D6 Track-Type Tractor Machine Systems Caterpillar

Assembly Procedure

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Illustration 1	g06349737

1. Install plugs (115) and the O-ring seals. Install plug (114) and the O-ring seal into housing (111).
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   Illustration 2	g06349732

2. Install plugs (113) and the O-ring seals. Install plug (112) and the O-ring seal into housing (111).
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   Illustration 3	g06351811

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   Illustration 4	g06349727

   Note: Use a suitable punch to install inner sleeve (110A), outer sleeve (110B), and filter (110C).

3. Install filter assemblies (110).
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   Illustration 5	g06350293

4. Use Tooling (D) and a suitable press to install bearing (109) onto shaft assembly (107).
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   Illustration 6	g06349649

5. Install retaining ring (108) onto shaft assembly (107).
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   Illustration 7	g06349645

6. Rotate the piston pump housing to a horizontal position. Install shaft assembly (107) and retaining ring (106).
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   Illustration 8	g06349433

7. Return the piston pump housing to a vertical position. Install bearing races (105).
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   Illustration 9	g06349431

   Note: Ensure that pins on the roller bearings are located into the holes in the pump case.

8. Install roller bearings (104).
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   Illustration 10	g06349633

9. Install slide block (103) and seals (102) into servo piston (101).
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   Illustration 11	g06349427

10. Install servo piston (101) onto swashplate (100).
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    Illustration 12	g06349416

11. Install servo piston (101) and swashplate (100) as a unit into the pump housing.
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    Illustration 13	g06349412

12. Install O-ring seal (99) onto servo can (96). Repeat for the opposite side.
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    Illustration 14	g06349399

13. Install servo can (96) into the piston pump housing to the length determined in the disassembly. install locking plate (98) and bolts (97). Repeat for the opposite side.
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    Illustration 15	g06349363

14. Place washer (93), spring (94), and washer (95) into barrel (91).
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    Illustration 16	g06349359

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    Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

15. Use Tooling (C) and a suitable press to install retaining ring (92) into barrel (91).
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    Illustration 17	g06349355

16. Install spring (90) onto barrel (91).
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    Illustration 18	g06349346

17. Install bearing (89).
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    Illustration 19	g06349339

18. Install retainer (88) and pistons (87).
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    Illustration 20	g06349308

19. Rotate the piston pump housing to a horizontal position. Install rotating group (86).
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    Illustration 21	g06349304

20. Install pins (85) and gasket (84).
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    Illustration 22	g06349273

21. Install bearings (83) and (82) into the head assembly.
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    Illustration 23	g06349267

22. Install orifice (81). Apply Tooling (F) to control plate (80). Install control plate (80).
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    Illustration 24	g06349257

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    Illustration 25	g06349253

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    Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

23. Attach Tooling (B) and a suitable lifting device to head assembly (79). Install head assembly (79). The weight of head assembly (79) is approximately 25 kg (55 lb).

24. Install bolts (78).
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    Illustration 26	g06349250

25. Install ring (77).
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    Illustration 27	g06349244

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    Illustration 28	g06349241

    Note: Control plate (75) is marked with an (L).

26. Install O-ring seal (76) into control plate (75).

27. Install control plate (75) with O-ring seal (76) facing down.
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    Illustration 29	g06349232

28. Install outer bearing shell (74) and inner bearing shell (73).
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    Illustration 30	g06349221

29. Install roller casing (72) and rollers (71).
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    Illustration 31	g06349211

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    Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

30. Install guide (62), spring (63), spring (64), guide (65) into control (58). Install O-ring seal (66) onto cap (67). Install cap (67) into control (58). Install O-ring seal (68) onto adjustment screw (69). Install seal nut (70) onto adjustment screw (69) at the length determined in the disassembly. Install adjustment screw (69) into control (58).
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    Illustration 32	g06349200

31. Install spool (61) into control (58). Install O-ring seal (60) onto plug (59). Install plug (59) into control (58).
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    Illustration 33	g06349195

32. Install control (58), the gasket, and bolts (57).
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    Illustration 34	g06349166

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    Illustration 35	g06349158

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    Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

33. Place piston (56), spring (55), and spring (54) into the head assembly.

34. Install O-ring seal (53) onto relief valve (48). Install adjustment screw (51) into relief valve (48) at the length determined in the disassembly. Install seal nut (52) onto adjustment screw (51). Install relief valve (48) into the head.

35. Install bracket (50) and bolts (49).
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    Illustration 36	g06349154

36. Install plug (47) and the O-ring seal.

37. Install plug (46) and the O-ring seal.
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    Illustration 37	g06349151

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    Illustration 38	g06349064

38. Install O-ring seals (44) and (45) onto relief valves (43). Install relief valves (43).
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    Illustration 39	g06349029

39. Install plug (34) and the O-ring seal.
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    Illustration 40	g06348560

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    Illustration 41	g06348553

    Note: Control plate (28) is marked with an (R).

40. Install O-ring seal (29) into control plate (28).

41. Install control plate (28) with O-ring seal (29) facing up into the head assembly.
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    Illustration 42	g06348509

42. Install ring (27), coupling (26), pins (25), and gasket (24).
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    Illustration 43	g06348503

43. Install plate (23) and bearing (22) into adapter assembly (20).
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    Illustration 44	g06348498

44. Install plug (21) and the O-ring seal into adapter assembly (20).
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    Illustration 45	g06350863

45. Install adapter assembly (20) onto the head assembly. Install bolts (19) and (18).
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    Illustration 46	g06349037

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    Illustration 47	g06349034

46. Place piston (37) into the head assembly.

    Install O-ring seal (36) onto plug (35). Install plug (35) into the head assembly.

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    Illustration 48	g06349023

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    Illustration 49	g06349011

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    Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

47. Place piston (33) and spring (32) into the head assembly.

48. Install O-ring seal (31) onto plug (30). Install plug (30) into the head assembly.
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    Illustration 50	g06348630

49. Install O-ring seal (13) onto cartridge (14). Install solenoid (15) onto cartridge (14). Install O-ring seal (16) into cap (17). Install cap (17).

50. Repeat for the opposite side.
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    Illustration 51	g06348614

51. Install solenoid assembly (12) and bolts (11) onto valve group (6). Repeat for the opposite side.
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    Illustration 52	g06348600

52. Install plug (10) and the O-ring seal. Install seal nut (9).
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    Illustration 53	g06348576

53. Install feedback lever (8) and gasket (7).
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    Illustration 54	g06348574

54. Install valve group (6) and bolts (5).
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    Illustration 55	g06348439

55. Install O-ring seal (4) and lip seal (3) into seal carrier (1).
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    Illustration 56	g06348457

56. Use a suitable lifting device to remove the piston pump from Tooling (A) or suitable fixture. The weight of the piston pump is approximately 65 kg (143 lb).
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    Illustration 57	g06348434

57. Orient the piston pump with the shaft facing upward.

58. Install seal carrier (1) and retaining ring (2).

End By:

1. Install the piston pump.