Table of contents index, Great plains manufacturing, inc – Great Plains 3N-4025P Operator Manual User Manual
Page 69
Great Plains Manufacturing, Inc.
Hydraulic Drive Operation
65
2014-01-29
196-538M
Seeding Range, 30 Inch Twin Row, 6 Finger Meter (1 of 2)
Twin Row 30”
For Round Corn optimum meter speed is 45 to 75 RPM
For Flat Corn optimum meter speed is 65 to 75 RPM ( Shaded Area)
Ground Speed
Calibration Number
995
High Range
Sprockets Combination
Seed
Population
(seeds/acre)
Seed
Spacing
(inches)
7 mph
6.5 mph
6 mph
5.5 mph
5 mph
4.5 mph
4 mph
3.5 mph
Motor
Driver
Mainshaft
Driven
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
Optimum
Meter
(rpm)
21T
17T
13,306
31.4
13,799
30.3
14,330
29.2
14,872
28.1
14,903
28.1
15,423
27.1
45
15,524
26.9
46
16,016
26.1
47
16,199
25.8
48
16,657
25.1
49
46
17,351
24.1
51
47
18,003
23.2
53
49
45
18,105
23.1
53
50
46
Not Recommended
18,670
22.4
55
51
47
18,786
22.3
55
51
47
19,388
21.6
57
53
49
45
19,481
21.5
57
53
49
45
19,568
21.4
58
54
49
45
19,609
21.3
58
54
50
45
20,163
20.7
59
55
51
47
20,231
20.7
60
55
51
47
20,293
20.6
60
56
51
47
20,351
20.5
60
56
51
47
21,003
19.9
62
57
53
49
21,040
19.9
62
58
53
49
21,074
19.8
62
58
53
49
21,105
19.8
62
58
53
49
21,134
19.8
62
58
53
49
21,916
19.1
65
60
55
51
46
22,728
18.4
67
62
57
53
48
22,759
18.4
67
62
57
53
48
22,793
18.3
67
62
58
53
48
22,830
18.3
67
62
58
53
48
22,869
18.3
67
63
58
53
48
23,602
17.7
70
65
60
55
50
45
23,670
17.7
70
65
60
55
50
45
23,743
17.6
70
65
60
55
50
45
23,822
17.6
70
65
60
55
50
45
24,495
17.1
72
67
62
57
52
46
24,546
17.0
72
67
62
57
52
46
24,656
17.0
73
67
62
57
52
47
24,775
16.9
73
68
63
57
52
47
25,569
16.4
75
70
65
59
54
48
25,728
16.3
70
65
60
54
49
26,530
15.8
73
67
61
56
50
45
26,681
15.7
73
67
62
56
51
45
27,684
15.1
70
64
58
52
47
28,837
14.5
73
67
61
55
49
29,652
14.1
75
69
62
56
50
29,991
13.9
69
63
57
50
30,941
13.5
72
65
59
52
46
31,144
13.4
72
66
59
52
46
32,230
13.0
75
68
61
54
47
32,298
12.9
Not Recommended
75
68
61
54
48
33,519
12.5
71
63
56
49
34,809
12.0
73
66
59
51
36,098
11.6
68
61
53
34196