Automobile shock absorbers China qili motorcycle shock absorberare vulnerable parts. The shock absorber works well, which 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. Shenzhen Auto Maintenance tells everyone that the following methods can be used to check whether the shock absorber is in good working condition.
1. Make the car stop after driving 10km on the road with poor road conditions and touch the shock absorber shell with your hands. If it is not hot enough, it means that there is no resistance inside the shock absorber and the shock absorber does not work. At this time, you can add appropriate lubricating oil, and then perform the test. If the outer shell heats up, there is a shortage of oil inside the shock absorber, and enough oil should be added; otherwise, the shock absorber has failed.
2. Press the bumper firmly and then release it. If the car has 2-3 jumps, the shock absorber is working well.
3. When the car is driving slowly and braking urgently, if the car vibrates violently, it means there is a problem with the shock absorber.
4. Remove the shock absorber and stand it upright, and clamp the lower end connecting ring to the vise, and then forcefully pull the shock absorber rod several times. At this time, there should be stable resistance. The resistance of pulling upwards (restoring) should be greater than pressing downwards. The resistance at the time, such as unstable or no resistance, may be due to lack of oil inside the shock absorber or damage to the valve parts. Repair or replacement parts should be carried out.
After confirming that the shock absorber has a problem or failure, first check whether the shock absorber leaks or has traces of old oil leakage.
Oil seal washer, sealing washer ruptured and damaged, and oil storage cylinder head nut was loose.
If oil leakage is found, first tighten the cylinder head nut. If the shock absorber still leaks, the oil seal and gasket may be damaged and invalid, and new seals should be replaced. If the oil leakage still cannot be eliminated, pull out the damping rod. If you feel a hairpin or change in weight, check whether the gap between the piston and the cylinder is too large, whether the piston connecting rod of the shock absorber is bent, and the piston connecting rod Whether there are scratches or pull marks on the surface and cylinder.
If there is no oil leakage from the shock absorber, check the shock absorber connecting pin, connecting rod, connecting hole, rubber bushing, etc. for damage, desoldering, cracking or falling off. If the above inspection is normal, the shock absorber should be further disassembled to check whether the matching clearance between the piston and the cylinder is too large, whether the cylinder is strained, whether the valve seal is good, whether the valve clack and the valve seat are tightly fitted, and whether Whether the extension spring of the vibrator is too soft or broken, it should be repaired by grinding or replacing parts according to the situation.
In addition, the shock absorber will have noise failure in actual use, which is mainly due to the shock of the shock absorber and the leaf spring, the frame or the axle, the damage or fall of the rubber pad, the deformation of the shock absorber dust tube, and the lack of oil. If it is caused by other reasons, the cause should be found out and repaired