03-24-2001, 10:45 PM
I have an old(circa 1943) 10" Logan lathe with plain change gears that I want to upgrade to a quick change gear box. I have obtained a Logan gearbox, but ran into trouble when attempting to install it. The cast iron tab that bolts to the face of the lathe bed way is approximately 9/32" too thick and holds the lead screw out of alingnment laterally outward by that amount. The screw will not properly fit through the cross feed gears or half nuts on the carriage, nor the bearing on the tailstock end. Does anyone know if Logan changed the dimension of this tab on later model gear boxes? I can machine the extra thickness off leaving abouty 1/2" to bolt to the lathe bed in my shaper. I just don't want to ruin an otherwise excellent gear box. Any information on this subject would be greatly appreciated.