Piston For Front Brake Caliper, Removing and Installing

Brake Calipers FN3

Piston for front brake caliper, removing and installing





Special tools and workshop equipment required

Removing





- Force piston out of brake caliper housing using compressed air.

Note: Place a piece of wood in the recess to prevent damaging the piston.





- Take out seal.
- Use removal wedge 3409 for this step.

Note: Ensure that the surface of the cylinder is not damaged during removal.

Installing





- Insert O-ring
- Use removal wedge 3409 for this step.





- Place protective cap with the outer sealing lip on the piston.
- The surface of the piston and seal should be cleaned using only methylated spirits and then dried.
- Thinly coat piston and seal with assembly paste G 052 150 A2 before inserting.





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

Note: When doing this hold piston in front of brake caliper housing.





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

Note: The outer sealing lip of the protective cap will then locate in the groove on the piston.