583R Pipelayer Power Train Caterpillar

Disassembly Procedure

Start By:

1. Separate final drives, steering clutches, and brakes.

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Illustration 1	g00502912

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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.

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NOTICE
The brake contains springs that are under compression. The following steps must be followed exactly in order to disassemble the brake. Do not remove bolts (2) until bolts (3) have been slowly loosened and removed.

1. Remove the four bolts, the washers, and plate (1) from the steering clutch and brake assembly. Do not remove bolts (2) at this time.

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Illustration 2	g00502913

2. Install Tooling (A) and attach a hoist. Remove brake (4) from steering clutch (5). The weight of the brake is 159 kg (350 lb).

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Illustration 3	g00502915

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NOTICE
Be sure that bolts (2) are tight before bolts (3) are removed. Bolts (3) are long enough to release the spring pressure behind retainer (6) if bolts (2) are in place and tight.

3. Turn over brake (4). Evenly loosen ten bolts (3) in order to release the spring pressure behind retainer (6). Remove bolts (3) and retainer (6) .

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Illustration 4	g00502917

4. Remove six discs (7) and the five plates from brake housing (4) .

5. Remove O-ring seal (8) from the housing.

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Illustration 5	g00502918

6. Turn over the brake and install Tooling (A). Remove seven bolts (2) and the washers. Use a soft hammer to remove brake housing (4) from the retainer. The weight of brake housing (4) is 73 kg (161 lb).

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Illustration 6	g00502919

7. Remove ring (9), two springs (11), and ring (12) from retainer (10) .

8. Remove piston (13) from retainer (10) .

9. Remove the seal ring from the inner diameter of piston (13) .

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Illustration 7	g00502920

10. Remove seal ring (15) from retainer (10) .

11. Remove two ball bearings (14) from each side of retainer (10) .

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Illustration 8	g00502921

12. Remove two O-ring seals (16) from the brake housing.

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Illustration 9	g00502922

13. The weight of the steering clutch is 159 kg (350 lb). Remove four bolts (18) and the washers. Remove hub (17) .

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Illustration 10	g00502923

14. Use Tool (B) and remove retaining ring (23) .

15. Remove bearing (19) and plate (20) from the steering clutch.

16. Remove ten bolts and washers (21) and remove retainer (22) .

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Illustration 11	g00502924

17. Remove six discs (24) and the five plates from housing (25) .

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Illustration 12	g00502926

18. Install Tooling (C) in the piston. Remove piston (26) from the housing. The weight of piston (26) is 19.1 kg (42 lb).

19. Remove the seal ring from the inner diameter of piston (26) .

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Illustration 13	g00502927

20. Install Tooling (A) and attach a hoist. Raise housing (25) and hub assembly (27) together and remove the wood blocks. The weight of housing (25) is 33.6 kg (74 lb). The weight of hub assembly (27) is 21 kg (46 lb).

21. Lower housing (23) and remove hub assembly (27) .

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Illustration 14	g00502928

22. Turn over housing (25) and remove ring (28) .

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Illustration 15	g00502930

23. Use Tool (B) and remove retaining ring (29) from hub assembly (27) .

24. Remove three seal rings (30) from the hub assembly.

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Illustration 16	g00502932

25. Remove O-ring seal (32) from the hub assembly.

26. Use Tooling (D) and a press to remove plate (31) from the hub assembly.