Nilfisk-Advance SC3000, Руководство по обслуживанию

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Solution System 94 Service Manual – SC3000
Solution System
Functional Description
The solution system supplies water and detergent to the brushes when cleaning the floor. The solution tank
is also the main machine body. There is a manual valve on the right side of the tank to close the water sup -
ply whenever maintenance must be performed on the machine. The solution flows from the tank to the tap,
through the filter and solenoid valve (EV1) and then to the brush deck.
The detergent pump (M4) installed only on EcoFlex™ systems, controls the detergent flow from the EcoFlex™
tank and pipes the flow into the main hose after the solenoid valve (EV1).
There is a one-way valve between the EcoFlex™ system pump and the connection with the main hose.
The EcoFlex™ system can be selected with the specific lever under the steering wheel.
The operator sets the amount of detergent with the keys on the serigraphed electronic board installed on the
steering wheel.
There is a manual valve under the tank in a central position, which can be used to drain any liquid in the
battery compartment. There is also a manual valve on the left side, which can be used to drain the detergent
when cleaning the tank.
The solution flow is regulated by different ON/OFF cycling timings depending on:
• Water flow setting (0 ÷ 4)
• Solution tank water level.
Both Solenoid valve and Detergent pump (when EDS system is enabled) follow the same above timings.
The Solenoid valve and the detergent pump are running only when needs the following conditions/inputs:
• Seat microswitch closed
• Brushes function enabled
• Drive pedal pressed
• Battery level not in red light blinking condition.
Wiring Diagram
BU
J2.1
J2.3
J2.2
J2.4
BK WH
Function
electronic
board (EB1)
Detergent pump
(M4)
Solenoid valve
(EV1)
P100575