Grizzly H7757 - Manual (Page 16)

Model H7757 3" Mini Wool Buffer -14 -
NEVER assemble a grinding wheel on
the arbor without paper or fiber discs
between the wheel and the flanges.
Failure to include the paper or fiber
discs can result in damage to the
wheel and cause it to fail when at
speed, causing serious injury!
6. Re-install the guards and shields.
7. Run a new wheel for at least one min-
ute while standing clear of the line of
rotation. If a wheel does have defects
it will generally fail as soon as it gets
up to full speed.