The Car Piece Self Inspection, These Points Must Be Kept In Mind
I believe many old drivers have a deep understanding of car maintenance. It's not only that the maintenance fees are impressive, but also that there are too many parts to be counted. However, many novice and old drivers will ignore the care and detection of brake pads. Today, I will talk about the knowledge of brake pads.
Definition and classification of brake pads
The brake pad is a friction material fixed in the middle of the brake cylinder. When the driver steps on the brake, the brake master cylinder pushes the brake oil and compresses the piston in the brake cylinder, causing the contact friction between the brake pad and the brake disc, which plays the purpose of deceleration braking. Therefore, the brake pad plays a key role in the brake system. According to the material and characteristics, the brake pad can be divided into semi-metal, micro metal, ceramic, carbon ceramic and high carbon fiber.
Check the status of brake pads
According to everyone's car habit and frequency, the loss degree of brake pads is different. Normally, a new pair of brake pads can be used for about 60000-60000 km. The simplest way to judge the status of the brake pad is to replace the brake pad as soon as the warning light is on. The principle is to insert the alarm line into the brake pad sensor. If the brake pad is worn to the position of the sensor, the grounding contact between the sensor line and the brake disc will lead to the increase of resistance, which will generate a large current and finally turn on the alarm light.
Precautions when replacing brake pads
First of all, when replacing the brake, we should pay attention to whether the repair shop cut corners, because the brake pads are replaced by a pair, not just one. Secondly, the newly replaced brake pads are thicker than the original ones, so the sound of friction may appear in the process of use. This is a normal phenomenon, so there is no need to worry too much. Finally, after changing the brake pads, try it in the repair shop first. Don't leave in a hurry.
We know that the brake is very important to the safety of a car, and the brake pad occupies an important position in the brake system, so we should pay attention to observe whether there is a problem with the brake pad at any time during driving. In the event of a problem, timely replacement, to avoid accidents!