Great Plains YP2425A Material Rate User Manual
Page 57
Great Plains Manufacturing, Inc.
Table of Contents Metric Charts
Appendix B - Metric Charts
55
2012-02-29
Table of Contents Metric Charts
401-626B
Metric Twin Row Sprocket Indexing (cont.)
Note: This is NOT a seed rate chart.
This is a chart for staggering seed spacing
between rows of a twin-row planter.
Verify sprocket tooth position with the top length of chain taut.
Metric Twin Row
Set front meter to tooth “1”.
Page 2 of 2
Set rear meter to indicated Initial tooth number.
Advance or Retard to adjust - see instructions in Seed Rate Manual.
These Columns are for Fine Adjustment Only
Population Seeds/ha
Initial Rear
20% Rear Seed Drop Adjust
40% Rear Seed Drop Adjust
76.2cm
91.4cm
96.5cm
101.6cm
Tooth Number
Retard
Advance
Retard
Advance
76 600
63 825
60 465
57 450
9
10
6
4
3
77 835
64 863
61 453
58 389
17
14
1
4
18
79 071
65 901
62 417
59 303
17
14
2
11
18
80 306
66 914
63 405
60 242
5
14
2
8
18
81 542
67 952
64 369
61 156
5
18
5
8
14
82 777
68 989
65 357
62 095
2
18
17
15
14
84 013
70 002
66 321
63 010
1
18
17
12
14
85 248
71 040
67 309
63 949
1
3
9
12
14
86 484
72 078
68 273
64 863
6
3
9
19
10
87 719
73 091
69 261
65 802
6
3
13
19
10
88 955
74 129
70 225
66 716
10
7
13
16
10
90 190
75 167
71 213
67 655
10
7
13
4
6
91 426
76 180
72 177
68 569
10
7
9
4
6
92 661
77 218
73 165
69 508
14
11
17
4
1
93 897
78 255
74 129
70 423
14
11
17
8
2
95 132
79 269
75 093
71 362
14
11
5
8
2
96 368
80 306
76 081
72 276
18
11
2
8
5
97 603
81 344
77 045
73 215
18
15
2
12
17
98 839
82 357
78 033
74 129
18
15
1
12
17
100 074
83 395
78 997
75 068
3
15
1
12
9
101 310
84 433
79 985
75 982
3
19
6
16
9
102 545
85 446
80 949
76 921
3
19
6
16
13
103 781
86 484
81 937
77 835
7
19
10
16
13
105 016
87 522
82 901
78 774
7
4
10
16
13
106 252
88 525
83 889
79 689
7
4
10
16
9
107 487
89 573
84 853
80 628
11
4
14
16
17
108 723
90 610
85 841
81 542
11
8
14
16
17
109 958
91 623
86 805
82 481
11
8
14
16
5
111 193
92 661
87 793
83 395
15
8
18
16
2
29846D
Air-Pro
®
Meter Stagger Timing Chart