1, lubricated bearings "AC Axial Fan" transport the most important parts is bearing, a long time the lack of oil, will produce noise such high-speed rotation. Therefore, we only need a few drops of lubricant on the fan bearings, if not used sewing machine can also be replaced. But be careful, do not use cooking oil instead, because its particles are relatively large, easy on the bearings injury.
2, Fixed "AC Axial Fan" Ye vibration noise is also an important part of the fan noise, because loose leaf on the bearing and bearing wear resulting in larger gaps, etc., so only need to remove the sub-sector, the screw knob tight, after so firmly fixed, it will not shake.
3, grinding blades additional use of poor quality heat "AC Axial Fan", in the production of this type of fan because of defects in workmanship, the fan may not be at the center of gravity on the axis, the formation of "eccentric", the use of time-long fan "eccentric" phenomenon will become more and more serious, it will not only produce noise, serious damage may also CPU. In this regard, can be co-removed, then thread hanging from its center position, let it sink to the still to see which direction the end of the sinking of the light grinding wheel a few times, and then tested, has been after the fan can be installed in a horizontal position and then go up to.