Craftsman 973.110770 - Manual (Page 12)

OPERATION
CHUCK REMOVAL
See Figures 11, 12, and 13.
The chuck must be removed in order to use some
accessories. To remove:
■ Lock the switch trigger by placing the direction of
rotation selector in center position.
■ Insert a 5/16 inch or larger alien wrench (hex key
wrench) into the chuck of your drill and tighten the
chuck jaws securely.
■ Tap the alien wrench sharply with a mallet in a
clockwise direction. See Figure 11. This will
loosen the screw in the chuck for easy removal.
MALLET
KEYLESS CHUCK
CHUCK JAWS
ALLEN
WRENCH
^ Fig. 11
Open chuck jaws and remove alien wrench.
Remove the chuck screw by turning it in a clock­
wise direction. See Figure 12. Note: The screw
has left hand threads.
Insert alien wrench in chuck and tighten chuck
jaws securely. Tap sharply with a mallet in a
counterclockwise direction. This will loosen chuck
on the spindle. It can now be unscrewed by hand.
See Figure 13.
Fig. 13
TO RETIGHTEN A LOOSE CHUCK
The chuck may become loose on 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, follow these steps:
■ Lock the switch trigger by placing the direction of
rotation selector in center position.
■ Insert alien wrench into chuck and tighten chuck
jaws securely. Tap alien wrench sharply with a
mallet in a clockwise direction. This will tighten
chuck on the spindle.
■ Open the chuck jaws and remove alien wrench.
■ Tighten the chuck screw. Note: The chuck screw
has left hand threads.
Fig. 12
12