Yep... working on that
I've already gone through the control tower and greased the sensing arm and linkages for the on-off switch. You can see a few shots (1042-1044) from when I started cleaning the control switch "plates"- they return to a light ivory white, and were nearly brown at first.
Someone did maintenance on it not too long ago. Many parts are still well-lubed and working smoothly (or the old grease hasn't dried out).
Next chance I get I'm going to pop off the motor and check that the bearings are still well oiled- if so, then I should be able to hook it up to something and get a signal (well, if the cart is still good). I also need to lube the speed selector mechanism; it feels a little chunky. The table itself glides smoothly, and I Li-greased up the changer gear under it to keep it quiet.