Causes and methods of pressure relief of small excavator arm

1, analyze the temperature of the working environment of the small excavator and also analyze the maximum load that the working object of the small excavator can bear.

2. After making an accurate judgment, the appropriate brand of hydraulic oil is selected according to the ambient temperature of the small excavator and the load conditions of the small excavator.

3, and regularly replace the maintenance of the filter element, while paying attention to the purchase of genuine hydraulic oil.

4, when the phenomenon of arm drop occurs in the operation, you can first reduce the pressure of the boom (less than the normal pressure), and observe whether the boom will fall quickly?

5, if the falling speed is very fast, it is recommended to replace the boom oil seal.

6. If the fault still exists after replacing the oil seal, it is necessary to check the boom return oil safety valve.

7. Check the pressure value of the pump valve group of the excavator.

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