A failure problem often occurs in small excavators is the situation of digging weakness, and the damaged parts of our excavators are different in different states. What is the main reason for the weakness of excavators? Let's take a look.

When the power of the small excavator is very abundant and the operation is relatively normal, what is the reason for the weak state of excavation? The hydraulic pumps on our excavators will be equipped with pilot gear pumps. The main function of equipped with this pump is to participate in the variable of the hydraulic pump and the multi-channel distribution after the pilot oil is turned over, so that the excavator can reverse. However, if the excavator gear pump is subjected to certain wear and serious wear during the operation, our hydraulic pump will be in a state of low flow. At this time, the valve stem can not be reversed, and when there is a lack of flow, our excavator will be weak in digging when it is knocked open. We want to improve such a situation, we only need to replace the pilot gear pump after setting the pilot safety valve and so on.

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