L68A1 Mast Section Tower Crane Motor Maintenance and repair
tower Crane Motor Maintenance and repair knowledge 1 the motor should be kept clean during use, brush holding device and collecting ring should not have dust, fiber and other sundries, into the air outlet should not be dust, fiber and other sundries, no sundries, rain or other conductive liquid is allowed to enter the motor. When the motor protective device continuously operates, it should be judged whether the fault is caused by the motor or overload or the setting value of the protective device is too low, and the fault can be eliminated before the motor can continue to operate.
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3 the motor should be well lubricated in use, the general motor running about 5000 hours should be added and replaced grease, in operation found overheating or grease deterioration should be timely replacement of grease, replacement of grease, grease should be removed, and with gasoline to clean the shaft and bearing grease, and then according to the "tower crane lubrication table" in accordance with the grease label will be filled between the inner and outer rings of the bearing 2 / 3, sealed bearing in the life cycle do not have to replace grease. The insulation of the Motor Housing shall be greater than 0.5 m. The Electric Motor wiring cable should not be damaged. Check whether the fixing bolt of the motor is loose, if it is, tighten it in time.
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