Grizzly H7757 - Manual (Page 18)

Model H7757 3" Mini Wool Buffer -16 -
SECTION 5: MAINTENANCE
The grinding wheel should be visually
inspected before every use. Take care
when storing grinding wheels to keep them
free from potential damage due to being
dropped or having other items dropped
on them. Store all grinding wheels in a dry
location. Type 1 grinding wheels should
be stored vertically with cushioning mate-
rial between each wheel.
If a grinding wheel diameter has been
reduced to 2
1 ⁄
2
", the wheel must be
replaced. Operating a wheel at anything
less than this diameter can lead to wheel
explosion and serious personal injury.
Grinding wheels will require periodic
dressing. Refer to the
Wheel Dressing
instructions on Page 13 for details on how
this is done.
Always be aware of the condition of your
machine. Routinely check the condition of
the following items and repair or replace
as necessary:
• Damaged or loose grinding wheels.
• Loose mounting bolts or arbor nuts.
• Worn switch.
• Worn or damaged cord.
• Worn or damaged support bearings.
• Any other condition that could hamper
the safe operation of this machine.
General
Sealed and pre-lubricated ball bearings
require no additional attention for the life
of the bearings. All bearings are standard
sizes, and replacements can be pur-
chased from our Parts Department or a
bearing supply store.
Lubrication
Grinding Wheels
Buffing wheels should be regularly
cleaned of compounds to maintain their
effectiveness and surface texture. Wool
buffing wheels will shed fibers and will
need to be replaced eventually. If a buff-
ing wheel is reduced to 2
1 ⁄
2
", the wheel
must be replaced. Operating a wheel at
anything less than this diameter can tear
or rip, posing an entangement hazard for
the workpiece and operator.
Buffing Wheels