Great Plains YP2425A Material Rate User Manual

Page 38

YP2425A

Great Plains Manufacturing, Inc.

401-626B

2012-02-29

You need a light weight container for each row sampled,
and a scale that is accurate at the expected sample
weight. Great Plains recommends using enough rows
and/or revolutions to generate a sample of about
10 pounds (4.5 kg), ideally:

• Use at least two rows.

• Use no fewer than 5 meter revolutions.

18. Set the seed inlet shutters to 2 (see planter Operator

manual for details).

19. Select the section and rows to be sampled.

20. Use the clutches

to disconnect the other sections of

the planter.

21. Raise the planter, and install the lift cylinder

transport locks. Leave tractor hydraulic system
active.

22. Bring the hydraulic fan up to planting speed (see

planter Operator manual for details).

23. Press the Fill Disk

softkey and then the

Row Fill

softkey. This diverts all split air to seed

delivery. Remain in this mode until no more seed is
flowing to meters. Press the Work Screen
softkey to return to the main Work menu.

24. Press the Control Setup

softkey and then the

Channel Setup

softkey.

25. Press the Spreader Calibration

softkey.

26. Engage the hydraulic drive circuit.

27. Press the Fill Disk

softkey. This turns the

meters one revolution to fill the disc cells.

28. Determine the meter revolutions needed. The

following equation gives the number of meter
revolutions needed to meter 10 pounds. The tables
on page 38 provides approximate pounds (and kg)
per revolution of each wheel and seed.

29. Configure the seed monitor for the planter and crop

(material). If the seed density is not known,
use 1 lb/cu-ft or 1 lb/bu.

30. Consult the rate chart for the crop (page 38). Note

the allowed Meter RPM range for the intended seed
wheel and planting speed.

31. Place a collection bucket under each test meter’s

seed tube.

32. In the Spreader Constant Calibration screen, enter

the “# Meter Revs” and press the Start

softkey.

a. If the planter is equipped with Swath Command™, disable all but the tested rows.

For Example
4 containers each weighing:

8 oz.

8 oz x 4 = 32 oz

ContainerWeight

at step 33 on

page 37 is:

2 lbs

Moving Chain Hazard:
Shafts turn and chains move as soon as the [Start] softkey is
pressed on the seed monitor. Set up collection containers so
that they may be unattended. Keep all persons clear of the
planter while calibrating.

For example:

planter: model with 15 inch rows
crop: Hard Red Winter wheat

PoundsPerRev:

0.04

RowsSampled

ч (4 Ч 0.04) = 62.5

Enter 63 for “# Meter Revs” at step 32.

#MeterRevs

RowsSampled

PoundsPerRev

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For example:

target population: 110 lbs/ac
desired speed: 5 mph

METER RPM

12 rpm minimum, 45 rpm maximum