Do always follow instructions for correct storage.
Do always visually inspect grinding wheels before mounting for possible damage during transport and eliminate damaged ones.
Do always use a safety guard, which should cover nearly one half of the grinding wheel.
Do always use non-reinforced cutting-off wheels on fixed stationary machines.
Do always switch off the power at the supply and/or unplug the machine before changing the wheel.
Do always use the tools supplied by the machine manufacturer to change the wheel.
Do always ensure that the spindle speed of the machine is no higher than the operating speed marked on the wheel.
Do always use the correct wheel mounting flanges for grinding wheels and check that they are undamaged, clean and free of burrs.
Do always use blotters between the mounting flanges and the wheel sides for soft mounting of flat cutting-off wheels.
Do always allow newly mounted wheels to run.
DON’T store wheels in a damp atmosphere or in extreme temperatures.
DON’T use non-reinforced cutting-off wheels on portable machines.
DON’T handle wheels roughly.
DON’T drop portable machines or lower to the floor by the cable or air hose. A wheel can be easily cracked by the weight of the machine if it is up.
DON’T mount a damaged wheel.
DON’T EVER exceed the maximum operating speed marked on the wheel.
DON’T force a wheel onto a machine spindle.
DON’T use mounting flanges which are incorrect, damaged, dirty or worn out.
DON’T tighten the mounting nut or locking flange excessively. This can distort the flanges.
DON’T use blotters for soft mounting of depressed-centre concave wheels.