320D2 GC Excavator Machine Systems Pressure Reducing Valve - Disassemble Caterpillar


Pressure Reducing Valve - Disassemble
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1.1. Disassembly Procedure

Disassembly Procedure

Start By:

  1. Remove the pressure reducing valve.


NOTICE

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.



NOTICE

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.




    Illustration 1g01211507


    Illustration 2g01211508

    ------ WARNING! ------

    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 assembly (1).

  2. Remove spring (5), stopper (4), seat (3), and spool (2).


    Illustration 3g01211510

    ------ WARNING! ------

    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.


  3. Remove plug assembly (10), spring (9), stopper (8), seat (7), and spool (6).


    Illustration 4g01211511

  4. Remove O-ring seal (12), nut (14), and seat (11) from plug (13). Repeat for the remaining plug (13).


    Illustration 5g01211512

  5. Remove plugs (15).


    Illustration 6g01211513

  6. Remove O-ring seals (16) from plugs (15).

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