30 inch twin row sprocket indexing – Great Plains YP2425A Material Rate User Manual
Page 29
Great Plains Manufacturing, Inc.
Table of Contents Metric Charts
Sprocket Indexing (Stagger)
27
2012-02-29
Table of Contents Metric Charts
401-626B
30 inch 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.
Twin Row 30in
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
Initial Rear
20% Rear Seed Drop Adjust
40% Rear Seed Drop Adjust
Seeds/Acre
Tooth Number
Retard
Advance
Retard
Advance
31000
9
10
6
4
3
31500
17
14
1
4
18
32000
17
14
2
11
18
32500
5
14
2
8
18
33000
5
18
5
8
14
33500
2
18
17
15
14
34000
1
18
17
12
14
34500
1
3
9
12
14
35000
6
3
9
19
10
35500
6
3
13
19
10
36000
10
7
13
16
10
36500
10
7
13
4
6
37000
10
7
9
4
6
37500
14
11
17
4
1
38000
14
11
17
8
2
38500
14
11
5
8
2
39000
18
11
2
8
5
39500
18
15
2
12
17
40000
18
15
1
12
17
40500
3
15
1
12
9
41000
3
19
6
16
9
41500
3
19
6
16
13
42000
7
19
10
16
13
42500
7
4
10
16
13
43000
7
4
10
16
9
43500
11
4
14
16
17
44000
11
8
14
16
17
44500
11
8
14
16
5
45000
15
8
18
16
2
29715B
Air-Pro
®
Meter Stagger Timing Chart