Selecting The Nozzle Tip - MacDon 625 Operator's Manual

CHEMICAL APPLICATION AND OPERATING VARIABLES

3. Selecting the Nozzle Tip

Extended Range 80-02 TeeJet Nozzles are
supplied with the MacDon
Attachment. TeeJet triple nozzle bodies are
installed on the sprayer to allow the sprayer to be
used for a wide variety of applications. This is a
guideline for you to follow if you use different
nozzle tips for different applications.
The nozzle tip that is selected will depend on the
application rate recommended by the chemical
manufacturer, the ground speed, nozzle spacing,
desired spray pattern and output, the boom height,
output pressure. An application chart is used to
select the nozzle tip that will output the desired
application rate or flow rate at different ground
speeds and output pressures. A Flow Rate and
Application Chart for the XR type nozzle tip is
included on page 56 of this manual.
The application chart is only a guide. Varying field
and crop conditions will affect actual application.
The amount of spray solution applied per acre
depends upon forward speed, size and condition
of nozzles, nozzle spacing, and pump pressure. A
variation in any of these will change the application
rate.
Use the following procedure when referring to the
application chart for initial speed, nozzle size and
spraying pressure selections.
a. Determine application rate - What is the
recommended rate of application specified by
the chemical manufacturer?
b. Select ground speed - Refer to page 54 of this
manual when choosing the ground speed.
c. Find the desired application rate on the
chart - Refer to the application chart and locate
the desired application rate in the speed column
closest to the chosen ground speed selection
for different nozzle tips and pressures.
d. Select the nozzle tip to be used - The nozzle
tip selected will depend on the nozzle spacing,
output pressure, and speed of travel to obtain
the desired application rate.
pressure will be adjusted slightly by the rate
controller to obtain the exact application rate.
To choose a different output pressure at the
Field Sprayer recommended application rate listed in the chart,
select a different ground speed or nozzle tip.
e. Use the procedures in the MT-3405 Operator's
A TeeJet catalogue is supplied with your MacDon
Field Sprayer Manuals. It includes the descriptions
for a variety of nozzle types that can be used with
the MacDon Field Sprayer. Refer to the TeeJet
catalogue if the application rate, ground speed, and
output pressure you calculated are in metric units
to select the correct nozzle tip.
with a variable rate controller.
The spray
55
Manual (refer to the Pre-Field System Check) to
"fine tune" and calibrate your spray system.
NOTE: Select a nozzle tip that is ideal for use