D5M Track-Type TractorPower Train Caterpillar

Disassembly Procedure

Start By:

1. Separate the transmission and the bevel gears. Refer to Disassembly and Assembly, "Transmission and Bevel Gears - Separate" for the machine that is being serviced.
2. Remove the transmission hydraulic control valves. Refer to Disassembly and Assembly, "Transmission Hydraulic Control Valve - Remove" for the machine that is being serviced.

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Illustration 1	g00560865

1. Put the transmission into position on Tooling (A), as shown. Remove two magnetic sensors (not shown) from the bevel gear case.

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Illustration 2	g00560866

2. Fasten a hoist and two 8 mm forged eyebolts to housing assembly (1). Support the weight of the housing assembly and remove snap ring (2) by using Tooling (B) .

3. Remove the six bolts and manifold assembly (3) from the planetary group.

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Illustration 3	g00560868

4. Remove ring (4) and bearing (5) from the manifold assembly.

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Illustration 4	g00560869

5. Remove housing assembly (6). Remove the piston from the housing assembly. Remove the rings from the piston.

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Illustration 5	g00560870

6. Remove two rings (7) from the carrier.

7. Remove three plates (8) and three discs (9) .

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Illustration 6	g00560871

8. Remove gear (10) from the planetary group.

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Illustration 7	g00560872

9. Compress ring (2) by using Tooling (C) .

10. Remove housing assembly (2) and coupling (11) as an assembly.

11. Remove pin (13) and ring (12) from housing assembly (2) .

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Illustration 8	g00560874

12. Use a press and Tooling (D) in order to compress the spring in housing assembly (2). Use Tooling (B) and remove snap ring (14). Slowly release the spring tension by using the press.

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Illustration 9	g00560878

13. Remove spacer (15), spring (16), and piston (17) from the housing assembly.

14. Remove the rings from piston (17) .

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Illustration 10	g00560881

15. Remove coupling (11) from housing assembly (2) .

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Illustration 11	g00678088

16. If necessary, remove pin (18) from housing assembly (2) .

17. If necessary, remove dowel (19) from housing assembly (2) .

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Illustration 12	g00560882

18. Remove five discs (21) and four plates (20) from gear (10) .

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Illustration 13	g00560904

19. Remove the ring and plate (22) from gear (10) .

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Illustration 14	g00560906

20. Remove plate (23) .

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Illustration 15	g00560907

21. Remove three springs (24) from the rods.

22. Remove four discs (25) and four plates (26) .

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Illustration 16	g00560910

23. Remove shaft assembly (27) and the carrier as an assembly.

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Illustration 17	g00560913

24. Use Tooling (B) and remove snap ring (28). Remove gear (29) and the spacer from the shaft assembly.

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Illustration 18	g00560916

25. Remove pin (21) from the gear by using a hammer and a punch.

26. Remove plate (30) .

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Illustration 19	g00560917

27. Remove snap ring (32) from the shaft assembly by using Tooling (B). Remove hub (33) from shaft assembly (27) .

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Illustration 20	g00560919

28. Remove shaft assembly (27) and gear (34) from the carrier.

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Illustration 21	g00560921

29. If necessary, remove bearings (35) from each end of shaft (27) .

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Illustration 22	g00560926

30. Remove bearing (36) from carrier (37) .

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Illustration 23	g00560928

31. Use ten 3.175 mm (0.1250 inch) roll pins (38) in order to compress the ring that holds carrier (37) in position in gear (39). Separate the carrier from the gear. Remove the ring from the carrier.

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Illustration 24	g00560932

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Illustration 25	g00560938

32. Push pin (40) in the shaft (42) by using a hammer and a punch. Remove the shaft from the carrier.

33. Remove gear (41). Remove discs (43) and (45) from the carrier. Remove bearing (44) from the gear.

34. Remove pin (40) from shaft (42) .

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Illustration 26	g00560941

35. Remove housing assembly (46). Remove pistons (47) from each side of the housing assembly.

36. Remove the rings from the pistons.

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Illustration 27	g00560964

37. Remove five plates (48) and five discs (49) .

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Illustration 28	g00560968

38. Remove gear (50) and plate (51) .

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Illustration 29	g00560982

39. Remove springs (53) and rods (52) .

40. Remove five discs (54) and five plates (55) .

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Illustration 30	g00561006

41. Remove shaft (56), carrier assembly (57), and gear (58) as an assembly.

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Illustration 31	g00561008

42. Remove plate (59) from gear (58) .

43. Remove the shaft and gear assembly (60) from the carrier.

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Illustration 32	g00561009

44. Remove snap ring (61) from gear assembly (60) by using Tooling (B) .

45. Remove gear (62) and bearing (63) from the gear assembly.

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Illustration 33	g00561012

46. Remove dowel (64) that holds gear assembly (60) to shaft (56). Remove the gear assembly from the shaft.

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Illustration 34	g00561014

47. Use ten 3.175 mm (0.1250 inch) roll pins (65) in order to compress the ring that holds carrier (57) in position in gear (58). Separate the carrier and the gear.

48. Remove the ring from the carrier.

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Illustration 35	g00561016

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Illustration 36	g00561018

49. Push pins (67) in the shafts (66) by using a hammer and a punch.

50. Remove shafts (66) and gears (68). Remove discs (69) and (71) from carrier (57) .

51. Remove pin (67) from the shaft.

52. Remove bearing (70) from gear (68) .

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Illustration 37	g00561020

53. Remove gear (72) .

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Illustration 38	g00561021

54. Remove housing (73) from the cover assembly.

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Illustration 39	g00561029

55. Remove snap ring (75) from the housing by using Tooling (E) .

56. Remove shaft (76) and bearing (74) from the housing as an assembly.

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Illustration 40	g00561032

57. Remove ring (77) from shaft (76) .

58. Remove snap ring (78) from the shaft by using Tooling (B). Remove bearing (74) .

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Illustration 41	g00561036

59. Remove snap ring (79) by using Tooling (B) .

60. Remove carrier assembly (80) from the housing.

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Illustration 42	g00561037

61. Remove ring (81) from carrier assembly (80) .

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Illustration 43	g00561038

62. If necessary, remove bearing (82) from carrier assembly (80) .

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Illustration 44	g00561153

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Illustration 45	g00561154

63. Push the pins in shafts (83) by using a hammer and a punch. Remove the shafts from carrier assembly (84). Remove the pins from the shaft.

64. Remove discs (87) and (88) from the carrier assembly.

65. Remove bearings (86) and (89) from gears (85) .

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Illustration 46	g00561156

66. Remove piston (91) from housing (73). Remove the rings from the piston.

67. Remove snap ring (90) from housing (73) by using Tooling (E) .

68. Remove bearing (92) from the housing.