Finger meter planting, Reading a finger rate range chart, Contents metric rates – Great Plains YP4025F-1670 Material Rate User Manual
Page 16: Great plains manufacturing, inc, 571b

401-571B
2014-03-13
14
YP30/4010HDP/20P/25
Great Plains Manufacturing, Inc.
Finger Meter Planting
Follow the steps in “Singulated Planting Overview” on
page 2. At step 2 on page 2, follow the instructions in this
section, which are specific to finger pickup meters.
Recommended maximum speed is 6 miles per hour (11.2 kph),
based on meter rpm limits.
Excess speeds are known to deteriorate seed spacing
control and depth control.
a.
For your proposed ground speed, check that your
proposed population is within rpm limits for your 6- or
12-finger meters (this section, pages 15 and 77).
b.
Set your meter brushes for your material (page 17).
c.
If planting twin row, and indexing is desired, set the
stagger between the rows of each pair (page 19).
If you are planting indexed twin row, at “Singulated
Planting Overview” step 8 on page 3, also check the
row-to-row seed spacing in each row pair. As necessary:
d.
Adjust the stagger between pair rows using the
instructions beginning on page 22.
Reading a Finger Rate Range Chart
• Consult the chart for meter type.
• Find your row spacing. Note the range of allowed
meter rpms. Enter these limits in the seed monitor.
• Find the table rows that include your desired seed
population or seed spacing. Typically, a population is
within range in several rows.
For example, 25,000 seeds/ac is within range in four
rows.
• Note the range of ground speeds suitable for that
population.
• Enter the population in the seed monitor.
Figure 5
Finger Pickup Meter
29343
ID:
6 finger
By:
RJN
Finger Meter RPM Limits
6 Finger Meter
Seed Lubricant Required
Planting Maximum
Minimum
Planting Maximum
Minimum
Speed Population Population
Speed Population Population
(mph) (seeds/acre)(seeds/acre)
(mph) (seeds/acre)(seeds/acre)
(mph) (seeds/acre)(seeds/acre)
(mph) (seeds
Twin Row 30in
4.0
50 490
26 730
22in Rows
4.0
34 4
15in Rows
4.5
44 880
23 760
4.5
30 6
Max
Min
5.0
40 392
21 384
Max
Min
5.0
27 5
rpm
rpm
5.5
36 720
19 440
rpm
rpm
5.5
25 0
85
45
6.0
33 660
17 820
85
45
6.0
22 9
6 5
31 071
16 449
6 5
21 1
Finger Meter RPM Limits
6 Finger Meter
Seed Lubricant Requir
Planting Maximum
Minimum
Planting Maximum
Minimu
Speed Population Population
Speed Population Populati
(mph) (seeds/acre)(seeds/acre)
(mph) (seeds/acre)(seeds/ac
Twin Row 30in
4.0
50 490
26 730
22in Rows
4.0
34 425
18 225
15in Rows
4.5
44 880
23 760
4.5
30 600
16 200
Max
Min
5.0
40 392
21 384
Max
Min
5.0
27 540
14 580
rpm
rpm
5.5
36 720
19 440
rpm
rpm
5.5
25 036
13 255
85
45
6.0
33 660
17 820
85
45
6.0
22 950
12 150
6.5
31 071
16 449
6.5
21 185
11 215
Twin Row 36in
4.0
42 075
22 275
30in Rows
4.0
25 245
13 365
4.5
37 400
19 800
4.5
22 440
11 880
Max
Min
5.0
33 660
17 820
Max
Min
5.0
20 196
10 692
rpm
rpm
5.5
30 600
16 200
rpm
rpm
5.5
18 360
09 720
85
45
6.0
28 050
14 850
85
45
6.0
16 830
08 910
6.5
25 892
13 708
6.5
15 535
08 225