FP1 saddle removal

I need to remove the Splineshaft and possibly the Elevating screw on my FP1 in order to change a broken shaft in the table feed gearbox. I suppose I need to remove the saddle in order to remove these 2 components?

I removed the Ram and then operated the crank to elevate the saddle to its upper most position. Is the saddle supposed to then just lift off the column? I can't seem to budge the saddle....any advice?

Thanks!