Calibrating Depth Stop; Tensioning Spindle Return Spring - Grizzly G7944 Owner's Manual

Calibrating Depth
Stop
The drill press comes fitted with a depth stop
to use when drilling multiple holes at the same
depth. The scale on this depth stop can be
calibrated if it ever becomes incorrect.
To calibrate the depth stop:
1. Loosen the jam nut and calibration nut shown
in Figure 43.
Depth
Stop
Flange
Calibration
Nut
Figure 43. Depth stop assembly.
2. Use the calibration nut to zero the depth stop
scale with the depth stop flange.
3. Hold the depth stop at zero, and tighten the
jam nut to hold the depth stop in position.
4. Test the depth stop by measuring how far the
spindle actually moves with respect to where
you set the depth stop.
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Tensioning Spindle
The tension of the spindle return spring makes the
spindle automatically return to the top (starting)
position when the downfeed handle is released.
This spring is pre-adjusted at the factory, and
typically will never need further adjustment during
the life of the drill press. However, additional
tension can be applied if the spindle stops
automatically returning to the top position.
Items Needed
Heavy Leather Gloves ...................................1 Pr
Shop Rags ......................................... As Needed
Open-End Wrench 24mm .................................. 1
Jam Nut
To adjust spindle return spring tension:
1. DISCONNECT MACHINE FROM POWER!
2. Wipe off any oil on the spring lock cover so it
does not slip in your fingers when you hold the
cover from spinning (see Figure 44).
Spring Lock
Cover
Figure 44. Spindle return spring assembly.
Return Spring
Wear safety glasses when
adjusting springs. Serious
injury may occur if this
warning is ignored!
Model G7943/G7944 (Mfd. Since 09/17)
Qty
Spring Cover
Locking Lug
Jam Nut and
Cover Nut