793C Off-Highway Truck/Tractor Power Train Caterpillar

Installation Procedure

Note: Inspect the O-ring seals. Replace any O-ring seals that are worn or damaged.

Note: During the installation, lubricate the O-ring seals with the fluid that is being sealed.

1. Use Tooling (B) and a suitable lifting device to support the weight of the torque converter. The weight of the torque converter is approximately 1150 kg (2535 lb).

2. Use a suitable lifting device to raise the drive shaft as high as possible. Support the center tube with blocking.

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Illustration 1	g01032894

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Illustration 2	g01032896

3. Attach torque converter (63) to the flywheel housing.

4. Install the washers and bolts (62) .

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Illustration 3	g00510934

Note: During the installation of the torque converter, do not reuse bolts (59) and (60) .

5. Install spider (61) . Install bolts (60) .

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Illustration 4	g00510932

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Illustration 5	g00510933

6. Extend the drive shaft. Connect the output yoke of the torque converter to the drive shaft. Install bolts (59) .

   Note: During the removal and installation, refer to Disassembly and Assembly, "Drive Shaft (Main) - Remove and Install".

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Illustration 6	g00510931

7. Install front drive shaft guard (58) .

   Note: During the installation of the front drive shaft guard, refer to Disassembly and Assembly, "Drive Shaft Guard (Front) - Remove and Install".

8. Install O-ring seal (57) and connect hose assembly (56) .

9. Install O-ring seal (55) and connect hose assembly (54) .

10. Install O-ring seal (53) and connect hose assembly (52) .

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Illustration 7	g00510929

11. Reposition harness assemblies (51) for the installation to the torque converter.

12. Install O-ring seal (47) and connect hose assembly (46) .

13. Install O-ring seal (45) and connect hose assembly (44) .

14. Use Tooling (A) (not shown) to connect output speed sensor (50) of the torque converter. Install lockwire (49) and strap (48) .

    Note: During the installation of the output speed sensor, refer to Disassembly and Assembly.

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Illustration 8	g00510928

15. Connect the bypass switch of the transmission filter. Install nuts (43) . Tighten nuts (43) to a torque of 3.7 ± 0.3 N·m (2.73 ± 0.22 lb ft).

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Illustration 9	g00510927

16. Connect the bypass switch of the outlet screen for the torque converter. Install nuts (40) . Tighten nuts (40) to a torque of 3.7 ± .3 N·m (2.73 ± 0.22 lb ft).

17. Use Tooling (A) (not shown) to connect outlet temperature sensor (42) of the torque converter. Use straps (41) , as needed.

    Note: During the installation of the outlet temperature sensor, refer to Disassembly and Assembly for the correct procedure.

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Illustration 10	g00510926

18. Install clip (39) , the washer, and bolt (38) .

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Illustration 11	g00510924

19. Position hose (34) . Install O-ring seal (37) , split flange (36) , the washers, and bolts (35) .

20. Repeat Step 19 for remaining hose assemblies (32) and (33) .

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Illustration 12	g00510923

21. Position tube (31) . Install O-ring seal (30) , split flange (29) , the washers, and bolts (28) .

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Illustration 13	g00510922

22. Install the washers and bolts (27) .

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Illustration 14	g00510921

23. Install split clamp (26) , the washer, and bolt (25) .

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Illustration 15	g00510920

24. Install O-ring seal (17) , bolts (15) , block (16) , and the washers.

25. Install O-ring seal (20) and connect hose assembly (19) . Install O-ring seal (22) and connect hose assembly (21) .

26. Install O-ring seal (14) and connect hose assembly (12) . Install split flange (13) , the washers, and bolts (18) .

27. Install O-ring seal (24) and connect hose assembly (23) .

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Illustration 16	g00510919

28. Position hose assembly (9) . Install the grommet, split clamp (11) , the washer, and bolt (10) .

29. Position hose (8) and install the washer and bolt (7) .

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Illustration 17	g00510917

30. Position hose (3) . Install O-ring seal (6) and connect block (5) . Install washers and bolts (4) .

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Illustration 18	g00510916

31. Install the plug (1) . Install O-ring seal (2) . Replace the plug. Fill the torque converter with oil. The capacity of the torque converter and transmission sump is approximately 102 L (26.9 US gal).

End By: Remove the truck body retaining cable. Refer to Disassembly and Assembly, "Truck Body Retaining Cable - Remove and Install".