Turn on the power (be sure to cut off the power as the voltage is very dangerous), take out the fan and carefully remove the sticker on the back of the fan

If there is a small hole on it, drop a little liquid into it to lubricate it Oil (sewing machine oil and watch oil are better), but not too much to prevent the fan from turning and releasing oil. Finally, put a sticker on it.

If there is no oil supply hole on the back of the fan, there must be one in the center of the back. Use a larger round soft rubber plug to hook out the plug, pull out the fan rotor (connected to the metal rod of the fan) and clean it, then apply some solid lubricant on the smooth metal rod, and then apply some solid lubricant to the stator (the one with the coil on it). Part) Apply lubricating oil to the concave part at both ends. Install the stator and turn it twice to make the lubricating oil even. Finally, install the plug and stick the sticker on OK

Note

Remove the sticker When applying oil, make sure the back of the fan is clean otherwise the sticker will not stick

Apply an appropriate amount of oil but not too much

Attachment

Some fans (such as graphics cards) It is magnetically levitated and cannot be lubricated. The fan noise is entirely caused by physical collision (for example, the fan power cord is slightly in contact with the fan)