How do you fix a hung brush?

[Gutter Ball]

It finally happened to me! I've never had a hung brush before. It took me forever to find out what it was. I thought I had cold solder joints on the motor tabs, so I redid them...nothing. I thought my ESC was broken, nope, it worked. I checked the brushes and they were still good, put them back in, still no go. I accidentally dropped the motor and it whirred up. So I took it apart and cut the comm. This time it worked! Guess I "fixed" the brushes when I took them out. BUT after a few minutes of run time, the motor cut out again. So I pressed one of the brushes in and the motor worked. Now, how do I fix this properly?? I just soaked the brushes with comm drops, hoping that would lubricate the brush hood so it wouldn't get stuck. Is that the right way to fix it?

[Mason Copeland]

theres really no proper way but a thorough cleaning with motor spray and relubing should to it.

[B3Tyler]

put 1 drop of comm drops on.

[Railman]

Gutterball, There's either a bur on the brush holder, or the holder is too tight at a spot. It sounds like you know which side was hanging, so thats a good start. Try slideing the brush in & out & see what it feels like. If you look closely with a hand held scope or a magnifying glass you'll see whats hanging up. At any rate take a small file, or a something that you can wrap with some fine sandpaper (#220 or so) & slide it through the holder a few times . It's also possible, although unlikely ;) that the brush spring was not set properly. Joe

[Gutter Ball]

Okay, thanks all..I'll look for any rough spots, reclean the brush hood and make sure the springs are nice :)