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The common fault and elimination method of overflow valve
time2018/01/09
1. The fluctuation of system pressure
Reason: hydraulic pressure oil is not clean, and the screw is not tight, and the valve core movement is not smooth.
The elimination method: Clean the oil tank regularly, and fasten the screw.
2. No system pressure
Reason: The orifice of valve core is blocked , and the quality of valve assembly is poor, and the spring is damaged , and the valve core cannot reset.
The elimination method: Clean the orifice, and replace the spring
3. The system pressure cannot rise
Reason: The valve core wear down , and has leakage
The elimination method: Replace the valve core
4. The pressure is rise or drop suddenly
Reason: The movement of valve core is not semsitive , and the valve orifice is blocked
The elimination method: Clean the valve body and orifice.