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▶ The outside diameter and the thickness of the accessory tool must be within the ranges stated for
your power tool. Incorrectly sized accessory tools cannot be adequately guarded or controlled.
▶ Wheels and flanges must be a perfect fit on the mounting hardware of your power tool. Accessory
tools that are not a perfect fit on the mounting hardware of the power tool rotate out of balance, vibrate
very severely and can lead to loss of control.
▶ Do not use damaged wheels. Prior to use, always check the wheels for splintering and cracks. If
the power tool or the wheel is dropped, inspect for damage or use an undamaged wheel. After
inspecting and installing a wheel, position yourself and bystanders away from the plane of the
rotating wheel and run the power tool at maximum speed for one minute. If a wheel has been
damaged it will usually break during this test period.
▶ Wear personal protective equipment. Wear a face shield, eye protection or safety goggles, as
appropriate to the application. As appropriate, wear dust mask, hearing protectors, gloves or
workshop apron capable of stopping small abrasive or workpiece fragments. Make sure your eyes
are protected against the flying debris created by various machining operations. The dust mask or
respirator must be capable of filtering out dust particles resulting from use of the power tool. Prolonged
exposure to high-intensity noise can cause hearing loss.
▶ Keep bystanders a safe distance away from the work area. Anyone entering the work area must
wear personal protective equipment. Fragments of the workpiece or of a broken accessory tool may
fly off and cause injury beyond the immediate area of operation.
▶ Only hold the tool by its insulated gripping surfaces if carrying out work where the insert tool may
come into contact with concealed wiring. Metal parts of the power tool can also become live, resulting
in electric shock, if contact is made with a live cable.
▶ Never lay the power tool down before the accessory tool has come to a complete stop. If the
rotating accessory tool is allowed to touch the surface on which you place the power tool, you could lose
control of the power tool.
▶ Never start the power tool while carrying it around. Accidental contact with the spinning accessory
could snag your clothing, pulling the accessory into your body.
▶ Clean the ventilation slots on the power tool at regular intervals. The motor's fan draws dust into the
housing and a build-up of metallic dust can cause electrical hazards.
▶ Do not operate the power tool near flammable materials. Sparks could ignite these materials.
Kickback and the applicable safety instructions
Kickback is the sudden reaction to a snagged or jammed rotating wheel. Snagging or binding brings the
rotating accessory tool to an abrupt stop. This forces an uncontrolled power tool in the direction opposite to
the accessory tool's direction of rotation at the point of binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel entering
the pinch point can dig into the surface of the material causing the wheel to climb out or kick back. The
wheel then skips toward or away from the operator, depending on the wheel's direction of movement at the
point of pinching. Abrasive wheels can also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions. It can be
avoided by taking the proper precautions as described below.
▶ Maintain a firm grip on the power tool and position your body and arms to absorb kickback forces.
Always use the auxiliary handle, if provided, for maximum control over kickback forces or torque
reaction during start-up. By adopting suitable precautionary measures the operator can control the
kickback and reaction forces.
▶ Always keep your hand well clear of the rotating accessory tool. Kickback could cause the accessory
tool to pass across your hand.
▶ Keep clear of the areas in front of and behind the rotating cut-off wheel. Kickback will propel the
power tool in the direction opposite to the wheel's direction of rotation at the point of snagging.
▶ Exercise special care when working at corners, sharp edges, etc. Avoid allowing the accessory
tool to bounce off or jam in the workpiece. The rotating accessory tool has a tendency to jam at
corners and sharp edges, or if it bounces off the workpiece. This causes loss of control or kickback.
▶ Do not use a saw-chain or toothed saw blade and do not use a segmented diamond wheel with
slots more than 10 mm wide. Cutting tools of this kind frequently cause kickback or loss of control of
the power tool.
▶ Do not "jam" the cut-off wheel or apply excessive pressure. Do not attempt to make excessively
deep cuts. Overstressing the wheel increases loading and susceptibility to twisting or binding of the
wheel in the cut and the possibility of kickback or wheel breakage.
▶ When the wheel is binding or when interrupting a cut for any reason, switch off the power tool
and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to
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