980G Wheel Loader Machine Systems Caterpillar

Assembly Procedure

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Illustration 1	g01074420

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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

1. Install spring (22), spring (23), retainer (24), nut (25), nut (26), and slug (21) on stem (20). Tighten nut (26) and nut (25) until the measurement that was recorded during disassembly is obtained.
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   Illustration 2	g00529133

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   Illustration 3	g00529124

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   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

2. Install spool assembly (20).

3. Install sleeve (18), nut (17) and plunger (19). Adjust the sleeve and the nut until the measurement that was recorded during disassembly is obtained.

4. Repeat steps 1 through 3 for the installation of spool assembly (27).

5. Install O-ring seal (16).
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   Illustration 4	g00529092

6. Install bearing (15) in the cover.
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   Illustration 5	g00529091

7. Use Tooling (B) in order to install bearing (13) and retaining ring (14) on the shaft.
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   Illustration 6	g00529083

8. Install shaft assembly (8) and actuator (10).
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   Illustration 7	g00529080

9. Use Tooling (A) in order to install retainer ring (12).
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   Illustration 8	g00529067

10. Align the key on shaft (8) with the alignment mark that was made during the disassembly procedure. Install pin (9) in actuator (10) and shaft (8).
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    Illustration 9	g00529078

11. Install lip seal (11).
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    Illustration 10	g00529059

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    Illustration 11	g00529060

12. Install O-ring seal (7), retainer assembly (6) and nut (5). Adjust the retainer and the nut until the measurement that was recorded during disassembly is obtained.
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    Illustration 12	g00529035

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    Illustration 13	g01074416

13. Install actuator assembly (4) and bolts (3). Tighten the bolts to a torque of 25 ± 6 N·m (18 ± 4 lb ft).
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    Illustration 14	g00529032

14. Install check valves (2).

15. Install the mounting bracket (1).

End By:

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