I had to re-cut the pinioin gear and clean up the rack because the 'taper pin' that secures the pinion gear was actually a bit of old allen key that had been forced into the hole. The rack gear had a lump out of every tooth as a result and the quill wouldn't move properly.
I had to make a new 3/8th x 24 TPI spindle nose, not so hard since there was enough meat on the original to turn it down and cut the new thread. The old chuck had some weird thread on it and a broken jaw so it wouldn't clamp anyway.
I re-seated the bottom bearing and replaced all the ball bearings with new ones. This improved the runout to +- 0.002".
I replaced the upper idler assembly with one I designed myself, the original motor mount was a shop made one that was hanging (badly) from a single bolt. I'm pretty sure that this drill (circa 1900) was originally driven from a common shaft via a lay-pulley at the bottom rear of the base casting. This is as close to the original as I am going to get with an electric motor drive.
Replaced the old chuck with a Jacobs I had from a cordless drill that had given up the ghost.
Then basically cleaned all the rust and scale off it, stripped out and cleaned the motor, replaced all the cabling and added a metal clad switch.
Re-paint and added the ball handles.
The motor is bolted through a wooden baseboard, and that sits on felt pads screwed through to the workbench, not too much vibration at all really. The only thing I am dissapointed about are the holes and drill marks in the table, I didn't know how to fix them so they are filled with resin filler for now.
Not a difficult job for an engineer, but since it was the first time I had attempted anything like this I'm quite pleased with it.
Lo Marshon,
What else (if anything) did you do with it, except the obvious and visible, like the nice paintwork/polish, change of motor (location, at least) and the drive system, machine knobs, etc.? I have one rather similar drill, but since I bought a mill,
itīs only been gathering (even more) dust and rust. But I might one of these days dig it up, and have some TLC bestowed upon it. I like that motor/drive mod, does the motor sit on rubber pads? Even if not, i guess it still will diminish the vibrations, compared to a column-mounted motor.
Good work on that. Itīll do 