Drill chuck spring

Re: Drill chuck spring

Todd Hughes

>In my experance it can be very hard to put the springs into these chucks jaws.They take 3 small springs and is hard to hold everything in place as you put everything back together.Have done it but took alot of cussing.Now I just look for a donar drill that I can take the entire chuck off of and use that.....much easier....Todd

Re: Drill chuck spring

Skip in Falls Church

>Hi Todd,

Well, I guess I'll keep an eye out then. While I'm doing that I may try a homemade fix. Like I say, it works as it is, it would just be nicer if the jaws retracted by themselves. :)

Skip

Re: Drill chuck spring

Roger Nixon

>I've done it. IIRC, I used the spring from a retractable ball point pen. As Todd says it is a PITA but a MF #5 in good condition is a nice drill and worth fixing or finding a donor chuck.

Re: Drill chuck spring

Skip in Falls Church

>Hi Roger,

Well, it's not beautiful - but it works fine. I disassembled the chuck - but there doesn't seem to be any place to set any springs. I do have a few old ball point pen springs - there just doesn't seem to be a place for them to go. When I took the chuck off my #2 there was some sort of a plate that the springs seemed to rest on. There's no such plate in the chuck for the #5. Is it missing a piece besides the springs? Or do the springs anchor to a place that is not intuitively obvious to me?

Skip

Re: Drill chuck spring

Bill Houghton, Sebastopol, CA

>On some eggbeater chucks I've disassembled, there's little VERY shallow depressions in the sides of the jaws, down toward the bottom. The idea is to assemble the jaws in a sort of triangular configuration with the jaws as points of a triangle and the springs as the sides of the triangle, then push this assembly into the body of the chuck and real-quicklike-while-they're-not-looking-and-before-they-pop-out-again screw the bottom plate of the chuck on.

I've never successfully reassembled such chucks. Instead, after several attempts, resulting in the always satisfying but rarely productive "scream and throw things" school of chuck assembly, I move on to another project. Fortunately, they weren't valuable drills or chucks.

Re: Drill chuck spring

Skip in Falls Church

>Hi Bill,

Hmmmm, that doesn't sound very encouraging. :( Actually, it sounds like it's a darn good thing the chuck works as it is. Although I'll probably take a shot at it. Stuff like this is just no fun unless you suffer a little. :)

Thanks,

Skip

Re: Drill chuck spring

William Duffield, on the Cohansey

>I figure the original manufacturers of these things must have assembled hundreds of them every week. They had to do it quickly and efficiently, or they wouldn't have been in business very long. I don't know how much time they spent designing and building a jig or a fixture or some special tool to do it, but there must be some trick that would make it easy for your average knuckle-dragger to restore them. Maybe a dowel and a couple of small rubber bands would work?