FS III Front Brake Calipers

Notes:
^ Install all parts supplied in the repair kit.
^ New brake calipers are filled with brake fluid and are pre-bled.
^ Apply a thin coat of lubricant, Part No. G 052 150A2 to brake cylinders, pistons and seals.





1 Dust cap
2 Bleeder valve
^ Apply thin coat of assembly lubricant G 052 1 50 A2 to threads before installing
3 Cap
^ Install in mounting bushing
4 Guide pin, 28 Nm (21 ft. lbs.)
^ Removing and installing
5 Mounting bushing
^ Install in brake caliper housing
6 Brake caliper housing
7 Protective seal
8 Piston
^ Before installing apply a thin coat of assembly lubricant, Part No. G 052 150 A2, to piston
9 Piston seal

Front brake caliper piston, removing and installing
Special tools and equipment required





^ 3409 Wedge
^ Piston resetting tool

Removing





^ Force piston out of brake caliper housing using compressed air.

Note: Place a piece of wood in the recess to prevent damaging the piston.





Remove piston seal using wedge 3409.

Note: When removing piston seal make sure that the cylinder bore is not damaged.

Installing
^ Lubricate piston, piston seal and cylinder bore lightly with assembly lubricant G 052 150 A2
^ Install new piston seal in caliper.





^ Place protective seal with outer sealing lip on piston.





^ Hold piston in front of caliper and insert inner sealing lip into groove in cylinder using wedge 3409.





^ Press piston into brake caliper housing using piston resetting tool.
- The protective seal outer sealing lip must slip into the piston groove.