When is it necessary to do wheel alignment?

Deviation in direction, not running in a straight line, eating tires, turning around and not returning to the steering wheel, etc.

Wheel alignment is required in the following cases:

Dismantling Replacement of axle parts Defects in driving characteristics Wear of one-sided tires Accident damage.

There is no hard requirement for four-wheel alignment, it is actually a means of maintenance, and it does not need to be done regularly like maintenance, if the car does not have problems, there is no need to do four-wheel alignment. However, it is recommended to check the condition of the chassis and tires for about 20,000 kilometers for normal driving. It is needed when the car has mistracking, deterioration of steering accuracy, improper steering wheel, and abnormal tire wear.

1.The vehicle has mistracked.

The steering wheel has an automatic centering function, which is actually due to the accurate four-wheel alignment. If one day you find that the car will involuntarily deviate to the left or right, and you have to keep aligning the steering wheel to keep driving in a straight line, then you need to do a wheel alignment.

2.Tires are severely eccentric.

We usually don't check the tires carefully when driving, but we recommend that every 20,000 kilometers or 1 year carefully check the tire condition to see if there is eccentricity.

3.After an accident with a vehicle.

After the car is hit, if the suspension is damaged, the four-wheel parameters also need to be readjusted. In addition, the steering wheel fluttering, shaking or excessive weight during driving can also be caused by inaccurate wheel alignment parameters.

Need to do four-wheel alignment: in the process of driving the car, there is a phenomenon of deviation or the direction does not automatically return to the wheel. Parts of the axle and suspension were removed.

The chassis and suspension damage caused by the accident of the car need to be re-aligned. Abnormal uneven wear of tires is mainly manifested in eccentricity on one side of the front and rear tires.

The main adjustment data of four-wheel alignment includes kingpin casting, kingpin casting, wheel camber, and toe. Adjust the back-tilt of the kingpin, mainly to maintain the stability of the straight line and turn back to the right; The adjustment of the caster of the kingpin is also to maintain stability and turn back to the positive; Adjusting the wheel camber is to increase the contact surface of the tire to offset the adverse effects; Adjusting the toe is to counteract the adverse effects of wheel camber or camber.

Precautions for doing four-wheel alignment

1. When using the instrument to do four-wheel alignment, it is necessary to pay attention to confirm whether the positioning instrument of the maintenance plant is qualified.

2. When carrying out four-wheel alignment maintenance, it is necessary to confirm whether the car data used by the maintenance personnel is accurate. Cars are updated day by day, and the data is also being updated, so it is best to bring an instruction manual with you when aligning the four wheels, as it contains accurate data about the vehicle.

3. After the car is positioned, you need to check the printed data to determine whether the camber angle of the front wheel is within the standard range.

4. The chassis of SUVs, pickup trucks and small buses is equipped with torsion bar springs, which will cause inconsistencies in the height of the left and right vehicles after a long period of use, and the torsion bar needs to be adjusted to reach the standard value.

The above content refers to Encyclopedia - Four-wheel alignment.

Only when there is abnormal tire wear, do the four-wheel alignment, and when replacing the tire, you must check whether it needs to be done.

Many people don't understand what the four-wheel alignment does and think that it is an adjustment to the wheels. In fact, it's not the four wheels that are adjusted for the wheel alignment, but some tie rods. By adjusting and changing the length of some tie rods, the positioning data is maintained within the normal value.

In the lower end of the car, most can only adjust the toe-in value of the front wheel. From the front of the car, the two front wheels are not parallel to the road surface in front of them, but have an angle, just like an inner figure-eight foot, this angle is called the front wheel toe, and it is this angle that is adjusted. In some models, the rear wheels can also be adjusted, and even the more high-end cars can also adjust the wheel camber.

In addition, other positioning data cannot be adjusted, and if the data is incorrect, some parts need to be replaced.

There is no fixed number of kilometers for how often to do four-wheel alignment, and you can consider doing it when the car has the following phenomena. 1.Vehicle mistracking.

2.The vehicle eats tires. 3.

The steering wheel is not right, and the steering wheel is crooked when the car walks in a straight line. 4.The steering does not return automatically.

Other than that, you don't need to do it at any other time. Among them, vehicle deviation is more common, but it is not necessary to do positioning after deviation, to check the tire pressure and tires first, the tire pressure is different, the tire pattern is different, or the wear is different, will cause deviation.

Why do workshops often recommend wheel alignment, especially after a new tyre? Because the profit is relatively large, the four-wheel alignment is only adjusted, and there is only the cost of working hours, and there is no cost of accessories, that is, there is no cost except for equipment depreciation. And to do a ** higher, 4S shops need two or three hundred yuan, and roadside repair shops also need close to one hundred yuan.

The car is in normal use, and the positioning data will not change by itself, unless it is dragged to the bottom, touches a certain pull rod of the chassis, and does not slow down over speed bumps or potholes. According to empirical observations, if the car does four-wheel alignment without failure, it is likely to cause new problems. Why does the data become more inaccurate the more you do it?

There are several possibilities:1The positioning instrument should be installed at the four wheels, and the technician may not install it in place and not standard, which will cause errors.

2.The locator itself is faulty, resulting in inaccurate positioning data. 3.

In order to achieve the standard data on the locator, the adjustment on both sides may be out of order to make up this data when adjusting. Therefore, only when the car is faulty, consider doing four-wheel alignment, and don't do it at will if there is no fault, even if you change the new tires.

When we drive the car, we find that the steering wheel is always offset to one side, in this case we have to do a wheel alignment.

I think that in a straight line, one wheel will slip and deviate, in which case you need to do a four-wheel alignment.

There is no problem and there is no need to do four-wheel alignment, if the vehicle has deviated. Or is the phenomenon of eating tires, only need to do four-wheel alignment, four-wheel alignment is to determine the position of the four wheels, the role is to make the car not deviate when driving, will not eat tires.

Wheel alignment includes 7 situations that need to be done.

1. When the general vehicle travels 20,000 kilometers or 1 year (whichever arrives first), it must do a four-wheel alignment.

2. When you drive straight on a straight road, you also need to hold the steering wheel vigorously to ensure that the vehicle does not deviate, which means that your car needs to do a four-wheel alignment.

3. When the car is driving normally, you feel that the body is floating or swaying, like turning and driving on a rough road, which also means that your car needs to do four-wheel alignment.

4. When one side of the front and rear wheels of your car is particularly seriously worn, you also need to do four-wheel alignment.

5. When the car goes straight, the car pulls to the left or right, which indicates that your car needs to do four-wheel alignment.

6. After the car is replaced with new tires or due to collision accidents, steering or suspension system maintenance, it is recommended to do a four-wheel alignment.

7. The purchase of a new car is about 3,000 kilometers.

What are the benefits of doing a quad alignment:

1. Ensure the stability of the vehicle, and at the same time make it more fun to drive.

2. Eliminate the occurrence of traffic accidents caused by vehicle deviation.

3. It can reduce the wear and tear of automobile tires and prolong the service life of tires.

4. It can reduce fuel consumption, because after doing four-wheel alignment, it can reduce the phenomenon of "eating tires" when the car is driving, so it can also reduce the fuel consumption of the car.

5. Reduce the loss of driving, steering and suspension systems of automobiles, and prolong the service life of these parts.

<> "When do you need to do four-wheel alignment.

What is Wheel Alignment?

"Four-wheel alignment" is to determine the position between the wheels, steering knuckles and the front and rear axles through the adjustment of parameters, so as to maintain a good driving performance of the car and increase the safety of driving.

If you ask how often you need to do the four-wheel alignment, then you can only say that there is no fixed cycle, it is different from the maintenance of the brigade, it is a means of maintenance. Only when there is a problem with the vehicle do you need to do four-wheel alignment, in the absence of problems, there is no need to do four-wheel alignment.

If you have to have a deadline, you can judge it according to the frequency of use of the car and the environment in which it is used. The average family car can do a tire alignment check once a year, if you use it frequently or often go on bad roads, you can do a four-wheel alignment once every six months, of course, this is only a suggestion when the vehicle is not a problem.

Wheel alignment is required when the vehicle has the following problems:

1.The vehicle has mistracked.

Everyone knows that the steering wheel has an automatic centering function, in fact, this is due to the accurate four-wheel alignment. If one day the car will involuntarily deviate to the left or right, you must keep the steering wheel in order to keep driving in a straight line. That's when you need to do a four-wheel alignment.

2.Tires are severely eccentric.

Generally, we do not check the tires when driving, so it is also recommended that you check the tire condition once every 20,000 kilometers or 1 year to see if there is any eccentricity. If you find the phenomenon of eating the fetal hall stool, you need to do four-wheel alignment.

3.After an accident with a vehicle.

When the car is hit, if the suspension is damaged, the four-wheel parameters also need to be readjusted. In addition, during driving, the steering wheel flutters, shivers or is too heavy may also be caused by inaccurate four-wheel alignment parameters.

1.If you change your tires, or if you have an accident such as a vehicle collision, you need to align your wheels. Because after changing tires, the tire size and wear degree of the vehicle are different, and the center of gravity is unstable when driving; However, accidents such as vehicle collisions will inevitably cause more or less clearance or deviation of vehicle tires, so four-wheel alignment is necessary.

2.When one side of the tire is excessively worn, it is necessary to consider that the tire position is incorrect and the wheel alignment adjustment is required. Therefore, it is common to get into the habit of observing the degree of wear on the surface of the tire.

If it is not visible to the naked eye, it can be observed with small calipers. You can also put that ruler on the tire tread and see if the two sides are the same height. 3.

If the steering wheel is heavier than before when the vehicle is driving, especially when steering, it means that there is a problem with the steering system of the vehicle, and the problem needs to be eliminated through the four-wheel alignment inspection. 4.Four-wheel alignment is required when the vehicle is seriously mistracked.

For example, if we drive on a straight road normally, the steering wheel turns straight, and the vehicle slowly deviates to the left or right, it means that there is a problem with the direction of the vehicle and we need to do four-wheel alignment.

<> "Four-wheel alignment is based on the four-wheel parameters of the vehicle, and is adjusted to ensure that the vehicle has good driving performance and certain reliability. So under what circumstances do you need to do wheel alignment?

If the vehicle is driving and the body is swaying, you need to do the wheel alignment as soon as possible.

If the vehicle has been involved in a traffic accident and the suspension or chassis has suffered serious damage, wheel alignment needs to be done after the repair is completed.

If the owner finds that the steering wheel cannot be automatically corrected after driving the vehicle, it is also necessary to do the four-wheel vertical slag positioning as soon as possible.

If one of the four tires has serious wear and tear on one side of the tire, and the owner is unable to drive the vehicle normally, it is necessary to do the four-wheel alignment in time.