Controllers - AGCO Parts

Spray tips don’t last forever!
Too many growers are losing
thousands of dollars for the sake of
a small investment in the routine
replacement of spray tips.
Measuring Travel Speed
Measure a test course in the area to be sprayed or in an area with
similar surface conditions. Minimum lengths of 100 and 200 feet are
recommended for measuring speeds up to 5 and 10 MPH, respectively.
Determine the time required to travel the test course. To help
insure accuracy, conduct the speed check with a loaded sprayer
and select the engine throttle setting and gear that will be used
when spraying. Repeat the above process and average the times
that were measured. Use the following equation or the table below
to determine ground speed.
Distance (ft.) x 60
Speed (MPH) =
Time (seconds) x 88
Speed in MPH
(Miles Per Hour)
Useful Formulas
GPM — Gallons Per Minute
GPA — Gallons Per Acre
MPH — Miles Per Hour
Time Required in SECONDS to travel a
Distance of:
100 feet 200 feet 300 feet
3.0 23 45 68
3.5 20 39 58
4.0 17 34 51
4.5 15 30 45
5.0 14 27 41
6.0 — 23 34
7.0 — 19 29
7.5 — 18 27
8.0 — 17 26
9.0 — 15 23
GPA = 5940 x GPM (Per Nozzle)
MPH x W
W — Nozzle spacing (in inches) for broadcast spraying
— Spray width (in inches) for single nozzles, band
spraying or boomless spraying.
— Row spacing (in inches) divided by the number of
nozzles per row for directed spraying.
Suggested Minimum Spray Heights
GPM
=
(Per Nozzle)
Nozzle Height
GPA x MPH x W
5940
Nozzle Type Spray 20" 30" 40"
Angle Spacing Spacing Spacing
TeeJet (Flat Spray) 65˚ 22-24" 33-35" NR*
TeeJet, XR TeeJet 80˚ 17-19" 26-28" NR*
TeeJet, XR TeeJet 110˚ 15-18" 20-22" NR*
FullJet 120˚ 10-18"** 14-18"** 14-18"**
FloodJet 120˚ *** *** ***
Turbo TeeJet 110˚ 15-18" 20-22" NR*
Turbo FloodJet 120˚ 14-16" 15-17" 18-20"
* Not recommended.
** Nozzle height based on 30˚ to 45˚ angle of orientation.
*** Wide-angle spray tip height is influenced by nozzle orientation.
The critical factor is to achieve a double spray pattern overlap.
Nozzle Spacing
If the nozzle spacing on your boom is different than those tabulated,
multiply the tabulated GPA coverages by one of the following
factors.
Where Tables Are Based on 20" Nozzle Spacing
Other Spacing 8" 10" 12" 14" 16" 18" 22" 24" 30"
Conversion Factor 2.5 2 1.67 1.43 1.25 1.11 .91 .83 .66
Where Tables Are Based on 30" Nozzle Spacing
Other Spacing 26" 28" 32" 34" 36" 38" 40" 42" 44"
Conversion Factor 1.15 1.07 .94 .88 .83 .79 .75 .71 .68
Where Tables Are Based on 40" Nozzle Spacing
Other Spacing 28" 30" 32" 34" 36" 38" 42" 44" 48"
Conversion Factor 1.43 1.33 1.25 1.18 1.11 1.05 .95 .91 .83
Spraying Solutions Other Than Water
Since all the tabulations are based on spraying water, which weighs
8.34 lbs. per USA gallon, conversion factors must be used when
spraying solutions which are heavier or lighter than water. To
determine the proper size nozzle for the solution to be sprayed, first
multiply the desired GPM or GPA of solution by the water rate
conversion factor. Then use the new converted GPM or GPA rate
to select the proper size nozzle.
Example: Desired application rate is 20 GPA of 28%N. Determine
the correct nozzle size as follows:
GPA (solution) x Conv. Factor = GPA (from table in catalog)
20 GPA (28%) x 1.13 = 22.6 GPA (water)
The applicator should choose a nozzle size that will supply 22.6
GPA of water at the desired pressure.
Specific Conversion
Weight of Solution Gravity Factors
7.0 lbs. per gallon .84 .92
8.0 lbs. per gallon .96 .98
8.34 lbs. per gallon — WATER 1.00 1.00
9.0 lbs. per gallon 1.08 1.04
10.0 lbs. per gallon 1.20 1.10
10.65 lbs. per gallon — 28% nitrogen 1.28 1.13
11.0 lbs. per gallon 1.32 1.15
12.0 lbs. per gallon 1.44 1.20
14.0 lbs. per gallon 1.68 1.30
Technical Pages
Please Note: For a complete AGCO part number; please add AG to the front of the six digit number.
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