14 15
MAINTENANCE
CHUCK REMOVAL
See Figures 8 - 9.
The chuck may be removed and replaced with a new one.
n Unplug the drill.
n Insert a 5/16 in. or larger hex key into the chuck of the
drill and tighten the chuck jaws securely.
n Tap sharply with a mallet in a counterclockwise direction.
This will loosen the chuck on the spindle. It can now be
unscrewed by hand.
n Open the chuck jaws and remove the hex key.
TO RETIGHTEN A LOOSE CHUCK
The chuck may become loose on the spindle and develop
a wobble. To tighten:
n Unplug the drill.
n Open the chuck jaws.
n Insert a hex key into the chuck and tighten chuck jaws se-
curely. Tap the hex key sharply with a mallet in a clockwise
direction. This will tighten the chuck on the spindle.
n Open the chuck jaws and remove the hex key.
Fig. 8
Fig. 9
HEX KEY
MALLET
CHUCK
JAWS
MALLET
KEYLESS
CHUCK
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