Craftsman 315.271350 - Manual (Page 12)

OPERATION
CHUCK REMOVAL
See Figures 14, 15, and 16.
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 hex key wrench into the
chuck of your drill and tighten the chuck jaws
securely.
■ Tap the hex key wrench sharply with a mallet in a
clockwise direction. See Figure 14. This will
loosen the screw in the chuck for easy removal.
MALLET
KEYLESS CHUCK
CHUCK JAWS
HEX KEY
WRENCH
Fig. 14
Open chuck jaws and remove wrench. Remove
the chuck screw by turning it in a clockwise
direction. See Figure 15.
Note: The screw has left
hand threads.
Insert hex key 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 16.
Fig. 16
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 hex key wrench into chuck and tighten
chuck jaws securely. Tap hex key wrench sharply
with a mallet in a clockwise direction. This will
tighten chuck on the spindle.
■ Open the chuck jaws and remove wrench.
■ Tighten the chuck screw. Note: The chuck screw
has left hand threads.
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