FN 3 Brake Caliper Piston (Front)

FN 3 Brake Caliper Piston

Special tools, testers and auxiliary items required

• Disassembly wedge (3409)

• Piston resetting tool (T10145)

• Assembly Device For Protective Cap (T10146/6)

Removing

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

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






- Use (3409) to remove protective cap from brake caliper.






- Remove seal using (3409).






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

Installing

Install in reverse order of removal. Note the following:

Cleaning


Do not blow brake system using compressed air, the dust produced is harmful to health!

• Use only appropriate solvents for cleaning brake system.

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

- Coat the piston and seal lightly with assembly paste (G 052 150 A2) before installing.

- Install sealing ring in brake caliper.

- Install the cap - A - into the tool.






1. Assembly Device For Protective Cap (T10146/6)


- Press the cap onto the brake caliper so that it is touching the brake caliper all the way around.






1. (T10146/6)

2. (T10145)


Make sure the cap fits correctly.






- It must not be possible to pull the cap off the brake caliper by hand.

- Gently push the piston on the cap.

- Lock the piston in this position.






2 (3409)


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

- Blow compressed air on the cap (maximum 3 bar) - 1 -. This will force the cap onto the piston.

- Push the piston into the brake caliper.






1. (T10145)


The outer seal lip of the cap thereby slips into the groove on the piston.