30in rows, 12-finger indexing, Twin row 30" 12 finger meter indexing chart – Great Plains 2525P Material Rate User Manual
Page 62
Great Plains Mfg., Inc.
60
118-231B
03/23/2010
30in Rows, 12-Finger Indexing
NOTE: This chart is for indexing finger pickup meter sprockets
only!!! Indexing sprockets will help time twin rows to drop seeds
in an alternating sequence. This chart is NOT a seed rate chart.
Twin Row 30" 12 Finger Meter Indexing Chart
Front Meter
Rear Meter
Sprocket Tooth #
Sprocket Tooth #
18400
20000
22.7
20.9
1
7
20000
21600
20.9
19.4
1
18
21600
23200
19.4
18.0
1
10
23200
24700
18.0
16.9
1
2
24700
26100
16.9
16.0
1
13
26100
27900
16.0
15.0
1
5
27900
29400
15.0
14.2
1
16
29400
31000
14.2
13.5
1
8
31000
32600
13.5
12.8
1
19
32600
34100
12.8
12.3
1
11
34100
35700
12.3
11.7
1
3
35700
37300
11.7
11.2
1
14
37300
38900
11.2
10.8
1
6
38900
40500
10.8
10.3
1
17
40500
41900
10.3
10.0
1
9
41900
43700
10.0
9.6
1
1
43700
45100
9.6
9.3
1
12
45100
46700
9.3
9.0
1
4
46700
48300
9.0
8.7
1
15
48300
49900
8.7
8.4
1
7
49900
51400
8.4
8.1
1
18
51400
52900
8.1
7.9
1
10
52900
54500
7.9
7.7
1
2
54500
56200
7.7
7.4
1
13
56200
57800
7.4
7.2
1
5
57800
59300
7.2
7.1
1
16
59300
60900
7.1
6.9
1
8
60900
62400
6.9
6.7
1
19
62400
64000
6.7
6.5
1
11
NOTE: If rear row does not appear centered between front row seeds, small adjustment
may be made to the stagger. Refer to "Adjustments to Seed Stagger on 12 Finger Meters."
NOTE: Indexing finger pickup meters can be done with the drill in planting position or with
the drill raised (all openers in their lowest position).
1. Pick the planting population which you want to plant from the chart above.
NOTE: When indexing sprockets, the top side of the meter drive chain must be tight.
2. Set the front row meter drive sprockets so the tooth stamped #1 is straight up.
3. Set the rear row meter drive sprockets to match the number from the chart above. Be sure
Population Range
Seed Spacing Range
the number is straight up.