Solution System
140
Service Manual – SC6500
™
Solution Tank
The
Solution Tank
holds 70 gallons (265 l) of solution. The solution fill cover opens to allow you to fill the
Solution Tank
. The solution empty switch is a float switch that closes and sends a signal to the A2 Control
Board Assembly when the solution level in the
Solution Tank
falls to two to three inches from the bottom of
the tank. The solution system indicator will flash to remind the operator of the low-solution condition, but
the machine will continue to function.
Shutoff Valve
The
Shutoff Valve
allows you to shut off the solution flow from the
Solution Tank
for cleaning and maintenance.
Drain Hose and Hose Cap
The
Drain Hose
allows you to drain the solution tank. To drain the tank, remove the
Drain Hose Cap
.
Solution Filter
The in-line
Solution Filter
prevents any sediment or debris from reaching the solution control pump and
solution solenoid valve. The
Solution Filter
can be disassembled for cleaning.
Solution Control Pump
The
Solution Control Pump
pumps the solution through the solution solenoid valve to the nozzles adjacent to
the scrub brushes. The
Solution Control Pump
gets PWM voltage from the A2 Control Board to regulate the
Solution Control Pump
speed and the corresponding solution flow.
Solution Solenoid Valve
The
Solution Solenoid Valve
opens to allow solution flow to the scrub brushes. Although the
Solution Solenoid
Valve
gets PWM voltage from the A2 Control Board, it remains full-open when the solution pump is switched
on.
Solution Manifold (disc decks only)
The
Solution Manifold
distributes the solution from the solution pump to the nozzles adjacent to the scrub
brushes.
Accessory Pump
The accessory pump is included in the optional Spray Wand Kit and pumps solution to the spray wand. The
pump has its own pressure switch that switches the pump on or off automatically when the wand trigger is
pressed or released.
