Automobile shock absorber if leakage phenomenon, the shock absorber, is a dangerous thing. Then, once found leaking, to make timely remedial measures.Key inspection item in the seal gasket, gasket rupture damage, the tank cover,check whether the spare parts loosening of nuts.
If found leaking, first tighten the oil cylinder head nuts, if the shock absorber still leak, it may be the oil seal, gasket damage failure, should be replaced with a new seal. If you still cannot eliminate oil leakage, should pull the damping rod, if you feela hairpin or weight not temporarily, further check the gap between piston and cylinder is too big, shock absorber piston rod with and without bending, the piston rod and the cylinder surface is scratched or stretch marks.
If the damper no oil leakage phenomenon, you should check the shock absorberconnecting pin, the connecting rod, the connecting hole, rubber bushings are damaged, sealing off, break or fall off. If the examination is normal, should befurther decomposed damper, clearance inspection between piston and cylinder is too big, there is no strain cylinder, valve seal is good, and the valve seat valve jointis tight, and extension spring and damper is too soft or broken, by grinding or replacement. Repair according to condition.
In addition, there will be the sound damper fault in actual use, which is mainly due to the collision damper and spring, frame or shaft, rubber pad damage or loss andshock absorber cylinder deformation caused by dust, oil and other issues, should identify the reasons, repair.
Shock absorber should work performance test in a special test rig in the inspectionafter the repair, when the resistance frequency at 100 ± 1mm, the rebound and compression stroke resistance should accord with the regulations. Process the maximum resistance for 392~588N; Dongfeng rebound maximum resistance to 2450~3038N, the maximum resistance to 490~686N compression stroke. If there is no test conditions, we can also use an empirical approach, namely with the bottomwith an iron rod into the absorber rings, with the feet stepping on its two ends, the hands hold the rings on the reciprocating pull 2~4 times, when to pull the large resistance, downward pressure does not struggle, and tensile resistance recoverycompared with before repairing, no idle, indicates that the absorber is normal.
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Post time: May-09-2017