Great Plains 2525P Operator Manual - Manual (Page 47)

Great Plains Manufacturing, Inc. Adjustments 43
2013-05-10 118-231M
Finger Meter Adjustments
The finger pick up meter has an adjustable brush, and
alternate inserts are available for the backing plate. The
brush has been pre-set to the optimum setting for most
seed sizes. The factory-installed insert is the “A” insert.
Optimum planting speed is 4 1 ⁄
2
to 5 miles per hour.
Excess speed results in poor spacing performance due
to seed tube bounce. Excess speed may also result in
improper depth control due to row unit bounce.
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,
which has 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 a 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 60
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 con-
sistency, rotate the lever
fully counter-clockwise to “1”,
and count detents as you advance it to the desired set-
ting.
Use the general guidelines in the table below 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.
Always pay attention to your seed monitor. Compare
actual seed usage to your estimates.
Fine-tune your drill by thoroughly checking all key com-
ponents including: seed tubes, chains, sprockets, tire
pressure, seed monitor, double disk openers, gauge
wheels, seed firmer, closing wheels, parallel arms, and
the row unit itself.
Figure 60
Finger Meter Brush Lever
25276
5
1
4
3
2
L
L
Bag Weight
(80,000 seeds)
Seeds Per
Pound
Brush
Setting
Rounds
65 lbs 1230 or less 1
65 to 55 lbs 1230 to 1450 2
55 to 45 lbs 1450 to 1780 3
45 to 35 lbs 1780 to 2300 4
35 lbs 2300 or more 5
Flats
45 lbs 1780 or less 1
45 to 35 lbs 1780 to 2300 2
35 lbs 2300 or more 3