The left rear tire side of the car scratch, need to change it?
Tire pressure is too low or too high, will affect the service life of tires. If the tire pressure is too low, the radial deformation increases, the deformation of both sides of the tire wall is excessive, resulting in two wear of the crown of the tire, so that the temperature of the tire increases, will seriously reduce the service life of the tire.If the tire pressure is too high, increased tire stiffness, deformation and ground area is reduced, so that the central unit tread pressure increases, the wear of Caroline drama. Produces a crown wear phenomenon that affects comfort and reduces tyre life. Tests have shown that if the pressure is increased by 25%, the tire life will be shortened by about 30%.
The correct installation of tires is directly related to the service life of tyres, especially when new tires are replaced. The types and patterns of different tires, because the tire size and load capacity of different, must not be arbitrarily mixed. In addition, if you do not fully grasp the skills of changing tyres, we suggest you change to a professional tire shop or a special vehicle repair shop.
1, to improve the understanding of tire safety, usually to check the tires, especially on high speed, we must be fully detailed examination, in addition to outside pressure, but also to observe whether there is a side of the tire, tread wear, found hidden should be excluded.2, regular correction wheel balance, wheel imbalance is excessive, high speed will produce high frequency oscillation, causing tire partial wear, is not conducive to driving safety. After the tire repair, should go into the action balance test adjustment, the tire side dynamic balancing test value should be less than or equal to 40 grams.3, carry out regular tires, in order to maintain the same car tire wear uniform, vehicle traveling 5000 kilometers each should make a tire rotation, every 5000 ~ 10000 km for a four round of positioning, in order to avoid the tire abnormal excessive wear, are not allowed to install tires of different types or larger differences in the same old a shaft.
From the line of tyre usage, there will be four digits on the side wall of the tire indicating the date of manufacture of the tire, the first two representing weeks, and the last two representing the year. The use of tires generally do not exceed 3 years, mileage is not more than 60 thousand kilometers. Although slightly longer than the length of life and mileage is no harm to the overall situation, but the winter low temperature and summer rain will make the tire of wetland grip and dry ground handling is relatively poor.2, pay close attention to the side wall of the car tire: as the tire rubber gradually aging, the tire side wall will appear deep lines. However, as long as the sidewall of the tire is not impacted and the cord is not broken, it can continue to be used. The triangle mark on the side wall of the tire can help the owner find a protuberance in the groove of the crown, and can determine the actual wear limit of the tire. The value should be greater than 1.6 millimeters.
Because the side of the tire is relatively weak, if it is a side scratch, almost impossible to repair, such as continued use, there is a risk of a tire blowout, there are security risks.