04-12-2009, 09:33 AM
I believe David is correct, the motor housing is probably in contact with the rail on that side.
That said, all you should need to do is isolate that brush from the frame. Some dielectric tape or heat shrink around that clip (or removing the clip entirely) should do the trick, assuming there are no other electrical connections between the rail/chassis/motor.
That said, all you should need to do is isolate that brush from the frame. Some dielectric tape or heat shrink around that clip (or removing the clip entirely) should do the trick, assuming there are no other electrical connections between the rail/chassis/motor.