Installing/Removing Drill Bits; Using Led Worklight; Adjusting Depth Stop - Grizzly T31739 Owner's Manual

Installing/Removing
Drill Bits
Any drill bit you install in the chuck must be
tight enough that it will not come loose during
operation. With a keyless chuck like the one that
comes on the T31739, no chuck key is necessary
for tightening or loosening.
Installing a Drill Bit
1. DISCONNECT MACHINE FROM POWER!
2. Turn drill chuck counterclockwise on arbor to
open jaws enough to accept shank of drill bit.
3. Insert drill bit as far as possible into chuck
WITHOUT allowing chuck jaws to touch
fluted portion of bit, and hand-tighten chuck
clockwise as tightly as you can.
Note: Make sure small bits are not trapped
between edges of two jaws; if they are, rein-
stall drill bit or it will not be secure enough to
use for drilling.
Removing a Drill Bit
1. DISCONNECT MACHINE FROM POWER!
2. Turn chuck counterclockwise to open jaws
and catch drill bit with a rag to protect hands.

Using LED Worklight

Use light switch on front of headstock to turn on
LED worklight. Worklight can be repositioned as
necessary by pivoting it forward or backward.
Worklight
Figure 28. Location of LED worklight.
-24-

Adjusting Depth Stop

The Model T31739 has a depth stop that allows
you to drill repeat non-through holes to the same
depth every time.
The depth stop consists of a stud attached to the
quill with a depth nut that can be lowered or raised
against a stop bracket to control drilling depth.
Figure 29 shows the various components of the
depth stop.
Depth
Stop Stud
Depth
Nut
Figure 29. Depth stop components.
To adjust depth stop:
1.
Lower drill bit to required height.
2.
Thread depth nut down against stop bracket.
Note: The scale on the depth stop can be
recalibrated if it gets moved or has changed
from factory setting. Refer to Calibrating
Depth Stop on Page 32 for instructions on
how this is done.
Model T31739 (Mfd. Since 11/19)
Stop Bracket