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Home>>news>>The Common Faults Of Used Excavator

The Common Faults Of Used Excavator

Tags: excavator buy europe machinery used excavators2014-01-26

Firstly is the cause of the "jump out". The used excavator on the W4-60 of variable speed drives mechanism of wear and tear. This kind of drive mechanism is depend on the sliding teeth set in a fixed gear set for axial movement, also driven gear meshed with the block to realize the shift. In the frequent process, the foregoing meshing gear tooth face is easy to be ground into cone, which causes its meshing performance degradation and lead to "jump out" of the used excavator.

The decreased performance of self-locking mechanism is to prevent "jump out" of the transmission. The transmission Ⅱ and Ⅲ, Ⅳ and Ⅴ of the used excavator at the top of the box cover inside the hole and transmission Ⅰ. The steel ball and spring with self-locking have equipped in the reverse gear fork. When the function of the elastic weakened or broken springs of the position self-locking, the self-locking performance of self-locking mechanism will decrease until disappear of the used excavator, which caused "jump out" of the transmission. At the same time, positioning steel ball groove on the shaft or fork if it appears wear away, it will cause "jump out" of the transmission, too.

Due to the job nature and its own design of used excavator cause the load suddenly changes. The load suddenly changes also can lead to the transmission "jump out". When the road is bumpy, the machine is driving downhill or the improper driving route will make the external load changes suddenly. This kind of sudden change of the load will be through the wheel, shaft effect on the transmission gears meshing gears. So as to make the gear meshing gear by axial thrust and release, and causing "jump out" of the transmission of the used excavator. When the used excavator is driving on the ramp, if the operation is improper, this will also lead to "jump out" of the transmission.

All of these common faults of the used excavator should be prevented by taking some measures. The first step is operating the machine through strict operational procedures and driving point so as to avoid reducing the pair of the wear and gear. The second step is following the maintenance system strictly to strengthen the shifting device maintenance for the used excavator. When the shifting device truss connections are improper, you should adjust it to ensure the shift device performance works well. In the process of using the used excavator, if the transmission appears the "jump out" phenomenon, the machine should be stopped timely and find out the reasons so as to take some emergency disposal method to deal with the problem.

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