336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems Load Control Valve (Boom Cylinder) - Disassemble Caterpillar

Disassembly Procedure

Start By:

1. Remove the load control valve (boom cylinder).

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Illustration 1	g01375860

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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. Remove plug (9), O-ring seal (8), spacers (7), guide (6), spring (5), retainer (4), and poppet (3), and poppet (2) from load control valve (1).
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   Illustration 2	g01375861

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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.

2. Remove plug assembly (13), O-ring seal (12), spring (11), and valve (10) from load control valve (1).
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   Illustration 3	g01375864

3. Remove relief valve (14) from load control valve (1).
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   Illustration 4	g02152273

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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.

4. Remove O-ring seals (16), (17), (19), (20), and (23). Remove ring seals (18) and (21).
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   Illustration 5	g02152274

5. Remove plug assemblies (26), O-ring seals (25), and orifices (24) from load control valve (1).
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   Illustration 6	g02152277

6. Remove plug assembly (37), O-ring seal (36), flow control valve (35), O-ring seal (34), O-ring seal (33), ring (32), pin (31), piston (30), shims (29), guide assembly (28), and O-ring seal (27) from load control valve (1).