There is no alignment procedure, there is a tool change offset and grid offset to line the gears up so the turret can clamp properly. Was this machine involved in a crash that you suspect that the turret is off center? To properly align the turret on the ST lathes is by making sure the wedge,turret box,spindle head stock are all square.. then you move the spindle head stock or wedge to bring the tool on centerline. Unfortunately it's not like the SL's where you can adjust the turret radially on the couplings. The ST couplings are actually machined into the casting so they aren't adjustable.