Main box: finger meter rates, Reading a finger meter rate chart, 20in single row 6 finger meter – Great Plains 2510HDP Material Rate User Manual
Page 22: Great plains manufacturing, inc
20
2510HDP
Great Plains Manufacturing, Inc.
118-245B
12/01/2009
Main Box: Finger Meter Rates
The basic seed rate for finger meters is determined by:
• Meter finger count (6 or 12)
and with ground drive, by:
• Range sprockets,
• Transmission sprockets, and;
Hydraulic drive rates are set directly on the cab console.
Finger meters have two additional adjustments for opti-
mum results:
1.
Meter brush (see page 21)
2.
Twin row indexing (see page 31)(For all seed corn
types)
IMPORTANT !
Great Plains always recommends test stand calibra-
tion of the finger meter to the population and ground
speed desired.
IMPORTANT !
Recommended speed is 4
1
⁄
2
to 5 mph (7.2 to 8 kph).
Excess speeds are known to deteriorate seed spacing
control and depth control.
Reading a Finger Meter Rate Chart
1.
Consult the chart for your row spacing and finger
count.
2.
Find the desired seed population or seed spacing.
3.
Note the range of meter rpms suitable for that popu-
lation.
IMPORTANT !
The shaded rpms are the recommended rpms for most
consistent results. Use the recommended driving
speed if possible.
For hydraulic drive, set the rate on the console.
For ground drive ...
4.
Each chart page shows the Range and Upper Drive
sprockets at the upper left.
5.
The Transmission sprockets are in the table, found to
the left of the Population.
Finger meter rate is checked using the same steps as for
Singulator Plus meters. See page 6.
20in Single Row
6 Finger Meter
Population
Spacing
Meter
Meter
Meter
Meter
Me
Driven
(seeds/acre)
(inches)
(rpm)
(rpm)
(rpm)
(rpm)
(rp
28
13,190
23.8
52
48
27
13,679
22.9
54
50
46
26
14,205
22.1
56
52
48
28
14 742
21 3
58
54
50
46
70
65
60
55
50
45
73
68
62
57
52
47
73
68
63
57
52
47
75
70
65
59
54
49
70
65
60
54
49
71
65
60
54
49
71
65
60
55
49
73
67
62
56
50
45
73
68
62
56
51
5
For Round Corn optimum me
( Shaded & Non shaded are
Range Sprockets:
Driver =
60
For Flat Corn optimum mete
Driven =
20
(Shaded area)
Ground S
Transmission
7 mph
6.5 mph
6 mp
Combinations
Seed
Seed
Population
Spacing
Meter
Meter
Met
Driver
Driven
(seeds/acre)
(inches)
(rpm)
(rpm)
(rpm
17
28
13,190
23.8
52
48
17
27
13,679
22.9
54
50
46
17
26
14,205
22.1
56
52
48
19
28
14,742
21.3
58
54
50
17
25
14,773
21.2
58
54
50