51Service Manual – SC900
34 - Scrub System, Disc
Functional Description
The scrub system consists of a scrub deck that
is raised and lowered with a foot pedal at the
rear of the machine. The two counter rotating
brushes are driven by independent motors with
integral speed reduction gear boxes.
The scrub deck is supported by a parallelogram
linkage to maintain level with the oor at any
height. The deck lift lever can be set in a raised
position, oat, medium, or heavy scrub.
The brush motors are counter-rotating DC
motors with integral gear reduction. They are
relay controlled without variable speed or soft
start.
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