Harrison vertical milling attachment, how to strip?

[hermetic]

Hi all, I have a Harrison H mill, and some time ago, got a vertical milling attachment for it. Although the thing is externally rough, internally it is pristine...............but I want to strip it for two reasons, firstly because I want to do a proper job of refinishing it, because at the moment it is just plain ugly, and more importantly, because the gear on the vertical shaft has quite a lot of backlash on the shaft, and I suspect a badly fitting or partially sheared key. Also got to fit a new oil sight glass. I have stripped most of it, but now am at the point of removing the 30int vertical shaft from the casting. It is tight as you would expect, but I would like advice from anyone who has ever done this, just to make sure I am doing it right. I have removed the top and bottom chrome covers, removed the preload adjuster nut from the top bearing, and my guess is that the whole assembly will now press out of the bottom, for which I will be using threaded rod and spacers Any advice gratefully received!

Phil