tm 9-816 autocar u 7144
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CALMANUAL
ARCH 1944
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NICALMANUAL
ARCH 1944
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arch1944
TractorTruck(AutocarModel
heinformationandguidanceofall con-
.(3-27-44)
TARYOFWAR:
ls,seeFM21-6.)
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ERATINGINSTRU
.........................15
eddata235-8
eration4 69-15
al
.....7-1015- 23
emain-
.....11 1523-35
...........16-1735- 45
towage
.....1846-49
AINTENANCEINSTRUCTIONS
ificationrecords1950
...........20-2150-55
tive
.....2255-85
....2385
.............24-4585-107
ance,and
....46-55107-119
....56-57119-130
60130-134
..............61-66134-143
ystem...67-71143-147
pertinentinformationinTBORD-20,2* Jan44andOFSTB800-21.
udespertinentinformationfromTM 10-1569,6Mar42.Together
832A,this manualsupersedesTM10-1569.
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RTRUCK(AUTOCARMODELU-7144T)
8148-157
157-165
g
75-179
79-181
universal
85-187
87-189
m111-127189-212
esystem..128-132212-215
elbearings,
bsorbers.136-138220-225
43225-228
-152228-235
system....153-168235-249
76250-255
79256
ssion180-184257-261
porary
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RATINGINSTRUCTIONS
publishedforthe informationand
personnelchargedwiththe operation,main-
ofthemateriel
ionofthe4-to 5-ton4x4Tractor
144T),thismanualcontainstechnical
eidentification,use,andcareofthe mate-
intotwoparts.Partone,sectionI through
ginstructions.Parttwo,sectionVIII
vesvehiclemaintenanceinstructionsto
edwiththeresponsibilityofdoing main-
urisdiction.
atureoftherepair,modifications,or
copeorfacilitiesof theunit,theresponsible
einformedsothattrainedpersonnelwith
entmaybeprovided,orproper instructions
LATEDDATA
d2).
torTruck(AutocarModelU-7144T)
le.PowerisfurnishedbyanRXCmodel
cessarypowercanbetransmittedtothe
trallylocatedtransfercase.Hubconstruc-
e mountedduallyatbothfrontandrear.
hecabcarriestwospare tires.Alarge
dtotheframemidwaybetweenthewheels
l.Abatteryboxandtwoair reservoir
larpositionontheright side.
nufacturedinbothopenandclosedcab-
ructionswiththemateriel,thisTechnicalManualhas
eofcompletetechnicalreview.Anyerrorsoromissions
esor,if extensive,byanearlyrevision.
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RTRUCK(AUTOCARMODELU-7144T)
T
ront
n)
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LATEDDATA
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RTRUCK(AUTOCARMODELU-7144T)
ng:
0ft
0lb(4thgear)
nespeed2,300rpm
t
40qt
ty3pt
pt
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OPERATION
er(fig.3).This leverislocatedin
transmissiongearshiftleverandthe front
disusedto engagethehighandlowspeed
NOTE:Thelow speedgearcannotbe
xledeclutchleveris inthe"IN"position
er(fig.3).Thislever islocatedat
ever.I tengagesanddisengagesthefront
"IN"positionautomaticallycarriesthe
he "LOW"rangeposition.Declutchlever
entlyonlywhenthetransfercaseshiftlever
shiftLever(fig.3).Thisleveris
fercaseshiftlever,andisused toshiftall
sion.
ver(fig.3).Thislever, locatednext
epropellershaftbrake attherearof the
.3).Thispedalis locatedontheright
,andoperatesthe servicebraketostop
clutchpedal,locatedat theleft
,is usedtoengageanddisengagetheclutch.
heclutchhasapproximatelyIViinchesof
torelease.
fig.19).Thisswitchis locatedon
heoperator'sseat,andis usedtocomplete
atteryandcrankingmotor.
.3).Thisswitchis locatedonthe
eclutchpedal,andis usedtoraiseand
isgage islocatedontheleft side
dindicatestheviscosityof theengineoil
or"heavy."
geis locatedontheleftsideof the
tesgeneratoroutputinamperesvarying
30.
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TRUCK(AUTOCARMODELU-7144T)
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OPERATION
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RTRUCK(AUTOCARMODELU-7144T)
3).Thisgageis locatedontheleft
elto therightofthe ammeter.Itindicates
erationoftheauxiliary6-voltbattery.
. Thisgage,locatedatthecenter
owstheamountof airpressureavailablein
etachometerislocatedatthecenter
eblackhandshowsenginespeed inrevo-
trumentisequippedwith akeythatis
whichregistersthehighestrevolutionsper
noperated.
isgageis locatedatthecenterofthe
tesroadspeedandrecordstotal miles
. Thisgageislocatedatthe center
he rightside,andindicatesoilpressure.
3).Thisgageis locatedontheright
el,andindicatestemperatureoffluid inthe
gageislocatedontheright sideof
owsthequantityof fuelinthefuel tank,
edon.
atorValves(fig.3).Thesetwo
eftside oftheinstrumentpanel,andtheir
eed ofthetwowiperarms.
LightSwitch(fig.3).Thisswitch
tpanelbehind thesteeringcolumn.It
atesin fourpositions.
rolislocatedatthe centerofthe
toreducetheamountofair admittedto
variousdegreesofa richerfuelmixture.
his switchislocatedatthecenter
dcontrolstheengine electricalsupply.
Thiscontrolis locatedatthecenter
he rightoftheignitionswitch.It serves
aseorreduceenginespeed.
tch(fig.3).Thisswitchis located
rumentpanel.Itis arheostattypeswitch
tpanellightswhentheheadlightandblack-
position.
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OPERATION
atingLever(fig.3).Thisleveris
olumnjustbelowsteeringwheel,andinde-
lerbrake.
).Thispedalis locatedatrightof
nditcontrolsspeed ofthevehicle.
witch.Thisswitchislocatedatthe
entpanel.It controlstheblackoutdriving
ngabovetheleft headlight.
sbutton islocatedatthetop center
dgivesoperatormanualcontrolof horn.
LE.
ce.Performtheservicesinitems1
eattemptingtostarttheengine.Start and
,below)andthen completetheBefore-
einstrumentpanelinstructionplates
brake(fig. 3)topreventvehiclefrom
missiongearshiftleverinneutralposition
ullchokeoutallthe way(fig.3);other-
oneat all.Pulloutthrottle.control(fig.3)
ewillbe neededforawarmengine.Turn
ition(fig.3).Depressclutchpedal
enginestarts.Depresscrankingmotor
efires,then releaseimmediately.Push
kecontrolwhenengineruns smoothly.Dur-
buzzingnoise willbeheard,indicating
operateservicebrakes.Donotoperate
gency,untilthisnoisestops.Increaseengine
airpressuremorerapidly.If buzzersounds
n,stopimmediatelyanddeterminecause
engageclutchbydepressingclutch
shiftleverineither "HIGH"or"LOW"
onloadand roadconditions.Forheavy
ad"HIGH."Vehiclecannotbemoved
alposition.Movemaintransmissiongear-
position(fig.4).Releasepropellershaft
sacceleratorpedaltoincreaseengine
yreleaseclutchuntilclutchisfully engaged.
iltruckgetsunderway.Shift maintrans-
sfollows:Depressclutchpedal;placegear-
n;and engageclutchmomentarily.De-
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RTRUCK(AUTOCARMODELU-7144T)
ndplacegearshiftleverin secondposition
increaseenginespeed.CAUTION:Do
onsperminuteasindicatedbytachometer
on,passingthroughall thegearscon-
tgearis reachedatwhichtheenginepulls
oa lowergear,usethesameprocedure
ear,withthefollowingexception:When
positionandclutchismomentarilyengaged,
oximatespeedrequiredtopropelvehicleat
ergear.Thendisengageclutchandquickly
osethrottlebyremovingfootfrom
plybrakecarefullybydepressingservice
icleisnearlystopped,disengageclutch,
ongearshiftleverinneutralposition.When
ershaftbrake;thenreleaseclutchandservice
stopengine,turn ignitionswitchto
reswitchiscompletelyopentoavoidrun-
Attachtowingcabletotowing
romtowingtruckto airlineoftruckto be
ontaxledeclutchlever(fig.3)in "OUT"
transfercaseshift leverto"HIGH"posi-
nsmissiongearshiftlevertotheNo.5 or
4).Pull outchokeandthrottleinto
g,and turnignitionswitchto"ON"posi-
ftbrakeleveranddepressclutchpedal.
gclutchpedalslowlywhentowingspeedis
rts,disengageclutch,andadjustcontrols
.Ifnecessarytostop vehiclebeforeengine
blefromtowingvehicle,usepropellershaft
e.Checktiresforproperinflationto
35).Attachtowingcabletotowinghooks.
wingvehicle,ifany,totrailer connections
hicletobe towed.Movethefrontaxle
"position(fig.4),and placemaintrans-
eutralposition(fig. 4).Pushpropeller
aydowntothereleasedposition.Ifair
isbrakeprovidestheonly possiblemeans
ecarefulinusingpropellershaftbrake
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SUALCONDITIONS
vere.Ifnecessarytohoist frontendoftruck
per,usingcaretoavoid crushingairtubing.
etweentowtruckandbumpertoprevent
owtruck.Ifnecessarytohoist rearof
eentireframeimmediatelyinfrontof rear
gsuretoget chainbetweenspringandframe
load.Attachnecessaryblockingbetween
il topreventcollision.Straightenfront
eringwheeltopreventturning.
SUALCONDITIONS
ATION.
utomotiveequipmentatsub-zero
oblemsthatdemandspecialprecautionsand
mbothoperationandmaintenancepersonnel,
talfunctionalfailureareto beavoided.
ofgasolineis designedtoreducecold
es;thereforethewintergradefuelshouldbe
tion.
Gasoline.Dueto condensationof
erwillaccumulateintanks,drums,and con-
es,thiswaterwillformice crystalsthat
buretorjetsunlessthefollowingprecautions
filterpaper,oranyothertype of
epassageof water.CAUTION:Gasoline
eratesstaticelectricitythatwillresultin a
ovidedtogroundthe electricity.Always
betweenthecontainerandthetank,to
d.
ble.Themorefuelthereisin thetank,
ir willbefromwhichmoisturecanbe
edalcohol,Grade3,tothefuel tank
willreducethehazardof iceformationin
nersarethoroughlycleanandfreefrom
them.
ormovingacontainer,allowthefuel
tankfromit.
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RTRUCK(AUTOCARMODELU-7144T)
ontainerstighttopreventsnow,ice,
terfromentering.
omdispensingequipmentandfrom
eforeremovingcapto refuelvehicle.
IFFERENTIAL.
t,SAE80,wherespecifiedonfigures
ntLubricationGuideNo.502,issuitablefor
0 F.Ifconsistenttemperaturebelow0 F
arcaseswhilewarm,and refillwithGrade
t,whichissuitablefor operationatalltem-
ade75 universalgearlubricantisnot
lgearlubricantdilutedwiththe fuelused
ortionofonepartfuelto sixpartsuniversal
d.Dilutemake-upoilin thesameproportion
cases.
armedup,engageclutchand maintain
or5minutes,oruntil gearscanbeengaged.
st)gear, anddrivevehiclefor100yards,
heengine.Thiswillheatgear lubricantsto
erationcanbeexpected.
catechassispointswithgeneralpur-
ING.Drainhousing,ifpossible,oruse
muchlubricantas possible.Refillwithuni-
e75,or,if notavailable,SAE80universal
fuelusedin theengine,intheproportion
sSAE80universalgear lubricant.Dilute
oportionbeforeit isaddedtothe housing.
canpointswhereengineoilis pre-
elightlubricatingpreservativeoil.
byone ofthefollowingmethods,
ce:
denclosurewhennotinuse.
raincrankcaseoilwhilestill hot.Place
usplaceinthe cabtoindicatecrankcase
rmplaceifpossible;otherwise,heatoil
ginesectionwithtarpaulin.Placefire
3hours beforeengineistobe started.A
typeblowtorch,andordinarykerosene
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SUALCONDITIONS
UTION:Becarefulinapplyingflame
efromawarmplaceintosubzerotem-
y.
tingpropellershaftbraketo avoid
elstopreventrollingofvehicle,andkeep
frozenpropellershaftor servicebrakes.
tlyforbrokenscrews,bolts,orother
ednuts.
gasoline,orwith Dieselfuelinan
overseveraltimestomixoiland diluent.
peration,rediluteoilifvehicleis tobeleft
3ormorehours.Use diluentforboth
ionasfollows:
ntity
toeach4V2qt
qttoeach31/2qt
each5qt
ttoeach4 qt
increasesengineoilconsumption.Check
stems.
POUND.Protectthesystemwithanti-
ne-glycoltype)foroperationbelow+32* F.
applytouseofnew antifreezecompound.
EM.Beforeaddingantifreezecom-
ystem,andcompletelyfreeitfromrust.
een cleanedrecently,itmaybenecessary
eanwater,andagaindrain.Otherwise
ningcompound.
tallhoseandreplaceif deteriorated.
ugs,andpetcocks,andtighteni fnecessary.
foreaddingantifreezecompound.Correct
or airintothecoolingsystem.
MPOUND.Whenthecoolingsystemis
stemwithwatertoaboutone-thirdcapacity.
ound,usingtheproportionofantifreeze
ystemcapacityindicatedbelow.Protect
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SUALCONDITIONS
andtightenallconnections,especially
urethatno shortcircuitsarepresent.
perfunctioningbynotingquality
oroughly,andcleanorreplacepoints.
y.Incoldweather,slightlypittedpoints
starting.
ndadjustsparkplugsor replace,if
maketheenginefire,reducethegapto
commendedfornormaloperation(par.
nitionmoreeffectiveatreducedvoltages
ngcarefully.Besurethatthe spark
rretarded.
iesdecreasessharplywithdecreasing
mespracticallynilat40 F.Donottry to
batterywhenithasbeenchilledto temper-
batteryhasbeenheated,or unlessawarm
Seethatthe batteryisalwaysfully
eterreadingbetween1.275and1.300.A
otfreezeat temperatureslikelytobe
cclimates,butafullydischargedbattery
+5 F.
atterywhenit hasbeenexposedto
essthebatteryisto bechargedimmediately.
atterynotputon charge,thelayer
pandfreezebeforeit hasachanceto
tscarefully.Checkforshortcir-
turearoundsockets.
seethat thesparkplugs,wiring,or
tarefreefromice.
Engine.
OTORMECHANISM.Besurethatno
eenleftonthecrankingmotorthrow-out
eordirtisliableto keepthegearsfrom
emtoremainin meshaftertheenginestarts
thecrankingmotorandnecessitate
okeis necessarytosecuretherich
orcoldweatherstarting.Checkthebutter-
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RTRUCK(AUTOCARMODELU-7144T)
esallthe wayandotherwisefunctions
ELPUMP.Thecarburetor,whichwill
eatnormaltemperatures,isliablenot to
wtemperatures.Besurethefuelpumphas
gm,asthis willpreventthefuelpumpfrom
elrequiredto starttheengineatlow tem-
peedsarereducedtobetween30and 60
eraturesbelow0 F,donotuseoil in
gealand preventtheeasyflowofair.
ingsolvent,dry,andreplace.Iceandfrost
erscreenscancausean abnormallyhigh
uretorairhornhose,resulting incollapse.
eandcleansedimentbowl,strainers,
anksumpdailyto removewateranddirt.
bands,particularlyonnewvehicles,
hentheyare verycold.Alwayshaveablow
eseparts, iftheybindpriorto moving,or
ehicle.Parkingthevehiclewiththebrake
stofthebinding.Precautionmustbe taken,
es,toblockthewheelsorotherwiseprevent
RATURESONMETALS.Inspectthe
resistanceofmetals,orresistanceagainst
edatextremelylowtemperatures.Operation
groundcausesstrainand joltingwhichwill
ornuts jarringloose.
EDisconnecttheoil-lubricatedspeed-
nd whenoperatingthevehicleattempera-
.Thecablewilloftenfailto workproperly
dsometimeswillbreak,duetothe excessive
cosityof theoilwithwhichit islubricated.
TION.
esevehiclesinhightemperatures
nceofcoolingunits,lubrication-filteringde-
xtremelyhightemperatures,water-saving
verflowtanksshouldbe employed.Avoid
earratios wheneverpossible.Makefre-
vicingofaircleaners,fuelfilter,and oilfilter
dduringoperationindustyareas.Watchthe
constantly.Checkandreplenishoiland
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SUALCONDITIONS
N:Inspectvehiclefrequentlyforbroken
alparts,andfor loosenednuts.
nance.
mationofscaleandrustincoolingsys-
ingoperationinextremelyhightempera-
ntivesshouldalwaysbeaddedtothe cooling
er.Avoidtheuseof waterthatcontains
whichmaycausescaleandrust formations.
oroughlycleanandflushthecooling
lswhenoperatinginextremelyhightem-
PUMP.Inspectfanbeltatregular
ssary(par.78).Waterpump mustbekept
n.
operationofthermostat(par.76).
alibratedtemperaturetopreventoverheat-
Checkhoseconnectionsfrequentlyfor
lof recommendedcoolantandmain-
gradeof lubricatingoilinlubricatingsys-
raturefrequently,andiftemperaturerises
inspectcoolingsystem.Flushcoolingsys-
andin radiatorfins;blowoutwithcom-
ns,checkoilfilter,carburetor,aircleaner,
reveryfew hours,andserviceasnecessary.
s,uselubricantssparinglyandclean
elubricating.
edsurfaceswhenmakingrepairs.
sunforlongperiods,becausethis
ssible,placevehicleundercovertoprotect
verinactivevehicleswithtarpaulinsifno
e.
eanandfilledwith clean,fresh(not
whenpossible.Noteenginetemperature
uregagefrequently.Stopvehicleimme-
nginereaches212 F.
esfromatmospherebyrenewingpaint
dkeepingafilm oflightengineoilon unfin-
ces.
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RTRUCK(AUTOCARMODELU-7144T)
hichhavebeenexposedtosalt water
yafilm oflightengineoilto unfinishedmetal
onsofstoredvehicles.Removecor-
eswithflintpaper2/0 (frommachinedsur-
ndapplyaprotectivecoatingofpaint,oil,or
.
zones,cellwaterlevelshould be
shedifnecessarywithpuredistilledwater.
waterfittodrink maybeused.However,
thhighmineralcontentwill eventually
ndshouldbeavoided.
tteriesoperatingintorridclimates
trolytethanfortemperateclimates.Instead
olyteshouldbeadjustedto around1.210to
ttery.Thiswill prolongthelifeofthe nega-
Underthisconditionbatteryshouldbe
Wherefreezingconditionsdonotprevail,
avitiesfrom1.230to1.075.
atterywillself-dischargeatagreaterrate
ndingfor longperiods.Thismustbetaken
peratingintorridzones.If necessarytopark
atteryandstorein acoolplace.
OW,ICE,SAND,ANDFLOOD.
n bothrearwheels,andselectlow
vehiclesteadilywithoutputtingundue
daxles.
s thegeneralhazardencounteredin
ains,andselectthepropergearratio to
withoutimposingunduestrainonengine
ccurs,turnthefrontwheelsin thesame
s skidding.Deceleratetheengine,and
yuntilvehicleisunder control.Proceed
insassoonastheiruse isnolongernecessary.
ewhendrivinginsand istoavoid
hedriving wheels.Ifpossible,layanim-
orbrushin ordertopreventthewheels
loosefooting.Donot letthemotorlabor.
veraltimesifnecessary,untila solidroad
depthof thisvehicle,anddonot
educethevehiclespeedto4 milesperhour
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VEMAINTENANCESERVICES
Exercisecaretoavoidwaterdamageto
ems.Lubricatedpartswhichhavebeen
rmustbeservicedat earliestopportunity.
wmud,snow,oriceto cakeonwheels,
nuckles,andsteeringarms,ortogatheron
e,oilfilter, orairfilteropenings.Inspectand
radiatorcore,fan,and fanbelts.Keepmud
fallelectricalconnections.
nganddestroyingdangerouschemical
noperatinginaffectedareasisknownasde-
eredbyinstructionscontainedinFM17-59.
VEMAINTENANCESERVICES
ficiency,itisnecessarythatthevehicle
edatintervalseachdayitis operatedas
ectsmaybe discoveredandcorrectedbefore
geor failure.Certainscheduledmaintenance
atthesedesignatedintervals.Theservices
ethoseperformedbydriverorcrewbefore-
on,at-halt,andafter-operation,andweekly.
enanceservicesarelistedontheback
PreventiveMaintenanceServiceRecord"
vehiclesofall typesandmodels.Items
esbutnotlistedon W.D.FormNo.48are
uresundertheitemswithwhichtheyare
dontheform thatdonotpertainto the
natedfromtheprocedureaswritteninto
ationmustthoroughlyschooleachdriver
anceproceduressetforthinmanualswhether
onW.D.FormNo.48 ornot
D.FormNo.48thatapplyto thisvehicle
alto providespecificproceduresforaccom-
nsandservices.Theseservicesarearranged
conservethetimeofthe driver,andarenot
mericalorderasshownon W.D.FormNo.
wever,areidenticalwiththoseshownon
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RTRUCK(AUTOCARMODELU-7144T)
ofeachitemappliesalso toanysup-
ction,andgenerallyincludesachecktosee
odcondition,correctlyassembled,secure,or
condition"isusuallyan externalvisual
hethertheunitisdamagedbeyondsafeor
m"goodcondition"isexplainedfurtherby
ntor twisted,notchafedorburned,not
eorfrayed,notdentedor collapsed,nottorn
toseethatit is"correctlyassembled"
linspectionto seewhetheritisin itsnormal
vehicle.
todetermineifitis "secure"isusually
ation,awrench,hand-feel,orapry-barcheck
pectionshouldincludeanybrackets,lock
res,orcotterpinsusedin assembly.
beunderstoodtomeanworncloseto,
ts,andlikelytoresult inafailureif not
cheduledinspection.
ctoryoperatingcharacteristicsbeyond
o correctmustbereportedattheearliest
tedindividualinauthority.
ERVICE.
eisdesignedprimarilyasa checkto
t beendamaged,tamperedwith,orsabotaged
Servicewasperformed.Variouscombatcon-
dthevehicleunsafeforoperationandit is
eterminewhetherornotthe vehicleisincon-
ssiontowhichitis assigned.Thisoperation
,evenin extremetacticalsituations.
erationServiceconsistsofinspecting
ngtotheproceduredescribed,andcorrecting
es.Uponcompletionoftheservice,results
tlytothedesignatedindividualin authority.
DDAMAGE.Lookforanyinjuryto
requipment,causedbytamperingorsabotage,
hellfire sinceparking.Lookinengine
eofaboveconditions,andforloosenedor
riesordrivebelts,loosefuel,oilor coolant
trollinkage.
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VEMAINTENANCESERVICES
ISHER.Seethatextinguisherissecurely
d.Lookforevidenceofopenedoperating
IL,ANDCOOLANTSUPPLY.Check
ckcrankcaseoillevelon dipstick.Check
essarytocompletemissionortooperate
fuelingpoint.Addengine oilandcoolant
ectlevel.NOTE:Anyappreciabledropin
onServiceshouldbeinvestigated,andcause
esignatedauthority.Duringfreezingweather
sinuse,if anyappreciableadditionofwater
eshouldbetestedby secondechelonand
esparefuel,oil, andwatercansarefulland
ANDDRIVES.Examineunits,suchas
ankingmotor,aircompressor,fan,andair
mage,orleaks.Besuredrivebeltsare ingood
mentissatisfactory.BeltsshouldhaveVz-to
eflection.
KS.Checktheair brakereservoir
secureandundamaged,andthatallair line
obesurethatwater(condensation)has
ksandthat draincocksareclosed.
AL.Inspectgroundandalsounderthe
compartmentforindicationsoffuel,engine
ks.Payparticularattentionto fueltanks
ilfilters,radiator,waterpump,waterlines
earcases.Traceanyleaksfoundto their
ortthemtodesignatedauthority.
UP.Startengineandnote anyten-
g.Observeactionofcrankingmotor,par-
ecrankingspeedandengagesanddisengages
eninoperation.Sethandthrottle sothat
revolutionsperminute,andduringwarm-up,
fore-operationServices.NOTE:Ifoilpres-
econds,stopengineandinvestigate.
neis beingstarted,checkoperation
sup,resetchokeasrequired forengineto
ntoverchokingandoildilution.
rmalengine operatingspeedmustbe
minimumatidlingspeedmust be5pounds.
mmetershouldshowpositive(-)-) charge
atslowerspeedswithlightson mayshow
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RTRUCK(AUTOCARMODELU-7144T)
mmeterindicatesthatsecondbatteryor
scharging.Highchargereadingsmaybe
estorestobatteriescurrentusedin starting
age.Readingshouldincreasegradually
ormaloperatingrange157F.to183F.
reis200F.NOTE:Donotmovevehicle
sminimumoperatingrangeof135F.
nehasreachedoperatingtemperature,
"range.
ntershouldindicateactualengine
nygiventime engineisrunning.Readhand
ighestenginerevolutionsperminutereached.
revolutionsperminute.
should register60poundsbefore
mgovernedpressureis105pounds.
etosee thatitregisterstheapproximate
narilytankwill befilledafteroperation
FULL."
WINDSHIELDWIPERS.Iftacticalsitua-
properoperationandtone.Testwipersto
observewhetherthebladescontactglass
oughfullstroke.Inspectfor damage.
EARVISIONMIRROR.Cleanallglass
rrearvisionmirror properlyandseethatit
TS)ANDREFLECTORS.Seethatall
orsareclean.Examinethemforloosenessor
onpermits,openandcloseswitches,and
operly.Includestopand blackoutlights.
FLANGENUTS.Seethatall wheel
nutsarepresentand secure.
mumtirepressureshouldbe 65pounds
mage,andremoveanyembeddedobjects
etweenduals.
DSUSPENSIONS.Inspectspringsand
ttheyare secureandnotdamaged,andthat
gnutsandscrewsare tight.Examineshock
NKAGE.Inspectgearcaseandall rods
eness,damage,orexcessivelubricantleaks.
DBUMPERS.Inspectfendersand
amage.
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VEMAINTENANCESERVICES
NNECTIONS.Inspectallconnections
Examinepintletobe sureitoperatesfreely
atfifthwheelis secureandnotdamaged,that
onworksproperly,andthatitwill lock
ARPAULIN.Inspectcabandtoptarpau-
ors andlatchesoperateproperly,andthat
veraresecure.
NATOR.Besuredecontaminatoris
dsecure.
EQUIPMENT.Besureallitemsare
properlymountedorstowed.
RATION.Beforevehicleisputinmo-
eachedoperatingtemperatureandidles
ecelerateandlistenfor anyunusualvibra-
atisfactoryoperatingcharacteristicsorexces-
RMITANDFORMNo.26.Drivermust
onhis person.ChecktoseethatStandard
rt-Accident,MotorTransportation,Opera-
Guide,andW.D.,AGOFormNo.478are
andproperlystowed.
ERATIONCHECK.TheDuring-operation
sstartimmediatelyasthevehicleisput in
onfollows.
ERVICE.
on,listenforanysuchsoundsas rattles,
hatmayindicatetrouble.Lookforindica-
systemandsmokefromanypartofthe
detectanyodorofoverheatedcomponents
r,brakes,orclutch,fuelvaporfromaleak
s,orother signsoftrouble.Eachtimethe
ted,orvehicleturned,considerthis atest
toryorunusualperformance.Watchthe
oticepromptlyanyunusualinstrumentindi-
ossibletroubleinthe systemtowhichthe
erationServicesconsistofobserving
ngtotheproceduresfollowingtheinstruc-
estigatinganyindicationsof serioustrouble.
tobecorrectedorreportedatearliestoppor-
uledhalt.
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RTRUCK(AUTOCARMODELU-7144T)
NDBRAKES.Footbrakesshouldstop
ctivelywithnormalpedalpressure,andreturn
yafterfootpressureis released.Iftowed
hand-operatedairapplicationvalvesepa-
tionon trailerissatisfactory.Handbrake
asonableincline,leavingone-halfratchet
dlocksecurelyin appliedposition.
chshouldnotgrab,chatter,orsqueal
pwhenfullyengagedunderload.Pedal
travelbeforemeetingresistance.
NS.Gearsshouldshiftsmoothlyand
of meshduringoperation.
ansferunitrangegearsanddeclutch-
fteasilyandquietlyand notcreepoutof
ONTROLS.Thedrivermustbeon the
ineperformance,suchaslackofusual
,unusualnoiseorvibration,and anyindica-
essiveexhaustsmoke.Observeifengine
dif thecontrolsareinproperadjustment,
orbinding.
S.Observereadingsofallinstruments
ontobesureunits towhichtheyapplyare
eshouldshownormaloperatingpres-
tidling,and 30to50pounds atoperating
ration,withalllightsandaccessories
etershouldindicateapositive(+ )chargeat
ychargedbatteries,andregulatorunit
B"ammetershouldalsoshowpositive(+)
eorreportexcessivenegative()readings
age.Gageshouldread157F.to183F.
Maximumsafetemperatureis200F.
eration,viscometerpointershouldre-
range readingmayindicateoildilution.
ndicateoilcontamination,suchaspresence
alreadingsshouldbeinvestigatedorre-
mumreadingshouldbe105 pounds,
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VEMAINTENANCESERVICES
ntershouldregisteractualenginerev-
dpoiptershould notexceedmaximumgov-
ionsperminute.
shouldindicateactualvehiclespeed,
stertotalaccumulatedmileage.
ouldcontinueto registerapproximate
AR.Noteanyindicationoflooseness
side,wandering,shimmy,wheeltramp,or
R.Beonthe alertforanyunusual
ornoisefromwheels,axles,orsuspension
osenessordamage,or under-inflatedtires.
ynoiseor abnormalconditionthat
osetoptarpaulinorcurtains,looseor dam-
ororinspectionplates,ormountedbodyat-
regardedasminimummaintenance
performedunderalltacticalconditionseven
aintenanceservicesmustbeslightedoromit-
vicesconsistofinvestigatingany
operation,inspectingitemslistedbelowac-
followingtheitems,andcorrectingany
enciesnotcorrectedshouldbereported
dindividualinauthority.
DWATERSUPPLY.Checkthefuel
quatetooperatethevehicleto thenext
eling,usesafetyprecautionsforgrounding
wspaceforexpansioninfillerneck.Filler
essurecapvalvesmust befree,andcaps
y.Checkthecrankcaseoilleveland,ifneces-
el.Removeradiatorfillercapbeingcareful
essurecapis used.Checkcoolanttoseethat
plenishasnecessary.Donotfill toover-
tspaceforexpansion.Ifengineis hot,fill
ngat afastidle.
ES:HUBS,BRAKEDRUMS,TRANSFER,
ES.Placehandcautiouslyoneachbrakedrum
abnormallyhot.Inspecttransfercase,
usingsforoverheating,andnoteanyexces-
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RTRUCK(AUTOCARMODELU-7144T)
ANSFERVENTS.Wipecleanandin-
clogging.Ve,ntsmustbekept open.
HAFTS.Inspectalldriveshaftsand
ess,damage,andexcessivelubricantleaks.
erwoundaroundshaftsorjoints.
SUSPENSIONS.Inspectforbrokenor
agedorlooseU-bolts,eyebolts,shackles,
orberbodiesandlinkage,or excessiveshock
KAGE.Examineallsteeringcontrol
agefrictionaljointsforloosenessordamage.
onditionnotedduringoperation.
LANGENUTS.Seethatall wheel
nutsarepresentand secure.
all tiresforunder-inflationordam-
objectsintreadsorcarcassesandfrombe-
etire isinflatedandsecureincarrier.
RAL.Lookundervehicleandwithin
ndicationsoffuel,oil,orcoolantleaks.Trace
rce,and correctorreportthemtoproper
ESANDBELTS.Examineallaccessible
age.Besure generator,fan,andcompressor
ctory.
R.Ifoperatingunderextremelydusty
ctaircleanerandbreathercapto seethat
elivercleanairproperly.Serviceasnecessary.
DBUMPER.Inspectfrontbumper,
ardsforloosenessor damage.
NNECTIONS.Inspectallconnectionsfor
urelockingdevicesaresecure,andthat
pportedsoasnotto chafeonothervehicle
ARPAULIN.Inspectfordamage,orany
shifting01cab.
nwindshield,mirror,light,andwarn-
pectfordamage.
DWEEKLYSERVICE.
eisparticularlyimportant,becauseatthis
svehicleto detectanydeficienciesthatmay
ctsthoseheispermittedto handle.Heshould
gnatedindividualinauthoritythe results
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VEMAINTENANCESERVICES
heduleisperformedthoroughly,thevehicle
ainonamoment'snotice.TheBefore-opera-
ceptions,isnecessaryonlytoascertain
e sameconditioninwhichitwasleftupon
perationService.TheAfter-operationSer-
elyomittedevenin extremetacticalsitua-
tothe barefundamentalservicesoutlinedfor
ssary.
ormingtheAfter-operationService,
andconsideranyirregularitiesnoticeddur-
operation,During-operation,andAt-haltSer-
nServiceconsistsofinspectingandservicing
eitemsoftheAfter-operationservicethat
* )requireadditionalweeklyservices,the
ndicatedinsubparagraph(b)ofeachappli-
ATION.Testengineforsatisfactory
dle.Accelerateanddecelerateengine,and
orbackfire.Listenfor anyunusualnoiseor
ewornorinadequatelylubricatedparts,
tfuelmixture,orfaultyignition.Noteany
nvestigateandcorrect,orreportanydefi-
rationtotheproperauthority.
S.Checkallpertinentinstrumentsto
roperlyandcontinuetoregisterori ndicate
eunitstowhichtheyapply.Stopengine,first
to5 minutesifitis atorbeyondnormal
DWATERSUPPLY.Fillfueltanks.(See
Checkcrankcaseoil,andaddas necessary
eckcoolantlevel,andadd asnecessaryto
E:Donotoverfill fueltanksorradiator.
Infreezingweather,ifanyappreciable
ssary,haveantifreezevaluechecked,andadd
systemagainstfreezing.Donotadd coolant
allsparefuel,oil,and watercansifsupply
NDSHIELDWIPERS.Inspecttheseitems
ndnotdamaged.Iftacticalconditionspermit,
onand tone.
EARVISIONMIRROR.Cleanandinspect
at mountingsaresecure.
S)ANDREFLECTORS.Inspectfor
cticalsituationpermits,testallli ghtsand
ion.Cleanalllenses.
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RTRUCK(AUTOCARMODELU-7144T)
ISHER.Inspectextinguisherforloose-
harge.Ifextinguisherhasbeeninuseor
efillorexchange.
ATOR.Inspectdecontaminatorfor
ullcharge.Ifused, reportforrefillorex-
that theyareclean,secure,andnot
hatcellcapsare fingertight.
topof batteries.Ifterminalcon-
ded,cleanthemthoroughlyandapplyfresh,
htenterminalboltsif loose.Removevent
ctrolyte.Addwaterifrequired,taking
ywillnotbe damagedduringfreezingtem-
besecure,notbulgingorcracked,orleak-
rriershouldbesecure,clean,freeofrust,
ngsareloose,tighten themcautiously
atterycase.Reportanydefectstoproper
ESANDBELTS.Inspectunitssuchas
ankingmotor,fan,waterpump,compressor,
andoilfilters,for looseness,damage,or
dadjustmentofdrivebelts.Beltsshould
pressuredeflection.Investigateandcorrect,
horityanydeficienciesofaccessoryunits
ation.
LWIRING.Inspectallignitionwiring
wipeoffexcessivegreaseormoisture.Also
ccessiblelowvoltagewiringandconnec-
age.Besureall wiringissupported,soas
vehicleparts.
NERANDBREATHERCAPS.
damage.Examineoilin reservoirs
sivedirt.Whenoperatinginsandy or
dserviceaircleanerandbreathercapas
eanerandbreatherreservoirsand
aningsolvent,refillreservoirswithclean
Besureall gasketssealproperlyandthat
secure.
R.
ess,damage,andfuelleaks.
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VEMAINTENANCESERVICES
mentbowldrainpluganddrainoff
ater.Ifdrainingof fuelpumpsediment
orwater,removeandcleanelementin
TROLS.Examineallengineopera-
seness,damage,excessivewear,andade-
ingspares,fordamageand excessive
edforeignmatter,suchasnails,glass,or
rcassesandfrombetweenduals.Checkfor
tionofvalvestem,andpresenceofvalve
ssureasneeded;maximumis65 pounds,
ywornorotherwiseunserviceable
chshowabnormalwearshouldbere-
evenwear.Apparentmechanicaldeficien-
ouldbereportedfor attentionbyhigher
DSUSPENSIONS.Inspectforloose-
lspringsag,shiftedspringleaves,and shock
gateanynoiseorunusualconditionnoted
NKAGE.Inspectlinkageforloose-
steeringgearcaseandfrictionaljointsfor
georlackoflubrication.Investigateany
onnotedduringoperation.
SHAFTS.Inspectalldriveshaftsand
essordamageandexcessiveoilleaks.Re-
woundaroundshaftsorjoints.
RANSFERVENTS.
housingandtransfercaseventsare
,andclean.Inspectforindicationsoflubri-
s,cleanoutpassages,andreinstall
ERAL.Lookinenginecompartment
ationsoffuel,engineoil, coolant,orgear
VELS.Checkgearoillevelsin dif-
ransmission,andsteeringgearhousing,and
f low.Correctlevelsarefromloweredge
chbelowwhencool.
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RTRUCK(AUTOCARMODELU-7144T)
TANKS.
or loosenessordamage.Openreser-
offall accumulatedcondensation.
mountingsandlineconnections.Clean
reaseoroil.
DBUMPERS.Inspectfrontfenders,
uardsforloosenessor damage.
NNECTIONS.
rucktractorfifthwheel(ifused),or
ainsforlooseness,excessivewear,ordamage.
ndinggear,ifconnected,andun-
tingsurfacesoffifthwheelplateandking-
ectthemforwearanddamage,andapply
ase.Rehitchthetrailer,noticingwhether
y.Alsonotewhetherthe latchingmech-
ndlatchessecurely.
ARPAULIN.Inspectcabcarefullyfor
aminetoptarpaulinandside curtainsfor
e,andsee thattheyaresecure.
G.
orexternalassemblynutsor screws
mountingandaxleflangenutsand
eyebolts,shacklesandreboundclips.Also
panionflanges,enginemountings,transfer
arms,towingconnections,oranyother
sorscrewsif necessary.
EASNEEDED.
hasshackles,hinges,latches,con-
,oranypoint whereinspectionhasindi-
ngis needed.
ointsofthevehicleindicatedon the
ecessary.
GINEANDVEHICLE.
oroildrippingsfrominside cab,from
dexteriorofengine.Wipeoffexcessdirt
icle.
whenpossible.Ifnotpossible,wipe
ntorcamouflagepatternforrustor for
auselightreflections.Makesurethat
leunlesscoveredfortacticalreasons.
enintowaterforwashing,becareful
getintowheelbearings,gear casesor
tsorwiring.
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DEQUIPMENT.
eandtoolliststo seethatallitemsare
eethatthey areingoodconditionand
ed.
andequipmentof rustordirt,and
necessarywhenpossible.Seethattools
rpand properlyprotected.Makesure
ymountedorstowed.NOTE:When
esureallinspectionplatesarereplaced
ationGuideNo.502(figs.5 and6)
ntenancefor4-to5-ton4x4TractorTruck
TheGuideissupplementedinthis
wsofimportantlubricationpoints(figs.7,
acedon orisissuedwith eachvehicle
atall times.Intheeventthevehicleis
heusingarmsshall immediatelyrequisition
ommandingOfficer,FortWayneOrdnance
n.
sontheGuidearebindingon alleche-
hereshallbeno deviationsfromthese
edontheGuideare fornormalopera-
eseintervalsunderextremeconditions
rlowtemperatures,prolongedperiodsof
erationinsandordust, immersioninwater,
nyoneof whichmayquicklydestroythe
ubricantandrequireservicingin orderto
rdamagetothemateriel.
edinthe"Key"in accordancewiththree
ve+32F.,+32F.to0F.,andbelow0F.
ngegradesoflubricantsby maintaininga
ofthevehicleduringtheapproachto change-
rlyobservantwhenstartingtheengine.Slug-
onofthickenedlubricantsandthesignal
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RTRUCK(AUTOCARMODELU-7144T)
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TRUCK(AUTOCARMODELU-7144T)
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RTRUCK(AUTOCARMODELU-7144T)
ibedforthe nextlowertemperaturerange.
arytochangegradesof lubricantsonly
econsistentlyinthenexthigher orlower
ingoccurssoonerduetolubricantsbeingtoo
ONINSTRUCTIONS.
Eachpieceofmaterielissupplied
tadequatetomaintainthemateriel.Be
ntbothbefore andafteruse.Operate
andinsuchmannerasto insureaproper
t.
glubricationfittings,greasecups,oil-
mreadilyidentifiableonthe vehicle.Wipe
thesurroundingsurfacebeforelubricant
provided,applynewlubricantuntil
om thevent.Exceptionsarespecified
nGuide.
ividualUnitsandParts.Thefol-
mentthosenotesontheLubricationGuide
nandserviceofindividualunits andparts.
Guideitself aretothesubparagraphbelow
ngsbeforeapplyinglubricant. Lubri-
orcedfrombearing,unless otherwisespeci-
hassispointsafterwashingtruckand
ndicatedarefornormalservice.For
ed,heat,water,sand,mud,snow,rough
tervalbyVaorl/2, ormoreifconditions
dry-cleaning,orOIL,fuel,Diesel,
shallparts.Use ofgasolineforthispur-
willbethoroughlydrybeforelubricating.
checklevelandrefilloilreservoirof
evel withusedcrankcaseoilorOIL,en-
F.orSAE10 +32F.to0F.UseOIL,hy-
Below-40F.,removeoil andoperate
aily,underextremedust conditions,re-
heair cleaneroilreservoirsofsome
nd"CAUTION"oillevelmarks.Whenre-
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OR
ING
VEL
DALS,WATERPUMP
andTransmission LubricationPoints
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RTRUCK(AUTOCARMODELU-7144T)
L
DRAG
E
EEL
andSprings LubricationPoints
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LERPLUG
ASEA
ROLBRACKET
LERSHAFT
ubricationPoints
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RTRUCK(AUTOCARMODELU-7144T)
he"NORMAL"levelmark;the"CAUTION"
chedbytheoilif theaircleanerisservicedas
les,orweeklyonsomemodels,removetop
wash.Cleanandrefilloilreservoir tobead
oilorOIL,engine,SAE30, above+32F.to
om0F.to-40F.Below-40F, remove
6,000miles onsomemodels,removeand
dbreather.Every1,000miles,removecom-
shall parts.Washcurledhair,dry,and
aseoilorOIL,engine,SAE30,above+32 F.
UseOIL,hydraulic,from0F.to-40K.
eplacedry.Every1,000miles,remove
ineof brakegovernorbyremovingpres-
hstrainer andreassemble.
ywhenengineishot.Toaid incom-
dof thetruckshouldbeslightlyhigher
LL"markongage,or4/4level.The
wedtodropbelowthe2/4mark.Run
echeckoillevel.CAUTION:Besure
iliscirculating.
0miles,drainsediment.Every
f filterbecomesclogged,drainfilterhous-
ewfilterelements.Runenginea fewmin-
vel,andaddoilto"FULL"markongage.
g. 7;E,fig.8;A, fig.9).Weekly,
evelgroundand,if necessary,addlubricant
velwhencold,orto pluglevelwhenhot.
sindicatedonguide.Drainonlyafter
entsclean.Transmissionhas"SUMMER"
ngsatfillerplug.
ONTWHEELS)(A,fig.8).With
oveplugonunder sideofjoint;alsore-
d installfitting.Fillthroughfittingto
fittingandreinstall plug.
OINTS(BandF,fig.9). Apply
,No.1above+32F.andNo.0 below
ntil itoverflowsatreliefvalve,andto slip
dfrom ventatuniversaljointendof
very6,000milesor 6months,remove
akegovernor,andlubricatethe upper
sof OIL,lubricating,preservative,special.
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ING.-Attimeofdisassemblyofclutch
nt,oroverhaul,cleanandrepackbearing
pose,No.2.
6,000miles,wipedistributorbreaker
generalpurpose,No.1above+32F.
nd lubricatebreakerarmpivot,wick
weightpivotsandslots withonetotwo
0,above+32F.or SAE10+32F.to
ubricating,preservative,special.
WHEEL).Sometypesofearlymodels
s.Keeptheturntable,couplerpinlock-
bricatedwithGREASE,generalpurpose,
o. 0below+32F.If coveredwithgrit
cate.Lubricatethekingpinlockwith
e+32F.orSAE10+32 F.to0F.Below
preservative,special,asneeded,topermit
er.
g.9).Every1,000miles,lubricate
odends,clevises,hinges,latches,aircom-
pintlehook,andhandbrakelinkagewith
+32F.orSAE10+32F.to 0F.Below
preservative,special.
Every1,000miles,applyFLUID,
rbushingsinshockabsorberlinkage.CAU-
oLUBRICATIONSERVICE.Engine
crankcasestarter(Delco-Remy),starter
te),starterpinionhousingbearing,and
uire lubricationservice.
EDAND/ORLUBRICATEDBYORDNANCE
EL.Thetransfercasedeclutchingunitmust
tedbyordnancemaintenancepersonnel.
ubricationinstructionsareclosely
sused,andsatisfactoryresultsarenotob-
e ordnanceofficerresponsibleforthemain-
completerecordoflubricationservicing
oster(W.D.,AGOFormNo.6).
calizedviewsoflubricationpoints
menttheinstructionsontheGuideandin
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RTRUCK(AUTOCARMODELU-7144T)
STOWAGEONTHEVEHICLE
IPMENT,ANDSPAREPARTS.
followarefor referencepurposes
sedasabasis forrequisition.
No.
-peen16-oz41-H-523
tudnut41-S-1517-50
handle41-J-73-5
oint,6-in41-P-1650
eavy-dutyinteg.handle,6-in.
sshd.,type2,4-in.blade 41-S-1638
sshd.,type3,6-in.blade 41-S-1640
12-in.(^e-in.capacity)41-W-488
ble-hd.alloysteel,3/8-x%6-in...41-W-991
ble-hd.alloysteel,Vfe-x1%2-in.41-W-1003
ble-hd.alloysteel,%6-x
ble-hd.alloysteel,%-x
ble-hd.alloysteel,3A-x Va-in...41-W-1012-5
ble,auto,15-in.(3s/s-in.capac-
heelbearingnut4l-W-1493-25
rew%6-in.hex,6l/2in. long....
eelbearingnut41-W-1991-10
mm,1%6-in.hex,w/handle....
t
double-end,J%6in. sqand
41-W-3838-40
ating
st SNLG-510
eTD (2)8-C-1625
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STOWAGEONTHEVEHICLE
No.
eTS (2)8-C-2440
CCL458-E-202
15
ept.No.502
G-1330-60
huck
ng(BWE 215604)
BWE220570)
elope)
ngbottom,Vi-pt13-0-1530
eA,3Ain.wide,8-ozroll17-T-805
motorvehiclesetNo.1,con-
4-lb41-A-1277
ndle41-M-720
point41-S-3170
ge,Wlbspool22-W-1067
arts,consistingof8-C-5498-50
0
750
,6-to8-V,sgle-tung-fil,3-cp
sealed,oneopening,
ealed,4openings,6- to
dstop,sealed,6-to8-V8-L-419
ed(boxed)42-P-5347
-P-5355
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TRUCK(AUTOCARMODELU-7144T)
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STOWAGEONTHEVEHICLE
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RTRUCK(AUTOCARMODELU-7144T)
STRUCTIONS
ECORDS
TASSEMBLYREPLACEMENT
cleissuppliedwithacopyof AGO
esameansof keepingarecordofeach
unitassemblyreplaced.Thisformincludes
eandU.S.A.RegistrationNumber,instruc-
onpertinentto theworkaccomplished.
eformbeusedas directedandthatitre-
the vehicleisremovedfromservice.
sonnelperformingmodificationsor
cements,mustrecordclearlyontheforma
mpleted,andmustinitialtheform inthe
eachmodificationiscompleted,recordthe
e,andMWOnumber.Whenmajorunit
es,transmissions,ortransfercasesarere-
oursand/ormileage,andnomenclatureof
epairsandminor partsandaccessory
recorded.
onreceipt,byathirdor fourtheche-
clefor modificationorrepair,maintenance
WOnumbersofmodificationsappliedprior
o.478.
T
reconditionedvehicleisreceivedat
necessaryforsecondechelonpersonnelto
hevehiclewilloperatesatisfactorilywhen
urpose,inspectallaccessories,subassem-
ndequipmenttoseethattheyare inplace
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T
addition,theywillperformar un-intestof
edinAR850-15,accordingtoproceduresin
es.Deficienciesdisclosedduringthe
illbetreatedasfollows:
eswithinthescopeofthemaintenance
zationbeforethevehicleis placedinservice.
ondthescopeofmaintenanceechelonof
higherechelonforcorrection.
riousnaturetothe attentionofthe
URES.
eethatportableextinguisherispresent
tit momentarilyforproperoperation,and
R.Fillfueltank.Checkcrankcaseoil
dasnecessarytobring tocorrectlevels.
nfueltankand radiator.Duringfreezing
freezeandaddas necessary,toprotectcool-
g.CAUTION://thereisa tagattachedto
concerningengineoilin crankcase,follow
drivingthevehicle.
uelfilterforleaks,damage,andsecure
ns.Removesedimentbowldrainplug,and
yappreciableamountofwaterordirtis
sandcleancasesandelementsindry-cleaning
s,usingnewgaskets.
rometerandvoltagetestofbatteries.
orcleanwater,to one-halfinchaboveplates.
nwaterfromallair brakereservoir
s.
EATHERCAP.Examinecarburetor,air
andcrankcasebreathercaptoseeiftheyare
re.Removeelementsandwashthoroughly
lreservoirstobeadlevelwith freshoiland
allgasketsarein goodcondition,andthat
ionsaretight.
ELTS.Makesurethataccessoriessuchas
gulator,crankingmotor,distributor,water
compressoraresecurelymounted.Check
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RTRUCK(AUTOCARMODELU-7144T)
compressorbeltsforgood conditionand
vel/2-to3/4-inchfinger-pressuredeflection.
Examineallaccessiblewiringandcon-
oodcondition,securelyconnected,and
l tires,includingspare,areproperly
ure thatstemsareincorrectposition,and
inger-tight.Removeobjectslodgedin
betweenduals,andinspectfordamage.
NUTS.Seethatallwheelmountingand
tand secure.
ER.Examinefendersandbumperfor
ONS.Inspecttowinghooks,trucktractor
kforloosenessor damage.
rethatallcaband bodymountings
ments,hardware,glass,doors,andwindows
dcondition,secure,andoperateproperly.
perlyassembled,ingoodcondition,and
etrailerconnectingmechanismoperates
rely.Seethattrailerbrakelines andcon-
tionandsecurelyconnectedorsupported.
shield,andwindowliftmechanismtosee
torily.
acompletelubricationofthevehicle,
ordingtotheinstructionsontheLubrication
earcases,wheelbearings,andotherunits
14).Checkallgearcaseoillevels,and add
rrectlevel.Changeonlyif conditionofoil
ifgearoil isnotofproper gradeforexisting
e.NOTE:Performsteps(15)through(18)
NSIONS.Inspectspringsforsag,brokenor
ips.Checkshockabsorbersforsecure
Besurethatallsteering arms,rods,
odconditionandsecure.Makesurethat
ntedandnotleakingexcessively.
nspectallpropellershaftsand uni-
areingoodcondition,correctlyassembled,
kingexcessively.
RVENTS.Seethataxlehousingand
sent,ingoodcondition,andnot clogged.
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T
ketobesureit opensandclosesfully
chokebutton.
uringcoldweather,whenstarting
eatingunitforproperoperation.Start
gmotoractionis satisfactory,andengine
hardstarting.Sethandthrottle torunengine
pperiod.
ingengine,observeifoilpressure is
ssures,hot,are30to50poundsat operating
matidlespeed).Stop engineifoilpressure
onds.
etershouldshowslightpositivecharge
rtingengine,untilgeneratorrestorestobat-
arting.The"B"ammetershouldshow
eryisreceivingcurrentfromgenerator.
ginetemperatureshouldrisegradually,
normaloperatingrange,157Fto183F.
ntershouldindicateactualengine
nygiventime.Red pointerindicatesand
onsperminuteattained,andshouldnot
ernedenginespeed,2,400revolutionsper
nginehasreachedoperatingtempera-
gshouldremainin"ideal"range.
gwarm-up,airpressureshould build
orshouldcut offairfromcompressorat
gaincutin ifpressureinlines andreservoirs
arningindicator(buzzer) shouldsoundat
.
ouldregister "FULL"iftankhas
Observeifenginerespondsproperlyto
eratewithoutexcessiveloosenessorbinding.
ELDWIPERS.Seethatthesekernsare
re.Iftacticalsituationpermits,test horn
ne.Seeif wiperarmswilloperatethrough
adecontactsglassevenlyandfirmly.
WMIRRORS.Cleanallbodyglassand
senessanddamage.Adjustrearviewmir-
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RTRUCK(AUTOCARMODELU-7144T)
REFLECTORS.Cleanlensesandin-
sand damage.Iftacticalsituationpermits,
itchestoseeiflampsrespondproperly.
okundervehicleandwithinengine
onsoffuel,oil,andcoolantleaks.Traceany
correctorreport themtodesignated
ENT.ChecktoolsandOnVehicleStow-
ureallitemsare present,serviceable,and
ed.
efollowingsteps(1)to (11)inclu-
fthevehicle.Onvehicleswhichhavebeen
thecourseofdeliveryfrorn thesupplying
educethelengthof theroadtesttothe least
keobservationslistedbelow.CAUTION:
evehicleatspeedapproachingthemaximum
ateshouldbeavoidedduring thetest.
NDGAGES.Donotmovevehicleuntil
hes135F.Maximumsafeoperatingtemper-
adingsof oilgage,ammeters,temperature
chometer,viscometer,andfuelgagetobe
eproper functionoftheunitstowhichthey
speedometerregistersthevehiclespeed,
rsaccumulatingmileage.
AND.Testserviceairbrakestoseeif
elywithoutsidepull,chatter,orsquealing.
loseswhentreadlepressureisreleased,and
sivedropinairpressure whenbrakesare
ouldholdvehicleonareasonableincline,
elinreserveandshouldlock securelyin
N:Avoidlongapplicationofbrakesuntil
pletelyseated.Donotapplyfulltreadlepres-
ncystop.
tchoperatessmoothlywithoutgrab,
gement,orslippagewhenfullyengagedunder
-inchfree travelbeforemeetingresist-
eclutchpedalatanytime,and donot
wclutchseverelyorunnecessarilyuntildriven
omeproperlywornin.NOTE:Never
omelessthan three-fourthsinch.Adjust
onsinparagraph59.
RANSFER.Gearshiftmechanismshould
ly;gearsshouldoperatewithoutunusual
mesh.Testfrontaxledeclutchingandpower
oequipped)forproperoperatioa
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NTIVEMAINTENANCE
eeringactionforbindingorlooseness,
lltoone side,wander,shimmy,orwheel
mnbracketandwheelaresecure.
rtforanyabnormalengineoperating
noise,suchaslackofpullingpoweror ac-
sfiring,stalling,overheating,orexcessiveex-
nginerespondsproperlytoallcontrols.
onthealertthroughoutroadtestfor any
ndattachments,runninggear,suspensions,
telooseness,damage,wear,inadequate
tedtires.
ILEINTERVALSFORSERVICES(9)TO
AKS.Withairpressureat governed
akesapplied,stoptheengine.Thereshould
pressurein1minute.
utiouslyhand-feeleachbrakedrumand
mperatures.Examinetransmissionandrear
nsofoverheating,orexcessivelubricantleaks
nning,andfuel,engineoil, andcool-
e,lookwithinenginecompartmentandunder
aks.
dReports.
atvehicleTechnicalManuals,Lubrica-
No.26(DriversReport-Accident,Motor
,AGOFormNo.478(MWOandMajor
entRecord),areinthe vehicle,legible,and
.S.A.registrationnumberandvehiclenom-
on FormNo.478fornewvehicles.
-intest,corrector reportanydeficien-
conditionofvehicletodesignatedindivid-
NTIVEMAINTENANCE
EVENTIVEMAINTENANCE
ntenanceinspectionsandservicesarea
functionoftheusing armsandaretherespon-
operatingorganizations.
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RTRUCK(AUTOCARMODELU-7144T)
uencyofthepreventivemaintenance
consideredaminimumrequirementfornor-
Underunusualoperatingconditions,suchas
ustyorsandyterrain,itmaybenecessaryto
nceservicesmorefrequently.
CIPATION.Thedriversshouldaccom-
sistthemechanicswhileperiodicsecond
enanceservicesareperformed.Ordinarily
hevehiclefor ascheduledpreventivemainte-
blycleancondition;thatis,it shouldbedry
greasetosuchanextentthat inspectionand
ampered.However,thevehicleshouldnot
ghlyclean,sincecertaintypesofdefects,
ooseorshiftedparts orassemblies,aremore
slightlysoiled ordusty.
n thosecontainedinthegeneralpro-
specificproceduresinstep(5)whichfollow,
tperformanceofapreventivemaintenance
fadeficiency,refertoothersectionsof this
eminvolved,orreport todesignatedau-
S.Thesegeneralproceduresarebasic
efollowedwhenperformingtheserviceson
cificprocedures.NOTE:Thesecondechelon
ghlytrainedintheseproceduresso thatthey
ally.
edsubassembliesareinstalledto correct
betakentoseethattheyare clean,correctly
ted,andadjusted.
ricantretainerseals,a coatingofthe
overthesealingsurfaceof thelipofthe
aleatherseal,itshould besoakedinSAE
cticable)foratleast30minutes.Thenthe
dcarefullybyhand beforeinstallingthe
cratchedormarred.
ofeachitemappliesalso toanysup-
ction,andusuallyincludesachecktosee
ngoodcondition,correctlyassembled,
rn.Themechanicmustbethoroughlytrained
nsoftheseterms.
condition"isusuallyan externalvisual
heunit isdamagedbeyondsafeorservice-
condition"isexplainedfurtherby the
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NTIVEMAINTENANCE
rtwisted,notchafedor burned,notbroken
yed,notdentedor collapsed,nottornorcut
toseethatit is"correctlyassembled"
linspectionto seewhetherornotit isinits
ninthevehicle.
todetermineifitis "secure"isusually
ation,awrench,hand-feel,orapry-barcheck
pectionshouldincludeanybrackets,lock
res,orcotterpinsusedin assembly.
beunderstoodtomeanworncloseto,
ts,andlikelytoresult inafailureif not
cheduledinspection.
eareindicatedbyrepeatingtheitem
hichshowtheintervalat whichtheservices
howthat theparts,orassemblies,areto
yservices.Forexample,anitemnumberin
siteaTIGHTENprocedure,meansthatthe
ectmustbe performed.Thespecialserv-
aryadjustmentsinaccordancewith
smanual,specialbulletins,or othercurrent
vehiclewithdry-cleaningsolventto
dirt,andotherforeignmaterial.Afterthe
emin cleanfluidanddrythemthoroughly.
s cleanuntilreassembled,andbecertainto
romrubberorother materialthatitwould
tivegreasecoatingfromnewpartssince
agoodlubricant.
sapplieseithertolubricationopera-
nthevehicleLubricationGuide,ortoitems
des,but shouldbeperformedinconnection
rations,ifpartshavebeendisassembledfor
stsofperformingspecialoperations,
rywater,drainingandrefillingunits withoil,
heoilfilter orcartridge.
perationsshouldbeperformedwith
forceonthewrenchhandle)totightenthe
chanicalpractice.Usetorque-indicating
Donotover-tighten,asthismaystripthreads
ningwillalwaysbeunderstoodtoinclude
ockwashers,locknuts,andcotterpins pro-
ing.
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RTRUCK(AUTOCARMODELU-7144T)
itdifficulttoperformthe complete
proceduresatonetime,theycan sometimes
nningtocompleteall operationswithinthe
bletimeathalts, andinbivouacareas,must
ssure thatmaintenanceoperationsarecom-
etacticalsituation,itemswithspecial
ouldbegivenfirst consideration.
eventivemaintenanceproceduresthat
oseoutlinedonW.D.AGOFormNo. 461,
intenanceServiceWorkSheetforWheeled
ertainitemsontheworksheet,thatdonot
ot includedintheproceduresinthis manual.
equenceofitemsonthe worksheetisfol-
dures,butinsome instances,thereisdevia-
emechanic'stimeandeffort
ES.Theproceduresforperformingeach
thly)and6000-mile(6-month)mainte-
cribedinthefollowingchart.Eachpageof
atits leftedgecorrespondingtothe6000-
enancerespectively.Veryoftenitwillbe
ceduredoesnotapplyto bothscheduled
determinewhichproceduretofollow,look
ondingtothemaintenancedue,and,where-
ars,performtheoperationsindicatedop-
tuationdoesnotpermit
oseitemswhichrequire
e vehicle.Whenaroad
eforpreferably5miles and
PerformtheBefore-
ribedinparagraph12,asa
erornotthevehicleis in
maketheroadtestsafely,
pplyoffuel,engineoil, and
vernorCut-off,Low
gwarm-upperiod,op-
ngenoughtoobserveifair
normalratetospecified
tgovernorthencuts off
engineatnormalidling
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NTIVEMAINTENANCE
romsystembyrepeated
serveifcompressorcutsin
essureindicator(buzzer)
below60pounds.Anyab-
e,exceptfrombrakeap-
gatedbymakingelimina-
es.
pressureshouldbebe-
normaloperatingengine
f minimumpressureat
pengineifoilpressure
operationatanyspeed.
rshouldshowapositive
after startingengine,
batteriescurrentusedin
onconditionofcharge
oadcarried.Withbat-
gulatorunitcut in,am-
lyslight charge."B"am-
etoindicate"B"batteryis
nerator.Stopengineand
readingswithenginerun-
oriesturnedoff.
oil atnormaloperating
ouldremainin"ideal"range.
y"range,inspectoil fordirt
o"thin"range,itmayin-
GE.Readingshouldin-
arm-uptonormaloperating
F.CAUTION:Donot
temperaturehasreached
mperature200F.
ershouldindicateac-
rminuteatany giventime.
emainsathighestrevolu-
dshouldnot exceed
nginespeed,2,400revolu-
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RTRUCK(AUTOCARMODELU-7144T)
cleisin motion,speed-
ualvehiclemilesperhour,
rdtotalaccumulatedmile-
uldregisterapproximate
lltimes.
ertoitem2forspecifi-
hieldWipers.Iftacti-
ornsforproper operation
ionmirrorandwipers to
ditionandsecure.Test
Makesurethatwiper
yandoperatethroughtheir
onsofloosewipermotor
onmirrorforcorrect
ng,BrakingEffect,
ter,PedalTravel,
akesatvariousspeeds
ootpedalsufficientlyto
stance,andobservebrake
oneside,unusualnoise,or
esswithlittleeffort,and
nwhen released.Apply
eeifit functionswithout
hicleonreasonablein-
,andobserveifitholds
verhasatleastone-half
atchetand pawllatchthe
Noise,Chatter,Grab,
uldbe 11Ainchesbefore
lutchfordragwhenshift-
ouldstop transmission
emadewithoutclashing.
enpedalis depressed
tiveordryreleasebearing.
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NTIVEMAINTENANCE
noteanytendencytochat-
engaged,orslippagewhen
reeplaytobecomeleas
ch.Adjustonlyaccording
r(LeverAction,De-
e).Leversshouldmove
oneasilyand quietly.Test
atfrontaxleengagesprop-
atmayindicateloose
ayindicatedamaged,ex-
uatelylubricatedparts.
Wander,Shimmy,Side
Withvehicleinmo-
fullyinboth directions,and
nyindicationoflooseness
ncytowander,shimmy,
veifsteeringcolumnand
nandsecure.
,Power,Noise,and
veengineoperatingchar-
moothlywithoutstalling.
forknocksandrattlesas
nddecelerated,andwhile
eavyloads.
ER.Operatetheengineat
ratios,notingifthevehicle
ndacceleration.Noteany
ting.Aslight pingduring
.Continuedorheavyping
heavyaccumulationof
berfuel.
hevehicleinalowgear,
ratortothetoeboard,and
terreading,noteiftheen-
esnotexceedthe specified
ute.
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RTRUCK(AUTOCARMODELU-7144T)
ents,Cab,Wheels).Be
stforanynoisethat may
attachmentsmountedon
ngs,floorplates,doors,wind-
particularlyforindica-
ings.
Withtheairpressureat
ndthebrakesapplied,stop
otbe anoticeabledropin
fany pressuredropoccurs
air brakesystemforleaks
ms,Hubs,Axles,Trans-
andcautiouslyonall
bstosee iftheyareab-
housings,transmission,
ationsofoverheating.
Fuel).Lookinengine
vehicle,forindicationsof
eaks.Traceanyfoundto
reportthem toproper
NS
y
Axles,Transmission,
erplugsinfrontand
ndtransfercase,andcheck
velisfromloweredge of
elowwhenhot .Allow
tosubsidebeforechecking
bricant.Ifan oilchange
,orconditionof lubricant
ecessary,drainandrefill
l.Note-anyindicationsof
atoilsealsor gaskets.
elts,Accessories,
haftsandJoints,Axles
enginerunning,ob-
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NTIVEMAINTENANCE
ESSORIES.Accelerateand
mentarily,andlistenforany
s thatmightindicatedam-
ywornengineparts,drive
atethenoise,andcorrector
ty,anyunusual engine
dtest
R,PROPELLERSHAFTS
WHEELBEARINGS.With
mediategear,andfront
ratetheseunitsata con-
useofthe handthrottle.
ethatmight indicate
sivelywornunitparts.Also
sandwheelsfor vibrations
onsin theotherunits
nessorunbalance.Allof
otateatapproximatelythe
wheelsmayindicatetight
Alsobesure tolocate,cor-
erauthorityanynoisenoted
ts.Lookforcracks
t,orcompressionleaks
andgaskets.CAUTION:
betightenedunlessthere
s.Iftighteningis neces-
gwrench,andtightenhead
ceandto52V2foot-pounds
nces,CoverGaskets).
ceonlyifnoisy;intake
ot).Exhaustclearance
earancestoabovespe-
tems,springs,seatsand
,correctlyassembled,and
erstobesuretheyare in
hemsecurely,usingnew
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RTRUCK(AUTOCARMODELU-7144T)
wnFrames,Carrier,
ge).Inspectbattery
Cleantopofbattery.In-
olts,posts,straps,andhold-
dition.Testspecificgrav-
onW.D.AGOFormNo.
ngsbelow1.225indicate
edorreplaced.Electrolyte
eighthsinchabovesepara-
getestaccordingtoin-
estwhichaccompanytest
tageonW.D.AGOForm
uldnotbe morethan30
ravitymustbeabove
levelbyaddingdis-
entirebatteryand car-
oded.Cleanbatterycable
andhold-downframescare-
ttery.
ts).Withoutremoval,
einsulatorsfordamageor
nleaks.
minetoseeif theyare
icularattentiontobroken
bonoroxidedeposits,andto
eanplugsthoroughly.If
e,installnew orrecondi-
tinstallplugs untilitem
etpluggaps to0.025inch
electrodes.
ompressionwithallspark
sionpressureatcranking
85 pounds.Thereshould
undvariationbetweencyl-
onpressuresonspacepro-
et,W.D.,AGOFormNo.
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NTIVEMAINTENANCE
vel.)Withengineidling,
ecovers,timinggearcover,
aks.Stop engine,and
rankcase,checktoseeif
oilchangeisdue,or
enecessity,draincrank-
velwith freshspecifiedoil.
againuntil item24has
ctfiltersand external
eyarein goodcondition,
emovefilterbodydrain
ts.Removefiltercartridge
tridgechangeisdue,or
cessity,replacewithnew
etsareinplace.Tighten
urely.
ntings,Hose,Capand
d,OevrflowPipe).In-
oseeif theyareingood
leaking.Besureoverflow
ged.Examineconditionof
socontaminatedthat
leaned.Ifcleaningisnec-
ordingtocurrentdirectives
e,recommendedcleaner
materials.Cleanallinsects,
mcoreair passages,and
s.CAUTION:Useonly
woodor bluntinstrument
ezeis inuse,testits pro-
nspace,providedonback
ormNo.461.
nalllooseradiator
tions,andhoseclamps.
ectpumptosee ifitis
andnotleaking.Examine
nglooseness.Inspectfan
onand thatbladesand
vebeltsandexaminefan
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NTIVEMAINTENANCE
pplyafewdropsofen-
alvefulcrumpin.Applya
y-cleaningsolventon
nor.
ervalveclearances
aminealldrivebelts
dition,excessivewear,and
rivepulleysandhubsto
ditionandsecurely
othatdrivebeltshave
uredeflection.
apter.Noteiftheyare
yassembled,andsecure.
haftforkinks,and thecon-
lleaks.
ints,Shaft,Advance
orbodyandexternal
nditionandsecure.Ex-
s:
Cleandirtfromcapand
r,andbreakerplatetosee
on,secure,andserviceably
tiontocracksincapand
lsandconnections,andto
tpoints.See thatpoints
dto 0.020inch,whenwide
rty,removeassembly,
ent,drythoroughlywith
ateitsfrictionpartsvery
movewickandlubrication
acethemaftercleaning
ointsare pitted,burned,
bledegree,replacethem.
pointsareburned,asthis
eaningpoints,usefine file
seemery),andblowout
r.
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RTRUCK(AUTOCARMODELU-7144T)
-feelforexcessivewear
nstallrotoronshaft,and
yfingerforcefor normal
ttedbymechanism.Note
ositionwhenreleased
g.
bricatecamsurfaces,
accordingtoinstructions
gapsto0.020inch.
l,ignitionwiring,in-
ts,toseeif theyareingood
yconnected,andproperly
oltagewiringinengine
er.
spectforlooseness,dam-
skets.Examineforevi-
es,usuallyindicatedby
nallmanifoldassembly
retoraircleanertosee
ecurelymountedandcon-
emovereservoirandele-
gsolvent,anddry.Fill
thcleanor usedengineoil,
asketsareinplace and
nectionstight.
nkcasebreathercapto
n,secure,andnotleaking.
lement,andwashclean
efillreservoirwithfresh
esecurely.
tle,Linkage,andGov-
are ingoodcondition,
securelyinstalled.Make
otleakand thatthecon-
keandthrottleshaft,isnot
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NTIVEMAINTENANCE
veifchokevalveopensfully
eleasedposition,ifthrottle
acceleratorisfullyde-
oris secureandproperly
inefilterto seeifitis
ymountedandconnected,
fvalve,andremovefilter
nt.Washcleanindry-clean-
esecurely,beingsuregas-
N:Ifelementcannotbe
ceunit.Donotscrapsele-
supply,andrecheckfor
pectpumptoseeif it
elymounted,andnotleak-
wlandscreen,andwashin
uregasketisinplaceand
einstalled.
ure sideoffuelpump,
item39,seethatpressure
reshouldbe2 pounds
maximum,atidlespeed.
eed).Starttheengine,
onofcrankingmotoris
rlysurethatitengagesand
excessivenoise,hasade-
diftheenginestarts readily.
rts, notewhetheroilpres-
dicationsaresatisfactory.
dWater).Withen-
ointsofoil, fuel,andcool-
eanyleaksfoundto
ortthemtoproper author-
.Withenginerunning
nnected,observeifignition
whetherautomaticcon-
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RTRUCK(AUTOCARMODELU-7144T)
sengineis accelerated
mingtospecifications
est.Inspectasfollows:
mgagetointakemani-
ormalidlespeedbymeans
adjustthe idlemixture
uumgageindicatesasteady
elatteradjustmentsare
ewillbesaved.
nginerunningatnor-
gageshouldreadabout18
ould besteady.Aneedle
d15inchesmayindicate
gasketorvalve.Anex-
ndicatealeakin intake
erateanddecelerateengine
dicatorfailstodropto
throttleisopened,and
st24inchesas throttle
cationofdilutedoil,poor
ormalrestrictionincarbu-
st.NOTE:Abovereadings
ll beapproximatelya
feetof altitude.
ons,Voltage,Current,
latorunittoseeif itis
ymountedandconnected,
gecircuittester,and
or,currentregulator,and
toroutputproperly.Fol-
manual,orthosewhich
nt.Replaceiftest shows
N:Thistestshouldbe
unithasreachednormal
ection,Line).Inspect
reservetanktosee that
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NTIVEMAINTENANCE
clean.Besurecapispres-
tychain.Notewhether
otexcessivelyworn.Ex-
ation,andcheckfordam-
ose,andtestsystemfor
ormingitem47.
nsandCaps,Condi-
SpareCarrier).Inspect
Observeifallvalvestems
correctposition,andif
nd installedsecurely.
withpliers.
resforcuts,bruises,
oveembeddedglass,nails,
lartreadwear,watching
upping,featheredges,and
tireswornthinatcenterof
bletires),andexchange
Anymechanicaldeficien-
nsshouldbedetermined
toproperauthority.Wheel
ularwear shouldbe
Fronttires,wornirreg-
rearwheel positions.
resandnondirectional
edonsamevehicle.Direc-
sshouldbemountedso
ointdownwhenviewed
tiresonall frontwheels
sothat "V"ofchevrons
romfront ofvehicle.
erlyinflatedtirestosee
dingtoover-allcircumfer-
eewhethersparetirecar-
nandsecure.
ckringsorflanges
nand secure.
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RTRUCK(AUTOCARMODELU-7144T)
elrimflangeor lugnuts
inflatedto65 pounds
umferenceofalltires in-
stobemountedon duals
ywillnothavedifferences
exceedingthe%-inchlimits
vesandbulletins.Mount
ertireoutside.Thevalve
dpoint out;thevalvestem
ntin, andshouldbeop-
Sparesmustbematched
useonone oftheroad
eeding90days.Acon-
uringthesemaintenance
ngthetire-matching
eelsuntilwheelbearing
ports,Camsand
easfollows:Remove
ntenance,severalwheel
pto 52aregroupservices
storderfor economyof
bly.
Cleandirtandgreasefrom
hields),keepingdry-
mlinings.Examinedrums
yareingoodcondition,se-
msareexcessivelyworn
fcamsandshaftsare
heycontact.Alsonoteif
ncollarandifshaftsand
upportcapscrewsand
y.
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NTIVEMAINTENANCE
,Anchors,Springs).
spectionholestoseeif
dsmaycontactdrums
operation.If vehiclehas
er,mud,orloose sand,
ndexamineliningfordam-
eplaced,removeall
s,andserviceasnecessary,
te,andadjustall removed
edinitem52 belowfor
inormethodifneces-
,andinspectliningstosee
on,tightlysecuredtobrake
ntactwithdrums,freeof
xcessivelyworn.Alsosee
tion,properlysecuredto
ctingsprings,andthat
siontoreturnshoesprop-
hicknessofliningat most
ghfor atleast1,000miles
dsarelikelyto contact
reasefromlinings with
ressedair.
trelateditemsto60in-
ustshoesbyminormethod.
talled,adjust bymajor
graph126.Adjustslack
sh-rodtravelisat mini-
raph126.
eals,DriveFlanges,and
asfollows:
oseeiftheyare ingood
heckforloosenessofwheel
olvewheels,andlistenfor
edbearings.Inspectaround
sforlubricantleaks.
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RTRUCK(AUTOCARMODELU-7144T)
S.Noteiftheyarein
re tightenedsecurely.
wheelbearingsandoil
dry-cleaningsolvent.Ex-
onestosee iftheyarein
edsurfacestheycontactare
ere isanyexcessivewear.
henalloftherelated
erewheelbearingsaretobe
ngsasfollows:Besureall
e handsclean,anduseclean
wheelhub,the hubcap
sideofspindleoraxleshall
oflubricantto retard
thermachine-packedor
glubricantintoallspacesin
sorouter racesandthe
bricants,andinstallnew
ecessary.
largecavityinwheel
ngswithlubricant.Itwill
als.
wheelbearings,re-
sembliesintoplace.Ad-
tly(par.134).
ports,Camsand
rs,PushRodsand
spectbrakehose,cham-
nd slackadjusterstosee
on,correctlyassembled,
pectandserviceasfol-
Cleanandinspectinsame
ctinsamemannerasin
s,Anchors,Springs).
in item49.
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NTIVEMAINTENANCE
ethodifnecessary.
inspectshoes,linings,
memannerasin item49
nnerasinitem 49.
annerasin item49
emsto60inclusiveare
Bearings,Seals).In-
singsare ingoodcondition.
ksaroundsteeringarms.
ealsand sealflangesare
re.Removelubrication
eoflubricanttosee ifitis
velocityuniversaljoint
lyindry-cleaningsolvent
versaljoint.Inspectparts
onditionandnot exces-
rattentiontouniversal
es,axlesplines,flanges,
ngs.
cknewlubricantwell
versaljointuntilitfills all
es,andraces.Reassemble
aretoreplaceanyunser-
rseals,boots,orgaskets.
tiontoreinstallshims
position fromwhichthey
mblytoinsurecorrectpivot
adjustment.
es,U-bolts,Hangers,
theseitemsarein good
mbled,andsecure.Spring
place.Springleavesmust
correctposition.Thismay
redcenterbolt.Noteif
snormaland approxi-
gersandboltsfor exces-
rybar.
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RTRUCK(AUTOCARMODELU-7144T)
gU-boltssecurelyand
DragLink,Sealsand
ColumnandWheel).
n goodcondition,cor-
bledandmounted,ifsteer-
bricant,andiflubricantis
larattentiontoPitman
mountedandnot bentout
bserveif steeringsystem
armshaftnutsecurely.
caseassemblyandmount-
arenot todisturbadjust-
AUTION:Loosensteer-
ighteningsteeringcase
distortcolumn.
dLinks.Observebodies
oodcondition,securedto
somakesurethatlinks are
frubberbushingsare hard
idtoexposedsurfaces.
rbodieswithspecified
esandadd morefluid.
iris expelledandreser-
tlink,andobserveif ac-
movedbyhand,there
ways.
eals,Flanges,AxleEnd
ontwheels,bearings,
utsin samemannerasin
heelitems.
an,andinspectthefront
sin thesamemanneras
re tochecktheuniversal
flangesareremoved,so
ntmaybe madecon-
ling.
pplyinsamemanneras
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NTIVEMAINTENANCE
ringsinsamemanner
d adjustbrakeshoesas
,Seal,Vent,and
pearstobe outofline,
ontspringeyeboltto center
hside.Distanceshould
singtosee ifitis ingood
Examinepinionshaft
aminesealforleaks.
gventthoroughly.
s,Alinement,Seals,
eseitemsarein good
ecurelyassembledand
ersaljointsareproperly
are notexcessivelyworn,
otexcessivelyworn,and
esealson theuniversal
eak.
ersaljointassembly
tssecurely.
dStrap,SidePans).
goodconditionand
nnected.Besuretoex-
ngine mountingsand
s,thatrubber isnotsepa-
ng.Ifmountingbolts
operly,takingcarenotto
rgreasefromrubber
brakefluidif rubberis
Pawl,Linkage,Disk,
eifratchet,pawl,and
on,secureandnot ex-
notscoredor oily,and
edorworntoothin.
etweenbrakediskand
ke leverisreleased.
Linkage,Return
ravel,whichmustbe
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RTRUCK(AUTOCARMODELU-7144T)
resistance.Examineto
ountedtoshaft,ifclutch
dcondition,secure,and
ctionjoints.Seeifr e-
on tobringpedaltocor-
tchpedalfreetravel
:Nopedaladjust-
orrectprocedure,see
ReturnSpring).Pedal
pectalllinkagetosee if
urelyconnected,andnot
njoints.Besurereturn
pedaltocorrectreleased
e.Seeifapplication
od condition,correctly
ndthatvalveclosesfully
ed.
ervewhethertheyare
re.Openthedraincocks,
n.
Seals,Linkage).Note
oodconditionandsecurely
cantleaksatsealsand
inkageandshiftmech-
ssivewear.
age,Seals,Vent).
condition,,securely
onanddeclutchingcontrol
smissecurelyconnected
e ventisopen.Lookfor
ksatsealsandgaskets.
ged.
rnalassemblyand
ectinsamemanneras
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NTIVEMAINTENANCE
ersaljointand com-
ly.
Seals,Vent,and
samemannerasin item
gventthoroughly.
s,Rods,Seals,and
temsare ingoodcon-
andmounted.Examine
xaminesealsforlubricant
s,U-bolts).Inspect
eras initem56.
Links.Inspectinsame
operatingcheckin
.
yareall ingoodcon-
mountingsusingcoil
e ingoodconditionand
esespringssh
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