Brake Caliper: Description and Operation

The caliper assembly consists of a pin sliding caliper housing, inner and outer shoe and lining assemblies and a single piston. The caliper slides on two pins which also act as attaching bolts between caliper and the combination anchor plate and spindle. The outer brake shoe and lining assembly is longer than the inner brake shoe and lining assembly. Inner and outer shoe and lining assemblies are attached to the caliper by spring clips riveted to the shoe surfaces. The inner shoe is attached to the caliper by installing the spring clip to the inside of the caliper piston. The outer shoe clips directly to the caliper housing. A wear indicator is incorporated, which emits a noise when the lining is worn to a point for necessary replacement. Lefthand and righthand inner and outer shoes are not interchangeable.