How often shall we replace the shock absorber? when shall we replace the air spring suspension on the car?
Regardless of the type of shock absorber, the damping force is attenuated as long as it is mounted on a car. However, it is impossible to judge the degree of attenuation by a certain traveled kilometers or how many years have elapsed. Mainly because of driving methods, roads, climate, carrying capacity, use time and the number of full load or even overload, and so on, resulting in different degrees of damping of the shock absorber. And its attenuation is an extremely slow process. Even a very experienced driver can hardly judge the degree of attenuation of the shock absorber.
The mileage and the service life of the shock absorber are generally not regulated. However, in order to make the user enjoy the driving pleasure more safely and comfortably, it is necessary to confirm the inspection at the service station and the do annual inspection of the vehicle in addition to the daily inspection by the user. It is recommended to replace the shock absorption as soon as possible if the following conditions occur.
1, when the high acceleration, the head gain ground get higher
2, the bow down forward tilt get lower when braking
3, after the continuous driving, the outer cylinder does not get hoter
4, the upper and lower vibrations cannot be stopped very quickly.
5, when checking the appearance of the shock absorber: oil leakage – the outer cylinder has more oil traces
6, the telescopic is not smooth – the piston rod bending failure
7, the shock absorber is pulled in a straight state several times, no obvious resistance
8, the outer cylinder aliminum cover dust cover boot has obvious hard bump depression damage