D6N Track-Type Tractor Power Train Caterpillar

Disassembly Procedure

Start By:

1. Remove the left final drive, the steering differential, and the brake. Refer to Disassembly and Assembly, "Final Drive, Steering Differential, and Brake (Left Side) - Remove"
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Illustration 1	g00993890

1. Remove bolts (1) and the washers.

2. Remove two opposite bolts (2).
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   Illustration 2	g00823691

3. Install Tooling (A) and a suitable lifting device.

4. Remove sliding carrier (3). The weight of sliding carrier (3) is approximately 48 kg (105 lb).

5. Remove Tooling (A).
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   Illustration 3	g06187075

6. Remove remaining bolts (2) and slinger (4) from planetary carrier (7).

7. Remove retaining ring (5), thrust ring (5A), and planetary carrier (7) from ring gear (6).
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   Illustration 4	g00823775

8. Remove O-ring seal (10) from planetary carrier (7).

9. Use a hammer and a punch to push pin (12) in shaft (11).

10. Remove shaft (11), planetary gear (9), discs (8), and bearing (13) from planetary carrier (7).

11. Remove pin (12) from shaft (11).

12. Repeat Steps 9 through 11 for the remaining planetary gears.
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    Illustration 5	g00823759

13. Remove lockring (14) and remove retaining ring (16).

14. Remove sun gear (15) from planetary carrier (18).

15. Remove spacer (17).
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    Illustration 6	g00995126

16. Remove bolts (19), plate (20), and gear (21) from planetary carrier (18).

17. Use Tooling (B) to compress the retaining ring that holds planetary carrier (18) in ring gear (6).

18. Separate planetary carrier (18) from ring gear (6).

19. Remove the retaining ring from planetary carrier (18).

20. Use a hammer and a punch to push pin (23) in shaft (24).
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    Illustration 7	g00823872

21. Remove shaft (24), planetary gear (22), discs (26), and bearing (25) from planetary carrier (18).

22. Remove pin (23) from shaft (24).

23. Repeat Steps 20 through 22 for the remaining planetary gears.
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    Illustration 8	g00823878

24. Place a bolt in the teeth of pinion gear (27) to prevent movement.
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    Illustration 9	g00823884

25. Bend the tang on lock washer (29) away from nut (28).

26. Use Tooling (C) to remove nut (28) from the pinion.

27. Remove lockwasher (29) and washer (30) from the pinion.

28. Remove bolts (32).

29. Remove carrier (31) from the support bracket.
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    Illustration 10	g00823890

30. Use Tooling (D) to force pinion (27) from bearing cone (33) and carrier (31).
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    Illustration 11	g00824243

31. Use Tooling (E) to remove bearing cone (34) from pinion (27).
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    Illustration 12	g00824263

32. Remove bearing cups (35) from carrier (31).
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    Illustration 13	g00824265

33. Remove bolts (36).

34. Remove support bracket (37) and shims (38) from the housing.

35. Remove bolts (39).

36. Remove bevel gear (40) from housing (41).
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    Illustration 14	g00824268

37. Attach Tooling (F) and a suitable lifting device to brake housing (42).
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    Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened.

38. Remove bolts (43).

39. Remove brake housing (42) from the final drive housing (44). The weight of brake housing (42) is approximately 150 kg (335 lb).
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    Illustration 15	g00824819

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    Illustration 16	g00824349

40. Remove bolts and washers (45).

41. Remove retainer (46) and thrust washer (47).

42. Remove hub (48), the friction discs, and brake plates (49).

43. If necessary, remove ring (50) from hub (48).

44. Remove thrust washer (51).
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    Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened.

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    Illustration 17	g00824351

45. Remove bolts (52) slowly.

46. Remove retainer (53), ring (54), and O-ring seal (55) from brake housing (42).
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    Illustration 18	g00824691

47. Remove bolts (56), plate (57), shim pack (58), piston (59), and spring (60) from brake housing (42).
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    Illustration 19	g00824366

48. Use Tooling (G) to separate brake housing (42) and bearing cone (61) from housing (41).

49. Attach Tooling (F) and a suitable lifting device to brake housing (42).

50. Remove brake housing (42) from housing (41). The weight of brake housing (42) is approximately 77 kg (170 lb). The weight of housing (41) is approximately 25 kg (55 lb).
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    Illustration 20	g00824415

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    NOTICE
    The component will be destroyed if the component is removed.

51. If necessary, remove bearing cone (61) from housing (41).

52. Remove bearing cups (62) and (64) from brake housing (42).
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    NOTICE
    The component will be destroyed if the component is removed.

53. If necessary, remove bearing cone (65) from housing (41).

54. Remove O-ring seal (63) from brake housing (42).