When the brake disc is maintained each time, the repairman will check it again, because each person's driving habits, different routes, the wear degree of the brake disc will vary greatly, and a car owner often runs high speed, from buying a car to more than 2 years now, driving the 3W public, and watching the front wheel brake at least again. Use 1W kilometers. Like this kind of brake disc driving up to 5W kilometers of high-end cars, after the new brake disc, easy to step on the brakes, sometimes do not step on the brakes and natural sound, the sound of miso. What is the reason? For example, today this car, the mileage is 3W kilometers, when changing the brake disc, we should pay attention, the high end heavy truck brake disc will generally wear more deep, the brake disc, the outer rim of the edge will have a step. Because the outer ring of the brake disc and the brake disc is not superposed, there will be a distance of 1mm.
If the brake disc is installed directly, there may be two problems, one, the edge of the brake disc will contact with the inner and outer ring steps of the brake disc, and the sound of dally. Two, especially the unqualified brake discs should be paid more attention to this problem. After the brake, the brake pad was too wide. The sides of the tablet pressed directly on the brake pad step, and there was no contact between them. The following is a polished brake pad, which needs to be ground and slanting inside and outside.