1.See: Rolling daily inspections, not only electrical engineer, engineer on duty and motor oil are also watching the work, the current size and change, look around there are no leaks, drips, low insulation breakdown will cause the motor to burn out.

2.Touch: Rolling with the back of exploration mold temperature around the motor. In the case of the bearing in good condition, will be lower than normal temperatures across the middle section of the winding temperature.

3.Listen: listen carefully to run the motor sound is abnormal, because Bending runtime if noisy, listening rods by means of a screwdriver or other auxiliary tools, stickers pro motor ends listen.

4.Do: not only on the problems found in inspection Bending take timely remedial measures, but also by the maintenance cycle of the motor screws, wire fastening, disassemble inspection, cleaning and maintenance and so on.