16
1240-055
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 prevent 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. 10).
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 the screw COUNTER-
CLOCKWISE to tighten it. This screw
has a left-handed thread.
ASSEMBLY AND OPERATING
(continued)
Fig. 10
Summary of Contents for 1240-055
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