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Inspection and maintenance of automotive shock absorbers explain yourself
Hits:2290         Date:2013/10/29
In order to make the frame and body vibration decay rapidly improve vehicle ride comfort and comfort, vehicle suspension systems are generally equipped with shock absorbers, is currently widely used in the car is dual acting telescopic shock absorbers.
Automobile shock absorber is used in the process of wearing parts , shock absorbers work is good or bad , will directly affect the smooth running cars and other parts of life , so we should make the shock absorber always in good working condition . The following methods can test whether the work of a good shock absorber .
1 , so that the poor condition of the road car driving on the road for 10 km Parking , touch damper housing , if not hot enough , indicating internal shock absorber without resistance , shock absorbers do not work. At this point , you can add the appropriate lubricant, and then test, if the shell fever, compared with internal shock absorber oil, should add a little oil ; otherwise , indicating shock absorber failure .
2 , firmly press the bumper, and then release , if the car has 2 to 3 times jump, then the shock absorbers work well .
3 , when the car slowly driving and emergency braking, if the car vibrate more intense , indicating shock absorber problem.
4 Remove the shock absorber in the upright position , and the lower end of the connecting ring clamp on vise , pull compression damping lever several times , this time should be stable resistance , pull up the recovery should be greater than the resistance to downward pressure the resistance , such as resistance to unstable or no resistance , it may be short of oil damper or valve internal parts damage should be repaired or replaced parts.
In determining the shock absorbers have a problem or failure, shock absorbers should first check whether there is oil or traces of old oil spills .
If it is found leaking , first tighten the cylinder head nuts, if still leaking shock absorbers , it may be oil seals, gaskets would damage should be replaced with new seals . If you still can not eliminate oil spills, damping lever should be pulled out , if they feel there is not one o'clock issuing or severity , and further examination of the piston and cylinder gap is too large , the shock absorber piston rod without bending , piston rod and the cylinder surface is scratched or pull marks .
If the shock does not leak phenomenon, you should check the shock absorber connection pin, connecting rod, connecting hole , rubber bushings, etc. for damage , Desoldering, rupture or detachment of the Department . If these were normal , it should be further decomposed shock absorbers, check the piston and cylinder with the gap is too large cylinder with or without injury , the valve seal is good , valves and valve seat are tight fitting and reduce the stretching vibration absorber spring is too soft or broken , depending on the circumstances taken grinding or replacement parts approach repairs.
In addition , the shock absorber will appear in the actual use failure beep , which is mainly due leaf springs and shock absorbers , frame or shaft collision cushion shock damage or loss, and dust tube deformation , fluid lack of causes, reasons should be identified , be repaired.