15
3
/
8
" Drill - Owner's Manual
DRILLING – cont’d
REMOVING THE CHUCK
To remove the chuck:
1.
Remove the drill plug from the power
source.
2. Insert a
5
/
16
” (8 mm) or larger hex key
(1) into the chuck (2) and tighten the
chuck jaws securely (Fig. 7). Make sure
each of the chuck jaws (3) is seated on
the flat surfaces of the hex key.
3. Tap the hex key sharply with a mallet
(4) in a clockwise direction. This
action will loosen the screw in the
chuck for easy removal.
4. Open chuck jaws and remove the hex key.
5. Open the chuck jaws as far as possible.
6.
Remove the chuck screw using a #2
screwdriver (Fig. 8).
NOTE:
Turn
the screw CLOCKWISE to remove it.
This screw has a left-handed thread.
7.
Insert the hex key into the chuck and
tighten jaws of chuck securely (Fig.
9). Tap the hex key sharply with a
mallet in a COUNTER-CLOCKWISE
direction. This will loosen the chuck
on the spindle. The chuck can now
be unscrewed and removed from the
spindle by hand.
ASSEMBLY AND OPERATING
(continued)
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Summary of Contents for 1240-055
Page 19: ...18 1240 055 EXPLODED VIEW ...
