How long does the brake disc change
The maximum wear limit of the brake disc is 2 mm, and a new brake disc should be replaced after the limit. But in actual use, most people have not strictly implemented this standard. The frequency of replacement must also be measured according to your own driving habits, and the general measurement standards are as follows:
1. Look at the frequency of replacement of brake pads. If the frequency of replacement of the film is very high, it is recommended to check the thickness of the brake disc. After all, if your film fee is faster, it means that you have a lot of brakes, so check the brake disc regularly.
2. Determined according to the wear status: In addition to normal wear, the brake disc is worn due to the quality of the brake pads or brake discs and the normal use process. It is recommended to replace it if there is a deviation (thin in some places, and some places), because the deviation of the wear difference will directly affect our safe driving.
Generally, the front brake disc is checked every 60,000 kilometers, and the rear brake disc is checked every 120,000 kilometers. The maintenance cycle stipulated by car manufacturers in different models is not exactly the same, and the specific replacement cycle is subject to the requirements of automobile manufacturers.
To what extent to the brake disc
You can judge through the following methods:
1. Listen to the sound: If the sound of the "iron" or the sound of the sound of "iron" (may also be the role of the brake pads at the beginning of installation at the same time), at this time, the brake pad must be immediately immediately immediately immediately replace. Because the limits on both sides of the brake pads have directly rubbed the brake disc, which proves that the brake pads have exceeded the limit.
In this case, when replacing the brake pads, it is necessary to cooperate with the brake disc examination. When this sound occurs, the brake disc is often damaged and scratches occur. At this time, even if the new brake pads are replaced, the sound cannot be eliminated. Replace the brake disc.
In addition, there are some hard -quality brake pads, which will also cause abnormal noise. Generally, the abnormal noise generated will be grinded and disappeared for a period of time.
2. See if the brake disc warning light is on
Generally, the indicator light is out of the state. When the brake disc is faulty or too much wear, the light is lit and extinguished after repairing. When the warning lights are on, the brake discs have been worn to the limit, and the brake effect has declined, which greatly affects driving safety. Therefore, we recommend that the brake disc wear on a regular basis to see if it can be used, instead of just believe in the warning light.
3. Look at the thickness
Most brake disc products have worn indicators, that is, 3 small concave pits will be distributed on the plate surface. The depth of the small pit with a cricket ruler is 1.5mm. In other words, when the total wear depth of the double -sided brake disc reaches 3mm, we recommend replacing the brake disc in time.
Of course, not all brake discs have worn indicators. We can use our fingers to touch the extension of the plate to judge the general depth. Generally speaking, if the total wear depth of the double -sided brake disc reaches 3mm, the brake disc should be replaced in time.
4. The sound of brakes
When the brake is brake, the sharp sound occurs, and the brake effect is poor. The brake pads cannot be improved. At this time, the brake disc degenerate after the brake or the long slope frequently brakes. The loud noise becomes a sound, and the brake disc should be replaced.
5. Brake jump
When the brakes, if the tire beating scene occurs, check whether the brake disc de about, such as deformation must be replaced.
In addition, when the brake discs on both sides (drums) use different brands of different specifications, resulting in different friction effects, resulting in different braking effects on both sides, which will cause bad brakes, poor braking effects, and long braking distance. Therefore, it is recommended to replace the coaxial brake pads (hoof) on both sides to ensure the same braking effect.