Focus on tire safety Five types of wear A crack How to deal with

Car tires include spare tires and must be checked regularly every month. During the inspection, observe the tire surface for cracks or scratches. It's best to put gloves on the inside of the tire and check for suspicious traces. As long as the slightest suspicious point is found, you should immediately ask the car dealer to do a detailed inspection. Tired tires do not want to throw. If it is found that the surface of the tire is not properly worn, it should be thought that there may be problems with the adjustment of the toe of the wheel and it is necessary to repair it.

1. If the wear of the outer edge edge is observed along the direction of travel, there will be greater wear on the outer edge of the tire, indicating that the tire is often in a state of insufficient inflation, ie, the pressure is not enough. If possible, inflate according to the "highway" standard, which means that there is an additional 30,000 pas above the normal standard. It is important to know that under-inflated tires are not conducive to rainy days and the grip will be significantly reduced.

2. Convex and corrugated wear If it is found that both sides of the tire on the ground are convex wear, and the tire periphery is also corrugated wear, indicating that the car's shock absorbers, bearings and ball joints and other components wear more serious. It is recommended that you check the wear of the suspension system and replace worn parts before replacing the tire. Otherwise, even if you change the tires will not help.

3. Uniformly worn tires Once the pattern has dried, the tire has reached the end of its life and must be replaced. In addition, the pattern also has the effect of dissipating water in the road area, so it is an important link to maintain the car's grip. If the wear has reached the standard depth of the tread (usually 1.6 mm, the width of the tire is greater than 175 mm is 2 mm), it will be replaced.

4. If the central part of the tire is worn, it is found that the central area of ​​the tire is heavily worn. This indicates that the tire is often over-inflated. Be sure to check the accuracy of the pressure gauge and adjust the pressure. It is important to know that the tire must be inflated only when driving at high speeds or on heavy loads.

5. The inside of the tire wears out and wears inside the tire, and the outer edge is burr-like. It is common for some old cars to have a bad suspension system, which causes the entire vehicle body to sink deep. This shows that the tire deformation, the symmetry of the two tires has been affected. If conditions are available, it is best to replace the shock absorbers, ball joints, and other accessories. However, if the cost is too high, consider asking a professional mechanic to adjust the front axle and tire angle.

Side cracks on tires are often caused by poor maintenance or driving on rocky roads and construction sites, so that hard objects come into contact with the tires, causing damage to the inner layers of the tires under heavy pressure. Should act immediately. If the repair is not good, replace the tire.