18
Open the Handler drain valve. The venturi will educt the
chemical into the return line.
Once the chemical jug is empty, and before removing the
jug from the knife, open the jug rinse valve. Close the jug
rinse valve before removing jug.
Open the Handler rinse valve for several seconds to rinse
out any chemical concentrate.
Once the Handler tank
is empty, close the Handler drain valve to prevent
backflow of solution through the tank agitator valve.
Continue to circulate the solution for several minutes with
the return and agitation valves open. Close the return valve
before beginning spraying operations.
Raise and secure the Handler into the transport position
when mixing operations are complete.
Sprayer Operation
Agitation and Return Lines
The trailer sprayers are equipped with an agitator and
a return line to aid in mixing chemical and keeping it in
suspension. The agitator valve should be open for most
spraying and mixing operations to keep the chemical in
suspension.
The return valve should be opened to mix large volumes of
chemical such as when the tank is refilled. The return valve
should be closed completely or open just slightly when
spraying. An open return valve will not allow the boom to
reach operating pressure.
Figure C16
Open Agitation And Return Valves To Mix Chemical
Figure C14
Rinsing Empty Chemical Jug
Figure C15
Rinsing Handler Tank
< Rinse Nozzle
Figure C17
Agitator and Return Inside Tank
< Anti-V
ortex
Drain
< Agitator
Return>
< Open Agitator Valve
< Open Return Valve
< Open Main
Valve
Summary of Contents for Spray Wyng II
Page 4: ... ...