Justin Keller Posted June 6, 2012 Share Posted June 6, 2012 Hi folks, I'm having some trouble figuring out how to disassemble my hand crank drill press. Specifically, the one gear that is still attached. The other gear was attached the same way, but after I soaked it in kerosene it turned out by hand. There isn't a head or slot on it to use a wrench or screwdriver, but there is a hole in the edge of the gear which looks like it might be for this purpose, except it's not threaded or anything. Is there a special tool for this, or am I just missing something simple? Quote Link to comment Share on other sites More sharing options...
bigfootnampa Posted June 6, 2012 Share Posted June 6, 2012 It looks like it has a pin in it. Did you try running a pin punch through it? Quote Link to comment Share on other sites More sharing options...
macbruce Posted June 6, 2012 Share Posted June 6, 2012 How about a pic of the back side? Quote Link to comment Share on other sites More sharing options...
Justin Keller Posted June 8, 2012 Author Share Posted June 8, 2012 The backside is drilled through and threaded, the bolt runs through the gear and screws into the frame. I'll try and get a picture, but that's basically it. I just don't have a way to grip the bolt to remove it. Quote Link to comment Share on other sites More sharing options...
macbruce Posted June 8, 2012 Share Posted June 8, 2012 From the angle of the pin it doesn't look like you can drive it out from the other side. Looks to me like you tried some pliers to turn the shaft out and failed........Try thay again with some heat on the backside of the threaded shaft............Why do you need to take it apart? Quote Link to comment Share on other sites More sharing options...
Justin Keller Posted June 16, 2012 Author Share Posted June 16, 2012 Here's the backside of the frame, it's just threaded for the bolt. Also, I've attached a picture of the other gear, which turned out by hand. I'm taking it apart to clean it up and paint it before re-assembling it for use. Quote Link to comment Share on other sites More sharing options...
macbruce Posted June 16, 2012 Share Posted June 16, 2012 That's always the way of it, the first one comes out by hand and you know you're in for it on the other..... Quote Link to comment Share on other sites More sharing options...
Armand Tatro Posted June 16, 2012 Share Posted June 16, 2012 Looks to me that gear idles on that shaft/bolt. If so that hole would be a oil hole to lubericate the gear turning on the shaft. Which direction does the gear rotate? Shaft/bolt SHOULD turn out REVERSE to direction of gear rotation. Put a pipe wrench on the head of the shaft/bolt and see whaf happens. Reasemble with never-seeze. Let us know results. Armand Quote Link to comment Share on other sites More sharing options...
ciladog Posted June 16, 2012 Share Posted June 16, 2012 If the gear spins on the bolt then there is no need to try to remove the pin (looks like it is an oil hole that someone stuck something into). Soak it with PB Blaster. Then weld a large nut to the head of the bolt from the inside of the nut. After you get the bolt off you can cut or grind off the nut. Great minds think alike. :) Quote Link to comment Share on other sites More sharing options...
Larry H Posted June 16, 2012 Share Posted June 16, 2012 Don't try to weld inside the nut with a mig, use a stick, MIG isn't very good for plug welding Quote Link to comment Share on other sites More sharing options...
Armand Tatro Posted June 16, 2012 Share Posted June 16, 2012 Some more thoughts and questions. Do you have any pictures of the drill before you started disasemabley of the drill? The gear you have removed; where was it mounted and did it mesh with the gear you want to remove? Armand Quote Link to comment Share on other sites More sharing options...
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