Nilfisk-Advance 7765 - Page 76

Solution System 181Service Manual – Advance 7765 / Nilsk CR1500
Overview – ESP/Recycle Option
On machines
equipped with
the ESP/Recycle
option, wastewater
is pumped from
the Recovery Tank
to the Solution Tank
to be recycled to
the Scrub Brushes.
The Detergent Pump
adds detergent
to the solution
downstream of the
Ball Valve.
The vacuum
motor pulls the
wastewater (dark
blue arrows) from
the Squeegee to
the Recovery Tank.
The wastewater
passes through the
Solution Inlet Filter,
then to the ESP
Solution Pump that
pumps the ltered
wastewater (light
blue arrows) back
into the Solution
Tank.
The Recovery High Switch (red oat switch) in the Recovery Tank and Recycling System On/Off switch on the
instrument panel control the ESP Solution Pump.
The Detergent Pump pumps detergent (red arrows) from the Detergent Tank into the solution stream. The
solution/detergent mixture (violet arrow) is then delivered to the three Scrub Brushes.
Refer to the Recovery System section for more information on the recovery tank congurations and
operation, and the ESP/Recycle option.
Scrub
Brushes
Solution
Tank
Detergent
Tank
Detergent
Pump
ESP
Solution
Pump
Recovery
Tank
Solution
Inlet
Filter
Inlet
Strainer
Ball Valve
Squeegee