Twin row sprocket indexing (4 of 6) – Great Plains 1625AHL Material Rate User Manual
Page 77
Great Plains Manufacturing, Inc.
Sprocket Indexing (Stagger)
73
2014-03-17
411-020B
Twin Row Sprocket Indexing (4 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 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/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
17000
12750
7
3
4
6
16
17500
13125
19
10
16
13
16
18000
13500
19
10
16
13
16
18500
13875
3
7
19
10
16
19000
14250
4
6
19
9
12
19500
14625
4
1
15
17
12
20000
15000
18
11
15
14
12
20500
15375
8
2
15
5
8
21000
15750
8
5
11
5
8
21500
16125
14
15
11
18
8
22000
16500
14
15
11
18
4
22500
16875
12
9
7
1
4
23000
17250
10
19
7
3
4
23500
17625
10
19
7
3
4
24000
18000
16
13
3
10
19
24500
18375
6
13
3
10
19
25000
18750
6
4
3
7
19
25500
19125
1
17
18
14
15
26000
19500
2
17
18
14
15
26500
19875
2
8
18
11
15
27000
20250
5
5
18
18
11
27500
20625
5
2
14
18
11
28000
21000
17
12
14
15
11
28500
21375
9
1
14
3
7
29000
21750
9
6
10
3
7
29500
22125
13
16
10
19
7
30000
22500
13
16
10
19
3
30500
22875
13
10
6
7
3
31000
23250
9
10
6
4
3
36076D
Air-Pro
®
Meter Stagger Timing Chart (U.S. customary units)