34 11 552 Overhauling Left or Right Front Brake Caliper (Brake Caliper Removed)

34 11 552 Overhauling left or right front brake caliper (brake caliper removed)

Special tools required:





Warning!
In the following operation, large forces occur at the brake caliper piston (up to more than 2800 N).
Danger of injury!





Note:
Use repair kit.





Check guide sleeves (1). If necessary, fit repair kit guide sleeve.





Carefully force piston out through connecting bore (1) with compressed air.

To protect piston, place a protective plate (2) (e.g. hard wood or hardened felt) in calliper recess.

Do not grip piston with fingers - pinch hazard!





Press off dust boot (1).





Carefully remove sealing ring (1) special tool 00 9 316.

Clean cylinder bores and parts with spirits and dry with compressed air.

Thoroughly inspect cylinder bore, piston and flange surfaces for damage. Machining of cylinders and pistons is not permitted.

Install new sealing ring.

Installation note:
Apply a light coat of Ate brake cylinder paste to cylinder bore, piston and sealing ring.





Fit dust boot (1) in annular groove of piston (2).

Important!
Do not twist brake piston.

Press piston into cylinder bore.

Evenly press dust boot (1) onto brake caliper housing (3) to the limit position.

Installation note:
The area between the dust boot and the brake caliper housing (3) must be kept dry. It must not come into contact with Ate brake cylinder paste or brake fluid so as to ensure that the dust boot is perfectly fitted.