Everybody come in and help me see if my four wheel alignment data is normal

Four-wheel alignment analysis data method:

1. Parameter judgment: the camber of the left and right single wheels does not exceed 110, the total camber, the left and right single wheel toe left and right, and the total toe left and right.

2. Color judgment: the instrument shows that green is normal, and red is abnormal.

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).

Recently, some car owners came to report that they had killed me after doing a four-wheel alignment. Wheel alignment is a maintenance project, not maintenance, and does not need to be done at a fixed time. If the vehicle does not deviate or the tires are badly worn, the wheel alignment is not used.

Don't do the four-wheel alignment casually, if it is not done accurately, it will cause wear and tear to the vehicle, and in serious cases, it may kill the people in the car.

The four-wheel alignment data is correct, but the reason for the deviation is:

1. When installing a single-sided tire, do not pay attention to the direction of the pattern, if there is a situation in the same direction, it may lead to deviation;

2. The frame has been deformed due to a serious accident, and the difference between the front and rear wheelbases on both sides has exceeded the standard range;

3. The tire patterns on the left and right sides are not the same, and it can also be said that the tire wear on both sides is different, and there will be a large difference in air pressure;

4. The deformation of the spring in the front shock absorber leads to different cushioning of the tires on both sides. The failure of the front shock absorber will cause the vehicle to be stressed unevenly when driving, one high and one low, resulting in deviation.

The cost of vehicle four-wheel alignment is different in each region, mainly according to the quality of four-wheel alignment, some repair shops do four-wheel alignment, but the quality is not very good, the owner must not be greedy when doing four-wheel alignment. Generally speaking, the ** of ordinary cars in the maintenance shop is about 200 yuan and 400 yuan, and if it is done in the 4S shop for four-wheel alignment, it may take about 1000 yuan, but the quality will be much better.

The four-wheel aligner has a display screen, and the left and right sides of the display display display show the data of the left and right sides respectively, usually the green area range is displayed as standard, and the red area is beyond the standard and needs to be adjusted.

Step 1: Car owners should not only pay attention to whether the four-wheel alignment data is in the green zone, but also pay attention to whether the data displayed on the left and right is consistent. If the data on the left and right sides are not consistent, even if the positioning data is within the green zone and looks standard, there may be driving performance problems when actually driving the vehicle.

Step 2: Check that the vehicle's four-wheel alignment data meets the standard, the four-wheel tire wear is basically close, the four-wheel air pressure is also the same, and the four-wheel dynamic balance is no problem, but the vehicle still deviates. The final solution was to solve the problem of mistracking by repeatedly changing the tires.

Most of the time, four-wheel alignment can be done in half an hour. However, in fact, it will be affected by objective factors such as mechanical technology and vehicle status, and it may take about an hour to complete if the speed is slow.

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 check the data, install sensors on four wheels, fix the steering wheel and brake pedal, lift the car, set the main parameters for testing;

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

How to judge the data graph by four-wheel alignment.

The general adjustment parameters for wheel alignment include toe, camber, kingpin caster and kingpin caster.

Toe-in refers to the difference between the front and rear faces of the front wheels on the lateral surface of the vehicle. Toe-in problems are when a car's tires are flipped in or out. In general, it is very important to see whether the tires are turned in or out from the top down.

Whether the toe is properly adjusted plays a decisive role in the wear of the front tires of the car, and also has a great impact on the handling performance of the car. In order to maintain the proper toe-in values of the front wheels, it is necessary to perform regular four-wheel alignment. Four-wheel alignment toe-in adjustment refers to adjusting the distance difference between the front and rear wheels to meet limited toe-in values, most toe-in values between 0-12mm are normal.

The camber angle of the wheel refers to the angle between the center line of the sock wheel and the macro line of the plumb code; The caster angle of the kingpin refers to the angle formed by the inward inclination of the kingpin axis in the transverse plane and the plumb line of the die; The caste angle of the kingpin refers to the angle between the kingpin axis and the plumb line when the kingpin axis is tilted backward in the longitudinal plane. If you need to adjust the camber of the wheel and the caster of the kingpin at the same time, adjust the camber of the wheel by adjusting the caster of the kingpin first.

Millions of car purchase subsidies.

Generally, when doing four-wheel alignment, it is normal for the machine to display green, and it is not normal to display red. Each car has different dimensions and chassis settings, so there is no exact range for this data. Drivers can do four-wheel alignment, so that the data displayed on the machine can be used to determine whether the rot resistance is normal.

The four wheels of the car have four-wheel alignment data, and the four wheels of the car are not simply perpendicular to the ground.

The front wheels have toe-in, inclination, and the rear wheels also have inclination.

If the wheel alignment data is not correct, it may be tire wear or mistracking.

Usually after some bumpy roads or speed bumps, the data of four-wheel alignment may change, and riders should do four-wheel alignment regularly.

When doing four-wheel alignment, Wang Mu is a core, and he must go to a store that specializes in poor digging equipment and professional technicians. If there is only professional equipment and no professional technicians, the adjusted data will be inaccurate.

When passing through some bumpy roads or speed bumps, reduce the speed as much as possible to reduce the impact of suspension and wheels.

During normal maintenance, the car can be lifted with a crane and the wheels can be checked for eccentricity. If the wheels are eccentric, there is generally a problem with the four-wheel alignment data.

Millions of car purchase subsidies.

Generally, when doing four-wheel alignment, it is normal for the machine to display green, and it is abnormal to display red. The size and chassis settings of each car are different, so there is no exact range of this data, and riders can do a four-wheel alignment, so that they can judge whether it is normal through the data displayed on the machine. The four wheels of the car have four-wheel alignment data, and the four wheels of the car are not simply perpendicular to the ground.

The front wheels have toe-in, inclination, and the rear wheels also have inclination.

If the wheel alignment data is not normal, the car may have tire deviation or misalignment.

When passing through some bumpy roads or deceleration belts, it may cause the four-wheel alignment data to change, so riders should do the four-wheel alignment regularly.

When doing wheel alignment, be sure to go to a store with professional equipment and professional technicians. If there is only professional equipment and no professional technicians, then the data produced by the sail adjustment is also inaccurate.

When passing over some bumpy roads or speed bumps, be sure to pass at as low speed as possible, which will reduce the impact on the suspension and wheels.

In the usual maintenance, you can use the lift to lift up the car to check whether the wheels have eccentricity and grinding phenomenon, if the wheels have eccentric wear phenomenon, it is generally a problem with the four-wheel alignment data.

Millions of car purchase subsidies.