According to William Wixon :
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Does the tailstock ram have a slot in it which is exposed when it is cranked far enough out? I can't see one in the photos, but there may be one just not visible because of the angle. If there is, then a tapered wedge called a "drill drift" is placed into the slot so it engages the back of the taper and pops it out.
Yes -- normally, the end of the leadscrew bumps the back of the taper to remove most things -- but sometimes a tool may have too short a taper for this. I've made extensions on some live centers and such to deal with this nuisance. A piece of brass can be turned to fit and will do the job nicely.
[ ... ]The Kroil is a penetrating oil -- for getting things unstuck -- not for normal lubrication.
WD-40 will evaporate quickly, leaving no protection for your machine's metal surfaces. It's real purpose is to absorb moisture and carry it away -- not to stick around and protect things.
Get some "Vactra No. 2" waylube and use it to coat the ways and other sliding surfaces of the machine. This will stick around and protect your machine from the problems of thermal cycling, which causes moisture to condense on the exposed metal.
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Maybe so -- but the casting with the motor mount and the pulley should all be re-used. Note that it is designed to pivot, so the weight of the motor keeps tension on the flat belt. You reach over the headstock and pull the motor towards you to slack the belt to change it.
An alternative setup would be overhead shafts carrying the pulley, with the belts running up -- as the machine was designed to use originally. The casting with the pulleys and motor looks like a factory design for adapting such a machine to a local motor, instead of overhead shafts.
Actully, it should be "DoN." (The period is part of it.) Shrink the 'o', and expand the period a bit, and it looks like "D.N." (my initials). It also can be read as my first name.
And -- since there are other "Don"s posting to the newsgroup, it helps to keep track of who said what.
I'll bet that it will be driven nicely enough by the ID of a V belt anyway.
Good Luck DoN.