Twin row sprocket indexing (2 of 3) – Great Plains YP4425A Material Rate User Manual
Page 31
Great Plains Manufacturing, Inc.
Sprocket Indexing (Stagger)
27
2014-05-13
401-627B
Twin Row Sprocket Indexing (2 of 3)
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 30 & 36 Inch
Set front meter to tooth “1”.
Page 2 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/Acre
Initial Rear
20% Rear Seed Drop Adjust
40% Rear Seed Drop Adjust
30 in. Twin
36 in. Twin
Tooth Number
Retard
Advance
Retard
Advance
31500
26250
17
14
1
4
18
32000
26667
17
14
2
11
18
32500
27083
5
14
2
8
18
33000
27500
5
18
5
8
14
33500
27917
2
18
17
15
14
34000
28333
1
18
17
12
14
34500
28750
1
3
9
12
14
35000
29167
6
3
9
19
10
35500
29583
6
3
13
19
10
36000
30000
10
7
13
16
10
36500
30417
10
7
13
4
6
37000
30833
10
7
9
4
6
37500
31250
14
11
17
4
1
38000
31667
14
11
17
8
2
38500
32083
14
11
5
8
2
39000
32500
18
11
2
8
5
39500
32917
18
15
2
12
17
40000
33333
18
15
1
12
17
40500
33750
3
15
1
12
9
41000
34167
3
19
6
16
9
41500
34583
3
19
6
16
13
42000
35000
7
19
10
16
13
42500
35417
7
4
10
16
13
43000
35833
7
4
10
16
9
43500
36250
11
4
14
16
17
44000
36667
11
8
14
16
17
44500
37083
11
8
14
16
5
45000
37500
15
8
18
16
2
45500
37917
15
12
18
16
2
36076H
Air-Pro
®
Meter Stagger Timing Chart (U.S. customary units)