Disassembly Procedure
Start By:
- Remove the control valve. Refer to Disassembly and Assembly, "Control Valve (Work Tool) - Remove".
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
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| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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| Illustration 1 | g01332398 |
- Remove hose (1) .
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| Illustration 2 | g01332399 |
- Remove nuts (2) and cartridge assembly (3) .
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| Illustration 3 | g01332400 |
- Remove O-ring seals (4) from cartridge assemblies (3) .
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| Illustration 4 | g01332409 |
- Remove bolt (7), retainer (6), and solenoid (5) .
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| Illustration 5 | g01332411 |
- Remove O-ring seals (8) from solenoid (5) .
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| Illustration 6 | g01332421 |
- Remove nuts (9) and coil assemblies (10) .
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| Illustration 7 | g01332423 |
- Remove cartridge assemblies (11) .
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| Illustration 8 | g01332426 |
- Remove O-ring seals (12) from cartridge assemblies (11) .
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| Illustration 9 | g01332430 |
- Remove bolt (13), retainer (14), and solenoid (15) .
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| Illustration 10 | g01332609 |
- Remove O-ring seals (16) from solenoid (15) .
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| Illustration 11 | g01332620 |
- Remove nut (18) and coil assembly (17) .
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| Illustration 12 | g01332621 |
- Remove O-ring seals (19) from coil assembly (17) .
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| Illustration 13 | g01332622 |
- Remove cartridge assembly (20) .
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| Illustration 14 | g01332628 |
- Remove O-ring seals (21), backup ring (22), and screen (23) from cartridge assembly (20) .
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| Illustration 15 | g01332630 |
- Reposition the control valve, as shown.
- Remove relief valves (24) and (25) .
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| Illustration 16 | g01332649 |
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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. |
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- Reposition the control valve, as shown.
- Remove plug (26) and the O-ring seal. Remove spool assembly (27). Remove plug (28) and the O-ring seal.
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| Illustration 17 | g01332699 |
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| Illustration 18 | g01332700 |
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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. |
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- Remove plug (29) and the O-ring seal. Remove spring (30), retainer (31), and spool (32). Remove plug (35) and the O-ring seal. Remove spring (34) and retainer (33) .
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| Illustration 19 | g01332702 |
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| Illustration 20 | g01332813 |
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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. |
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- Remove plug (36) and the O-ring seal. Remove spring (37) and retainer (38). Remove plug (40) and the O-ring seal. Remove spool assembly (39) .
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| Illustration 21 | g01332821 |
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| Illustration 22 | g01332823 |
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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. |
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- Remove plug (41) and the O-ring seal. Remove spring (42), retainer (43), and spool (44). Remove plug (47) and the O-ring seal. Remove spring (46) and retainer (45) .
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| Illustration 23 | g01332824 |
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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. |
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- Remove plug (48) and the O-ring seal. Remove spring (49), valve (50), spring (51), and valve (52). Repeat for the remaining valve assemblies.
