In order to quickly attenuate the vibration of the frame and the body, and improve the ride comfort and comfort of the car, the car suspension system is generally equipped with a shock absorber, and the automobile is widely used as a two-way action cylinder type shock absorber.
The shock absorber is a fragile accessory during the use of the car. The shock absorber works well and will directly affect the stability of the car and the life of other parts. Therefore, we should keep the shock absorber in good working condition. The following methods can be used to verify that the shock absorber is working well.
1. Make the car stop after driving for 10km on the road with poor road conditions, and touch the shock absorber casing by hand. If it is not hot enough, there is no resistance inside the shock absorber, and the shock absorber does not work. At this time, the appropriate lubricating oil can be added, and then the test is carried out. If the outer casing is heated, the inside of the shock absorber is lacking in oil, and sufficient oil should be added, otherwise the shock absorber is invalid.
2. Press the bumper firmly and release it. If the car has 2~3 jumps, the shock absorber works well.
3. When the car is driving slowly and braking urgently, if the car vibration is severe, it indicates that the shock absorber has a problem.
4. Remove the shock absorber and erect it, and clamp the lower end connecting ring on the vise. Pull the damping rod several times. At this time, there should be stable resistance. The resistance to pull up should be greater than when pressing down. Resistance, such as unstable resistance or no resistance, may be due to lack of oil inside the shock absorber or damage to the valve parts. Repair or replacement of parts should be performed.