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There are many contraindications for the use and maintenance of spare tires

There are many contraindications for the use and maintenance of spare tires

Shandong Shengshi Tailai Rubber Technology Co., Ltd.

The use of spare tires is not as simple as we think. We know that spare tires are divided into full-size spare tires and non-full-size spare tires. Non-full-size spare tires are a cost-effective expedient measure for manufacturers. Moreover, spare tires have the same service life as rubber tires, so they should pay attention to some problems not only in the use of spare tires, but also in maintenance.

In fact, neither full-size spare tires nor non-full-size spare tires can be used for a long time. Because the commonly used tires have been worn for a long time, after replacing the spare tires, especially the front wheels, inconsistent tire wear will cause the car to deviate, and the friction coefficients of the four tires are different, the ground adhesion is different, and the air pressure is also different. Long-term use will affect the car's braking system, steering system and suspension system, and it is easy to make the tires wear more unevenly, and there will be potential safety hazards. Therefore, no matter what kind of spare tire, it is not recommended to use it for a long time, only as a short-term emergency.

Spare tires also need maintenance

1. Spare tire pressure

Even if the spare tire is not used for a long time, the tire pressure will gradually decrease. Therefore, the car should check the spare tire pressure before running a long distance; in the normal maintenance process, the spare tire should be inflated. The air pressure of the spare tire is not the same as the tire pressure of the tire in normal use. Before using the spare tire, the tire pressure of the ordinary car is between 2.0bar and 2.5bar (generally the front and rear wheels are not the same, summer and winter are different), and the spare tire The pressure can be maintained at 2.7bar. A spare tire kept at 2.7bar can not only maintain the shape, but also reduce the probability of a flat tire in use. However, as long as it is a spare tire, it cannot be used for a long time in any case, let alone at high speed.

2. Regularly check the spare tire

Regularly check whether the spare tire is "healthy". The so-called "health" refers to whether there is wear, cracks, aging, etc. and whether the sidewalls and crowns are abnormal.

3. Prevent contact with oil, acid and other corrosive materials

Do not contact with oil, acid and other corrosive substances during storage of the tire, especially motor oil.

4. The repaired spare tire should pay more attention to the speed

If the spare tire for temporary emergency replacement is repaired, you should pay more attention to controlling the speed of the vehicle, especially the non-full-size spare tire. Due to the repair, the high-speed performance of the spare tire will be reduced, and the safety risks will be greatly increased. 40KM / h.

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