Start By:
- Remove the control manifold (pilot oil).
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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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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Keep all parts clean from contaminants. Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components. To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover any disassembled components and clean them properly before assembly. Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination. |
- Remove bolts (1) and valve assembly (2).
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Illustration 2 g01211571 - Remove O-ring seals (3).
- Repeat Steps 1 and 2 for the remaining valve assemblies.
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Illustration 3 g01211572 Show/hide table
Illustration 4 g01211575 Show/hide table
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.
- Remove plugs (4) and (5).
- Remove spool (6).
- Remove spring (8) and spool (7).
- Remove O-ring seals (9) from plugs (4) and (5).
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Illustration 5 g01211576 - Remove spring (10).
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| Illustration 1 | g01211570 |
