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16
MAINTENANCE
CHUCK REMOVAL
See Figures 11 - 13.
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 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 with a screwdriver 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 de-
velop a wobble. Also, the chuck screw may become loose,
causing 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 with a screwdriver.
Fig. 11
Fig. 12
Fig. 13
HEX KEY
CHUCK
MALLET
CHUCK
JAWS
MALLET
HEX KEY
SCREWDRIVER