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

Disassembly Procedure

Start By:

1. Remove the main control valve and the mounting plate. Refer to Disassembly and Assembly, "Main Control Valve and Mounting Plate - Remove" for 950G Wheel Loader and 962G Wheel Loader. Refer to Disassembly and Assembly, "Main Control Valve and Mounting Plate (Lift and Auxiliary) - Remove" for IT62G Integrated Toolcarrier.

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Illustration 1	g00339557

1. Remove two tubes (3) and two tubes (4) from diverter valve (5) .

2. Remove hose (2) from the pressure sensor.

3. Disconnect electrical connector (1) .

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Illustration 2	g00339558

4. Attach a hoist and a suitable lifting sling to diverter valve (5). The weight of the diverter valve is 52 kg (115 lb).

5. Remove eight bolts (6). Remove diverter valve (5) from the main control valve.

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Illustration 3	g00340181

6. Remove two tubes (7) and pipe (8) .

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Illustration 4	g00340182

7. Attach a hoist and a suitable lifting sling to main control valve (10). The weight of the main control valve is 68 kg (150 lb).

8. Remove three bolts (9). Remove main control valve (10) from the plate.

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Illustration 5	g00340188

9. Put identification marks on relief valve (11) and on relief valve (12). Remove the two relief valves from the main control valve.

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Illustration 6	g00340189

10. Disassemble relief valves (11) and (12) :

    1. Remove O-ring seals (16) from the valve body.

    2. Loosen locknut (13) and remove retainer assembly (17). Remove O-ring seal (18) from retainer assembly (17) .

    3. Remove shim (14), spring (15), plate (19) and valve (20) from the valve body.

Note: IT62G refer to Step 13. 950G and 962G refer to Step 11.

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Illustration 7	g00340298

11. Remove main relief valve (21) from the main control valve.

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Illustration 8	g00340300

12. Disassemble main relief valve (21) :

    1. Remove O-ring seals (22) from the valve body.

    2. Remove cap (27) from the valve body. Remove O-ring seal (23) from cap (27). If necessary, loosen locknut (25) and remove retainer assembly (29) from the cap.

    3. Remove shim (28), spring (24) and valve (26) from the valve body.

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Illustration 9	g00484883

13. Remove plug (21) .

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Illustration 10	g00340775

14. Remove three plugs (30) and makeup valve (31) from the main control valve.

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Illustration 11	g00484850

15. Remove four bolts (33) and two housings (32). Remove the O-ring seals from the housings.

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Illustration 12	g00484853

16. Remove four bolts (34) and two housings (35). Remove the O-ring seals from the housings.

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Illustration 13	g00484854

17. Remove tilt valve spool assembly (36) and lift valve spool assembly (37) .

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Illustration 14	g00340816

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Illustration 15	g00484855

18. Disassemble valve spool assemblies (36) and (37). Remove bolt (46), shim (45), retainer (44), shim (43), spring (42), spring (41), retainer (40) and shim (39) from spool (38) .