Indexing fine adjustment, Finger meter stagger adjustment, Eter indexing chart – Great Plains 2525P Material Rate User Manual
Page 69
Great Plains Mfg., Inc.
67
03/23/2010
118-231B
Indexing Fine Adjustment
If, after indexing, twin-row side-to-side seed stagger is
substantially imbalanced, it is possible to make small
adjustments that may correct it.
The procedure is different for 6- and 12-finger meters.
If an adjustment is made, test it on one row pair before
adjusting the entire drill.
Before making any Indexing Adjustments:
• Check actual planted seed spacing. Seed Spacing is
found by measuring the distance between 25 cor-
rectly planted seeds in one row and dividing by 24. (A
visible skip or double is counted as one seed.)
• Make sure current rear sprocket index number
matches the number in the indexing chart for actual
seed spacing being planted.
6-Finger Meter Stagger Adjustment
Find your current indexing value row in the charts.
Each (sprocket tooth) number directly above or below
the current rear meter sprocket setting in the right most
column of the seed indexing chart represents a small
movement of the rear row seed relative to the front row
seed.
Changing rear your sprocket to the next number up in
the chart retards, moving each rear row seed back a
small amount.
Changing rear sprocket to the next number down in the
chart advances, moving each rear row seed ahead a
small amount.
Example 1: The 6 Finger (Twin Row 30in) planting
population is 29900 or 14in seed spacing. The chart
setting for the rear sprocket is (15). Each rear row seed
should fall 7in behind the front row seed.
If each rear row seed measures only 6in behind the
front row seed, reset the rear meter sprocket to the next
number up in the chart (12). This will move the rear
seeds back to make the stagger closer to 7in.
Example 2: The 6 Finger (Twin Row 30in) planting
population is 29900 or 14in seed spacing. The chart
setting for the rear sprocket is (15). Each rear row seed
should fall 7in behind front row seed.
If each rear row seed measures 8in behind the front
row seed, reset the rear meter sprocket to the next
number down in the chart (18). This will move the rear
seeds ahead to make the stagger closer to 7in.
28421
eter Indexing Chart
Front Meter
Rear Meter
Sprocket Tooth #
Sprocket Tooth #
4.7
1
7
2.7
1
10
0.9
1
13
9.4
1
16
8.0
1
19
6.9
1
3
5.9
1
6
5.0
1
9
4.2
1
12
3.5
1
15
2.8
1
18
2.2
1
2
1 7
1
5
ange
Advance
☞
Retard
☞
Current
☞