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YTECHNICALMANUAL

Y

Publ

icDomain,Google-digitized

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athitrust.org/access_use#pd-google

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MYTECHJUCALMANUAL

S3A,12March1943

MYAUGUST1943

tPrintingOffice

PublicDomain,Google-digitized

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ugust1943

CargoandWaterTrailersis published

danceofall concerned.

TARYOFWAR:

(2); Bn9(2);IBn 5(3);C9 (8);

ls,seeFM21-6)


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ANDWATERTRAILERS

NGINSTRUCTIONS1

2

edData2-43-12

5-713-14

ualConditions..815

veMaintenance

3

ENANCEINSTRUCTIONS

on16-1724-30

ntiveMaintenance

38-42

bly25-2743-55

heel28-3456-60

61-66

ndWheelbearings46-5367-73

74-79

480-83

... ........... 86

TM9-883A,12March1943.


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ANDWATERTRAILERS

RATINGINSTRUCTIONS

publishedforthe informationandguid-

ng armschargedwiththeoperation,main-

ofthismateriel.

ionoftheall-steelcargo,woodbodycargo

nualcontainstechnicalinformationrequiredfor

careofthemateriel.The manualisdividedin

onsIto VI,inclusive,Paragraphs1to15,in-

ratinginstructions.PartTwo,SectionsVIIto

16to64,inclusive,givesvehiclemaintenance

ersonnelchargedwiththeresponsibilityof

withintheirjurisdiction.

atureoftherepair,modificationoradjust-

or facilitiesoftheunit,theresponsibleordnance

dsothattrainedpersonnelwith suitabletools

ovidedorproperinstructionsissued.


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LATEDDATA

s3

er-tiredvehicleisdesignedtocarryvaried

ng2,000poundsevenlydistributedoverthe

ndto carry250gallonsofdrinkingwaterfor the

sa drawbarwhichissupportedbyaretract-

hetraileris uncoupled.Theparkingwheelis

thedrawbar,andswingsupor down.Aspring

eupordownposition.The frameiscarriedona

mi-ellipticalspringsuspension.Thecentersof

eaxlebymeansofplate andboltassemblies.The

resupportedbystationarybrackets.Therear

shacklesheldinbracketsmountedtothe body.

embliesaremountedontheunder sideofthe

hemain springbumperplates.Twocombination

ghtsandstoplightsare installedontherearend

atthe leftsideofthetrailer. Thewheelsare

chareoperatedbyahand leverlocatedonthe

rtherearof thebody.Thesebrakesaretobe

only.Thetrailer hasalunetteeyeon itsdraw-

tmentforheight,whichcanbe coupledtoany

withastandardArmypintlehitch.

MODELS.

traileris madeupofformedsheetsteel,

bricatedsteelframe,allpartsbeingwelded

odyis equippedwithahingedsteeltail gate.

quippedwithremovablewoodside racks,along

oodroofslats.A tarpaulinwithropesandstraps

pperpartofthebody(figs.1, 2and3).

ileris acombinationofwoodandsteel

perismadeupof wood,boltedtogetherwith

isintegralwiththesteel subframe.Therear

thahingedwood-and-steelfabricatedtailgate.

quippedwithremovablewoodside racks,along

oodroofslats.A tarpaulinwithropesand

estheupperpartofthebody (figs.4,5and6).


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ANDWATERTRAILERS

PublicDomain,

Google-d

igitized

/http://www.h

athitrust.org/access

_use#pd-g

oogle

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LATEDDATA

PublicDomain,

Google-d

igitized

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_use#pd-g

oogle

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ANDWATERTRAILERS

ET

ED)

CKET(REAR)

VER

oTrailerTailGateandRear

PublicDomain,

Google-d

igitized

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_use#pd-g

oogle

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LATEDDATA


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NDWATERTRAILERS


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LATEDDATA

ED)

CKET

CKET

goTrailerTailGateandRear

ilerhasan ellipticalsteeltankwitha

weldedtothefabricatedsteelframe.Ahand-

datthefront endofthetank,to whichisattached

hoseand abellstrainer.Afaucetbox is

e traileratthefront(figs. 7and8).

CargoTrailers).


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ANDWATERTRAILERS


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LATEDDATA


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ANDWATERTRAILERS

depanels)18in.

)43%in.

ateddisk20x7 in.

steelbodytrailer)1300Ib

steelbodytrailer)3300Ib

in41Ib

axlebolts15in.

wposition26in.

3%ain.I.D.;6Vzin.O.D.;!1Mein.thick.

WaterTankTrailer).

(smalldiameter)28 Vain.

al

ateddisk,20x7in.

500Ib

3500Ib

in44Ib

axlebolts15in.

wposition26in.

3%2in.I.D.;6V4in.O.D.;IHiein.thick

urfacedroadsmaximum)

ryterrainmaximum)

50

(cargotrailer)40

erbodyfloor)28 in.

0in.

etteeye


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ON

ntrols5

NONCONTROLS.

ingbrakeleverislocatedon theright

rearofthe body.Thebrakeshouldbeapplied

onnectedfromthetowingvehiclewhetherona

e brakeshouldneverbeusedfor anypurpose

stbe releasedbeforethetrailerismoved.

ghtsare lightedbyinsettingcable

ler,into receptacleonthetowingvehicle

ailerisequippedwithbothserviceand

plights.Thelights canbechangedinstantly

ndfromblackouttoservice,byturningthe

oftrailer neartherearofthe body.

kingwheelislocatedon thedrawbar

ofthe lunette.Itcanberaisedfor towing,or

lingoutthe plungerandswingingthewheel

ngVehicle.

to pintlehitchonrearof thetowing

sonthetrailerto thetowingvehicle.

ginto receptacleonthetowingvehicle,

e lights.

lof thetrailer,makingsurethatforkis

p.

bymovinglevertowardfrontof the

cebreakagemayresultif brakesarelocked

owingvehicle.

r.

careshouldbetaken toallowforthefact

sturninsidetheturningradius ofthetowing

ngvehicleshouldbe steeredintheoppo-

desiredthatthetrailerbe turned.


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ANDWATERTRAILERS

TowingVehicle.

trailerbymovinglevertowardrear of

sideofdrawbarbracketandlowerthe

ungerandmakesureplungerisengagedin

cableplugfromthereceptacleontow-

nsofthe trailerfromthetowingvehicle.

unettefromthepintle ofthetowing

eaway.

odracks,beingsureto placeendsten-

er.

rtieloopson eachsideofbodyandtwo

ecurelyin place.

ofloadis2,000 pounds.Whenthetrailer

ento distributeloadequallyoverentirefloor

ghtat therearmayresultin tippingthe

omuchweightatthefrontwill makeitdiffi-

etowingvehicle.

cityofthewatertank is250gallonsof

0pounds.Whenthetrailerisloaded,caremust

levelunlessitis coupledtoatowingvehicle.

eris raisedtoohigh,therear endwillhang

ilertippingoverbackward.


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SUALCONDITIONS

onditions8

USUALCONDITIONS.

pecialpreparationsarenecessaryfor

heatandcoldforcargotrailers,other thanthe

orproperlubricationunderthese conditions,

ertrailersarenotdesignedtobe usedin

causenoprovisionforkeepingdrinkingwater

de.

n extremelysandyordustyconditions

pection,cleaningandlubricationofthetrailer

ewatertrailer,themanholecovershould

wntightly withthewingnut,exceptwhentank

cover.Thecoveronthebellstrainerat the

ld bekeptclosed,exceptwhenfillingthetank

aterfaucetboxcoversshouldbe keptclosed

eptwhendrawingwaterfromthefaucets.


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ANDWATERTRAILERS

NTIVEMAINTENANCESERVICES

0

1

yservice13

fficiency,itisnecessarythatthevehicle

edatintervalseachdayitis operated,also

aybediscoveredandcorrectedbeforetheyre-

failure.Certainscheduledmaintenanceservices

designatedintervals.Theservicesset forthin

ormedbydriveror crew,beforeoperation,dur-

fter operationandweekly.

enanceservicesarelistedonthebackof

eventiveMaintenanceServiceRecord,"WD

clesofall typesandmodels.Itemspeculiarto

stedonWDFormNo. 48,arecoveredinman-

emswithwhichtheyare related.Certainitems

notpertainto thevehicleinvolvedareelimi-

saswrittenintothe manual.Everyorganiza-

oleachdriverinperformingthe maintenance

nuals,whetherornot theyarelistedspecifically

FormNo.48thatapplyto thisvehicleare

oprovidespecificproceduresforaccomplish-

dservices.Theseservicesarearrangedto facili-

rvethetimeofthe driver,andarenotneces-

alorderas shownonWDFormNo.48.The

reidenticalwiththoseshownonthatform.

ofeachitemappliesalso toanysupporting

ndgenerallyincludesachecktoseewhetherthe

correctlyassembled,secure,orexcessivelyworn.

condition"isusuallyan externalvisual

whethertheunitisdamagedbeyondsafeor

m"goodcondition"isexplainedfurtherbythe

rtwisted,notchafedor burned,notbrokenor

d,notdentedorcollapsed,nottorn orcut.


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toseethatit is"correctlyassembled"is

nspection,toseewhetherit isinits normal

vehicle.

todetermineifitis "secure"isusuallyan

on,ahand-feel,orapry-barcheckforlooseness.

ncludeanybrackets,lockwashers,locknuts,

susedin assembly.

beunderstoodtomeanworncloseto,or

s,andislikelytoresulti nafailureif notre-

eduledinspection.

ctoryoperatingcharacteristicsbeyondthe

rrectmustbe reportedattheearliestopportu-

vidualin authority.

ERVICE.

eisdesignedprimarilyasa checktosee

en tamperedwithorsabotagedsincetheafter-

formed.Variouscombatconditionsmayhave

feforoperation,anditis thedutyofthe driver

otthe vehicleisinconditiontocarryout any

assigned.Thisoperationwillnotbeentirely

acticalsituations.

erationserviceconsistsofinspectingitems

heproceduredescribed,andcorrectingorre-

Uponcompletionoftheservice,resultsshould

edesignatedindividualin authority.

DDAMAGE.Lookforanyinjuryto trailer

equipmentingeneralwhichmayhaveresulted

ge,collision,fallingdebris,orshellfire sincelast

EFLECTORS.Iftacticalsituationpermits,

eethatalllampslight. Seethatlampsandwarn-

ndthatlenses arecleanandnotbroken.

Inspecttosee thattheyarein good

cure.

tires visuallyforcutsandbreaks.Re-

eads,embeddedglass,nails,orotherobjects

esttirepressure,andif under55pounds,in-

pectfordamageandlooseness.

NECTIONS.Observedrawbarassembly

sembledandfastenedtoframe.Inspectlunette


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ANDWATERTRAILERS

conditionfor attachingtopintle.Besure

elyandthatsafetychainsarecompleteand

towingvehicle.Pushplug oftrailerwiring

wingvehicle.

ANDTARPS.Examinebody,racks,and

ectloadforshifting andproperstowing.In-

damage.Inspecttailgate toseethathingeis

dthatfasteningchainsare presentandingood

quippedwitha 250-gallontankbody,inspect

oseparationoftankfrom frameatweldedjoint,

ckssecurely.

or250-gallonTankTrailer.Thefollow-

rformedin additionto,andafter,thoselisted

AL.Inspecttank,valves,andfittingsfor

dvalvestem,tightenpackingnutuntil leak

o tightennuttootightso astoscorevalvestem.

nspectloadingpumpandtestit tosee

on.Ifseepageisnotedaroundpackinggland

tightenpackingnut,using carenottogetit

bescored.Inspecttheintakehoseforcuts or

intakeendtosee ifitis present,ingoodcon-

RATIONCHECK.Theduring-operation

ediatelyafterthevehicleisput inmotion,in

ERVICE.

on,listenforanysoundssuchas rattles,

hatmayindicatetrouble.Anytimethebrakes

,considerthisa test,andnoticeanyunsatis-

mance.

erationservicesconsistofobservingitems

heproceduresfollowingeachitem,andinvesti-

erioustrouble.Noticeminordeficienciestobe

rliestopportunity,usuallynextscheduledhalt.

nalertfor anyabnormalperformance

fiattire,draggingbrakes,unhitchingofpintle

oftowbar frombodyoftrailer,shiftingofload,

tarpaulinorcurtains,orweavingoftowed


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regardedasminimummaintenancepro-

formedunderalltacticalconditions,even

aintenanceservicesmustbeslightedoromitted

vicesconsistofinvestigatinganyde-

eration,inspectingitemslistedbelowaccord-

wingtheitems,and correctinganydeficiencies

rrectedshouldbereportedpromptlytothe

thority.

ES,HUBS,ANDBRAKEDRUMS.Feelthese

emperatures.Ahotbrakedrumindicatesa

hub indicatesadamaged,improperlyadjusted,

dwheelbearing.Acolddrummayindicatean

DSUSPENSIONS.Observespringsforbroken

conditionindicatesbrokenspringbolt orre-

tsandshackleboltsfortightnessand damage.

Inspectwheelsandrims toseethat

dnutsattachingwheelsto hubstoseethatall

etiresfor damageandunder-inflation,

mbeddedobjectsfromtreadsandcarcass.

pectfendersfordamageandlooseness.

NECTIONS.Inspectdrawbarassemblyto

enedtotheframe.Inspectlunetteeyeto see

forattachingtothe pintle.Besureparking

wingpositionandis keptinthispositionby

Inspectsafetychainstoseethat theyare

othtrailerandtowingvehicle.Pushplug of

socketoftowingvehicle.

ANDTARP.Inspectbodyfordamage,load

wing,tarpfor damageandcorrectfastening.

th a250-gallontank,inspecttankingeneral

fmountings.Payparticularattentionforsepa-

ntankand frame,andseethatmanholecover

ely.

or250-gallonTankTrailer.Thefollow-

rformedin additionto,andafterthoselisted

RAL.Inspectthetank,valves,andfittings


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ANDWATERTRAILERS

DWEEKLYSERVICE.

ngisparticularlyimportant,becauseatthis

ehicletodetectanydeficienciesthatmayhave

oseheispermittedtohandle.He shouldreport

edindividualinauthority,theresults ofhisin-

performedthoroughly,thevehicleshouldbe

oment'snotice.Thebefore-operationservice,

ennecessaryonlyto ascertainwhetherthe

ditioninwhichitwasleftupon completionofthe

heafter-operationserviceshouldneverbeen-

emetacticalsituations,butmaybe reducedto

vicesoutlinedfortheat-haltservice,ifnecessary.

ormingtheafter-operationservicethe

dconsideranyirregularitiesnoticedduringthe

n,during-operation,andat-haltservices.The

onsistsofinspectingandservicingthefollowing

fter-operationservicethataremarkedby an

nalweeklyservices,theproceduresforwhich

feachapplicableitem.

EFLECTORS.Testalllights,iftactical

nsesandwarningreflectors,andexaminefor

ountings.

LWIRING.Inspectwiringforbreaks,broken

senessoffasteningon theframe,andgood

ockandswitch.Inspectswitchtoseethatit is

ngsatisfactorily,andsecure.

rbreaks.Removestones,glass,nails,or

ntreadsorcarcass.Testtire pressures,andif

this pressure.Iftireis warm,pressuremay

reiscool,recheckpressurebeforereleasing

agedorexcessivelyworntires.

DSUSPENSIONS.

enor shiftedleaves;thelattercondition

gspringbolts.InspectU-boltsfor tightness;

ghtness,bothatsprings andframe.

osenutsandbolts.

pectfendersfordamageandlooseness

enattachingnutsandbolts, iffoundtobe

NNECTIONS.

blyandseethatit isproperlyfastenedto

on.Inspectlunetteeyetosee thatitisi ngood

pintle.Besureparkingwheellocksin parking

tion,andis heldsecurelyinlatterpositionby


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tsafetychainstoseethattheyarecomplete

ailer wiringsecurelyintosocketontowing

mblyandmountingbolts,andlubricate

ANDTARPS.Examinebody,racks,and

ecttarpfor propernumberofhold-downropes

ears,orotherdamage.Inspecttailgateto see

rkingorderandfasteningchainsarepresent

iler isloaded,seethatload isproperlystowed.

250-gallontank,inspectweldjointbetween

etherthereisany indicationofseparation.

oseethatitis inalinementwithopening,that

on,andthatcoverlockssecurely.

EEL,RIM,ANDSPRINGU-BOLTNUTS.

nd springU-boltnuts,replacinganynuts

swhereinspectionorexperienceindi-

lybasis.

ASNEEDED.

ereinspectionofthe vehicleindicates

vehicleasindicatedonthelubrication

dinspectionindicatestheneedona weekly

ICLE.

emoveexcessdirtand greasefromexte-

andremovealldirtand grease.Ifwash-

leanas possible.

or250-gallonTankTrailer.Thefol-

eperformedinadditionto, andafter,those

RAL.Inspecttank,valves,andfittings

tentiontoweldedjointsof tank,pipeconnec-

eakaroundvalvestem,tightenpackingnut

care nottotightennutexcessivelysoas to

valveswhichleakbecauseofimproperseating.

ndtest ittoseethat itisin workingcon-

round packingglandonpistonrodwhentest-

singcarenotto getittootight, asrodmaybe

eforcutsandbreaks;inspectstraineron intake

goodcondition,andclean.

leanintakestrainer.


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ANDWATERTRAILERS

alpartof preventivemaintenance,deter-

heserviceabilityofpartsandassemblies.

ldbe lubricatedasindicatedonthe

Severeoperatingconditionsmaynecessitate

eciallyincaseswherevehiclecomponentshave

chemicals,snowormud.

maynotbepossible tosupplyacom-

antscalledforbythe LubricationGuideto

ns.Itwillbenecessarytomakethebest useof

,subjecttoinspectionbytheofficerconcerned,

nsibleordnancepersonnel.

ollowingnotesapplytotheLubrication

bricationandservicebelow-10F, refer

eapplyinglubricant.Lubricateuntilnew

earings.CAUTION:Iftraileris tobewashed,

movewheel,cleanandrepackbearings.

catetrailerhinges,brakelever,links,

wheelspringlatch.

LUBRICATION.Springs.

alsindicatedarefornormalservice.For

ed,heat,water,mud,snow,roughroads,dust,

ently.

ninstructionsarecloselyfollowed,proper

actoryresultsnotobtained,areportwill be

cerresponsibleforthemaintenanceofmateriel.

erecordoflubricationservicingwillbe


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fe


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ANDWATERTRAILERS

NTENANCEINSTRUCTIONS

N

e17

ceandrepairbythe crewandotherunits

minedbytheavailabilityofsuitabletools,avail-

capabilitiesofthemechanics,timeavailable

Alloftheseare variableandnoexactsystem

ribed.

TENANCE.

maintenancedutiesforwhichtoolsand

ortheusing armandordnancemaintenance

ndrepairswhichare theresponsibilityof

ersonnelmaybeperformedbyusing armperson-

ermit,withinthediscretionofthecommander

wordsasusedinthislist ofmaintenanceallo-

ws:

ganizationregiments,battalions,

andseparate

celightmaintenancecompanies,

ompanies,ord-

ancebattalions,

nceheavymaintenancecompanies

ops.

cebaseregiments,ordnance

ufacturers'

onsistsofservicing,cleaning,lubricat-

g,tighteningboltsandnuts,andmak-

ngexternaladjustmentsofsubassem-

sor assembliesandcontrols.


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N

sistsofremovingthepart,subassem-

.bly orassemblyfromthevehicles,and

reconditioned

yorassembly,

e.

stsofmakingrepairsto,or replace-

entofthe part,subassemblyorassem-

tcanbe accomplishedwithout

gthesubassem-

snot require

machining,

ancing.

sistsofcompletelyreconditioning

dreplacingin serviceablecondition

nserviceablepart,subassemblyor

cludingweld-

tting,alining,

dtesting.

elBodyCargoTrailer.

X

X

nd/orreplaceX

X

X

replaceX

replaceX

eand/orreplaceX

reline)X

viceand/orreplace....X

airX

replaceand/orrepairX

replaceX


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ANDWATERTRAILERS

d)

laceX

airX

ceX

ceX

rX

dX

aceX

airX

ceX

X

X

X

X

bliesreplaceX

blies-repairX

tictireunit)service

heelunit)replace....X

aceX

irX

pneumatictireunit)

replaceX

repairX

rebuildEX


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N

ceX

eX

(withserviceableunit

odBodyCargoTrailer.

X

EX

nd/orreplaceX

X

X

replaceX

replaceX

d/orreplaceX

ne)X

nd/orrepairX

replaceX

X

EX

laceX

airX

ceX

nsionreplaceX

nsionrepairX

nsionrebuildX


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ANDWATERTRAILERS

)

ceX

rX

ceX

X

X

X

X

bliesreplaceX

bliesrepairX

X

aceX

irX

replaceX

repairX

rebuildEX

ceX

eX



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N

erTankTrailer.

X

X

nd/orreplaceX

X

X

replaceX

replaceX

rviceand/orreplace....X

airX

and/orreplaceX

(reline)X

laceX

airX

ceX

X

X

X

X

cetreplaceX

cetrepairX

eplaceX

replaceand/orrepairX

yreplaceX

yrepairX

eplaceX

epairX

ebuildX


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ANDWATERTRAILERS

ceX

nsionreplaceX

nsionrepairX

nsion-rebuildEX

bliesreplaceX

bliesrepairX

tictireunit)service

heelunit)replaceX

aceX

irX

pneumatictireunit)

replaceX

repairX

rebuildEX

ceX

eX


edwillnormallybeperformedintheechelon

eechelonsasindicatedby"E"may

spectiveechelonsinemergenciesonly.


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vemaintenanceservices18

EVENTIVEMAINTENANCE

ntenanceinspectionsandservicesarea

functionoftheusing arm,andaretherespon-

operatingorganizations.

uenciesofthepreventivemaintenance

econsideredaminimumrequirementfornor-

Underunusualoperatingconditions,suchas

ddustyorsandyterrain,itmaybe necessary

nanceservicesmorefrequently.

CIPATION.Thedriversshouldaccompany

emechanicswhileperiodicsecondechelonpre-

vicesareperformed.Ordinarilythedrivershould

heduledpreventivemaintenanceserviceina

n;thatis,itshouldbedry andnotcakedwith

extentthatinspectionandservicingwillbe

ever,thevehicleshouldnotbewashedorwiped

ertaintypesofdefects,suchascracks,leaks,and

ssembliesaremoreevidentifthesurfacesare

n thosecontainedinthegeneralproce-

cificproceduresinstep(5) whichfollow,are

rformanceofapreventivemaintenanceservice,

ency,othersectionsofthe vehicleOperator's

eminvolved,ora designatedindividualin

lted.

S.Thesegeneralproceduresarebasicin-

ollowedwhenperformingtheserviceson the

cprocedures.NOTE:Thesecondechelonper-

ytrainedinthese proceduressothattheywill

.

edsubassembliesareinstalledto correct

betakentoseethattheyare clean,correctlyin-

atedandadjusted.

ricantretainerseals,a coatingofthelubri-

thesealing surfaceofthelipof theseal.When

eal,itshould besoakedinSAENo.10 engine

oratleast 30minutes.Then,theleatherlip


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ANDWATERTRAILERS

ybyhand,beforeinstallingtheseal.The lip

arred.

ofeachitemappliesalso toanysupport-

,andusuallyincludesachecktosee whether

on,correctlyassembled,secure,orexcessively

stbethoroughlytrainedinthefollowingex-

condition"isusuallyan externalvisual

hethertheunitisdamagedbeyondsafeor

mgoodconditionisexplainedfurtherbythe

ortwisted,notchafedor burned,notbroken

yed,notdentedor collapsed,nottornorcut

toseethatit is"correctlyassembled"is

nspectiontoseewhetherit isinits normal

vehicle.

todetermineifitis "secure"isusuallyan

on,ahand-feel,orapry-barcheckforlooseness.

ncludeanybrackets,lockwashers,locknuts,

susedin assembly.

beunderstoodtomeanworncloseto,or

s,andislikelytoresulti nafailureif notreplaced

inspection.

eareindicatedbyrepeatingtheitem

hichshowtheintervalat whichtheservices

howthat thepartsorassembliesareto receive

es.Forexample,anitemnumberinoneorboth

en"procedure,meansthattheactualtightening

ormed.Thespecialservicesinclude:

aryadjustmentsinaccordancewiththe

hicleOperator'sManual,specialbulletins,or

vehiclewithdry-cleaningsolventtore-

rt,andotherforeignmaterial.Aftertheparts

cleanfluid anddrythemthoroughly.Take

n untilreassembled,andbecertaintokeep

ubberorothermaterialwhichit willdamage.

secoatingfromnewparts,sincethismaterial

applieseithertolubricationoperations

vehicleLubricationGuide,ortoitemsthat donot

shouldbe performedinconnectionwiththe

ifpartshavetobedisassembledforinspection

PublicDomain,

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stsofperformingspecialoperations,such

ter,drainingandrefillingunits withoil,and

dge.

perationsshouldbeperformedwithsuffi-

eonthewrenchhandle)totightenthe unit

nicalpractice.Usetorque-indicatingwrench

ertighten,asthismaystrip threadsorcause

alwaysbeunderstoodtoincludethecorrect

s,locknutsandcotterpinsprovidedto secure

itdifficulttoperformthe completepre-

ceduresatonetime,they cansometimesbehan-

ocompletealloperationswithinthe week,if

eathaltsand inbivouacareasmustbeutilized,

tmaintenanceoperationsarecompleted.When

tion,itemswithSpecialServicesin thecol-

consideration.

eventivemaintenanceproceduresthatfol-

eoutlinedon WDAGOFormNo.461,whichis

ceServiceWorkSheetforWheeledandHalf-

msontheworksheetthatdo notapplytothis

the proceduresinthismanual.Ingeneral,

fitemsontheworksheet isfollowedinthe

someinstancesthereisdeviationfor conserva-

eandeffort.

ES.Theproceduresforperformingeach

thly)and6000-mile(six-month)mainte-

cribedinthefollowingchart.Eachpageofthe

s leftedgecorrespondingtothe6000mile and

erespectively.Veryoftenitwillbefoundthat

esnotapplytoboth scheduledmaintenances.

hproceduretofollow,lookdownthe column

tenancedue,andwhereveranitemnumber

ationsindicatedoppositethenumber.

CECHART

ollows:

Examinetoseethatallstems

correctpositionandthatall

installedsecurely.Donot

esforcuts,bruises,breaks,

eddedglass,nailsandstones.

PublicDomain,

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ANDWATERTRAILERS

dwear,watchingforanysign

heredgesandone-sidedwear.

cescausingsuchconditionsshould

tedorreported.Thewheelposi-

rwearshouldbechangedto

resandnon-directionaltires

samevehicle.Directionaltires

dinarilybemountedsothat

pwhenviewedfromfront.

rimsandtheirlockrings

onditionandsecure.

elstudnutssecurely.

ndexaminetoseethatlinings

lysecuredtobrake shoes,in

hdrums,freeoflubricant,and

oinspecttoseethatbrakeshoes

erlysecuredandguidedby

nectinglinks,guides,andsprings

nsttheircamsor stopsbyre-

sofliningaboverivetheadsat

esufficientforat least1,000

nings arebadlycontaminated

ningsonboth brakes.Iflinings

atedwithlubricant,cleanthem

romthelinings withawire

ressedair.

Thoroughlycleanalldirt and

eepingsolventawayfrombrake

dsupportstoseethat theyare

ymounted,andnotexcessively

akesupportboltsand drum-

NOTE:On6,000milemainte-

emNo.52should beperformed

einstalled.

entrelateditemsarecom-

noradjustmentmethodsothat

ncefrombrakedrums.Ifnew

,adjustshoesby majoradjust-

dinparagraph55.

ndNuts).Inspecttoseethat

on.Revolvethemandobserve

siverun-out.Withoutremoving

encesofloosenessinwheelbear-

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wheelsandlistenforindications

earings.Examinearoundbrake

ricantleaks.

ingandoilseals.Cleanthor-

balls,racesandcagestosee that

and thatcupsaresecure.If

,newcupsshouldbeinstalled.

rfacesuponwhichbearingsare

dition.Afterlubricatingwheel

anddrumassembliesintoplace;

s aslightdrag,andbackoff

ndPawl).Inspecttosee

odcondition,adequatelylubri-

ed,andsecurelymounted.Apply

observewhethertheyoperate

ufficientamountoftotal lever

herpawlmeshesproperlywith

inapplied position,andthat

smarenotexcessivelyworn.

olts,Hangersand

hattheseitemsare ingood

mbledandsecure.Springclips

ce;springleavesshouldnotbe

position.This maybeanindica-

t. Examinetoseethatdeflection

ndapproximatelythesame.

orexcessivewearbymeansof

gU-boltssecurelyanduni-

heritis sprungorbent,andthat

re.

oseethatmountingsareall

re.

mbers).Inspectframe,

ssmemberstosee thattheyare

ndcorrectlyalined.

mmets.Inspecttheseitems

seethattheyare ingoodcondi-

onnectedandsecure.

kout).Inspecttoseethat

operatesproperlyandthat with

roperly;seewhetheranylamps


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ANDWATERTRAILERS

nspectalllamps toseethat

and secure;examinefordirty

treflectorsareallpresent,in

secure.

thatconnectionsareingood

re.

dersarein goodcondition

dChains,Floor,Skid

owsandTarpaulins).

ems areingoodconditionand

properlyalinedandfastened

dendcurtains,fastenersor

alhooksorloopson thebody

nditionandsecure,andthattail

eadequatelylubricated.

250-gallonTankTrailer).

ngspecialattentiontoall weld

entankandframeandseethat

ation.Inspectpumpandtest.

enup nearlyfullamount,re-

od.Inspectvalvesforleakage

rleakagedueto badseatingof

vestem,ifneeded;replace

fimproperseating.Inspect

t closesandlocksproperly.

jointsforleaks.

ctpaintofentirevehicleto

tion,payingparticularattention

hthatmightcauseglareor re-

arkingsandindentificationfor

ationplatesandtheirmount-

eelandLockPin).Inspect

eingoodcondition,correctly

equatelylubricated,andwhether

elyintowingandparkingposi-

etoallfittings andgears,andoil

vefittings.

nggearassemblyand


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unettetoseethatit isin

etodrawbar.

ntingsandassemblybolts

nspecttoseethattheyare

relyconnectedtotrailer


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ANDWATERTRAILERS

(cargoandwatertrailer)19

el20

eelbearing22

SEMBLY(CARGOANDWATER

goTrailer.

emedy

bolts.Tightenboltsin springshackles

OFTOP.

rviceorreplace.

t. Replace.

e.

nerReplace.

etainers.Replace.

Replace.

Replace.

nges.Repairor replace.

g. Repairorreplace.

eg Repairorreplace.

pins.Repairorreplace.

erTrailer.

bolts.Tightenboltsin springshackles


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FTANKMANHOLECOVER.

emedy

ce.

pairorreplace.

eplace.

ILLTANK.

umpbyremovingpriming

th

open.Openstrainerbyunscrewingwing

nstrainer.

Cleanhoseandpiping.

y.Servicetightenstuffingboxgland

mp.

ogged.Serviceorreplace.

AUCETS.

dflush.

e.

at.Replacefaucet.

CETBOXES(A,fig.7).

htenbolts.

ges.Repairorreplace.

ace.

INGWHEEL,

D.

ce.

gbolts,spring

ts.

ATESHARD.

replacequadrant(par.

Seefig.9.)

acespringandlatchrod.

placerod.

wheel.


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ANDWATERTRAILERS

ent.

hicle

s.

inter-

f

tions.

n;repair

icle.

epair.

par.

eshort

SANDWHEELBEARINGS.

ent.

ed.

be.

a,c

55

62).

replace


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LD.

norhave

norhave

atit

tral

y

ween

ts.

r.55a)

ars.56

ke

and 59).

ssembly

esand

57).

nd57).

nd57).

7g).

nd64).

and

e(pars.


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ANDWATERTRAILERS

emedy

place(par.27,a(15)).

Replaceshacklecomplete.

dadjustwheelbearings

stment.Adjustwheelbearings(par52, a).

htenallbolts.

ars.61and62).


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BLY

eassemblycomponents26

meassemblycomponents27

(fig.10).The bodyismadeofsheet

rmthebox,and isintegralwiththe steelframe

ails, andcrossbolsters.Thebodyfrontand

andaremadeof No.14-gagesteel.Therearof

ngedtailgatemadeofNo.14-gagesteel and

straphinges.Thesidepanels areeachequipped

hareplacedtheremovablesiderackassembly

havetarpaulinloops weldedtopanelstowhich

.

r(fig.11).The bodyismadeofs/s-inch

tedtogethertoformabox.The bottomofthe

ardwood,andisbuilt integralwithsteelframe-

mbers,frontandrearsill, twosteelcrossmem-

ross members.Thefrontandsidepanelsare

othe frameworkandbottom.Therearofthe

ngedtailgateofhardwoodreinforcedwithmetal,

hreeheavyhinges.The sideshavemetal

owhichareplacedthe removablesiderack

sandendshavetarpaulinrope hooksboltedto

paulinr opesaretied.

.1,2,4and 5).Theset ofracksconsistof

t-hand,andtwoendracks,all ofwhicharere-

ppedwitha canopytop,consistingoffour

h,inadditiontothe racks,formanenclosure

nstalled.The racksaremadeofhardwood

thcarriagebolts.The siderackpostsarein-

donbodysidepanels.The endracksareheldin

hsecurethemtoside racks.Theroofslatsare

edatthe topofsideracks.Thetarpaulinis sten-

andhasfourtie ropestoeachsideandfour on

nd rearendflapshaveleatherstraps for

and12).The250-gallonellipticalwelded

ell and12-gageheadsandbaffleplates,witha

eartherear.Thetankis equippedwitha16-inch

withahinged cover.Twosaddlesintegralwith


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NDWATERTRAILERS


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BLY

^^ ',(K.

11


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ANDWATERTRAILERS


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ANDWATERTRAILERS

e,consistingofsideandendrails.Frameand tank

ouswelds.Twofenderbracketsarewelded

reflectorbracketateachrearcorneroftheframe.

UIPMENT(fig.7).Ahandpumpis as-

d oftank.Supplyofwaterenterstankby

entrybeingbelowmanholecover.Waterenter-

metal andclothstrainer.Whennotin usepump

rticalposition.A25-footsuctionhoseequipped

mbledtothebottomofthe pump.Thehose,

coiledpositionon aracksupportedbytheframe

edwithtwoleatherstraps.Waterisdrawnfrom

thefrontbymeansofpiping leadingtofaucetsin

meatthefrontof trailer.Eachfaucetboxis

gedcoverwhichisheldin anopenpositionby

n.

NDFRAMEASSEMBLY

rgoTrailer.

ebodyonasetof horsesorsuitablesup-

ground.

FITTINGS.Unscrewfittingsfromspring

ONTROLCABLES.Brakecontrolcablesand

nectedfrombellcrankleverunderbodyby

spins.Removenuts,lockwashersandcap

tsupports.Removesupportsandbendcables

ytokeepcablefreefromground.

CRANKLEVER(fig.13).Removeupper

ellcranklever tobodystud.Removebell

studfromundersideofbody.

GERBOLTS.Removecotterpinsandslotted

driveboltsoutofhangers,using ablockofwood

bolt.

SPRINGASSEMBLY.Removebyloweringaxle

undandroll outfromunderbody.

WITCH.CARGOBODY(fig.10),TANKBODY

ts,lockwashersandbolts,andlet switchhang

electriccablesandfourtaillightwiresfrom

ABLEANDPLUGASSEMBLY(fig.14).Refer


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BLY

W

AssemblyPartiallyDisassembled

OLTS.Removetwonutsandlockwashers

of drawbarrailstolipat backoffrontspring

U-BoLTS.Removefournutsandlockwash-

ndrawbarrails tofrontbodycrossrail.Remove

ANDPARKINGWHEELASSEMBLY.Lower

elassemblytogroundandpull outfromunder

emoveupperandlowerfenderbolts,

dnuts.Removefenders.(NOTE:Onwater

onwithfender.)

DBLACKOUTTAILLIGHTANDSTOPLIGHT

nrightandpullwire connectingplugsoutof

twonutsandlockwashersfromtaillightstuds

outuntil studsarefreeofbracket.Remove


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ANDWATERTRAILERS


paragraph42a.

RATINGLEVER(fig.13).Pullcotterpin

andremoveclevispin fromclevis.Pullad-

ke.Backoffnuts,andremovelockwashers

screws.Pulloutcap screwsandremovehand

S.Removeroundheadscrewsandnuts

ectorsfromsideand rear.

MPERSPRINGASSEMBLIES.Removenut

securingvolutespringand supportplateto

movetheassembly.Repeatoperationonoppo-


ews,twohexagonal-headcapscrews,nutsand

bracket.Removebracket.

SSEMBLY.Pullcotterpinsoutoftail gate

ovewashersfromrod.Drivegatehingerod or

ebolts.Pullchainwithlatchpinsout oftailgate

te.

ebodyonasetof horsesorsuitablesup-

ground.

FITTINGS.Unscrewfittingsfromspring

TROLCABLES.Disconnectbrakecontrol

mbellcrankleverunder bodybyremoving

movenuts,lockwashersandcapscrewsfrom

emovesupportsandbendcablesbackover

ablefreefromground.

CRANKLEVER(fig.13).Removeupper

ellcranklever tobodystud.Removebell

studfromundersideofbody.

NGERBOLTS.Removecotterpinsandslotted

driveboltsoutofhangers,using ablockof

endofbolt.

RINGASSEMBLY.Removebyloweringaxle

undandroll outfromunderbody.

WITCH(fig.12).Removethreenuts,lock

switchhangon wires.Disconnecttwoelectric

esfromswitch.


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BLY

ABLEANDPLUGASSEMBLY(fig.14).Re-

chholdcableclampstodrawbarand bodyleft

dplugassemblyfromdrawbarandbody.

OLTS.Removetwonutsandlockwashers

of drawbarrailstolipat backoffrontspring

U-BOLTS.Removefournutsandlock

fastendrawbarrailsto frontbodycrossrail.

ANDPARKINGWHEELASSEMBLY.Lower

elassemblytogroundandpull outfromunder

NDFENDERAPRONS.Removeupperand

rsandnuts.Removefendersandfenderapron.


rightandpullwire connectingplugsoutof

twonutsandlockwashersfromtaillightstuds

outuntil studsarefreeofbracket.Remove


capscrews,nutsandlockwasherswhichsecure

railsandremoveclips.Pullouttaillight wire

RATINGLEVER(fig.13).Pullcotterpin

andremoveclevispin fromclevis.Pullad-

ke.Backoffnuts,andremovelockwashers

screws.Pulloutcap screwsandremovehand

S.Removeroundheadscrewsandnuts

ectorsfromsideand rear.

MPERSPRINGASSEMBLY.Removenutand

ringvolutespringandsupport platetounder

e assembly.


onal-headcapscrews,nutsandlockwashers

movebracket.

RWINGNUTANDEYEBOLT.Unscrewwing

movewasher;driveoutpinandremoveeyebolt

RANDHINGE.Pullcotterpin,remove

emovecoverandhinge.


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ANDWATERTRAILERS

NER.Unscrewroundheadboltofhose

trainercan bepulledfromintakehose.

rewroundheadboltofhoseclampenough

frombottomconnectionofpump.Unbuckle

kand removehose.

P.Removetwonuts,lockwashersand

werbracket.Removepumpbyunscrewing

eadingtotankopening.Hold pipetokeepit

K.Removefournuts,plainwashersand

me.

XES.Unscrewunionringonfemaleunion.

shers,plainwashersandstepboltsand lower

aterboxeswithpipingassemblytogroundand

DYANDFRAMEASSEMBLY

rgoTrailer.

SEMBLY.Mounttailgateontrailerbody

nsin gatelatchestoholdtail gateinposition.

lgatelatchesuntilhinge eyesandeyebolteyes

d.Installwashersonrod orhingepins.Insert

S.Placereflectorssothat holeslineup,and

ws,lockwashersandnutsforeachreflector.

BLACKOUTTAILLIGHTANDSTOPLIGHT

bracketwithsideofbodyso thatflangeex-

y;onwoodcargobodythebracketflangeextends

eadscrewthroughbodyand thenthroughtop

herandnut.Tightennut.Installhexagonal

ameandbottomofbracket.Applylockwashers

TE:Caremustbetaken toscrapethepaint

edtosidesofbodyto insureproper-groundfor

cefendersand/orfenderapronsintoposi-

lineup.Installroundheadboltby startingbolt

hingboltinto fenderupperhole.Installflat

ut.Tightennut.Installhexagonalheadbolt

enthroughfenderlowerhole.Install flat

ut.Tightennut.Installremainingbolts,

ashion.NOTE:Ifequippedwithfenderaprons,

artingthe boltthroughtheuppercenterhole


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BLY

chingtheboltintotheupper centerholeofthe

r,lockwasherandnut. Tightennut.Insert

eachside ofcenterhole,hookboltheadsin

oframe.Installwashers,lockwashersandnuts.

washer,lockwashersandnutsand tightenall

PERSPRINGASSEMBLIES.Positionvolute

nundersideof body.Securetobodywithbolt,

ennut.Repeatoperationforoppositeside.

SSEMBLY.Placedrawbarassemblyunder

OLTS.Lineupholein rearendofdrawbar

ngbracket,withdrawbaronthe outside,and

stalllockwashersand nuts.Tightennuts.

uredrawbarrailstobodyfrontrailwith

andnuts.Tightennuts.

BLEANDPLUGASSEMBLY.Refertopara-

ononsteelbodyand paragraph39b(1)for


paragraph41c.

SWITCH.Refertoparagraph37a(1) for

ndparagraph39b (2)forconnectingtowood

SWITCH.Refertoparagraph37a(2).

DBLACKOUTTAILLIGHTSANDSTOPLIGHTS.

installationonsteelbodyandparagraph43b

dy.

PRINGASSEMBLY.Placeaxleassembly

ewrap-aroundspringeyeto thefront,andbrake

TS.Insertfrontspringeyeinto frontspring

withlubricatorhole tooutsideoftrailer,and

oodblock)into placewithbuckingbaragainst

slottednut.Insert andspreadcotterpin.In-

rearspringhanger.Drivespringbolt withlubri-

er intoplace.Installandtightenslottednut.

n.Be suretheserrationsonthe springbolts

sinthefrontspring bracketsandrearshackles

s.

ONFITTINGS.Installlubricationfittingsin


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ANDWATERTRAILERS

AILERSONLY

NUT

N

VER

REW

EMBER

mentDiagram

LCRANKLEVERASSEMBLY.Placebell

studonunderside ofbody.Insertstudthrough

sherand uppernutonstud.Tightennut.

RATINGLEVER.Lineupbrakeoperating

andinstalltwocapscrews,lockwashersand

brakeleveradjusting yokewithbrakelever

cotter pininclevispinand spreadcotterpin.

LESTOBELLCRANK.Lineupbrakelever

viswithbellcrankand installclevispins.Insert

ndspreadcotterpins.Positionbrakecablecon-

.Placecablesupportbracketovercab'econduit

ocap screws,lockwashersandnuts.Tighten

owingprocedureinnextstep.

ESANDBRAKES(fig.15).Withbrake

hetnotch,adjusthandbrakeclevissothatcenter


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BLY

spaced5%inchesfrombolsterorframecross

eclevisadjustingnut.Removeadjustinghole

ckingplates.Insertscrewdriverinslotand

w.Tightenbothbrakeadjustingscrewsby

drivertowardcenteroftrailerwheeluntil drag

rotated.Removecableslackandinsertclevis

orouslyseveraltimes untilconduitsare

rpawltofirstratchetnotch.Removecable

esuntilall slackisremoved.Adjustcable

njustbe inserted.Insertandspreadcotterpins.

pnuts.Loosenbrakeadjustingscrewsuntil

Applybrake leveruntiltrailerwheelwith

edbyhand.Loosenbrakeadjustingscrewon

wheelsisequal.Returnbrakelevertorelease

gholecoverplates.

ES.Placewaterboxesonrightandleftside

withfour nuts,lockwashers,plainwashersand

gon femaleunion.

nstallhoserackatfrontof framewith

dbolts.

Screwentirepumpassemblytopipelead-

untilfitting istightandpump isinverticaland

pumptolowerbracketwithtwonuts,lock

cthosetobottomconnectionofpump.Se-

eningroundheadboltonhoseclamp.Secure

bucklestraps.

ER.Inserthoseendofbell strainerinhose,

oundheadboltonhose clamp.

ANDHINGE.Placecoverovertankopen-

s.Inserthingepin,placeon washerandinsert

WINGNUTANDEYEBOLT.Placeeyebolt

f tankopeningoppositehinge,insertpinand

tterpin.Spreadcotterpin.Screwwing nuton

MBLYCOMPONENTS.Proceedasoutlined

ugh(20).


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ANDWATERTRAILERS

WHEEL

0

adrantremovalanddisassembling....33

adrantassemblingandinstallation....34

arassemblyconsistsofthedrawbar

ye,tworailsandtwosafetychains.Therails are

reinforcedchannelsandareattachedto the

withfour7iox1 Vi-inchcapscrews.Thesafety

edrawbarbracketatthe extremefrontbya

xtendsthroughbothrailsandthe drawbar

tepassesthroughthedrawbarbracketcasting

her,castellatednutandcotterpin.Thedrawbar

middletotheunderside ofthefrontbodycross

ds ofthedrawbarrailsare boltedtoalip on

heparkingwheelis fastenedtothedrawbar

ofaquadrantandpivot bolt.Theparkingwheel

pportwheneverthetrailerisuncoupledfrom

gthe trailer(fig.16).

wheelswingsonapivot boltandiscon-

ndrod.Itis designedtoswingupwhenthe

ownwhilethetrailerisparked.The spring

wheelineitherthe upordownpositions.The

latch rodoutandmovingtheparkingwheel

on.

ctionX,par.26 a(8)through(11).

BLING.

Assembly.Removecotterpin,slotted

erbossofdrawbarcasting.

Removecotterpin,castellatednutand

wbar.


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WHEEL


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ANDWATERTRAILERS

G

ING

FITTING

AssemblyDisassembled


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WHEEL

ovecotterpinandslottednut(onlunette

ng.Pulllunetteforwardthroughthedrawbar

Removefournuts,lodewashersand

earofcasting.

G.

cedrawbarcastingbetweendrawbar

slineupwith holeinextremefrontofcasting.

onechainbevelplate,andpushbolt through

drawbarandrails.Slideotherchainbevel

installandtightencastellatednut.Install and

curethetwodrawbarrails totherear

yinstallingfour bolts,lockwashersandnuts.

etteshankfrontendof drawbarbracket

tlunetteeye ringishorizontal.Installwasher

atrearofcasting.TightennutI nstalland

sembly.Positionparkingwheelassem-

sothatthe holesintheparkingwheelquadrant

nger inlowerbossofdrawbarbracketcasting.

roughhole inlowerbossofdrawbarcasting

adrant.Installandtightenslotted nut.Install

ON.

ctionX,par.27 a(6)through(9).

KANDQUADRANTREMOVAL

Assembly(par.30a).

ForkfromQuadrantandWheel.

ndscrewout setscrewfromforkswivelhous-

velpin andthrustwasherfromforkswivel

nfromslottednut andaxle.Removeslotted

ftfrom forkandwheelhub,takingcarenotto

ewheelfromfork.Removelubricationfittings

wivelhousing.


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KANDQUADRANTASSEMBLING

cedisk wheelinforkandlineup wheel

kprong.Installaxleshaftin forkprongeyesand

enslottednut. Installandspreadcotterpin

ationfitting inwheelhub.

.Slipthrust washeronquadrantswivel

pinin forkswivelhousing.Installsetscrew

screwsetscrewintoforkswivelhousing.Tighten

bricationfitting inforkswivelhousing.

sembly(par.31d).


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em35

36

on37

moval38

allation39

ghtandstoplightwire removal40

ghtandstoplightwire installation....41

ghtandstoplightremoval42

ghtandstoplightinstallation43

TINGSYSTEM(figs.18and19).

diagramshowsthecompletewiringfor

ationoflights andswitches.Thetraileris

ationtaillightsmountedoneoneachsidenear

pperunitofthe left-handlightisacombination

andthe lowerunitisa blackouttaillamp.The

ndlightisablackoutstoplamp,and thelower

p.Eachlighthastwosealedlamp unitswhich

ngthescrewsonthe lightdoor.

helightsis suppliedbythetowingvehicle,

hecableandplugassemblylocatedat thefront

ndof thecable,exceptforwoodbodycargo

ackoutswitchmountedonthe leftsideofthe

dertochangefromservicetoblackoutlights,

nswitchandturn.

TRAILER.Onthewoodbodycargotrailer,the

erminatesatajunctionblockon thefrontsill

nblock,atwo-wirecablecontinuestothe

arsideof trailer.

EMOVAL.

emovenuts,lockwashersandbolts

eofbody,andlet switchhangonwires.

nectelectriccableandfourtaillightwires

witch.

STALLATION.

aterTankTrailers.

WITCHWIRES.Connectelectriccableand

has follows:Connectbrowncablewireto


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TL)andwhitecablewire toswitchstoplight

cabletogroundonrail. Connecttwoblack

er)wiresto switchblackoutterminal(BT).

thoutblacktracers)wiretoswitchblackout

nectred(withblacktracer)orgreenwire

inal(SS)and red(withorwithoutwhite

ilterminal(ST).

WITCH.Positionswitchonleftside ofbody

nstallbolts,lockwashersandnuts. Tightennuts.

r.

WITCHWIRES.Connectwiringharness

Brownwirewithtwo blacktracerstoterminal

acktracerstoterminal(SL). Connecttail

esas follows:Brownwirewithtwoblacktracers

ewithtwoblacktracersto terminal(BS).

cablewiresasfollows:Brownwirewithtwo

ST),whitewirewithtwo blacktracersto

WITCH.Refertoparagraph37a (2).

DPLUGREMOVAL.

d watertanktrailerremoveblackout

esfromterminals(TL)and(SL),alsored

iler,disconnectcablesatjunctionblock

Clips.Removecapscrews,nutsandlock

bleclipstodrawbarandbodyleftside rail.Re-

Assembly.Pulloutelectriccable

DPLUGINSTALLATION.

nkTrailers.

BLEANDPLUG.Secureelectriccableto

wbarwithcableclips,bolts,capscrews,lock

terminalendsthroughholein leftsideofbody

oswitch(par.37a (1)).

BLEANDPLUGASSEMBLYANDWIRING

cableandplugassemblyondrawbarbracket


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hcableclamps.Connectcablestojunctionblock

ownwiretojunctionblockterminal(TL);white

inal(SL)andred wiretotrailerground.From

arnesstoblackoutswitch.Atjunctionblock

wirewithtwoblacktracerstojunctionblock

ithtwoblacktracersto junctionblockter-

OUTTAILLIGHTANDSTOPLIGHT

ctingPlugs.TwistVsturnrightand pull

ugsoutoftaillight sockets.

movecapscrews,nutsandlockwashers

bodyrails.Removeclips.

ch(par.36).

BlackoutTaillightandStopLight

twiresfromswitchandpulltaillightwire

woodcargobody,removetrailerwireharness.


oSwitch(par.37a(l),b(l)).

Refertoparagraph37b (2).

koutTaillightonStopLightWire

aph43aandparagraph43 b.

ngPlugs.Inserttaillightwire con-

sockets,pushandtwist V&turnleft


ackoutTaillightandStopLightAs-

andpull taillightwireconnectingplugsout

wonutsandlockwasherswhichsecureeach

htbracketsand liftoffthetaillightassembly.


aterTank.Scrapepaintoff contacting

ckettoensureproper ground.Linetaillight

ts,lockwashersandnuts.Attachblackwire

er)tobottomof RHlightassembly.Attach

tblackouttracer)totop ofRHlightCon-

redwirewithwhitetracer)(or greenwire)to


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contactplug(blackwirewithorwithoutwhite

t. NOTE:LHlighthasupperrubylens and

stripe.RHlighthasshort upperhorizontal

ong lowerhorizontalblackoutstripe.

pepaintoffcontactingsurfacesoftail-

properground.Line lightwithbracketand

andnuts.Attachbrownwire(withtwo black

l light.Attachwhitewire(withtwoblack

Connectdoublecontactplug(brownandwhite

rs)totop ofLHlightandsingle contactplug

ktracers)tobottomof LHtaillight.NOTE:

nsandlowerhorizontalblackoutstripe.RH

ntalblackoutstop stripeandlonglowerhori-

.

ackoutTaillightandStopLightDoor.

taillightdoorandremovedoor.Pullsealed

ket.

TION.

ushnewlamp unitintolightsocket

securewithtwoscrews.


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eLockRing

Assembly.Removesixstudnutswhich

ewheelandtire assembly.

EMBLYINSTALLATION.

ssembly.Mountwheelonhubandin-

nhubstuds.Tightenoppositestudnuts succes-

wheelonstuds.

OVAL.

eelandtireassemblyflaton floorwith

ecap.Removevalvecoreanddeflatetireinner

avyscrewdriverintheslotprovidedinthe

e tappingtheoppositesideofthe lockring

offwiththetireirons andremove.Stand

andsonoutsideedge,shovethe rimaway

attheedgeoppositethe valvestem(fig.21).

valvestemcomesstraight out.Pullinnertube


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NDWHEELBEARINGS

efromWheel

TION(figs.22and23).

tubeintotireand inflateslightly.Place

ingcarefulnotto pinchtube.Placewheelring

dsoperator.Forceoppositesideofring down

oniron inslotandpry outanddownuntilring

eto correctpressure,55pounds.

MOVAL.

ngbrakeson trailer.Placejackunder

cleartheground.


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NDLE

nWheel

Assembly.Removewheelandtire

rewhubcap.

rustWasher.Pullcotterpin fromaxle

maxle.Removeaxlethrustwasher.

aringsandOilSealAssembly.Pullhub

rdandthenpushassemblybackintoposition

ngconefree.Pullouterbearingconeoff axle

ubanddrumassemblywithinnerbearingand

Assembly.Removesixcapscrews,

utsholdingdrumtohub.Pry drumawayfrom

oneandRollerAssemblyandOil

driftoni nsidefaceofbearingcone,and

ng.


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NDWHEELBEARINGS

ockRing

rBearingCupsfromHub.Placebrass

ringcuptoberemovedandhit firstonesideof

r.Byalternatinginthismanner,thecup will

bore,and dangerofwedgingthecupin the

JUSTMENTS.

ckuptraileruntilwheelis freeofground.

sfullysothatthere isabsolutelynodragon

hubcap.Pullcotterpinfrom axlenut.Tighten

on revolvingwheel,andthenslackoffnutuntil

tterpinholein spindle.Testforexcessiveend

of wheel,restoneendofwheelhub wrench

nd liftupontire. Byworkingwrenchhandle


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NDWHEELBEARINGS

gonefinger onouterbearingcone,excessive

ydetected.Whenadjustmentiscorrect,re-

ut andinstallhubcap,usingwheelhub wrench.

removejack.NOTE:Bearingsareadjustable

toryoperationandlonglife dependonproper

n.

STALLATION.

movealloldgreasefrom insidehuband

eaningsolvent.Dryandplacehubon wood

upsquarewiththebore, havingthesmaller

hatit willbeonthe insidewhencupisin place.

overthecupfaceand driveincupuntilflush

ceold cupoverthenewoneand driveinnew

ghtwiththecupboreflange.Be surethatnew

auseifnot,it willalterthedistancebetweenthe

ntproperreassemblyofthewheel.Swabthe

eralpurposegreaseNo.2.

on hubsothatholesin drumlineup

xcapscrews,washersandself-lockingnuts.

eadtobe insideofdrum.

eandRoller AssemblyandOilSeal.

ndrollerassemblywithdry-cleaningsolvent.

purposegreaseNo.2. Slideinnerbearingcone

ingcupin hub.Insertoilseal anddriveinto

koverfaceuntilflushwithrim ofhub.

ssembly.Removealloldgreasefrom

dlewithdry-cleaningsolvent.Slidehuband

leandpushassemblyintopositionon axle.

neandRollerAssembly.Cleanouter

embly.Dryandhand-packwithgeneralpur-

ter bearingconeandrollerassemblyonaxle

rcupofhub.

ustWasher.Installthrustwasherand

ghtennut.

ssembly.Installwheelandtireassembly

a).


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oval56

allation57

9

(fig.25).

areBendixmechanical11x!3/4inch

ervoequalaction,cablecontrolled.Thebrake

atthefrontof thebackingplatebytheanchor

; attherearby theadjustingscrewandspring;

bythehold-downspringsandpins. Aneccentric

shoeisusedfor adjustmentandisaccessibleat

kingplate.Thebrakesareforparkingpurposes

handleverattachedtotheright-handsideof

blesareconnectedtoabell crankleverlocated

connectedtothehandleverbymeansofa clevis

bly.

ndleveris pulledtowardrearoftrailer,

roughthebellcrankarrangementpull onthe

akewhichrotatesthearmandcam.Thecam

partat theanchorpinandforcesthemin contact

enthehand leverisreleased,theshoereturn

yfrom thedrum,andthecamarmspring pulls

alposition.

evispinsanddisconnectcableclevises

nutsonrearof backingplateone-halfturn.

ricstudsindirectionofforwardwheel

whenwheelsarerotatedbyhand.Backoffuntil

eneccentriclocknuts.

peningcoverplates.


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tighteningbrakeshoe adjustingscrews.

hroughbackingplate.Movehandleendof

rofwheelsuntilwheelsdrag.

firstratchetnotch,pullbrakecables

Adjustcableclevisadjustingnutsuntilcable

hholesinbell cranklever.Insertclevispins.

ns.Tightencableclevisadjustingnuts.

stingscrewsuntiltrailer wheelsarejust

railer wheelwithleastdragcanjust be

akeshoeadjustingscrewontighter wheeluntil

edposition.

openingcoverplates.

ovejack.

LYREMOVAL.

kundertrailer andraiseuntiltires

xleNut(par. 51c,d).

dBrakeDrumAssembly.Pullwheel,

mbly,asa unit,offaxle(par.51e).

evises.Removecotterpinsfrombrake

clevispinsand pullbrakecableclevisesfrom

vecamleverspring(black)shoeanchor

adjustingscrewspring(black).

nSpringandPin.Pushdownhold-down

egrees,andremovecups,spring andpin.

semblies.Liftoutbrakeshoeassemblies

E:Cleanallbrakepartsremovedwithdry-

anddiscardthosepartswhicharewornor

anttoallmovingpartsat factionalcontact

portionofcableandthen pullcablesthrough

exposethatportion ofcablewhichissheathed

onofcableand lubricatefreelywithcable

LYINSTALLATION.

mbly.Insertshoehold-downspringpins

stallbrakeshoesoverpins andmountadjust-

Placebrakeshoesand adjustingscrewinposi-


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of adjustingscrewisin frontofbackingplate

downCupandSpring.Placecups on

hdown,andtwistcups 90degrees,lockingthem

Anchor andCamSprings.Installad-

orspringsand camleverspring.Thesecondary

st alwaysbeattachedtotheshoewhich hides

rakeDrum Assembly.Sameprocedure

sher.Sameprocedureasinparagraph53 f.

rocedureasin paragraph52a.

coverplatesandbrakedruminspection

rpinnuts oneturn.Theupperorsecondary

ceat eachendof0.010inch (0.010-in.feeler

nchorpin towardorawayfromcenterof

ual.Lock anchorpinnutsecurely.Adjust

0.010 inch.Lockeccentriclocknut.Expand

ansofadjustingscrews untilwheelsdrag.Place

notchandpullcablesuntil allslackisremoved.

and insertclevispins.Insertand spreadcotter

ampnuts.Loosen adjustingscrewsuntil

ag. Applybrakeleveruntilwheelwithleast

hand.Loosenadjustingscrewon tighterwheel

ual.Returnlevertoreleasedposition.Install

rplatesandbrakedruminspectionholecovers.

ack.Alsoparagraph55 aandparagraph

AL.

raileruntilwheelsare freeofground.

es.Removecotterpinsandclevispins

o bellcranklever.

Brackets.Removenutsandcapscrews

tsupportbracketsto undersideofbody.Re-

Assembly.Followprocedureinpara-

ollowprocedureinparagraph56d,e,f, g.

uitAssembly.Unscrewcapscrewson

movelock washers,cableconduitbracketand


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ratingcamleverandpull cableandcon-

ngplate.

LATION.

duitAssembly.Insertcableandconduit

ackingplate.Connectcabletooperatingcam

tbracketandbracketsealandinsert capscrew

gplate.Seethatcable conduitisinproper

w.

owprocedureinparagraph57a, b,c.

sembly.Followprocedureinparagraph

ckets.Installbrakecableandconduit

(19)).

.Installcableclevisesonbellcranklever

lland spreadcotterpins.

ustbrakecablesandbrakes(par.57 g).


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63

on64

bodyandframeis carriedontheaxle

pesprings.Thespringsareheldto theaxleby

tassemblies.

econstruction,havingbrakeflangeswelded

thesemi-ellipticaltypeandhave10leaves.

hasaneyeformedat eachend.Thesecond

dfrontend eyeofeachspringasa safety

op leafshouldbreak.Bronzebushingsare

chendasabearingfor theshackleboltand

shackledattherear.Centerofsprings are

ownplateandboltassemblies(fig.26).

(1)).

tings(par.26a(2)).

rolCables.Disconnectbrakecontrol

er(par.26 a(3)).

Bolts(par.26a (5)).

WheelandTireAssembly.Loweraxle,

mblyasa unittogroundandroll outfrom

y.Removefournutsfromspringtoaxle

f boltsandremove.Liftbumperplateand

xle.Liftspringoffaxleandlower springto

rewhubcapfromaxlespindle,

rustWasher(par.51 c,d).

Assembly(par.47b).

gAssembly(par.51e).


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Removefivecapscrewnutsandlock

te.Removefivecapscrews.Prybackingplate

pullbackingplateoff axle.Loweraxletothe

debackingplateontoaxleand position

eslineup.Installfive capscrews,lockwashers

rnately,andevenly.

Assembly.Slidehub assemblyonto

positionon axle.

asherand slottednutonaxlespindle.

sonAxle.Placethesprings inaparallel

sothatspringeyesrest ontheground.Place

ackingplatesandhubsupon thespringssothat

oppositedirectionfromwrap-aroundspring

sition.

Assembly.Installupperspringtieplate

verspringand axlewithplateatbottom.In-

onhold-downboltsandpositionagainstaxle.

olts.Tightennuts andcenterpunch(hammer

eadsatthe nuts.

Assembly.Placetheaxleandspring

withthe wrap-aroundspringeyestothefront

pringeyesinthe frontspringhangersandthe

pringshackles.

ts(par. 27a(15)).

ssemblies(par.48a).

s.Installlubricationfittingsin spring

ollowprocedureinparagraph52a.

MOVAL.

pbodyuntiltensionon springisrelieved.

procedureinparagraph61b,c,d,e.

bly.Removefournutsfromspringtoaxle

gtieboltplate.Lift springuppertieboltplate

ng.Removeandlowerspringtoground.

STALLATION.

Positionspringonaxle withwrap-

of trailer.Installuppertiebolt plateandbolts.


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onbolts.Installnutson bolts.Tightennuts

adsatthe nuts.

ockingandlowerbodyuntilspring

ds.

ts.Lineup springandinstallspring

ar.27a (15)).

gs.Installlubricationfittingsinspring

teboltsthroughfittings.RefertosectionVI.


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RELISTS.

heelcargoSNLG-518

heel,watertank,250-gal...SNLG-527

ubricatingmaterials,recoil

cellaneousrelateditems.SNLK-l

eldingmaterials,gasesand

erepairofautomotive

t,SNLN-19

vicecommand,automotive

clatureListsarelistedabove.

s maintainedasthe

SupplyIndex"OPSI

NS.

850-15

10-580

10-455

10

nitsTM10-550

nanceTM10-525

M10-520

ocedureTM9-1100

M10-540

nsTM10-545

9-1868

icatingandweldingmaterials

the ordnanceTM9-850

ctionsforordnance

ecautions,accidentsTM10-360

sFM5-25

attackFM21-40

oredForcevehiclesFM17-59

n,materialsandequipment.TM3-220


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ningPM21-6

clesAR850-10

quipmentAR850-18

pmentchart,groupG


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s3

el

56

6

84

ng....85

4

4,74,78

e24

26,27

,28

adrant..60

on82

82

82

me

otrailer52

e

otrailer48

nof74

7

el56


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ght

5

rtank65

ght

ght

on...65

ght

65

ght

ght

82

2

otrailer..52

3,82

mbly54

4

ght

mblies53

ents....55

ebolt55

8,69

on61


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adrant..59

ght

ght

otrailer..48

48

y

el

er

9

ght

mblies50

0

el

embly51

51

ght

1

ght

ght

ies.51


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dycargotrailer

e29allocationofmaintenance27

criptionofbody43

61

7loading14

g/access_use#pd-google

Date post:	03-Apr-2018
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Tm 9-883 1-TON TRAILER

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