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One Way Chuck stuck

G

Glen Nelson

Joined
Mar 23, 2021
Messages
7
Likes
1
Location
New Norway, Alberta
I purchased a Delta Rockwell lathe that had a Oneway chuck attached. it works excellent but when I attempted to remove the chuck it seems to be almost welded on the threaded spindle. Is there some way that I may loosen it to remove it? Thanks for your help.
 
I had the same problem on my harbor freight lathe.. even the original spanner wrenches were spread wide from prior owner trying to remove it I guess.. what I ended up doing was to squeeze back one of the spanners to fit and tie it to the lathe bedways to keep it in place then stuck one of the chuck bars (mine uses 2 bars to open/close the chuck, as opposed to using a single key) into the main chuck body (part of the threaded hub) and heated the headstock spindle and chuck threaded area with a heat gun for a while (til it was JUST too hot to grab comfortably) and then used a mallet to whack the bar and it popped the chuck loose.. since then I made a washer (cut from a piece of nylon plastic) between headstock and chuck.. One other thought - Look very closely at your chuck where the threaded portion is and see if you see any signs of a set screw (present or missing) - some chucks came with one for lathes that had reverse.. someone might have put a setscrew in there locking your chuck to the threads.. hopefully if that is the case, threads have not been damaged in attempting to remove the chuck... I'd recommend checking THAT first of all before starting in on my first method.. :)
 
Glen, I see where you just joined the forum yesterday, so welcome. I don't want to presume anything because I don't know how much experience you have. This might sound like overly basic advice, but are you applying the spindle lock when you're trying to loosen the chuck? If you can lock the spindle, you could try a strap-type wrench like plumbers use occassionally on pipe fittings. Most big box stores have them. Get one with a long handle, if possible, to get a little extra leverage. As Brian mentioned some turners use a plastic washer where the chuck seats. I haven't personally needed them. I'm sure you've already applied some PB Blaster or other shot of penetrating oil?
 
I don't use Oneway chucks and apologize for not knowing whether they have a grub screw in the insert. If there is one, it could be locking the chuck in place.
 
John Dillon said:
Glen, I see where you just joined the forum yesterday, so welcome. I don't want to presume anything because I don't know how much experience you have. This might sound like overly basic advice, but are you applying the spindle lock when you're trying to loosen the chuck? If you can lock the spindle, you could try a strap-type wrench like plumbers use occassionally on pipe fittings. Most big box stores have them. Get one with a long handle, if possible, to get a little extra leverage. As Brian mentioned some turners use a plastic washer where the chuck seats. I haven't personally needed them. I'm sure you've already applied some PB Blaster or other shot of penetrating oil?
Click to expand...
Hi John and Brian, I used both of your methods and. Was successful in removing the chuck. The lathe is not a delta Rockwell but Beaver Rockwell made in Guelph, Ontario. It is a grey cast iron model with a morse taper threaded to a bolt through baring housing. In my successful attempt I seem to have altered the baring surface and now my head with the pulleys is binding. Do you have any suggestions? The lathe is an old one. I remember in my high school days using one like it when I was engaged in shop classes. This lathe was neglected in a moist environment and the threads were rusty. I guess that is why I got it for a song.
 
Glen Nelson said:
Hi John and Brian, I used both of your methods and. Was successful in removing the chuck. The lathe is not a delta Rockwell but Beaver Rockwell made in Guelph, Ontario. It is a grey cast iron model with a morse taper threaded to a bolt through baring housing. In my successful attempt I seem to have altered the baring surface and now my head with the pulleys is binding. Do you have any suggestions? The lathe is an old one. I remember in my high school days using one like it when I was engaged in shop classes. This lathe was neglected in a moist environment and the threads were rusty. I guess that is why I got it for a song.
Click to expand...
Thanks John, all is well. The chuck is off and the binding of the sealed bearings is corrected. Thanks for your quick response!
 
John Dillon said:
Glen, I see where you just joined the forum yesterday, so welcome. I don't want to presume anything because I don't know how much experience you have. This might sound like overly basic advice, but are you applying the spindle lock when you're trying to loosen the chuck? If you can lock the spindle, you could try a strap-type wrench like plumbers use occassionally on pipe fittings. Most big box stores have them. Get one with a long handle, if possible, to get a little extra leverage. As Brian mentioned some turners use a plastic washer where the chuck seats. I haven't personally needed them. I'm sure you've already applied some PB Blaster or other shot of penetrating oil?
Click to expand...
Thanks for your suggestion. The chuck is off and all is well. Thanks for you speedy response!
 
Glen Nelson said:
The lathe is not a delta Rockwell but Beaver Rockwell made in Guelph, Ontario. It is a grey cast iron model with a morse taper threaded to a bolt through baring housing
Click to expand...
Glen, you're lathe is something like this one?.....just curious.
1617125090330.png
 
Glen Nelson said:
Thanks for your suggestion. The chuck is off and all is well. Thanks for you speedy response!
Click to expand...
Glen, glad to hear all is well with getting the chuck off. I just saw Odie posted a photo and looks similar to what I saw when I Googled the lathe as you described. Best of luck as you venture deeper into the world of turning and get your lathe tuned-up. BTW - You will find a lot of help on this forum and I'm sure there a few folks that probably have experience with your make/model of lathe too so don't be bashful about asking for help when needed. :)
 
John Dillon said:
Glen, glad to hear all is well with getting the chuck off. I just saw Odie posted a photo and looks similar to what I saw when I Googled the lathe as you described. Best of luck as you venture deeper into the world of turning and get your lathe tuned-up. BTW - You will find a lot of help on this forum and I'm sure there a few folks that probably have experience with your make/model of lathe too so don't be bashful about asking for help when needed. :)
Click to expand...
Thanks
 
My Nova chuck came with a thin Teflon washer. How did I double on my reply? Obviously computer error.
 
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