I have a Delta Unisaw model 36-816, my Grandpa purchased in New in 1998. Last night I was making really light cuts finishing up some tenons and I shut the saw off to change my setup and the saw wouldn't start again, it just hums. Everything rotates freely, and I replaced the mag switch with a spare I had. That didn't solve the problem. I checked the voltage to the switch and to the motor and that isn't the problem. I am assuming it is the start capacitor. I can turn the saw on and use a board to spin the blade and get it running. There are no schematics of the motor in the original owners manual and I am not sure which of the two capacitors is the start capacitor. Any advice would be appreciated.