D6N Track-Type Tractor Power Train Bevel and Transfer Gears - Disassemble Caterpillar

Disassembly Procedure

Start By:

1. Separate the transmission and bevel gears. Refer to Disassembly and Assembly, "Transmission and Bevel Gears - Separate".

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Illustration 1	g00959670

1. Mount bevel and transfer gears (1) onto Tooling (A).
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   Illustration 2	g00954579

2. Remove bracket assemblies (2).
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   Illustration 3	g00954580

3. Remove O-ring seals (4).

4. If necessary, remove pins (3).
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   Illustration 4	g01228572

5. Disconnect harness assemblies (7), sensors (5), and bracket (6).
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   Illustration 5	g00954584

6. Remove bolts (8). Use two bolts (8) in order to remove cage (9).

7. Remove shims (10).
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   Illustration 6	g00994151

8. Remove O-ring seal (12), seal (11), bearing (14), and bearing cup (13) from cage (9).
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   Illustration 7	g00994324

9. Remove bolts (15), cover (16), and shims (17).
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   Illustration 8	g00954587

10. Remove bolts (18). Use two bolts (18) in order to remove cover (19). Tighten bolts (18) evenly and remove cover (19).
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    Illustration 9	g00994154

11. If necessary, remove dowels (20) and bearing cup (21) from cover (19).
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    Illustration 10	g00954590

    Note: Gears (22) and (23) must be removed from the case assembly at the same time.

12. Remove gear (22) and gear (23) from the case assembly.
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    Illustration 11	g00954593

    Note: Bearing cones (24) must be destroyed in order to remove the cones from the gear.

13. Remove bearing cones (24) from gear (22).
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    Illustration 12	g00994158

14. Remove bolt (25) and retainer (26) from gear (23).
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    Illustration 13	g00954591

15. Use Tooling (B) and a suitable press in order to remove bearing cone (27) from gear (28).
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    Illustration 14	g00994331

16. Use a suitable press in order to remove bearing cone (29) from gear (28) and from gear (23).
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    Illustration 15	g00954857

17. Remove bearing cups (30) from case (31).
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    Illustration 16	g00994147

18. Bend the tab on lock ring (33) away from nut (32).

    Note: Use a new lock ring (33) during assembly.

19. Use Tooling (C) in order to remove nut (32).

20. Remove washer (34) and bearing cone (34A).
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    Illustration 17	g01233575

21. Attach a suitable lifting device to shaft assembly (35). The weight of shaft assembly (35) is approximately 39 kg (86 lb).

22. Remove shaft assembly (35).
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    Illustration 18	g00954861

23. Remove bolts (36) and gear (37).
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    Illustration 19	g00954863

24. Remove the race and roller bearing (38) from shaft assembly (35).
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    Illustration 20	g00994148

25. Remove bolts (39), cage (40), and shims (41).
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    Illustration 21	g00994149

26. Remove bearing cone (46), bearing cups (45) and (42), and carrier (44).

27. Remove rings (43) from carrier (44).
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    Illustration 22	g00994563

28. Remove bearing cup (47) from case (31).
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    Illustration 23	g00994564

29. Remove tube assemblies (49). Remove fittings (48), if necessary.