nicehice wrote:I was using the speed reducer to turn an out of round log into a bowl blank, but it wasn't working right in that I couldn't get the log into round. It seemed as if the log was not securely attached to the face plate. I stopped six times to check it and all seemed good. The last time I tried to restart it the speed reducer refused to turn. I removed it from the shopsmith and tried it, it worked fine. The reducer gears did not get wet. I tried turning it with a face plate attached,no luck
OK I think what has happened is that the plastic coupler inside the snout that attaches to the headstock may have become disengaged or broken. If the speed reducer is not fully connected and the plastic coupler is not tightened down onto the headstock, then the Shopsmith will turn but the speed reducer will not.
Check the plastic coupler. It is a short plastic piece about 2 inches long and it is inside the long "snout" of the reducer. It has a setscrew on one end which locks the coupler to the hub on the speed reducer side. You lock a hub on the headstock shaft and then slide the speed reducer with coupler onto that hub. Either the hub setscrew on the headstock side is loose, letting the shaft spin inside the hub, or the hub setscrew on the speed reducer side is loose, letting the coupler rotate around the speed reducer shaft without turning it, or the coupler is broken, or it is simply not fully engaged onto the headstock.
Figure out which of the above is happenning, and you will solve the problem.
I had this happen once and realize I had just forgotten to put the coupler in!