Radial Alignment - Remove cover center of turret. Remove 2 taper pins with slide hammer. Loosen bolts for curvic coupling. Run indicator on OD tool slot parallel to x axis.
Run X up and down and move turret accordingly for 0 reading. If turret "clunks when indexing (ie not going into curvic cou[ling properly) Yama Seiki in CA. has step by step procedure to re-zero turret servo. Very easy to follow.
Axial - run indicator on boring holder servace parallel to Z axis. If need loosen 4 or 6 bolts holding turret Assy to X axis slide. Adjust turret assy to be parallel with Z axis. I believe there is a jacking block on the tailstock which can be removed and placed on turret for use aligning turret.