Great Plains EWNT7 1523Q-1630Q Operator Manual - Manual (Page 15)

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13 4/25/06 Great Plains Mfg., Inc.
Section 4 Adjustments
EWNT7 and EWNT10 End Wheel No Till Drill 150-082M-A
Seed-Cup-Door Handle
Figure 4-6
Check Seeding Rate
1.
Hydraulically lower the drill to planting position to ac-
tivate clutch.
2. Check that your tires are 9.0 x 24 rib implement and
properly inflated. Refer to "Tire Inflation Chart," on
page 6.
3. Jack the drive (left) end wheel off the ground. Rotate
the wheel to see that the drive system is working
properly and seed cups are free from foreign mate-
rial.
4. Record the weight of an empty container large
enough to hold the seed metered for one acre.
5. Place several pounds of seed over three seed cups
on an outside end of the drill box. Pull the seed
tubes off of these three openers.
6. Turn drive end wheel several times to fill seed-cups
with seed. Turn wheel until seed falls to the ground
from each cup.
7. Place container under the three tubes to gather me-
tered seed.
8. Rotate the drive wheel until one acre has been tal-
lied on the acremeter. This will be 592 rotations on a
7-foot drill or 422 rotations on a 10-foot drill. Check
that the three seed cups have plenty of seed coming
into them.
9. Weigh the metered seed. Subtract the initial weight
of the container. Divide by three. Multiply by the
number of openers on your drill to determine total
pounds-per-acre seeded. If this figure is different
than desired, reset sprockets accordingly.
NOTE: You may want to repeat the calibration procedure
if your results vary greatly from the seed-rate chart.
10. When drilling, check the rate by noting acres drilled,
amount of seed added to drill and seed level in drill
box. If you are seeding more or less than desired,
adjust the rate slightly to compensate for field condi-
tions.
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