- Reaction score
- 1,693
Well that's the problem.
One spring 'brush' contact on the Christmas light motor seems to have got bent, with one of the leaves pulled away in the wrong direction from the others (outlined red below). If that bent back piece was touching the same commutator segment as the other brush, it would explain why the motor didn't run, but had resistance.
Maybe the black is the remains of what were small carbon brush contacts, or it's some sort of grease?
I don't think there is much point in trying to restore it or fabricate a replacement given the motors are so cheap.
If there's enough of the springs left, you might get the motor to run by cleaning them up and bending them together, but I don't think it will last for more than a few minutes, or perhaps hours if you're lucky!
One spring 'brush' contact on the Christmas light motor seems to have got bent, with one of the leaves pulled away in the wrong direction from the others (outlined red below). If that bent back piece was touching the same commutator segment as the other brush, it would explain why the motor didn't run, but had resistance.
Maybe the black is the remains of what were small carbon brush contacts, or it's some sort of grease?
I don't think there is much point in trying to restore it or fabricate a replacement given the motors are so cheap.
If there's enough of the springs left, you might get the motor to run by cleaning them up and bending them together, but I don't think it will last for more than a few minutes, or perhaps hours if you're lucky!