Chuck Removal, To Retighten a Loose Chuck

CHUCK REMOVAL

	The chuck may be removed and replaced by a new one.
	n Lock the switch trigger by placing the direction of rotation
	selector in center position.
	n Insert a 5/16 in. or larger hex key into the chuck of the	CHUCK
	drill and tighten the chuck jaws securely.	CHUCK
	drill and tighten the chuck jaws securely.	JAWS
	n Tap the hex key sharply with a mallet in a clockwise di-
	rection. This will loosen the screw in the chuck for easy
	removal.
	n Open the chuck jaws and remove the hex key. Using a
	screwdriver, remove the chuck screw by turning it in a
	clockwise direction.
	NOTE: The chuck screw has left hand threads.
	n Insert the hex key into the chuck and tighten the chuck
	jaws securely. Tap sharply with a mallet in a counterclock-
	wise direction. This will loosen the chuck on the spindle.	HEX KEY
	It can now be unscrewed by hand.
	TO RETIGHTEN A LOOSE CHUCK
	The chuck may become loose on the spindle and develop
	a wobble. Also, the chuck screw may become loose, caus-
	ing the chuck jaws to bind and prevent them from closing.
	To tighten:

nLock the switch trigger by placing the direction of rotation

selector in the center position.	SCREWDRIVER
n Open the chuck jaws.
n 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.
n Open the chuck jaws and remove the hex key.
n Tighten the chuck screw.

Fig. 15

Fig. 16

MALLET

Fig. 17