Common shock absorber failure in ductile casting manufacturer

Shock absorbers are vulnerable parts in the use of automobile in agricultural casting manufacturers. The working quality of shock absorbers will directly affect the stability of automobile driving the service life of other parts. Therefore, we should make the shock absorbers in good working condition. The following methods can be used to check whether the shock absorber works well - shock absorber accessories.

1. The agricultural casting manufacturer stops the car after driving for 10km on the road with poor road conditions touches the shell of the shock absorber by hand. If it is hot enough, there is no resistance inside the shock absorber the shock absorber does work. At this time, the proper lubricating oil can be added the test can be carried out again. If the shell is heated, the oil in the shock absorber is insufficient sufficient oil should be added; otherwise, the shock absorber is invalid.

2. Press the bumper firmly, then release it. If the car has 2-3 jumps, the shock absorber works well.

3. When the agricultural casting manufacturer drives the car slowly brakes in an emergency, if the car vibrates violently, it indicates that there is a problem with the shock absorber.

4. Remove the shock absorber to make it stand upright, clamp the lower connecting ring on the vise, pull press the shock absorber rod several times, at this time, there should be stable resistance, pull upward, the recovered resistance should be greater than the resistance when pressing downward. If the resistance is stable there is no resistance, it may be the lack of oil inside the shock absorber the valve parts are damaged, repair replace the parts.

After the problem failure of the shock absorber is determined, check whether the shock absorber leaks oil has traces of old oil leakage. If oil leakage is found, first tighten the nuts of the oil cylinder head. If the shock absorber still leaks oil, the oil seal sealing washer may be damaged invalid, the new seal should be replaced. If the oil leakage still cannot be eliminated, pull out the damping rod. If you feel that there is a card stuck the weight is different, further check whether the clearance between the piston the cylinder barrel is too large, whether the piston rod of the shock absorber is bent, whether the surface of the piston rod the cylinder barrel are scratched pulled.

If the shock absorber is free of oil leakage, check whether the connecting pin, connecting rod, connecting hole, rubber bushing, etc. of the shock absorber are damaged, desoldered, cracked fallen off. If the above inspection is normal, the shock absorber shall be further disassembled to check whether the fit clearance between the piston the cylinder is too large, whether the cylinder is strained, whether the valve seal is good, whether the valve disc the valve seat fit tightly, whether the extension spring of the shock absorber is too soft broken. According to the situation, the method of grinding replacement shall be adopted for repair.

In addition, the vibration damper will produce noise in actual use, which is mainly caused by the collision between the vibration damper leaf spring, frame shaft, damage falling off of the rubber pad, deformation of the dust-proof cylinder of the vibration damper, insufficient oil, etc. the cause shall be found out repaired.