What Should Be Done When The Hydraulic Pump of a Small Excavator is Severely Worn?

When the hydraulic pump of a small excavator is severely worn, it will have a fatal impact on the small excavator. Therefore, the excavator should solve these problems in time. As a Caterpillar Bucket Teeth Manufacturer, share it with you. When troubleshooting the hydraulic pump of a small excavator, find the cause of the failure from the following three aspects:

(1) Check the leak in the boom cylinder

The simple way to repair the hydraulic pump of an excavator is to raise the boom to see if there is an obvious free fall. If the droplets are obvious, remove the cylinder and check if the seal should be replaced.

(2) Check the control valve

First clean the safety valve and check whether the spool is worn. If worn, it should be replaced. If there is no change after the safety valve is installed, check the wear of the control valve stem. The clearance limit is generally 0.06mm. If it is severely worn, it should be replaced.

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What to do when the hydraulic pump of a small excavator is severely worn

(3) Pressure measurement of hydraulic pump

If the pressure is low, then adjust, and the pressure is still not adjusted, indicating that the hydraulic pump is severely worn.

Do not panic when the small excavator is worn out. During the use process, you should also pay attention to the correct use and maintenance of the small excavator. Regularly add or replace hydraulic oil to maintain the cleanliness of hydraulic oil and strengthen daily inspection and maintenance.

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