rke[pler
Diamond
- Joined
- Feb 19, 2002
- Location
- Peralta, NM USA
(Man, it's been quiet around here. Folks in their shops?)
After resolving (I hope) most of the drive problems in my 1956 all-tube 10EE drive I am now on the other end. The motor works great in reverse but the brushes arc a bit in forward. Starting it doesn't arc at all in reverse but gives one heck of a flash in forward.
The commutator isn't scored, the separation between bars looks good, but it is dark and not what I've heard described as a light oxidized copper color. The brush edge looks a bit chipped to me, but then I don't know a lot about DC motors.
I figure that the right thing to do is to replace the brushes. At the same time I'll clean the commutator with an 'eraser' (sometimes called a pumics stone, etc.) to clean metal. I figure on running in the new brushes for a couple of hours if that sounds appropriate.
Right now I'm waiting on price quotes from Monarch and Reliance, hoping to hear from them today so I can see these things next week.
Any pointers on replacing the brushes? I'd rather avoid removing the motor from the lathe due to physical constraints, so any info on doing it in place would be helpful.
After resolving (I hope) most of the drive problems in my 1956 all-tube 10EE drive I am now on the other end. The motor works great in reverse but the brushes arc a bit in forward. Starting it doesn't arc at all in reverse but gives one heck of a flash in forward.
The commutator isn't scored, the separation between bars looks good, but it is dark and not what I've heard described as a light oxidized copper color. The brush edge looks a bit chipped to me, but then I don't know a lot about DC motors.
I figure that the right thing to do is to replace the brushes. At the same time I'll clean the commutator with an 'eraser' (sometimes called a pumics stone, etc.) to clean metal. I figure on running in the new brushes for a couple of hours if that sounds appropriate.
Right now I'm waiting on price quotes from Monarch and Reliance, hoping to hear from them today so I can see these things next week.
Any pointers on replacing the brushes? I'd rather avoid removing the motor from the lathe due to physical constraints, so any info on doing it in place would be helpful.