34
ance . Vibrate excessively and may cause loss of control .
f) Do not use a damaged accessory . Before each use inspect
the accessory such as abrasive wheels for chips and
cracks, backing pad for cracks, tear or excess wear and
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 acces-
sories will normally break apart during this test time .
g) Wear personal protective equipment . Depending on ap-
plication, use face shield, safety goggles or safety glasses .
As appropriate, wear dust mask, hearing protectors, gloves
and shop 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 .
h) Keep bystanders a safe distance away from work area .
Anyone entering the work area must wear personal
protective equipment . Fragments of the workpiece or of a
broken accessory may fly away and cause injury beyond
the immediate area of operation .
i) Hold power tool only by insulated gripping surfaces, when
performing an operation where the cutting accessory may
contact hidden wiring or its own cord . Cutting accessory
contacting a “live” wire may make exposed metal parts of
the tool “live” and shock the operator
.
j) Use clamps or another practical way to secure and support
the workpiece to a stable platform . Holding the work by
your hand or against the body leaves it unstable and may
lead to loss of control .
k) Position the cord clear of the spinning accessory . If you
lose control, the cord may be cut or snagged and your
hand or arm may be pulled into the spinning accessory .
l) 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 .
m) 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 .
n) Regularly clean the power tool’s air vents . The motor’s fan
will draw the dust inside the housing and excessive accu-
mulation of powdered metal may cause electrical hazards .
o) Do not operate the power tool near flammable materials .
Sparks could ignite these materials .
p) Do not use accessories that require liquid coolants . Using
water or other liquid coolants may result in electrocution
or shock .
q) Do not work materials containing asbestos (asbestos is
considered carcinogenic) .
r) Take protective measures when during work dust can
develop that is harmful to one’s health, combustible or
explosive (some dusts are considered carcinogenic) wear
a dust mask and work with dust/chip extraction when
connectable .
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 .
a)
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 con-
trol over kickback or torque reaction during start-up . The
operator can control torque reactions or kickback forces, if
proper precautions are taken .
b) Never place your hand near the rotating accessory . Acces-
sory may kickback over your hand .
c) Do not position your body in the area where 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 .
d) Use special care when working corners, shark edges etc .
Avoid bouncing and snagging the accessory . Corners,
shark edges or bouncing have a tendency to snag the
rotating accessory and cause loss of control or kickback .
e) Do not attach a saw chain woodcarving blade or toothed
saw blade . Such blades create frequent kickback and loss
of control .
Safety warnings specific for grinding and abrasive
cutting off operations
a)
Use only wheel types that are recommended for your pow-
er tool and the specific guard designed for the selected
wheel . Wheels for which the power tool was not designed
cannot be adequately guarded that are unsafe .
b) Wheels must be used only for recommended applica-
tions . For example: do not grind with the side of cut-off
wheel . Abrasive cut off wheels are intended for peripheral
grinding, side forces applied to these wheels may cause
them to shatter .
c) 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 maybe differ-
ent from grinding wheel flanges .
d) Do not use worn down wheels from larger power tools .
Wheel intended for larger power tools is not suitable for
the higher speed of a smaller tool and may burst .
Additional safety warnings specific for abrasive cutting
off operations
a)
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 .
b) Do not position your body in line with and behind the ro-
tating wheel . When the wheel, at the point of the operation
is moving away from your body, the possible kickback may
propel the spinning wheel and the power tool directly at
you .
