Great-plains TSF1290 Operator Manual User Manual Page 37

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Great Plains Manufacturing, Inc. Preparation and Setup 33
05/10/2012 500-641M
Sprayer Calibration
Sprayer calibration prepares your sprayer for operation
and diagnoses nozzle wear. This gives you optimum per-
formance from your nozzles and ensures accurate appli-
cation.
Equipment that may be needed:
Calibration Container
Great Plains Nozzle Tip Calculator:
832-038C - U.S. customary units (English), or
832-058C - Metric (English/Russian legends)
General calculator
Stopwatch or wristwatch with second hand.
Speed Calibration
Current TSF1080, TSF1090, TSF1280 & TSF1290
sprayers include a Raven SCS 450 controller as stan-
dard equipment, and the SCS 450 requires a speed
sensing input, a new or existing wheel sensor or radar.
For a sprayer with the Raven SCS440 controller, perform
the speed calibration procedure from the Raven SCS
450 manual, then resume at “Rate Calibration” on page
34 in this manual.
For a sprayer without a Raven controller, use the follow-
ing steps.
1. Measure off a 200 foot (or 100 meter) course in the
area to be sprayed or in an area with similar surface
conditions.
2. Select the engine throttle setting and gear that will
be used when spraying. Allow ample approach dis-
tance to starting point so that tractor is at desired
speed at start marker. Allow ample overrun area so
that braking is not needed until exiting the course.
3. Hold the speed as you approach the “start” marker,
and check the time required to travel through the
course to the “end” marker.
4. Repeat the above procedure, and average the times
that were recorded. Use these equations to deter-
mine the trial ground speed.
27165
Example:
27 seconds over a 200 ft course
Speed was: 5.05 mph
200 60×
27 88×
-------------------
5.05=
TrialMPH
CourseFeet 60×
ElapsedSeconds 88×
-------------------------------------------------
=
TrialKPH
CourseMeters 3.6×
ElapsedSeconds
----------------------------------------------
=
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