CIPI UNDERCARRIAGE Arrangements: 1667049, 2372904, 3Q6481, 6Z7988, 6Z7989, 9Q5032, 9Q5040, 9Q5043, 9Q5046, 9Q5047, 9Q5066, 9Q5074, 9Q5097, 9Q5098, 9Q5116, 9Q5134, 9Q5136, 9Q5142, 9Q5147, 9Q5148, 9Q5149, 9Q5172 and 9Q5204 Caterpillar

Disassembly Procedure for the Final Drive on CIPI Undercarriage Arrangements which are Based on 330 and 330B Track Type Excavators

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.

2. Put an alignment mark across the sections of the final drive for assembly purposes. The parts must be reinstalled in the part's original locations.

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Illustration 1	g00511587

3. Fasten the final drive to Tool (A), as shown. The combined weight of the final drive and final drive sprocket is 531 kg (1170 lb).

4. Remove 20 bolts (1) and the washers that secure the cover to the final drive.

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Illustration 2	g00511600

5. Use a soft faced hammer and break the seal between cover (2) and the ring gear. Fasten Tool (B) and a hoist to cover (2), as shown. Remove the cover. The weight of the cover is 30 kg (66 lb).

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Illustration 3	g00511631

6. Remove thrust plate (5) from the cover.

7. Remove 12 socket head bolts (3) and ring gear (4) from the cover.

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Illustration 4	g00511636

8. Remove sun gear (6). Remove carrier assembly (7) by lifting the carrier assembly straight up. The weight of the carrier assembly is approximately 14 kg (30 lb).

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Illustration 5	g00511640

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Illustration 6	g00572334

Note: Two spacers (8) are used with carrier assembly (7). One of the spacers fits on the top side of carrier assembly (7). The other spacer (8) is located in the carrier of carrier assembly (15) .

9. Remove spacer (8) from carrier assembly (7) .

Note: Planetary gears (11) might have oil grooves "L". Note the position of the oil grooves in relation to the carrier for assembly purposes.

10. Remove retaining ring (9) with Tool (C). Remove two thrust washers (10) and planetary gear (11) from the carrier. Remove bearing (12) from the planetary gear.

11. Repeat Step 10 in order to remove the other two planetary gears from the carrier.

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Illustration 7	g00511653

12. Use a screwdriver, and remove retaining ring (13) from the carrier. Remove sun gear (14) from the carrier.

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Illustration 8	g00511661

13. Use two people in order to remove carrier assembly (15). Remove the carrier assembly by pulling the carrier assembly straight up. The weight of the carrier assembly is approximately 25 kg (55 lb).

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Illustration 9	g00511682

Note: Spacer (16) may remain with carrier assembly (15), or the spacer may remain with carrier assembly (24). Refer to Step 19.

14. Remove spacer (16) from carrier assembly (15) .

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Illustration 10	g00511735

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Illustration 11	g00572352

Note: If spring pin (17) is recessed below the outside surface of the carrier, measure the depth of the spring pin and record this measurement for assembly purposes.

15. Drive spring pin (17) into planetary shaft (18) with a hammer and a punch.

Note: Planetary gears (20) might have oil grooves "M". Note the position of the oil grooves in relation to the carrier for assembly purposes.

16. Remove planetary shaft (18), two thrust washers (19) and planetary gear (20) from the carrier. Remove bearing (21) from the planetary gear. Remove spring pin (17) from planetary shaft (18) with a hammer and a punch.

17. Repeat Steps 15 and 16 in order to remove the other two planetary gears from the carrier.

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Illustration 12	g00511788

18. Use a screwdriver, and remove retaining ring (22). Remove sun gear (23) from the carrier.

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Illustration 13	g00511795
Typical example

19. If spacer (16) was not removed in Step 14, remove the spacer from carrier assembly (24) at this time.

20. Slide a piece of steel bar stock between the planetary gears in carrier assembly (24), as shown. Make sure that the bar stock is centered in the carrier assembly. Fasten a lifting sling and a hoist to the steel bar stock, as shown. Slowly lift carrier assembly (24) from the final drive. The weight of the carrier assembly is approximately 36 kg (80 lb).

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Illustration 14	g00511799
Typical example

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Illustration 15	g00572382

Note: If spring pin (25) is recessed below the outside surface of the carrier, measure the depth of the spring pin and record this measurement for assembly purposes.

21. Drive spring pin (25) into planetary shaft (26) with a hammer and a punch.

Note: Planetary gears (28) might have oil grooves "N". Note the position of the oil grooves in relation to the carrier for assembly purposes.

22. Remove planetary shaft (26), two thrust washers (27) and planetary gear (28) from the carrier. Remove two bearings (29) from the planetary gear. Drive spring pin (25) out of planetary shaft (26) with a hammer and a punch.

23. Repeat Steps 21 and 22 in order to remove the other planetary gears from the carrier.

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Illustration 16	g00511809

Note: It will be necessary to pry ring gear (30) away from main housing (31) in order to install the lifting slings.

24. Fasten lifting slings and a hoist to ring gear (30), as shown. Remove the ring gear from main housing (31). The weight of the ring gear is 66 kg (145 lb).

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Illustration 17	g00511825

25. Remove O-ring seal (32) from main housing (31) .

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Illustration 18	g00511857
Typical example

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Illustration 19	g00511869

26. Remove socket head bolts (33) from gear (34) .

27. Use Tooling (D) to remove gear (34) from the housing.

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Illustration 20	g00511872

28. Remove shims (35) from the housing.

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Illustration 21	g00511882

29. Fasten Tool (E) and a hoist to main housing (31), as shown. Separate the main housing and the final drive sprocket from the motor housing. The combined weight of the main housing and final drive sprocket is 191 kg (420 lb).

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Illustration 22	g00511906

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

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Illustration 23	g00511934

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Illustration 24	g00511939

31. Remove Duo-Cone seal (37) from the main housing.

32. Use Tooling (F) to remove bearings (38) and (39) from the main housing.

33. If necessary, remove the final drive sprocket from the main housing. Refer to Disassembly and Assembly, "Final Drive Sprocket - Remove and Install" in this manual for the procedure to remove the final drive sprocket from the main housing.

Disassembly Procedure for the Final Drive on CIPI Undercarriage Arrangements which are Based on 330C Track Type Excavators

Start By:

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

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will prevent dirt from entering the internal mechanism.

1. Put an alignment mark across the sections of the final drive for assembly purposes. The parts must be reinstalled in the part's original locations.

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Illustration 25	g00892878

2. Use a hoist and Tooling (H) to position the final drive on Tooling (A). The combined weight of the final drive and final drive sprocket is approximately 550 kg (1200 lb).

3. Remove bolts (1) .

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Illustration 26	g00892883

4. Use Tooling (B) and a hoist to remove cover (2). The weight of the cover is approximately 32 kg (70 lb).

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Illustration 27	g00892888

5. Remove bolts (3) and gear (4). Check plate (6). Replace the plate if the plate is worn. Remove plug (5) from cover (2) .

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Illustration 28	g00892906

6. Remove O-ring seal (7) from plug (5) .

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Illustration 29	g00892930

7. Remove gear (8) and spacer (9) .

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Illustration 30	g00892965

8. Use Tooling (C) to remove retaining ring (10). Remove washer (11) and gear (12). Remove bearing assembly (13) and washer (14) .

9. Repeat Step 8 for the additional two gear assemblies.

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Illustration 31	g00892968

10. Remove retaining ring (15) .

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Illustration 32	g00892975

11. Remove carrier assembly (16) .

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Illustration 33	g00892977

12. Remove gear (17) and spacer (18) .

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Illustration 34	g00892997

13. Use Tooling (D), a suitable lifting device, and a hoist to remove planetary carrier (19). The weight of the planetary carrier is approximately 48 kg (105 lb).

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Illustration 35	g00893019

14. Remove retainer ring (21). Lift planetary carrier (19) off sun gear (20) .

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Illustration 36	g00896860

15. Drive spring pin (23) into planetary shaft (22) .

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Illustration 37	g00893043

16. Remove planetary shaft (22) and spring pin (23). Remove the spring pin from the shaft.

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Illustration 38	g00896863

17. Remove washers (24), bearing (25), and planetary gear (26) .

18. Repeat Steps 15 through 17 in order to remove the other two planetary gears from the carrier.

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Illustration 39	g00897431

19. Remove spacer (27) .

20. Use a suitable lifting device or two people to remove carrier assembly (28). The weight of the carrier assembly is approximately 38 kg (85 lb).

    Note:

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Illustration 40	g00893652

21. Drive spring pin (30) into shaft (29) .

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Illustration 41	g00893658

22. Remove shaft (29) and spring pin (30). Remove the spring pin from the shaft.

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Illustration 42	g00893674

23. Remove washers (31), bearings (32), and planetary gear (33) .

24. Repeat Steps 21 through 23 in order to remove the other three planetary gears from the carrier.

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Illustration 43	g00893683

25. Use a suitable lifting device or two people to remove gear (34). The weight of the gear is approximately 41 kg (90 lb).

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Illustration 44	g00893694

26. Remove O-ring seal (35) .

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Illustration 45	g00893706

27. Remove peening operation from stopper plate assembly (36) .

    Note: Removal of the peening operation will allow stopper plate assembly to move without damage to parts.

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Illustration 46	g00893837

28. Install Tooling (E). Remove stopper plate assembly (36) .

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Illustration 47	g00893850

29. Use a hoist and Tooling (F) to remove sprocket housing (38) from housing (37). The weight of the sprocket housing is approximately 385 kg (850 lb).

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Illustration 48	g00893858

30. Remove Duo-Cone seal kit (39) from housing (37) .

31. Rotate sprocket housing (38) .

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Illustration 49	g00893865

32. Remove Duo-Cone seal kit (40) .

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Illustration 50	g00893872

33. Use Tooling (G) in order to remove bearings (41) and (42) from the housing.

    Note: Sprocket housing (38) must be rotated in order to remove bearing (42) .

34. If necessary, remove the final drive sprocket from the sprocket housing.

    Reference: Refer to Disassembly and Assembly, "Final Drive Sprocket - Remove and Install" in this manual.