Front Brake Caliper Piston (HP-2), Removing and Installing

Front brake caliper piston, removing and installing

Special tools and equipment





^ 3409 wedge
^ G 052 150 A2 brake cylinder paste





^ T10145 Piston resetting tool

Removing
Fig. 1 Pressing pistons from brake caliper housing using compressed air (individually)





Note:
^ Insert brake pad -b- in piston. Place a wooden board -a- into the recess of the caliper housing to catch the pistons so they are not damaged.
^ Only one piston can be pressed out at a time. Hold the other piston securely in brake caliper housing using piston resetting tool.

Fig. 2 Removing sealing rings using 3409 wedge





Note: When removing, make sure that surface of cylinder is not damaged.

Installing
- Apply thin coat of brake cylinder paste G 052 150 A2 to piston and protective seal before installing.
- Use only appropriate solvent to clean surfaces of piston and protective seal, then dry.





Fig. 3 Pulling dust seal on with outer sealing lip on piston

Fig. 4 Inserting inner sealing lip of dust seal using 3409 wedge





Note: Hold piston in front of caliper housing for this procedure.

Fig. 5 Pressing piston into brake caliper housing using piston resetting tool





Note:
^ Insert piston in hole by hand and insert brake pad -a- in piston before inserting in brake caliper housing.
^ Outer sealing lip of dust seal will then engage in piston groove.