Hyster A495 (W20ZA) Forklift Service Repair Manual

SERVICE

General

WARNING

Beforeworkingonornearthemast,seeSafety ProceduresWhenWorkingNearMastinthis section.

Thissectioncontainstheremoval,installation,and adjustmentproceduresforthetwo-stage,zerofreeliftmast.Thedescriptionandoperationofthemast isoutlinedinthesection MastDescription 4000 SRM1045.

TherepairproceduresfortheW20ZAandW25ZA mastsareoutlinedinthissection.

Themaincomponentsofthemastinclude:

• MastWeldments

• LiftCylinders

• Carriage

• LiftChains

• HydraulicTubing

Themastassemblyhaswearstripsandshimsthat preventweartothemastweldmentsandallowfor limitedadjustment.Thewearstripsarereplaceable componentswherefrictionpointscannotbeavoided, suchastheoutsideedgeofthechannelflange.Load rollerssustaintheforwardandbackwardforceson themastandcarriagewhilereducingfrictiononthe

mastweldments.Wearstripsmustbeshimmedperiodically,however,noadjustmentisnecessaryforload rollers.Both maybereplacedwhennecessary.Refer to MastRepair,Remove.

WARNING

Themastandcarriageassembliesandtheir componentsareheavy.Tohelppreventdamageorinjury,aliftingdevicemustbeused duringallserviceprocedures.

Themastassembliesmusthavethemastweldments parallelwithequalclearanceoneachsidebetween allweldments.Correctoperationdependsonperiodiccleaning,lubrication,shimmingthewearstrips, andadjustmentoftheliftchains.

NOTE: Forthepropermaintenanceandinspection proceduresforthemast,hydrauliccylinders,forks, chains,andcarriagesforyourtruck,see Periodic Maintenance 8000SRM1048.

NOTE: Thecarriagecanberemovedfromthemast assemblywiththeloadbackrestandforksinstalled. Likewise,themastcanberemovedfromthetruck withoutremovingthecarriage.Performonlytheproceduresnecessaryforrepair.

SafetyProceduresWhenWorkingNearMast

ThefollowingproceduresMUSTbeusedwheninspectingorworkingnearthemast.Additionalprecautionsandprocedurescanberequiredwhenrepairingorremovingthemast.

WARNING

Mastpartsareheavyandcanmove.Distances betweenpartsaresmall.Seriousinjuryor deathcanresultifpartofthebodyishitby partsofthemastorthecarriage.

•Neverputanypartofthebodyintoorunder themastorcarriageunlessallpartsarecompletelyloweredorasafetychainisinstalled. Alsomakesurethepowerisoffandthekey isremoved.PutaDONOTOPERATEtagin theoperator’scompartment.

•Becarefuloftheforks.Whenthemastis raised,theforkscanbeataheighttocause aninjury.

•DONOTclimbonthemastorlifttruckatany time.Usealadderorpersonnellifttowork onthemast.

•DONOTuseblockstosupportthemastweldmentsnortorestraintheirmovement.

•Mastrepairsrequiredisassemblyandremovalofpartsandcanrequireremovalof themastorcarriage.FollowtherepairproceduresinthecorrectServiceManualfor themast.

WHENWORKINGNEARTHEMASTALWAYS:

•Lowerthemastandcarriagecompletely. PushtheLOWERbuttonandmakesure thereisnomovementinthemast.Make sureallpartsofthemastthatmovearefully lowered.

2. Raisethemasttoalignthebottomcrossmember oftheinnerweldmentwiththetopoftheouter weldment.SeeFigure1.

3. Usea9.5mm(3/8in.)minimumsafetychain withahooktofastentheweldmentstogetherso theinnerweldmentcannotlower.Putthehook onthebacksideofthemast.Makesurethehook iscompletelyengagedwithalinkinthechain. Makesurethesafetychaindoesnottouchlift chainsorchainsheaves,tubes,hoses,fittings,or otherpartsonthemast.

4. Lowerthemastuntilthereistensioninthe safetychainandtheliftcylinderiscompletely retracted.Ifrunning,stoptheengine.Applythe parkingbrake.Installa DONOTREMOVE tagonthesafetychain(s).

NOTE: Afterloweringorrestrainingthemast,shut offthepowerandremovethekey.Puta DONOT OPERATE tagintheoperator’scompartment.

•Ifpartsofthemastmustbeinaraisedposition,installasafetychaintorestrainthe movingpartsofthemast.Connectmoving partstoapartthatdoesnotmove.Follow theseprocedures:

1. Putthemastinaverticalposition.

Figure1.SafetyChaintheMast

MastRepair

REMOVE

Thefollowinginstructionsareformastremoval. Mastremovalmaynotbenecessarytoperformsome repairs,suchasremovingtheliftcylinders.See Lift Cylinders 4000SRM1047,Remove.Removethe mastonlyifnecessary.

WARNING

Mastpartsareheavyandmayshift.Distances betweenpartsaresmall.Seriousinjurycanresultifpartofthebodyishitbypartsofthemast orcarriage.Aliftingdevicemustbeusedto supportorliftthemastcomponents.

WARNING

Donotmakerepairsoradjustmentsunless specificallyauthorizedtodoso.Repairsand adjustmentsmustbeperformedbytrained servicetechnicians.

WARNING

Neverallowanyoneunderaraisedcarriage. Donotput anypartofyourbodyinorthrough theliftmechanismunlessallpartsofthemast arecompletelyloweredandthebatteryisdisconnected.

Alwaysreadandfollow ALL warningsandwearprotective clothingandeyeprotection.

1. Movelifttrucktoasafelocationwhereworkcan beperformed.Positiontruckwheremastcanbe accessedbyacraneoroverheadliftingdevicebeforebeginningwork.

2. Removecarriagefrommast.SeeCarriageRepair.

3. Turnkey switchto OFF position,disconnectbattery,andtagcontrolhandle DONOTOPERATE.Blockwheelstopreventmovement.

4. Disconnecthydraulichosefromtubeassembly. SeeFigure2.Capfittingonhydraulichoseand plugtubeassemblytocontainoilleakage.

5. Removetwomastmountingcapscrews.SeeFigure4.

6. Loosenmastsetscrews.SeeFigure3.

WARNING

Useonlyliftingdeviceswithacapacitygreater thantheweightoftheobjectbeinglifted.

7. Attachanoverheadliftingdevicetoouterweldmentathookpoint.SeeFigure4.

CAUTION

Iflifttruckbeginstoriseofftheground whenliftingmast,lowerthelifttruckIMMEDIATELYandcontinuepryingandlifting alternately.

8. Slowlyraisemastinsmallincrementsusingan overheadliftingdevice. DONOT allowtruckto beraisedoffthegroundwhileliftingmast.Lift approximately5mm(.25in.)atatimeprying crossmemberoutofmountingbracketswitha prybarbetweenlifts.SeeFigure3.Continue untilmastisfreefrommountingbrackets.

9. Placemastfrontsidefacedownacrosstwohardwoodblocksonfloorwhereitcanbedisassembled ortransported.

Figure2.TubeAssembly

1.MASTSETSCREWANDJAMNUT

2.TUBEASSEMBLY

DISASSEMBLE

WARNING

Donotmakerepairsoradjustmentsunless specificallyauthorizedtodoso.Repairsand adjustmentsmustbeperformedbytrained servicetechnicians.

WARNING

Becarefulwheninstalling/removingsnap rings.Usesnapringpliers.Alwayswearprotectiveclothingandeyeprotection.

WARNING

Mastpartsareheavyandmayshift.Distances betweenpartsaresmall.Seriousinjurycanresultifpartofthebodyishitbypartsofthemast orcarriage.Aliftingdevicemustbeusedto supportorliftthemastcomponents.

Mastdisassemblyisperformedwiththemastfront sidefacedownacrosstwohardwoodblocksonfloor

withthecarriageremoved.RefertoRemove.The followinginstructionsdescribethestepsfordisassemblingthemast.SeeFigure7.

1. Removeoperatorguard.

2. Removecapscrews(29)andwashers(28)attachingleftandrightbracketsanddamperstomast. Disassemblebracketsfromdamperbyremoving nut(17),screw(12),andwashers(14).

1.HOOKPOINT

2.MASTMOUNTING

3.CROSSMEMBER

Figure3.MastSetscrewsandTubeAssembly

Figure4.MastRemoval

3. Removetubingassembly.Capfittingsonbottom ofliftcylinderstopreventoilleakage.

4. Removesnaprings,shims,andwashersfromtop ofliftcylinderrods.SeeFigure7.

5. Pullinnerweldmentoutuntilclearofliftcylinderrods.

6. RemoveO-ringandspacerfromliftcylinderrod.

7. Removesnapringandwasherfromfittingonbottomofliftcylinders.SeeFigure5.

8. Attachanoverheadliftingdeviceandslingtolift cylinder.Tightentheliftingdevicejustenoughto supporttheliftcylinderwhencylinderretainer isremoved.Removecylinderretainerandlift cylinder.Repeatforotherliftcylinder.

9. Pullinnerweldmentapproximatelythreefourthsoutofouterweldment.

10. Placetwohardwoodblocksonthefloorpositioned toholdtheinnerweldmentwhenremoved.

11. Attachanoverheadliftingdeviceandchainor slingtoeachsideofinnerweldment.Tighten overheadliftingdeviceuntilweightisoffload rollers.SeeFigure6.

12. Slideinnermastcompletelyoutofouterweldmentandlowerontohardwoodblocks.Remove chainorslingfrominnerweldment.

13. Removesnapringsandloadrollersfrominner weldment.

14. Removesheaveassemblies:

a. Removecotterpin.

b. Removepinusinghammerandsoftpunch.

c. Removesheavesandwashers.SeeFigure7.

15. Removefourwearstrips,shims,andsecuring Allen-headscrews(twoeach)fromweldments.

Figure5. TubingAssemblyandHydraulic Fitting

Figure6.MovingtheInnerWeldment

ASSEMBLE WARNING

Donotmakerepairsoradjustmentsunless specificallyauthorizedtodoso.Repairsand adjustmentsmustbeperformedbytrained servicetechnicians.

WARNING

Becarefulwheninstalling/removingsnap rings.Usesnapringpliers.Alwayswearprotectiveclothingandeyeprotection.

WARNING

Mastpartsareheavyandmayshift.Distances betweenpartsaresmall.Seriousinjurycanresultifpartofthebodyishitbypartsofthemast orcarriage.Aliftingdevicemustbeusedto supportorliftthemastcomponents.

Mastassemblyproceduresareperformedwiththe mastweldmentsfrontsidefacedownacrosswooden blocks.Thebottomoftheinnerweldmentshouldbe positionedjustabovethetopoftheouterweldment. Alwaysreadandfollow ALL warningsanddirections andwearprotectiveclothingandeyeprotection.

1. Installfourwearstripsandshims(asnecessary) toweldmentsusingcapscrews(22).Torqueto 10N•m(89lbfin).

2. Installsheavesandwasherstoinnerweldment usingpin.Securepinusingcotterpin.

3. Installloadrollerstoinnerweldmentusingsnap rings.

4. Installinnerweldmentintoouterweldment:

a. Installachainorslingandoverheadlifting devicetoinnerweldment.

b. Liftinnerweldmentandpositiontoouter weldment.

c. Slideinnerweldmentintoouterweldment untilitrollsfreelyonloadrollers.

d. Removechainorslingandoverheadlifting device.

5. Installliftcylindersusingaliftingdevice:

a. Positionfittingandpinonbottomofliftcylinderintoholesinmountingplateonouter weldment.

b. Positiontopendofliftcylindersinplaceand securewithcylinderretainer.

c. InstallspacerandO-ringtotopofliftcylinder.

d. Installwasherandsnapringtofittingonbottomofliftcylinder.SeeFigure5.

e. Repeatforotherliftcylinder.

f. Pullinnerweldmentdownontoliftcylinder rodsuntilcompletelylowered.

g. Installwashers,shims,andsnapringstotop ofliftcylinderrods.SeeFigure7.

6. Assemblebracketsanddampersusingscrews, washers,andnuts.Installtheleftandright damperandbracketassembliestothemastusingcapscrewsandlockwashers.

7. Removeplugsfrombottomofcylindersandinstallhydraulicfittings.

8. Installtubingassemblytobottomofliftcylinders.SeeFigure5.

9. Installoperatorguard.

INSTALL

Thefollowinginstructionsdescribetheproperprocedureforinstallingthemasttotheframeofthelift truck.Alwaysreadandfollow ALL warningsand directions.

Thank you very much foryourreading.Please Click Here Then Get MoreInformation.

NOTE: If there is no response to click on the link above, please download the PDF document first and then clickonit.

WARNING

Donotmakerepairsoradjustmentsunless specificallyauthorizedtodoso.Repairsand adjustmentsmustbeperformedbytrained servicetechnicians.

WARNING

Mastpartsareheavyandmayshift.Distances betweenpartsaresmall.Seriousinjurycanresultifpartofthebodyishitbypartsofthemast orcarriage.Aliftingdevicemustbeusedto supportorliftthemastcomponents.

WARNING

Neverallowanyoneunderaraisedcarriage. Donotputanypartofyourbodyinorthrough theliftmechanismunlessallpartsofthemast arecompletelyloweredandthebatteryisdisconnected.

WARNING

Useonlyliftingdeviceswithacapacitygreater thantheweightoftheobjectbeinglifted.

Alwayswearprotectiveclothingandeyeprotection.

1. Attachoverheadcraneorhoisttomastathook point.RefertoFigure4.

CAUTION

Checkthatcrossmemberiscompletelyseated beforeremovingoverheadliftingdevice.

2. Raisemasttoaverticalpositiondirectlyinfront oftruckusingoverheadcraneorhoist.Place backofmastagainstfrontoftruckandlower crossmemberofmastintoreceiveronframe.

3. Centermastusingmastsetscrewsandinstall mastmountingcapscrews.

4. Torquemastmountingcapscrewsto225N•m (166lbfft).SeeFigure4.

5. Installhydraulicsupplyhosetotubingassembly. SeeFigure2.

6. Tightenmastsetscrews.Tightenjamnutuntilit touchesframeandthentightenonehalfturnto securesetscrews.

7. Checkhydraulicoillevelandfilltothe FULL markifnecessary.

8. Installcarriage.SeeCarriageRepair.

CAUTION

Theairmustbebledfromthehydraulicsystem beforethetruckisputintooperation.

9. Bleedairfromhydraulicsystem:

a. Connectbatteryandturnkeyswitchto ON position.

b. Fullyextendandthenlowermastseveral timestopurgeairfromthehydraulicsystem.

c. Loosenbleedscrewsneartopofcylinders.

d. Brieflypressandrelease LIFT button.Repeatuntilhydraulicoilflowsfrombleed screwswithoutbubbling.

e. Retightenbleedscrews.

f. Cleanupspilledhydraulicoil.

g. Raiseandlowermasttocheckforproperoperation.

h. Repeatproceduresforbleedinghydraulic systemifnecessary.

10. Adjustchainstopropertension.SeeLiftChain Adjustmentinthissection.

11. Removeblocksfromdrivetireandremove DO NOTOPERATE tagfromcontrolhandle.Check mastforproperoperationbeforereturningtoservice.

Figure7.MastAssembly

CarriageRepair

REMOVE

Forthefollowingremovalsteps,refertoFigure8.

1. Putaone-quartercapacityloadonforks.

NOTE: Theloadprovidesstabilitytopreventthecarriagefromfallingwhenitisremovedfrommast.If mastisdisabled,liftandthenlowercarriageonto palletusinganoverheadliftingdevice.Thenload forksusinganotherlifttruck.

2. Lowercarriageandforksontoapalletsothatlift chainsbecomeloose.

3. Turnkeyswitchto OFF positionanddisconnect battery.

WARNING

Whendisconnectingtheliftchains,keepcontroloftheends.Preventtheliftchainsfrom fallingfromthesheavesandcausinganinjury ordamage.

4. Disconnectliftchains:

a. Removechainanchorsfromouterweldment ofmastbyremovingcotterpinsandnuts.

b. Connectatagtoeachliftchainspecifying fromwhichsideitwasremoved.

c. Removecotterpinandpinfromchainanchor atcarriage.

d. Storechainsinacleanboxorbucket.

5. Connectbatteryandturnkeyswitchto ON position.

WARNING

Tohelppreventpossibleinjury,makesurethe carriageisstablewhentheinnermastweldmentisabovetheloadrollersofthecarriage.

6. Raiseinnermastweldmentbypressing LIFT button.Ifmast isdisabled,disconnectliftcylindersfrominnerweldment.See LiftCylinders 4000SRM1047. Connectanoverheadliftingdevicetotopofinnerweldment.Carefullyraise innerweldmentuntilitisabovecarriageload rollers.

7. Movelifttruckawayfromcarriage.Ifusingan overheadliftingdevice,movepalletusinganotherlifttruck.Completelylowerinnerweldment.

DISASSEMBLE

Totaldisassemblymaynotbenecessarytorepaircarriage.Onlyperformstepsnecessarytomakerepairs. SeeFigure8.

WARNING

Forksareheavy.Usealiftingdeviceandasling tomovetheforksifnecessary.

WARNING

Becarefulwhenremovingsnaprings.Usesnap ringpliers.Alwayswearprotectiveclothing andeyeprotection.

1. Connectaliftingdevicetotopofloadbackrest. Removeloadfromforkswithanotherlifttruck.

2. Removeforksfromcarriage.See ForkRepair, Remove.Tageachforkwithtruckserialnumber. Storeforksontheirside.

3. Lowercarriagetofloorsothatloadrollersare facingup.

4. Removeloadbackrest.

5. Removesnapringsandloadrollers.

ASSEMBLE

WARNING

Forksareheavy.Usealiftingdeviceandasling tomovetheforksifnecessary.

WARNING

Becarefulwheninstallingsnaprings.Use snapringpliers.Alwayswearprotectiveclothingandeyeprotection.

RefertoFigure8forthefollowingprocedures.

1. Installloadrollersandsnaprings.

2. Positionloadbackrestoncarriageandinstall fourcapscrews.Torqueto75N•m(55lbfft).

3. Connectaliftingdevicetotopofloadbackrest.

4. Raisecarriagetoanuprightposition.

5. Locateforksandverify numbertaggedonforks matchesthetruckserialnumber.

6. Installforkstocenterofcarriagesotopoffork hangsoncarriageandlowerportionoffork passesthroughforkremovalnotch.Placelatch pinassemblyin UP positionandslideforks toeitherside.Placelatchpinassemblyinthe DOWN positionandcheckthatforkislocked intoplace.

7. Installforkretainingcapscrew.

Figure8.CarriageAssembly

INSTALL

1. Connectaliftingdevicetocarriageandposition carriageonapalletforinstallation.

2. Placeaone-quartercapacityloadonforksand disconnectoverheadliftingdevice.

NOTE: Theloadprovidesstabilitytopreventthecarriagefromfallingwhenitisinstalledtothemast.

3. Movelifttruckormovecarriageusinganother lifttrucktopositioncarriageloadrollersdirectly infrontofmastinnerweldment.

4. Raiseinnermastweldmentbypressing LIFT button.Ifmastisdisabled,connectanoverhead liftingdevicetotopofinnerweldment.Raise innerweldmentuntilitisabovecarriageload rollers.

5. Positioncarriagesoloadrollersaredirectlyunderinnerweldmentanddirectlybetweenchannelsofouterweldment.

6. Slowlylowerinnerweldmentontocarriageload rollersbypressing LOWER button.Stopto checkthatloadrollersareenteringinnerweldmentchannelscorrectly.Ifbindingoccurs,raise innerweldmentandrepositioncarriageasnecessary.

WARNING

Wheninstallingtheliftchains,keepcontrolof theends.Preventtheliftchainsfromfalling fromthesheavesandcausinganinjuryordamage.

7. Installliftchainsasremoved:

a. Positionchainanchorsthroughmounting holesinouter weldment.

b. Installnutsandcotterpintochainanchors.

c. Routeliftchainsthroughthechainsheaves mountedtothetopoftheinnerweldment.

d. Installchainstochainanchorsoncarriage.

e. Installpinstochainanchors.

8. Connectbatteryandturnkeyswitchto ON position.

9. Raiseinnerweldment50-75mm(2-3in.)by pressing LIFT button.Removepalletfromundercarriage andlowermastcompletelybypressing LOWER button.Ifmastisdisabled,raise andlowermastusinganoverheadliftingdevice andconnect liftcylinderstoinnerweldment.See LiftCylind ers 4000SRM1047.

10. Checkmastforproperoperationandliftchain adjustment.Adjustliftchainsifnecessary.See LiftChainAdjustmentinthissection.

ForkRepair CHECK

Theforks areheldonthecarriagebyhooks.The forksare keptinpositionbylatchpinsthatfit throughthetopforkhooksandintoslotsinthetop barofcarriage.Alwayscheckthatthelatchpins keepthe forksinpositiononthecarriage.Replace damaged latchpinparts.Theforkscanberemoved fromthe carriageforreplacementorstorage.

Inspecttheforksforcracksandwear.SeeFigure9. Checkthattheforktipsarealignedwithin3percent ofeachforklength[32mm(1.26in.)forastandard 1067mm(42in.)fork].Someapplicationscanrequirecloseralignment.Checkthatthebottomofthe forkisnotworn.Checkthatthethicknessofthe forkbladeisatleast90percentofthethicknessof thefork shank(DIMENSIONX).Thefork’sthicknesscanalsobecheckedusingforktool3140731.

0914mm(36in.)

1067mm(42in.)

1220mm(48in.)

1371mm(54in.)

1524mm(60in.)

1.TIPALIGNMENT(MUSTBEWITHIN3%OF FORKLENGTH)

2.CRACKS

3.LATCHDAMAGE

REMOVE

WARNING

27mm(1.10in.)

32mm(1.26in.)

37mm(1.46in.)

40mm(1.57in.)

46mm(1.81in.)

4.THICKNESSOFBOTTOMOFFORK(MUSTBE 90%OFDIMENSIONX)

5.FORKBLADE(BOTTOMOFFORK)

6.FORKTOOL3020387

Figure9.ChecktheForks

Forksareheavy.Usealiftingdeviceandasling tomovetheforksifnecessary.

Removetheforkretainingcapscrew.Slidethefork totheforkremovalnotchinthebottombarofthe carriage.SeeFigure10andFigure8.Lowerthe tipoftheforkontoblockssothebottomhookofthe forkmovesthroughtheforkremovalnotch.SeeFigure10.Lowerthecarriagefurthersothetophook oftheforkisdisengagedfromthetopcarriagebar. Movethecarriageawayfromthefork,orusealiftingdevicetomovetheforkawayfromthecarriage.

INSTALL

WARNING

Forksareheavy.Usealiftingdeviceandasling tomovetheforksifnecessary.

Positiontheforktocarriagesothetophookonthe forkcanengagetheuppercarriagebar.Raisethe carriageorlowertheforktomovethelowerhook throughtheforkremovalnotch.Slidetheforkon thecarriagesobothupperandlowerhooksengage thecarriagebars.Engagethelatchpinswithanotch intheuppercarriagebar.Installtheforkretaining capscrew.SeeFigure10andFigure8.

3.BLOCKS

LiftChainAdjustment

INSPECT WARNING

Allchains,ropes,andliftingequipmentMUST befullyexaminedbyqualifiedpersonnelat leastonceayearormoreatfrequentintervals accordingtothelocalconditionsofuse.

Whenworkingonornearthemast,seeSafety ProceduresWhenWorkingNearMastinthis section.

Neverallowanyoneunderaraisedcarriage. DONOTputanypartofyourbodyinor throughtheliftmechanismunlessallparts ofthemastarecompletelyloweredandthe batteryisdisconnected.

Thechainsmaybeinspectedwhileinpositiononthe truck.Usesolventtocleanthechainsperiodically andbeforeinspecting.Lubricatethechains IMMEDIATELY aftercleaning. DONOT usesteamto cleanthechains.

Inspectthechainsandassociatedcomponentsforthe followingdefects:

• Damagedormissinglinkplates

• Loosepinsorpinswithdamagedheads

• Pinsthatrotateinthepinlinkplate

• Chaindoesnotflex

• Wearontheedgesofthepinlinkplatescausedby chainsslidingoversheave

• Damagetothelockingmechanismoftheanchor pin

• Wearand/orcorrosionoftheanchorpin

• Chainwearand/orsignsofstressbetweenthepin andthelinkplateand/orassociatedcomponents Ifanyoftheabovedefectsarefound,thechain(s) MUST bereplaced.

ADJUST

WARNING

Allchains,ropes,andliftingequipmentMUST befullyexaminedbyqualifiedpersonnelat leastonceayearormoreatfrequentintervals accordingtothelocalconditionsofuse.

WARNING

Donotmakerepairsoradjustmentsunless specificallyauthorizedtodoso.Repairsand adjustmentsmustbeperformedbytrained servicetechnicians.

WARNING

Whenworkingonornearthemast,seeSafety ProceduresWhenWorkingNearMastinthis section.

Neverallowanyoneunderaraisedcarriage. DONOTputanypartofyourbodyinor throughtheliftmechanismunlessallpartsof themastarecompletelylowered.

Whentheliftchainsarecorrectlyadjusted:

• Thetension MUST bethesameoneachchainof thechainset.Checktensionbypushingonboth chainsatthesametime.

Figure10.HookForkRemoval