Disassembly and Assembly
Final Drive - Disassemble
Note: Cleanlinessisanimportantfactor Beforethedisassemblyprocedure,thoroughly cleantheexteriorofthecomponent.Thisactionwillpreventdirtfromenteringtheint ernal mechanism
1. Putanalignmentmarkacrossthesectionsofthefinaldriveforassemblypurposes.The partsmustbereinstalledintheoriginallocations
2. FastenthefinaldrivetoTooling(A),asshown.Thecombinedweightofthefinaldrive and finaldrivesprocketisapproximately312kg(688lb).
3. Removebolts(1)andthewashersthatholdthecoverinposition
Illustration2
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4. Removethesetscrewsfromcover(2),andfastenTooling(B)andasuitableliftingdevi ceto cover(2),asshown.Theweightofcover(2)isapproximately32kg(70lb).Removeco ver (2).
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5. Removethrustplate(3)fromcover(2).
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6. Removeplugs(4)fromcover(2).
Illustration4
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7. RemoveO-ringseals(5)frombothplugs(4)thatwereinthecover
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8. Removespacer(6)fromcarrierassembly(7).
9. Removesungear(8)fromcarrierassembly(7).
10. Removecarrierassembly(7)byliftingthecarrierassemblystraightup Theweight of carrierassembly(7)isapproximately14kg(30lb).
Illustration6
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11. Disassemblecarrierassembly(7),asfollows.
a Drivespringpin(10)intoplanetaryshaft(9)withahammerandapunch
Illustration7
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b. Removeplanetaryshaft(9)withspringpin(10)fromthecarrierassembly
c. Removespringpin(10)fromplanetaryshaft(9)withahammerandapunch.
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d. Removethrustwashers(11)andplanetarygear(13)fromthecarrierassembl y
e. Removebearing(12)fromplanetarygear(13).
12. RepeatSteps11.athrough11.einordertoremovetheremainingplanetarygearsfro mthe carrierassembly
Illustration9
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13. Removesungear(14)fromcarrierassembly(15).
Illustration10
14. Removespacer(16).
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Note: Itwillbenecessarytopryringgears(17)awayfrommainhousing(18)inord erto installtheliftingslings.
15. Fastenasuitableliftingdevicetoringgears(17),asshown.Removetheringgearsf rom mainhousing(18).Theweightofringgears(17)isapproximately45kg(100lb).
Illustration12
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16. Useascrewdriverorachiselinordertoseparatetworinggears(17).
Note: Tworinggears(17)areheldtogetherwithTooling(F).Itmaybenecessaryto heat ringgears(17)inordertosoftenthesealant.Donotheatover135°C(275°F)form ore thanthirtyminutes.
17. Positiona12.7mm(0.50inch)shackleundercarrierassembly(15).
18. Fastenasuitableliftingdevicetotheshackle.
19. Slowlyliftcarrierassembly(15)fromthefinaldrive.Theweightofcarrierassembly( 15)is approximately39kg(85lb).
20. Disassemblecarrierassembly(15),asfollows.
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a. Drivespringpin(20)intoplanetaryshaft(19)withahammerandapunch.
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b. Removeplanetaryshaft(19)withspringpin(20)fromthecarrierassembly.
c Removespringpin(20)fromplanetaryshaft(19)withahammerandapunch
d. Removethrustwashers(21)andplanetarygear(23)fromthecarrierassembl y
e. Removebearings(22)fromplanetarygear(23).
21. RepeatSteps20athrough20einordertoremovetheremainingplanetarygearsfro mthe carrier.
Illustration17 g00708186
22. RemoveO-ringseal(24)frommainhousing(18).
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