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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 below.
a) 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 reactions or
kickback forces, if proper precautions are taken.
b) Never place your hand near the rotating
accessory.
Accessory may kickback over your hand.
c) Do not position your body in the area where
power tool will move if kickback occurs.
Kickback will propel the tool in direction opposite
to the wheel's movement at the point of
snagging.
d) Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the
accessory.
Corners, sharp edges or bouncing have a
tendency to snag the rotating accessory and
cause loss of control or kickback.
e) Do not attach a saw chain woodcarving blade
or toothed saw blade.
Such blades create frequent kickback and loss
of control.
SAFETY WARNINGS SPECIFIC FOR
GRINDING AND ABRASIVE CUTTING-OFF
OPERATIONS
a) Use only wheel types that are recommended for
your power tool and the specific guard designed
for the selected wheel.
Wheels for which the power tool was not
designed cannot be adequately guarded and are
unsafe.
b) The guard must be securely attached to the
power tool and positioned for maximum safety,
so the least amount of wheel is exposed towards
the operator.
The guard helps to protect operator from broken
wheel fragments and accidental contact with
wheel.
c) Wheels must be used only for recommended
applications. For example: do not grind with the
side of cut-off wheel.
Abrasive cut-off wheels are intended for
peripheral grinding, side forces applied to these
wheels may cause them to shatter.
d) Always use undamaged wheel flanges that are
of correct size and shape for your selected wheel.
Proper wheel flanges support the wheel thus
reducing the possibility of wheel breakage.
Flanges for cut-off wheels may be different from
grinding wheel flanges.
e) Do not use worn down wheels from larger
power tools.
Wheel intended for larger power tool is not
suitable for the higher speed of a smaller tool
and may burst.
ADDITIONAL SAFETY WARNINGS SPECIFIC
FOR ABRASIVE CUTTING-OFF OPERATIONS
a) Do not "jam" the cut-off wheel or apply
excessive pressure. Do not attempt to make an
excessive depth of cut.
Overstressing the wheel increases the loading
and susceptibility to twisting or blinding of the
wheel in the cut and the possibility of kickback
or wheel breakage.
b) 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.
c) When 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 remove the cut-off wheel from the cut while
the wheel is in motion otherwise kickback may
occur.
Investigate and take corrective action to eliminate
the cause of wheel binding.
d) 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.
GENERAL SAFETY INSTRUCTIONS FOR
GRINDERS
–
Check that speed marked on the wheel is equal to
or greater than the rated speed of the grinder;
–
Ensure that the wheel dimensions are compatible
with the grinder;
–
Abrasive wheels shall be stored and handled with
care in accordance with manufacturer's instructions;
–
Inspect the grinding wheel before use, do not use
chipped, cracked or otherwise defective products;
–
Ensure that mounted wheels and points are fitted
in accordance with the manufacturer's instructions;
–
Ensure that blotters are used when they are provided
with the bonded abrasive product and when they
are required;
–
Ensure that the abrasive product is correctly mounted
and tightened before use and run the tool at no-
load for 30 s in a safe position, stop immediately
if there is considerable vibration or if other defects
are detected. If this condition occurs, check the
machine to determine the cause;
–
If a guard is equipped with the tool never use the
tool without such a guard;
–
Do not use separate reducing bushings or adapters
to adapt large hole abrasive wheels;
–
For tools intended to be fitted with threaded hole
wheel, ensure that the thread in the wheel is long
enough to accept the spindle length;
–
Check that the work piece is properly supported;
–
Do not use cutting off wheel for side grinding;
–
Ensure that sparks resulting from use do not create
a hazard e.g. do not hit persons, or ignite flammable
substances;
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