904B Wheel Loader Machine Systems Caterpillar


Pilot Valve (Joystick) - Disassemble

Usage:

904B B4L

Disassembly Procedure

Start By:

  1. Remove the valve. Refer to Disassembly and Assembly, "Pilot Valve (Joystick) - Remove".



    Illustration 1g01148056

  1. Remove cable strap (1) .



    Illustration 2g01148057

  1. Remove cable strap (4), bolts (2), and plate (3) .



    Illustration 3g01148058

  1. Remove bolt (5) and switch (6) .



    Illustration 4g01148059

  1. Loosen nut (7) .

  1. Remove handle assembly (8) .



    Illustration 5g01148060

  1. Remove nut (7), nut (9), retainer (10), and boot (11) .



    Illustration 6g01148062

  1. Remove screw (12) and cover (13) .



    Illustration 7g01148064

  1. Remove switch (14) and bolt (15) .



    Illustration 8g01148067

  1. Remove nut (16), washer (17), and lever (18) .



    Illustration 9g01148068

    ------ 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 bolt (19) and housing (20) .



    Illustration 10g01148070

  1. Remove O-ring seal (21) .



    Illustration 11g01148069

  1. Remove O-ring seals (22) .



    Illustration 12g01148071

  1. Remove springs (23) .



    Illustration 13g01148072

    ------ 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 swivel (24) .



    Illustration 14g01148073

  1. Remove plate (25) .



    Illustration 15g01148074

  1. Remove piston assemblies (26) .



    Illustration 16g01148077

  1. Remove bushing (27), O-ring seal (28), piston (29), retainer (30), spring (31), piston (32), and sleeve (33) .



    Illustration 17g01148075

  1. Remove spring (34) .

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