Problems encountered in the commissioning of vacuum packaging machine and their solutions

Possible problems encountered during the commissioning of vacuum packaging machine and their solutions: the whole machine does not work; a the voltage is too low, the fuse is burnt out (use voltage regulator, replace fuse); B the travel switch is misplaced (adjust the travel switch position); C the pump or motor is stuck (find out the cause of the fault) d The plug-in of the vacuum pumping delay device is loose or damaged (plug in the delay device or replace it), and the vacuum cannot be pumped up A the vacuum pump reverses (any two of the phase lines of the motor are reversed) B the vacuum solenoid valve does not work (check the control circuit of the valve, repair or replace the solenoid valve) C whether the vacuum pump oil is sufficient or needs to be replaced The sealing quality is poor A the sealing voltage selector switch is not opened or damaged (turn the selector switch to the appropriate position or repair the switch) B the sealing voltage fluctuates or the voltage is improperly selected (eliminate the voltage fluctuation factor and select the appropriate sealing voltage) C the line connection is in poor contact (repair and tighten) d The sealing time is too long or too short (adjust the sealing time) e Sealing air bag is air leakage or damage (repair or replace air bag) F whether sealing solenoid valve works normally (repair or replace solenoid valve) g whether silica gel strip and high-temperature cloth are flat (repair or replace silica gel strip or high-temperature cloth) Vacuum cover cannot be opened A delay plug is damaged or moved (replace plug-in or delay device) b The vent solenoid valve does not work (check the control apparatus, repair or replace the solenoid valve) The next procedure will not be transferred after the completion of vacuumizing The delay device is damaged or the delay device of the next procedure is loose or damaged (repair or replace the delay device) The next procedure will not be transferred after the completion of sealing The sealing time delay device is damaged or the next program time delay device is loose, damaged (repair or replace the time delay device) After cooling, the vacuum chamber cannot be opened The cooling time delay device is damaged or the solenoid valve does not work (repair or replace the time delay device, solenoid valve)