Ryobi P423, Operator'S Manual

Page: 5 / 36

5 — English
CUT-OFF TOOL/GRINDER SAFETY WARNINGS

Always use undamaged wheel flanges that are of
correct size and shape for your selected wheel.
Proper wheel flanges support the wheel thus reducing the
possibility of wheel breakage. Flanges for cut-off wheels
may be different from grinding wheel flanges.

Do not use worn down wheels from larger power tools.
Wheel intended for larger power tool is not suitable for
the higher speed of a smaller tool and may burst.
ADDITIONAL SAFETY WARNINGS SPECIFIC
FOR ABRASIVE CUTTING-OFF OPERATIONS

Do not “jam” the cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive depth
of cut.
Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the cut
and the possibility of kickback or wheel breakage.

Do not position your body in line with and behind the
rotating wheel.
When the wheel, at the point of operation,
is moving away from your body, the possible kickback
may propel the spinning wheel and the power tool directly
at you.

When wheel is binding or when interrupting a cut
for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes to
a complete stop. Never attempt to remove the cut-
off wheel from the cut while the wheel is in motion
otherwise kickback may occur.
Investigate and take
corrective action to eliminate the cause of wheel binding.

Do not restart the cutting operation in the workpiece.
Let the wheel reach full speed and carefully reenter
the cut.
The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.

Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the
line of cut and near the edge of the workpiece on both
sides of the wheel.

Use extra caution when making a “pocket cut” into
existing walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects
that can cause kickback.
CALIFORNIA PROPOSITION 65
WARNING:
This product and some dust created by power sanding, sawing, grinding, drilling, and other construction activities may
contain chemicals, including lead, known to the State of California to cause cancer, birth defects, or other reproductive
harm.
Wash hands after handling.
Some examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products and,
• arsenic and chromium from chemically treated lumber.
Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your
exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially
designed to filter out microscopic particles.