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NICALMANUAL
May1944,and WDTBORD103,dated10June1944.
55-1,dated22October1943insofarasit appliestothismanual.
ated25January1944,this manualcompletelysupersedesOFSTB
nsinsofarastheyapplyto thismanual.Thesepublications
me astheyareincorporatedinotheraffectedmanualsor
STB800-21,dated30November1943;OFSTB1700-32,1800-3,
ly1943;WDTBORD60,dated 13March1944:WDTBORD
TBORD126,dated19July1944;WDTBORD20, dated
TechnicalManualsinsofarastheyapplyto thismanual:TM10-
941;TM10-1242,dated15August1942; TM10-1242(revised),
M10-1255,dated6 July1942;andTM10-1322,dated3
ve10-seriesmanualsremainineffectuntiltheyare incorporated
B,TM9-1768C,andSNLG-159,at whichtimetheywillbe
CTOBER1944
TONOFRESTRICTEDMATTER
dinrestricteddocumentsandtheessentialchar-
aterialmaybegiventoany personknowntobein
atesand topersonsofundoubtedloyaltyand
atinginGovernmentwork,butwillnotbe com-
to thepressexceptbyauthorizedmilitarypublic
soparagraph23b,AR380-5,15March1944.)
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ctober1944
nsporterTruck-trailerM19,ispublished
danceofall concerned.
27-44)J
TARYOFWAR:
0);Corps(10);SvC(10);Depts(10);
efof TechSvs(2);Gen
DecentralizedSub-O(3);
&RPoints(5); Ord
(3);OrdDistBrO (3);
rdTkDep(3).
15,9-325.
-67,9-76,9-127,
8,9-327,9-328,
ls,seeFM21-6.)
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es...
RUCTIONS
p-
on-
ANCEINSTRUCTIONS
e
in-
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NCEINSTRUCTIONS(Contd.)
meter
rsal
m..
l
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May1944,and WDTBORD103,dated10June1944.
55-1,dated22October1943insofarasit appliestothismanual.
ated25January1944,this manualcompletelysupersedes
-1.
nsinsofarastheyapplyto thismanual.Thesepublications
me astheyareincorporatedinotheraffectedmanualsor
STB800-21,dated30November1943;OFSTB1700-32,
dated8July1943;WDTBORD60,dated 13March1944;
y1943; WDTBORD126,dated19July1944;WDTB
1944.
TechnicalManualsinsofarastheyapplyto thismanual:TM
er1941;TM10-1242.dated15August1942;TM 10-1242
ry1944;TM10-1255,dated6July 1942;andTM10-1322,
heabove10-seriesmanualsremainineffectuntil theyare
A,TM9-1768B,TM9-1768C,andSNLG-159,atwhich
ysuperseded.
publishedfortheinformationand
towhomthisequipmentis assigned.They
eoperationandmaintenanceofthe45-ton
ailerMl9,aswellasdescriptionsofthe
onsin relationtotheothercomponentsof
owingarrangement:
tainsdescriptionanddata.Itlists the
pmentcarriedonthe vehicle.Italsolists
forthevehicle.
tructions,containsinstructionsfor
ewithdescriptionandlocationof thecon-
ceInstructions,containsinformation
ceofthescheduledlubricationandpreven-
s,andinstructionsformaintenanceoper-
nsibilityofthe usingorganizations(first
ocknumbersinthispartwereobtainedfrom
PartsandEquipmentListofSNLG-159.
ructionswiththemateriel,thistechnicalmanualhasbeenpublished
chnicalreview.Anyerrorsoromissionswillbecorrectedbychangesor,
vision.
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nstructionsforshipmentandlimited
enceswhichincludesstandardnomenclature
ndotherpublicationsapplicabletothe
cableforusein performingprescribed
wwithbriefexplanationsofeach:
26,DRIVER'SREPORTACCIDENT,
N.Onecopyofthisformwillbekeptwith
caseofanaccidentresultingininjury or
filled outbythedriveron thespot,oras
eafter.
RMNo.48,DRIVER'STRIPTICKET
ENANCESERVICERECORD.Thisform,properly
dtothedriverwhen hisvehicleisdispatched
hedriverandtheofficialuserof thevehicle
opriatepartsof thisform.Theseforms
hiclesinconvoyorontacticalmissions.The
ontainsthedriver'sdailyandweeklypre-
vicereminderschedule.
.478,MWOANDMAJORUNITASSEM-
RD.Thisformwillbeusedby allpersonnel
normajorunitassembly(engine,transmis-
cks)replacementtorecordclearlythe
eted,data,vehiclehours,and/ormileage,
enclatureofunitassembly.Personnelper-
nitialin thecolumnprovided.Minor
oryreplacementswillnotberecorded.
.6,DUTYROSTER.Thisform,slightly
chedulingandmaintaininga recordofve-
ions.Itmaybeusedforlubricationrecords.
.461,PREVENTIVEMAINTENANCE
LINSPECTIONWORKSHEETFORWHEELED
ES.Thisformwillbeused forall1,000-mile
(semiannual)maintenanceservicesandall
ormedonwheeledorhalf-trackvehicles.
353,SPOT-CHECKINSPECTIONREPORT
S.Thisformmaybeused byallcommand-
epresentativesinmakingspot-checkinspec-
.468,UNSATISFACTORYEQUIPMENT
usedforreportingmanufacturing,design,
aterielwitha viewtoimprovingandcor-
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orusein recommendingmodificationsof
be usedforreportingfailures,isolated
nctionsofmaterielresultingfromfairwear
age;norforthe replacement,repair,or
pment.Itdoesnotreplacecurrentlyauthor-
mancerecords.
370,EXCHANGEPARTORUNIT
stag,properlyexecuted,maybeusedwhen
temsforlike serviceableassemblies,sub-
es,andtools.
and3).
kTransporterTruck-trailerM19
ts,the 12-ton,6x4truckM20andthe
9.Theunitis designedtorecoverandtrans-
aterielweighingupto 90,000pounds.
ruckM20is atandem-rear-axle,or
witharearpintlefor towingtheM9trailer.
nsomemodelsandopentypeon others.
hareinstalledonthechassisbehindthe
throughapowertake-offinstalledon
andiscontrolledfromoutsidethe cab
edclutchcontrolandremotethrottlecon-
isaccomplishedbymeansofthewinch.
canbeobtainedbyfillingthe ballastbody
lssuchasgravelor sand.Thesparewheel
eforwardendoftheballast body,andtwo
dinsidethebodyatthe rearend.Afueltank
fthetruckimmediatelybehindthecab.
uelgatevalvesare carriedinacompart-
e cabdoors.Thetruckispoweredbya
ippedwitha fueloilburningheaterto
rting.
wheeltrailerM9hasa tandemaxle
dualwheelsandafrontaxle whichcarries
providedfortowingthetrailer.Therear
ownandtwohingedrampsareprovidedto
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PRIMEMOVER.6X4
ND-TMODEL
ADED
EDNOMINAL
FACTURER
RE
SUMMERUSE
WINTERUSE
UENTLYAS
erisequippedwithtrackguides,cable
ves.Fourchockblocksandvariousanchor
ethetank whileitisbeing transported.
anair-brakesystemandamanualcontrol
dentlyofthetruck.Astowagecompartment
etrailer.
.
IONS.
.
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front75%in.
650Ib
ad18,350Ib
45,000Ib
n.
eteneDieselfueloil
ANDCOOLINGSYSTEMCAPACITIES.
pt
ch)20pt
)2pt
OUTTRAILERATTACHED).
e23mph
a.)right65ft
pintle,2airbrakeconnections
connections
,000Ib
gability25pet
nespeed1,600rpm
onditionswithtowedload2
IONS.
gdrawbar29ft8in.
38V2in.
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es
b
SSORIES
reforinformationonlyand mustnot
isition.Thelists includetools,equipment,
uckandtrailer.
626)
ll-peen,
wrench
0)
ithhan-
p-joint,
,heavy-
ecessed
essed
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es
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tomo-
w
escent-
)
-degree
-end,
%
-degree
-end,
/2
-degree
-end,
%6
-degree
-end,
%
0)
-degree
-end,
%
aring
00)
aringnut
6-
t(Budd
8-
ers,
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theballastbodyis 3.5cubicyards,
heelcompartment.Byfillingthe body
ngapproximately3,000poundspercubic
ofballastwill beobtained.Ifthisis not
d,it isrecommendedthatapproximately
epouredinto blockstofitthebody.
thrings forhoistinginor outofthe
on woodenskidswithwoodenwedges
creteweighsapproximately4,000pounds
kswillprovidetherecommendedweight
e providingdrainageofthebodyand
tionofairtopreventexcessiverustand
SANDCONTROLSINVEHICLE
t.Beforeaneworreconditioned
,besure thatthenewvehiclerun-in
hs23,24,and 25,hasbeenperformed.
ce.Performtheservicesinitems1
oreattemptingtostart theengine.Start
par.cbelow),andcompletetheBefore-
NNEUTRALPOSITION.Applyparking
onarybypullingbackon parkingbrake
ssionandauxiliarytransmissionshift
n (fig.11).Makecertainpowertake-off
sition.
WITCHON(S,fig.8).Turnkeyclock-
Switchisomittedon somevehicles,in
eomitted.
AL.Pushclutchpedaltofloorand
ginehasstarted.
TORSWITCHBUTTON(M,fig.7).Press
ton;releaseimmediatelywhenengine
startaftertwoorthree trials,release
tonandinvestigate.
TS(fig.8).Afterenginehasstarted,
Operatehandthrottleuntilengineidling
erminute.Readthe gagesandinstruments.
register 30pounds.Ifit failstoregister,
elyandinvestigate.Theairpressuregage
abovebeforevehicleismoved.Abuzzing
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yConditions
OF
PPOSITE
GHT.
K
ructionPlate
ufficientairpressureforbrakeoperation,
ngpressureabove45poundsisreached.
vehicleisbeingoperated,stopvehicle
necauseoflossofpressure.Theammeter
hebattery"B"ammetermustreadpositive
uldreadabout500revolutionsperminute.
geshouldshowagradualrise to160 to
euntiltemperatureis135 F.Oilviscosity
AL."Ifengineviscometerremainsinlow
engineandinvestigate.Thefuellevel
entered,shouldreadempty.Thefuel
approximately10pounds.
n.Aftertheenginehas beenthor-
eckedforsatisfactoryoperation,placethe
s:
CH.Pushclutchpedaltothetoeboard
heclutch.CAUTION:Disengagetheclutch
shiftingdifficulties.
ANSMISSIONSPEED.Shifttheauxiliary
rintoproperposition.Theselectionis based
ountofloadbeing hauled.Shiftinto
aded,climbingagrade,or where
to "DIRECT"or"OVERDRIVE"
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evelandtheloadis light.Truckcannot
nsmissionin"N"(neutral).
ISSIONSPEED.Shiftmaintransmission
speedposition(fig.11).
GBRAKE.Releaseparkingbrake
er forward.
ANDRELEASECLUTCH.Pushdownon
ospeedup theengine,andatthesame time
)gradually.CAUTION:Donotengage
ficientfueltotheenginetoinsure asmooth,
engine.
TOOTHERSPEEDS.Aftervehiclehas
dbyshiftingthe maintransmissionshifting
ownon theshiftingdiagram(fig.11).
ed,releasetheacceleratorpedal,disengage
ansmissionshiftingleverintoneutral and
position.Releasetheclutchpedalsmoothly
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yConditions
eleratetheengine.Repeatthisforeach
ssionuntil itisin drivinggear.CAUTION:
roper gearspeedisdeterminedbythe
ewhichmustoperatesmoothlywithout
dbedroppeda stepbyshiftingtoa lower
insto losespeedbylaboring.When
uble-clutch(step(7) below)toavoid
ON:Neverforcetransmissionshifting
tolowergearsathigh enginespeeds.
samegearthatwouldbe requiredin
ouldneverexceedthemaximumshown
sat1,600Revolutions
TINGTOLOWERGEAR.
eleaseacceleratorpedal.
tingleverintoneutralposition.
ndaccelerateenginetosynchronize
againandshiftinto lowergear.
ywhileacceleratingtheengine.
GEAR.Whenitisnecessarytoreverse
iftthe transmissionintoreversegearposi-
ate (fig.11).
GearShifting.
ytransmissionshiftingleverhasthree
"DIRECT,"and"OVERDRIVE,"inaddi-
). Itisgoodpracticeto operatethe
ctrangeoverhard-surfacedterrainwhere
remegradesor whentheconditionsare
oodtraction,thelowrangeshouldbe
vilyloaded.NOTE:Donotshiftthe
mhightolowspeedunless thevehicle
ngatlowspeed.
HERSPEEDS.
anyspeed,or standingstill,dis-
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yConditiont
lerdrawbaratapproximateheight
dmanstandneardrawbarto givesignals
truckuntildrawbarring canbeplaced
elatchand insertlatchcotterpin.
ingsfromtherearairbrakecouplings
airlinesonthe trailer.Connecttheemer-
ertothe servicecouplingonthetruck.
ingonthetrailerto theemergencycoupling
les oftherearcut-outcocksonthe
einthetrailerjumpersocketslocated
dfrontofthe trailer.
rin Motion.
RKINGBRAKES.Releasetrailerparking
heels.
ruckinmotion,asoutlinedinsub-
starttruckmovingslowlyto avoidjerking
gthof theunitmustbekept inmindas
ht,whetherthetraileris loadedornot.
pttobackthe trailerandtruckin
thetrailerbybackingthe truck.The
astraightlinefor shortdistancesonly.
ytospotthetrailer bybackingit,isby
pintlehooktothe trailerdrawbareye
ardandthe trailerbackward.Thetruck
ontrolofthe steeringangleofthetrailer
hthepositionof thetrailer.
ler.
RMALCONDITIONS.Removefootfrom
railerairbrakesfirst,bygentlyoperating
ofsteeringcolumn.CAUTION:Never
uckbrakes.Almostimmediately,depress
brakeson thetruckandtrailersimultane-
henthevehiclespeedhasbeenreducedto
dmovetransmissionshiftinglever into
mpletelystopped,releaseclutchpedal,
ver,andreleasebrakepedal.Apply
Donot dependonairbrakesforparking.
CONTROLVALVE.Thetrailerair
controlledbythehandcontrolvalve(fig.7)
edbeforethetruck brakesareapplied.
plied,thetrailermayhaveenoughmo-
orwardintoa dangerousposition.When
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lerbrakescarefullyto actasadragon
s toskid,theapplicationofthetrailer
erearendofthe truckbackintoline.
too long,inorderto avoidskidding
Trailer.Setparkingbrakeson
gbrakelever ontruck.Turnoffthe
uckairlines. Disconnectthetrailerair
ruckandinstallthe dummycouplingson
estopreventdirt fromenteringlines.
efromthetruckandthe trailerjumper
ingcableinthe trailer.Opentherear
removingpintlehooklatchcotterpin
gagetrailerdrawbareyefrom pintle
fromtrailerwhiledrawbaris heldina
he pintlehook.
.
Ifit isimpossibletoturnthe engine
tor,itmaybe possibletostartthetruck
orcablethroughthefrontpintle hook
wingvehicle.Shiftthe auxiliarytrans-
the transmissionintodirectrangeinthe
owingtruckstarts,thedriverof thetowed
eclutchuntilstartingspeedis reached.
vingsmoothlytheclutchshouldbeengaged
Whenthe enginestarts,theclutchshould
hrottle pulledoutfarenoughto idlethe
perminute.Thedriver ofthetowedvehicle
missionto neutralandsignalthedriver
hiclesarestopped,the towchainmaybe
hicleisstartedinthis manner,reportit
UTION:Thedriverofthe towedvehicle
he airpressuregagebeforehisvehicle
undspressureisindicated,theair brakes
conditionof theparkingbrake;ifsatis-
estoppedwiththisdevice.
e.Ifthevehicleisdisabled withno
ror thesteeringgearapparatus,itmay
nnerasdescribedfortowingtostartthe
Besurethevehicleto betowedhas
operativeor therunninggearisdamaged,
awrecker.Liftdamagedendofvehicle
dtowwithoppositeend carriedonits
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ipment
YEQUIPMENT
smountedontopof theframeside
rivenfroma powertake-off,mountedon
,throughapropellershaftandchaindrive.
anism,installedontherearendofthedrive
cablepullbyautomaticallyshuttingoffthe
ofthefuelshut-offsolenoid.Thecontrols
elocatedoutsidethe cabontheleftend
EVER.Thewinchjawclutchlever
extremeleftsideofthe winch.Itmoves
shaft inoroutof engagementwiththe
e jawclutchisdisengaged,thedrumis
aft;whenengaged,thedrumis locked
osition.Whenthe leverispushedforward,
ed.
Theclutchhandleverispartof a
tedonabracketontheleft endofthe
ationoftheclutchair cylindertoengage
utchindependentlyoftheclutchpedalin
g.J2).Thethrottlecontrolis
heleft endofthewinch,betweentheclutch
isdirectlyconnectedtotheaccelerator
everon thegovernortoincreaseorde-
noperatingthewinch.
VER(fig.12).Thedragbrakehand
endofthewinch,nextto thejawclutch
edragbrakeagainst thewinchdrumto
nningwhenthecable ispayingout.Itis
shedforward.
ABLE.Engagethejawclutchbyshift-
k(fig.12). Starttheengine.Releasethe
smissionleverinreversegear(R) andthe
erinneutral(N)position.Shift thepower
dinto"ENGAGED"position(fig.11).
ertake-off,itisfrequentlynecessarytoen-
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s
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ipment
htlytocauseshaft rotationtopermiteasy
engineclutchmomentarilytoeaseoffthe
.Releasetheclutch.Placethepowertake-
itionbypulling itback(fig.11).Place
.Unhookthecablefromthe frontpintle,
,orfrom thereartowingcablesheave
therear.Disengagethewinchjawclutch
verforward.
ghcabletoreachthe objecttobe
for pulling(par.16b).Disengage
theengine.Applytheservicebrakesand
gagingthepedal hold-downlatch(fig.7).
.Releasetheengineclutch.Placethemain
propergear (step(5)below).Makesure
sinneutral.Shift thepowertake-offshift
GED"position(fig.11).Usingthere-
ever,ortheclutchpedalin thecab,re-
gagethejawclutchbypulling backthe
ethattheload isreadytobe moved.
carefullybymovingtheremotecontrol
utchpedalin thecab,andatthesame
rottlecontroltoacceleratetheengineto
dyto stopthewinchinstantlyifneces-
vetheremotecontrolclutchhand
hpedal,whichwilldisengagethe engine
nstantlystopthe winch.Thewinchwill
mpayingoutbythe safetybrakebandas-
der aload,providingthewinchjawclutch
verdisengagethewinchjawclutchwhile
Iffinishedwithwinch,placetransmission
)(fig. 11).Placepowertake-offshift
sition.Releasetheengineclutchatthe
elever,ifengagedatthis point.Release
,ifengaged.
UT).Ifwinchisnotunderload,the
ullingitoffthe drumwithwinchjawclutch
that jawclutchisdisengaged.Whilecable
anmustmaintainalightpressureon thedrag
hedrag brakelever,topreventthedrum
ecablewouldturn it.Ifwinchisunder
eringor payingoutisaccomplishedby
neif itisstopped.Disengagetheengine
utchpedalorby movingtheremotecontrol
onisto becontrolledfromoutsideofcab.
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reverse(R)gear (fig.11).Shiftthepower
dto"ENGAGED"position(fig.11),ifit is
sreadyto belowered.Carefullyengage
ytostop winchimmediately(step(3)
ADING.Thewinchspeedisin relation
selected.Ahightransmissionspeedgives
lowtransmissionspeedgivesalowwinch
toacceleratetheengineabove1,000revo-
ewinchis beingoperated.Toincrease
highertransmissionspeedratherthan
essively.Whenhandlingveryheavyloads,
owgear.If drivingandpulling,shiftthe
olowrange.Usethewinchwiththe trans-
mediumloadsonly, andinhighgearfor
gspeedof thewinch,withtransmissionin
ngat 1,000revolutionsperminute,is55feet
yerofcable.Iftheline pullonthecable
twillcausethetorqueon thewinchpro-
orquecontrolspring setting.Thetwoparts
parateunder theseconditions,and
ckerarm,torque controlswitchbox,and
heenginewillbestopped.Tostart theengine
neclutchtoreleasethetorqueon thedrive
e.CAUTION:Donotset thetorquecon-
capacitythanthatrecommended.
THOUTLOAD.Engagethewinchjaw
nt,bymovingthewinchjawclutchlever
easetheengineclutch.Placemaintrans-
gear.Shiftthepowertake-offshiftlever
position(fig.11).Usingtheremotecon-
e clutchpedalinthecab,releasetheen-
backoncableorattacha slightloadso
on drum.Guidelayersofcableontodrum
oftenasnecessarytoadjustcoil ondrumso
oundsuccessivelayerswillbeobtained.
bleremain,stopthewinch,placetheend of
lehookifitis ledtothefrontof thetruck,
heavebracketifattherear.Slowlyengage
underaslighttensionand securedatthe
utch.Placethepowertake-offshiftlever
(fig.11).Placethetransmissionshift
winchjawclutchto remainengaged.
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ipment
DUNLOADING.
s.Placethetrailerandtruckon
eto besalvagedinlinewiththe rearend
hetruckmustbesufficientlyballastedto
r.12).
winchcable(par.15 c(1)),and
achthe salvagedvehicle(par.15c(4)).
tchblocksprovidedwiththeequipment
theloadonthecableand equipment.For
ineorone-partline.Formediumloads
ine.Forheavyloadsuse thefour-partline.
cks,attachthefrontsnatchblockto the
othersnatchblocktothesalvagedvehicle.
etweenthetwotrailersheaves(fig.177)
in astraightlineto thesalvagedvehicle.
soffthe roadorina positionwhereitcan-
ckofthetrailer, arecoveryoperationwill
ng thevehicleuptotheposition forloading.
eaccomplishedbyusingthecablefromthe
hefrontofthe truck.Tousethecableat
offthecableandleadit forwardthrough
eft-handframerailto thefrontbumper
rontbumperrollerpinandlift itoutof
ecablebetweenthehorizontalrollers, and
er pin.
olddowntheloadingrampsat the
etherearchockblocksfromthe trailer
ehindtherearwheelsof thertuck.Setthe
r.Rigthe winchcable(subpar.babove),
vehicletobesalvaged.Onlargevehicles,
erthevehicleand attachthesnatchblock
cle(orthe endwhichwillbeatthe rearof
d).Ifthesnatchblockis attachedatthe
ehicle,it willbedrawnupcloseto the
eventingthesalvagedvehiclefrombeing
trailer.Ifthesalvagedvehiclecanbe
ethevehicleto steerit.Whentheprepara-
hesalvagedvehicleontothetrailer (par.
whenthevehicleiscenteredonthetrailer.
acetherearchockblocksbehindthe
retheminasimilar manner.Attachthe
rriedinthetrailercompartmenttothe
sesofthe loadedvehicle,andtotherings
the chainstightbyturningtheturn-
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brakesontruckandtrailer. Lower
theground.Ifpossible,usea second
dvehicleoffthetrailer, andusethewinch
kthe speedofthesalvagedvehicle,op-
e(lowering).Ifsecondvehicleis notavail-
undervehicleandcarryit outtoasnatch
out50 feettotherearof thetrailer.Pass
chblockandlead itbacktotherear end
tachittothe salvagedvehicle.Remove
sandrearchockblockswhichsecurethe
vehicleoffthetrailerby operatingthe
hefireextinguisheris mountedin
sattachedtothebackof thecabbetween
delsand tothedriver'ssideof thecab
acarbontetrachloridevaporizingextin-
extinguishingfiresresultingfrom burning
asoline,liquids,orfromshortcircuits.It
rningelectricalequipmentsuchasthe
,wiring,andotherinstallations.
reextinguisher,releasehandleby
ndproceedtopumpthe extinguisherfluid
ase oftheflames.Whenusingtheex-
dsin acontainer,directthefluidagainst
rjustabovetheburningliquid.
SUALCONDITIONS
RATION.
utomotiveequipmentatsubzerotem-
msthatdemandspecialprecautionsand
mbothoperatingandmaintenanceperson-
ndtotalfunctionalfailureareto beavoided.
Diesel enginesoperatedinwarm,
atcongealattemperaturesbelow0F.
derU.S.ArmySpecification2-102,gradeX,
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Conditions
at lowtemperatures,asitwillnotpre-
mperatures.
ssitatesprocurementofcommercial
etakentosee thatthecloudpointis 10F
ospherictemperatureanticipated.Other-
totheinjectorsinquantitiessufficientfor
tion.
lformicethatmaystop fuelflow
ons,suchassteps(2), (3),(4),(5),and
stbetaken.
FuelOil.
nersarethoroughlycleanandfreefrom
them.
ormovingacontainer,allowthefuel
llingvehicletankfromit.
ntainerstighttopreventsnow,ice,
terfromentering.
omdispensingequipmentandfrom
oreremovingcapto refuelvehicle.After
curely.
denaturedalcoholtothe fueltankat
Vapint ateachrefueling.Thiswillreduce
in thefuel.
anytypeofstrainerthatwill prevent
eFluid.Severalmethodsforkeep-
tlyfluidforproperlubricationarelisted be-
giventothedifferentmethodsin theorder
ilitiesavailable.
Keepthevehicleina heatedinclosure
ted.
SE.Whentheengineisstopped,drain
stillhotandstore inawarmplaceuntil
tedagain.Ifwarmstorageisnotavailable,
ng.NOTE:Donot gettheoiltoo hot;
erethebarehandcanbe insertedwithout
a conspicuousplaceinthecabtowarn
aseisempty.
SEOIL.Crankcaseoilsmaybediluted
oil accordingtotheiravailability,with
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ne.Oneofthetwofollowingprocedureswill
ginewithproperlydilutedengineoilfor
uent.Fillenginecrankcasetothe
eofengineoilprescribedfor useattem-
F(par.22).Add 7%quartsofgasoline.
nutestomixthel ubricantanddiluentthor-
dnotethat thelevelofthediluted oilis
markontheoilgage.This levelshould
futurereference.Thepresenceofalarge
willincreaseoilconsumptionand,forthat
be checkedfrequently.Usethegradeof
ebetween+32Fto0F tomaintainthe
"FULL"markonthegageduringoperation.
hoursormoreatoperatingtemperature,
ryifit isanticipatedthatthevehiclewillbe
for5hoursor more.Thiscanbeaccom-
lprescribedfor usebetween+32Fto0F
LL"mark,thenaddinggasolinetothe
escribedin substep(1)above.
saDiluent.If Dieselfuelisusedas
asewhiletheengineis stillwarmandrefill,
fortemperaturesbetween+32Fto0F
fuel oilinthe proportionof73Aquarts
eofa largepercentageofdiluentwillin-
d,therefore,checktheoillevelfrequently
tainitto manufacturer's"FULL"mark
utedwithDieselfueloil asdescribedabove.
eloilisusedas adiluent,thequantity
rtingis addedwhenthecrankcaseisrefilled
itionofdiluted made-upoil.Furtheraddi-
ernightshut-downareunnecessary.
eptoutdoors,andif thecrankcase
theenginecompartmentwithatarpaulin.
eis tobestarted,placefirepots underthe
us-type,orothertypeblowtorchorordi-
aybeused.Withdue considerationforthe
amemaybeapplieddirectlyto theoilpan.
Cases,andDifferentials.
escribedforuseat temperaturesfrom
arytransmissioncontrol.Usethesame
below0F.
bricant,whereprescribed,is suitable
ow as 20F.Ifconsistenttemperature
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Conditions
rainthegearcaseswhile warmandrefill
arlubricantwhichis suitableforoperation
+32Fwithoutdilution.
armedup asprovidedinparagraph
ow(first)gear,anddrivevehiclefor 100
stall engine.Thiswillheatgearlubricants
operationcanbe expected.
.Lubricatewheelbearingsand
neralpurpose greasewiththesamelubricant
mustbeperformedatsufficientlylowtem-
ndpackingcannotbeaccomplished,No.0
aybeuseduntil temperaturereturnsto
herplaceswhereNo.0generalpurpose
0Fwiththesame greasebelow0F.When
sareencounteredandNo.0generalpur-
torywherespecifiedabove,No.00O.D.
mentSpecificationAXS-1169),may
arhousingif possible,orusesuctiongun
ntaspossible.Refillwith grade75uni-
ilcanpointswhereengineoil isprescribed
preservativelubricatingoil.
aturesbelow+32F,useantifreeze
oolingsystemagainstfreezing.
zecompound,drainoffthewaterand
ecoolingsystem,includingtheaircom-
tbecleanandcompletelyfreeofrust (par.
mhasbeencleanedrecently,itmaybe
fillwithcleanwater,and againdrain.
eplaceifdeteriorated.Inspectand
oseclamps,plugs,andpetcocks.Seethat
f foundtobeleaking,installnewradiator
ompound.Inspectforcoolantleakageat
bytighteningcylinderheadstudsor re-
t.
hat itclosescompletely(par.92).
nginopenor closedposition.Ifthermostat
pletely,doesnotfunctionfreely,or isbadly
mis cleanandtight,fillwithwaterto
or5gallons.Thenaddantifreezecompound,
freezecompoundtothecoolingsystem
Thesystemshouldbeprotectedtoatleast
ectedtemperaturetobeexperiencedduring
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und
aturecYpacity* NOTE*
compound,fillwithwater,thenstart
loperatingtemperature(par.13c).
solutionwitha hydrometer,adding
quired.
oolantweeklyforstrengthand color.
ained,thecoolingsystemthoroughly
oftherequiredstrengthadded.CAUTION:
eonlyantifreezeforordnancemateriel.
ezesolutionsbekeptclean.Useonlycon-
ree fromdirt,rust,andoil. Useanaccurate
meter,use1partantifreezecompoundto
should produceahydrometerreading
ystems.
ANKINGMOTOR.Checkbrushesforwear
dsee thatbrushesandcommutatorare
brushesorcommutatorwillaffectoperation
eventthe electricalcontactrequiredfor
n thecrankingmotorrequiredforgood
andtightenallconnections,especially
eshouldbetakento seethatnoshort
encyofbatteriesdecreasessharply
uresandbecomespracticallynilat40F.
chilledto atemperaturebelow30F,
tedbeforeattemptinganengine start,un-
s available.Seethatthebatteryisalways
rometerreadingbetween1.275and1.300.
notfreeze attemperatureslikelytobe
cclimates,butafullydischargedbattery
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Conditions
+5 F.Donotaddwater toabatterywhen
bzerotemperaturesunlessthebatteryisto
fwaterisaddedandthe batteryisnotput
erwill stayatthetop andfreezebefore
htheacid.
e.
Thegagemayfailtoregister pressure
etube.Wherethisconditionisexperienced,
for subzerooperation.Disconnectthegage
eoppositeendwhilethe oilishot,and see
thelowerendof thetubewithspecial
thegagetube withgrade3denatured
Washthethrow-outmechanismandgear
emovegreaseanddirt.Heavygreaseor
m beingmeshed,orcausethemtoremain
tartsrunning.Thelatterwillruin the
sitaterepairs.
headventof coldweather,inspect
equired.
eltanksump,anddrain andclean
y,ormoreoftenaccordingtoexperience,
n anextremeemergency,whenusing
mentsmayberemovedtemporarilyfrom
xperiencedwithwaxcloggingthescreens
el throughthefilters.
peraturesbelow0F,useSAE10en-
typeandoil-bathtypeair cleanersand
atendencytocausebrakesto stickor
kedatsubzerotemperatures.Usea blow-
ts iftheybindwhenattemptingto move
hiclewiththebrakereleasedwill eliminate
utionmustbetakenunder thesecircum-
sorotherwisepreventmovementofthe
efrequently.Shockresistanceofmetals,
king,isgreatlyreducedatextremelylow
ofvehiclesonhard,frozengroundcauses
result inscrewsbreakingornutsjarring
catedspeedometercablesatthedrive end
ttemperaturesconsistentlybelow20F.
orkproperlyat thesetemperaturesand
eexcessivedragcausedbythe highviscosity
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arelubricated.Grease-lubricatedcables
rilyatalltemperaturesprovidingtheyare
purposegreaseand thereisnoexcessgrease
melowtemperaturesareencounteredand
seis notsatisfactory,No.00O.D.grease,
ntativeSpecificationAXS-1169,maybe
ingby followingproceduregivenin
withcircuitlockswitch,turnkeyof
ngmotorswitchandatsametimeoperate
ngerlocatedonthe instrumentpanel.
dprimingpumpunlesscrankingmotoris
dresultinunburnedfuelbeing pumpedinto
orswitchafter30seconds,ifenginehas
ngmotortocool forseveralminutesbefore
ontinuesto run,regulatethrottleto
onsper minute.
par.13c(5)).
rand operateatlowspeedto
enavoidable.
HOTANDDUSTYCONDITIONS.
Whenoperatingin dustyterrain,
stcatchingdevicesonthe vehicleisessen-
emfromclogging.Failuretokeepthevarious
dscreensinacleanconditionwill resultin
parts.Excessgreaseandoilaroundlubri-
pedoffto preventgritanddirt frombeing
shings.
ns.Whenpartsareremovedforin-
aprecautionsmustbetakentoremoveall
art.The enginefuelnozzlesoranypart
ldneverbe exposedtodirtwhiletheyare
estamountofgritis apttodamagethemand
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Conditions
zones,checkcellwaterleveldaily
withpuredistilled water.Ifthisisnot
rinkmaybe used.However,continuous
neralcontentwilleventuallycausedamage
usedonlyinanemergency.
tteriesoperatingintorridclimates
trolytethanfortemperateclimates.Instead
olyteshouldbeadjustedto around1.210
dbattery.Thiswillprolongthelife ofthe
ators.Underthisconditionthebatteries
out1.160.
atterywillself-dischargeatagreater
fstandingfor longperiods.Thismustbe
henoperatingintorridzones.If necessary
movebatteriesandstore inacoolplace.
.
clehasbeendriventhroughdeep
rtandabrasives,or completelysub-
recautionsmustbetakentoavoidserious
e engine,clutch,transmissions,axles,uni-
nggear,battery,fueltank,brakes,and
ownthatwater,dirt,andabrasiveshave
unitsofthevehicle,notifytheproperauthor-
hhas beensubmergedmustbecompletely
ubricated.
URE.Inanemergency,eachunitshould
dlubricatedtopreventasmuchdamageas
.Lubricatethetruckandtrailer
ovefilterplugsfromstoragebattery.Check
pearance.Normallevelafterimmersion
waterhasenteredbattery.Cleanelectrolyte
htlyhigh,indicatesnoabsorptionofexcess
aterial.Ifsolution isdirty,replacebattery.
)).Ifthebatteryis discharged,recharge
sonengine (par.72b).Cleanandreoil
ebreather(par.22).Removeallwheel
57),clean,repackwithlubricant,andre-
sonwheelhubs(pars.185 and257)if
thdirt,toavoiddamagetoseal surfacesand
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ethecrankingmotor,generator,andgen-
97,114,and 115).Drainlubricantfrom
nsmission,andwinch.Refillgearcases,
ndhalfSAE10engineoil forflushingoil.
withsameflushingoil.Next,withrear
wheelsfor5 minutes.Runthewinch.
ndrefill withcorrectgradeoflubricant
and fillcrankcasewith10quartsof
tsofSAE10engineoil, andrunenginefor
peedwithclutchreleased.Replaceoilfil-
eand fillwithcorrectgradeofoil
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ONS
ofWarDepartmentLubrication
14)andLubricationOrderNo.724
secondechelonlubricationmaintenance
onOrderisplacedonoris issued
andis tobecarriedwithit atalltimes.
sreceivedwithoutacopy,theusingarm
onareplacementfromtheCommanding
anceDepot,Detroit32,Michigan.
onsontheLubricationOrdersare
maintenanceandthereshall benodeviation.
alsspecifiedontheLubrication
atingconditionsduringactiveserviceabove
lsunderextremeconditionssuchasexces-
tures,prolongedperiodsofhigh speed,con-
dust,immersioninwater,orexposureto
hmayquicklydestroytheprotectivequali-
equireservicinginordertopreventmalfunc-
ateriel.
ntsareprescribedinthe"Key"in
mperatureranges;above+32F,+32Fto
meto changegradesoflubricantsisde-
closecheckonoperationofthe materiel
nge-overperiods.Sluggishstartingisan in-
ethickeningandthesignalto changeto
extlowertemperaturerange.Ordinarily
ngegradesoflubricantsonlywhenairtem-
yinthenexthigheror lowerrange.
ONINSTRUCTIONS.
Eachpieceofmaterielissupplied
tadequatetomaintainthemateriel.Besure
thbeforeandafter use.Operatelubricating
manneras toinsureaproperdistribution
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oogle
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I
der
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ssisPoints
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der
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der
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TACHOMETERDRIVE
21467
bricationViews
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AFT)
GLEVERS)
AKE
HAFT)
bricationViews
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BRAKE)
AKEAPPLICATIONVALVE
bricationViews
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bricationViews
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ANER
CLUTCHRELEASEBEARING
bricationViews
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AFTREAR
AFTBODY
ABLEROLLER
AFT(CHASSIS)
bricationViews
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LUTCHCYLINDER)WHEELBEARINGS
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hSAE90universalgearlubricantabove
Fto0F;or grade75below0F.
00miles,removedrainplugfrom
t.Every6,000mileswhilecrankcaseisbe-
element,cleaninsideofcase,andinstall
RBUSHINGS.Every1,000miles,apply
querodbushings.Do notuseoil.
DSLIPJOINTS.Usegeneralpurpose
turesabove+32F,orgeneralpurpose
F.Applygreasetouniversaljointuntil it
e,andto theslipjointuntil lubricantis
universaljointendofthespline.
ery6months,removebearingconeas-
85and257). Washbearings,cones,spindle,
thoroughly.Donotusecompressedair.In-
placeifdamaged.Coatthespindleand inside
eneralpurposegreaseNo.2,to amaximum
oretard rust.Lubricatebearingswith
o.2,witha packer,orbyhand,kneading
he bearing.Protectthebearingsfrom
sembleandreplacewheel.Donotfillhub
thebearingissufficienttoprovidelubri-
eperiod.Anyexcessmightresult inleakage
ngsin accordancewithinstructionsin
achuse,cleanandoilwithused
gineoil above+32F;SAE10below
snotbeen used,coatoutercoils.Monthly,
,andoil.
ry1,000miles,lubricatethrottleand
ertake-offcontrollinkage,transfercaseshift
nchcontrolhandle,hinges,latches,pintle
mpressorrockerarms,winchcontrollink-
tswith SAE30engineoilabove+32F;
or specialpreservativelubricatingoil
oLUBRICATIONSERVICE.Springs,
e,injectorpumpgovernor,clutchpilotbear-
notrequirelubrication.
ODICALLYBYORDNANCEMAINTENANCE
ayear,removethecoverplatefrom
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yindry-cleaningsolvent.Fillreservoirsto
ithnewor cleanusedengineoilandre-
gasketsare ingoodconditionandthat
ionsaretight.
LTS.Seethataccessoriessuchasgen-
rcompressor,fuelpump,waterpump,fan,
urelymounted.Makesurethatfan,air
ordrivebeltsareproperlyadjustedtohave
lection(fig.64).
Examineallaccessiblewiringand
ingoodcondition,securelyconnected,and
s,includingspares,areproperlyin-
at stemsareincorrectposition,andthat
nd finger-tight.Removeobjectslodged
betweenduals,andinspecttires fordamage.
n carriers.
NUTS.Seethatallwheelmounting
utsarepresentandsecure.
ER.Examinefrontfendersand
dradiatorgrillefor loosenessanddamage.
ONS.Inspectalltowingdevicesforloose-
rontand rearpintleconnectionsoperate
y.
IN.Examinecabforloosenessordam-
d batterycompartmentdoorsoperate
yinclosedposition,andthat tarpaulinor
ndnotdamaged.Examinecabseats,body,
e,andallbodyattachmentstoseeiftheyare
ectlyandsecurelyassembledandmounted.
htoseeif itisin goodcondition,
secure.Testoperationofwinchcontrol
echainandsprocketsarenotexcessively
dtorque controlmechanismsareproperly
a).Test winchdrumbrakeandseethat
itionand securelyandevenlywoundon
acompletelubricationofthetruck
ordingtoLubricationOrder(par.22),ex-
arings,andotherunitslubricatedor serviced
gearcaseoillevels andaddasnecessary
angeonlyif conditionofoilindicatesthe
notofpropergradeforexisting atmospheric
ormitems(16to19)duringlubrication.
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NSIONS.Inspectfrontsprings,rear
uerods,rearspringbearings andspring
ngoodcondition,correctlyassembled,and
re present,andoilsealsarenot leaking
Seethatsteeringarm,tierod, andall
onditionandsecure,andthatgearcase is
leakingexcessively.
NDVENTS.Inspectallpropeller
tosee iftheyarein goodcondition,cor-
yalined,secure,andnotleakingexcessively
ventpassagesarenotclogged.
SIONVENTS.Seethatallventsare
ogged.
merwhenperformingitem20,tosee
hatit doesnotleak,andthatit issecurely
artengine,notingifcrankingmotor
fanytendencytowarddifficultstartingis
orun engineatfastidle(500 rpm)during
tingprecautions(par.13c).
elpressuregageshould indicatefuel
mphead,approximately10poundswiththe
mumoperatingpressureisfrom
ssureindicator(buzzer) shouldsound
.Vehicleshouldnotbemoveduntil gage
dspressure.
eershouldindicateenginerevolutions
xceed1,600revolutionsperminute.
velgageshould indicateamountof
ectorswitchis operated.
ammetermayshowhighchargefor
ntil generatorrestorestothebatteriesthe
dthen showaslightpositive( +)reading
sturnedoff.
Ammetershouldindicatewhetheror
charged.
neoil pressuregageshouldindicate
00revolutionsper minuteand38to40
evolutionsperminutewithengine atnormal
mperaturegageshouldindicatetem-
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vevehicleuntilenginetemperature
OOT).Testfootbrakestoseeif they
withoutsidepull,chatter,orsquealing.Be
seswhenpedalpressureisreleased,that
dropinairpressurewhenbrakesare applied,
learanceis%einch.Parkingbrakesshould
nclinewithone-thirdratchettravel in
ecurelyinappliedposition.CAUTION:
rakesuntilshoeshavebecomeseated.Do
eexceptfor anemergencystop.
tchoperatessmoothlywithoutgrab,
gement,orslippagewhenengagedunder
travelshouldbe 1Viinches,andneverless
resistance.CAUTION:Donotrideclutch
notengageanddisengagenewclutchse-
tildrivenanddrivingdisks havebecome
POWERTAKE-OFF.Gearshiftmecha-
yandsmoothly;gearsshouldoperatewith-
ip outofmeshwhenengagedunderload.
eeringactionforloosenessorbinding,
lltoone side,wander,shimmy,orwheel
acketandwheelaresecure.
rtforanyabnormalengineoperating
noise,suchaslackofpullingpoweror
isfiring,stalling,overheating,or.excessive
fenginerespondsproperlytoallcontrols.
onthealertthroughoutroadtest for
dyandattachments,runninggear,suspen-
indicatelooseness,damage,wear,inade-
rinflatedtires.
EINTERVALSFORSERVICES(10)TO
EAKS.Withtheairpressureat gov-
dsandbrakesapplied,stopengine.There
edropinpressurein1 minute.
utiouslyhand-feeleachbrakedrum
altemperatures.Examinetransmissions,
xlehousingsforindicationsofoverheating
ksatseals,gaskets,orvents.
nning,andfuel,engineoil, andcool-
e,lookwithinenginecompartmentand
nofleaks.
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Reports.
atvehicleoperator'smanual,Lubrica-
No.26(Driver'sReport-Accident,Motor
A.G.O.FormNo.478(MWOandMajor
entRecord),areinthe vehicle,legible,and
.S.A.registrationnumberandvehicle
edinonFormNo. 478,fornewvehicles.
etionoftherun-intest,correctorre-
d.Reportgeneralconditionofthevehicle
authority.
VEMAINTENANCE
ficiency,itisnecessarythatthevehicle
edatintervalseachdayitis operatedand
aybediscoveredandcorrectedbeforethey
failure.Certainscheduledmaintenance
atthesedesignatedintervals.Theservices
ethoseperformedbydriverorcrewbefore-
on,at-halt,andafter-operationandweekly.
enanceservicesarelistedonthe
etandPreventiveMaintenanceService
48,tocovervehiclesofalltypesand models.
ehiclesbutnotlisted onW.D.,FormNo.48,
ceduresundertheitemsto whichtheyare
dontheform thatdonotpertainto the
natedfromtheproceduresaswritteninto
ationmustthoroughlyschooleachdriverin
nceproceduressetforthinmanuals,whether
ificallyonW.D.,FormNo.48.
D.,FormNo.48thatapplytothis
smanualto providespecificproceduresfor
ectionsandservices.Theseservicesare
ectionandconservethetimeofthe driver,
he samenumericalorderasshownon
mnumbers,however,areidenticalwith
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aintenanceService
ofeachitemappliesalso toany
nectionandgenerallyincludesachecktosee
odcondition,correctlyassembled,secure,
dcondition"isusuallyan external
minewhethertheunitis damagedbeyond
Theterm"goodcondition"isexplained
otbentor twisted,notchafedorburned,
bareor frayed,notdentedorcollapsed,
orated.
toseethatit is"correctlyassembled"
linspectionto seewhetheritisin its
ninthevehicle.
todetermineifitis "secure"is
examination,awrench,hand-feel,ora
ss.Suchaninspectionshouldincludeany
cknuts,lockingwires,orcotterpinsused
beunderstoodtomeanworn,close-to,
tsandlikelytoresult inafailureif not
cheduledinspection.
ctoryoperatingcharacteristicsbeyond
o correctmustbereportedattheearliest
tedindividualinauthority.
ERVICE.
eisdesignedprimarilyasa checkto
t beendamaged,tamperedwith,orsabo-
ationServicewasperformed.Variouscom-
enderedthevehicleunsafeforoperation
ver todeterminewhetherornotthe
rryout anymissiontowhichitis assigned.
entirelyomitted,eveninextremetactical
erationServiceconsistsofinspecting
ngtotheproceduredescribedandcorrect-
ncies.Uponcompletionoftheservice,
promptlytothe designatedindividualin
DDAMAGE.Lookforanyinjuryto
accessoriesandspecialequipment,caused
Collision,fallingdebris,orshell firesince
enginecompartmentforevidenceofthese
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damagedfuel,oil,coolant,or airlines,or
age.
SHER.Besurefireextinguisheris full,
gssecure.Removefillerplugtocheck
R.Checksupplyoffuel,oil,andcool-
ng toproperlevels.NOTE:Anyappre-
After-operationServiceshouldbeinvesti-
edorreported.Duringfreezingweather,when
,if anyappreciableadditionofwateris
aluetestedandaddedto,ifnecessary.Be
ter cansarefullandsecurelymounted.
ANDDRIVES.Examineunitssuchas
or,generatorandregulator,crankingmotor,
terpump,andaircleanersforlooseness,
drivebeltsare ingoodconditionandare
mately1-inchfinger-pressuredeflection.
KS.Examinetruckandtrailer,air
ndconnectionsforlooseness,damageor
servoirsandclosedraincocks.Besure
sare securelyconnected,orifnotinuse,
erlysupported,anddummycouplings
AL.Lookongroundundervehiclefor
,orgearoil leaks.Traceanyleakstotheir
rtthem.
UP.Startengine,notinganytendency
bserveactionofcrankingmotor,partic-
rankingspeedandengagesanddisengages
eninoperation.Setthe handthrottleso
00rpm),and,duringwarm-up,proceed
rationservices.NOTE://oilpressure isnot
pengineand investigate.
startingengine,if primerisused,ob-
ris satisfactory,andseethatthelinesare
eumaticswitchmakescontact.
elpressuregageshould registerap-
essurewhileengineisrunningat fastidle
ngenginewarm-upwithengine
ewhetheror nottheairbrakepressure
o105poundspressure,andif governor
pressingaction.Bleedtheairpressuredown
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FLANGENUTS.Inspectalltruckand
untingandaxleflange nutstoseethatthey
e alltruckandtrailertires, in-
yinflated.Trucktiresshouldbeinflated
ol),andtrailer tiresto100poundspres-
tslodgedintreads,carcasses,orbetween
age.
WALKINGBEAMSANDSUSPENSIONS.
railerwalkingbeamsforloosenessor
pringsforexcessivesagandbrokenor
seethatspring reboundclipsarepresent
walkingbeammainsprings,recoilsprings,
emblies,andairbrakecylindercarriers,
cureandnotdamaged.
NKAGE.Inspecttrucksteeringgear
eyareinconditionforsafe operation.Pay
eringarmforcracks,andseethat steering
cessively.Seethatsteeringcolumnbracket
DBUMPER.Inspecttruckfrontfenders
anddamage.
NNECTIONS.Inspecttruckfrontand
tractionsprings,pintlelockingdevices,
eye,andall towingairandelectrical
eyarein goodcondition,properlyas-
ounted.
D,WINCH,ANDTARPAULINS.Inspect
enessanddamage.Seethat doorsoperate
yinclosedposition.Seethat anyload
erlydistributed,andthat tarpaulinor
onditionandproperlystowedor attached.
-orlooseattachmentsandifloaded,be
ition,properlyblocked,andsecure.Ex-
ndattachmentsforloosenessanddamage.
eandair controlclutchleverarein
mbrakeinappliedposition,andcable
NATOR.Makesurecontaminator.is
ymounted.
EQUIPMENT.Besureallitemsof both
etoolsandstandardandspecialequipment
andproperlystowedormounted.
RATION.Beforetruckisputin mo-
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aintenanceService
eachedminimumoperatingtemperatureand
eanddeceleratetheengine,andlistenfor
oise.Noteanyunsatisfactoryoperating
veexhaustsmoke.
RMITANDFORMNo.26.Drivermust
tonhisperson.Checkto seethatStandard
26,MWOMajorUnit AssemblyReplace-
O.FormNo.478,vehiclemanuals,and
entinvehicle,legible,andproperlystowed.
ERVICE.
on,listenforanysoundssuchas rattles,
hatmayindicatetrouble.Lookforindica-
systemandsmokefromanypartofthe
odetectanyodorof overheatedcomponents
r,brakes,orclutch;forfuelvaporfroma
stgas,or othersignsoftrouble.Anytime
shifted,or vehicleturned,considerthisa
factoryorunusualperformance.Watchthe
oticepromptlyanyunusualinstrumentin-
ossibletroubleinsystemto whichthe
erationServicesconsistofobserving
ingtotheproceduresfollowingeachitem
cationsofserioustrouble.Noticeminor
edorreportedatearliestopportunity,usually
NDBRAKES.Withvehicleinmotion,
ppreciablespeed,testtruckandtrailer
orproperoperation.Footandhandapplied
cleeffectivelywithnormalpressureor
ooneside. Testtrailerbrakeseparately
eoperation.Handoperatedparkingbrake
sonableincline,leavingaboutone-third
rhand-operatedparkingbrakesshouldhold
shouldfullyengagein handwheelratchets
position.Besure brakesarefreewhen
dposition.CAUTION:Whenparkingon
d,alwaysusechockblocksundertires.
chshouldnotgrab,chatter,orsqueal
pwhenfullyengagedunderload.Pedalfree
hanV2inchbeforemeetingresistance.
NSANDPOWERTAKE-OFF.Mainand
dpowertake-offgearsshouldshiftsmoothly,
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oise,andnotslipout ofmeshduring
ONTROLS.Drivermustbeonthe
ineperformancesuchaslackofusual
,unusualnoiseorvibration,and indica-
essiveexhaustsmoke.Observeifengine
dif controlsareexcessivelylooseor
S.Observethereadingsofallinstru-
perationforindicationofnormalfunction-
yapply.Speedometershouldindicate
erregisteraccumulatingmileage.
AR.Noteanyindicationoflooseness
e,wandering,shimmy,andwheeltramp,or
ringgear.
R.Beonthe alertforanyunusual
ornoisefromtruckandtrailerwheels,axles
ightindicatelooseness,damage,orunder-
ERANDWINCH.Noteanynoiseorun-
dtrailer,that mightindicateshiftingof
mageddoors,hardware,orspecialequip-
ration,observeif controlsengageeffec-
sproperly,andif thereisanyindication
s,orcontrols.Noteanyunusualnoiseor
characteristicstobeinvestigatedathalt, or
regardedasminimummaintenance
performedunderalltacticalconditions,
vemaintenanceservicesmustbeslighted
vicesconsistofinvestigatinganyde-
eration,inspectingitemslistedbelowac-
followingtheitems,andcorrectingany
enciesnotcorrectedshouldbereported
dindividualinauthority.
DWATER.Checkthefuel,engineoil,
hat itisadequatetooperatethe vehicle
adiatorpressurecapcautiously.Donot
mhasescaped.Whenrefueling,usesafety
staticelectricity.Fueltankfiller-capvents
ssure-capvalvemustbefree,and capsmust
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NNECTIONS.Examinetruckpintle
swiveleyetosee thattheyareingood
mbled,andmounted.Besurethatpintle
hatairandelectricalconnectionsfrom
yconnectedandsupported,andthatdolly
D,ANDTARPAULIN.Examinethese
or loosenessanddamage.Anycargomust
dsecured.Iftrailer isloaded,seethattank
securelychocked.Tarpaulinorcamouflage
edif inuse;orif notinuse,properly
ntruckwindshieldsandmirrorsand
andwarningreflectorglass,andinspect
mage.
DWEEKLYSERVICE.
eisparticularlyimportantbecauseat
shis vehicletodetectanydeficiencies
andcorrectsthoseheispermittedto handle.
tothe designatedindividualinauthority
on.Ifthisscheduleisperformedthoroughly,
yto rollagainona moment'snotice.The
withafewexceptions,isthen necessaryonly
ehicleisin thesameconditioninwhichit
oftheAfter-operationService.TheAfter-
everbeentirelyomittedeveninextreme
ybereducedtothebare fundamental
-haltService,ifnecessary.
ormingtheAfter-operationService,
andconsideranyirregularitiesnoticeddur-
operation,During-operation,andAt-halt
tionServiceconsistsofinspectingand
ms.ThoseitemsoftheAfter-operation
yanasterisk(* )requireadditionalweekly
orwhichareindicatedinstep(b) ofeach
ATION.Testengineforsatisfactory
dle.Accelerateanddecelerateengine,and
orbackfire.Listenfor anyunusualnoise
atewornor inadequatelylubricatedparts
nyunusualexhaustsmoke.Investigateand
cienciesnotedduringoperation.
S.Checkallpertinentinstrumentsto
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aintenanceService
roperlyand continuetoregisterorindi-
eoftheunitstowhichtheyapply.Inspect
age.Stopengine.
DWATER.Fillfueltanks.(Seeif
tanks.)Checkcrankcaseoilandcoolant
rytobring tocorrectlevel.NOTE:Do
diator.Allowroomforexpansion.In
ecessarytoaddanyappreciableamountof
aluechecked,andaddsufficientquantity
ngsystemagainstfreezing.Becarefulin
orcap.Donotentirelyremoveuntilsteam
dcoolantwhileengine ishot.Fillall
ansif supplyhasb,eenused.
WINDSHIELDWIPERS.Examinehorns
elymounted.Iftacticalsituationpermits,
tionand tone.Inspectwindshieldwiper
attheyoperatethroughfullstroke,and
hieldglassfirmlyandevenly.
EARVIEWMIRRORS.Cleanalltruck
ler lamplenses,andinspectforlooseness
S)ANDREFLECTORS.Inspectall
orloosenessordamage.Iftacticalsitua-
switchesforcorrectoperationandseethat
.
ISHERS.Examineextinguishersfor
seethatnozzlesare clean.Ifextinguishers
emforrefill orreplacement.Removefiller
eterminecontents.
ATORS.Inspectforloosenessordamage
ort forrefillorexchange.
seeiftheyareclean,secure,andnot
psshouldbefinger-tight.
omtop ofbatteries.Ifterminal
orroded,cleanthemthoroughly,andapply
ghtenterminalbolts ifloose.Check
cessary,addcleanwatertobringlevel to
heseparators.Batteriesshouldbesecure
electrolyte;carriershouldbe secure,clean,
painted.Tightenloosemountingscautiously.
IESANDBELTS.
ssuchasfuelpumps,generator,gen-
motor,aircompressor,fanandshroud,and
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s,damage,orleaks.Inspectdrivebeltsfor
ent.
stanylooseconnections,linkage,or
s.Fanandaircompressorbeltsshouldhave
lectionhalfwaybetweendrivepulleys.
LWIRING.
terwiringtoseethat itissecurely
tdamaged.
essiblelowvoltagewiringandconnec-
er forloosenessordamage,andbesure
ottochafeagainstothervehicleparts.
ERSANDBREATHERCAP.Inspectengine
nersandenginebreathercap toseethat
dition,andsecurelymounted.Cleanand
yaccordingtoLubricationOrder(par.22).
RS.
nectedtoeachfueltankand fuelfilter
amage,orleaks.
mentbowlplugsanddrainoffaccumu-
iningindicatesexcessivedirt,remove
soutlinedin paragraph72b.NOTE:If
tionisevident,reportforcleaningoffuel
TROLS.Examineallenginecontrols
ear,andadequatelubrication.
railer tires,includingspares,fordam-
emoveobjectslodgedintreadsandcar-
duals.Checktiresforlowpressure,proper
dpresenceofvalvecaps.Inflateto correct
l)maximumintrucktiresand 100pounds
res.
ywornorotherwiseunserviceabletruck
letireswhichshowabnormalwearshould
ositions.Apparentmechanicaldefects
bereportedforattentionof higherechelon.
NDSUSPENSIONS.
gsandrear tandem(bogie)unitfor
ookforabnormalspringsag,shiftedleaves,
ndclips andU-bolts.Seethatreartandem
e rodsareingoodconditionand properly
demunitsare properlylubricatedandoil
minetrailerwalkingbeamsandaxle as-
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rpintlehook,trailer towbar,and
amage,andexcessivewear.Examinetrailer
that theyarenotloose,damaged,norex-
ingdevicemountingandassembly
ntlehooklockingdevicestoseethat they
springsanddrawbarsarenot damaged.
D,ANDTARPAULINS.Examinetruck
eorlooseparts.Seethat cabdoorsandbat-
perlyandlatchsecurely.Anyloadcarried
edandsecurelystowed.Tarpaulinsor
eingoodconditionandsecurelylashedor
me,platform,ramps,andchocksfordam-
Iftraileris loaded,seethattankisproperly
hocked.
yforlooseness,damage,andexcessive
sing.Besurewinchcontrolmechanism
onsproperly,andthatdrivechainis in
lylubricated,andadjustedaccordingtoin-
6.
earcaseoillevel,fillgear case,and
vechainaccordingtoLubricationOrder
e;itshould retarddrumfromspinning
hilewinchcableisunwound,inspectit
engthwiththinoil; andascablesare
y,applyacoatingofengineoil.
ler externalassemblyormounting
ectionhasindicatedthenecessity.
kandtrailer wheelmountingand
ews;springU-bolts,shackles,andrebound
erwalkingbeamand assemblymountings;
flanges;engine,transmission,andwinch
ranyothermountingor assemblynutsor
catesasnecessaryonaweekly,ormileage
TON.
e truckandtrailerindicatedonthe
ringdailyattention.
ointswhichtruckandtrailerLubri-
ecessaryonaweeklyormileagebasis,or
nandexperienceindicateneedofaddi-
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veMaintenance
GINEANDVEHICLES.
rominsideofcab,enginecompartment,
peoffexcessdirt andgreasefromexterior
dtrailerwhenpossible.If notpos-
Inspectpaintorcamouflagepatternforrust
tcausereflections.Seethat allvehicle
fortacticalreasons)arelegible.CAUTION:
venintowaterforwashing,caremustbe
dirtdoesnotgeti ntowheelbearings,gear
calunitsorwiring.
DEQUIPMENT.
stowageliststo seethatallitemsare
9).Inspectitemstoseethat theyarein
lymountedorstowed.
"andtrailertools andequipment,and
edges aresharpandproperlyprotected
urelymountedorstowed.
NTIVEMAINTENANCE
EVENTIVEMAINTENANCESER-
ntenanceinspectionsandservicesare
efunctionoftheusingarmandare there-
rsofoperatingorganizations.
uencyofthepreventivemaintenance
consideredaminimumrequirementfor
es.Underunusualoperatingconditions
tures,dustyorsandyconditions,orextremely
essarytoperformcertainmaintenance
CIPATION.Thedriversshouldac-
dassistthemechanicswhileperiodic
vemaintenanceservicesareperformed.Or-
resentthe vehicleforascheduledpre-
viceinareasonablycleancondition;that
cakedwithmudor greasetosuchan
servicingwillbeseriouslyhampered.
uldnotbewashedorwipedthoroughly
ofdefectssuchascracks,leaks,andloose
bliesaremoreevidentifthesurfacesare
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ES.Theproceduresforperformingeach
nthly)and6,000-mile(six-month)main-
chevershalloccurfirst,aredescribedin the
eofthecharthastwo columnsatits
the6,000-mileandthe1,000-milemain-
ryoftenitwillbefoundthata particular
obothscheduledmaintenances.Inorder
duretofollow,lookdownthecolumn
tenancedue,andwhereveranitemnumber
ationsindicatedoppositethenumber.
tuationdoesnotpermita
eitemswhichrequire little
icle.Whena roadtestispos-
erably4,andnotover6 miles.
on.
7.
vernorCut-off,Low
gwarm-upperiod,operate
oughtoobserveifair brake
al ratetospecifiedmaximum
ernorthencuts offairfrom
atnormalidlingspeed,bleed
yrepeatedbrakeapplica-
essorcutsinat about85
ped,continuetesttoseethat
zzer)soundsatpressurebelow
dropinair pressure,except
ouldbeinvestigatedbymak-
est(par.46k (2)).CAU-
til 70poundspressureis
gage.
es.
uelpressuregageshouldindi-
njectorpumphead,approxi-
engineoperating.
ertoitem2forspecifications
ershouldindicateenginerevo-
ularpointer.Redpointer
revolutionsattainedand
evolutionsperminute.
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veMaintenance
velgageshouldindicate
nkwhenselectorswitchis
rmayshowhighchargefor
ntil generatorrestoresto
nstarting,and thenshowa
withlights andaccessories
metershouldindicate
esarebeing charged.
ineoilpressuregageshould
reat1,600revolutionsper
ndspressureat1,200revolu-
eat normaloperatingtem-
GE.Temperaturegageshould
nginecoolant.Correctop-
0 to180F.Maximumsafe
00F.NOTE:Donotmove
nnormaloperatingrange.
shouldindicateconditionof
ase.NOTE:Donotoperate
emainsinlowrangeafter
hieldWipers.Iftactical
nsforproperoperationand
mirrorandwipersto see
onandsecure.Testopera-
ee thatwiperbladescontact
doperatethroughtheir full
floosewipermotormount-
rorsfor correctvision.
railer).Operateboth
variousspeeds duringroad
tpedalsufficientlytostop
stanceandobservetheir
oneside,unusualnoise,or
e%e-inchclearancebe-
ger.
ailerisconnected,test
yuseofhand application
ectiveness.Noteanyerratic
ndicateunevenbrakeshoe
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veMaintenance
ostallwhileshifting.Continuedheavyping
umulationofcarbon.
hetruckinanintermediate
cceleratortothetoeboard
eterreading;seethatthetruck
edthegovernedspeedspecified
rvetachometerreadingand
butdoesnotexceedthespeci-
minute.NOTE://engine
eedoncautionplate,referto
e alertduringroadtestfor
elooseor damagedattach-
ck,loosecabmountings,floor
orhardware.Listenparticu-
ewheelmountings.While
motion,haveassistantlisten
attachments,walkingbeam
sontrailer.
s.Testtruckandtrailer air
essure atgovernedmaximum.
engine stopped,thereshould
pressurewithin1minute.
sduringthis check,testsystem
hod(par.46 k(2)).
pletionofrun,feelbrakedrums
trailerforabnormallyhigh
yfeelaxles(includingtrailer)
roverheating.
ompartmentandgroundunder
el,andwaterleaks.
KSAFELY
ks.Removeplugsandinspect
andwinchgearcasetosee
evel,ingoodcondition,and
kets.Addoilasnecessary.
weredgeof fillerholewhen
cold.I fchangeoflubricant
ants,drainandrefillunits
Order(par.22).
ESSORIES.Accelerateandde-
entarily;listenforanyunusual
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veMaintenance
cordingtoLubricationOrder
ineuntilitem24is com-
and linesforgoodcon-
ndleaks.
ddrainfilterbowls.
angeisdueor condition
cordingtoLubricationOrder
core,shell,mountings,hose,
that theyareingoodcondi-
ng.Besureoverflowpipeis
mineconditionofcoolant
o contaminatedthatcool-
ed.Ifcleaningis necessary,
rrentdirectivecoveringproper
ndedcleaner,neutralizer,and
).Cleanallinsects,dirt, or
airpassagesandinspectfor
ezeis usedandanyappre-
dded,testvalue ofanti-
ry.Recordvalueofantifreeze
ksheet,FormNo.461.
nalllooseradiatormount-
oseclamps,andradionoise
ps.
oud.Inspectpumptosee
ecure,andnotleaking.Ex-
bearinglooseness.Inspect
onditionandthatbladesand
vebeltsandexaminefan
avedrivebelts looseuntil
29).
nwaterpump,fanassembly,
or,andSwitch.Inspect
r,andcrankingmotorswitch
ondition,securelymounted,
recleanandsecure.Re-
kingmotorinspectioncovers;
dbrushestoseeiftheyare
n,ifbrushesare freeinbrush
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tspringtensiontohold them
mutator,andifbrushconnec-
ot grounding.Besuregen-
sioncapacitorissecurelycon-
atorendofgeneratorand
pressedair.Ifcommutators
o.2/0 flintpaper(donot
dofwoodblock,andagain
ncrankingmotormounting
compressortoseethatitis
yalined,andsecure.Check
(0.010to0.015inch).See
ditionandsecurelymounted,
ndwaterlinesinengine
andnotleaking.
pplyafewdropsofengineoil
pin,andkeroseneordry-
valvestemofgovernor.
eclearanceat0.010inchto
aminedrivebeltsfor evi-
vewear,anddeterioration.
ubsto seeiftheyarein
elymounted.Drivebelts
1-inchfinger-pressurede-
apter.Seeiftheseitems
ectlyassembled,andsecure.
haftforkinks,and connec-
eaks.
ol.Inspectmanifoldsfor
haustleaksatgaskets.Ex-
ksorsandholesusuallyin-
.Examineheaterunit(starter
ndensertoseethat theyare
urelymountedandconnected.
leandelectrodeandground
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ubsunless thebearingsmust
newcupsshouldbe installed.
dsurfacesuponwhichthe
eingoodcondition.
e-
ringsinsamemannerasde-
justbrakeshoesasdescribed
earsto beout-of-line,
ontspringeyeboltto centerof
e. (Distanceshouldbe
-boltssecurely.
toseethatenginemount-
andtight.Besuretocheck
andall rubbermountings
notseparatingfromitsmetal
oltsareloose,tightenthem
oovertighten.Removeoil
mounting.Adjustrubber
nspectgroundstrapsfordam-
s.
awl,andlinkagefordam-
skforscoring;and liningfor
gto seewhetherornotit is
to\/-A.,inchbetweendisk
E:Besure thattheemer-
gardlessof clearancere-
holdtruckwhenparked
elinreserve.
rearhandbrakehand-
ables,andlinkagetoseethat
correctlyassembled,and
eclamps,supportguides,and
shouldhavenotlessthan
foremeetingresistance.See
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veMaintenance
nes.Inspectfueltanks,
tionstoseethattheyare in
mounted,andlinesandcon-
xaminefillercapsforde-
vents.Seethatfillernecks
hat capsfitsecurely.
nplugsand drainofftheac-
nbottomof tanks.Drain
se necessaryprecautions
ose).Examinealllines
hoseunderbothtruckand
goodconditionandsecurely
sothatlinesorhose willnot
eparts.
Examineexhaustpipetosee
oexhaustmanifold,thatgasket
isibleevidenceofleakage,
exhaustpipeisclampedse-
mufflertoseeif itisin good
ounted.Checktailpipetosee
omuffler,properlysupported,
erend.
teallpointsoftruckand
LubricationOrder(par.22)
ectives,usingonlycleanlubri-
seitemsthat havehadspecial
ice.Replacedamagedor
xiblelines,orplugs.
ND
Withfrontwheelson
adposition,useatoe-in gage
tisas specified;itshouldbe
nch.Turnwheelsfullyin
rn islimitedbystops.In
learallpartsofvehicle.
kes,ShearPin,and
rornotallofthese itemsare
yassembled,andsecure.See
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nette).Inspecttrailer
toseethat theyareingood
mbled,andsecurelymounted.
ecure.
railerairlineconnectionsto
ngoodcondition,notexces-
esecurelywithoutleaking.
r).Inspecttruckandtrailer
s,andtrailerspecialloading
oseeifthey areallpresent
odcondition,clean,and
ymounted.Alsoexamine
dgestoseethat theyaresharp.
ideoftruckor trailerwhich
faces,shouldbepaintedor
entrust,glare,orreflection.
reextinguishersarein good
ted,andfullycharged.The
dongas-typeextinguishersby
onliquid-typeby removing
zzlesarefreefromcorrosion.
oseethat decontaminators
relymounted,fullycharged,
.Inspectrefilldate ontags;
onths.
Seeiffirstaidkit isin
of itsitemsarepresentand
nydeficienciesimmediately.
26.Thevehicleandequip-
nOrder,StandardFormNo.
m)andW.D.,A.G.O.Form
truck,legible,andproperly
etirechainstobesurethey
n(ifnot inuse),notex-
againstrust,andproperly
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andSnatchBlocks).See
cesarein goodcondition,
tedagainstrustwhennotin
rnished,checktoseethat
s.Seethat theseitems
correctquantities;that they
properlystowed.
nspectfordamage,leaks,
smustbeonchains.
mpleted).Inspectthetruck
allModificationWorkOrders
enteredonW.D.,A.G.O.Form
mentofmajorunitassembly
ce.
roadtestof truckand
to15inclusive,andalso be
ission,winch,anddriving
cantisatcorrectlevelsand
adtestto theminimumtime
ctoryobservations.NOTE:
enciesfoundduringthisfinal
ubleshootinginformationandtests
determinethe causesofsomeofthe
inthevehicleused underaverageclimatic
Eachsymptomoftroublegivenunder
mis followedbyalistof possiblecauses
cessaryto determinewhichoneofthe
bleforthetrouble areexplainedaftereach
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saremissing,loosenthenuts whichconnect
injectionnozzles,oneatatime.If the
eexhaustloses itsrhythm,thisindicates
tioning.Iftheenginespeed remainsthe
ndsthesame,this indicatesthecylinderhas
entestingforamissingcylinder,the in-
r-bound,andconditionwillbecorrected
chpermitstheair orgastoescape.
PVALVES.Replaceinjectorpump
74.
USTMENT.Adjustclearance,using
graph63.
Cleanaircleaners(par.85).
FUELPUMPORLINES.Bleedfuel
haust.
ADGASKET.Replacecylinderhead
heckfueloilagainstgradeknown
ndprime system(par.77e(2)).
ZLES.Cleanfaultynozzles(par.76c).
OUTOFTIME.Checktimingasin-
DELIVERYVALVESSTUCKORBROKEN.
par.74).
Refillradiatortoproperlevel(par.
FUNCTIONING.Followprocedurein
rceoftrouble.
.Replacedefectivefan(par.90).
stfanbelt(par.90e).
tbyfollowingadjustmentprocedure
ecksourceoftroublebyproceeding
37c.
RICTED.Checkmufflerandtailpipe
ANDEXHAUSTVALVE.Notifyhigher
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BEARING.Notifyhigherauthority.
ANCETooGREAT.Adjustvalvesto
.
ORBUSHINGS.Notifyhigherauthor-
tifyhigherauthority.
ain,refill,andbleedfuelsystem
tanksandprimesystem(par.77e).
AS-BOUND.Bleedsystem(par.77e).
eplacefuelline;prime(par.77e).
M.Drain,fill,andprime fuelsystem
Replacefuelsupplypump(par.75).
RIVINGCHAIN.Checktoseeiffuel
henengineis turnedoverbyhand.Ifit
hority.
COUPLINGLOOSEOROUTOFTIME.
e(par.74c).
rSwitchFailstoOperateWhen
losed.
r corrodedconnections;cleanand
tterieswithahydrometer.Ifany
0F,replacethedefectivebattery.Ifthe
when crankingmotorswitchisclosed,
.
withacircuitlockswitch,placea
Wterminalofthe crankingmotorswitch
alof thesolenoid.Ifthesolenoidoperates
witchisdepressed,thecircuitlockswitch
fectiveandmustbereplaced.
han insulatedhandle,shorttheout-
lenoidagainsttheframe.Ifsolenoidfails
placed(par.97).Ifthesolenoiddoes op-
shorted,the switchisallright andafur-
ocatethetrouble.
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mtheSWterminalofthe cranking
terterminal(A)ofthe sameswitch.If
crankingmotorswitchisdefectiveand
.If thesolenoidfailstooperate,leavethis
notherwireacrosstheterminalsinthe am-
perates,the circuitbreakerisdefective
117).If thesolenoidstillfailsto operate,
atedterminalsandcoverwitha cleancoat
.
SolenoidOperatesWhenCranking
hwitha jumperwire.Ifcranking
efectivecrankingmotorswitchsolenoid
rdoesnot operate,proceedwithstep
ctions,shortandopencircuitsin the
hebatterywiththecrankingmotor,andin
olenoidswitchwiththecrankingmotor.
medyifnecessarythegroundcablecircuit
kingmotordoesnotrotatetheengine
ngtheprecedingsteps,replacethedefective
Notifyahigherauthorityif thetroubles
ATINGSYSTEM.
ghtingloadisconnectedtoonebat-
compartment)therewillbesomeun-
thebatteriesand thestateofcharge.The
acrosswhichthelightingloadisconnected
hantheonewhichis connectedtothe
emorewater.
ESTOVER1.250SPECIFICGRAVITY
EACHOTHER.Ifbatteryisnormal,no
ecessaryinsummer.Forcoldweather
oosterchargeifcellsareunder 1.275.
ESTUNDER1.250SPECIFICGRAVITY
EACHOTHER.
Charge.Replacebatteryasin-
sExceedsInputFromGenerator.
kelectricalsystemforshortcircuits,loose
eratoroutput.Refertohigherauthorityfor
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SOFWATERTOBATTERIESNECESSARY.
cesBatteriesinSameCompartment.
hthatwhichcarriesthelighting loadis
antheloadedbatteryin thesamebattery
ationthattheconnectionstothe lighting
dinaccordancewiththeinstructionplate
nt.
hargingRate.Refertohigherauthority
orchargingrate.
eplacebatteryasinstructedinpara-
SE.Causedbyexcessivetemperature
rtohigherauthorityfordecreasein charging
ERYTERMINALS.
teCausingAcidtoSprayonTerminals.
osts.Cleanpostsandterminalsthoroughly.
sweakenedbycorrosion.Connectterminals
tumtoexposedmetal.Refertohigher
hargingrate.
nalsDestroyed.Proceedasdirected
OSTONBATTERY.
tions.Replacebatteryasinstructed
t.Replacebatterycable.
encheckingtheconditionofthe
eengineandsetthe throttletoidlethe
perminute.
ICKORREGISTERCHARGEBUTLEFT
LICKSORREGISTERSCHARGE.Replacede-
fcurrentthroughleftbatteryammeterindi-
ircuitiscomplete.
ATTERYAMMETERBOTHFAILTO
oimprovementisobserved,proceed
e orcorrodedconnections,andclean
thearmatureterminalofthegen-
minalofthe regulator.Iftheammeters
,thearmaturelead fromthegeneratorto
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airedor replaced.Iftheammetersstill
edasinstep(d) below.
weenthearmatureterminalandthe
neratorregulator.Ifthe ammetersshow
egulatorisdefectiveandshouldbereplaced
sstill failtoshowdeflection,proceedas
weentheammeterandthe"A"ter-
orswitch.Ifthe ammetersshowdeflection,
kingmotorswitc