It's turning into another cr@ppy day here in the desert. The dead machine this time is my Powermatic 8" Jointer, 1HP 115/230 motor wired for 230, probably made around the time JFK was President. I ran it for 5 minutes today and it was fine, came back to it 20 minutes later and it just hums very loudly.
I unplugged it, bypassed the switch and plugged it back in again - same thing.
I turned the belts by hand and they moved smoothly, but I took them off to try it without any load at all - still just a large hum.
Turned it on and tapped the capacitor a few times, still just a loud hum.
Each time I turned it on and just got a hum, I only kept it on for under five seconds but when I gave up fiddling with it and decided to take it off the mount it feels hot to the touch.
It's got a 3/4" shaft with a 2-groove pulley on it and that pulley moves very easily - the motor isn't binding.
What did I do? There are no motor repair shops in this town. The guys at the electrical supply store are just salesmen. I know nothing about electricity and I know more than they do so going for local help is out of the question - I'd have to drag it up to Tucson. I can order a new one at Surplus Center online for under $200 but they don't have anything that size/speed (or slightly bigger) with a 3/4" shaft and the biggest spare I have sitting in my shed is only 3/4 HP.
Please advise....
I unplugged it, bypassed the switch and plugged it back in again - same thing.
I turned the belts by hand and they moved smoothly, but I took them off to try it without any load at all - still just a large hum.
Turned it on and tapped the capacitor a few times, still just a loud hum.
Each time I turned it on and just got a hum, I only kept it on for under five seconds but when I gave up fiddling with it and decided to take it off the mount it feels hot to the touch.
It's got a 3/4" shaft with a 2-groove pulley on it and that pulley moves very easily - the motor isn't binding.
What did I do? There are no motor repair shops in this town. The guys at the electrical supply store are just salesmen. I know nothing about electricity and I know more than they do so going for local help is out of the question - I'd have to drag it up to Tucson. I can order a new one at Surplus Center online for under $200 but they don't have anything that size/speed (or slightly bigger) with a 3/4" shaft and the biggest spare I have sitting in my shed is only 3/4 HP.
Please advise....