980G Wheel Loader Machine Systems Caterpillar

Disassembly Procedure

Start By:

1. Remove the steering pilot valve. Refer to Disassembly and Assembly, "Pilot Valve (Steering) - Remove".

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Illustration 1	g00529032

1. Remove mounting bracket (1).

2. Remove check valves (2).
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   Illustration 2	g01074416

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   Illustration 3	g00529035

3. Remove bolts (3) and actuator assembly (4).
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   Illustration 4	g00529060

4. Loosen nut (5). Remove retainer assembly (6).
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   Illustration 5	g00529059

5. Remove O-ring seal (7).
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   Illustration 6	g00529067

6. Mark the position of the key on shaft (8) for assembly purposes. Remove pin (9) that holds actuator (10) to shaft (8).
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   Illustration 7	g00529078

7. Remove lip seal (11).
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   Illustration 8	g00529080

8. Use Tooling (A) in order to remove retainer ring (12).
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   Illustration 9	g00529083

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   Illustration 10	g01074418

9. Remove shaft assembly (8) and actuator (10).
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   Illustration 11	g00529091

10. Use Tooling (B) in order to remove retaining ring (14) and bearing (13) from the shaft.
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    Illustration 12	g00529092

11. Remove bearing (15) from the cover.
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    Illustration 13	g00529124

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

12. Measure the distance from nut face (17) to the end of sleeve (18). Record this measurement for assembly purposes.

13. Loosen nut (17). Remove sleeve (18), nut (17) and plunger (19). Remove O-ring seal (16).
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    Illustration 14	g01074420

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    Illustration 15	g00529133

14. Measure the distance from the nut face to the end of the threads on stem (20). Record this measurement for assembly purposes.
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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

15. Remove nut (26), nut (25), retainer (24), spring (23), spring (22) and slug (21) from stem (20).

16. Repeat steps 12 through 15 for the removal of spool assembly (27).