Excavator John Deere AT310587 distributor hydraulic proportional solenoid valve

      The relief valve of the excavator is a key safety application guarantee for the pressure pipeline and pressure vessel. In order to ensure the normal operation of the safety valve and extend the service life of the safety valve, it is necessary to regularly check whether the safety valve in operation is leaking, blocking, spring rust and other abnormal phenomena, and pay attention to whether the locking nut of the adjusting screw sleeve and the adjusting ring tightening screw are loose. If any problem is found, take proper maintenance measures in time.

Although the relief valve can have a good adjustment and protection effect on the excavator, the relief valve itself will also fail

How to quickly judge the good and bad of excavator relief valve?

Divided into three steps:

1. Put the relief valve upside down and pour gasoline into the middle of the spool of the relief valve;

2. If the oil goes down quickly, it means that the relief valve is broken;

3. If the oil will not penetrate into the inside, it means that the relief valve is good.

The relief valve requires routine maintenance:

1. Keep the valve clean: no scale, no adhesion, no rust, etc.;

2. When there is leakage: can not increase the load to reduce leakage;

3. Regular inspection, cleaning, grinding, testing and adjustment are required.