D8T Track-Type Tractor Power Train Caterpillar

Removal Procedure

Start By:

1. Remove the main drive shaft.

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Illustration 1	g06301274

1. Drive the machine onto suitable cribbing. The suitable cribbing needs to raise the rear of the machine a minimum height of 305 mm (12 inches) from the ground.

2. Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.

3. Drain the torque converter.
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   Illustration 2	g06292403

4. Remove the bolt and clip (1).
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   Illustration 3	g06292405

5. Disconnect tube assembly (2).
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   Illustration 4	g06292406

6. Disconnect hose assembly (3).

7. Remove clips (4) and (5).

8. Remove tube assemblies (2) and (6).
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   Illustration 5	g06301022

9. Disconnect hose assembly (7).
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   Illustration 6	g06301014

10. Remove screen (8).
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    Illustration 7	g06301051

11. Disconnect hose assembly (9), hose assembly (10), and hose assembly (11).
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    Illustration 8	g06301068

12. Remove bolts (12) and elbow (13).
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    Illustration 9	g06301091
    The cab is removed for photographic purposes only.

13. Remove clips (14) and (15). Position the hose assemblies out of the way.

14. Loosen clamps (16) and (18).

15. Remove hose (17).
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    Illustration 10	g06301097

16. Remove bolt (19).

17. Loosen clamps (20) and (21).

18. Disconnect hose (22).
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    Illustration 11	g06301113

19. Disconnect hose assembly (23), hose assembly (24), and hose assembly (25).
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    Illustration 12	g06301185

20. Remove the bolt and clip (26).
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    Illustration 13	g06301189

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    Illustration 14	g06301190

21. Disconnect harness assembly (27).

22. Cut cable straps (28).

23. Remove the bolt and clip (29).

24. Disconnect harness assembly (30) and harness assembly (31).

25. Position harness assembly (27), harness assembly (30), and harness assembly (31) out of the way.
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    Illustration 15	g06301195

26. Remove bolt (33) and position bracket (32) out of the way.
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    Illustration 16	g06395120

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    Illustration 17	g06301202

27. Attach Tooling (B) and Tooling (A) and a suitable lifting device to torque converter (35). The weight of torque converter (35) is approximately 272 kg (600 lb).

28. Remove bolts (34).

29. Position Tooling (C) under the machine.

30. Lower torque converter (35) onto Tooling (C).

31. Remove Tooling (C) and torque converter (35) from the machine.
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    Illustration 18	g06301418

32. Remove O-ring seal (36) from torque converter (35).
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    Illustration 19	g06301423

33. Remove retaining ring (37) and sun gear (38).

Installation Procedure

1. Install torque converter (35) in the reverse order of removal.

   1. Lubricate the bore for elbow (13) lightly with power train oil before installation.