Main box seed rate, Setting drive type, Main box seed rate setting drive type – Great Plains 3P600 Material Rate User Manual
Page 4: Drive type relative speed, Table of contents main box rates, Figure 3 gearbox handle adjustment, Great plains manufacturing, inc, 794b
118-794B
2011-10-21
2
3P500, 3P500V & 3P600
Great Plains Manufacturing, Inc.
Main Box Seed Rate
Accurately obtaining the desired seed population
requires four steps:
1.
Setting Drive Type gearbox (from chart)
2.
Setting initial Seed Rate Handle (from chart)
3.
Positioning Seed Cup Door (by seed type)
4.
Calibration: checking predicted seeding rate
Seed rate charts begin on page 7. The charts list proper
Drive Type and seed rate handle settings for various
seeds and seeding rates.
The seed rate charts are based on cleaned, untreated
seed of average size and test weight. The charts are
based on factory-supplied new 5.70L x 8 tires, inflated to
factory specification. Many factors affect seeding rates
including foreign material, seed treatment, seed size,
seed weight, field conditions, tire pressure and test
weight.
Use the charts only as a starting point. Minor
adjustments are commonly required. Set and check the
seeding rate using the procedures beginning on page 5,
then readjust the rate as necessary.
Setting Drive Type
Refer to Figure 3
The charts list Drive Types as 1, 2, 3 or 4. Drive Type is
determined by the handle
on the gearbox cover at left
front of the drill. Move the handle until the Drive Type
number appears in the handle window
For correct Drive Type, refer to the charts in the Seed
Rate manual. Each Drive Type corresponds to a specific
gear ratio.
Note: Drive Type affects both Main Box and optional
Native Grass seed rates.
3P500, 3P500V & 3P600
Rate Charts, Main Seed Box, continu
ed...
Barley (Hordeum vulgare)
Seed Rate Handle Setting
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Rows Drive Type: 1
Seed Rate in Pounds Per Acre
(based on 51 pounds/bushel)
6 in.
0 5.9 7.9 10 14 17 21 25
30
34
39
44
48
53
57
61
64
67
70
72
73
7.25 in
0 4.9 6.5 8.7 11 14 17 21
25
28
32
36
40
44
47
50
53
56
58
59
60
7.5 in
0 4.7 6.3 8.4 11 14 17 20
24
27
31
35
39
42
45
49
51
54
56
57
58
32293G
Seed Rate Handle Setting
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Rows Drive Type: 2
Seed Rate in Pounds Per Acre
(based on 51 pounds/bushel)
6 in.
0
12
16
22
28
35
43
52
61
71
80
90
99 108 117 125 132 138 143 147
150
7.25 in
0
10
13
18
23
29
36
43
51
58
66
74
82
89
97 103 109 114 119 122 124
7.5 in
0
10
13
17
22
28
35
42
49
56
64
72
79
86
93 100 105 110 115 118 120
32293G
Seed Rate Handle Setting
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Rows Drive Type: 3
Seed Rate in Pounds Per Acre
(based on 51 pounds/bushel)
6 in.
0
17
24
33
43
53
65
77
90 104 117 131 145 158 171
183 195 206 216 225 232
7.25 in
0
14
20
27
35
44
54
64
75
86
97 108 120 131 142 152 162 171
179 186 192
7.5 in
0
14
19
26
34
43
52
62
72
83
94 105 116 126 137 147 156 165
173 180 186
32293G
Seed Rate Handle Setting
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Rows Drive Type: 4
Seed Rate in Pounds Per Acre
(based on 51 pounds/bushel)
6 in.
0
28
40
54
70
87 106 126 147 169 191 214
236 258 279 299 318 336 352
367 379
7.25 in
0
23
33
44
58
72
88 104 122 140 158 177 195
213 231 248 263 278 292 303
314
7.5 in
0
22
32
43
56
70
85 101 118 135 153 171 189
206 223 239 255 269 282 293
303
32293G
32811
Figure 3
Gearbox Handle Adjustment
18476
1
2
2
Drive Type
Relative Speed
1
Slowest
2
2.06 times faster than Type 1
3
3.08 times faster than Type 1
4
5.02 times faster than Type 1
32790