Hey Chris, congrats on the new toy. I'm sure you'll get plenty of good advice from the very experienced people here. Since I'm getting started playing with my Clausing 4902 I have to say my two bits (literally).
If you don't already have the manual, get it from Clausing first. They are really helpful if you ask. First page of the manual talks about moving the machine and warns you not to slide it on the floor. I don't know if you were being literal there, but it can't hurt to mention it. The rubber pads on the levelers could get damaged by trying to slide it.
About the leadscrew: if your 5x is like my 4x the screw is connected to the output shaft of the QCGB with a fail-safe brass shear pin. This will shear off in case of overload and save the gearbox and leadscrew. If somebody did this, got PO'ed , and replaced it with a roll pin, then they have defeated the whole purpose of the design. Lathe equivalent of the penny in the fuse box. The manual clearly explains proper procedure for removal of the leadscrew. You can search the forums for discussion of shear pins.
Good luck!
Tim
Thank you Tim. Yes I already got a manual off of Clausing. They actually emailed me one lol. And yes I did slide the lathe. I dont have the leveling feet on it, so no worries there lol Thank you for the brass fail pin. The roll pin is kinda out of it. But looking at my manual, it just says roll pin in there....Hmm....
Thanks,
Chris