777G Off-Highway Truck Power Train Caterpillar

Assembly Procedure

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Illustration 1	g01326294

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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.

1. Install valve (31), spacer (32), spring (33), and cap (34). Tighten cap (34) to a torque of 85 ± 10 N·m (63 ± 7 lb ft).
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   Illustration 2	g01326281

2. Install relief valve (29).
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   Illustration 3	g01326267

3. Install plate (28). Install bolts (27).
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   Illustration 4	g01326213

4. Install sensor (25). Install drains (24) and (26). Tighten drains (24) and (26) to a torque of 35 ± 8 N·m (26 ± 6 lb ft).
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   Illustration 5	g01326185

5. Install modulating valve (22). Install bolts (23). Install hose assembly (21).

6. Repeat Step 5 for the remaining modulating valve.
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   Illustration 6	g01326059

7. Install harness assembly (19). Connect harness assembly (19). Install cable straps (20).
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   Illustration 7	g01326056

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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.

8. Install ball (15), spring (16), and retainer (17), into spool (11). Use Tooling (B) in order to install retaining ring (18).
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   Illustration 8	g01326054

9. Install slug (14) into spool assembly (11).
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   Illustration 9	g01326052

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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.

10. Install spool assembly (11), spring (12), and load piston (13).
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    Illustration 10	g01326046

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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.

11. Position cover (10). Install Tooling (A). Tighten Tooling (A) until bolts (9) can be installed. Tighten bolts (9). Remove Tooling (A).
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    Illustration 11	g01326037

12. Install O-ring seal (8) into cover (7).
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    Illustration 12	g01326035

13. Install cover (7).
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    Illustration 13	g01326022

14. Position relief valve (6). Install bolts (5). Install hose assemblies (4) and (3).
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    Illustration 14	g01326016

15. Install O-ring seals (2).
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    Illustration 15	g01326000

16. Install sleeve (1).

End By:

1. Install the transmission hydraulic control. Refer to Disassembly and Assembly, "Transmission Hydraulic Control - Install".