Great Plains 3PYPA Operator Manual - Manual (Page 61)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 57
03/20/2012 Table of Contents Index 401-647M
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:
5. Checking planting rate:
Although the seed monitor reports a computed popu-
lation 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.
• 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.
Null4:
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)
Null4:
Figure 64
Seed Monitor Rate Screen
29772