Great-plains 2525P Material Rate User Manual download pdf (Page 69)

Great Plains Mfg., Inc.

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 ☞

1 2 ... 64 65 66 67 68 69 70 71

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Great-plains 2525P Material Rate User Manual Page 69

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