Great Plains 2510HDF Material Rate - Manual (Page 5)

10/19/2010 288-340B
Great Plains Manufacturing, Inc. Main Box Seed Rate 3
Main Box Seed Rate
Main seed box planting rate is controlled by:
• Drive Type sprocket set
• Seed Rate handle setting
• Seed Cup door setting
Before setting the rate, raise the drill and rotate gauge
wheels. Check that seed meters, seed tubes and drives
are working properly and are free from foreign material.
The procedure for setting the main box rate is:
1. Consult chart for your crop in the Seed Rate manual.
Note initial Drive Type and Rate Handle settings.
2. Configure Drive Type and Seed Rate handle on one
or both sides of the drill.
3. Set the Seed Cup doors per advice on page 4.
4. Calibrate the drill for your specific seed.
5. Set both gauge wheels and rate handles identically.
Drive Type
Before setting the Drive Type, rotate the gauge wheels.
Check that seed meters, seed tubes and drives are work-
ing properly and free from foreign material.
Refer to Figure 1
1.
Consult the rate charts in the Seed Rate manual,
and determine the Drive Type required. If there are
multiple choices (different Drive Types) for the same
seed population, choose the one that has a rate han-
dle setting closest to 50.
2. These Types correspond to the following pairings of
Driving
and Driven sprockets mounted on the
right side of the gauge wheel assembly.
If the Drive Type needs to be changed:
3. Loosen idlers and remove chain . Remove
retaining pins at shafts and at storage tower shaft .
Drive
Type
Driving
Sprocket
Driven
Sprocket Coarse
Speed
1 14 44 Slowest
2 24 36 2.1x
3 24 24 3.1x
4 24 15 5.0x
Note: Many factors affect seeding rates: seed treatment,
weight of seed, size of seed, surface condition of
seed, tire configuration, tire pressure and tire slip-
page. Minor adjustments may be needed to com-
pensate for these factors.
Figure 1
Drive Type Sprockets
27222
DRIVING
DRIVEN
1
2
6
3
4
5
1 2
1 2
3 4
6