Carbon Brushes for old school H&A Swing Saw?
Hey all, first post here. I recently bought a house with a decent work shop on it. Long story short back in the lumber storage area was an H&A swing saw that the estate auction people had no idea what was and it was a bit heavy so they just left it there.
The problem I'm running in to with it is that it was getting some heavy arcing off the carbon brushes and would spin slowly backwards, or just sort of be stalled, not spinning any direction.
The carbon brushes are in pretty poor shape and I have no idea where to source any. According to the micrometer they are 29/64 wide and 1/4" thick. They look like originally they'd have been about 5/8 long and have a 3" bare copper lead coming off of them.
My first question here is would chewed up brushes like this cause the motor to spin backwards slowly or to not spin at all. If not what could that be, the wiring appears to be correct. It's 240v but only single phase, no three phase workings going on in there.
Second question, where would I find brushes this size. I've checked carbonbrush.com but they didn't seem to have anything the right size, or if they did it only had a little stubby lead coming off of it. I might just need to rig up something custom there.
Anyway, thanks and hopefully I get some replies as I'm stumped.