D6G Track-Type Tractor Power Train Caterpillar

Installation Procedure

Note: Check the condition of all seals and of all components. If any parts are worn or damaged, use new parts for replacement.

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Illustration 1	g00461391

1. Heat the outer bearing race to a maximum temperature of 135°C (275°F).

2. Install the outer race on the pinion shaft, as shown.

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Illustration 2	g00461394

3. Lower the temperature of bearing (1) .

4. Install the bearing in cage (2) .

   Note: Make sure that the hole in the bearing is in alignment with the hole that is in the cage as you install the bearing.

5. Install the dowel that holds the bearing in position.

6. Install a new seal (3) .

7. Put clean oil on the seal.

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Illustration 3	g00461401

8. Install the bearing and cage (4) .

   Note: Make sure that the oil groove that is in the cage is down, as shown.

9. If a separation of the gear and the pinion was made, install the retainer in the pinion. Install the gear over the pinion.

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Illustration 4	g00461402

10. Heat the outer bearing race (5) to a maximum temperature of 135°C (275°F).

11. Install the outer bearing race on the gear and the pinion, as shown.

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Illustration 5	g00461403

12. Turn over the gear and the pinion.

13. Heat the inner bearing race (6) to a maximum temperature of 135°C (275°F).

14. Install the inner bearing race on the gear and the pinion, as shown.

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Illustration 6	g00461404

15. Lower the temperature of bearing cup (7) .

16. Install the bearing cup into the case that is for the steering clutch so that the cup is flush with the machined surface of the case.

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Illustration 7	g00461405

17. Put 1P-0808 Multipurpose Grease on the bearing rollers.

18. Attach an appropriate lifting device and a hoist to the gear and the pinion.

19. Install the gear and pinion (8). The weight of the gear and the pinion is 34 kg (75 lb).

20. Install one bolt in the steering clutch case. Put a wire around the gear, the pinion and the bolt.

    Note: The wire will hold the gear and the pinion in position during installation of the gear and the hub.

21. Remove the hoist.

22. Put the gear on hub (9) .

23. Install the eighteen bolts, nuts and locks.

24. Heat the bearing that is for the gear and hub (9) to a maximum temperature of 135°C (275°F).

25. Install the bearing on hub (9) .

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Illustration 8	g00461406

26. Attach an appropriate lifting device and a hoist to the gear and hub (9) .

27. Position the gear and hub (9) on the sprocket shaft.

28. Remove the wire from the gear and the pinion.

29. Remove the bolt from the steering clutch case.

30. Put the two bearings in position in the final drive case.

    Note: Make sure that the holes that are in the bearings are in alignment with the holes that are in the final drive case.

31. Install the dowels that hold the bearings in position. Use a 1/4 inch - 20 NC bolt in order to install the dowels.

32. Install the plugs over the dowels.

End By:

1. Install the final drive cases. Refer to Disassembly and Assembly, "Final Drive Case - Remove and Install".
2. Fill the steering clutch case and the bevel gear case with oil to the correct level. Refer to Operation and Maintenance Manual for the correct information.