Hi Cabber
Question :has the machine always been prone to do this or could it have slowly developed the tendancy as it grew older?
Wear creates mechanical play or backlash - could this have something to do with it ?
Some kind of simple ratcheting device could prevent unwanted backwards movement...
there are 2 windings - a start winding and a running winding.the start winding has the higher resistance of the two.it normally has a capacitor in series with it.
if the ends of both windings are accessible, then the reversal of one of the windings will change the direction of the motor.
i must...