I ran the machine for a bit to get familiar with it, I then tightened up the saddle, the cross slide and the compound, adjusted the spindle bearings, isolated the motor mounts and checked the bed to spindle alignment, of course aligned the tailstock as well, also changed out the gear box oil/saddle oil and have always kept the machine lubed and clean...also put an ER40 chuck plate on it which has been a dream for repeatability......I also made a out board spider for the spindle bore...