Great Plains NTA2007 Material Rate - Manual (Page 14)

12 Great Plains Manufacturing, Inc. Contents Appendix VRG Air Drills
167-085B Contents Appendix 2012-01-03
Changing Flute Stars
Refer to Figure 12
If the target material rate is too high or too low for the
standard meter flutes
and standard “2 Stars” charts, it
may be appropriate to use an optional flute shaft in the
meter.
The Appendix provides alternate charts for some
commonly requested seeds and rates.
“3 Stars” high rate charts provide metering rates that
are approximately 150% of standard rates.
“4 Stars” high rate charts provide metering rates that
are approximately 200% of standard rates.
“Small Seeds” charts provide metering rates that vary
between 20% and 50% of standard rates, if the seeds
are physically compatible with the narrower, shallower
Small Seeds flute pockets.
Consult the air drill or air cart Operator Manual for
ordering and installation of optional flute shafts.
If the tables do not cover your intended application, and
you have optional stars, use setup data for a physically
comparable seed, and calibrate.
Figure 12
Alternate Flute Shafts
32398
2
3
4
s
2
3
4
s