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Hi guys, I'll give this a try and see if it goes anywhere. I have a Craftsman 109.2127 I bought several years ago. Don't know much about lathes, just now getting up my nerve to take a whack at this.

I don't have any information about maintenance or repair, if any such exist I'd sure like to know about it.

My immediate question is, as I understand it, you loosen the socket head screw on the back of the "drum" that houses the planetary back gearset, and if you move it outward it disengages the drum from the gears. If you move the screw and its "nut" toward the center, it engages the plate to which the planetary gears are attached and that's high-speed. But then as far as I can tell, the only thing connecting the step pully to the mainsaft, once disconnected as stated in the first case above, is the setscrew in the step pulley--is that true? Since there's no flat on the shaft, that cupped screw will then just have to dig into the shaft, is what I'm seeing--and then that will not go through the bushings should you need to disassemble without damaging them. Help!