Front

Brake Caliper Piston

Removing

Special tools, testers and auxiliary items required

• Disassembly wedge (3409)

• Piston resetting tool (T10145)

• Assembly paste (G 052 150 A2)

- Force piston from brake caliper housing using compressed air - arrow -.





• 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

- The surface of the piston and seal must only be cleaned with mineral spirits and then dried.

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

- Insert 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 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 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.