The common damages of hydraulic shock absorber include oil leakage of shock absorber, aging and shedding of top rubber of shock absorber, and fatigue softening of shock absorber spring.
Oil leakage of shock absorber: When the vehicle is running, the shock absorption effect will be greatly reduced. Until the hydraulic oil leaks out, the car will have no shock absorption. Unilateral damping oil leakage will cause the body to be high and low, causing the failure of driving deviation.
Aging and falling off of the top rubber of the shock absorber: After the top rubber is aging and falling off, when the vehicle shakes up and down, the shock absorber will directly collide with other parts, make abnormal noises, and may further damage other parts.
Damping spring fatigue softening: the extension capacity of the spring decreases. When the car sinks, the damping spring cannot give the vehicle a greater reaction force. The sinking speed of the vehicle will be faster than normal, and the effect of damping and buffering will be reduced. Because the damping spring cannot sufficiently slow down When the body sinks, the hydraulic pressure received by the shock absorber will increase, which quickly causes the shock absorber to leak oil.