Metric twin row sprocket indexing (cont.) – Great Plains YP825AR Material Rate User Manual
Page 92
88
YP825AR
Great Plains Manufacturing, Inc.
401-923B
2013-11-11
Metric Twin Row Sprocket Indexing (cont.)
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
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/Ha
Initial Rear
20% Rear Seed Drop Adjust
40% Rear Seed Drop Adjust
76.2 cm
75 cm
Tooth Number
Retard
Advance
Retard
Advance
42008
42680
7
3
4
6
16
43243
43935
19
10
16
13
16
44479
45190
19
10
16
13
16
45714
46446
3
7
19
10
16
46950
47701
4
6
19
9
12
48185
48956
4
1
15
17
12
49421
50212
18
11
15
14
12
50656
51467
8
2
15
5
8
51892
52722
8
5
11
5
8
53127
53977
14
15
11
18
8
54363
55233
14
15
11
18
4
55598
56488
12
9
7
1
4
56834
57743
10
19
7
3
4
58070
58999
10
19
7
3
4
59305
60254
16
13
3
10
19
60541
61509
6
13
3
10
19
61776
62765
6
4
3
7
19
63012
64020
1
17
18
14
15
64247
65275
2
17
18
14
15
65483
66530
2
8
18
11
15
66718
67786
5
5
18
18
11
67954
69041
5
2
14
18
11
69189
70296
17
12
14
15
11
70425
71552
9
1
14
3
7
71660
72807
9
6
10
3
7
72896
74062
13
16
10
19
7
74131
75317
13
16
10
19
3
75367
76573
13
10
6
7
3
76602
77828
9
10
6
4
3
36076U
Air-Pro
®
Meter Stagger Timing Chart (metric)