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-14- H3368 Grinder/Sander Combo
Wheel Care Wheel Dressing
Your safety when grinding depends, on a large
part, on the condition of the wheel during grinding.
A wheel in poor condition presents the possibility
of breaking apart during rotation, injuring the
operator and possibly causing property damage.
To properly care for your wheel, follow these
tips:
• Always transport, store and handle wheels
with care. Wheels may be damaged if they
are dropped or if heavy objects are stacked
on them.
• Select the right grinding wheel for the job. DO
NOT grind material that is not designed for
the wheel.
• Select the right wheel for the machine. A
machine that rotates at a higher RPM than
the wheel is rated for may cause the wheel to
fly apart.
• Mount the wheels properly. (See the
“Replacing Wheels” instructions on page 16
for guidance.) Never use a wheel with the
wrong arbor size for the grinder.
• DO NOT abuse the wheel by jamming the
work into the grinding wheel with excessive
force.
• Learn how to use the grinder and the grinding
wheels properly. Ask a trusted person with
experience or consult with your local library to
learn more.
• Grinding on side of the wheel may cause
wheel damage.
• Dress the grinding wheel when the surface
loses its abrasive quality or “bite.”
Dressing restores the grinding wheel with a like-
new abrasive quality. Whenever the front surface
of the wheel loses its abrasive qualities (loading
or polishing), then the wheel should be dressed. A
dressing tool is included for this purpose.
To dress the grinding wheel:
1. With the machine plugged into power, stand
to the side of the grinding wheel and move
the red switch to the ON position.
2. Allow the machine to run for at least 1 full
minute to make sure that the grinding wheel
is not going to fly apart and injure you, then
move to the front of the machine.
3. Hold the dressing tool firmly on the tool rest
with both hands and press it lightly against
the front surface of the grinding wheel as
shown in Figure 11.
Figure 11. Using wheel dressing tool.
4. Move the dressing tool in a side-to-side
motion, while keeping it even with the front
surface of the grinder.
5. Regularly pull the dressing tool away from the
wheel for visual inspection and repeat steps
3 & 4 until the surface of the wheel appears
to be restored to its normal color and texture.