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-30-
For Machines Mfg. Since 8/09
Model SB1029
OPERATION
7. Spin the wheel so it rotates one full turn and
comes to rest with the heaviest side hanging
down at six O'clock. This may take a few
times to find the exact location.
8. Using a pencil, draw a line on the wheel at
the six O'clock position to mark the heaviest
side.
9. Line up the closest dog with the line you
just drew and lock it in place. This dog will
now be positioned at the heaviest side of the
wheel and will be called dog "A".
10. Using the scale as a guide, position the other
two "B" dogs so they are both evenly spaced
120° degrees apart from the "A" dog. At this
point, all dogs will be 120° apart from one
another. "B" dogs will be the two dogs that
will be moved to balance out the location
that is out of balance.
11. Rotate the wheel to 90° degrees and release
it to observe the direction that the wheel
rotates out of balance. Move each "B" dog
toward one another and away from dog "A"
in 1° degree increments to balance out the
wheel.
For example: depending on the amount of
balance correction, the distance between
the two "B" dogs will decrease, and the
distance between the "B" dogs and "A" dog
will increase. This step must be repeated as
many times as required until the wheel will
not rock back and forth by itself the heavy
spot.
12. When you are satisfied with the wheel
balance settings, install the grinding wheel
on the machine, and test run for five minutes
to verify the balance. If any problems are
detected, repeat the balancing procedure.
Note: Some machinists will re-dress the grinding
wheel one last time at this point to ensure
ultra-precision grinding results.