13
CHAPTER 4 - OPERA
TION AND ADJUSTMENTS
J-600 ELECTRIC
Calibrating the sprayer (practical method)
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Calibrating the sprayer through a pratical method
Before calibrating the sprayer be sure:
∙
suction filter is clean.
∙
hoses are not twisted or bored.
∙
pressure regulator components (valve seat, valve
and spring) are not worn or dirty.
∙
pump is properly lubricated (oil level and grease)
and has no leakage.
∙
nozzles are of the same model, not worn, with
correct flow rate and with clean strainers.
ONCE ALL THE ITEMS CHECKED, START THE
SPRAYER CALIBRATION.
1 - Mark off 164 foots on the ground to be sprayer.
2 - Fill up the sprayer.
3 - Start moving at least 16.4 feets before the initial
mark.
4 - Engage the PTO at 540 rpm.
5 - Choose the working gear.
6 - Through the Masterflow valve, turn the spraying
on.
7 - When the machine pass the first mark, start the
stopwatch.
8 - When the machine pass through the second
mark, stop the stopwatch.
9 - Note the time it takes the tractor to move 164
feets.
10 - On irregular ground, repeat this operation
several times and take the average.
11 - Measure the application swath.
12 - With the sprayer parked on a flat surface, pre-
ference the same place where it was filled, com-
plete the tank and measure the spent volume.
13 - Calculate the spray volume gallons per acre,
through the formula:
GPA = Vol x 43560
A
Where:
GPA = spray volume (gallons per acre)
Vol = volume spent in the sprayed area
A = sprayed area (164 ft x spray swath (f) = ft
2
)
Example:
Vol = 5 gallons
A = 164 ft x 65 ft (s) = 10660 ft
2
GPA = 5 x 43560 GPA = 20.4
10660
ATTENTION!
When the desirable volume is not
reach, increase or decrease the flow,
through the valve, or increase or
decrease the speed.
To increase or decrease the speed
change gear.
16.4ft 0ft
164ft
f
ft
2
164 ft
f
164 ft