Toyota 1PZ Operating instructions

FOREWORD
Thisrepairmanualhasbeenpreparedtoprovideinformation
coveringgeneralservicerepairsforthe1 PZ,1 HZand1HD-T
enginesequippedontheTOYOTALANDCRUISERand
COASTER.
Applicablemodels:
PZJ70,73,75series
HZJ70,73,75,80series
HDJ80series
HZB30series
HDB30series
Pleasenotethatthepublicationsbelowhavealsobeenprepared
asrelevantservicemanualsforthecomponentsandsystemin
thisengine.
Allinformationinthismanualisbasedonthelatestproduct
informationatthetimeofpublication.However,specifications
andproceduresaresubjecttochangewithoutnotice.
TOYOTAMOTORCORPORATION
ManualName
LandCruiser(Wagon)NewCarFeatures
Pub.No.
NCF064E

CAUTION
Thismanualdoesnotincludeallthenecessaryitemsaboutrepairandservice,thismanualismade
forthepurposeoftheuseforthepersonswhohavespecialtechniquesandcertifications.Inthe
casesthatnon-specializedoruncertifiedtechniciansperformrepairorserviceonlyusingthismanu-
alorwithoutproperequipmentortool,thatmaycausesevereinjurytoyouorotherpeoplearound
andalsocausedamagetoyourcustomer'svehicle.
Inordertopreventdangerousoperation anddamagestoyourcustomer'svehicle,besuretofollow
theinstructionshownbelow.
Mustreadthismanualthoroughly.Itisespeciallyimportanttohavegoodunderstandingallthe
contentswritteninthePRECAUTIONof"IN"section.
Theservicemethodwritteninthismanualisveryeffectivetoperformrepairandservice.When
performingtheoperationsfollowingtheproceduresusingthismanual,besuretousetoolsspe-
cifiedandrecommended.Ifusingnon-specifiedorrecommendedtoolsandservicemethod,
besuretoconfirmsafetyofthetechniciansandanypossibilityofcausingpersonalinjuryor
damagetothecustomer'svehiclebeforestartingtheoperation.
Ifpartreplacementisnecessary,mustreplacethepartwiththesamepartnumberorequivalent
part.Donotreplaceitwithinferiorquality.
Itisimportanttonotethatthismanualcontainsvarious"Cautions"and"Notices"thatmustbe
carefullyobservedinordertoreducetheriskofpersonalinjuryduringserviceorrepair,orthe
possibilitythatimproperserviceorrepairmaydamagethevehicleorrenderitunsafe.Itisalso
importanttounderstandthatthese"Cautions"and"Notices"arenotexhaustive,becauseitis
importanttowarnofallthepossiblehazardousconsequencesthatmightresultfromfailureto
followtheseinstructions.

TOYOTA
1PZ,1HZ,1HD-TENGINE
REPAIRMANUAL
INTRODUCTION
ENGINEMECHANICAL
TURBOCHARGERSYSTEM
FUELSYSTEM
COOLINGSYSTEM
LUBRICATIONSYSTEM
STARTINGSYSTEM
CHARGINGSYSTEM
SERVICESPECIFICATIONS
STANDARDBOLTTORQUESPECIFICATIONS
SSTANDSSM
©2001TOYOTAMOTORCORPORATION
Allrightsreserved.Thisbookmaynotberepro-
ducedorcopied,inwholeorinpart,withoutthe
writtenpermissionofToyotaMotorCorporation.
FirstPrinting:Feb.8,199001-900208-00
34thPrinting:Aug.28,200134-010828-06-2

IN-1
INTRODUCTION
Page
HOWTOUSETHISMANUALIN-2
IDENTIFICATIONINFORMATIONIN-4
GENERALREPAIRINSTRUCTIONSIN-4
ABBREVIATIONSUSEDINTHISMANUALIN-7

IIM-2 INTRODUCTIONHowtoUseThisManual
HOWTOUSETHISMANUAL
Toassistyouinfindingyourwaythroughthismanual,the
SectionTitleandmajorheadingaregivenatthetopofevery
page.
AnINDEXisprovidedonthe1stpageofeachsectiontoguide
youtotheitemtoberepaired.
Atthebeginningofeachsection,PRECAUTIONSaregiventhat
pertaintoall repairoperationscontainedinthatsection.
Read these precautions before starting any repair task.
TROUBLESHOOTINGtablesareincludedforeachsystemto
helpyoudiagnosetheproblemandfindthecause.Therepairfor
eachpossiblecauseisreferencedintheremedycolumnto
quicklyleadyoutothesolution.
REPAIRPROCEDURES
Mostrepairoperationsbeginwithanoverviewillustration.It
identifiesthecomponentsandshowshowthepartsfittogether.
Example:

IN-3
INTRODUCTION- HowtoUseThisManual
Theproceduresarepresentedina step-by-stepformat:
•Theillustrationshowswhat todoandwhereto doit.
•Thetaskheadingtellswhat todo.
•Thedetailedtexttellshow toperformthetaskandgivesother
informationsuchasspecificationsandwarnings.
Example:
Thisformatprovidestheexperiencedtechnicianwitha
FASTTRACKtotheinformationneeded.Theuppercase
taskheadingcanbereadata glancewhennecessary,and
thetextbelowitprovidesdetailedinformation.Important
specificationsandwarningsalwaysstandoutinboldtype.
REFERENCES
Referenceshavebeenkepttoa minimum.However,whenthey
arerequired,youaregiventhepagetoreferto.
SPECIFICATIONS
Specificationsarepresentedinboldtypethroughoutthetext
whereneeded.Youneverhavetoleavetheproceduretolookup
yourspecifications.TheyarealsofoundinAppendixA forquick
reference.
CAUTIONS,NOTICES,HINTS:
•CAUTIONSarepresentedinboldtype,andindicatethereisa
possibilityofinjurytoyouorotherpeople.
•NOTICESarealsopresentedinboldtype,andindicatethe
possibilityofdamagetothecomponentsbeingrepaired.
•HINTSareseparatedfromthetextbutdonotappearinbold.
Theyprovideadditionalinformationtohelpyouefficiently
performtherepair.

IIM-4
INTRODUCTION- IdentificationInformation,GeneralRepairInstructions
IDENTIFICATIONINFORMATION
ENGINESERIALNUMBER
Theengineserialnumberisstampedontheleftsideofthe
cylinderblock.
GENERALREPAIRINSTRUCTIONS
1.Usefender,seatandfloorcoverstokeepthevehicleclean
andpreventdamage.
2.Duringdisassembly,keeppartsinordertofacilitatereas-
sembly.
3.Observethefollowing:
(a)Beforeperformingelectricalwork,disconnectthe
negative(—)cablefromthebatteryterminal.
(b)Ifitisnecessarytodisconnectthebatteryforinspec-
tionorrepair, alwaysdisconnectthecablefromthe
negative(—)terminalwhichisgroundedtothevehi-
clebody.
(c)Topreventdamagetothebatteryterminalpost,loosen
theterminalnutandraisethecablestraightupwith-
outtwistingorpryingit.
(d)Cleanthebatteryterminalpostsandcableterminals
witha shoprag.Donotscrapethemwitha fileor
otherabrasiveobject.
(e)Installthecableterminaltothebatterypostwiththe
nutloose,andtightenthenutafterinstallation.Donot
usea hammertotaptheterminalontothepost.
(f)Besurethecoverforthepositive(+) terminalis
properlyinplace.
4.Checkhoseandwiringconnectorstomakesurethatthey
aresecureandcorrect.
5.Non-reusableparts
(a)Alwaysreplacecotterpinsgaskets,O-rings,oilseals,
etc.withnewones.
(b)Non-reusablepartsareindicatedinthecomponent
illustrationsbythe"•"symbol.
6.PrecoatedParts
Precoatedpartsareboltsandnuts,etc.thatarecoatedwith
aseallockadhesiveatthefactory.
(a)Ifa precoatedpartisretightened,loosenedorcaused
tomoveinanyway,itmustberecoatedwiththe
specifiedadhesive.

IN-5
INTRODUCTION- GeneralRepairInstructions
(b)RecoatingofPrecoatedParts
(1)Cleanofftheoldadhesivefromthepart's
threads.
(2)Drywithcompressedair.
(3)Applythespecifiedseallockadhesive tothe
part'sthreads.
(c)Precoatedpartsareindicatedinthecomponentillus-
trationsbythe"*"symbol.
7.Whennecessary,usea sealerongasketstopreventleaks.
8.Carefullyobserveallspecificationsforbolttorques.Always
usea torquewrench.
9.Useofspecialservicetools(SST)andspecialservice
materials(SSM)mayberequired,dependingonthenature
oftherepair.BesuretouseSSTandSSMwherespecified
andfollowtheproperworkprocedure.A listofSSTand
SSMcanbefoundatthebackofthismanual.
10.Whenreplacingfuses,besurethenewfuseisthecorrect
amperage.DONOTexceedtheratingoruseoneofa lower
rating.
11.Caremustbetakenwhenjackingupandsupportingthe
vehicle.Besuretoliftandsupportthevehicleattheproper
locations.
(a)Ifthevehicleistobejackeduponlyatthefrontorrear
end,besuretoblockthewheelsinordertoensure
safety.
(b)Afterthevehicleisjackedup,besuretosupportiton
stands.Itisextremelydangeroustodoanyworkon
thevehicleraisedona jackalone,evenfora smalljob
thatcanbefinishedquickly.
12.Observethefollowingprecautionstoavoiddamagingthe
parts:
(a)Becarefulnottodropelectricalcomponents,suchas
sensorsorrelays.Iftheyaredroppedona hardfloor,
theyshouldbereplacedandnotreused.
(b)Topullapartelectricalconnectors,pullonthecon-
nectoritself,notthewires.
(c)Todisconnectvacuumhoses,pullontheend,notthe
middleofthehose.

IIM-6
INTRODUCTIONGeneralRepairInstructions
(d)Whensteamcleaninganengine,protecttheairfilter,
andinjectionpumpfromwater.
(e)Neveruseanimpactwrenchtoremoveorinstalltemp,
switchesortemp,sensors.
(f)Whencheckingcontinuityatthewireconnector,
insertthetesterprobecarefullytopreventterminals
frombending.
(g)Whenusinga vacuumgauge,neverforcethehose
ontoa connectorthatistoolarge.Usea step-down
adapterinstead.Oncethehosehasbeenstretched,it
mayleak.
13.Afterremovingandreinstallingtheinjectionpumpandfuel
hoses,cleanoffthefuelonenginecomponents.Inpartic-
ular,besuretochecktheradiatorhoseandby-passhose,
becausetheydeteriorateeasilyiftheycomeintocontact
withfuel.

IN-7
INTRODUCTION- AbbreviationsUsedinThisManual
ABBREVIATIONSUSEDINTHISMANUAL
A/CAirConditioner
ACVAirControlValve
ACSDAutomaticColdStartDevice
Approx.Approximately
A/TAutomaticTransmission
BACSBoostandAltitudeCompensationStopper
BDCBottomDeadCenter
Ex.Except
FLFusibleLink
FIPGFormedinPlaceGasket
HACHighAltitudeCompensator
LHLeft-Hand
LHDLeft-HandDrive
LSTLoadSensingTimer
MPMultipurpose
M/TManualTransmission
OHCOverHeadCam
O/SOversized
PCSPowerControlSystem
PCVPositiveCrankcaseVentilation
RHRight-Hand
RHDRight-HandDrive
SSMSpecialServiceMaterials
SSTSpecialServiceTools
STDStandard
SWSwitch
TDCTopDeadCenter
U/SUndersize
w/With
w/oWithout

EM-1
ENGINEMECHANICAL
DESCRIPTIONEM-2
TROUBLESHOOTINGEM-4
DieselEngineDiagnosisEM-4
DieselElectricalSystemDiagnosisEM-14
ENGINETUNE-UPEM-17
COMPRESSIONCHECKEM-30
TIMINGBELTEM-32
TIMINGGEARSEM-42
CYLINDERHEADEM-54
CYLINDERBLOCKEM-84
Page

EM-2ENGINEMECHANICAL- Description
DESCRIPTION
The1 PZengineisanin-line5-cylinder3.5literOHCengine.
The1 HZand1 HD-Tenginesareanin-line6-cylinder4.2literOHCengine.
1PZ
1HZ
1HD-T
EM8795EM8792
EM8965EM8793
EM8966EM8794

EM-3
ENGINEMECHANICALDescription
The1 PZengineisanin-line5-cylinderengine
withthecylindersnumbered1 -2-3-4-5from
thefront.Thisengine'sinjectionorderis
1-2-4-5-3.
The1 HZand1HD-Tenginesareanin-line
6-cylinderenginewiththecylindersnumbered
1-2-3-4-5-6fromthefront.Thisengine's
injectionorderis1 -4-2-6-3-5.
Thecrankshaftissupportedby6 (1PZ)or7 (1HZ
and1HD-T)bearingsontheinsideofthecrank-
case.Thesebearingsaremadeofaluminumalloy.
Thecrankshaftisintegratedwith10weights(1PZ)
or12weights(1HZand1HD-T)whicharecast
alongwithitforbalancing.Oilholesarebuiltinto
thecrankshaftforsupplyingoiltotheconnecting
rods,bearingsandothercomponents.
Thecrankshaftbearingcapisofladderframe
constructionandisincorporatedintothecrank
case.
Thecylinderheadismadeofcastironwitha
crossflowtypeintakeandexhaustlayout.The
combustionchambersareswirlchambertypefor
the1 PZand1 HZenginesanddirectinjectiontype
forthe1 HD-Tengine.Thecamshaftjournalpartof
thecylinderheadhascamshaftcapsmadeofalu-
minumalloyandismadeofcastirononthecylinder
headside.Thecamshaftjournalhasnobearings
(withtheexceptionoftheNo.1journal).
The1 HZand1 HD-Tengineshasdual-typeex-
haustmanifolds.
Exhaustandintakevalvesareequippedwith
irregularpitchspringswhicharecapableoffollow-
ingthevalvesevenathighenginespeeds.
Thecamshaftisdrivenbythetimingbelt.The
camshaftjournalissupportedat6 places(1PZ)or
7places(1HZand1HD-T).Lubricationofthe
camshaftjournalandcamisaccomplishedbyoil
beingsuppliedthroughtheoilerportintheNo.6
(1PZ)orNo.7(1HZand1 HD-T)ofthecamshaft
journal.
Adjustmentofthevalveclearanceisdoneby
meansofanoutershimtypesystem,inwhichvalve
adjustingshimsarelocatedabovethevalvelifters.
Thispermitsreplacementoftheshimswithout
removalofthecamshaft.
Pistonsaremadeofhighlytemperature-resistant
aluminumalloy.Asthe1 HD-Tengineisthedirect
injectiontype,a deepcombustionchamberhas
beenprovided.TheNo.1pistonringgroovehas
beenstrengthenedusinga fiberreinforcedmetal.
Pistonpinsarethefull-floatingtype,withthe
pinsfastenedtoneithertheconnectingrodsnorthe
pistonboss,butwitha snapringsfittedtoboth
endsofthepintopreventthepinfromslippingout.
TheNo.1compressionringismadeofsteeland
theNo.2compressionringismadeofcastiron.The
oilringismadeofsteel.Theouterdiameterofeach
pistonringisslightlylargerthanthediameterofthe
pistonandtheflexibilityoftheringsallowsthemto
hugthecylinderwallswhentheyaremountedon
thepiston.CompressionringsNo.1andNo.2work
topreventtheleakageofgasfromthecylinderand
theoilringworkstoscrapeoiloffthecylinderwalls
topreventitfromenteringthecombustioncham-
ber.
Thecylinderblockismadeofcastiron.Ithas5
cylinders(1PZ)or6 cylinders(1HZand1HD-T)
whichareapproximately1.7timesthelengthofthe
pistonstroke.Thetopofthecylindersisclosedoff
bythecylinderheadandthelowerendofthe
cylindersbecomesthecrankcase,inwhichthe
crankshaftisinstalled.Inaddition,thecylinder
blockcontainsa waterjacket,throughwhichcool-
antispumpedtocoolthecylinders.
Plasticregiontighteningboltsareusedforthe
cylinderheadbolts,crankshaftbearingcapbolts
andconnectingrodcapbolts.
Theoilpanisboltedontothebottomofthe
crankshaftbearingcapwithboltsandnuts.Theoil
panisanoilreservoirmadeofpressedsteelsheet.

EM-4ENGINEMECHANICAL- Troubleshooting(DieselEngineDiagnosis)
TROUBLESHOOTING
DieselEngineDiagnosis
GENERAL
1.Dieselengineproblemsareusuallycausedbytheengineorfuelsystem.Theinjectionpumpisveryrarely
thecauseoffuelsystemproblems.
2.Beforebeginningfuelsystemtests,firstcheckthattheenginecompression,valvetimingandothermajor
systemsarewithinspecifications.
PRELIMINARYCHECKS
1.Beforeperformingfuelsystemchecks,ensurethattheengineisingoodrunningcondition.Ifnecessary,
firstcheckthecompression,timingandmajorcomponentsorsystems.
2.Checktheairfilter,andcleanorreplaceitifnecessary.
3.Checkthatthereissufficientfuelinthetank.
4.Checkifthefueliscontaminatedwithgasolineorotherforeignelements.Onlygood-qualitydieselfuel
shouldbeused.
5.Bleedairfromthesystembypumpingthepriming.
6.Checkforwaterinthefuelfilterandfueltank,anddrainasnecessary.
7.Iftheenginewillnotcrankorifitcranksslowly,firsttroubleshoottheelectricalsystem.

EM-5
ENGINEMECHANICAL- Troubleshooting(DieselEngineDiagnosis)
PRECAUTION:
1.Thebasictroubleshootingproceduresforthedieselengine(valveclearance,compression,
bearings,valves,pistons,etc.)arethesamechecksyouwouldmakeforgasolineengine.
2.Repairoftheinjectionpumprequiresconsiderableskillanduseofa specialtestbench.
(PossibleCause)(CheckProcedureandCorrectionMethod)
1.LOOSEORCORRODED
BATTERYCABLESCheckcablesfrombatterytostarterandmakenec- essaryrepairs.
2.DISCHARGEDBATTERYCheckalternatoroutputanddrivebelt.
Ifnecessary,repair.(SeepageCH-5)
3.INOPERATIVESTARTERCheckforbatteryvoltageatstarterterminals30and
50.
IfOkay,seeSTARTINGSYSTEMforrepairproce-
dure,(seepageST-15)
ENGINECRANKSSLOWLY-WILLNOTSTART
HINT:Minimumcrankingspeed:
ColdHZJ80(A/T)andHDJ80(A/T)110rpm
Others100rpm
Hot150rpm
(PossibleCause)(CheckProcedureandCorrectionMethod)
1.LOOSEORCORRODED
BATTERYCABLES
2.DISCHARGEDBATTERY
3.IMPROPERENGINEOIL
Checkcablesfrombatterytostarterandmakenec-
essaryrepairs.
Checkalternatoroutputanddrivebelt.
Ifnecessary,repair.(SeepageCH-5)
Checkengineoil.
Ifimproperviscosity,drainandrefillwithoilofvis-
cosityrecommendedbymanufacturer.
(SeepageLU-6)

EM-6ENGINEMECHANICALTroubleshooting(DieselEngineDiagnosis)
ENGINECRANKSNORMALLYBUTWILLNOTSTART
(PossibleCause)(CheckProcedureandCorrectionMethod)
1.NOFUELTONOZZLE
2.NOFUELCUTSOLENOID
OPERATION
3.NOFUELINTOINJECTION
PUMP
4.FUELLEAKAGEFROM
INJECTIONPIPES
5.INOPERATIVEPREHEATING
OPERATION
Loosenanyoneinjectionpipeunionnutfromits
nozzleholder.
Crankengineforabout5 secondswhileconfirming
thatfuelisbeingdischargedfrompipe.
Iffueliscomingout,begindiagnosisfromitem4.
Ifnot,beginfromitem2.
WithstarterswitchturnedON,checkforfuelcut
solenoidoperationnoise(clickingsound)whilere-
peatedlyconnectinganddisconnectingfuelcut
solenoid.
Ifnonoise,checkifthereisbatteryvoltagetosole-
noidwhenstarterswitchisON.
Ifbatteryvoltageisconfirmed,fuelcutsolenoidis
faultyandshouldbereplaced.Ifnovoltage,referto
ELECTRICALDIAGNOSISandmakenecessaryre-
pairs.
Disconnectinlethosesfromfuelfilter,andfeed
cleanfuelfromseparatecontainerdirectlyintofuel
pump.
HINT:Whenfeedingfueltankdirectlyintopump,
keepcontaineratsamelevelasvehiclefueltank.
Ifenginestarts,eitherfuelfilterorlinebetweenfuel
tankandfilteriscloggedandshouldberepaired
accordingly.
Ifenginestilldoesnotstart(nofuelintake),check
fuellinebetweenfilterandpump.
Ifnormal,pumpisfaultyandshouldbereplaced.
Checkforlooseunionsorcracks.
Ifleaking,tightentostandardtorqueor,ifnecessary,
replacepipe(s).
WithstarterswitchturnedONandglowplugindi-
catorlightilluminated,checkthatthereisvoltage
appliedtoglowplug.
Ifnot,refertoELECTRICALDIAGNOSISandrepair
asnecessary.

EM-7
ENGINEMECHANICAL- Troubleshooting(DieselEngineDiagnosis)
6.FAULTYGLOWPLUG
OPERATION
7.IMPROPERINJECTIONTIMING
8.(w/ACSD)
IMPROPERCOLDSTART
ADVANCEANDFASTIDLE
9.FAULTYINJECTIONNOZZLES
Checkglowplugforcontinuity.
Ifnocontinuity,a brokenwireisindicatedandglow
plugshouldbereplaced.
Checkinjectiontiming.(SeepageEM-27)
Plungerstroke:1PZ0.82—0.88mm
(0.0323-0.0346in.)
1HZ1.03-1.09mm
(0.0406-0.0429in.)
1HD-T1.29-1.35mm
(0.0508-0.0531in.)
Ifnotasabove,injectionpumpisimproperly
adjusted.
Checktimerpistonstrokeandfastidleleveropening
anglewithaninjectionpumptesterwhencoldstart
advanceisoperated.
Checkinjectionpressurewitha nozzletester.
(SeepageFU-10or20)
Openingpressure:
1PZand1HZ135-155kg/cm2
(1,920-2,205psi)
(13,239-15,200kPa)
1HD-T
No.1openingpressure
180-190kg/cm2
(2,560-2,702psi)
(17,652- 18,633kPa)
No.2openingpressure
(Inspectionpressure)
132-138kg/cm2
(1,877-1,963psi)
(12,945-13,533kPa)
Ifnotasabove,nozzleadjustmentisimproperand
pressureshouldbereadjusted.
Ifpressurecannotbeadjustedtospecification,re-
placeinjectionnozzle.

EM-8ENGINEMECHANICALTroubleshooting(DieselEngineDiagnosis)
ROUGHIDLEWITHWARMENGINE
(PossibleCause)(CheckProcedureandCorrectionMethod)
1.IMPROPERADJUSTMENTOF
ACCELERATORCABLEWithacceleratorpedalreleased,checkthatadjusting
leverisincontactwithidlespeedadjustingscrew.
Alsocheckifacceleratorcableorlinkageiscatching
onsomething.
Ifnecessary,adjustsothatleverisincontactwith
screw,ormakeotherrequiredrepairs.
2.IDLESPEEDTOOLOWCheckidlespeed.(SeepageEM-27)
Idlespeed:
1PZ600-700rpm
1HZM/T600-700rpm
1HZA/T660-760rpm
1HD-TM/T600-700rpm
1HD-TA/T750-850rpm
HINT:Iflessthanstandard,idlingwouldnormally
berough.
Ifnotasabove,adjustwithidlespeedadjusting
screw.
Checkforleaksatinjectionpumpconnections,
pumpdistributiveheadbolts,injectionnozzlesand
deliveryvalveholders.
Tightenanylooseconnectionstospecifiedtorqueor
replacepartsasnecessary.
Refertostep7 ofENGINECRANKSNORMALLY
BUTWILLNOTSTART,above.
4.IMPROPERINJECTIONTIMING
3.FUELLEAKAGE

EM-9
ENGINEMECHANICAL- Troubleshooting(DieselEngineDiagnosis)
5.IMPROPEROPERATIONOF
INJECTIONNOZZLESOR
DELIVERYVALVES
Withengineidling,looseninjectionpipetoeach
cylinderinorder,andcheckifidlespeedchanges.
Ifnochange,a faultycylinderisindicated.
Checkaccordingtofollowingprocedure.
•Faultyinjectionnozzle
Checkinjectionnozzlewitha nozzletester.
(SeepageFU-10or20)
Openingpressure:
IPZandiHZ135-155kg/cm2
(1,920-2,205psi)
(13,239-15,200kPa)
1HD-T
No.1openingpressure
180-190kg/cm2
(2,560-2,702psi)
(17,652- 18,633kPa)
No.2openingpressure
(Inspectionpressure)
132-138kg/cm2
(1,877-1,963psi)
(12,945-13,533kPa)
Ifnotasabove,nozzleadjustmentisimproperand
pressureshouldbereadjusted.
Ifpressurecannotbeadjustedtospecification,re-
placeinjectionnozzle.
•Faultydeliveryvalve
Ifinjectionpressureisasspecified,deliveryvaleis
defectiveandshouldbereplaced.