free up rusted drill chuck?

[Tim .]

A while ago I got a old Milwaukee hammer drill from my father in law.  It works fine except the drill chuck is siezed up with rust.  I cleaned it up as best I could and started at it with penetrating oil, no dice.  I then thought about heating it up, but I can't really go at it because I don't want the heat to damage bearings/plastic.  I haven't been able to figure out how to remove the chuck either.  So, I tried just leaving the whole thing in some motor oil for about a week and that also didn't work.
 
Ideas?
 
-Tim F

[Have Blue]

Flush out the motor oil and go back to the penetrating oil.  I've used this stuff:  http://www.gibbsbrandlubricant.com/

Smack the parts gently with a mallet, hose it down with more penetrating oil, let sit for an hour, repeat.

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[Kevin Crowley]

Not blowtorch level heat.  While sitting for an hour let it sit in a 150F oven.  then add more oil and the try moving it.

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[Matt Wittmann]

I have some stuff that might work. Ill bring it on tues. Its really great stuff. Should work

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[Matt Wittmann]

Northen sells it.  Kb 88. I bring some in on tues

On Aug 13, 2012 1:10 PM, "Tim ." <da...@hotmail.com> wrote:

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[Matt Wittmann]

Sorry. I meant grainger

[Tom Gralewicz]

The two best penetrants I have used are Kroil and PB Blaster.  Kroil is viewed, in the restoration business, as one of the best for old rusty parts.

I would actually tap it with a hard hammer, just not hard enough to nick the chuck.  What you are trying to to is make the parts vibrate so the oil can penetrate.

Sorry. I meant grainger

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Tom Gralewicz
Miller Electronics Recycling
(414) 380-1716
www.deadcomputers.com

[Mrspeed700]

Tom is right on penitrents, if the chuck is open far eunph to see screw at btm, pull out the screw and chuck should unscrew counter clock wise. It needs a quick snap to release it. then put new one on..
Rich

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