Drum Brake Working

Bolted to the wheel hub and spins with the wheel.

Drumband anak tk. As the brake pedal is pressed it compresses the fluid in the master cylinder and allows the piston of the wheel. The outward motion of the piston of wheel cylinder forces the brake shoe outward against the brake drum. Drum brakes also have self adjusting devices that should keep the drum brakes properly adjusted.

Pulling left on the next brake application. The friction between the brake linings and the drum causes the drum to stop rotating. When you hit the brake pedal the piston pushes the brake shoes against the drum.

Ok ive been working on brakes for 47years. The shoe consists of a metal backing and a friction material pad that contacts the drum and causes the wheel to slow and stop. Each piston is driven against one of the two long curved brake shoes forcing each shoe against the druma drum shaped housing that is coupled to the wheel via the lug nuts.

Figure 5 shows only the parts that provide stopping power. This is what you see when you look at an assembled drum brake and is the component upon which braking force is applied to slow or stop the car. When you press the brake pedal the cam turns.

Shoes press against a spinning surface. As the brake shoe lining touches the inner. Drum brakes work on the same principle as disc brakes.

Working of drum brakes 1. When you release the brake pedal the retracting springs bring the brake shoes back to their original position. As you drive around notice how your total brake system performs and ask yourself these questions.

Many cars have drum brakes on the rear wheels and disc brakes on the front. If any of the self adjuster components on drum brakes stick or break the drum brakes wont adjust as they wear out resulting in a low pedal. Step 1 park the automobile on a flat level surface.

The parking brake mechanism can also be incorporated into a drum brake alleviating the need for a separate parking brake mechanism. I am at my wits end over this one. My 74 hornet hatchback with manual drum brakes came out of the barn this spring pulling right on the first brake application.

Like the disc brake the drum brake has two brake shoes and a piston. How its design and work in automotive. And then the lf wheel would lock up.

Unfortunately the mechanical complexity of drum brakes leaves plenty of opportunity for problems some of which can cause the brake to stick. Often made of cast iron and is resistant to heat and wear. I know brakes pretty well.

Thus it causes the brake shoes to expand outwards and rub against the drum. In this system that surface is called a drum. Aap sab se nivedan h aap channel ko subscribe jarur kar.

Drum brakes have more parts than disc brakes and are harder to service but they are less expensive to manufacture and they easily incorporate an emergency brake mechanism.