Hydraulic Cutting Machine Related Problems And Solutions

- Dec 23, 2019-

When the rocker cutting machine is in operation, the punching head does not move:


Check if the handle button switch connector is disconnected. If the terminal is not dropped, please operate the button switch with both hands to check whether the button indicator of the circuit board is lit. If the light indicates that the switch and the circuit board are normal, do not rush to judge the circuit board if it is not lit. Broken, please continue to check, use the universal meter to check whether the transformer 24V or 30V has electricity, if there is no electricity, please continue to check whether the transformer primary 380V has voltage, the primary has electricity, the secondary five points, please replace the transformer.


If the trimmer positioner is short-circuited, you can use the universal meter resistance file to check whether the resistance of the positioning terminal is normal (0-1 value is normal, if it is not within this range, it is abnormal).


If there is no abnormality in the above points, please continue to check whether the solenoid valve is stuck. If the solenoid valve is stuck, you need to clean the solenoid valve and then try to install it. After cleaning, there is still no need to replace the solenoid valve.


Rocker arm cutting machine pressure is unstable:


First check if the trimmer positioner is damaged. For example, you can adjust the different values of the positioner to cut the air multiple times to feel the pressure is the same every time. If there are multiple occurrences, the positioner is not sensitive and needs to be replaced. Another problem is that no matter how large the positioner is adjusted, the pressure does not change, indicating that the positioner is broken and needs to be replaced.


Inaccurate contact with the board and insensitivity to the solenoid valve can result in unstable pressure.


The pressure of the rocker cutting machine becomes smaller:


The trimmer positioner is damaged, and the pressure is not changed and needs to be replaced.


The oil pump is damaged and the oil pump is worn inside and needs to be replaced.


Loosen the cylinder or tubing connector and check the cylinder for oil leakage. According to the type of rocker cutting machine, the oil of a rocker arm is from the bottom of the machine head and there is overflow on the upper side of the casing, which is convenient to see. The second type of rocker cutting machine needs to open the fuel tank cap to check whether the bottom of the cylinder is injecting oil. If it is determined that the oil leaks, replace the seal in time. There is very little chance of oil cylinder and cylinder plunger damage and oil leakage, and remember to check if the tubing joint is loose.


The temperature of the hydraulic oil is too high. For example, the use of the power supply suddenly becomes smaller, even without pressure. After a few hours of downtime, there was pressure to use it again, and then there was no use for a while. In this case, it is recommended to replace the hydraulic oil, remember to buy cheap hydraulic oil without greed.


The rocker cutting machine does not start:


Check if the start button wire connector is dropped, whether the start button is damaged, check whether the start button is energized, and measure the resistance value with a universal meter (the pointer of the universal meter does not move, the movement indicates normal).


If the motor is missing, check if the three-phase power is normal.


There is also a kind of rocker arm cutting machine that installs a thermal relay. Check if the thermal relay protection jumps out. If it is pressed out and then turned on again, please replace the thermal relay if it is not useful.