Craftsman 315.269290 Operator's Manual page 17

CHUCK REMOVAL
See Figures 20,21, and22.
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. GeeF/gufe 13.
• Insert a 5/16 inch or larger hex key into the chuck of
your drill and tighten the chuck jaws securely.
• Tap the hex key sharply with a mallet in a clockwise
direction. See Fioure 20. This will loosen the screw in
the chuck for easy removal.
MALLET
CHUCKJAWS
KEYLESS
HEX KEY CHUCK
Fig. 20
Open chuck jaws and remove hex key. Remove the
chuck screw by turning it in a clockwise direction.
Gee Figure21,
Note: The screw has left hand threads.
SCREWDRIVER
Fig. 21
Insert hex key in chuck and tighten chuck jaws
securely. Tap sharply with a mallet in a counterclock-
wise direction. This will loosen chuck on the spindle. It
can now be unscrewed by hand. Gee Figure 22.
MALLET
Fig. 22
TO RETIGHTEN A LOOSE CHUCK
Periodically check chuck screw for tightness. A loose
chuck screw may cause 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. SeeF@ure 13.
• Open the chuck jaws.
• Insert hex key into chuck and tighten chuck jaws
securely. Tap hex key sharply with a mallet in a
clockwise direction. This will tighten chuck on the
spindle.
• Open the chuck jaws and remove hex key.
• Tighten the chuck screw.
Note: The chuck screw has left hand threads.
17