Some Tips on Motor maintenance

Motor maintenance process of professional motor maintenance and repair center is: cleaning the rotor - the replacement of carbon brush or other parts - vacuum F grade pressure impregnation - drying - school dynamic balance.
The usage of the environment should always be kept dry, the motor surface should be kept clean, an inlet should not be subject to dust, fiber and other obstacles.
1. When the motor thermal protection action occurs continuously, should identify the fault from the motor or overload or protection device set value is too low to eliminate the failure before put into operation.
2. Should ensure that the motor in the course of good lubrication. General motor runs about 5000 hours, which should be added or replaced grease, running the bearings are found in overheating or deterioration, the timely change of hydraulic grease.
3.The replacement of grease, you should remove the old oil, and gasoline washing bearings and bearing cap oil tank, and then ZL-3 lithium grease filled bearings between the inner and outer ring cavity 1/2 Pole) and 2/3 (for 4, 6, 8 poles).
4. When the end of the bearing life, the motor running vibration and noise will significantly increase, check the bearing radial clearance to the following values, which should replace the bearing.
5. The demolition of the motor, from the shaft end or non-extension of the rotor can be removed. If it is not necessary to remove the fan or to remove the rotor from the non-shaft end, it is convenient to prevent the stator winding or insulation from being damaged when withdrawing the rotor from the stator.
6.The replacement of the winding must be noted in the form of the original winding, size and number of turns, wire gauge, when the loss of these data should be obtained from the manufacturer, free to change the original design of the winding, the motor is often one or a few properties Deterioration, and even cannot be used.