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Disassembly (Power Cylinder)

  1. Scribe mark on housing for reassembly. Remove master cylinder, if not done during removal. Attach front housing to suitable holding fixture (J22805). Separate housing using a suitable spanner wrench (J9504). Press down and turn counterclockwise.
    CAUTION: Separate slowly because unit is under internal pressure. Ensure no pressure is put on plastic power piston.
  2. Remove power piston return spring (retainer plate may come out with spring). If defective, remove check valve and grommet. Remove front housing seal. If equipped, remove push rod clevis and lock nut, from rear housing. Remove boot, felt silencer, power piston group, and seal from center of rear housing.
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