Great Plains 1625AHL Operator Manual - Manual (Page 54)

50 1625AH Table of Contents Index Great Plains Manufacturing, Inc.
411-020M Table of Contents Index 2014-04-21
Air-Pro
®
Meter Operation
Refer to Figure 37
The meter disk is driven, top forward, by a chain drive
(not shown) always connected to the section drive shaft.
At non-planting rows, use a blank disk (page 83).
Meter pressurization air enters the meter at , and
exits the meter primarily at the seed pockets in the seed
disk. The pressure differential holds seed in the disk
pockets
rising from the seed pool. Excess seed at a
pocket is picked off by the tickler brushes .
The strip and drop brushes block meter pressurization
air. Seeds passing the drop brush
are free to fall into
the seed tube, and are detected by the seed sensor .
Meter Operation
1. Install disks for your crop/population range per the
Seed Rate Manual and the instructions beginning
on page 81 of this manual.
2. Open the shutter at planting rows to the
recommended initial setting (from the Seed Rate
charts). At unused rows, install a blank disk
(page 83) and close shutter.
3. Set sprocket indexing if staggering a twin-row crop
(see Seed Rate Manual for details).
4. Operate fan to achieve suggested manifold pressure
(Seed Rate Manual, and page 52).
5. With all rows primed, rotate meters one turn to fill
pockets to edge of drop brush. Rotate the drive shaft
(top forward) with a
7 ⁄
8
inch (23 mm) wrench, or raise
and rotate ground drive wheel (top forward).
6. Leave fan running (to keep seed in top pockets).
Re-install rain covers. Commence planting.
Meter operation is automatic from this point on.
See also:
“Seed Pool Troubleshooting” on page 89,
“Material Clean-Out” on page 103, and
“Meter Brush Maintenance” on page 112.
Figure 37
Air-Pro
®
Seed Meter at Row
29825
2
7
8
A16
A27
A26
A29
A16
A27
7
8
A29