Drill Press Question

Leu Custom

Leu Custom

Joined
Jun 2, 2007
Messages
1,354
Hi guys,

I was using my drill press tonight to drill some holes using a 1-1/4" wood drilling type bit (no flutes) like SPEEDBOR type...basically got 3 prongs and ya I admit the piece being drilled wasn't very sturdy and a bit goofy when it came to being flat....

anyways, the drill started to wobble and wobble and wobble and i barely made it though the piece of plywood, but towards the end, the CHUCK just fell out!

My question is, how do i get it back on? A mallot? it doesn't look like there's any fastening device or anything like that.

Only the head of the chuck came off, the shaft? is still in the press.

Thanks in advance!

Pohan
 
Clean everything real good, and push it back on.
Make sure there's no burrs or anything too if it spun.

You can raise the table and bring the quill down for a final press, or give it some LIGHT taps straight up with a mallet.

It's a seizing taper, so it should hold on its own.
 
I don't have much to add to what Brian said.

The wallowing side to side put side loads on the chuck which released it from the jacobs taper.

It is a locking taper and it needs to be very clean. I always use acetone for this job. No oil and not even a spec of dust. I spin them together with light pressure and feel for grit before running it on.

Don't tap on the jaws - run them in.

Don't bludgeon your spindle, you'll brindle the bearings. I use a few sharp taps with a brass hammer around the face of the chuck and measure runout. The low side of the runout gets another tap.
 
Thanks guys! I just used a rubber mallot with a few light taps. Several dozen holes later in steel and it's still on! Thanks Brian and Nathan!
 
If you just look there is some type of screw that holds it on. The screw must have fallen out. It is usually an Allen screw that is the one that they put there.
 
richard thurman said:
If you just look there is some type of screw that holds it on. The screw must have fallen out. It is usually an Allen screw that is the one that they put there.
Click to expand...


I am aware that some chucks include a little screw in there, but a lot of this sort of stuff doesn't. So, while I know what you're talking about, I suspect his probably doesn't have a screw. Except for a little cordless drill I have, nothing in my shop uses one. *shrug*
 
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