Great-plains 2525P Operator Manual User Manual Page 32
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- Table of contents
- TROUBLESHOOTING
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28 2020P/2025P and 2520P/2525P Great Plains Manufacturing, Inc.
118-231M 2013-05-10
Row Unit Adjustments
Refer to Figure 22 (which depicts a 25-Series row unit
fully populated with all optional accessories supported
for use with the 2020P, 2025P, 2520P and 2525P drill)
From front to back, a Great Plains 20 or 25 Series row
unit can include the following capabilities (some
optional):
1. Down Pressure Springs: standard
Each row unit is mounted on the drill with parallel
arms which allow each row unit to independently
move up and down while staying horizontal. Adjust-
able springs provide the force to get the row unit and
attachments into the soil. See “Row Unit Down
Pressure” on page 29.
2. Disk Coulter: optional, choice of blades
(25 Series only)
Coulters cut trash, and create a groove for light
no-till planting. The down force needed to cut and
widen the coulter groove is supplied by the row unit.
The depth relative to the opener is set by a choice of
hub mounting holes. See “25 Series Coulter
Adjustments” on page 34.
3. Disc Blades: standard, 2 per row unit
Double disc blades widen the coulter groove, creat-
ing the seed bed. Setup controls depth and width.
See “Row-Unit Opener Disc Adjustments” on
page 36.
4. Depth Side Gauge Wheels: standard
The depth gauge wheels have adjustments for spac-
ing and angle. See “Side Gauge Wheel Adjust-
ment” on page 37.
5. Seed meter: required, choice of models/features
Meters deliver singulated or volumetric seed. See
“Seed Meter Setup and Adjustment” on page 39.
6. Seed delivery tube: standard (not shown)
No adjustments are necessary.
7. Seed firmer (optional):
Keeton seed firmer (shown mounted)
Improves seed-soil contact. See See “Keeton Seed
Firmer Adjustment” on page 45.
Seed-Lok™ firming wheel (shown in inset)
Improves seed-soil contact. See “Seed-Lok™ Seed
Firmer Lock-Up (old style)” on page 46.
8. Gauge Wheel Scraper: optional
The depth gauge wheels also accept an optional
scraper. See “Adjusting 25 Series Gauge Wheel
Scrapers” on page 38.
9. Press wheels: standard (choice of types)
These close the seed trench. See “Press Wheel
Adjustment” on page 47.
Certain Machine Damage:
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
Figure 22
25 Series Row Unit
18287
26219
1
3
2
4
7
5
6
8
9
- Operator Manual 1
- Table of Contents 3
- Important Safety Information 5
- Shutdown and Storage 6
- Use Safety Lights and Devices 6
- Transport Machinery Safely 6
- Avoid High Pressure Fluids 7
- Practice Safe Maintenance 7
- Tire Safety 7
- Prepare for Emergencies 8
- Wear Protective Equipment 8
- Handle Chemicals Properly 8
- Safety At All Times 9
- Safety Decals 10
- 818-055C 10
- 838-266C 10
- 838-265C 11
- 838-267C 11
- 818-590C 12
- 838-102C 12
- 818-337C 12
- 818-339C 13
- 818-682C 13
- 818-398C 13
- 818-587C 14
- 818-855C 14
- 818-752C 14
- Introduction 15
- Owner Assistance 16
- Preparation and Setup 17
- Color Hydraulic Function 18
- Leveling the Drill 19
- Frame Height 20
- Operating Instructions 21
- Field Operation 22
- Seed Lubricants 23
- Transporting 24
- Marker Operation 25
- Model 20P Only: 26
- All Models: 26
- Adjustments 27
- Ground Drive Adjustments 28
- Marker Adjustments 29
- Marker Disk Adjustment 30
- Marker Chain Adjustment 30
- Marker Speed 31
- Row Unit Adjustments 32
- Row Unit Down Pressure 33
- Cam Notch Pounds 34
- Row Unit Shutoff 36
- 25 Series Row Unit Lock-Up 37
- 25 Series Coulter Adjustments 38
- Side Gauge Wheel Adjustment 41
- Seed Firmer Adjustments 49
- Press Wheel Adjustment 51
- Troubleshooting 53
- Planting too much 54
- Acremeter does not 54
- Problem Cause Solution 54
- Uneven seed depth 56
- Excessive seed 56
- Maintenance and Lubrication 59
- Marker Maintenance 60
- Drive System Maintenance 62
- Opener Side Wheel Maintenance 63
- Opener Disc Maintenance 64
- Seed Tube Maintenance 65
- Grommet Maintenance 65
- Meter Maintenance 67
- Installation Steps 70
- Annual Maintenance 70
- Lubrication 71
- Seasonally 72
- Seed Monitor 73
- Hitch Setback Kit 74
- Gauge Wheels 74
- Baffle Kits 75
- Seed Tube Plug 75
- Weight Bracket Kit 75
- Unit-Mounted Disk Coulters 76
- 20 Series Seed Meter Wheels 77
- 25 Series Seed Meters 78
- 25 Seed Meter Wheels 78
- Scrapers 79
- Seed-Lok® Seed Firmer 79
- Keeton Seed Firmer 80
- Row Unit Press Wheels 80
- Appendix 81
- Torque Values Chart 82
- Marker Extension 83
- Model 2025P Marker Extension 87
- 109.25 in 87
- 277.50 cm 87
- Model 2520P Marker Extension 90
- Model 2525P Marker Extension 94
- Chain Routing 97
- 20 Series Meter Drive Chain 98
- 25 Series Meter Drive Chain 99
- Hydraulic Diagrams 100
- Warranty 101
- 118-231M 2013-05-10 102
- 2013-05-10 118-231M 103
- Salina, Kansas 67402-5060 USA 106
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