Great Plains 2S-2600HDF Operator Manual v2 - Manual (Page 51)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 47
2014-02-03 Table of Contents Index 195-069M
Setting Main Box Seed Rate
Accurately obtaining the desired seed population
requires four steps:
1. Setting Drive Type sprockets (from chart)
2. Setting initial Seed Rate Handle (from chart)
3. Positioning Seed Cup Door (by seed type)
4. Calibration: checking actual seeding rate
Seed rate charts are found in a separate Seed Rate
Manual (which is normally stored in a weatherproof
holder on the drill, for field reference). The charts list
proper sprocket pairings and seed-rate-handle settings
for various seeds and seeding rates.
The seed-rate charts are based on cleaned, untreated
seed of average size and test weight. The charts are
based on 9.5Lx15 6-ply Rib Implement gauge wheel tires
and 11Lx15 12-ply Rib Implement transport tires, inflated
to factory specification. Many factors will affect seeding
rates including foreign material, seed treatment, seed
size, seed weight, field conditions, tire pressure and test
weight. Minor adjustments are commonly required. Set
and check the seeding rate using the procedures below,
then readjust the rate as necessary.
°