Time:2023-05-10 16:56:31 Browse: 120
1 、Pump damage, slipper damage or ski and pole ball head seal damage; Swash plate wear; Plunger and cylinder hole wear; Variable mechanism failure; Oil distribution disc wear or cylinder oil distribution face wear; Pump LS valve wear, pressure truncation valve wear, constant power valve wear. Solution: Replace the pump.
2、Pressure true or false judgment. There is actual pressure, but it is not displayed. The pressure gauge switch is not opened. A large number of pressure gauges do not show low pressure, change the range suitable for the pressure gauge. Pressure gauge damaged, change the pressure gauge.
3、Motor steering wrong Change motor steering, pump steering wrong, can not absorb oil, there is no pressure system. Motor steering wrong, some hydraulic system will lead to pump damage. Therefore, before starting the new pump, the correct steering of the pump should be made clear, and the pump shaft should be climbed by hand to make the suction pipe of the pump full of oil; Between the inlet and outlet of the pump, connect the appropriate diameter reverse short circuit single valve.
4、Hydraulic cylinder used for a long time, it is possible to leak, it is possible to string cavity.
5、Pressure regulating valve is used to adjust the pressure range of hydraulic press. If it fails, it will also cause depressurization.
6、If the pressure relief valve of the four-column hydraulic press is broken, there will be a pressure drop.
7、The oil inlet valve leaks, resulting in oil reflux in the upper chamber.
8、Hydraulic press check valve wear, reverse leakage pressure drops.
Solution: replace the pump; Check the oil level and fill the oil; Check the inlet and outlet tubing for element leakage. If there is leakage, it should be excluded.
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