Thousands of roads, safety first, in the driving safety, we for the maintenance and maintenance of the car is also a very important part, and the most important of which is the tire and brake system maintenance and maintenance, because once the tire or brake failure, it may cause serious traffic accidents. In the previous article, Brother Meow has told you many times about the replacement standards of tires, and today Brother Meow will focus on telling you how to judge whether the brake pads need to be replaced.
As shown in the figure below, although the brake pads are small but complete, the brake pads are composed of two parts, one part is the body, including the insulation layer, the viscose layer, the back plate, the silencer, etc., and the other part is the wear-resistant material, the so-called wear-resistant material, in layman's terms, is the part that is mainly rubbed during the daily driving process of the car, which is about 1-1.5 cm thick. The small brake pads are subjected to great pressure, and the cost of the brake pads is lower than that of larger brake discs and other weary parts, making them more suitable for frequent replacement to ensure driving safety.
After understanding the structure of the brake pads, many friends will ask, so when should the brake pads be replaced? Since the wear-resistant material in the brake pads is limited, long-term wear will make there be less and less material to wear. In general, when the wear-resistant material has been consumed two-thirds, it needs to be paid attention to, although even if the wear-resistant material is exhausted, it will not fail to brake, but it will make you fall into the danger of braking distance is too long.
When the vehicle is driving at high speed, due to the rapid inertia of the vehicle speed, it is very likely that the car cannot be braked, directly rear-end the vehicle in front, resulting in a traffic accident with full responsibility. The development of modern technology makes it unnecessary for you to roughly estimate the time to replace brake pads. On some more expensive cars, corresponding induction lines will be placed in the brake pads, and when the original brake pads reach a critical point where they will not be able to wear continuously, a handbrake-like icon will be displayed on the dashboard of the vehicle to prompt the replacement of the brake pads.
However, some cheap car brake pads do not place induction wires, but use the way of placing warning irons next to the brake pads, when the friction material wears to the limit, the brake discs and the warning patch next to them will scratch, and then emit a sharp and harsh sound of iron and iron rubbing, in order to remind the driver to check and replace the brake pads in time. If the driver does not pay attention to continue to use at this time, although the brakes will not fail, but the warning iron plate will continue to wear out with the brake disc, the brake disc will leave a deep wear groove, resulting in the brake disc directly scrapped in advance.
Because everyone's driving habits are different, it is not scientific to judge whether the brake pads should be replaced simply by driving mileage. Rough driving habits, a pair of brake pads 20,000 or 30,000 kilometers will be worn out, and good driving habits, a pair of brake pads can even be used to more than 100,000 kilometers. In addition to judging whether it needs to be replaced according to the sensor reminder, you can also see the thickness of the brake pad through the spoke gap, which can roughly determine whether the brake pad needs to be replaced.
"The car is not good, the brakes should be smart", as a driver, we have the obligation to pay attention to the degree of wear of our own brake pads, combined with our own driving habits to check and replace the brake pads in a timely and timely manner to ensure our own driving safety, that is, to ensure the safety of everyone's travel.