Twin row sprocket indexing (5 of 6) – Great Plains 1625AHL Material Rate User Manual
Page 78
74
1625AHD/AHL
Great Plains Manufacturing, Inc.
411-020B
2014-03-17
Twin Row Sprocket Indexing (5 of 6)
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
23625
17
14
1
4
18
32000
24000
17
14
2
11
18
32500
24375
5
14
2
8
18
33000
24750
5
18
5
8
14
33500
25125
2
18
17
15
14
34000
25500
1
18
17
12
14
34500
25875
1
3
9
12
14
35000
26250
6
3
9
19
10
35500
26625
6
3
13
19
10
36000
27000
10
7
13
16
10
36500
27375
10
7
13
4
6
37000
27750
10
7
9
4
6
37500
28125
14
11
17
4
1
38000
28500
14
11
17
8
2
38500
28875
14
11
5
8
2
39000
29250
18
11
2
8
5
39500
29625
18
15
2
12
17
40000
30000
18
15
1
12
17
40500
30375
3
15
1
12
9
41000
30750
3
19
6
16
9
41500
31125
3
19
6
16
13
42000
31500
7
19
10
16
13
42500
31875
7
4
10
16
13
43000
32250
7
4
10
16
9
43500
32625
11
4
14
16
17
44000
33000
11
8
14
16
17
44500
33375
11
8
14
16
5
45000
33750
15
8
18
16
2
45500
34125
15
12
18
16
2
36076H
Air-Pro
®
Meter Stagger Timing Chart (U.S. customary units)