D6T Track-Type Tractor Power Train Caterpillar

Assembly Procedure

Reference: Refer to Specifications, "Torque Converter"
in the Service Manual for your machine.

Note: Use Step 1 and Step 2 to verify that the torque divider is capable of an efficient operation. Then, follow the procedure for assembly of the torque converter.

1. Check the clearance between the turbine wheel and the stator by performing the following steps:
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   Illustration 1	g01249338

   1. Place stator (32) on turbine wheel (41). While you hold the stator against one side of the turbine wheel, measure the clearance between the stator and the turbine wheel with Tooling (K).

   2. The correct diameter across the components between the stator and the turbine wheel is 1.76 mm to 1.94 mm (0.070 in to 0.077 in). Check the clearance at four different points on the turbine wheel. The maximum clearance for any measurement is 2.15 mm (0.085 in).

   3. The running clearance is one half of the clearance across the diameters. The correct running clearance is 0.88 mm to 0.97 mm (0.035 in to 0.039 in). The maximum running clearance for any measurement is 1.08 mm (0.043 in).

2. Check the clearance between the impeller wheel and the stator by performing the following steps:
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   Illustration 2	g00837224

   1. Use a 7 in outside micrometer or an 8 in outside micrometer for outside diameters to measure the diameter of the flange at four points on the stator. Record the minimum reading.
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      Illustration 3	g01263477

   2. Use a 7 in inside micrometer or an 8 in inside micrometer to measure the diameter of the flange at four points on impeller (30). Record the maximum reading.

   3. The clearance across the diameters is the difference between the readings from Step 2.b and from Step 2.a. The correct clearance between the stator and the impeller wheel is 1.17 mm to 1.32 mm (0.047 in to 0.052 in). The maximum clearance for any measurement is 1.54 mm (0.061 in).

   4. The running clearance is one half of the clearance across the diameters. The correct running clearance is 0.59 mm to 0.66 mm (0.024 in to 0.026 in). The maximum running clearance for any measurement is 1.54 mm (0.061 in).
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   Illustration 4	g01248983

3. Use Tooling (F) to install bearing (51) in housing (42).
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   Illustration 5	g01249482

4. Place retainer (50) on the housing. Install bolts (49). Tighten the bolts to a torque of 50 ± 7 N·m (37 ± 5 lb ft). Install oil ring (42).
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   Illustration 6	g01249500

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   Illustration 7	g01248975

5. Use Tooling (F) to install two bearings (48) in output flange (46) by performing the following steps:

   1. Install one bearing (48) to a 25.4 mm (1.00 in) depth below the surface of output flange (46).

   2. Install one bearing (48) even with the surface of the splined end of output flange (46).

   3. After you install bearings (48), check the inside diameter of the bearings. The correct inside diameter after installation is 44.501 ± 0.013 mm (1.7520 ± 0.0005 in).

6. Raise the temperature of carrier (49). Install carrier (49) on output flange (46). Install seal ring (50) on the carrier.

7. Lubricate the seal ring (50). Pull the ends of the seal ring together. Install output flange (46) in the housing.

   Note: Do not damage the seals during the assembly of the components.

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   Illustration 8	g01248969

8. Position the retaining ring on the outer groove on the output flange . Install ring gear (45).

9. Install stop pins (43) in housing (42).
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   Illustration 9	g01248965

10. Turn over housing (42). Place the spacer that lies under the turbine wheel on the output flange.

11. Install turbine wheel (41) on the output flange.

12. Use Tooling (J) to install retaining ring (40).
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    Illustration 10	g01248962

13. Use Tooling (H) to install bearing (39) in planetary carrier (36).
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    Illustration 11	g01249866

14. Position carrier (36) with Tooling (J) on impeller (30). Use Tooling (G) to install the planetary carrier on the impeller.
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    Illustration 12	g01248960

15. Install dowel (38).
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    Illustration 13	g01250003

16. Turn over impeller (30). Place retainer (37) on the impeller. Install the bolts. Tighten the bolts to a torque of 50 ± 7 N·m (37 ± 5 lb ft).
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    Illustration 14	g01248944

17. Install pins (33).

18. Install seal ring (35) on the carrier.

19. Lubricate seal ring (35).
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    Illustration 15	g01250021

20. Position carrier (34) on impeller (30).

    Note: The ball should be lined up with the groove in the bearing.

    Note: Do not damage the seals during assembly.

21. Use Tooling (F) to install carrier (34).
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    Illustration 16	g01250053

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    Illustration 17	g01250064

22. Place stator (32) on pins (33). Apply Tooling (M) to the threads of bolts (31). Install bolts (31) and tighten to a torque of 40 ± 5 N·m (30 ± 4 lb ft).
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    Illustration 18	g01250102

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    Illustration 19	g01250105

23. Attach Tooling (E) and a suitable lifting device to impeller (30). The weight of impeller (30) is approximately 30 kg (65 lb). Install bolts (24). Tighten bolts (24) to a torque of 50 ± 7 N·m (36 ± 5 lb ft).
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    Illustration 20	g01248826

24. Raise the temperature of bearing race (27). Install bearing race (27).

25. Install seal ring (28) onto shaft (26).

26. Raise the temperature of bearing (29). Install bearing (29).
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    Illustration 21	g01250120

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    Illustration 22	g01248772

27. Install shaft (26) in the torque converter.

    Note: Do not damage the seals during assembly.

28. Use Tooling (D) to install retaining ring (25).

29. Install O-ring seal (23) and lip seal (20).

30. Position gear (22) and install bolts (21). Tighten bolts (21) to a torque of 50 ± 7 N·m (37 ± 5 lb ft).
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    Illustration 23	g01248707

31. Lower the temperature of bearing (17). Install bearing (17) and retaining ring (16).

32. Install gear (19) and retaining ring (18).
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    Illustration 24	g01248578

33. Attach Tooling (B) and a suitable lifting device to housing assembly (15). The weight of housing assembly (15) is approximately 84 kg (185 lb). Position housing assembly (15).
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    Illustration 25	g01248569

34. Install bolts (14). Tighten bolts (14) to a torque of 50 ± 7 N·m (37 ± 5 lb ft).

35. Install yoke (12) and bolt (13). Tighten bolt (13) to a torque of 105 ± 15 N·m (77 ± 11 lb ft).
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    Illustration 26	g01248543

36. Install sensor (10) and outlet relief valve (11).
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    Illustration 27	g00533622

37. Place bearing (5) in planetary gear (6). Place one spacer (9) on each side of planetary gear (6), and place the components in the planetary carrier. Install shaft (7).

38. Align the hole in shaft (7) with the hole in the planetary carrier. Install pin (8) even with the surface of the planetary carrier.
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    Illustration 28	g00533624

39. Install retaining ring (3) in the inner diameter of planetary carrier (2). Position retainer (4) next to the spiral ring.
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    Illustration 29	g01263535

40. Position planetary carrier (2) onto shaft (16). Make sure that the retainer stays in place.

41. Use Tooling (A) to install retaining ring (1).

End By:

1. Install the torque converter.