Front Brake Caliper Piston, FN-3

Front Brake Caliper Piston, FN-3

Special tools, testers and auxiliary items required

• Assembly paste (G 052 150 A2).

• Trim removal wedge (3409).

• Piston resetting tool (T10145).

Removing

- Force piston from brake caliper housing using compressed air.






• Place a wooden board into the recess of the caliper housing so it is not damaged.

- Remove seal.






- Use the trim removal wedge (3409) for this.

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

Installing

- Insert the inner seal in the brake caliper groove - arrow -.






- Press the protective cap onto the brake caliper housing so that it contacts the brake caliper housing all around.






- It should no longer be possible to remove the protective cap from the brake caliper housing by hand.

- Thinly coat piston and seal with assembly paste (G 052 150 A2) before inserting.

- Press the brake piston lightly on the protective cap.

Do not angle piston, to avoid damaging the seal sleeve.

- Blow the protective cap on with pressurized air (max. 3 bar). The protective cap will thereby jump over the brake piston.

- Press the brake pistons into the caliper using piston resetting tool (T10145).






Do not angle piston, to avoid damaging the seal sleeve.

• The inner sealing lip of the protective cap thereby slips into the groove on the piston.