Micro motor use process, there are many issues that need attention, the following I bring you a micro motor brush replacement when you need to pay attention to a few issues.

Micro motor brush wear, should be replaced in accordance with the manufacturer's regulations. When replacing part of the brush, you must ensure that the entire micro-motor brush brand consistent. Because if the brush grade is different, it will cause uneven current distribution between the brushes. If you can not match with the original brand of brushes, you need to replace all the brushes of the whole machine. After replacing the micro-motor brushes, be sure to brush and collector ring contact surface with 00 glass sandpaper, and do not use emery cloth to grind, because off into the hook between the commutation piece, so that the brush, collector ring grinding bad. After grinding, use compressed air to blow clean. Brush pressure can be adjusted by the spring on the brush grip. The difference between the brush pressure should not exceed ±10%, the pressure can be measured by spring scale, to 20~25kPa is appropriate. If a miniature motor replace more than half of the brushes at one time, it is best to run with a light load for more than 12h, so that the brushes and collector ring have a better match before running at full load.