Great Plains 606NT Material Rate - Manual (Page 27)

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Native Grass Rate 25
2011-10-21 Table of Contents Main Box Rates 151-122B
16. Determine which sprocket and drive type are
required for the native grass box. The sprockets are
stored on the right-hand side of the drill frame. The
drive type is set by the gearbox handle.
To change sprockets, loosen the chain idlers and
replace with desired sprocket.
Seeding Rate Risk:
Calibrate. All native grass mixes vary in weight, seed type, and
density. You must calibrate each mix.
Factors that affect seeding rates are: weight of seed, size of
seed, relative humidity and moisture content of the seed, ratio
of inert material to seed, different proportions of seed types
affecting density, tire configuration, tire pressure, and tire
slippage. The charts in this manual are based on factory tires
at recommended inflation.
Note: On older model drills, if all sprocket combinations
result in rates higher than desired, a Seed Rate
Reduction kit (202-580A) is available.
The Native Grass attachment includes, as standard
equipment, an agitator.
Equipment Damage Risk:
Do not transport with seed loaded in the Native Grass box.
Load seed at field. Transport with seed loaded compacts the
seed at the meter inlets and can easily clog agitators and
meters. Drive system operation in the field can then damage
the agitator and drive components.
Seed Lubricant
Add graphite seed lubricant after loading seed in the
Native Grass box. Use
1 ⁄
3
cup (80 mL) across the top of
the seed mix. Graphite is available as Great Plains part
numbers:
For humid planting environments, double or triple
graphite as needed.
When drilling, check the amount of seed you are using
by noting the acres drilled, amount of seed added to drill,
and the level of seed in the box. If you suspect you are
drilling more or less seed than desired, and you have
accurately calibrated the drill to your seed, change your
sprocket arrangement to compensate for your field
conditions.
821-042C 1 pound (0.45 kg) bottle
821-060C 5 pound (2.3 kg) jug
Figure 16
Sprocket Storage
25110
Figure 17
Native Grass Agitator Series II
25041