Link Belt 75RT Crane Service Manual by Heavy Equipment Manual

                     

   

      



FrontAndRearAxles, Recondition

Thisprocedurecoversthereconditionofthefrontand rearaxleassemblieswithoutdifferentiallock.SeeSM KeysheetArea01---002forreconditionofaxleswithdifferentiallock.Forfrontaxleremovalandinstallation procedure,seeSMKeysheetArea01---004.Forrear axleremovalandinstallationprocedure,seeSMKeysheetArea01---029.

SafetyInstructions WARNING

Readandunderstandthefollowingsafety instructionsbeforeattemptingtoperformany ofthetasks.Thesubassembliesareheavy. Removalfromtheaxlehousingcausesthe unittobecomeunstable.Potentialforsevere injuryispresentifallsafetyinstructionsare notstrictlyfollowed.

Note:Eachaxleassemblyweighsapproximately3,000lb(1360kg).Eachaxleassembly includingsteercylindersweighsapproximately 3,140lb(1425kg).

1.Mountaxleassemblyonsupportswiththedifferentialcarrierassemblyfacingup.Securetosupports withC---clampsorsimilarmeans.

2.Whenhandlingsubassemblies,alwayskeepthe loadwellbalanced,andaslevelaspossible.Move slowlyandkeeptheloadundercontrol.Donotattempttohandlesubassemblieswithoutassistance.

3.Whenliftingsubassemblies,useonlyaliftingdevicewhichhasthepropercapacitytohandlethe load.Allriggingusedmustbeingood,sound conditionandbethepropersizeforthejobtobe performed.

4.Failuretofollowtheseinstructionsduringrigging operationsmayresultindamagetoequipmentor injurytopersonnel.

DisassemblyOfTheFrontAndRear SteerAxleAssemblies

Duringthedisassemblyprocess,inspectbothcupand coneofalltaperedrollerbearings.Ifeithercomponent isdamaged,theymustbereplacedasaset.Labeland tagassemblylocationwheneverabearingistoberemoved.

WARNING

Followallmanufacturersrecommendations concerningsolventsandcleaningsolutions. Seriouspersonalinjurymayresultfrom misuseoftheseproducts.

1.Thebreatherandallotheropeningsshouldbe tightlycoveredorclosedtopreventthepossibility ofsolventfromenteringtheassembly.Thoroughly cleantheexterioroftheaxlewithanapproved cleaningsolvent.Allowtoairdry.

Note:Thedisassemblyandassemblyproceduresofbothrightandlefthandwheelend planetaryassembliesareidentical.

2.Ifrequired,removerearsteerindicator. Rearaxle only.

3.Ifrequired,removesteeringcylinders.RefertoSM KeysheetArea01---007forcorrectprocedure. RefertoFigure1.

4.Removecotterpins(45)andcastlenuts(44)from tierodend(48).

5.Usingatierodflaretool,separatetierodend(48) fromsteeringknucklehousing(26)andremovetie rod(46)assembly.

Note:Twotypesoftierodendsareavailable.In eithercasetoaidtheassemblyprocess,count andrecordthenumberofrevolutionsthatare requiredtoremovetierodend(48)fromtierod (46).

6.Removetherodendusingoneofthefollowing stepsasrequired:

a.Loosenlocknut(47)andremovetierodend (48).

b.Loosennut(54)andremovetierodend(48) fromtierod(46).Ifrequired,removenut(54), lockwasher(55),capscrewandwasher(57), andtierodclamp(56)fromtierod(46).

Note:Axlehousing(42)anddifferentialcarrierhousing(109)oilcapacityis40pt(19L). Planetaryhubhousing(36)oilcapacityis8pt (3.75L)each.

7.Removeplugs(20,35,62,65)andbreather(63). Usingasuitablecontainer,drainaxlehousing(42), differentialcarrierhousing(109),andplanetary hubhousing(36)thoroughlybeforedisassembly. Properlystoreordisposeofusedoil.

ServiceManual 0907 SM01---002---023.00 1of24

ServiceManual 0907 SM01---002---023.00 2of24 1.O---rings 2.Shafts 3.ThrustWashers 4.PlanetaryGears 5.ThrustWashers 6.ThrustButton 7.JamNut 8.Locktab 9.AdjustmentNut 10.WheelStuds 11.PlanetaryHub 12.PlanetaryRingGear 13.ThrustWasher 14.SunGear 15.SnapRing 16.ThrustButton 17.Setscrews 18.PlanetaryCarrierHousing 19.Capscrews&Lockwashers 20.Plug 21.Nuts&Lockwashers 22.Spindle 23.Studs 24.Bushing 25.Seal 26.SteeringKnuckleHousing 27.ShimPack 28.Seal 29.UpperKingpinCap 30.Capscrews 31.GreaseFitting 32.Capscrew&Nut 33.BearingCone 34.BearingCup 35.Plug 36.PlanetaryHubHousing 37.BearingCup 38.BearingCone 39.Seal 40.BrakeRotor 41.Capscrews&Lockwashers 42.AxleHousing 43.AxleShaftAssembly 44.CastleNut 45.CotterPin 46.TieRod 47.Locknut 48.TieRodEnd 49.GreaseFitting 50.LowerKingpinCap 51.Seal 52.ShimPack 53.Capscrews 54.Nut 55.Lockwasher 56.TieRodClamp 57.Capscrew&Washer 58.Locktab 59.Capscrews Figure1 FrontandRearAxleAssembly 42 36 41 40 38 39 34 33 11 12 5 4 3 19 18 16 20 17 30 37 32 25 24 23 26 27 50 49 51 31 55 21 10 44 45 15 13 14 22 48 28 29 54 48 46 B B Optional 47 A Optional A 58 56 57 46 59 53 52 6 9 8 7 1 2

ServiceManual 0907 SM01---002---023.00 3of24 60.ExpansionPlugs 61.Bushings 62.Plug 63.Breather 64.Studs 65.Plug 66.Bushing 67.Seal 68.Capscrews 69.Lockwashers 70.BearingCaps 71.DowelPins 72.Capscrews&Lockwashers 73.DifferentialCasePlainHalf 74.ThrustWasher 75.DifferentialSideGear 76.DifferentialSpider 77.Capscrews 78.Nuts&Lockwashers 79.BearingAdjuster 80.BearingCup 81.BearingCone 82.DifferentialCaseFlangeHalf 83.RingGear 84.ThrustWasher 85.DifferentialSideGear 86.DifferentialPinionGears 87.ThrustWashers 88.ThrustStop 89.Locknut 90.SnapRing 91.Bearing 92.ShimPack 93.Pinion 94.BearingCone 95.BearingSpacer 96.Capscrews&Lockwashers 97.BearingCone 98.InputFlange 99.O---ring 100.Washer 101.Locknut 102.Deflector 103.Seal 104.BearingCup 105.PinionHousing 106.Gasket 107.BearingCup 108.Nuts&Lockwashers 109.DifferentialCarrierHousing 110.BearingAdjuster 111.BearingCup 112.BearingCone 113.CotterPins FrontandRearAxleAssembly,Continued 112 111 110 72 77 65 64 63 62 42 78 79 80 81 82 83 73 86 92 91 90 93 94 95 96 74 75 76 87 88 89 113 60 61 85 84 108 61 60 109 107 106 66 67 97 98 99 100 101 103 102 105 104 68 69 70 71

CAUTION

Usecarewhiledisassemblingwheelends. Brakeliningscontaminatedwithexcessive amountsofgrease/lubricantscannotbe salvagedorcleaned.

Note:Matchmarktheplanetarycarrierhousing (18)toplanetaryhubhousing(36)forassembly purposes.

8.Removeallbuttwo,sidebysidecapscrewsand lockwashers(19)retainingplanetarycarrierhousing(18)assemblytoplanetaryhubhousing(36).

9.Rotateplanetaryhubhousing(36)assemblyuntil thelasttwocapscrewsandlockwashers(19)are locatedatthetop.Loosenbutdonotremove,the lasttwocapscrewsandlockwashers(19).

10.Installthreecapscrewsandlockwashers(19)into jackholesprovidedinplanetarycarrierhousing (18)andinstalluntilbondisbrokenonjointbetweenplanetarycarrierhousing(18)andtoplanetaryhubhousing(36).Removecapscrewsand lockwashers(19)usedasjacks.

11.Properlysecureanappropriateliftingdevicetothe planetarycarrierhousing(18)assemblyandremovealltheslack.

12.Removeremainingtwocapscrewsand lockwashers(19).

WARNING

Planetaryringgear(12)isnotsecuredtothe planetaryhub(11).Careshouldbetakento preventthisgearfromaccidentallyfallingout whenplanetarycarrierhousing(18)assembly isremoved.Potentialforsevereinjuryis presentifsafetyprecautionsarenot observed.

13.Removeplanetarycarrierhousing(18)subassembly.

14.Removeplanetaryringgear(12).

15. Ifrequired,disassembleplanetarycarrierhousingsubassembly:

a.Removesetscrews(17).

b.Forassemblypurposes,matchmarkshafts(2) toplanetarycarrierhousing(18).

c.Usingashoppress,removeshafts(2)from planetarycarrierhousing(18).

d.Removeo---rings(1)fromshafts(2).

Note:Forassemblypurposes,recordthe positionoftangslocatedonthrustwashers (3,5)toindentsinplanetarycarrierhousing (18).

e.Removethrustwashers(3,5)andplanetary gears(4).

16.Removethrustbuttons(6,16),snapring(15),sun gear(14),andthrustwasher(13).

Note:Someaxleassemblieshaveajamnutand somehavealocktab(58)securedby capscrews(59)usedforsecuringadjustment nut(9).

WARNING BrakeLiningFiberWarning

Olderbrakeliningsmaycontainasbestos fibers,acancerandlungdiseasehazard. Brakeliningsmanufacturedtodaycontain non--asbestosfibers,whoselong--term effectstohealthareunknown.Usecaution whenhandlingeitherasbestosor non--asbestosmaterialsusedinbrake linings.RefertoOSHAregulationsforproper handlingofthesematerials.MaterialSafety DataSheets(MSDS)regardingbrakelining materialscanbeobtainedfromyourlocal distributor.

CAUTION

Usecarewhiledisassemblingbrakes.Brake liningscontaminatedwithexcessiveamounts ofgrease/lubricantscannotbesalvagedor cleaned.

RefertoFigure2.

17. Removebrakecaliper:

a.Removecapscrews(10),washers(11),andremovebrakecaliperassembly.

18. Disassemblyofbrakecaliper:

Note:Ifshoeandliningassemblies(12)aregoingtobereused,protectthemfrombeingcontaminatedbylubricants,brakefluid,orother contaminants.

a.Removecapscrews(13),plates(14),andshoe andliningassemblies(12).

b.Removeplug(9),cap(8),andpiston(4)from housing(1).

ServiceManual 0907 SM01---002---023.00

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c.Removedustseal(3),backupring(5),ando--rings(6,7).

d.Ifrequired,removebleederscrew(2). RefertoFigure1.

19. Ifrequired,disassembleplanetarycarrierhousingandbrakerotor:

a.Removejamnut(7)andlocktab(8)thatsecure adjustmentnut(9).

b.Properlysecureanappropriateliftingdeviceto theplanetaryhubhousing(36)andbrakerotor (40)assemblyandremovealltheslack.

c.Removeadjustmentnut(9).

d.Installtheappropriatecapscrewsintojack holesprovidedinplanetaryhub(11).Screwin untilbearingcone(33)andplanetaryhub(11) assemblycanberemovedfromplanetaryhub housing(36).Taglocationofbearingcone(33) forassemblypurposes.Removecapscrews usedasjacks.

e.Ifrequired,removebearingcone(33)from planetaryhub(11).

f.Removeplanetaryhubhousing(36)andbrake rotor(40)assembly.

20. Ifrequired,disassembleplanetaryhub housingandbrakerotorsubassembly:

a.Removecapscrewsandlockwashers(41)and brakerotor(40).

b.Taglocationofbearingcone(38)forassembly purposes.Removeseal(39)andbearingcone (38).

c.Iftheymustberemoved,taglocationofbearingcups(34,37)forassemblypurposes.Removebearingcups(34,37)andwheelstuds (10)fromplanetaryhubhousing(36).

21. Ifrequired,removeanddisassemble spindleandsteeringknucklehousing subassemblies:

a.Removenutsandlockwashers(21)and spindle(22)subassemblyfromsteering knucklehousing(26).

b.Removeseal(25).

c.Inspectbushing(24)forwearand/ordamage. Ifitmustberemoved,useashoppressandthe correctsizedrivertoremovebushing(24).

22.Removeaxleshaftassembly(43).

23.Recordmeasurementandlabellocationofshim pack(27).Removecapscrews(30),upperkingpin cap(29),andshimpack(27).Ifrequired,remove greasefitting(31)fromupperkingpincap(29).

24.Properlysecureanappropriateliftingdevicetothe steeringknucklehousing(26)assemblyandremovealltheslack.

25.Recordmeasurementandlabellocationofshim pack(52).Removecapscrews(53),lowerkingpin cap(50),andshimpack(52).Ifrequired,remove greasefitting(49)fromlowerkingpincap(50).

26.Removesteeringknucklehousing(26)fromaxle housing(42).

27.Ifrequired,removestuds(23),capscrewandnut (32),andseals(28,51).

28.Removeseal(67)fromaxlehousing(42).

29.Inspectbushings(61,66)forwearand/ordamage. Replaceifrequired.Useashoppressandthecorrectsizedrivertoremovebushings(61,66)andexpansionplugs(60).

30.Properlysecureanappropriateliftingdevicetothe differentialcarrierhousing(109)subassemblyand removealltheslack.

31.Removenutsandlockwashers(108)securingdifferentialcarrierhousing(109)subassemblytoaxle housing(42).

32.Removedifferentialcarrierhousing(109)subassembly.

33.Ifrequired,removestuds(64)fromaxlehousing (42).

34.Ifdifferentialcarrierhousing(109)subassemblyis tobedisassembled,mountinastandsimilarto standillustratedinFigure3.

35. Ifrequired,disassembledifferential carrierhousingsubassembly:

a.Usingadialindicator,measureandrecordring gear(83)topinion(93)backlashandtotalendplayofdifferentialbearings.

CAUTION

Ifbearingcaps(70)arenotinstalledinthe correctlocations,theboresandthreadswill notmatchthedifferentialcarrierhousing (109).Itwillbedifficulttoassemblethe bearingcaps(70)onthedifferentialcarrier housing(109)anddamagetocomponents mayoccur.Donotforcethebearingcaps(70) intoposition.

b.Forassemblypurposes,matchmarkbearing caps(70)anddifferentialcarrierhousing(109).

c.Removecotterpins(113)andloosen capscrews(68)andbearingadjusters (79,110).

ServiceManual 0907 SM01---002---023.00 5of24