As the only part of the vehicle that is in direct contact with the ground, the safety of the tire is directly related to the personal health and safety of the people in the vehicle. Accidents caused by tire failure account for a large proportion of traffic accidents, so it is necessary to do a good job in daily inspection and maintenance of tires, repair and replace tires in time to ensure driving safety. Popularize tire maintenance knowledge for everyone!
1. How often do you check the tire pressure?
Check the tire pressure at least once a month or before each long trip, including the spare tire. Check the tire pressure when it is cold, that is, check it at least three hours after parking. If necessary, the tire pressure should be supplemented to the pressure specified on the automobile bulletin board. Because the reading of the cold tire is the most accurate, you should drive to the nearest inflation point as much as possible to inflate it. Hot tires are forbidden to deflate or decompress. It is normal that the tire pressure is higher than the recommended cold inflation pressure after the tire is heated due to driving. If the tire pressure of the hot tire is reduced, the tire pressure will not be enough after cooling. In addition, check the tire pressure with a high-quality barometer, and don't trust your eyes too much. You can't judge whether the inflation pressure of the tire is correct from the appearance.
2. How do I know that I should change the tire?
If the "wear indicator" of the tire in the groove indicates that the groove depth is only less than 1.6 mm, it is recommended to replace the tire. The tire wear indicator is a protrusion in the groove. When the tread is worn to 1.6 mm, it is flush with the tread and can't be wrong. If tires with groove depth less than 1.6 mm are used, traction and braking force will suddenly lose in rainy days, and traction will be completely lost in snowy days. If the tire can be replaced before it is worn to 1.6 mm, there should be no such problem. In snowy areas, it is also wise to change tires before they wear to this limit. In Zita Law, the tire tread should have the ability to compact and throw snow.
3, tire eccentric wear should be timely four-wheel positioning.
The specification of eccentric wear is called unilateral wear, which is generally due to poor wheel positioning, resulting in excessive outward or inward inclination of the wheel. This requires wheel four-wheel alignment correction to eliminate tire eccentric wear caused by poor four-wheel alignment. After the tire is eccentric, if it continues to drive, it will cause abnormal vibration of the vehicle and affect the handling performance of the vehicle. If the four-wheel alignment is not carried out in time, the eccentric tire will soon be scrapped due to serious local wear.
4. How to deal with a flat tire:
If the rear wheel has a flat tire, the car will lean to the flat tire side. At this time, you need: hold the steering wheel tightly; Try to keep the car driving in a straight line, sharp turns may cause the car to get out of control or roll over; Do not step on the clutch and accelerator pedal; Step on the brake pedal slowly (don't brake suddenly, otherwise the car will spin or roll over); Drive to a safe place on the side of the road; When changing tires on the side of the road, pay attention to: park your car in a safe place on the side of the road and light up the danger signal light; Put the gear into first gear (the automatic transmission is in P gear) and pull the handbrake.