Table of contents index, Great plains manufacturing, inc – Great Plains 3N-4025P Operator Manual User Manual
Page 74
70
3N-40P
Great Plains Manufacturing, Inc.
196-538M
2014-01-29
Seeding Range, 30 Rows, 12 Finger Meter (1 of 2)
30” Row Spacing
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
19,960
10.5
59
55
50
46
20,699
10.1
61
57
52
48
Not Recommended
21,495
9.7
63
59
54
50
45
22,308
9.4
66
61
56
52
47
22,355
9.4
66
61
56
52
47
23,134
9.0
68
63
58
54
49
23,286
9.0
69
64
59
54
49
24,024
8.7
71
66
61
56
51
45
24,299
8.6
72
66
61
56
51
46
24,985
8.4
74
68
63
58
53
47
26,026
8.0
71
66
60
55
49
27,004
7.7
74
68
63
57
51
45
27,157
7.7
74
69
63
57
51
46
28,004
7.5
71
65
59
53
47
28,178
7.4
71
65
59
53
47
29,082
7.2
73
67
61
55
49
29,222
7.2
74
68
61
55
49
29,352
7.1
74
68
62
56
49
29,414
7.1
74
68
62
56
50
30,245
6.9
70
64
57
51
45
30,346
6.9
70
64
57
51
45
30,440
6.9
70
64
58
51
45
30,527
6.8
71
64
58
51
45
31,505
6.6
73
66
60
53
46
31,560
6.6
73
66
60
53
46
31,610
6.6
73
67
60
53
47
31,657
6.6
73
67
60
53
47
31,701
6.6
73
67
60
53
47
32,875
6.4
69
62
55
48
34,092
6.1
72
65
57
50
34,139
6.1
72
65
57
50
34,190
6.1
72
65
58
50
34,245
6.1
72
65
58
50
34,304
6.1
72
65
58
51
35,404
5.9
75
67
60
52
35,505
5.9
75
67
60
52
35,614
5.9
75
67
60
52
35,733
5.9
75
68
60
53
36,742
5.7
70
62
54
36,820
5.7
70
62
54
36,984
5.7
70
62
54
37,163
5.6
70
63
55
38,354
5.5
73
65
56
38,592
5.4
73
65
57
39,796
5.3
75
67
59
40,021
5.2
67
59
41,526
d
e
d
n
e
m
m
o
c
e
R
t
o
N
0
.
5
70
61
43,256
4.8
73
64
44,478
4.7
75
66
44,986
4.6
66
46,411
4.5
68
46,717
4.5
69
48,345
4.3
71
48,447
4.3
71
50,279
4.2
74
52,213
4.0
54,147
3.9
34201