Grizzly G0599 - Manual (Page 18)

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G0596-G0599 Industrial Bench Grinders
Figure 7. Assembly order for wheel installation.
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NEVER assemble a grinding wheel on the
arbor without paper or fiber discs between
the wheel and the flange. Not using the
discs can put stress on the wheel, causing
it to crack and possibly fall apart.
ALWAYS visually inspect and perform a
“ring test” on a wheel before assembly. DO
NOT use damaged wheels!
6. Re-install the wheel guard.
7. Run a new wheel for at least one minute
while standing clear of the line of rotation. If
a wheel does have defects it will generally fail
within that time.
Wheel Replacement
The wheel guard must be removed in order to
mount or dismount a grinding wheel.
To replace a grinding wheel:
1. UNPLUG THE GRINDER!
2. Remove the wheel guard.
3. Use a wrench on the arbor nut. Hold the
wheel from turning with your other hand.
Note that the wheel on the left-hand side of
the machine has left-handed threads, so the
arbor nut on that side must be turned clock-
wise to loosen.
4. Remove the outer wheel flange and the
paper disc. Pull the wheel free from the
arbor. There will also be a paper disc and a
wheel flange on the other side of the wheel.
5. Mount the new wheel as shown in Figure
7. Always make certain there is a paper or
fiber disc between the wheel flanges and
the wheel itself. Tighten the nut snugly but
DO NOT over-tighten. Over-tightening can
crack the wheel (see
Figure 8).
Figure 8. Nut removal/tightnening.
Arbor Nut