365B, 365B Series II, 365BL and 365BL Series II Excavators Machine Systems Caterpillar

Disassembly Procedure

Start By:

1. Remove the final drive. Refer to Disassembly and Assembly, "Final Drive - Remove" in this manual.

1. Thoroughly clean the outside of the final drive prior to disassembly.

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Illustration 1	g00595985

2. Fasten the final drive to Tooling (A), as shown. Put an alignment mark across the sections of the final drive for assembly purposes. All parts must be reinstalled in the original locations. The weight of the final drive is 721 kg (1590 lb).

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Illustration 2	g00596007

3. Remove socket head bolts (1) from the final drive cover.

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Illustration 3	g00596010

4. Fasten Tooling (B) and a suitable lifting device to cover (2), as shown.

5. Remove bolts (3) and the washers that hold the cover in place.

6. Use a soft faced hammer in order to break the seal between the cover and the ring gear. Remove the cover. The weight of the cover is approximately 65 kg (145 lb).

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Illustration 4	g00596018

7. Remove spacer (4) and the shims from the cover.

8. Remove socket head bolts (5) and ring gear (6) from the cover.

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Illustration 5	g00596082

9. Remove sun gear (7). Use two people to remove carrier assembly (8) by lifting upward. The weight of carrier assembly (8) is approximately 24 kg (55 lb).

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Illustration 6	g00596242

10. Use Tooling (C) in order to remove retaining rings (9) and washers (10) .

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Illustration 7	g00596269

11. Remove gears (11) .

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Illustration 8	g00596273

12. Remove bearings (12) and spacer (13) .

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Illustration 9	g00596337

13. Remove washers (16). Use suitable Tooling to remove ring (14). Remove gear (15) .

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Illustration 10	g00596342

14. Remove spacer (17) .

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Illustration 11	g01035731

15. Fasten Tooling (B) and a suitable lifting device to carrier assembly (18). Remove the carrier assembly. The weight of the carrier assembly is 68 kg (150 lb).

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Illustration 12	g00596442

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Illustration 13	g00596446

16. Drive pin (19) inward to shaft (20). Use a soft faced hammer and tap the shaft downward in order to remove the shaft. Remove gear assembly (21) .

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Illustration 14	g00596485

17. Disassemble the gear assembly, as follows: washer (22), bearing (23), gear (24) and washer (25) .

18. Repeat Steps 16 through 17 for the remaining gear assemblies.

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Illustration 15	g00596764

19. Use suitable Tooling to remove ring (26). Remove gear (27) .

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Illustration 16	g00596790

20. Remove spacer (28) .

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Illustration 17	g01035733

21. Fasten Tooling (B) and a suitable lifting device to carrier assembly (29). Remove the carrier assembly (29). The weight of carrier assembly (29) is approximately 106 kg (235 lb).

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Illustration 18	g00596816

22. Drive pin (31) inward to shaft (30). Use a soft faced hammer and tap the shaft downward in order to remove the shaft. Remove gear assembly (32) .

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Illustration 19	g00596823

23. Disassemble the gear assembly, as follows: washer (33), bearing (34), gear (35), bearing (36) and washer (37) .

24. Repeat Steps 22 through 23 for the remaining gear assemblies.

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Illustration 20	g01035734

25. Fasten Tooling (B) and a suitable lifting device to gear (38), as shown. Remove the ring gear from main housing (39). The weight of the ring gear is approximately 124 kg (275 lb).

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Illustration 21	g00596864

26. Remove O-ring (40) from the main housing.

Note: Place wood blocks under the final drive in order to support the motor housing.

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Illustration 22	g00596901

27. Remove bolts (41) from gear (42) .

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Illustration 23	g00596918

28. Install Tooling (F) in the gear, as shown. Tighten Tooling (F) evenly in order to loosen the gear. Remove the gear from the motor housing.

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Illustration 24	g00596927

29. Remove shims (43) from the motor housing.

Note: The inner bearing cones and the outer bearing cones are a slip fit on the motor housing. The inner bearing cone may stay with either housing during separation.

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Illustration 25	g01035735

30. Fasten Tooling (G) and a suitable lifting device to main housing (39), as shown. Separate the main housing from motor housing (44). The motor housing will rest on the wood blocks. The weight of main housing (39) is approximately 188 kg (415 lb).

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Illustration 26	g00596986

31. Remove bearing (45) and the bearing cone from the main housing.

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Illustration 27	g00596994

32. Remove Duo-Cone seal (46) from the main housing.

33. Remove bearing cups (47) and (48) from the main housing.

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Illustration 28	g00597020

34. Remove pins (49) .

35. Remove bearing (50) and the bearing cone.

36. Remove Duo-Cone seal (51) from the motor housing.