When using a punching machine, we sometimes find that there is no pressure output. What should we do in this situation?

We need to replace the hydraulic pump. If there is still no pressure after replacing the hydraulic pump, it may be a problem with the low-pressure relief valve. If the low-pressure relief valve restricts the valve core and there are scratches on the surface of the steel ball, we need to replace the steel ball.

After replacing everything and finding that it still has no effect after installation, we can focus entirely on the pressure control unit of the punching machine, blocking the pressure control unit, the control unit leading to the punching, the single output interface, the safety valve 2.5, and the pneumatic hydraulic pump. Let's see if the repaired low-pressure relief pump is not working well. If the relevant spare parts cannot be replaced and the low-pressure relief valve is simply blocked, then why can't the low-pressure relief pump work?

In order to better diagnose the problem with the punching machine, we blocked the outlet of the low-pressure relief valve, the punching control ports of the low-pressure pump and high-pressure pump, and the electromagnetic directional valve located on the right. The oil outlet of the young blade was intelligently unloaded from the high-pressure relief valve and eventually returned to the oil tank. Then, we replaced the equivalent high-pressure relief valve, and the problem has been solved.

When there is a problem with the punching machine, we need to find the root cause to solve it. Only by using and maintaining it correctly can we try to avoid the occurrence of problems as much as possible.

Article source: Digital leather punching machinehttp://www.hslichuang.com/