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16
MAINTENANCE
CHUCK REMOVAL
See Figures 14 - 16.
The chuck may be removed and replaced with a new one.
Unplug the drill.
Open chuck jaws using the provided chuck key.
Insert a 5/16 inch (8 mm) or larger hex key into the chuck
of the drill and tighten the chuck jaws securely.
Tap the hex key sharply with a mallet in a clockwise
direction. This will loosen the screw in the chuck for easy
removal.
Open chuck jaws and remove hex key. Remove the chuck
screw by turning it in a clockwise direction.
NOTE: The screw has left hand threads.
Insert the hex key into the chuck and tighten the
chuck jaws securely. Tap sharply with a mallet in a
counterclockwise direction. This will loosen the chuck
on the spindle. It can now be unscrewed by hand.
TO RETIGHTEN A LOOSE CHUCK
The chuck may become loose on the spindle and develop
a wobble. Also, the chuck screw may become loose, caus-
ing the chuck jaws to bind and prevent them from closing.
To tighten:
Unplug the drill.
Open the chuck jaws.
Insert the hex key into the chuck and tighten the chuck
jaws securely. Tap the hex key sharply with a mallet in
a clockwise direction. This will tighten the chuck on the
spindle.
Open the chuck jaws and remove the hex key.
Tighten the chuck screw.
Fig. 14
Fig. 15
Fig. 16
HEX KEY
CHUCK
MALLET
CHUCK
JAWS
MALLET
HEX KEY
SCREWDRIVER