1. For a truck that often travels on mountain roads or country roads, when it travels more than100000 kilometers, we may find signs of broken frame, heavy steering, abnormal tire wear and running deviation (these phenomena are generally precursors of frame deformation);

2. For an ordinary car, the frame is the matrix of the whole car, which supports and fixes most parts and assemblies of the car, such as engine, transmission system, suspension, steering system and cargo box. And it depends on the framework to play the corresponding function. In general, the main reason for the deformation of the frame is that the car is overloaded on the road with large height difference. Due to the different vertical positions of automobile wheels, the frame will be deformed, resulting in certain plastic deformation. Or in the normal driving process, one side of the front wheel is subjected to great resistance, so that the frame is obliquely deformed; When a car collides, it will also cause the deformation of the frame to varying degrees; In the process of use, due to improper traction, the car fell into a mud pit and other conditions, leading to rollover accidents, which is also one of the main reasons for the deformation of the frame;

3. For serious frame deformation, it can generally be directly detected, which is convenient for timely elimination; Once the frame is deformed, you should go to a professional garage for repair as soon as possible. Generally, the basic method is to disassemble the whole vehicle, reshape it or replace the corresponding parts, and then rivet it again. For serious frame deformation, the frame assembly should be replaced at the first time to completely eliminate this hidden danger.

It is easy to find the broken frame when we check the car regularly. For cars that drive on roads with poor road conditions all the year round, they should be inspected frequently. Once the frame is broken, it must be welded or riveted again, and the materials must be consistent during welding, otherwise the welding quality is difficult to guarantee, and it is likely to break again at the joint.