Ryobi HD501 - Manual (Page 11)

Page 11
OPERATION
WARNING:
Your hammer drill should never be connected to power
supply when you are assembling parts, making
adjustments, installing or removing drill bits, or when not
in use. Disconnecting your drill will prevent accidental
starting that could cause serious injury.
TO INSTALL BITS
See Figure 8.
■ UNPLUG YOUR HAMMER DRILL.
WARNING:
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 9. This could cause drill bit to be thrown from your drill
resulting in possible serious personal injury or damage to your
chuck.
■ Tighten the chuck jaws securely on drill bit, using only 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 the chuck jaws using only 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 to storage area.
RIGHT
CHUCK JAWS
DRILL BIT
WRONG
Fig. 8
Fig. 9