These things must not be less when changing tires, otherwise the consequences will be unimaginable.

Changing the tires of a car is something that every driver has experienced. Putting on new tires improves safety and driving comfort. But how to change the tire correctly and what to pay attention to when changing the tire, I don’t know if you know? Today, I will tell you a few points for attention.

dynamic balance

Dynamic balance is to adjust the balance of the wheels, and the meaning is to keep the wheels in a balanced state after turning. The wheel of an automobile is a whole composed of tires and wheels. However, due to manufacturing reasons, the mass distribution of all parts of the whole can not be very uniform. Dynamic balance is to make the wheel correct the balance of each edge part by adding counterweight under dynamic conditions. Generally speaking, the unbalanced weight is more serious when it exceeds 50g.

Note: As long as the tire and rim are assembled together, a set of dynamic balance adjustment is needed.

Influence of wheel imbalance

When driving, you can feel the wheels beating regularly, which is reflected in the steering wheel shaking inside the car. When the imbalance is serious, the tire may also be eccentric because of abnormal lateral swing, and the tire life will also be affected. Long-term running of vehicles with unbalanced wheels will also have a great impact on bearings and suspensions, shortening the service life of machinery.

Therefore, the first thing after tire replacement is to do tire dynamic balance! ! !

four wheel alignment

Four-wheel alignment is based on the four-wheel parameters of the vehicle, and it is adjusted to ensure good driving performance and certain reliability of the vehicle. It has a great influence on the overall stability and safety of vehicles.

Vehicles need to do four-wheel alignment in the following situations

After replacing a new tire or repairing a collision accident. Unilateral eccentric wear of front and rear tires. The steering wheel is too heavy or floating and shaking while driving. When going straight, the car deviates to the left or right. Daily maintenance of the vehicle: After driving the new car for 3 months, do four-wheel alignment once every six months or 10,000 kilometers.

Harm of four-wheel alignment inaccuracy

Excessive tire wear: inaccurate four-wheel alignment parameters can cause eccentric tire wear and thus lead to the danger of tire puncture. The vehicle is not easy to drive: the steering wheel shaking and deviation will make you feel more tired when driving, and increase the probability of traffic accidents. Increased fuel consumption: If the fuel consumption increases without special circumstances, it may be that the four-wheel alignment parameters of the vehicle are inaccurate.

Four-wheel alignment not only needs to be done after changing tires, but also needs to be checked in time in daily maintenance, for example, vehicles often get on the road (especially from the front wheels) and often cross the speed bump quickly.

Tire pressure detection

Tire pressure is the tire pressure. It can usually be found in these places: a. Vehicle user manual; B. Label next to the cab door (near the B-pillar); C. drawers beside the driver’s seat of the vehicle; D. small door of fuel tank cover; E. The tire pressure of the car is near the doorpost or on the fuel tank cover, or look at the side of the co-pilot door of your car.

The hazards of unstable tire pressure are as follows:

Oil consumption, affecting normal driving speed. Wear tires and shorten tire life. Affect the control, easy to cause accidents.

Tire pressure monitoring should be carried out with a standard tire pressure monitor, and the kicking experience is unreliable.

New tire running-in

Finally, the tires are running in. Like new cars, new tires need to be run in for a certain period of time. However, the following points should be noted:

1, avoid emergency braking

2, avoid overload

3. Avoid high-speed cornering

4. Avoid driving at high speed

5, avoid running long distances

6. Avoid taking gravel roads or potholes.

Although the tire is changed, it doesn’t mean it’s ok. Daily maintenance is very important. Take good care of your car!