GREAT PLAINS YP4425A User manual

Manufacturing, Inc.
www.greatplainsmfg.com
© Copyright 2009 Printed 2018-07-30 401-805M
EN
Table of Contents Index
Table of Contents Index
ORIGINAL INSTRUCTIONS
Operator Manual
YP4425A
44 Foot 3-Section Yield-Pro®Planter
with Air-Pro®Seed Meters
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, and
may show the similar Model YP40 or YP40A, where the immediate topic applies
to all.
34086

Machine Identification
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.
Dealer Contact Information
Model Number
Serial Number
Machine Height
Machine Length
Machine Width
Machine Weight
Year of Construction
Delivery Date
First Operation
Accessories
Name:
Street:
City/State:
Telephone:
Email:
Dealer’s Customer
No.:
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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© Copyright 2009 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.
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.
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.
Brand and Product Names that appear and are owned by others are trademarks of their respective owners.
Printed in the United States of America
Table of Contents
Important Safety Information.................................................1
Safety Decals ....................................................................6
Introduction...........................................................................12
Models Covered ..............................................................12
Description of Unit ...........................................................12
Intended Usage ........................................................12
Document Family .....................................................12
Using This Manual...........................................................12
Definitions.................................................................12
Owner Assistance............................................................13
Further Assistance...........................................................13
Preparation and Setup .........................................................14
Initial Setup......................................................................14
Post-Delivery/Seasonal Setup.........................................14
Pre-Planting Setup ..........................................................14
Hitching Tractor to Planter...............................................15
Hydraulic Hose Hookup............................................15
If Weight Transfer is Installed...................................15
Electrical Hookup.............................................................17
Hitching with 3-Point.................................................17
Hitching with Hydraulic Tongue (Option)..................18
Raising/Lowering Tongue.........................................18
Parking Stands ................................................................19
Tank Cart Hitching....................................................19
Making Fertilizer Connections ..................................20
Heights and Leveling .......................................................20
Set Tongue Height ...................................................20
Marker Setup ...................................................................21
Fertilizer Drive Lock Up ...................................................22
Operating Instructions .........................................................23
Pre-Start Checklist...........................................................23
Fold/Unfold Lock Overview..............................................23
Unfolding the YP4425A Planter.......................................24
Raising/Lowering Planter.................................................26
Raising Planter .........................................................27
Lowering Planter ......................................................27
Lift Cylinder Lock-Up ................................................28
Re-Phasing Lift System............................................28
Local Float on Hydraulic Tongue..............................28
Folding the YP4425A Planter ..........................................29
Re-phasing Fold System ..........................................31
Transporting the Planter ..................................................32
Typical YP4425A Planter Weights ...........................33
Transport Checklist ..................................................33
Loading Materials ............................................................34
Walkboard and Ladder.............................................34
Auxiliary Hydraulics..................................................35
82 Bushel Hopper Operation....................................36
150 Bushel Hopper Operation..................................37
Changing the Seed Box or Hopper ..........................38
Air System Operation ......................................................40
Air System Overview................................................41
Airbox Operation ......................................................44
Weight Transfer Operation (Option) ................................44
Monitor Operation............................................................45
3-Section Electric Clutch Operation ................................45
Electric Clutch Lock-Up............................................46
Swath Command™ Clutch Operation .............................46
Air-Pro®Meter Operation ................................................47
Meter Operation .......................................................47
Fertilizer Tanks (Option)...........................................48
Trailer Operations............................................................49
Field Set-Up Checklists ...................................................50
Caster Locks - Field Operations...............................51
Field Operation................................................................52
Marker Unfolding .............................................................53
Marker Unfold (one side)..........................................53
Row Marker Operation .............................................54
Folding the Markers .................................................54
Unusual Marker Operations .....................................54
Monitor Operation............................................................54
Planting ...........................................................................54
Checking Planting Rate...................................................54
Short-Term Parking .........................................................55
Long-Term Storage .........................................................56
Storage: Fertilizer Option .........................................56
Adjustments..........................................................................57
Setting Material Rates .....................................................58
Planting Rate............................................................58
Fertilizer Rate...........................................................58
Height Switch Adjustment ...............................................59
Marker Adjustments ........................................................60
Marker Disc Adjustment ...........................................60
Fan and Adjustment ........................................................61
Fine-Tuning Meter Pressurization ............................63
Seed Delivery Fan Adjustments...............................63
Liquid Fertilizer Adjustments ...........................................64
Ground Drive Pump .................................................65
Fertilizer Relief Valve ...............................................66
Fertilizer Orifice Plates .............................................66

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25 Series Row Unit Adjustments .....................................67
Row Unit Down Pressure .........................................68
Unit-Mount Row Cleaner Adjustments .....................70
Coulter Adjustments .................................................71
Row-Unit Opener Disc Adjustments.........................73
Side Gauge Wheel Adjustment ................................74
Seed Meter Setup and Adjustment ..........................76
Air-Pro®Meter Disc Installation................................78
Seed Firmer Adjustments.........................................80
Press Wheel Adjustment ..........................................81
Troubleshooting ...................................................................83
Planting Rate Problems...................................................83
Seed Pool Troubleshooting .............................................84
Seed Pool Recovery.................................................85
Population Troubleshooting Charts .................................86
Maintenance and Lubrication ..............................................94
Maintenance ....................................................................94
Material Clean-Out ..........................................................95
Air Box Clean-Out ....................................................95
Air System Clean-Out...............................................95
Meter Clean-Out.......................................................96
Meter Brush Maintenance ...............................................98
Meter Brush Replacement........................................99
Seed Disc Maintenance .........................................100
Air Box Residue Clean-Out ...........................................101
Hydraulic Maintenance ..................................................102
Hydraulic Drive Maintenance .................................102
Bleeding Hydraulics.......................................................103
Marker Maintenance......................................................105
Marker Cylinder Bleeding .......................................105
Marker Shear Bolt Replacement ............................105
Marker Grease Seal Cap........................................105
Wing Leveling ................................................................106
Chain Maintenance........................................................109
Meter Drive Chain ..................................................109
Spreaders and Scrapers ...............................................110
Row-Unit Side Wheels ..................................................110
Seed Flap Replacement................................................111
Fertilizer System Maintenance ......................................112
Liquid Fertilizer Strainer .........................................112
Lubrication.....................................................................113
Seed Lubricants ............................................................123
Options ................................................................................124
Hydraulic Tongue ..........................................................124
Markers .........................................................................125
Fertilizer Systems..........................................................126
Pintle Trailer Hitch Weldment........................................130
82 or 150 Bu. Seed Hopper...........................................131
Rigid Row Cleaners ...............................................133
Unit-Mounted Disc Coulters ...................................134
Gauge Wheel Scrapers..........................................134
Inside Disc Scrapers ..............................................135
Clean-Out Container ..............................................136
Seed Tube Brush ...................................................136
Seed Firmers..........................................................136
Row Unit Press Wheels .........................................136
Appendix A - Reference Information ................................137
Specifications and Capacities .......................................137
Tire Information .............................................................137
Torque Values Chart .....................................................138
Hydraulic Diagrams .......................................................139
Chain Routing................................................................146
Seed Hose Routing .......................................................150
Appendix B - Initial and Option Setup ..............................152
Pre-Delivery Items.........................................................152
Initial Setup....................................................................153
Marker Extension ...................................................154
Hopper Level Sensor Installation ...........................155
Radar Calibration ...................................................155
Appendix C - Option Installation.......................................156

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YP4425A Table of Contents Index 1
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 6,
thoroughly.
Read all instructions noted on the decals.
Keep decals clean. Replace damaged, faded and illegible
decals.

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YP4425A Table of Contents Index Important Safety Information 2
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.
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.
Confined Space
With grain or fertilizer present, and once used for
hazardous fertilizers, or seeds with hazardous
treatments, your hoppers may become
“permit-required confined spaces”
under applicable statutes, regulations, insurance rules or
business policy.
A full, encrusted or bridged grain hopper can be a rapid
suffocation hazard.
Even when empty, hazardous fumes or low oxygen may be
present. You can be quickly overcome even with the
hopper lid open.
Do not enter a hopper for material loading, material
unloading, hopper cleaning or meter maintenance.
Clean hopper by power washing from outside the hopper
top.
Remove large obstructions, perform meter maintenance,
and perform sensor maintenance by removing meters from
bottom of empty hopper.
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Use A Safety Chain
(Optional hydraulic hitch only. 3-Point has no chain.)
Use a safety chain to help control drawn machinery
should it separate from tractor draw-bar.
Use a chain with a strength rating equal to or greater than
the gross weight of towed machinery.
Attach chain to tractor draw-bar support or other
specified anchor location. Allow only enough slack in
chain to permit turning.
Replace chain if any links or end fittings are broken,
stretched or damaged.
Do not use safety chain for towing.
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the skin,
causing serious injury.
Avoid the hazard by relieving pressure before
disconnecting 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.
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

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YP4425A Table of Contents Index Important Safety Information 4
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.
Transport Machinery Safely
•Maximum transport speed for implement is 20 mph
(32 km/h).
•Maximum speed in turns is 13 mph (22 km/h).
•Maximum speed when backing is 3 mph (5 km/h).
•Some rough terrains require a slower speed. Sudden
braking can cause a towed load to swerve and upset.
•Do not transport the cart in a train with material in
the tank.
•Do not back the planter if PFC cart is attached.
Do not exceed 20 mph (32 km/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 “Appendix A - Reference
Information” on page 137.
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
remove the key.
Secure planter using blocks and supports provided.
Detach and store planter in an area where children
normally do not play.
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22
5

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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.

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YP4425A Table of Contents Index Important Safety Information 6
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 Reflectors
838-266C
On rear face of axle (below Daytime reflectors);
two total
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.
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