Brake Caliper: Description and Operation

Disc Brake Caliper Assembly-3257 Generation 2 Series:

The caliper has a single piston and is mounted to the support bracket by two mounting bolts. The caliper assembly slides on the two mounting bolts. Upon brake application, fluid pressure against the piston forces the inboard shoe and lining assembly against the inboard side of the disc. This action causes the caliper assembly to slide until the outboard lining comes into contact with the disc. As pressure builds up the linings are pressed against the disc with increased force.