According to from time to time to Micro Cooling Fan supplement or replace the bearing grease (motor enclosed bearing service life without replacing the grease), to ensure that the fan is running in good lubrication, fuel not less than the number of "Micro Cooling Fan" Environmental Conditions 1000 hours / closure of bearings and motor bearings, fuel zl-3 with lithium-based grease filling 1/3 of the bearing inner and outer rings, running short of oil is strictly prohibited. "Micro Cooling Fan" should be stored in a dry environment, avoiding motor damp. Fans at the open storage, proper defensive measures. "Micro Cooling Fan" in the storage and handling process should prevent the fan bump avoid fan damage