Teach you how to judge the thickness of the brake pads 1, see the thickness to determine whether the brake pads should be changed. For most disc brakes, we can observe the thickness of the brake pads with the naked eye. In the long-term use of the brake pads, the thickness will become thinner and thinner as the brakes continue to rub during braking. The thickness of a brand-new brake pad is generally about 37.5px. If we find that the thickness of the brake pad is only about 1/3 (about 12.5px) of the original brake pad, we need to observe its thickness frequently. When it is about 7.5px, it needs to be replaced (you can ask the technician to measure with a caliper during maintenance).
Generally, the service life of brake pads is generally about 40,000 to 60,000 kilometers, and the harsh vehicle environment and aggressive driving style will shorten its service life in advance. Of course, due to the design of the wheel hub or brake caliper, individual models cannot see the brake pads with the naked eye (drum brakes can't see the brake pads for reasons), so we can ask the maintenance master to remove the wheel and check it every time. Brake pads. 2. Listen to the sound to determine whether the brake pads should be changed. For drum brakes and individual disc brakes that cannot be seen with the naked eye, we can also use sound to determine whether the brake pads have been worn.
When you tap the brakes, if you hear a sharp and raspy "Bao" sound, it means that the thickness of the brake pads has been ground below the limit marks on both sides, causing the marks on both sides to directly rub the brake disc. When braking, the continuous friction between the brake pads and the brake disc will also cause the thickness of the brake disc to become thinner and thinner. According to the different driving modes of the vehicle, the life of the front and rear brake discs are also different. Taking the previous driving as an example, the life cycle of the front disc is about 60,000 to 80,000 kilometers, and the rear disc is about 100,000 kilometers. Of course, this is also closely related to our driving habits and driving style according to Maisheng Machinery Manufacturing.