1 Pay attention to the lubrication, cooling and temperature change of the bearing at all times.
2 Pay attention to the vibration, noise and impact noise of the unit.
3 The motor load is monitored with an ammeter, and it is not allowed to operate in the overload condition for a long time.
4 For dust discharge, pulverized coal and other fans, it is necessary to check whether the changes of dust and ash particles meet the requirements of fan use.
5 For the temperature-resistant fan, we should pay attention to the change of gas temperature and whether it exceeds the maximum temperature allowed by the fan.