Four wheel alignment of tires, the role of four wheel alignment of tires?

Some car tires that have not been driven also have a shelf life, just like food, and rubber will also age over time, causing safety hazards, so this should also be considered. As for the new tires that have just been replaced, it is necessary to do four-wheel alignment, which is to prevent the front wheels from "biting the tire" and accelerating wear. He adjusts toe-in, camber, etc.

After you buy it, it's best to do a shift of 10,000 kilometers.

If possible, it is best to disassemble the tires and reload them, and then cross them with the front and rear. , but only if it is a symmetrical pattern. There is no need to do four-wheel alignment, dynamic balancing must be done.

Hello! 1) Routinely speaking, the car should be re-positioned every 8,000 10,000 kilometers or so, so at least twice a year to do the positioning inspection.

2) Check the tire wear at least once a month. If the tire wears unevenly, for example, one side of the tire shoulder wears out faster than the rest of the tread.

Or if you notice that your vehicle is shaking or mistracking, your vehicle may be poorly positioned or unbalanced. These conditions not only shorten the life of the tires, but also affect the handling of the vehicle and can be dangerous. If you notice irregular wear or shaky or mistracking, check the wheel alignment and balance right away.

3) In addition, it is recommended to do a four-wheel alignment when replacing new tires.

4) Quad wheel alignment check can also be carried out every time the tire is rotated.

First of all, it should be pointed out that the main body of the four-wheel alignment is the suspension and steering system of the vehicle.

It has nothing to do with the tire itself, and the tire is just a reference item that reflects the correct positioning.

The functions of four-wheel alignment are: 1. Ensure the stability of the vehicle's straight driving; 2. Increase the service life of tires; 3. Enhance driving comfort; 4. Reduce the wear and tear of chassis suspension accessories; 5. Enhance driving safety. The installation between the steering wheel, the steering knuckle and the front axle of the car has a certain relative position, and the installation with a certain relative position is called front wheel alignment.

In this way, the front wheel alignment and the rear wheel alignment are called wheel alignment, that is, the four-wheel alignment that is often said. The function of wheel alignment is to keep the car stable in a straight line and the steering is light, and to reduce the wear and tear of the tires and steering parts of the car while driving.

Since the installation between the four wheels, steering mechanism, and front and rear axles of the vehicle should have a certain relative position, this relative position is the standard value set by the manufacturer. Adjusting the installation to restore this position is the four-wheel alignment.

Need to do four-wheel alignment situation:

1. The driving performance of the vehicle has been affected (the most direct feeling of the driver is the deviation, and the direction is not automatically returned).

2. Damage to the chassis and suspension caused by accidents.

3. Abnormal tire wear (but also consider whether it is due to abnormal tire pressure that causes abnormal wear, under normal circumstances, high tire pressure will aggravate the wear of the tread, and low tire pressure will aggravate the wear on both sides of the tread; If there is eccentricity on one side, there is a possibility that the camber angle is misaligned. ）

4. The axle and suspension parts have been removed.

Data for Quad Wheel Alignment to Adjust:

1. The kingpin is tilted backwards.

Function: Straight-line stability, steering back to the right.

2. The kingpin is tilted.

Function: Stability, steering back to normal.

3. Wheel camber (negative camber).

Function: Increase the contact surface of the tire and counteract the adverse effects.

4. Toe in front (front exhibition).

Purpose: Counteract the adverse effects of wheel camber (camber).

1. The four-wheel alignment is inaccurate, resulting in tire eating when the two wheels on the same side are running, or when the front and rear wheels are not aligned. 2. Inaccurate toe-in adjustment will also lead to tire eating. 3. The failure of the steering machine also leads to tire eating and deviation.

4. The unevenness and deformation of the girder will also cause the tire to eat the tire. 5. Mixed tires of different specifications, the air pressure of each tire is very different, and the tires will also be eaten.

Precautions for the use of tires:

1. Check the tire pressure during the fixed chain type, the tire pressure is an important factor affecting the life of the tire, not too high or too low, and the tire pressure should be inflated according to the vehicle marking. Try to keep the tire pressure low in the summer; In the cold winter, try to ensure that the tires of the car are more than the summer roof grinding, because the tires are easy to expand and contract.

2. Check the wear and tear of the tires frequently, sometimes individual vehicles will eat tires, which should always check the tires, especially the inner side, to see if there is abnormal wear, mainly to observe whether the tread depth on both sides of the tire is consistent.

3. Remove small stones and other foreign objects in the tires in time, the foreign objects in the tire pattern are potentially dangerous and easy to splash out when the car is moving. Therefore, if you find small stones, you should use a key to pick them out and try to ensure that the tires are clean.

Hello, the four-wheel alignment of the car wheels is made of professional detection and adjustment equipment, drive the car to the special lift of the equipment and park it, install the wheel detection and beat early equipment, determine the adjustment data through the detection of the computer, and then adjust. If you need to adjust, it is recommended to go to a professional 4S shop or maintenance organization to adjust, not privately, if the adjustment is not good, it will affect the vehicle.

1. Drive the vehicle on the positioning four-post lifting frame and check the tire pressure and vehicle height;

2. After the four wheels are suspended, check whether the tires are irregularly worn, worn, and deformed, if the grinding rubber damage reaches the standard, the steering ball joint can be measured whether there is looseness and whether the length of the left and right tie rods is consistent;

3. Check whether the upper and lower suspension, stabilizer bar, square frame and girder are deformed or loose;

4. Check whether the rear axle, cross power lever and rear tie rod are deformed, and whether the rubber sleeve is loose;

5. Put down the vehicle after there is no abnormality, shake the stuffy vehicle several times to prove that the suspension system is in a normal state, and open the four-wheel alignment fixing pin.

Four-wheel alignment needs a professional machine to tease Huai to adjust, adjust your car mountain laughing friend wheel data to the best state, so that it will not lead to the phenomenon of eating tires and running all over, I hope to help you.

Drive the vehicle onto the positioning four-post lifting frame and check the tire pressure and vehicle height; 2. Check whether the tires are irregularly worn and deformed after the four wheels are suspended, and if the wear reaches the standard, the steering ball joint can be measured whether there is looseness and whether the length of the left and right tie rods is consistent; 3. Check whether the upper and lower suspension, stabilizer bar, square frame and girder are deformed, loose and simple; 4. Check whether the rear axle, cross power lever and rear tie rod are deformed and whether the rubber sleeve is loose; 5. Put down the vehicle after there is no abnormality, shake the vehicle several times to prove that the suspension system is in a normal state, and set aside the four-wheel alignment fixing pin.

Four-wheel alignment, you need to go to the 4S store to do it, if there is no accident, it is not necessary to do it.

After changing the tires, you need to do four-wheel alignment. This doesn't hurt the tires and suspension, the point is to ensure safety.

The four-wheel alignment is based on the four-wheel parameters of the vehicle, and the gear is adjusted to ensure that the vehicle has good driving performance and has a certain reliability.

There are three main functions of wheel alignment:

First, the steering wheel automatically resets after steering to improve driving comfort.

The second is to keep the steering wheel upright, maintain the vehicle in a straight line, and increase the safety of the vehicle.

The third is to reduce gasoline consumption, reduce the loss of suspension accessories, and avoid rapid abnormal wear of tires.

The situation in which wheel alignment should be done is as follows:

1. After replacing new tires or repairing in the event of a collision accident.

2. One-sided eccentric wear of front and rear tires.

3. The steering wheel is too heavy or floating and shivering when driving.

4. When going straight, the car runs left or right and deviates.

5. Daily maintenance of the vehicle: after driving for 3 months, the new car will be aligned every six months or 10,000 kilometers.

1.After replacing new tires. In addition to the basic dynamic balance, the new tires also need to check and adjust the wheel alignment. Because of the four-wheel alignment parameters and whether it is within the specified range, similarly, the four-wheel alignment should also be done after adjusting the tires during maintenance.

2.Wheel alignment is also recommended if the chassis and suspension are damaged after a vehicle crash. The quad wheel alignment itself is the suspension, and if the suspension is damaged, the parameters of the quad alignment will most likely change.

3.The driving performance of the vehicle is affected. For example, when driving in a straight line, the vehicle always deviates, the steering wheel automatically turns back, and the steering wheel shakes, floats or is too heavy.

4.Tires are worn locally or in other ways. For example, camber deviation may cause eccentricity; Toe-in values and gears often lead to abnormal tire wear.

Four-wheel alignment is a fixed tire, because the tire and the hub are together, the wheel of the car is composed of a whole of tires and hubs, but due to processing technology and other reasons, the mass distribution of each part of the wheel can not be very uniform, when the wheel of the car rotates at high speed, it will form a dynamic unbalanced state.

In order to avoid or eliminate this phenomenon, it is necessary to make the wheel in the dynamic situation by increasing the counterweight, so that the wheel corrects the balance of each edge part, and the process of this correction is often said to be the dynamic balance, that is, the dynamic balance is to correct the counterweight balance of the wheel tire hub, so that the vehicle tire has been in concentric motion, and the dynamic balance is mainly to adjust the wheel.

After replacing or repairing the suspension, steering and other systems, it is necessary to do four-wheel alignment, adjust the angular precision between the various components of the chassis system, if the four-wheel alignment is not accurate, it will excessively wear the vehicle chassis system, if the vehicle deviates, the steering accuracy becomes poor, it may also be caused by the inaccurate positioning angle, you need to consider doing four-wheel alignment.