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Motor Is An Important Part Of The Building Hoist
Jul 13, 2017

  Motor is an important part of the building hoist, but also the most expensive part of the construction hoist, if damaged, then repair or replacement costs will be very high. So here to remind customers to properly maintain the building hoist or winch motor. The maintenance method is as follows:

  1, the use of the environment should be kept dry, the motor surface should be kept clean, air inlet should not be affected by dust, fiber and so on.

  2. When the thermal protection of the motor occurs continuously, it should be found that the failure comes from the motor or overload or the protection device setting value is too low, after the elimination of the failure, the party can be put into operation.

  3, should ensure that the motor in the process of good lubrication. General motor running about 5,000 hours, that is, should be supplemented or replaced with grease, the operation found that the bearing overheating or lubrication deterioration, building hoist hydraulic timely change grease. When replacing the lubricating grease, the old lubricating oil should be removed and the oil tank of the gasoline cleaning bearing and the bearing cap shall be filled, and then the ZL-3 lithium base grease will fill the empty cavity between the inner and outer rings of the bearing 1/2 (to 2 poles) and 2/3 (to 4, 6, 8 poles).

  4. When the life of the bearing is ended, building hoist the vibration and noise of the motor will obviously increase, and the bearing shall be replaced when the radial clearance of the bearing is checked to the following values.

  5. When removing the motor, the rotor can be removed from the extension end or the extension end. If it is not necessary to remove the fan, building hoist or from the shaft to remove the rotor is more convenient, from the stator to draw the rotor, should prevent damage to the stator windings or insulation.

  6, the replacement of the winding must note the form of the original winding, size and turn number, wire, etc., when the data is lost, should be asked to the factory, arbitrarily change the original design of the winding, often make the motor or some of the performance deterioration, and even can not be used.