Sprocket indexing charts - metric, Metric twin row sprocket indexing – Great Plains YP825AR Material Rate User Manual
Page 91
Great Plains Manufacturing, Inc.
Appendix B - Metric Charts
87
2013-11-11
401-923B
Sprocket Indexing Charts - Metric
Metric Twin Row Sprocket Indexing
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.
Charts in U.S. customary units begin on page 19.
Twin Row
Set front meter to tooth “1”.
Page 1 of 3
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
76.2 cm
75 cm
Tooth Number
Retard
Advance
Retard
Advance
42008
42680
7
3
4
6
16
43243
43935
19
10
16
13
16
44479
45190
19
10
16
13
16
45714
46446
3
7
19
10
16
46950
47701
4
6
19
9
12
48185
48956
4
1
15
17
12
49421
50212
18
11
15
14
12
50656
51467
8
2
15
5
8
51892
52722
8
5
11
5
8
53127
53977
14
15
11
18
8
54363
55233
14
15
11
18
4
55598
56488
12
9
7
1
4
56834
57743
10
19
7
3
4
58070
58999
10
19
7
3
4
59305
60254
16
13
3
10
19
60541
61509
6
13
3
10
19
61776
62765
6
4
3
7
19
63012
64020
1
17
18
14
15
64247
65275
2
17
18
14
15
65483
66530
2
8
18
11
15
66718
67786
5
5
18
18
11
67954
69041
5
2
14
18
11
69189
70296
17
12
14
15
11
70425
71552
9
1
14
3
7
71660
72807
9
6
10
3
7
72896
74062
13
16
10
19
7
74131
75317
13
16
10
19
3
75367
76573
13
10
6
7
3
76602
77828
9
10
6
4
3
36076U
Air-Pro
®
Meter Stagger Timing Chart (metric)