Hyundai Matrix window regulator motor repair

Before replacing your window regulator, you could try to fix it this way. You gonna need very thin sand paper, white gasoline (for dry cleaning clothes) and air compressor (or any air blower). You also have to be comfortable with this kind of job. For me, it worked only once. the next time, since the brushes were too small and I didn&haven spare time to find the same kind, I had to replace the regulator. Unfortunately, I run out of memory and couldn&capture the hardest part of the job which is the way to put the rotor back in position...