Drum Brake System: Description and Operation
DESCRIPTIONRear drum brakes are non-servo, leading/trailing shoe design. Brake shoe and linings are applied against a rotating brake drum by the wheel cylinder. An incremental self-adjuster mechanism is actuated whenever sufficient wear occurs. Brake adjustment takes place in forward or reverse braking.
COMPONENTS
^ Brake drum
^ Brake shoes and linings
^ Brake shoe retracting springs
^ Brake shoe hold down springs
^ Brake shoe hold down spring pins
^ wheel cylinders
^ Brake strut and quadrant
^ Brake backing plates
^ parking brake cable and conduits