"Air fan maintenance mode" completely normal situation, while ensuring adequate power supply facility capacity, voltage stability, non-phase operation, the power supply line must be a dedicated line, the line should not be long-term temporary supply. The use of environmental conditions from time to time to supplement or replace bearing grease (motor enclosed bearing in without replacing the grease service life), in order to ensure a good fan lubrication during operation, the number of refueling less than 1000 hours/times closed bearings and motor bearings, refuel with lithium base grease fill the bearing inner and outer rings of 2/3. Running short of oil is strictly prohibited. "Air fan maintenance mode" fans have found abnormal sound during operation, the motor severe fever, live shell, switch trip, you can not start and so on, should immediately stop checking. To ensure safety, do not allow for maintenance of the fan running. After the overhaul should be commissioning five minutes or so, it confirmed that no anomalies start running again.the use of the environment should be kept clean, the fan keep the surface clean, the outlet should not have debris. Fan regularly to remove dust and debris inside the pipe "Air fan maintenance mode" should be stored in a dry environment, avoiding motor damp. Fans at open storage, measures should be rain. During storage and transport process should prevent the fan bump, so as not to damage the fan.