Great Plains 3N-4025P Operator Manual - Manual (Page 87)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 83
2014-01-29 Table of Contents Index 196-538M
Finger Meter Brush Adjustment
The brush reduces or eliminates “doubles” (delivering
two seeds per finger), but if set too aggressively can
cause “skips” (delivering no seed on some fingers). As
needed, adjust for minimal doubles and skips.
Note: These instructions describe the current finger
pickup meter shipped with new Great Plains drills,
with an integrated adjustment lever for the brush. If
you have added pre-existing finger meters after
purchase, there is some chance that you may have
the previous model meter, adjusted by screwdriver
rather than lever. If so, rely on counting detents to
determine the setting. Not all have 9 detents.
Refer to Figure 107
The adjustable brush provides additional flexibility to
accommodate a wide range of seed sizes. Use lever (L)
to gently rotate the brush into position.
The settings range from 1 to 5 with detents at each half
step, for a total of 9 detents. The factory default setting is
2
1 ⁄
2
. Although the numbers are molded into the meter
housing, only “1” and “5” may be visible. To ensure
consistency, rotate the lever
fully counter-clockwise
(1), and count detents as you advance it to the desired
setting.
Use the general guidelines in the table at right to adjust
the brush position to your seed size and shape. The
numbers listed correspond to the numbers printed on the
outer housing of your meter. If there is a decal on your
meter, its units are seed size in pounds per 80,000 seed
bag.
Figure 107: 10HD, 25 Series:
Finger Meter Brush Lever
25276
5
1
4
3
2
L
L
Bag Weight Seeds Per Brush Seeds Per Bag Weight
(80,000 seeds) Pound Setting Kilogram (80,000 seeds)
Rounds
65 lbs 1230 or less 1 2710 or less 29.5 kg
65 to 55 lbs 1230 to 1450 2 2710 to 3195 29.5 to 24.9 kg
55 to 45 lbs 1450 to 1780 3 3195 to 3925 24.9 to 20.4 kg
45 to 35 lbs 1780 to 2300 4 3925 to 5070 20.4 to 15.9 kg
35 lbs 2300 or more 5 5070 or more 15.9 kg
Flats
45 lbs 1780 or less 1 3925 or less 20.4 kg
45 to 35 lbs 1780 to 2300 2 3925 to 5070 20.4 to 15.9 kg
35 lbs 2300 or more 3 5070 or more 15.9 kg
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