Great Plains TSF1260 Operator Manual - Manual (Page 35)

Great Plains Manufacturing, Inc. Preparation and Setup 31
01/12/2012 500-642M
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 (see page 73 for replacement
part numbers)
• 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 TSF1060 and TSF1260 sprayers include a
Raven SCS 440 controller as standard equipment, and
the SCS 440 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
440 manual, then resume at “Rate Calibration” on page
32 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 Ч
27 88 Ч
------------------- 5.05
=
TrialMPH
CourseFeet
60 ×
ElapsedSeconds
88 ×
-------------------------------------------------
=
TrialKPH
CourseMeters
3.6 ×
ElapsedSeconds
----------------------------------------------
=