In the automobile braking system, the brake pad is the most critical safety part, and the brake pad plays a decisive role in all the braking effects. So a good brake pad is the protector of people and cars.
The brake pad is generally composed of back plate, adhesive insulation layer and friction block. The friction block is composed of friction material and adhesive. During braking, the friction block is pressed on the brake disc or brake drum to generate friction, so as to achieve the purpose of vehicle deceleration braking. Due to friction, the friction block will be gradually worn. Generally speaking, the brake pad with lower cost will wear faster. The brake pad shall be replaced in time after the friction materials are used, otherwise the back plate and the brake disc will be in direct contact, and eventually the brake effect will be lost and the brake disc will be damaged.
Brake shoes, commonly known as brake pads, are consumables and will gradually wear out in use. When the wear reaches the limit position, it must be replaced, otherwise the braking effect will be reduced and even safety accidents will be caused. The following are the points we can pay attention to in daily driving:
1. Under normal driving conditions, the brake shoe shall be inspected every 5000 km, not only the remaining thickness, but also the wear condition of the shoe, whether the wear degree of both sides is the same, and whether the return is free. In case of any abnormality, it must be handled immediately.
2. The brake shoe is generally composed of steel back plate and friction materials. Do not replace it only after the friction materials are worn out. Some vehicles are equipped with brake shoe alarm function. Once the wear limit is reached, the instrument will give an alarm and prompt to replace the brake shoe. The shoes that have reached the service limit must be replaced. Even if they can be used for a period of time, the braking effect will be reduced and the driving safety will be affected.
3. Professional tools must be used to Jack back the brake cylinder when replacing the shoe. It is not allowed to press back with other crowbars, which will easily lead to bending of the guide screw of the brake caliper and jamming of the brake pad.
4. After replacing the brake pad, be sure to step on the brake several times to eliminate the gap between the brake pad and the brake disc. Generally speaking, after the brake shoe is replaced, there is a period of running in period with the brake disc to achieve the best braking effect. Therefore, the newly replaced brake pads must be driven with caution.
Post time: Aug-09-2022