950M, 962M, 950M Z and 962M Z Wheel Loaders Caterpillar

Connection Procedure

Note: Lubricate all pin bores and both pins with Tooling (K) before installation.

Note: The following steps are for the assembly of the lower hitch bearings.

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Illustration 1	g03656201

1. Position cap (34) and install four bolts (32) that are equally spaced. Ensure that cap (34) is seated firmly against the frame.

2. Lower the temperature of lower bearing cups (39). Use Tooling (J) in order to install lower bearing cup (39) so that lower bearing cup (39) contacts cap (37). Apply clean oil to lower bearing cone (40) and install lower bearing cone (40).

3. Apply clean oil to upper bearing cone (40) and install upper bearing cone (40). Lower the temperature of upper bearing cup (39). Use Tooling (J) in order to install upper bearing cup (39) until light contact pressure is made on cones (40).

4. Remove bolts (32) and cap (34).
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   Illustration 2	g03655578

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   Illustration 3	g03656219
   Typical Example

5. Position shims (38). Install caps (33) and (34) with four evenly spaced bolts (32).

6. Install Tooling (H) (not shown). Use a suitable torque wrench and Tooling (H) (not shown) in order to measure the rolling torque. Adjust the number of shims (38) in order to achieve a rolling torque that is between 1.4 N·m (12 lb in) and 5.6 N·m (49 lb in). Remove Tooling (H) (not shown).

7. Remove bolts (32) and caps (33) and (34).
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   Illustration 4	g03655499

8. Use Tooling (J) in order to install lip seal (36) in cap (33) and lip seal (37) in cap (34). Lubricate lip seals (36) and (37) with oil.
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   Illustration 5	g03655495

9. Install spacer (35) into cap (33).
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   Illustration 6	g03656463

10. Position the required number of shims (38) . Position caps (34) and (33). Install bolts (32).
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    Illustration 7	g03655488

11. Connect hose assembly (31).

    Note: The following steps are for the assembly of the upper hitch bearings.

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    Illustration 8	g03656472

12. Position cap (24) and install three bolts (22) that are equally spaced. Ensure that cap (24) is seated firmly against the frame. Apply Tooling (K) to the bores.

13. Lower the temperature of lower bearing cup (27). Use Tooling (J) in order to install lower bearing cup (27) so that lower bearing cup (27) contacts cap (24). Apply clean oil to lower bearing cone (28) and install lower bearing cone (28).

14. Apply clean oil to upper bearing cone (28) and install upper bearing cone (28). Lower the temperature of upper bearing cup (27). Use Tooling (J) in order to install upper bearing cup (27) so that light contact pressure is made with upper bearing cone (28).

15. Remove bolts (22) and cap (24).
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    Illustration 9	g03656488

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    Illustration 10	g03656495

16. Position shims (23). Position caps (21) and (24) and install three bolts (22) that are evenly spaced.

17. Install Tooling (H) (not shown). Use a suitable torque wrench and Tooling (H) (not shown) in order to measure the rolling torque. Adjust the number of shims (23) in order to achieve a rolling torque that is between 2.3 N·m (20 lb in) and 13.6 N·m (120 lb in). Remove Tooling (H) (not shown).

18. Remove bolts (22) and caps (21) and (24).
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    Illustration 11	g03655370

19. Use Tooling (J) in order to install lip seal (26) to cap (24). Use Tooling (J) in order to install lip seal (25) to cap (21).
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    Illustration 12	g03655367

20. Position the required number of shims (23) (not shown). Position caps (24) and (21). Install bolts (22).
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    Illustration 13	g03656534

21. Lower the temperature of sleeve bearings (29) and (30). Install sleeve bearings (29) and (30) in the upper rear hitch.
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    Illustration 14	g03654084

22. Attach Tooling (H) a suitable lifting device to the front frame and apply slight lifting tension.

    Note: Do not exceed the lifting capacity of Tooling (H).

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    Illustration 15	g03381886

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    Illustration 16	g00364111

23. Remove Tooling (G) from the front frame. Use a suitable lift truck and the suitable lifting device in order to align the pin bores of the front frame and the rear frame.
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    Illustration 17	g00432878

24. Use Tooling (A) and the suitable lifting device attached in Step 22 in order to align the pin bores.

    Note: Do not exceed the lifting capacity of Tooling (H).

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    Illustration 18	g03655282

25. Lower the temperature of pin assembly (18) to −50° ± 5°C (−58° ± 9°F) and install pin assembly (18). Install bolt (19).
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    Illustration 19	g03655280

26. Install spacer (17) to the lower hitch.
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    Illustration 20	g03656545

27. Lower the temperature of pin (16). Install pin (16).
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    Illustration 21	g03656547

28. Measure the distance between the face of spacer (17) and the frame. Record at least four measurements in four different locations around spacer (17). Using the smallest measurement, subtract 0.25 mm (0.010 inch). The final distance is the correct shim thickness.
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    Illustration 22	g03655256

29. Install shims (15) equal to the thickness recorded in Step 28.

30. Install plate (14). Install bolts (12). Tighten bolts (12) to a torque of 100 ± 20 N·m (75 ± 15 lb ft).

    Note: Pin (16) must still be in a frozen state when bolts (13) are installed.

31. Install bolts (13). Tighten bolts (13) to an initial torque of 250 ± 40 N·m (184 ± 30 lb ft).

32. When pin (16) has reached ambient temperature. Double torque bolts (13) using an alternating sequence with a dynamic torque of 620 ± 30 N·m (457 ± 22 lb ft) to achieve a minimum static torque of 490 N·m (361 lb ft).
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    Illustration 23	g03654084

33. Remove Tooling (H) and the suitable lifting device from the loader frame.
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    Illustration 24	g03653811

34. Remove the suitable cribbing from the rear frame.
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    Illustration 25	g00432878

35. Remove Tooling (A) from the rear frame.
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    Illustration 26	g03380438

36. Release the pressure from Tooling (F) in order to apply the parking break. Remove Tooling (F).
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    Illustration 27	g03653758

37. Connect hose assembly (11).
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    Illustration 28	g03653701

38. Position the steering cylinder. Install pin assembly (9) and install bolt (10). Connect hose assembly (8). Repeat for the opposite steering cylinder.
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    Illustration 29	g03653677

39. Install bracket assembly (7). Connect hose assemblies (6).
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    Illustration 30	g03653654

40. Connect harness assembly (5) and install clamp (4).
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    Illustration 31	g03653604

41. Connect two hose assemblies (3). Connect two hose assemblies (2). connect five hose assemblies (1).

42. Fill the hydraulic tank with oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct filling procedure.

End By:

1. Connect the steering frame lock.

2. Install the center drive shaft.

3. Install the cab.