Finger meter rates, Reading the finger meter chart, Table of contents index adjustments 35 – Great Plains PD8070 Operator Manual User Manual
Page 39: Table of contents index
Great Plains Manufacturing, Inc.
Adjustments
35
2014-07-23
401-479M
Finger Meter Rates
Reading the Finger Meter Chart
Note: Actual chart is on page 36.
Images at right are excerpts.
Seed Rate: Population
1.
Find the desired seed population or seed spacing.
Seed Rate: Meter rpms
2.
Note the range of meter rpms suitable for that
population.
Inconsistent Population Risk:
The shaded rpms are the recommended rpms for most
consistent results. Use the recommended driving speed if
possible.
The unshaded rpms are acceptable.
Blank cells are outside the range of reliable meter operation.
Seed Rate: Sprocket Combinations
3.
Configure the sprockets.
The numbers in the Driver/Driven columns are the
number of teeth (T) stamped on the sprockets
required.
Seed Rate: Planting Ground Speed
4.
Observe the recommended planting speed.
For Flat Corn optimum meter spe
(Shaded area)
Transmission
11.3 kph
10.5 khp
9.7 kph
Combinations
Seed
Seed
Population Spacing
Meter
Meter
Meter
river
Driven
(seeds/ha)
( cm )
(rpm)
(rpm)
(rpm)
17
28
43 522
32.8
48
17
27
45 134
31.7
49
46
17
26
46 870
30 5
51
48
73
68
62
57
52
47
73
68
62
57
52
47
75
70
64
59
54
48
75
70
65
59
54
48
75
70
65
59
54
49
70
65
59
54
49
70
65
59
54
49
73
67
62
56
50
45
70
64
58
52
47
70
64
58
52
47
70
64
58
52
47
For Flat Corn op
(Shaded area)
Transmission
11.3 kph
10.5
Combinations
Seed
Seed
Population Spacing
Meter
M
Driver
Driven
(seeds/ha)
( cm )
(rpm)
(r
17
28
43 522
32.8
48
17
27
45 134
31.7
49
17
26
46 870
30 5
51
( Shaded & Non shaded areas )
For Flat Corn optimum meter speed is 60 to 75 RPM
(Shaded area)
Ground Speed
11.3 kph
10.5 khp
9.7 kph
8.9 kph
8 kph
7.2 kph
6.
Meter
Meter
Meter
Meter
Meter
Meter
M
(rpm)
(rpm)
(rpm)
(rpm)
(rpm)
(rpm)
(
48