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g) Mandrel mounted wheels, sanding
drums, cutters or other accessories must
be fully nserted into the collet or chuck.
If the mandrel is insufficiently held and/or
the overhang of the wheel is too long, the
mounted wheel may become loose and be
ejected at high velocity.
h) Do not use a damaged accessory.
Before each use inspect the accessory
such as abrasive wheels for chips
and cracks, sanding drum 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 maximum no-load speed for one
minute. Damaged accessories will normally
break apart during this test time.
i) 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.
j) Keep bystanders a safe distance away
from 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
k) Hold power tool by insulated gripping
surfaces only, 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 power tool "live" and could give the
operator an electric shock.
l) Always hold the tool firmly in your
hand(s) during the start-up. The reaction
torque of the motor, as it accelerates to full
speed, can cause the tool to twist.
m) Use clamps to support workpiece
whenever practical. Never hold a small
workpiece in one hand and the tool in
the other hand while in use. 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.
n) 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.
o) 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.
p) After changing the bits or making any
adjustments, make sure the collet nut,
chuck or any other adjustment devices
are securely tightened. Loose adjustment
devices can unexpectedly shift, causing
loss of control, loose rotating components
will be violently thrown.
q) 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.
r) 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.
s) Do not operate the power tool near
flammable materials. Sparks could ignite
these materials.
t) 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, 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
