ADDITIONAL SAFETY INSTRUCTIONS FOR ANGLE GRINDERS
FURTHER SAFETY INSTRUCTIONS FOR ALL OPERATIONS
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad,
brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power tool to be forced in the
direction opposite of the accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge
of the wheel that is entering into the pinch point can dig into the surface of the
material causing the wheel to climb out or kick out. The wheel may either jump toward
or away from the operator, depending on direction of the wheel’s movement at the
point of pinching. Abrasive wheels 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 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.
ADDITIONAL SAFETY INSTRUCTIONS FOR GRINDING OPERATIONS
Safety Warnings Specific for Grinding.
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.
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