1. lmpeller maintenance: In the early stage of impeller operation and all regular inspections, as long asthere is an opportunity, it is necessary to check whether the impeller has cracks, wear, dust and otherdefects.
2. Bearing maintenance: often check the bearing lubricating oil supply situation, if the box appears oilleakage, you can tighten the bolts of the end cover a little, so that it is not possible, consider replacingwith a new sealing filler.
3. The negative pressure fan stops running for a long time, some parts are exposed to the air, and eventhe sun and rain, and the appearance is easy to rust. The exposure of the fan in the sun must bereduced, and it can not be shelved in the humid air for a long time.
4. In the northern region, the winter temperature is low, if the installation of negative pressure fanworkshop or negative pressure fan operating environment is not good, we must pay attention to theanti-freeze problem of the fan, in the winter fan long-term use, the temperature is below zero, we mustcheck the bearing box, the cooling water inside the clean.
