950G and 962G Wheel Loaders and IT62G Integrated Toolcarrier Power Train Transmission Planetary - Assemble Caterpillar

Assembly Procedure

Note: Cleanliness is an important factor. Before assembly, clean all parts thoroughly in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts causing later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. During assembly, put clean transmission oil on all internal parts.

Show/hide table



Illustration 1	g00340875

1. Raise the temperature of bearing (122) and install bearing (122) on input shaft (118) , as shown.

2. Apply clean transmission oil to seals (120) and to seal ring (121) . Install seals (120) and seal ring (121) on input shaft (118) .

Show/hide table



Illustration 2	g00327703

3. Install dowels (119) in housing (117) . The dowels must protrude from the housing by 10.5 ± 0.5 mm (0.41 ± 0.02 inch).

4. Carefully install input shaft (118) in housing (117) .

Show/hide table



Illustration 3	g00325045

5. Install retaining ring (116) in order to hold the input shaft and the bearing in place in housing (117) .

Show/hide table



Illustration 4	g00325046

6. Install seal rings (114) and (115) on clutch piston (111) .

Show/hide table



Illustration 5	g01174770

7. Install sun gear (113) , clutch piston (111) , coupling gear (110) , and reaction dowels (112) .

   Note: Make sure that the lips of the seals on clutch piston (111) are facing downward.

Show/hide table



Illustration 6	g01293746

Show/hide table



Illustration 7	g00325012

8. Install bearings (107) in planetary gears (106) . Install the gear assemblies, thrust disc (105) , thrust disc (108) , and planetary shafts (104) in carrier assembly (101) .

9. Use a suitable hammer and a punch to install spring pins (109) that hold planetary shafts (104) in carrier assembly (101) . Make sure that the spring pins are flush with the counterbore in the carrier.

Show/hide table



Illustration 8	g00325010

10. Install seal rings (103) on carrier assembly (101) .

Show/hide table



Illustration 9	g00325009

11. Install seal ring (102) on ring carrier (100) .

Show/hide table



Illustration 10	g00325005

12. Install ring carrier (100) in carrier assembly (101) .

13. Install carrier assembly (101) . Align the sun gear on the input shaft with ring carrier (101) .

Show/hide table



Illustration 11	g00327872

Note: The dowels have been removed for photographic purposes.

14. Install one clutch plate (99) in the housing. Align the small hole in the clutch plate is aligned with the small hole in the housing, as shown.

Show/hide table



Illustration 12	g00325004

15. Install friction discs (98) and clutch plates (99) in alternating order. Start with a friction disc.

Show/hide table



Illustration 13	g00324979

16. Raise the temperature of bearing (95) and install bearing (95) on sun gear (96) , as shown. Make sure that the groove in bearing (95) is facing upward.

Show/hide table



Illustration 14	g00324981

17. Install retaining ring (94) in carrier assembly (85) .

Show/hide table



Illustration 15	g00328188

18. Use Tooling (E) to expand retaining ring (94) . Use Tooling (C) and a suitable press to install bearing (95) and sun gear (96) as a unit. Make sure that retaining ring (94) is installed in the groove in bearing (95) .

Show/hide table



Illustration 16	g00324967

Show/hide table



Illustration 17	g00324965

19. Install bearings (93) in planetary gears (92) . Install the gear assemblies, thrust discs (91) , and planetary shafts (89) in carrier assembly (85) .

20. Use a suitable hammer and a punch to install spring pins (90) that hold planetary shafts (89) in carrier assembly (85) . Make sure that the spring pins are flush with the counterbore in the carrier.

Show/hide table



Illustration 18	g00324964

Show/hide table



Illustration 19	g00328226

21. Install retaining ring (88) on carrier assembly (85) .

22. Use steel rods (86) to compress retaining ring (88) . Install carrier assembly (85) in ring gear (87) until the retaining ring fits into the groove in the ring gear.

Show/hide table



Illustration 20	g00328227

23. Install plastic thrust disc (123) that is used between the reverse planetary carrier and the forward planetary carrier.

Show/hide table



Illustration 21	g01174811

24. Install carrier assembly (85) and ring gear (87) as a unit.

Show/hide table



Illustration 22	g00328234

25. Install the O-ring seal, plate (97) , springs (83) , and spring rods (76) .

Show/hide table



Illustration 23	g00328291

26. Use Tooling (E) to install retaining ring (82) on the input shaft.

Show/hide table



Illustration 24	g00328292

27. Install ring gear (84) .

Show/hide table



Illustration 25	g03076863

28. Install friction discs (79) and clutch plates (80) in alternating order. Start with a friction disc. Make sure that the top clutch plate is installed so that the small holes are over the spring rods, as shown.

Show/hide table



Illustration 26	g03070638

29. Install seal rings (78) and (77) on clutch piston (76) .

30. Install clutch piston (77) . Make sure that the lips of the seals are facing downward (toward the clutch housing).

Show/hide table



Illustration 27	g01174715

31. Install the O-ring seal in housing (75) . Use Tooling (A) and a suitable lifting device to install housing (75) , as shown. The weight of housing (75) is approximately 29 kg (64 lb).

Show/hide table



Illustration 28	g00324905

32. If bearings (74) were removed, lower the temperature of the two bearings. Then, put the bearings in position in both ends of output shaft (70) .

Show/hide table



Illustration 29	g03076920

33. Use Tooling (H) to install bearings (74) to a depth of 12.0 ± 0.5 mm (0.47 ± 0.02 inch). After assembly, the inside diameter of bearings (74) must be 34.988 ± 0.039 mm (1.3770 ± 0.0020 inch).

Show/hide table



Illustration 30	g00328423

Note: Make sure that the locating dowel fits into the notch in the bearing. Also, the groove in the bearing must face the top of the output shaft.

34. Raise the temperature of bearing (73) and install bearing (73) on output shaft (70) , as shown.

Show/hide table



Illustration 31	g00324903

35. Install sun gear (71) on output shaft (70) .

36. Use Tooling (E) to install retaining ring (72) .

Show/hide table



Illustration 32	g00324893

37. Install output shaft (70) over the input shaft.

Show/hide table



Illustration 33	g00324892

38. Install retaining ring (69) that holds output shaft (70) to the input shaft.

Show/hide table



Illustration 34	g00324891

Show/hide table



Illustration 35	g03070436

39. Install bearings (67) in planetary gears (66) . Install the gear assemblies, thrust discs (65) , and planetary shafts (64) in carrier assembly (57) .

40. Use a suitable hammer and a punch to install spring pins (68) that hold planetary shafts (64) in carrier assembly (57) . Make sure that the spring pins are flush with the counterbore in the carrier.

Show/hide table



Illustration 36	g03070356

41. Install retaining ring (63) on carrier assembly (57) .

Show/hide table



Illustration 37	g03070259

42. Install seal ring (62) onto carrier assembly (57) . Set carrier assembly (57) into ring gear 61.

43. Use steel rods (60) to compress the retaining ring. Install carrier assembly (57) in ring gear (61) until the retaining ring fits into the groove in the ring gear.

Show/hide table



Illustration 38	g03067205

44. Install carrier assembly (57) . Make sure that all of the gear teeth are correctly engaged.

45. Install reaction dowels (58) and springs (59) .

Show/hide table



Illustration 39	g03067176

46. Install friction discs (56) and clutch plates (55) in alternating order. Start with a friction disc. Make sure that the top clutch plate is installed so that the small holes are over the spring rods, as shown.

Show/hide table



Illustration 40	g03067134

47. Install seal rings (53) and seal ring (54) on clutch piston (52) . Install clutch piston (52) into housing (51) . Make sure that the lips of the seals are facing downward (toward the housing).

Show/hide table



Illustration 41	g03067003

48. Install the O-ring seal in housing (51) . Use Tooling (A) and a suitable lifting device to install housing (51) , as shown. The weight of housing (51) is approximately 29 kg (64 lb).

Show/hide table



Illustration 42	g03066952

49. Install reaction plate (50) and install retaining ring (49) .

Show/hide table



Illustration 43	g03066942

50. Install ring gear (34) .

Show/hide table



Illustration 44	g03066937

51. Install friction discs (47) and clutch plates (48) in alternating order. Start with a friction disc.

Show/hide table



Illustration 45	g03651532

52. Install sun gear (45) .

Show/hide table



Illustration 46	g00324828

53. Install retaining ring (44) on the output shaft.

Show/hide table



Illustration 47	g00339654

54. Install seal ring (43) and seal ring (42) on piston (41) .

Show/hide table



Illustration 48	g03066717

55. Install piston (41) and seal rings (40) on the clutch housing.

Show/hide table



Illustration 49	g00324826

56. Install clutch housing (35) on sun gear shaft (39) .

57. Stack disc springs (38) and install the disc springs in clutch housing (35) . Make sure that the outside edge of the disc springs contact each other first.

58. Install retainer plate (36) on the gear shaft.

Show/hide table



Illustration 50	g00324825

59. Use steel spacers and a suitable press to compress retainer plate (36) and the disc springs. Install retaining ring (37) in the clutch housing.

Show/hide table



Illustration 51	g00324824

60. Install retaining ring (33) on clutch housing (35) .

Show/hide table



Illustration 52	g00324823

61. Install clutch housing (35) in ring gear (34) . Use Tooling (C) to install retaining ring (33) .

Show/hide table



Illustration 53	g03078059

Note: The dowels have been removed for photographic purposes.

62. Install one clutch plate (32) in the housing. Align the small hole in the clutch plate so that it is aligned with the small hole in the housing, as shown.

Show/hide table



Illustration 54	g03651539

63. Install friction discs (31) and clutch plates (32) in alternating order. Start with a friction disc. Install springs (46) .

Show/hide table



Illustration 55	g00339593

64. Lower the temperature of bearing (29) . Install bearing (29) in housing (28) . Install retaining ring (30) .

Show/hide table



Illustration 56	g01174668

65. Use Tooling (A) and a suitable lifting device to install housing (28) , as shown. The weight of housing (28) is approximately 29 kg (64 lb).

Show/hide table



Illustration 57	g00324767

66. Use two screwdrivers to lift clutch housing (35) .

Show/hide table



Illustration 58	g01174667

67. Use Tooling (E) to install retaining ring (27) on the output shaft.

Show/hide table



Illustration 59	g01174666

68. Use Tooling (D) to install retaining ring (26) on the output shaft.

Show/hide table



Illustration 60	g03066621

Show/hide table



Illustration 61	g03066604

69. Install bearings (24) in planetary gears (25) . Install the gear assemblies, thrust discs (23) , and planetary shafts (22) in carrier assembly (20) .

70. Use a suitable hammer and a punch to install the spring pins that hold planetary shafts (22) in carrier assembly (20) . Make sure that the spring pins are flush with the counterbore in the carrier.

Show/hide table



Illustration 62	g03063218

71. Install metal seal ring (21) in the carrier assembly.

Show/hide table



Illustration 63	g03063116

72. Install carrier assembly (20) .

Show/hide table



Illustration 64	g03063156

73. Install ring gear (18) and O-ring seal (19) .

Show/hide table



Illustration 65	g03078247

74. Install reaction dowels (15) and springs (14) .

Show/hide table



Illustration 66	g03078277

Show/hide table



Illustration 67	g03078253

75. Install clutch plates (17) and friction discs (16) in alternating order. Start with a clutch plate. Make sure that the top clutch plate (13) is installed so that the small holes are over the spring rods, as shown.

Show/hide table



Illustration 68	g00324691

76. Install seal rings (11) and (12) on clutch piston (10) .

77. Install clutch piston (10) in No. 6 clutch housing (6) .

Show/hide table



Illustration 69	g00324690

78. Install No. 6 clutch housing (6) and bolts (9) . Tighten bolts (9) to a torque of 120 ± 20 N·m (88 ± 15 lb ft).

Show/hide table



Illustration 70	g01174663

79. Use Tooling (C) to install retaining ring (8) on output shaft (7) .

Show/hide table



Illustration 71	g03080179

80. Remove the valve assemblies and apply 690 to 1030 kPa (100 to 150 psi) of shop air pressure into each oil passage (129) (total of six).

    If the clutch pistons do not move, apply a small amount of clean transmission oil in each oil passage and check for movement again. If the clutch pistons do not move, the transmission must be disassembled again so that the clutch pistons and the seal rings can be checked.

Show/hide table



Illustration 72	g00324687

81. Use Tooling (A) and a suitable lifting device to reposition the transmission, as shown.

Show/hide table



Illustration 73	g00324683

82. Install drive gear (4) on the end of the input shaft, as shown.

83. Install retainer (2) and bolt (3) . Tighten bolt (3) to a torque of 120 ± 20 N·m (88 ± 15 lb ft).

84. Apply clean transmission oil on O-ring seals (1) and (5) . Install O-ring seals (1) and (5) on the housing.

End By: Install the transmission.