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G9717 6" Grinder
-10-
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Make a habit of inspecting your Grinder each
time you use it. Check for the following conditions
and repair or replace when necessary:
11..
Loose mounting bolts.
22..
Worn switch.
33..
Worn or damaged cords and plugs.
44..
Damaged Grinding Wheel.
55..
Any other condition that could hamper the
safe operation of this machine.
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The grinding wheel should be inspected before
every use. Use the ring check method noted in
the Grinding Wheel section in Operations to ver-
ify the structural integrity. If using coolant during
grinding, always run the wheel for 5-10 minutes
at the end of the operation to remove any coolant
from the wheel. Take care in storing grinding
wheels to keep them free from potential damage
by being dropped, or having other items drop on
them.
Replace the wheel when the wheel diameter is
reduced to 4". Operating at anything less than
this diameter does not allow the proper alignment
of the Tool Rest and the Eye Shield.
Depending on the type of grinding you do, the
grinding wheel may require periodic dressing.
There are several different types of wheel dress-
ing devices available on the market. Use a suit-
able diamond or silicon carbide stick type dress-
er. Sweep it smoothly and evenly several times
across the face of the wheel. Dressing restores
the abrasive quality of the wheel surface, plus it
will bring the wheel edge back to a square form.
Refer to the instructions which accompany your
dressing accessory for complete detail on wheel
dressing.
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The Model G9717 features factory-sealed bear-
ings. A sealed bearing requires no lubrication
during its lifetime. Should a bearing fail, your
grinder will probably develop a noticeable rumble,
which will increase when the machine is put
under load. If the bad bearing is not replaced, it
will eventually seize - possibly doing damage to
other parts of the machine. Bearings are standard
sizes and can be replaced through Grizzly.