Fault diagnosis and treatment of nitrogen generator magnetic valve:

1) Electromagnetic nitrogen valve failure:

Method: If there is no corresponding nitrogen in the optical response operation of electromechanical magnetic valves and valve switches, the problem may be a failure of the solenoid valve or the solenoid valve connection circuit.

Treatment method: First check the nitrogen generator circuit to eliminate mechanical failure of nitrogen. As a trouble-free circuit and replacement solenoid valve:

2) The electromagnetic nitrogen valve card is faulty

Method: Such as electromechanical magnetic valve indicator light and switch status of the corresponding response to nitrogen, but the control valve has not acted, possibly the solenoid valve stuck or control valve failure. Check the manual switch, two exhaust valve ports or exhaust, such as alternating discharge, the solenoid valve is complete, in the program of the control valve failure. Because the solenoid valve cannot AC gas discharge, the solenoid valve is stuck.

Treatment method: Remove the solenoid valve, open and clean the solenoid valve inside.

3) The hydraulic cylinder of the machine's control valve leaks faulty nitrogen

Method: Manually switch the valve, when the valve is open and closed observe the conditions, whether there is gas emission from the solenoid valve exhaust. If the gas is discharged, the cylinder leaks to control the valve so that the nitrogen of the valve cannot be switched on and off slowly.

Treatment: Contact the manufacturer to replace the backup cylinder.