Tm 9-1783b Allis-chalmers Hd-7w Engine Accessories

8/21/2019 Tm 9-1783b Allis-chalmers Hd-7w Engine Accessories

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P u b l

i c D o m a i n , G o o g l e - d i g i t i z e d

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

a t h i t r u s t . o r g / a c c e s s_

u s e # p d - g o o g l e


http://slidepdf.com/reader/full/tm-9-1783b-allis-chalmers-hd-7w-engine-accessories 2/323 P u b l i c D o m a i n , G o o g l e - d i g i t i z e d

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E

LIS-CHALMERSHD-7W)

onofthe

eAllis-ChalmersManufacturingCompany)

ON

OFMAINTENANCE

........

TCH......................

SYSTEM

ystem

TEM

ystem

P u b l i c D o m a i n , G o o g l e - d i g i t i z e d

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E— MEDIUMTRACTORMl

)ENGINEACCESSORIES

YSTEM

19169-192

-130193-207

208-238

SYSTEM153-172239-261

ystem153239-242

3

52

-167253-256

8-172257-261

NIFOLDANDMUF-

ANDCONTROLS180-190268-293

188268-289

0290-293

NGINE,ANDAIR191-201294-311

197294-304

01305-311

202-203312-313


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tofmanual2

for theinformationandguidanceof

ersonnel.Itcontainsdetailedinstructionsfor

maintenance,repair,andassemblyoftheac-

gine,GM3-71 RC14(usedinthe Medium

HD-7W),supplementarytothoseinTM

nFieldManualspreparedforthe using

ematterandillustrationsareincludedtoaid

orkingknowledgeofthemateriel.Allthe

clutch,fuelandairsystem,coolingsystem,

tionsystem,exhaustmanifoldandmuffler,

dtheengineandair heatersarediscussedin

andequipmentdescribedinthismanual

issuedtothefield, butaremerelyusedhere

lartools.

GEMENTOFMANUAL.

riousmaintenancetermsusedin this

variousmaintenanceoperationsintheproper

insdescriptionandtroubleshootingofthe

sproceduresforremoval,disassembly,main-

mbly,installation,andclutchbrakeadjust-

taina generaldescription,troubleshooting,

spectionandrepair,assembly,installation,

ous unitsoutlinedinthefuel andair

lectricalsystem,lubricationsystem,exhaust

ernorandcontrols,andengineandairheaters

3Atheprocedureforremovalandinstalla-

heengineremovedfromthetractor—was

eprocedurefor removingandinstalling

—withtheengineinthetractor—isex-

sforfitsandtolerances,ifany,aswell as

ntrequiredforeachassembly,arelistedat


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)ENGINEACCESSORIES

ofthisTechnicalManual,listsallStand-

echnicalManuals,andotherpublications

herein.


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





ANCEDUTIESBYECHELONS

e5

ceandrepairbythe crewandother

eterminedbytheavailabilityof suitable

saryparts,capabilitiesofthemechanics,

ticalsituation.Alloftheseare variableand

urecanbeprescribed.

ENANCE.

maintenancedutiesforwhichtoolsand

ortheusing armpersonnel.Otherreplace-

responsibilityofordnancemaintenance

eperformedbyusingarm personnelwhen

thinthediscretionofthecommandercon-

dsasusedinthis listofmaintenancealloca-

s:

ganizationregiments,battalions,com-

dseparatecompanies.

celightmaintenancecompanies,ordnance

mpanies,ordnancedivisionalmaintenance

nceshops.

nceheavymaintenancecompaniesandserv-

cebaseregiments,ordnancebases,arsenals,

s.

cing,cleaning,lubricating,tighten-

ts,and makingexternaladjust-

ssemblies,orassembliesandcon-


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






)ENGINEACCESSORIES

ovingthepart,subassembly,oras-

evehiclesandreplacingit witha

nditionedorrebuiltpart,subassem-

bly,whicheverthecasemaybe.

grepairsto,orreplacementof,the

mbly,orassemblythatcanbe ac-

withoutcompletelydisassembling

bly,orassemblies,anddoesnot

welding,or riveting,machining,

gor balancing.

pletelyreconditioningandreplac-

bleconditionanyunserviceable

embly,orassemblyofthevehicle,

ng,riveting,machining,fitting,

ng,assembling,andtesting,

NE2nd3rd4th 5th

adjust)X

EX

reline)X

EX

nal)—replaceX

al)—replaceX

nalandinternal)—

eviceandreplaceX

aceX

irX

ildEX

trols,radiator—replaceX

trols,radiator—repair..X

eorrechargeX

page12.


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

a t h i t r u s t . o r g / a c c e s s_ u s e # p d - g o o g l e




t'd)2nd3rd4th 5th

rical—replaceX

rical—repairEX

eplaceX

(inserts)—replaceEEX

erts)—replaceEEX

—service(adjust)and

dersleeves—rebuild

X

X

dEX

ne—replaceX

ne—repairX

ssembly,oil—service

ssembly,oil—repair..X

ondition)EX

ce* X

X

dEX

ndreplaceX

ary—serviceandre-

ary—repairX

aceorrepairX

ud(recondition)EX

lowerpan,manifold

eX

eX

viceandreplaceX

pairX

buildX

vice(adjust)andre-

page12.


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)ENGINEACCESSORIES

d)2nd3rd4th5th

uildEX

—replaceX

—repairX

—rebuild(recondition)EX

—replaceX

—repairX

—rebuildEX

eel—replaceX

eel—rebuild(recondi-

ceX

rX

dEX

(external)—replace..X

(external)—repair....EX

(internal)—replace

ceX

d(recondition)EX

,fuel—replaceX

,fuel—repairEX

X

—serviceandreplaceX

—replaceEX

orupper)—repairX

eEEX

placeX

pairX

buildX

aceEX

irX

ildX

eplaceX

epairX

ebuildX

g—replaceEEX

EE X

adjust)X

page12.


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4th5H.

eX

FIRE

tetrachlorideCC14)—

X

tetrachlorideCC14)—

tetrachlorideCC1«)—

S

eplaceEX

epairX

ebuildEX

placeX

pairX

build(recondition)....EX

er—replaceX

er—repairX

k—replaceX

k—repairX

k—rebuildEX

nt—replaceX

nt—repairX

nt—rebuildEX

upport—replaceX

upport—repairX

upport—rebuildEX

r—replaceX

r—repairX

r—rebuildEX

m—service(adjust)

m—repairX

m—rebuildEX

ceorrepairX

dEX

—replaceX

—repairX

—rebuildEX

page12.


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)ENGINEACCESSORIES

h

s,air—serviceandre-

s,air—repairX

dreplaceX

eloil—serviceandre-

eloil—repairEX

eater—replaceX

eater—repairX

viceandreplaceX

airX

AME

ke—service(adjust)..X

ke—replaceorrepair

ke-off—replaceX

ke-off—repairX

ke-off—rebuildX

ng—service(adjust)....X

ng—replaceorrepair....X

ng—rebuildEX

ringclutch,transmis-

external)—replaceX


nternal)—replaceX


externalorinter-

aceX

ir,X

ervice(adjust)andre-

eX

X

dEX

page12.


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AMEECHELONS

rd4th5th

support—replaceorre-

e—replaceorrepairX

gine—replaceX

gine—repairX

X

s—replaceorrepairX

s—rebuildEX

ES

eplaceX

epairX

ebuildEX

placeX

pairX

buildEX

paceX

pirX

bildEX

ol—replaceX

ol—repairX

lassembly—replace..X

lassembly—repair....X

mblies—replaceX

mblies—repairX

—replaceX

—repairX

aceX

airX

7-W,A.C.)—-serviceX

7-W,A.C.)—rebuild

ies)XE

page12.


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)ENGINEACCESSORIES

HELONS

EMBLY

y—service(refill)and

y—repairX

y—rebuildEX

rake—service(ad-

rake—replaceorre-

placeX

—replaceX

—repairX

ceandreplaceX

rX

brake—replaceX

rake—repairX

rontandrear)—re-

ontandrear)—repairX

ontandrear)—re-

X

X

EX

edwillnormallybeperformedintheechelonindi-

eechelonsasindicatedby"E"maybeaccomplished

emergenciesonly.

onisauthorizedtoremoveandreinstallengineand

transferunitcontrolleddifferentialassemblyandother

However,whenitisnecessarytoreplacean item

a neworrebuiltpart,subassemblyorunit assembly,

nasteriskwillnot beremovedfromthevehiclebythe

orizationisreceivedfromahigherechelon.


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5

essofenumeratingthelockwashers

edundercapscrewheadsandunderbolt

earinthetext andmustbepresumedtobe

washersareofaspecialtype,or iftheyare

ice,thisfactwillbe noted.Thesameistrue

over-center,leverengagingtype.Acam

ressureplateandtheactuatingleverspro-

tmenttoassureproperclutchoperation.A

ningonboth sides,isrivetedtoa splined

lutchshaft.All otherpartsoftheclutch

nismandclutchbrakeareboltedtothe engine

epressureplatei sforcedforwardagainst

of thecontrolleverandlinkage.Thistightly

atebetweenthepressureplateand flywheel,

omflywheeltodrivenplate,whichcarriesit

controlleveri spulledallthe wayback,the

toholdthe clutchengageduntilpressureon

moutto releasetheclutch.Aflexiblelubri-

outsidetheclutchhousingto thereleasebear-

earing.


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)ENGINEACCESSORIES

se.

hsleeve

ear

kin

ss.

mbly,

mbly.

embly.

ocking

chalso

haft.

ate

mbly.

ninOperation.

ew pins.

esworn.Installnewleverassemblies.

ks.

usedby

ewick

ectlubri-

e.

ngReplacebearingandinspectwick


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erClutchAssembly

.

MTRACTOR.

e enginefromtractortoremovemaster

Aforremovalofengine.


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)ENGINEACCESSORIES

ngRetainerCapScrews

Removed


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EMBLYFROMSHAFT.

mblyfromshaft.

6-in.

LATE.

ewsandlockwasherswhichholdspring

ringstopressureplate andremovepressure

NG.

wsandlockwasherswhichholdpressure

plateand removepressurering.Removethe

ps.

LEASESLEEVEASSEMBLY.

assemblyfromthebackplate.Remove

sixpins,whichformthe jointsbetweenthe

leasesleevelinks,maybe removed.This

semblyfromtheadjustingring assembly.

ctuatingleversmaybe removedfromthe

y.

LEASEYOKE.

16-in.

wsandlockwasherswhichholdbearing

6-in.wrench)andpressreleasesleeve

eyoke(arborpress).

VER,6-in.

ngbearingonreleasesleeveassembly

earingfromreleasesleeveassembly(arbor

gretainerandfeltring onshoulderof


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)ENGINEACCESSORIES

ScrewsfromPressureRing

emoved


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AssemblyRemoved

AssemblyRemoved


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)ENGINEACCESSORIES

ScrewfromYoke

AIR.

ngshouldbelubricated,afterevery

ithGREASE,generalpurpose(seasonal

te,asthis maygetgreaseonthe clutch

chtoslip.

eworntothepoint wherealladjustment

benecessarytoreplacethedrivenplate

sbeenremovedanddisassembled,clean

ornsleevelinksorlinkpins shouldbe

eevebushing.Ifbushingis worn,

placementbushingsarenotavailable.

uatingleverassemblies.Replacelever

nor rollersarestuckandout-of-round.

Heatcheckscausedfromslipping

utwillnotbe causeforreplacingpressure

badlyscoredorwarped,replaceormachine

vemorethan %6inchfromplateinma-

sembly.Donotattemptto relineplate,

dto drivenplatebyaspecialprocess

edinthefieldor shop.


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





vefromYoke

eseliningsarein twohalvesandheld

ll torelinethisbrakewhenevertheplate

Ifmasterclutchslipsdue tooverlubri-

roil leakingfromengineortransmissioninto

shingoftheclutchand compartmentwillbe

ows:

drainholeatleftrear ofclutch

ecoverandpourabout threegallonsof

y-cleaning,intoclutchcompartment.


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ENGINEACCESSORIES

ckRing

neutralpositionandclutchengaged,

orfiveminuteswithoutdisengagingclutch;

OLVENT,dry-cleaning,outbyremoving

drainhole.Pouraboutthreegallons

LVENT,dry-cleaning,intoclutchcompart-

sbefore.Disengageandengagemaster

engineisrunning;thenstop engineand

aringthoroughly.

anismandlinkagebysplashingabouta

backofclutchassemblyandoverrelease

ltodrainfromclutchcompartment.

arefullywithclutchengaged.Anoilcan

obeused ifclutchlinkagebecomesdry

erate.


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





vefromBearing

.6a).

feltringnext toshoulderonrelease

aringonbearingreleasesleeveassembly

aringlockri ng(fig.10)holdingbearing

y(screwdriver).


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)ENGINEACCESSORIES

veIntoBearing

EVEASSEMBLY.

6-in.

mblyintoreleaseyoke(arborpress)and

capscrewsholdingbearingretainerto

ch).


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ngSleeveAssemblyIntoReleaseYoke

terpinsholdingreleasesleeveassembly

stingringassembly.

CUPS.

sandcupsonpressurering assemblyand

chcapscrewsholdingpressureplateto

gs.4and 5).


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






)ENGINEACCESSORIES

ATE.

pressureplate and,byinstallingthethree

etainersandthree%6-z %-inchcap

her(figs.2and3).

.

TCHONCLUTCHSHAFT.

mblyonclutchshaft.Installslidingblocks

flangetowardbearing.Slip theassembly

etosee thattheslidingblockson therelease

yfitintotheir slotsinthethrowoutyoke.

semblyonclutchshaftwith oilslinger

g.1).

rtoTM9-1783Aforinstallationof

terclutch,wheninproperadjustment,

o55 poundsonthecontrolleverwhen

0to65pounds whenengineisstopped.It

,andlever willlockintopositionwithan

thisactionisnotpresent,orwhenthe pull

ngageclutchdropstoaround30pounds,it

ouldbeadjustedbeforeslippageoccurs.

thereis nobindinginanyof thelinkage.

anyplace,thosepartsor jointsshouldbe

eattemptingtoobtainthecorrectadjust-

tchtoo tightly,asthatwouldresultin

and makeoperationharder.


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





tchCoverPlates

ES.

esbyremovingfourcapscrewsholding

er.

USTINGPOSITION.

olvetheclutchuntiltheadjustinglockis

nhole(fig.15).

GLOCK.

outofslot inbackplate.

.

stingringtoturnring. Totightenclutch,

se;toloosenit,turn theringcounter-

reddirectionanotchat atimeandtest

ngageclutchuntildesiredpullisobtained.


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)ENGINEACCESSORIES

terClutch

otchinbackplate andinstallinspection

MBLY.

eassemblyisa two-piececastingwhich

shaft.The brakeisfacedontheflanged

nthe masterclutchleverispushedfor-

chreleasebearingyokeisforcedback

ssembly,whichstopsthetransmissiongears

Thisyokeshouldcontactthebrakebefore

incontactwiththedash.Thoughrequired

ouldbeadjustedbeforeclutchlevercan

eatatimewhencoversare removedto

dvisableto relineclutchbrakewhennew

chbrakeassemblyisremovedbyloosening

ke totheclutchshaftandsliding the

16).

STMENT,

4-in.


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sterClutchBrakeAssembly

RE.

eadofset screwandaroundtheclutch

H,3/4-in.

wrench).Loosenboltsthatclampthetwo

utchshaft(%-in.wrench).

movebrakeassemblyaheadonshaft

hreleasebearingyokeandbrakemeasures

ALLWIRE.

keassemblytoshaft(%-in.wrench).

6-in.wrench)andinstalllockwirethrough

ers).


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






)ENGINEACCESSORIES

TEM.

sof a120-gallonfuelsupplytank,fuel

ctors.Thefirststage fuelfilterassemblyis

edtothe rightrearfenderunderthe seat.

ers—thesecondstagefuel filter,underthe

el filter,boltedtotheengine.Thefuel

oftheblowerandis drivenbythelower

ctors—oneforeachcylinder—arelocated

yoverthe centerofeachcombustion

thebottomofthefuel tank,and

filter,bythefuelpump.Thefuel isthen

undpressure,throughthesecondandthird

werfuelmanifoldonthesideof thecylinder

hefuelflows—underpressure—tothe

bronzefilterlocatedin theinjector.The

ctor,througha similarporousbronzefilter,

perfuel returnmanifoldandfuelreturn

ontinualcirculationoffueloilhelpsto cool

efuel,and eliminatesairpocketsinthe

scavengingissuppliedby ablower

oftheengine,anddrivenbythe blower

hegeartrain.The blowerdrawstheair

ughtheairprecleanerthencetothe oilbath

leanto thecylindersthroughairintake

s.Theblowermaintainsfromseven to

ei ntheairbox.The scavengingair(fig.60)

by theblowerwhileairintakeportsare

thoroughlysweepsoutall oftheburnt

tvalveports,helpscoolthe internalengine


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S

Diagram

austvalves,andleaveseachcylinderfilled

orthe compressionstroke.

asmallquantityofaccuratelymetered,

bemixed,atthe endofthecompression

irwhichhas beenforcedintothecylinder

omplishedbytheinjector(sectionIVof


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






)ENGINEACCESSORIES

N

em17

m18

PPLYSYSTEM.

malfuelpressureis from20to30

eratingenginespeed.DONOTOPERATE

notwithinthisrange.Whenpressuredrops

ws:

underfueltank ofallwaterandsedi-

filter elementandtestfuellinefrom

absolutelysurethat itisopen.If necessary,

ilter elementwithanewone.When

akecertainthatthefiltercapgasketis inits

kage.Whenstartingengineafterreplacing

e necessarytoopendrainatbottomof

ebeforefuelwillstartto circulatethrough

to seewhetherfueloilpressurecomes

heengineandreplaceelementin second

linesfor obstructionsandleaksandagain

whetherfueloil pressurecomesuptonormal.

lbelownormal,replaceelementin

fuellineconnectionsaretight,eliminating

andpressurestilldoesnot comeupto

dure,thefuelpumpwillhaveto beremoved

ding,oranewpumpi nstalled.

elPressureNormal.Ifthe fuelpres-

angeandtheoperationofengineindicates

gsuppliedto theinjectors,proceedas

e:

nfuellines andfuelmanifoldcarrying

ee thatreturnfuelmanifoldandreturn

strictedinanyway.Tocheckthereturn


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





N

verandlookintotank.Whenthe engineis

shouldbeanampleflowof fuelintothe

dinanypart offuelsystemasoutlined

hs,itis likelythattheporousbronzefilters

torsarecloggedandthe injectorswillhave

.SeesectionIVof thischapter.

PLYSYSTEM.

ackofsufficientairforcombustion

ksmokeissuingfromthe exhauststack.

e blowermaintainsapproximatelyeight

heairboxof theengine,whichissufficient

nandburningoffuel.If indicationspointto

ws:

eethatair inletopeningsarenotclogged

rtrash.

tralair passagetubeinoilbath air

ilfromthe aircleanerwillsometimescol-

strictairflowthroughthistube.

enginerunning,holdhandbelow

logged,noair willbefeltcomingout,and

be removedandcleaned.Thistubeallows

ctsintheair boxtodrainoutif aleak

eaterfuelpumplineor ifengineisallowed

nextendedperiod.Ablastof airwillbefelt

otclogged.


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






)ENGINEACCESSORIES

m19

ORSYSTEM.

emedy

olsoutCorrectcontrolrod adjustment.

s.Inspectfuelsupply,fuelshut-off

p,

er.

rnorAdjustleverandtighten clamp

njectors.

ualizeinjectors.

perfuel.

cefilterelements.

airorreplace.

d.Removecup;cleanandrefillcup

e.

ceprecleaner.

tfuellines.

efromExhaust.

sketsTightenorinstallnew gaskets.

pectairsupplysystem.

ndrain.

njectors.

ualizeinjectors.

orreplaceinjector.

s.Inspectfuelsupplytoinjectors.

ualizeinjectors.

rorreplace.


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





ent28

aremountedinthe cylinderhead,with

lightlybelowthe topoftheinsidesurface

ers.Aclamp—boltedtothecylinderhead

ecessesoneachsideof theinjectorbody—

n awater-cooledcoppertubewhichpasses

Adowelpinin theinjectorbodyregisters

headforaccuratelylocatingtheinjector

helower endoftheinjectorformsa tight

ndthecoppertube towithstandthehigh

stionchamber.

tion.

emodel71 fuelinjector(fig.18)shows

Dieselfuelis suppliedtotheinjectorata

oundspersquareinch andentersthedrop-

p throughthefiltercap.Itpasses through

entintheinlet passageandfillsthesupply

dricalspacearoundthebushing,betweenit

boreof thisbushingisconnectedtothe

nnel-shapedports,andtheplungerwhich

stionchamberoperatesupanddownin the


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






)ENGINEACCESSORIES

ofInjector

onistransmittedtotheplunger bythe

pwardmotionby thereturnspringand

onstrokebythe rockerarm(fig.19).The

dby meansofthecontrolrackandgear,and

chmakesitpossibletovary theamountof

f itsinjectiontosuitthe operatingloadon

chthis rotarymotionoftheplungercon-

sshowninstep(4) below.

werhelixaremachinedintothe lower

espacebetweenthetwohelicesiscalledthe


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





MountingDetails

Adrilledhole inthecenterofthe plunger

cesswiththefuelchamberbelowtheplunger.

fuel fromthesupplychamberthroughthe

ethe plungerisatthe topofitsstroke.Fuel

into themeteringrecessanddownthrough

stheplungercomesdownonits injection

werport. Asitcontinuesdownward,fuelin

ngerbypassesupthroughthe drilledhole

tiltheupperportis closedbytheupperhelix

ngeris nowtrappedandisforcedout

thecombustionchamber.Injectioncon-

esondown,until thelowerhelixuncovers

s permitsthefueltobypassup through

elowerport(fig.20).

upperhelix controlsthestartofinjec-

ontrolstheendofinjection.Foreachdiffer-


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ENGINEACCESSORIES


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





ris rotated,adifferentportionofeachhelix

lowerports.Thisisclearlyshownin E,F,

thefuelrackispulled allthewayout(fuel

dbecausetheupperhelixcoverstheupper

esametimethatthe lowerhelixuncovers

tion.FandG,figure20, showtheplunger

halfload,andHshowsthe plungerposi-

l thewayinandthe injectordelivering

othecylinders(full load).Notethatthe

njectionandtheendof injectionisvaried

s.

trokeoftheplunger,whenbothportsare

tionoftheplungerbuildsup pressureinthe

thatpressureishighenoughto liftthe

18)offitsseat.This permitsthefuel,

osprayout inatomizedformthroughthe

tortipintothe combustionchamber.The

airleakagefromthecombustionchamber

sethesphericalcheckvalveisaccidentally

cleofdirt.Thusthe injectorcontinuesto

orksthroughthesphericalcheckvalve.

ysinconstantcirculationfromthefuel

s,throughthe injectorsandbacktothe

yheatfromthe injectorsandanyair

nthesystemandinterferewiththeaccurate

e operationoftheengine.Woventingor

orinjectorsis,therefore,requiredatany

fterthesystemhas beenempty.Thefuel

roughwhichexcessfuelsuppliedbythefuel

s locatedbesidetheinletopening,andis

herforeignmatterby afine-grainedfilter

neontheinlet side.

ectorcontrolrackisconnectedbya

on acommoncontrolshaft,whichislinked

e(fig. 41).Theseleverscanberotated

rolshaftbytheadjustmentof twoscrews

tingofall injectorracks.

emostimportantandcarefullycon-

e.It mustinjectexactlytherightamountof

hamberatexactlytherighttime. The

hcompressioninthecombustionchamber,


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






)ENGINEACCESSORIES

bemaintainedinclean,first-classcondition

peration.Thesamecareandcleanliness

ervicingtheinjectoraswasgiven itwhen

shouldbeattemptedontheinjectorunless

uiredacompleteunderstandingofitscon-

histextthoroughlydescribestheworking

ruction,andexplainshowtoservicethe

nicmayintelligentlyservicetheinjectors,

s sectionasaguide,timeand expensemay

nit ratherthanattemptingrepairs,espe-

.

ks).

emedy

jector.

alizeinjector.

cetip.

ve.Replacevalveandseat.

ylinder.

.Checkinjectorfilters.

praytip.

ungerandbushing.

(fuelReplaceplungerandbushing.

king.Repairor tighten.

INE.

end,

6-in-

ENCH,open-end,

n.


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





od

ANDHOOD.

end,

n.

ecleaner(two%fi-in.wrenches)andlift

enutsonthehoodhold-downstrapsat each

s outofslot.Removeboltatl eftrear

%6-in.wrench)andlifthoodoff over

MCOVER.

rthoroughlyandremovethecoverby

ewsthatholdthe rockerarmcovertothe

n.

eatthe tank.

ftheinjectorto beremovedandplace

tings topreventdirtfromenteringthe fuel


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






)ENGINEACCESSORIES

neRemoved

AFTBRACKETSANDSHAFT.

H,open-end,V2-m.

V2-in.wrench).Removethetwospecial

rockershaftbrackets(3/4-in.wrench)tothe

thebracketsfromtheshaft.Slidethe shaft

oldthe armsback.Unscrewrockerarms

Whenremovingtherockerarmshaft,

armsandshaft justfarenoughsoshaft can

orcethe rockerarmsbackwithshaftin

therockerarmpushrod.

WRENCH,%6-in.

ectorclamp(%6-in.wrench)andlift

mp.Placesquareendofinjectorremover

torbodyand pryinjectorfromitsseat;at

hecontrolracklinkage.

ANS,containingclean

selfuel(2)


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





ectorClampNut

ectorClamp


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






)ENGINEACCESSORIES

ctorAssembly

ntedinViseJaws


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





LifterInstalled

smantleaninjector,itis absolutely

emelycleanworkbench,inacleanroom,on

sisemphasizedbecausepracticallyallin-

directlytraceabletodirt,grit, orotherfor-

peronthe benchandlay(notdrop)the

selfuelasthey areremoved.Ifmorethan

sembled,keepthepartsforeachinjectorsep-

waysgowiththe samebushing.Thespheri-

individualsets.

SE.

WRENCH,socket,%6-in.

upin visewiththeinjectorbodyvise

ove)thetwofilter caps(%6-in.wrench).

TOP.

e spring(fig.27)andlift springaway

pwithfingersandpressdown onfollower

emovestoppinwith otherhand.Letspring

panofDieselfuel.


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






)ENGINEACCESSORIES

OLLOWERGUIDE,ANDPIN.

e,follower,andfollowerpin,liftasa unit

movefollowerpinandseparatetheseparts,

them)inthe panofcleanfuel(fig.35).

T.

tor,andreinstallinvisewithspray tipend

jectornutwithwrench.Removenutwith

e injectorbody,beingcarefulnottodislodge

rsmallerpartsrestingonthe endofthe

ctorNut

DVALVES.

phericalcheckvalve,checkvalvespring,

ckvalve,flatcheckvalveseat,andspherical

mtheplungerbushing(fig.34).

CTORANDPLUNGERBUSHING.

thenut,andalsoremovesealring. In

smaynotcomeoff withnut.Liftplunger

y.


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





ER,ANDCONTROLRACK.

minjectorbodyvisejaws.Turnoutspacer

nDieselfuelbyaslight shake.Pullcontrol

ANDFILTERS.

s,coppergaskets,filtersprings,andfilter

ody.Thefilterassembliesshouldbereplaced

snotintended,asystemwhichwill notmar

hatthey maybereturnedtotheir original

sremovedfromtheoutletsideis placedon

onthelowersurfaceofthe filterwillbe

henitis againinoperation.

AIR.

anyoftheclose-fittingpartsin the

ed,andifanyof theinternalworkingparts

r damaged,thesepartsareunfitforfurther

torBushing

d.Afterthe injectorhasbeendisassembled

nedinSOLVENT,dry-cleaning,orfueloil,

romdirtby storinginDieselfueluntil re-

Firstcleantheinjectorplungerbush-

njectorservicekit,byimmersinginatank


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






)ENGINEACCESSORIES

leaning,orDieselfuel,andworkingbrush

woutwithcompressedairand againwashin

leaning,wrapcleaningtissuearoundinjec-

atein andoutthroughbushing(fig.29).

Seats.

spectthesmallflat checkvalvefor

atcheckvalveseatsforsmoothnessand

valveseat(conicalsurfaceonlowerside)

andthesphericalcheckvalveandcheck

.CAUTION:Donotattempttoreseatthe

heseatsorvalves.If thevalvesorseatsare

veassembly.Theseatingsurfacesoftheflat

houldbelappedif theyshowdiscoloration.

nga"figure eight"motionoftheparton the

blockis preparedbyusingasmallspot

diumlappingcream,oritsequivalent.

orValveSeat

ineshavingthe number3714929and

assemblywhichisdifferentfromthat de-

ctorshaveacoloredidentificationdisk

odyandcontaina flatvalveandsealassem-

nddifferentlyshapedvalvestop.Alsothe


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





pfor thevalveassemblyisonlyhalfas deep.

ondtypevalveand spraytipassemblyare

partsinthefirst type.Intheevent,therefore,

e(fig.31),arenot available,theentirespray

cedwithan assemblyofthelatertype.

ssemblyare:flat valveandseatassembly,

stop,and spraytip.Relationofpartsin

both typesofspraytipassemblies.

atsurfacecontactwiththevalveseat,

ewassphericalandfitted inasphericalre-

alvewillallowlapping—usingcertain

sphericalvalve,ifdefective,couldnotbe

ecauseofitssize,theflatvalverequires

nsure aperfectlyflatsurfacewhichis

ation.Eitheracast-ironlappingblockora

ass (4in.long,minimum)maybeused.

blestrengthglassisnotsatisfactory—use

the checkvalvelappingfixtureforholding

nsurea flatsurfaceonthevalveandpro-

ingcreamonlappingblock,andplace

enthumband middlefinger,applya

eof thefixturewiththeindexfinger (first

ossthelappingblockina straightline.

oughlycleanthevalveandinspectby

ervedifferencesoflightreflectionasanindi-

valveis perfectlyflat,itwillpresenta uni-

eldtothelightand rotated.

eseat, usingsamelappingblockand

reinlappingas forvalve.

eardwhen"popping"aninjector(par.

phericalvalveisnotproducedbyan in-

ve.

nthefingers(fig.31). Reamtipwith

njector servicekit.Whilereaming,hold

drilldownintotip,press lightly,andturn

carbonor foreignmatter.Afterthoroughly

compressedairto removeanyloosepar-


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






)ENGINEACCESSORIES

LVE

ctorSprayTip

s(fig.32).Cleanthe sixspraytipori-

0.006-inchprobingwire.Beforeusingthe

beremovedfromthewireona honingstone

gset.Blowoutwithcompressedairand

ntheholes.Then washwithSOLVENT,

owoutwithcompressedair.

.

ninjector,theroominwhichthework

anandfreefromflyingdust.The mechanic's

rkbenchandthetools usedmustallbe

orpartsshouldremainina panofclean

yisbegun;then eachpartshouldbepicked

edin theinjector.Caremustbetakenwhen


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





yTipOrifices

riouspartsin theirproperrelativepositions.

panyingthebuild-upoftheinjector,there-

studiedbeforeattemptingtheassembly.

MBLIES.

pandplaceafilter (washerenddown)in

waysusenewfiltersifpossible(par.23 b

achfilter andanevecoppergasketup

hfiltercap (fig.33).Lubricatethethreads

e body.Tightenfirmly.

AR.

ontheinjectorrackaredrill marked

arlymarkedtoothonthematinggear maybe

isrelationshipmustbemaintainedfor

or,sincethe plungeralsobearsadefinite

oldthe bodybottomendup,andslidethe

erendsothe twomarkedteethcanbe

ottomofinjectorbody.Nowhold therack

arksshowandslidethegear intotheproper

k.Thisisdoneby trial.


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






)ENGINEACCESSORIES

,SpringsandNuts


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





gRelativeLocationofPartsin


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






)ENGINEACCESSORIES

PLUNGERBUSHING.

f gear.Insertbushingdownontospacer

guided intoslotinbody.

TORANDSEALRING.

n visewithbottomendup.Clampvise

d orbendrackininjectorbody.Drop spill

Slipnewrubberseal ringoverbushingand

finjectorbody.

ASSEMBLY.

veseat,cupsideup,ona cleanpieceof

eincup,seatingsurfaceup.Coverthese

lveseat,seatingsurfacedown.Nowhold

nddrop inthecheckvalvestop,largeend

pringoverendofstop,and dropspherical

hericalendup.Takethevalveassembly

placeit ontheupperendof thespraytip

ating.Turnassemblyupsidedownand

T.

.WRENCH,injectornut

ornut.Insertcoppertubingthroughnut

in onehand;holdvalvesandtipassembly

oftube overpointofspraytip tohold

ut isloweredoverthem.Retainingholdon

e hand,screwnutdownintopositionwith

tlyto helpguidevalveseatsupinto recess

handuntiltipseatstightly.The nutshould

ouchingshoulder.Donotforcenut evenby

n.Itcan beturneddownwiththumband

Ifshouldersinsidenut strikeedgesofvalves

wdowneasilyasoutlined,itwillhave tobe

centrallylocatedonendofbushing.Tighten

nch).

VISE.

ampagainwithspraytipenddown.

yIN.

ANDFOLLOWERASSEMBLY.

d upintofollowerguide.Installfollower

followerguide.Lineup holesthrough

ertlockpin.


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





gRelativeLocationofPartsIn

mbly


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






)ENGINEACCESSORIES

OLLOWERASSEMBLY.

tospring,plungerendfirst.Head offol-

erboredheadoffollowerguide.

SSEMBLYANDSPRING.

andspringintotopofinjector.Plunger

dinto bushing.NOTE:Flatsideofplunger

ofboreofgearin orderforplungertoenter

TOPPIN.

uide andinjectorbodyforthestop pin.

beneaththelowerendofspring,push

sespring atsametimewithonehand,and

herhand.Thestoppinwill slipintoplace

erguideandinjectorbodycomeinalinement

will belockedinplacebyspring.

e.Holdinjectorflatandturnfrom one

ckshould fallbackandforthbyits own

properlyassembled.

N.

nrebuilt, itshouldbetestedbeforeit is

stest isknownas"popping"theinjector,

poppingtool(fig.36).

ledwithclean

eselfuel

injectorbodyvise,andbymeansof

eanDieselfuelintoone oftheinjectoropen-

heotheropening.Setabeakerunderand

elejectedfrom tiphitsinsideof beaker.

kerandkeephandsawayfromspraytip

Thefinelyatomizedfuelfromspraytip

aypenetratethe skinandbloodpoisoning

olesinspraytip areopen,pushinjec-

onandpresstesthandledownon plunger


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





UNDTIP

R

or

on,repeatingseveraltimes,addingmore

torfilled.Fuel shouldbedischargedfrom

"chirping"soundshouldbeheard while

anner.Donot installinjectorifthissound

ireafewminutesofoperationbeforein-

hirp"willbe heard.NOTE:Ifinjectoris

soundwillnot beheard.Seeparagraph

oidentifynewtype.

ngpressureis satisfactory,considerable

erequiredonthe poppingtoolhandletoopen

ethefuelthroughthesix holes.Ifconsider-

d onthepoppingtoolhandleto openthe

ischargedin a"fog"fromthespraytip, the

oolow.

veleakordribble,wipeor blowallfuel

ownfirmlyonpoppingtoolhandleto the

abouttoopen.(Do notforcevalveopen.)

wnagainstcheckvalvepressure.No

eatspraytip.If "dribble"occurs,check

y.If theinjectordoesnotpassthe above


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






)ENGINEACCESSORIES

tshouldbedisassembled,carefullyandthor-

ornorcorrodedpartsreplaced.NOTE:

njectorunlessunitis entirelydisassembled

tyof dirtenteringinjectorwhenfiltersare

ed,placeshippingcapsoni njectorfilter

nboxprovidedor wrapincleanoiledpaper,

readytoinstallinengine.

n.WRENCH,socket,3/4-in.

NTHECOPPERTUBE.

yregisters withaholein thecylinder

n belocatedinonlyonepositionin the

n place,engagethecontrolrackwiththe

RCLAMP.

rbody,centeringthesidearms ofthe

themachinedrecessesintheinjectorbody,

verthestud withroundedsidedown.Put

mpdownfirmly,usingwrenchwith8-inch

SHAFTANDBRACKETS.

pushrods andfoldtoapproximate

armsandplacea bracketoneachend,

cketstowardrockerarms.Drawbrackets

meholdingrockerarm bracketsloosely

ingabout0.006-inchclearance.

n.

sfromfuelfittingsin headandoninjectors

enthefuelshut-offvalveat thetank.After

heckforleaksbeforeinstallingrockerarm

mustbetimedandequalizedandthe


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





for0.010-inchclearancebeforeengineis

cover;hood,andprecleanerareinstalled.

or injectortimingandequalizing,andrefer

mentofvalveclearance.

JUSTMENT.

stvalveclearanceisimportantbecause

uredevelopedinaDieselengine.Too little

compression,"missing,"andeventualburning

ts.Toomuchclearanceresultsin noisyen-

tvalveclearanceis0.010-inchatoperating

earanceisadjustedbyturningthepushrod

hichchangesrelativetothe lengthoftherod

od totheleftto decreasevalveclearance

ght toincreaseclearance(shortenrod).

pen-end,V2-in.

LINJECTORIsATBOTTOMOFSTROKE.

startingmotor untiltheinjectorplunger

rockerarmdown).

ETWEENROCKERARMANDVALVESTEM.

pen-end,V2-in.

ageandadjusteachpush roduntilthe

nthevalvestem andtherockerarm.

ENCH,open-end,V2-in.

locknut.Checkagaintoseeif 0.010-inch

dbetweenthevalvestem androckerarm.A

onfeelergage.

eachcylinder.

39).

orconsistsofproperlylocatingthetopof

onto thebody,whenitis atthetopof its

84inch,anda specialtoolcalledatiming


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






)ENGINEACCESSORIES

ceAdjustment

ekit)is usedtomaketheproperadjust-

n.

TO"OFF"POSITION.

start.Crankenginewiththestarting

vesofthe cylinderonwhichtheinjectoris

ed.Atthispointtherockerarms havefully

ves.

OSITION.

EWDRIVER,Vs-in.

e timingholeintheinjectorbody.The

uldbeturned totheleftas faraspossible.

a firmdownwardpressureonasmallscrew-

inthetopof thetiminggageshaft.Make

tthe lowerendofthetiming gageshaftrests

dyandis notrestingonthecoppergasket


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





gGage

NG.

ofthetiminggage totherightuntil the

erestssquarelyon theupperedgeofthe

e,whenthetopof theshaftandthetop of

e "C"marksareinline,the correctmeasure-

ackof"flushness"indicatesthedirectionof

ent(fig.38).

g


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






)ENGINEACCESSORIES

gofInjector

pushrod(V2-in.wrench).Adjustthe

ush rodtotheright toshortenit,which

werassemblytocomeup (%6-in.wrench).

eleftwilllengthenthepush rodandwill

uidedown.Asmall allowancemustbe

whichoccurswhenthelocknut istightened.

pushrod(Vi-in.wrench).Thetiming

tlyinline.If theyarenotin line,changethe

emarkslineup whenthelocknutistight


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





.

adjustingthe controlracksofallinjec-

eequal fuelinjection.Accuratetimingof

foretheycanbe equalized.Theinjector

edeverytimeany partoftheengineis

ectthepositionofthe injectororrockerarm

n.

FORWARD(OPEN).

y forwardandpullthrottleback(open)

CREWS.

sontherackcontrolleversand besure

controltubeandthatthe controltubero-

.

NORCONTROLLINK.

ernorcontrollinkandcontroltube lever.

ouldmovefreelyandtheinjectorcontrol

rntothe "NOINJECTION"positionwhen

disconnected.

LRACKANDGEARCLEARANCE.

he topofthegovernorin fullloadposi-

ustingscrewforNo.1injectorin untilthe

roltubeleveris %4inchoutofline withthe

ollink (fig.41).Turntheupperadjusting

othscrewslightlysothe %4-inchspacingis

ACKCONTROLLEVERS.

eragainstNo. 1injectorcontrolrackin

theremainingrackcontrolleversuntil

olleversjustcontacttheinnerfacesofthe

racks.CAUTION:Theadjustingscrews

oo tightly.Iftheyarejust screweddown


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






)ENGINEACCESSORIES

ackAdjustment

ControlRackandGear


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





CONTROLLINK.

rcontrollinkandcontroltubeleverand

allrockerarmcover,startengine,and test

ERATION.

yatbothidling andfullspeed.Ifone

,a "knock"willbeheard.Inthiscasere-

e.Ifenginestillknocksafterequalizinghas

njectorsisnot operatingproperlyandshould

r

follows:


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






)ENGINEACCESSORIES

positivedisplacementvanetype.Itis

heblowerhousinganddrivenfromthe lower

aU-shapedsteelstampingwhichactsas a

toris formedaspartofthe shaftandis

he pump.Thisrotorrevolvesina housing,

ntrictotheshaft.Twospring-loadedvanes,

einsidethe eccentrichousing,thusdisplac-

einlettothe outletport.Twooilsealsare

heinnerendofthe rotorshaft.Oneseal

erpressure;the otherpreventsthelubri-

minggearcompartmentfromcreepingalong

re locatedapproximately%6inchapart.

theron theinnersealfacestheblowerand

esthepumpbody.Adrainholelocatedbe-

o theoutside.

ntalreliefvalveisprovidedin thecover

heinletandoutlet ports.Thisvalveopens

ately60poundspersquareinch,andthere-

rdinaryconditions,butserves torelieve

ncaseanyofthe fuellinesorfiltersbecome

nditsseat alwaysfacetheoutletportin

enthe valveopens,thefuelflowwillbe

thepump.


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





semblyShowingPositionofRotor


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





E—MEDIUMTRACTORMl

)ENGINEACCESSORIES

gLinesfromFuelPump

re.

.

e.

alve.

onnec-

auses,refertoparagraph19.

WRENCH,open-end,7/s-ia

F.

ESFROMPUMP.

.

tlinesfrompump.


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





pScrewsfromfuelPumpwith

elPump


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






)ENGINEACCESSORIES

SealsfromFuelPump

ROMBLOWER.

ump

ewsholdingfuelpumptoblower.Use the

thecapscrewnearestthecylinderblock.

ddrivecouplingforkas aunit.

OVER.


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




ofFuelPumpReliefValveAssembly

ewsthatholdpumpcover,body,and

twodowelsbackintothe pumpflangeand

ket.NOTE:Becarefulnottodestroygas-

body,asgasketsofthesamethicknessmust

pump.

.Rotorassemblycanbewithdrawn.As

fromflange,holdvaneswithfingers.

tbepulledfrom.theseals inthepump

xpandertoolisavailableforguidingthe rotor


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





)ENGINEACCESSORIES

shaftinto inneroilsealof pumpflange

ge)andtap headonshaftwithsliding

peattoremoveouterseal.

E.

ovedfromthepumpcoverwithoutdis-

softhe pumpbybackingouttheretaining

arringout theretainingspring,edge,spring

AIR.

washedinDieselfuelor SOLVENT,

yinspectedbeforereassembly.Theoilseals,

e,shouldnotbe usedagain.Ifthefeather

re damagedinanywaysotheydo notform

haft,either aDieselfuelor lubricatingoil

on eithersideofthepump bodyareof

ducethecorrectclearancefortherotor and

coverandflange.Ifthesegasketsare not

asketsofthesamethickness.Therotor

nspectedbeforereplacementandchanged

cularlytothewipingsurfaceofthevanes

e pumpbody.

ectlyon thecast-ironflangeandcover.

eflange,cover,androtorshaft shouldbe

tches,orburs.Theclearanceoftheshaftin

If clearanceisincreasedabovethisfigure,

pumpwill notoperate.Completepump

ecessarywhenshaftorbearingsurfacesare

otformatight sealwithitsseat,no at-

p thevalveortheseat. Usenewparts.

seal

reWRENCH,%6-in.

H,%6-in.


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




wofFuelPump

gtowardpump body,startouterseal

enheadof oilsealreplacingtoolontoseal,

wardouter seal.(Shortportionofheadis

henitis installed(fig.43)).Thenslide

danddriveseal intoplacedowntightinto

thammerandoilsealtools).Position inner

dawayfrom pumpbody(fig.43).Then

nd drivesealintopositionasshownin

fthedrivenheadwilllocatethis sealthe

uterseal,whichwasfirst drivenintothe

thedrivenhead.

OOLS,guidepin

rticallyinbenchvise.Setpumpflange

ture(fig.52)and placethetwoguidepins

ceapapergasketinpositionon theface

acethe pumpbodyinpositionoverthe


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






)ENGINEACCESSORIES

erOilSealin FuelPump

MBLY.

vanespring,andvanesin therotorand

ers.Placethe oilsealpilotoverthe square

icatepilotwithcleanengineoil,andwhile

positionon therotor,inserttherotor into

.


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





SealPilot inPosition

nplacethe pumpcoverovertheguide

odyboltsanddrawtightwith fingersonly.

pinsanddrivethe twodowelsintoplace

tobody bolts.Turnthepumpshaftby

erotorshouldturnsmoothly,witha slight

orhavetightspots.

EASSEMBLY.

;the seat(seatingsurfaceout),valve

g,cage,retainingspring,andretainingscrew

n.

LINGFORKONPUMP.

t)onthe squaredouterendofthepump

keton thepumpsupportflange.

heblowerrear endplatecover,engaging

s ofthecouplingdiskonthe lowerblower


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






)ENGINEACCESSORIES

orShaftThroughOilSeals

PumpBodyandCover


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





markingonthepump bodyshouldbe

Securepumpto blowerendplatecover

apscrews.

TOPUMP.

.

uelsupply tanktothefittingon "IN"

ondlinetotheotherfitting.

.

fuelor airleaks.Airleaksareindicated

irbubblesinthe fuelcomingfromthe

rworkingonthe fuelpumpareas

OOLS,oilsealremoving

acing


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






)ENGINEACCESSORIES

bly41

embly42

mbly43

ationofDieselfuelthroughtheinjectors

ol.Thefuelpumpcirculatesapproximately

rthroughtheinjectionsystem.Ifthis quan-

andget toolow,thereisa possibilityof

ctorsbecauseofoverheating.Asthefuel

equantityoffuelcirculatingthroughthe

maybereducedtothe pointwherethein-

gerouslyoverheated,eventhoughthisflow

heengineoperatingnormally.Therefore,

eenginedoesnotnecessarilymeanthat

ated.Forthis reasonthefuelfilteringsys-

dthefilter elementreplacedatthefirstindi-

mnormalfuelpressure.Allfuel filtersare

ttype.

TERASSEMBLY.

gefuelfilter assemblyissuspendedon

t rearfenderundertheseat.A fuelline

to thisassemblyandanotherleadsfrom

Acottonwoundelementisusedin this

H,open-end,ys-in.

n.

n.WRENCH,open-end,Vs-in.


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




306130

ofFirstStageFuelFilterAssembly

tankanddisconnectthefuel linesfrom

offuelfilterassembly(3/4-and7/a-in-

mTractor.

n.

wswhichholdbrackettorearfenderand

y.

wswhichholdheadtoclampring and

egasket.

thedirtyorcloggedelementandclean

eanDieselfuel.Replaceoldelementwith

empttocleandirty orcloggedelement.

gedbyremovingthehousingfromthe head

reassembly(fig.55).

erheadbyinsertingfourV4- x1-inch

ndintoclampring.Use newgasketand

et.


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





)ENGINEACCESSORIES

rstStageFuelFilterHousing

.

6-in.

n.

ctor.

n.

fender withtwo

uelFilter Assembly.

n.WRENCH,open-end,Va-'m.

chend fittingoffuelfilterassembly(%-

nfuelshut-offvalveunderfuelsupplytank

FILTERASSEMBLY.

of thereplaceablecartridgetype

owl.Theelementconsistsofareplaceable


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




gFuelLinefromSecondStage

.

.

outletfuellines.

mCowl.

chholdmountingbandsto cowland

y.

dBolts.


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





)ENGINEACCESSORIES

NSCREW

MP

wofSecondStageFuelFilterAssembly


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




mountingbandsandslidethemoff fuel

ment.

hold-downscrew,andremoveitwiththe

andliftelementfromhousing.Remove

usingoutwithcleanDieselfuelbefore

ethatdraincockis notclogged.Thisdrain

erydaytodrain sedimentandwateroutof

ementonly,thefilterassemblyshouldbe

and onlythehold-downclampandcover

ntinhousing.Placecoverandnewgas-

slots,andtightencoverinplacewithhold-

ngbandsonfilterandinstallthe two%fi-x

ten bandsaroundhousing,asitmaybe

por downonhousingwhenmountingiton

H,open-end,Va-in.

blyon Cowl.

H,open-end,%-in.

roughmountingbandsand cowland

bolts throughmountingbands(V2-in.

boltsthroughcowl(two%6-in.wrenches).

.

enthefuelshut-offvalveand fillthefil-

crankingenginewithstartertopump fuel

valveand connectupperfuelline.Reopen

eckforleaks.

TERASSEMBLY.

mountedto thecylinderhead.Itis

tridgetype.Thefuelline runningtothefuel

othetopof thisfilter.Fuelleavingthisfilter

manifoldand totheinjectors.


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





)ENGINEACCESSORIES

ofThirdStageFuelFilterAssembly


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




rdStageFuelFilterHousing

n.

.

omthefittingson fuelfilterhead.

sing.

draincockatbottom.Removecap

toheadandremovehousingand element.

elementfromhousing.

d.

ndtakefilterheadfromcylinderhead.


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





)ENGINEACCESSORIES

usingwithcleanDieselfuelafterre-

elementandhousingmayberemovedand

outremovingthefilterheadfromtractor

uppliedwitheachnew element.Fillcase

allinghousingon filterhead.Opendrain

ntandwaterfromfilter.

H,open-end,7s-in.

dwith two%-x1-inchcapscrews.

elementinthehousingwiththe end

hecasewithfuel. NOTE:Twointer-

elementaresuppliedforuse inthethird

ottonwoundtypesimilartothefilter elements

filterlocatedunderthe seat.Asteelwasheris

eelements,andwhenthis typefilterelement

be placedonthehollowstudinside thefilter

ntandsmallergasketareinstalled.The other

aspecialfiltercompositionandrequiresno

headandontopof element;install

eranddrawcaseupto head(fig.59).

n.

ondstagefuelfilterto frontfittingofthird

omintakefuelmanifoldtorearfitting. Con-

tting ontopoffuel filter.Openfuelline.


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




aintenance45

mbly46

veassembly.-49

50

ssembly52

assembly53

fresh airneededforcombustionand

clearofexhaustgases.Its operationissim-

oilpump.Twohollowrotors—eachwith

verycloseclearancesinahousingboltedto

providecontinuousanduniformdisplace-

saremadeina twistedorhelicalform(fig.

nlet fromtheaircleaneris pickedup

thedischargesideofthebloweras indicated

continuousdischargeoffreshairfrom

essureof abouteightpoundspersquare

thecylinderblockwhentheengineis oper-

Astheintakeports atthebottomofthe

8degreesbeforebottomdeadcenter,thisair

ylinder.Theseportscloseat 48degrees

Theangleofthe portsinthecylinderliners

he intakeairasit entersthecylinder.This

utthecompressionstrokeandimprovescom-


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





)ENGINEACCESSORIES

nofEngineShowingCirculationofAir

edriveendofthe rotorshaftsspace

htclearance.Thus,becausetherotorsdonot

me,theyrequire nolubrication.Highlyef-

akageattheends ofthelobesandalso keep

gthetiminggearsandrotorshaft bearings

mpartment.Theupperrotoris drivenat

ythe blowerdriveshaftandthelowerrotor

otorthroughtheblowertiminggears.The

totheblowerdrivegearpreventsthe trans-

onstotheblower.It isformedbyanellip-

ndlesof leafspringswhichrideonfour

Eachrotorissupportedonthedoweledend

gby asingle-rowradialballbearingat the

aded,radialandthrustball bearingatthe

eblowergearsandbearingsarelubri-

ainsfrom thevalveoperatingmechanism

hecamshaftpocketsinthecylinderblock.


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




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





)ENGINEACCESSORIES

rtainlevelinthepockets,itoverflowsthrough

owerhousing,providinglubricationforthe

nd andgovernorandwaterpumpdrives

lowerendplate covermaintainsanoil

eteethofthelower rotortiminggear.A

of thelowerrotorthrowsoilinto thegov-

rplusoilpassesfroma holeintheend of

hroughdrilledholesin thecylinderblock.

NONMAINTENANCE.

catedevice.Nevertheless,greatcare

ssembledatthefactory.Thesamecare

ebloweris servicedinthefield.

oregoingdescription,theblowerrotors

ncebetweenthelobesandalso betweenthe

ng.Bearingsareused ateachendofthe

sealsareusedbackofeachbearingto pre-

erotor compartment.Selecteddouble-row

erendclearancebetweenrotorsandend

re"timed"bythe twogearsattherear end

mingorspacingmustbecorrect;otherwise

tweenrotorlobeswillnotbe maintained.

esadecreaseof rotor-to-rotorclear-

flanksoftheupperrotor lobesandthetrail-

lobes.Clearancebetweentheopposite

ncreasedcorrespondingly.Whilerotorlobe

edbyadjustment,gearbacklashcannot.

veworntothepointwherethe backlashex-

rsshouldbechanged.Theprocedurefortim-

rclearancebetweenlobesis outlinedunder

ntpartthe blowerplaysintheefficient

ine,aninspectionof theunitshouldbe

hours.Ifthis practiceisfollowed,minorir-

detectedandcorrectedbeforemoreserious

wermayfailtofunctionproperlybecauseof

ofthefollowingreasons:

avingbeendrawnthroughtheblower,

obesandhousing.

nglubricatingoil tobedrawnintorotor

P u b l i c D o m a i n ,

G o o g l e - d

i g i t i z e d

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

a t h i t r u s t . o r g / a c c e s s

_ u s e # p d - g

o o g l e



pling,causingrattlingnoiseinside

ngearteeth,or damagedbearings,

rotorlobes,rotors,andendplates,andbe-

e totiminggearwear,thematingrotor

entclearanceatonesideand toomuch

side(fig.81).

WERASSEMBLY.

termineifany oftheconditionslistedin

blower:

ROTORS.Dirtorchipsdrawnthroughthe

atchesintherotors andhousingandthrow

ons.If burscauseinterferencebetween

g,the blowershouldberemovedfromthe

owntoeliminateinterference,orrotors

d.

kyoilsealsareusuallyindicatedbythe

werrotorsorinsidethehousing.Oil onrotors

ull-overfromoverfilledaircleaners;there-

ouldnotbe confused.Tocheckforoilseal,

otorcompartmentandobserveendplatesfor

ateawayfromaleakyoilseal (fig.61).

E.Awornblowerdrivemaybedetected

irmlyandattemptingtorotate.Rotors

tos/8 inch,measuredatlobecrown,witha

eased,rotorsshouldmovebackatleastV*

couplingshouldbeinspectedifrotorscan-

boveor ifrotorsmovetoofreelyor canbe

vecouplingtobeworn,the blowerdrive

hdrawnfromthefrontof thecylinderblock

as beenremovedfromtheengineandthe

nderblockendplatecapscrewsremoved.

SORDAMAGEDBEARINGS.Iflooserotor

gsarecausingblowerdifficulties,suchcondi-

bbing andscoringbetweencrownsofrotor

ts,betweenrotorsand endplates,orbe-

Generallyacombinationoftheseconditions

ycausesrubbingbetweenrotorsand end

bearingswillcauserubbingbetweenmating

orperhapsallowrotorassembliestotouch

tionwillusuallyshowupat endofrotors


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e




)ENGINEACCESSORIES

ed.Excessivebacklashinblowertiming

or lobesrubbingthroughouttheirentire

econditionscitedin previousparagraphs,

edfromtheengine andeitherrepairedor

TOR,

end,%-in.

open-end,3/4-in.

nd,Vs-in.

NCH,socket,V2-in.,

extension

H,socket,s/s-in.

NCH,socket,3/4-ia

n.

ANDHOOD.

end,%6-in.

ecleaner(twoyifi-in.wrenches)and

thenutsonthe hoodhold-downstrapsat

ybolts outofslot.Removeboltat leftrear

%6-in.wrench)andlifthoodoff overex-

TFENDER.

ecapscrewsandlift offfender.

ANDFUELLINES.

n.WRENCH,open-end,7/s-in.

ump.Cleanalldirt andgreasefrom

andblowerdriveassembly,governorassem-

ne.Disconnectfuellinesfromfuelpump

.

MCOVERANDGOVERNORCONTROLHOUS-

n.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



nletElbowand InletHousing

ecttwogovernorcontrolrods(pliers).

emoverockerarmcover.Removefour

ousingcover(screwdriver).

CONTROLLINK.

nktoinjectorcontroltubelever.Remove

kfromdifferentialleverongovernorand

head(fig.166).

CONTROLHOUSINGASSEMBLY.

NCH,%6-in.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e




)ENGINEACCESSORIES

topofgovernorbreathertube(screw-

clipatbottomoftube. Removetwocap

rolhousingtocylinderhead andfourcap

usingtogovernorweighthousing(%6-in.

controlhousingassembly(fig.165).

BOWANDAIRINLETHOUSING.

NCH,%6-in.

dofair inletelbow(screwdriver).Re-

ingairinlethousing toblower(%fi-in.

elbowandhousingassembly,togetherwith

lethousingandblower.

PUMP.

NCH,socket,V2-in.,

omwaterpumpoutletpackingflange

oseclampatconnectionbetweenwater

driver),andsliphoseconnectoruponto

SEMBLY(WITHGOVERNORWEIGHT

ANDFUELPUMPATTACHED).

whichholdblowertocylinderblock;raise

to clearwaterpumptooilcoolerconnec-

forwardandawayfromengine,withdraw-

mdrivecoverpackingondrive gearsup-

ear drivehubattachedtoblowerupper

utionnotto bindblowerdriveshaftwhile

E:Ifengineisremovedfromtractor,itis

erdriveshaft coveronflywheelhousingand

hrough openingbeforeblowerismoved

RIVEASSEMBLY.

H,open-end,3/4-in.

NCH,open-end,7/s-in.

6-in.

mcylinderblocktoblowerdrive bearing

ecapscrewholdingtopofoilgagerodtube


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



),disconnecttubeatlowerend (3/4-and

oveoilgagerodandtubeassembly.Re-

fourboltsholdingblowerdrive assemblyto

te(two%(-,-inwrenches),andpullassem-

housingandcylinderblockend plate.

ESFROMBLOWER.

attachingfuelpumptoblowerrearend

elpumpandcoupling.

open-end,1/2-in.

holdingpumptoblowerfrontendplate

thhammertoloosenit andremovethe

ghtHousing.

tachinghousingtoblowerfrontend

governordriveshaftfromupperblowerrotor

d.

OWER.

7/j6-in.

/2-in.

NCH,»/16-in.

WRENCH,3/4-in.

CH,hexagon,3/ltt-in.

1).

OVERS.

V2-in.

eachendplatecover(V2-inwrench)and

E:Donotprybetweencoverandendplate

amaged.Taploosewith softhammer.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e




)ENGINEACCESSORIES

PDRIVECOUPLING.

n.

tcenterandfrontendofblowerl ower

ouplingand removewaterpumpdrive

HUB.

V2-'m.

tachinggeardrivehubtorear faceof

V2-in.wrench)andtapflangefreefromgear

SFROMCENTEROFBLOWERTIMING

eciallockwasher,andretainingwasher,

ggearin placeatthecenter.Thelower

lybyacapscrew,speciallockwasher,and

k.

S.

ventturning.Thetwotiminggearsmust

haftsatthesametime.Backoutpuller studs

ssible.Installtwoanchorbolts throughdia-

npullerplatesandinto timinggearssofaces

gearfaces.Turnthetwopullerstuds uni-

drawgearsfromrotorshafts(fig.63).Note

himsoneachrotor shaft,ifanyareusedbe-

sfromshaftsandkeepin orderforre-

FTBEARINGRETAINER.

ateachbearingandremoverotorshaft

ndsof blower.

ANDROTORS.

CH,V2-in.

NCH,s/s-in.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e



owerRotorTimingGears

unkfillisterheadscrewsfromfrontend

ountersunkfillisterheadscrewsin rearend

rewdriver).

pullerplateasfar aspossible.

bolts inthethreeequallyspacedholes

ewanchorbolts inholesfromwhichbear-

reremovedonrearend plateandscrewin

allel withfaceofblower(Vi-in.wrench).

dsuniformlyclockwiseandpushrotor

rend plate(s/8-in.wrench).Frontplate—

bledin bearings—willbepushedaway

metime.

rendplate.Removethetwo fillister

npullplatefrompositionbyhand.With-

ate assemblyfromblowerhousing,if

torsarescored,removefrontendplatefrom

drawingrotorsinthesame mannerandwith

rremovingrearendplate.


G o o g l e - d

i g i t i z e d

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


_ u s e # p d - g

o o g l e




ENGINEACCESSORIES


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





werRotorShaftBearings

FTBEARINGSFROMBLOWERENDPLATES.

hoilseal frominnerfaceofblowerend

olentersborein innerraceofbearingand

stfaceof bearinginnerrace.Supportend

ttwoinchesoffbenchand,using hammer,

n(step(9) below).Followthismethodon

SEALSFROMBLOWERENDPLATES.

OCKS(2)

me.Iftheleatherhas beenscoredsothat

possibleorthe leathershavebecomecharred

be replaced.Ifchangeisnecessary,remove

t thesametimetheindividualbearingsare


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






)ENGINEACCESSORIES

WasherRemoved

b

ER

S

owerDriveCouplingHubandGear


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





ivingGearHubfromSupport

ontinuingtodrive downonthetool(fig.

tsonand forcessealdownandoutofplate.

RDRIVEASSEMBLY.

n.

VEGEAR.

hichallowthedrivecouplingretainer,

vegearto beseparatedfromthedrivegear

HUBFROMSUPPORT.

n.


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






)ENGINEACCESSORIES

veCoverPackingfromSupport

ammerandchisel)andremovelocknut

her,thrustwasher,and"jjo-inchsteellock-

b.Removehubfromsupport.Remove

outsideofsupport(screwdriver).

LINGCAMANDSPRINGS.

mmerdrivecouplingcamfromsprings

Removethe21 drivecouplingsprings

eachside ofdrivecouplinghub.

WERPARTS.

ndisassembled,allparts shouldbe

,blownoffwith drycompressedair,and

y.

sbyrotatingthembyhandin clean

greaseandforeignsubstances.


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





DERTOOL

emoveBlowerDriveCouplingCam

esbydirectingairthroughthe bearing

yhand.Donotspin thebearingwithair

aningoperationtobesure allforeign

hly,againrotatebyhandandinspect

gshouldrun freeandshownoindication

rowbearingsarepreloadedandhavenoend

rowbearingwillseem tohaveconsider-

whenrevolvedbyhand.

in endplatesandreplaceifnecessary.

ed shouldbelubricatedwithcleanengine

blower.Newoilsealsshouldbesoakedfor

anOIL,lubricating,engine,SAE10,before

werrotorlobesforsmoothness.Inspect

urfacesforwearor burs.

platefinishedfacesaresmoothand

of blowerhousing,whichreceivetheend

m burs.Theendplatesmustset flatagainst

arsforwear.


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






)ENGINEACCESSORIES

trevolveinsidethe blowerhousing

betweenthehousingandrotorlobes.Inspect

oseethatthe surfacesaresmooth.Inspect

eshavenotbeenincontact.

ER.

blowerservice

ws:WRENCH,%6-in.

-in.

4-in.

xagon,%6-in.

en-end,V2-in.

NCH,socket,V2-in.

erto figure71forrelativepositionof

LOWERENDPLATES.

CH,3/4-in.

sembledintotheendplateswiththe flat

er,finished faceofplates.Thesealing

towardrotor bearings.Proceedasfollows:

eensoftjawsi nbenchvise.Backout

sfaras possibleandpushstudthrough

tefromtheouterface,restingpuller plate

erendplate.

athertowardbearings,slidesealover

obearingborebyhand.

body nexttoheadofpuller stud.Turn

in.wrench),forcingoilsealintoseatuntil

ainstinner faceofblowerendplate.Remove

ofseals insamemanner.

ONTENDPLATE.

IVER,8-in.

ybeidentifiedbytheflangewhichextends

usingandprovidesareston topofthecylin-

semicircularatthetop(fig.73) andisalso


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





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






)ENGINEACCESSORIES

werOilSeals

bedside.Blowerendplatesare inter-

r,buttheplateat thefrontendofthe blower

eblowerhousingfirst. Therearplateshould

orsare inplace.Whenviewingblowerhous-

dplateforthefront willbeassembledtothe

Withtheseidentificationsclearlyinmind,

d ofblowerhousingasfollows:

n dowelholesofblowerhousing.Tap

ywitha softhammertofitend plateto


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





ING

EARS

ateandOilSealLocations

sareusedbetweenendplatesandhousing;

smustbeperfectlyflatandsmooth.

usingwithtwofillisterheadscrews

shers.Inspectandseethatdowelsproject

eofendplate.


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






)ENGINEACCESSORIES

AR/

ofUpperandLowerBlowerRotors

ARTS.

ftheblower,certaincheckingoperations

eproperrelation ofparts.Thelobesonone

e teethononeofthe timinggearsforma

ematingparts aleft-handhelix.Therotor

ustbe usedwiththegearhavingright-

eversa.Rotorandgear withright-hand

For convenienceinblowertiming,one

veendofeachblowershaftwith corre-

gearhubs.Gears mustbeplacedonthe

nesurfacesin registration.Rotorsmustbe

edsplinesurfacestowardtoponboth rotor

nfusionwhenassembling,placetheright-

geartogetheron bench;likewisetheleft-

bovein mind,proceedwithassembly.

TOHOUSING.

ershortendof eachrotorshaft,andwith

spline surfacestowardtopofblowerhous-

g.Removeoilsealpilots.


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





owerRotorsintoHousing

ARENDPLATE.

ousing,install oneoilsealpilotover

t. Installrearendplateoverpilots, lineup

ntoplacewith softhammer.Secureplate

crews.Nolockwashers.Removeoilseal

dowelsproject3/8 inchbeyondouterface

dateendplatecover.

TFRONTBEARINGS.

eusedatthe frontendoftheblower

owballbearingsatthe rearend.Thebearing

faceof theballraceonly.Whenassembled,

owardtheoutsidefaceof theendplates.Start

tofrontendof rotorshafts.Usingspecial

hammer(fig,76),tap bearingsintoseatin

etainersforsingle-row(front)bearings


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






)ENGINEACCESSORIES

NGLEROW

ATESFOR

erRotorShaftBearings

meter;andfordouble-row(rear)bearings,

Installfrontbearingretainerswithflange

erdirectedtowardbearing.Securewith

rews(%fi-in.wrench).

TREARBEARINGS.

,7/i6-in.

bearingsthesamewaythefrontswere

geatinnerdiameterofretainer isdirected

eretainerswiththreeVi-x3/4-inchcap

fi-in.wrench).NOTE:Rotor-to-endplate

ckedatthistimeasexplainedin step(10)

S.

mbled,specialpullerstudshimswereno

perhaps both,blowertiminggears.They

originalpositionsbeforepressinggearsonto

fts areused,installwithoutshims,anduse


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





ngGearsOntoRotorShafts

entimingrotors.Start bothgearsontotheir

ollowingpoints.Bothrotor shaftshavethe

wardtopofblower.Thetiminggear withsix

atedontheupperrotorshaft.The original

espectiveshafts.Theomittedspline sur-

thegearborearematched( fig.74).NOTE:

entedinto endofshaftunderomittedspline

ggearsproperly.Applysomelubricating

proceedtopressgearsontoshaftsas follows:

s ofpullerstudsinto endsofshafts,

ernut pressthegears(keepingonegear

osition tightagainstbearingfaces.

ull gearsintoplace,andinstallspecial

feachcap screw.Besurethatretaining

ercedlugs toengageslotsingear hub;then

erwillengagetheslotsin theretainingwasher.

obestopreventrotationanddraw capscrew

nstallspeciallockwasherand fuelpump

solocktangs ofdiskengageslotin gearhub

esslotin couplingdisk.Drawcapscrew

noughtobend fuelpumpcouplingdisk.


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






)ENGINEACCESSORIES


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





S.

RENCH,3/4-in.

ws:

owerrotor formahelixwithrespectto

rshaft.Theteethonthe timinggearsare

ed,therotorwiththe right-handhelicallobes

right-handhelicalteeth.Theblowerrotors,

nthehousing,runwith aslightclearance

earancemaybevariedbymovingoneof the

outontheshaftrelative totheothergear

emovingshimsbetweenthegearhubsand

ndthe gears.Thispositioningofthegearsto

etweentherotorlobesiscalled"blower

onsideredfromthegearend,movingthe

cestheupper rotorslightlycounterclock-

errotor.Movingthelowergearoutadvances

nrelationtothe upperrotor.Theclearance

entheleadingand trailingsidesofindividual

globes.Proceedas followstocheckrotor

nrotorlobesmaybecheckedwithvarious

2inchwide.Whenmeasuringclearances

natedfeelersmadeupof0.002-inch,0.003-

-incharemorepracticalandsuitablethanone

asurementofclearancebetweenrotorlobes

e inletandtheoutletside oftheblower.

.004-inchto0.006-inchclearance

fthe upperrotorandtheleading sideofthe

edfromboththeinletandoutlet sidesof

kclearancebetweenleadingsideofupper

otors,"C",foraminimumof0.012inch(fig.

nceshouldbeheldasan absoluteminimum,

dheredto whenusingnewrotors.Measure

dandatcenterof rotors.

kofeithergear willrevolvethatrotor

minedtheamountanddirectiononerotor

cetheproperclearance(sameas thickness

msbackof eithertheupperorlowergear


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






)ENGINEACCESSORIES

kingClearance"C"

ckingClearance"CC"


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





onofShimstoCorrectRotorClearance

ult.Whena changeinshimsisrequired,both

he rotors(par.48b(5)). Installthere-

backoftheproper gear,andagainpressgears

kclearancesbetweenrotorlobes.

LEARANCE.

ws:

eenendsofrotors andendplates.This

medattheends ofeachlobe,making12

rtoclearances(par.55).Ifend clearances

use shimstoincreaseclearanceandma-

decreaseclearance.

ARDRIVEHUB.

per blowertiminggearwithsix%6-x


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





)ENGINEACCESSORIES

ernorWeightHousingonBlower

PDRIVE.

n.

pump intermediateshaftandcoupling

orshaft.Holdcouplingtightagainstendof

rscrewsecurely.

OVERS.

dplatecoversandattachone toeach

6- xSVi-inchcapscrews.

ONBLOWER.

mpflange.Setpumpassemblyupagainst

over,beingsure thatthecouplingfork

ouplingdiskdrivingplate.Theforkwill

pumpflangesets tightupagainsttheblower

besurethat thesideofthe pumpcover

cylinderblock;thensecurepumpto blower

pscrews.


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




EN1

G

.


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





)ENGINEACCESSORIES

PONBLOWER.

n.

rpumpflange.With intakeelbowof

ttomofblower,placewaterpumpinposi-

lowerrotorshaft,withdrivinglugs onpump

withdrivinglugsof couplingonblowerrotor

hthree%6-x ys-inchcapscrews.

WEIGHTHOUSING.

gflangeof governorweighthousing.

plinesat frontendofblowerupperrotor

dplatecoverwithsix %fi-x%-inchcap

erhasbeeninspectedandrepaired,cover

andfastenpaperontokeep anydirtout

ermustbecleanand freeofdirtwhen

ERDRIVEASSEMBLY.

ringspreader

V2-in.

CH,1ys-in.

ws:

3).

DRIVECOUPLINGSPRINGSANDCAM.

bspringsupporton twoblocksofwood

hold theleavestogether,andslidetwo

f21springseach,intodrive couplinghub

endsofeachspringpack.Locatespring

willseti ncorrespondingroundedgroovein

moverend ofspringspreadertool;then

packsuntilloweredge ofcamrestsonblocks


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




S

erDriveCouplingCam

UB.

on outsidediameterofdrivegearhub

tobearingfromrearof bearingsupport

gearhub,andslidethrust washerin

iameterflatfaceof washernexttothrust

yinsertingbolts intwoholesin huband

a newlockwashernexttothrustwasher

.wrench).Bendearsoflockwasherover

ening(hammer).

ANDCOUPLINGRETAINER.

V2-in.

(softhammer)withflatfinishedfaceof

pport.Theouterendof thecamiscounter-

insidediameter.Withthiscounterbore

acethecouplingretaineragainstthe outer


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





)ENGINEACCESSORIES

aranceofBlowerDriveAssembly

ngeat centerofretainerpointingawayfrom

ssemblywithsix%6-x 2-inchcapscrews

RPACKINGANDGASKET.

ackingintogrooveprovidedatfront end

askettofinishedfaceof boltingflangeon

sea newpackinggasketifoldoneis not

CEANDINSTALLSNAPRING.

NS,feeler,asfollows:

etweenthethrust washerandsupport

ertfeelerribbonstomeasureclearance

ouldbefrom0.003-inchto0.006-inch.


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




ngrooveindrivecouplingcamwhereit

werdrive shaftwhenshaftisinstalled

OWERDRIVEASSEMBLY.

VEASSEMBLYINHOUSING.

inrearcylinderend plateandflywheel

pepointsup.Installtwo3/a- x1^j6-inchcap

olesin cylinderblockendplatetosecure

oend plate.Partiallytightencapscrews.

VESHAFT.

ortestsplinedendthroughdrivegearhub

ouplingcamsoendcontactssnapringin

trear offlywheelhousinguntilblowerhas

OWER.

ENCH,open-end,s/s-in.

n-end;3/4-in.

NCH,open-end,ys-in.

t,y16-in.

-in.,

extension

6-in.WRENCH,socket,s/s-in.,

BLOWERONENGINE.

e,cementanewgaskettocylinderblock,

etcementonblocksideonly.Applysome

kingin grooveofblowerdrivegearsupport.

kingflange(withflatfacetowardspump)

gontopumpdischargepipe andhoseclamp


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





)ENGINEACCESSORIES

EMBLYTOENGINE.

withextension

ace indrivecouplingcam,slideblower

blowerdriveshaftengagesinternalsplines

maybenecessarytorotaterotorsthrough

erdrivecoverslipsoverdrivecoverpacking

rt.Attachblowerto cylinderblockwithfour

thplainwashers.CAUTION:Extreme

damageblower-to-enginegasketordislodge

rdriveshaftwhileinstallingblower.

VECOVER.

wheelhousingwithfour3/8-x5-inchbolts

crews.Tightencapscrewsholdingdrive gear

te.

OILGAGETUBEANDROD.

n.WRENCH,open-end,%-in.

n.

ringoilpipetofittings onblowerdriveand

rench).Insertupperendofoil gagerod

erpipeandconnectlowerendto fittingin

MP.

NCH,socket,Vi-in.,

hargepackingflangetocylinderblock

capscrewswithlockwashers(V2-in.wrench).

ownto connectwaterpumptooilcooler

driver).

USING.

apscrewsthroughholesinairinlet

screenassemblyonthesebolts,placehous-

t tobloweroverbloweropening.

OW.

NCH,%6-in.


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




ofairinlet elbow.Setelbowonblower

ofelbowpointingtowardconnectingtube

usingwith four3/a-x1-inchcapscrews.

clamp(screwdriver).

LINES.

n.WRENCH,open-end,ys-in.

omfirststagefuel filterassemblyto

inderblock)onfuelpump anddischarge

er todischargesideofpump(3/4-and

CONTROLHOUSINGANDCONNECTCON-

or",paragraph187,forinstallationofthis

trols.

TFENDER.

dinsertone boltandthreecapscrewsand

PRECLEANER.

ENCH,open-end,%fi-in.

hold-downstrapboltsinto clipsand

etprecleanerontubeattopof aircleaner

two~/l6-in.wrenches).

ES.

erandblowerdriveassemblyareas

ASSEMBLY.

pportbushings1.6260-1.6265in.

6250-1.6245in.

hingswithhub!0.001-0.002in.

wable0.005in.

ngswithhub0.003-0.006in.

wable0.010in.

enrotorlobes0.004-0.006in.

torlobes0.012-0.018in.


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





)ENGINEACCESSORIES

ngearendofrotorsand

ontendofrotorsandend

orsandhousing—inlet

sandhousing—outletside0.005-0.007in.

S.

cklashontiminggears0.004in.

rrepairwork onblowerareasfollows:

,

y


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




cyclonetype.Approximately85per

iththeairis removedbeforetheairreaches

neyeglassmakesiteasyfortheoperatorto

tin theshellsoit canbeemptiedatthe

rough theprecleanerbytheblower.Fins

recleanergiveitaswirlingmotionwhich

sofdirtout oftheairand depositsthemin

e capsealsagainstentranceofairexcept

peratethetractorwithouttheprecleanerin

TOR.

ofprecleanerandlift assemblyoffpre-

emptieddaily,or oftenerifnecessary.

obecomelevelwithtopofeyeglass.

thetop ofprecleanerandremoveshell.

assemble.Replacegasketifnotin good


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





)ENGINEACCESSORIES

ngers. CAUTION:Donotusea

yinpositionovertube,pushingitdownas

mpbolt.


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




62

aner,ModelCT11-11065,isusedon

edunderthetractorcowl.Aremovableoil

werendoftheair cleanerassembly,isfilled

L,engine,crankcasegrade.Astheair is

r,aportionofthis oiliswhippedupinto

dy ofthecleaner.Dustinthe aircollectson

he airisdrawnthroughthem,and theoil,

romthe screenmats,carriesthisdirtwith

husonlycleanair reachestheengine.The

odicallyandtheaccumulationremoved.A

s,oraleakof anykindbetweentheaircleaner

he purposeofthecleaner.Therefore,care

atallconnectionsaretight.

NANCE.

ependslargelyonthecaregiventhe oil

onisnecessary,andinextremelydustyor

s,morefrequentattentionisoftennecessary.

tainedandthedirtcleanedfromthecup at

vicedregularly,thedirt buildsupinthe

ecupuntilthe openingsinthebafflefor

osedandthe efficiencyofthecleaneris

ughintotheblowerand enginewillresult

inderliners,and otheroperatingparts.It

t thelowerendofthe centralairpassage

e cupisremovedandcleaned.Oil-mixed

ectsinthispipewill restricttheairsupply

oved.Useengineoil(notDieselfuel)i n


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





)ENGINEACCESSORIES

tyshownonlubricationchartfor prevailing

tant.Ifaircleaneris damaged,replaceit

3Bforservicingaircleaner.

TOR.

NCH,open-end,%6-in.

ANDHOOD.

ENCH,open-end,%6-in.

ecleaner(two%6-in.wrenches)andlift

tsatcornersofhood,removeboltat left

box(%fi-in.wrench)andlift hoodoffover

CTORHOSE.

nnectingaircleanertoairinlet elbowand

ANDBOLTS.

shersfromaircleanermountingbands

mundercowl.

ovedfrombodyofcleaner,butif cleaner

tbackon,thescreensshouldbe rinsedin

NCH,9/16-in.

COWL.


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




,

EMBLY

BLY

Y

MBLY

BLY

wofAirPreeleanerand

y

sitionunderneathcowl.Holdcleanerin

ointingtowardsandlevel withairinlet

hcowlandintonuts enclosedintheendsof

hesamewithlower bandbutincludethe

deof cowl.Tightenfirmly.


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





)ENGINEACCESSORIES

AIRINLETELBOW.

nletelbowontoendof outlettubeonair

amps.Checktoseethatoil cupatbottom

hoil.

RECLEANER.

NCH,open-end,%6-in.



twoyi6-in.wrenches).

theoilbath aircleanerpassesthrough

nlethousingto theblower.Alargebutter-

dgesto fittightlyagainstthesides ofthe

er endoftheelbowandis controlledbythe

nd linkage.Whenthefuelandair shut-off

,theairvalvein theinletelbowisclosedas

shutoff.Thisair valveactsasasafetyvalve

sintheengine.Closingtheair valveshutsoff

causestheenginetostop. Aspringandball

heleverassemblyto holdthevalveineither

ds.

epins fromouterendsofcontrolrods

eronelbow.

NCH,%6-in.

eatthe upperendoftheelbowconnect-

beoftheair cleaner(screwdriver).Remove

holdelbowto blowerairinlethousing.Lift

yandremovegasket(%6-in.wrench).


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





ValvefrontShaft

erAssembly.

.(2)

sherfrompivotpinholding leverassem-

rods(pliers)(fig.90). Removeboltclamp-

t(two0/la-m.wrenches)andpryleverfrom

otto losetheballandspring (fig.89)

ssembly,asspringwillthrowball ifreleased.

mbly.

edthroughcapscrewsinairvalve

and removethesethreecapscrews(screw-


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






)ENGINEACCESSORIES

alveShaft

f slotinshaftandpull shaftoutofelbow

rytoreplaceseal,removeseal withpunch

aft.

newseali ntoplacewithsofthammer.

to elbowfromleversideandinsertvalve

:Valvemustbe installedsobevelededges

owwhenclosed.Totest,havenotchinouter

alvein shaft,andturnshaftcounterclock-

gainstelbow,the valveisincorrectposition

dinshaft andvalve.Tightenscrewswith

wirethreadedthroughheads(pliers)(figs.


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





ronAirValveShaft

ossonelbow.Placeballonend ofspring,

whileleveris placedonshaft(fig.89).Install

rsoboltregisterswithnotchin shaftand

hes).Testleverbymovingitbackand

sinholesin eachendofflangeonlever.

mbly.

lationship(fig.90)insertpivotpin on

ughholeinvalvelever andfastenwithflat

etHousing.

n.


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






)ENGINEACCESSORIES

ValveControlRodAssembly

housing.Set elbowonairinlethousing,

seon outlettubeofaircleaner.Secure

four 3/a-x1-inchcapscrews.

trols.

n.

wdriver).Connectouterendsofcontrol

ernorcontrolhousingandleveron throttle

y.

edin againstdash,shut-offleverongov-

duntilpinon leverisagainstrearend of

wbossshouldengageinrear notchinlever

everispulledout, thepinonshut-offlever

nstfrontend ofnotch;andballin elbow

tnotchin leverflange.Adjustmentofair

gor lengtheningcontrolrod(par.187).


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





TEM.

mperatureoftheengineis from160F

nttomaintainthis,temperaturein a

eformationofsludge andinsureefficient

eselfuelscontainacertainamountofsticky

onfuelfilters,injectorparts,andotherparts

eseparts tostick,unlesskeptinsuspension

ture.Thisheatismaintainedby athermo-

ntendof thewatermanifold.Inverycold

cessarytopartiallyclosethe radiatorshutter

gineoperatingtemperature.Itis also

nefromoverheating.

accomplishedbymeansoftheradiator,

eriscirculatedthroughthecylinderblock

trifugalwaterpumpmountedon thefront

venbythelowerblowerrotorshaft.This

watertothe topoftheradiatorcore.The

tsfromapulleyon crankshaft—drawsair

thusdissipatingtheheat andloweringthe

tpassesfromthetop tothebottomofthe


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






)ENGINEACCESSORIES

m

ORSYSTEM.

dposi-

ng.

irpas-

ctive.

ns.

that

kand

e.

block.

eflec-

dim-

air.

not

orand

ing


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





rifugaltype.Abronzeimpellerwith

ntoone endofthecase-hardenedsteelshaft

sing.A pumpdrivecouplingwithanoil

oppositeendoftheshaft.The oilslinger

hepumpbodyflangetopreventoil from

ndthroughthe shaftbearing.Waterispre-

gtheshaftfromtheimpeller endbymeans

eseal,retainedin theimpellerbyasteel

portedatthe driveendona sealed,double-

rustballbearing.Awireslinger isfittedon

phousingandball bearingtopreventmois-

heshaftto thebearing.Thepumpshaftand

emblyandareservicedassuch,becausethe

aceoftheballbearing.The shieldedbearing

assembled.Nofurtherlubricationis neces-

sonthe shaftwithalightpress fit.Ifthe

therwisebound,thecouplingwillturnon

to thepumpisprevented.

emedy

turn-Replacecoupling.

eplacepump.


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






)ENGINEACCESSORIES

wofWaterPump

EM.

dradiatordraincocks.If antifreezesolu-

drainintocleancontainerstosaveforrefill-


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





htFrontfender

TFENDER.

ecapscrewsholdingfenderand remove

BREATHERTUBE.

ngtopoftubetogovernorhousingand lift

(fig.165).

econnectionbetweenwaterpumpand

UTLETPACKINGFLANGE.

wsholdingpumpoutletpackingflangeto


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





)ENGINEACCESSORIES

terPump

BLY.

ewsholdingwaterpumptofront endof

assemblyandcoupling.

PCOVER.

terpumpcoverstudsandremovecover.

DSHAFT.


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




erPumpShaftfromImpeller

an arborpress,flangedown,andpress

ler.Thisremovesshaft andbearingassem-

phousing.Ifthe watersealonlyisto be

urtherdisassemblyisnecessary.Thenew

ump reassembled.Iffurtherdisassembly

ollows:

oupling.

95, forcepumpshaftcouplingfrom


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





)ENGINEACCESSORIES

terPumpShaftCoupling

AIR.

disassembled,carefullyinspectall

vepartsshouldbe replacedwithnewones.

plingcannotalwaysbesuccessfullyused

e heldontheshaftsolely bypressfits,and

reapttostretch themetal.

EARING.

artingto assemblepump,studyfigure

velocationofall parts.Pressshaftandbear-

usinguntilbearing seatsagainstshoulder

BLY.


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




C-^^-iLLJ

<^

<

O


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





)ENGINEACCESSORIES

ngguide,seal,andsealwashertogether.

ub,set sealassemblynexttospring,and

pellerby drivingretainercupdownover

ELLER.

emblyontoouterend ofshaft;thenpress

rend ofshaft;maintainingproperarrange-

LING.

afton arborpressandpressshaft coupling

ateshaft byhandtotestfor clearance

mpbody.Aclearanceof0.005-inchto0.045-

ndsetcoveroverstudsand againstpump

ownwhenpump outletcanbeattached

urVi-inchnutson studsandtightennuts.

omakesureshaft turnsfreelyandthere

nd cover.

NCH,9/16-in.

WRENCH,3/4-in.(2)

Hfuelpump

NGONPUMPSHAFT.

aftwithjawspointingtowardblower.

ngeandpackingringare inpositiononthe

ehose connectionfromthepumptotheoil

gasket,ifnecessary.

BLY.


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




onthe frontendplatecoverofthe blower

pscrews,takingcarethatthedrivinglugs

weenthelugsof thedrivingassemblyonthe

ETPACKINGFLANGE.

NCH,V2-in.

rblockwithtwo%fi-x 1Vi-inchcapscrews

oseconnections(screwdriver).

BREATHERTUBE.

roughcliponoilcoolerand installscrews

tubetogovernorhousing.Closedrain

Startengineandcheckforleaks.

ER.

eebolts andonecapscrew.

mentrequiredforrepair ofwaterpump

erpumpshaft


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





)ENGINEACCESSORIES

82

bly83

85

y86

ghtheradiatortospeedcoolingof the

opto bottomoftheradiator.Thefan

spindle,whichis supportedattheinnerend

onstructionpermitsraisingor loweringthe

anadjustingscrewfor beltadjustmentpur-

ntedonthebalanceweightcover.Thesuc-

esandisboltedto thefanpulleyhub,which

s.It isdrivenbytwoV-beltsfroma pulley

ringsshouldbelubricatedevery240

sprovidedin thefanhubforthis purpose.

whenlubricatingthefantopreventdam-

omuchpressure.

emedy

1 Vi-inchslack.

ebelts.

dfanassembly.

anassembly.

bladeassembly.


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




LTS.

RENCH,open-end,3/4-in.

ANSPINDLE.

kofbracketonendoffan spindle.

n.

ngscrewandturn screwcounterclockwise

emovethemfrom fanpulleygrooves.

After removingbeltfromfanpulley,

aftpulleyandworkbeltoffoverfan. Re-

manner.

NBELTS.


firstbelt inreargrooveoflower crank-

tintorear grooveoffanpulley.Itmaybe

rning motorwithenginecrankingwrench

.Installsecondbeltin frontpulleygrooves

nderparagraph81,"FanBelt Adjust-

T.


crewand jamnutonfanspindle

crewclockwisetotightenbelts.TheV-type


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





)ENGINEACCESSORIES

tments


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




tootightnortooloose.Too tightabeltim-

n bearingsandshortensthelifeof thebelt.

page andreducesthespeedofthefan.

tedwhenoneside canbepressedtowards

nchatpointhalf waybetweenthepulleys.

djustingscrew,thenfirmlytightenthejam

gwrench).Tightenthe locknutonadjust-

.

SEMBLY.

movedasoneunit.Removethethree

ettobalanceweightcover.Lowerassembly

crankshaftpulley.Liftfanassemblyand

arenotto bendradiatorfins.

ASSEMBLY,

,V2-in.

sting

pen-end,K-in.

NCH,socket,^6-in.

SSEMBLY.

ndremovefanbladeassemblyfromfan

FROMSPINDLE.

,socket,1%fi-in.

ottednutonfront endoffanspindle

8)andend washer(l%6-in.wrench)and,

h,tapshaftoutofpulley (hammer).

NER.

DRIVER,6-in.

gfromrearof fanpulleyhub(screw-

ein bearingretainerand,bytappingon

rewretainerfrompulley(fig.99).Remove


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





)ENGINEACCESSORIES

tfromFanPulleySpindle

rkRetainerfromPulley


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




movedfromFanPulley

aycomeout withbearingretainer),

ringgasket(fig.102).

BEARINGS.

mall

earingsfrompulleyhub(hammerand

pwasherandspacer.

FROMBRACKET.

pen-end,3/4-in.

ngscrew(3/4-in.wrench).Screwadjust-

d removefrombracket.Removethehex-

dofspindle(fanwrench)andremove

rsfrombracket.

S.

ts.Replacebearingsif roughorifthey

loredfromheat.Alwaysinstallnewcork

g.Inspectfanspindleforsignsofwear.Check

uglyonspindle.


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





)ENGINEACCESSORIES

anAdjustingScrew

SEMBLY,

02for relativelocationofparts).

GANDCORKRETAINER(par.6a).

RVER,6-in.

rearofpulleyhubto seatagainstshoulder

ndplainwashernexttobearing (fig.102).

bearingretainerand screwretainerinto

unch).Installlockwiresnap ring(screw-

PINDLE.


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




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





)ENGINEACCESSORIES

kWasherandRetainer

e(arbor press).Installthespacerand

pfrontball bearingintopulleyhub(ham-

erand slottednut,tightennut(1%6-in.

pin(pliers).

ACKET.

nspindleandinsert endofspindlethrough

mpwasheronspindlebehindbracketand

ngwithfingers.

CREW.

stingscrewbelowlocknut,insertadjust-

op ofbracket,andscrewitthroughspindle

n bracket(fig.101).Donottightenjam

gscrewuntilfanassemblyisinstalledand

SSEMBLY.

etwith greaseandstickitto pulleyhub

semblytopulleywith four%6-x3/4-inch


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




NASSEMBLY

pen-end,3/4-in.

LYONENGINE.

n.

eygroovesandmaneuverfanassembly

o damageradiatorwithfanblades.Lower

ible andinstalllowerloopsofbelts oncrank-

semblysothreeV2- x2Vi-inchcapscrews

acketandintobalanceweightcover.Tighten

y.

"(par.81).


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





)ENGINEACCESSORIES

ostat,locatedinahousingon thefront

omaticallymaintainscorrectwatertempera-

nextremelycoldweatherwhenitmaybe

allyclosetheradiatorshutter. Beforethe

scirculatedthroughtheoilcooler,cylinder

butdoesnotpassthrough theradiator.

hanopeningin thethermostatanddown

e waterpumpinlet.Whentemperatureof

tely158F,thethermostatbeginstoopen.

hewaterbeginsto circulatethroughthe

roughthebypasstubeis automatically

ethermostatis fullyopened,allof-the

roughtheradiator.Thuscoolingwateris

torduringthewarm-upperiodto providea

reincreasethroughouttheengineaswellas

ofexternaltemperatureconditions.

oLow.

emedy

posi-Replacethermostat.

tive.Replacegasket.

dposi-Replacethermostat,


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




NCH,Vz-in.

EM.

ORHOSEANDBYPASSTUBE.

NCH,V2-in.

nection(screwdriver).Removethetwo

passtubetothe thermostathousing(V2-in.

AHOUSING.

ewswhichholdthehousingto thewater

ostatcannowbeslippedoutof thethermo-

adeto repairadefectivethermostat.It

byr emovingandputtingitina panof

tertosee ifitopensat therighttempera-

,andclosesagainwhenthewatercools.

NCH,V2-in.

TINHOUSING.

stat.Placethermostatinhousing,taking

e.Shellacknewgasketto thermostathous-

gasketwithchassisgrease.

TOWATERMANIFOLD.

ainstwatermanifoldandinstall three

ws.


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






)ENGINEACCESSORIES

ermostatAssembly

HOSEANDWATERBYPASSTUBE.

NCH,Vi-in.

tallhoseon thermostathousing,and

er).Installtwo%fi-x1-inchcapscrewscon-

rmostathousing(Vi-in.wrench).


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





96

atorwithacapacityof53A gallonsis

.It ismountedina shelldirectlyinfront

fan.Agrillin frontoftheradiatorprotects

ght objects.Theshutteronthefrontof

eratedbya leverunderthecowl.Aquicker

tedifthis shutterisclosedwhentheengine

aidsinmaintainingcorrectenginetempera-

ther.

emedy

r.

ndflush.

diatorBlowoutwithcompressedair.

ses.

pairorreplace.

aterCleanandflush.

s


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






)ENGINEACCESSORIES

.(2)

6-in.(2)

2)

NCH,socket,V2-in.

EM.

connectorelbowandwaterpump.

ANDHOOD.

end,%6-in.

ecleaner(two~/ltt-in.wrenches)andlift

tsatcornersofhoodandpry boltsoutof

ear cornerinsidebatterybox(%6-in.

verexhauststack.

ESHAFTGUARDANDGUARDSUPPORT

NCH,%-in.

guardbyremovingthethreebolts atrear

ewsat front(%fi-and%-in.wrenches).Re-

oldingbrackettoradiatorshell andremove

Removethetwocorrespondingcapscrewson

hell toenginesupport.Loosenthetwore-

TFENDERS.

ocapscrewsinleft fenderandonebolt

ht fenderandremovefenders.

NDUPPERRADIATORHOSE.

esatconnectorsneargenerator.Loosen

rhoseand removehosefromthermostat


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





inchDriveShaftGuardBracket

gineSupportBottomCover


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






)ENGINEACCESSORIES

anAssembly

ORTBOTTOMCOVER.

wsholdingcovertoenginesupport.It may

romsupport.

WATERCONNECTION.

wsholdingconnectiontooilcoolerinlet

LY.

shuttercontrolrod(pliers)and pulltop

s possible.Removethethreecapscrews

emblytobalanceweightcoverofengine

ebeltsfrompulleyandliftoutfanassembly.

SSEMBLY.

wspreviouslyloosenedoneachsideatbot-

ropearoundradiator,under headlights,

oist.Lift outradiatorassembly.Disengage

toris liftedout.


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





adiatorAssembly

ROMSHELL.

holdingradiatorshellandlift radiator

entoffourlightwireclips.


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






)ENGINEACCESSORIES

utsfromT-Bolts

punchingtheT-boltsoutthroughgrill

ved,andremoveradiatorgrill.

SEMBLY.

ewsholdingshutterassemblytosheHand

embly.

EPAIRS.

edwithcleanwaterthat isfreefromlime

permanentantifreezesolutioninthe cool-

er.Thesolutionshouldbe testeddailyand

for prevailingtemperatures.

wodrain cocks,andbothoftheseshould

gsystemisdrained ortheunitstored.One

mofthewaterpumphousing,andthe otheris

wconnectingtheradiatortothelubricatingoil

N:Whenrefillingcoolingsystem,remove


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





ethermostathousing.Thiswillpermitair to

block.Assoonas waterrunsoutofthe hole

eplacedand thesystemfilledtoits specified

uldbeflushedout periodicallytoremove

foreignmaterial.Thismaybedonewith

y,withacleaningsolventwhichis notinjuri-

opper.

water,proceedasfollows:

manddisconnectthewaterbypass tube

t.

sbeenremoved,bolthousingbackto the

nectthewaterbypasstube.

shed.Fill thecoolingsystem,startthe

incocksand,usinga hose,keeptheradiator

oughthesystemanddrainsout.

hasbeenflushedfromthesystem,stop

mostat,closethedrains,and refillthesystem.

sedto cleanthecoolingsystem,adif-

efollowed:

m.

lthesystemwithcleaningsolution.

nitforabout anhour,regulatingthe

enginetemperatureat190degrees.

radiatorthoroughly,andrefill.

erialhasgatheredatthetop ofthetubes

lushingoftheradiatoris necessary.

mandremoveradiatorcap.

omtheelbowin whichthemaindrain

dethishose,andstuffa clotharounditif

o radiatorthroughhoseuntilwaterruns

enincreasethewaterpressure.

adiatorin thiswaylongenoughtoforce

psof thetubesandoutthe radiatorfillerpipe.

seandrefillthe coolingsystem.


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






)ENGINEACCESSORIES

trashorlime thatcannotberemoved

willbe necessarytoplaceradiatorinatank

nand boilitto loosenaccumulationsofrust,

thenbe flushedthoroughly.

olesshouldbe closedbysoldering.Radi-

n atankofwaterandtested forstoppageof

houldbeused toclosefillerpipeand inlet,

eintroducedthroughoneofthe adapters.

airwillcausebubblesto appearwhichwill

re.

H,s/s-in.

SEMBLY(par.6a).

adiatorshell.Attachtoshell witheight

RILL.

ght specialT-headbolts,andhexagon

SHELL.

ttachwith eight3/s-x%-inchcapscrews.

outlightwireclipsunder topandbottomcap

yare installed.

6-in.

NCH,%-in.

H,fanadjusting


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





TOPOSITION.

ntopositiononfrontofengine supportand

erl ever.

TOENGINESUPPORT.

s- x1V2-inchcapscrewsholdingradiator

ot tightencapscrews.

LY.

H,fanadjusting

and installfanassemblyonbalance

-x2 Vi-inchcapscrewswithlockwashers

eltsasoutlinedinparagraph81(fan adjust-

ch).

SHUTTERCONTROLROD.

rodandshutter leverwithcotterpin.

DIATORHOSE.

dofhose andplaceendofhoseoverther-

nnectlightwiresneargenerator(screw-

HOLDINGRADIATOR.

a-x 1V2-inchcapscrewsholdingradiator

ghtside.Donottighten them.

D,SUPPORTBRACKET,ANDDRIVESHAFT

NCH,3/4-in.(2)

NCH,%-in.

tbracketinpositionand installtwo

dingbracketandradiatorshell toleft

wtightencapscrewson bothsides(%-in.

eclamp(screwdriver).Installdriveshaft

ear,threecapscrewsatfront.


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






)ENGINEACCESSORIES

TERCONNECTION.

coolerinletand installthetwo%fi-x

connectiontooilcoolerinlet.

ORTBOTTOMCOVER.

1V2-inchcapscrews.

oltsand twocapscrewsinleftfenderand

wsin rightfender.

PRECLEANER.

end,%6-in.

xhauststacksandsecureat eachcorner

ecleanerontubeandtightenclamp(two


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





101

mengine103

mbling104

bassemblies105

rameassembly106

torendframeassembly107

eassembly108

sembly110

endframeassembly1ll

meassembly112

3

erator114

nengine115

,116

elt117

elt118

.....119

egeneratorisamachinefor converting

ectricalenergy.Theunitusedonthistractor

05377.Itis aS^fi-inchframediameter,

ledtypeunit,withballbearingsinboth ends

hegeneratoris drivenbymeansofadrive

atureshaft,ishinge-mountedtothe gener-

bya V-beltfromtheenginecrankshaftpul-

useofa generatorregulator(seesectionII

ontrolof thegeneratoroutput.

Thefunctionofthegeneratoris two-

terythecurrentwithdrawnduringcranking,

ryina chargedcondition.Second,itcarries


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






ENGINEACCESSORIES


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





oaduptothecapacityofthe generator,when

atspeeds wheresubstantialormaximum

ed,thuspreventingundueorprolonged

egeneratorproducesaflowofelectri-

anicalenergy(throughthedrivingbelt from

iesofconductors,assembledinthegenerator

eld.Thiscausesaflow ofcurrentinthecon-

ghthearmaturecommutator,generator

attery andotherelectricalaccessories.The

yfieldwindingswhichare assembledinthe

oes.Current(fromtheconductorsin the

ghthefieldwindingsand inducesthemag-

t ofthetotalcurrentinducedin thearma-

ethemagneticfield.Thethirdbrushis used

rollingthe generatoroutputandpreventing

vely.Thetwomainbrushesareconnected

maximumamountofvoltageand current

atorarmature(whichdependsonspeedand

tappedoff"thegeneratorarmaturecommu-

oplacedthatitreceivesa somewhatlower

chisthevoltageacrossthegeneratorfield

eatea"normal"magneticfieldandcausethe

mal"generatoroutput.Thethirdbrushposi-

ngethegeneratoroutput.Ifaloweroutput is

ybe movedawayfromtheadjacentmain

ountOfvoltageonthe generatorfieldwind-

engthofthegeneratormagneticfieldand the

edoutputcanbeobtainedbymovingthe

ainbrushsoit picksupahighervoltage,

neticfield,whichcausesahigheroutput.

outputmustneverbeadjustedbeyondthe

erator,asthiswouldcausethe generatorto

ed.Thesecondfunctionofthethirdbrush is

putthegeneratorcanproduceforanypartic-

rush.Thisisaccomplishedbymeansofthe

orarmaturereactance,asubjectbeyondthe

effectofthis characteristicistocausethe

amaximumatsomeintermediatespeedand

routputathigherspeed,thus providingsome

olofgeneratoroutput.

egeneratorconsistsofanarmature,

eendassembly,andcommutatorendassem-

ofeacharegivenbelow:


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






)ENGINEACCESSORIES

tureconsistsofasteelshaftontowhich

coreandacommutator.Thecorehaslon-

sulatedandinto whichareassembledthe

ewindingsareconnectedtothesegmentsof

rrentwhichisinducedin thewindingscan

he commutatorandfromtheretothegener-

hecommutatorsegmentsarerevolving.The

ncedsothatitwill notshoweccentricity

rings.Apulleyismountedonthe armature

egeneratorsothe armaturemayberotated

ine.

LY.Thefieldframeassemblyconsistsof

ctedinseries,assembledaroundironpole

framebypoleshoescrews.Oneendofthe

hichconsistsofthetwowindingsconnected

n insulated"F"orfieldterminalinthe field

e fieldwindingassemblyisconnectedtothe

tatorendframeandissuppliedcurrent

eother insulatedterminalismarked"A"

ulatedmain brushinthecommutatorend

themaininsulatedbrush,throughthe "A"

rnalcircuit,andbackthroughthegrounded

enerator.

SSEMBLY.Thecommutatorendassembly

orendframe,ballbearingwithoiling arrange-

the twomainbrushholdersandbrushes,

ichmountsthethirdbrushholder andthird

two mainbrushes.arefixed.Thethirdbrush

mmutatorbypressurefromathirdbrush ten-

Whentheclampscrewisloosened,thethird

soastoshift thethirdbrushpositionwith

s.Allbrushes areheldbybrushspring ten-

torwiththecorrectpressuretoassure good

sconnectedbyaleadto the"A"terminal,

eld frameassembly.Theothermainbrush

oughthegroundedbrushholder.The third

onnectedtothefieldwindingassembly.

.Thedriveendassemblyconsistsofthe

bearing,togetherwiththenecessaryoiling


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




sforthegeneratorareasfollows:

dfromdriveend.

6ouncesformainbrushes and

h.

sat16.1-16.5voltsat2400 rpm.

at15.1-15.5voltsat 2600rpm.

mperesat12volts.

ENANCE.

ceChecks.Operationalmaintenance

hecksmadeduringtheoperationof theve-

heoperatorsomeideaasto theconditionof

meabnormalconditionofoperationisnoted,

eforecompletefailureofthegeneratorand

uringstarting,andafterthe vehicleisinop-

ammeterhandshould benoted.Afterthe

kedandstarted,thegenerator,ifoperating

ybegintoreturntothe batterythecurrent

ently,theammeterreadingshouldbefairly

s originallyinagoodstate ofcharge,the

ducedasubstantialamountaftersome

.Thelength oftimewilldependonthe

argeandthe amountofdrainonthebattery

ctionofoutputisaccomplishedbyoperation

whichfunctionstocutthechargingrate as

hargedcondition,andthuspreventsbattery

ndicatedbyadroppingbackofthe am-

Failureoftheequipmentto functioninthis

onsiderationasoutlinedinsectionII ofthis

tineinspectionchecksofgenerator

dleadsshouldbemadeafterevery100hours

SThegeneratorbrushesshouldnot be

nallength^(i-in.,third brusha%2-in.).

tto,thislength,theymustbe replaced.Brush

icienttogive goodcleancontactofthe

or,andthebrushesmustbe freetoslidein

eadsinthebrushesmust betightandthe

he brushholders.


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






)ENGINEACCESSORIES

ommutatormustbeclean,smooth,round,

he slotsbetweenthesegmentsmustbeopen

rcopperdust.Thearmaturewindingsmust

commutatorsegments.Ifthecommutator

ve,the generatormustberemoved,dis-

mutatorservicedasoutlinedinparagraphs103

beltmustbe tightenedtothecorrect

tAdjustment,par.118).Excessivebeltten-

bearing wear,whilelowbelttensioncauses

ar,andpossiblefailure ofthegeneratorto

r.

onnectionsattheterminalsshould be

yarealltight andingoodcondition.Ifab-

neratororgeneratorregulatorsystemis

ytodeterminewhetheritisthe generator,the

meothercomponentoftheelectricalsystem

durefor makingthisdeterminationiscov-

apter.

emedy

ushholdersandbrush

Recutcommutator.

ushes.

eancommutator.

ature.Replaceunit.

mature.Replaceunit.

cesprings.

atorOutput.

Adjustorreplacebrush springs.

Cleanorreplacebrushes.

mmuta-Cleancommutatorbars.

.Undercutmica.

Recutcommutator.

Recutcommutator.

t


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





mountingbolts.

npulley.

earings.

utput.

Locateforexternalground,cor-

brush

RATORFROMENGINE.

NCH,open-end,%6-in.

n.WRENCH,open-end,s/s-in.

n.

ESHAFTGUARD.

NCH,open-end,%6-in.

fromfrontendofguard(%6-in.wrench)

endofguard(two3A-and %6-m-wrenches)

ER.

ocapscrewsandremoveleftfront fender.

SCREW.

n.

stinglink.

GENERATORTERMINALS.

n.

dremovethetwonutsfromthe twogen-

fromterminalsandreplacewashersand

n.

wswhichholdgeneratortomounting

outofbelt. Generatorandgeneratorregu-

asoneunit.


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






)ENGINEACCESSORIES

apScrewsHoldingGenerator

EDISASSEMBLING.

arriedonlysofar asisnecessarytoade-

theparts.Forexample,itwill notbeneces-

mmutatorendassemblyexceptasrequired

Likewise,thefieldwindingsandterminal

dfromthe fieldframeexceptforreplacement.

lyandassemblyofsuchpartsmayactually

dstoweakenleadsand connectionsbystress-

may damageinsulationsothatashortor

edisassemblingthegenerator,ifthetrouble

ea testlampandtestpointsto determinethe

subassembliesareinneed ofinspectionand

pointscanbeusedto detectshortcircuits,

s.Thetestpointsare connectedinserieswith

eofelectricity(110voltcircuit,forexample).

eldtogether,thelamplights.Thusa short

itisindicatedby lightingofthetestlamp

acrossthecircuit.Likewise,anopencircuit

e lamptolightwhenthe pointsareplaced

sfollows:

GENERATOR.Raiseandinsulategrounded

orandcheckwithtestpointsfromthe "A"


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





rame.Iftestlamplights,indicatingground,

mutatorandcheckthe"A"terminaland the

determinewhetherthearmatureorfield

CIRCUIT.Checkforopenfieldcircuit

F"terminaltothethirdbrush holder.If

open.Leadswhichhavebrokenconnec-

oosetoproducethis conditionmaybere-

openis insideafieldwinding,it mustbe

ELD.Connectabatteryandanammeter

uittodeterminehowmuchcurrentthefield

twitha12-voltbatteryis 1.35to1.55am-

nthistest,sincea shortedfieldwilldrawa

amagetheammeterorotherequipment.If

placethefield(pars.108-110).

ATURE.Anopencircuitedarmatureis

incethisconditioncausesburnedcommu-

ofthis conditionandcorrectionsaregiven

SHORTCIRCUITS.Checkthearmatureon

Seeparagraph109 forexplanationofthe

MAINSUBASSEMBLIES.

IVER,6-in.

fl-in.

D.

ecoverband.Noterelationshipofleadsand

TEDANDTHIRDBRUSHLEADS.

atedandthirdbrushholders.Thisdis-

minalstudandleadfromfield winding.It

rushleadclips.


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






ENGINEACCESSORIES


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





RENDFRAME.

%6-in.

s(%6-in.wrench)anddetachcommutator

e.Itmay benecessarytoloosenthecommu-

thammer.

.

veendframe.Usesoft hammertoloosen.

sofvise, removecotterpin(pliers)and

moveshaftnutandwasher.

se, usepullertoremovepulley.Remove

RAME.

romarmature.Whileitnormallyslipsoff

bepressedoffinan arborpress.Remove

ame.Removespacewasherfromarmature

IVEENDFRAMEASSEMBLY.

VER,6-in.

AINERPLATE.

hatbearingretainerplateandgasket may

NG.


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






ENGINEACCESSORIES


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





me.Whilethismaynormallybedonewith

vetobepressedout inanarborpress.Re-

her.

OMMUTATORENDFRAME

n.

113).

RENDCOVERPLATE.

tachingthreescrews.Removegasket.

ut readily,usearborpress.

BRUSHLEADSCREW.

eadscrewconnectingbrushleadtobrush

RINGS,ARMS,ANDWASHERS.

t brushesoutofholders.Usingpliers,

ndlift upoverspringstop.Arm,spring,and

PLATE.

yremovingthreescrews.Onescrewalso

ensionspring,so springwillalsocomeoff.

PLATE.

gscrewfromoutsideofframeso third

emaybe detachedfromframe.


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






ENGINEACCESSORIES


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





ELDFRAMEASSEMBLY.

,7/16-in.

UDS.

her,flatwasher,andinsulatorfromeach

.The"A"terminalstudmay beremoved

nalstudis solderedtothefieldwindinglead.

NGS.

RIVER,poleshoe

removingfourpoleshoescrews(pole

oes,andwindings.Studandcliponfield

olderedandreplaced,ifrequired(soldering

gfieldwindingsto avoiddamagingleadsor

PAIR.

bly,allpartsshouldbecleaned,exam-

eplaced.Theprocedureforcleaning,inspect-

giveninthefollowingparagraphs:

turebyanydegreasingmethod,sincethis

onandmightruinthe armature.Wipewith

enedwithCARBONTETRACHLORIDE

g.Ifcommutatorisrough,out-of-round,

slots,or isburned,itmaybe turneddownin

ercut(fig.115).Armaturemaybechecked

ircuitas follows:

lampandtest pointsfromthecommu-

or lamination.Ifthelamplights—indicat-

ndis notreadilyapparentandrepairable,

aced.

armatureiseasilydetectable,sincethis

burnedcommutatorbars.Somebarsbadly

rlyclean,indicatesanopen circuitedarma-

otheopencoils inthearmaturesoonburn

underthe brushestheyinterruptaflowof


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






)ENGINEACCESSORIES

ECE

NTS.

ngMicaonCommutator

goccurs.Theopenwillusually befound

rsandis oftenaresultofgeneratoroverload

excessivelyhighgeneratoroutputresulting

brushadjustment.If thebarsarenottoo

emaysometimesbesavedbyresoldering

withrosin flux,turningthecommutatordown

.Makesurethethirdbrush isadjustedac-

y,etc.Ifthecommutatorisrough,

ghmica,filledslots,orburnedspots,place

dturndownthecommutator.Makecutno

nimumdiameterofcommutatoristwo

oturnthecommutatorbelowthisdiameter,

ercutmica%2inch(fig.115).

remaybedetectedon agrowler.The

magnetconnectedtoasourceof alternating

matureisplacedonthegrowler,and ahack-

hortedcoilsi nthearmature,thebladewill

andrepelledfromthe armature,causingthe

armature.Beforediscardinganarmature

ecommutatorslotscarefully,sincecopperor

ectsintheslots andshortsadjacentbars.


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





ecleanedbyadegreasingmethod,since

ulationandmightruin thewindings.Clean

cloth.Becarefulinhandlingthewinding

gorweakeningtheconnectingleadbetween

fieldcurrent drawbyconnectinga12-volt

serieswith thetwofieldleads.Thecurrent

5 amperesat12volts.Replacewindingsif

tions.Thefieldinsulationshouldbe ingood

wornawaysothatthewire isexposed,it

wrapthewindingswith insulatingtapeand

compound.Allsolderedconnectionsshould

der.Ifthe terminalstudorclipis damaged,

ve.Ifthefield insulationisdefective,

thefieldcircuitis, orcouldbecome,grounded

redbyrewrappingthe fieldwindingswith

tionmustbeexecutedwithcareandneat-

kinessofthetapewillpreventreassembling

eshoes inthepropermanner.Allsoldered

dewithrosin-fluxsolder.

sareworn downto~{f\fiinch(original

-%2-in.),replace.Makesurethatthepig

ceinthebrushesandthat theclipisproperly

rushesmaybe seatedwithabrushseating

oneis anabrasivematerialwhich,held

utator,disintegrates,carriesunderthe

a secondortwo.

rushspringsshouldhavesufficientten-

pressurebetweenthebrushesandcommu-

mbled.Thismaybecheckedbyassembling

,andarmsto thecommutatorendframe

mutatorinpositionin theendframeand

ggagethe amountofpullrequiredtoraise

rushes(par.100).Replacespringsiftension

gsappeartoroll roughly,orsloppily,

hebearingsmaybecleanedbyrotatingthem

,dryingthemwithair,andimmediatelyre-

ggrease.

rushplates,brusharm pins,brushhold-

edamaged(bent,warped,cracked,insula-


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






)ENGINEACCESSORIES

brushplate.Theplatesareof arivetedcon-

be servicedasunits.

efectiveinsulator,screw,washer,lead,

shouldbereplaced.Cracked,bent,battered,

andwashersaredefective.Screwsorstuds

broken,orwhichhavecrossedordamaged

adswhichhavebrokenstrandsandbadly

ctive.

ringmeasurementsandmeasurements

sare assembled,orwhichareassembled

ollows:

ureshaft:

5-0.7871

eendframe:

s:1.8508-1.8513

ureshaft:

84-0.6690

FRAMEASSEMBLY.

ADER,poleshoe

DINGS(par.6a).

ADER,poleshoe

bly,withpoleshoes,infieldframe.Insert

htenshoesagainstframe.Install andtighten

poleshoe screwdriver.Windingwithstud

soplacedthatstudcanbe insertedthrough

UDS.

through"F"terminalholeinframeand

washer,lockwasher,andnut.Placestud

h"A"terminalholeandsecurewithinsu-

sher,andnut.


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





MUTATORENDFRAMEASSEMBLY.

n.

PLATE.

rushplate andframeandattachthird

screw.

LATE.

framewiththree screws.Underone

hplatetensionspring, withspringresting

ntonotchinmainbrushplate.

ES,SPRINGS,ARMS,ANDWASHERS.

n.

rms,andwasherstohingepins onbrush

Straightend ofspringprotrudesthrough

entendofspringshouldbe caughtwith

ngstop.Placebrushesin holders.Fasten

holder,toholder,withscrew.

VER,6-in.

silyintoframe,pressinwith arborpress.

plate,andthreescrews(screwdriver).

EENDFRAMEASSEMBLY.

VER,6-in.

G.

VER,6-in.

r,andbearingin frame.Cuppedsideof

ngsoi tdoesnottouchinnerrace ofbear-

otslipintoframeeasily,it maybepressed

curebearinginplacewithgasketretainer

rewdriver).


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






)ENGINEACCESSORIES

RATOR.

-jaw

4-in.

NDRIVEENDFRAME.

gendofarmatureshaft.Insert shaft

dframe.It mayhavetobepressedin

ollaron shaft.

HAFT.

-jaw

mer),presspulleyonshaftin arborpress.

sofvise, installwasherandpulleynut

rewithcotterpin(pliers).

.

placefieldframein positionondrive

RENDFRAME.

16-in.

placecommutatorendframein position

ushesmaybe cockedintheirholdersso

yofthecommutatorduringthisassembly

snotslip intothebearingina normalman-

eandgasket(threescrews—screwdriver)

ssedontheshaftin anarborpress.Replace

rtogetherwithtwothroughbolts.

NDTHIRDBRUSHLEADS.

brushleadsto insulatedandthirdbrush

ch.Thescrewsalsoconnectthebrushleads


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





derlockwashers.Dropbrushesdownon

stingonbrushesinoperatingposition.

D.

urewithscrew.

REGULATOR.

orontopofgeneratorwithtwoscrews.

terminalongeneratorregulatorto "F"

undclipgoesundersecondlockwasherand

F"terminalstud.Attachotherleadfrom

torregulatorto"A"terminalongenerator

TINGGENERATOR.

EWDRIVER,6-in.

ortest

tstand,connectto teststandammeter

cewithteststandinstructionpamphlet.

generator"A"'terminalandgroundgenera-

per lead.Operategeneratoratspeedat

obtained.Ifoutputexceeds16-18am-

immediatelyremovecoverband(screw-

inglockingscrewin commutatorend

movethirdbrushawayfrommainbrushto

neratoroutputatspecifiedvoltagemust

oltagecannotbeobtained,Viohmvariable

rrentcarryingcapacityshouldbeinserted

dresistancecutin untilthespecified

teuntilgeneratorreachesoperatingtem-

s).Atoperatingtemperature,thegenera-

mperesat15.1-15.5volts,at2600 revolu-

edif anindicatorisavailable).Adjustby

ardthe mainbrushtoincreaseoutput,or

mmainbrushto loweroutput.After

ghtenthelockingscrewandreplacecover


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





E—MEDIUMTRACTORMl

)ENGINEACCESSORIES

ratoroutputatthespecifiedvoltage.

ndthespecifiedvalue.Failureto observe

gh settingwhichwilldamagethegenerator.

ENERATORONENGINE.

NCH,open-end,V2-in.

Hopen-end,

n.

ONBRACKET.

dinstall onbracketwithtwo%G~x13A-

ELTINPULLEY.

NCH,open-end,V2-in.

orpulley.Install capscrewsthrough

ntogenerator.Adjustbeltto havefrom

redhalfwaybetweenpulleysandtighten

(V2-in.wrench).Tightencapscrewshold-

ch).Afterthegeneratorisreinstalledon

ed,oratanytimeafter leadshavebeen

connected,ajumperleadshouldbecon-

eenthebatteryandgeneratorterminalsof

forestartingtheengine.Thisallowsa mo-

romthebatteryto flowintothegenerator

hegeneratorwithrespecttothebatteryit

veroperatethegeneratorwiththefield

chargingcircuitopen(opencircuitopera-

highvoltagetobuildup withinthegen-

hefieldand armature.Attachammeter

eneratorregulator(screwdriver).

.

eV2- x1Vi-inchboltsandtwocap


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





SHAFTGUARD.

NCH,open-end,

-x V2-inchcapscrewswithlockwashers

h)andtwo3/e- x1-inchandone%-x

(%6-and3/4-in.wrenches).

RATORBELT,

end,V2-in.

H,open-end,3/4-in.

RENCH,socket,3/4-in.

ESHAFTGUARD(par.103b(1)).

NCH,%6-in.

ER(par.103b(2)).

BELT.

end,V2-in.

djustingcapscrewinadjustinglink (V2-

atorhingecapscrews(s/8-in.wrench)and

prybar.


edinparagraph79. Generatorbeltmay

eys.

ENERATORBELT.

end,V2-in.

H,open-end,3/4-in.

RENCH,socket,3/4-in.

degrooveof enginecrankshaftpulley

ey.


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






)ENGINEACCESSORIES

ELT.

end,V2-in.

ongenerator(prybar).Adjustbeltto

ckmeasuredhalfwaybetweenpulleys.

w(Vi-in.wrench).Tightengeneratorhinge

).


asoutlinedinparagraphs80and 81.

115b(3)).

SHAFTGUARD(par.115b(4)).

H,3/4-in.(2)

NERATORBELT.

116,and117.)

GENERATOR.

e:

eshoe

E,brushseating,


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





122

ulatorfromgenerator124

ulator127

egulator128

gulatorongenerator129

sassemblyisaDelco-RemyModel

yontopofthe generatorandconsistsofa

nismandacut-outrelay,bothmountedon

nderthe samecover.

egulator.Thefunctionsofthetwo

atorare asfollows:

ut-outrelayclosesthecircuitbetween

whenthegeneratorvoltagehasbuilt upto

chargeinto thebattery.Thecut-outrelay

generatorslowsor stopsandcurrentbe-

batteryintothegenerator.

UNIT.Thevoltageregulatorunitis a

agneticallyinsertsorremovesresistancein

Whenthebatteryis inalowstate of

torkeepstheresistanceoutofthe generator

eratorcanproducefull output(asdeter-

g) andthusrechargethebattery.When

arge,thevoltageregulatorinserts resist-

dcircuit,causingthegeneratoroutputto

e,sothatbatteryoverchargeandhigh


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






ENGINEACCESSORIES


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





ramofGeneratorand

Thecut-outrelayconsistsoftwowind-

aseries winding—assembledona single

onedanarmature.Theshuntwindingcon-

wireandis connectedacrossthegenerator.

sofa fewturnsofheavywiredesignedto

andit isconnectedintothechargingcir-

apointwhichis positionedaboveasta-

henthegeneratorisnotoperating,the

mthewindingcore byspringtensionand

Assoonas thegeneratorbeginstooperate

duceenoughvoltageto chargethebattery,

essedonthe relaywindings,createsenough

hearmaturespringtensionandclosethe

eratorischargingthebattery,thepoints

hegeneratorslowsor stopssothatcur-

to thegenerator,thepointsopen.They

ndingmagneticfieldreversesasthe cur-

hetwowindingsno longerhelpeachother,

ck,causingareductionofthe totalmagnetic

nnolongerhold thearmaturedownand


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






)ENGINEACCESSORIES

ngtensionpulls thearmatureupand

UNIT.Thevoltageregulatorunitcon-

mbledontwocores—connectedinseries

rossthegenerator—andanarmaturewitha

closedby springtension.Inthisposition

sconducteddirectlytogroundthroughthe

utisthus available.Asthebatteryap-

tion,itschargingvoltageincreases.Thisin-

ngthetwowindings,becomesgreatenough,

entlycharged,tocausethevoltageregulator

ntthevoltageisgreatenoughto create

gthinthewindingcorestoovercomethe

ndpullthe armaturetowardthecoreso

en.Withthepoints open,thegenerator

oundthrougharesistance.Generatorfield

sequentlyreduced.Aslongasthe battery

tionandline voltageishigh,thenthe

egeneratorfield circuitandthegenerator

woutput.Butwhenthe batterybecomes

nelectricalaccessoriesareturnedonsothat

thenthe loweredvoltagebecomesinsuffi-

enandtheyclose,directlygroundingthe

routputcomesuponthehigh side.There

ors—astandardoutputunitwhenthebat-

w,andareducedoutputgeneratorwhenthe

dlessgeneratoroutputisrequired.

cificationsare:

4.0

IT.

0

nce),.0.5-1.1

30

F)13.5-14.2

11.5-12.2


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





ENANCE.

ceChecks.Operationalmaintenance

hecksmadeduringtheoperationof the

etheoperatorsomeideaastothe condition

atorregulatorsothat ifsomeabnormal

oted,correctionmaybemadebeforecom-

enttakesplace.Duringstarting,and after

the positionoftheammeterhandshould

s electricallycrankedandstarted,the

ormally—willimmediatelybegintoreturn

sed instarting.Consequently,theam-

high. Then,ifthe.batterywasoriginally

thegeneratoroutputwillbereduceda sub-

eratorregulatoroperateswhenthebattery

ndition.Thelengthoftimeafterstartingwill

eof batterychargeandtheamountofdrain

ng.Failureof theequipmenttooperatein

erconsideration(sectionIII,thischapter).

ectioncheckswouldnormallyinclude

ttingsofthecut-outrelayandvoltageregu-

erinstruments,whichincludeavoltmeter

eckscannotbemade.Forexhaustivechecks

lco-Remymanual.Tamperingwiththe

equippedpersonnelcanleadonly todam-

ncreasingthevoltageregulatorsettings

maycauseoverchargedanddamagedbat-

ectricalunits,and damagetothegenera-

egulatorsettingsbelowtheirrated

derchargedbatteriesandinefficientopera-

Adjustingproceduresareoutlinedin

ulatorReplacement.Atthesametime

vedfromthe vehicle,thegeneratorregu-

ed.Themechanicalandelectricalsettings

maybenotedand correctionsmadewhen

aragraph122,the dashammetershould

mmediatelyafterstartingand then,after

theammeterreadingshoulddropbackto

ratorregulatoroperates.Iftheammeter

lthoughthebatteryisknowntobe inalow


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






)ENGINEACCESSORIES

edbyslowstarting motoroperation,dim

fotherelectricalequipment),thenfurther

bleisrequired.Likewise,ifthe ammeter

enthoughthebatteryis knownto'beina

catedbyfast,snappycranking,orbright

ngshouldbemade.Theseconditionsare

teps:

wCHARGINGRATE.Themostaccu-

stateof batterychargeistousea hy-

ysectioninTM9-783B.)Someindication

ebatterymay,-however,begatheredby

hthe electricalequipmentisfunctioning,

ph.Withalowbatteryanda loworno

quipmentbymomentarilygroundingthe

orbymeansof ajumperlead,whilethe

ediumspeed.Ifthe generatoriscapable

t,theoutputwillcomeup.If theoutput

e generatorshouldbecheckedfurtheras

Ifthe outputdoescomeup,thegenerator

edtobereducingthe generatoroutput,even

owstateof charge,andgeneratorregulator

wvoltagesettingor burnedoroxidized

Looseconnections,defectivewiring,or

resistanceinthechargingcircuitmaycause

erateasthoughthe batterywerefully

n adischargedcondition,sothecircuit

nthisconditionis found.

ITHHIGHCHARGINGRATE.Withthis

odeterminewhetherthegeneratorregula-

resistanceinthegeneratorfieldCircuit.

ulatorcoverandchecktoseeifthe points

openthembyhand.If theoutputnowfalls

mustbereadjusted.If theoutputdoesnot

openedbyhand,disconnecttheleadfrom

erator.If theoutputstilldoesnot dropoff,

sgrounded.If theoutputdoesdropoff,

evoltageregulator.It mustberemembered

torregulatorhasoperatedand insertedits

torfieldcircuit,itmaystill bepossiblefor

gethebattery,eventhoughthegeneratoris

ndersuchconditionsthegeneratoroutput

stingthe thirdbrushasoutlinedin para-


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





RATORREGULATORFROM

holdingthethreewiresto generatorregu-

addisconnectedfromthe"BAT"terminal

eit isconnectedtothebatteryanda high

p touchedanymetal.

ulator.

nggeneratorregulatortogeneratorand

eratorregulatorshouldnot bedisas-

oniswheresomepart,suchas thecut-out

rmature,requiresreplacement.Thead-

verydelicateandmustbemadewithgreat

normal operationoftheunit.Actually,

movedfromtheunit,sincethewindings,

bledbyriveting.Itissuggestedthat this

eusedonlywherethereplacementofsome

pectionprocedureoutlinedinpar.126)

RIVER,6-in.

ngscrewandinsulatingwasher.

.

screwingtwoscrews.Thisalsodiscon-

ageregulatorarmature.


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






)ENGINEACCESSORIES

CREW

ATURE

SISTANCE)

CREW

MBLY

wofGeneratorRegulator


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





GULATORARMATURE.

RIVER,4-in.

armaturebyremovingarmaturespring,

andplainwashers(screwdriver).Leadmay

ure.

LAYARMATURE.

emovecut-outrelayarmatureandthick

errelayarmature.It isnotnecessaryto

erwasherthat goesoverarmature.

PAIR.

artsshould beexaminedwithparticu-

tpointsin boththecut-outrelayandthe

ntswhicharedirty,burned,oroxidized

ntandfiber bumperontheflatspringon

atureandthepointon thecut-outrelay

bledtightly.Leads,windings,insulators,

tallbein goodcondition.Ifthewindings,

ontactpoint,andinsulatorsareburnedor

acethecompletegeneratorregulator.The

constructionandonlythe parts,shown

8,areserviceableitems.

pointswhicharepitted,rough,dirty,

witha strokeortwoofa clean,fine-cut

st.Becarefulin cleaningthevoltage

tstoavoidbendingor distortingtheflat

gshouldretainthe twopointsincontact

on.Neveruse emeryclothorsandpaper

mallparticlesof emeryorsandmightembed

eventgood contact.Donottouchthepoint

em,sinceanytraceofoilor greasemay

RATORREGULATOR.

RIVER,6-in.

LAYARMATURE(par.6a).


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






)ENGINEACCESSORIES

turewithtwoscrews.Thickinnerwasher

e.Thinouterwashergoesoverarmature.

GULATORARMATURE.

RIVER,4-in.

rmaturewithtwoscrews(screwdriver),

shers.Solderleadtoarmature,if ithas

kspiralspringbetweenarmatureandlower

oscrews.Thisalsoattachesotherendof

orarmature.Leadshouldbeattachedunder

regulatorunit.

SCREWANDINSULATINGWASHER.

orregulatorunit.Insertinsulating•washer

NERATORREGULATOR.

or specifications.

measuring

sofan ounce

se

ohm

AY.

ong-nose

TER

actpointsheldclosed,checktheair.gap

dthecenterofthe core.Toadjust,loosen

of therelayandraiseor lowerthearma-

crewssecurelyafteradjustment.


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





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






)ENGINEACCESSORIES

PD58004

ctionstoCheckCut-OutRelay

epointopeningwithpointsopen.Ad-

armaturestop.

0).Withcoveroff,connectvoltage

atteryinnormalmannerto checkrelay

voltmeterfrom"GEN"terminaltovoltage

essarytoconnectammeterintocircuitas

tomeasuregeneratoroutput.Gradually

andnotevoltageatwhichrelaypointsclose.

e springposttoincreasethespring tension

ge.Benddownto lowerclosingvoltage.

ULATOR.

measuringin

ofanounce

se

ohm

.Theflatcontactspringtensionis

withthearmatureup.Thepull requiredto

becarefullymeasured.Adjustbyslightly


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





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






)ENGINEACCESSORIES

tionstoCheckGeneratorRegulator

measuredwiththearmatureheld down

estop,betweenthecenterofthe coreand

werarmaturestoptoadjust.

asethearmatureandgagethetravel

dthelowerarmaturestop.Adjustby bend-

p.

earmaturehelddownagainst thelower

hecontactpointopening.Adjustbybending

2).Theopeningvoltageof thecon-

onnectingthemetersandV4 ohmvariable

othevoltageregulator,generator,andbat-

peedslowlyandnotethevoltageat which

oltageregulatorunit open.VOLTAGE

PERATINGTEMPERATURE

LACE.Ifthebatteryis low,the

operate.Toobtainsufficientvoltageto

orpointstoopen,operatethe generatorat

cutinresistanceuntil thevoltageregula-

ge.Toadjust,bendthe armaturespring


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





heopeningvoltagesetting.Bendup to

ngvoltageischeckedbyreducingthe

outresistancesothe voltagedropstothe

ose.Adjustby adjustingtheairgap,as

ptoraise theclosingvoltageordecrease

osingvoltage.Afterreadjustingtheair

ontactpointopeningmayberequired.

ENERATORREGULATORON

NCH,open-end,

REGULATORUNIT.

itinplaceon generatorandsecureitto

s.

Leadfromammetergoestoterminal

tmarked"BAT".Leadfrom"F"terminal

minalon generatorregulator.Leadfrom

oesto"GEN"terminalof generator

e:

measuring

sofan ounce

ohm


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






)ENGINEACCESSORIES

spection133

ngmotor135

fromengine136

bassemblies137

torendframeassembly138

eassembly..—:139

rameassembly140

assembly141

otorswitch142

3

rswitch,144

sembly145

meassembly146

sembly147

endframeassembly148

r149

or151

estartingmotor,Delco-RemyModel

rush,four-pole,heavy-dutyunit,withthe

eebushingsatthe driveend,center,and

hasaheavy-dutystartingmotorswitch

sa Dyerdrivetomeshthedrive pinion

ingtheengineandto demeshthedrive

ginsto operate.Ashiftleverinthe drive

estartingmotorrod andpedalwhichpro-

cowl.Operationofthe shiftleverfirst

meshandcompletionoftheshiftlever


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





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






)ENGINEACCESSORIES

tingmotorswitchsocurrentcanflowfrom

motorsocrankingoftheenginecantake

eoperates,the enginedrivesthepinion

sivespeedscannotbetransmittedbackto

re.

or.Thestartingmotorelectrically

he enginewillstartandrun. Currentfrom

peratethestartingmotor;thiscurrentbeing

hebatterybyoperationofthe generator.

estartingmotorproducescranking

iplethat forceisexertedona conductor

en currentispassedthroughtheconductor.

armaturewindingsareassembledinthe

Thearmatureisfreeto rotatewithinthe

Whencurrentis passedthroughthefield

fieldiscreated.Currentthenflowing

dingscausesastrongforceto beexerted

sothatthe armatureisforcedtorotateor

mentistransmittedbythestarting motor

flywheel,sothattheengineiscranked.

eDyer driveprovidespositivemesh-

htheengineflywheelbeforethestarting

demeshesthedrivepinion assoonasthe

Thecompletedriveisassembledon the

shaftandconsistsofspacewashers,shift

g,pinion,pinionstop,andcotterpin. The

nerdiameterwhicharealoosefit onthe

ehassplineson itsinnerdiameter•which

rmaturesplines.Twolugs onthepinion

slots inthepinion.Astud ontheshift

ot intheshiftsleeve.Whenthe shift

—restingona flatportionoftheshift sleeve

e,pinionguide,andpinion,endwisealong

nion andflywheelteethaline,meshing

ovementoftheshiftlever closesthestart-

ankingis accomplished.Ifthepinion and

andthe teethbutt,thedrivepinionis

eflywheelteethwithoutforwardmovement

hingdonot takeplace.Thisrotationofthe

ctthatthepinionis aloosefiton thearma-

onguide isafairlysnug fit.Astheshift

es(aftertheteethbutt)thepinionguide

ealongthearmatureshaft,compressingthe

uiderotatesand transmitsthisrotational


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





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






)ENGINEACCESSORIES

nionguidelugsandslots inthepinion,to

swithoutforwardmovement.Thepinion

untirtheteeth alineandmeshingcantake

evermovementclosesthestartingmotor

omplished.Assoonasthearmaturebegins

pins backoutofthewayand thedriving

oughthepinion holdsthepinionin mesh

eenginebeginsto operate,itattemptsto

mature,withtheresult thatthepinionis

atureis turningandpinionconsequentlyis

returnstothedemeshedposition.The

milledsectiononthearmaturesplinesso

ockedinthe demeshedposition.Before

ted intomesh,theshiftlevermust be

eshiftlevercanrotatethe shiftsleeve,

flatportionoftheshift sleeveslotandthen

forwardasalreadydescribed.

.125).Thestartingmotorconsistsof

ssembly,fieldframeassembly,armature,

componentparts,driveendassembly,and

RAMEASSEMBLY(fig.125).Thecom-

blyconsistsofanendframewith abush-

ateassemblyassembledtoit. Thebrush

irsof brushesplaced90degreesapart.Two

ectedthrougharingtothe terminal,while

reinsulatedfromthefirsttwo setsandare

ieldcoils.Currentfrom thebatteryenters

ghtwobrushsets intothearmature,from

othertwobrush sets,fromtherethrough

s,thenthrough groundbacktothebat-

hesagainstthearmaturecommutatorwith

degoodcontact.Acoverband onthe

overswindowsintheendframe,andcanbe

tionofthe brushesandcommutatormay

LY(fig.126).Thefieldframeassem-

s,assembledto thefieldframebypole

s.Thecoilsare connectedinseriesby

oilsareconnectedinseries,theother two

s,andbothsets areconnectedinparallel

artingmotorframeorground.


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





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






ENGINEACCESSORIES


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





Thearmatureconsistsofashafton

d.Thelaminationislaterallyslottedand

edthearmaturewindings.Thewindings

mutatorsegmentssothatcurrentfromthe

windingsandbackoutagain.Thearma-

bushingsandthedriveendis helically

assembly.

SSEMBLY(fig.127).Theassembly

me,bushing,and shiftlever.Theshift

housingwithacoversothatdust cannot

is assembledtotheshiftleverso that

rnedtothedemeshedpositionwhenreleased.

ITCH(fig.128).Thestartingmotor

frameand consistsoftwoterminals,anda

,andinsulatedfrom,apushrod andpush

ushbuttonforcesthecontactdiskagainst

ircuitbetweenthebatteryandstarting

eakmechanismisincorporatedinthe

chisto insureaveryrapidbreakingof the

onis released.Sinceahighcurrentis

aslowopeningofthe circuitwouldpermit

ningofthe contacts.Quickopeningofthe

minimum.Specialalloyisused onthe

effectsofthe arcingwhichdoestakeplace.

smconsistsoftwotriggersandatrigger

g,stop washer,andreleasecamonthe

epushbutton isdepressed,therelease

so thetriggerscandropdownbackof the

d.Thisholdsthecontactdiskagainstthe

sureuntilthe pushbuttonisreleased.As

ck,thetriggersstill retainthecontactdisk

suntilsuchtime asthereleasecamtrips

pringto releaseandquicklywithdrawthe

withtheterminals.

ficationsare:

gdriveend.

0ounces.

1.6voltsat 5,000revolutionsperminute.

at570amperesat2.3volts.


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






ENGINEACCESSORIES

4)

orDriveEndFrameAssembly-


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





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






)ENGINEACCESSORIES

KSANDINSPECTION.

Operationalmaintenancechecksarede-

uringthe operationoftheequipment.

ratorsomeideaasto theconditionofthe

omeabnormalconditionofoperationis

emadebeforecompletefailureoftheunit

uentfailuretostartthe engine.During

tarting motorshouldbenoted.Innormal

esofaround70Fthestartingmotorshould

nthe engineatnormalcrankingspeeds.In

ould,ofcourse,turnoverharder andstarting

llybedecreased.Aftertheenginestartsand

sopened,the startingmotorshouldstop

otorcrankstheengine slowlyornotat

bechecked(par.134).Failureto crank

owbattery,defectivebatterycables,poor

motortobatterycircuit(includingswitch),

owtemperatures,orvariousconditionsin

estartingmotormustneverbeusedfor

ny onetimewithoutapauseofseveral min-

ngmotorcoolsoff.Thestartingmotor

ovethevehicle.Failuretoobservethese

tefailureof thestartingmotor.

ectionchecksincludeaperiodicinves-

operationof theconditionofthebattery,

ctions,startingmotorswitch,commutator,

s,andmounting.

onofchargeofthebatteryshouldbe

783B.

ITCH.Thestartingmotorswitchshould

eleasethecontactdiskwithasnap when

edandthecontactdiskshouldbemaking

eterminals(thisto becheckedatthe

maturecommutatormaybeobserved

d.Itshouldbe clean,notout-of-roundor

ouldbewithouthighmicaorburnedbars.

operlyconnectedtothecommutatorriser

shouldbe inplace.Failuretomeetthese

atthearmatureberemovedandthecommu-


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





smustbemakinggoodcontactwiththe

bewornanyshorterthan Viinch(froman

f worndownto,oralmostto,this length,

Leadconnectionsmustbetightand in

boltsmustbetight.

driveassemblycannotbeobserved

untedonthe engine,butitsactioncanbe

erationofthe startingmotor.

Atperiodicintervalsof400hoursof

torshouldberemovedfromtheengine,dis-

eanedandinspected(pars.136through

ailureof theequipmentatsomecritical

deredanimportantpartof thepreventive

ed.

s.

earma-

agereg-

eter.

ons

ctions"

tor.

gebattery.

tighten.

.Recutcommutator.


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






)ENGINEACCESSORIES

emedy

d orEliminatedefectivecondition.

tsClean.

witch.Checkcontacts.

Replace.

eryandCheckcircuits.

leads.

ature.

norreplacebrushes.

OWCRANKINGMOTOR.

rativeorslowcrankingstartingmotor,a

tofindthe approximatelocationoftrouble

doperatingthestartingmotor.Oneof

elights willgoout,thelights willdim,

twithnocrankingaction.

helights gooutasan attemptto

catesa defectiveconnectioninthe circuit

orandbattery.Enoughcurrentcanget

ontolightthe lights,butwhenthestarting

stofthe currentwhichcangetthrough

motor,sothe lightsgoout.Notenough

operatethe startingmotor.Thecorrection

connectionsandreplaceanydefective

tsdimappreciablywhenthestarting

tarting motoroperatesslowly,itisoften

edbattery.Thedischargedbatterycan

ghtthe lights,butthrowing-theadded

batterycausesthe voltagetodropoffand

fthelights staybrightwithnocrank-

gmotorswitchis operated,itisanindica-

eenthe startingmotorandbattery,or

self.Thecircuitand switchshouldbe

rentisbeing deliveredtothestarting

uldberemovedandthe brushes,commuta-

xamined.Thebrushesshouldbemaking

ecommutator,,thecommutatormustbe


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





tight.If thebrushesareworn,orif the

my,burned,orhashighmica,thenthat may

ircuitandthepropercorrectionmustbe

dbereplaced.Ifthe startingmotoris

eandthetrouble(brushes,commutator,or

apparent,thestartingmotorshouldbe

andcheckedonthenoload andtorquetests

ointsasoutlinedin thefollowingparagraph.

TINGMOTORFROMENGINE.

nd,

NCH,socket,%-in,

ESHAFTGUARD.

H,3/4-in.(2)

fromfrontendofguard(%6-in.wrench)

ofguard(%fi-and%-in.wrenches)andlift

ER.

ocapscrewsandremoveleftfront fender.

YCABLE.

fromstartingmotorswitch.Tapetheend

touchingmetalandshorting.Removeother

NGMOTORROD.

hiftlever.

DINGSTARTINGMOTOR.

ENCH,socket,%-m.,

on

ws(%-in.socketwrench)andonebolt

hand%-insocketwrench)holdingstarting

.


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






)ENGINEACCESSORIES

artingMotor

OTOR.

andremovefromtractor.

MAINSUBASSEMBLIES(fig.124).

RVER,8-in.

%fi-in.

/4-in.

OTORSWITCH.

NCH,3/4-iri.

gnut(3/4-in.wrench)whichattachescon-

terminal.Removefourscrews(8-in.screw-

htofieldframe,andlift offswitch.

AMEHOUSINGASSEMBLY.

mall

y16-in.


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





blycenterbearingandfieldframeso rela-

nduptangson thefivelockingwashers

emovefivecapscrews(%6-in.wrench)

endframeawayfromfieldframe(soft

ringandDyerdriveassembly,willcome

eendframe.

ORENDFRAMEASSEMBLY.

RIVER,6-in.

7/16-in.

meandfieldframesorelationshipis estab-

dbylooseningscrew(screwdriver).Note

andbrushes.Disconnecttwoleadsfrom

movingtwoscrews(screwdriver).Bendup

hammerandpunch)andremovefourscrews

ngwashers.Tapcommutatorendframeas-

).

OMMUTATORENDFRAME

in.

EASSEMBLY.

NCH,%-in.

t(3/4-in.wrench)lockwasher,connector

atwasher,andtwoinsulatingwashers.Re-

driver),lockwashers,andflatwashersandlift

commutatorendframeassembly.Remove

nsulatingwashersandtwolarge insulating

PLATEASSEMBLY(fig.130).

achingscrews(screwdriver),liftupon

eeightbrushes.(NOTE:Furtherdisassem-

rmallyunlessinsulators,brushholders,


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






ENGINEACCESSORIES


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





eplacement.)Removebrushholdersto

coilleadsbyunscrewingbrushholderand

holderscrew(screwdriver).Twosprings

shholderand springpoststud.Thereare

dandscrew.Partswill comeoffinfollowing

acerplate,insulatingplate,four insulating

teside)brushholder,attachingplate,and

othertwobrushholdersfromplateand stud

poststudsandscrews(screwdriver).Under

Brushholders andthickspacerplatewill

gscomeoffofeachpost stud.

ATORENDFRAMEBUSHING.

aybepressedout andanewoneinstalled.

moved.Installnewoilwickandoileras re-

andinstallnewone(shellackin place),

ELDFRAMEASSEMBLY.

SCREWDRIVER,6-in.

OILSFROMFIELDFRAME.

fieldframe,byremovingscrews.

FROMFRAME.

ldframebyremovingeightpole shoe

ndcoils.Becarefulwithcoilsto avoidbend-

maginginsulation.

IVEENDFRAMEASSEMBLY.

VER,8-in.


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






)ENGINEACCESSORIES

ASSEMBLY.

blybyremovingfourscrews,cap,shift

everspring.

e,itmaybepressedoutand anewonein-

doileras required.

ERDRIVEASSEMBLY.

PARTSFROMARMATURESHAFT.

stop,pinion,spring,pinionguide,shift

s,centerbearingassembly,andcollar,from

med.Aftercotterpinhas beenremoved,

duntil notchesregisterwithshaftsplines

Restofassemblyslides offeasily(press

CENTERBEARING,IFNECESSARY.

required.

ARTINGMOTORSWITCH.

NCH,1Vi-in.

LATEASSEMBLY.

ftoffterminalplateassembly.


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





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






)ENGINEACCESSORIES

USHBUTTONASSEMBLY.

tnutandremovepushbutton andshaft

washer,gasket,andsleevefromhousing.

SK.

unscrewcastellatednut(yifi-inwrench)

med,contactdiskspringretainer,cupped

retainercuppedwasher.Removefromoppo-

spring andpushrod.

ALPLATEASSEMBLY.

eassemblyfurther,ifnecessary,byremov-

romeachterminalstud:nut,lockwasher,

asher,smallinsulatingwasher,terminalplate,

gplate.Anut andlockwasherhavepre-

meachstud.

ndercutinhousing.Withpieceof stiff

ins. Triggerswillcomeout.

PAIR.

bly,allpartsshouldbecleanedand ex-

rtsreplaced.Theprocedureofcleaningand

thefollowingsteps.

anthearmaturebyanydegreasing

amagetheinsulationandmightruin the

nclothslightlydampenedwithCARBON

ENT,dry-cleaning.Ifcommutatoris

ighmica,filledslots,oris burned,itmustbe

dthemicaundercut(par.109).Theshaft

excessivelyandthe undercutintowhichthe

ea snugfitforthe pinionstop.Armature

edforground,open,or shortcircuitasfol-

tlampandtest pointsfromthecom-

aftor lamination.Ifthelamplights,indi-

oundis notreadilyapparentandrepairable,

aced.


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





darmatureisofteneasyto detect,since

mebadlyburnedcommutatorbarswhile

Thebars connectedtotheopenarmature

ation,sinceeverytimethey passunder

a flowofcurrentsothatheavyarcing

lybefoundat thecommutatorriserbars

essivelylongcrankingperiodswhichover-

connectionstobecomebad.Ifthebars

e armaturemayoftenbesavedbyplac-

eandturningdownthecommutator.This

ld bedoneforacommutatorthatis worn,

ghmica,orfilledslots.Makecut nodeeper

diameterofcommutatoris2inches(orig-

arytoturncommutatordownbelowthis

re.Undercutmica%2inch(fig.115).

uremaybedetectedon agrowler.The

magnetconnectedtoasourceof alternating

matureisplacedon thegrowler,anda

etheshortedcoilsinthe armature,the

tractedtoand repelledfromthearmature,

gainst thearmature.Beforediscardingan

nspectthecommutatorslotscarefully,

sometimescollectsinthe slotsandshorts

eLoose.Ifthebandingwire has

esberepairedbyrewrappingtightlyand

dnotbe cleanedbyanydegreasing

amagetheinsulationandmightruin the

withaclean,drycloth.Be carefulin

voidbreakingor weakeningtheconnecting

fthefieldinsulationis charredorchafed

.xposed,itissometimespossibletorewrap

ndpaintthem withinsulatingcompound.

atif thewrappingisdonecarelesslysothe

e,it willbeimpossibletoreassemblethe

All solderedconnectionsshouldbemade

sareworn downto*Ainch(original

kesure'thatthepigtailleads aretightin

lipsarefastenedwell:tothe leads.

rushspringsshouldhavesufficientten-

pressurebetweenthebrushesandcommu-


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






)ENGINEACCESSORIES

mbled.Thismaybecheckedbyplacingthe

orendframetogetherintheirnormaloperat-

ngthe brushesintheirholderswith the

etensionofthesprings againstthebrushes

ring gage(par.132).Replacespringsifthe

ngsare worn,theyshouldbereplaced.

greatestonthesidewhichsustainsthe

ewbushingsare installed,theyshouldbe

ndburnishto0.562-0.564inch

burnishto1.122-1.125inch

urnishto0.7805-0.7825inch

inandreamedtosize,the oilwickholemust

p abur,whichmustberemovedwitha

esize asthereamer.Bushingsmustbe

achinedregistersoncastings.

ebrush holders,spacerplates,insulators,

,burned,orotherwisedamaged,replace.

ITCH.Theswitchcontactsshouldbe

urnspringssufficientlystrongtoprovide

thecontactdiskandterminals,whenthe

chedbythe triggerarms.

nionstopmustnotbe wornand,on

undercutsnugly.Pinionteethmust notbe

xcessively.Shiftsleeveassemblymustbein

tightlyfastenedtogether.

efectiveinsulator,screw,washer,lead,

replaced.Cracked,bent,worn,burnedinsu-

ctive.Studsorscrewswhicharebent, bat-

vecrossedordamagedthreadsaredefective.

strandsorfrayedinsulationaredefective.

matureshaftandbushingsmeasureas

CommutatorEnd

122-1.1250.562-0.564

1.1130.5595-0.5605


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





TINGMOTORSWITCH.

1Vi-in.

nd securewithpins.Placespringin

PLATEASSEMBLY.

ntheorder named,terminalstudinsulat-

mallinsulatingwasher,largeinsulating

her,andnut.Contactsonstudheadsshould

mareawillcontactthecontactdisk.

SK.

d withPETROLATUMandputspring

Onthreadedendofrod,placespringretainer

inerwasher,contactdisk,nut,andcotterpin

mustfacespring.Runnutdownuntil cas-

olein pushrod(%6-in.wrench).

USHBUTTONASSEMBLY.

minsidesurfaceofsleeve.Putsleeve

hPETROLATUM,placegasketandflat

pushbuttonand shaftassemblyandsecure

ATEASSEMBLY.

mblywithfourscrews.Platemaybe

tureofswitchmountingbracket.Besure

bledtoconformwithcurvature.


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






)ENGINEACCESSORIES

DRIVEASSEMBLY.

Assembly(fig.124).

ft,inthe ordernamed,spacecollar,center

pacewasher,largespacewasher,shiftsleeve,

n,pinionstop,andcotterpin. Sideofcenter

rojectsmostgoestowardarmature.Cupped

s awayfromarmature.Pinionguideis

wardpinion (fig.124).Makelugson

onslots byholdingpinionguidenearend of

on,andstarting piniononsplineswith

npinion slots.Pushpiniononshaft.With

til holesaline,insertcotterpin,andsecure

EENDFRAMEASSEMBLY.

rameAssembly(fig.127).

n.

assembletodriveendframewithfour

cespringonshaftlevershaftwithlongtang

atchotherend ofspring,twistit inacoun-

ddropendintoslotinend ofshaft(pliers).

FRAMEASSEMBLY.

SPREADER,poleshoe

n framewithpoleshoes,insertpoleshoe

thpoleshoescrewdriver,tightenpoleshoe

.Fastencoilleadsto framewithscrews

MUTATORENDFRAMEASSEMBLY.

NCH,3/4-in.


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





130).

ATEASSEMBLY.

oplateand studassemblywithbrush

ndscrews.Onebrushholder isassembled

ud,whileotherisassembled180degrees

ewswithshortthreadedsection.Thick

dersandlockwashersgo underscrewsand

post studswithhookedendstowardbrush

Put insulatingplateinpositiononopposite

emblyandplacebrushholderattachingplate

ngother twobrushholderswithpoststuds

gwashersgoineachscrewholeto insulate

eandstud assembly.Abovethesegothe

spacerplate,brushholder,lockwashers,

uldgo onpinswithhookedendstoward

olders.Placeeightbrushesinholdersand

dclipstobrushholderswith screwsandlock

two screwswhichalsofastenfieldleadsto

sideholders90 degreesfromstud.)

EASSEMBLY.

NCH,3/4-in.

washersandeightsmallinsulating wash-

brushplateassemblyinpositionin commu-

ewiththree screws(screwdriver)andlock

lstudtwoinsulatingwashers,plainwasher,

rench),connectorcable,lockwasher,and

TINGMOTOR.

RVER,8-in.

NCH,3/4-in.

RENDFRAMEANDFIELDFRAME.

RVER,6-in.

meandfieldframetogetherincorrect,

markingsmadeduringdisassembly.Fasten


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






)ENGINEACCESSORIES

ngwashers(%6-in.wrench).Usenewlock-

gupagainstscrewhead.Bend othertang

andhammer).Connecttwofieldcoilleads

wand lockwasher.Thisalsofastensbrush

(screwdriver).

SITION.

ringandDyerdrive,maybeplacedin

atorendoftheshaft inthecommutatorend

ushes andcockthemintheirholdersso

ayof thecommutatorwhilethisisbeing

ownoncommutator,.putcoverbandon,and

NGASSEMBLY.

,7/16-in.

blyinposition onfieldframe.Bringin

tudonthe shiftlevercanengagethesloti n

orrectrelationshipoffieldframe,center

measdeterminedby markingsmadeondis-

escrews(7/l6-in.wrench)andlockingwash-

erup againstscrewheadandotherdown

andpunch).

OTORSWITCH.

NCH,y4-in.

chtofieldframewithfour screws(screw-

cabletoterminalstudwithlockwasherand

MOTOR.

DICATOR,rpm

ENT.Whentheshiftleverhasmoved

motorswitchandcompleteditstravelso that

ngposition,itshouldbepossible tomove

%6inchagainstthepinionspring (fig.132).


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





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






)ENGINEACCESSORIES

by looseningthelocknutonthe shiftlever

routasrequired.Adjustmentmustbe accu-

tmentmightputsufficientthrustagainstthe

themoff.

ctthestartingmotorin serieswitha

tageandanammetercapableofreading

.Ifarevolutionsperminuteindicatoris

rerevolutionsperminuteaswellas the

unning atnoloadspeed.

testingequipmentisrequiredforcon-

ofthestartingmotor.Thetorquedeveloped,

arecheckedtogether.

oLOADANDTORQUETESTS.

raw,andnoload speedindicatenormal

otor.

highcurrentdrawwithlowdeveloped

gs,loosepoleshoeswhichallow arma-

eld.Checkbyraisingbrushesfrom

dtestingwithtestlampandpointsfrom

rameandfromcommutatortoframe.If

exists.Tocheckthefieldsforground,the

sattheoppositeend ofthefieldframefrom

emovedandthefieldsthen checkedwiththe

ckarmatureongrowler.

HighCurrentDraw.

at terminalorbrushes.

hichpreventarmaturefromturning.

No CurrentDraw.

withtestlampand points.

r.143).

ushsprings,wornbrushes,highcommu-

onswhichwouldpreventgoodcontactbe-

utator.


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





lowtorqueandlowcurrentdraw

withtestlampand points.,

dueto wornbrushes,dirtycommutator,

gs, andothercausesofpoorcontactbe-

ushes.

ctions.

hlowdevelopedtorqueandhighcurrent

ds.Itis difficulttodetectshortedfieldswith

nts,sincethefieldresistanceisoriginallylow.

ted,installnewfields andcheckforimprove-

TARTINGMOTOR.

nd,

.

NCH,socket,%-in.,

CE.

ENCH,socket,%-in.,'

on

ofstartingmotorandhousing,set starting

n place.

OTORROD.

donshiftleverwith pinwasherand

apscrewonshift leverasfollows:Screw

rench)sothat theswitchcontactsdonot

hedall thewayforward.Placetheshifter

n(the startingmotorpinionwillbeagainst

ewoutso thattheswitchcontactsclose.

leverbackandturntheadjustingscrew

TURNS.Lockthenut.

ABLE.


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






)ENGINEACCESSORIES

mmeterwire,andelectricbrakewireto

.Putonwasherand nutandtighten.

movedinremovalprocedure(par.136),

SHAFTGUARD.

H,3/4-in.(2)

xVi-inchcapscrewsin frontend

2-x1-inchandoneVi-x1Vi-inchboltsin

enches).

poleshoe

SPREADER,poleshoe


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





STEM.

by acombinationpressure,gravity,and

fromthe crankcasesumpthroughtheoil

ventionalgeartypeoil pumpdrivenbya

sprocketonthefront endofthecrankshaft.

ssureoffrom 25to35pounds.Oil isforced

ll-lowtype filtermountedonthefrontof

ough anoilcooler(fig.133).This cooler

pecoolingunit.Coolingwaterfrom the

hehousingby thewaterpumpandsur-

oughwhichthelubricatingoil flows.The

dthroughdrilledpassagesin thecylinder

,camshaft,balanceshaft,andidlergear.

nkshaftprovideoilflow fromthemain

nkpinsandconnectingrodbearings.

nectingrodbearingsisforcedonup

n theconnectingrodtothepistonpin

ghfour smallholeslocatedinthetop of

spraysagainstthe undersideofthetop

runsbackdownthe insideofthepiston

gheatawayfromthetopof thepiston,

erwalls.

camshaftandbalanceshaftlubricates

tsand isforcedthroughpassagesinthe

hedrilled rockershaftbracketboltstothe

olesinthe rockerarmshaftsupplyoilto

Fromeachrockerarmclevis,anoilholeis

ole. Excessoilfromrockerarmslubricates

ectorfollowersaswellas upperpushrod

sarelubricatedbyoil drainingfromcam

Theoildrainsinto cavitiesaroundcamshaft

opassagesinupperpartof blowerhousing

ower,lubricatestheblowergearsand


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






)ENGINEACCESSORIES

ofWaterPumpandOilCooler


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





cation

nsto oilpan.Anoilslinger infrontblower

governorweightassembly.

engineislubricatedby oilflowingfrom

dlergearbearing,camshaft,andbalance

rdrivebearingreceivesoilfroman external

cylinderblock.


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






)ENGINEACCESSORIES

ationtothe enginebearings—should

olerbecomeclogged—abypassvalveis

fromthepumptotheoil filter(fig.135).

filterinletreaches40pounds,thevalve

directlyfromthepumptotheengine oil

tions,however,theoilwillbeneitherfiltered

ditionshouldbe avoidedbykeepingthe

reefromdepositsat alltimesbyregular


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





m.

FORSYSTEM.

e.

fuel

nnec-

ver.

eto

e.

satoil

bly.

ak

ec-

vefit-

ement.

engine

.

cebear-

ter.

etsde-

erhead.

erblock.

asket.


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






)ENGINEACCESSORIES

onventionalgeartypeandis suspended

ringcap,anddrivenby achainfromsprocket

Thedrivesprocketshaftassemblyis sus-

nbearingcap.A self-aliningdrivesleeve

ftwiththeoilpumpdrive gearshaft.Ascreen

pinlettostrainthe oilbeforeitreachesthe

lve,of theplungertype,iscontained

at whenthepressureinthe oillineexceeds

spersquareinch,thereliefvalveopensto

deofthepump.

emedy

utletRepair orreplace.

ce.

ng.Freeorreplace.

orn.Replacewornparts.

ng.Replacewornparts.

screen.

Replace.

lacebushings.


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





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






)ENGINEACCESSORIES

ofOil Pump—TopView

n.

ORTBOTTOMCOVER.

wsholdingbottomcoverto enginesupport

ethe22 capscrewswhichholdoil pan

oilpan.

LETPIPE ANDBYPASSVALVE.

n.

oldingoilpumpoutlet pipeandoil

cylinderblock.Removeoutletpipeand


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





lPumpCover

DYASSEMBLY.

capscrewsholdingoil pumpassembly

emoveoil pumpassembly.Removedrive

mpsprocketout ofdrivechainifsprocket

moved.

E.

ugandcoppergasketfromeachside of

andspring frombody(fig.139).

R.

oldingcovertopumpbodyandremove

sembly.


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






)ENGINEACCESSORIES

enGearRemoved

R.

rfrompumpbody.

ANDSHAFT.

mblyonbedofarbor press,coversideup,

boron drivegearshaftsoas nottocover

fromgearandbody.Removegearandkey

KETSHAFTASSEMBLY.

ofarborpress withsprocketup,edgesof

press.Press shaftandkeyoutofsprocket.

dslideshaftfromsprocketsupport(pliers).

MPINLET.

nddropoilscreenoutof screencover.

VE.

valveassemblyandremovespringand

TS.

ts forwear.Principalwearingpartsare

oilhasbeenkeptclean,wearon theseparts


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





fdirt andsludgehavebeenallowedto

system.Refertoparagraph162forclear-

rnappreciablyor scored,replace.Ifpump

eplacebodyandcover.Gearsshouldform

dywithnoperceptiblelooseness.Badly

in lowengineoilpressure.Inspectshaft

ear,replacingwornparts.Inspectsprocket

y worn.

semblyandreplacescoredorwornparts.

eenfor holes.Replaceifnecessary.

RENCH,1-in.

4-in.

138).

EARS(par.6a).

oilandslide shaftintopumpbody.

nd placegearonshaftwithkfeywaylined

edendof shaftonbedofarbor pressand

veendof gearflushwithendofshaft. Install

npumpbody.

ANDOILPUMPINLET.

urfaceofpumpbody arecleanand

onbodywithmark"RH-TOP"toattaching

our%6-x3/4-inchcapscrews.Installoil

securewithretainersnappedinto slotsin

E.

ssinvalve,lubricate,andinstallintothe

y.Whenpump bodyisviewedfromgear

tup,springison theright-handside.Install

sineachendof bore.Drivegearshaftmust

bind.


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






)ENGINEACCESSORIES

PumpReliefValve

TSHAFTASSEMBLY.

etshaftthroughsprocketshaftsupport

hensetassemblyon bedofarborpress

aftandkey.Do notpresssprocketonso

cannotrotatefreely.

ALVE.

heninsert thevalvespring.Thespring

anewcoppergasketand installbypass

curely.


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





lPumpBypassValve

HAFTASSEMBLY.

rivechainandturn sprocketsupport

EMBLYINENGINE.

pdriveshaft.Placeassemblyin position,

plinedendof sprocketshaft.Secureassem-

capwithtwo3/s-inchnuts.Theninstall

wsthroughpumpbodybracketandinto

omuchslackin oilpumpdrivechainmay

nequalamountofshims—madefromshim

earingcaps andpumpassemblysupporting

wever,shouldbeallowedinchain,butif

ewchain.

ANDBYPASSVALVE.

n.

peflangeandbypassvalvebody.Install

screwandone%6~x1%-inchcapscrewin


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





CE— MEDIUMTRACTORMl

W)ENGINEACCESSORIES

6-x3/t-inchcapscrewsthroughpipe flange

pan.Install panwith22%6-x1-inch

proper gradeofengineoil,startengine,

ORTBOTTOMCOVER.

omcoverandsecure withfour%-x

ES.

ancesforoilpump areasfollows:

fteeth19

erofteeth24

.0045-in.

E.

andbody0.0025-0.0045-in.

/32-in.

1to23lb at!3%4-in.


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





ocatedon thefrontoftheengine,con-

almetalfilterelementcontainedinsidea

avingthepumppassesthroughthisfilter

totheoilcooler.Thesemetaledge type

rgeparticlesfromthe oilandcollectacon-

dgefromthe oil.Aplugin thebottomof

ningof sludgeandotherforeignmatter.

eriscastwith theadapterbetweenoil

emedy

dcleanfilter;replace

ysub-WashwithSOLVENT,dry-clean-

egasket.

enstud.

cecasting.

WRENCH,squareplug,


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





E—MEDIUMTRACTORMl

)ENGINEACCESSORIES

ewofLubricatingOilFilter


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





bricatingOHFilter

NPLUG.

-in.

er andallowoiltodrain fromfilter.

OILFILTERSTUD.

gasketandliftoff filterhousingand

e filtershouldberemovedandcleaned

seisdrainedandatany timebetweenoil

emaybelow.

anDiesel fuelwithasoft brush.Donot

mentor useawirebrush,as damagemay

yanddry them.Cleaninsideoffilter


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






)ENGINEACCESSORIES

ubricatingOilFilterElement

NGGASKET.

n baseoffilteris ingoodcondition.If

ceit.

detheother,andset theminfilterbase.

DRAIN PLUG.

nt,makingsurethatbottomofhousing

allstud andgasketandtighten,usinga

erdrainplug (Win.wrench).

PECTFORLEAKS.


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





R

rassemblyconsistsofa housinginside

ntsomewhatsimilartothecoreofa steam

actorradiatorcirculatesaroundthisele-

catingoil circulatesthroughtheelement.

ed withsmallfinswhichdissipatetheheat

nto thecoolingwaterwhichsurroundsthe

ousing.

Oil.

emedy

ce.

shellackbothsides).

ting.

eandcleanoutelement

ng;

orfilled.

eandcleanoutelement;

NCH,socket,Vi-in.,

extension

socket,%6-in.


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






)ENGINEACCESSORIES

OilCoolerElement

TFENDER.

oltsholdingfender.Removefender.

EM.

BYPASSTUBE.

gwaterbypasstubecliptocoolerhousing.

ORTBOTTOMCOVER.

oldingenginesupportbottomcoverand

NCH,V2-in.

nectingwaterpumpandoilcooler(screw-

ctiondownontocoolerpipe.Removetwo

terconnection(V2-in.wrench).

USING.

ithextension

ewsholdingcoolerhousingtolubricating

and removehousingandelement.

GOILFILTERANDCOOLERADAPTER.

.

ldingadaptertocylinderblockand


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





R

wofLubricatingOilFilter


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






)ENGINEACCESSORIES

maintenanceprocedureisfollowed,the

ntlyforanindefiniteperiod.However,when

adenwithimpurities,theseimpuritieswillbe

usingcloggingandinefficiency.Toeffec-

necessarytoremovecoolerelementand

throughcoolerelementforsometimeby

e,ajetof steam,usedafterapplyinga

effectivecleaner.Aftercleaning,removeall

ressedair.

e,placethecoolerunitina vesseland

HLORIDE—orwithothersuitable

st oneinchaboveopeningsintheunit plate.

as ameansofforcingthecleaningsolution

plates.Continuethisoperationuntil unit

aningwithCARBONTETRACHLORIDE

r orwithadequateventilation,becauseof

emical.

or corrosion.Somekindsofwatercon-

andcorrodethis element.Replaceelement

NCH,socket,V2-in.

NCH,socket,%G-in.

45for relativepositionofparts).

CYLINDERBLOCK(par.6a).

ylinderblockbosses.Placeadapterup

itha%-inchcapscrewin eachholeincenter

om,andfour%-x1%-inchcapscrewsin the

ASKETS.

dadaptersurfacesandshellackgasketsto

nt.Thencoatoutersides ofgasketswith


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





R

DHOUSING.

ndattachhousingandelementto adapter

ews.

NCH,socket,V2-in.

olerand tightenclamp.Installtwo%6-

erwaterconnectionandtighten,usinga new

ASSTUBE.

wgasketand installgasketandwater

two%6- x1V2-inchcapscrews.

OLDINGGOVERNORBREATHERPIPE

lipandinto coolerhousing.

wandbolts.

SPECTFORLEAKS.

tengine,andinspectall connectionsfor

ORTBOTTOMCOVER.

omcoverandsecurewithfour %-x


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






)ENGINEACCESSORIES

MUFFLER

77

romeachcylinderleadthroughasingle

otheexhaustmanifold.Studsinthe cylinder

achexhaustportandat eachend—securethe

adbymeansof specialflatwashersand

stexhaustgasleaks,a two-piece,heat-

weenthecylinderheadand manifold.

sboltedtoan elbowwhichisinturn

smufflerconsistsof asheetmetaltube,

ndcontaininga seriesofbaffles.The

he frontendplateofthe mufflerandextends

d.Themuffleris supportedbyabraceon

ap extendingaroundbothmanifoldand

engineareheld insuspensionbythe

he muffler.Thistendstopartiallysilence

tstheescapeofanysparks fromunburned

Remedy

sket.

muffler.

emanifold.

races.


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





MUFFLER

xhaustManifoldandMuffler

ANDHOOD.

ecleaner(two%fi-in.wrenches)andlift

tsatcornersofhoodandpry boltsoutof

earcornerinside batterybox(%6-in.

verexhauststack.

ACEBOLTS.

oldinglowerendsof bracestoengineend

bolts backoutofbraces.


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






)ENGINEACCESSORIES

withextension

d boltsholdingmanifoldtocylinderhead

erassemblyoffstuds andawayfromengine.

owhichcapscrewsinthemufflerare sub-

ize"inthethreads,it isadvisabletoleavethe

othemufflerandmanifoldunlessrepairor

epartsis necessary.

NCH,3/4-in.

ACES.

H,3/4-in.

oldingrearbracetomufflerelbowflange

4-in.wrench).Removethetwocapscrews

ler(%6-in.wrench).Thisremovesmuffler

NCH,3/4-in.

gcapscrewsfromelbowflangeandflange

)andfourboltsfrommufflersupportstrap

isseparatesmufflerandmanifold.

BOW.

trearofmufflerto removeelbowfrom

ACK.

gcapscrewsholdingstacktofrontof

REPAIRS.

assemblingandinspectforcracksor

r,andmufflerbraces.Insomecasescracked


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





DMUFFLER

wofExhaustManifold

ywelding.Mufflerbracesmaybe weldedif

eris pluggedorcakedwithcarbonon inside

norrustedthrough,replace.Do notattempt

ncases wherecapscrewsaretwistedoffin

fcapscrewsremainingin mufflerendplates

through thecapscrewandinsertingan

screwthepartout.


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





)ENGINEACCESSORIES

NCH,3/4-in.

ACK(par.6a).

hauststackandinstallonone endof

chcapscrews.Thesetwocap screwsshould

esthatwillbe atthetopwhenmuffleris

/s-x 1Vi-inchcapscrewsintotheothertwo

capscrewsinsertedto holdtailpipebut

o theycanberemovedtoinstallmuffler

on engine.

owandinstallmufflerelbowon otherend

inginoppositedirectionfrom exhaust

hcapscrews.

SSEMBLYTOMANIFOLD.

ENCH,y4-in.

ow.Holdmufflerdirectlyabovemanifold

nchcapscrewsthroughthetwofrontholes

nge onmanifold(%-in.wrench).Install

ewsinother twoholesbutdonot tighten

etoberemovedtoinstall rearmufflerbrace

ontractor.Installsupportstrapon muffler

s(two%6-in.wrenches).A3/s-x 2-inch

3/8-x1 Vi-inchboltsgoincenterholes,anda

thebottomhole.

NCH,socket,%6-in.

n.WRENCH,socket,s/8-in.,

n.withextension

withextension


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




MUFFLER

nifoldand head.Removethenutsand

head andplacenewgasketsonstuds.Shel-

ary.Placemanifoldonstudsin cylinderhead.

tudsandstartnuts. Thentightenallnuts

ACES.

all boltsandcapscrewsinmufflerand

uts orcapscrews.Insertboltsthroughbot-

NCH,3/4-in.

oltingelbowtomanifold(3/4-in.wrench).

sandnuts ofboltsinmufflerbraces(two

RECLEANER.

NCH,open-end,%6-in.

stack.Tapboltsonhoodinto clipsand

eftrearboltmustbeinstalledthrough bat-

leaneronairinlet tubeandtightenclamp

es).


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





)ENGINEACCESSORIES

LS

180

81

norandcontrols182

84

ts185

nt187

ECONTROL.

ntsonatractorvarycontinuallywith

conditions.Toholdthetractorspeed

ardlessofthevariationinload,avariable

hichregulatesthefuelsupplied totheengine

Ahandthrottleleverpermitstheoperatorto

ntainedbythegovernor.

mple"flyball"typeinwhichthe cen-

eightsisused tocontroltheactuating

VERNOR.

datthefront oftheblower,isdivided

scontainedinseparatehousings.These

norweightsandweighthousing,thecontrol

ousing,andthecoverassembly.

edona horizontalshaftinsidethegov-

frontendof thisweightcarriershaftis

lbearing.Thesplined rear,ordriveend,

endoftheupperblower rotorshaft.The

sarethusdrivenby thisrotorshaft


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




wofGovernorWeight

mtransmitsthemotionofthe governor

ks.Thismechanismconsistsofavertical

nsideahousing.Ayokeleveris locatedat

atinglever islocatedattheupper end,

eedspringwith suitableadjustments.The

donan annularballbearingattheupper end

lowerend.

e governorweightsistransmittedto

otarymotionthroughamovableriseronthe

eyokeleveron thelowerendofthe oper-

n turn,transmittedtotheinjectorcontrol

ratinganddifferentialleversontheupper


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





W)ENGINEACCESSORIES

wofGovernorControl

vesasa carrierfortheshut-offlever

ratinglever,andcloses thetopofthecontrol

egovernordiffer accordingtotheduty

this reasoncertaindefiniteinformation

eringa replacementgovernorforaspecific

enumberfoundonthebronze plateon

overnor.

dofthevariablespeedspring inthe

housingbears againsttheoperatinglever

aft(fig.166). Theoppositeendisretained

retainerwhichinturnbears againsta

rcontrolledbythe variablespeedoperating

ottle lever.Thegovernorisdesignedto

constantspeed(withinthelimitsofthe

peratormaydesire.Such controlismade

ngscrew, forthelowenginespeeds;and

onon thespringbymeansof thethrottle

dspringlever,forhigher speeds.Thegreater

thehighertheenginespeed.


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el everismovedtotherunning position.

ntrolracksto"FULLFUEL"position.

nestarts,thegovernormovestheinjector

equiredfor idling.Theenginecanthenbe

operatingspeed,withinthelimitationsof

etensionon thespringbymeansof the

ginespeedcontrolis entirelyautomaticfrom

ponspringtension.The enginemaybe

t-offlevertothe "OFF"position.

FORGOVERNORANDCONTROLS.

llyindicatedbyspeedvariationsof the

ed variationsarecausedbyimproperfunc-

erefore,whenimproperspeedvariations

siblecausesbeforetamperingwiththe

s:

lledto besurethatthe speedchanges

gesinload.

e thatallcylindersarefiring properly.

inanyof thegovernormechanismor

ngovernorandengine;alsoseethatnobind

oltube shaftoritsmountingbrackets.With

onnectedtotheinjectorcontroltubelever,

freefrombindthroughoutthe entiretravel

ndingmaybedueto anyofthefollowing

korMoveTooHard.This maybe

eingheld tootightlyornotpositioned

eliminatedbytappingthe footoftheclamp

anda longpunch.Theinjectorcontrolrack

mpedbycontrolracklever beingoutof

ylooseningadjustingscrews.Ifbindis

waysslightlyonshaftandadjustscrewsagain

ualizing"(par.30).

ayStickor WorkHard.Thiscanbe

hebearingsofthe bracketssupportingthe

ooralinementofthebrackets,orworn-out

ingandlubricatingbearings,realining

rings.

yBeBentor LinkageBinding.The

andreturninjectorcontrolracksto the

ngonly.Neverstretchortamperwith


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)ENGINEACCESSORIES

gethetension.If springisbentor not

nk connectinggovernortoinjectorcontrol

vebind.

overnorandcontrolrodsasoutlined in

ontroltheengineproperlyafterabove

ybewornorbrokenpartsmaymakeit unfit

ithasbeendisassembledandrebuilt.

RNOR.

.(2)

NCH,open-end,%6-ia

ANDHOOD.

end,%6-in.

ecleaner(two7/jfi-in.wrenches)andlift

enutsonthehoodhold-downstrapsat each

s outofslot.Removeboltatl eftrear

%6-in.wrench)andlifthoodoff over

MCOVERANDDISCONNECTLINKAGE.

cover,unscrewhandscrewsthrough

ylinderhead.Pullcotterpin andremove

nkandinjectorcontroltube lever(fig.42).

MGOVERNORCONTROLHOUSING.

n.

pin fromvariablespeedoperatinglever

hut-offrodfromleveron coverbyremoving

Removefourscrewsandliftoffcontrol

screwdriver).

BREATHERTUBE.

oldingtubetocontrolhousingand lift

erhousing.


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pringHousingandSpring from

OUSINGASSEMBLY.

wsfromweighthousingcover(%6-in.

ectsbottomofcontrolhousingfromweight

ipfromdifferentialleverpin(pliers)and

movethetwocapscrewsholdingupperend

erhead(7/1&-m.wrench).Removecontrol

WEIGHTHOUSING.

sfromweighthousingandpull housing

ofblower.

OVERNOR.

VER,6-in.

,V2-in.

CH,hexagon,%6-in.

ocket,Il/i6-in.


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)ENGINEACCESSORIES

ariableSpeedSpringPlungerGuide

EDSPRINGHOUSING.

wsholdingvariablespeedspringhousing

vespringfromcontrolhousing(fig.150),

shersfromspring housing(fig.159).

EDSPRINGPLUNGER.

plungerfromplunger guide.Thentap

olhousingwithhammerandpunch.

ALLEVER.

sherfrompinon operatingleverandlift

60).

SHAFTASSEMBLY.

RVER,6-in.


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ugsRemovedfromControlHousing

aperedPinfromGovernor


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)ENGINEACCESSORIES

peratingShaftAssemblyRemoved

dislodgethethreeexpansionplugsat

ntrolhousing(fig. 152).Drivethetapered

werend ofoperatingshaft(fig.153).Re-

sher,andflatwasherholdingupperbearing

koutgovernorbufferspring screwatside

river).Thendriveoperatingshaftoutof

topof housing(hammerandpunch).The

bearingwillcomeout withshaft.Upper

doffshaft andlowerrollerbearingoutof

BLESPEEDSPRINGHOUSINGASSEMBLY.

NCH,hexagon,%6-in.

)fromtop ofhousing(screwdriver).

6)fromspringleverthroughhole from

ved(%6-in.hexagonwrench).Remove

fromhousing.Variablespeedspringlever

ng.

NORWEIGHTHOUSINGASSEMBLY.

or

mall

CH,socket,"/i6-in.


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ipePlugfromSpringHousing

etScrewfromVariableSpeed


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)ENGINEACCESSORIES

etainerScrewfromWeightCarrierShaft

hthousinginvise andremovehousing

hroughcapand pryingfromplace.Anew

placement.CAUTION:Donotdrive punch

unchwilldamageballbearingbeneathcap.

gwasher(hammerandchisel) and

.157)fromouterendof carriershaft

blyinarborpress andpresscarriershaft

dweightassemblymaynowbe removed

ngballbearing inplace(long-nose

mhousing (hammerandpunch).

assemblyandgovernorriserassembly

ig.162).Donot disassembleweightand

not servicedseparately.

ERNORPARTS.

Dieselfuelanddrywith compressedair.

variouspartsarefit forfurtheruse.Since

oris tocontrolthefuelinjectionbymeans


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hegovernorandinter-connectedlinkage

theinjectorcontrol,thefreedomofall mov-

mportance.Wheninspectinggovernorparts,

factthat allpartsmustworkfreelywith

ngsthoroughlyofdirt, blowoutwith

OIL,engine,SAE10, beforechecking.

slowlyfor anyindicationoftightor rough

roll freelyshouldnotbeused.The balls

aringmustbesmoothandfreefrom pits,

isetheyareunfitforuse. Thesameistrue

on,the rollersmustbeperfectlyroundand

ineoperatingshaftatrollerbearingfor

s,journals,links,andshaftfor wear;also

resswithCLOTH,crocus,forproperfit.

pendedintheir carriersufficientlyfreeto

e innerpositionbytheirownweight,and

dnotbe morethan0.002inchout-of-round.

RNOR.

n.

EEDLEVERSHAFT.

NCH,hexagon,%6-in.

haft,thenpackingring.Holdvariable

on(in springhousingwithliptowardopen-

housingandthroughlever(fig.158).Install

opointofscrewentersrecessin shaft(%6-in.

Vs-inchslottedpipepluginholeat topof

er).

INERANDWASHERS.

movedintovariablespeedspringretainer

hersinto springhousing,cupsideout.


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)ENGINEACCESSORIES

riableSpeedSpringLeverandShaft

bleSpeedSpringRetainer


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ferentialLever

HAFTASSEMBLY.

apballbearingintoplaceon upperend

plyOIL,engine,SAE10,tolower roller

bearingintoplacein controlhousingfor

erandsoft bar).Installshaftassemblyin

ofshaftpassesthroughlowerbearing,place

throundedlips ofyokedirectedtowards

mer).Lineupholes inyokeleverwithhole

in (fig.153)intoholetightly fromopposite

ammerandpunch).Installplain washer,

wtoholdupperball bearinginplace(screw-

itrevolvesfreelyinbearings.Then

gsinholes inbottomandsidesof control

LLEVER.

mblywithpinup onpinofoperatinglever

dspringclip.


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)ENGINEACCESSORIES

ariableSpeedSpringPlungerandGuide

EEDSPRINGPLUNGERANDPLUNGER

rein controlhousingwithpunchand

toplungerguide(fig.161).

EEDSPRINGANDHOUSING.

gintospring retainerinspringhousing

ontrolhousingwithtwo%(•,-x SV2-inchcap

ketbetweenthetwohousings.

WEIGHTHOUSINGASSEMBLY.

CK

,socket,*Vi6-in.

merandtapball bearingintoouterendof

pringin groovetolockbearinginplace

endofshaftin soft-jawedviseorholditon

tbearingassembly(fig.162) onshaft.

hen,usingblockofwoodon innerraceof


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serandThrustBearingon

ontoshafttight againstshoulderofshaft

randlockingwasheronendof shaftand

6-in.wrench).Bendlockingwasherover

mmerandchisel).Installnewhousingend

mmer).

OUSINGTOWEIGHTHOUSING.

putontractorimmediately,donot

9),asweighthousingandcontrolhousing

lyandcontrolhousingcoverremoved.If

arepartsstock,itis besttoconnectthetwo

nsertyokeleverthroughopeningfromrear

hyokeaheadof thrustbearingassembly

dweighthousingcoverandgasketin place

nchcapscrewstoconnectcontrolhousing

*wrench).PouraboutVipintof OIL,

governortolubricatepartsthoroughly.

OUSINGCOVER

verassemblyontopof controlhousing

ngagingin yokeofdifferentiallever.


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)ENGINEACCESSORIES

eightHousingEndCover

x%-inchscrews.Ifassemblyis tobestored,

sivepaper,ifpossible,toguardagainst

re.

ADJUSTMENT,

.

6-in.

a

WEIGHTHOUSING.

ngflangeofhousing.Slidethehousing

ontendof theblowerwithsplinedendof

)enteringthe hollowupperblowerrotor

fa-inchcapscrews,fingertightonly,

CONTROLHOUSING.

H,V2-in.


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vernorControlHousing

ountingsurfaceatupperendof control

gasketondowelsatlowerend ofcontrol

nginpositionagainstweighthousing;then

ndgasketinposition,and attachcover,

ngstogetherwithfourV4-x2Vi-inchcap

MPORTANT!Besurethatforkedlever

machinedfacesbearingonouterthrust

outerwasherandballs.Attachupperend of

ithtwoVi-x34-inchcapscrews(%6-in.

capscrewsholdingweighthousingto

our%pintofOIL,engine,SAE10,into top

ateparts.

CONTROLLINK.

ontrollinkthroughholeincylinderhead

tend oflinkonpin ofdifferentiallever.

ringclip.Connectotherendof linkto

withpinand cotterpin.Connectgovernor

edoperatingleverwith pinandcotterpin.


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)ENGINEACCESSORIES

vernorControlLink

ONTROLS(fig.166).

WRENCH,open-end,3/s-in.

-end,%6-in.

NCH,open-end,%6-in.

e,timingandequalizingofinjectors

r(ifnecessary,adjust—pars.28-30).

offknobinagainstdash.Placethrottle

n.

he adjustingscrew(A)(%6-in.

tingscrewin oroutuntila 0.006-inchfeeler

eenthespringplunger andspringplunger

ut(%6-in.wrench).

thebufferspringscrew(% 6-in.wrench).

inktowardthebufferspring soastoclose

Turnthebufferspringadjustingscrewinor

020-inchfeelergagecanbeinserted

verandthebufferspringscrewat (C).

rench).

ginallyassembled,theadjustingscrew

aspossibleandthelocknut securely


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http://slidepdf.com/reader/full/tm-9-1783b-allis-chalmers-hd-7w-engine-accessories 289/323 P u b l i c D o m a i n ,

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)ENGINEACCESSORIES

gineSpeed

snopartin theadjustmentoroperationof

be necessarytochangetheoriginalsetting

OUSINGCOVERASSEMBLY.

n.

topofhousing withpinonshut-offlever

ntiallever.SecurecoverwithfourVi-x

r).Connectfuelshut-offrodto leveron

n (pliers).Checktravelofshut-offlever

rarmcover.

RECLEANER.

NCH,open-end,%6-in.



two%fi-m-wrenches).

FNECESSARY).

CH,7/16-in.


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mentis madeatthefactoryandmustnot

tbecomesnecessarytochangetheidling

doperateuntil ithasreachedthenormal

oosenthelocknut(%6-in.wrench)onthe

rnthe screwIN(clockwise)forhigher

ockwise)forslowerspeeds(screwdriver)

obtained.Thecorrectidlingspeedis350

ghtenthelocknutsecurely.Therevolutions

e checkedbyremovingcoverfromrearof

peedofgeneratorwithaspeedindicator(be

whenmakingthistest).Ifspeedof gener-

minute,theidlingspeedofthe engineis

rgovernorareas follows:

S,arbor


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)ENGINEACCESSORIES

wofEngineControls


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PIN,ASSEMBLY

PRING

VOTSHAFT

TERPIN

DYOKE

SSEMBLY

ET

USHING,ASSEMBLY

PLATE

PLATESPRING

RACKET

ERBUSHING

B

OD,W/RODEND.ASS'Y

BUSHING,ASSEMBLY

OFFROD,W/ROD

LROD

OLRODSPRING

V

T

FTLEVER

N

ODLEVER

OD,W/WASHERASS'Y

gineControls


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)ENGINEACCESSORIES

LS

control190

.

nectedbyindirectlinkagetothevariable

hegovernorspringhousing.Motionof the

mittedto thethrottleshaft,whichismounted

wl,bymeansofthe throttlerodandlever.

otherend ofthethrottleshafttransmits

controlrodandthencetothegovernor

ever.Aspringloadeddiaphragm,withtwo

sureplates,holdsthe throttleshaftinthe

lever.

rcausesmoreor lesstensiontobe

eedspringand thusincreasesordecreases

d.

DAIRVALVECONTROL.

e airvalveintheair intakeelbowand

thegovernorisaccomplishedwiththefuel

e tractordash.Pushingtheknobinagainst

veandmovesthefuelshut-offleveronthe

otheopenposition(back).Pullingthe knob

movesfuelshut-offleverongovernorto

rd).

efuelshut-offandair valvecontrolcan

ws:

ushedin—to runningposition—check

verstopassemblyisin position(fig.169).

blyshouldbecenteredinthe holeinthe

ot,the shutoffknobisprobablyhittingthe

n"A"andmoveshut-offleveruntil theball

eintheshut-offlever.Nowadjust linkage

reconnectedat"A."

runningposition,checktoseeif the

contactstherearofthe slotinthefuel

oosenthe clampscrewonthegovernorfuel

theleverpin untilitcontactstherear end

eclampscrew.


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)ENGINEACCESSORIES

IR

essentiallyasmallpressureoilburner

burnerproperis mountedintheengineair

ryairfor combustionfromthecharging

flameheatedairinto theenginecylinders

eat.Thedeviceconsistsof twoassemblies.

essurepumpandignition switchandis

shineasyreachof theoperator.Theother

raynozzle,filter,ignition coil*andignition

replaceoneofthehandholecoverplatesof

ckvalveislocatedoutsidethisunitto prevent

supplyfuelunderpressuretothe

geis filteredbeforereachingthespray

the pumpisconnectedtotheenginesupply

andthe fuelpumpattherear oftheblower.

etweentheammeteroutletpostandoneter-

ntheburner.Theotherterminalof thecoil

er unitcover.Thepumpplunger,whennot

ositionby aspringmechanismwhichcan

plunger knobaboutaquarterturnto the

epumpisoperatedby handanddelivers

henozzleof burnerunit.Thisfuelis ignited

nerpointswhentheswitchonthe dashis

sition.Operationoftheair heaterincon.-

rstartingisdescribedin TM9-783B.


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E— MSDIUMTRACTORMl

)ENGINEACCESSORIES

Iftwoor threeheaterpumpstrokes,

nginewithwide-openthrottle,failtopro-

tostopcrankingandcheckforpossiblecauses

eengineis inrunningorderandcranking

minute,orover,theheatershouldbeinves-

nition,and(B)poorfuelspray.To make

erelementshouldberemovedfromits posi-

andreconnectedoutsideofengineinsucha

erationcanbe easilyobserved.

BurnerUnit.Reconnectheaterunit—

edashswitchon.Coil interruptershould

nuoushotsparkshould occurbetweenthe

urnthedashswitchoff;a cone-shapeddis-

mittedfrom thespraynozzlewhenthepump

wotestsshouldNOTbe madeatthesame

a considerableflameandwilligniteany

material.

OESNOTVIBRATEWHENSWITCHIs

dirtorcarbon,andwiringfor looseorbroken

becleanedwithfinesandpaperoraspecial

setaftercleaningtogiveVk-inchgap,with

mheld againstthecoilbody.

PORCELAINOFELECTRODE.Checkgap

reelectrodetoapproximatelyVainch.If

eporcelainelectrodebyremovingretainer

rodeassembly.Careshouldbetakenthat

rtheelectrodeisnot droppedoutandlost.

bywashingoffinSOLVENT,dry-cleaning,

fanycarbonaccumulation.Reassemble

GED.Thiswillbeindicatedbyexcess

mporbyfailure ofnozzleto"fog"thefuel.

emovedtoclean(par.194).

mp.Failureofthepressurepumpcan

checkvalvesand(2)plungerpiston cups.

rgecheckvalveassembliesarethreaded

rrowindicatingthedirectionof flowis

dthesuctioncheckvalve(Vi-lbvalve)is

alvesareofthespring-loadedballtype,and

embledwithoutbeingdamaged.Thevalves

ry,byforcingSOLVENT,dry-cleaning,

ablepump.


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




thersaremoldedfromaspecialoil

diftheyshouldbreakorbecomeworn,they

icateparts.Whenanypumpparts need

beremovedfromtheinstrumentpanel,dis-

ed(pars.193and196).

H,open-end,%6-in.

H,socket,%6-in.

n.

it.

H,open-end,%6-in.

n.

ineatrear ofcheckvalveoncover

s).Removecapscrewfromclipholdingfuel

ate(%6-in.wrench).Removethetwocap

cylinderblock(V2-in.wrench)andslide

ad canbedisconnectedfromcoil(3/s-in.

rfurtheronleadoutof way.

.

erofunitandpull unitoutawayfrom

mp.

H,open-end,s/s-in.


n.

and173).

-in.WRENCH,open-end,Vs-in.


tsupplytank.Disconnectbothinletand

(%-,%-,%6~>an(^%fi-m-wrenches).


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





)ENGINEACCESSORIES

irHeaterBurnerUnit

blyfromDash.

fromturningwithonepairof pliers,

bfrompumpbodywith theotherpair,and

lyoutofpump body.Pumpbodycannow

ash.

nit.

n.

n.

.

ipholdingfuellineto bodyofburner

efuellinefromelbow(%6-in-wrench).Dis-

n.


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




fromelectrode.Thenremovethetwoscrews

it (screwdriver)andliftoffcoil.

ElectrodeAssembly.

nd,ys-in.

rnut(s/s-in.wrench)andpullinsulator

ombody,takingcarenottolosecopper

nscrewfuellineelbowandremove(pliers)

bly.

NCH,socket,s/s-in.

wireelectrodeontip,frominsideofbody

oveburnernozzle(%-in.wrench)and

le(screwdriver).Jarfilterand springfrom

ePump.

NCH,open-end,V2-m.

.

ssembly.

nd,%-in.

screwdriver)and"leathers"fromendof

ve"leathers"andseparatorfromretaining

tisapparentinthe nutorlockpin,this

asfollows:Unscrewknobfromplunger

epinfromadapterandunscrewadapter

-in.wrench).Slidenutoff endofplunger,

andlockspring(whichcomeoutinsideof

).

dy.

H,%6-in.

awsinviseand removeinletandoutlet

%6-and%^-in.wrenches).Removeoutlet

washerfrompumpbody(%6-in.wrench).


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





)ENGINEACCESSORIES

wofAirHeaterBurnerUnit

TS.

ts,clean,and drywithcompressed

Donotusesteel wireordrillto clean

of thegroovesandorificesareveryimpor-

endernozzleuseless.Inspectall parts,

rtheruse.Cleanall fuelpassages.Cleanand

ghlycleanpartsofpumpin Diesel

llfuel passagesareopen.Examine"leathers"

ks,orevidenceofwear.Ifanyofthese condi-

ers".

.

nd,%,-ia

NCH,open-end,s/8-in.

Hsocket,ys-ia


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eAssembly.

NCH,socket,s/s-in.

screwdriver).Insertspringand filterin

erendoffilter out.Positionwasheragainst

ewnozzleassemblyintobody(s/8-in.

withwireelectrodeintosideof heaterbody

ch).

ctrodeAssembly.

nd,s/s-in.

eend)to heaterbody.Tightenelbow

(pliers) inpositiontoconnectfuelline.

owershoulderof electrode,andassemble

eningretainernutfirmly(s/8-in.wrench).

h.

e.

NCH,open-end,71(!-in.

withtwoVi- xs/s-inchscrews(screw-

onwiretoelectrode.Connectfuellineto

-inchcapscrewinclipto holdfuellineto

ch).

mp.

CH,V2^n.

NCH,9/i6-in.

.

dfirst,over retainingscrew.Slipsepar-

ather".Slideother"leather",smallend first,

separator.Screwretainingscrew,with

ttached,intoendofplunger.


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)ENGINEACCESSORIES


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fDisassembled).

all

CH,V2-in.

plockpinspring intoholeoninsideof

hole,recessedendfirst,ontopof spring.

screwdriver,andslidenut, hexagonend

nger.Attachknobadapterandtightenuntil

ngerline up(V2-in.wrenchandpliers).

plynon-hardeningcementtoknobadapter,

ntoadapter(pliers).

veAssembly.

CH,%6-in.

erofoutletcheckvalveadapter,and

peningofpumpbody(%6-in.wrench).

ntotheadapter(Vi6-in.wrench).NOTE:

d"2"andthe arrow,alsomarkedonthe

romthepumpbodywhenassembled.

e.

ide openingofpumpbodywitharrow

pumpbody.(Thisvalveismarked"V2".)

ump.

nd,s/s-in.


n.

nd,7/s-in.

bodyas faraspossible.Placethreaded

dashfrom inside.Softenpumpplunger

SAE10,andcarefullyenterplungerinto

sare notdamaged.Tightenthenut(pliers

ghtenjamnutagainstinside ofdash(T/a-in.


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)ENGINEACCESSORIES

-in.WRENCH,open-end,s/s-in.


sidefitting onpumpbody,usingthe

usethesmallerwrenchestoconnectthe

in endofpumpbody.

t.

H,open-end,%6-in.

n.WRENCH,socket,%6-in.

ylinderBlock.

nderblockandinstallnewones.Set

n blockandsecurewithspecialcapscrew

elLines.

H,open-end,%6-ia

6-in.

oil.Theninstall coveronairheaterwith

ews(Vi-in.wrench).Insertlowercover

heckvalveandthenthroughcover.Con-

eckvalve(%6~and%6-m-wrenches).

hclip onfuellineandinto cylinderblock

.


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IR

arriedina boxontractorfender,isa

nedtoheat theengineprevioustostarting

withtemperaturesbelowthoseinwhich

ble withtheairofonly theairheater.An

verisprovidedon theengineinplaceofone

overs.Thecovercanbeopenedandpre-

peropening.The loweropeninginelbow

andburned gaseswhileheaterisin opera-

ytheheaterwill raisethetemperatureof

tthecylinderwalls,whereengineoil has

nceandhardcrankingoftheengine.After

onfor aspecifiedtime(seeTM9-783Bfor

eatermaybewithdrawn,inletelbowcover

inregularmannerwith airofairheater.

werhousing,andburner housingareall

mountedintop, airpressurepumpinrear,

side.Ahingedcoveroverthefan inletregu-

dfor burningoffuel.Thefuelfilter and

paratechamberandconnectedtofuelcom-

eincasting.Alead fromblowerorfan

hichisinsertedina socketprovidedintrac-

to beused.Theairpressurepump ishand-

ureforoperation.

TS.

pressurethroughthevalve,filter,and

reisanample supplyoffuelinfuel supply

hasbeenraised toproperoperatingpressure

tooperatewilllikely befounddueto

aynozzle.Inthat event,thesemustbere-


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)ENGINEACCESSORIES

annozzle withdrillbitor steelwire,as

drender ituseless.Withspraynozzlere-

neiffilteriscloggedby pumpingairpressure

enfuelvalve.Ifagoodflow offuelisevident,

tion.Iffuelfilteris clogged,replace.Ifunit

uelpassagesandblowout withcompressed

remaybe duetodry,cracked,orworn

oftened,ifdry,bysoakingin warmoil.Re-

damaged.

runningas soonasplugonlead isin-

itdoesnot,examinewiresandconnections

open-end,

NCH,pipe,10-in.

H,socket,3/4-ia

BASSEMBLIES.

ttachingfanmotortohousing(%6-in.

nfromhousing.Removeairpressuregage

chingscrews(screwdriver).Removesixcap

nut atrearofhousing(%6-in.wrench)and

ousing.Pull cotterpin,removehingepin

romfront ofhousing.

LEANDVALVEASSEMBLY.

Hsocket,3/4-in.

erofspoutopening(%-in.wrench).Re-

of housing(1-in.wrench)andjarfilterfrom

efiltercompartment(%-in.wrench)and

ousing.Packingcanberemovedfrom

atthistime.


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ORBLADE.

ess

sedscrewsandremoveairdeflectorblade.

Hpipe,10*in.

b(%fi-in.wrench)andremoveknoband

Unscrewtube(MN)fromair pumptube

ndseparateplungershaftandtube. Un-

ndoftube(s/8-in.wrench).

%-in.

.

NCH,open-end,

Hpipe,10-in.

ferto fig.174forrelativelocationof

Hpipe,10-in.

et valvewasheronspringandvalvegas-

tubeup andscrewvalvenutintoend of

epumpshaftinvise(largerend up)and

crewlocknut onshaftasfar aspossible,

tandtighten.Screwlocknut tightlyagainst

nshaftotherendupin viseandinstallin

aft:spring, largewasher,cupleather(lips

ndnut,and tighten(V2-in.wrench).Soften

shaftassemblyintopumptube,takingcare

mptubenutin viseandscrewtubeintonut


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SZ


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)ENGINEACCESSORIES

BLY.

ptubenut withCOMPOUND,jointand

thissurfaceandcoatother sideofgasket

eninsertpumptubeintohousingand se-

withsixVi-x%-inchcapscrews(%6-in.

ORBLADE.

ess

centerofspoutopeningwithtwocross-

VEASSEMBLY.

kingonneedlevalve.Screwneedlevalve

entightenpackingnut(pliers).Insert nee-

aterbodyfromtop (withholeforspray

ter),usingnewgasketat shoulderonlower

ut intoopeningforfuelfilterand screw

vebodytightly(%-in.wrench).

LEANDFUELFILTER.

H1-in.

edlevalvebody(%-in.wrench)using

erin loweropeningofhousingunderneedle

n.wrench)usingnew gasket.

eaterbodyandinstallpin throughhinge

rpin.

TOR.

pofheaterbodywithtwo 1A-x%-inch


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REGAGE.

gnewgasketcementedonbothsides, in

6-32screws,no washers.

hDieselfuelandpump pressureupto

ndlet burnashortwhile.Thenclosespout

re intosocketoncowloftractorandtest for


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)ENGINEACCESSORIES

sts202

203

CLATURELISTS.

ndlubricatingmaterials;

ndmiscellaneousrelateditemsSNLK-l

s-ChalmersHD-7W)SNLG-125

clatureListsareastabulated

NL'sis maintainedasthe

rSupplyIndex"OPSI

CATIONS.

850-15

-ChalmersHD-7W)Diesel

-ChalmersHD-7W)equip-

-ChalmersHD-7W)Gar

-ChalmersHD-7W)power

dseatsTM9-1783C

bricating,andweldingma-

uedby theOrdnanceDe-

M10-575

S10-37

ctorTF9-171

ctractorTF9-172


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DieseltractractorTF9-169

el tractractorTF9-170

systemoftheDiesel tractractor....TF9-173

ance.

nanceTM10-525

nceFS10-53

ecautions,accidentsTM10-360

esFS10-58

nsTM10-545

nanceFS10-54

rstechelonmaintenanceTF11-558

10-580

M1-455

ingFM21-6

ngineTM10-570

dmotorizedarmyequipment

ment....AssociationofAmericanRailroads

quipmentAR850-18


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)ENGINEACCESSORIES

07

8

onalin-

mainte-

8,10

127—128

tion311

r sys-

val..131-132

229

-

..187


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118—121

101—102

4

1

5

talla-

allation109

kage,lu-

brication20

ssembly

mainte-

,removal273

allation134

helons6


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W)ENGINEACCESSORIES

d

em-

bly83

fler..262

ion281

-

01

-

6-228

fler....264

bly79

em-

ings,

ationon

sket,


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ver

helons11

fler

64-265

helons8

n239

lation.

bly

y79

ngand

ly,main-

s8

ring,in-

6

on56

34

helons..10

bly78-80


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)ENGINEACCESSORIES

s268

s271-272

oval,93

assembly

6

assem-

yeche-

elt192

sem-

187

sem-

179—181

7

79

—186

91

191

90

5

07

99


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oler

61

6

28

bly....79

embly83

bly....86

nifold

8—29

2

oil

lfil-

2

9

helons8


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instal-

stalla-


)ENGINEACCESSORIES

nance

mbly,as-

aner)

(See

ment63

64—166

installa-

kets

on74

3

er,re-

embly

83

bly,main-

s7


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.223—225

225-226

222—223

228

ng

230

helons8

—222

—58

mbly

fler262

—272


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Tm 9-1783b Allis-chalmers Hd-7w Engine Accessories

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Transcript of Tm 9-1783b Allis-chalmers Hd-7w Engine Accessories