There are many systems on the automobile that are important such as the engine that powers it or the transmission that transfers that power to the wheels, but without a reliable braking system they are all pointless. Automotive brakes come in two basic types. The first of these is called a drum brake and this braking system uses a set of brake shoes to slow the moving vehicle. However, drum brakes are not as common as they once were and are mostly found on rear axles. One reason for this is that there is less braking action on the rear of the vehicle, which means less wear on the shoes. However, this also implies that the front brakes will wear more frequently and require brake installations more often.
The second type of braking system is known as a disc brake. It uses a set of pads that float on each side of the wheel rotor. When the driver presses the brake pedal it sends hydraulic fluid to a piston and this pushes one of the discs against the rotor. At the same time, the hydraulic action will pull on the other side of the brake caliper so that the matching pad is pulled against the rotor. The result is a controlled braking action that is very effective. Of course, this method of stopping an automobile often causes a lot of friction and heat, which is one reason the mechanic should always check the condition of the rotor during any brake installations. A damaged rotor or one with uneven wear could cause the brakes to suddenly grab and force the driver to lose control.
One of the more important steps in brake replacement is rotor inspection and repair. The rotor is the portion of the axle system that holds the wheel, but it also has a surface on each side that is used as part of the disc brake system. The mechanic needs to check this surface for signs of damage such as heat cracks, valleys or ridges. They will also need to verify its thickness in case the rotor requires turning and most of them will. Turning is the process of machining the braking surface so it is smooth again. If the damage to the rotor is severe or it is too thin, then it will need to be replaced. Learn more about brakes from the experts at . You can also follow them on Twitter.
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