Twin row sprocket indexing (6 of 6), 75) the sproc – Great Plains 1625AHL Material Rate User Manual
Page 79
Great Plains Manufacturing, Inc.
Sprocket Indexing (Stagger)
75
2014-03-17
411-020B
Twin Row Sprocket Indexing (6 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 3 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
46000
34500
15
12
18
16
1
46500
34875
15
12
3
16
1
47000
35250
19
16
3
16
6
47500
35625
19
16
3
16
6
48000
36000
19
16
7
16
10
48500
36375
4
16
7
16
10
49000
36750
4
16
7
16
10
49500
37125
4
16
11
16
14
50000
37500
8
16
11
16
14
50500
37875
8
16
11
16
14
51000
38250
8
16
15
16
18
51500
38625
12
16
15
16
18
52000
39000
12
16
15
16
18
52500
39375
12
16
15
16
3
53000
39750
16
16
19
16
3
53500
40125
16
16
19
16
3
54000
40500
16
16
19
16
7
54500
40875
16
16
4
16
7
55000
41250
16
16
4
16
7
55500
41625
16
16
4
16
11
56000
42000
16
16
8
16
11
56500
42375
16
16
8
16
11
57000
42750
16
16
8
16
15
57500
43125
16
16
12
16
15
58000
43500
16
16
12
16
15
58500
43875
16
16
12
16
15
59000
44250
16
16
16
16
19
59500
44625
16
16
16
16
19
60000
45000
16
16
16
16
19
36076J
Air-Pro
®
Meter Stagger Timing Chart (U.S. customary units)