Grizzly G0720R, Owner'S Manual

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Model G0720R (Mfg. Since 11/10)
Drill Chuck
Installation &
Removal
4. Using the drawbar hex wrench, loosen the
drawbar two turns. DO NOT remove the
drawbar.
Figure 16. Spindle lock pin holding spindle.
Spindle
Lock
Pin
Removal
1. DISCONNECT MILL FROM POWER!
2. Lock the quill in place with the quill lock.
3. Insert the spindle lock pin into the hole in the
side of the spindle (see
Figure 16).
Installation
1. DISCONNECT MILL FROM POWER!
2. Insert the chuck arbor into the spindle so
it engages the alignment pin inside of the
spindle and makes contact with the drawbar
threads.
3. Thread the drawbar into the arbor until the
arbor is seated up into the spindle taper.
4. While supporting the chuck and arbor with
one hand, snug the drawbar with the drawbar
hex wrench.
Note: Do not overtighten the drawbar.
Overtightening makes arbor removal difficult
and will damage the arbor and threads.
The chuck is attached to an R-8 arbor using a B18
taper. This attachment is considered to be semi-
permanent. There should be no need to separate
the chuck from the arbor.
5. Put on safety goggles and tap the top of the
drawbar wrench with the hammer. This will
unseat the taper of the arbor from the spindle
(see
Figure 17).
Figure 17. Drawbar wrench.
6. Hold one hand under the chuck and finish
loosening the drawbar by hand until it falls out
of the spindle.
Tap on Drawbar
Wrench Here
NOTICE
DO NOT completely unscrew the drawbar
before tapping it with the hammer in the
next Step. You will damage the threads on
the drawbar and the arbor.