Craftsman 973.274960, Owner'S Manual

12

CHUCK REMOVAL

See Figures 13, 14, and 15.

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 allen wrench (hex key
wrench) into the chuck of your drill and tighten the
chuck jaws securely.

■

Tap the allen wrench sharply with a mallet in a
clockwise direction. See

 Figure 13. This will

loosen the screw in the chuck for easy removal.

■

Insert allen 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 15.

OPERATION

ALLEN WRENCH

MALLET

Fig. 13

■

Open chuck jaws and remove allen wrench.
Remove the chuck screw by turning it in a clock-
wise direction. 

See Figure 14. Note: The screw

has left hand threads.

Fig. 14

Fig. 15

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 allen wrench into chuck and tighten chuck
jaws securely. Tap allen wrench sharply with a
mallet in a clockwise direction. This will tighten
chuck on the spindle.

■

Open the chuck jaws and remove allen wrench.

■

Tighten the chuck screw. Note: The chuck screw
has left hand threads.

CHUCK

JAWS

KEYLESS

CHUCK