"Micro Cooling Fan" should be stored in a dry environment, avoiding motor damp. Cooling fan when open storage, due defenses. In the storage and handling process should prevent the cooling fan bump avoid fan damage. Cooling fan in the environment should be kept clean, fan surface remains clean, the outlet should not have debris regularly to remove dust and other debris inside the fan and piping. Can only operate under "Micro Cooling Fan" completely normal circumstances, while ensuring an adequate supply facility capacity, voltage stability, non-phase operation, the supply line must be a dedicated line, the line should not be long-term temporary supply. According to the following environmental conditions from time to time to supplement or replace the bearing grease, to ensure the "Micro Cooling Fan" in good lubrication during operation, refueling times less than 1000 hours / closure of bearings and motor bearings, refuel with zl-3 Lithium grease filled bearing inner and outer rings of 1/3, running short of oil is strictly prohibited.