Discussion:
Boxford lathe tailstock quill jammed
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m***@yahoo.com
2014-03-30 16:31:22 UTC
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Hi,

I removed a hard centre from the tailstock of my Boxford lather but went too far and now the quill seems to be jammed. The handwheel won't turn more than a few degrees in either direction. Can anyone tell me what I need to do to free the tailstock quill ?

Thanks,

Mike
Dave Baker
2014-03-30 16:42:12 UTC
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Post by m***@yahoo.com
Hi,
I removed a hard centre from the tailstock of my Boxford lather but
went too far and now the quill seems to be jammed. The handwheel
won't turn more than a few degrees in either direction. Can anyone
tell me what I need to do to free the tailstock quill ?
Thanks,
Mike
Push the quill back hard with one hand while turning the wheel to engage the
thread again.
--
Dave Baker
m***@yahoo.com
2014-03-30 22:29:20 UTC
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Post by Dave Baker
Push the quill back hard with one hand while turning the wheel to engage the
thread again.
Thanks Dave,

The quill is so far inside the barrel that I had to put a bar between the toolpost and the quill and try to load it up by turning the saddle handwheel whilst turning the tailstock handwheel clockwise but it worn't turn despite loading it as high as I dare.

Any other ideas ? Can anyone tell me how it comes apart, it doesn't seem very obvious...

Mike
shazzbat3@yahoo.co.uk
2014-03-31 19:03:41 UTC
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Post by Dave Baker
Push the quill back hard with one hand while turning the wheel to engage the
thread again.
Thanks Dave,

The quill is so far inside the barrel that I had to put a bar between the
toolpost and the quill and try to load it up by turning the saddle handwheel
whilst turning the tailstock handwheel clockwise but it worn't turn despite
loading it as high as I dare.

Any other ideas ? Can anyone tell me how it comes apart, it doesn't seem
very obvious...

Mine is a Denford, closely related to Boxford, or so I'm told. I'll have a
look tomorrow.

Steve
shazzbat
2014-04-01 15:17:49 UTC
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Post by Dave Baker
Push the quill back hard with one hand while turning the wheel to engage the
thread again.
Thanks Dave,

The quill is so far inside the barrel that I had to put a bar between the
toolpost and the quill and try to load it up by turning the saddle handwheel
whilst turning the tailstock handwheel clockwise but it worn't turn despite
loading it as high as I dare.

Any other ideas ? Can anyone tell me how it comes apart, it doesn't seem
very obvious...

Right, I've taken mine to bits this afters. Does yours look like this? -

Loading Image....html?sort=3&o=1

If so, taken apart it looks like this -

Loading Image....html?sort=3&o=0

The handwheel is attached to the chrome collar by a circlip, I haven't
removed that. Removing the assembly is a matter of three allen screws,
easily accessible. Then you should be able to remove the whole deal in one
piece. Another possibility is that the burr on the end of the quill is now
jammed in the housing. In this case, beating it back towards the headstock
with a hide mallet should free it off. Have you removed the screw on top
which locks the quill? It's a crude arrangement, a bolt with a bit of round
brass on the end with a wedge such as you see on a bicycle cotter pin. If
you screwed that down hard it may not have released. Turn the lever so that
the top of the lever is flush with the top of the bolt and bash it
downwards.

Hope some of this helps.
Steve
John H
2014-03-30 23:03:31 UTC
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Post by m***@yahoo.com
Hi,
I removed a hard centre from the tailstock of my Boxford lather but went too far and now the quill seems to be jammed. The handwheel won't turn more than a few degrees in either direction. Can anyone tell me what I need to do to free the tailstock quill ?
Thanks,
Mike
As the Boxford is a copy of the South Bend lathe you might find that the handle end of the tailstock undoes.

On a South Bend the handwheel is removed allowing the end of the tailstock to be unscrewed and the quill assembly to be withdrawn.

John H
Ben
2014-04-01 15:23:50 UTC
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Post by m***@yahoo.com
Hi,
I removed a hard centre from the tailstock of my Boxford lather but went too far and now the quill seems to be jammed. The handwheel won't turn more than a few degrees in either direction. Can anyone tell me what I need to do to free the tailstock quill ?
Remove grub screw holding tailstock handle. Use rubber mallet to eject barrel
and screw assembly from tailstock casting. Position vertically in vice, use
penetrating fluid / freeze heat to separate centre from barrel.

Loading Image...

--
Richard Edwards
2014-04-02 15:47:09 UTC
Permalink
Post by m***@yahoo.com
Hi,
I removed a hard centre from the tailstock of my Boxford lather but went too far and now the quill seems to be jammed. The handwheel won't turn more than a few degrees in either direction. Can anyone tell me what I need to do to free the tailstock quill ?
Thanks,
Mike
I would put a MT drill in the quill and twiddle it clock and anti-clock
whilst gently rotating the handwheel to drive the quill out. There is a
chance that the key is not aligned with the keyway.

Richard
m***@yahoo.com
2014-04-07 11:17:00 UTC
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