12
Operation
Electric Motor Valves
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The electric valves consist of a master valve to
switch from bypass to pressure, section valves
for left and right spraybars which incorporate
regulating bypass compensators and an electric
pressure adjusting valve to fine tune the
spraying pressure. The compensating ports fitted
to the section valves, when adjusted correctly,
will keep the system pressure at the same level
when individual sections are turned on and off.
Pressure Adjustment
With the section switches turned Off and the
Master switch turned On maximum pressure can
be set by the Manual Pressure Regulating Valve.
A clockwise rotation increases pressure and an
anticlockwise rotation reduces pressure. If the
desired spraying pressure cannot be obtained
with the Manual Pressure Regulating knob then
by holding up the toggle switch on the control
box will close the Electric Pressure Regulating
Valve and increase the system pressure and
vice versa.
To adjust the compensation ports:
Start the sprayer and set the spray pressure with
the master On and all sections On.
Then turn off the first section and adjust the
compensation knob R1 until the pressure is
exactly the same as it was with all sections on.
Turn the section back on and off to check the
pressure remains constant.
Turn all sections on again and repeat for the
remaining sections.
The sprayer is then adjusted correctly.
Adding Chemicals
Chemicals can be added to the tank through the
top opening or, on Supaflo models, more safely
and conveniently by use of the chemical inductor.
Take care to avoid the spillage of chemicals or
mixed solution. Wear gloves, eye protection and
the recommended protective clothing whilst filling
with chemicals. Wash your hands after filling if
they have come into contact with concentrate or
mixed solution.
Store unused chemicals and dispose of empty
chemical containers as recommended by the
chemical manufacturer or relevant authority.
Adding Chemicals with the Inductor System
Supaflo Models Only
The inductor system enables either powdered or
liquid chemicals to be safely and conveniently
added to the sprayer in concentrated form and
mixed within the tank. The chemical receptacle is
located under the front lid of the tank and has a
maximum capacity of 30 litres.
The inductor valves are located at the front of the
sprayer on either side of the pump as shown
below. The “Empty” valve directs pressurised
liquid to the venturi beneath the receptacle, which
creates suction to empty the chemicals into the
tank. The “Rinse” valve directs water into the top
of the receptacle to wash any chemical residue
into the tank after filling.
Master Valve
Electric Pressure
Section Valves Regulating Valve
Manual Pressure
Regulating Valve
Before adding chemicals read and
follow the chemical
manufacturer's instructions and
wear the recommended protective
clothing.
