TM 5-9722 SHOWER-UNIT, TRAILER MOUNTED, EC-3

7/30/2019 TM 5-9722 SHOWER-UNIT, TRAILER MOUNTED, EC-3

1/209

UAL

D,

RHEADS,

LEC-3

ONSANDPARTSCATALOG

EPT.1944

Publ

icDomain,Google-digitized

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UAL

ND

AILER-MOUNTED,

WERHEADS,

LEC-3

ONSANDPARTSCATALOG

EPT1944

PublicDomain,Google-digitized

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3/209

ept.1944

eld,Trailer-Mounted,WithHeater,8Shower

delEC-3,ispublishedfor theinformationandguidance

fWar:

olseeFM21-6)> i


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acities12

sumptionsforanEightHourDay12

ate13

4

17

9

d19

5

6

ve27

Shackles30

mper31

riveEnd31

aftHousing31

l31


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ature37

7

ngWhenIdle37

dTheirCorrection42

43

e49

ercurySwitchBroken50

tor'.51


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57

peed58

61

inCombustionChamberandonValves66

emoval66

3

wingHead)73

emoval73

e75

erPressureservice80

erPumpPressure80

eplacement81

wingEnd)82

ent82

End82

ctoryFiringEnd83

ent85

ater85


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86

0

5

mentandCleaning97

rodeAdjustments100

4

4

4


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06

ySwitch106

hNewSwitch107

09

4

heave115

119

dAirCleaner119

9

19

odandPistonAssembly119

9

trolLeverandGovernorSpring123

Weights123

gerPushRod123

23

23

ushRod125

Weights125

125

ControlLeverandGovernorShaft125

t125

ConnectingRod127

ofValves128

29

se130

randAirFilter130

ead130

andStarterRopeSheave131


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ndFuelTank131

gandWiring131

Using132

ore143

ut146

147

ripArms149

shing152

s154

0

62


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71

6

0

182

84

ckAssemblies186

188

emblies194

mblies196

98

4

eCoupling205

6

Rotor207

08


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bleFieldShowerUnitisaself-containedoil-fired

roduce16gallonsof warmbathingwaterperminute,

howerheads.Formobility,thedisassembledshower

emountedontop oftheunit,togetherwithdischarge

iremachineismountedas anintegralunitona two-

el,mountedasacomponentpartof thelunettetowing

positionwhiletheunitis beingtowedbutisloweredinto

eleasedfromthetractor,andaidsin maneuveringthe

heheaterisequippedwith fourcompletepassesof

ssbeingthelargecentertube orcombustionchamber,the

wogroupsoftubes ateithersideofthe firetube,andthe

ow.Theventpipe, orstack,isapart oftheouterhead

ter.

ssure-atomizing,single-nozzletype.Fornormal

stalledatthe factory,shouldbeused,capacity,fourgallons

e rawwaterisverycold,thefive-gallonnozzlesupplied

talled.Wherewarmsupplywaterisencounteredand

e three-gallonperhournozzleshouldbeinstalled.

econtrolactuatesasolenoidvalveintheoilsupply

or closingitasrequiredto maintainpracticallyconstant

byconstantelectricsparkwhilethemachineisin

videdbya generatorandahigh-tensiontransformer

ofthepowerplant.

anks,oneateachsideofthe unit.Pipingfromthe

oarrangedthatthe burnersupplymaybedrawnfrom

siredbytheoperator.Halfof eachofthetwoside-

evotedtotoolstoragecompartments.

ppliedby ablowerhavingashutter-typedamper

portioningthevolumeofairto thefuel.

pwaterfor theunitisdrawnfrom astream,lake,or

nhoseanddischargedintothe heatershellwhereitab-

stiongaseswithinthe tubes.Waterthusraisedtothe

ureisforcedbytheincomingwaterpressurethroughthe

werstandand outthe8showerheads.

tis providedbyasinglecylinder,air-cooledWis-

odelAK,direct-coupledtothewaterpump.Powertrans-

pump,andgeneratoris bymeansofV-belts.

nMotors,ModelAK.

H-Sg",A-18020.

-1295.

8,18mm.


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nued

0056-1,3600RPM.

Departure-ND87504.

ll/2P.O.

s-AdamsonSealmaster,NP-16.

cator,CRC480.

onarch,G-49-B.

.,ModelOLK-C.

bricator,No.683-3,HOVolt.

inneapolis-Honeywell,T-415AX

ster,511-AJ,110-10,000Volt.

tion,7.50x20,8-ply.

5Pounds.

o.44530D1

Co,No.46138.

Co,No.46137.

n,No.3920

n,No.382.

ken,No.'.3979.

mken,No.585-A.

nds.

APACITIES

.

nsEachTotal50Gallons.

s.

Gallons.

hes(W)x 16inches(H)x27 inches(L)

ONSUMPTIONSFORANEIGHT-HOURDAY

40Gallons.

cludingdrainingandrefillingevery

lons.


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SBEFOREOPERATING. NEVERLIGHT

CIRCULATINGTHROUGHHEATERAND

HEADS.IFHEATERFIRED WHENNOT

WATERITWILL BEDAMAGEDBY

EATERINFUEL OILLINESFROM BOTHFUEL

ALVETOBURNER.

ATERWITHWATER,MAKING SUREALLSUC-

ARETIGHT.

ROMSHOWERS, STARTBURNERBY OPENING

EROUTLET ONLYENOUGHTOCLEAR SMOKE.

MAYBERAISED ORLOWEREDBY ADJUSTING

OFTHERMOSTATICFUEL OILVALVEAS

TPIPE FROMHEATERSHOULDBE PARTLY

OTPROVIDE SUFFICIENTHOTWATER,

UNTILPROPERTEMPERATURE IS

FUEL,ADD1CUPNO.20LUBRICAT INGO IL

NEUSED, ADD1OT. PER5GALLONS.


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S

fillerplugwithgood,cleangasengine

F.oroveruseS. A.E.No.20oil. Fortemper-

seS.A.E.No. 20oil.Forcolderweatheruse

eltankwithgoodcleangasolineofan octane

bottomoftank.

asewhenenginestarts.

fnecessary.

valveopeningisapproximately%to1'A turns.In

urnmorefacilitatesstarting.

enginewarmsup.

agneto holduntilenginestops.

REDUCESREPAIRS

revery50hoursof operation.Sparkpluggap

ditionsa goodaircleanerisnecessary.

LLTIMES.

ORATION

SD-53-B


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delEC-3


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RVICE

ig.2)

onatthebankof astream,reservoir,river,orother

uctionlift willnotbegreaterthan 15feet.(Note:Only

conditionswill asuctionliftof20 to25feetbe possible).

teris entirelyamatteroflocalconditions.However,if

byawindbreakor otherhousingarrangement,fuelcon-

ndmoresatisfactoryoperationassured.

hosen,theshowerrackshouldbesolocated,forsanitary

tewaterfromdrainingbackinto thestreamabovethesuction

eamPlanView

nsmakeitnecessarytolocatetheshowerstandassembly

eatingunit,thetotal suctionanddischargeheadofwater

n bedonebyremovingearthfromunderthe wheel

kingupthewheel onthelowside.This willleveltheunit

ut earthunder,orbyblockingupthe casterwheelatfront

fromfronttorear.


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ngArrangement

LES


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NGUNIT

D(SeeFig.3)

eoperatingequipmentpackedontopofthe unit,

ose,carefullyinspectthestowagearrangementsothat

kedfortravelinthe samemanner.Unlockthepadlockson

d alsothelockonthe slidingdooraroundthecircularend

thedooras farasitwill go,exposingthewaterpump

thelowerrearcurvedsectionofthe hoodoverthepower

napwhichholdsthe hingeandhaspinthe lockedposition.

aticbracketlatchescatchandholdhoodopen.Standon

he wing-nutsandhold-downclamps(A)thatsecurethe

nit atthepowerplantend.Alsor emovethewine-nuts

t thetowingendoftheunit.

TAND(SeeFig.4)

tandassembliesfromthetopof theunit.Laythe

esonthegroundwithshowernozzles pointingupwardand

end.Withthepipe wrenchfromthetoolbox,drawthe

eeelbowisthewatersupplyend andshouldfacethe

hortarunof hoseaspossiblebetweentheunit andthe

pletedassemblysothatshowernozzlesfacethe

kentopreventdirt frompluggingshowernozzles.Next,

portshouldbelifted intoplacewhiletheshowerrackis

oninsertedinto thepipesleeveattop ofshowersupport.

ughtupandfastenedintoyokeonshowerrack bymeans

ertedintothehole inthepinwill preventitfromslip-

emainingshowersupportisnextpositionedina

showerstandisassembled,it shouldstandasnearlylevel

arthunderitssupportsasrequiredin leveling.

endfromwatersourceto thesuctioninletonthe water

tthe suctionliftmustnotexceed15feet.Removehose

etandcouplefemalehoseend tomalecouplingonpump,

ergasket isinplacein eachcoupling.(SeeFig.5).

thhosespannerwrench.Removeiy2inchbrasssuction

ttachto maleendofsuctionhose,atwatersource.Sub-

he hoseinwater.(SeeFig.6).

an savehimselftroublebytakingprecautions,as


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ctedtoWaterPump

eArrangement


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idoutinas straightalineas theterrainpermits.

euptight.

whenplacedinwater,will becoveredatalltimes

conditions,andsubmergeddeepenoughtoprevent"pull-

nrocksor othersupporttoprevententryofsand and

thatleaves,weeds,sand,orother streamrefusewill

m asmall,shallowstream,locatesuctionstrainerat

deepest.

owedandreasonablecareexercisedinpreparation

shouldbeassuredagoodsupply ofwaterundersustained

g.7)

eto theheatingunitaslocalconditionswill permit,

argehoseshouldbeconnectedtothe45-degreeelbowonthe

endshouldthenbe connectedtothedischargeoutletonthe

beenremoved.Allcouplingsshouldbedrawnuptight

ner wrench.

nectedto'Unit


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erN.

oleO.

erP.

Pres-U.

V.

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ulb


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EPARINGUNIT

8)

dwith aJaegerModeliy2inchPO centrifugal

type,so designedthatcloggingisreducedtoa minimum.

riSeal" replacestheconventionalpackinggland.The

edtogetherbyaspring whichprovidesuniformpressure

Lubricationis theonlyattentionrequred.

n theupperportionofthe primingchamber,to

mleakingbackpastthesuctioncheckvalvewhenthe

belowthe primingvalvesothatit maybereadily

ecessary.

tedin antifrictionbearings.Fastprimingisac-

rculatingjetwhichshuts offautomaticallyassoonasthe

imeplugin teeontopofpump dischargepiping,

ntilitoverflows.(SeeX,Fig.8).This operationwillprobably

hasbeenoperatedrecently,becauseenoughwaterwill

helltoinsuresatisfactorypriming.Anothermethodof

movethestrainerfromthesuctionendof thehose,andraise

epumpinlet,then pourwaterintothehoseuntil itover-

eopenend ofthehoseandsubmergeit inthewater

trainer,underwater.The checkvalveinthepumpdis-

gvalveon theinsideofthe pumpwillholdprime.

VERHEATING,THEWATERPUMPMUST

WATERINTHEPRIMINGCHAMBER.

e unitshouldbeclosed.Thesevalvesare:

datthebottomofthe heater.

ve,locatedinheaterfeedwaterline,directlybelow

of powerplant.

ouldremainopen;itis locateddirectlyabovethe

g.8)

9)

ontheright sideoftheunit,with anon-leadedgaso-

octaneratingof atleast67.Tankcapacityisthree


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NER

VE

kandFuel Strainer

e tankisafuel strainerfittedwithawing-handleshut-

sflowto thetank.Thisvalveshouldbeopenedfully at

nerbowlto fillandfuelto flowbygravitytothe

esoftheunit, withfueloil.Capacityis25 gallons

50gallons.

edforusewitheitherNo.1, 2,or3 U.S.Standard

atedgasoline,orlubricatedkerosenemayalsobe used.

No.2,maybeusedin extremelycoldtemperatures.

shouldbe.avoided,asthepressureatomizingnozzlecan-

ssaryforpropercombustionunlessthefuel ispreheated.

used,onequartofNo.30 lubricatingoilmustbe

allonsofkeroseneorgasoline,toprovidelubricationfor

eburnerwithgasoline,extraprecautionsmust

it failtoigniteon thefirstoperation,thecombustion

ofthecarburetedor vaporizedandhighlyexplosivegases

orchfora newstart.Withthefuelsupply shutoff,run

damperopen,foratleast15 minutesbeforeagain


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PREPARINGUNIT

ail toaddonequart oflubricatingoiltoeachfivegallons

nitanddirectlybeneaththe powerplantarefour

esthatcontrolthesuctionandreturn ofthefuetoil to

vesbeneaththe waterpumparethereturnvalves;the

ethesuctionvalves.ALLFOURVALVESSHOULDBE

,EXCEPTWHENTHEUNITISTOBEMOVED

eeventthatoneof thetanksshouldbecome

dreturnvalvesinthe fuellinestothattank shouldbe

edbyremovingtheplug intheteein thesuctionlineat

atingend oftheunit,is abayonet-typegauge

minethe oillevelinthe tank.

E,Fig.8)

etothe burnershouldbecheckedtoseethatit is

g.8)

fromthefuel tankstoafuelstrainer mountedonthe

earthewater pump.Thestrainer,havingtwoscreen

whichmayhaveenteredthesystem.

owsthroughcoppertubingtothesuctionport ofthe

enterof thepowerplant,betweenthegeneratorandthe

ernalgeartypeandis drivenbymeansofaV-Belt

.Thedischargefuelline fromthefuelpumpleadsto

OR(SeeJ,Fig.8)

ountedonthe backofthecontrolpanel,onthe end

has beenadjustedatthefactorytodeliver fueloilto

f100poundspersquare inch.Excessfueloilisby-passed

o thetank.Apressuregaugemountedonthe regulator

eoil fedtotheburner.

g 8)

essureregulatortotheburner isasolenoidvalve

theburner.Thisvalveisnormallyclosed,andcan be

currentpassingthroughthe coilofitselectromagnet.Fuel


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REPARINGUNIT

The solenoidvalveisthermostaticallycontrolledbythe

hewaterleavingtheheaterhas onthetemperatureregulator.

8)

dvalveand theburnerignitionissupplied bya60

enbyV-Beltfromthegasolineengine.Whendrivenat

hegeneratoroutputis 550wattsat110volts.

rissuppliedconstantlytothe primarywindingofthe

C,Fig.8)mountedontop oftheburnerassembly.The

voltageto10,000volts.Fromthesecondaryterminalsof

onwirespassthroughinsulatorsin theburnerflangeand

elain-coveredelectrodes.Thehighvoltagebetweenthe

acedy8inchapart,producesanarc thatignitestheatomized

e.Thisarcing isconstantduringengineoperationand

hesolenoidvalveopensandfuelis deliveredthroughthe

eswitchmountedontheoutletboxof thegenerator

matictemperaturecontrolswitchmountedonthefront

redin serieswiththesolenoidvalveandcontrolits

enttotheprimarywindingof theignitiontransformer,

withthesolenoidvalve,isalsocontrolledby themanual

Withthemanualswitchclosed,theautomaticcontrol

OR(SeeL,Fig.8)

risanautomaticcontrolandconsistsoftwo parts.One

o thewaterwithintheheaterat apointjustbelowthe round

eratingendof theunit.(SeeY,Fig.8) Theotherpart

on thecontrolpanel,andcontainstheswitchmechanism.

b areconnectedbyasmallcoppertube.The

eethatthis tubingisnotcut,bent,or flattenedinanyway,

mpairtheproper operationofthecontrol.

yprovidedwitha mercurytubeswitchwhich,when

iesof levers,makesandbreakstheelectricalcircuittothe

at thefactorytomaintainwatertemperaturewithin

proximatelyfivedegrees.Whenthetemperaturewithin

greesF,thehigh limitofthecontrol,theelectricalcircuitis


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tureSetting

oidvalvetoreturnto itsnormalorclosedpositionand

ngtotheburner.Whenthe temperaturedropstothelow

ectricalcircuitis againclosed,therebyopeningthesolenoid

o theburner.

setting ofthecontroltoa higherorlowertempera-

nthe slotinthelarger ofthetwofillisterhead screwson

andturnit totheright(clockwise).Turnitto theleft

rthesetting,(See Fig.10).

Fig.8)

normallybeleftin the"ON"position,sinceinthat

ectricalcircuitandwillpermitcurrent toflowtothe

atureregulatorswitchcloses.

the"OFF"positiononlywhentheoperatordesires

,sinceinthe"OFF"positiontheelectricalcircuitto the

dthevalvecloses,therebypreventingfuelfrom passing

FVALVE(SeeR,Fig.8)

meterisawaterpressurereliefvalve withitssideout-

ghthepowerplantbaseplate, towaste.Thisvalvehas


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N

rytoopen andrelieveatapressure of30poundspersquare

erdischargebecomeobstructed.

fill crankcasewithoiltothebottomedgeof thefiller

%pints. Ifpossibleoilshouldcorrespondto thetabula-

ricationGasolineEngine".(SeeG,Fig.11)

edas describedunder"LubricationMagnetoOiling".

led withoilasdescribedunder"Lubrication

K,Fig.12)

gures11and12)

SeeA&B.Fig.II)

ssuregun.

PurposeGrease,U.S.ArmySpecificationNo.2-108.

rsof operation.Greasebeforeplacingunitinstorage.

RINGSHACKLES(SeeD,Fig.II)

ssuregun.

PurposeGrease,U.S.ArmySpecificationNo.

rsof service.Greasebeforeplacingunitinstorage.

Fig.II)

acked.After1096hoursof service,removewheel

nstallnewpartsinplaceofworn ordamagedparts,repack

alPurposeGrease,U.S.SpecificationNo.2-108,and

deraxleasclose towheelaspossible,sothat the

punit untilthewheelcanbe rotated.Removesixnuts

wheelcanthen beremoved.

ewingitcounterclockwise(left).Removecotterpin

nscrewnut,andremovewasher.

ng,outer bearingcup,andinnerbearingcupwill

erbearingwillremainonthe axle.Removeouterbearing

rbearing offaxle.Thegreasesealshouldalsobe removed

washbearingsinfueloilor keroseneandcarefullyclean

asesealonaxleshoulder,withleatherfaceout.After

bearing,slideiton axle,withtapertowardaxleend.With


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N

slideon wheelhub.Aftergreasingouterbearing,insert

e end.Installwasherandcastellatednut,andwhilewheel

l tensionstopsthewheel,thenloosennut tonextcotter

y1/6turn)andinstallcotterpin. Thewheelshould

eobstructionmaybe lodgedinthebearings.Cover

grease,and screwonhubcap.

ATDAMPER(SeeF,Fig.II)

suregun.

PurposeGrease,U.S.SpecificationNo.2-108.

controlarmoffoftopshutter leafpinandraisetop

asefittingonbearing.Aftergreasing,slidecontrolarm

Greasebeforeplacingunitin storage.

DRIVEEND(SeeE.Fig.II)

suregun.

PurposeGrease,U.S.ArmySpecificationNo.2-108.

andbeforeplacingunitin storage.

HAFTHOUSING(SeeL,Fig.12)

.


romgreasecuplocatedonshafthousing,andfillcup

wnuntilpressurepointis reached.

ur hoursofoperation,andrefillwhenempty.Fill

ybeforeplacingunitin storage.

AL(SeeM,Fig12)

.


andfillgreasecupwithgrease.Screwdownwing-

nits retractedposition.Replacecapongreasecup,then

tely.Thisreleasestheplungerandforcesthegreaseinto

apagainandscrewdownwing-nut.Refillgreasecupwith

ackoffwing-nutabouttwoturns.

severy4operatinghours.Refillcup whenwing-

off.Refillcupandbackoffwing-nuttwoturns before

eG&H,Fig.12)

dviscositycorrespondingtothoselistedonthefollow-


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mySpec.No.S.A.E.No.

egreesF.OE-302-104A30

egreesF.OE-102-104A.10

.Adddieselfuel orgasolinetoOE-10butdo not

bouty4pint.

bottomofenginedrainpipe underpowerplant.

,replaceplug.Drainwhileengineiswarm.

atsideof crankcaseand,withfunnelinplace,fill

ole.Capacity1Y4pints.

hfourhoursandif necessary,oilshouldbeaddedto

.Thecrankcaseshouldbedrainedcompletelyafterevery

ncrankcasewhenplacinginstorage,attachingtag

ed."

eK.Fig.12)

ofair cleanerbypushingthewireclip tooneside.

tothelevelof themarkonthecup.The frequencywhich

and refilleddependsentirelyuponlocalconditions;how-

whenaccumulationofsedimentisevident.Undernormal

eacheighthoursof operation,usingsametypeandgrade

rankcase.

ig.12)

edevery256hours byremovingthescrewcovering

verflowing.Useagradeandtype ofoilidenticalwith

ase.

gpreliminaryarrangements,theunitisreadyfor

esconnected.

he burnerfueloilvalveareclosed.

illed.

sopened.

tion.

ontrolswitchsetatlowsetting,105degreesF.

efilledwithoil,andunitlubricated.

.13and14)

buretorairinlet horn.Thechokeopensautomatically


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e-offEnd


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BreakerPoints

ve,whichwillbefounddirectlyunderthe carburetor

closedposition,thenopenedapproximately%to1%

tingis sometimesfacilitatedbyopeningtheneedlevalve

engineruns thesmoothest.

e manualrope-pullstartertype.Removethe

box,inserttheknottedendintothe notchinthestarter

onthe sheaveinaclockwisedirection.Turnstartersheave

sedirectionuntilstoppedbycompression.Withonlya

g,graspthe woodenhandle,andexertaquickpulltoward

rankshaftoverclockwise.

tonthefirst attempt,theoperationshouldbere-

etoraccidentallysnapsopenduringcrankingitshould

threeturnsoftheengine.If fuelbeginstodripfrom the

uldbeopened.Itis necessarytochokethecarburetormore

her.

afterrepeatedapplicationsoftherope starter,the

checkedThesparkplug,toseethatno carbonorother

tweenthepoints.Thespark plugwire,toseethat itis


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oandtothesparkplug, andthattheseconnectionsareclean.

also becheckedtoseethatis isnotpuncturedatsome

d."Themagnetobreakercovershouldberemovedand

dtoseethatthe openingis.015inchandalso toseethat

free fromforeignmatter(SeeFig.15).

el linefromthefuelstraineris obstructed,by

satthecarburetor,withtheshut-Offvalveinthe fuelstrainer

loosenedatcarburetor,opentheshut-offvalveinthe

fuelflowsfreelythroughtheline.If itisfoundthat some

mayberemovedbyblowingout thelinewithcompressed

nremovedfromtheengine.Next,checktoseethatthe

ecapisopen.This maybedeterminedbyblowing

oleisplugged,theobstructionmaybe removedbyuse

ent.

eedshouldbe2050 rpm.CAUTION:Thespeed

exceed2050rpm,since thiswouldcausethegenerator

oilandthe ignitiontransformerandmightburnthemout.

opbelow2000rpm, asnotenoughcurrentwouldbegen-

ricalcontrolsproperly.

RE

gup, thefuel

elfromthetanks,

00poundsonthe

sureis aboveorbelow

oil pressurerelief

commendedpressure,

goncapat thetopof

iletheengineis run-

nthe slotofthe

andturnscreweither

pressuregaugewhile

Fig.16).

urnscrewout;to

screwin.

djustedto100

withawrench,setit

ons;ifanyare

nch.


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TINGUNIT

e,thewaterpumpshouldbeginto pumpwaterfrom

o determineifthepumphasprimedand ispumping

eratorshould opentheauxiliarycoldwatertake-offvalve

ust belowthepump.Ifasteadystream ofwaterflows

properlyand thevalveshouldbeclosed.

rappearswhenthevalveis openeditshouldbe

d,andthepumpagainprimedas describedintheparagraph

so,checktoseeifallhosesuctionconnectionsaretight,

tart engineagain,aspreviouslydescribed.

owerheads,partiallyclosethehotwater discharge

ckleof waterflowsfromtheshowerheads.

S,Fig.8)onthe blowerinlet.

SeeE, Fig.8).

gnitethefuel atonce.Byoperatinghandle(S,Fig.

heblowerinlet sufficientlytoclearsmokeemittedfrom

mustbesuchas willprovidesufficientairinproportion

isequippedatthefactorywitha four-gallonnozzle;

ditionsrequiremoreorlessheat,thenozzle canbere-

egallonnozzle,fromthespareparts.In allcases,to

o theburner,closetheshutteruntilsmokeappearsat

enoughtoeliminatesmoke.Neverallowburnerto

gthisadjustment,theoperatorshouldbearit inmind

smustgothroughfour passesoftubesbeforetheresults of

llbeseenat thestackoutlet.

sof firing,theproductsofcombustionstrikecold,

cesandthemoisturecondensesintowater,whichmaydrip

ter.Do notassumefromthisconditionthatthe heater

nditionwilldisappearafterafewhoursof operation.

mthefuel combustionwillraisethetemperatureof

willbeindicatedbythethree inchrounddialFahrenheit

etopcenterofthe heaterfront.

to heatcoldincomingwatersufficientlyforbathing

mperatureofthewatersupply,but isusuallyaboutten

otwaterdischargecontrolvalveshouldbeadjustedas

paragraph.


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OWN

MPERATURE

dto raisethetemperatureofsixteengallonsofwater

sFahrenheitperminute,thusprovidingabouttwogallonsof

adperminute.

alveis fullyopened,thewaterpumpwillbe per-

pacity,andagreatdealmorewaterthanis requiredforthe

hroughtheheater,resultingin toolowashowerwater

nordertocutdownthisvolume,theoperatorshould watch

nthe waterpumpdischargelinewhileheadjuststhe hot

lasteadypressureofabout 10poundsisreached.

estoapproximately110degreesF.the burnerwillauto-

emainoff untilthewatertemperaturedropstoabout105

n beautomaticallyignited.Theunitwillcontinueto

houtrequiringthe attentionoftheoperatorsolong asthe

ontainfuel forengineandburner.

mitting fromthestackatfrequentintervalsaredue

urseachtimetheburner ignitesorisextinguished,and

peratorthattheunitis performingproperly.

valve.Whenthe flameisextinguishedandthe

gedofgasesgenerallyinabouttensecondsholddown

untilthe enginestops.

ION

viouslydescribed.Removestrainerfromendof

suctionanddischargehoses,drainthemthoroughlyand

werstand rackontopofthe unit(SeeFig.17).Screw

dsuctioninlets.Disassembleshowerstandbyfirst remov-

ts.Next,turnover theshowerheadassemblysothat

yassemblyonthe ground.Withawrench,disconnect

edshowerstandontopofthe unit,firstlayonesec-

emblyon therackasshowninFig. 18,thenlaythetwo

opas showninFig.19.Layther emainingshowerhead

er threeunits,andfastenbymeansof theholddownclamps

hownin Fig.20.

EEZINGWHENIDLE

utdownbetweenoperatingperiods,andlikelytobe

sbelowfreezing,completelydrainthewatersystemasfollow*


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D

ngArrangement

AssemblyLoadedonUnit


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D

rtsLoadedonUnit

adAssemblyLoadedonUnit


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gthe drainvalveatthebottomof heaternearthe

nwater pumpdischargedrainvalvelocatedinthe

ectlybelowthewaterpump.Removethedrainplug atthe

elowthe suctioninlet.Whenthepumphascompletely

oopenthehotwaterdischargevalve.

E

edfora limitedlengthoftime,suchas 30daysor

uresshouldbefollowed.

describedin thepreviouschapter,"PrecautionAgainst

gasolinetankbyremovinggasfilter sedimentbowland

valve.

mfueltanksbyopeningdrain cocksintheteesin

ks,thenclosedraincocks.

enginecrankcasebyremovingpluginthe one-fourth

baseplatedirectlybelowengine,then replaceplug,attach-

estating"CrankcaseDrained".

dalsobe removed,theoildrainedandthebowl

ectaboutatablespoonfulofcylinderoilinto sparkplug

oil,drain,thenwrapthemin waterproofpaper

s.

preventingentryofmoistureandrenderingthe

rpumpandcasterwheelshouldbelubricatedas

tion",usingthetypesandgradesofgreasesasoutlined.

tandandpackdischargeandsuctionhosesonunit

sshownin Figs.17,18,19,and20.

for deadstoragerefertoParagraph37,Heaters,

eparationofEngineersEquipmentforStorage,issuedby

ceOffice,P.O.Box1679,Columbus,Ohio.

ribedunder"LimitedStorage"and"DeadStorage"

entbytowingorrail shipment.

eltoitsretractedpositionand hooktowingringto

Nodisassemblyofanykindis required,sinceunitis


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Wheel


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PlantEnd

DSPEEDSHOULDNOTEXCEED50

n flatcarorinboxcarandsecureto floorbyblocking

igs. 21,22,and23.

rationofCorpsofEngineersEquipmentforExport,

aintenanceOffice,P.O.Box1679,Columbus,Ohio.

IESANDTHEIRCORRECTION

ng,orifburner failstolight,thefault maybewith

sufficientfuelintanks.

oseethat pressureisnotless than100pounds.

strainer.I tspurposeisto removeabrasiveforeign


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44/209

LARITIES

ammerhead),todislodgeforeignmatterthat maybe

his treatmentfail,removethehexagoncapatthetop of

eis running,useascrewdrivertoturnpressureadjusting

espring pressureontheplungerwhileagaintappingwith

adjustasrequiredtoobtainthe properpressure(See

urnscrewout;to increaseoilpressure,turn

remediesproveunsuccessful,stopengine,dis-

viceasfollows:(SeeFig.26).

nectorinfuellinetofuel pump.Detach

nreturnlineto fueltank.

Removesupportbracket.Disconnectbrass

lve.

asket(H).Removeadjustingscrew(D).

sebut donotcompressvisejawsaroundit.

onnetgasket(J).Withdrawspringguide(G), spring

mblybyfirstunscrewingseat(P)andremov-

ewlocknut(L)fromseat(P),removelocknutgasket

E),andvalveliftingspring (N).

ndreassembleasfollows:

) intoseat(P),followedbyvalvestem

),andlocknut(L).Slipseat gasket(O)overseat(P),

tobody(A).

fbody(A),followedbyspring(K) and

et gasket(J)intoplaceandscrewbonnet(B) down

ewinadjustingscrew(D).

deviceontheunit,andconnectcoppertubing

ulateadjustingscrewaspreviouslydescribed,

ure.Whenproperpressure isreached,replacecapgasket

ace.

estedremediesproducetheproperfuel quantity

pis wornordefectiveandanewpump mustbeinstalled.

eblocktoreleasetensionontheV-belt,and remove


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ECTIONALVIEW

elPressureRegulator

vesheavefromdefectivepumpshaft.Disconnectcoppertubing

dischargeports,andremovebushingsandelbow.Remove

sinchcapscrewsthatholdthepumptothefoot andslide

movingfootfrombase block.

ce,fasteningittothefootwith thetwocapscrews.

argelines.ReplacesheaveandV-belt.Afterpumpsheave

base blockcapscrews.

atingandrequiresno serviceattention.However,

servicingforanyreason,itshouldbe replacedasdescribed

returnedtothefactoryforrepairs.In extremecaseswhen

orepair thepumpinthefield, proceedasexplainedinthe

urnerbutdoes notatomizethroughthenozzle,the

order tocleanthenozzleandits strainer,bythefollowing

onignitionwiresatthe transformer.Removefour,

ews,oneateachsideofthesquareburner mountingflange

passes.Disconnectcoppertubingconnectorinburner

e burnershut-offvalve,andwithdrawburnerassembly

ter.


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Assembly

nElectrode


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ip

nwiresfromtheelectrodesatthe connectorby

one-fourthinchroundheadmachinescrewsthatholdthe

clamp,thenslideout theporcelainelectrodeassemblies.

enches(SeeFig.29),oneto fitthesteelnozzletip

xagonfittingonthebrass nozzlebody,removethenozzle

fingers,removenozzlestrainerscreenfromnozzletip,

movetheinternalcorefromthe nozzletipproper.(See

ofthenozzle tipandtheslottedparts oftheinternal

so thatthesmalloilgrooveswill notbedamaged,particu-

nozzletipproper.Cleanthe nozzlescreencarefully,re-

oallowfree passageoffuelthroughthenozzle.Replace

ascrewdrivertoset itintightly,but donotuseexcessive

NOFTHEFUEL,ITISESSENTIAL

EBETIGHTLYSEATEDINTHE

s


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deAdjustments

n,screwingitintothenozzle tiponlyfinger-tight

zzlebody,usingwrenchesaswhenremoved.Seattip

age.

tothe electrodeclamp,spacingthemasfollows:

ch.

nch forwardofthenozzletip.

ch abovecenterofnozzletip.

chfromfrontsurfaceofthediffuserplate.

ntheelectrodeclamp,therebysecuringtheelec-

ctrodesbymeansofconnectors,andpasswires

nthe burnermountingflange.

rintoblowerhousingopening,andsecureit with

onnectignitionwirestothe terminalsonignitiontransformer.

valveis normallyclosed,andwillopenonlyif

hroughitscoil.I fthestrainer,pressureregulator,and


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ECONTROL

mporarySplice

ngproperly,butno oilisbeingsuppliedto theburner,the

ing energizedandtheplungerisin aclosedposition,

fueltothe burner.

energizethecoil maybeduetoany ofthe

allwiresareproperlyconnectedand

CTIVE

checktoseeifswitchbladeis makingcontact

ffound defectiveinstallanewswitch,butifit shouldbe

switchimmediately,thedefectiveswitchcanberemoved

onmadebysplicingtogetherthethreewires(See Fig.32)

lectricianstapeorinemergencywithadhesivetape.

BEDONEONLYASATEM-

NEWSWITCHINSTALLEDAS

AUSETHISSPLICEISEQUIVALENT

WITCH;ANDASCURRENTWILL

UGHTHISTEMPORARYCON-


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G

latorControlBox

DVALVEANDIGNITIONCANNOT

EDUNLESSTHEWIRESARE

OLMERCURYSWITCHBROKEN(SeeFig.33)

ositionofmercuryintheswitch.Mercuryis

dof theswitchwhentheshowerunitis cold,orbelow

wsmercuryin itsoffposition,suchaswhen temperatureof

egreesF.).I ftheglasstubehas beenbroken,anew

nstalledasfollows:

leadsand,withthepointof aknife,prythe

mercuryswitchneverattempttobreakitloosewith the

ontape,whichwilltakethe placeoftheambroidcement

nalswitch,shouldbewrappedaroundthenewswitchbefore

ninstallingthenewswitch,careshouldbetaken toplace

on astheoldone soasnotto changethebalance,since

ythrowtheentirecontroloutof adjustment.

leadstheoperatorshouldbearin mindthai

oallowfreemovementbetweenthe"On"to"Off"positions.


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OR

SFORMER

oSolenoidVatve

NERATOR

belt occurs,thecurrentfurnishedtothe

tbeenoughto lifttheplunger.Tocorrectthe slippage,the

shouldbeloosenedandthegeneratorpulledawayfromthe

ht.Thesheavesshouldthenbealigned andthenuts

esolenoid,removethegeneratorterminalbox

overedconnectionoftheblackwirefromthetemperature

efromthe solenoidvalve.(SeeFig.34).Ifa voltmeteris

gebetweenthesplicedconnectionandthetwo-wireconnection

metershouldindicate110 volts.Ifnovoltmeteris

whenconnectedbetweenthesetwopoints,shouldburn

tageis loworthelampburns dimly,orthereisno

es inthegenerator.Replaceterminalboxcover,but

es.

ycausedbypoorbrush contactswithcom-

tator.

movetheterminalcoversatthe endofthe

veend.Therearetwo setsofbrushes;twoforA.C.and


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53/209

shes

e solidsliprings.TheD.C.brushesrest on

htheenginerunningobserveif thereisanarc orsparking

ushes(therectangularbrushes)contactthecommutator.Ifno

commutatorisblack,the commutatorisdirty.Asmall

3/0 or4/0)foldedovertheend ofasmall,thin

tocleanthecommutator.(SeeFig.35).Holdthe sand-

mutatorwhiletheunitis inoperationandmoveit slowly

horttime,theblackcoatingwillbe sandedoffanda

ear.Donotsand morethanisneededto securethisclean

eworn,newbrushesshouldbeinstalledas

e springthatbearsonthe brushandthe

dfromits holder.Removethescrewthatholdsthebrushlead

mblyandthebrushwillthencomefree.To installanew

ideinthebrush. Attachbrushleadtobrushrigging assembly.

s,(SeeFig.37)removethe metalprotecting

caltubularshapedprojectiononthefrontbracketand,with

heinsulatorcap.Thiswillreleasethebrush anditsattached

ew(or replacinganold)brush,besure thatthe


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hfitsthat oftheslipring. Replaceinsulatorcapand

eshave

enoidvalvestillremains

at thesolenoidcoilis

placed,asfollows:

ctwir-

eneratorterminalboxand

lexibletubingandremove

oilhousing.Removescrew

mcoilhousing(C).

thenbe liftedoffof

wdriver,pryoffsteel

that securescoil(G)

coil cannowbere-

ted.

sing,

ssthenewcoilwires

hegeneratorterminal

tothe manualswitch.

cedto theblackwire

trolswitch.

eratingproperlybuttheburnerfailsto lightand,

rvationporthole,the operatorfailstoseean arcbetween

urner,itis anindicationthateithertheignition trans-

oltageis beingsuppliedtoit,sincethe arcingacrossthe

tantwhiletheunitis running.

ovetheterminal-boxcoverandbarethe three-wire

verfromthemanualswitch.Ifa voltmeterisavailable,

nthesetwoconnections,(SeeFig.39).Thevoltageshould

terisavailable,a110volt bulb,whenconnectedbetween

urnwithfull brilliancy.

eis novoltagepresent,thegeneratorshouldbe

viousparagraphs,"Nocurrentfromgenerator".

hetroubleliesinthe ignitiontransformer.Break-

reand,uponfailureit shouldberemovedandanew

d


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OLT

oIgnitionTransformer

onignitionwiresfrombindingpostsatfront

ckoftransformeranddisconnecttwoleads

necttheflexibletubingattheside ofthetransformer,

oughtheside.Remove45degreesqueezeconnector.

ssecuringthetransformershouldberemoved,

dandthenewoneseatedin itsplace.

ounted,replacesqueezeconnector,pass

former,andtightenup flexibletubing.Thenewtransformer

generatorleadsandthebackcoverreplaced.

econdarywindingterminalsatthefrontof


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IRREGULARITIES

mtheshowerheadsorthe pumpisnotpumping

eseitherin thesuctionlineorin thewaterpumpitself,

akethefollowingobservations:

ift doesnotexceed15feet.

nectionsandthegasketsonthepump forairleaks,for

pumpfromdeliveringwater.

rtosee thatitisnot buriedinmudorcoveredwith

ftthestrainerout ofwaterwhiletheunit isrunning,for

equire reprimingthepump.

ngchamber,andfillif necessary.

umpsuctioninlet,andinspectsuctionlinecheck

eventthelossof prime,whenthepumpisidle, eliminating

ve.It consistsofaweightedcdmpositionfabricflapthat

dflapvalve.Thevalvehangsvertical,therebypreventing

eat.

rimingchamberwithwaterunlessitremains filled

hecheckvalveisnotseatingproperly,waterwillrun

ning,syphoningouttheprimingwaterwithit.

andforcetheflangesapartallvalvepartswillthen

cis damaged,eitheraroundtheseatorat thehinge,

lled,asdescribedunder"WaterPump"inMaintenance

removesuctionhose,fill pumpwithwater,and

ea handtightlyoverthesuctionopening.Ifthe pump

strongsuctionwill befeltinabout thirtyseconds.Ifno

sketsonthe intakeflangesandthesealon theimpeller

tothe pumpatthesejoints.

mpshellisa primingvalvemechanismconsisting

edthattheforceofthe pumpdischargewillliftitand close

oonas thepumphasprimedandstarts pumping.A

othatsedimentcan bereadilyremoved.

holeorcausethevalvespring tobecomeinoperative.

alveorcleanouttrashand sediment,removethe

ngcarenottotearthe gasket.

lturns byhandtoseethat itrotatessmoothly.Ifit

aleormudthathas settledontheimpellerbladesand


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58/209

oBreakerPoints

medup.Closethethrottle untiltheminimum

blished.Theidler needlevalvecontrolsthequantityof

dischargehole.TurningOUTtheneedlevalvegivesa

gitIN givesaleanermixture.Turntheneedlevalvein

eddecreases,thenturnit outslowlyuntiltheengineruns

throttlepositionwillpermit.Ifthe engineidlestoofast

he needlevalve,thedesiredspeedcanbeobtainedby

screw.Ifa satisfactoryadjustmentcannotbeobtained,

eis fullyopenandispermittinga fullflowoffuel.

GHSPEED

ateorhighspeedis controlledbyanadjustable

g,usthefollowingprocedure:


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61/209

park

onsystemis inpropercondition,withthepossibleexcep-

ENT

bemaintainedat.025 inches.Afterapproxi-

operationtheplug shouldberemovedandinspected.The

eanandthe plugthoroughlywashedinalcohol,gasoline,or

pointsshouldthenberesetto .025inches.Toclosethe

decontactwithasparkplugwrenchorothersuitable

sparkplugis madetheignitionwireshould

e insulationshowssignsofcrackinganewwireshould be

fthemagnetototheengine andalsototime

earsaremarkedas follows:Themagnetogearhasachisel

whichmustbelinedupwith asimilarmarkonthe

tionholeisprovidedonthecrankcaseofthe engine.The

urnedtoa positionwherethechiselmarkisvisible through


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gPoints


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nerCup

iledtooperate,it shouldbedisassembledandthecheck

aned.Ifthepumpwillnot operatesatisfactorilywhentested

eplungerwith ascrewdriver,(SeeFig.48)acompletenew

directedintheMaintenanceSection.

han oil-bathtypeofaircleanerwhichcleansthe

rburetor.Theaircleanershouldbecleanedatregular

thedustconditions.Inextremelydustyconditionsitmay

eaircleanertwo ormoretimeseachday.Thecupat the

ldberemoved,andthe oilandaccumulateddirtinthe

e emptiedandthecupcleaned.Thecupshouldthen

wnonthecup,withthe samegradeofoilas usedinthe

g.49).Itisalso necessarytocleanthefilteringunitof

onsistsofafine-meshwirescreenthatpreventslargebits

ngthecarburetor.Toclean,thethreescrewsthathold the

mustbe removedandthebodyofthefilter pulledfreeof

mentthoroughlyingasoline,andreassemble.Donot

heair cleaner.


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ELEADDEPOSITS

badeffectontheengines,butthe onewhichwill

sis thedepositonthevalves.Thesedepositswill build

faofaninch inabout64hoursof operation.Thisbuild-

onouncedwithenginesrunningconstantlyatthesame

operatingintermittentlyandat varyingloadsandspeeds.

hathicknessofaboutfa ofaninchtheywill crack

htheywillagainbuild upandrepeatthisprocessindefinitely.

cursonthebeveledseatsof thevalves,leakagewill

he flameofcombustionwillblowthrough,burningand

ditionoccursinall typesofengines,whetherair-cooledor

hodhasbeenfoundforpreventingthedepositsfromforming.

isleftbehind intheengine.

orremovingthesedeposits withouttakingtheengine

onsistsofinjectingwaterintothe enginethroughthe

engineishot andrunningatnormalspeed.Thewateris

whenit strikesthehotwallsofthe combustionchamberand

process,thel eaddepositswillcrackaway.Muchofthe

edischargedwiththe exhaustgases,butsomewillfind

ubricatingoil.ITISTHEREFOREABSOLUTELYNECES-

ASEBEDRAINEDAFTERTHISOPERATION

.OTHERWISE,DAMAGEWILLRESULTFROM

WITHCONTAMINATEDOIL.

terinjectionoperationisjustbeforeit isnecessary

ilin thecrankcase,whichshouldbedoneaftereach64

anifold,thecarburetorbeingbolteddirectlytothe

re,benecessarytoinject thewaterdirectlyintothe

ng,ajtertheair cleanerhasbeenremovedfromthecarbure-

RESH(NOTSALTWATER)ANDCLEAN,

IT;OTHERWISE,THEENGINEMAYBE

g.51)

uirt oilcan,injectwaterintothecarburetorair intake,

hot,andrunningatnormalspeed.

handandtheotherhand onthecarburetorchoke

carburetoruntil theengineslowsdown.Beforethe

waterinjectionandpartiallyclosethe carburetorchoke,

sspeed.Then openthechokeandcontinuewaterinjection

bouta pintofwaterhasbeen used.

a spoutorificeofabout3\inchi ndiameter,which

oil cans.


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S

sometimescalledinsometypesofboilersor hot

yor,insome cases,weeklycleaning.Becauseoftheprin-

owerUnit,thetubesdonot requireperiodiccleaning.How-

uesafter every1096hoursisgoodpractice.Thisis done

(towingend) andinspectingthefluesforcarbonforma-

vealathickdepositofsoot andcarbon,thefluesshould

e followingparagraphs.

mthestudsattachingtherearouter head(towingend)

orotherpryinginstrument,freethe headfromthe

etattachedtoheatershellif possible.

eadweighsabout100poundsandthereis abrick

moveit andlayiton thefloor,brickup.

three-sectionfluebrush.Twosectionsofthe1/4

andthe thirdsectionisthebrush.Assemblethe handle

sh.

omtheend oppositethefiringendofthe unit.

bes


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sHeadGaskef

bes,forcingthebrush throughtheentirelengthof

theoppositeend,then pullthebrushbackwardtowardthe

acontinuousmovement.

ERSEBRUSHDIRECTIONWHILE

WILLSTICK.

bewithfull-lengthsweepsuntilbrushcomesout

dgedandpushedintothe bafflechamberwillbeblown

ainin operation.

T

shouldbeinspectedtosee thatithasnot beentorn

damaged,orifitshouldbe replacedforanyotherreason,

vailable,brusha coatoflubricatingoilmixedwithgraph-

ut anewgasketfrom-fainchasbestospaper 36by44

g.53. Brushacoatoflubricatingoiland graphiteonhead

kin theouterheadandtheheater innershellisformed

ghtemperaturecement.Ifcementisavailable,removethe

rickandheatersurfaces,andapplya newcoatingofcement.


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ERTUBES

defective,repairasinstructedinlaterparagraphs

work".

ightall outerattachingnuts,beingsureawasher

S

ertubesshould beperformedbyaskilledboiler-

owever,theseinstructionscovertheoperationfully,and

essingpropertoolscanperformtheoperation.

TOWINGEND)

emovedasdescribedinpreviousparagraphsheaded

EADREMOVAL(SeeFig.54)

atingpositionanddisengagethehoodsupporting

rtrack.Next,removethepin inthetophinge andsetaside

G),blower(U),and fuelpump(F)sheaves.

nutsinfueloilsuctionline anddischargetubingat

re regulator(J).Removetwocapscrewsholdingfuel

ate,and removefuelpump(F)andbaseblock.

ousingpanelthatcoversthegasolineengine,then

g(W)inthe gaslinetothe carburetor.

ineexhaustpipingunderpowerplantbaseplate.

oldingenginetobaseplateandremoveengine(T)taking

ockfromflexiblecoupling.Thetwoy&inch steelshims

uldbe tiedtotheenginefor safekeeping.

pumpdischargelinejustbelowwaterpressure gauge

pipepassingdownthroughthe baseplate.Removethe

mpbaseplateandremovepump(O).

ornutintheburner fueloillineat thesolenoidvalve

tsandwashersthathold theblower(U)tothe heater

withburner(V)and ignitiontransformer(C)attached

etaside.

rbulblocatedinthecenterof theheaterfrontdirectly

A)shouldberemoved.CAUTION:Whenremovingthis

carefulnot tobendthetubing,sincethat wouldimpair

thin thetube.

re,itisadvisableto removethethermometer(A)to

pipepassingthroughthebaseplateshouldnextbe un


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eter

tHole

mer

Pres-

r

alve

rBulb


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dForFrontHead Removal

eeelbow,andthesafetyvalve(R) anditscouplingalso

rm waterdischargelineattheheateroutlet,just

chargevalve(D).Unscrewdischargepipepassingthrough

veandpipe.

vebeen removedasshowninFig.55,the front

ff.

D

thehexagonnutsfrom thestudsattachingthefront

hell.

orotherpryinginstrument,freeheadfrom theheater

tachedtoheatershellif possible.

eadweighsabout100poundsandthatthere isa

e, removeit,andlayiton thefloor,brickup.

hethirdor fourthpass,thebottomsteelbaffleplate

splateis tack-weldedatthetwoendsandmustbe broken

UBE

dcoldchisel,removebeadandweldfromboth tube

butbeverycarefulnotto injurethetubesheet.Then


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Tube


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Sheet

e End


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ERTUBES

slitinbothtube endsasshowninFig. 57and58.

n thefreeendsofthe tubeasshowninFig.59.

ewaterside ofthetube,itwill benecessarytodrive

he scaleasthetubeis driventhroughthetubesheet.After

tubesheethole,leavingclean,roundhole asshownin

houldextendl/4 to%inchbeyondtheouter sides

flaretheprojectingsectionofthe tubealltheway

.

esbeing replaced.Asingleflaringhammerblow

ne,to holdthetubesinplace.

flaredwith ahammer,usethebeadingtoolto roll

tightlyagainstthefluesheet asshowninFig.62.

eplacementisto expandthetubetoforma shoulder

tubesheet.Atube expanderwillbefoundinthe toolbox

easshownin Fig.63.

shouldbeperformedwiththeutmostcare,for upon

thetubewill sealtightly.

HWATERPRESSURESERVICE

rreplacementoperationshavebeencompleted,the

-testedforleakage.Themostsatisfactorymethodisthe

uretestasfollows:

terdischargehole,thesafetyvalvehole,thether-

mperatureregulatorbulbhole.

available,installthe waterpumpdischargepiping,

uregaugeandcheckvalve.Connecttheoutsidepressure

build upthepressurewithintheheater shellto30pounds.

depressure,thecheckvalvewill maintainthepressure,

ethetube isrolledatthe fluesheetsshouldbeclosely

HWATERPUMPPRESSURE(SeeFig.64)

eis available,thehydrostatictestmustbeperformed

urewithinthe heatershellbymeansofthe waterpump

he baseplateandassemblethepumpdischarge-

its place,andconnecttheflexiblecouplingtothewater

tthefillerblockis inplaceandthatthe engineandpump

ment.Connectthegasolinelineto theengine.

setowaterpumpand,ifpossible,a barrelofwater


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E

thEngineAndPump

shthe watersource,sinceashortsuctionliftis essentialin

ssure

eheater,buildinguppressureto themaximumpressure

pproximately30pounds.Whenthepressurenolonger

tion,stoptheengine.Thecheckvalvewillhold pressure

yinspecttheentirecircleswherethetube isrolledatthe

nd,repeattheoperationwiththe beadingtoolandtube

kage,thenagain testforpressure.

pressuredoesnotdrop afterafewminuteswait,

eat thebottomoftheheaterand drainitofall water.

he firingendoftheheater.Also removeengine,

mpdischargepiping.

REPLACEMENT(SeeFig.54)

teonfiringendof heaterandtack-welditinplace.

entarounditsedges.

d,beforeapplyinganew^ inchasbestospapergasket,

phiteonheaterflange.Installthe newgasketasshown

oilandgraphiteon sideofgasketfacingouterhead.

lwashersandnutsonall studs,andtightennuts

schargepipingandvalve(D).


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S

ed

,orotherpryinginstrument,freeheadfromthe

etattachedtoheatershellif possible.

breakoutthe remainingpiecesofbrickinthehead,

assthroughthesupportingframeand securethebrick.

urn outtheboltsanddiscardthem.

oltswiththe endsflushwiththeinner surfaceofthe

tisweldedto theouterhead.(SeeFig.65).Insert the

or,orcuta newoneiftheold oneisdamaged,whilethe

r.Afterapplyingacoatofhightemperaturefurnacecement

ks,setthebricksin place,engagingthemachinebolts

ebrickandscrewthemin asfarastheywill go.With

,cutofftheprotruding endsoftheboltsflush withthe

temperaturecementtotheprotrudingedgesofthe

theheadgaskettosee thattherearenobreaks,the head

ts tightenedwithwashersunderneath.

FRACTORYFIRINGEND[SeeFig.66)

ecesofcementwitha hammerandchisel.

y,sufficientcommonPortlandcementandwaterwith

ushedfirebrick.


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ELLER

eEnd

not seatingproperly,waterwillrunoutof thepump

e,takeoffthenutsand removethecheckvalvebody

hed.Iftheflapfabricis damaged,eitheraroundtheseat

eplaced.Removethehingeplate (B)andthehinge(C).

DandE) fromthehinge(C)andattachto newhinge.

kvalvebody(A)bymeansof hingeplate(B).Replace

mp,aftergasket(M)has beenputinplace,andthen

69)

mpisa built-inprimingvalvemechanismconsisting

edthattheforceofwaterwill liftitandcloseoff there-

e pumphasprimed.Acleanoutholeisprovidedso that

moved.

eorcausethevalvespring tobecomeinoperative.

alveortocleanout trashandsediment,removethe

akingcarenottotear thegasket(G).

veforreplacement,removethroughthecheckvalve

old theelbow(H)andgasket(J) inplace.Thetworound

valvespring (K)inplacecanthen beremovedandthe

andthescrewsreplaced.Replacetheelbow(H)and

utsthroughthe checkvalveopening.Replacetheclean-

late(F).Replacecheckvalve.

readedto theprojectingendoftheimpellershaft.


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AL

ction

stunscrewthenuts holdingthepumpbody(A)to

ond,removethetwocapscrewswhichholdthepumpbody

odytendsto sticktothesupporthead,DONOT

wwith ahammer;instead,screwashortlength(about2

onopeningandstrikeasharp,light blowdownwardon

.Thiswillfreethe body.

fromthe shaft(E),holdthecrankshaftso that

pipewrenchtotheimpellershaft.Thewrenchhandle

orsolidsupport.Thenplaceapieceof woodagainstthe

dstrikeasharphammerblow.This shouldloosentheim-

crewed.

EHARDENOUGHTOBREAKTHEIM-

eFig.71)

eimpellerandthesupportheadshouldbe between

regulatedbyplacingshimsbetweentheimpellerandthe

0and71)

deupofaspring-loadedsealwashers,V-shaped

ewhichfitsinto arecessinthe supporthead(B).WHEN

MPLETESEALUNIT.

Lubri"seal,first removetheimpelleraspreviously

anthenbe pulledoutoftherecess.


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OR

elPressureRegulator

asket(H).Removeadjustingscrew(D).

se,but donotcompressvisejawsaroundit. Remove

ket(J).Withdrawspringguide (G),spring(K),and

blybyfirstunscrewingseat(P)andremovingseat

nut(L)fromseat(P)removelocknutgasket(M)and

ndvalveliftingspring(N).

)

ndreassembleasfollows:

nsertedintoseat(P)followedby valvestem(E),

knut(L).Slipseatgasket(O) overseat(P),andscrew

fbody(A),followedbyspring(K) andspring

et(J) intoplace,andscrewbonnet(B)downtightly,

adjustingscrew(D).

dconnectcoppertubingandpipe.

ulateadjustingscrewaspreviouslydescribedto

e.Whenproperpressureis reached,replacecapgasket

yi nplace.


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LTAGE

OR

SFORMER

ToSolenoidValveCoil

alled theshaftofthepump shouldbeturnedby

otbind.Incasethat tightspotsarenoted,tap theouter

th thehammerhandleuntilthegearsturn smoothly.

dor replacedbyreversingtheprocedureasoutlined

cleanlubricatingoilenthesealseat beforereplacing

teningnutOL41,itisnecessarytocreateabout7 pounds

dthe seal.Thisisequivalenttocompressingtheseal

led,it shouldbetestedforfreeoperationby revolving

valveis normallyclosedandwillopenonlyif

hroughitscoil.Obviouslythen,if thestrainer,pressure

all functioningproperlybutnooilis beingsuppliedtothe

coilisnot beingenergized,andtheplungerisin aclosed

assageoffueltothe burner.

energizethecoil maybeduetoany ofthefollowing

emadebeforeattemptingto dismantlethesolenoidvalve.


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g

d

e.

curyswitchisbroken.

.

OIL[SeeFig.76)

closedduetoanyofthe abovereasons,orifthe

hevoltagetothe solenoidvalvecoilshouldbechecked

heterminalboxcoveron thegenerator,andbarethe

etweentheblackleadfromsolenoidvalveandthe black

gulator.Removethecoveronthemanualswitch.

,checkthevoltagebetweenthesplicedconnectionand

etweenthemanualswitch.Thevoltageshouldbe110volts.

a 110voltbulb,whenconnectedbetweenthesetwopoints

cy.

.77)

tthevalveremainsclosed,itis thenobviousthatthe


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VE

houldbereplacedas follows:

onnectwiringtosolenoidvalve,atgeneratorter-

ch.

ndremovesqueezeconnectorfromcoilhousing.

nameplate(B)fromcoilhousing(C).Housing

lvebody(D).

teelwasher(E)and bushing(F)thatholdcoil

etube (H).Coil(G)canthen beremoved.

washers(E),bushing(F), housing(C),

(A).

w coilthroughthesqueezeconnectorandflexible

minalbox,the yellowleadgoingtothemanualswitch,

licedto theblackleadfromthetemperaturecontrolswitch.

g.78)

tispossiblethat smallparticlesofdirtmaybecome

erandtheseat,therebypreventingthe solenoidvalvefrom

dsuchaconditionbefound,proceedasfollows:

sshouldbebroken,andthescrew(A),nameplate

er(E),bushing(F),and coil(G)removedasdescribed

s"ReplacingCoil".

epipingandremovevalve.

dbushing(J)shouldbe pryedlooseandremoved.

yin avise,loosentheplungerguide nut(H)

sket(N).

houldthenbe removed,afterwhichseat(M)

ionandcleaning.

plunger(L),seat(M)and plungerguidetube

ntmaybeavailable.Donotuse abrasivesorhard,sharp

gprocess.

embledasfollows:

gerassembly(L).Replacegasket(N)and

(N)is freefromforeignparticles.Carefully

nut(H) topreventoilleakage.

andbushing(J).

connectpipingtoit.

andwiringasdescribedinpreviousparagraphs


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nElectrode

p

Y

s


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deAdjustments

ofthenozzle tipandtheslottedparts oftheinternal

so thatthesmalloilgrooveswill notbedamaged,particu-

nozzletipproper.Cleannozzlescreencarefully,removing

ree passageoffuelthroughnozzle.

allitsparts,theburner shouldbereassembledas

re,usingascrewdrivertosetit tightly,butwithout

OPERATOMIZATIONOFTHEFUEL,ITISESSEN-

COREBETIGHTLYSEATEDINTHENOZZLE

n,screwingitintonozzletip onlyfinger-tight.

por anyofitscomponentpartsshowexcessive

ssemblyshouldbe replacedwithanewonefrom

zzlebody,usingthe open-endwrenches,seating

oilleakage.

tothe electrodeclamp,spacingthemasfollows:


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USTMENTSFUELBURNER

deAdjustments

odesshouldbel/ginch.

inchforwardofnozzletip.

inchabovecenterofnozzletip.

hfromfrontofdiffuserplate.

electrodeclamp,therebysecuringthe electrodes.

ctrodesby meansofconnectors,andpassthe

atorsin frontmountingplate.

rassemblyintoblowerhousingopeningand

chcapscrews.

rminalsonignition transformer.

anarcacross theelectrodeswithintheburnerwhen

nporthole,itis anindicationthateitherthe ignition

thatno currentisbeingsuppliedto it,sincethearcing

ldbeconstantwhile theunitisrunning.

vethegeneratorterminalboxc overandbarethethree-

ecoverfrom themanualswitch.Ifa voltmeteris

gebetweenthesetwoconnections.Thevoltageshouldbe

available,a110-voltbulbshouldburnwithfull

dbetweenthesetwopoints.(SeeFig.84).

voltageatall, thegeneratorshouldbecheckedas

raphunder"Generator".Ifthevoltageiscorrect,the

transformer.

eryrare,anduponfailureit shouldberemoved

follows:

necthigh tensionignitionwiresfromterminalsat

koftransformeranddisconnectthe twoleads.

etubingat thesideofthe transformer,pullinggenerator

movethe45degree squeezeconnector.

securingthetransformershouldbe removed,and

d.

ecurelymountedinplace,replacethesqueeze

swires throughsideoftransformer,andtightenflexible

eadscannowbespliced tothegeneratorleads,andthe


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OLT

ToIgnitionTransformer

secondarywindingterminalsatfrontoftrans-

ouldrequirelittleattentionotherthanregular

owever,shoulditbecomenecessarytoreplaceanyofthe

afts,orwheel,theblower shouldbedisassembledas

5)

emovesheaveandkey.

blyandignitiontransformerasdescribedinprevious

urnerAssembly"and"IgnitionTransformer".

tsthathold theblowerassemblytothefrontouter

wer.

coversthebearing(B) intheair shutter(C)and

he topshutterleafandraiseleaf, exposingbearing(B).

rews(E)thathold thebearing(B)tothe shaft(F).


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ower

rews(H)thathold bearing(J)tothe shaft(F)

ower.

ts(K) thatholdbearings(B)and(J) tobrackets.

offtheshaft(F).

oundheadmachinescrews(L)holdingthe blower

erbody(N),theside plate(M)canbeslid offtheshaft

wheel(D)withdrawnfromtheblowerbody.Bearing

henberemoved.

screws(P)thatholdthe blowerwheel(D)tothe

slid offtheshaft.Becarefulnotto losetheWoodruff

eelinplace.

oundheadmachinescrews(S)the airshutteras-

d.

)

embly(C).Securewitheightmachinescrews(S).

e shaft(F),withkey(R)in place,thentighten

P):

)has beensetinplace,insertwheel (O)andshaft

Replacesideplate (M)andsecureitwitheight

haft,andsecurebothbearings(BandJ )withcap-

shers(K).Replacebearingsetscrews(E)and(H)and

A).

condition,theassembledblowercanbefastened

softhreewashersandnuts.

dbereplacedandaligned.

andignitiontransformer,andconnectignitionwires

rethatburner gasketisinplace.


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ECONTROL

eeWireSplice

spectedofbeingdefective,removeitscoverandsee

ontactwhenin the"ON"position.Iffounddefective,

secureanewswitchimmediately,thedefectiveswitch

poraryconnectionmadebysplicingtogetherthethree

electricianstape,or(in emergency,adhesivetape)(See

oneonlyasa temporarymeasureandanewswitch

aspossible,sincecurrentwillflowconstantlythrough

nandthesolenoidvalveandignitioncannotbecon-

ewiresareseparated.

thegeneratorvoltageislowor thereisnovoltageat

lyinoperative.Generatorfailureis usuallyduetopoor

atororadirtycommutator.

movetheterminalcoversatthe endoppositethesheave

brushes,twoforA.C.andtwo forD.C.TheA.C.


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HES

shes

ollectoror"sliprings".TheD.C.bear onthecommutator

elcopperbars.

ning,itshouldbecleanedasoutlinedunder "Operating

rection"intheOperationSection.AlsoseeFig.35 in

ES{SeeFig.87)

eworn,theyshouldbereplacedasfollows:

anthenbeslippedfromits holder.Removethe

shleadto thebrushriggingassemblyandthebrush will

newbrush,liftspringandslide brushintotheholder.

shriggingassembly.

ES(SeeFig.88)

s,removethemetalprotectingcapat thetopofthe

rojectionofthefrontbracket,andremovetheinsulator

willreleasethebrushand itsspring.Wheninstalling

he curvedsurfaceofeachbrushfitsthatof thecommutator.

metalprojectingcap.


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S

shes

9)

,andthewiringto thegeneratorhasbeendiscon-

beremovedfromtheunitby removingthefourcapscrews

teanddismantled,asfollows:

tuds(B) thatattachfrontandrearbrackets(C)

Bearing(F)withitsfelt andsteelwashersandspring

machinescrewsattachingfieldcoilleads(G)to brush

beremovedandthe armatureassembly(J)with-

felt andsteelwashers,shouldberemoved.

beremovedforreplacementafterremovingthetwo

athold theriggingtothe frontbracket(C).

)

brokenparts,the generatorcanbereassembledas

ndsecureit bymeansofbrushrigging clamps(L).

reshaft (J)and,withfeltand steelwashersin

racket(C).


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OR

bepassedthroughthe frameand,afterslidingon

ashers,andloading spring,therearbracket(D)canbe

ur studs(B)andnuts(A).

ereplacedas describedunderpreviousparagraphs.

beremountedonthe unit,thesheavemountedand

nectedasshowninthe partslistunder"Generatorand

OR

recontrolconsistsoftwomajorpans.Onepart,thebulb,

hin theheateratapoint justbelowthe3"rounddial in-

theoperatingendoftheunit. Theotherpart,isthe metal

olpanel,containingtheswitchmechanism.

b areconnectedbyathincoppertube.This tubing

entlytoseethatit hasnotbeencut,bentor flattened,since

theproperoperationof thecontrol.

CURYSWITCH(SeeFig.90)

mercuryswitchmaybebrokenbyaseverejolt ormis-

hasbeenbroken,anewmercuryswitchmustbeinstalled

Thenwiththepointof aknife,prytheswitchclip

itchneverattempttobreakitloosewiththe fingers.

toreplacethe ambroidcementthatwasusedon


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OR

G

latorControlBox

tureScale


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OR

TLIGHT

m

etweenstops,andnotethat themercuryshouldnotshift

operatingleverto returntoitsupper stopandtheswitch

nalstartingposition.

E(SeeFig.92)

willbefoundtwofillister typescrewheads.The

ainscaletemperaturecut-inpoint.Forexample:If the

oints to105degreesF,theswitchin thecontrolboxwill

pliedtotheburner.Shouldthe operatordesireahigheror

hehasonlytoinsert ascrewdriverintotheslotin thelarge

screweithertotheright orleft.Turnto therighttoin-

he lefttolowerit.

rewcontrolstherange (thedifferenceindegrees)

ndthecut-outpoint.This scalehasbeensetat thefactory

degreeswhensetat "B",andshouldnotbechangedunless

ncein watertemperatureisdesired,sinceatthissetting the

waysbe105degreesFand thecut-out110degreesF.With

degreesFthenumberof degreestoeachdivisionfrom"A"

done-half.


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ACER

ER

ACER

m

omthelightswitchbox locatedonthefrontendof

ember,fourof whichconnecttotheblackouttailandstop

nd stoplights.Thetworemainingcablesconnectthe

socket.Theoperatorshouldreferto Figs.93and94

sontheunit. Thefourelectricalcablesareidentified

e.

tetracer(A) istheconnectiontotheblackouttail

acktracer(B) istheconnectionleadingtothe

etracer(C)isthe connectionleadingtotheservice

er(D) istheconnectionleadingtotheservicestop

hts,taillights,orblackoutlightsfail tolightwhenthe

ulbshouldberemovedandinspectedfor corrosiononthe

ssaryanew bulbinstalled.Ifthenewbulb doesnotlight,


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Tank

onsbetweenterminalboardandtaillightunit.If,connec-

checkthetowingconnectionbetweenthetowingvehicleand

ions.Ifall connectionshavebeendeterminedtobecorrect,

fordisconnections.Sincetheunitlightsreceivetheir

towingvehicle,itis possiblethatthesourceofcurrent

ghinsufficientbatterysupply,or defectivewiringor

on eachsideoftheunit, buttheydonotcontainbulbs

Theonlyreplacementthatmaybenecessarywouldbeto

whichcanbe donebyremovingthetwoscrewsholding

K

serack,thefourcapscrewsthatsecurethe fourlegs

ovedandtherackliftedout.

orbothofthetwo fueltanksfromtheunit,the

dbefollowed:(SeeFig.95).


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oorSlats

peningthe petcockatthebottomofthetank,the

houldbe disconnectedfromthetank.

oserackassemblyfromthetopof theunit,aspre-

s(A)thatholdthetail lightpanel(B)to theframe

C)holdingthe endofthetankto theframecanthen

threecapscrews(E)atthesideof thetank.Afterre-

(F)atthetop ofthetank,itcanbe removed.

arilypluggedwithsmallwoodenplugs.Largeopen-

rpropercleaningof thetanktoremoveall fuelvapors.

by welding,anewtankshouldbeinstalled.

dangeroustoattemptweldinganytankthathas

oleumproductuntilithas beenthoroughlycleaned,prefer-

capscrews(F)attop oftank,threecapscrewsatside,

nnectsuctionandreturntubingatbottomoftank.

boltdownwithfourcapscrews.

stremovetheshowerand hoserack,thenremovethe

nprecedingparagraphs.Removethepowerplanthoodand

rcapscrewsthatholdtheslidingdoortrackto theheater.

screwsthatholdthetrackto thebaseplateandthe three

enginepaneltothetrack leg.

orslats,slathangers,or slatendlocks,refertoFig.96.


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Wheel

eremovedbyremovingthecotterpin andunscrewing

thelunetteindrawbarbracket,whichisboltedto theframe

unettecanthenbewithdrawn.

ndswivelpin(J) (SeeFig.97)removethecotterpin

dcapscrew(M),thatholdsthe quadrant(J),tothe

),removecotterpin(A)fromaxle wheelcarriagebolt

omthe axlebolt.Bolt(B)canthenbe withdrawn

bly(D).Therearetwo bushings(E),oneoneachend

esebushingsshould beinspectedafterremovalforex-

sary,newbushingsinstalled.Thecasterwheelfork(D)

byremovingthe setscrew(F)andlocknut(G),that

ktothe quadrantandswivelpin.Becarefulnotto lose


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ARINGS

dCups

leas closetothewheelas possible,sothatthewheel

untilthewheelcanberotated.Removesixnuts hold-

el canthenberemoved.

GS

uslydescribedunder"RemovalofWheels".Remove

heelhubwith aright-handthread.Removecotterpinset

tandremovenutand washerthatholdouterbearingin

ng,outer bearingcupandinnerbearingcupwill

erbearingwillremainonthe axle.Withfingers,remove

nslide theinnerbearingoffof theaxle.Greasesealcan

eforcleaning.Washbearingsinfueloil orkeroseneand

ub.

psshowevidenceofwear,theyshouldbereplaced

asesealonaxleshoulder,withleatherfaceout.After

nerbearingslideit ontheaxle,withtapertowardaxleend.

asedandin place,slideonthewheelhub.Aftergreasing

withtaperawayfromaxleend.Installwasherand castel-

s spinningtightennutuntiltensionstops thewheel.Then

cotterpinposition(approximaely%turn)andinstall cotter

gandthe nutwithgrease,thenscrewonhub cap.

ssembly,removethefourcapscrewssecuringthe

eingcarefulnotto losethetwo1/ginch shimsunderthe

romtheflexiblecoupling.Disconnectfuellineatcar-


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tarterSheave

theexhaustpipeextendingthroughthebase plate.

tpiping.

ERSHEAVE(SeeFig.99]

vethesetscrewinthehub ofthestarterropesheaveand

hecrankshaft.Thisisfacilitatedbythe useofacommon

(SeeFig.I00)

ewsandplainwasherswhichholdtheshroudand

er.Next,loosenandremovethetwo roundheadscrews

dtheshroudtoenginebase.Theshroud maythenbe

SeeFig.I0I)

onthecrankshaft.Aftertheshroudhasbeen re-

dbegraspedwiththeleft handandtheendof thecrank-

wswitha babbithammer.Theflywheelwillthenslide


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SE

oud

el


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derHead

uretor


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eto

s


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EAD(SeeFig.102)

wireandremovethesparkplug.Loosenandremove

shersthatholdthehead inplace.Theheadandgasketcan

ORANDAIRCLEANER(SeeFig.103)

textendsfromthe carburetortothegovernorcontrol

erpinwhichsecuresthe controlrodtothecontrollever.

threadedintothecarburetor.Next,loosenandremove

asherswhichholdthecarburetortothecylinder.Theassembly

eanercan thenberemoved.Ifitis desiredtoremovethe

etor,loosentheclampscrewonthe aircleanerbracketand

acketoffofthecarburetor.

eeFig.104)

chfastensthewireto themagneto,andpullthewire

oosenandremovetheUpper capscrew,nut,andlock-

nutand lockwasher.Themagnetoassemblycanthenbe

s willalsoremovetheair filterbrace,whichisfastened

untingscrew.

eFig.105)

dcopperwasherwhichholdstheinspectionplateto

henbe priedawayfromthecylinder,whichwillexpose

ndlocks.Astandardadjustable-typevalveliftershouldbe

esprings.Thiswill exposetheretainerlocks,whichcan

vestems byuseofa screwdriver.Thespringsshouldthen

springseats,and thevalvepulledupwardoutofits guide.

SE(SeeFig.106)

movedbylooseningand removingthetencapscrews

base offofthecrankcase.

oiloutofthe enginebasebeforeattemptingthis

GRODANDPISTONASSEMBLY(SeeFig.107)

ocapscrewsandlockwashersontheconnectingrod

Therodshouldthen betappedgentlywitha hammer

outofthebore.As soonasthepistonprotrudesoverthe

uldbegraspedfirmlyinthe handandwithdrawn.

T(SeeFig.108and109)

urcapscrewsandlockwashersthatholdthemain

haft.Theplatecanthen bepulledoffofthe crankcase


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eBase

ctingRodandPistonAssembly


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BearingRetainerPlate

kshaft


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aftSupportPin

haft


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canthenbepulledoutof thecase.Whenremovingthecrank-

beprotectedwiththe handsothattheywill notbe

CONTROLLEVERANDGOVERNORSPRING

rspring,bydetachingitfromthe governorleverand

ovethenutthatholds thegovernorlevertotheshaft.The

oftheshaft.Loosehandremovethetwocapscrewsthat

pportbrackettothe case.Thebracketandshaftcanthen

e.

SeeFig.110andIII)

thetake-offendof theenginebydrivinga sharp

edgingitoutofthe boss.Useadriftpunchto driveout

mblywithweightsassembledcanthenberemovedfrom

se.(SeeFig.111).

ORWEIGHTS

eadoutward,awayfromtheshaft,and thethrust

ffofthe shart.Thecotterpinswhichlockthefulcrumpin

moved,andthefulcrumpindrivenout.

LUNGERPUSHROD

dbe graspedfirmlywithapairof pliers.Thehead

nbedrivenoffafter whichthepushrodcanbe with-

valvetapperscanalso bepulledoutofthe guides.

MPfSeeFig.112)

e plungerinthecoreshouldfirst beremoved;a

dagainsttheplungerto preventitspoppingoutas the

eplungerandspring cannextbeliftedoutof thecylinder

sthenturnedover,the retainerandcheckballwillfall

e oilpumpbodycanb

TM 5-9722 SHOWER-UNIT, TRAILER MOUNTED, EC-3

Documents

Transcript of TM 5-9722 SHOWER-UNIT, TRAILER MOUNTED, EC-3