Hyster G004 (S120FTS) Forklift Service Repair Manual

Thissectioncontainsadescriptionandrepairproceduresforbothmanualandelectronicmaincontrol valvesusedinthehydraulicsystemforthisseriesof lifttrucks.

Therearetwomaincontrolvalvesavailableforthis seriesoflifttrucks.Oneiscontrolledmanually(manualmaincontrolvalve)andtheotheriscontrolled electronically(electro-hydraulicmaincontrolvalve). Themaincontrolvalvesaremountedtothecowlusingthreemountingbolts.SeeFigure1.

NOTE: MAJORCOMPONENTSNOTSHOWNFOR CLARITY.VIEWISFROMTHEFRONT.

NOTE: ELECTRO-HYDRAULICCONTROLVALVE FORLIFTTRUCKMODELSS30FT,S35FT,S40FTS (E010),H1.6FT,H1.8FT,H2.0FTS(H30FT,H35FT, H40FTS)(F001),S2.0-3.5FT(S40-70FT,S55FTS) (F187),H2.0-3.5FT(H40-70FT)(L177),S4.0,4.5, 5.5FT,S5.5FTS(S80,100,120FT;S80,100FTBCS; S120FTS;S120FTPRS)(G004),ANDH4.0FT5/FT6; H4.5FTS5,H4.5FT6,H5.0-5.5FT(H80,90,100,110, 120FT)(N005,P005)SHOWN.

Figure1.MainControlValveMounting

Electro-HydraulicMainControlValve

DESCRIPTION

TheE-Valveisanelectronically-controlled,closedcenter,load-sensingstackvalve.Itusesanunloadervalve(singlefunctionsonly)andhasparallel hydrauliccircuitry.Operatingmultiplefunctions simultaneouslywillresultinanonproportionate increaseinpumpflowtofunctionswhichreceive thelowestamountofpressurizedfluid.Afixed displacementpumpisusedinconjunctionwiththe inletcompensatortoachievetherequiredload-sense logic.Liftfunctionisonmainreliefpressuresetting. Tiltandauxiliaryfunctionsareonsecondaryrelief pressuresetting.Liftpressureisunaffectedby secondaryreliefoperation.

Theelectronicmaincontrolvalveincorporatesan emergency(manual)loweringvalve.SeeFigure2 andFigure3.Thisvalveallowstheoperatoror

servicetechniciantolowerthelifttruck’smastassemblyiftheelectricalsignaltotheelectronicmain controlvalveisdisrupted.

Theelectronicmaincontrolvalveassemblyisdivided intothefollowingsections.SeeFigure2andFigure3.

• SteeringControlUnit(SCU)

• Lift/Lower

• Tilt

• Auxiliary

• Outlet

• Mid-Inlet*(PrimaryPumpInlet)

*Mid-inlet(primarypumpinlet)sectionisusedonly onthemaincontrolvalveoflifttruckmodelsS6.0FT, S7.0FT(S135FT,S155FT)(D024,E024)andH6.0FT, H7.0FT(H135FT,H155FT)(H006,J006).SeeFigure3.

Figure2.ElectronicControlValve,LiftTruckModelsS30FT,S35FT,S40FTS(E010),H1.6FT, H1.8FT,H2.0FTS(H30FT,H35FT,H40FTS)(F001),S2.0-3.5FT(S40-70FT,S55FTS)(F187),H2.0-3.5FT (H40-70FT)(L177),S4.0,4.5,5.5FT,S5.5FTS(S80,100,120FT;S80,100FTBCS;S120FTS;S120FTPRS) (G004),andH4.0FT5/FT6;H4.5FTS5,H4.5FT6,H5.0-5.5FT(H80,90,100,110,120FT)(N005,P005)

1.STEERINGCONTROLUNIT(SCU)

2.SCUMOUNTINGCAPSCREW

3.MID-INLETSECTION(PRIMARYPUMPINLET)

4.ELECTRO-HYDRAULICPOPPETVALVE(EHPV) (LIFT)

5.ELECTRO-HYDRAULICPOPPETVALVE(EHPV) (LOWER)

6.PROPORTIONALPRESSUREREDUCING VALVE(PPRV)

7.AUXILIARYISECTION 8.AUXILIARYIISECTION

11.TILTSECTION

12.PRIMARYRELIEFVALVE(ADJUSTABLE)

13.EMERGENCYLOWERVALVE

14.EFPORT

15.LIFT/LOWERSECTION

Figure3.ElectronicControlValve,LiftTruckModelsS6.0FT,S7.0FT(S135FT,S155FT)(D024, E024)andH6.0FT,H7.0FT(H135FT,H155FT)(H006,J006)

REMOVE WARNING

Lowercarriagecompletelybeforeworkingon controlvalveorhydraulicsystem.Donotwork underaraisedcarriage.Putmastinaverticalposition,withnoforwardorbacktilt,and lowercarriagecompletelybeforedisconnectinganypartsofhydraulicsystem.Themast canlowersuddenlyandcauseinjuryifthecarriageisnotlowered.

NOTE: Mostoftheindividualvalvecomponentscan beremovedandreplacedwhilethecontrolvalveisinstalledinthetruck.Removalofthecontrolvalvefor repairsisnormallyonlyrequiredtoreplaceavalve section,ortoreplacetheO-ringsbetweenthesections.

1. Powerwashtheinterioroftheoperatorcompartmenttoremoveanydirtordebris.

2. Movetrucktodisassemblyareaandshutoffengine.

WARNING

Cleaningsolventscanbeflammableandtoxic andcauseskinirritation.Whencleaning solventsareused,alwaysfollowthesolvent manufacturer’srecommendedsafetyprocedures.Wearprotectivegogglesorafaceshield topreventeyeinjuries.

WARNING

Becarefulwhencleaningwithsteam.Steam cancauseseriousburns.Wearprotectiveclothing,gloves,andeyeprotection.Neverexpose yourskintosteam.

NOTE: Takeallnecessarystepstopreventdebris, dust,orothercontaminantsfromenteringthevalve cavities,hydrauliclines,orreplacementparts.

3. Removethefloorplate,kickpanel,sealplate, anddashboard.Seeoneofthefollowingservice manualsectionsforyourlifttruck’sprocedures:

•Frame 100SRM1120forS30FT,S35FT, S40FTS(E010);H1.6FT,H1.8FT,2.0FTS (H30FT,H35FT,H40FTS)(F001);S2.0-3.5FT (S40-70FT,S55FTS)(F187);H2.0-3.5FT (H40-70FT)(L177)

•Frame 100SRM1243forS4.0,4.5,5.5FT, S5.5FTS,(S80,100,120FT;S80,100FTBCS; S120FTS;S120FTPRS)(G004);H4.0FT5/FT6; H4.5FTS5,H4.5FT6;H5.0-5.5FT(H80,90, 100,110,120FT)(N005,P005)

•Frame 100SRM1316forS6.0FT,S7.0FT (S135FT,S155FT)(D024,E024)

•Frame 100SRM1321H6.0FT,H7.0FT (H135FT,H155FT)(H006,J006)

Beforedisconnectinganyhydraulichosesorremovinganypartsfromthecontrolvalve,clean theoutsideofthevalveeitherbysteamcleaning orwithcleaningsolvent.

4. ToremovetheacceleratorpedalorMONOTROL® pedalassembly,disconnectthecowlwiringharnessfromthepedalassemblywiringharnessand removethreemountingcapscrews.SeeFigure4.

NOTE: ACCELERATORPEDALNOTSHOWN,HOWEVER, REMOVALISTHESAME.

1.MOUNTINGCAPSCREW

2.MONOTROLPEDALASSEMBLY

3.PEDAL ASSEMBLYWIRINGHARNESS Figure4.MONOTROLPedalRemoval

NOTE: Toaidininstallation,tagallconnectorsprior todisconnectingfromthesolenoids.

5. Disconnectthecowlwiringharnessconnectors fromtheliftandlowerElectro-HydraulicPoppet Valve(EHPV)solenoids.Disconnectthecowl wiringharnessfromthetopauxiliaryfunction ProportionalPressureReducingValve(PPRV) solenoids.SeeFigure5.

CAUTION

Topreventanyforeignmatterfromgetting intoeitherthehydraulichosesorthehydrauliccontrolvalvesections,allopenings musthaveplugsorcoversinstalledimmediatelyafterhosesaredisconnectedfromthe

controlvalve.Thisalsoappliesifanyother itemsareremovedfromthecontrolvalve.

NOTE: Toaidincorrectlyconnectinghydraulichoses duringinstallation,tageachhosepriortodisconnectingfromthecontrolvalve.

6. Disconnecthydraulichosesfromthecontrol valve(seeFigure5andFigure6).Installplugs orcapsonallopenhoseendsandcontrolvalve portstopreventcontamination.

7. RemovethetwoSCUmountingcapscrewsand movetheSCUapproximately1.3cm(0.5in.)to theleft,andlowertheSCUuntilthesteering shaftisdisengaged.RemovetheSCUfromthe lifttruck.SeeFigure2andFigure3.

Figure5.HydraulicHoseRemovalandHarnessDisconnection,LiftTruckModelsS6.0FT,S7.0FT (S135FT,S155FT)(D024,E024)andH6.0FT,H7.0FT(H135FT,H155FT)(H006,J006)

LegendforFigure5

NOTE: HARNESSCONNECTORSFORS6.0FT,S7.0FT(S135FT,S155FT)(D024,E024)ANDH6.0FT,H7.0FT (H135FT,H155FT)(H006,J006)LIFTTRUCKSSHOWN.HARNESSCONNECTORSFORALLOTHERLIFT TRUCKMODELSCOVEREDINTHISSRMARESIMILAR.

1.LIFTELECTRO-HYDRAULICPOPPETVALVE (EHPV)HARNESSCONNECTOR

2.LOWERELECTRO-HYDRAULICPOPPETVALVE (EHPV)HARNESSCONNECTOR

3.AUXILIARYFUNCTIONPROPORTIONAL PRESSUREREDUCINGVALVE(PPRV) HARNESSCONNECTOR

4.STEERINGSYSTEMHOSES

5.SECONDARYHYDRAULICPUMPHOSE

6.MIDINLETHOSE

10.AUXILIARYIIHOSE

11.RETURNHOSE

12.STEERINGCOLUM

13.STEERINGCONTROLUNIT(SCU)

14.SCUMOUNTINGCAPSCREWS

Figure6.HydraulicHoseRemoval,LiftTruck ModelsS30FT,S35FT,S40FTS(E010),H1.6FT, H1.8FT,H2.0FTS(H30FT,H35FT,H40FTS)(F001),S2.0-3.5FT(S40-70FT,S55FTS)(F187),H2.0-3.5FT

(H40-70FT)(L177),S4.0,4.5,5.5FT,S5.5FTS(S80,100,120FT;S80,100FTBCS;S120FTS;S120FTPRS) (G004),andH4.0FT5/FT6;H4.5FTS5,H4.5FT6,H5.0-5.5FT(H80,90,100,110,120FT)(N005,P005)

8. RemoveanddiscardtwoO-ringsfromthe maincontrolvalve.ForlifttruckmodelsS30FT,S35FT,S40FTS(E010),H1.6FT, H1.8FT,H2.0FTS(H30FT,H35FT,H40FTS) (F001),S2.0-3.5FT(S40-70FT,S55FTS)(F187), H2.0-3.5FT(H40-70FT)(L177),S4.0,4.5, 5.5FT,S5.5FTS(S80,100,120FT;S80,100FTBCS;S120FTS;S120FTPRS)(G004),and H4.0FT5/FT6;H4.5FTS5,H4.5FT6,H5.0-5.5FT (H80,90,100,110,120FT)(N005,P005)the twoO-ringsarelocatedonthelift/lowercontrol valvesection,onthesidewheretheSCUand lift/lowercontrolvalvesectionareconnected (item3betweenitems9and10inFigure14).

ForlifttruckmodelsS6.0FT,S7.0FT(S135FT, S155FT)(D024,E024)andH6.0FT,H7.0FT (H135FT,H155FT)(H006,J006),thetwoO-rings arelocatedonthemid-inletcontrolvalvesection, onthesidewheretheSCUandmid-inletcontrol valvesectionareconnected(item3betweenitem 5inFigure7).

liftingthemaincontrolvalvetoavoidthepossibilityofinjurytopersonnel.

9. Supportthemaincontrolvalve.Removethree mountingcapscrews,washers,inserts,andthe maincontrolvalvefromthelifttruck.SeeFigure8.

Themaincontrolvalveweighsapproximately 30.5kg(67lb).Usealiftingdevicecapableof

Figure8.MainControlValveRemoval

NOTE: Toaidininstallation,tagallconnectorsprior todisconnectingfromthesolenoids.

10. Raisethemaincontrolvalveapproximately 25.4cm(10in.)togainaccesstothelowertilt andauxiliaryfunctionProportionalPressure ReducingValve(PPRV)solenoids.Disconnect thecowlharnessfromthelowertiltandauxiliaryfunction(PPRV)solenoids.SeeFigure2 andFigure3.

11. Removethemaincontrolvalvefromthelift truck.

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ELECTRO-HYDRAULICCONTROLVALVE SECTIONS

General CAUTION

Whileworkingontheelectro-hydrauliccontrol valvesections,placeacoverovertheremainingsectionsofthecontrolvalvetoprevent thepossibilityofcontaminantsgettinginto thecontrolvalveopeningswhichcouldcause damagetothecontrolvalve.

CAUTION

IfO-ringsaretobereplacedbetweentwosectionsthathaveahydraulicoilleak,replaceall O-ringsbetweenallsections.Thiseliminates thepossibilityofasubsequentoilleakorpossibledamagetoanotherO-ring.

Disassembletheelectro-hydrauliccontrolvalveonly asnecessaryforrepairs.Mostrepairstothecontrol valvewillbeforthereplacementofO-ringstostop leaksbetweensections.

OutletControlValveSection

Remove

1. Removefournutsfromthecontrolvalvetierods. SeeFigure9.

2. Removetheoutletcontrolvalvesectionfromthe fourtierodsanddiscard10O-rings(item13in Figure10)fromtheauxiliarycontrolvalvesection.

Disassemble

1. Removetheplugfromtheoutletcontrolvalve sectionanddiscardtheO-ring.

2. Ifthesecondaryreliefvalvehasbeenleaking, removeitfromtheoutletcontrolvalvesection. SeeStep3throughStep7todisassemblethesecondaryreliefvalve.SeeFigure9.

3. Removetheplugfromtheadjustingnut.Remove anddiscardtheO-ringfromtheplug.Remove anddiscardthebackupringsandO-ringfromthe adjustingnut.SeeFigure9.

4. Whileholdingtheadjustmentnut,loosenthejam nut.

NOTE: WhileperformingStep5,countandnotethe numberofturnsusedtoremovetheadjustingnut.

5. Removetheadjustingnutandjamnutassembly fromthesecondaryreliefvalvepluganddiscard theO-ringontheadjustingnut.

6. Removethespring,washer,andpoppetfromthe secondaryreliefvalveplug.

7. Removeanddiscardthebackupringfromthe secondaryreliefvalveplug.

Clean

WARNING

Cleaningsolventscanbeflammableandtoxic andcancause skinirritation.Whenusing cleaningsolvents,alwaysfollowthesolvent manufacturer’srecommendedsafetyprocedures.

WARNING

Compressedaircanmoveparticlessothey causeinjurytotheuserortootherpersonnel. Makesurethepathofthecompressedairis awayfromallpersonnel.Wearprotectivegogglesorafaceshieldtopreventinjurytothe eyes.

1. Ifallcomponentsoftheoutletcontrolvalvesectionhavebeenremoved,cleantheoutletcontrol valvesectionusingcleaningsolventanddryusingcompressedair.

2. Ifnotallcomponentshavebeenremoved,clean theoutletcontrolvalvesectionusingalint-free cloth.

Inspect

Inspecttheoutletcontrolvalvesectionmatingsurfacesandtheboreofthesecondaryreliefvalve,ifremoved,fordamage.Ifeitherthematingsurfaceor thesecondaryreliefvalveborearedamaged,replace theoutletcontrolvalvesection.

Ifdisassembled,inspectthecomponentsofthesecondaryreliefvalve.Ifanycomponentsotherthan O-rings,backuprings,andthespringaredamaged, replacethesecondaryreliefvalve.

NOTE: Iftheoutletcontrolvalvesectionisnottobe reassembledimmediately,coatsurfaceswithclean hydraulicoiltopreventthepossibilityofrust.Cover theoutletcontrolvalvesectionwithaclean,dry,lintfreeclothtopreventthepossibilityofcontaminants enteringtheoutletcontrolvalvesection.

Assemble

NOTE: CoatallbackupringsandO-ringswithalight coatofcleanhydraulicoiltomakeinstallationeasier.

NOTE: PerformStep1throughStep7onlyifthesecondaryreliefvalvewasrepaired.

1. Installanewbackupringonthesecondaryrelief valveplug.SeeFigure9.

2. Installthepoppet,washer,andspringintothe secondaryreliefvalveplug.

3. InstallanewO-ringontheadjustingnut,andinstalltheadjustingnutandjamnutassemblyinto thesecondaryreliefvalveplugusingthesame numberofturnsnotedduringdisassembly.

4. Whileholdingtheadjustingnutinplace,tighten thejamnutto24±3N•m(18±2lbfft).

5. Installabackupring,O-ring,andbackupring intotheadjustingnut.

6. InstallanewO-ringontotheplug.Installthe plugintotheadjustingnut.

7. Ifremoved,installsecondaryreliefvalveinto outletcontrolvalvesection.Tightenreliefvalve plugto45N•m(33lbfft).Seethesection PressureReliefValveCheckandAdjustmentto adjustthesecondaryreliefvalveandcheckthe pressure.

8. InstallnewO-ringonplugandinstallintheoutletvalvesection.

Install

NOTE: CoatallO-ringswithlightcoatofcleanhydraulicoiltomakeinstallationeasier.

1. Install10newO-rings(13,Figure10)intothe auxiliaryvalvesection.Installtheoutletcontrol valvesectiononthefourtierods.

2. Installthefournutsonthetierodsandtighten to19±2N•m(168±18lbfin).

AuxiliaryControlValveSections

NOTE: Thereisthepossibilityofhavingtwoorthree auxiliarycontrolvalvesectionsdependinguponhow manyfunctionsareonthelifttruck.Ifthemaincontrolvalveisafour-functioncontrolvalve,therewill betwoauxiliarycontrolvalvesections.Ifthemain controlvalveisafive-functioncontrolvalve,there willbethreeauxiliarycontrolvalvesections.

Thesesectionsarerepairedthesamewaywithone exception.Theauxiliarycontrolvalvesectionnextto thetiltcontrolvalvewillalwayshavetheanti-stall valveinstalledasapartofthatcontrolvalvesection.

Remove

1. Removetheoutletcontrolvalvesection.SeeOutletControlValveSection,Remove.

NOTE: Step2andStep3areforathree-functioncontrolvalve.Ifafourorfive-functioncontrolvalveis beingdisassembled,gotoStep4.

2. Removetheanti-stallvalvefromtheauxiliary controlvalvesection.SeeFigure10.Iftheantistallvalveistoberepaired,gotoStep5ofthe Disassembleprocedurefortheauxiliarycontrol valvesection.

3. Removetheauxiliarycontrolvalvesectionfrom thefourtierods.Removeanddiscard10O-rings fromthetiltcontrolvalvesection.SeeFigure12.

4. RemovetheauxiliaryIIIcontrolvalvesection fromthefourtierods.Removeanddiscard10 O-rings(13,Figure10,illustrationB)fromthe auxiliaryIIcontrolvalvesection.Removethe auxiliaryIIcontrolvalvesectionfromthefour tierods.Removeanddiscard10O-rings(13,Figure10,illustrationB)fromtheauxiliaryIcontrol valvesection.

5. Removetheanti-stallvalvefromtheauxiliaryI controlvalvesection.Iftheanti-stallvalveis toberepaired,gotoStep5oftheDisassemble procedurefortheauxiliarycontrolvalvesection.

6. RemovetheauxiliaryIcontrolvalvesectionfrom thefourtierods.Removeanddiscard10O-rings fromthetiltcontrolvalvesection.

Figure10.AuxiliaryI,II,andIIIControlValveSections

LegendforFigure10

NOTE: Disassembletheauxiliarycontrolvalveonly asneededtoaccomplishtherepairsrequired.The disassembleproceduresfortheauxiliaryI,II,andIII sectionsarethesame.TheauxiliaryIsectionisused intheproceduresdescribedbelowbecauseitcontains theanti-stallvalve.

1. Removefourcapscrewsandtwoproportional pressurereducingvalves(PPRV)fromtheauxiliarycontrolvalvesection.Removeanddiscard thebackupring,twoO-rings,backupring,and O-ringfromeachPPRV.SeeFigure10.

2. Removetheplug,spring,washer,andspoolfrom theauxiliarycontrolvalvesection.Discardthe O-ringontheplug.

3. Removetheplug,spring,andwasherfromthe auxiliarycontrolvalvesection.Discardthe O-ringontheplug.

4. Removetwoplugs,twosprings,andtwopoppets fromtheauxiliarycontrolvalve.Discardone O-ringfromeachplug.

5. Removespringfromthelargeendoftheantistallvalvesleeve.SeeFigure11.

6. Removethespoolfromthesmallendoftheantistallvalvesleeve.

NOTE: NotetheorientationoftheO-ringsand backupringsforcorrectinstallation.

7. Removeanddiscardtwobackupringsandtwo O-ringsfromtheanti-stallvalvesleeve.Toreassembletheanti-stallsleevevalve,seeStep5 oftheassemblyprocedure.

Clean

WARNING

Cleaningsolventscanbeflammableandtoxic andcancauseskinirritation.Whenusing cleaningsolvents,alwaysfollowthesolvent manufacturer ’srecommendedsafetyprocedures.

WARNING

Compressedaircanmoveparticlessothey causeinjurytotheuserortootherpersonnel. Makesurethepathofthecompressedairis awayfromallpersonnel.Wearprotectivegogglesorafaceshieldtopreventinjurytothe eyes.

1. Ifallcomponentsoftheauxiliarycontrolvalve sectionhavebeenremoved,cleantheauxiliary controlvalvesectionandcomponents,exceptthe twoPPRVs,usingcleaningsolventanddryusing compressedair.

2. Ifnotallcomponentshavebeenremoved,clean theauxiliarycontrolvalvesectionusingalintfreecloth.

3. Iftheanti-stallvalvewasdisassembled,clean thespool,anti-stallvalvesleeve,andspringwith cleaningsolvent.Drywithalint-freecloth.

Inspect

Inspecttheauxiliarycontrolvalvesectionmating surfacesandanyopenboresfordamage.Ifdamage isfound,replacetheauxiliarycontrolvalvesection. Ifthespoolhasbeenremoved,inspectthespooland theborefordamage.Ifdamagetoeitherthespoolor theboreisfound,replacetheauxiliarycontrolvalve section.

Iftheanti-stallvalvewasdisassembled,inspectthe spool,anti-stallvalvesleeve,andspringfordamage. Ifthespringisdamaged,replacethespring.Ifthe spooloranti-stallvalvesleeveisdamaged,replace theanti-stallvalveassembly.

NOTE: Iftheauxiliarycontrolvalvesectionisnotto bereassembledimmediately,coatsurfaceswithclean hydraulicoiltopreventthepossibilityofrust.Cover theauxiliarycontrolvalvesectionwithaclean,dry, lint-freeclothtopreventthepossibilityofcontaminantsenteringtheauxiliarycontrolvalvesection.

Assemble

NOTE: CoatallbackupringsandO-ringswithalight coatofcleanhydraulicoiltomakeinstallationeasier.

NOTE: TheassemblyproceduresfortheauxiliaryI, II,andIIIsectionsarethesame.TheauxiliaryI sectionisusedintheproceduresdescribedbelowbecauseitcontainstheanti-stallvalve.

1. Installthespool,washer,spring,andplug,with newO-ring,intotheboreoftheauxiliarycontrol valvesection.Tightentheplugto14±1N•m (120±12lbfin).SeeFigure10.

2. Installthewasher,spring,andplug,withnew O-ring,intotheauxiliarycontrolvalvesection. Tightentheplugto14±1N•m(120±12lbfin).

3. Installtwopoppets,twosprings,andtwoplugs, withnewO-ringsinstalled,intotheauxiliary controlvalvesection.Tightentheplugsto81 ±8N•m(60±6lbfft).

4. InstallthenewO-ring,backupring,twoO-rings, andbackupringoneachPPRV.Installtwo PPRVsandfourcapscrewsintotheauxiliary controlvalvesection.Tightenthecapscrewsto3 ±0.3N•m(24±2lbfin).

5. InstalltwobackupringsandtwoO-ringsonthe anti-stallvalvesleeveasnotedduringdisassembly.SeeFigure11.

6. Installthespoolinthesmallendoftheanti-stall valvesleeve.

7. Installthespringinthelargeendoftheanti-stall valvesleeve.

Install NOTE: Step1throughStep3areforathree-function controlvalve.Step4throughStep7areforafour andfive-functioncontrolvalves.

1. Install10newO-ringsintothetiltcontrolvalve section.InstalltheauxiliaryIcontrolvalvesectiononthefourtierods.SeeFigure12.

2. Installtheanti-stallvalveintotheauxiliaryI controlvalvesection.SeeFigure10.

3. Installtheoutletcontrolvalvesection.SeeOutletControlValveSection,Install.