Before the grinding wheel is installed, it must be calibrated to its safe speed. Marked or unmarked grinding wheel must be re-tested.
Before installation, use a mallet tapping the wheel. If found to have dumb sound, indicating that there may be cracks within the wheel, can not be used.
Sandwiched on both sides of the wheel, its shape, size, must be the same. The flange diameter is half the diameter of the grinding wheel, and the inside requires a groove. Between the wheel end and the flange, to pad a thickness of about 1 ~ 2mm elastic cardboard or fur, oil rubber gasket, gasket diameter slightly larger than the outer diameter of the flange.
Should be symmetrically tightened flange screws, so that the distribution of clamping force evenly. But the force should not be too large to avoid fracturing wheel.
After the grinding wheel is installed, it must be at least once a static balance to install on the grinder.