Troubleshooting

The fault we encountered was: The punctual car can move, and the anti-point car can't move. The positive and negative points of the car are turning. Check the brush contact, no problem. The electrician was repaired and the relevant lines and insurance in the electric box were checked again. Still, no reason was found. Continue to look for the reasons for the motor, found that a brush is seriously worn, replace it, the anti-point car can be moved. Who knows, during the process of loading and unloading, the anti-point car could not be moved any longer. The loading and unloading work was forced to be interrupted, and it was only necessary to continue to search for the cause of the failure. We suspect that the gap between the brake pads of the low-speed motor is too large, the electrician dials a few times with the screwdriver, and then loosen the screw to move the electromagnetic clutch a bit. The pilot car still does not work. The operation found a problem. When the low-speed motor is connected to the main motor, there are chattering and abnormal sounds. When the parking system disassembles the low-speed motor, it finally finds the cause of the fault. The steel pin connecting the motor shaft to the pulley is not worn. The shaft of the motor shaft is dragged back flat, and the pulley groove is also tumbled beyond recognition. It will be fully repaired and the front and back points will be free and the trouble will be eliminated.

Before this failure occurred, the machine did not experience an abnormality. The low-speed motor also showed no severe vibration, and the machine was overhauled for more than a month. Therefore, it is difficult for people to think of the cause of the failure. Therefore, it is more representative.