Fan self lubricanting bearing

If it is stopped for a long time fan, then just add the oil after a good composite bearings have to put some time and other "moisture" was almost reused. Replacing the fan heat sink Be sure to pay attention to tighten the screw, or may cause vibration.

1. undertake the fan motor shaft sleeve axial deviation, resulting in sliding bearing fan blades are stuck or grazing, issued a "chug" sound.

2. The fan motor bearings loose, making the blade issued a "buzzing" sound when rotating.

3. The fan motor axial movement due to wear pads, the axial gap increases, issued a "chug" sound after power.

4. The fan motor bearings are used in low-grade oil, easy to enter the fan bearings with dust stick together when the ambient temperature is low, increasing the resistance to rotation of the motor, the motor issued a "buzzing" sound.

If the fan is not working properly, a long time is likely to burning motor, resulting in damage to the entire switching power supply. Sound reasons for the above power supply fan, usually you need to perform the following maintenance work.

Power Box is the easiest place gathering dust, the sound if the power supply fan makes a larger, generally every six months to remove the fan, wash the dust and processing of oil to carry out simple maintenance. As the power supply fan is enclosed in a box, demolition is not easy, so be sure to pay attention to methods of operation.