71Service Manual – SC900
40-Recovery System
Functional Description
The recovery system extracts wastewater from
the oor and deposits it into the on-board
recovery tank.
Vacuum Motor and Recovery Tank
The vacuum motor generates airow through the
recovery tank and suction hose to the squeegee.
The high velocity air at the squeegee pulls the
wastewater off the oor and up through the
suction hose. As the mixture of air and water
enters the recovery tank, the airow slows down
due to the larger space, and the water drops out
of the airow and into the tank.
The airow passes through an inlet screen to
prevent debris from entering the impeller of
the vacuum motor. The exhaust air is expelled
inside the machine so it can be dispersed without
blowing directly on the operator or the work
environment.
To prevent wastewater from entering the vacuum
motor, a oat valve blocks the vacuum when the
recovery tank is full.
Vacuum
Motor
Exhaust
Suction
Inlet
Recovery
Tank
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