527 Track-Type Skidder Machine Supplements Caterpillar

Assembly Procedure

1. Clean all of the parts and inspect all of the parts. If parts are damaged or worn, install new parts. Put clean oil on all of the internal parts of the pump.

Note: Replace all O-ring seals, gaskets, and shaft seals.

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Illustration 1	g00620037

2. Use Tool (A) to install two snap rings (60) .

3. Use Tool (B) to install two lip seals (59) in the housing.

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Illustration 2	g00620036

4. Use bolts (58) to install swashplate bearings (55) and (57). Tighten bolts (58) to a torque of 4 ± .4 N·m (35 ± 3.5 lb in).

5. Install bearing cup (56) .

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Illustration 3	g00620033

6. Install bearing cone (54) .

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Illustration 4	g00620916

7. Install swashplate (46) in pump (2) .

8. Install shaft (45) in pump (2) .

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Illustration 5	g00619965

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Illustration 6	g00619966

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Sudden release of spring force can cause injury. To prevent the possibility of injury, follow the procedure to relieve the spring pressure.

Note: Use the following procedure to assemble the components of barrel (40) .

9. Put guide (41), spring (44), and guide (42) in position in barrel (40) .

10. Use a press to compress spring (44). Use Tool (A) to install snap ring (43) .

11. Be sure that snap ring (43) is properly seated. Slowly release the compression on spring (44) .

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Illustration 7	g00620032

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Illustration 8	g00620965

12. Install pistons (47) on plate (53). Install the pistons in barrel (40) .

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Illustration 9	g00620969

13. Install assembled barrel (40), the plate, and the pistons on the shaft as a unit. Be sure that the splines are aligned.

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Illustration 10	g00620975

14. Apply 9S-3263 Thread Lock Compound to the threads of bolts (49). Install plates (48) and (50) with the bolts. Tighten the bolts to a torque of 14 ± 1 N·m (124 ± 9 lb in).

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Illustration 11	g00619963

15. Install spacer (39) to the shaft.

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Illustration 12	g00619962

16. Install plug (38) and the O-ring seal in pump (2). Tighten the plug to a torque of 101.5 ± 4.5 N·m (75 ± 3 lb ft).

17. Install bearing cone (37) on the shaft.

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Illustration 13	g00619959

18. Install the O-ring seal, cover (36), and bolts (35). Tighten the bolts to a torque of 8.5 ± 1 N·m (75 ± 9 lb in).

Note: If the shaft bearings, the shaft, the head, or the housing were replaced, an end play adjustment must be made. To obtain axial shaft end play of .01 to .10 mm (.0004 to .0039 inch), use the required shims from the 9T-3038 Shaft Shim Kit .

19. Install gasket (34) on pump (2) .

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Illustration 14	g00619958

20. Install the O-ring seals on pistons (30) and (31). Apply Loctite No. 680 sealant to the threads of the pistons.

21. Install the pistons in head (24) and tighten to a torque of 79 ± 4 N·m (58 ± 3 lb ft).

22. If pin (33) was removed, install the pin.

23. Install bearing cup (32) .

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Illustration 15	g00619956

24. Install plate (29). Be sure that the notch in the plate is aligned with pin (33) .

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Illustration 16	g00619954

25. Install the spacer under cylinder (26) and install cylinder (26) in head (24) .

26. Install cylinder (27) and spring (28) .

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Illustration 17	g00619953

27. Use bolts (25) to install head (24) to pump (2). Tighten the bolts evenly to a torque of 71 ± 14 N·m (52 ± 10 lb ft).

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Illustration 18	g00619952

28. Install O-ring seals (23) on the compensator.

29. Install the O-ring seal and plug (17) on the compensator. Tighten the plug to a torque of 30.5 ± 1.5 N·m (23 ± 1 lb ft).

30. Install screw (22) in compensator plug (21) .

31. Install guide (18), spring (19), guide (20), and compensator plug (21) in the compensator.

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Illustration 19	g00619950

32. Install screw (16) in margin plug (15) .

33. Install guide (11), spring (12), spring stop pin (13), guide (14), and margin plug (15) in compensator (3) .

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Illustration 20	g00619949

34. Tighten locknuts (9) and (10) to a torque of 17 ± 3 N·m (150 ± 26 lb in).

Note: Refer to Systems Operation, Testing and Adjusting, SENR9424 for the correct procedure for adjusting the flow compensator.

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Illustration 21	g00619947

35. Put spools (5) and (7) in position in the compensator.

36. Install plugs (6) and (8). Tighten the plugs to a torque of 30.5 ± 1.5 N·m (22 ± 1 lb ft).

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Illustration 22	g00619942

37. Use bolts (4) to install compensator (3) on the pump. Tighten the bolts to a torque of 34 ± 3 N·m (25 ± 2 lb ft).

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Illustration 23	g00619940

38. Install O-ring seal (1) on pump (2) .

End By: Install the implement pump.