Great Plains YP825AR Material Rate - Manual (Page 88)

84 YP825AR Table of Contents Metric Charts Great Plains Manufacturing, Inc.
401-923B Table of Contents Metric Charts 2013-11-11
Meter Pressurization - Metric
Meter pressurization in U.S. customary units begins on
page 5. Refer to the Operator Manual for the procedure
for fine tuning meter pressurization.
Start with pressures from below and on page 86, which
are based on crop, and for corn, seed shape and density.
Note: These are suggested initial (starting) pressures.
Adjust them up or down per the procedure in the
Operator Manual (401-651M).
Corn: Reading a Pressure Chart (below, next page)
1.
Pick the chart based on seed shape (flat, round).
Example: large round corn
2. Pick a line based on seed size (large, small).
Example: the right line below
3. Find the seed density on the bottom scale.
Example: 2800 seeds/kg
4. Read the suggested starting pressure on the left
scale, where the line (example shown as dotted
gray) intersects the density.
Example: 3.4 inches of water
Initial seed inlet Shutter for corn is: 3
Initial Meter Pressurization: Cotton
1.5 inches of water (any seed density)
Initial seed inlet Shutter: 2
Initial Meter Pressurization: Milo
1.5 inches of water (all disk, any seed density)
Initial seed inlet Shutter: 1
Initial Meter Pressurization: Soybeans
2.0 inches of water (84 cell disk, any seed density)
3.0 inches of water (168 cell disk, any seed density)
Initial seed inlet Shutter: 2
Initial Meter Pressurization: Sunflower
Disk: 817-851C SUNFLOWER OIL LARGE
18700 seeds/kg (or fewer)
18700 - 15400 s/kg
1.25 inches of water
15400 - 12100 s/kg 1.75 inches of water
12100 s/kg and fewer 2.25 inches of water
Adjust pressure as needed for desired population.
Initial seed inlet Shutter:2