926M, 930M and 938M Wheel Loaders Power Train Caterpillar

Disassembly Procedure

Start By:

1. Remove the rear hydrostatic piston motor.

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Illustration 1	g02794487

1. Remove plug (1) and the O-ring seal.
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   Illustration 2	g02803836

2. Remove plug (2) and the O-ring seal. Remove plug (3) and the O-ring seal. Remove plug (5) and the O-ring seal.

3. Remove valve (4).
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   Illustration 3	g02794571

4. Remove O-ring seal (6) from valve (4).
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   Illustration 4	g02794574

5. Remove O-ring seal (7). Remove bolt (8).
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   Illustration 5	g02794577

6. Remove piston (9).
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   Illustration 6	g02794580

7. Remove Alan pin (10) (not shown).
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   Illustration 7	g02794585

8. Remove nut (11).
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   Illustration 8	g02796371

9. Remove plunger (12).
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   Illustration 9	g02796377

10. Use a suitable magnet in order to remove valve (13).
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    Illustration 10	g02796381

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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.

11. Remove bolts (14) and remove valve (15).
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    Illustration 11	g02796392

12. Remove O-ring seal (16), spring (17), dowel (18), bushing (19), and retainer (20).
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    Illustration 12	g02796417

13. Remove lock (21).
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    Illustration 13	g02796448

14. Measure and record Dimension (X). Remove nut (22).
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    Illustration 14	g02796495

15. Remove spring (23).
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    Illustration 15	g02796525

16. Remove O-ring seals (24). Remove spring (25).
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    Illustration 16	g02796531

17. Remove bolts (26) in order to remove pump head (27).
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    Illustration 17	g02796538

18. Remove trunnion (28) and remove piston (29).
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    Illustration 18	g02796543

19. Remove swashplate (30).
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    Illustration 19	g02796549

20. Remove cap (31).
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    Illustration 20	g02796553

21. Measure and record Dimension (Y). Remove nut (32).
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    Illustration 21	g02796571

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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.

22. Remove O-ring seal (33) and barrel (34).
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    Illustration 22	g02796573

23. Remove spring (35) and shim (36) from barrel (34).
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    Illustration 23	g02796581

24. Use a suitable press in order to remove shaft assembly (38) from housing (37).

    Note: Be sure to avoid letting the rotating group catch in the housing or hit the floor.

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    Illustration 24	g02796607

25. Remove retaining ring (39), washer (40), and lip seal (41).
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    Illustration 25	g02796608

26. Remove bolts (42). Separate piston assembly (43) from shaft assembly (38).