Removing the headstock of a Hercus AR

Hi all, I have just purchased another Hercus lathe, a HercusAR this time, the only thing I can see is the Vee belt that goes around thecounter shaft and the spindle is broken, I have removed the headstock spindle on a Hercus that do not have roller bearings, it was fairly straight forward but havingnever touched an AR, I was wondering is there anything I need to know before Iattempt it. I'm sure you guys are much smarter them me and I don't want to ruinthings before I start. Any advice would be very welcomed.

thanks
Stephen