various operations. However, before you perform
these operations, you should be able to install and
dress the wheels properly, whenever required.
WHEEL INSTALLATION.--The wheel of a
pedestal grinder must be properly installed; otherwise,
it will not operate properly and accidents may occur.
Before you install a wheel, inspect it for visible defects
and "sound" it by tapping lightly with a piece of hard
wood to determine if it has invisible cracks. A good
wheel will give out a clear ringing sound when tapped.
If you hear a dull thud, the wheel is cracked and should
not be used. When installing the wheel on the grinding
machine, you should always refer to the technical
manual to ensure that the wheel is correctly installed
Figure 5-62.--Using a grinding wheel dresser.
Figure 5-63.--Sensitive drill press.