MAINTENANCE
75
810D MM310 (3--95)
3. Start the main brush.
4. Lower the main brush for 15 to 20 seconds
while keeping a foot on the brakes to keep
the machine from moving. This will lower the
rotating main brush.
NOTE: If chalk or other material is not available,
allow the brushes to spin on the floor for two
minutes. A polish mark will remain on the floor.
5. Raise the main brush.
6. Stop the main brush.
7. Drive the machine off the test area.
8. Observe the width of the brush pattern. The
proper brush pattern width is 65 to 75 mm
(2.5 to 3.5 in).
9. To increase the width of the main brush
pattern, turn the main brush down pressure
knob counter-clockwise.
To decrease the width of the main brush
pattern, turn the main brush down pressure
knob clockwise.
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