Front Brake Caliper Piston (FN-3), Removing and Installing

Front brake caliper piston, removing and installing
Special tools and equipment





^ 3409 wedge
^ G 052 150 A2 brake cylinder paste
^ T10145 piston resetting tool

Removing





- Force piston from brake caliper housing using compressed air.

Note: Place a wooden board into the recess of the caliper housing to catch the piston so it is not damaged.





- Remove seal.
- Use 3409 wedge for this.

Note: When removing, make sure that surface of cylinder is not damaged.

Installing
- Use only appropriate solvent to clean surfaces of piston and protective seal, then dry.
- Apply thin coat of brake cylinder paste G 052 150 A2 to piston and protective seal before installing.





- Place dust seal with outer sealing lip on piston.





- Using 3409 wedge, insert inner sealing lip into cylinder groove.

Note: Hold piston in front of caliper housing for this procedure.





- Press piston into brake caliper housing using piston resetting tool.

Note: Outer sealing lip will then engage in piston groove.