delta drill press chuck falls out.
John van Veen
Does anyone have any suggestions on how to keep a 1/2 chuck from falling
out of a delta drill press. Just finished a great project and finishing
touch was to drill out a tennon. Soon as I finished the chuck fell out
and bit hit wood :-(
When cutting plugs the darn thing keeps coming off and wrecking wood. I
have tried a rubber mallet and pressing on using the drills arm tension.
Should the shaft be dry, or some kind of sticking (breakable) adhesive.
I may want to get it off someday Happens to often. Any ideas.
John Lehman
On Sun, 29 Sep 1996 22:07:07 +0000, John van Veen
<jvan...@north.nsis.com> wrote:
SNIP
>Does anyone have any suggestions on how to keep a 1/2 chuck from falling
>out of a delta drill press. Just finished a great project and finishing
>
fixed it by lightly sanding ,with emery cloth, both the inside and
outside taper. I think what happens is that small amounts of dirt or
rust get on the taper and it doesn't seat properly. The sanding will
also roughs the surface up slightly and help it stick a little better.
Good Luck
John Lehman
john langley
John van Veen <jvan...@north.nsis.com> wrote:
>Does anyone have any suggestions on how to keep a 1/2 chuck from falling
>out of a delta drill press. Just finished a great project and finishing
>touch was to drill out a tennon. Soon as I finished the chuck fell out
>and bit hit wood :-(
>When cutting plugs the darn thing keeps coming off and wrecking wood. I
>have tried a rubber mallet and pressing on using the drills arm tension.
>Should the shaft be dry, or some kind of sticking (breakable) adhesive.
>I may want to get it off someday Happens to often. Any ideas.
John,
Sounds like the Morse taper which connects the spindle to the chuck
is garged up. In all the Delta DP's I have seen, there are really two
tapers to worry about, one into the chuck itself (often a #33 taper)
and another in the end of the spindle (usually a #1 or #2) with a
short adapter in between. They hold everything together by friction
and if they slip it is usually because some sort of crud has gotten on
the mating surfaces. I have found that carefully cleaning up the
surfaces using acetone (no nearby open flames please) usually restores
a tight fit. After careful cleaning, fit the chuck into the spindle,
open it all the way (to withdraw the jaws) and give the bottom of the
chuck a sharp whack with a rawhide mallet or the like to seat the
tapers.
Sometimes under severe abuse the surfaces will get chewed up to the
point where they are too rough to hold. In that case you can usually
replace the male part of the taper and have a machine shop ream the
female part.
regards
john langley
paul royko
In article <324fbf6a...@news.cris.com>, jo...@cris.com (John Lehman) wrote:
> On Sun, 29 Sep 1996 22:07:07 +0000, John van Veen
> <jvan...@north.nsis.com> wrote:
> SNIP
> >Does anyone have any suggestions on how to keep a 1/2 chuck from falling
> >out of a delta drill press. Just finished a great project and finishing
> >
> I had the same problem with my drill press a while back. I finaly
> fixed it by lightly sanding ,with emery cloth, both the inside and
> outside taper. I think what happens is that small amounts of dirt or
> rust get on the taper and it doesn't seat properly. The sanding will
> also roughs the surface up slightly and help it stick a little better.
>
>
> Good Luck
> John Lehman
I found with my Delta 14" that the problem was the grease used in
shipping. Once I cleaned it off with a rag moistened with paint thinner,
the problem went away.
--
paul royko
Toronto, Canada
Life needs a Command-Z key.
P Congdon
The Morse taper shank on the drill chuck must be absolutely clean when it
is inserted into the tapered holder. This includes removing all grease
and oil. Obviously the mating surface of the holder must likewise be
cleaned. After wiping both surfaces clean wipe them again using a
solvent. I use xylol or tolulene.
Regards,
Phil
John van Veen wrote:
>
> Does anyone have any suggestions on how to keep a 1/2 chuck from falling
> out of a delta drill press. Just finished a great project and finishing
Craig Sterrett
Here is a note from www.jettools.com on the subject
Q: How do I keep the arbor and chuck from falling out of the drill press?
A: Clean the chuck taper, the arbor and the spindle taper with mineral spirits,
white glove clean. Open the chuck as if to hold the largest drill bit of its
capacity (jaws retracted). Install arbor in chuck, use a block of wood, and
small hammer, to seat the arbor in the chuck. Install chuck/arbor into the
spindle using the technique one firm (but not damaging) blow with the hammer.
That should do it.In article <324EF3...@north.nsis.com>,
jvan...@north.nsis.com says...
Gary
John,
Mine fell out too once when I was using the mortising attachment to the
drill press. Get out your Delta instruction booklet and follow the
directions carefully--that's what I did and the chuck stayed put. I
think the shaft and hole must be clean, and avoid touching it with your
fingers after cleaning it. I often wondered what magic is it that the
chuck stays in there _most_ of the time---must be some kind of "friction
fit," I guess.
Jeff Gorman
On Fri, 04 Oct 1996 01:53:18 GMT, Gary wrote:
~ Mine fell out too once when I was using the mortising attachment to the
~ drill press. Get out your Delta instruction booklet and follow the
~ directions carefully--that's what I did and the chuck stayed put. I
~ think the shaft and hole must be clean, and avoid touching it with your
~ fingers after cleaning it. I often wondered what magic is it that the
~ chuck stays in there _most_ of the time---must be some kind of "friction
~ fit," I guess.
I had the same problem with a Twaiwanese import. Both the chuck arbor
then the spindle were changed, but the problem continued.
I eventually traced this to a misalignment of the chisel holder. If
this is not accurately centred with the chuck, lateral forces develop
and cause the chuck to fall out.
This reinforces the advice that milling on a drilling machine is a bad
thing since they are not designed for such loads. A proper milling
machine has different arbor tapers and the chuck is held in place by a
drawbar that passes down the centre of the spindle.
Jeff
--
Jeff Gorman - West Yorkshire
je...@millard.demon.co.uk
WOODDON
The magic is a taper, the same thing that holds the chuck on a wood lathe.
Clean both metal surfaces then apply a very light machine oil then wipe
off the oil with a clean dry rag. let the oil dry a bit then slam the
drill chuck into the sleeve with a fast
upright movement and it should stay there for a long time.
Wooddon
ANNE B. WATSON
In a previous article, g.p...@worldnet.att.net (Gary) says:
>John,
>
>Mine fell out too once when I was using the mortising attachment to the
>drill press. Get out your Delta instruction booklet and follow the
>directions carefully--that's what I did and the chuck stayed put. I
>think the shaft and hole must be clean, and avoid touching it with your
>fingers after cleaning it. I often wondered what magic is it that the
>chuck stays in there _most_ of the time---must be some kind of "friction
>fit," I guess.
Lug the chuck down to a metalworking supply store and buy the appropriate
tapered reamer for it. Reamers are a hand tool, so turn off the drillpress
insert the reamer and take one complete turn, using a wrench.
Cover tapered end of the chuck with machinest blueing, let dry, insert
in shaft. The blueing should clean off where it is contacting the shaft.
If it doesn't clean off, use the reamer again.
Anne
--
blie...@gmail.com
> Does anyone have any suggestions on how to keep a 1/2 chuck from falling
> out of a delta drill press. Just finished a great project and finishing
> touch was to drill out a tennon. Soon as I finished the chuck fell out
> and bit hit wood :-(
> When cutting plugs the darn thing keeps coming off and wrecking wood. I
> have tried a rubber mallet and pressing on using the drills arm tension.
> Should the shaft be dry, or some kind of sticking (breakable) adhesive.
> I may want to get it off someday Happens to often. Any ideas.
John McCoy
news:0d26c614-faad-47e7...@googlegroups.com:
an answer. Thank you, blier1210.
John
Leon
leap year savings time. ;~)
Puckdropper at dot
dn...@giganews.com:
>
>
> I think that is a month shy of 19 years unless you don't participate in
> leap year savings time. ;~)
>
become a legal adult, and then pass the problem on to him!
The details of why and when are left to your imagination...
Puckdropper
--
Make it to fit, don't make it fit.