Material Rate Manual

Great Plains Mfg., Inc.
4
150-290B 07/08/2009
Set Seed-Rate Handle
Refer to Figure 3
The seed rate handle controls the percent engagement
of the seed sprocket in each seed cup.
1. Loosen wing nut under handle.
2. Set indicator to a scale reading 10 higher than the
value from seed rate chart, then move the handle
back to the exact chart value.
3. Tighten wing nut.
Position Seed Cup Doors
Refer to Figure 4,
which depicts the seed cup door handle in position .
At each seed box seed tube, adjust the seed cup door
handle for the seed size.
The handle has three normal operating position detents:
Note: Handle position is used for clean-out, not plant-
ing. If set to this position with seed loaded, it may be
difficult to reset it to a normal operating position.
Main Seed Row Shutoff
If alternate row spacings are desired, the unused rows
can be shut off with optional plugs (see Operator Man-
ual).
1. Clean-out seed. The seed box must be empty prior
to inserting plugs. See “Main Box Clean-Out” in
Operator Manual.
2. Insert one plug at each row to shut off. Verify the
seed hose path before inserting the plug, as some
hoses do not make a strictly vertical drop to their row
units.
3. Review seed rate settings prior to planting. Perform
calibration calculations at actual active row count.
Figure 3
Seed Rate Handle
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2
1
2
(top detent) is for the smallest seeds.
Use it for wheat and similar small seeds.
(middle detent) is for larger seeds.
Use it for soybeans and similar larger seeds.
(bottom detent) is for oversize or fragile seeds.
If you experience excessive cracking with
setting , use setting .
4
3
Figure 4
Seed Cup Door Handle
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5
2
3
4
1
2
3
2 3
5
Figure 5
Plugging 7.5in for 15in Spacing
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