Grizzly G9969 - Manual (Page 27)

G9969 Radial Drill Press
-25-
Depth Stop
Figure 23. Depth stop components.
Calibration
Nut
Depth Stop
Bracket
Depth Nut
Jam Nut
Return
Height Nut
The Model G9969 has a depth stop that allows
you to drill repeated non-through holes to the
same depth every time.
The depth stop consists of a stud attached to the
quill, with two hex nuts that can be lowered or
raised on the stud so the lower nut (depth nut)
hits a stop bracket when the drill bit is lowered.
The upper hex nut (jam nut) is then used to
tighten against the depth nut to secure it in place
so the depth nut doesn't move with repeated
operations. The depth stop also features a return
height hex nut that is used to set the minimum
spindle return distance.
Figure 23 shows the
various components of the 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. Hold the depth nut in place and tighten the
jam nut against the depth nut.
Note: The scale on the depth stop can be recali-
brated if it gets moved or has changed since the
factory setting. Refer to
Calibrating Depth Stop
on Page 31 for instructions on how this is done.
To set the spindle return distance:
1. Lower the drill bit.
2. Thread the return height nut up the stud to
the desired height.