Serial Number

Reason for existence

Ways to improve

01

Uneven distribution of current

Adjust the spring pressure point so it is in the correct position

02

Poor braid link of carbon brush

Replace carbon brushes

03

The same slip ring, mixed use of different carbon brush materials

Only use carbon of the same grade

04

Carbon brushes are bonded in the brush holder

Clean the brush holder and check the tolerance change of carbon brush T and A directions. If the size of the carbon brush is large, it is recommended to use a dust collector design