I have a 760-22 that has a tight x axis Probably a year maybe more ago Machinetek had posted about shimming the plates that go under the ways I did this and the machine ran great until a month ago I found the oil line to the ball screw broken and replaced it The mill ran good for about 2 weeks but the ballscrew is tight again I have also cleaned and regreased the thrust bearings on each end of the screw They looked to be in good condition
The ball screw looks smooth and shiney I guess I'm to the end of my knowledge which isn't all that far Any help would be appreciated