Remove (install) front fixed calliper (34 11 020).
Remove brake pads.
Extract clamp rings (1) and rubber protecting caps (2).


Siehe auch 34 11 020
11552001 - click to zoom
 
Hold one piston in place with the piston return pliers.
Place a hardwood or felt pad between the calliper jaws.
Press out the piston by applying a compressed air supply
to the brake line connecting hole.
Warning: Observe great care! A compressed air supply at
10 atü (140 psi) will develop a force of approx. 250 kp
(550 Ibs.).

11552002 - click to zoom
 
Carefully remove the sealing rings with a plastic rod.
When installing: Clean all parts with alcohol and coat with
ATE brake cylinder paste before installing.
Warning: Do not tilt the piston when inserting.

11552003 - click to zoom
 
Use new sealing rings.
Clean the sealing faces between the two halves of the
calliper with alcohol.

11552004 - click to zoom
 
Do not separate the two halves of the calliper unless a leak
is detected.
Remove the expansion bolts.
When installing: Do not re-use the expansion bolts.
Tightening sequence 1 ÷ 4.

11552005 - click to zoom