Great Plains 3S-4010HDF Material Rate - Manual (Page 4)

Great Plains Mfg., Inc.
2 3S-4010HD and 3S-4010HDF
196-522B 01/29/2009
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, and rate setting/calibrating information,
is included in both the Operator’s Manual, and this sepa-
rate Seed Rate Manual. The Seed Rate manual is nor-
mally 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 18-22.5 (445/65 D22.5) NHS 16-Ply 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 pro-
cedures below, then readjust the rate as necessary.