3406E On-Highway Engine Caterpillar


Rocker Arm - Disassemble

Usage:

3406E 1MM

Disassembly Procedure

Start By:

  1. Remove the rocker arms and the rocker shaft. Refer to Disassembly and Assembly, "Rocker Arm and Shaft - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g01028860

  1. Remove valve rocker arms (7) and unit injector rocker arm (2) from rocker shaft (3).

    Note: Check the condition of all components. Replace any worn components or damaged components with new parts.

    Note: Do not reuse the O-ring seals on the rocker arm adjustment screws if the buttons have been removed from the adjustment screws.

  2. Remove button (6) from adjuster screw (5) in valve rocker arm (7).

  3. Remove button (4) from adjuster screw (1) in unit injector rocker arm (2).

  4. Repeat Steps 1 through 3 for the remaining rocker arm assemblies.

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