Guangdong Honggang Intelligent Equipment Co., Ltd.   (Focus on Hydraulic Cutting Machine Manufacturing Since 1994)
honggang cutting machine

0086 15918086545
Home > Resources > F.A.Q > How to handle the situation where the press platen can not go up?


How to handle the situation where the press platen can not go up?

How to handle the situation where the press platen can not go up?

However, no matter how good the quality of the mechanical products is and how well it is maintained, there will always be some size failures after several years of use. Cutting machine also belongs to a class of mechanical products, so after many years of use will be more or less failure, the more common failure is: (do not move) does not go up nor down, we will come to the specific

First of all, we divide the fault into three major sections:
1, mechanical failure 2, electrical system failure 3, hydraulic system failure.

Mechanical failures are not discussed here, because the shields around the machine are disassembled, and the personnel who understand the mechanics can see it with naked eyes. Here we focus on electrical and pressure. To know that any failure in electrical and pressure generation will result in the machine not going up or down, then we must first determine whether it is an electrical fault or a hydraulic fault. Specific methods: Check each step below to ensure that the pump motor is rotating forward.

The first,
Adjust the setting bracket to the empty position (without pressing any switch) to start the pump motor, press the punch button - see if the descending solenoid valve is lit, and press the emergency stop button - see if the rising solenoid valve is lit, if the solenoid If the valve light is on without any action, the fault is in the pressure system. If the solenoid valve is off, check the circuit.
Second, start the pump motor, unplug the electromagnetic valve's wiring plug, and directly use the ant wire cutter to move the battery valve, indicating that there is a problem with the circuit. No action, check the hydraulic system.

First, electrical faults are generally:
1, the button is damaged
2, the trip switch is damaged
3, The relay burns out, and generally it can be seen from the outside that there are contacts that have been burnt black.
4, the line is damaged or disconnected
Electrical fault We recommend that someone with a certain level of electrical knowledge should be inspected to ensure safety.

Second, hydraulic failure:
1. The oil pump is not sucking oil, the coupling is damaged, the seal of the oil pump is damaged, and the oil pump is worn out. This will cause the oil pump not to absorb oil. Solution: Replace the coupling, seals, and oil pump.

2. The solenoid valve is stuck or damaged. The solenoid valve core is directly plucked with a yam wire cutter. If it can be smoothly ejected, it proves that there is stuck. If it cannot be smoothly ejected or cannot enter, the solenoid valve is damaged. Please replace the solenoid valve.

3, The hydraulic system has oil leakage phenomenon. The oil leakage phenomenon can be observed almost by the naked eye. Please repair the oil leakage area.