Page 1
Table of Contents Index
29852
Operator Manual
3-Point 40 Foot Yield-Pro
3PYPA
®
Planter
®
with Air-Pro
Seed Meters
Manufacturing, Inc.
www.greatplainsmfg.com
Read the operator manual entirely. When you see this symbol, the
subsequent instructions and warnings are serious - follow without
exception. Your life and the lives of others depend on it!
Illustrations may show optional equipment not supplied with standard unit or
may depict similar models where a topic is identical.
ORIGINAL INSTRUCTIONS
© Copyright 2019 Printed 2019-06-11 401-647M
Table of Contents Index
EN
Page 2
Machine Identification
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Record your machine details in the log below. If you replace this manual, be sure to transfer this information
to the new manual.
If you or the dealer have added options not originally ordered with the machine, or removed options that were
originally ordered, the weights and measurements are no longer accurate for your machine. Update the
record by adding the machine weight and measurements with the option(s) weight and measurements.
Model Number
Serial Number
Machine Height
Machine Length
Machine Width
Machine Weight
Year of Construction
Delivery Date
First Operation
Accessories
Dealer Contact Information
Name:
Street:
City/State:
Telephone:
Email:
Dealer’s Customer
No.:
Page 3
3PYPA Cover Index Table of Contents
Table of Contents
Important Safety Information.................................................1
Safety Decals ....................................................................5
Introduction...........................................................................11
Document Family .....................................................11
Models Covered ..............................................................11
Description of Unit ...........................................................11
Intended Usage ........................................................11
Using This Manual...........................................................12
Definitions.................................................................12
Owner Assistance............................................................12
Further Assistance...........................................................13
Preparation and Setup .........................................................14
Initial Setup......................................................................14
Post-Delivery/Seasonal Setup.........................................14
Pre-Planting Setup ..........................................................14
Hitching Tractor to Planter...............................................15
3-Point Hitching ........................................................15
Electrical Hookup .....................................................17
Hydraulic Hose Hookup............................................18
Raise Parking Stands...............................................21
Frame Height and Leveling .............................................22
Set Initial Planter Height...........................................22
Marker Setup ...................................................................23
Operating Instructions .........................................................24
Pre-Start Checklist...........................................................24
Monitor Operation............................................................24
Raising/Lowering Planter.................................................25
Folding the Planter ..........................................................26
Locking Pins .............................................................27
Wing Fold Steps.......................................................28
Lift Assist Cylinder Lock-Up.............................................28
Steering with Control Monitor ..........................................29
Steering System Selection .......................................29
Steering Calibration..................................................29
Advanced Setup .......................................................30
Diagnostics...............................................................30
Steering with Module Control ..........................................31
Steering Configuration Switch ..................................32
Steering Operation ...................................................33
Transport .........................................................................34
Typical 3PYPA Planter Weights ...............................35
Transport Steps........................................................35
Unfolding the Planter .......................................................36
Wing Unfold Steps....................................................37
Walkboard and Ladder Operations..................................38
Loading Materials ............................................................39
Prepare Air Box........................................................39
Prepare Hopper (if used)..........................................40
Mount Hopper or Bulk Seed Box..............................41
Dismounting a Seed Container .......................................43
Fertilizer Operation (Option)............................................43
Liquid Fertilizer Strainer ...........................................44
Air System Operation ......................................................45
Air System Overview................................................46
Electric Clutch Operation.................................................49
Electric Clutch Lock-Up............................................49
Clutch Switch Coverage...........................................50
Air-Pro Meter Operation ..................................................51
Meter Operation .......................................................51
Marker Operation (Option) ..............................................52
CFM and Marker Switch Priority ..............................52
Before Operating Markers........................................52
Marker Tilt-Up ..........................................................53
Marker Tilt-Down......................................................53
Marker Unfold (one side)..........................................53
Row Marker Operation .............................................53
Folding The Markers ................................................53
Field Set-Up Checklists ...................................................54
Field Operation................................................................56
Short-Term Parking.........................................................57
Long-Term Storage .........................................................58
Adjustments..........................................................................59
Setting Material Rates.....................................................60
Planting Rate............................................................60
Hydraulic Drive Rate ................................................60
Hitch Shims .....................................................................61
Height Switch Adjustment ...............................................61
Gauge Wheel Adjustments..............................................62
Gauge Wheel Tension .............................................62
Ground Drive Adjustments .......................................62
Hydraulic Down Pressure................................................63
Cart Weight Transfer................................................64
Marker Adjustments (Option) ..........................................64
Marker Disk Adjustment ...........................................64
Fan and Adjustment ........................................................65
Fine-Tuning .............................................................67
Seed Delivery Fan Adjustments...............................67
Liquid Fertilizer Adjustments (Option) .............................68
Fertilizer Orifice Plates.............................................68
Fertilizer Relief Valve ...............................................69
25 Series Row Unit Adjustments.....................................70
Row Unit Down Pressure .........................................71
© Copyright 2010, 2011, 2012, 2015, 2016, 2017, 2018, 2019. All rights Reserved
Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been
taken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed
for damages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products
as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.
Registered Trademarks of Great Plains Manufacturing, Inc. include: Air-Pro, Clear-Shot, Discovator, Great Plains, Land Pride, MeterCone,
Nutri-Pro, Seed-Lok, Solid Stand, Terra-Guard, Turbo-Chisel, Turbo-Chopper, Turbo-Max, Turbo-Till, Ultra-Till, Whirlfilter, and Yield-Pro.
Trademarks of Great Plains Manufacturing, Inc. include: AccuShot, Max-Chisel, Row-Pro,
Singulator Plus, Short Disk, Swath Command, Terra-Tine, Ultra-Chisel, and X-Press.
Brand and Product Names that appear and are owned by others are trademarks of their respective owners.
Printed in the United States of America
Great Plains | 401-647M | 2019-06-11 Cover Index iii
Page 4
3PYPA Cover Index Table of Contents
Unit-Mount Cleaner Adjustments .............................73
Coulter Adjustments.................................................74
Row-Unit Opener Disk Adjustments.........................76
Side Gauge Wheel Adjustment ................................77
Seed Meter Setup and Adjustment ..........................79
Air-Pro Meter Disk Installation..................................81
Row Unit Shut-Off ....................................................82
Seed Firmer Adjustments.........................................85
Press Wheel Adjustment ..........................................86
Troubleshooting ...................................................................89
Planting Rate Problems...................................................89
Seed Pool Troubleshooting .............................................90
Seed Pool Recovery.................................................91
Magnehelic Gauge Troubleshooting ........................91
Population Troubleshooting Charts .................................92
Steering Troubleshooting ................................................99
Steering Flash Error Codes....................................100
Maintenance and Lubrication............................................101
Maintenance ..................................................................101
Material Clean-Out ........................................................102
Air Box Clean-Out ..................................................102
Air System Clean-Out.............................................102
Meter Clean-Out.....................................................103
Meter Brush Maintenance .............................................105
Meter Brush Replacement......................................106
Seed Disk Maintenance .........................................107
Air Box Residue Clean-Out ...........................................108
Steering Maintenance....................................................109
Steering System Hydraulic Bleeding ......................109
Steering System Modes of Operation ....................109
Steering Calibration................................................109
Steering Configuration Switch ................................110
Wheel Sensor Calibration.......................................111
Emergency Moves Without Steering ......................113
Hydraulic Maintenance ..................................................114
Hydraulic Drive Maintenance (Option) ...................114
Bleeding Hydraulics.......................................................115
Lift Cylinder Bleeding .............................................116
Wing Flex Cylinder Bleeding ..................................117
Wing Fold Cylinder Bleeding ..................................117
Marker Maintenance (Option)........................................119
Marker Shear Bolt Replacement ............................119
Marker Chain Length Adjustment...........................119
Marker Tilt Cylinder Bleeding .................................120
Marker Fold Cylinder Bleeding ...............................121
Marker Grease Seal Cap........................................121
Chain Maintenance........................................................121
Meter Drive Chain ..................................................122
Spreaders and Scrapers................................................123
Row-Unit Side Wheels...................................................123
Seed Flap Replacement ................................................124
Fertilizer System Maintenance ......................................125
Lubrication .....................................................................126
Seed Lubricants.............................................................133
Options ................................................................................134
Appendix A - Reference Information ................................141
Specifications and Capacities, 1 of 2.............................141
Specifications and Capacities, 2 of 2.............................142
Tire Inflation Chart .........................................................142
Torque Values Chart .....................................................143
Hydraulic Diagrams .......................................................144
Chain Routing................................................................153
Row Unit Placement......................................................158
Appendix B - Initial and Option Setup..............................163
Post-Delivery Checklist .................................................163
Seed Monitor Console Installation.................................163
Steering with Control Monitor ........................................164
Steering with Control Module ........................................166
Install Tractor Steering Components.............................166
Steering Setup .......................................................166
Hopper Level Sensor Installation ...........................167
Radar Calibration ..........................................................167
Planter Leveling.............................................................168
Initial Marker Setup (Option) .........................................169
Marker Speed Adjustment......................................169
Marker Extension ...................................................170
Hydraulic Down Pressure Calibration (Option)..............171
PC Closed Down Pressure Calibration ..................171
LS Closed/PFC Down Pressure Calibration...........172
122-278S Scraper Installation.......................................173
Appendix R - Row-Pro™....................................................174
Row-Pro™ Troubleshooting..........................................181
Great Plains | 401-647M | 2019-06-11 Cover Index iv
Page 5
3PYPA Table of Contents Index Important Safety Information
Important Safety Information
Look for Safety Symbol
The SAFETY ALERT SYMBOL indicates there is a
potential hazard to personal safety involved and extra
safety precaution must be taken. When you see this
symbol, be alert and carefully read the message that
follows it. In addition to design and configuration of
equipment, hazard control and accident prevention are
dependent upon the awareness, concern, prudence and
proper training of personnel involved in the operation,
transport, maintenance and storage of equipment.
Be Aware of Signal Words
Signal words designate a degree or level of hazard
seriousness.
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
This signal word is limited to the most extreme situations,
typically for machine components that, for functional
purposes, cannot be guarded.
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury, and includes hazards that are exposed when
guards are removed. It may also be used to alert against
unsafe practices.
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury. It may also be used to alert against unsafe
practices.
Prepare for Emergencies
Be prepared if a fire starts
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctor, ambulance, hospital
and fire department near phone.
Be Familiar with Safety Decals
Read and understand “Safety Decals” on page 5,
thoroughly.
Read all instructions noted on the decals.
Keep decals clean. Replace damaged, faded and illegible
decals.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 1
Page 6
3PYPA Table of Contents Index Important Safety Information
Wear Protective Equipment
Wear protective clothing and equipment.
Wear clothing and equipment appropriate for the job.
Avoid loose-fitting clothing.
Because prolonged exposure to loud noise can cause
hearing impairment or hearing loss, wear suitable
hearing protection such as earmuffs or earplugs.
Because operating equipment safely requires your full
attention, avoid wearing entertainment headphones while
operating machinery.
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the skin,
causing serious injury. This planter requires a
Power-Beyond port, which is always under pressure
when the tractor is running.
Avoid the hazard by relieving pressure at other remotes,
and shutting down tractor before connecting,
disconnecting or inspecting hydraulic lines.
Use a piece of paper or cardboard, NOT BODY PARTS, to
check for suspected leaks.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems.
If an accident occurs, seek immediate medical assistance
from a physician familiar with this type of injury.
Handle Chemicals Properly
Agricultural chemicals can be dangerous. Improper use
can seriously injure persons, animals, plants, soil and
property.
Read and follow chemical manufacturer’s instructions.
Wear protective clothing.
Handle all chemicals with care.
Avoid inhaling smoke from any type of chemical fire.
Store or dispose of unused chemicals as specified by
chemical manufacturer.
Keep Riders Off Machinery
Riders obstruct the operator’s view. Riders could be
struck by foreign objects or thrown from the machine.
Never allow children to operate equipment.
Keep all bystanders away from machine during operation.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 2
Page 7
3PYPA Table of Contents Index Important Safety Information
22
32
5
Tire Safety
Tire changing can be dangerous and should be
performed by trained personnel using correct tools and
equipment.
When inflating tires, use a clip-on chuck and extension
hose long enough for you to stand to one side–not in front
of or over tire assembly. Use a safety cage if available.
When removing and installing wheels, use wheel-handling
equipment adequate for weight involved.
Use Safety Lights and Devices
Slow-moving tractors and towed implements can create
a hazard when driven on public roads. They are difficult
to see, especially at night.
Use flashing warning lights and turn signals whenever
driving on public roads.
Use lights and devices provided with implement
Transport Machinery Safely
Maximum transport speed for implement is 20 mph
(32 km/h).
Maximum speed in turns is 13 mph (22 km/h).
Some rough terrains require a slower speed. Sudden
braking can cause a towed load to swerve and upset.
Do not exceed 20 mph (32km/h). Never travel at a speed
which does not allow adequate control of steering and
stopping. Reduce speed if towed load is not equipped with
brakes.
Comply with state and local laws.
Do not tow an implement that, when fully loaded, weighs
more than 1.5 times the weight of towing vehicle.
Carry reflectors or flags to mark planter in case of
breakdown on the road.
Keep clear of overhead power lines and other
obstructions when transporting. Refer to transport
dimensions under “Specifications and Capacities, 1 of 2”
on page 141.
Do not fold or unfold the planter while the tractor is
moving
Shutdown and Storage
Lower planter, put tractor in park, turn off engine, and
Secure planter using blocks and supports provided.
Detach and store planter in an area where children
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 3
remove the key.
normally do not play.
Page 8
3PYPA Table of Contents Index Important Safety Information
Practice Safe Maintenance
Understand procedure before doing work. Use proper
tools and equipment. Refer to this manual for additional
information.
Work in a clean, dry area.
Lower the planter, put tractor in park, turn off engine,
and remove key before performing maintenance.
Make sure all moving parts have stopped and all system
pressure is relieved.
Allow planter to cool completely.
Disconnect battery ground cable (-) before servicing or
adjusting electrical systems or before welding on
planter.
Inspect all parts. Make sure parts are in good condition
and installed properly.
Remove buildup of grease, oil or debris.
Remove all tools and unused parts from planter before
operation.
Safety At All Times
Thoroughly read and understand the instructions in this
manual before operation. Read all instructions noted on
the safety decals.
Be familiar with all planter functions.
Operate machinery from the driver’s seat only.
Do not leave planter unattended with tractor engine
running.
Do not stand between the tractor and planter during
hitching.
Keep hands, feet and clothing away from power-driven
parts.
Wear snug-fitting clothing to avoid entanglement with
moving parts.
Watch out for wires, trees, etc., when folding and raising
planter. Make sure all persons are clear of working area.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 4
Page 9
3PYPA Table of Contents Index Important Safety Information
To install new decals:
1. Clean the area on which the decal is to be placed.
2. Peel backing from decal. Press firmly on surface,
being careful not to cause air bubbles under decal.
29858
29858B
Safety Decals
Safety Reflectors and Decals
Your implement comes equipped with all lights, safety
reflectors and decals in place. They were designed to
help you safely operate your implement.
Read and follow decal directions.
Keep lights in operating condition.
Keep all safety decals clean and legible.
Replace all damaged or missing decals. Order new
decals from your Great Plains dealer. Refer to this
section for proper decal placement.
When ordering new parts or components, also request
corresponding safety decals.
Slow Moving Vehicle Reflector
818-055C
On the back of the walkboard platform;
one total
Red Reflector
838-266C
On the back of seed box support structure each end
(above wheels)
and on the back of the wing tool bars, each end:
four total
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 5
Page 10
3PYPA Table of Contents Index Important Safety Information
29858
29858B
29858B
Amber Reflectors
838-265C
(S/N B1128J-) On the front of the center section front
lower tool bars,
on the front end of each wing;
four total.
(S/N B1129J+) On a bracket on the outside of each
parking stand,
on outside of each caster wheel support;
four total.
Daytime Reflectors
838-267C
On the back of seed box support structure each end
(above wheels) and on the back of the wing tool bars,
each end;
four total
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 6
Page 11
3PYPA Table of Contents Index Important Safety Information
29858C
29858C
29858B
To prevent serious injury or death:
Stay away from power lines when
transporting, extending or folding
implement.
Electrocution can occur without
contacting power lines.
838-599C
ELECTROCUTION HAZARD
DANGER
Read Manual
848-512C
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING:
848-512C
On front of center section;
1 total
Danger: Crushing Hazard
818-590C
On tool bar next to parking stand,
each side, two total
Danger: Electrocution Hazard
838-599C
On marker section each end;
two total
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 7
Page 12
3PYPA Table of Contents Index Important Safety Information
29858D
29858C
818-188C Rev. C
Do Not exceed 20 mph maximum transport
speed. Loss of vehicle control and/or machine
can result.
To Prevent Serious Injury or Death:
EXCESSIVE SPEED HAZARD
WARNING
29858B
Warning: Pinch/Crush
818-045C
On marker base, inside face, each end,
On wing arm link, each side
On wing rest, each side;
six total
Warning: Speed
818-188C
On front of center section;
one total
Warning: Pinch/Shear Hazard
818-579C
Front face of marker base bracket;
two total
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 8
Page 13
3PYPA Table of Contents Index Important Safety Information
29858B
29858B
29858E
Warning: Overhead Hazard
818-580C
On marker section each end;
two total
Warning: Moving Parts
818-860C
Option: On tool bar inboard of ground drive gauge wheel
each side,
two total
Warning: High Pressure Fluid Hazard
818-339C
On front of center section,
on each side of rear mainframe at parallel arms;
three total
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 9
Page 14
3PYPA Table of Contents Index Important Safety Information
29858E
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Read Owner’s Manual before using machine.
Stand clear when folding and unfolding markers.
Stand clear when raising and lowering machine.
Keep all safety shields and devices in place.
Keep hands, feet, and clothing away from
Never ride on machine.
Always lower or properly support machine
Escaping hydraulic fluid can cause serious
Review safety instructions with all operators
moving chains and sprockets.
BEFORE servicing.
818-587C Rev. B
injury.
annually.
CAUTION
29858B
Caution: Read Operator’s Manual
818-078C
On center tool bar;
one total
Caution: Tires Not A Step
818-398C
Above all four tires;
four (4) total
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 10
Page 15
3PYPA Table of Contents Index Introduction
Document Family
Figure 1
Planter
29852
401-647M Operator Manual (this document)
401-647B Seed Rate Charts
401-647P Parts
401-647Q Pre-Delivery Manual
403-857M Swath Command™ Operator Manual
DICKEY-john
®
IntelliAg® Manuals:
11001-1662 Planter/Drill Control, User Level 1
11001-1501A Planter/Drill Control, User Level 2&3
110011531 3PYPA-1236, -1238, -1240 Quick-Start Guide
110011530 3PYPA-1630 Quick-Start Guide
110011528
3PYPA-24TR36, -24TR38, -24TR40
Quick-Start Guide
Note
a
a. Part number was pending at time of publication. Have your
dealer obtain the QSG for your planter.
3PYPA-3115 Quick-Start Guide
110011529 3PYPA-32TR30 Quick-Start Guide
110011126
DICKEY-john
®
Hopper Level Sensor Install
110011561A
DICKEY-john® Auto Section Control
110011572
DICKEY-john® Down Pressure Control
L
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U
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Dealer QRC
The QR Code (Quick Reference) to the
left will take you to available dealers for
Great Plains products. Refer to the Parts
Manual QR Locater for detailed
instructions.
Manual Family QRC
The QR Code (Quick Response) to the
left will take you to this machine’s family
of manuals. Use your smart phone or
tablet to scan the QR Code with an
appropriate App to begin viewing.
Introduction
Great Plains welcomes you to its growing family of new
product owners. The 3-Point 40 Foot Yield-Pro
with Air-Pro
designed with care and built by skilled workers using
quality materials. Proper setup, maintenance, and safe
operating practices will help you get years of satisfactory
use from the machine.
®
Seed Meters (3PYPA Planter) has been
Models Covered
3PYPA-1236 12-Row, 36-Inch Spacing
3PYPA-1238 12-Row, 38-Inch Spacing
3PYPA-1240 12-Row, 40-Inch Spacing
3PYPA-1630 16-Row, 30-Inch Spacing
3PYPA-24TR36 24-Row (12 Twin), 36-Inch Spacing
3PYPA-24TR38 24-Row (12 Twin), 38-Inch Spacing
3PYPA-24TR40 24-Row (12 Twin), 40-Inch Spacing
3PYPA-3115 31-Row, 15-Inch Spacing
3PYPA-32TR30 32-Row (16 Twin), 30-Inch Spacing
Description of Unit
The 3PYPA Planter is a semi-mounted implement with
optional unit mounted coulters. The unit mounted
coulters make it suitable for light to moderate no-till
conditions only. The 3PYPA includes 25 Series openers
with Air-Pro Meters supporting a wide choice of seed
disks. The planter stack-folds for transport.
Intended Usage
Use the 3PYPA Planter to seed production-agriculture
crops only. It is suitable for conventional till, min-till and
moderate no-till conditions. Do not modify the planter for
use with attachments other than Great Plains options
and accessories specified for use with the 3PYPA.
®
Planter
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 11
Page 16
3PYPA Table of Contents Index Introduction
U
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Figure 2
Serial Number Plate
29189
Using This Manual
This manual will familiarize you with safety, assembly,
operation, adjustments, troubleshooting, and
maintenance. Read this manual and follow the
recommendations to help ensure safe and efficient
operation.
The information in this manual is current at printing.
Some parts may change to assure top performance.
Definitions
The following terms are used throughout this manual.
A crucial point of information related to the preceding topic.
Read and follow the directions to remain safe, avoid serious
damage to equipment and ensure desired field results.
Useful information related to the preceding topic.
Right-hand and left-hand as used in
this manual are determined by facing
the direction the machine will travel
while in use unless otherwise stated.
An orientation rose in some line art
illustrations shows the directions of:
Up, Back, Left, Down, Front, Right.
Owner Assistance
If you need customer service or repair parts, contact a
Great Plains dealer. They have trained personnel, repair
parts and equipment specially designed for Great Plains
products.
Refer to Figure 2
Your machine’s parts were specially designed and
should only be replaced with Great Plains parts. Always
use the serial and model number when ordering parts
from your Great Plains dealer. The serial-number plate is
located on the left end of the seed cart tool bar.
Record your 3PYPA Planter model and serial number
here for quick reference:
Model Number:__________________________
Serial Number: __________________________
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 12
Page 17
3PYPA Table of Contents Index Introduction
Further Assistance
Great Plains Manufacturing, Inc. and your Great Plains
dealer want you to be satisfied with your new planter. If
for any reason you do not understand any part of this
manual or are otherwise dissatisfied, please take the
following actions first:
1. Discuss the matter with your dealership service
manager. Make sure they are aware of any problems
so they can assist you.
2. If you are still unsatisfied, seek out the owner or
general manager of the dealership.
If your dealer is unable to resolve the problem or the
issue is parts related, please contact:
Great Plains Service Department
1525 E. North St.
P.O. Box 5060
Salina, KS 67402-5060
Or go to www.greatplainsag.com and follow the contact
information at the bottom of your screen for our service
department.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 13
Page 18
3PYPA Table of Contents Index Preparation and Setup
Preparation and Setup
This section helps you prepare your tractor and 3PYPA
Planter for use, and covers tasks that need to be done
seasonally, or when the tractor/planter configuration
changes.
Before using the planter in the field, you must hitch it to a
suitable tractor, inspect systems and level the planter.
Before using the planter for the first time, and periodically
thereafter, certain adjustments and calibrations are
required.
Initial Setup
See “Appendix B - Initial and Option Setup” on
page 163 for pre-delivery items (normally completed by
dealer), and first-time/infrequent setup tasks, including:
• Install seed monitor console in tractor (page 163).
• Set initial down-pressure (option, page 171).
• Install Options not factory- or dealer-installed.
Post-Delivery/Seasonal Setup
On initial delivery, use with a new tractor, and seasonally,
check and as necessary, complete these items before
continuing to the routine setup items:
• Install seed monitor console in tractor (page 163).
• Bleed hydraulic system (page 115).
• Check center section and wing level (page 168).
• Radar calibration (page 167).
• De-grease exposed cylinder rods if so protected at
last storage.
Pre-Planting Setup
Complete this checklist before routine setup:
Read and understand “Important Safety
Information” on page 1.
Check that all working parts are moving freely, bolts
are tight, and cotter pins are spread.
Check that all zerks are in place and lubricated. See
“Lubrication” on page 126.
Check that all safety decals and reflectors are
correctly located and legible. Replace if damaged.
See “Safety Decals” on page 5.
Inflate tires to pressure recommended and tighten
wheel bolts as specified. See “Tire Inflation Chart”
on page 142.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 14
Page 19
3PYPA Table of Contents Index Preparation and Setup
Figure 3
Hitch Spacers
29861
14
1
2
11
U
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13
12
3
12
12111213
14
11
14
12
131114
12
Hitching Tractor to Planter
Crushing Hazard:
Do not stand or place any body part between planter and
moving tractor. You may be severely injured or killed by being
crushed between the tractor and planter. Stop tractor engine
and set parking brake before attaching cables and hoses.
3-Point Hitching
Refer to Figure 3
The left arm of the tractor 3-point hitch is secured and
prevented from shifting laterally. The right arm is
allowed to float on the pin.
The objective is to align the planter center-line with the
tractor center-line.
1. The planter includes several spacers to position and
secure the left arm of the 3-point hitch:
1 401-630H SPACER 3 PT 1 1/2 X 2
5 411-442D LOWER 3PT PIN SPACER 1/2 THK
2 411-448D LOWER 3PT PIN SPACER 1/4 THK
1 411-449D TUBE 3" X 1 1/2" X 1/2" LONG
2. The tube spacers ( and ) are always used, and
are typically positioned on the right and left of the
tractor hitch arm.
3. Insert open-end spacers ( and ) to the left of
the smaller tube spacer to achieve center-line
alignment. The following table has recommendations
for specific tractors.
Spacers
3
/8inch
Tractor
Model
Case Magnum/MX to Left 1 to Left
Deere 8000 to Left None
4. Add a combination of the remaining spacers to
eliminate any slack space on the pin, and minimize
side-to-side play during operations.
Tube
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3PYPA Table of Contents Index Preparation and Setup
Figure 4
Hitching Planter
(Top Link Not In Use)
29211
2
3
4
234
Figure 5
Rod-End Lug Parallel Arm Lug
29201
5
6
566
5
5. Secure both sets of spacers with the provided 3/8-13 bolts, lock washers and nuts.
Load Shift and Field Tracking Risks:
Adjust 3-point hitch arms and sway blocks to minimize any
side-to-side sway to assure proper tracking in the field and
safe road travel.
Refer to Figure 4
6. Connect your lower tractor 3-point arms to the
planter 3-point hitch. If using quick hitch be sure
planter locks into hitch securely.
This is a semi-mounted implement.
• The flexible top link , may be used, with care, in
certain situations.
• If the top link is not used, you may optionally use
lift-assist weight transfer to apply some of the cart
weight to the openers during planting.
Excess 3-point Weight and Steering Hazard:
Do not use the top-link and weight-transfer capabilities at the
same time. Planter caster wheels may lift off ground. Tractor
steering wheels may lose effectiveness. An accident is possible,
resulting in serious injury or death, and planter damage.
Refer to Figure 5
If using lift-assist weight-transfer (and not using the
3-point top link), make sure the parallel arms are
configured as follows:
7. Install the lift-assist weight-transfer pins . The pins
are stored in a plate behind the cart parallel arm
pivot weldment. Install them in the large holes at the
bottom of the rod-end lug in the frame-to-cart parallel
arms.
8. Remove the lift-assist shear bolts from the small
holes below the lift-assist rod-end lug upper pivot
pin. Store the bolts in the plates behind the cart
parallel arm pivot weldments.
If using the 3-point top link, make sure the parallel arms
are configured as follows:
9. Install the lift-assist shear bolts. Spare bolts are
stored in a plate behind the cart parallel arm pivot
weldment. Secure the bolt in the small hole below
the lift-assist rod-end lug upper pivot pin.
10. Remove the lift-assist weight-transfer pins . These
are located at the bottom of the rod-end lug in the
frame-to-cart parallel arms. The pin is stored in a
plate behind the cart parallel arm pivot weldment.
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3PYPA Table of Contents Index Preparation and Setup
3
4
Figure 6
Connector Identifica
1
2
3
123
Refer to Figure 4 on page 16
11. Connect the flexible top link only for field
operations and maintenance (never for transport).
Adjust the top link with the tractor turnbuckle and the
sliding link .
For field operations, adjust the top link so that it is
slack with the planter lowered, and taut near the top
of hitch travel with the planter raised. The goal is to
reduce the weight borne by the rear lift assist
cylinders, and reduce any tendency for the tires to
dig on end-of-pass turns and during backing.
12. Raise tractor 3-point just enough to relieve pressure
from the bases of the parking stands.
Electrical Hookup
Refer to Figure 6
Your planter is equipped with several standard and
optional devices that require separate electrical
connections. For future reference, note any optional
connectors on this checklist.
Lighting connector (standard)
Monitor connector (standard)
Steering connector (standard)
__________________________
__________________________
__________________________
Make sure tractor is shut down with accessory power off
before making connections.
These connections may be made in any order. The key
requirement is that all connections be made prior to
planter movement.
Consoles and switch control boxes should be
mounted in your tractor cab in a location with easy
access. Route wiring harnesses with enough slack to
allow for tractor movement, especially on articulating
tractors.
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3PYPA Table of Contents Index Preparation and Setup
Figure 7
Color Coded Hose Handles
Hydraulic Hose Hookup
High Pressure Fluid Hazard:
Shut down tractor before making hydraulic connections. The
planter requires a power-beyond connection. Power-beyond
ports are always under pressure when the tractor is running.
Attempting a connection is likely to result in injury. Only
trained personnel should work with system hydraulics.
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. If an accident
occurs, seek immediate medical assistance from a physician
familiar with this type of injury.
Use paper or cardboard, NOT BODY PARTS, to check for
leaks. Wear protective gloves and safety glasses or goggles
when working with hydraulic systems.
Refer to Figure 7
Great Plains hydraulic hoses have color coded handle
grips to help you hookup hoses to your tractor outlets.
Hoses that go to the same remote valve are marked with
the same color.
Current Style Color Coded Hose Handles
Color Hydraulic Function
Steering (no color code)
Black Fan
Gray Wing Fold / Marker Tilt/Fold
Blue Lift / Down Pressure
Yellow Hydraulic Drive
To distinguish hoses on the same hydraulic circuit, refer
to the symbol molded into the handle grip. Hoses with an
extended-cylinder symbol feed cylinder base ends.
Hoses with a retracted-cylinder symbol feed cylinder rod
ends.
For hydraulic fan and drive motors, connect the hose
under the retracted cylinder symbol to the pressure side
of the motor. Connect the hose under the extended
cylinder symbol to the return side of the motor.
The fan motor further requires hookup of a third line,
which returns hydraulic fluid from the fan motor case.
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3PYPA Table of Contents Index Preparation and Setup
Figure 8
Older Style Hoses w/Label
27270
Older Style Hoses with Color Ties
Refer to Figure 8 and Figure 9 on page 20
Hydraulic hoses, for all circuits except steering, are color
coded to help you hookup hoses to your tractor outlets.
Hoses that go to the same remote valve are marked with
the same color tie.
Color Hydraulic Function
Steering (no color code)
Orange Fan
White Wing Fold / Marker Tilt/Fold
Blue Lift / Down Pressure
Yellow Hydraulic Drive
Refer to Figure 8
To distinguish hoses on the same hydraulic circuit, refer
to hose label. The hose under an extended-cylinder
symbol feeds a cylinder base end. The hose under a
retracted-cylinder symbol feeds a cylinder rod end.
For hydraulic fan and drive motors, connect the hose
under the retracted cylinder symbol to the pressure side
of the motor. Connect the hose under the extended
cylinder symbol to the return side of the motor.
Secure hoses and cables so that they have sufficient
slack for hitch movements, but cannot get caught
between moving parts of planter. Failure to safely route
and secure hoses and cables could result in damage
requiring component repair/replacement, and lost field
time.
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3PYPA Table of Contents Index Preparation and Setup
Machine Damage Risk:
Steering system hoses must be connected, or casters may
remain locked at their last used orientation. If casters cannot
steer or float, any attempt at movement may cause damage. If
steering hoses cannot be connected, also leave the steering
system off, and make only careful forward moves.
Figure 9
Fan and Steering Hoses
29721
1
2
3
4
6
5
12364
5
1. Shut down tractor before making any hydraulic
connections. A Power-Beyond connection cannot be
made while hydraulics are live.
2. Connect the steering/fan case drain line first,
before making any other connections. Connect this
line to a low pressure drain port.
Case drain hose has the smaller
and small, flat-face, connector.
Machine Damage Risk:
DO NOT connect the fan/steering case drain line to a
power-beyond-port. Case Drain Hose must be attached first,
prior to inlet and return hoses being connected. Case Drain
Hose must be detached last, to prevent damage to the fan
motor.
3. Connect the load-sense line second. Connect this
to the load-sense port associated with the
power-beyond port pair to be used for steering. This
line is provisioned with a very small QD-style
connector.
4. Connect the steering/fan circuit low pressure return
hose third. This hose is connected to a tee at
the control valve. Connect this hose to a low
pressure return connector.
Steering/fan pressure return hose has a large
(1.06 inch / 2.7 cm diameter) quick coupler.
5. Connect the steering circuit high pressure hose
fourth. Connect this hose to the pressure side of the
Power-Beyond port.
6. Connect the fan motor pressure hose fifth. If the
tractor has a priority remote, use it for the fan
connection.
7. Connect the remaining circuits to tractor remotes:
1
/4inch I.D. hose
• Lift (Standard) / Down Pressure (Option)
• Wing (Standard) / Marker (Option)
• Hydraulic Drive (Option)
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Figure 10
Raising Parking Stand
25240
1
2
3
4
12314
5
Figure 11
Parking Stand Raised
25241
5
4
Raise Parking Stands
Refer to Figure 10
1. If not already at minimum length, remove lower
pin of parking stand, fully retract the inner leg ,
and reinsert pin.
2. Remove upper (holding) pin of parking stand (at
bottom of hinge bracket).
Refer to Figure 11
Crushing or Impact Injury Hazard:
Do not stand directly in front of the stand while raising it. You
need to have one hand free to insert the pin, and if you lose
your grip on the stand, it can swing down and inflict injury.
3. Swing the parking stand forward and up until it is
above the rear hole. Place the holding pin in the
rear-most top hole of the hinge plate. This is the
parking stand position for transport and field
operation.
4. If planter is equipped with row cleaners, the stand
may not be able to get fully vertical. It may be
necessary to use front top hole .
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3PYPA Table of Contents Index Preparation and Setup
Figure 12
Setting Hitch/Center Height
25435
Planting Depth/Uniformity Risk:
Level frame in planting conditions. Failure to do so may result
in machinery not producing desired results.
Figure 13
Leveling on Beds
29193
Frame Height and Leveling
All frame sections must be at the correct height and level
to maintain even planting depth.
Periodic frame-leveling adjustments should not be
necessary unless the depth control stop has changed
since last leveling. If you are having problems with
uneven depth, check planter levelness and follow these
procedures.
1. Complete the steps under “Bleeding Hydraulics” on
page 115, before proceeding.
2. Before first use, and as necessary thereafter,
complete or check:
“Center Section Leveling” on page 168,
“Wing Leveling” on page 168, and
“Hydraulic Down Pressure Calibration (Option)”
on page 171.
3. Unfold the planter fully. “Unfolding the Planter” on
page 36.
Set Initial Planter Height
Refer to Figure 12
The planter is designed to operate with the main tool bar
26 inch (66 cm) above the planting surface (level ground
or bed peaks).
Tractor 3-point control must be in Depth Control
mode, and not Draft Control mode.
When lowering the planter for the first time on the
planting ground:
4. Completely lower the 3-point.
5. Completely lower the Lift Assist. If necessary, first
raise lift off transport locks, remove and stow locks.
6. Raise the 3-point until the tool bar is
26 inches (66 cm) above the planting surface.
7. Set the cab 3-point lever stop to capture this
“lowered” height.
On beds, it will further be necessary to use
customer-supplied blocks to raise the down-stop position
of the lift assist cylinders. One way to accomplish this is:
Refer to Figure 13
8. Place a carpenter’s level on a side tube of the center
frame. Have an assistant stand a safe distance away
and observe it.
9. With the 3-point lowered to the 26 inch stop,
incrementally raise the lift assist until the frame is
level.
10. Check that the front tool bar is at 26 inches above
planting surface. If not, adjust stop and repeat
step 9.
11. Measure the length of exposed rod on the lift
cylinders. Provision two (sets of) blocks in that length
(or stacked to that length).
12. Fully raise the lift assist and insert the blocks.
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3PYPA Table of Contents Index Preparation and Setup
Marker Setup
Prior to first use, check and adjust:
• “Marker Speed Adjustment” on page 169.
Prior to first use, and whenever changing row spacings,
set or reset:
• “Marker Extension” on page 170.
Each season, check and adjust:
• “Marker Chain Length Adjustment” on page 119
and
Prior to each planting session, check and adjust:
• “Marker Disk Adjustment” on page 64.
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High Pressure Fluid Hazard:
Relieve pressure and shut down tractor before connecting,
disconnecting or checking hydraulic lines. Use a piece of
paper or cardboard, NOT BODY PARTS, to check for leaks.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems. Escaping fluid under pressure
can have sufficient pressure to penetrate the skin causing
serious injury. If an accident occurs, seek immediate medical
assistance from a physician familiar with this type of injury.
Figure 14
A1 / A100 Console & CFM Panel
25421
29871
Marker Fold
Marker Tilt
FRAME
Wing Fold
Right
CLUTCH
Center
Left
MASTER
2
1
1
2
Operating Instructions
This section covers general operating procedures.
Experience, machine familiarity, and the following
information will lead to efficient operation and good
working habits. Always operate farm machinery with
safety in mind.
Pre-Start Checklist
Perform the following steps before transporting the
planter to the field.
Carefully read “Important Safety Information” on
page 1.
Install seed disks appropriate for crop. See “Air-Pro
Meter Disk Installation” on page 81.
Lubricate planter as indicated under “Lubrication”
on page 126.
Check all tires for proper inflation. See “Tire
Inflation Chart” on page 142.
Check all bolts, pins, and fasteners. Torque as
shown in “Torque Values Chart” on page 143.
Check planter for worn or damaged parts. Repair or
replace parts before going to the field.
Check hydraulic hoses, fittings, and cylinders for
leaks. Repair or replace before going to the field.
Monitor Operation
Refer to Figure 14
The monitor system includes two cab components:
®
IntelliAg
IntelliAg
seed monitor console, and
®
clutch-folding module (switch panel)
Clutch Folding Module (CFM) switch panel operations
are described in this section.
Monitor console operation is described in separate
manuals supplied with your planter. Operations covered
in those manuals (and therefore not in this manual)
include:
• hydraulic drive control
(option)
• setting rate limits and
detecting out-of-limits
• seed rate calibration • GPS integration
• planting rate • Swath Command™
• fertilizer rate • Row-Pro™
section control
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Machine Damage Risk:
Do not raise or lower while any planter folding operations are
underway or partially complete.
Always raise planter for reverse/backing operations.
Figure 15
Planter Raised
29192
Raising/Lowering Planter
Refer to Figure 15
(which depicts the planter both raised and unfolded)
Planter raising relies on the 3-point hitch in front, and the
Lift Assist cylinders in back. To raise or lower the planter,
move the levers for both the Lift circuit and the 3-point
hitch.
Great Plains recommends this sequence (to prevent
lateral dragging of wing components):
• in Raising, operate the planter Lift circuit first, and
• in Lowering, operate the hitch circuit first.
The planter may be raised or lowered in either the folded
or unfolded configuration.
The lift assist circuit may also include the optional down
pressure system. This system engages and disengages
automatically.
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Figure 16 - Planter Folding
25243
25244
25245
Folding the Planter
Fold the planter for moves between fields and over
public roads. Fold the planter on level ground with the
tractor in Park.
Do not allow anyone to be on or near the planter, or
beyond the ends of the planter during unfolding.
Numerous pinch and crush points exist in the mechanism.
The wings are massive. Coulters and row openers are
sharp.
Machine Damage Risk:
Machine damage will occur if wing flex and lock pins are not
properly configured for folding. Follow the instructions on the
following pages carefully.
Fold only with markers resting in transport cradles.
Fold only if hydraulics are bled free of air and fully
charged with hydraulic oil.
Stay away from frame sections when they are being
raised.
Keep away and keep others away when folding planter.
Pinch Point and Crushing Hazard:
To prevent serious injury or death:
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3PYPA Table of Contents Index Operating Instructions
Figure 17
Wing Lock Pin Locations
25248
3
2
1
312
Figure 18
Wing Lock & Pin Storage
25247
2
3
3
2
1
2
221
1
Locking Pins
Refer to Figure 17
Each wing has two removable pins, stored in the parking
stand when not in use:
• Wing Flex Lock Pin
Required to stabilize pivot during folding and
unfolding. Used during planting to prevent wing flex.
• Wing Lock Pin
Used to connect the wing tool bar to the center
section tool bar during planting operations, and keep
the wing tool bar at the same height as the
mainframe tool bar. When this pin is installed at the
coupling, the outer wing is either rigid, or can flex
(depending on the planter “flex” configuration)
The following table summarizes pin use.
Machine Damage Risk:
The INNER pins must be IN and the OUTER pins must be
OUT during folding and unfolding, or machine damage will
result.
Pin Location During Comments
Wing Lock
Wing Lock
Flex Lock
Flex Lock
Stowed
Tool bar Coupling
Stowed
Wing Arm Pivot
• Planter Folded
• Planting
• Planting
• Folding/Unfolding
• At all times on “Flex
Lock” planters
Must be removed from coupling during folding and
unfolding or machine damage will result.
Must be removed from coupling during folding and
unfolding or machine damage will result.
Must be present in pivot during folding and unfolding
or machine damage will result.
Must be present in pivot during folding and unfolding
or machine damage will result.
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Figure 19
CFM Before Wing Fold
29869
Figure 20
CFM During Wing Fold
29870
Figure 21
CFM After Wing Fold
29869
Figure 22
Transport Lock Storage
25439
2
1
1
2
Wing Fold Steps
1. Put tractor in Park.
2. Make sure the inner wing flex lock pins are in place
in the pivot (page 27).
3. Make sure the outer wing lock pins are out of the tool
bar coupling (page 27).
Machine Damage Risk:
Wing pins must be inner-in and outer-out during wing folding
and unfolding, or machine damage will occur.
No pins are required to lock the planter in the folded
configuration.
Refer to Figure 19
4. Set all DICKEY-john
®
CFM FRAME switches off
(down).
5. Raise planter (see “Raising/Lowering Planter” on
page 25).
Refer to Figure 20
6. Set CFM FRAME switch “Wing Fold” to on (up).
7. Activate (normally Extend) tractor hydraulic circuit to
unfold wings.
8. When fully folded, set hydraulic circuit to off.
Refer to Figure 21
9. Set “Wing Fold” switch to off.
Wing Fold switch has priority over Marker switches.
If Wing Fold switch is left on, marker operations are
disabled.
MASTER
MASTER
MASTER
Left
Center
Left
Center
Left
Center
CLUTCH
CLUTCH
CLUTCH
Right
Right
Right
Wing Fold
Wing Fold
Wing Fold
Marker Tilt
Marker Tilt
Marker Tilt
Marker Fold
FRAME
Marker Fold
FRAME
Marker Fold
FRAME
Lift Assist Cylinder Lock-Up
When moving the raised planter more than a short
distance, or over any paved surface, do not rely solely on
the lift cylinders to keep it raised. Install transport locks.
Refer to Figure 22
1. Remove the transport locks from their storage
positions. Do not store the locking pins on the empty
storage tabs.
2. Fully raise the planter (using both 3-point and lift
assist).
3. Remove any height adjusting blocks from the lift
assist cylinders.
4. Install the transport locks on the cylinder rods ,
securing them with the same pins used for storage.
5. Lower the lift assist cylinders onto the locks. Leave
the 3-point raised.
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Figure 23
Steering System Screen
68247A
Figure 24
Steering Calibration Screen
68247H
Steering with Control Monitor
(APPLIES TO ALL PLANTERS
S/N B1127J+)
Steering System Modes of Operation
There are two modes of operation for the steering
system on the 3PYP and 3PYPA Planters. Which mode
of operation to use is based on whether the tractor is
manually steered or has an auto-steer system.
If the tractor is manually steered then the Planter
steering system should be set to “Steer While Planting”
mode. In this mode the Planter steering system is always
active.
Steering System Selection
Tap the ‘3PYP’ soft key to open the 3PYP Steering
System screen. In order to enable steering, tap the
soft key for ‘Master Steering System.’ Your machine now
has the steering system enabled. In order to use the
steering system for planting, tap the soft key for
‘Steer While Planting.’
Tap the soft key to disable any of these selections.
Steering Calibration
The hydraulic steering system has calibration modes for
caster and tractor wheel sensors. To perform one of
these calibrations, first fully connect your planter to the
tractor, level the machine, and set it on a reasonably flat
surface large enough for simple operation. Then select
and proceed to the calibration instructions screen.
Machine calibration requires you make three separate
movements with the machine: left, center, and right. After
each of these movements, click the ‘Press to Save’
button followed by ‘Next’ to proceed to the next
calibrations step. Once all three movements are
performed and saved, machine calibration is complete.
Hydraulic-powered planter hydraulic steering is standard
on the planter planter.
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3PYPA Table of Contents Index Operating Instructions
Figure 25
Steering Advanced Setup Screen
68247C
Figure 26
Steering Diagnostics Screen
68247E
Advanced Setup
Advanced Setup grants access to more factory settings.
Many of these should only be changed by a certified
Great Plains dealer. However, if you need to alter your
settings for either tractor, CANBus, or ISOBus steering,
you can make that change in your terminal’s advanced
setup page.
To access the advanced setup screen, go to the initial
steering calibration screen and tap on ‘Advanced Setup’
. A number pad will prompt you for the level 2
access code. Tap in ‘344787’ and you should see the
‘Advanced Setup’ screen appear. Now you can tap on a
box next to the steering you want to select it for use. Tap
on the home icon to exit when finished.
NOTE: Unavailable Steering
If a steering system is unavailable, its name will have
a line struck through it on your screen. Check your
onboard CPU if your system appears unavailable.
Diagnostics
Tap on the diagnostics icon to analyze machine sensor
feedback and check for any problems your planter may
be experiencing.
An unfilled circle indicates the machine’s function is
normal. If a circle is filled red , then the sensors have
either detected an open (disconnected) circuit or a short
circuit has occurred. Check the appropriate area of the
machine to assess the problem.
If a circle is filled gray , then the sensors detected an
error has occurred but was cleared.
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Figure 27: Calibration
Steering Control Module Front View
29850
32
1
4
6
5
Figure 28
S/N B1026J- Module Rear View
31775
1
Figure 29
S/N B1027J+ Module Rear View
31698
7
2
Steering with Module Control
(APPLIES TO ALL PLANTERS
S/N B1026J- through B1027J+)
Hydraulic-powered planter steering is standard on
planters. Before using the system for transport or field
operations, calibrate the ECU
Steering controls caster position. When the hydraulic
steering system is active, the casters steer to match the
turning radius of the tractor. This prevents wheel digging
in soft soils, and minimizes field damage when backing
and turning on beds.
Refer to Figure 27, Figure 28, and Figure 29
When engaged (via switch ), the system functions
automatically, and is active for all forward and reverse
movements up to 8.0 mph (12.9 km/h). Casters float
during any movement above 8.0 mph (12.9 km/h).
a
(page 109).
Equipment Damage Risk:
All reverse planter movements require the tractor for which
the planter steering is calibrated. The casters match steering
only with that tractor, and only with steering engaged. See
“Emergency Moves Without Steering” on page 113.
Equipment Damage Risk:
If the Power LED is not on and steady, do not move the
planter or make only careful forward moves. If the LED is
blinking, there is a steering malfunction, and steering is NOT
engaged. See “Steering Troubleshooting” on page 99.
a. Electronic Control Unit - Steering match relies on sensors mounted on both planter and tractor, and calibration of the ECU (page 109).
The tractor sensor is normally dealer- installed, a topic covered in the planter Pre-Delivery Manual, publication 401-647Q.
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3PYPA Table of Contents Index Operating Instructions
12312345657
Steering Configuration Switch
This cab-mounted switch box controls both normal
operation and field calibration of the steering system. It
has 4 switches and 3 indicator lamps. See page 109 for
calibration details. In normal operations, only the
STEER switch and indicators and are
Steering Control Module Function Switch Positions and Indications
STEER Toggle Switch:
Steering System Power
LED:
Power / Fault
FLOAT LED:
Float / Caster
CALIBRATION Toggle Switch:
Calibration Modes
LEARN Button:
Calibration (Learn)
LED: Calibration
On (up): Steering enabled (casters match or float)
Off (down): Steering disabled (casters in Float)
On steady: Steering system active (casters match or float)
Blinking: Steering system fault (casters in Float)
Off: Normal operation - steering system active if STEER on
On: Casters in Float (if STEER LED is steady)
L: Caster aspect sensor (casters in Float)
C: Calibration mode off (normal transport/field mode)
R: Tractor aspect sensor (casters in Float)
First press: Learn tight Right turn
Next press: Learn Straight ahead
Next press: Learn tight Left turn
Off: Normal (non-Calibration) operation
Dim: Either Calibration mode selected
Bright Flash: Button press acknowledged
Rotary Switch Knob
(ONLY APPLIES TO s/n B1027J+)
employed.
Vertical position: Normal operation - steering system active while planting
as well as raised
Horizontal position: Used when tractor is utilizing auto-steer - steering
system floats while planting - active only when planter is raised
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3PYPA Table of Contents Index Operating Instructions
Machine Damage Risk:
Reverse only with properly functioning steering.
If the casters are in Float due to:
- a fault,
- because the steering system is shut off, or
- during operations with a non-steering-equipped tractor,
make only careful FORWARD moves. In any reverse moves in
Float, the casters quickly pivot in a random direction until
they hit their stops. The planter attempts to turn the tractor in
that direction. Planter damage is likely.
Figure 30
Normal Steering Control
29895
32
1
4
412
3
Steering Operation
Tire Shoving/Cart Shift Risk:
Keep everyone off and away from the seed cart when starting
up steering system. Casters move rapidly to match current
tractor steering once the steering system is engaged and
tractor hydraulics are active. This could be a large motion,
possibly a full left-to-right pivot operation, resulting in a shove
or fall, and minor to moderate injury.
Refer to Figure 30
1. Verify that steering circuit hydraulic hoses are
connected to a power-beyond port.
2. Set steering CALIBRATION switch to center-off.
3. Set STEER switch to on.
4. Check that main indicator LED is on steady.
The system operates automatically after this point. Keep
in mind:
• Casters transition from active steering to Float mode
above 8.0 mph (12.9 km/h). This state change is
indicated by Float LED illumination.
• The steering hydraulics can consume up to 4 gpm
during turns. If the tractor hydraulic flow is marginal,
commence turns after completing marker fold and
planter lift operations. Complete turns before
lowering planter and unfolding marker.
• When the steering system is off, or any fault occurs,
the casters are set to Float mode. Make only careful
forward moves in these cases.
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3PYPA Table of Contents Index Operating Instructions
25249
22
5
Transport
Loss of Control Hazard:
Ensure that the towing vehicle is adequate for the task. Using
an inadequate tow vehicle is extremely unsafe, and can result
in loss of control, serious injury and death.
The planter can weigh up to 28,000 pounds (12800 kg),
depending on configuration and seed load. The tractor MUST
be rated for the load. If the tractor is not rated for at least
28,000 pounds, calculate or obtain a scale weight of the
planter and cart. See chart below for typical configuration
weights. Do not tow if planter exceeds the load rating of the
vehicle.
Loss of Steering Control Hazard:
Never transport with top link of 3-point link connected. When
the top link is adjusted for field work, some planter mainframe
weight is carried by the top link, which can dangerously
reduce tractor front wheel traction and steering control.
Do not exceed 3 mph (5 km/h) in reverse. At 8.0 mph
(12.9 km/h) in reverse the planter steering disengages,
resulting in a sudden sharp turn. Major equipment damage is
certain.
Loss of Control Hazard / Major Damage Risks:
Do not exceed 20 mph (32 km/h) when driving straight and
forward.
The planter is extremely heavy, and can cause “over-steer”
with most tractors. Do not exceed 13 mph (22 km/h) in turns.
Reduction of Control Risk:
Seed may be loaded prior to travel, but increases stopping
distance, increases the need for caution in turns and braking,
and increases tire wear.
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3PYPA Table of Contents Index Operating Instructions
Approximate Weights of
Representative
3PYPA 3PYPA 3PYPA 3PYPA 3PYPA 3PYPA 3PYPA 3PYPA 3PYPA
Configurations
-1236 -1238 -1240 -1630 -24TR36 -24TR38 -24TR40 -3115 -32TR30
14500 lb 14500 lb 14500 lb 15300 lb 17000 lb 17000 lb 17000 lb 18400 lb 18700 lb
Typical² Empty
15300 lb 15300 lb 15300 lb 16200 lb 17800 lb 17800 lb 17800 lb 19300 lb 19500 lb
Typical² Full
20200 lb 20200 lb 20200 lb 21100 lb 22800 lb 22800 lb 22800 lb 24200 lb 24400 lb
17800 lb 17800 lb 17800 lb 18900 lb 21000 lb 21000 lb 21000 lb 22900 lb 23200 lb
22700 lb 22700 lb 22700 lb 23800 lb 25900 lb 25900 lb 25900 lb 27800 lb 28100 lb
Note:
Base¹ Planter
Maximum³ Empty
Maximum³ Full
¹ Base: No hopper/PROBOX, markers, coulters, or row cleaners
Weight of a specific planter can vary by a
thousand pounds or more, depending on
installed options and material loaded.
² Typical: with 82bu hopper. No markers, coulters, or row cleaners
³ Maximum: with 82bu hopper, markers, coulters, and row cleaners
Steering
Never exceed 13 mph (22 km/h) in turns. The planter is
extremely heavy, and can cause “over-steer” with most
tractors. Above 8 mph (12.9 km/h), the rear wheels
caster in forward motion, and provide only modest
resistance to side sway by the planter.
Steering must be engaged during all movements.
Never exceed 3 mph (5 km/h) in reverse.
Machine Damage Risk:
Never back up with the planter lowered. Row unit plugging is
certain. Damage to seed tube and seed firmers is likely.
Damage to row unit shanks is possible.
Figure 31
CFM for Transport
29869
Typical 3PYPA Planter Weights
Transport Steps
Transport only with wings folded (page 26) and markers
stowed (page 53).
1. Hitch, making electrical and hydraulic connections
(page 15).
2. Close slide gate on hopper or seed box (page 42).
3. If any seed is in delivery hoses, close seed inlet
shutters at meters (page 82).
MASTER
Left
Center
CLUTCH
Right
Wing Fold
Marker Tilt
Marker Fold
FRAME
Increased Hazards and Wear Risks:
Seed may be loaded prior to travel, but increases stopping
distance, increases the need for caution in turns and braking,
and increases tire wear.
4. Fold markers (page 53), if presently unfolded.
5. Raise planter (page 25).
6. Fold wings (page 26) if presently unfolded.
7. Install cylinder lock channels (page 28).
8. Disconnect 3-point top link.
9. Before departing, ensure that opener depth and
seed rate have been determined, or that the
necessary data is with you.
10. Plan the route.
Avoid steep hills.
Keep Clearances in mind. Folded, your planter may
be over 25 feet (7.6 m) wide and over
3
12
/8feet (3.8 m) high. Check bridge loads. The
tractor plus planter may exceed the load ratings of
bridges you must cross.
11. Always have lights on for highway operation.
12. Comply with all national, regional and local safety
laws when traveling on public roads.
13. Travel with caution.
Do not exceed 20 mph (32 km/h) when driving
straight. Do not exceed 13 mph (22 km/h) in turns.
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3PYPA Table of Contents Index Operating Instructions
Figure 32
Planter Unfolding
25245
25244
25243
Unfolding the Planter
Crushing, Pinch-Point and Overhead Hazards:
To prevent serious injury or death:
Do not allow anyone to be on or near the planter, or
beyond the ends of the planter during unfolding.
Numerous pinch and crush points exist in the mechanism.
The wings are massive. Coulters and row openers are
sharp.
Unfold only if hydraulics are bled free of air and fully
charged with hydraulic oil.
Unfold only with markers resting in transport cradles.
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3PYPA Table of Contents Index Operating Instructions
Figure 33
CFM Before Wing Unfold
29869
1
Figure 34
Flex Lock & Pin Storage
25247
2
3
231
2
Figure 35
CFM During Wing Unfold
Figure 36
CFM After Wing Unfold
29869
2
Figure 37
Wing Lock Pin Locations
25248
1
2
1
3
Wing Unfold Steps
1. Move planter to an area of level ground.
Put tractor in Park.
2. Unless rechecked recently, level the planter per
“Frame Height and Leveling” on page 22.
Refer to Figure 34
3. Make sure wing flex lock pins are in place.
4. Verify that the wing lock pins are available, and
are not in the wing lock-down holes. Normally, in
storage, transport and set-up, these pins are stored
in dedicated holes in the parking stand bracket.
Machine Damage Risk:
The INNER pins must be IN
and the
OUTER pins must be OUT
during folding and unfolding,
or machine damage will result.
MASTER
Left
Center
CLUTCH
Right
Wing Fold
Marker Tilt
Marker Fold
FRAME
Refer to Figure 33
5. Set all CFM FRAME switches off (down).
6. Raise planter.
Refer to Figure 35
7. Set CFM FRAME switch “Wing Fold” to on (up).
8. Activate (normally Extend) tractor hydraulic circuit to
unfold wings.
9. When fully unfolded, set hydraulic circuit to off.
Refer to Figure 36
10. Set “Wing Fold” switch to off (or marker operations
are disabled).
Refer to Figure 37
11. Insert wing lock pins .
Refer to Figure 34
If operation will be over uneven ground, remove wing flex
lock pins , and store in parking stand bracket holes .
MASTER
MASTER
Left
Center
Left
Center
CLUTCH
CLUTCH
Right
Right
Wing Fold
Wing Fold
Marker Tilt
Marker Tilt
Marker Fold
FRAME
Marker Fold
FRAME
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Figure 38
Walkboard Pin and Keeper
29874
1
2
3
4
4
5
1
4
Figure 39
Swing-Down Railing
29876
Figure 40
Walkboard Tool
29873
5
Walkboard and Ladder Operations
Refer to Figure 38, 39 and 40
The walkboard provides a convenient platform for
hopper inspection, and bag- or auger-loading of seed
into the hopper. The walkboard also swings open for
seed container exchanges, and stores a row-unit tool.
Falling Hazards:
Check that the walkboard pin is in place before climbing.
Check that both railing pins are fully seated before leaning
on rear center railing. There is no center railing on the seed
side of the walkboard. If latch pins are not seated in
swing-down railing segment, it could swing to the rear. If the
walkboard or railing swing open you could fall, resulting in
serious injury or death.
Always face ladder when climbing.
The walkboard has five key features:
1. Walkboard pin - keeps walkboard closed.
With left end of walkboard fully forward in channel at
ladder top, insert pin, and secure lowered end of pin
with wire bail.
2. Walkboard keeper - holds walkboard open when
hooked into...
3. Keeper keyhole.
Swing walkboard to near fully open. Engage wide
end of keeper in narrow slot of keyhole.
4. Swing-down railing - eases auger tube access.
Pull wire cross-pin towards implement center-line. If
not pulling both at once, rotate pin one quarter turn
and release into shallow detents. Swing railing
section down. When returning railing to normal
position, release both pins into deeper detents, and
check that both pins are fully seated.
5. Walkboard tool - adjusts opener down-force cam.
See page 72.
Only the 1
tool is used on Air-Pro implements.
1
/8inch open-end wrench feature of this
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3PYPA Table of Contents Index Operating Instructions
Figure 41
Air Box Inlet
27412
1
Irritation and Chronic Exposure Hazard:
DO NOT use hands or any part of your body to handle seed
lubricant. Wear gloves when working with seed lubricants.
Wear a respirator when transferring. Avoid breathing
lubricant dust. Not an acute hazard. May cause mechanical
eye or skin irritation in high concentrations. As with all
mineral spills, minimize dusting during clean-up. Prolonged
inhalation may cause lung injury. Product can become
slippery when wet.
Figure 42
Airbox Clean-Out Door
29877
2
2
3
3
1
Figure 43
CFM for “FILL METER”
29869
1
Loading Materials
The 3PYPA 3-Point 40 Foot Yield-Pro® Planter
®
with Air-Pro
Seed Meters accepts only the Great Plains
82 bu hopper or bulk seed boxes that meet the Pioneer
PROBOX® specification.
Prepare Air Box
These steps assume no seed container is mounted. If
leftover seed is present, perform a Material Clean-Out
(page 102). Dismount prior seed container as needed.
Refer to Figure 41
1. Position the planter on level ground with sufficient
rear clearance for maneuvering any tractor, forklift or
auger to be used for loading seed.
2. If leaving the tractor hitched, put it in Park, set the
parking brake, shut it off and remove the key.
Otherwise, prepare the planter as for Parking
(page 57).
3. If the air box is capped for shipping or storage,
remove the protective wrap or cover.
4. Inspect the elastomer seals for damage and excess
pre-compression. Check that corner pads are
1 inch (2.5 cm) higher than main pad.
5. Inspect the airbox for residual seed or foreign matter.
Perform any clean-out necessary.
Refer to Figure 42 (showing door slightly ajar)
6. Close clean-out door.
If the clean-out door is partly or completely open,
wipe the seal clean, inspect for damage/wear, and
close the door. Push levers fully forward into detent.
7. At the start of planting season:
a. Pour 2 cups (0.6 liter) Ezee Glide Plus seed
lubricant into the air box (this is before mounting the
seed container).
b. Open all Y-tubes (page 83).
c. Close all seed inlet shutters (page 79).
Seed disks may be installed or not.
d. Start tractor and seed monitor.
Refer to Figure 43
Set MASTER and FRAME CFM switches to Off.
e. Start fan, and set to 2000 rpm.
f. Command monitor to perform a “FILL METER”
operation (see DICKEY-john
Level 1 manual).
8. Shut off fan, monitor, and tractor.
9. Remove pins at corners of seed structure.
10. Swing the walkboard ladder open and secure it with
the keeper (page 38).
®
Planter/Drill Control
a
MASTER
Left
Center
CLUTCH
Right
Wing Fold
Marker Tilt
Marker Fold
FRAME
a. PROBOX® is a registered trademark of Pioneer Hi-Bred International, Inc.
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3PYPA Table of Contents Index Operating Instructions
Figure 44
Hopper Lid Open
29879
5
6
7
567
Figure 45
Hopper Slide Gate Open
29881
Prepare Hopper (if used)
The hopper includes a level sensor which is not
factory-installed. If you desire to use the sensor,
install it prior to first use of the hopper. See page 167.
Refer to Figure 44
1. Open hopper lid and inspect hopper:
• Rubber latch must be intact.
If hopper is not closed securely during operations, air
leaks cause irregular seed delivery.
• Make sure seed strainer basket is present and
clean.
• Check that hopper is clear of residual seed and
foreign matter. See page 102 if any clean-out is
required.
• Check lid for holes, cracks and excessive warping.
Close lid. It must seat flat when latched.
Refer to Figure 45
2. Briefly open slide gate to drain off any condensed
moisture.
Prepare Bulk Seed Box
Due to the difficulty of mixing seed lubricant down to the
base of the bulk box, Great Plains suggests:
• Mix lubricant into the seed prior to transport of the
bulk box to the field.
• Pour 2 cups (0.6 liter) of lubricant into the air box
before mounting the bulk box.
1. Determine the amount of seed lubricant required.
See page 133 for recommendations.
2. Open the lid of the bulk box.
3. Mix in all but 2 cups of the lubricant, stirring as
deeply as possible without damaging seed.
4. Close the lid.
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3PYPA Table of Contents Index Operating Instructions
Figure 46
Approaching Hopper
25255
8
9
Figure 47
Mounting Hopper
25254
8
9
Mount Hopper or Bulk Seed Box
1. Prepare the air box, walkboard, and seed structure
per the steps at “Prepare Air Box” on page 39.
Tip-Over Hazard:
Place or remove an 82 bushel hopper only when empty. A full
hopper can weigh over 5000 pounds (2270 kg), which is above
the lifting and balance capability of most tractors and farm
forklifts.
2. If mounting a bulk seed box, it may be easier to add
seed lubricant while the box is still at ground level.
See page 133 for amount to add.
3. If mounting a hopper, make sure slide gate is closed.
Fork lift height capability required is:
5 feet (1.5 m)
4. Determine the container and lifter orientation.
Although containers fit the seed structure at any
orientation, they can deliver seed only if the slide
gate is to planter-rear.
Although side placement is possible, Great Plains
recommends lifting from the rear of the seed container,
using the lower side tubes . For side lifting (typically for
hopper storage), use the side fork holes . Do not lift
from below the side tubes.
Tip-Over Hazard:
A full bulk seed box can weigh over 2500 pounds (1130 kg).
Make sure your tractor or fork lift is rated for and configured
to lift this weight. Do not let anyone stand under or in front of
the elevated seed hopper or bulk seed box.
5. Place the hopper or bulk seed box in the seed
structure.
6. Check the seal between the container and the air
box. The elastomer seal should be compressed by
approximately
3
/8inch (13 mm). It may be necessary
to make a one-time adjustment to eliminate any air
gaps and achieve the recommended compression.
7. Secure the seed container to the frame using the
pins removed at step 9 on page 39. Placing these
pins at opposing corners provides the most stability.
8. Close the walkboard and secure with pin (page 38).
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3PYPA Table of Contents Index Operating Instructions
Figure 48
Slide Gate Closed for Loading
29495
Figure 49
Hopper Capacities (bushels)
29869
Approximate capacity of bulk seed hopper,
in bushels, at 10 inch increments
Load Seed in Hopper (if used)
System Plugging Risk:
Do not use liquid seed treatments.
Refer to Figure 48
1. Check that slide gate is closed.
2. Determine the amount of seed lubricant required.
See page 133 for recommendations.
Inconsistent Population/Blockage Risks:
Ezee Glide Plus seed lubricant is required for all seeds.
Thorough mixing of seed and lubricant is required for
lubricant to be effective.
3. Check that walkboard is pinned closed (page 38).
Fold down railing if needed for auger.
Falling, Chemical and Auger Hazards:
Face ladder when climbing walkboard. Make sure walkboard
is securely latched. Make sure swing-down railing is securely
latched for hand-loading. Observe seed supplier precautions
for handling treated seed. Follow all safety procedures for
auger operations.
Auger lift height capability required is:
12 feet (3.7 m)
4. Open hopper lid (page 40).
Load seed while mixing in seed lubricant.
Irritation and Chronic Exposure Hazard:
DO NOT use hands or any part of your body to mix seed
lubricant. Wear gloves. Wear a respirator when transferring
and mixing. Avoid breathing lubricant dust. Not an acute
hazard. May cause mechanical eye or skin irritation in high
concentrations. As with all mineral spills, minimize dusting
during cleanup. Prolonged inhalation may cause lung injury.
Product can become slippery when wet.
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3PYPA Table of Contents Index Operating Instructions
Figure 50
Slide Gate Closed for Dismount
29495
Figure 51
Dismounting Hopper
25254
Dismounting a Seed Container
Tip-Over Hazard:
Place or remove an 82 bushel hopper only when empty. A full
hopper can weigh over 5000 pounds (2270 kg), which is above
the lifting and balance capability of most tractors and farm
forklifts.
Tip-Over Hazard:
A full bulk seed box can weigh over 2500 pounds (1130 kg).
Make sure your tractor or fork lift is rated for and configured
to lift this weight. Do not let anyone stand under or in front of
the elevated seed hopper or bulk seed box.
1. Park the planter in an area with level ground and
sufficient room to maneuver a tractor or fork-loader.
2. Turn off the seed box fan.
3. Put the towing tractor in Park. Shut off engine.
Remove key.
Refer to Figure 50
4. Close the slide gate at the base of the hopper or
seed box.
5. Open the walkboard and secure with keeper
(page 38).
6. Remove two pins securing seed container to seed
structure (page 39).
7. Align the lifting forks with the lower tubes of the
hopper, or slots at base of bulk seed box.
8. Slowly move forks forward until completely under the
container.
9. Slowly lift the seed container above the bracket.
Back away from the planter.
10. Lower the container to the ground.
11. If not mounting another seed container, close and
pin the walkboard. Return the corner pins to the seed
structure. Cap the air box inlet if a cover is available.
Fertilizer Operation (Option)
Agricultural Chemical Hazard:
Avoid contact with skin or eyes. Wear proper protective
equipment as required by chemical manufacturer. Avoid
prolonged breathing of chemical fumes. Wear respirator as
required by chemical manufacturer. Some chemicals will cause
serious burns, lung damage, and death. Seek medical
assistance immediately if accident occurs. Know what to do in
case of accident.
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3PYPA Table of Contents Index Operating Instructions
A fertilizer distribution system is optional on the planter.
The Great Plains provisioned components include:
• the lines to the row units (connected to Keeton
seed firmers if present),
• orifice fittings for each row
• distribution lines
• manifold
• pressure gauge
• relief valve
• inlet (1 inch female NPT) from pump system on
tractor
If installed, there are five points of fertilizer setup and/or
adjustment:
1. Pump drive connection and valves
These are separately provisioned tractor-mounted
components, and are not described in this manual.
2. Strainer setup
This is a separately provisioned tractor-mounted
component, but the mesh screen size must be
compatible with the orifice plates in the distribution
system. See this page and “Fertilizer Orifice
Plates” on page 68.
3. Relief valve setting
See “Fertilizer Row Shut-Off” on page 69.
4. Pump drive rate
This is a separately provisioned tractor-mounted
capability. Rate setting is described in the 401-647B
Rate Manual, but system operation is not.
5. Row orifice setup
See “Fertilizer Rate” in the 401-647B Rate Manual.
Great Plains recommends checking with your local
agronomist, as soil conditions vary. Soil conditions in
your area may need less or more fertilizer than
represented in the charts. Do not exceed 12 gallons per
acre in any case.
The liquid fertilizer system is designed to operate
(ideally) between 15 and 40 psi, but in no case more
than 85 psi. Several system elements affect system
pressure, and need initial setup, periodic maintenance,
and adjustment when changing seed rates.
• Generally, select a mesh screen the same or slightly
®
smaller than the orifice size.
• A substantially smaller mesh (e.g. 100) will reduce
manifold orifice plates plugging, but the strainer
screen will have to be cleaned more often.
• A much larger mesh (e.g. 50 or 30) will pass more
material but should only be considered when using
large manifold orifice plates.
• A plugged or partially plugged screen will starve the
pump and will result in a reduced application rate.
Liquid Fertilizer Strainer
A strainer is commonly supplied with a fertilizer pump
option and is plumbed between the tank(s) and the
pump.
The strainer may have been delivered with a mesh
screen. You need to check that it is an appropriate size
for the orifice plates you plan to use.
The standard orifice plates for the planter are size 48.
Sizes 34 and 28 are also provided.
If changing screen sizes, keep in mind the following:
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3PYPA Table of Contents Index Operating Instructions
Figure 52
Yield-Pro Air System for Air-Pro Seed Metering
29595
11
12
13
15
16
15
14
17
18
19
26
23
22
20
21
24
25
1117231218241319251420261521261622
Air System Operation
Hydraulic Fan Pressure Sensor Lines Air-Pro Seed Meter
Split-Air Manifold Pressure Sensor Chamber Row Pressurizing Tubes
Servo-Controlled Vane Feedback Signal Line Row Unit Seed Tube
WSMT Servo Programming Air Box & Seed Manifold
Priority Meter Pressurization Air Seed Delivery Hose Balancing Valve (Figure 54)
Excess Air to Air Box Air Release Screen
Meter Pressurization System Elements ( shows air direction)
IntelliAg® Console
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3PYPA Table of Contents Index Operating Instructions
Figure 53
Fan and Manifold
29882
There are console menus for adjustment of metering air, and
manual fall-back modes.
In the case of insufficient fan air, or significant seed delivery air
leaks, seed flow may be irregular or stop.
Meter Pressurization is displayed by a mechanical gauge, and
by sensors connected to the seed monitor system. As these
sensors measure pressure at similar locations, they generally
agree.
If seed delivery air flow is insufficient, the indication will be low
seed rate alarms. If fan speed and direction are as
recommended, check for air leaks in the seed delivery system.
When the meter inlet is filled, and seed fills the tube above the
inlet, the screen becomes blocked by seed, shutting off air
flow to that meter. As the meter consumes seed, the screen
becomes exposed, air resumes flowing, carrying more seed
from the air box manifold to the meter.
Several rows have pressure sensor ports for the meter
pressurization system. Use of the special blank disk is
particularly important when one of these rows is shut off.
Running a normal disk with no seed causes the air system to
over-compensate.
11
12
27
1112131415161718191420212223242526
27
Air System Overview
The hydraulic fan supplies air for both seed delivery
and meter operation. Fan rpm is operator-adjusted
(page 48) via the tractor’s hydraulic flow control, and
reported by the seed monitor system. The rest of the
system is fully automatic.
At the split air manifold , a rotary actuator operates
a vane, under the control of software in the WSMT ,
which regulates the air diverted to the meter
pressurization system .
Air not used for metering (typically just under half of it)
flows to the air box for bulk seed delivery. The meter
pressurization air has priority, and can take all the air.
Several rows have lines to sample metering air
pressure, which is measured in a sensor chamber .
The sensor reading is fed back to the WSMT for
closed-loop pressure control. No operator adjustment is
required for the metering air system.
At the air box , air is mixed with seed from the bulk
hopper or ProBox, and flows out of the air box manifold
ports into primary seed hoses to the rows. Y-tubes
(not shown) may split primary hoses into secondary
hoses to rows.
An air release screen above each Air-Pro meter
vents the delivery air. The vent has two functions:
1. It releases delivery air while retaining the delivered
seeds.
2. It is a passive control gate for bulk seed delivery.
It takes about a minute to initially fill the meters.
Separate pressurization tubes provide the air to the
meters that holds the seed in disk cells until released to
the seed tubes .
A detector in each seed tube reports seed passage to
the seed monitor system, which reports counts and rates
on the console .
There is a butterfly valve for the center section meter
pressurization air. This valve is calibrated at the factory
for your planter, and locked. Do not adjust it.
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3PYPA Table of Contents Index Operating Instructions
Figure 54
Fan Hydraulic Connections
29882
1
2
3
4
5
123
If the fan is connected in reverse, it may not run at all (due to
no oil source at the return connection). If oil is present, oil
bypass at the check valve prevents the fan from reaching
operating rpms. A reversed fan is incapable of providing
sufficient air flow for planting.
545
1
Fan Circuit Operation
See also “Fan and Adjustment” on page 65.
Refer to Figure 54
Three hydraulic hoses serve the fan, and must be
properly connected for the fan to operate in the correct
direction , at recommended speeds, and without
damage. See “Hydraulic Hose Hookup” on page 18.
1. Always connect the case drain line first.
This line protects the outer shaft seal of the hydraulic
motor. The case drain is a small line to the hitch,
provisioned with a specialized low-seep flat-face
case drain Quick Disconnect. Pressure spikes during
motor operation, and pressure cycles due to
temperature change are bled off by the case drain.
Motor Seal Damage Hazard
Do not apply pressure to the case drain line. Do not change
the special QD connector. A restricted or sealed case drain
line will promptly result in motor seal damage.
2. Connect the motor return line second, to sump.
The planter includes an 1
QD coupler set. Install the receptacle on a tractor
sump port, and not at a normal remote return port.
The unusual size aids in ensuring correct
connection, so that the motor return line handles
high volume at low back-pressure, ensuring full
motor performance.
3. Connect the motor inlet line to a tractor remote
capable of the flow rates shown at “Recommended
Initial Fan Speeds” on page 48.
4. The fan hydraulic circuit includes a check valve ,
Fan speed is controlled by the tractor circuit (and not the
seed monitor). Fan rpm is reported by the seed monitor
console.
You may stop the fan by setting the circuit to neutral or
float. The check valve slows the blades to a stop by
locally recirculating the oil.
which provides a relief path for oil at motor shutoff.
The resulting low fan rpm provides strong indication
reversed connection.
Correct fan direction is shown at .If reversed fan is
suspected, observe it during shutoff, as the direction
of motion is easier to see at lower rpms as it slows to
a stop (initial startup is virtually instantaneous,
making observation at start difficult).
1
/16inch low back-pressure
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 47
Page 52
3PYPA Table of Contents Index Operating Instructions
Recommended Fan Speeds
3PYPA Seed Hopper* Bulk Box
Initial Fan Speed 2900 rpm 2500 rpm
Fan Speed Range 2000 - 3900 rpm 2000 - 3300 rpm
Oil Consumption
Ground Drive
16 - 24 gpm 16 - 22 gpm
No Markers
61 - 92 lpm 61 - 82 lpm
Ground Drive
23 - 31 gpm 23 - 28 gpm
With Markers
85 - 116 lpm 85 - 106 lpm
Hydraulic Drive
21 - 29 gpm 21 - 26 gpm
No Markers
78 - 109 lpm 78 - 99 lpm
Hydraulic Drive
28 - 36 gpm 28 - 34 gpm
With Markers
106 - 137 lpm 106 - 127 lpm
34 - 42 gpm 34 - 40 gpm
Maximum Turns
129 - 160 lpm 129 - 150 lpm
Maximum Config.
* This assumes a 2007+ Great Plains hopper, or older hopper
with the vent line update. For an older unvented hopper, use
the rpms recommended for Bulk Box.
Low Population Risk at Turns:
The figures assume a 6 second lift and 15 second marker fold,
and do not include oil consumed by the tractor itself.
Aggressive lift/lower operations, and simultaneous lift/marker
operations, can reduce fan rpm below that needed to
pressurize meter disks. If seeds fall out of pockets, low
population bands will occur after turns.
Unless the tractor has generous oil flow capacity, raise/fold
markers before lift, and lift slowly. Watch manifold pressure
and tune operations to keep it at planting levels in turns.
The Seed Rate manual provides initial values for meter
pressurization. Normal readings are in the 0.8 inch to 4.0 inch
water range, and vary considerably with crop.
During “FILL METER”, all air is routed to the air box, and none
to the meter pressurization system.
Fan General Operating Information
Use tractor remote hydraulic valve flow control to set fan
speed. Always start the fan with a low flow setting.
Monitor fan rpm with the seed monitor.
Gradually bring fan up to the recommended initial rpm.
The split-air servo vane engages only above 50 rpm.
Do not run the fan over 3900 rpm or at speeds under
2000 rpm.
At excessive rpm, too much air flow can cause:
• seed to plug the air box
• seed suspension in a bulk seed box
• oil heating
• slow lift times
If the rpm is too low, the split-air system may divert
nearly all the air to meter pressurization, leaving none for
seed transport (or just enough to plug low spots in seed
hoses).
The monitor console can report meter pressurization.
There is also a Magnehelic
two readings should not disagree by more than a few
tenths of an inch.
If at suggested fan rpm, desired pressure cannot be
reached, chances are the fan is running backwards. If
the rpm and meter pressurization readings are correct,
but the meters are starved of seed, the fan may be
running backwards and the meter pressurization system
is taking all the air, leaving little or none for seed delivery.
Reverse the inlet/return lines at the hitch.
If air system does not operate suitably with fan speeds
between 2000 and 3900 rpm, see “Population
Troubleshooting Charts” on page 92.
When starting empty you must blow seed out to the
meters for two to four minutes to fill meters.
The monitor has a level sensor below the hopper or seed
box to warn when seed box is empty. There are three to
four acres of seed in the system when the sensor first
indicates box empty, depending on seeding rate.
Steps for setting and adjusting the air system are found
at “Fan and Adjustment” on page 65.
®
air pressure gauge. These
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Page 53
3PYPA Table of Contents Index Operating Instructions
Marker Fold
Marker Tilt
FRAME
Wing Fold
Right
CLUTCH
Center
Left
MASTER
Figure 55
CFM: Clutch Switches
29887
M
L
C
R
Figure 56
Electric Clutch Lockup
29329
5
1
2
LCRM12345
6
Figure 57
Clutch Plate Nearly at Cutout
26168
6
4
3
6
Electric Clutch Operation
The 3PYPA Planter has two or three clutches in the seed
meter drive system:
• Hydraulic drive planters have 2 clutches.
• Ground drive planters have 3 clutches.
A clutch enables or disables groups of row units. The
information in the table on the next page is normally
preset at the factory for your planter configuration.
Refer to Figure 55 (depicting the left group shut off)
The switches Left / Center / Right correspond to
the left wing row units, center section row units and right
wing row units respectively. The Center switch has no
function on hydraulic drive planters.
The Master switch controls all row units, regardless of
drive type. For all switches, “OFF” (down) removes
power from the clutch, disengaging that set of row units.
When any switch (plus Master) is ON, the LED for that
switch illuminates steadily.
Electric Clutch Lock-Up
In case of electric clutch failure, an electric clutch can be
mechanically engaged.
Refer to Figure 56 and Figure 57
1. Remove the rubber plugs from the oil shield
disc to allow access to the lock-up holes. Plugs
simply push out away from the clutch side.
2. Align the cutouts with the holes .
3. Insert the M8-1.25 x 14mm long metric bolts .
If you observe half the hole obstructed by a metal
disc , you are not at a cutout.
If the entire hole is obstructed by a metal disc , you are
not at a cutout.
When at a cutout, the bolt will screw in with minimal
resistance until the bolt head reaches the clutch face.
4. Reinstall the plugs so they are not lost.
Use only the provided 14 mm length bolts. Longer
bolts will damage the clutch. Shorter bolts may not
effect a lock-up.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 49
Page 54
3PYPA Table of Contents Index Operating Instructions
Marker Fold
Marker Tilt
FRAME
Wing Fold
Right
CLUTCH
Center
Left
MASTER
29871
Clutch Switch Coverage
Clutch Switch Coverage
12-row Ground Drive (36 inch Single, 38 inch Single, 40-in Single)
Left Center Right
123456789101112
12-Row Hydraulic Drive (36 inch Single, 38 inch Single, 40-in Single)
Left Right
123456789101112
16-row Ground Drive (30 inch Single)
Left Center Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
16-Row Hydraulic Drive (30 inch Single)
Left Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
23-Row Ground Drive (20 inch Single)
Left Center Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
23-Row Hydraulic Drive (20 inch Single)
Left Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24-Row (12 Twin) Ground Drive (36 inch Twin, 38 inch Twin, 40 inch Twin)
Left Center Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
24-Row (12 Twin) Hydraulic Drive (36 inch Twin, 38 inch Twin, 40 inch Twin)
Left Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
31-Row Ground Drive (15 inch Single)
Left Center Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
31-Row Hydraulic Drive (15 inch Single)
Left Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
32-Row (16-Twin) Ground Drive (30 inch Twin)
Left Center Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
32-Row (16-Twin) Hydraulic Drive (30 inch Twin)
Left Right
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
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3PYPA Table of Contents Index Operating Instructions
Figure 58
Air-Pro Seed Meter at Row
29825
3
2
1
5
6
4
7
8
9
123456789
Air-Pro Meter Operation
Refer to Figure 58
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 139).
Seed is air-delivered to the inlet above the air release
screen . Seed customarily fills to the top of the screen,
blocking further air flow from the seed delivery system,
until the seed level falls below the screen.
Seed enters the meter at the seed inlet shutter (if
open), and forms a seed pool at the base of the meter.
Seed pool size is controlled by the shutter handle
setting (which is the only user adjustment at the meter).
Initial shutter settings are given in the seed rate charts.
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 shutters at planting rows to the recommended
initial setting (from the Seed Rate charts). At unused
rows, close Y-tube leg (page 103), install a blank
disk (page 139) and close shutter.
3. Set sprocket indexing if staggering a twin-row crop
(see Seed Rate manual for details).
4. Operate the fan at normal field rpm.
5. On the seed monitor, perform a “FILL METER”
operation.
6. With all rows primed, rotate meters one turn to fill
pockets to edge of drop brush.
For hydraulic drive, engage all clutches, and use a
“FILL DISK” seed monitor operation.
For ground drive, either disengage all clutches and
rotate the section drive shafts (top forward) with a
7
/8inch (23 mm) wrench, or raise planter, engage
clutches and rotate ground drive tires (top forward).
7. Leave fan running (to keep seed in top pockets).
Reinstall rain covers. Commence planting.
Meter operation is automatic from this point on.
For hydraulic drive planters, an optional Remote Test
Switch is available from DICKEY-john
at-row control of meter rotation for meter fill and seed
pool recovery operations.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 51
®
which allows
See also:
“Seed Pool Troubleshooting” on page 90,
“Seed Pool Recovery” on page 91,
“Meter Clean-Out” on page 103, and
“Meter Brush Maintenance” on page 105.
Page 56
3PYPA Table of Contents Index Operating Instructions
Figure 59
Marker Tilted Down
29890
Figure 60
CFM: Switches for Markers
29891
1
2
3
31211
2
Marker Operation (Option)
Overhead, Crushing and Shearing Hazards:
Do not allow anyone to stand near or beyond the end of the
wings during marker operations. There is risk of serious injury
or death for anyone in the path of a marker. Marker arms are
heavy, are under tremendous hydraulic power, and may move
suddenly if the hydraulic system is damaged or needs bleeding.
Marker discs may be sharp.
The planter markers have two operations, which are only
performed when the wings are unfolded (page 36):
1. Tilt (forward/up and backward/down)
Markers are tilted up prior to marker unfold/fold.
Markers are left tilted up for field operations.
Markers are tilted down prior, to wing fold, for
transport and storage.
2. Fold (down/out and up/in)
Markers are unfolded for marking.
Markers are folded for turns and prior to alternate
side unfolding.
If markers are installed, but not required for the next field
operations, they may be left folded and tilted up or down.
CFM and Marker Switch Priority
Refer to Figure 60
The Wing Fold switch must be OFF during all marker
operations. When the Wing Fold switch is ON, marker
switches ( / ) are disabled.
The Tilt operation is performed before the unfold
operation. The Tilt switch must be OFF during marker
fold operations.
When the Marker Tilt switch is ON, the Marker Fold
switch is disabled.
Before Operating Markers
• Make sure cylinders are properly bled. See “Marker
Maintenance (Option)” on page 119.
• This section presumes correct marker extension for
your pass spacing. If this has not been set, or needs
to be changed, see “Marker Extension” on
page 170.
• This section presumes a factory marker chain
configuration.
• If your chain has been replaced, or stretched, adjust
the links to the correct slack length. See “Marker
Chain Length Adjustment” on page 119.
• Markers are equipped with an automatic sequence
valve that controls which side activates, as well as
marker deployment speed. Marker folding speed is
adjusted via set screws on the sequence valve body.
Excessive folding speed may damage markers. Set
MASTER
Left
Center
CLUTCH
Right
Wing Fold
Marker Tilt
Marker Fold
FRAME
speed prior to first field operations. See “Marker
Speed Adjustment” on page 169.
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3PYPA Table of Contents Index Operating Instructions
Figure 61
CFM: Switches for Marker Tilt
29889
1
1
Figure 62
Marker Tilted Down
25250
2
Figure 63
CFM: Switches for Marker Fold
29892
2
Marker Tilt-Up
Refer to Figure 61
1. On the CFM, set all FRAME switches off (down).
MASTER
Left
Center
Right
Wing Fold
Marker Tilt
Marker Fold
2. Set Marker Tilt switch to on (up).
3. Move tractor hydraulic control (lever or switch) for
CLUTCH
FRAME
the marker circuit (typically to Retract). Hold until
marker is raised. Do not leave control in detent.
4. Set Marker Tilt switch to off (down), and leave it in
off position during normal field operations.
Marker Tilt-Down
With both markers in the upright and folded
configuration, and the tractor circuit control off/neutral:
1. Set CFM switch Marker Fold to off (down).
2. Set CFM switch Marker Tilt to on (up).
3. Move tractor circuit control to Extend. Hold until
markers are resting in transport cradles.
Marker Unfold (one side)
Refer to Figure 63
1. Tilt markers up.
2. Set CFM switch Marker Fold to on (up).
3. Move tractor hydraulic control (lever or switch) for
the marker circuit (typically to Extend). Hold until
marker is completely unfolded. Do not leave tractor
control in detent.
4. If the marker side operating is not the desired side,
let it unfold part way, and move the tractor’s circuit
control to Retract. When the marker is folded, move
the circuit control to Extend to activate the other side.
During normal field operations, leave CFM switch
Marker Fold on. Other FRAME switches must be OFF.
Both Sides Unfolded
With both markers in the upright/tilted positions:
1. Unfold either side, and when completely deployed:
2. Move lever/switch to Retract momentarily, and return
to Extend to deploy other side.
MASTER
Left
Center
CLUTCH
Right
Wing Fold
Marker Tilt
Marker Fold
FRAME
Row Marker Operation
To alternate which side is marked:
1. CFM switch Marker Fold must be on, and all other
FRAME switches must be off.
2. Move the tractor’s circuit control to Retract. Hold until
1. CFM switch Marker Fold must be on, and all other
FRAME switches must be off.
2. Move the tractor’s circuit control to Retract. Hold until
marker is folded.
3. Tilt markers down for transport or storage.
marker is folded.
3. Move the tractor’s circuit control to Extend. Hold until
the new side’s marker is fully unfolded.
4. Return tractor control to neutral/off.
Folding The Markers
If your planter has markers, they must be folded and
secured before folding the wings.
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3PYPA Table of Contents Index Operating Instructions
Field Set-Up Checklists
Use the following tables to develop a final checklist for
your tractor/planter configuration. Additional or fewer
steps may be necessary depending on tractor features,
planter options and planting accessories.
Mechanical Checklist (Hitching) Page
Planter centered at hitch 15
Left hitch spacers installed 15
Tongue height preset on 3-point 22
Electrical Checklist Page
Verify electrical hookups solid 17
Check seed monitor terminal and observe any
diagnostic messages
With hydraulic circuits in Neutral, check switches
and indicator lights on Clutch Folding Module
switch panel. Confirm Master OFF.
Verify that, when planter is lowered, radar speed
sensor is pointed at ground, at an angle
approximately 35 below horizontal.
a. Refer to monitor manual.
b. Refer to sensor documentation.
Mechanical Checklist (post-Hitching) Page
Transport locks moved to storage 28
Front-to-rear level 22
Planter unfolded 36
Wings level 168
3-point top link adjusted (if used) -
Marker tilt complete 53
Marker extension set 170
Marker disc angle set 64
Markers folded (unless already at start of first
planting row)
Walkboard closed and pinned. 38
53
Hydraulic System Checklist Page
Check tractor hydraulic reservoir full Steering: case drain (shared with fan)
Steering: sensor line
Steering: pressure return (shared w/fan)
20
Steering: pressure side to power-beyond
Fan case drain (shared with steering)
Fan return (shared with steering)
20
Fan motor pressure side (retract)
a
Lift (Standard) / Down Pressure (Option) 20
Wing (Standard) / Marker (Option) 20
-
Hydraulic Drive (Option) 20
Inspect connections for leaks -
b
Turn tractor steering slightly and confirm caster
response.
33
Perform a raise and lower operation 25
Check fan speed and airflow direction
a
If equipped with hydraulic drive:
confirm CFM Master switch off,
select “5 REV TEST” on monitor, and
49
check planter drive rotation direction.
a. Operate fan briefly. Check that rpm can reach operating
speed on seed monitor. Observe rotor blades spinning
toward exit port as fan slows to a stop.
Air System Checklist Page
Manifold to seed box or hopper seal Add 2 cups of seed lubricant to air box, prior to
first use, and prior to loading seed
133
Seed loaded. Lids closed and latched. 40
Y-tubes turned on for active rows 83
No air leaks (except from seed box) Hose routings - no sags, no pinches (check
wing-folded & field positions)
-
Hoses fully connected to meters and locked -
Planter Hydraulic Drive Checklist Page
Check chain lubrication and slack 121
Input initial values for desired population
Calibrate radar speed sensor pulses with planter
a
b
lowered.
Lubricate slider joints on drive shafts 128
Check clutch operation 49
a. Refer to monitor manual and Seed Rate manual.
b. Refer to seed monitor manual.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 54
Page 59
3PYPA Table of Contents Index Operating Instructions
Planter Ground Drive Checklist Page
Check chain lubrication and slack 121
Set/check Range, Transmission and Upper Drive
a
sprockets against rate chart
Calibrate radar speed sensor pulses with planter
b
lowered.
Lubricate slider joints on drive shafts 128
Check clutch operation 49
a. Refer to Seed Rate manual.
b. Refer to seed monitor manual.
Row Units Checklist Page
Preset depth handles alike. 76
Preset down force springs alike, except in tracks. 71
Set all unit-mounted coulters to
shallower than opener blades.
1
/4inch
74
Check coulter alignment to row 75
Check closing wheel alignment 86
Set press wheels alike, except in tracks. 86
Check action and contact of side depth wheels 77
Check wheel scraper gaps (if installed) 78
Treatments (Options) Checklist Page
Check tractor-mounted components
Check for correct orifice plates
Check relief valve setting 69
Fill system with 100 gallons of water, and check
for leaks
Check all row unit lines connected, free of kinks,
and discharge tube/nozzles clear
Inlet and hose valves open -
a. Check supplier manual for tanks and pump. Check fertilizer
section of monitor manual.
b. Check Seed Rate manual, and manual for fertilizer pump
system.
Meters Checklist Page
Corn? Check timing of meters for twin-row
Check chain tension. Reconnect any loose idler
tensioning springs.
Correct disks for seed
Start fan. Operate at field rpms. 47
Rotate meter drive shafts one turn disks with
seed.
a. Refer to Seed Rate manual.
b. With optional hydraulic drive, speed this process by
performing a “FILL METER” operation.
51
a
b
-
-
a
-
a
b
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Page 60
3PYPA Table of Contents Index Operating Instructions
Figure 64
Planting
29900
Field Operation
Perform all steps in “Pre-Start Checklist” on page 24
and “Field Set-Up Checklists” on page 54.
First Pass Operation Checklist Page
Check that steering is engaged 31
1.
Raise planter and line up at start of first planting
2.
row.
Set tractor 3-point hitch to “depth control”
3.
operation (and not load control).
If tractor hitch is set for “load control”,
planting depth will be uneven.
Prime meters with seed.
4.
Leave fan running.
Unfold marker on next-row side. 52
5.
Engage hydraulic seed drive via seed monitor.
6.
Refer to seed monitor manual.
If planter has a fertilizer system integrated with
7.
the DICKEY-john
“Fert.Pump” switch on the Clutch Folding
Module to ON.
In the CLUTCH cluster of the CFM, set Master
8.
and section switches ON.
Pull forward, lower planter, and begin planting
9.
for a short distance.
Stop. Assess:
10.
®
seed monitor, set the
• planting depth
• seed spacing
• press wheel operation
• fertilizer application (if in use)
Make necessary adjustments 59
11.
Resume planting. -
12.
25
51
45
49
25
Sharp Field Turnsa Checklist
Fold marker 52
1.
Raise planter when fold is complete 25
2.
Make turn
3.
Lower planter 25
-
-
-
4.
Unfold marker on next-row side. 52
5.
Resume planting.
6.
a. Monitor manifold pressure during end-of-pass operations
and turns. Adjust operations as needed to maintain meter
pressurization.
Suspending Planting Checklist Page
Stop tractor -
1.
Fertilizer pump OFF -
2.
Fan hydraulic circuit to Float or Neutral 47
3.
Hydraulic drive circuit to Float or Neutral -
4.
Fold Marker 52
5.
Raise planter 25
6.
Ending Planting Checklist Page
Suspend operations as above, then
1.
Install lift assist locks 28
2.
Fold planter 26
3.
Lights ON -
4.
Transport 34
5.
Page
Consult seed monitor for alarms during planting. Check
that reported rates are consistent with your plan.
When reloading seed and fertilizer, check consumption
against anticipated use to that point.
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Page 61
3PYPA Table of Contents Index Operating Instructions
Falling Weight Hazard:
Do not stand in front of stand while swinging it down. If you
lose control of the motion, the stand can seriously injure you.
Figure 65
Parking Stand Raised
25241
1
2
3
1
2
13454
Figure 66
Parking Stand Lowered
25240
3
4
5
Short-Term Parking
1. Fold markers (page 53). Tilt them down (page 53).
2. Choose a location with level firm ground. Do not
unhitch on a steep slope.
3. Unfold the planter. With ample space, Great Plains
recommends parking the planter unfolded. This
allows easiest access for routine maintenance,
particularly on the folding mechanism. Do not insert
wing lock pins.
Refer to Figure 65 and Figure 66
4. Remove pin holding each parking stand up.
Swing stands down. They may not be fully vertical at
this point.
5. Fully raise planter.
The load on the parking stands is as much as
5700 pounds each (or 116 psi). If the ground is soft or
uncertain, place boards or concrete pads under the
parking stand locations.
6. Insert pin in the lower hole pin , locking the
stand in the parking position.
7. Remove pin and extend inner parking leg to the
ground.
8. Slowly raise the leg until the hole in the outer leg
aligns with a hole in the inner leg. Reinsert pin .
9. Install lift assist locks (page 28) if not already
present.
10. Lower planter until hitch is not resting on tractor
3-point.
11. Shut down tractor. This step is essential to permit
disconnection of the steering lines.
High pressure Fluid Hazard:
Do not attempt disconnection of hydraulic lines with the
tractor running. The steering pressure line is active at all times
when the tractor is running. Set other remotes to Float and
shut down tractor to allow safe disconnections.
12. Disconnect hydraulic lines. Secure them so that they
13. Disconnect electrical cables, capping where
14. Release 3-point hitch. Restart tractor and pull away
do not touch the ground.
provisioned.
from planter.
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Page 62
3PYPA Table of Contents Index Operating Instructions
Figure 67
Planter Parked
29256
Possible Chemical Hazard:
Seed disks will have talc and graphite residue, and may have
residues of hazardous seed treatments. Do not wash disks
where food is prepared, or where cookware or dinnerware is
washed. Wear gloves when washing disks. Avoid spray.
Although the disks are dishwasher-safe, do not wash them in
an appliance also used for food cookware or dinnerware.
Removing the seed box or /hopper increases the life of the air
box seals, which are otherwise apt to be permanently
compressed if stored under load off-season.
Do not store bulk hopper outside on the ground. Raise it on
blocks, securing it in place to prevent from falling over or
blowing around by wind. Store inside if possible.
Long-Term Storage
1. If a fertilizer boom system is installed, see “Fertilizer
System Maintenance” on page 125.
2. Complete Parking steps (page 57). Park the planter
indoors if possible. Great Plains recommends
parking/storing in the raised position, unfolded, on
extended parking stands and with lift-assist cylinder
locks in place.
3. If no hopper or seed box is mounted, cap the air box.
4. If empty seed box or hopper is mounted, close the
seed gate and the lid.
5. If partially-loaded seed box or hopper is mounted,
close seed gate, and remove seed box. Store planter
only without seed.
6. See “Material Clean-Out” on page 102. Clear all
seed from seed container, air box, seed delivery
system and meters.
7. Open air box clean-out door and leave slightly ajar
so that condensed moisture can drain, but pests
cannot enter.
8. Remove seed disks from meters (this is primarily to
relieve pressure on brushes). Clean disks of residue
build-up (see Caution at right). Use mild soap,
non-abrasive scrubbers, and hot or warm water. If
using sealed storage, dry disks prior to storage.
9. Tie or tape a small plastic bag over ends of all seed
delivery tubes to prevent insects from entering or
nesting.
10. Close seed inlet shutters at meters (to prevent pest
entry to seed hoses). Thoroughly clean seed and
seed treatment residue from seed meters. See
“Meter Clean-Out” on page 103, for more
information.
11. Shut off all Y-tubes.
12. Clean planter of mud, dirt, excess oil and grease.
13. Lubricate all points listed in Maintenance.
14. Apply grease to exposed cylinder rods to prevent
rust.
15. Inspect planter for worn or damaged parts. Make
repairs and service during off season.
16. Use spray paint to cover scratches, chips, and worn
areas on the planter to protect the metal.
17. Cover planter with a tarp if stored outside.
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Adjustments
To get full performance from your 3PYPA planter, you
need an understanding of all component operations, and
many provide adjustments for optimal field results. Some
Even if your planting conditions rarely change, some of
these items need periodic adjustment due to normal
wear.
of these have been covered earlier in this manual.
Adjustmen t Page The Adjustment Affects
Frame height 21 Planting depth consistency
Frame level 22, 168 Planting consistency
Height Switch Adjustment 61 Correct off/on state of meter drive
Wing Leveling 168 Planting consistency
Clutch Lock-Up 49 Temporary operation with a failed clutch
Air System 45
Fan Speed 48 Optimal seed distribution
(values from SRMa)
Planting Rate SRM
Marker Adjustments
Marker Extension 170 Intended swath spacing
Marker Chain Length Adjustment 119 Marker folding operation
Marker Speed Adjustment 169 Reliable marker operation
Fertilizer Adjustments
Fertilizer Setup (option) 68 Seed germination and growth
Fertilizer Orifices (option) - Refer to 3PYPA planter Seed Rate manual
25AP Row Unit Adjustments
Opener Depth 76 Planting depth
Row Unit Down Pressure 71 Planting depth uniformity
Row Unit Lock-Up 84 Single/twin-row operation
Row Cleaner Adjustments (Option) 73 Row preparation
Coulter Adjustments (Option) 74 Seed depth uniformity
Opener Disk Adjustments 76 Seed depth, seed-to-soil contact
Side Depth Wheels 76 Seed depth, prevents plugging
Adjusting Gauge Wheel Scrapers 78 Consistent seed furrow depth
Seed Meter Setup and Adjustment 79 Consistent seed population
Seed Firmer Adjustments (Option) 85 Seed-soil contact
Press Wheel Adjustment 86 Effective soil coverage
Planting Rate Refer to Seed Rate manual
Monitor Adjustments PDC
a. SRM: Seed Rate Manual (401-647B)
b. PDC: DICKEY-john
®
Planter/Drill Control manuals
65 Consistent seed flow and disk singulation
a
Refer to Seed Rate manual
b
Refer to Seed Monitor manual
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Population and Equipment Wear Risks:
For ground drive, perform identical setups on each of the two
gauge wheel drives. Any differences can cause unpredictable
seed rate and excess clutch wear.
Seed
Rate
Control
Planter Drive Type
Contact Hydraulic
Coarse
Range Sprockets
(see Seed Rate Manual)
Seed Monitor
Console Data
Entry
(see Monitor
Manual)
Fine
Upper, Transmission
Drive Sprockets
(see Seed Rate Manual)
Figure 68
Seed Monitor Rate Screen
29772
Setting Material Rates
Planting Rate
Adjusting the planting rate requires the following:
1. Preparing rows:
Correct seed disk selection is required for correct
rate. Meter shutter setting and meter pressurization
adjustments assure the rate. See the SRM.
2. Monitor configuration:
The seed monitor must be set up with the correct
row count, row spacing and disk cell count. See the
Seed Rate Manual (SRM) and the DICKEY-john
Planter/Drill Control (PDC) manual.
3. Ground speed calibration:
Seed monitor rate control and reporting is only as
accurate as the speed reported by the radar. See the
PDC manual.
4. Setting seed rate, based on drive type:
®
• Hydraulic Drive:
Check, in the Seed Rate manual, that the intended
population and planting speed are within range for
the seed disk. Enter the rate on the console.
• Ground Drive:
Check, in the Seed Rate manual, that the intended
population and planting speed are within range for
the seed disk. Per the Seed Rate manual, select and
install the Range, Transmission and Upper drive
sprockets that provide that rate.
5. Checking planting rate:
Although the seed monitor reports a computed
population based on seeds sensed, only an actual
furrow check provides certainty about the actual
seeding rate. See the SRM.
Hydraulic Drive Rate
Entering a specific rate, and increment/decrement limits,
is done via the Material Setup screens, which require
User Level 2 privileges. See the PDC User Level 2/3
manual.
Area-specific mapped rates may be loaded via SD card
from compatible third-party farm prescription software
applications. Consult the software supplier documents.
Once set, an operator at User Level 1 may adjust the
rate from the main work screen. See the PDC User
Level 1 manual.
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Figure 69
Hitch Shim
29859
1
15
2
3
1231515
Figure 70
Height Switch Location
29123
1
1
Figure 71
Height Switch Adjustments
25442
5
4
3
2
6
23456
Hitch Shims
Refer to Figure 69
(an exploded view - remove only specified parts)
If the planter tends to pull to the right or left, inserting,
moving or stacking hitch shims may correct the problem.
The standard planter has one shim installed on the left. A
spare hitch shim was shipped with the planter.
To remove or insert a shim:
1. Loosen the eight nuts and bolts on the lower
hitch, only on the side to be changed.
2. At the four set screws , loosen the four jam nuts.
Drive the set screws in until the existing shim is
free, or the gap is large enough to insert a shim.
3. From the top, insert or remove:
401-943D SHIM HITCH FLANGE
4. Back out the four set screws. Tighten the eight nuts
and bolts. Turn the set screws in until they make
contact. Secure them with the four jam nuts.
Height Switch Adjustment
Refer to Figure 70
The planter includes a sensing switch that signals the
seed monitor (and activates the optional hydraulic drive),
when the planter is lowered for planting.
Although factory-preset for typical planting conditions,
Great Plains recommends adjusting this switch for your
exact field conditions and planting depth. Check the
switch seasonally thereafter, or when planting conditions
change. Also perform this adjustment if the switch is
replaced or dislodged.
The switch is located on the parallel arms connecting the
planter mainframe to the air cart.
Refer to Figure 71
1. Lower the planter to the height at which seed
delivery is to begin.
2. Loosen bolts holding switch bracket to frame.
3. Move bracket and switch up or down so switch
toggle arm makes contact with upper parallel
arm .
4. Move switch/bracket down
It may be necessary to loosen the screws holding
the switch to the bracket and rotate the switch slightly
on the bracket.
If the switch is ever completely removed, be sure to
replace it with the cable exit at the bottom. If the cable
is at the top, switch operation is reversed, and
moisture will accumulate in the switch, causing
eventual switch failure.
1
/4inch. Tighten bolts.
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Figure 72
Hydraulic Drive Gauge Wheel
25434
8
8
Figure 73
Adjusting Gauge Wheel Tension
25258
5
7
9
8
6
5
6
7
8
6556789
5
Gauge Wheel Adjustments
The gauge wheels, which may also be contact drive
wheels, serve three functions:
Refer to Figure 72
1. Regardless of meter drive type, the gauge wheels
each establish the heights of their respective wings.
A spring-loaded yoke assembly provides some
flexibility over rocks and uneven ground. See
“Gauge Wheel Tension” to set this spring.
2. In ground-drive (contact-drive), the gauge wheels
mutually contribute drive power for the row unit
mechanisms.
3. In ground-drive, the gauge wheels control the
planting rate at the meters, via three sprocket setup
positions. See “Setting Material Rates” on page 60.
Gauge Wheel Tension
Refer to Figure 73
Before performing this step, the planter center section
and wings must be level and aligned, and the tool bar
height must be set to 26 inches. If these steps have not
been performed, See “Frame Height and Leveling” on
page 22 and “Planter Leveling” on page 168.
As the gauge wheel tire wears, this adjustment may
need periodic attention.
The planter must be on firm, level ground for this step
(which may be performed when the planter leveling is
done). The planter must be unfolded.
1. Raise the planter so that the gauge wheels are just
off the ground.
2. Loosen the top nut above the yoke block .
3. Raise or lower the planter so that the base of the tool
bar is 26 inches from the ground.
4. Using an open-end or adjustable wrench at the
integral hex nut of the adjustment link , rotate
the link until the spring is just touching the yoke
block , with neither gap nor compression.
5. Tighten the top nut .
Ground Drive Adjustments
When planting, if the monitor indicates under-seeding,
check for slippage of the gauge wheels. If they are
slipping:
1. Raise the planter so that the gauge wheels are just
off the ground.
Refer to Figure 73
2. Loosen the top nut above the yoke block .
3. Using an open-end or adjustable wrench at the
integral hex nut of the adjustment link , rotate
the link to adjust the gauge wheel tension. Using the
base of the link flange, and the pivot zerk as
reference points, increase this distance to increase
down-force on the wheel.
4. Tighten the top nut .
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Figure 74
Hydraulic Down Pressure System
29194
John Deere 8000 Series tractors:
Set timer to continuous.
Push lever forward until detent clicks.
Case-IH Magnum tractors:
Lock lever forward in detent position. You may need to
turn up detent pressure to its maximum setting. Do not
tie hydraulic lever past detent position with a strap. See
your tractor dealer for hydraulic-system details.
Other tractors:
Lock lever forward in detent position. You may need to
turn up detent pressure to maximum or use a
mechanical detent holder to hold lever forward. See
your tractor dealer for providing constant flow to
openers.
On some tractors with very positive remote hydraulic
checks, a slight increase in the reading on the pressure
gauges may occur after the tractor remote lever is
returned to neutral. This is caused by back pressure on
the opener cylinders and may be ignored.
The NET OPERATING PRESSURE on the opener
cylinders is maintained at the pressure you selected
while the tractor remote lever was held forward–not at
the “apparently increased” pressure. Reactivating the
tractor lever forward confirms this
4
2
1
3
1
5
1234154
3
Hydraulic Down Pressure
Refer to Figure 74
If desired opener depth cannot be consistently achieved
using cam adjustment (page 72), or gauge wheels are
slipping at the force required, the optional hydraulic down
pressure system may remedy the problem. Cylinders
transfer some center section weight to wings, controlled
by valves at the front of the center section.
Oil Heating / Tractor Wear Risks:
The current hydraulic down pressure option is compatible only
with “closed center” tractor hydraulics.
1. Before making depth adjustments with valve ,
make sure the system (valve ) has been calibrated
(page 171), and review how the system behaves as
hydraulics are cycled.
To adjust hydraulic down pressure:
2. At all rows, set the cam (mechanical spring) down
pressure to notch 3 (page 72).
3. The lever for the down pressure circuit remote must
be LOCKED OPEN to provide constant
pressure/flow to the down-pressure cylinders. See
operations tips in sidebar for specific tractor models.
4. With the tractor hydraulic lever locked forward,
release the lock disk , turn the knob on the
pressure control valve .
5. Watch the pressure gauge and set the desired
pressure. Clockwise increases the pressure and
counterclockwise decreases pressure. The
recommended pressure range for planting is
between 400 psi and 600 psi.
6. Once the pressure is set, lock the knob with the
lock disk .
The row down-force setting controls the soil firming
pressure on the press wheel as well as the disk
penetrating force. DO NOT use more down-force than
necessary to obtain the desired opener penetration and
to maintain the proper firming action over the seed.
Excessive opener force leads to excessive wear and
damage of the opener components.
Priority Flow Hydraulic Systems
On some tractors with load-sensing hydraulics, the
circuit #1 is capable of taking nearly 100 percent of
available hydraulic flow. Operating the openers or
markers on circuit #1 will starve the other circuit, making
one function inoperable.
To operate markers and constant opener down pressure
at the same time, connect the lift assist to circuit #2 and
the markers to circuit #3.
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Figure 75
Weight Transfer Pin
29201
7
6
6
7
Sharp Overhead Object and Pinch/Shear Hazards:
Never allow anyone near the planter when folding or
unfolding the markers. Markers may fall quickly and
unexpectedly if the hydraulics fail. Anyone beneath may be
injured if hit by an unfolding marker, or caught in a folding
marker.
Figure 76
Marker Disk Angle
11757
T
2
1
N
W
T
2W1N2
T
Cart Weight Transfer
Some of the cart weight can be transferred to the
mainframe by retraction of the lift-assist cylinders, with a
weight-transfer pin in place. This operating mode is
compatible with wing-lock, wing-flex and hydraulic
down-pressure planters.
1. Disconnect the 3-point top link.
Refer to Figure 75
2. Install the lift-assist weight-transfer pins . The pins
are stored in a plate behind the cart parallel arm
pivot weldment. Install them in the large holes at the
bottom of the rod-end lug in the frame-to-cart parallel
arms.
3. Remove the lift-assist shear bolts from the small
holes below the lift-assist rod-end lug upper pivot
pins. Store the bolts in the plates behind the cart
parallel arm pivot weldments.
4. Fully retract the lift-assist cylinders when lowering
the planter in the field.
Marker Adjustments (Option)
See also:
• “Initial Marker Setup (Option)” on page 169 for
marker speed and marker extension
• “Marker Operation (Option)” on page 52; and,
• “Marker Maintenance (Option)” on page 119 for
marker shear bolt, marker chain length, and marker
hydraulic bleeding
Marker Disk Adjustment
Sharp Object Hazard:
Use caution when making adjustments in this area.
Marker disks may be sharp.
Refer to Figure 76
1. To change angle of cut, and the width of the mark,
loosen
For a wider mark , increase the angle of the
marker with respect to the tube . For a narrower
mark , reduce the angle.
Do not set a marker angle wider than need to make a
useful mark. Excess angle increases wear on all
marker components.
2. Tighten bolts .
Direction of travel tends to drive the disk angle to
Wide. If bolts are not tight enough, or loosen over
time, disk slips into the Wide mark configuration.
3
/8inch bolts holding the disk assembly.
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The meter pressurization system cannot reach full operating
pressure when the hoses, meters and disks are completely
empty. Low initial pressures are normal.
If a meter runs completely out of seed (“starved”),
back-pressure to the air box manifold may prevent prompt
refill. To fill a starved meter, close the seed inlet shutter for
about 15 seconds, then restore it to the original setting.
Fan and Adjustment
1. These steps presume that correct seed disks are
installed (Seed Rate Charts), and the seed inlet
shutters are set for the seed (page 79).
2. With fan off, check meter pressurization reported by
seed monitor. Re-zero as needed (see Seed Monitor
manual).
3. Determine recommended fan rpm based on your
own notes in the Seed Rate Charts, or the table on
page 48.
4. Determine the recommended meter pressurization
based on your own notes or the published value in
the Seed Rate Charts.
5. Start the fan. Gradually increase fan rpm using the
tractor’s hydraulic flow control for the circuit. Adjust
to the developed or suggested value from step 3.
6. Check that at least a small amount of pressure is
being sensed at the meters and meter pressurization
is near suggested value.
7. Perform a “FILL METER” operation for at least one
minute (see DICKEY-john
level 1 manual).
8. Check for meter fill:
With fan running, put the tractor in Park and set the
brakes. Walk behind the wings, remove several rain
covers, and check for seed in meters by looking
through the clear disks. Rows to check are those
with longer hoses or sharper hose bends.
9. Fill the disk pockets with seed:
Run a “FILL DISK” operation.
10. Check control air system pressure. With meters and
disks filled, meter pressurization should be at target
value.
11. Begin planting. Troubleshoot any obvious problems
or alarms.
12. During the first pass, take note of the average
populations reported on the seed monitor.
®
Planter/Drill Control user
Typical Location: Item:
Screen 1, first row
above graphs
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Average Overall Population
Page 70
3PYPA Table of Contents Index Adjustments
Small seeds, such as Milo, may be under-reported. Use
the “Alternate Skip/Double Check” below to verify
seed status at the disc pockets.
Furrow Check:
Expose several seeds in each of several rows, being
careful not to disturb their relative positions. Measure
and average the distance between seeds. Compare this
to the predicted seed spacing for the population in the
Seed Rate manual.
Any instances of no seed where expected may be a
sign of “skips”. Finding two seeds at the same spot is
clear indication of “doubles”
A small varying population deviation between rows is
normal; however, if a row is consistently running lower
or higher than the other rows, it could indicate a meter
or seed sensor problem that needs attention.
“Population Troubleshooting Charts” on page 92.
Insufficient meter pressurization, or unusually rough
fields, can increase the incidence of empty pockets. Be
sure to rule out other causes (such as skipping chains,
meter starvation, incorrect meter disks) before adjusting
meter pressurization to reduce apparent skips.
The suggested increment of change is two presses of
the “SPLIT AIR” softkey, at the factory default value for
change increments.
Excess meter pressurization can increase the incidence
of doubles. Be sure to rule out other causes (such as
incorrect meter disks) before adjusting meter
pressurization to reduce doubles.
If the reported population varies from your intentions by a
significant amount, it is imperative to perform a furrow
check. For serious rate variances, for which the source
of the problem and the solution are not quickly
determined, see “Population Troubleshooting Charts”
on page 92.
If the population is only slightly low, the problem can be
skips (periodic empty disk pockets). If slightly high, the
problem can be doubles (period pockets with double
seed). An adjustment to the meter pressurization may
correct either condition (see step 14).
13. Resume planting. During the next pass, note the
following two readouts on the seed monitor:
Typical Location: Item:
Screen 1, 2nd row
above graphs
Screen 1, 3rd row
above graphs
Minimum Row Population
Maximum Row Population
14. Skips:
If all else is correct, and the overall average
population is running low (or there are gaps upon
furrow check), the cause may be seeds falling out of
disk pockets before delivery to the seed tube.
Increase meter pressurization to correct this. You
can adjust meter pressurization with the planter in
motion.
Press the “SPLIT AIR +” softkey on the seed monitor
console. Wait 5 to 10 seconds for the system to
update, while you continue planting. Continue
making small increase adjustments until the reported
population levels out at the target value.
15. Doubles:
If all else is correct, but overall average population is
running high (or there are double seeds upon furrow
check), the cause may be two seeds in some disk
pockets at delivery to the seed tube. Decrease meter
pressurization to correct this. You can adjust meter
pressurization with the planter in motion.
Press the “SPLIT AIR -” softkey on the seed monitor
console. Wait 5 to 10 seconds for the system to
update, while you continue planting. Continue
making small decrease adjustments until the
reported population levels out at the target value.
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Alternate Skip/Double Check
Small seeds, particularly Milo, are less reliably sensed as
skips or doubles by the seed tube sensors, and watching
monitor population is unlikely to locate the pressure
limits. This test can also be quicker for all seeds.
A. After planting a few passes with initial settings,
remove the rain covers from several rows (use rows
with a variety of seed hose lengths and routes).
B. Make a meter pressurization adjustment. Resume
planting for a pass or less.
C. Stop planter motion but leave fan running.
D. Inspect the seed disks closely. Look for empty seed
cells (skips) and cells with multiple seeds (doubles).
E. Repeat step B-step D until limits are established.
Record limits. Reinstall rain covers. Plant with
median settings.
Figure 77
Fan and Manifold
29882
U
D
L
R
B
F
1
1
Fine-Tuning
After several passes, and you are comfortable with the
planter’s operation, you can optimize meter
pressurization. Use this method during longer passes, so
there are fewer distractions (and see sidebar regarding
Milo).
1. Observe the current overall average population
reported by the monitor.
2. Adjust the meter pressurization down, in discrete
steps, waiting 5 to 10 seconds between adjustments,
until skips occur (actual population begins falling
below target). Note the pressure at which skips
begin.
3. Restore pressure to the initial value at step 1.
4. Adjust the meter pressurization up, by periodic small
increments, until doubles occur (actual population
begins rising above target). Note the pressure at
which doubles begin.
If unable to adjust up to doubles (or skips happen
instead), seed delivery is probably being starved of
air. Increase fan rpm and repeat limit search.
5. Adjust meter pressurization to a value halfway
between the limits established at step 2 and step 4.
This is the ideal value for your crop, disk and
population, providing equal margin against skips and
doubles. Record this value for future use.
Seed Delivery Fan Adjustments
Refer to Figure 77
The primary control for seed delivery air is fan rpm. The
servo vane (not shown), under the control of the split air
system, takes whatever is needed to maintain meter
pressurization (the top three manifold outlets ).
Remaining air is sent to the bottom outlet for seed
delivery.
Adjust the basic fan rate with the tractor hydraulic system
and the fan rpm display of the seed monitor. Do not run
at speeds over 3000 rpm or speeds under 2000 rpm.
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Agricultural Chemical Hazards:
Avoid contact with skin or eyes. Wear proper protective
equipment as required by chemical manufacturer. Avoid
prolonged breathing of chemical fumes. Wear respirator as
required by chemical manufacturer.Some chemicals will cause
serious burns, lung damage, and death. Seek medical
assistance immediately if accident occurs. Know what to do in
case of accident.
Figure 78
Fertilizer Drop Line Shutoff
29984
Agricultural Chemical Hazard:
Wear protective gloves when exchanging nozzles and caps.
1
3
2
4
5
12314
Liquid Fertilizer Adjustments (Option)
If installed there are two adjustments for the Great
Plains-provisioned components:
1. Row orifice setup
Orifice plate sizes are chosen to assure consistent
pressure at all nozzles. Refer to the Seed Rate
manual.
2. Relief valve setting
See “Fertilizer Row Shut-Off” on page 69.
Great Plains recommends checking with your local
agronomist as soil conditions vary. Soil conditions in your
area may need less or more fertilizer than represented in
these charts. In furrow, do not exceed 12 gallons per
acre in any case.
The liquid fertilizer system is designed to operate
(ideally) between 15 and 40 psi, but in no case more
than 65 psi. Several system elements affect system
pressure, and need initial setup, periodic maintenance,
and adjustment when changing fertilizer rates.
Fertilizer Orifice Plates
Refer to Figure 78
To install, insert the plate inside the gasket supplied
with the nozzle . Insert the gasketed plate with the
legend side facing out the nozzle outlet (typically up).
In general, the orifice needs to be small enough to
create at least 15 psi of pressure in the manifold to
operate the check valves but large enough to prevent
the manifold pressure from exceeding 65 psi.
The minimum pressure is required to even out the flow of
fertilizer between rows. To reduce orifice plugging and
pump wear, use the largest orifice practical for your
fertilizer application rate. Alternate orifice plates are
listed in the Seed Rate manual.
The best pressure range to maintain is 20 to 40 psi to
ensure optimum distribution while minimizing leakage.
Built-in check valves at the row units prevent flow below
15 psi.
The Seed Rate Chart book for this planter (manual part
number 401-647B) contains a table of orifice sizes in
gallons per acre.
System Damage/Uneven Application Risks:
Select orifice plates to balance flow. Sizes too small can result
in system rupture. Sizes too large can result in unbalanced
flow. Orifice plates do not set fertilizer rate. Rate is set at the
pump. Plates only create back-pressure to balance flow.
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Figure 79
Fertilizer Drop Line Shutoff
29984
Agricultural Chemical Hazard:
Wear protective gloves when
exchanging nozzles and caps.
5
1
2
3
4
351
Figure 80
Fertilizer Relief Valve
25164
1
2
3
4
5
6
7
12345677257
5
Fertilizer Row Shut-Off
Refer to Figure 79
Fertilizer booms for twin-row planter include caps for
shutting off flow at unused rows. If switching from
twin-row to single-row operation, and applying fertilizer,
replace the drop line nozzles with 832-042C caps
at unused rows.
The orifice plates may be removed or left in place.
Adjust pump for new rate. Review orifice size selection
for the new rate. Keep in mind that the row spacing has
changed.
Material Loss Risk:
Do not apply materials without first reviewing setup. Shutting
off rows does not change the application rate. Unless the pump
is reset, it operates at the prior rate, doubling the flow at each
nozzle. This can result in excess pressure, and material loss at
the relief valve.
Fertilizer Relief Valve
Refer to Figure 80
When a fertilizer system is installed, a relief valve and
pressure gauge are mounted near the fertilizer inlet
at the hitch and provides the fertilizer feed to the
manifold (manifold not shown). The relief valve protects
the manifold, lines and fittings from excessive pressure.
Any product that dumps over the relief valve will
discharge from the dump line in relative safety.
To set relief valve:
1. Unlock plastic jam nut from relief valve knob.
2. Unscrew knob clockwise (looking down) until it
3. Screw knob counterclockwise two turns.
4. Observe manifold gauge and watch for relief valve
5. If valve is dumping product and gauge reads under
6. If the pressure gauge reads above 65 psi, change to
loses contact with internal spring.
Start at this setting.
dump line discharge while operating in the field.
65 psi, stop tractor and turn knob clockwise
1
/4turn. Continue operating at normal field speed.
Repeat this step as needed until no product is
discharged from relief valve dump line .
a larger orifice. Go to step 2 and repeat.
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Figure 81
25 Series Row Unit
29600
2
1
3
4
5
6
7
8
9
10
11
12
14
15
16
13
6
25 Series Row Unit Adjustments
Refer to Figure 81 (which depicts a row unit
populated with most optional accessories supported
for use with the Planter)
From front to back, a Great Plains 25 Series Air-Pro row
unit can include the following capabilities (some
optional):
1. Lock-Up Pin Storage Hole (Hole Standard)
See “Row Unit Shut-Off” on page 82.
2. Down-Pressure Cam (Standard)
Row units are mounted on parallel arms. This
parallel-action mounting allows the row-unit to move
up and down while staying horizontal. Springs add
an adjustable force, set by the cam, to the row
weight. See “Row Unit Down Pressure” on
page 71.
3. Air Inlet (Standard)
Pressure-regulated air enters the meter here and
holds seed in the disk pockets. See “Fan and
Adjustment” on page 65.
4. Seed Delivery Hose Inlet (Standard)
Air carrying the bulk seed is vented at the bottom of
the air release cone. Gravity then carries the seed
into the meter at the shutter . The hose is easily
removed for inspection. There are no adjustments.
5. Air-Pro Seed Meter (Standard, Choice of Disks)
See “Air-Pro Meter Disk Installation” on page 81.
6. Seed Inlet Shutter (Standard)
This controls the level of bulk seed at the disk. There
are four operating settings, plus fully open
(clean-out) and fully closed (shut-off or storage). See
“Seed Inlet Shutter Adjustment” on page 79.
7. Side Gauge Wheel Depth (Standard)
The T-handle sets planting depth by controlling the
height of the side gauge wheels relative to the
opener discs. See “Side Gauge Wheel
Adjustment” on page 77.
8. Press Wheel Force, Angle, Stagger (Standard)
The press wheels close the furrow, gently pressing
the soil over the seed to ensure good seed to soil
contact for even emergence. See “Press Wheel
Adjustment” on page 86.
9. Row Unit Lock-Up Hole (Hole Standard)
Pins are standard on some models. With the row unit
raised above level, the lock-up pin is inserted here.
See “Row Unit Shut-Off” on page 82.
10. Row Cleaner (Option)
Row cleaners clear trash from the row, to a depth set
by an adjustment on the arms. See “Unit-Mount
Cleaner Adjustments” on page 73.
seed furrow. Working depth is set by row depth and
a mounting hole selection. See “Coulter
Adjustments” on page 74.
12. Opener Discs (Standard)
Row-unit double disc openers create the seedbed
furrow. They have adjustments for angle and
spacing. See “Row-Unit Opener Disk
Adjustments” on page 76.
13. Seed Tube with Sensor (Standard)
Requires no adjustment.
14. Scrapers (Optional, not shown)
Inside scrapers require no adjustment. For gauge
wheel scrapers, see “Adjusting Gauge Wheel
Scrapers” on page 78.
15. Seed Firmers (Seed Flap Standard, not shown)
An optional seed firmer (Keeton
seed bounce and improves soil contact. It may also
deliver fertilizer. See “Seed Firmer Adjustments” on
page 85.
16. Press Wheel Type (Choice)
A variety of single and dual press wheel assemblies
are available, some region-specific. Consult your
Great Plains dealer.
Equipment Damage Risk:
Do not back up with row units in the ground. To do so will
cause row unit plugging and may result in severe damage.
®
shown) minimizes
11. Unit-Mount Coulter (Option)
Coulters cut remaining trash and begin opening the
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Figure 82
Checking Furrow
29600
{
Inspect Furrow Here
Light or no side gauge
wheel tracks
Insufficient down-force
Increase down-force
Gauge wheels compress
loose soil only
Ideal
No adjustment required
Side gauge wheels
making deep tracks
Down-force too high
Reduce down-force
Figure 83
Assessing Down-force
1
2
3
Figure 84
25 Series Row Unit Springs
29600
1
1
Row Unit Down Pressure
Refer to Figure 82
The ideal amount of down-force causes the side gauge
wheels to compress any loose surface soil, but not press
a trench into subsoil.
To assess down-force, operate the planter for a short
distance on typical ground (with or without seeding), and
stop. Leave the planter lowered (row units in ground).
At several row units, inspect the furrow created by the
opener discs, but prior to furrow closing by the press
wheels.
Be sure to inspect rows both in and out of tire tracks.
Refer to Figure 83
1. If the side gauge wheels are leaving no tracks, or
light tracks, increase down-force.
2. If the wheels are compressing trash and loose soil,
and leaving clear tracks right at the top of the
subsoil, down-force is probably correct and needs no
adjustment.
3. If the wheels are creating a trench into the subsoil,
down-force is too high and needs to be reduced.
Adjusting Down-Force
Refer to Figure 84
Row unit springs provide the primary down pressure
necessary for row unit disks to open a seed trench. The
weight of the row units themselves contributes about
130 pounds (59 kg) of the total force.
The springs allow the row units to float down into
depressions and up over obstructions. Springs also
provide down force on coulters when using optional row
mounted coulters, and provide the primary down force on
row cleaners (optional), seed firmers (optional), and
press wheels.
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Figure 85
25AP Series Row Unit
Spring Adjustment
29605
3
5
2
2
Cam Notch Pounds Kilograms
zero (out of notch) Lock-Up & Maintenance
one 235 105
two 260 120
three 295 135
four 355 160
five 415 190
six 475 215
tip Do Not Use
29831
Figure 86
Row Unit Minimum Cam (at 1)
27065
bottom
4
6
3
Figure 87
Row Unit Maximum Cam (at 6)
27065
top
452
6
An adjuster cam sets down pressure individually for
each row unit. This is useful for penetrating hard soil and
planting in tire tracks. For best results always adjust
tractor tires so they are not ahead of 30 inch or 70 cm
rows.
Refer to Figure 86
Use only enough down pressure to cut the seed trench
and maintain proper soil-firming over seed. Excessive
row unit down force will lead to premature wear on row
unit components, uneven seed depth and gauge wheel
slippage.
Refer to Figure 85 (shown at cam setting 2),
Figure 86 and Figure 87
To adjust down pressure, use a 1
1
/8inch (29 mm) open
end wrench or the tool stored under the walkboard.
1. Raise the planter. Although this adjustment can be
made with the planter lowered, the springs will be in
tension, and will require more effort. The extra force
required may also damage tools.
2. Install lift cylinder locks.
3. Put tractor in Park and shut it off.
4. Position wrench on the fixed nut near or slightly
forward of vertical.
5. Pull upper spring link back.
6. Move the adjustment cam to the new setting on
the spring adjust bar .
Do not set all rows higher than notch four. Using high
settings across all rows causes uneven planting.
Individual rows may be set higher if running in tire
tracks.
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Sharp Object Hazard:
Wear hand protection when working in this area. Row cleaner
tines, casting edges and coulter blades are sharp.
Figure 88
UMRC: Cleaner Adjust
27308
3
2
1
365
Figure 89
UMC-RC: Row Cleaner Adjust
27343
6
4
5
521
32645
Unit-Mount Cleaner Adjustments
Refer to Figure 88 and Figure 89
Optional Martin row cleaners are unit-mounted, using:
UMRC: Unit-Mount Row Cleaner (stand-alone), or
UMC-RC: Unit-Mount Coulter RC (on coulter bracket,
with or without a coulter disk present).
There are two adjustments:
1. Wheel placement (forward or aft mounting hole, for
more or less aggressive cleaning), and
2. Wheel height, adjusted by a stop. Cleaner arms
float. The stop only sets the lowest position.
In UMRC mount, a pinned cross-tube on the mount
adjusts the depth. In UMC-RC (coulter) mount, a sliding
down-stop block adjusts how close to the ground the
row cleaners operate.
The row cleaner needs to be adjusted for your
conditions, crop changes, and as coulters and openers
wear. Ideally, cleaners contact only the trash, and do not
disturb the soil. If allowed to “dig”, row cleaners can
reduce seed coverage.
Suggested initial depth is tine tips at ground level.
Make the adjustment with the planter raised. Install
lift-assist cylinder locks. Also check bolt tightness prior
to each planting session, to avoid down-stop slippage.
To adjust the row cleaner:
1. Determine the height adjustment required. Measure
from the lowest tine to the ground. Determine the
desired new measurement.
2. Support most or all of the weight of the arm to
prevent injury and ease the adjustment. Loosen
bolts on UMC-RC. Remove bent pin on UMRC.
3. Support arm at desired height.
4. UMRC: Slide adjustment tube until cross-tube
contacts arm at target height. Insert bent pin in
whichever hole pair is most in alignment.
5. UMC-RC: Slide the down-stop on the arm :
- back toward the pivot for shallower cleaning, or
- forward toward the tines for deeper cleaning.
Tighten the bolts . Each possible hole pairing
adjusts the tine height by about
6. Check the new height measurement.
Refer to Row Cleaner Manual 204-085M-A for further
information on use, adjustment, and maintenance of row
cleaners.
3
/4inch (19 mm).
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Figure 90
25 Series Unit-Mounted Coulter
29124
7
Figure 91
Coulter Blade Mounting Holes
29125
1
2
5
4
3
6
7235146
Coulter Adjustments
Coulters are not factory-installed. Check alignment
and depth prior to first use.
Coulter Depth Adjustment
The ideal operating depth for coulters is
above opener depth. Although they may have originally
been set to this depth, coulter (and opener) blades wear
with time, and may need adjusting.
Adjusting the coulter depth is accomplished by
remounting the coulter blade in one of the six mounting
holes arranged in a staggered pattern in the coulter
bracket.
Refer to Figure 90 and Figure 91
Raise planter and install cylinder locks before working on
coulters. Row unit may be fully lowered or locked up. Do
not attempt to move blade when the current or new
position causes it to contact the ground during the
adjustment. Be careful around the front end of row units.
Row cleaner tines and coulter blades may be sharp.
To adjust coulter depth:
1. Determine the present opener and coulter depths.
2. Note which bracket hole the coulter is presently
using.
3. Determine which new hole will position the coulter
closer to the
1
/4inch-above depth. See the table
below.
4. Remove the
5
/8-11 4 inch bolt, lock washer and
nut ( in Figure 90).
5. Move the blade to the new position. Insert the bolt,
and tighten on the lock washer and nut.
1
/4inch (6 mm)
Hole
Number
Depth of (new) coulter blade relative to (new)
opener blades
1 inch (25 mm) above
5
/8inch (16 mm) above
1
/4inch (6 mm) above
0
3
/8inch (9.5 mm) below
3
/4inch (19 mm) below
6. Readjust row cleaners, if installed.
If a worn coulter cannot be adjusted to satisfactory
operating depth, replace coulter.
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Figure 92
25 Series Coulter Alignment
26125
1
2
3
123
Figure 93
25 Series Coulter Mount
26126
4
4
Coulter Row Alignment
Refer to Figure 92
For unit-mounted coulters, the ideal alignment is for the
blade to open a furrow directly ahead of the opener
discs.
As a check on coarse alignment, sight along the coulter
blade center-line , the gap between the opener
blades , and the centerline between the press
wheels . If they are clearly out of alignment, either the
coulter or the press wheels (or both) may be in need of
adjustment.
The exacting test of correct alignment is field results.
Operate the planter on some test ground (no seed
required), and verify that the opener blades are in the
groove opened by the coulter, and that the press wheels
are centered over the furrow. See “Press Wheel
Adjustment” on page 86 for press wheel alignment.
Refer to Figure 93
To adjust coulter alignment, loosen the four bolts that
attach its bracket to the row unit. The holes on the row
unit are slotted, side-to-side, and allow the coulter
bracket sideways and rotational adjustment.
Keep the coulter blade vertical while adjusting.
If the blade cannot be brought into alignment, check that
the blade spindle itself is using the same hole location on
each side of the bracket.
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Figure 94
Opener Adjustments
29600
2
3
1
111
1
Figure 95
Opener Disc Contact Region
26127
4
5
4
Figure 96
Opener Disc Spacers
26128
9
8
6
7
5
67898
9
Row-Unit Opener Disk Adjustments
25 Series openers have three adjustments:
1. planting/seed depth
2. opener disc to disc clearance
3. gauge wheel/opener disk clearance (page 77)
Setting Planting Depth
Refer to Figure 94
The “T” handle sets planting depth by limiting the how
high the side depth gauge wheels ride relative to the
opener disks. The position of the seed tube itself is fixed
relative to the disks, and is not adjusted.
To adjust seed depth, pull the “T” handle up and back,
move it forward or aft, and set it back in a different pair of
holes in the scale.
• For shallower planting, move the “T” handle
forward.
• For deeper planting, move the “T” handle back.
Opener Disc Contact Region
Refer to Figure 95
Opener disc angle and stagger is not adjustable, but
disc-to-disc spacing is, and may need attention as discs
experience normal wear. Spacers will need to be reset
when blades are replaced.
The ideal spacing causes the blades to be in contact for
about one inch . If you insert two pieces of paper
between the blades, they should slide to within zero
(touching) to 1.5 inch (3.8 cm) of each other. If zero, the
gap between the blades should not be significantly
greater than the thickness of two sheets of paper.
If the contact region is significantly larger or there is a
large gap, it needs to be adjusted by moving one or more
spacer washers.
Adjusting Disc Contact
Refer to Figure 96
1. Raise the planter and install lift cylinder locks.
2. Remove the side gauge wheels on the row unit in
need of adjustment.
3. Remove the bolt retaining the opener disc on
one side. Carefully remove the disc. Do not lose the
hub components and spacer washers , .
4. To reduce the spacing between the discs (the normal
case), move one spacer washer from the inside to
the outside of the disc.
5. Reassemble and check disk contact.
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Figure 97
Disk/Gauge Wheel Alignment
Incorrect
Correct
Opener
Disks
Side Gauge
Wheel
Side Gauge
Wheel
Figure 98
Opener-Gauge Wheel Contact
22531
Contact Within this Area
Figure 99
Checking Wheel/Disc Contact
26129
12241
Side Gauge Wheel Adjustment
Refer to Figure 97 and Figure 98
Disc-to-wheel angle and clearance ideally has the wheel
just touching the disk when the wheel is raised to
planting depth (is up against the stop set by the “T”
handle. The goal is to have both disks and wheels turn
freely, but keep soil and trash from getting between
them.
These two adjustments interact with each other.
Changing one requires at least checking the other.
In addition to changing the disk angle due to changing
depth or new field conditions, these two settings may
need attention over time as the disk and wheels wear
from normal use. This adjustment will also need to be
made if any opener components are replaced.
Refer to Figure 98
For 2 inch (5.1 cm) planting depth, adjust side gauge
wheel angle so wheels contact row unit disks at the
bottom of wheel. Check with row units in soil so wheels
are held up.
At the same time, keep side gauge wheels close to
opener disks so openers do not plug with soil or trash.
Wheels should be out far enough so disks and wheels
turn freely.
Refer to Figure 100 on page 78
To adjust side gauge wheels:
1. Raise the planter and install lift cylinder locks.
2. Loosen hex-head bolt . Move wheel and arm out
on O-ring bushing.
3. Loosen pivot bolt Turn hex adjuster so indicator
notch is at 5 o’clock to 7 o’clock.
Use this as the starting point for adjustment.
4. Move wheel arm in so side gauge wheel contacts
row unit disk. Tighten hex-head bolt to clamp arm
around bushing and shank.
Refer to Figure 99
5. Check wheel-to-disk contact at 2 inch (5.2 cm)
planting depth. Lift wheel 2 inches, check contact
and release. When let go, wheel should fall freely.
• If wheel does not contact disk at bottom to area
where blade leaves contact with soil, move hex
adjuster until wheel is angled for proper contact with
disk.
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Starting Point
Figure 100
Disk/Gauge Wheel Adjustment
22524
22525
2
2
1
4
4
1
112
Figure 101
Gauge Wheel Scraper
25273
8
5
6
7
568687575
• If wheel does not fall freely, loosen hex-head bolt
and slide wheel arm out just until wheel and arm
move freely. Tighten hex-head bolt according to
grade:
3
/8inch Grade 5 bolt on 25 series:
75 foot-pounds (102 N•m).
3
/8inch Grade 8 bolt on 25 series:
110 foot-pounds (149 N•m).
Use “Torque Values Chart” on page 143 for
reference.
6. Keep turning hex adjuster and moving wheel arm
until the wheel is adjusted properly. When satisfied,
tighten pivot bolt to 110 foot-pounds (149 N•m).
Adjusting Gauge Wheel Scrapers
Refer to Figure 101
Scrapers are optional, and may be useful in moist or
sticky soils that tend to accumulate on gauge wheels and
reduce intended planting depth.
To adjust scrapers:
1. Loosen nut .
2. Slide scraper toward gauge wheel until scraper
touches tire.
3. Slide scraper away from wheel leaving a
1
/8inch (3 mm) gap at .
4. Rotate scraper left and right around bolt, making
sure it cannot touch tire if bumped in field. If it can
touch tire, back scraper away from wheel until it
cannot.
5. Center scraper angle on bolt until gap is
constant.
6. Tighten nut .
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Figure 102
Rain Cover Removal
29606
1
2
3
123
Figure 103
Seed Inlet Shutter
29607
0
5
|
II
III
||||
Setting Setting Typically Used For
Top (0) Closed: Row Shut-Off, Meter Re-Fill
| (1)
Small seeds, such as Milo, with little or no
treatments
|| (2)
Small treated seeds and edible beans
(such as Soybeans)
||| (3) Corn, round popcorn
|||| (4) Large corn, or heavily treated corn
Bottom (5) Wide Open: Clean-Out
Seed Meter Setup and Adjustment
There are adjustments for seed inlet, and choice of
disks. There are no other adjustments, in particular no
brush adjustments, at the meter.
Meter Rain Cover
The rain cover keeps side winds from unseating seed in
disk pockets. It also keeps precipitation, sunlight and
field debris out of the meters.
Refer to Figure 102
To remove the rain cover, peel the flexible snap latches,
at top and rear , away from the meter housing. Pivot
the cover forward and down at tab in slot.
When removing a cover, inspect it for damage and
missing parts. If a cover does not have both latches, and
an intact edge seal under the latches, the cover is apt to
be lost during transport or field operations.
To replace a latch, temporarily remove the seal near the
latch. Slide the replacement latch onto the cover lugs
from the meter side, then snap the other end down over
the lugs. Reinstall the seal.
Seed Inlet Shutter Adjustment
Refer to Figure 103 (showing the shutter at setting 3)
The seed inlet shutter regulates the volume of bulk seed
presented to the seed disk. The operating settings vary
with crop, seed size and treatments. The shutter also
has settings for row shut-off (completely closed), and
clean-out (wide open).
The Seed Rate Charts include suggested initial shutter
settings. Refine these settings based on experience, and
on inspection of the slope of the seed pool at the bottom
of the seed disk.
The shutter is operated by a handle. Lift the handle away
from the meter plate. Move the handle to half a setting
higher than the new setting, then back to the new setting,
and lower the pawl into that slot.
The table at right is a general summary of shutter
settings.
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Figure 104
Milo: Seed Inlet Shutter at: 1
29602
1
8:00
1
Figure 105
Soybeans: Seed Inlet Shutter at: 2
29604
1
8:30
1
Foreign Object Risk:
After clearing a bridge, or a delivery blockage upstream,
check the seed pool at the meter for any debris that might have
been the original cause. Remove such debris from the meter
before planting. Don’t run the risk of an object lodging in a
seed pocket and causing on-going skips.
Figure 106
Corn: Seed Inlet Shutter at: 3
29603
1
8:30
Optimal Seed Pool Slopes
The optimal seed slope is one that results in the most
consistent seeding, with minimal skips and doubles. The
column at right has photographs of pool slopes found to
be optimal for representative seeds.
If the suggested initial shutter settings do not seem to be
working for your seed, adjust the shutter to achieve
specific reserve slope targets.
Refer to Figure 104
For medium size and smaller seeds that flow easily, the
slope runs from just above the 8:00 (o’clock) position on
the housing wall, forward and down to one or two seeds
deep at the base of the rear strip brush .
Refer to Figure 105 and Figure 106
For medium size and larger, or heavily treated smaller
seeds that flow less easily, the slope runs from at or
slightly above the 8:30 (o’clock) position on the housing
wall, forward and down to 3-6 seeds deep at the base of
the rear strip brush .
In general, the seeds at the base of the strip brush need
to be deep enough that no air escapes there, and so that
just enough seeds are present to begin populating cells.
Keep the top left/rear end of the pool below the 9:00
o’clock position (meter horizontal center-line).
Meter Refill
Once planting is underway with the seed pools set, it is
infrequently possible for bridging at or above the inlet to
starve the meter of seed.
An empty meter causes seed monitor “Row Failure”
alarm, with a report of the row number. Row numbers are
counted from the left wing (outside row is row 1).
Stop, and put the tractor in Park. Leave the fan running.
Locate the failed row, remove the rain cover, and verify
that the meter is empty. Note the shutter setting.
Temporarily open the shutter one of two notches wider. if
the problem was inlet bridging, seed should flow into the
meter immediately.
If inlet bridging is not the problem, little or no seed flows
into the meter with the shutter open wider. In this case,
the problem is further upstream in the seed flow, and
may be bridging at the air release screen at the top of the
meter. Close the shutter completely for about
15 seconds. This prevents meter pressurization air from
opposing seed delivery air. The delivery air pressure
usually collapses the bridge. Re-open the shutter and
see if seed now fills the meter.
If no obvious foreign object was the cause of the
bridging, the shutter setting may have been too small for
the seed. Verify that this and other operating rows were
at the correct initial shutter setting. If so, re-set the
shutters to the next higher opening.
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Figure 107
Disk Removed From Meter
29608
2
1
1
2
Figure 108
Disk on Clamp and Seat
29611
3
1
4
1
3
Figure 109
Disk Clamped
29614
4
Air-Pro Meter Disk Installation
1. Cross-check Seed Rate Chart data against part
number/description molded into disks to be used.
Population Risk:
Use the same disk in all active rows.
2. Inspect disks to be installed. Do not install damaged
or excessively worn disks. Either can cause irregular
seeding. Chips and cracks accelerate brush wear.
3. Remove meter rain cover (page 79).
Refer to Figure 107 (depicting an empty meter)
4. Inspect meter (see page 105 for details).
5. Make sure clamp is aligned with seat .
Refer to Figure 108
6. With the seed pocket side facing the meter housing,
place the new seed disk on the disk seat.
7. Rotate disk clamp clockwise 45° to clamp disk.
Clamp seats into detents in disk hub.
On a new meter, or with new brushes installed, force
the disk into the brushes to allow the disk clamp to
rotate. This condition eases as the brush fibers are
trained during initial rotations.
With slightly used brushes, when a disk is first
clamped, it is normal for the disk hub to be flat with the
face of the disk seat only on the inlet (rear) side. The
disk fully seats as it first turns. This condition eases as
the brush fibers receive further use.
Brush Mis-Seating Risk:
Rotate disks forward shortly after disk installation. If planting
is not anticipated within an hour or two of disk installation,
rotate the drive system a few turns to ensure that meter brushes
lean in the correct direction. Correct lean improves meter
performance and reduces air consumption. This step is
particularly important for new brushes.
Brush seating may be accomplished with or without seed
present, and may be combined with “FILL DISK”. An
alternate method, which avoids running the tractor,
monitor and fan, is to rotate the section’s meter drive
shaft, top forward, with a
8. Reset seed inlet shutter to setting recommended
by Seed Rate Chart, or to your own developed value.
9. On the seed monitor console, select the new
Material, seed disk Cell Count, and target
population.
10. Reinstall rain cover (page 79).
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7
/8inch open-end wrench.
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3PYPA Table of Contents Index Adjustments
Figure 110
Remove Disk
29611
3
1
4
4
1
2
Figure 111
Seed Inlet Shutter Closed
29609
2
1
Removing a Seed Disk
Refer to Figure 110
1. Remove rain cover. If seed is present, close
shutter to prevent more seed from entering meter.
Attach funnel (page 103).
2. Hold seed disk in meter. Rotate disk clamp
counterclockwise 45 to release disk.
3. Tilting top of disk toward meter, slowly remove disk,
allowing seed to collect in funnel. Open shutter to
release remaining seed up to wing tube.
4. Clean seed from all brushes. Clean disk seat ( in
Figure 107 page 81), so that new disks can seat fully.
Inspect brushes for excess wear and damage. See
“Meter Brush Maintenance” on page 105.
5. Inspect removed disks for excess wear and damage.
Set aside any disks requiring replacement. Clean
other removed disks and place in storage. See
“Seed Disk Maintenance” on page 107.
6. Reinstall the rain cover (page 79).
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.
2. Fully close seed inlet shutter (always done).
3. Replace seed disk with blank disk (always done).
4. Close seed flow to row at Y-tube (if present).
5. Lock up row unit to reduce wear (optional).
6. Reset marker extension (if used, page 170).
7. Reset monitor active row pattern and row spacing to
avoid nuisance alarms (always done).
8. Shut off fertilizer drop lines (Option, see Seed and
Fertilizer Rate manual 401-647B for details).
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.
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3PYPA Table of Contents Index Adjustments
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 112
Shutter Closed, Blank Disk Installed
29610
2
1
Figure 113
Y-Tube Open and Closed
29758
Figure 114
25AP Row Unit Lock-Up Pin
25269
29600
1
2
3
4
5
123
2. Close Seed Shutter
Refer to Figure 111 on page 82
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. If the row is served by a Y-tube, the
Y-tube also needs to be shut off for the row (step 4).
3. Install Blank Disk
Refer to Figure 112
Clean out meter. See “Meter Clean-Out” on page 103.
Remove seed disk and install blank disk. See “Air-Pro
Meter Disk Installation” on page 81.
Blank disks (part number 817-841C) are essential in row
shut-off, both to maintain consistent meter back-pressure
to meter pressurization and to prevent wear on a seed
disk.
Blank disks are engineered to simulate a seed disk with
seed in all pockets. Blanks are particularly important on
the rows with sensor lines to the pressure chamber.
4. Close Y-Tubes
Refer to Figure 113
If any shut-off rows are served by a Y-tube, close the
valve for the branch to that row. Rotate the valve cap
until the indicator/handle is perpendicular to the tubes.
Closing the Y-tube prevents seed from entering an
unused hose, reducing waste and simplifying clean-out.
5. Lock-Up Row
Alternate twin-row units (the rear units) can be pinned in
the up position to accommodate single-row spacing.
Refer to Figure 114
The lock-up pins for each front row unit are located in
a storage hole in the row unit mount. To lock up a unit,
the unit must be raised, and the pin moved to the lock-up
hole in the row unit shank.
Crushing and Sharp Object Hazards:
Do not attempt to lift a row unit by hand. The weight of the
unit, plus the force of the springs (even at minimum) is too
great (plus, a free hand is needed for pin insertion). Even with
multiple people lifting, hand-lifting is unsafe - there are
numerous sharp edges, and the row unit snaps down violently
if a grip is lost.
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3PYPA Table of Contents Index Adjustments
Certain Machine Damage:
Do not pin the row unit while it is in the lowered position.
If the pin is inserted below the parallel arm, unit damage
occurs as soon as planting begins.
Figure 115
25AP Row Unit Locked Up
29756
3
4
523
28420
If you lose a pin, the replacement part number is
805-033C
1. Raise the planter. Although this adjustment can be
made with the planter lowered, the springs will be in
tension, and will require more effort. The extra force
may also damage tools.
2. Install lift assist cylinder locks. Lower parking stands.
3. Set the down pressure spring cam to zero, per the
instructions on page 72.
4. Raise the row unit high enough that the hole for the
pin is above the lower parallel arm. This can be done
in several ways, including:
a. use a hoist at the rear of the shank
b. use a jack under the shank extension
Crushing Hazard:
Use a jack or hoist. Raising a row unit on a block by lowering
the planter is risky. The potential for hydraulic failure creates
a safety hazard. Full lowering can damage components.
Refer to Figure 115
5. Remove the pin from the storage hole and insert
and secure it in the lock-up hole .
6. Lower row unit until lock-up pin rests on lower
parallel arm.
Sprocket Indexing (Stagger)
If you are planting:
• finger-metered,
• twin-row crops,
• at seed interval spacings above 6
3
/8inches (16.5 cm),
you can synchronize each pair of adjacent meters in a
twin row so that you achieve the maximum seed-to-seed
spacing between the units of the pair.
Refer to the Seed Rate Manual (401-647B) for
instructions and charts.
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3PYPA Table of Contents Index Adjustments
Figure 116
Keeton
®
Seed Firmer
28316
Engage the lever stop under the handle when
Seed-Lok
®
is in use. If left disengaged , a furrow
obstruction could cause unintended lock-up.
Figure 117
Seed-Lok
®
Lock-Up
31543
2
3
1
4
2
3
5
6
112314561
4
5
Seed Firmer Adjustments
Series 25 row units include a standard seed flap, and
accept one of two optional seed firmers (which may be
included in your selected opener bundle).
Sharp Object Hazard:
Row unit disk blades may be sharp. Use caution when making
adjustments in this area. To adjust the Keeton
lower the planter until the disks of the row units are resting on
the ground.
Keeton
The optional Keeton
®
Seed Firmer Adjustment
®
Seed Firmer is an engineered
polymer shape that slides down the seed trench. It traps
seeds as they exit the seed tube and firms them into the
bottom of the “V”.
Refer to Figure 116
The Firmer is provided with a preset tension which is
recommended for using the first year. The tension
screw can be tightened in subsequent years
according to your needs. Firmers should provide just
enough tension to push seeds to the bottom of the
trench.
Seed-Lok
Optional Seed-Lok
®
Seed Firmer Lock-Up
®
firming wheels provide additional
seed-to-soil contact. The wheels are spring loaded and
do not require adjusting. In some wet and sticky
conditions the wheels may accumulate soil. To avoid
problems associated with this, you can lock-up the
firmers.
Refer to Figure 117 (which depicts a row unit with
discs, side depth wheels/arms and press wheels
removed for illustrative purposes - removal is not
necessary for lock/unlock)
To lock up Seed-Lok
®
wheels:
1. Raise planter. Insert lift assist cylinder locks.
2. Lift Seed-Lok
free to rotate.
3. Rotate lever stop to side/idle position . Release
lock-up handle .
4. Push up on Seed-Lok
latches up .
To release a locked-up Seed-Lok
1. Insert a
2. Rotate the handle clockwise (handle arm up) until
handle . Alternatively, lift up on the wheel .
the Seed-Lok
®
lock-up handle until lever stop is
®
wheel until wheel arm
1
/4in tool drive tip in the tool hole of the
®
wheel releases at the latch point
®
:
and falls free.
®
Seed Firmer,
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3PYPA Table of Contents Index Adjustments
2
2
Figure 118
Seed-Lok
®
Lock-Up (older style)
22909
2
3
1
2
3
Higher press wheel down pressures reduce the down
force on the main row unit shank components, such as
the openers. High press wheel settings may require an
increase in overall row unit down force. See page 71.
Figure 119
Press Wheel Adjustments
25118
1
3
2
1
1
3. While holding the handle up, rotate the raised portion
of the lever stop under both sides of the handle
at the arm end. Remove the tool.
Seed-Lok
Optional Seed-Lok
seed-to-soil contact. The wheels are spring loaded and
do not require adjusting. In some wet and sticky
conditions the wheels may accumulate soil. To avoid
problems associated with this, you can lock-up the
firmers.
Refer to Figure 118
To lock up Seed-Lok
1. Raise planter. Insert lift assist cylinder locks.
2. Rotate Seed-Lok
3. Push up on Seed-Lok
®
Seed Firmer Lock-Up (older style)
®
firming wheels provide additional
®
wheels:
®
lock-up handle 90 degrees
down on top of row unit body.
®
wheel until wheel arm
latches up.
Press Wheel Adjustment
The press wheels close the furrow which gently presses
the soil over the seed to ensure good seed-to-soil
contact for even emergence.
To provide consistent seed firming, the press wheels are
free to move downward from their normal operating
position. This system maintains closing/pressing action
even if the row unit arm is lifted when the disks
encounter obstructions.
There are three adjustments available on the press
wheel assembly and a fourth option on press wheel
assemblies with cast wheels:
Refer to Figure 119
1. Down pressure (shown at maximum)
2. Wheel stagger (shown staggered)
3. Centering (see Figure 121 on page 87)
4. Cast Wheel Plow Angle (see Figure 122 on page 88)
Press Wheel Down Pressure
Handle sets down pressure, which may need
adjustment for different soil types and field conditions.
• Relax the handle forward (in the direction of travel)
for decreased down pressure.
• Pull the handle back for increased down pressure.
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3PYPA Table of Contents Index Adjustments
Figure 120
Press Wheel Force & Stagger
22907
1
8
7
6
5
3
4
2
456
878
2
Figure 121
Press Wheel Centering
(View from beneath opener)
25277
3
2
1
4
1234323
Press Wheel Stagger
The factory stagger setting has been found optimal for
residue flow. If your conditions appear to require even
press wheels, you might try one row before reconfiguring
the entire planter. To change the stagger:
Refer to Figure 120
1. Raise the planter and install the lift assist cylinder
locks. See “Lift Assist Cylinder Lock-Up” on
page 28.
2. Remove the bolt , nut and lock-washer for
the left press wheel .
3. Move the spacer and wheel to the forward of
the two mounting holes at .
4. Reinstall the bolt, lock washer and nut. Tighten.
Press Wheel Centering
If one press wheel is running in the seed trench, or the
wheels are not centered over the trench, the angle of
the press wheel assembly can be adjusted as follows:
Refer to Figure 121
1. Determine how far, and in which direction, the press
wheel assembly needs to move to center the wheels.
2. Raise planter and install lift assist cylinder locks. See
“Lift Assist Cylinder Lock-Up” on page 28.
3. Loosen the
Do not loosen the square-head bolts forward of the
hex-head bolts.
4. Turn the hex head cam under the forward hex
head jam bolt , and move the required amount.
5. Tighten both hex head bolts and .
3
/8inch hex-head bolts and .
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3PYPA Table of Contents Index Adjustments
Figure 122
Press Wheel Plow Angle Setting
34011
1
8
7
6
5
3
4
2
9
1239456
778
456
Press Wheel Assembly with Cast Wheels
Tight soil may require the need to drag/plow the trench
closed. The factory setting on press wheel assemblies
with cast wheels is 4 (maximum plow). If the conditions
in your region appear to require less plow, there are two
additional settings: 2 (less plow) and 0 (no plow). To
change the plow setting:
Refer to Figure 122
1. Raise planter and install lift assist cylinder locks. See
“Lift Assist Cylinder Lock-Up” on page 28.
2. Remove the bolt , lock-washer and spacers
for the press wheel .
3. Remove bolt , flat washer and hex nut for
casting .
4. Place a
of casting. Rotate casting until the desired angle
setting (4, 2 or 0) hole lines up with a hole on the
press wheel mount weldment (only one set of
holes will line up for each setting).
5. With holes lined up replace casting bolt and flat
washer . Secure with hex nut .
6. Reinstall press wheel.
If press wheel adjustments do not provide satisfactory
furrow closing, your conditions may require alternate
press wheels. A variety of wheel assemblies are
available. Consult your Great Plains dealer.
3
/4inch (19 mm) open end wrench on tab
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 88
Page 93
3PYPA Table of Contents Index Troubleshooting
For seed monitor issues, see also the DICKEY-john®
Planter/Drill Control User Manuals,
“TROUBLESHOOTING & ALARMS” section.
Suggested Furrow Check:
Plant a short distance and dig seeds, or run with the
closing wheels wired up to leave an open seed trench.
Based on seeds found, determine an average distance
between seeds. Compare the distance between seeds
to the seed spacing listed in the charts for your
population. This is listed as “inches per seed”.
Troubleshooting
Planting Rate Problems
When starting up with a new planter, a new crop or a
new population it is important to physically double check
what the monitor is reporting in the cab by digging seeds.
This is to verify that you are set up correctly to plant the
desired population. Do not rely solely on the population
reported by the DICKEY-john
Also during start up it is common to encounter alarms
and readouts on the DICKEY-john
seem to make sense. It is critical to troubleshoot these
alarms not only to make sure the planter drive is set
properly to hit the target population, but also to fix
incorrect entries in the DICKEY-john
eliminate nuisance alarms.
Before entering the troubleshooting charts to remedy a
monitor or population problem, it is helpful to use the
following flowchart to get a handle on what may be
wrong. The basis for finding what is wrong comes from
knowing exactly what the planter is actually doing in the
soil. Always dig or observe seed on the ground when
checking populations.
®
monitor.
®
console that don’t
®
monitor to
1. Is the spacing on the
ground correct?
2. Is the reported population
3
/8 the actual or is the
reported population too
high by a factor of 2?
No:
Yes: Go to step 2.
No:
Yes:
Check the ground drive transmission and range sprocket selections, or the
population settings on a hydraulic drive unit. See also “Population Too Low” or
“Population Too High” in the troubleshooting charts.
Go to step 3.
An incorrect row spacing value entered in the seed monitor can cause
this. Example: 15 inches instead of 30 inches. Correct the row spacing
error on the DICKEY-john
The system can also be off by a large factor if incorrect range sprockets
are installed. Check seed rate charts against range and transmission
sprockets on the planter.
3. Is the population on the
screen close to the target
population?
No:
Yes:
Check seed rate charts against transmission sprockets selected. See
“Population Too Low” or “Population Too High” in the troubleshooting charts.
If slightly under, see “Population Too Low” if slightly over, see “Population
Too High”.
®
console.
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Page 94
3PYPA Table of Contents Index Troubleshooting
Figure 123
Rear Cross-Section of Air-Pro Meter in Normal and Row-Failed Conditions
29743
Normal:
Filling
Normal:
Filled
Delivery Blockage or
Back-flow Starvation
Bridging:
Screen
Bridging:
Shutter
Seed pool at shutter
prevents back-flow of
meter pressurization
air, allowing seed to
flow from delivery
system, filling inlet to
top of air release
screen.
Once inlet is filled to
top of air release
screen, air flow from
the delivery system is
blocked. No further
seed arrives until
planting reduces the
backlog at the inlet.
No seed arriving from
manifold. Air
back-flow is
occurring. Causes may
include:
• low fan speed
• seed hose
blockage
• no seed available
• Y-tube closed
• meter never
primed
Oversize matter in
seed has caused a
bridge at the top of the
inlet. Air back-flow is
occurring.
When the bridge is
released, the seed pool
will be insufficient to
prevent back-flow.
A bridge at the shutter
is blocking flow.
Causes may include:
• oversize seed
• shutter setting too
low
• oversize matter in
seed
Actions: Actions: Actions: Actions: Actions:
No action required.
Continue Planting.
No action required.
Continue Planting.
1. Correct cause of
blockage.
2. Perform a one-row
seed pool recovery
(page 91).
3. Resume planting.
1. Close shutter.
2. Disconnect hose at
meter.
3. Tap on screen
cone and inspect.
4. Check seed pool
for foreign matter.
5. Perform a one-row
seed pool recovery
(page 91).
6. Resume planting.
1. If shutter was at
suggested
opening, increase
one notch.
2. Check seed pool
for foreign matter.
3. Resume planting.
1
1
1
Seed Pool Troubleshooting
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Page 95
3PYPA Table of Contents Index Troubleshooting
Figure 124
Seed Pool Recovery
29744
1
2
3
4
5
1
2
345
1
Figure 125
Magnehelic
®
Gauge
29842
Port ID for Troubleshooting:
Over-pressure relief port (with plug in place)
Low-pressure port (breather/atmospheric pressure)
High-pressure port (from manifold chamber)
Alternate high/low ports are plugged.
Winter testing/maintenance advisory:
Gauge readings may be inaccurate or sluggish below 20F
234
3
2
4
1
Seed Pool Recovery
When a meter has been starved of seed, back-flow of air
through the open shutter reduces delivery air flow. This
causes seed delivery to be slow. If you start or resume
planting with an empty seed pool, the delivery flow may
be too low to keep the meter supplied. The steps below
quickly “prime” the meter by rebuilding the seed pool.
Refer to Figure 124 (which depicts a recovery after an
incidence of bridging at air release screen)
1. Close the shutter . This stops the air back-flow.
2. Clear the bridge or blockage that caused the
meter to run empty.
3. With the fan running, listen for seed to fall into the
inlet.
4. Wait for seed fall to taper off and stop.
5. Open the shutter to the operating setting.
29744
6. Start or resume planting.
Magnehelica Gauge Troubleshooting
If the Magnehelic® gauge does not read zero with the fan
off, or the reading disagrees with the seed monitor
sensor reading by more than a few tenths of an inch of
water pressure, inspect the gauge, and re-zero as
needed.
Problem Cause Solution
Non-zero
with fan off
Gauge
reading
lower than
sensor
Check for chamber and breather line problems before
re-zero. Re-zero cannot accurately compensate for leaks
Zero drift
Relief port plug
missing/damaged
Breather line blocked
or kinked
Leak in sensing line Check line to chamber
Gauge damaged
Re-zero per
instructions below
Replace plug
Clear breather line
Check for loose cover,
damaged O-ring
and blockages.
Re-zero the Magnehelic
®
gauge on level ground with the
fan off, and if possible, under no-wind conditions. Turn
the set screw on the meter face until it reads zero from
the tractor driver’s viewing position.
a. Magnehelic® is a registered trademark of Dwyer Instruments, Inc.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 91
Page 96
3PYPA Table of Contents Index Troubleshooting
Population Troubleshooting Charts
Problem Cause Solution
Overall Low
Population
Incorrect seed rate Check seed rate charts
Empty pockets on disk (skips) due to insufficient
air pressure.
Empty pockets on disk (skips) due to sticky seed
treatments not allowing seed to rapidly fill the
pockets.
Empty pockets on disk (skips) due to rough field
conditions causing seeds to fall from the disks.
Empty pockets on disk (skips) due to seed pool
too low, and seeds are not filling every pocket on
the disk.
Empty pockets on disk (skips) due to disk speed
too high, and pockets are not filling.
Empty pockets on disk (skips) due to singulation
(4 tufted) brush too aggressive.
Empty pockets on disk (skips) due to seed too big
for pocket.
Seeds are not falling from disk, and get carried
past drop zone. Static electricity can cause small,
lightweight seeds to cling to the pocket and not
fall out.
Air pressure too low, false information driving the
DICKEY-john
®
software.
Methodically increase the controlled air to the meter. See
“Fan and Adjustment” on page 65.
Increase seed lubricant.
Decrease field speed or increase the air pressure in the
meter.
Open shutter one notch.
Decrease field speed or change to a higher cell count disc.
Check for matted, stuck together fibers. Wash, scrape clean,
or replace as needed.
Select the correct disk for the seed size.
The graphite component of Ezee Glide Plus addresses this
issue. Increase the amount of Easy Glide Plus and/or more
thoroughly mix the lubricant into the seed.
Compare the air pressure reported on the monitor console to
the mechanical gage. If they do not match:
• Inspect the
1
/4inch sample lines from the row units
up to the sensor chamber for leaks.
• Make sure all non-planting rows have blank disks.
• Re-zero the air pressure with the fan off.
Low fan speed: meter starvation due to meter
pressurization, leaving insufficient air for seed
delivery
Leaking meters in split row: meter starvation due
to meter pressurization leaving insufficient air for
seed delivery
Excess field speed Plant within speed ranges recommended in seed rate charts.
Increase fan speed.
Install blank disks and close shutters on unused rows.
Incorrect speed sensor constant.
Speed sensor angle.
Pass gaps too large
Actual field size is different Population may be correct, and calculations are not.
Low
Population,
One Section
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 92
Clutch slipping, due to contaminants in clutch, or
wear
Skipping chain from drive to section
Perform speed radar calibration per DICKEY-john® monitor
manual.
With planter lowered, check radar speed sensor angle per
DICKEY-john
Check marker extension (page 170).
For GPS, check planter size programmed.
Lock-up clutch (page 49) until it can be overhauled or
replaced
Check chain slack.
Replace worn chain.
®
recommendations.
Page 97
3PYPA Table of Contents Index Troubleshooting
Problem Cause Solution
Low
Population,
Single Row
Shutter opening too wide - interfering with meter
pressurization
Shutter opening too narrow - starving meter of
seed (low seed pool)
Y-tube partially or completely closed, reducing
bulk flow to meter or causing bridging
Meter starvation due to bridging at shutter
Meter starvation due to bridging above inlet,
caused by low seed delivery air flow
Meter starvation due to bridging above inlet,
caused by high levels of seed treatment
Skips due to low meter pressurization at one or
several rows
Skips due to skipping chain
Skips due to debris in disk pockets Remove rain covers. Inspect and clean out disks.
Row has blank disk installed Replace with seeding disk.
Seed sensor obscured Clean out seed tube (see page 105).
Seed tube plugged Raise planter, expose bottom of seed tube and clean out.
Adjust shutter to lower setting.
Adjust shutter to higher setting.
Open Y-tube for row
Readjust for shutter bridging (page 80).
If seed is treated, increase seed lubricant.
Clear bridge (page 80). Check that seed delivery system is
getting sufficient fan air, and that there are no other
obstructions upstream.
Clear bridge (page 80). Increase seed lubricant.
Check shutter setting.
Check for excess wear on seed drop brush.
Check for loose or leaking pressure hose.
Check for worn chain, worn idlers, and low chain slack
(page 121).
Problem Cause Solution
Overall High
Population
Incorrect seed rate Check seed rate charts
Two seeds per pocket on the disk
(doubles), due to excess meter
pressurization
Two seeds per pocket on the disk
(doubles), due to pockets too large for
the seed
Air meter pressure too high due to
pressure sensor not zeroed properly.
Air pressure too high, false information
driving the DICKEY-john
®
software.
Methodically decrease the controlled air to the meter. See “Fan and
Adjustment” on page 65.
Select a disk with smaller pockets.
Re-zero the air pressure with the fan off. Make sure the displayed
pressure reads 0.00.
Compare the air pressure reported on the monitor console to the
mechanical gage. If they do not match:
• Inspect the
1
/4inch sample lines from the row units up to
the sensor chamber for leaks.
• Make sure all non-planting rows have blank disks.
• Re-zero the air pressure with the fan off.
False alarms or actual seed rate errors
due to monitor setup with incorrect row
count, spacing or active rows
Incorrect cell count
Incorrect speed sensor constant
Doubles due to incorrect disk for crop or
seed size
When troubleshooting population issues, always first rule out seed
monitor setup. Review planter configuration and monitor setup.
Replace seed disks with correct disks, or reset rate for current disks
(if within range).
Perform speed calibration per DICKEY-john® monitor manual.
Use recommended disk for crop and seed size.
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Page 98
3PYPA Table of Contents Index Troubleshooting
Problem Cause Solution
Overall High
Population,
cont.
High
Population,
Single Row
Problem Cause Solution
Overall
Population
Alarms
Sticky seeds: excess seed treatment Increase seed lubricant.
Speed sensor angle.
Incorrect speed sensor constant
Overlapping passes
Actual field size is different Population may be correct, and calculations are not.
Excess meter pressurization causing
doubles
Worn seed-drop brush and/or strip
brushes allowing excess seed to pass
Incorrect seed disk with higher cell
count.
False alarms or actual rate errors due
to monitor setup with incorrect [active]
row count or spacing
Incorrect cell count
With planter lowered, check radar speed sensor angle per
DICKEY-john
Perform speed calibration per DICKEY-john® monitor manual.
Check marker extension (page 170).
For GPS, check planter size programmed.
Check shutter.
Replace worn brushes.
Install correct disk.
When troubleshooting population issues, always first rule out seed
monitor setup. Review planter configuration and monitor setup.
Replace seed disks with correct disks, or reset rate for current disks
(if within range).
®
recommendations.
Mismatch
Between
Reported and
Furrow
Population
Excessive Seed
Cracking
Skips and Bare
Spots After
Turns
Improper gap on speed sensor.
Incorrect speed sensor constant
Small seeds (example milo) are not
reliably sensed in the seed tube
Seed tube sensor is not counting all
seeds
Seeds / revolution value in the
DICKEY-john
the disk cell count.
Incorrect seed pocket size Use correct disk for seed.
Damaged, old or dried-out seed Use new seed.
Unclean seed Use clean seed.
Fan was turned off at turns
Insufficient hydraulic flow to keep fan
running at speed required to maintain
meter pressurization
®
setup does not match
Check speed sensor on planter for 1/16inch to 1/8inch
(1.6 to 3.2 mm) gap from wheel. Improper gap can cause erratic
speed signal causing monitor to falsely report improper planting rate.
Perform speed calibration per DICKEY-john® monitor manual.
Run with rain covers in place to minimize ambient light intrusion. Use
the population adjustment factor in the Dickey John monitor system
to compensate for missed seeds. For example, change the
DICKEY-john
140% as needed. Remember to set this back to 100% for large
seeds.
Clean the seed tube of graphite and dust buildup with long narrow
seed tube brush. Replace sensors that malfunction.
Correct the value in a setup screen or install the correct cell count
disc.
Leave fan running. Meter Pressurization must be maintained during
turns, or seed will fall out of disk pockets.
Check tractor capability against requirements (page 141).
If sufficient:
®
Population Adjustment values from 100% to 130% or
• Fold markers before engaging lift.
• Use a less aggressive lift rate.
• Monitor fan rpm during end-of-pass operations.
Unable to
adjust air
pressure low
enough.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 94
Lower limit reached in DICKEY-john®
software.
Fan speed too high, vane rotated to
maximum.
At User Level 2, reduce the controlled air lower limit in the software.
Reduce the fan speed.
Page 99
3PYPA Table of Contents Index Troubleshooting
Problem Cause Solution
Seed too
shallow or
scattered on
Bottom of seed tube damaged.
Row not penetrating in tire tracks. Increase down force on parallel arm springs.
Replace seed tube. Avoid setting planter straight down. Use forward
motion when lowering.
ground from a
single row
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.
Chain has jumped.
System is
unable to
automatically
control air
Signal from air pressure sensor lost.
(failed sensor or wiring)
meter pressure.
Problem Cause Solution
Single row doesn’t fill
or keep up with other
rows.
Both rows on one meter
outlet low or not keeping
up with other rows.
Multiple rows fail for lack
of seed.
Single or multiple hoses
plugging just ahead of
airbox.
All rows fail.
Re-time meters from the population based timing chart.
Check sprockets and chain for excessive wear or rusty stuck links.
Air pressure may be controlled manually, consult DICKEY-john®
Planter/Drill Control manual, User Level 2/3.
Y tube is bent/angled off feed pipe.
Drop tube to meter is too long,
causing seed to pool and plug
hose or Y-tube.
Air release vent plugged
Blockage in air slot in top of airbox.
Bad hose routing between delivery
hose and airbox on wing.
Fan speed too high/too low. Check/adjust fan speed.
Out of seed. Add seed.
Fan speed too high/too low. Check/adjust fan speed.
Possible air leak.
Lack of seed. Fan speed too high. Adjust fan speed.
Loosen pipe and spin so the bend is straight down
and Y-tube is not pointing to front or rear of air pipe.
Shorten hose (with planter raised, but row units
lowered, to ensure hose is not too short).
Remove the seed delivery hose and clamp from the
two halves of the screen cone and remove the air
release screen for inspection. Wash or blow out the
screen as needed.
Clear by using a long skinny tool and taking hose off
through hose outlet.
It may be necessary to take top off airbox or use side
access doors to clear junk from slot.
Correct hose routing.
Check for air leak downstream between box and top
of meter.
Extremely high populations may require slightly
reduced field speed.
1, 2, 3, or more outlets fail.
Outlets can be side-by-side
or random. Plugging may
Foreign matter in seed chamber in
bottom of airbox.
Clean out seed chamber.
also move from one outlet
to another.
Little or no seed to a lot
Seed treatment sticky.
of rows with heavily
treated seed.
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 95
Treatment mixed unevenly and
plugging outlets.
Add Ezee Glide Plus to seed to dry out seed
treatment.
Clean out seed. Re-mix.
Page 100
3PYPA Table of Contents Index Troubleshooting
Problem Cause Solution
Population
Alarms
Excess Seed
Remaining
Seed
Consumption Too
High
Rows Not Planted
Uneven seed
spacing
Planter does not
fold or unfold
fully
See “Population Troubleshooting Charts” on page 92.
See “Population Troubleshooting Charts” on page 92.
Field size different. After ruling out population problems, re-check geography.
Excessive gaps between planter
passes.
See “Population Troubleshooting Charts” on page 92.
Field size different. After ruling out population problems, re-check geography.
Excessive overlap.
Irregular shaped field.
If not detected by seed monitor, check
for plugged row-unit seed tube
See “Population Troubleshooting Charts” on page 92.
Hydraulic meter drive motor rpm too
low for reliable control by proportional
valve.
Excessive field speed. Reduce field speed.
Unclean seed. Use clean seed.
Damaged seed tube Inspect; repair or replace.
Seed-Lok® plugging. Lock up Seed-Lok®, page 86.
Row-unit discs not turning.
Worn/rusted sprockets and/or chain
idler or bearings.
Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out.
Lack of proper seed lubrication on
seed.
Fold cylinders out of phase Rephase cylinders, refer to page 115
Air in lines Bleed fold circuit, refer to page 115
Adjust marker, page 170.
Adjust marker, page 170.
Lift planter, expose bottom of seed tube and clean out.
1. Increase field speed.
2. Use a seed wheel with lower cell count.
3. Install a low speed kit (page 132).
See “Row-unit discs not turning freely” in this Troubleshooting
chart.
Check and replace any worn/rusted sprockets or chain idlers.
See “Seed Lubricant” on page 134.
Uneven seed
depth
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 96
Excessive field speed. Reduce field speed.
Planting conditions too wet. Wait until drier weather.
Incorrect coulter depth setting. See coulter manual or set unit mounted coulter.
Excessive or improper row unit down
pressure spring setting.
Damaged seed tubes. Check seed tubes for damage.
Seed-Lok® building up with dirt. Lock up Seed-Lok®, page 86.
Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 71.
Rough planting conditions. Rework the field.
Seed firmer not in place and set to
correct tension.
See 25 series row-units, page 71.
See “Seed Firmer Adjustments” on page 85.
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