Darex XT-3000A - Manual (Page 79)

77
CALIBRATING DRILL STICK OUT - FINAL
GRIND :
The swing cam on the chuck rests and rides
on the Swing Bearing assembly. This bearing
assembly is eccentric. The Auto Sharpening
Fixture will arrive with this bearing positioned
so that the drill will NOT make contact with
the grinding wheel. By repositioning the bear-
ing, the amount of material removed from the
end of the drill will change, changing the Final
Grind - Drill Stick Out amount.
1. Using a 3mm hex
wrench, loosen the
Swing Bearing As-
sembly, located on
the back of the Pivot
Base Casting.
2. To increase the amount of material re-
moved from the end
of the drill and re-
duce the Drill Stick
Out amount, slightly
rotate the bearing
clockwise.
3. After reposition-
ing the bearing, be
sure to retighten the assembly bolt, securing
the new position of the Swing Bearing Assem-
bly.
4. Sharpen the drill and verify the amount of
Final Grind - Drill Stick Out.
Repeat this procedure until the Final Grind -
Drill Stick Out amount measures the same as
produced with the Manual system.
Once the Final Grind - Drill Stick Out has been
calibrated, it will not be necessary to make
this adjustment again.
Auto Sharpening Fixture