Crown CT15228-110-W Originalbetriebsanleitung Seite 22

• Fix the workpiece� Clip the workpiece more safely
and steadily with fixed tooling or bench screw.
• Start the power tool first, and then put it on the ma-
terial surface for processing� Keep both hands away
from the diamond cutting disc in rotation�
• Stop the power tool immediately if powerful rebound
is caused due to jamming of the diamond cutting disc
during operation�
• Stop before put down the power tool� Do not put
down the power tool before its complete stop�
• Do not hand over the power tool to children for op-
eration�
• We can guarantee the power tool performance if
only using accessories specified for the power tool.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged
rotating diamond cutting disc� Pinching or snagging
causes rapid stalling of the rotating diamond cutting
disc which in turn causes the uncontrolled power tool
to be forced in the direction opposite of the diamond
cutting disc's rotation at the point of the binding�
For example, if an diamond cutting disc is snagged or
pinched by the workpiece, the edge of the disc that is
entering into the pinch point can dig into the surface
of the material causing the disc to climb out or kick
out� The diamond cutting disc may either jump toward
or away from the operator, depending on direction of
the disc's movement at the point of pinching� Abrasive
discs 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 be-
low�
• Maintain a firm grip on the power tool and po-
sition 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 reactions or kickback forces, if proper
precautions are taken�
• Never place your hand near the rotating ac-
cessory. Accessory may kickback over your hand�
• Do not position your body in line with the ro-
tating diamond cutting disc. Kickback will propel
the power tool in direction opposite to the disc's
movement at the point of snagging�
• Use special care when working corners,
sharp edges etc. Avoid bouncing and snagging
the diamond cutting disc. Corners, sharp edges
or bouncing have a tendency to snag the rotating
diamond cutting disc and cause loss of control or
kickback�
• Do not attach a saw chain, woodcarving blade,
segmented diamond disc with a peripheral gap
greater than 10 mm or toothed saw blade. Such
accessories create frequent kickback and loss of
control�
• Do not "jam" the diamond cutting disc or ap-
ply excessive pressure. Do not attempt to make
an excessive depth of cut. Overstressing the dia-
mond cutting disc increases the loading and suscep-
tibility to twisting or binding of the disc in the cut and
the possibility of kickback or disc breakage�
• When diamond cutting disc is binding or when
interrupting a cut for any reason, switch off the
power tool and hold the power tool motionless
until the disc comes to a complete stop. Never
attempt to remove the disc from the cut while the
disc is in motion otherwise kickback may occur.
Investigate and take corrective action to eliminate
the cause of disc binding�
• Do not restart the cutting operation in the
workpiece. Let the diamond cutting disc reach
full speed and carefully re-enter the cut. The disc
may bind, walk up or kickback if the power tool is
restarted in the workpiece�
• Support panels or any oversized workpiece
to minimize the risk of diamond cutting disc
pinching and kickback. Large workpieces tend
to sag 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 disc�
• Use extra caution when making a "pocket cut"
into existing walls or other blind areas. The pro-
truding disc may cut gas or water pipes, electrical
wiring or objects that can cause kickback�
Safety guidelines during power tool
operation
Cut-off machine safety warnings
• The guard provided with the power tool must be
securely attached to the power tool and positioned
for maximum safety, so the least amount of disc
is exposed towards the operator. Position yourself
and bystanders away from the plane of the rotating
disc. The guard helps to protect operator from broken
disc fragments and accidental contact with disc�
• Use only bonded reinforced or diamond cutting
disc for your power tool. Just because an accessory
can be attached to your power tool, it does not assure
safe operation�
• The rated speed of the accessory must be at
least equal to the maximum speed marked on the
power tool. Accessories running faster than their rat-
ed speed can break and fly apart.
• Disc must be used only for recommended appli-
cations. For example: do not grind with the side
of cut-off disc. Abrasive cut-off disc are intended for
peripheral grinding, side forces applied to these disc
may cause them to shatter�
• Always use undamaged disc flanges that are of
correct diameter for your selected disc. Proper disc
flanges support the disc thus reducing the possibility
of disc breakage�
• Do not use worn down reinforced disc from larg-
er power tools. Disc intended for a larger power tool
are not suitable for the higher speed of a smaller power
tool and may burst�
• The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories cannot
be adequately guarded or controlled�
• The arbour size of discs and flanges must prop-
erly fit the spindle of the power tool. Discs and
flanges with arbour holes that do not match the mount-
ing hardware of the power tool will out of balance, vi-
brate excessively and may cause loss of control�
• Do not use damaged discs. Before each use, in-
spect the discs for chips and cracks. power tool
or disc is dropped, inspect for damage or install
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