Great Plains 1625AHL Material Rate User Manual
Page 70
411-020B
2014-03-17
66
1625AHD/AHL
Great Plains Manufacturing, Inc.
Sprocket Indexing (Stagger)
If you are planting:
• with a seed disc having 24 cells or less,
• twin-row crops,
• at seed populations below 161 000 seeds/ha
(60,000 seeds/acre)
you can synchronize each pair of adjacent meters in a
twin row for maximum seed-to-seed spacing between the
units of the pair.
If the initial indexing does not provide equal spacing, see
“Indexing Fine Adjustment” on page 69.
If you are planting:
- single-row, or
- with seed discs or 25 cells or more, or
- a volumetric crop, or
- twin row with seed spacings below 23.5 cm (9
1
⁄
4
inch),
this section of the manual, and the sprocket indexing
charts, do not apply to your operations.
28420
Source:
/files/drills/gwa/air_pro_meter_timing.ods
Dated:
2011-03-17T16:27
Provider
GWA
File:
/files/iso/text/36000/36076.ods
Base ISO:
36076
Sheet:
KLM
Rendered:
2014-02-25T08:20
By: RJN
Export As:
/files/iso/text/36000/36076L.pdf
Import As:
/files/iso/text/36000/36076L.eps
Twin Row 70/75/76/91 cm
Set front meter to tooth “1”.
Page 2 of 3
Set rear meter to indicated Initial tooth number.
Advance or Retard to adjust - see instructions in Seed Rate Manual.
These Columns are for Fine Adjustment Only
Population Seeds/Hectare
Initial Rear
20% Rear Seed Drop Adjust
40% Rear Seed Drop Adjust
70.0 cm
75.0 cm
76.2 cm
91.4 cm
Tooth Number
Retard
Advance
Retard
Advance
84732
79083
77838
64865
17
14
1
4
18
86077
80339
79073
65895
17
14
2
11
18
87422
81594
80309
66924
5
14
2
8
18
88767
82849
81544
67954
5
18
5
8
14
90112
84104
82780
68983
2
18
17
15
14
91457
85360
84015
70013
1
18
17
12
14
92802
86615
85251
71043
1
3
9
12
14
94147
87870
86487
72072
6
3
9
19
10
95492
89126
87722
73102
6
3
13
19
10
96837
90381
88958
74131
10
7
13
16
10
98182
91636
90193
75161
10
7
13
4
6
99527
92891
91429
76191
10
7
9
4
6
100872
94147
92664
77220
14
11
17
4
1
102216
95402
93900
78250
14
11
17
8
2
103561
96657
95135
79279
14
11
5
8
2
104906
97913
96371
80309
18
11
2
8
5
106251
99168
97606
81339
18
15
2
12
17
107596
100423
98842
82368
18
15
1
12
17
108941
101679
100077
83398
3
15
1
12
9
110286
102934
101313
84427
3
19
6
16
9
111631
104189
102548
85457
3
19
6
16
13
112976
105444
103784
86487
7
19
10
16
13
114321
106700
105019
87516
7
4
10
16
13
115666
107955
106255
88546
7
4
10
16
9
117011
109210
107490
89575
11
4
14
16
17
118356
110466
108726
90605
11
8
14
16
17
119701
111721
109961
91635
11
8
14
16
5
121046
112976
111197
92664
15
8
18
16
2
122391
114231
112432
93694
15
12
18
16
2
36076L
Air-Pro
®
Meter Stagger Timing Chart (metric)
Thumbnail view. Actual charts begin on page 70.
Crushing Hazard:
Install transport locks. Do not rely on hydraulics to hold the
planter at raised. This adjustment takes some time.
Due to limitations on the number of sprocket teeth and
wheel cell count, it may not be possible to obtain perfect
stagger. Charts and fine adjustment provide the optimal
available stagger.