FS III Caliper

Brake Caliper Piston

Special tools, testers and auxiliary items required

• Trim removal wedge (3409)

• Piston resetting tool (T 10145)

Removing

- Force the piston from the brake caliper using compressed air.

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





- Remove the seal using the (3409).





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

Installing

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

- Coat the piston and seal with a thin layer of assembly paste (G 052 150 A2) before installing.

- Install the sealing ring in the brake caliper.

- Place the protective cap with outer sealing lip onto the piston.





- Using the (3409), insert the inner sealing lip into the cylinder groove.

Hold the piston in front of the brake caliper for this procedure.





- Press the piston into the brake caliper using the (T 10145).





Outer sealing lip of the protective cap will then engage in the piston groove.