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Model G9986 8" Drill Press
Figure 15. Loosening lock knob.
The belt must be moved to change speeds. A
chart under the belt cover shows the belt position
needed for a given speed.
To change speeds
:
1. UNPLUG THE DRILL PRESS!
2. Loosen the lock knob (shown in Figure 15)
to take tension off of the V-belt
.
Changing Speeds
3. Find your desired speed on the speed chart
(Figure 16) and move the V-belt to the indi-
cated position in the pulley grooves.
4. Pull the motor backwards to tighten the V-
belt, then tighten the belt tension lock knob
and close the belt cover.
Figure 16. Speed chart.
Figure 17. Depth stop components.
Depth Nut
Jam Nut
Depth
Stop Stud
The Model G9986 has a depth stop that allows
you to drill repeated non-through holes to the
same depth every time.
The depth stop features two hex nuts that can be
adjusted to limit spindle travel.
The upper hex nut (jam nut) tightens against the
depth nut so it doesn't move during repeated
operations.
Figure 17 shows the various components of the
depth stop.
Depth Stop
To set the depth stop:
1. Lower the drill bit to the required height.
2. Thread the depth nut down against the stop
bracket.
3. Lower the jam nut against the depth nut.
4. Using wrenches, hold the depth nut in place
and tighten the jam nut against the depth
nut.
Stop
Bracket