Great Plains
| 401-647M | 2019-06-11
Table of Contents
Index
60
3PYPA
Table of Contents
Index
Adjustments
Setting Material Rates
Planting Rate
Adjusting the planting rate requires the following:
1. Preparing rows:
Correct seed disk selection is required for correct
rate. Meter shutter setting and meter pressurization
adjustments assure the rate. See the SRM.
2. Monitor configuration:
The seed monitor must be set up with the correct
row count, row spacing and disk cell count. See the
Seed Rate Manual (SRM) and the DICKEY-john
®
Planter/Drill Control (PDC) manual.
3. Ground speed calibration:
Seed monitor rate control and reporting is only as
accurate as the speed reported by the radar. See the
PDC manual.
4. Setting seed rate, based on drive type:
•
Hydraulic Drive:
Check, in the Seed Rate manual, that the intended
population and planting speed are within range for
the seed disk. Enter the rate on the console.
•
Ground Drive:
Check, in the Seed Rate manual, that the intended
population and planting speed are within range for
the seed disk. Per the Seed Rate manual, select and
install the Range, Transmission and Upper drive
sprockets that provide that rate.
5. Checking planting rate:
Although the seed monitor reports a computed
population based on seeds sensed, only an actual
furrow check provides certainty about the actual
seeding rate. See the SRM.
Hydraulic Drive Rate
Entering a specific rate, and increment/decrement limits,
is done via the Material Setup screens, which require
User Level 2 privileges. See the PDC User Level 2/3
manual.
Area-specific mapped rates may be loaded via SD card
from compatible third-party farm prescription software
applications. Consult the software supplier documents.
Once set, an operator at User Level 1 may adjust the
rate from the main work screen. See the PDC User
Level 1 manual.
Population and Equipment Wear Risks:
For ground drive, perform identical setups on each of the two
gauge wheel drives. Any differences can cause unpredictable
seed rate and excess clutch wear.
Seed
Rate
Control
Planter Drive Type
Contact
Hydraulic
Coarse
Range Sprockets
(see
Seed Rate Manual
)
Seed Monitor
Console Data
Entry
(see Monitor
Manual)
Fine
Upper, Transmission
Drive Sprockets
(see
Seed Rate Manual
)
Figure 68
Seed Monitor Rate Screen
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