28
1018959-B
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OPERATION
SPEED CALIBRATION
The speed of the towing machine is
critical for an even spray application.
Become familiar with the towing
machine speed, by measuring off a
distance of 50 or 100 feet.
The speed of the vehicle can be
calibrated by selecting a gear and
throttle position to cover the prescribed
distance in the specified time as
shown:
Speed
50
100
(mph)
feet
feet
2
17
34
3
11
22
4
9
17
5
7
14
Seconds Required
to Travel
70” Spray Width
12”
Spray
Overlap
12”
Spray
Overlap
The sprayer has
an effective spray
width of 70”.
The spray overlap
width is 12” per
side.
The effective spray width
is the is the true spray
width that does NOT need
to be overlapped during
passes.
(
So each pass
through your lawn
should be 70”
).
SPRAY WIDTH
APPLICATION RATE
This table gives the application rate of the boom nozzles at
various speeds. Depending on the number of gallons in the tank,
choose a speed that will match the coverage area given on the
chemical label.
Chemical labels normally show application rates in gallons per
acre or gallons per square feet. Using the following method, one
can determine the appropriate amount of water to use and speed
to travel to adequately follow the manufacturer’s recommended
instructions.
TABLE 1
Application
Max Area
Speed
Rate Gallons
Covered with
(mph)
/ 1000 ft
2
15 Gallons / ft
2
2
. . . . . . . . . . 0.76
19,853
3
. . . . . . . . . . 0.50
29,779
4
. . . . . . . . . . 0.38
39,706
5
. . . . . . . . . . 0.30
49,632
English Manual
