Using the two screws that you removed to
free the X axis lead screw nut from the Y
axis cross slide base, re-insert them
through the ball nut mount and into the Y
axis cross slide base. Note the orientation
of the nut…the recirculation tubes are on
the bottom side of the nut. This must be
oriented this way to allow clearance
through the table. Do not tighten
completely, only snug. They will be
tightened later.