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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 with both
hands on the power tool and
position your body and
EN
8
arms 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.
b) Never place your hand
near the rotating accessory.
Accessory 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
direction opposite to the wheel's
movement at the point of
snagging.
d) 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.
e) Do not attach a saw
chain woodcarving blade,
segmented diamond wheel
with a peripheral gap greater
than 10 mm or toothed saw
blade. Such blades create
frequent kickback and loss of
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