
hlyinSOLVENT,dry-cleaning,andpry
oilsealsoffthe 8crossjournals.
graphcabove.
greaseineachbearingcupto holdand
sandloadeachbearingcup with12needles.
orkoil sealsoneachjournalofthe cross.One
usedovertheendof thecrosstogetherwith
randsealsinto positiononthecrossshoulders.
alled intheyokesbyreversingthe dis-
wever,thelockringsshould beexaminedcare-
ydistorted ringsshouldbereplaced.
completed,usea brasspunchandhammer
achof the2bearingsat thefrontandtoward
herearinorder tofreethecrossesat theseals.
outlinedinparagraph91c.
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
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-15
tment95
tsremoval100
tsinstallation......101
intheextremefrontofthe hullandit
erfromtheengineto thedrivewheelsand
comprisedofatwo-speedtransmissionwith
anetarygearing,2brakedrumswithhand levers
s forbraking,2wheelcarrierhousings,and2
ckdrive wheelsaresecured.Thevehicle
erear oftheunitbelowthe mainshaftflange
dforwardbythe propellershaftfromthe
ttherear endoftheaxleunit transmission
mainshaftare2helicalcut gearsofdifferent
rearisthe highspeedgear,thesmalleroneat
gear.Themainshaftiscarriedon opposed
themainshaftgearsare theaxledrive
erbearings.Wheneverthetransmissionis in
aged,all4ofthesegears (2mainshaftgears
areturning.
shaveinternalteeth.Betweenthemand
isaslidinggear usedtoconnectthepinion
willofthedriver.
yoneof themainshaftgears,thepinion
rotatesthedrivewheelsandvehicletracks
arydifferentialgears.
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
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rentialthetwoplanetarydrivingelements
rumwhichis connectedbymeansofitsgeared
Thesegearsinturn arekeyedtotheplanetary
erentialsidegearscarriedin aforgedspider
ftof theringgear.Theside gearsaresplined
hichareconnectedbymeansofflangestothe
DADJUSTMENT.
cessarytoreadjustthe brakebandsasthe
herearefour adjustmentpointsoneachband
videdforlimitingclearance,oneforadjusting
forshorteningthetravel ofthesteeringlevers.
S
S
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
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-15
nd,!",,i-in.
ewingnut usedtosetthetension ofthe
efelttocontactthedrum.Thenloosen thelock
clearancelinkscrews(%,;-in.open-end
ocknutis locatedinthefrontwallof the
bottomoftheaxlecarrierhousing(fig.77).
w(!yl,i-in.boxwrench)clockwiseuntil
m.Thenbackoffthe screw(turningcounter-
fthe screw)toestablish0.020-inchto
esetwopoints.Whileholdingtheheadof the
^,i-inchboxwrench,tightensecurelythelock
nch).
wingnut,turnthenut counterclockwise
orwardfaceofthe wingnutisnotchedso that
-turnstages.Byobservationandfeelingwith
ell whenthenotchesarereached.)Thisadjust-
mpletedwiththenotchesonthe wingnut
n theplatejustaheadof thewingnut.
ndthe clevispin(pliers)holdingthe
steeringlever.Shortenorlengthenby turn-
dtoproducenotmorethan 1inchoffreemove-
er)beforetheeffectivestrokebegins.
procedureontheotherband andlever.
eraladjustmentmakesurethatboth
esamebrakingeffectandthatthe bandsare
with theleversreleased.
ngineoilonthelever pivotpinsandclevis
cessaryto removethesteeringlevers,
vethelevertooperatingrodcleviscotterpin
ovethecapscrewandlock washer(%,;-in.
curethesteeringleverretainerplate,spacer,
.Movethelevertowardtheside ofthecock-
heninstallingthesteeringleversreverse this
OL.
ountedjustinfrontofthe driver'sseaton
heaxleunit housing.Bymovingtheaxlegear-
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
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eutral,theslidinggear movesforwardtocon-
e drivepinionthroughthemainshaftlow
eshiftleverforward,the slidinggearismoved
ainshafthighspeedgearwithengine^power.
risinneutral,the propellershaftcanbeturn-
tmoveuntiltheclutchis depressedandthe
eitheritshighor lowspeedposition.Ingen-
avetheaxlegearshiftleverinthe highspeed
ssuch thatthelowercombinationofdriving
eunit maybeshiftedtothe lowerrange.
cledbya conventionalbrakebandcon-
As oneleverispulledrearward,the bandcon-
rstopthecorrespondingaxleshaftdepending
effortappliedto thelever.Atthesametime,
anetaryelementincreasesbyvirtue ofthe
ingmotionis timeimpartedtothevehicle
r stoppedandthespeedofthe oppositetrack
d.Ifbothleversarepulledrearward,thevehicle
hacasethe clutchmustbedisengagedorthe
-n.
-in.
-in.
p,seats,and thepropellershaftasoutlined
nd(3).
cleso thatnoneofthevehicle'sweight
nspring releasebracketSD902748,
ndhandleSD903401pulltheendsof therear
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
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/ 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
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nwardandremovethespringstopbrackets
on bothsides.Theoperationasoutlinedin
oversthe trackremoval.
rstremovebothaxleshafts aftertaking
ews(5/8-in.socketextension,andratchet
lhub(fig. 78).Untieropesanddisconnect
cketextension,ratchethandle);thenremove
etopof theaxleunithousing.Disconnectthe
he topoftheunit (%c,-in.open-endwrench)
eforwardoutof theway.Removethebolt
ut(~^0-in.open-endwrench)tofreetheclip
xle,andCarrierRemoval
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
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-15
andbend thetubesupto permittheaxleunit
onnectthetransmissionremotecontrolshift
erandclevispins (pliers).Loosenthespeed-
pliers)andpull thecableoutofthe axleunit.
oftheunit(shallowdrainpan) byremov-
open-endwrench)attherearonthe bottom
orwardandoutofengagementwiththedrive
hsocketandratchethandlewhilean assistant
box wrench)insidethecockpit,removethe
xleunitcoverflangebolts, copperwashers,and
eranddrivewheelassemblies(fig.79).
nremovingtheassemblies,use2 hydraulic
hullanddrivewheeland adriftbarand heavy
carrierhousinginnerpilots outoftheaxle
xleunitand,usinga hoist,lifttheunit
ofthecockpit.Whilethe unitisbeinglifted,
used toguidetheunitand preventanyun-
(fig.80).Notethatshimsare usedoneachside
nit coverflanges.Onassembly,thesamenum-
alledatthesidefromwhichthey wereremoved.
oval
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
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TION.
edin paragraph97above.
ionoftheaxleunit requiresnospecial
eversetheremovalprocedureandfill with
tionV.Also,the tracktensionshouldbead-
cedureasoutlinedin paragraph103a.
LUNIT.
theaxle transmissiondifferential,runin
cedasdirectedinsectionV.Thelubricant
erightsideof theunitcoverandmaybe re-
en-endwrench.Theaxleunitventilatorre-
ainplugis locatedneartherearofthe unit
removedwitha;i/i,i-inchopen-endwrench.
SANDSHAFTSREMOVAL.
ph103a,below.
-in.
in.),
(2)
ononthe sidewherethedrivewheelis
heproceduregiveninparagraph103h (5).
langescrews(5/8-in.socket,andratchet
nnotbe removedbyhand,inserttwo3/8-inch
readedholesoftheaxleshaftflange andturn
-in.open-endwrench)topushtheflangeaway
Removetheaxleshaft andtakeoutthepusher
gegasketandonreassembly,applyanew
neralpurpose,toholdthegasketin place.
mer)andremovethedrivewheelbear-
stingnut (23/8-in.wrenchSD903856).
elwithouterbearingand innercupand
er bearingfromthehubof thedrivewheel
aringcupsiftheconesareto bereplaced
).Slidetheinnerbearing coneoffthecarrier
roughlywithSOLVENT,dry-cleaning,the
b andthebearings.
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
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-15
emoval
SANDSHAFTSINSTALLATION.
edin paragraph100aabove.
bycarefullydrivingthemintoplace
.PacktheinnerbearingconewithGREASE,
lgrade),installthebearing,andinstalla new
withGREASE,generalpurpose(seasonal
eel,andadjustthe bearings(wrench
eatedfirmlyand thewheelturnshard;then
% turn.Installthelockandlocknut andset
er).
ndtightentheflangescrews(s/8-in.socket,
ely.
he drivewheelandadjustthetrackten-
aph103b.
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
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NS
ION(fig.82).
rackspropelthevehicleforwardorback-
sedof41rubbercoveredtrackshoescalled
respacedVi inchapartandeachplateac-
tracklength.Thegrouserplatesareriveted
berbandswhichact asthebackboneofthe
eofthevehicle,is adrivewheeldrivenby
xleshaft.Theshaftissplined onitsinnerend
hedifferentialsidedrivegearsandflangedat
angeisheldsecurelytothe drivewheelby
hubofthedrive wheel.Thedrivewheelis
rbearingsonthe outermachinedsurfaceof
Thehousingis,in turn,joinedtotheaxle unit
pilotsandsecuredby6 bolts,copperwashers,
ltsextendthrough thehullofthe vehicle.
earwheelis mountedoneachsideofthe
htracktomaintainthetrackspacingandto pro-
and changingthetracktension.Acantilever-
gmentofa semiellipticspringisusedateach
end ofthespringis securedtoacrankarm
hullattherear. Thecrankarmspringis
ardatitsfrontend by2stopbracketsattached
frontbracketlimitsthe upwardtravelofthe
ncontactwiththespring.Therear bracket
racketin casesofsharpandsevereshocksto
vehicle,suchaswhenstrikinga perpendicular
herearwheelturnsonopposedtaperedroller
leat theendofthecrankarm.
ckon 4bogiesets,2on eachside.Each
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
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-15
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
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NS
liptic,3-sectionspring,thecenterofwhichis
t whichispivotedona hullbracket.Thebogie
h springareshackledtothespringeyes in
band)throughayokeanddoublespindle
sarefreetomoveupwardand downward
ngflexingabilityasfixedby stopbumpers
axiallyby thesemiuniversalmountingofthe
ngyokes.Eachbogiewheelis rubbertired
rwhereitcontactstherubberbelt ofthe
esupportedindividuallyonsealed,opposed
riedonthespindle brackets.
(2on eachside)areusedtosupport and
ewheelisborne on2needle-typebearings.
heelsatoneendof thespringareforced
elscanbe easilydirectedbackintothebelts
ieWheelsontoTrackBelt—
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
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-15
412(fig.83).Tofunction,the rerailermust
ntandrear wheelsofthebogiesetinvolved.
rdtheouteredgeofthe track,thenotchesin
gagedwiththetrackinnerguidelugs thatthe
esthe outerbogiewheel.Ifthewheelsare off
ack,thererailermustbeso positionedthatthe
bogiewheel.Whenthefrontwheelsof abogie
cleinreversesothewheelswill climboverthe
tion onthetrackbelts.Ifrear bogiewheels
icleforward.
ckTension—GageSD902836
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
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NS
sion
n,
gnmatteroffthenarrowmachinededge
eatwhichisexposedbetweentherearend of
thehull.
ckspringtensiongageSD902836toward
ingearsat therearofthe gagebetweenthe
nstthe machinedsurfaceofthespringseat
okand springupandaroundthe crankarm
holeneartherearof thegage(fig.85).
kTensionGageinPlace
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
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kTension
kTension
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
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NS
ngStopBracketfoAdjustTrackTension
etipofthe pointerwithrelationtothe
etipof thepointerisbelowthe topleafof
oloose.Ifthetip ofthepointerisabovethe top
kistootightand, ineithercase,thetrackmust
ducedbyremovingshimsbetweenthe
sionspringfront stopbracketandthelower
cktensioncanbeincreasedby installing
).
justment,pullthefrontendof thetension
arwheeltensionspringreleasebracket
hookedunderthebogieandidler wheelto
hiclejackSD903400.Thebracketontop
ookedoverthetopleafof thetensionspring
efrontstopbracket.Operatethejackwith
ethespringend downward(fig.87).
espringhas beenpulledoutofcontactwith
2cap screws(Vi-in.socketextension,and
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
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-15
wearpad andaddorremoveshims,as re-
of thespringtocoincidewiththetip ofthe
sbeencompleted,lineup theshimsand
curethe capscrews.
cknessgage(partofthetrackspringtension
ebetweentherearstopbracketandthetop
Ifmoreor lessclearancethan%,iinchexists
veshimsasinthe caseofthefrontstopbracket.
etwillrequire adjustmentatthesametime
ntainthe :!/J,;-inchclearance.Therearwheel
cketisnotneededin adjustingatthispoint.
rSpringStopBracketforClearance—Gage
the sidewherethetrackisto beremoved
fthevehicle'sweight.
erearwheel spring(rearwheeltension
902748,vehiclejackSD903400,andhandle
ntactwiththespringfront stopbracket.
ews(%,i-in.socketextension,andratchet
ardstopbrackettothe hullandremovethe
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
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NS
ringStopBracketsRemoval
opbracketinthe samemanner(fig.90).
itsfrontendarcsup underthehull.This
dingthe rearwheeltomoveforwardand
out ofengagementwiththerearwheel
thesuspensionsystem(fig.91).
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
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15
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
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NS
edin subparagraphaandcabove.
gnedforprincipaloperationinone direc-
leading.Do notreversethetracksonthe
users oneachplatewillleador passthedrive
useronforwardoperation.
ersingthe removalprocedure.Whilerear
ngbracketSD902748andvehiclejack
after thestopbracketshavebeeninstalled,
djustedas outlinedinparagraph103b.
moval
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
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-15
onasoutlinedin paragraph103b(5).
3856
aringAdjustmentWrenchSD903856
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
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NS
/8-in.socketandratchethandle)holding
wheelhub.
mer)andremovethebearinglocknut,
gnut(23/8-in.wrenchSD9038S6);thenlift
(fig.92).
edin subparagraphaabove.
earwheel,thebearingsshouldbe cleaned
ry-cleaning,andtheyshouldbe handpacked
pose,seasonalgrade.Also,theoilsealsshould
howsnewsealsare needed(fig.94).
nthecrankarmandadjust thebearings
8-in.wrenchSD903856)untilit ishardto
justingnut shouldbebackedoff%turnto
ment(fig.93).
/8-in.wrenchSD903856)andlock(chisel
/8-in.socket,andratchethandle)with
as outlinedinparagraph103l».
chet
JACK,floor
vehicle,SD903400
in.
ble
in.,SD903856
ndSpringRemoval.
byfollowingthe procedureoutlinedin
tlock(chiseland hammer)andremove
usting nut(adjustablewrench).
thspringoffthesupporttube (fig.95).
pring,removethe 4nuts(%H-in.socket,
cksfromthetwo U-boltswhichholdthespring
ankarm.
ndSpringInstallation.Toolsas listed
nstallthespring onthecrankarm,mak-
boltfitsintothe recessofthespringseaton
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
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15
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
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NS
ankArmandSpringRemoval
gsin thecrankarmsupporttubebore
pose,seasonalgrade.Installthecrankarm
hesupporttube.
djustingnut(adjustablewrench)and,
armandspringmovehard,backoffthe
ll thelockandlocknutandbend theearsof
er).
onasdirectedunderparagraph104 c.
eightfromthebogiewheelassemblyby
ewheelscarrierbracketandgrouserplate
ndhandleSD903401)untilthewheelflange
d.
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
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-15
capoutofthehub (screwdriverand
(pliers)andremovethebogiewheel
stableopen-endwrench).Slipthewheeland
hebracketspindle(fig.96).
emoval
pouttheinneroil sealandtheinnerbear-
ringsinSOLVENT,dry-cleaning.
toberemovedalso,usea brasspunchand
ctbothcups.
graphaabove.
aring,HKM-J270,disk18,handle1.
sideofthe bogiewheelhubandinstall
eelbearingreplacerHKM-J270,disk18 and
with GREASE,generalpurpose,seasonal
bearingandanewoilseal.
withGREASE,generalpurpose,seasonal
easein thehub,andinstallthe wheelwhile
flange ofthewheelisinside thetrackbelt.
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
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NS
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
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-15
earingcone,and washerinplace,install
t thebearings(adjustablewrench)untilthe
n.Thenbackofftheadjustingnut %turnto
intheadjusting nut(pliers),installthe
ck.
val.
T,%.i-»n.
n-end,^-in.
clewherethe bogiesetisto beremoved.
s (pliers)bolts(%,i-in.open-end
ocket,andratchethandle)withlockswhich
the supportbracketonthehull.
offthe trackbeltsandawayfromthe
tion.Toolsaslistedin subparagrapha
eduretoinstallthebogieassembly,noting
,whichare tobeboltedon belowthebogie
einstalledwiththeedgehavingthe greater
leofthespring.Onthe frontassemblies,the
highermountingofthe springendmustbe
evehicle.Ontherearassemblies,thestop on
acketpermittingthegreatertilt ofthewheels
hiele.
ER
T,9/,0-in.
.
mblyasdirectedinsubparagraphb above.
(pliers)andremovethespringyokenut
ethandle)andflatwasher.Pullthewheel
ls,offthespringyoke.
ovethebogiewheelsandspindleoffthe
nd.
en andremovethe2shackleboltlock
ket,andratchethandle)whichsecurethe
p (U-bolt)nuts(',4,.,-in.socket,and
ashers.Prythespring plateofftheclips
clipsandcradlebracketoffthe spring.
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
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NS
.Toolsaslisted insubparagraphd.
sgiveninparagraph96f toinstallabogie
hespringcenterboltheadentersthe recess
pringshackleboltsshould becoatedwith
,seasonalgrade;installed,andtightened
tospringthe yoke.Installthelocknutsand
estoponthebogie wheelspindlebracketmust
of thespringaftertheyokepin andspindle
SE,generalpurpose.Tightenthecastellated
cketto theyokeuntilithits thestoponthe
cotterpin.
chet
JACK,vehicle,SD903400
H,brass
R
onasdirectedin paragraph103a(5)and
earoftheguidewheelflanges.
screwswithlockwashers(screwdriver)
p.Removethewheelretaining spindlescrew
andratchethandle),lock,flat,andthrust
heelincludingneedlebearingsand oilseal
crewdriver)whichholdtheinnerwheel
heelandliftoff thecapwithseal.Whenin-
anewgasketbetweenthecapflangeand
edle-typebearingsateachendoftheguide
dwitha brasspunchandhammer,tapping
ntsaroundthebearing.Cleanthebearingsand
y-cleaning.
edin subparagraphaabove.
requiredtoinstall theguidewheel.In
cedure,packtheneedlebearingswith
,seasonalgrade;pressthemintothewheelhub
mer)sothattheyareflush withthehubends.
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
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-15
emoval
ithgasketbeforeplacingtheguidewheelon
yis providedinthedesignofthe wheeland
thewheelretainingspindlescrewsecurely.
platesisheldto the2-trackbeltbandsby
amagedorforany reasonrequirereplacement,
rtedtoordnancepersonnelso thatthework
erformed.
vailableforattachmenttothetrackgrouser
ctionduringvehicleoperationoverfine and
mentarygrousersareeasilyinstalledonevery
s:
dof thegrouserovertheinnerend ofthe
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
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NS
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
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-15
theadjustableendoftheauxiliary
nutwithwasherovertheplate outerendso
rsthe notchintheplate.Tightenthe wing
GrouserInstallation
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
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ANDELECTRICALACCESSORIES
ker116
tch120
1
electricwindshieldwiper)122
ch..123
dswitch:124
mperature)gage125
128
l129
0
ession132
ION.
thisvehicleis ofthesinglewiregrounded
y-dutybattery,abeltdrivengenerator,astart-
ltageregulator,the wiringsystem,andthe
ories.Thestartingmotorandgeneratoraredis-
eoneof theitemsofthevehicleequipmentis
ngisextremelyimportantandis providedatall
ecessary.Allconnectionsthroughoutthesys-
d tight.
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
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-15
,thefaceofthe instrumentpanelorgages
r'sseatwill bereferredtoasthe front.Refer-
ofthepanelorinstrumentsrelateto thesideat
electricalterminalsarelocated.
mploysa12-volt,6-cell,19-plate,153-
e)battery.Thebatteryislocatedon ashelf
t,slightlyaboveandtothe leftoftheengine.
omtheengine compartmentbyasheetsteel,
emovableinsulatedcover.Thebatteryisin-
nalsto thefront.Inthis positionthenegative
ith thepositivepostatthe leftorhullside.
dedto thefrontframeofthebatterycompart-
e,lead coated,copperbraidstrap.Thebattery
yacoilcarryingwarmfluidpiped underpres-
ngsystem(par.78). Inaddition,dissipation
eatfromtheoutsideofthe hulladjacenttothe
presenceoftheengineexhaustmufflerlocated
boveandto theleftofthe batterycompart-
thebatterytemperaturebekeptashighas
efficiently.
ET,V2-in.
H,open-end,%0-in.
)
batteryelectrolytefluidshouldbe checked
Todothis itisnecessarytoremovethe bat-
usingtwo~/\,i-inchopen-endwrenchesatthe
andlockwashersholding thecovertotherear
chsocketextension,andratchethandleto
pscrews.Aftercheckingthebatteryelectro-
40andifthe conditionofthebatteryisfound
erycellsshouldbe filledtolevelwithdistilled
hydrometertestofthe batteryshowsacor-
more,the batteryissatisfactory.Ifthereading
80the batteryshouldberemovedandreplaced
ery.Toavoidoverfillingandto insureget-
wateri neachcell,eachfillerplugshould be
ent directlyoppositeeachfillerhole.Ifthe
l thewaterlevelreachesthefilleropening
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
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ANDELECTRICALACCESSORIES
actlycorrectwhenthefillerplugforthatcell
nd installedinthefillerhole. Afterfillingthe
nywaterspilledandsee thattheterminalsare
teryWithHydrometer—EDL40
.
rectedinsubparagraphcabove,which
eckingspecificgravity.
eterminalclampnuts(%,i-in.box
psonthebatteryposts(pliers)and remove
tivebatterycableterminalsfromthe battery
clampframenutat eachendofthebat-
nch)liftofftheframe,andlift thebatteryout
nt.
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
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-15
t
r-
.
s-
vent
ct
ole.
rAddingBatteryWater
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
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ANDELECTRICALACCESSORIES
edin subparagraphdabove.
eversingtheremovalprocedure,making
amenutsaretightenedonlyenoughtoprevent
makesuretheconnectionsarecleanandsecure.
ASE,generalpurpose(seasonalgrade),over
eterminalsto retardcorrosion.
TOR.
asoneofthechiefcomponentpartsof
generatorregulator.It consistsofthreeen-
casedinasealed,moistureand dirtproofbox
eof theenginecompartmentbulkhead.The
st, thecircuitbreakerwhichclosesand
thegeneratorandbatteryto preventthecur-
oughthegeneratorwhentheengine isstopped.
ngregulatorwhichcontrolsthemaximumout-
eventsdamageto thegeneratorandbattery.
orwhichholdstheelectricalsystemvoltage
sunderthevariousoperatingconditions.
thevoltageandcurrentregulatoris
onnect,remove,andreplacetheunit witha
lator.
ET,Vi-in.
H,open-end,Vi-in.
artmentlid,removethebatterycompart-
ctthebattery(par.55g).
at theregulator(screwdriver),noting
ackwireconnectsattheleft post,theoakwire
mallblackwireto thefilterpost,andthe red
.
gboltswhichattachregulatorto bulk-
nch),nuts(Vi-in.socketextension,andratchet
kwashers,andstarwashers(notingthatthe
betweentheregulatorlegs andthebulkhead).
kheadand awayfromthevehicle.
edin subparagraphcabove.
structionsmakingcertaintheregulatoris
nectedexactlyasindicatedinparagraph
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
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-15
egulatorInstalledonBulkhead
WITCH.
edinconnectionwiththestartingmotor
tchfunctionsto closestartingmotorcircuit
shbuttonon theinstrumentpanelisoperated.
anelectricmagnetinthe solenoidswitchbe-
eavycoppercontactstogetherandthusclose
oset thestarterinmotion.Thesolenoid
nginecompartmentsideofthe bulkheadjust
rregulator.Anemergencystarterswitchbutton
esolenoidswitchundera screwcap(fig.104).
open-end,V2-in.
n.
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
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ANDELECTRICALACCESSORIES
lenoidEmergencyStarterSwitch
artmentlid,removethebatterycompart-
ctthebatteryasdirectedinparagraph55 g.
alnut(Vi-in.open-endwrench)anddis-
,heavyredwire,andblackwire.Removethe
/8-in.open-endwrench)anddisconnectthe
oint.Disconnectthestarting motorcable
nalafterremovingtheterminal,nut(Viz-in.
emovedfromthe bulkheadbyremoving
rewdriver),theheadsofwhichareon thefor-
andnuts (3/a-in.open-endwrench)withlock
edin subparagraphbabove.
lledbyreversingthe procedurefollowed
batterycable,heavyredwire,and blackwire,
erminal,theoakwire totherearpost,and
the switchright-handterminalpost.
switchismountedonthe lefjsideof
ctsto energizethestartersolenoidswitch
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
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15
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
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NDELECTRICALACCESSORIES
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
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-15
n withtheignitionswitchturnedon(fig.
box,9/,6-in.
u-
groundstrap(par.55 n).
tch,loosentheterminalpostscrew(screw-
wnwirehavingthespadetypeterminalend.
crew(small instrumentscrewdriver)and
ngit counterclockwiseofftheswitchoperat-
"i,i-in.box wrench)whichholdstheswitch
el.Removetheswitchfromthe rearsideof
rwasherisusedbetweenthe switchbodyand
edin subparagraphbabove.
rremovalofthe starterswitch,makingsure
betweentheswitchbodyandbackofthein-
switchbuttonbyturning itclockwiseonthe
thenbackit offuntiltheidentificationname
e setscrewinthebutton.
nswitchislocatedonthe rightsideofthe
0).Thislever typeswitchmustbeturnedto
beforetheenginewillfire. Inaddition,the
egisterunless theignitionswitchisturnedon.
T,midget,Jl/32-in.
groundstraps(par.55 n).
postnuts (iy^->-in.midgetsocket,and
backofthe switchandremovetheblack
post andthe2blackand greenwiresfromthe
onnut(pliers)onthepanel faceandpull
ebackof theinstrumentpanel.
edin subparagraphbabove.
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
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ANDELECTRICALACCESSORIES
hreversethe removalinstructions,connect-
opterminalpostandthe 2blackandgreen
terislocatedontheleft sideoftheinstru-
registerstherateofelectricalchargetoor
y.Theinstrumenthasa50-ampererangeboth
Withallelectricalswitchesintheir "OFF"posi-
ouldstandat zero.Ifareadingappearsunder
emattertoordnancepersonnelsothat the
ycanbetracedandeliminated.If theammeter
shouldbereplaced.
n.
groundstrap(par.55 n).
postnuts (3/a-in.open-endwrench)and
age andpullthered wireofftheleftpost and
rightterminal.
-in.open-endwrench)andflat washers
kettotheammeter.Removetheclampwith
omthe2 instrumentterminalposts.Slipthe
gholeinthe instrumentpanelface.
edin subparagraph114babove.
rations,notingthatthelocatingbosson the
arecessinthepanel hole.Makesurethered
t terminalandthe2blackwiresto theright
WITCH.
eterandswitcharelocatedontheleft
el(S, fig.105).Thevoltmeterregistersthe
tricalsystem.Thisinstrumenthasan 8-to
rytosnap onthevoltmeterswitchinorder
r lightthebulbat thefaceofthecompass.
n.
open-endwrench)andlockanddiscon-
elowerterminal postonthebackofthe
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
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-15
-in.open-endwrench)andlocksfromthe
chholdthe clampbrackettotheinstrument
heleftmountingstud.Pull thebracketoff
meteroutthepanelfaceopening.
Toolsaslistedinsubparagraphb above.
ersingthedirectionsgivenfor removal.
box,%6-in.
groundstrap(par.55 n).
crews(screwdriver)andremovethe2
postand theredwirefromthe upperterminal
onnut('-'-,(i-in.boxwrench)andring from
h theswitchbodyoutthepanelopening.
saslistedin subparagrapheabove.
installed,transferthejamnutontothe
stthenut sothattheswitchbodywill beflush
hentight.
epstocompletetheinstallation,connect-
elowerpostand theredwireto theupper
CUITBREAKER.
cfuelgageismountedon therightside
fig. 105).Thegageiscalibratedinquarters
tank(25-galcapacity)maybeapproximated.
uringengineoperation.Ifthe engineisnot
urn theignitionswitchtoits "ON"position
egageis wiredtoafloatunit onthefueltank
eris mountedonthegageandin thecircuit.
.
postnuts (3/8-in.open-endwrench)and
age.Disconnecttheblackandredwirefrom
tanceunitfromtherightterminal.
ts(%-in open-endwrench)andthegage
geoutofthe instrumentpanelhole.
oolsaslisted inparagraph116b.
ationstoinstallthegage,makingsurethe
ectedtotheleftterminalandtheresistance
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
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ANDELECTRICALACCESSORIES
al.
open-end,'^2-in.
tsmountingthecircuitbreakertothe
el('^o-in.open-endwrench),removethe
driver)theheadsofwhichareon thefaceof
hecircuitbreakeroffthe mountingscrews
postscrews(screwdriver)anddisconnect
perpost andtheblackandgreenwirefrom
on.
grapheabove.
rections,makingsurethebreakeris in-
oststo theright.Connecttheblackandgreen
nd theblackwireontheupper post.
htswitchislocatedinthe upperright-
entpanel(M,fig. 105).Theswitchisof the
esthespotlamp only.
IVER,small,in-
ument
groundstrap(par.55 11).
crews(screwdriver)onthe backofthe
erwirespadeterminalfrom therightpostand
post.
onsetscrew(small instrumentscrew-
tonfromthe operatingshaftbyturningthe
ytopanellocknut (%,i-in.boxwrench)
epanelhole.Notethat astarwasheris used
ndthebackofthe instrumentpanel.
edin subparagraphhabove.
alledin thereversemannerofremoval.
stalled betweentheswitchbodyandtheback
gthe switchbutton,turnitclockwiseonthe
thebuttonuntiltheidentificationnameis
setscrew.Thesilver wireisconnectedatthe
eblackwireto theleftterminal.
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
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-15
htismountednearthe frontontheright
allsocketwhichpermitsadjustmentofthe
ngebythedriverwhilewithinthe cockpit.
fasteningcordsprotectsthelightlens when
H,box,%-in.
open-end,7/16-in.
screwdriver)attherear rightsideofthe
nnectthesilverwirespadeterminalfromthe
bleclipnutfrom thelightbasebolts(%0-in.
wrenches)andspreadthecableclipat the
boltandremovethecablefromtheclip.
%-in.boxwrench)onthelight tobasebolt.
ebase,notingthat theballjointtop washer
eningboltarepulled upward(fig.106).
ews(screwdriver)whichsecurethemetal
mpRemoval
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
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ANDELECTRICALACCESSORIES
edeck.Pullthe capandgrommetofftheend
tandcableassemblyisto beinstalled,the
transferredtothe newcable.Installthe
thetop.)
edin subparagraphbabove.
eduretoinstallthespotlight.Makesureby
sebolt nutthatthelight issufficientlyrigid
onduringoperationoverroughterrain.
ndReflectorforServicing.
nd,y8-in.
ewdriver)andrimlugat thetopofthe
ogether(pliers)to springthelensretaining
ndlowerlug onthebody.Liftthelens out
o bereplaced,pushitinward,turnit
lit outwardanduptoclearthe diffuserplate
2cp.,12-16v).
ectoraretoberemoved,pullthe deflector,
emblyoutwardatthetop andlifttheassembly
assnut (pliers)holdingthelightwireter-
Removethedeflector,reflector,andbulbas-
tor,removethenut(7/a-in.open-end
Pullthebulb withsocketandthedeflector
mpBulbRemoval
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_
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-15
hataspacerring isusedbetweenthesocket
and Reflector.Toolsaslistedinsub-
,installanewbulb byreversingtheremoval
ebulbwithsocket,deflector,andreflectorwere
ctionsgivenforremovalwheninstallingthe
gofthe light,thedeflector,reflector,andthe
he nutandstarlock,mustbe removedtoset
owthebulb location.Thisscrewmaybead-
ositionof thecradledbulbsocketaxis.
T.
ut-type,rearmarkerlightismountedto
ckcoamingatthe rightrearcornerofthe
emarkerlightisconnectedintheinstrument
nsonly whenthepanellightsswitchis pulled
open-end,y10-in.
ly,removethelightdoorscrew(screw-
he doorandliftthe doorandrubbergasket
wardoffthelightbody.Turnthe bulbcounter-
thebulbsocket(bulb1247,3 cp.,12-16v).
ghtassembly,pulltheblue wireoutofthe
ustinsidetheright rearcornerofthevehicle
ewithcoveringloomthroughthehole inthe
ruleatthelightandslip theloomoffthewire.
racketnut(%6-in.open-endwrench)and
htassemblyandwireoutof thebrackethole.
edin subparagraph119babove.
edure,makingsurethestarwasherisinstalled
gnutandthe undersideofthemounting
LIGHTSSWITCH.
pulltypeswitchislocatedonthe leftside
dcontrolsthe 2instrumentpanellightsandthe
5).
box,%6-in.
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
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ANDELECTRICALACCESSORIES
groundstrap(par.55 n).
ost screws(screwdriver)onthebackof
vethe2 greenandthe1blue wiresfromthe
gewire fromtheleftpost.
onsetscrew(small instrumentscrew-
counterclockwiseofftheswitchoperating
(i-in. boxwrench)thatholdstheswitch
el.Removetheswitch.fromtherear sideof
astarwasherbetweentheswitchbodyand
edin subparagraphbabove.
stoinstallthe switch,installingthestar
hbodyandrearsideof thepanel,andconnect-
wiresto therightterminalandthe orangewire
switchbuttonbyturningit clockwiseonthe
thenturn ituntiltheidentificationnameis
buttonset screw.
LIGHTS.
relocatednearthemiddle oftheinstru-
eachsideof thespeedometer(F,fig.105).
entilluminationtomakeallof theinstruments
ness.Thelights cannotbeoperatedindividu-
ectedtoasinglecontrolswitchwhichlights
ownwardonthelampassemblytospring
romthepanel.
ng thebulbsocketoutofthe bodyor
nthe wire.Pushinonthe bulb,turnitcounter-
the socket(bulb-531cp.,12-16v).
acetheentirelight assemblyorthewire,
enwirefromtheright terminalofthelamp
oreremovingthelightassemblyfromthe
edin subparagraphbabove.
fthe removaloperationsperformed,reverse
rumentlightonthe panel.Makesurethegreen
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
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-15
ectedtotheright-handterminalofthelight
IGHTSANDELECTRICWIND-
breakerconnectedinthelightsand
ircuitfunctionstopreventdamagetothewiper
ntofanelectricalshortoroverload.This
eft backsideoftheinstrumentpanel(V,
open-end,*y32-in.
gnutsand locksbyholdinga'!/,.,-inch
utswhileturningthe mountingscrews(screw-
nstrumentpanel.Liftthebreakeroffthe
postscrews(screwdriver)anddisconnect
postandtheblackandorangeleads atthe
edin subparagraphbabove.
positionto bemountedwithitsslotted
tallthe blackwiretothetoppost andtheblack
ottomterminal.Completetheinstallationby
ctions.
ANDSWITCH.
cwindshieldwipersystemconsistsofa
massemblymountedatthe middleofthewind-
efromthe motortothepanelsocketatthe upper
ntpanel(A, fig.105)andapush-pullcontrol
open-end,s/8-in.
emotor bypullingthewireterminalend
poston themotor.
ssemblyfasteningscrew(screwdriver)
wiperarm.Pullthearmout andupwardto
aft.Removethemotorshaft endnut(screw-
cer.Removetheshafthousingnut(5/i-in.
lthewipermotorawayfromits mountingon
eremovalprocedureforthehandwiperis
tricwiperexceptthatnoshafthousingnut is
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_
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ANDELECTRICALACCESSORIES
aslistedin paragraph123b.
venforremoval.Oncompletingtheinstalla-
hecktheblade travelandrepositionthewiper
requiredtogiveequalbladetravelon thewind-
box,%„-in.
groundstrap(par.55 n).
ost screws(screwdriver)onthebackof
vetheorangewireconnectedtothe rightpost
eftterminal.
onsetscrew(small instrumentscrew-
counterclockwisetoremoveitfromthe switch
helocknut(%(i-in.boxwrench)holdingthe
entpanel.Removetheswitchfromthepanel,
sherbetweentheswitchbodyandrearside
saslistedin paragraph123d.
nstalledby reversingtheremovaldirec-
sherisinstalledbetweentheswitchbodyand
gewiremust beconnectedtotheswitchright
kwireto theleftpost.Turnthe switchbutton
gshaftuntiltight,thenturn ituntiltheidenti-
andtightenthe buttonsetscrew.
oval.
wireatthe socketontheinstrumentpanel
unterclockwiseandpullingit outofthesocket.
ftpostscrew(screwdriver)anddisconnect
ountingscrews(screwdriver)andpull
entpanel.
allation.Toolsaslistedin paragraph
ocedure,makingsuretheblackwireis
tchleftterminalpost.
STERSHIELDSWITCH.
ield.Thisunitfunctionstoheat asec-
so thatthedriver'svisionis nottotally
snow,oriceformationsonthe windshield
P u b l i c D o m a i n , G o o g l e - d i g i t i z e d
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-15
defrosterwithconnectingwiresandadhesive
alboxthatpermitssatisfactorystorageinthe
onthewindshield.Thedefrosteris operated
rightsideofthe instrumentpanel.
TERSHIELDINSTALLATION.
eglasssurfacewithinthedriver'scom-
d.
p toframethumbnutsonthe defroster
thesuctioncupswillbe flat.Covertheflat
swithadhesivefluidtakenfrom thetubefur-
withthewire terminalstotheright,on the
d,andallowatleast1-inchclearancebetween
sterframeandthehandwindshieldwipercon-
ntoftravel.Pressthedefrosterfirmly against
the4 suctioncuptoframethumbnuts,press-
ttheglass tocreateavacuumandsealthe
(fig.108).
witchterminalpostscrew(screwdriver)
backof theswitch,alsotheterminalscrewon
witch.Runthe defrosterwirestotheright
el,insert thewireendshavingspadeterminals
screws,andtightenthescrews(J, fig.105).
TERSHIELDREMOVAL.
edbydisconnectingthewiresat thecontrol
oncuptoframescrews,andsqueezingthecups
indshieldglass.
ieldSwitch.
box,%0-in.
ument
elddefrostershieldswitchlocatedonthe
ntpanel(J,fig.105),loosenthe 2terminal
onthebackoftheswitchbody.Pull offthe
romeachpost,notingthat thewireconnected
stothebottompost ontheignitionswitchand
ithinsulator).
onsetscrew(smalli nstrumentscrew-
counterclockwiseofftheswitchoperating
t(%6-in.boxwrench)thatholdstheswitch
el.Pushthe switchoutthebackofthepanel,
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_
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ANDELECTRICALACCESSORIES
efrosterShieldInstallation
susedbetweentheswitchbodyandrear side
tofthe windshielddefrostergroundwire.
saslistedin paragraph124b.
wedforremoval,makingsuretheangle
ledbetweenthe switchbodyandrearside
windshielddefrosterwires,theblackonerun-
hto thedefrosterswitchleftterminalpost.
turning itclockwiseontheoperatingshaft
uttonuntiltheidentificationnameishorizontal
screw.
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_
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NGINETEMPERATURE)GAGE.
dicator(enginecoolingsystemtempera-
he centeroftheinstrumentpanelandmay
hedriver(R,fig.105).The gagerangeisfrom
einstrumenthandand graduationfigureshave
permitsobservationofthegagein darkness.
open-end,%6-in.
.WRENCH,open-end,s/8-in.
artmentlid,turnthe sealingradiatorcap
movethecoolingsystemdrainplug (screw-
e hull,andopentheradiatordrain valveat
drainthesystem.Closethedrainvalveand
ead justbackoftheoil fillerneck,dis-
ntofthegage(s/8-in.open-endwrench).Un-
theflexiblegage tubetothemainwiring
rewdriver)onthe leftsideofthe2 con-
andthe4 nuts(7/i6-in.open-endwrench)
deof theconduits.Liftthecoverssufficiently
ndicatortube.
e,removethe2nuts (3/8-in.open-end
ampbracket.Pullthegage outthepanelface
flexibletubeandelementthroughthe clamp
edin subparagraphbabove.
nate
etube andelementbyreversingthere-
otbeany sharpbendsinthetube andcare
nstallationnotto crimpthetube.Thetube
lemententersthe cylinderhead.Thecoil
er.Coatthethreads oftheelementwith
nate,beforeinstallingitin thecylinderhead.
operationwiththeenginerunning,besure tofill
nspectforpossibleleakagewheretheelement
head.
.
oilpressuregageis locatednearthe
anelwithinquickglancevisionof thedriver
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
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ANDELECTRICALACCESSORIES
rangeof thegageisfrom0 to80poundsand
henevertheengineisoperating.
.WRENCH,open-end,%G-in.
ine fitting(%0-in.open-endwrench)on
bendthelineout oftheway.
n.open-endwrench)andlocksfromthe
thegageout theinstrumentpanelfaceopen-
edin paragraph126li.
edure,makingcertainatightconnectionis
fitting.Operatetheenginetocheckthegage
hegage linefittings.
ometerislocatedinthemiddleof the
wtheline ofthedriver'sstraightaheadvision
eterhandandthe 10and20graduation
atingwhichpermitsobservationofthe instru-
edometerhasa0 to60-miles-per-hourrange.
otalvehiclemileageisintegralwiththe speed-
eagerecorder.Thetripmileagereadingmay
umbscrewonthebackofthespeedometer
drivecabletoinstrumentbodycouplingnut
gnutsand lockwashersonthespeedom-
dthefasteningbracketto thebackofthe
hestuds andliftthespeedometerheadout
Thespeedometercableisremovedbydiscon-
trumentbodycouplingnut (pliers)andthe
xleunit.
edin subparagraphbabove.
inremovalwheninstallingthe speedometer
ECONTROL.
estartingtheenginewhencold,acar-
olisprovided.Thecarburetorchokecontrolis
tpanelandis readilyaccessibletothedriver's
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
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llingthechokecontrolbuttonoutwardshuts
ortoprovidearichermixture.As soonasthe
iformly,graduallyopenthechokevalveby
ontrolbuttontopreventoverchoking(par.8).
open-end,%6-in.
-in.
getocontrolwirecollarscrew(screw-
hokevalveoperatinglinkage,alsothescrew
lflexiblecabletothechokelinkagebracket
uisher.Removethescrew,lockwasher,
wrenchandscrewdriver)securingthechoke
othebulkhead.Opentheclip andremoveit
ontrolcableiscarriedin theconduitor
helf withinthecockpit.Toexposethecable,
ers,andflatwashers,(%6-in.open-endwrench)
ews(screwdriver),locks,andflatsfromthe
uit.Liftofftheconduitwhichisin twosections.
k(%6-in.open-endwrench)thatsecures
othebackof theinstrumentpanel.
semblyout themountingholeinthein-
enutand lock.
edin subparagraphbabove.
chokecontrol,insertthecablethroughthe
ughthelockandnut,withthe lockandnut
cksideofthepanel.Theflat locatedonthe
tregisterwiththeflatin thepanelmounting
ationbyreversingtheremovalprocedure.
chokeforproperoperation.Loosenthe
recollar(screwdriver)atthecarburetor
okecontrolbuttoninasfar asitwill go
nel.Holdthechokevalveandlever assembly
ndtightenthecontrolwirecollarscrewon the
ewsecuringthechokewirecabletothe linkage
TTLECONTROL.
etorthrottlecontrolbuttonontheinstru-
ssibletothe driver'srighthand(L,fig.105).
acceleratorpedaluppercontrolarmbya
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
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ANDELECTRICALACCESSORIES
lingthethrottlecontrolbutton outwardin-
gine.It isusedwhenstartingthe engineand
inespeedduringthe warmingupperiod.
open-end,%0-in.
k(%e-in.open-endwrench)thatsecures
tothe instrumentpanel.
wdriver)inthethrottlecontrolwire re-
ecollarfromthewire.
yout themountingholeintheinstrument
andnut.
edin subparagraphliabove.
ssemblythroughthehole inthepaneland
ockandnutheldin positiononthebackside
ethrottlecontrolsleevemustregisterwith
tinghole.Insertthecontrolwirethroughthe
ontrolarm.Installthecontrolwireretaining
e roundendofthecollar towardthearmand
ttonin asfarasit willgoagainstthe
throttlecontrolwireretaininngcollaragainst
trolarmandtightentheretainingcollar screw
(fig.105).
mentpanelislocatedatthe frontofthe
ghtlybelowthefrontdeckto provideprotection
permit readyvisibilityandaccessibilityof
geofthe panelispaddedforprotectionto
(fig. 105).
H,open-end,y8-in.(2)
nd,7/!6-in.
open-end,%8-in.
groundstrap(par.55 n).
gleverbyremovingthecotterpin and
ers).Movethe leversrearwardoutoftheway.
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_
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nletpipeat thebrassjamnut(3/8-in.and
es)andtheoutletpipeatthe bottomofthepump
renches).Disconnecttheoilpressuregage pipe
).Disconnectthespotlightsilverwire onthe
htswitch(screwdriver).Disconnecttheelec-
instrumentpanelsocket.Disconnectthecar-
eatthe acceleratorpedalcontrolarm(screw-
.open-endwrench),spacer,andnut
)fasteningthecompassmountingbracketto
emovethe2 capscrews,flatwashers,lock
thepanelto theuppersupportbrackets(Vz-in
e).Removethe2capscrews(V^-in.socket,and
hers,andnutsthatsecureeachsideof thepanel
ngthatthewiringharnessclip bracketisheld
crewandtheaxleunitventilatorpipe clipby
Also,notethat thefrontbombcasewiretub-
owermountingboltsateachside.
ownaslimitedby theinstruments,con-
ecessary,removethecompassandmounting
3b(3)).Toremovethe panelfromthe
esandlinesasdirectedunderthe paragraphs
mentsandcontrols.
edin subparagraphbabove.
talledby reversingtheremovalprocedure.
neededotherthanto makesuretheprimer
nnectedsecurelyandallwiresareconnectedto
evarious electricalgages.
G.
ringiscontainedina mainharnessand
ms.Themainharnessconnectsthecontrols
ntpanelwith therelatedunitsin theengine
edintheconduitor channelontheright-hand
neauxiliaryharnesscarrieswireswhichcon-
urrentand voltageregulator.Theotherharness
gtheregulatorwiththelargefiltermountedon
ecompartmentrightforwardwall.Nospecial
equiredinconnectionwiththeelectricalwir-
ntthatall terminalsandconnectionsbekept
ationofthe vehicleandunits,electrical
nce(fig.109).
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_
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NDELECTRICALACCESSORIES
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
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CESUPPRESSION.
erferencewiththeradioequipment,the
learefully suppressed.Suppressorsareused
theplugs.Also,a suppressorisusedonthe
hecoilanddistributoratthe distributor.The
t,theignitioncircuit,andammeterleadsare
efilters.Thesefiltersaremountedina group
ginecompartmentrightforwardwall.Con-
switchside oftheignitioncoiland atthearma-
tor.In ordertoprovideadequategrounding,
gulator,ignitioncoil,largegroup filter,andthe
ntedwithinternaland externaltoothwashers
ntsoftheunits andthesurfacestowhichthey
stheseunitsrequiredefinitegrounding,the
the mountingboltskepttightatall times.
acterizedbyaclickingsoundintimewith
o anyoneorseveralcauses.Thedifficulty
onsystemunitsor wiring.Acrackeddistribu-
dterminalswillcontributetoradionoise.If
e,thecapmust bereplaced.Thesameistrue
hatanyevidenceofacrackorburned elec-
entoftherotor.Inorderto eliminateradio
hecheckmustalsoincludea carefulexamina-
.A completereplacementofwireshaving
nmustbemade.A sparkplugwithcracked
odeswillcontributetoradiointerferenceand
ition coilisatfault,as determinedbyasub-
atisfactory,itmust bereplaced.Replaceany
nsers,orsuppressorswhichproveto beatfault.
ehicleinspection,allgroundsmustbechecked
danydefectivepartsmustbereplaced.
tectedas arhythmicwhineintimewith
nthegeneratorchargingcircuitwhichincludes
rwithassociatedwiringaswellas thegenera-
ultfromfaultyunits inthesystemorfrom
smallcondensermountedonthegenerator
cementincaseofinterferencehavingthis
etheconditionofthebatterybytestand,if
argedbattery.Iftheconditionis notelimi-
ergroupbyreplacement.
regulatormaybe responsibleforaradio
whichthesoundisintermittentandnot timed
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
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ANDELECTRICALACCESSORIES
speed.Aregulatornoise mayresultifthe
sarelooseor ifthesmallfilter whichis
egulatorisshortedor open.Toremedythecon-
ormountingboltsandreplacethe filteras
isnoteliminated,theregulatormust bere-
eration,allconnectionsintheelectrical
ekeptcleanand tight.Inaddition,itis im-
oltsfor theenginecompartmentlidbekept
ensatorsaresuspendedthroughfourrubber
ssmountingbracketwhich,inturn,is secured
ha supportbracketandabracefromthesup-
e compassislocatedimmediatelybelowand
strumentpanelface,andit iseasilyvisible
hedriver.A smalllightilluminatesthecom-
redtothevoltmeterswitchsothat thelight
his operatedtoclosethevoltmetercircuit.
ssealedinfluid andwilloperateupto 15
Exercisecaretoavoidstrikingand breaking
edindicator.
he compasscontainsacompassaccessory
tsrequiredto compensatetheinstrumentafter
n thevehicleistobe operated.Compensation
swill behandledbyordnancepersonnel.
mountingbracketassemblyisremovedand
H,open-end,3/8-in.
open-end,~,\,;-in.
ENCH,socket,Vi0-in.
crewdriver)oneachsidewhichhold the
othecompasscase.
sslightwiresbyremovingtheblackwire
witchterminal(screwdriver)andthered
rmountingstud(3/8-in.open-endwrench).
mountingbrackettohullbracebolt,nut,
sbracket(7/j0-in.boxwrenchanda "\^-\n.
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_
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-15
(~1(i-in.socketwrench)withlockand
nd locksthatsecurethecompassmounting
panelsupportbracketTheforwardnuts
ththefingers whiletheentireassemblyis
ocedurewheninstallingthecompassand
bly.
edandinstalledas follows:
eoutthe 4screwsfasteningtheleftside
ovetheplate.
assunitwith thelefthand,removethe4
efacewhichsecurethecompasstothecase.
wardsothatthe projectionontherearof
themountingbracket.Thenliftthecompass
ecase.
ompassinthecase,reversethestepsgiven
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_
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8
ION.
sprovidedtodemolishthevehiclein the
rytoabandonitwhilein acombatzone.The
mercontrolswitch,threebombcases,detona-
r,andanelectriccircuitfordischargingthe
chhavingacapacityofthreepoundsof TNT,
beinglocatedon theforwardfaceofthebulk-
ssistantdriver'sseat;one ontheinnerwall
edriver's seat;andoneonthe leftofthe
eachbombcasecoverisa warninglight,det-
tricalwiringconnector.
quipmentandWiring
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
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-15
dinpositionand arenotremovable;how-
dilyremovedbylifting upwardtopermitthe
ges.
ofadeviceto dischargethebombs5min-
erationbybreakingtheglassfaceof thetimer
gtheredtimercontrolpin. Thetimercontrol
forwardfaceofthebulkheadandis readily
driver.
ET,%6-in.
bulkhead,removethe2nuts(%6-in.socket
ndle),lockwashers,andflatwasherssecuring
e forwardfaceofthebulkhead.Disconnect
asewires atthesocketinthe bottomofthe
ngthewire connectorclockwise.Thenpull
sforwardand offthebulkhead.
edin subparagraphbabove.
edurewhenreinstallingthetimercontrol.
NER.
arriedina metalcasemountedonthefor-
tothe rightofthetimer control.Thecontainer
assistantdriver.
ET,7/16-in.
H,open-end,%6-in.
secover.Usinga%0-inchsocketextension,
nchopen-endwrench,removethe2bolts,nuts,
herssecuringthecasetothe forwardfaceof
edin subparagraphbabove.
edure.
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_
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CTIONS.
onatorsinthe bombcasesbeabsolutely
htmountedoneach bombcaseisnotlighted.
sthatthecircuitthrough thetimercontrol
ted,andthebombswill becomeimmediately
rgeandif thedetonatorsandelectricalcon-
ring position.Thedetonatorsmustnotbe
sif thewarninglightsarelighted.
previously,liftoff thebombcasecoverand
gesofTNT.Replacethecover.
ipmentinOperation.
secoverand remove3detonators.This
dbytheassistant driverwhothenpasses2
installationin theforwardbombs.
socketcoverfromthetop ofthebombcase
clockwiseandliftingupward.Insertadeto-
connectorwithwirefromthelightcircuit
overbyturningit counterclockwiseandlifting
nectoronthedetonatorsocket,pressthe
urnit clockwise.
thetimercontrolcaseusingthebutt of
ool orpieceofequipment.Pullthered timer
mpletelyoutofthetimer controlcase.Re-
ntrolpinplacesthetimerin operation.Five
thecontactpointswithinthe timercloseto
cuitanddischargethebombs.
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
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-15
sts139
140
CLATURELISTS.
tomaticpistol,andsub-
e,andautomaticgun....SNLT-l
1A1SNLB-28
,Thompson,M1928A1
antitank)SNLB-36
Browning,M1918,
SNLA-4
(Studebaker)SNLG-154
dlubricatingmaterials;re-
miscellaneousrelated
clatureListsareastabulated
NL'sis maintainedinthe
SupplyIndex"OPSI
CATIONS.
cal..30,alltypesTM9-1211
M9-294
un,cal..45,M1928A1.FM23-40
un,cal..45,M1928A1TM9-1215
M23-7
bricating,andweldingma-
uedby theOrdnance
1-455
630
528,andSCR-538TM11-600
454
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
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ction.
nanceTM10-525
ecautions,accidentsTM10-360
nsTM10-545
ender,andradiatorrepairsTM10-450
10-580
M10-540
attackFM21-40
M1-455
0-550
quipmentAR30-1055
quipmentAR850-18
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
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-15
s,wir-
ories)
212
213
60
eaner)
g145-146
umgrade14
es,cal..3026
cialprecau-
61
t-
53
0-191
ver
29
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
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08—109
09
28
eaning124
l
ases)
dvesicant56
10
tedby
cialpre-
nandre-
electric
t
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
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-15
ntenance59
33
. 130-132
d
93
91-93
-14
dmainte-
al139
ectrical
.211-212
212-213
elec-
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
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xle
53
ng,and
or)
d
93
....91-93
F...54
Fto
enance..60—61
tlidand
tlidscreen
eCooling
onnect...85
onnect..84 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
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84
ushing
olyte.
..
g
109
mperature)
nce62
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
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pera-
5-206
ssion216-217
204-205
d..207-209
ainte-
pres-
),mainte-
8
n30-33
on.33
0
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
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-15
tenance.62
onsys-
on...59
)61—62
rsal
dterms58-59
n)
adand
e,adjust-
icals(See
tedby)
nespeed..11
gability14
2
with...103
36
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
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u s e # p d - g o o g l e
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ataon....11
n. .30-33
on....33
8—151
ulationin
10
ehicle19-20
(SeeInspec-
84
ession216—217
t,rear)
cation.117
tion37
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
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u s e # p d - g o o g l e
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170
ordetailed
t151
. .151-152
ontrols,
maintenance63
-15
F... 54
Fto
17
or,servic-
tment159-160
on37
s.. ..54
rence216-217
tenance.63
ensions)
ghts(See
tch)
derIn-
ctricalac-
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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u s e # p d - g o o g l e
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