279C2 Compact Track Loader and 287C, 277C, 277C2 and 297C Multi Terrain Loaders Power Train Caterpillar

Assembly Procedure

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Illustration 1	g01345147

1. Install bearing assemblies (58) and bearing race (59).
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   Illustration 2	g01372284

2. Install bearing race (57).

   Note: Refer to Special Instructions, SEHS8364-03 for Dou-Cone seal installation information.

3. Use Tooling (M) in order to install Dou-Cone seal (56).
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   Illustration 3	g01372286

4. Use Tooling (M) in order to install Dou-Cone seal (55).
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   Illustration 4	g01893456

5. Use Tooling (N) and a suitable press in order to install housing (53) onto spindle (54).
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   Illustration 5	g01893458

6. Use Tooling (N), Tooling (H), and a suitable press in order to position bearing race (59).
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   Illustration 6	g01345141

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   Illustration 7	g01345140

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   Illustration 8	g01345143

7. Install nut (52).

8. Install spindle (54) and housing (53) onto Tooling (F). Install Tooling (F) onto the bottom half of Tooling (G).

9. Install Tooling (H) and Tooling (J).

10. Install the remaining pieces of Tooling (G).

11. Tighten nut (52) to a torque of 3900 ± 100 N·m (2876 ± 74 lb ft).

12. Stake nut (52).
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    Illustration 9	g01345138

13. Install gears (51).

14. Use Tooling (D) in order to install retaining rings (50).
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    Illustration 10	g01345136

15. Install gear (49).

16. Use Tooling (E) in order to install retaining ring (48).
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    Illustration 11	g01345135

17. Install gears (45) and gear (47).

18. Use Tooling (D) in order to install retaining rings (46).
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    Illustration 12	g01345133

19. Install O-ring seal (43) and carrier assembly (44).
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    Illustration 13	g01345132

20. Install cover (41).

21. Install the O-ring seals and plugs (42).

22. Use Tooling (B) in order to install retaining ring (40).
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    Illustration 14	g01345131

23. Install balls (37), bearing (38), and springs (39).
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    Illustration 15	g01374432

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

24. Install pistons (36), bearing race (36A), and shaft (35).
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    Illustration 16	g01345129

25. Install swashplate (34).
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    Illustration 17	g01345124

26. Install washers (26) and spring (27) into barrel (22).
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    Illustration 18	g01345123

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

27. Use Tooling (A) and a suitable press in order to install retaining ring (25) into barrel (22).
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    Illustration 19	g01345120

28. Install pins (24).
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    Illustration 20	g01346094

29. Install bearing (33), retainer (31), and pistons (32).
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    Illustration 21	g01346095

30. Install barrel (22).
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    Illustration 22	g01346097

    Note: Align the grooves on the discs (29).

31. Install discs (29) and plates (30).
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    Illustration 23	g01346231

32. Install the O-ring seal and piston (28).
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    Illustration 24	g01374430

33. Install the O-ring seals from piston (21).

34. Install piston (21), barrel (22), O-ring seal (23), springs (20), bearing race (23A), and springs (19).
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    Illustration 25	g01345116

35. Install lip seal (18).
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    Illustration 26	g01374429

    Note: Do not move nut (14A) preset from supplier.

36. Install valve (14G), retainer (14E), O-ring seal (14D), spring (14F), O-ring seal (14C), and plug (14B).
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    Illustration 27	g01345114

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

37. Install spring (14), the O-ring seal, and plug (13).

38. Install spool (15), spring (16), plug (17), and the O-ring seal.
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    Illustration 28	g01345113

39. Install O-ring seal (12) onto plug (9).

40. Install piston (10) and spring (11).
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    Illustration 29	g01345112

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

41. Install plug (9).

42. Repeat Step 41 for the opposite side.
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    Illustration 30	g01345111

43. Install bearing (8), port plate (7), and O-ring seals (6).
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    Illustration 31	g01345109

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

44. Install head (5) and bolts (4).
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    Illustration 32	g01344080

45. Install O-ring seal (3).
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    Illustration 33	g01344079

46. Install cover (2) and bolts (1).

End By:

1. Install the piston motor.