Great Plains NTA2007 Operator Manual - Manual (Page 149)

2012-01-05 Table of Contents Index 166-372M
Great Plains Manufacturing, Inc. Table of Contents Index 145
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Alternate Flute Sets
The standard meter has two full-depth fluted wheels
(“stars”) and two filler rings in each meter compartment.
Alternate flute shafts are available for higher ( , ) rates
and for small seeds . These accessories replace the
existing 2-star shaft assembly with one having a
different star configuration. This provides different
seeding rates for the same Range and variable rate
gearbox setting. See “Changing Meter Flutes” on
page 168 for installation instructions.
If your seeding rates need to be higher than those listed
in the Seed Rate Manual, select one of the high rate
shafts.
• Replacing the standard 2-star shaft with a 3-star
shaft increases the seeding rate by approximately
50% (to 150% of standard rate).
• Replacing the standard 2-star shaft with a 4-star
shaft increases the seeding rate by approximately
double (to 200% of standard rate).
For small seeds (see list at right) or other seeds
substantially smaller than 12
×4.7 mm ( 1 ⁄
2
× 3 ⁄
16
inch), the
standard shaft may not provide sufficient precision and
uniform flow at very low rates. A small seeds flute
shaft
is available that provides two half-width shallow
flute stars per compartment.
• For compatible seeds, replacing the standard 2-star
shaft with the small seeds shaft reduces the
seeding rate by approximately 80 to 50% (to a net
of 20% to 50% of standard rate).
The kit required depends on the size and number of stars
desired. Order one kit per meter (two per drill if changing
both meters).
Stars per Outlet
Part
Numbers
Standard Stars: 3 per outlet 166-320S
Standard Stars: 4 per outlet 166-321S
Small Seeds Stars:
2 half-width shallow stars per Outlet
166-399S
31261
2
4
3
s
Tested Small Seeds
The 167-085B Seed Rate Manual includes data for the
166-399S and the following seeds:
• Alfalfa (Medicago sativa)
• Canola (Brassica napus L., Brassica campestris L.,
Brassica Rapa var.m)
• Millet (Pennisetum glaucum, Setaria italica,
Panicum miliaceum, Eleusine coracana)
• Milo (Sorghum)
• Orchard Grass (Dactylis glomerata)
• Timothy (Phleum pratense)
3 4
s
2
3
4
s
s
3
4
s