I'll warn you: I bought an Enco turret mill just like the pictured one,in apparently GREAT condition. Perfect paint,table bright. This was about 12 years ago,when my wife moved her jewelry business to a different location. I thought I'd buy a few machines to keep there.
Well,the table feed screw on the long axis(X axis),kept jumping the nut it ran in. So did the crossfeed screw. I took the table off,and found that they had only tapped the nuts about 15 THOUSANDTHS DEEP!!! Enco offered no new replacement parts. It looked just like a Grizzly,so I wasted about $45.00 ordering a couple of new nuts. They would not fit at all. The exceedingly shallow threaded nuts were TYPICAL Asian CRAP. And,this WAS a Taiwan mill!!! They were DEFINITELY NOT worn shallow. They were made that way,and the internal threads were quite crisp and new looking.
Since the screws were metric,the dials had an annoying extra several thousandths on them PER TURN. I had not noticed this when I bought the machine. This would be a PITA to move the table accurately for several inches,with uneven dial graduations. So I ordered some high quality IMPERIAL acme threaded screws from MSC,and was planning to make nuts to fit them and re cut the dials to be .200" in one turn,like my Bridgeport clone. My wife then decided the building cost too much to rent,so I had no use for the mill and sold it.
So,if your table is off anyway,look into the interior of the holes in the brass nuts and make sure they are decently threaded!!!!! Also make sure the dials come out EVEN,and DON'T have extra left over grads at the end of a full turn. The table may be off the machine because it is jumping the nuts.