Bosch GWS Professional 24-300 - Manual (Page 21)

English | 21
Bosch Power Tools 3 609 929 B90 | (12.11.09)
f 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 re-
actions or kickback forces, if proper precau-
tions are taken.
f Never place your hand near the rotating ac-
cessory. Accessory may kickback over your
hand.
f Do not stand in line with the rotating grind-
ing disc. Kickback will propel the power tool
in the direction opposite to the grinding
disc’s movement at the point of snagging.
f Use special care when working corners,
sharp edges, etc. Avoid bouncing and snag-
ging the accessory. Corners, sharp edges or
bouncing have a tendency to snag the rotat-
ing accessory and cause loss of control or
kickback.
f Do not attach a saw chain woodcarving
blade, a segmented diamond cutting disc
blade with segments greater than 10 mm,
or a toothed saw blade. Such application
tools create frequent kickback or loss of con-
trol over the power tool.
Additional safety warnings specific for abra-
sive cutting off operations
f
Do not “jam” the cut-off wheel or apply ex-
cessive pressure. Do not attempt to make
an excessive depth of cut. Overstressing the
wheel increases the loading and susceptibili-
ty to twisting or binding of the wheel in the
cut and the possibility of kickback or wheel
breakage.
f 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.
f When wheel is binding or when interrupting
a cut for any reason, switch off the power
tool and hold the power tool motionless un-
til the wheel comes to a complete stop. Nev-
er attempt to remove the cut-off wheel from
the cut while the wheel is in motion other-
wise kickback may occur. Investigate and
take corrective action to eliminate the cause
of wheel binding.
f Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed
and carefully reenter the cut. The wheel may
bind, walk up or kickback if the power tool is
restarted in the workpiece.
f Support panels or any oversized workpiece
to minimize the risk of wheel pinching and
kickback. Large workpieces tend to sag un-
der 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.
f Use extra caution when making a “pocket
cut” into existing walls or other blind areas.
The protruding wheel may cut gas or water
pipes, electrical wiring or objects that can
cause kickback.
Additional safety warnings
Wear safety goggles.
f Use suitable detectors to determine if utili-
ty lines are hidden in the work area or call
the local utility company for assistance.
Contact with electric lines can lead to fire
and electric shock. Damaging a gas line can
lead to explosion. Penetrating a water line
causes property damage or may cause an
electric shock.
f When working stone, use dust extraction.
The vacuum cleaner must be approved for
the extraction of stone dust. Using this
equipment reduces dust-related hazards.
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