Great Plains 2SNG30 Material Rate - Manual (Page 21)

Great Plains Manufacturing, Inc. Native Grass Planting 19
12/01/2010 202-578B
14. Divide desired rate of pounds per acre by the pounds
per shaft revolution (this is the number obtained from
step 13). Find this number (or the closest number to
this) in the drive setting chart. This will give Drive
Type and Native Grass sprocket sizes.
15. Determine which Driving and Driven sprockets
and Drive Type are required for the native grass box.
The sprockets are stored on the left-hand side
of
the drill frame. The drive type is set by ground drive
sprockets (see page 3).
To change Native Grass sprockets, loosen the chain
idlers
and remove chain.
Replace with desired sprockets.
You may want to repeat the calibration procedure if your
results vary greatly from the seed rate chart.
Note: All native grass mixes will vary in weight, seed type,
and density, so this is why you must calibrate each
mix.
Note: It is necessary to calibrate seed mix before set-
ting seed rate.
16. Set the other wing to match the wing now calibrated.
17. Re-attach the seed tubes on the tested rows. Return
the calibration crank to the storage stob of the wing
customarily used for calibration.
Note: When drilling, check the amount of seed you are
using by noting acres drilled, amount of seed add-
ed to drill, and level of seed in drill box. If you sus-
pect that you are drilling more or less than desired,
and you have accurately calibrated the drill to your
seed, you may need to adjust the seeding rate
slightly to compensate for your field conditions.
Figure 16
Native Grass Drive
26294
3
4
2
1
DRIVING
DRIVEN
1 2
3
4