OPERATION
37
3. Calculate the individual nozzle output
using the following equation.
4. Set the correct pressure.
a. Replace one tip and strainer with an
identical new tip and strainer. Refer to the
application chart and locate the pressure
that will give the nozzle output calculated in
step three for the selected nozzle tip. A
Flow Rate and Application Chart for the XR
type nozzle tip is included on page 56 of
this manual.
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. Before
starting the spray application, consult your dealer if
you need more information on the nozzle tip.
NOTE: Set the agitation valve before
calibrating the sprayer. Open the valve to increase
agitation. Close the valve to reduce foaming. Do
not change the setting during sprayer calibration.
b. Start the engine. Enter the application rate
in the MT-3405 rate controller. While the
rate controller is in calibration mode, toggle
the switch to test speed. Enter the ground
speed.
CAUTION: Be sure area is clear of
bystanders, then start engine.
c. Start the sprayer pump and increase the
engine throttle to maximum. Turn on all
three boom sections and put the run/hold
switch in the “RUN” position. Do not exit
calibration mode on the rate controller.
WARNING: Operate the sprayer away
from areas frequently traveled by
family and other people.
d. Adjust the reel speed or conveyor speed
dials until the output on the nozzle pressure
gauge is equal to the pressure
recommended for the selected nozzle tip.
Allow the MT-3405 rate controller time to
adjust by spraying water through the booms
for one minute.
e.
After the nozzle pressure has been
adjusted, measure the volume output from
the new spray tip. Place a collection
container under the nozzle for one minute
and collect the output.
WARNING: Ensure other personnel
are trained properly and always wear
the same protective equipment and
take the same precautions that are required
when handling chemicals and preparing to do
an application.
The volume collected in the container must equal
the individual nozzle output calculated in step
three. Adjust the reel speed and conveyor speed
dials to fine tune the output pressure from the
nozzle to get the correct volume.
The sprayer has now been calibrated to the proper
pressure. It will deliver the proper application rate
at the desired speed.
psi
Target Pressure
USGPM
Output per Nozzle in
One Minute (E)
USGPM
Output per Nozzle (D)
5940
(C)
mph
x
(B)
Spacing
x
(A)
USGPA
USGPM
=
