Great Plains NTA3007 Operator Manual - Manual (Page 162)

158 NTA907 or NTA3007 Table of Contents Index Great Plains Manufacturing, Inc.
166-371M Table of Contents Index 2012-07-02
Alternate Flute Sets
The NTA907 and NTA3007 seed meters have standard
shafts
with two deep fluted wheels (“stars”) and two
filler rings in each active 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 185 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 20% 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 168-401S
Standard Stars: 4 per outlet 168-402S
Small Seeds Stars:
2 half-width shallow stars per Outlet
168-438S
32398
2
4
3
s
Tested Small Seeds
The 167-085B Seed Rate Manual includes data for the
168-438S 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)
2
3 4
s
2
3
4
s
s
3
4
s