5
- Never lay the power tool down until the accessory
has come to a complete stop.
The spinning acces-
sory 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 ma-
terials.
Sparks could ignite these materials.
-
Do not use accessories that require liquid cool-
ants.
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 in-
correct 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 reac-
tions or
kickback forces, if proper precautions are taken.
-
Never place your hand near the rotating acces-
sory.
Accessory may kickback over your hand.
-
Do not position your body in the area where
power tool will move if kickback occurs.
Kickback
will propel the
tool in 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 ac-
cessory.
Corners,
sharp edges or bouncing have a
tendency to snag the
rotating accessory and cause
loss of control or kickback.
Just because the accessory can be attached to your
power tool, it does not assure safe operation.
-
The rated speed of the accessory must be at least
equal to the maximum speed marked on the power
tool.
Accessories
running faster than their rated speed
can break
and fly apart.
-
The outside diameter and the thickness of your ac-
cessory must be within the capacity rating of your
power tool.
Incorrectly sized accessories cannot be
adequately
guarded or controlled.
- The arbor size of wheels, flanges, backing pads or
any other accessory must properly fit the spindle of
the power tool.
Accessories 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 pad for cracks, tear or
excess wear, wire brush 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 maxi-
mum no-load speed for one minute.
Damaged ac-
cessories 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 ca-
pable of stopping small abrasive or workpiece frag-
ments.
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 work
area. Anyone entering the work area must wear per-
sonal 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 by insulated gripping surfaces
only, when performing an operation where the cut-
ting accessory may contact hidden wiring or its
own cord.
Cutting
accessory contacting a “live” wire
may make exposed
metal parts of the power tool “live”
and could give the operator
an electric shock.
-
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.
-
Do not attach a saw chain woodcarving blade or
toothed saw blade.
Such blades create frequent kick-
back
and loss of control over the power tool.
Safety warnings specific for Grinding and Abrasive
Cutting-Off operations
-
Use only wheel types that are recommended for
your power tool and the specific guard designed
for the selected wheel.
Wheels for which the power
tool was not designed
cannot be adequately guarded
and are unsafe.
-
The guard must be securely attached to the
power tool and positioned for maximum safety,
so the least amount of wheel is exposed towards
the operator.
The
guard helps to protect operator from
broken wheel fragments,
accidental contact with wheel
and sparks that
could ignite clothing.
-
Wheels must be used only for recommended ap-
plications. For example: do not grind with the side
of the cut-off wheel.
Abrasive cut-off wheels are in-
tended for peripheral grinding; side forces applied to
these wheels may cause them to shatter.
-
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.
Wheels intended for larger power tools are 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 mo-
tion otherwise kickback may occur.
Investigate and
take corrective action to eliminate
the cause of wheel
binding.
