REMOVING THE CHUCK – cont’d
NOTE: Turn the screw CLOCKWISE to
remove it. This screw has a left-handed
thread.
7. Insert the hex key into the chuck and
tighten jaws of chuck securely
(Fig. 20). Tap the hex key sharply with
a mallet in a COUNTER-CLOCKWISE
direction. This will loosen the chuck on
the spindle. The chuck can now be
unscrewed and removed from the
spindle by hand.
RETIGHTENING A LOOSE CHUCK
After installing a chuck that has previously
been removed, the chuck may become
loose on the spindle and develop a
wobble. Also, the chuck screw may
become loose, causing the chuck jaws to
bind and preventing them from closing. To
tighten the chuck, follow these steps:
1. Insert the hex key into the chuck and
tighten the chuck securely.
2. Tap the hex key sharply with a mallet
in a CLOCKWISE direction (Fig. 21).
This will tighten the chuck on the
spindle.
3. Open the chuck jaws and remove the
hex key.
4. Tighten the chuck screw using a #2
screwdriver.
NOTE: Turn screw COUNTER-
CLOCKWISE to tighten it. This screw has
a left-handed thread.
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