Pontiac G5 Rear Brake Drum

Drum brakes are brakes that use friction from a set of shoes or pads that forces a rotary cylindrical part known as a brake drum outward. The vital component of drum brakes is the brake drums.  Along with the brake foot,  the brake drum forms friction that decelerates the rotation of the wheel.

We would cause the brake shoe to expand in both directions. Since the brake lining of the shoe would contact the drum's inner surface, friction would be created between the brake shoe and the drum and stop the vehicle from moving. Once the brake pedal is pressed, it will compress the fluid in the master cylinder and then cause the wheel cylinder piston to expand outwards. Then again the brake would be able to be applied. There would be a presence at the bottom of the self-adjusting screw used to ensure a small distance between the drum and the brake shoe. Once the brake shoe lining is worn out, the distance between the drum and the brake shoe decreases, the adjuster is adjusted to maintain the minimum gap at that point.