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The spindle with the chuck attached keeps falling out of my drill press. I can push the spindle (arbor shaft) up into the machine, but it later falls down. How do I fix this?

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  • Bruce Hathcock May 11, 2010

    If the shaft keeps falling out the locking spring is not engauging need to know the type of drill you are suing.

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Get something like brake clean and spray both parts the shaft and internal socket and then wipe with a paper towel. Next put the shaft into the socket and "tap" into place with a block of wood on the drill chuck with the jaws retracted. You might have to "tap" a little hard if you know what I mean but this will seat the tapers and you should not have a problem for a while.

Posted on Nov 17, 2009

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2 Answers

How do I make the spindle chuck stay in the quill of my model FDM 16 SPC drill press? I have forced it down on a block of wood. It will stay for a while that fall out.


16 speed should have a Morse taper
for the std drill chuck

to fit a different chuck the morse taper needs to be emery sanded
and the replacement chuck should stick
after using the wood block pressure press method

if not you need a new morse taper for that spindle chuck


hint
i had my drill accuracy and off center spin tolerance down to one thou

with stretched old belts I got more speeds than 16
for special jobs
my 16 speed used a morse taper two for the drill chuck



this picture says its a spindle chuck
26313356-3kt1rk2qq1yye1uaamrjudob-5-0.jpg morse taper

26313356-3kt1rk2qq1yye1uaamrjudob-5-1.jpg

26313356-3kt1rk2qq1yye1uaamrjudob-5-3.jpg

Oct 16, 2016 | Drills

1 Answer

Where can i find a 5/8 in. chuck for a Pit Bull CH-16NF Drill press


Take it to a local engineering sales shop. They are all basically the same and fit into the shaft with a morse taper. You just need the correct taper.

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  • 5/8 Drill Chuck ' eBay 2q== www.ebay.com/bhp/5-8-drill-chuck Suitable for drill presses or lathes spindle accepts R8 shank. Chuck key and R8-JT33 arbor are also included in the package. Special quenching treated ...
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    Jun 05, 2016 | Drills

    1 Answer

    Chuck keeps falling off spindle


    this happens when the surfaces of the tapers both external and internal are damaged or have burrs
    use fine emery paper to clean the surfaces
    then put the chuck into the spindle taper and using a piece of wood pull the feed handle down rapidly so that the chuck is hit back up into the spindle

    Nov 03, 2015 | Drills

    1 Answer

    Chuck falls off the spindle


    The cheuk is a morse taper (like a cone shape) fit to the shaft, if it comes loose just take a brass faced hammer and whack it back on.

    Dec 19, 2010 | Drills

    1 Answer

    I have a Guardina Power 5 speed heavy duty drill press, model number DP-MINI 1/2 inch chuck. The chuck will not stay on the spindle. There doesn't seem to be any set screw, threads or any type of method...


    The chuck is held in by the tapered shaft and friction. Make sure the tapered shaft on the chuck is clean with no burrs. Do the same for the socket side in the spindle. Swing the table out of the way and set a wood block under the chuck. Bring the spindle/chuck down into the block quite firmly which should lock the two tapered parts together. Hope this helps as it worked on my drill press!

    Nov 19, 2010 | Garden

    1 Answer

    Drill press


    No there isnt. the chuck has a taper fit and needs to be cleaned and installed correctly. Use something like a brake clean or carb cleaner and spray the shaft and the internal socket of the chuck, wipe both clean with a paper towel and then move the table out of the way and with the chuck jaws fully retracted use a piece of wood and "seat the chuck" I usually strike the wood a couple of times. this should work as long as the tapers are not that worn.

    Jul 16, 2010 | Black & Decker BDDP100 10 IN. DRILL PRESS...

    1 Answer

    Dayton drill press, How do you remove the chuck? It has a Wilton 1/2 chuck 3z568 model


    If the spindle has a slot in it above the chuck and you can see the top of the chuck arbor in that slot then you need to get a wedged piece of steel commonly called a drift , insert in the slot so it bears on the top of the arbor and the top of the slot and hit it with a hammer. This will knock the tapered arbor loose from the spindle and it should fall out. Hope this helps you.

    Jan 26, 2010 | Drills

    1 Answer

    Chuck falls out of drill press


    There is a long tapered hole in the spindle of the press known as a Morse taper. It holds a 6 or 8 inch morse taper arbor which is attached to the drill chuck. This is made to be removed frequently by putting a wedge shaped key into a horizontal hole in the drill press and giving it a little tap. This is for making tool change that involve removing the chuck. If you had two such tools (say two different style chucks) they would each have their own dedicated morse taper arbor. But there is also a short tapered cyclinder on the chuck end of the morse taper arbor, with a matching hole in the back of th chuck. This is not intended to come apart frequently, but it can be disassembled. I'm not sure which one is coming apart, but regardless of which one it is, you might try this fix. Clean up any bumps at all on the oustide of the taper and inside the hole with sandpaper 200 - 300 grit. Use a dowel to hold the sandpaper in the hole, and use the motor to spin it. --- JUST BE CAREFUL that if it grabs that it doesn't grab you! Once it's all cleaned up, you can you the press aspect of the drill press to seat it in place. You also might have to replace the arbor. They don't cost all that much and are available from Grizzly.com. You specify the particular taper for BOTH ends of the arbor. The long end is a Morse 2,3 or 4, and the short end is specific to the drill chuck manufacturer, like JT-2 (Jacobs chuck taper 2). Write back if you need more help.

    Jan 07, 2010 | Drills

    2 Answers

    Chuck keeps falling off drill press


    While roughing up with sandpaper might work, but the usual problem that causes a chuck to fall off is a mismatched taper or either the chuck or the spindle has a dirty surface. The tiniest bloom of rust will cause this. Additionally a mismatch of depth will also cause a poor fit. To fit correctly the taper must be correct on both parts and they need to be clean and lightly oiled.

    If it is necessary to san these pieces, use a very fine wet or dry paper. I would not use paper beyond 320 and use a light oil such as kerosene or diesel oil rather than water. Check the dept by looking inside at the wear marks. If the inside of the chuck receiver shows wear so close to the bottom that you cannot ascertain any distance between the wear marks and the bottom, the chuck may be bottoming instead of tightening on the taper correctly. You can easily check it with some fine shim material or perhaps three to five thickness of aluminum foil. Cut five thicknesses to fit in the bottom of the chuck (not all chucks have actual bottoms and go clear through) but not on the walls that are tapered. Reinstall, and remove. Is the aluminum foil damaged/show contact marks? If so, did the chuck go on all the way and come off more easily? If so, the problem is bottoming. Bottoming is quite rare but can happen when different than spec chucks are used.

    You might also examine the surfaces of both. They should look pristine with no scratches and marks. If not, that could also be the problem. A correct taper fit is difficult to spin, or remove during normal drilling operations.

    Good luck!

    Jan 17, 2009 | Drills

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