D6R2 Track-Type Tractor Power Train Caterpillar

Disassembly Procedure

Start By:

1. Remove the final drives.

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When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.

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Illustration 1	g01195912

1. Attach Tooling (A) and a suitable lifting device to planetary carrier (3) .

2. Remove bolts (1). Remove planetary carrier (3) and the two O-ring seals from the hub. The weight of planetary carrier (3) is approximately 137 kg (302 lb).

3. Remove retainers (2) .

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Illustration 2	g00841089

4. Place support under planetary carrier (3) in order to prevent damage. Use Tooling (B) and a suitable press to remove the planetary gear shafts.

5. Remove planetary gears (4) from planetary carrier (3) .

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Illustration 3	g00841091

6. Remove bearing cones (5) from gears (4) .

7. Remove the bearing cups from each side of the gears.

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Illustration 4	g00841092

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Illustration 5	g01195913

8. Remove bolts (6) and retainer (7) .

9. Attach a suitable lifting device to hub (12) and ring gear (8). The weight of hub (12) and ring gear (8) is approximately 68 kg (150 lb). Remove hub (12) and ring gear (8) .

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Illustration 6	g01195915

10. Turn over hub (9) and ring gear (8). Remove retaining ring (10). Attach a suitable lifting device to hub (9). The weight of hub (9) is approximately 37 kg (82 lb). The weight of ring gear (8) is approximately 32 kg (71 lb). Remove hub (9) .

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Illustration 7	g00841095

11. Install Tooling (C) on hub (12).

Note: Do not lift hub (12) too high. Do not allow hub (12) to contact the fitting on the hydraulic cylinder.

12. Use Tooling (C) to loosen hub (12) from spindle (13). Remove Tooling (C) .

13. Remove bearing cone (11) .

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Illustration 8	g01195917

14. Attach Tooling (D) and a suitable lifting device to hub (12). Remove hub (12) from spindle (13). The weight of hub (12) is approximately 180 kg (397 lb).

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Illustration 9	g00841099

15. Turn over hub (12). Remove Duo-Cone seal kit (15). Use a suitable hammer and a suitable punch to remove bearing cup (16) .

16. Turn over hub (12). Remove bearing cup (14) from the hub.

Note: If the Duo-Cone seal will be reused, mark the seal kits for installation purposes.

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Illustration 10	g00841101

Note: Bearing cone (18) may be damaged if the bearing cone is removed from spindle (13) .

17. Remove Duo-Cone seal (19) from spindle (13) .

18. If necessary, remove bearing cone (18) from the spindle.

19. Remove lip seal (17) from spindle (13) .