Ryobi PSBRH01 Operator's Manual page 7

MODE SELECTOR
See Figure 8, page 11.
The mode selector gives the operator two options.
Rotary Hammer Mode
Hammering action plus drill bit rotation.
Use for hammer drilling.
Rotational Drilling Mode
Drill bit rotation only; no hammering ac-
tion. Use for drilling applications.
NOTE: If the product has not been operated recently, the
mode selector may be difficult to turn. If you cannot change
modes, turn the tool on and allow it to run for a few seconds.
This should free the gears and allow you to change modes
normally.
DRILLING
 Check the direction of rotation selector for the correct
setting (forward or reverse).
 Secure the workpiece in a vise or with clamps to keep it
from turning as the bit rotates.
 Hold the tool firmly and place the bit at the starting point
of the workpiece.
WARNING:
Do not drive a screw where there is likely to be hidden
wiring behind the surface. Contact with a "live" wire will
make exposed metal parts of the tool "live" and possibly
shock the operator. If you must drive a screw where hid-
den wire may be present, always hold tool by insulated
gripping surfaces (handle) when performing the operation
to prevent a shock to the operator.
 Depress the switch trigger to start the tool.
 Move the bit into the workpiece, applying only enough
pressure to keep the bit cutting. Do not force the tool or
apply side pressure to elongate a hole. Let the tool do
the work.
OPERATION
WARNING:
Be prepared for binding at bit breakthrough. When
these situations occur, the tool 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 hard, smooth surfaces, use a center punch
to mark the desired hole location. This will prevent the bit
from slipping off-center as the hole is started.
 If the bit jams in the workpiece or if the tool stalls, stop
the tool immediately. Remove the bit from the workpiece
and determine the reason for jamming.
NOTE: This tool has an electric brake. When the switch trig-
ger is released, the chuck stops turning. When the brake is
functioning properly, sparks will be visible through the vent
slots on the housing. This is normal and is the action of the
brake.
NOTICE:
During extended periods of use, it is possible that lubri-
cation may leak from the gearbox. This is a normal oc-
currence and does not indicate a problem with the tool.
Avoid placing the tool on an unprotected surface to avoid
possible property damage.
MASONRY DRILLING
See Figure 9, page 11.
For maximum performance, use carbide-tipped masonry
impact bits or designated hammer drill bits when drilling
holes in brick, tile, concrete, etc.
 Select Rotary Hammer Mode.
 Apply light pressure at medium speed for best results in
brick.
 Apply additional pressure for hard materials such as
concrete.
 When drilling holes in tile, practice on a scrap piece to
determine the best speed and pressure. Begin drilling at
a very low speed to prevent the bit from slipping off the
starting point.
7 — English