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Hello Don and Dave.I'm basing my post on the fact that to reverse a single phase motor you just need to alter the direction of one winding against the other. Blue is common so theoretically reversing the Red White should see current flowing in the opposite direction. The use of those thumb terminations might also be a clue. Anyway for the sake of two minutes, time will tell. I'm quite old enough to eat " Humble pie " !! Kind regards, Graham.
Hello All.It's even simpler !!I was close, but no Cigar !!http://www.ourautomation.com/blog/reversing-single-phase-capacitor-start-motor-by-remote-controller/However I must dig out my recipe for humble pie !! Kind regards, Graham.
Graham if blue is common then the start and run winding is common to this. The only way to be able to do this with three wires is to have the start winding common to the run wiring internal at mid point of the run winding or (both windings would have to be the same and by just moving the power line on either side of the start capacitor would reverse it). I have seen the later but only on small motors.Don
from the diagram it looks to me like you just have to reverse the wires to the capacitor, am I right?
Dave, the Myford 3/4 Hp motor has a centrifugal switch and does require the ends of the start winding swapping over to reverse it. The centrifugal switch completely disconnecting the start winding. Indeed if you completely disconnect the start winding, a simple flick of the motor pulley in the direction you want it to run will start it up and it will run as normal.
Now, now Dave, throwing 3 phase in there, that's cheating. Seriously though mine is still single phase, though I've had a 1.5Hp three phase motor in the garage, like forever...