Grizzly G7945 - Calibrating Depth Stop; Tensioning Spindle Return Spring

Model G7945/G7946 (Mfd. Since 09/17)
-37-
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 return height nut and calibration
nut shown in Figure 44.
Calibrating Depth
Stop
2. Use the calibration nut to zero the depth stop
scale with the stop bracket.
3. Hold the depth stop at zero, and tighten the
return height 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.
Figure 45. Feed shaft return spring assembly.
Figure 44. Depth stop assembly.
Return
Height
Nut
Stop
Bracket
Calibration
Nut
Spring Cover
Lock Slot
Jam Nut and
Cover Nut
Spring Lock
Cover
Tensioning Spindle
Return Spring
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.
Wear safety glasses when
adjusting springs. Serious
injury may occur if this
warning is ignored!
To adjust the feed shaft 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 45).
Items Needed Qty
Heavy Leather Gloves ................................1 Pair
Shop Rags ......................................... As Needed
Open-End Wrench 24mm .................................. 1