with arbor holes that do not match the mounting
hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
Do not use a damaged accessory. Before
each use, inspect the accessory such as
abrasive wheels for chips and cracks, backing
pads for cracks, tears or excess wear,
wire brushes for loose or cracked wires. If
power tool or accessory is dropped, inspect
for damage or install an undamaged accessory.
After inspecting and installing an accessory,
position yourself and bystanders away from the
plane of the rotating accessory
and run the power tool at maximum no-load
speed for one minute. Damaged accessories
will normally break apart during this test time.
Wear personal protective equipment.
Depending on application, use face shield,
safety goggles or safety glasses. As
appropriate, wear dust mask, hearing
protectors, gloves and workshop apron capable
of stopping small abrasive or workpiece
fragments.
The eye protection must be capable
of stopping flying debris generated by various
operations. The dust mask or respirator
must be capable of filtrating particles generated
by your operation. Prolonged exposure
to high intensity noise may cause hearing loss.
Keep bystanders a safe distance away from
the work area. Anyone entering the work area
must wear personal protective equipment.
Fragments of workpiece or of a broken accessory
may fly away and cause injury beyond immediate
area of operation.
Hold the power tool only by the insulated
gripping surfaces when performing an operation
where the cutting accessory may contact
hidden wiring or its own cord. Contact with a
“live” wire will also make exposed metal parts of the
power tool “live” and shock the operator.
Position the cord clear of the spinning
accessory. If you lose control of the power tool,
the cord may be cut or snagged and your
hand or arm may be pulled into the spinning
accessory.
Never lay the power tool down until the
accessory has come to a complete stop. The
spinning accessory may grab the surface and
pull the power tool out of your control.
Do not run the power tool while carrying it
at your side. Accidental contact with the
spinning accessory could snag your clothing,
pulling the accessory into your body.
Regularly clean the power tool’s air vents.
The motor’s fan will draw the dust inside the
housing and excessive accumulation of powdered
metal may cause electrical hazards.
Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, brush
or any other accessory. Pinching or snagging
causes rapid stalling of the rotating accessory
which in turn causes the uncontrolled power tool to
be forced in the direction opposite of the
accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged
or pinched by the workpiece, the edge of the
wheel that is entering into the pinch point
can dig into the surface of the material causing
the wheel to climb out or kick out. The wheel may
either jump toward or away from the operator,
depending on direction of the wheel’s movement at
the point of pinching.
Abrasive wheels may also break under these
conditions.
Kickback is the result of power tool misuse
and/or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below.
Maintain a firm grip on the power tool and
position your body and arm to allow you to
resist kickback forces. Always use auxiliary
handle, if provided, for maximum control
over kickback or torque reaction during
start-up. The operator can control torque reactions
or kickback forces, if proper precautions are taken.
Never place your hand near the rotating
accessory. The accessory may kickback over
your hand.
Do not position your body in the area where
the power tool will move if kickback occurs.
Kickback will propel the tool in the direction
opposite to the wheel’s movement at the
point of snagging.
Use special care when working corners,
sharp edges, etc. Avoid bouncing and snagging
the accessory. Corners, sharp edges or
bouncing have a tendency to snag the rotating
accessory and cause loss of control or
kickback.
Do not attach a saw chain woodcarving
blade or toothed saw blade. Such blades
create frequent kickback and loss of control
over the power tool.
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