336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems Pressure Reducing Valve (Implement and Swing Priority) - Assemble Caterpillar


Pressure Reducing Valve (Implement and Swing Priority) - Assemble
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1.1. Assembly Procedure

Assembly Procedure



    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 (150 ± 27 lb in). 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.

Information System:

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