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coming to an abrupt stop. This causes the
electrical power tool (if not controlled) to move in
the opposite direction to the direction of rotation
of the attachment at the point of constraint.
If, for example, a grinding disc is pinched or snags
in a workpiece, this can cause the edge of the
grinding disc to penetrate the workpiece,
become trapped there and either free itself
or kickback. The grinding disc moves towards
or away from the operator, depending on the
direction of movement of the disc at the point of
constraint. The grinding disc could also break.
Kickback occurs as a result of incorrect use or
misuse of the electrical power tool. It can be
prevented by taking the appropriate precautions
as described below.
a) Maintain a rm grip on the electrical
power tool and position your body
and arms to allow you to resist kickback
forces. Always use the auxiliary
handle, if provided, to exercise the
greatest possible control over kickback
forces or reaction torques as the
device builds up to full speed. By taking
suitable precautions the operator can control
kickback and reaction forces.
b) Do not place your hands near a rotating
attachment. If kickback occurs the attachment
could move over your hand.
c) Avoid positioning your body in the
area into which the electrical power
tool would move in the event of a
kickback. A kickback moves the electrical
power tool in the opposite direction to the
direction of movement of the grinding disc at the
point of constraint.
d) Work particularly carefully in the
area of corners, sharp edges etc. to
avoid the attachment bouncing or
snagging on the workpiece. Corners,
sharp edges or bouncing have a tendency to
snag the rotating attachment. This causes loss
of control or kickback.
e) Do not use saw-chain woodcarving
discs or toothed discs. Such attachments
create frequent kickback and loss of control of
the electrical power tool.
Special safety advice relating
to grinding and disc-cutting
a) Always use the guard designed for
the type of abrasive consumable you
are using. Always use abrasive consumables
approved for use with your electrical power
tool. Abrasive consumables not approved for
use with your electrical power tool cannot be
adequately guarded and are unsafe.
b) To ensure the highest level of operational
safety, the disc guard cover
must be attached to the electrical
power tool and set in such a way that
the smallest possible area of the
abrasive consumable is exposed to
the operator. The disc guard cover is there
to protect the operator from pieces breaking
o and accidental contact with the abrasive
consumable.
c) Abrasive consumables must be used
only for their recommended purposes,
For example: never grind with the
side face of a cutting disc. Cutting discs
are intended for removing material using the
edge of the disc. Sideways forces on these
abrasive consumables can cause them to break.
d) Always use an undamaged mounting
ange of the correct size and shape
for your selected grinding disc. Suitable
anges support the grinding disc and reduce
the chance of it breaking. Flanges for cutting
discs are dierent from the anges for other
abrasive discs.
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