Electric brushless motor is the power source, on the whole car to more efficient use of the equipment is necessary to strengthen the maintenance and repair of equipment, so, in the work must grasp the following maintenance methods: And appearance inspection, the fan is working correctly, whether there are abnormal vibration of the shaft coupling is reliable, the base fixed whether fastening bearing working is normal (listen), the temperature is normal (infrared thermometer), whether the current normal (clamp type current meter), wound rotor motor also must check the carbon brush and slip ring, if one is abnormal, electric car brushless motor repair processing quickly, otherwise, the gravity of the situation is changed after their treatment. Second, brushless electric motor maintenance should pay attention to: keep the machine clean, no dust; Check the appearance of the motor, look to whether have parts dislocation; Regularly check the bearing for replacement or refueling, also check into line terminal. Third, be careful maintenance, if the electric brushless motor is in the case of continuous operation, daily maintenance is very important: motor work, pay attention to the work environment, don't too bumpy in the state, in case the motor damage or reduce the service life. Four, in order to guarantee the quality of products and performance, it must be in strict accordance with the correct method and standard operation, at the same time, in to strengthen the maintenance and overhaul of equipment, it also can improve the performance of the equipment and prolong the service life of equipment.