950G and 962G Wheel Loaders and IT62G Integrated Toolcarrier Machine Systems Caterpillar

Assembly Procedure

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

Note: Apply clean hydraulic oil to all valve components during assembly.

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Illustration 1	g00452938

1. Install three O-ring seals (44) .

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Illustration 2	g00452937

2. Install manifold assembly (43), the washers, and three bolts (42) .

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Illustration 3	g00452936

3. Install coil assembly (40) and nut (41). The torque for nut (41) is 9.5 ± 1.5 N·m (84 ± 13 lb in).

4. Install O-ring seal (39), O-ring seal (38), and O-ring seal (37) on solenoid valve (36) .

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Illustration 4	g00452935

5. Install solenoid valve (36) in the pilot valve. The torque for solenoid valve (36) is 20 ± 5 N·m (15 ± 4 lb ft).

6. Connect electrical connector (35). Repeat Steps 5 and 6 for the remaining five solenoid valves.

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Illustration 5	g00452934

7. Install O-ring seal (34), backup ring (33), and O-ring seal (32) on cartridge assembly (31) .

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Illustration 6	g00452933

8. Install cartridge assembly (31). The torque for cartridge assembly (31) is 25 ± 5 N·m (18 ± 4 lb ft).

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Illustration 7	g00452932

9. Install coil assembly (29), the washer, and nut (30). The torque for nut (30) is 14 ± 5 N·m (10 ± 4 lb ft).

10. Connect electrical connector (28) .

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Illustration 8	g00452931

11. Install backup ring (27), O-ring seal (26), O-ring seal (25), backup ring (24), and O-ring seal (23) on sequence valve (22) .

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Illustration 9	g00452930

12. Install sequence valve (22) in the pilot valve. The torque for sequence valve (22) is 60 ± 7 N·m (44 ± 5 lb ft).

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Illustration 10	g00452929

13. Install backup ring (21), O-ring seal (20), O-ring seal (19), backup ring (18), and O-ring seal (17) on shuttle valve (6) .

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Illustration 11	g00452928

14. Install backup ring (16), O-ring seal (15), O-ring seal (14), backup ring (13), and O-ring seal (12) on pressure reducing valve (5) .

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Illustration 12	g00452927

15. Install O-ring seal (11), backup ring (10), O-ring seal (9), backup ring (8), and O-ring seal (7) on pressure reducing valve (4) .

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Illustration 13	g00452926

16. Install shuttle valve (6). The torque for shuttle valve (6) is 60 ± 7 N·m (44 ± 5 lb ft).

17. Install pressure reducing valve (5). The torque for pressure reducing valve (5) is 60 ± 7 N·m (44 ± 5 lb ft).

18. Install pressure reducing valve (4). The torque for pressure reducing valve (4) is 60 ± 7 N·m (44 ± 5 lb ft).

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Illustration 14	g00452925

19. Install pilot valve (3). The weight of pilot valve (3) is 23 kg (50 lb).

20. Install three nuts and three bolts (2) that hold the pilot valve to the mounting plate.

21. Connect eight hydraulic tubes (1) to pilot valve (3) .

End By: Install the main control valve and the mounting plate. Refer to Disassembly and Assembly, "Main Control Valve and Mounting (Including Mounting Plate) - Install".