Motor maintenance process of motor maintenance center:

Clean the stator and rotor - replace the carbon brush or other parts - vacuum class F pressure dip paint - dry - calibrate the dynamic balance.

1. The use environment shall be kept dry frequently, the motor surface shall be kept clean, and the air inlet shall not be blocked by dust, fiber, etc.

2. When the thermal protection of the motor continuously acts, it shall be found out whether the fault comes from the motor or overload or the setting value of the protection device is too low. After the fault is eliminated, it can be put into operation.

3. The motor shall be well lubricated during operation. Generally, when the motor runs for about 5000 hours, the lubricating grease shall be supplemented or replaced. If the bearing is overheated or the lubrication is deteriorated during operation, the hydraulic pressure shall replace the lubricating grease in time. When replacing the grease, the old grease shall be removed, and the oil groove of the bearing and bearing cover shall be cleaned with gasoline. Then, zl-3 lithium grease shall be filled into 1 / 2 (to 2 poles) and 2 / 3 (to 4, 6 and 8 poles) of the cavity between the inner and outer rings of the bearing.

4. When the service life of the bearing is over, the vibration and noise of the motor will increase obviously. When the radial clearance of the bearing reaches the following values, the bearing shall be replaced.

5. When disassembling the motor, take out the rotor from the shaft extension end or the non extension end. If it is not necessary to remove the fan, it is more convenient to remove the rotor from the non shaft extension end. When withdrawing the rotor from the stator, the stator winding or insulation shall be prevented from being damaged.

6. When replacing the winding, the form, size, turns, wire gauge, etc. of the original winding must be recorded. When these data are lost, it is necessary to ask the manufacturer for them, and change the original design winding at will, which often makes one or several performances of the motor deteriorate, or even cannot be used.