980L Tier 3 Wheel Loader Machine System Caterpillar

Connection Procedure

1. Thoroughly clean the bores of the upper hitch and the lower hitch.
   Show/hide table

   Illustration 1	g06131867

2. Install lower cap (36) on the lower hitch. Fasten the cap in position with four equally spaced bolts, as shown.
   Show/hide table

   Illustration 2	g06131868

   Note: Bearing cup (38) faces upward.

3. Coat the bores with Tooling (P). Lower the temperature of lower bearing cup (38) to -45° to -55°C (-49° to -67°F). Install lower bearing cup (38) in the lower hitch, as shown. Use Tooling (L) to install bearing cup (38) until bearing cup (38) contact with the lower cap.
   Show/hide table

   Illustration 3	g06131870

   Show/hide table

   Illustration 4	g06131872

   Note: The two bearing cones are installed facing opposite directions.

4. Lubricate bearing cones (39) with hydraulic oil. Install bearing cones (39) in the lower hitch, as shown.
   Show/hide table

   Illustration 5	g06131874

5. Lower the temperature of another upper bearing cup (38) to -45° to -55°C (-49° to -67°F). Install upper bearing cup (38) in the lower hitch, as shown. Make sure that bearing cup (38) is down far enough to create a slight contact pressure on the bearing cones.
   Show/hide table

   Illustration 6	g06131878

6. Install the original shims and upper cap (35). Fasten upper cap (35) in position with five equally spaced bolts (34), as shown. Tighten bolts (34) to a torque of 100 ± 20 N·m (74 ± 15 lb ft). Install Tooling (M) on the bearing cones. Use Tooling (M) and a torque wrench to check the rolling torque. The correct rolling torque is 11.3 to 39.6 N·m (100.0 to 350.5 lb in).

   Note: Adding shims will decrease the amount of rolling torque. Removing shims will increase the amount of rolling torque.

7. Remove Tooling (M), the upper cap, and the lower cap. Record the correct number of shims for later installation.
   Show/hide table

   Illustration 7	g00523210

   Show/hide table

   Illustration 8	g06131683

8. Lubricate the sealing lips lightly with the lubricant that is being sealed. Use Tooling (L) to install lip seals (37) in the upper cap and the lower cap. Install lip seal (37) in the lower cap with the sealing lip toward the outside of the cap. Install lip seal (37) in the upper cap with the sealing lip inside the cap.

   Note: Align the upper cap and the lower cap with the alignment marks that were made during the original removal.

9. Install the upper cap, the lower cap, and the number of shims that were determined during Step 6. Tighten the bolts to a torque of 100 ± 20 N·m (74 ± 15 lb ft).
   Show/hide table

   Illustration 9	g06131675

10. Install spacer (33) in the upper cap of the lower hitch, as shown.
    Show/hide table

    Illustration 10	g06131885

11. Use three bolts (26) to fasten lower cap (28) to the upper front loader frame, as shown.
    Show/hide table

    Illustration 11	g06131886

12. Coat the bores with Tooling (P). Lower the temperature of bearing cup (31) to -45° to -55°C (-49° to -67°F). Install bearing cup (31) in the upper hitch, as shown. Use Tooling (L) to install the bearing cup until the bearing cup contact with the lower cap.
    Show/hide table

    Illustration 12	g06131887

    Show/hide table

    Illustration 13	g06131889

    Note: The two bearing cones are installed facing opposite directions.

13. Lubricate bearing cones (32) with hydraulic oil. Install bearing cones (32) in the upper hitch, as shown.
    Show/hide table

    Illustration 14	g06131886

14. Lower the temperature of another bearing cup (31) to -45° to -55°C (-49° to -67°F). Install bearing cup (31) in the upper hitch, as shown. Make sure that bearing cup (31) is down far enough to create a slight contact pressure on the bearing cones.
    Show/hide table

    Illustration 15	g06131890

15. Install the original shims and upper cap (27). Fasten the upper cap in position with three equally spaced bolts (26), as shown. Tighten bolts (26) to a torque of 100 ± 20 N·m (74 ± 15 lb ft). Install Tooling (N) on the bearing cones. Use Tooling (N) and a torque wrench to check the rolling torque. The correct rolling torque is 2.3 to 13.6 N·m (20.4 to 120.4 lb in).

    Note: Adding shims will decrease the amount of rolling torque. Removing shims will increase the amount of rolling torque.

16. Remove Tooling (N), upper cap (27), and lower cap (28). Record the correct number of shims for later installation.
    Show/hide table

    Illustration 16	g06131654

    Show/hide table

    Illustration 17	g00523224

17. Lubricate the sealing lips lightly with the lubricant that is being sealed. Use Tooling (L) to install lip seals (30) in the upper cap and the lower cap. Install lip seal (30) in the lower cap with the sealing lip inside the cap. Install lip seal (30) in the upper cap with the sealing lip toward the outside of the cap.

    Note: Align the upper cap and the lower cap with the alignment marks that were made during the original removal.

18. Install the upper cap, the lower cap, and the number of shims that were determined during Step 15. Tighten the bolts to a torque of 100 ± 20 N·m (74 ± 15 lb ft).
    Show/hide table

    Illustration 18	g06131412

19. Lower the temperature of sleeve bearing (24). Install sleeve bearing (24) in the upper hitch of the rear loader frame. Make sure that the face of the bearing is even with the outer surface of the rear loader frame.

    Repeat Step 19 for the installation of sleeve bearing (25).

    Show/hide table

    Illustration 19	g03412657
    For Tooling (A)

    Show/hide table

    Illustration 20	g03412653

    Note: Be sure that Tooling (A) is moved with the rear loader frame.

20. Attach a suitable lifting device to rear loader frame.

21. Use Tooling (A) to raise or lower the hitch of the rear loader frame.

    Note: The two individual hydraulic lift stands that constitute Tooling (A) may be operated independently of each other. This will help with the alignment of the pin bores.

    Show/hide table

    Illustration 21	g06395855
    Typical example For Tooling (A1)

    Show/hide table

    Illustration 22	g03412653

    Note: Be sure that Tooling (A1) is moved with the rear loader frame.

22. Attach a suitable lifting device to rear loader frame.

23. Use Tooling (A1) to raise or lower the hitch of the rear loader frame. Refer to Tool Operating Manual, NEHS1328, "Lift Group (Stand - 60 Ton)" for more information on Tooling (A1).

    Note: The two individual hydraulic lift stands that constitute Tooling (A1) may be operated independently of each other. This will help with the alignment of the pin bores.

    Show/hide table

    Illustration 23	g03412539

24. Lower the temperature of pin assembly (16) to -45° to -55°C (-49° to -67°F). Coat the pin bores with Tooling (P). Install upper hitch pin assembly (16), the washer, and bolt (15). Tighten bolt (15) to a torque of 100 ± 20 N·m (74 ± 15 lb ft).
    Show/hide table

    Illustration 24	g06131404

25. Install washers (18) and bolts (17). Tighten bolts (17) to a torque of 1600 ± 200 N·m (1180 ± 148 lb ft).
    Show/hide table

    Illustration 25	g06131902
    Typical example

26. Coat the pin bores with Tooling (P). Install lower hitch pin (22) into the bores of the lower hitch. Install lower hitch pin (22) from the top side, as shown.

27. Connect the steering frame lock.
    Show/hide table

    Illustration 26	g06131410

28. Install spacer (23) into the lower hitch, as shown.
    Show/hide table

    Illustration 27	g06131407

29. Install plate (21) with the washers and two bolts (20).

30. Use a feeler gauge to measure the gap between plate (21) and the frame.

31. Remove bolts (20) and the washers. Install the required number of shims that are equal to the distance that was measured in Step 30 minus 0.25 mm (0.010 inch).

32. Install plate (21), the washers, and bolts (19). Tighten bolts (19) to a torque of 100 ± 20 N·m (74 ± 15 lb ft).

33. With the pin in frozen state, install the washers and bolts (20). Tighten bolts (20) to a torque of 425 ± 50 N·m (313 ± 37 lb ft).

34. After the pin has reached the ambient temperature, double torque bolts (20) using an alternating torque with a dynamic torque of 950 ± 50 N·m (701 ± 37 lb ft) to seat the pin and achieve the minimum static torque of 800 N·m (590 lb ft).
    Show/hide table

    Illustration 28	g03411417
    For Tooling (B)

    Show/hide table

    Illustration 29	g03411481

35. Remove Tooling (B) and suitable block (14).
    Show/hide table

    Illustration 30	g06399761
    For Tooling (B1)

    Show/hide table

    Illustration 31	g03411481

36. Remove Tooling (B1) and suitable block (14). Refer to Tool Operating Manual, NEHS1303, "Lift Group (Stand - 25 Ton)" for more information on Tooling (B1).
    Show/hide table

    Illustration 32	g03411403

37. Move the rod end of steering cylinder (10) into position. Install pin assembly (12) and connect grease hose assemblies (11).
    Show/hide table

    Illustration 33	g03411331

38. Connect hose assemblies (9). Install clip (10).
    Show/hide table

    Illustration 34	g03411327

39. Use to people to install platform (8). The weight of platform (8) is approximately 34 kg (75 lb). Install platform (8).
    Show/hide table

    Illustration 35	g03411319

40. Connect harness assemblies (6). Attach cable straps (7).
    Show/hide table

    Illustration 36	g06131403

    Show/hide table

    Illustration 37	g03411303

41. Connect hose assemblies (3) and (5). Install cable strap (4). Install cable straps (2).
    Show/hide table

    Illustration 38	g03411197

42. Connect hose assemblies (1).
    Show/hide table

    Illustration 39	g01114291
    Typical example.

43. Remove Tooling (C).

End By:

1. Install the cab.

2. Install the center drive shaft.

3. Install the Bucket.

4. Separate the steering frame lock.