Great Plains |
401-625B | 6/19/19
16
YP1225A and YP1625A
Sprocket Indexing (Stagger)
Twin Row Sprocket Indexing Charts
This is NOT a seed rate chart. This is a chart for
staggering seed spacing between rows of a twin-row
planter.
These charts contain US customary units and metric
units (seeds/acre and seeds/hectare).
Verify sprocket tooth position with the top length of chain taut.
1. Set front meter to tooth “1”.
2. Set rear meter to indicated initial tooth number.
3. Advance or Retard to adjust.
acre
hectare
acre
hectare
Retard
Advance
Retard
Advance
17 000
42 008
14 167
35 006
7
3
4
6
16
17 500
43 243
14 583
36 036
19
10
16
13
16
18 000
44 479
15 000
37 066
19
10
16
13
16
18 500
45 714
15 417
38 095
3
7
19
10
16
19 000
46 950
15 833
39 125
4
6
19
9
12
19 500
48 185
16 250
40 154
4
1
15
17
12
20 000
49 421
16 667
41 184
18
11
15
14
12
20 500
50 656
17 083
42 214
8
2
15
5
8
21 000
51 892
17 500
43 243
8
5
11
5
8
21 500
53 127
17 917
44 273
14
15
11
18
8
22 000
54 363
18 333
45 302
14
15
11
18
4
22 500
55 598
18 750
46 332
12
9
7
1
4
23 000
56 834
19 167
47 362
10
19
7
3
4
23 500
58 070
19 583
48 391
10
19
7
3
4
24 000
59 305
20 000
49 421
16
13
3
10
19
24 500
60 541
20 417
50 450
6
13
3
10
19
25 000
61 776
20 833
51 480
6
4
3
7
19
25 500
63 012
21 250
52 510
1
17
18
14
15
26 000
64 247
21 667
53 539
2
17
18
14
15
26 500
65 483
22 083
54 569
2
8
18
11
15
27 000
66 718
22 500
55 598
5
5
18
18
11
27 500
67 954
22 917
56 628
5
2
14
18
11
28 000
69 189
23 333
57 658
17
12
14
15
11
28 500
70 425
23 750
58 687
9
1
14
3
7
29 000
71 660
24 167
59 717
9
6
10
3
7
29 500
72 896
24 583
60 746
13
16
10
19
7
30 000
74 131
25 000
61 776
13
16
10
19
3
30 500
75 367
25 417
62 806
13
10
6
7
3
31 000
76 602
25 833
63 835
9
10
6
4
3
68254K
Twin Row 30in
Twin Row 36in
Initial Rear
Tooth
Number
Seeds per
Seeds per
These Columns are for Fine Adjustment Only
20% Rear Seed Drop
Adjustment
40% Rear Seed Drop
Adjustment
