Craftsman 315.101390 Owner's Manual page 9

OPERATION
TO INSTALL BITS
See Figure 9.
• UNPLUG YOUR HAMMER DRILL.
Failure to unplug your hammer drill could result in
accidental starting causing serious injury.
• Open or close the chuck jaws to a point where the
opening is slightly larger than the drill bit you intend to
use. Also, raise the front of your drill slightly to keep the
drill bits from falling out of the chuck jaws.
• Insert drill bit into chuck the full length of the jaws.
WARNING:
Do not insert drill bit into chuck jaws and tighten as shown
in figure 10. This could cause drill bit to be thrown from
your drill resulting in possible serious personal injury or
damage to your chuck.
• Tighten chuck jaws'securely, using the chuck key
provided. DO NOT USE A WRENCH TO TIGHTEN
OR LOOSEN THE CHUCK JAWS.
• Remove chuck key and return to storage area.
TO REMOVE BITS
• UNPLUG YOUR HAMMER DRILL.
WARNING: ]
Failure to unplug your hammer drill could result in
accidental starting causing serious injury.
• Loosen chuck jaws using the chuck key provided.
DO NOT USE A WRENCH TO TIGHTEN OR
LOOSEN THE CHUCK JAWS.
• Remove drill bit from chuck jaws.
• Remove chuck key and return it to storage area.
DRILL
BIT
CHUCK
\
CHUCK
JAWS
RIGHT
Fig. 9
Page 9