1, "220V AC Cooling Fan" 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 the fan running repairs, maintenance should be carried out after the commissioning of five minutes or so, confirming that no anomalies start running again.
2, according to the environmental conditions from time to time under "220V AC Cooling Fan" to 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, refueling less than 1000 hours / closure of bearings and motor bearings, fuel zl-3 with lithium grease filling 1/3 of the bearing inner and outer rings, running short of oil is strictly prohibited.
3, "220V AC Cooling Fan" should be stored in a dry environment, avoiding motor damp. Fans at the open storage, proper defensive measures. In the storage and handling process should prevent the fan bump avoid damage to the fan.