Model G7947/G7948 (Mfd. Since 01/21)
-41-
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 52.
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.
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 53).
Figure 52. Depth stop assembly.
Jam Nut
Calibration
Nut
Depth
Stop
Flange
Figure 53. Feed shaft return spring assembly.
Spring Lock
Cover
Jam Nut and
Cover Nut
Spring Cover
Locking Lug
Items Needed Qty
Heavy Leather Gloves ...................................1 Pr
Shop Rags
......................................... As Needed
Open-End Wrench 24mm
.................................. 1
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