How to do wheel alignment? How to do four wheel alignment?

1. Drive the car to the positioning elevator, and the front wheel needs to stop in the middle of the loading plate for detection before positioning, including tire pressure, suspension and chassis detection;

2. Then carry out data detection, install sensors on the four wheels, fix the steering wheel and brake pedal, lift the car, and set the parameters for testing;

3. Finally, the positioning adjustment, according to the data, according to the degree of deviation, the four-wheel alignment data of each tire is adjusted accordingly, and the debugging is over, and the car can be inspected on the road.

1. The function of automobile four-wheel alignment is:

It is conducive to the car to maintain a stable straight line and light steering, and reduce the wear and tear of tires and steering parts during driving.

2. Under what circumstances do you need to do four-wheel alignment?

When driving the vehicle, you feel that the direction of the steering is heavy, shivering, misaligned, not homecoming, or you find that the tires are unilaterally worn, corrugated worn, block worn, eccentric wear and other abnormal wear and tear, as well as when driving, the car feels floating, trembling, swaying and other phenomena, you should do four-wheel alignment.

1) Tire pressure and tire tread wear: Uneven tire wear indicates a failure in certain aspects such as tires, steering or suspension. (There are many reasons why tires wear out irregularly and wear out too quickly.)

The most common reasons are improper inflation pressure, not regularly changing tires, improper driving habits, or incorrect alignment of the original four wheels. )

2) Wheel oscillation: Oscillation is a condition that causes unstable rotation of tires due to various reasons, and the oscillation of wheels and tires refers to irregular up-and-down or side-to-side movements. Left-right motion refers to the lateral oscillation of the wheel or tire, and up-down motion refers to the radial oscillation of the wheel or tire.

Vibration faults related to the oscillation can only be eliminated by looking for the ** of the oscillation.

3) Wheel deviation: Deviation refers to the deviation of the vehicle driving direction when the vehicle is driving on a straight road, and the steering wheel is not affected by any external force. Mistracking is usually caused by:

Tire structure (radial transverse force).

Improper fit or uneven wear of the tires.

Improper alignment of the front or rear wheels.

The steering valve is off-center.

Uneven brake adjustment or brake lag.

When doing four-wheel alignment, you must first drive the car to the locator, the two front wheels should be in the middle of the adjustment disc, cover the rear wheels with triangular rubber blocks, put down the handbrake, and install the infrared receiver on the four tires. Adjust the steering wheel to the middle position and fix it with the steering wheel fixture. Then turn on the computer, enter the system, click Diagnosis, at this time lift the vehicle until the left and right target disks appear to detect normal, stop lifting the vehicle, and close this page.

Click on the four-wheel alignment measurement, enter the vehicle information, select the manufacturer, here SAIC-GM-Wuling Rongguang as an example, click on the Rongguang, select the date, click on the four-wheel alignment. When the cart prompt behind you appears, push the cart backward until the cart stops, and when the cart is done backwards, push the cart forward until the computer shows that the measurement is over. Click the next button on the right side of the screen, and the front wheel data appears, from the data, this vehicle needs to be adjusted, and the data should be adjusted in the green normal range.

Remove the two front wheel adjustment disc fixing pins and use the wrench to adjust the directional tie rod bolts until the data is within the green range. When adjusting the data, for the sake of accuracy, try to adjust the data to 0, and the steering wheel must be in the middle position.

It needs to be done on the special equipment of four-wheel alignment, drive the vehicle to the equipment, use a special instrument to fix it on the tires of the vehicle, and then open the computer to connect the data and read the four-wheel alignment related data of the vehicle.

First, the motor vehicle is driven to the equipment, and the four-wheel alignment special instrument is used to fix on the tires of the vehicle, and then the computer is used to read the relevant data, query whether the data is normal, and when the data is chaotic and wrong, it is necessary to adjust the motor vehicle until the data adjustment is successful.

The specific method is as follows: 1. When the car is aligned with four wheels, you need to park the car in the appropriate card slot, so you must control the speed, listen to the guidance of the maintenance master, and tighten the handbrake and hang up the gear after parking the car; 2. When the car is aligned with four wheels, it is necessary to take care of the operation of the maintenance workers and do not let them damage the tires, because some hand-born repairmen are easy to prick the wrong position, and it will be troublesome to hurt the tires, so you should point it out in time; 3. When the car is aligned with four wheels, it is necessary to shake the tires by hand to check the chassis parts, check whether the steering rod, ball joint, swing arm, bearing, etc. are loose, and pay attention to the selection of model information, which is used as the basis for measuring whether the chassis data of the car is correct or not, so the choice of the model can not be wrong. After finding the corresponding model year, the effect is good.

Four-wheel alignment has two items: front wheel alignment and rear wheel alignment, while front wheel alignment includes four contents: kingpin camber, kingpin camber, front wheel camber and front wheel toe. Rear wheel alignment includes wheel camber and rear-wheel toe-in. The four-wheel alignment requires the use of professional instruments, that is, the four-wheel aligner, and the specific steps are as follows:

1. First of all, drive the vehicle to the locator, and the professional technician should inflate and deflate the tires and calibrate the tire pressure.

2. Turn on the computer to find the corresponding model and the correct wheel size to load the data, and then follow the computer prompts to counterweight the vehicle.

3. Then use the triangular rubber block to cover the rear wheel, put down the handbrake, and install the infrared receiver on the four tires. Adjust the steering wheel to the middle position and secure it with the steering wheel fixture.

4. After the preparation is completed, the vehicle is calibrated for the four-wheel angle, and then the information table of the four-wheel angle is obtained, and the technician adjusts the data obtained from the information table.

5. After the adjustment, the system also needs to be tested, which is the same as the detection steps before the adjustment, the system determines the position and the data is calculated by the rotation of the wheel direction, and then a test report is issued, and the data comparison before and after the adjustment is in the report, the green is still qualified, and the red is unqualified.

6. It is worth mentioning that the steering wheel of some cars is crooked after doing four-wheel alignment, if the technician dismantles the steering wheel to calibrate the angle of the steering wheel to make up for the deviation of the positioning data, it may bring potential safety hazards, which is not advisable. After the final four-wheel alignment is completed, a test run should be carried out to ensure that the problems that existed before the vehicle are eliminated.

Due to the installation of car tires, steering, suspension system and front and rear axles have a certain angle and relative position, with the increase of mileage, tire wear and some bumps, the angle and position of the original Bi Mao to fix will change, affecting the safety and stability of driving. At this time, we need to do four-wheel alignment. Many people know about four-wheel alignment, but they don't know how to do it.

How to do a wheel alignment.

1.To drive to the positioning elevator, the front wheels need to stop at the center of the loading plate for pre-positioning inspection, including tire pressure, suspension, and chassis inspection;

2.Then the detection of several hands is carried out, the sensors are installed on the four wheels, the steering wheel and brake pedal are fixed, the car is lifted, and the parameters are set for testing;

3.Finally, adjust the positioning. Depending on the data and the degree of deviation, the four-wheel alignment data for each tire is adjusted accordingly. After commissioning, check the road condition of the car.

What do I need to do for wheel alignment?

1.The car deviates, the steering accuracy deteriorates, the steering wheel is not correct, the tires are gnawed, and four wheels are needed to be aligned. Tyre eating refers to the different wear of the same tire on both sides, or the wear of the left and right tires is different.

2.Wheel alignment is also required after the suspension, steering, and other systems have been replaced or repaired.

Four-wheel alignment directly affects the safety and stability of the car. Doing four-wheel pairs can maintain the best angle between the tires and the body, reduce the wear between the tires and the steering parts during the driving process of the car, ensure the close combination of the tires and the ground, and keep the car running in a stable straight line.

How much does it cost to set the core mountain position for four rounds? You should go to a regular professional and technical repair shop or a 4S shop, but the charges of 4S shops are generally more expensive, and the cost of four-wheel alignment is about 300 yuan, or even higher. Some brand tire repair shops can also do four-wheel alignment, and the charge is relatively low, about 100 yuan.

However, it is more recommended to do it in the 4S store, because the 4S store has the corresponding parameter values of your model, and the data is more accurate.

Millions of car purchase subsidies.

Here's how:

1. When the car is aligned with four wheels, the person who needs to park the car in the card slot that is suitable for the balance and disadvantages, so you must control the speed, listen to the guidance of the maintenance master, and tighten the handbrake and hang up the gear after parking the car;

2. When the car is aligned with four wheels, it is necessary to take care of the operation of the maintenance workers and do not let them damage the tires, because some hand-born repairmen are easy to prick the wrong position, and it will be troublesome to hurt the tires, so you should point it out in time;

3. When the car is aligned with four wheels, it is necessary to shake the tires by hand to check the chassis parts, check whether the steering rod, ball joint, swing arm, bearing, etc. are loose, and pay attention to the selection of model information, which is used as the basis for measuring whether the chassis data of the car is correct or not, so the choice of the model can not be wrong. After finding the corresponding model year, the effect is good.

Because the installation and use of automobile tires, steering, suspension systems and front and rear left and right transmission shafts have a certain direction and relative position, with the improvement of driving mileage, tire wear and some bumps, the originally stable viewing angle and parts will change, which will directly affect the reliability and reliability of driving. At this time, it is necessary to do a four-wheel alignment.

Four-wheel alignment should be reliable, technically professional, technical after-sales maintenance shops or car 4S shops, but car 4S shops are widely charged, and the cost of a four-wheel alignment is around 300 yuan, or even higher. Some well-known brand tire business stores can also do four-wheel alignment, and the relativity of charging fees is relatively low, spending around 100 yuan. However, it is more recommended to do it in the car 4S shop, because the car 4S shop has the variable value corresponding to the relative value of your car series, and the data information is more accurate.

The process of doing four-wheel alignment for general cars is as follows:

1. Drive the car to the precise positioning elevator, and the front tire must stop in the middle of the wheel wheel to carry out the inspection before precise positioning, including tire pressure, suspension and automobile chassis inspection;

2. Then carry out data information inspection, put on the sensor on the four wheels, fix the steering wheel and brake plate of the car, stretch out the car, and set the main parameters for detection;

3. Finally, carry out precise positioning adjustment, according to the data information, according to the error level of the four-wheel positioning data information of each tire to adjust the corresponding adjustment, after the adjustment, the car can be inspected on the road.

And when the following happens, it means that wheel alignment must be done

1. When the car deviates from the direction, the steering precision decreases, the steering wheel is not right, and the tire eats, etc., four-wheel alignment must be done. Tire eating refers to the same tire, the wear of both sides is different, or the wear of the upper and lower tires is different.

2. After dismantling or overhauling the suspension, steering and other systems, it is also necessary to do four-wheel alignment.

Four-wheel alignment immediately endangers the safety factor and reliability of the car, doing four-wheel alignment can make the tire and the body maintain a better viewing angle, reduce the car in the driving process, the wear and tear between the tire and the steering parts, ensure the close connection between the tire and the road surface, and the car can maintain a good straight line. Therefore, it is necessary to carry out four-wheel alignment on time to ensure safe driving.

Millions of car purchase subsidies.