Great Plains 1006NT Material Rate - Manual (Page 27)

Great Plains Mfg., Inc.
25
04/20/2007 150-287B
11. Rotate gauge wheel or calibration crank one acre.
See table at right for revolutions per acre.
Note: You can also rotate the gauge wheel jackshaft by
means of a wrench or socket. If rotating gauge
wheel jackshaft, disengage the lockout on the
drive wheel and use same number of rotations as
for rotating drive wheel.
12. Check that the three seed cups have plenty of
seed coming into them.
13. Weight metered seed. Subtract initial weight of
container. Divide by three. Multiply by the number
of openers on the drill to determine total pounds
seeded per acre. If this figure is different than
desired, change your sprockets and drive type
accordingly.
Note: You may want to repeat the calibration procedure
if your results vary greatly from seed rate chart.
IMPORTANT !
The chart on page 26 is to be used as a reference
to your own brome grass mix. All brome grass
mixes vary so this is why you must calibrate each
mix using the chart only as a starting point.
14. 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, you may need to change
your sprocket arrangement to compensate for your
field conditions.
Factors which will affect seeding rates are: weight of
seed, size of seed, relative humidity and moisture con-
tent of seed, ratio of inert material to seed, different
proportions of seed types affecting density, tire config-
uration, tire pressure, and tire slippage.
All seed mixes will vary.
The rates are based on 9.00 x 24 8-Ply tires.
Drill
Model
Revolutions for One
Acre Hectare
706NT 595 1470
1006NT 411 1016
MeasuredSeed EmptyContainer –
3
---------------------------------------------------------------------------------- PoundsPerSeedCup =
PoundsPerSeedCup NumberOfOpeners × PoundsPerAcre =