Craftsman 973.111490 - Manual (Page 11)

OPERATION
DRILLING
See Figure 11.
Fig. 11
When drilling hard smooth surfaces use a center punch
to mark desired hole location. This will prevent the drill
bit from slipping off center as the hole is started. How­
ever, the low speed feature allows starting holes without
center punching if desired. To accomplish this, simply
operate your drill at a low speed until the hole is started.
The material to be drilled should be secured in a vise or
with clamps to keep it from turning as the drill bit rotates.
Hold tool firmly and place the bit at the point to be drilled.
Depress the switch trigger to start tool.
Move the drill bit into the workpiece applying only
enough pressure to keep the bit cutting. Do not force or
apply side pressure to elongate a hole.
A WARNING: Be prepared for binding or bit
““ breakthrough. When these situations occur, drill
has a tendency to grab and kick opposite to the
direction of rotation and could cause loss of
control when breaking through material. If not
prepared, this loss of control can result in
possible serious injury.
When drilling metals, use a light oil on the drill bit to
keep it from overheating. The oil will prolong the life of
the bit and increase the drilling action.
If the bit jams in workpiece or if the drill stalls, release
switch trigger immediately. Remove the bit from the
workpiece and determine the reason for jamming.
OVERLOAD
Your drill has a built-in overload protector to protect
the motor during overloading or prolonged use. The
overload protector automatically activates to break the
circuit. When this occurs, allow your drill to cool a few
seconds before resuming operation.
CHUCK REMOVAL
See Figures 12, 13, and 14.
The chuck must be removed in order to use some
accessories. To remove:
■ Lock switch trigger on your drill by placing the
direction of rotation selector in center position.
See Figure 2.
■ 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 13. This will
loosen the screw in the chuck for easy removal.
KEYLESS
CHUCK
CHUCK
JAWS
HEX KEY
WRENCH Fig. 12
Open chuck jaws and remove hex key wrench.
Remove the chuck screw by turning it in a clock­
wise direction. See Figure 13. Note: The screw
has left hand threads.
Fig. 13
11