185
SPRAY OPERATING PROCEDURES
9. Put on required PPE.
10. Fill the pesticide tank with the required amount of
pesticide. Replace the tank cap, ensuring that the o-
ring is in place.
11. Ensure the pesticide remote control valve is off or
the manual valve at the spray nozzle is closed.
12. Restart engine and allow it to warm up. Set throttle
to achieve the desired air pressure (normally 60-90
PSI).
13. Check for improper air pressure. Air pressure is
factory set with throttle control in FAST position. If
air pressure is incorrect, check for air leaks at all
joints between air pump and outlet of aerosol nozzle
assembly. Check for loose or slipping belts, ½”-
3
/
4
”
deflection. Check for proper engine RPM.
14. Open the pesticide control valve toggle switch on
remote or manual valve at spray nozzle to start the
flow of pesticide. Flow Rates – The formulation flow
rate is controlled by a metering orifice located in the
fitting at the top of the formulation tank. To remove
or change an orifice disc, use two (2)
13
/
16
” wrenches
(one to hold the tank fitting, and the other to unscrew
filter/orifice chamber nuts). Note: It is easier if you
first remove the pesticide line at the tank fitting.
AIR PRESSURES
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