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How the $#%! do you get a rusty chuck off?

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John in MA

04-02-2001 18:18:58




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Another day, another problem... I'm trying to take the chuck off an old B&D 1/2" drill I got at a yard sale. It's NOT a reversing drill, so I didn't forget to take the screw out. First I tried whacking a pin-punch stuck in a key hole, strap wrench, penatrating oil, and a heat. Those didn't work, so I chucked up a hex shaft and tried driving the other end with a 1/2" Harbor Freight impact wrench. All I did with that was spin out the inside of my 1/2"-to-hex adapter. Getting to like the Craftsman warrenty.

So, does ANYONE have a trick for doing this? I really don't want to toss a nice drill because of a bad chuck. A pipe wrench+cheater pipe would work if I could keep the drill from spinning, but I haven't figured out how to do that yet. At least not without damage.

BTW: Who can point me to a source of those left-hand thread screws for drill chucks? Everyone has the chucks, just no screws.

Thanks

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Ron

04-10-2001 14:05:00




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 Re: How the $#%! do you get a rusty chuck off? in reply to John in MA, 04-02-2001 18:18:58  
Use as large an allen wrench as will fit and insert the short end in the chuck and tighten it as tight as you can. Then use a heavy piece of wood and strike the allen wrench. This has worked good for me.



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John in MA - success!

04-04-2001 19:05:42




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 Re: How the $#%! do you get a rusty chuck off? in reply to John in MA, 04-02-2001 18:18:58  
Thanks for all the suggestions. I put the complete gearcase in a vise, along with the rotor clamped between some wooden blocks. A little work with a pipe wrench and it came right off.

Unfortunatly, getting the chuck off hasn't been that helpful. I never tested the drill prior to all this screwing around. Once I started in on the rest of it, I found some very burned, very blown windings on the stator. How's that for luck?

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Dan McManus

04-03-2001 16:44:14




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 Re: How the $#%! do you get a rusty chuck off? in reply to John in MA, 04-02-2001 18:18:58  
John try Arrow Ind. Supply Co. Web site>Link
They>Link have an 800 number and if you want to buy 1 that's how many they will sell. So far they have had anything I've called for in the line of fastners.



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Harold Hubbard

04-03-2001 04:11:10




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 Re: How the $#%! do you get a rusty chuck off? in reply to John in MA, 04-02-2001 18:18:58  
Disassemble the drill, take the shaft with the chuck on it to a machine shop. Have them chuck it in a lathe and cut the chuck off, turning it down a little at a time until nothing is left but the shaft and a little bit of the chuck threads. Tis is a last resort and only worthwhile if you can get it done for little or nothing, possibly by a friend who has a lathe or works somewhere where he can use one.

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Bus Driver

04-03-2001 15:28:45




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 Re: Re: How the $#%! do you get a rusty chuck off? in reply to Harold Hubbard, 04-03-2001 04:11:10  
The basic premise seems to be that the existing chuck is trash. Tape up all the ventilation holes in the drill and tape over the switch to keep grit out. Grind the chuck on opposite sides. Use a bench grinder or a portable 9", 7' 4 1/2", what ever you have. Don't let it get too hot. When the remaining part is less than 1/8" thick, place the chuck on whatever you use for an anvil and strike it with a hammer. A few blows should do the job. Removing old bearings the same way works well. I start most bearings on non-electrical shafts by cutting with the torch and completing with a grinder. Don't use a torch on the drill shaft! The heat may ruin the armature.

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John in MA

04-03-2001 09:30:41




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 Re: Re: How the $#%! do you get a rusty chuck off? in reply to Harold Hubbard, 04-03-2001 04:11:10  
Well, that's easier said that done. The shaft that the chuck is on is buried deep inside the front gear housing. The reason I'm trying to take the chuck off is to get that shaft out and replace the front bearing. Chuck comes off the front, shaft pulls out the back.



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Tom

04-04-2001 18:26:23




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 Re: Re: Re: How the $#%! do you get a rusty chuck off? in reply to John in MA, 04-03-2001 09:30:41  
I took off a stuck chuck by machinning a piece of shafting to fit over the front of the chuck, with holes for pins to engage the 3 holes for the key. Held this with a pipe wrench. I had the drill apart and was able to make some kind of jig, don't remember just what, to hole the other end which I placed in a vise. This may not work for all or a lot of drills as you need to be able to hole the inside end of the shaft.

Tom

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tools

04-02-2001 18:46:17




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 Re: How the $#%! do you get a rusty chuck off? in reply to John in MA, 04-02-2001 18:18:58  
Don't know for sure about a drill, but I've had the armature of my Dremel moto tool in soft pine jaws I've fitted to my bench vise several times. Also, if you can disassemble it enough, you might find a spot on the shaft somewhere that isn't too important that you could get some vise grips on. Good luck.

As for the left hand thread screws, I've had exceedingly good luck in the last 4 places I've lived (which includes the not so well staffed Meridian MS) just looking under "nuts and bolts" or "fasteners" for a regular old nut and bolt company. If they don't have it, you can bet they can get it, BUT you may have to buy 100! Last, there's a company I used to buy stuff like this from called "Small Parts". Try an internet company search. They have LOTS of wierd stuff like this including left hand taps and dies, may have to make one. If you're reduced to "Small Parts" and can't find them online, drop me a note I'll go looking through my book boxes for an old catalog. I moved recently and havn't unpacked completely yet (does anybody ever?).

Tools

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