Brake Caliper: Description and Operation

DISC BRAKE CALIPER ASSEMBLY
This caliper has a single bore and is mounted to the steering knuckle with two mounting bolts. Hydraulic pressure, created by pressing the brake pedal, is converted by the caliper to a stopping force. This force acts equally against the piston and the bottom of the caliper bore. It moves the piston outward and slides the caliper inward, resulting in a clamping action on the rotor. This clamping action forces the linings against the rotor, creating friction to stop the vehicle.

Important:
- Replace all components included in the repair kits used to service the caliper.
- Lubricate the rubber parts with clean brake fluid to ease assembly.
- Do not use lubricated shop air on brake parts because damage to the rubber components may result.
- If any hydraulic component is removed or disconnected, it may be necessary to bleed all or part of the brake system. Brake Bleeding
- Replace the shoes in axle sets only.
- The torque values specified are for dry, unlubricated fasteners.
- Perform the service operations on a clean bench, free from all mineral oil materials.