The daily maintenance of the motor housing is very important for reducing and avoiding the breakdown of the motor during operation. The most important step is to check the circuit and remove the root cause of any abnormal phenomena in time. After the accident, it is necessary to analyze the accident seriously and take countermeasures, which is the necessary technical work to reduce the number of accidents and improve the efficiency of the motor when the station is repaired. The motor is not allowed to enter the water, oil, dust, etc., and regularly remove the dust inside and outside the motor. Note that the load current should not exceed the rated value. Pay attention to bearing, heating, oil leakage, etc., especially in accordance with the provisions of refueling. The temperature rise of the motor shall not exceed the rated value. Therefore, in use, we should be familiar with and master some of the above maintenance skills, the following brief introduction of DC motor shell maintenance of common sense: 1. when the aluminum shell motor thermal protection continuous action, should be found that the fault from the aluminum shell motor or overload or protection device, the setting value is too low, after the elimination of the fault before they can be put into operation. 2. the use of the environment should always be kept dry, the motor surface should be kept clean, the air inlet should not be dust, fiber and other obstacles. 3. when the bearing life is over, the vibration and noise of the motor will be increased obviously. When the radial clearance of the bearings is reached, the bearings should be replaced. 4. should ensure good lubrication of aluminum housing motor during operation. General motors operate for about 5000 hours, should complement or replace grease, bearing overheating or lubrication modification found running when hydraulic timely for grease. Replacing the grease, should remove the old oil, and gasoline to clean the oil tank bearing and bearing cover, and then the ZL-3 lithium grease filled cavity between the inner and outer rings of the bearing of the 1/2 (2 pole) and 2/3 (4,6,8). 5. when the replacement of the winding must take note of the primary winding form, size and number of turns of wire, etc., when the loss of the data, should be obtained from the factory, change the original design of the aluminum shell motor winding, often one or several performance deterioration, even can not be used. 6. when removing the motor, the rotor can be taken out of the shaft end or the non extending end. If it is not necessary to remove the fan or remove the rotor from the non shaft end, the stator winding or insulation shall be prevented from drawing out the rotor from the stator.


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Teach you how to maintain the motor casing