In order to make the roof fan work for a long time, it needs to be maintained. In order to reduce the failure and damage of this equipment, we need to do the following points. Let's have a look:
1.Check whether the motor rotor is flexible. During operation, the bearing temperature shall not exceed 95 ℃ < thermometer method >, and the bearing shall be checked at least once every six months.
2. Keep the roof fan clean and prevent dirt such as oil and water from entering the motor.
3. Check whether the connecting terminal bolts and the fixing bolts of the motor base are loose.
4. Check whether the roof fan shell is obviously heated and whether the bearings at both ends have oil leakage.
5. Remove the dust or sundries inside the fan (be careful not to damage the motor winding).
6. The bearing shall be refilled with lubricating grease every 750-1500 hours of operation. It shall be filled with zl-3 lithium grease, but the filling amount each time shall not exceed 1 / 2 of the volume of the bearing chamber.
7. Check whether the no-load current is within the specified range.
8. If the explosion-proof surface is damaged or rusted, it must be repaired in strict accordance with the provisions on defect treatment of explosion-proof electrical equipment.
9. Check the rotation of the fan blades of the roof fan.
10. Pay attention to observe whether the fan has abnormal noise, vibration and special smell during operation. In case of any abnormality, stop the machine immediately and report to the electromechanical manager.
The above points are the maintenance knowledge of roof fan. The maintenance of fan is very necessary, because it not only affects its service life, but also affects its work efficiency. Therefore, we must do a good job in daily maintenance.
