The daily maintenance of duct fans mainly includes the following aspects:
Daily inspection:
Appearance inspection: Check whether the fan casing has signs of damage, whether the inlet and outlet pipes are tightly connected, and whether there is any looseness or leakage.
Operation status inspection: Pay attention to whether the sound of the fan when starting is normal, and whether there is any abnormal friction or vibration. Observe whether the start time of the fan is normal and whether the speed is stable.
Weekly maintenance:
Cleaning: Wipe the fan casing with a clean, dry soft cloth to remove dust and dirt, especially around the air inlet and motor heat sink where dust is easily accumulated. If the environment is harsh, you can use a small vacuum cleaner or compressed air tank to clean it.
Fasteners inspection: Check the various fastening parts of the fan, including the fixing screws of the impeller, the anchor screws of the motor, etc., to ensure that they are not loose.
Monthly maintenance:
Lubrication treatment: For fans with lubrication requirements, lubrication maintenance is performed once a month. After cleaning the bearing parts, inject an appropriate amount of lubricating grease. Be careful not to use too much grease to avoid overflow and contamination of other parts.
Performance test: Perform a simple fan performance test once a month, including measuring parameters such as air volume, air pressure and motor current. Compare the measurement results with the rated parameters of the fan, and deal with problems in time.
Quarterly in-depth maintenance:
Impeller inspection and balancing correction: Perform a detailed inspection of the impeller every quarter, disassemble the fan housing (if possible), and check whether the blades are worn, deformed or corroded. If the blades are slightly damaged, you can consider repairing them; if the damage is serious, replace the impeller.
Dynamic balance test: After the impeller is repaired, perform a dynamic balance test to ensure that it is in good balance.
Other maintenance suggestions:
Clean the filter: Clean or replace the air filter regularly to ensure air quality.
Electrical safety check: Check the wires and circuits regularly for damage or looseness to ensure electrical safety.
Record maintenance history: Record maintenance logs or history after each maintenance to help track the maintenance status of the equipment and provide reference for future maintenance.