GREAT PLAINS Yield-Pro PL5800, Operator'S Manual

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PL5800 Planter Table of Contents Index Operation
Great Plains | 411-474M | 12/17/2019 35
Methods of rate checking are described in detail in
the Seed Rate manual. This is an overview of the
general process, which varies with the seed type and
planter meter drive type.
Before checking the rate, make sure the seed
monitor is configured with an accurate Ground
Speed Constant. the monitor may have an incorrect
default value pre-loaded.
The monitor Quick Start Guide for your planter
includes an initial value for this constant, but the
value may not be the best one for your planter, and
does not include any adjustment for tire wear over
time.
For reliable monitor reports, at the start of each
season, perform a GROUND SPEED CALIBRATION
over a 400 ft (100 m) course, as described in the
Planter/Drill Control manual. When completed and
entered in the monitor, cross-check the reported
implement speed against the tractor speedometer or
other reference.
Singulated Rate
A furrow check is the most accurate way to verify the
seeding is at the desired population value. This is
done by planting for a short distance with one or two
rows set to shallow depth and with press wheels tied
up for no furrow closure. Seeds are counted in the
furrow over as specific distance and the area rate is
computed. Refer to the Seed Rate manual for
details.
The seed monitor will also be counting the test.
Compare the results.
If the checked rate varies from the chart rate, or for
hydraulic drive from the programmed rate, it is likely
there is a seed flow problem or planter malfunction
(such as contact drive tire slippage) or a
configuration error that requires correction. Do not
calibrate to correct expected variations in singulated
rates.
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Fertilizer Rate
This is the only an overview of fertilizer rates and the
fertilizer pump. Refer to the Seed Rate manual for
details.
Agricultural Chemical Hazard
Some chemicals will cause serious burns,
lung damage, and death. Avoid contract with
skin or eyes. Avoid prolonged breathing of
chemical fumes. Wear respirator and other
protective equipment as required by chemical
manufacturer. Seek medical assistance
immediately if accident occurs. Know what to
do in case of an accident.
Fertilizer rate is controlled by pump rate. Consistent
delivery across the planter is controlled by orifice
size at the row unit drop-line points.
Consistent system operation also requires a
correctly adjusted relief valve and a well maintained
strainer ahead of the pump.
Great Plains recommends checking with your local
agronomist as soil conditions can vary. Conditions in
your area may need less or more amounts of
fertilizer than represented in the charts.
Fertilizer Ground Drive
The ground drive fertilizer option uses a piston
pump. For pump operation and pump maintenance
refer to the pump manual supplied in the liquid
fertilizer option.
The pump is driven by a ground contact wheel (1).
The fertilizer rate is independent of seed rate.
Course fertilizer rate is set by a sprocket (2) on the
ground drive. Fine rate is set by a dial (3) on the
pump. For more information, see the Seed Rate
manual.
Always disable the pump drive when not in use and
use the ground wheel lock up, if installed. Do not
operate the pump when not applying material.
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