Grizzly G9969 - Manual (Page 23)

G9969 Radial Drill Press
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The arbor can be removed to install other Morse
taper tooling in the spindle. A drift key is included
to help remove the arbor or other tooling from
the spindle. Usually, once the chuck and arbor
have been properly mounted together, they
are considered semi-permanent connections.
(If you would like to install a different chuck,
we recommend obtaining a new arbor for that
chuck.)
To remove the drill chuck and arbor:
1. UNPLUG THE DRILL PRESS!
2. Rotate the downfeed handles until the drift
key slot is exposed in the side of the quill.
3. Tighten the return height nut, shown on Page
25, up against the depth stop bracket. This
will prevent the quill from retracting when you
release the downfeed handles.
Arbor Removal
5. Insert the drift key into the drift key slot, and
allow the quill to rise and trap the drift key by
backing off the downfeed handles slightly.
6. Hold the drill chuck with one hand and tap on
the drift key with a rubber or wooden mallet
(
Figure 18) until the arbor releases.
7. While holding onto a downfeed handle,
loosen the return height nut so that the quill
can retract completely.
8. Carefully retract the quill into the headstock.
Figure 18. Using drift key to remove arbor.
Both Slots
Aligned
4. Once you are sure the bit is installed cor-
rectly, tighten the chuck as tight as possible
with the chuck key.
5. Remove the chuck key from the chuck.
To remove a drill bit:
1. UNPLUG THE DRILL PRESS!
2. While wearing heavy leather gloves, hold the
drill bit in one hand, and by using the chuck
key, loosen the chuck with the other hand.
3. Once the drill chuck is loose enough, remove
the drill bit from the chuck.
4. Remove the chuck key from the chuck.
4. Rotate the spindle until the inner drift key slot
is aligned with the outer slot, as shown in
Figure 18. You will see through the spindle
when the slot is properly aligned.