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Crown CT13525-125 Original Instructions Manual page 12

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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 in-
correct operating procedures or conditions and can be
avoided by taking proper precautions as given below�
• 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 nominal speed of the diamond cutting
discs must be no less than the maximum speed
indicated on the power tool. Otherwise, diamond
cutting discs may collapse and their fragments will fly
apart�
• Use the diamond cutting discs only for their in-
tended purpose. For example, do not grind the part
with the side of the disc. The diamond cutting discs
are designed to work with their edge� The impact of
lateral forces may lead to their destruction�
• 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�
• 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
properly fit the spindle of the power tool. Discs
and flanges with arbour holes that do not match the
mounting hardware of the power tool will out of bal-
ance, vibrate excessively and may cause loss of con-
trol�
• 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
an undamaged disc. After inspecting and install-
ing the disc, position yourself and bystanders
away from the plane of the rotating disc and run
the power tool at maximum no load speed for one
minute. Damaged disc will normally break apart dur-
ing this test time�
• Wear personal protective equipment. Depend-
ing on application, use face shield, safety goggles
safety glasses. As appropriate, wear dust mask,
hearing protectors, gloves and shop apron capa-
ble of stopping small abrasive or workpiece frag-
ments. The eye protection must be capable of stop-
ping flying debris generated by various operations.
The dust mask or respirator must be capable of filtrat-
ing particles generated by your operation� Prolonged
exposure to high intensity noise may cause hearing
loss�
• 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 disc may fly away and cause
injury beyond immediate area of operation�
• Hold the power tool by insulated gripping surfac-
es only, when performing an operation where the
diamond cutting disc may contact hidden wiring or
its own cord. Diamond cutting disc contacting a "live"
wire may make exposed metal parts of the power tool
"live" and could give the operator electric shock�
• Position the cord clear of the spinning diamond
cutting disc. If you lose control, the cord may be cut
or snagged and your hand or arm may be pulled into
the spinning disc�
English
12

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