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


Pressure Reducing Valve - Assemble
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1.1. Assembly Procedure

Assembly Procedure


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 1g01211513

  1. Install O-ring seals (16) to plugs (15).


    Illustration 2g01211512

  2. Install plugs (15). Tighten plugs (15) to a torque of 74 ± 5 N·m (54 ± 4 lb ft).


    Illustration 3g01211511

  3. Install seat (11) and nut (14) to plug (13). Tighten nut (14) to a torque of 17 ± 3 N·m (13 ± 2 lb ft). Install O-ring seal (12) to plug (13). Repeat for the remaining plug (13).


    Illustration 4g01211510

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

    Improper assembly of parts that are spring loaded can cause bodily injury.

    To prevent possible injury, follow the established assembly procedure and wear protective equipment.


  4. Install spool (6), seat (7), stopper (8), spring (9), and plug assembly (10). Tighten plug assembly (10) to a torque of 128 ± 10 N·m (94 ± 7 lb ft).


    Illustration 5g01211507


    Illustration 6g01211508

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

    Improper assembly of parts that are spring loaded can cause bodily injury.

    To prevent possible injury, follow the established assembly procedure and wear protective equipment.


  5. Install spool (2), seat (3), stopper (4), spring (5), and plug assembly (1). Tighten plug assembly (1) to a torque of 128 ± 10 N·m (94 ± 7 lb ft).

End By:

  1. Install the pressure reducing valve.

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