R900771731 Excavator solenoid valve for R900771731 solenoid valve

The maintenance of excavator solenoid valve mainly includes the following aspects:

Regular inspection and cleaning: regularly clean the inside and outside of the solenoid valve to prevent dust and sundries from entering the solenoid valve and affecting its normal work. Pay special attention not to damage the sealing surface when cleaning.
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Replace seals and springs: replace the seals and springs in the solenoid valve regularly to ensure the normal operation of the solenoid valve. The wear of seal will affect the sealing performance of solenoid valve, and the relaxation of spring will affect the reset of valve core.
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Check electromagnets and coils: regularly check whether electromagnets and coils work normally to ensure that there is no short circuit or open circuit. The failure of electromagnet and coil will cause the solenoid valve to fail to work normally.
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Replace hydraulic oil: replace hydraulic oil regularly to ensure the cleanliness and normal circulation of hydraulic oil and prolong the service life of solenoid valve.
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Check wiring and oil leakage: regularly check whether the wiring of solenoid valve is loose and whether there is oil leakage in hydraulic system. Loose wiring or oil leakage will affect the normal operation of solenoid valve.
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Pressure and flow inspection: regularly check the flow and pressure of the hydraulic system to ensure that it is within the normal range. Abnormal pressure and flow will lead to unstable operation of solenoid valve.
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Installation of filter: It is recommended to install a filter before the solenoid valve to prevent impurities from entering the solenoid valve and affecting its normal operation. At the same time, installing a barometer can know the pressure of the pipeline in time and prevent the solenoid valve from being damaged due to excessive pressure.
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Avoid the use of overpressure: during the working process, pay special attention to the barometer to ensure that the working pressure does not exceed the rated pressure and the working pressure difference is within the rated pressure difference range. Exceeding the rated pressure or differential pressure will cause damage or leakage of the solenoid valve.
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