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CHEMICAL APPLICATION AND OPERATING VARIABLES
2. Ground Speed
Chosen ground speed often depends on
the terrain which the machine is being operated.
The sprayer should not be operated at ground
speeds that are not within reason for the safety
and comfort of the operator. Erratic driving such
as quickly accelerating and decelerating within a
wide range of speeds will result in poor chemical
application.
NOTE:
The
Windrower has a maximum operating speed of 9
mph (14.5 km/h) when the two speed range
transmission is shifted in the FIELD position (refer
to
the
Self-Propelled
Manual for identification and instructions on the
variable speed control lever and speed-range
control).
When the type of chemical to be applied is
chosen, the manufacturer of the chemical directs
the application rate. The operator must choose
the ground speed for application considering both
a) nozzle type to be used and b) surface
conditions as they relate to operator safety and
comfort.
During calibration of the MT-3405 monitor
(refer to the section on Calibration of the MT-3405
Operator's Manual), the operator programs the
MT-3405 rate controller for the desired application
rate at the chosen ground speed. The MT-3405
rate controller adjusts the application rate "on-the-
go" when the tractor speed is varied.
DICKEY-john Radar Velocity sensor installed on
the sprayer will give true ground speed information
to the MT-3405 rate controller during chemical
application.
The MacDon Field Sprayer has a 90-foot boom
width for chemical application. The chart below
shows the area that can be sprayed per hour with
the sprayer for a range of ground speeds. The
actual area sprayed in the field will depend on a)
the application rate, b) tank size, and c) field
efficiency.
NOTE:
Remember
application
ground
speed
chemical application rate, the nozzle type, and the
surface conditions. Operate your machinery at a
safe and comfortable speed.
MacDon
Self-Propelled
Windrower
Operator's
The
to
choose
your
according
to
the
180
160
140
120
100
80
60
40
20
0
0
2
54
4
6
8
10
12
GROUND SPEED (mph)
14
16
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