4-wheel alignment plays a very important role in the high-speed driving of the car. The majority of car owners must not ignore it. After the car has been running for a period of time, due to various reasons, there will be abnormal wear of tires, accelerated wear of parts, heavy steering wheels, vehicle deviation, and increased fuel consumption. These phenomena are all the reasons for the decline in vehicle performance. To eliminate this phenomenon and ensure the stability of the vehicle, the effective method is to do 4-wheel alignment. The dynamic 4-wheel alignment instrument can not only ensure the high-speed driving of the vehicle, but also extend the service life of the tires, while saving fuel consumption.

4-wheel alignment refers to the alignment angle of the suspension system when the vehicle leaves the factory. The alignment angles of these dynamic 4-wheel alignment instruments are also pre-set according to the design points to ensure the safety of the vehicle. The above angles refer to the angles between the suspension system and various active parts. Maintaining the correct 4-wheel alignment angle can ensure the straightness, maneuverability and steering system recovery of the vehicle, prevent the bearing from being damaged and losing precision due to unreasonable force, and ensure that the tire is closely connected with the ground, reduce unreasonable tire wear, and ensure the stability of the car when turning.

The purpose of 4-wheel alignment is to diagnose the above discomfort symptoms of the vehicle with an alignment angle measuring instrument and give treatment. It is divided into front wheel alignment and rear wheel alignment. Front wheel alignment includes four contents: kingpin caster angle, kingpin inclination angle, front wheel camber angle and front wheel toe. Rear wheel alignment includes wheel camber angle and rear wheel toe. Under normal circumstances, a new car should be aligned after 3 months of driving. After that, the tires should be replaced every 10,000 kilometers. If a collision occurs, a 4-wheel alignment should be done in time.

The above discusses the importance of dynamic 4-wheel alignment for cars. Next, let's talk about the issues that should be paid attention to when doing 4-wheel alignment. When choosing a car maintenance shop, you must choose a professional car maintenance shop, because only experienced and skilled masters with advanced 4-wheel alignment can provide the best service for your car. As the suspension system evolves from simple to complex, its structure becomes increasingly complex, and the corresponding requirements for 4-wheel alignment angles are getting higher and higher. Therefore, 4-wheel alignments specified for certain models have appeared. 4-wheel alignments are not instruments used to adjust and change the alignment angle. They are only used to measure the alignment angle. Then, the master uses this as a reference and compares it with the angle set by the original factory to adjust and change the alignment angle to restore it to the original design angle.

In addition, the important factors that affect the dynamic 4-wheel alignment are: (1) driving at high speed on uneven roads; (2) the front wheel is impacted by external forces, such as going up sidewalk steps; (3) often turning the steering wheel to the ground; (4) the tire pressure exceeds the standard range. Therefore, when maintaining your car, car owners should pay attention to the following points: (1) when passing obstacles, try to drive slowly and take detours; (2) the tread pattern of the front tire must be consistent, so as to ensure the best driving performance and prevent the occurrence of insufficient adhesion, noise, side slip, uneven wear and other phenomena; (3) after updating or repairing the tire, be sure to perform a tire dynamic balance test.