craftsman 150 drill press

Not all drill presses have a quick disconnect at the drive spindle business end. I had a 60’s Craftsman drill press with a male Jarno taper and a threaded collar and that collar went over all of that connection to hold it together. That set-up made it hard for me to find attachments that would fit! It was a sole source business for Sears at the time! “Andre” attached a manual that shows another example of a male Jarno taper for mounting. Yes, if you see elongated slots in the quills side and through the drive spindle then I would suspect a Morse or some kind of removable male taper. I have not seen nor heard, but I suppose there are threaded mount ones out there too. Actually, come to think about it, my mag base drill press has a threaded mount. If you have the Jarno male mount you will need wedges to get the chuck off. Do not try this without the wedges. You will more than likely wind up with an unrestorable mess without them. The link below should better explain my feeble attempt…Good Luck.
http://www.jacobschuck.com/drill-chuck-install.asp
 
If my memory serves me correctly? You have that threaded collar affair like I explained above. That collar you see with the shallow holes in it. I think it has RH internal threads. Try and turn it with a spanner, lube it first…Good Luck.
 
If that collar is not for retaining anything I'm wondering if it was intended as an extractor in place of a drift key:thinking:
 
Don B said:
If that collar is not for retaining anything I'm wondering if it was intended as an extractor in place of a drift key:thinking:
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It holds it all together and maybe helps disconnect too, can not remember. Sears sold many attachments for the drill press back then, like the planner head. I think the engineers wanted to make sure that nothing flew off under power, like the planner head. That would hurt! So maybe they came up with the threaded collar idea?

Edit:The vintage 60’s Craftsman drill press that I had came with a 6” quill travel. I have looked at many a drill press since then and that feature is hard to find! I remember the 6” travel coming in handy when I was drilling out a Model A crank for oil presser!
 
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chips&more said:
It holds it all together and yes helps disconnect too. Sears sold many attachments for the drill press back then, like the planner head. I think the engineers wanted to make sure that nothing flew off under power, like the planner head. That would hurt! So maybe they came up with the threaded collar idea?
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Yes that makes sense, and as you said some penetrating oil on it for a bit and see if the collar will loosen up, I'd put something like a C shape between the collar and the chuck though so as much as the thread stays engaged as possible if trying to use it as an extractor.:))
 
i'll give it another try with using a c- clip as a spacer, will let y'all know what happens
 
I just found this ebay listing of the chuck/mounting in question. The pictures will hopefully help you figure out what is going on...Good Luck.

http://www.ebay.com/itm/Jacobs-633C...5?pt=BI_Tool_Work_Holding&hash=item540a8d372d

Edit: Not understanding your C-Clip idea? Please look at the ebay pictures, especially the far right one. Get a spanner wrench that fits, lube up the area, lock the quill and then turn and pray. Or is it pray and turn? Sometimes, swearing helps too! Anyway, please take note on its RH threads and the direction you need to turn for removal.
 
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