Great Plains 2510HDP Material Rate - Manual (Page 23)

Great Plains Manufacturing, Inc. Main Seed Box Planting 21
12/01/2009 118-245B
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 (7.2 to
8 kph). Excess speed results in poor spacing perfor-
mance due to seed tube bounce. Excess speed may also
result in improper depth control due to row unit bounce.
Always pay attention to your planter monitor. Compare
actual seed usage to your estimates.
Fine-tune your planter by thoroughly checking all key
components 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.
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 pick-
up meter shipped with new Great Plains planters,
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 the previous model meter, adjusted by screw-
driver rather than lever. If so, rely on counting de-
tents to determine the setting. Not all have 9
detents.
Refer to Figure 4
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 polymer
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 4
Finger Meter Brush Lever
25276
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
5
1
4
3
2
L
L