Great Plains 2SNG30 Material Rate - Manual (Page 4)

202-499B 8/17/2006
Great Plains Mfg., Inc. 4
Drive Types
10732
h. Weigh metered seed. Subtract initial
weight of empty container. Divide by
three. Multiply by the number of openers
on your drill for pounds-per-acre seeding
rate. If this figure is different than desired,
adjust seed-rate handle and recheck rate.
Note: Repeat steps (a) through (h) for each drill
section.
8. You may want to repeat the calibration proce-
dure if your results vary greatly from the seed
rate charts.
Note: When drilling, check the amount of seed you
are using by noting acres drilled, amount of seed
added to drill, and level of seed in drill box. If you
suspect that you are drilling more or less than de-
sired, and you have accurately calibrated the drill
to your seed, you may need to adjust the seeding
rate slightly to compensate for your field condi-
tions.
9. When not in use, store calibration crank in out
of way location on main frame as shown.
Refer to Figure 2
Note: This drill is equipped with four-position feed
cup door on each feed cup. The highest handle po-
sition is for wheat and other small grain seeds, the
second handle position is for soybean and other
large grain seeds. Should excessive cracking oc-
cur to the large seeds, drop the handle to the third
position. The wide-open position will allow com-
plete clean out of the feed cup. Make sure all han-
dles are in the same position before drilling.
Note: Do not open the cup up to the wide-open po-
sition with seed in the box unless complete clean
out is desired.
Figure 2
Seed Cup Handle Adjustment
13867
Equations for calibrating seed rate:
measured seed empty container –
3 (number of seed cups measured)
---------------------------------------------------------------------------------------------- pounds per seed cup =
pounds per seed cup number of openers × pounds per acre =
23468
2SNG Calibration Crank Storage