American-Lincoln
®
1-41
SC7740
ESP SYSTEM OPERATING INSTRUCTIONS
SOLUTION
TANK
RECOVERY
TANK
FILTER
FLOW
VALVE
ORIFICE
VALVE
CHECK
VALVE
SCRUB
BRUSH
SQUEEGEE
FILL COUPLING
AUTOFIL
FLOOR
CONTACT
FILTER
SOLUTION
PUMP
SEPARATOR
DETERGENT
PUMP
DETERGENT
TANK
P4759a
THE SCRUBBING SYSTEM - HOW IT WORKS
There are two scrubbing systems available for the SC7740 machine, the non-recycling or standard scrubbing
system and the recycling or ESP scrubbing system.
THE NON-RECYCLING OR STANDARD SCRUBBING SYSTEM - HOW IT WORKS
During the scrubbing process, detergent solution water from the solution tank is fed to the solution line. There
it is fed to the floor where tow or three disc scrubbing brushes work to dislodge soil. After scrubbing, the dirty
solution is vacuumed from the floor and discharged into the recovery tank.
Sensors in each tank will indicate, by lights on the control panel, when the water in the solution tank is too low
or when the water in the recovery tank is too high.
THE ESP RECYCLING SYSTEM ON/OFF SWITCH (Option)
This switch turns the ESP recycling system on and off.
NOTE
The solution control lever must be on “FULL” for ESP operation.
THE RECOVERY OR ESP SYSTEM - HOW IT WORKS
During the scrubbing process, filtered water from the solution tank is fed to the solution line, where it combines
with detergent . This mixture is then fed to the floor where tw or three disc scrubbing brushes work to dislodge
soil. After scrubbing, the dirty solution is vacuumed from the floor and discharged into the recovery tank. At
intervals, a float switch activates the recycling pump, which sends filtered solution from the recovery tank to the
solution tank.
