Great-plains YP825AR Operator Manual User Manual Page 93
- Page / 166
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 89
2014-06-17 Table of Contents Index 401-923M
Population Related
Problem Cause Solution
Overall
Population
Alarms
False alarms or actual rate errors
due to monitor setup with
incorrect [active] row count or
spacing
When troubleshooting population issues, always first rule out
seed monitor setup. Review planter configuration and monitor
setup.
Incorrect cell count Replace seed disks with correct disks, or reset rate for current
disks (if within range).
Improper gap on magnetic speed
sensor.
Check speed sensor on planter for a gap to toothed wheel of:
1
⁄
32
inch (0.020-0.040 inch, 0.5-1.0 mm). Improper gap can
cause erratic speed signal causing monitor to falsely report
improper planting rate.
Incorrect speed sensor constant Perform speed calibration per monitor manual.
(Option) Incorrect external speed
source
With planter lowered, check tractor and/or radar speed sensor
angle per manufacturer recommendations.
Seed run-out. Due to unequal
outlets per box division, and if
planting across slopes, some
rows will run out before others.
Re-distribute seed to favor rows that have run out, and plan to
re-fill shortly.
Mismatch
Between
Reported and
Furrow
Population
Small seeds (example milo) are
not reliably sensed in the seed
tube
Run with rain covers in place to minimize ambient light
intrusion. Use the population scaling factor in the seed
monitor system to compensate for missed seeds. Remember
to set this back to 100% for large seeds.
Seed tube sensor is not counting
all seeds
Clean the seed tube of graphite and dust buildup with long
narrow seed tube brush. Replace sensors that malfunction.
Excessive
Seed
Cracking
Incorrect seed pocket size Use correct disk for seed.
Damaged, old or dried-out seed Use new seed.
Unclean seed Use clean seed.
Skips and
Bare Spots
After Turns
Fan was turned off at turns Leave fan running; meter pressurization must be maintained
during turns, or seed will fall out of disk pockets.
Insufficient hydraulic flow to keep
fan running at speed required to
maintain meter pressurization
Check tractor capability against requirements (page 130).
If sufficient:
• Fold markers before engaging lift.
• Use a less aggressive lift rate.
• Monitor meter pressurization during end-of-pass
operations.
Seed too
shallow or
scattered on
ground from a
single row
Bottom of seed tube damaged. Replace seed tube. Avoid setting planter straight down. Use
forward motion when lowering.
Row not penetrating in tire tracks. Increase down force on parallel arm springs.
Opener depth too shallow. Change side depth wheel setting.
Twin Rows
were timed
but became
out of time.
Timing will change when a
population change has been
made.
Re-time meters from the population based timing chart.
Chain has jumped. Check sprockets and chain for excessive wear or rusty links.
- 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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