Re: Conn Naked Lady adjustable neck question
That tuner should be able to go plus or minus 5 or so full revolutions. And turn it enough, and it should be able to come off.
Mine turns with a fairly high level of resistance (good thing as you wouldn't want your tuning to fluctuate) so I would describe it's operation as resistant but smooth.
It is curious that yours turns some but not all the way around.
Being careful not to grip the neck in the wrong way as to damage the octave mechanism, have you tried "muscling it" a bit to get it to turn? Not that I recommend getting out channel locks or anything, but it might just be gummed up in there and it needs to be broken through. Some penetrating oil added from the back side (+ a day or two of wait time) might help free it up.