Source：Shengda Yu Published：2020-09-03 Clicks：6827
Servo motor maintenance process: cleaning stator and rotor-replacing carbon brushes or other parts-vacuum F-class pressure dipping paint-drying-calibrating dynamic balance.
The use environment should always be kept dry, the surface of the motor should be kept clean, and the air inlet should not be hindered by dust, fiber and so on.
When the thermal protection of the motor operates continuously, it should be checked whether the fault comes from the motor or overload or the setting value of the protection device is too low. After eliminating the fault, it can be put into operation.
When the life of the bearing ends, the vibration and noise of the motor will increase obviously. When checking that the radial clearance of the bearing reaches the following values, the bearing should be replaced.
When removing the motor, remove the rotor from the extended or non-extended end of the shaft. If it is not necessary to remove the fan, it is more convenient to choose to remove the rotor from the non-shaft extension end, and when pulling the rotor from the stator, you should prevent damage to the stator winding or insulation.
It is necessary to ensure good lubrication of the motor in the process of operation. In general, when the motor runs for about 5000 hours, the grease needs to be replenished or replaced. When the bearing is found to be overheated or lubricated and deteriorated during operation, the hydraulic pressure will change the grease in time.When replacing grease, the old lubricating oil should be removed, and the oil tank of the bearing and bearing cover should be washed with gasoline, and then the ZL-3 lithium grease should be filled with 1max 2 (to 2 poles) and 2max 3 (to 4, 6, 8 poles) in the cavity between the inner and outer rings of the bearing.
When replacing the winding, we must write down the form, size and turn number of the original winding, wire gauge, etc., when these data are lost, we should ask the manufacturer to change the original design winding at will, which often worsens one or more of the performance of the motor. even can't be used.