k) 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. langes for cut-off wheels may be
different from grinding wheel flanges.
l) 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 instructions for cutting-off operations
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 binding of the wheel in
the cut and the possibility of kickback or wheel breakage.
b. Do not position your body in lime 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 the cut. The wheel may bind, walk up or
kickback if the power tool is restarted in the workpiece.
e. Support panels or any oversized workpiece to minimize the of wheel
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 wheel.
f. Use extra caution when making a “pocket cut ” into existing walls or
other blind areas . The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
Check that speed marked on the wheel is equal to or about of the rated speed of the
grinder.
Ensure that the wheel dimensions are compatible with the grinder.
Abrasive wheels shall be stored and handed 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
manufacture's instructions.
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 are
considerable vibrations or other defects are detected. if this condition occurs, check
the machine to determine the causation.