FN 3 Brake Caliper

Front Caliper Piston, Removing And Installing
Special Tools And Equipment





^ 3409 Wedge
^ Piston resetting tool

Removing





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

CAUTION!
^ Place a piece of wood in the recess to prevent damaging the piston.
^ Use only enough air pressure to force piston out.

WARNING!
^ Always wear safety goggles when working with compressed air.





- Remove seal using wedge 3409.

CAUTION!
^ When removing, use care to ensure that the cylinder bore is not damaged.

Installing
- Install new piston seal in caliper.
- Lubricate piston and cylinder bore lightly using brake fluid.





- Install dust boot 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 outer sealing lip of the dust boot must slip into the piston groove.