525B and 535B Wheel Skidders Power Train Caterpillar

Assembly Procedure

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned 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 which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

Note: Apply oil to the bearings before assembly.

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Illustration 1	g00590846

1. Lower the temperature of bearing (37) and install bearing (37) in housing (24). If necessary, use a suitable press to install bearing (37) in housing (24).
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   Illustration 2	g00590089

2. Install seal ring (36) in housing (24).
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   Illustration 3	g00590088

3. Install seal ring (35) to piston (34).
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   Illustration 4	g00590896

4. Install piston (34) in housing (24).
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   Illustration 5	g00590085

5. Install friction disc (33) in housing (24).
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   Illustration 6	g00590916

6. Install plate (32) in housing (24).
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   Illustration 7	g00590083

7. Install bolts (31). Tighten bolts (31) to a torque of 60 ± 7 N·m (44 ± 5 lb ft).
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   Illustration 8	g00590079

8. Install turbine (30) on turbine hub (28).

9. Install bolts (29). Tighten bolts (29) to a torque of 60 ± 7 N·m (44 ± 5 lb ft).
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   Illustration 9	g00590954

10. Place turbine hub (28) on suitable blocking.
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    Illustration 10	g00590960

11. Use Tooling (C) and a suitable lifting device to install housing (24) to turbine hub (28). The weight of housing (24) is approximately 45 kg (100 lb).
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    Illustration 11	g00590074

12. Install spacer (27) and retaining ring (26) on turbine hub (28).
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    Illustration 12	g00590073

13. Install O-ring seal (25) on cover (23).
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    Illustration 13	g00590980

14. Install cover (23) on housing (24).

15. Install bolts (22).
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    Illustration 14	g00590983

16. Use a soft faced hammer to install bearing (21) in impeller (7).
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    Illustration 15	g00590066

17. Install gear (20) on impeller (7).

18. Install bolts (19). Tighten bolts (19) to a torque of 105 ± 15 N·m (75 ± 11 lb ft).
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    Illustration 16	g00590988

19. Lower the temperature of carrier assembly (9) and install carrier assembly (9) in impeller (7). If necessary, use a suitable press to install carrier assembly (9) in impeller (7).
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    Illustration 17	g00590062

20. Install plate (18) on impeller (7).
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    Illustration 18	g00590059

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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.

21. Install cam (17), springs (16), rollers (15), and bearing race (14) in stator (11).

    Note: Install springs (16) with the maximum number of loops toward the outside diameter of cam (17).

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    Illustration 19	g00590058

22. Install washer (13) and retaining ring (12) on stator (11). Repeat the procedure for the opposite side of stator (11).
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    Illustration 20	g00590057

23. Install stator (11) on impeller (7).

24. Install plate (10) and retaining ring (8) on carrier assembly (9).
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    Illustration 21	g00590054

25. Turn impeller (7) to the opposite side.

26. Use Tooling (C) and a suitable lifting device to install impeller (7) to the housing. The weight of the impeller is approximately 28 kg (62 lb).

27. Install bolts (6). Tighten bolts (6) to a torque of 60 ± 7 N·m (44 ± 5 lb ft).
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    Illustration 22	g00591128

28. Use a suitable hammer and a driver to install bearing (5) in cover (2).
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    Illustration 23	g01272398

29. Turn cover (2) to the opposite side. The weight of cover (2) is approximately 125 kg (275 lb).

30. Use Tooling (C) to install bearings (3), (4), and (5) in cover (2).
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    Illustration 24	g00590050

31. Use Tooling (A) and a suitable lifting device to install cover (2) on the torque converter. The weight of cover (2) is approximately 125 kg (275 lb).

32. Install bolts (1). Tighten bolts (1) to a torque of 55 ± 10 N·m (41 ± 7 lb ft).

End By:

1. Connect the torque converter to the transmission. Refer to Disassembly and Assembly, "Torque Converter to Transmission - Connect" for the machine that is being serviced.