Great-plains YP825AR Operator Manual User Manual Page 82
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78 YP825AR Table of Contents Index Great Plains Manufacturing, Inc.
401-923M Table of Contents Index 2014-06-17
Row Unit Shut-Off
Skip-row operations, such as planting from every other
row when switching from 30 inch twin-row to 30 inch
single-row, requires shutting down unused rows.
Shutting off seeding at a row involves 4 to 7 steps:
1. Identify the rows to shut off (page 78).
2. Fully close seed inlet shutter (page 78).
3. Replace seed disk with blank disk (page 78).
4. Lock up row unit to reduce wear (optional, page 79).
5. Reset marker extension (Option, page 151).
6. Reset monitor active row pattern and row spacing to
avoid nuisance alarms (see Monitor manual).
7. Shut off fertilizer drop lines (Option, see Seed and
Fertilizer Rate manual 401-923B for details).
Note: Meter drive is not disabled on 25AP row units
during shut-off.
1. Identify Rows to Shut Off
On twin-row planters, openers are installed with short
and long opener mounts. If locking up unused rows of a
twin-row planter, shut off the rear (long mount) rows.
On single-row planters with mid-length mounts, any rows
may be locked up.
If not locking up rows, any rows may be shut off.
2. Close Seed Shutter
Refer to Figure 98 on page 78
Lift the handle away from the plate. Move it to the top
position, and release the handle into the notch.
Closing the shutter prevents meter pressurization air
from leaking into the bulk seed air system, resulting in
lower pressures in adjacent rows, with risk of skips.
The shutter also stops seed flow from a row as soon as
the meter is empty. Bulk seed flow to the row falls to nil
as soon as the seed backs up to the air release vent at
the top of the meter.
3. Install Blank Disk
Refer to Figure 99
Clean out meter. See “Meter Clean-Out” on page 97.
Remove seed disk and install blank disk. See “Air-Pro®
Meter Disk Installation” on page 76.
Figure 98
Seed Inlet Shutter Closed
29609
2
1
Irregular Seeding Risk:
Always use a blank disk in a shut-off row. Operating with no
disk, or with a seed disk but no seed, destabilizes the regulated
airflow, particularly at rows with pressure sensor lines.
Figure 99
Shutter Closed, Blank Disk Installed
29610
2
1
- Operator Manual 1
- Table of Contents 3
- Important Safety Information 5
- Wear Protective Equipment 6
- Avoid High Pressure Fluids 6
- Use A Safety Chain 7
- Keep Riders Off Machinery 7
- Use Safety Lights and Devices 7
- Transport Machinery Safely 7
- Shutdown and Storage 8
- Tire Safety 8
- Handle Chemicals Properly 8
- Practice Safe Maintenance 9
- Safety At All Times 9
- Safety Decals 10
- READ BEFORE USING TANK 11
- EXCESSIVE SPEED HAZARD 12
- 848-801C 14
- Introduction 15
- Using This Manual 16
- Owner Assistance 16
- Preparation and Setup 17
- Hitching Tractor to Planter 18
- Hydraulic Hose Hookup 20
- Air Source Setup (Option) 21
- Leveling Planter 22
- Monitor Setup 24
- Marker Setup (Option) 24
- Lock Up Fertilizer Drive 25
- Operating Instructions 26
- Transport 27
- Transport Steps 28
- Color Function 29
- CLOSED OPEN 30
- Unfolding/Folding the Planter 31
- 34702-04 34
- Field Lift/Lower 39
- Marker Operations 40
- Loading Materials 41
- Loading Seed, continued 42
- Air System Operation 49
- 848-020C 52
- Meter Operation 53
- Field Set-Up Checklists 54
- Field Operation 55
- Short-Term Parking 56
- Long-Term Storage 56
- Adjustments 57
- Setting Material Rates 58
- Marker Adjustments (Option) 59
- Fan and Gauge Adjustment 60
- Single-Row Augers 64
- Row Implement Adjustments 66
- Row Unit Down Pressure 70
- UMC Coulter Adjustments 73
- Side Gauge Wheel Adjustment 76
- Row Unit Shut-Off 82
- Seed Firmer Adjustments 84
- Troubleshooting 87
- Seed Pool Troubleshooting 88
- Problem Cause Solution 89
- Population Too Low 90
- Population Too High 91
- Population Related 93
- General Troubleshooting 94
- Maintenance and Lubrication 99
- Material Clean-Out 100
- Liquid Fertilizer Clean-Out 102
- Dry Fertilizer Clean-Out 103
- Hydraulic Maintenance 109
- As Required 112
- 25474 25475 116
- Seasonal 118
- Seed Lubricants 120
- Seed Monitor 121
- Seed Meter Drive 121
- PTO Pump 122
- Speed Radar 124
- Liquid Fertilizer System 124
- Dry Fertilizer System 125
- Dual Sequenced Markers 126
- Frame-Mounted Row Accessories 126
- Terra-Tine™ 127
- Row-Mounted Accessories 128
- Unit-Mounted Disk Coulters 129
- Seed Meter Disks 129
- Inside Disk Scrapers 130
- Gauge Wheel Scrapers 130
- Seed Firmers 130
- Row Unit Press Wheels 131
- Lock-Up Pins 131
- Seed Lubricant 131
- Clean-Out Container 132
- Seed Tube Brush 132
- Specifications and Capacities 134
- 70 and 75 cm Models 135
- Dimensions 136
- Field Dimensions 137
- Torque Values Chart 138
- Tire Inflation Chart 138
- Plumbing Diagrams 139
- Hydraulic Diagrams 140
- Chain Routing 149
- Twin Row Single Row 151
- 15T, 47T 152
- 25AP: Meter Drive (Mid type) 153
- 25AP: Meter Drive (Rear type) 153
- Appendix C - Initial Setup 154
- Marker Extension 155
- 122-278S Scraper Installation 158
- NOZZLE SHUT OFF CAP W/ GASKET 159
- Table of Contents Index 165
- Salina, Kansas 67402-5060 USA 166
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