First of all, check the motor of the curtain door to see if it is flexible, there is no fault, and then check whether the operation of the curtain and guide rail is smooth, and there is no abnormal sound.

In daily use, if it is found that the running speed of the rolling shutter door is slow, it is necessary to check whether the motor is faulty, and if it is, it should be repaired in time.

In the process of use, if it is found that the rolling shutter door has abnormal sound or abnormal sound, it should be stopped in time for inspection.