Overhaul

Left Or Right Front-brake Caliper

Note: Use suitable repair kit.





Take off plastic caps (1).
Unscrew guide bolts (2).

Installation:
Only clean guide screws; do not grease. Check guide screws and replace if necessary.
Tightening torque, refer to Brakes, Specification.





Dismantle brake caliper and remove brake linings.

Installation:
Before installing springs (4), press out brake lining completely.





Press out piston with compressed air applied through connection bore.
Place a liner (hardwood, hard felt, etc.) in caliper recess to protect piston.

Caution: 10 bar compressed air result in a force of up to approx. 2,800 N.





Check guide sleeves (5), fitting repair-kit guide sleeve if necessary.





Remove sealing ring carefully with a plastic needle.
Clean cylinder bores and parts with alcohol and dry wit compressed air.
Thoroughly inspect cylinder bore, piston and flange surfaces. Machining of cylinders and pistons is not permitted.





Installation:
Lightly coat cylinder bore, piston and sealing sleeve with Ate brake cylinder paste.
Install sealing cover in rear annular groove of cylinder bore.
Press in piston with a hardwood board.

Caution: Do not tilt piston.





Press on dust cover evenly up to stop with special tool 341 131.

Installation:
Keep area between dust cover and brake caliper housing dry and do not bring into contact with Ate brake cylinder paste or brake fluid to ensure proper seating of dust cover.
Ensure proper seating of dust cover on piston.