Prolonged exposure to high intensity noise
may cause hearing loss.
Fragments of workpiece or of a
broken accessory may y away and cause
injury beyond immediate area of operation.
Cutting accessory contacting a “live” wire may
make exposed metal parts of the power tool
“live” and could give the operator an electric
shock.
The reaction torque of
the motor, as it accelerates to full speed, can
cause the tool to twist.
Clamping a small
workpiece allows you to use your hand(s)
to control the tool. Round material such as
dowel rods, pipes or tubing have a tendency
to roll while being cut, and may cause the bit
to bind or jump toward you.
If you lose control, the cord may
be cut or snagged and your hand or arm may
be pulled into the spinning accessory.
The spinning accessory may grab the surface
and pull the power tool out of your control.
Loose adjustment
devices can unexpectedly shift, causing loss
of control. Loose rotating components will be
violently thrown.
Accidental contact with the
spinning accessory could snag your clothing,
pulling the accessory into your body.
The motor’s fan will draw the dust inside
the housing and excessive accumulation of
powdered metal may cause electrical hazards.
Sparks could ignite
these materials.
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, sanding band, 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. 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.
The operator can
control kickback forces, if proper precautions
are taken.
Corners, sharp
edges or bouncing have a tendency to snag
the rotating accessory and cause loss of
control or kickback.
Such
blades create frequent kickback and loss of
control.
Feeding the tool in the wrong direction causes
the cutting edge of the bit to climb out of the
work and pull the tool in the direction of this
feed.
These wheels will grab if they
become slightly canted in the groove, and can
kickback. When a cut-off wheel grabs, the
wheel itself usually breaks. When a rotary le,
high-speed cutter or tungsten carbide cutter
grabs, it may jump from the groove and you
could lose control of the tool.
The accessory may kickback over
your hand.
Kickback will propel the tool in
direction opposite to the wheel’s movement at
the point of snagging.
SAFETY WARNINGS SPECIFIC FOR
GRINDING AND ABRASIVE CUTTING-OFF
OPERATIONS
Abrasive cut-off wheels are
intended for peripheral grinding. Side forces
applied to these wheels may cause them to
shatter.
Proper mandrels
will reduce the possibility of breakage.
Overstressing the wheel increases the loading
and susceptibility to twisting or snagging of
the wheel in the cut and the possibility of
kickback or wheel breakage.
When the wheel,
at the point of operation, is moving away from
your hand, the possible kickback may propel
the spinning wheel and the power tool directly
at you.
Investigate and take corrective action
to eliminate the cause of wheel pinching or
snagging.
The wheel
may bind, walk up or kickback if the power
tool is restarted in the workpiece.
Large workpieces
tend to snag 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.
The protruding wheel may cut gas or
water pipes, electrical wiring or objects that
can cause kickback.
SAFETY WARNINGS SPECIFIC FOR
SANDING OPERATIONS
Larger sanding paper extending
beyond the sanding pad presents a laceration
hazard and may cause snagging, tearing of
the disc or kickback.
SAFETY WARNINGS SPECIFIC FOR
POLISHING OPERATIONS
Loose and spinning
attachment strings can entangle your ngers
or snag on the workpiece.
SAFETY WARNINGS SPECIFIC FOR
WIRE BRUSHING OPERATIONS
The wire
bristles can easily penetrate light clothing and/
or skin.
Loose bristles or
wires will be discharged during the run-in
time.
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