Page 1
Table of Contents Index
29711
Operator Manual
YP2425A
60 Foot Yield-Pro
with Air-Pro
®
Planter
®
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 2019-06-11 401-626M
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
YP2425A Cover Index Table of Contents
Table of Contents
Important Safety Information.................................................1
Safety Decals ....................................................................6
Introduction...........................................................................13
Description of Unit ...........................................................13
Intended Usage ........................................................13
Models Covered ..............................................................13
Document Family .....................................................13
Using This Manual...........................................................13
Definitions.................................................................13
Owner Assistance............................................................14
Further Assistance...........................................................14
Preparation and Setup .........................................................15
Post-Delivery/Seasonal Setup.........................................15
Pre-Planting Setup ..........................................................15
Hitching Tractor to Planter...............................................16
Hydraulic Hose Hookup............................................16
If Weight Transfer is Installed...................................16
Color Coded Hydraulic Hoses..................................17
Protecting Fan Hydraulic Motor Seals......................17
Electrical Hookup .....................................................18
Hitching with 3-Point.................................................18
Hitching with Hydraulic Tongue (Option)..................19
Store Main Parking Stand ........................................20
Raising/Lowering Tongue.........................................20
Tank Cart Hitching...........................................................21
Making Fertilizer Connections ..................................21
Heights and Leveling .......................................................22
Set Tongue Height ...................................................22
Checking Planter Leveling Side to Side ...................22
Center Section Level Check.....................................23
Wing Leveling ..................................................................23
Wing Leveling, Inboard End .....................................23
Wing Leveling, Outboard End ..................................23
Lock Up Fertilizer Drive ...................................................24
Operating Instructions .........................................................25
Pre-Start Checklist...........................................................25
Fold/Unfold Lock Overview..............................................25
Unfolding the YP2425A Planter.......................................26
Raising/Lowering Planter.................................................28
Raising Planter.........................................................29
Lowering Planter ......................................................29
Folding the YP2425A Planter ..........................................30
Rephasing Fold System ...........................................32
Lift Cylinder Lock-Up ................................................32
Rephasing Lift System .............................................32
Transporting the Planter ..................................................33
Transport Checklist ..................................................34
Loading Materials............................................................35
82 Bushel Hopper Operation....................................35
Adding Seed to 82 bu. Hopper.................................35
Changing the Seed Box or 82 bu. Hopper ...............36
Auxiliary Hydraulics .........................................................38
Operating Auxiliary Hydraulics .................................38
Marker Operation ............................................................39
Marker Unfold (one side)..........................................40
Row Marker Operation .............................................40
Folding the Markers .................................................40
Unusual Marker Operations .....................................40
Electric Clutch Operation.................................................41
Clutch Switch Coverage...........................................41
Electric Clutch Lock-Up............................................41
Swath Command™ Clutch Operation .............................42
Air System Operation ......................................................43
Air System Overview................................................44
Y-Tubes...........................................................................46
Weight Transfer Operation (Option)................................47
Monitor Operation............................................................47
Fertilizer Systems Overview............................................48
Trailer Operations............................................................51
Fertilizer Systems Operation ...........................................51
Hydraulic Fertilizer Pump .........................................51
Ground Drive Pump Operation.................................52
AccuShot System (Option)..............................................52
Field Set-Up Checklist.....................................................52
Field Operation................................................................55
Short-Term Parking .........................................................56
Long-Term Storage .........................................................57
Storage: Fertilizer Option .........................................57
Adjustments..........................................................................58
Setting Material Rates.....................................................59
Planting Rate............................................................59
Hydraulic Pump Fertilizer Rate ................................59
Ground Drive Pump Fertilizer Rate ..........................59
Gauge/Transport Wheel Adjustments .............................60
Marker Adjustments ........................................................60
Marker Disk Adjustment ...........................................61
Marker Extension .....................................................61
Marker Gauge Wheel Adjustment............................62
Marker Chain Length Adjustment.............................62
Dual Marker Speed Adjustment ...............................63
Height Switch Adjustment ...............................................64
Fan and Meter Pressurization Adjustment ......................65
© Copyright 2009, 2010, 2011, 2012, 2013, 2014, 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 | 401-626M | 2019-06-11 Cover Index iii
Page 4
YP2425A Cover Index Table of Contents
Fine-Tuning Meter Pressurization ............................67
Seed Delivery Fan Adjustments ...............................67
Frame-Mounted Row Accessories ..................................68
Terra-Tine™ Adjustments ........................................68
Frame-Mounted Coulter Adjustments ......................69
Vantage I Fertilizer Adjustments ..............................69
25 Series Row Unit Adjustments .....................................70
Row Unit Down Pressure .........................................71
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 ...................................................................88
Planting Rate Problems...................................................88
Seed Pool Troubleshooting .............................................89
Seed Pool Recovery.................................................90
Population Troubleshooting Charts .................................91
Maintenance and Lubrication..............................................98
Maintenance ....................................................................98
Material Clean-Out ..........................................................99
Air Box Clean-Out ....................................................99
Air System Clean-Out...............................................99
Meter Clean-Out.....................................................100
Meter Brush Maintenance .............................................102
Meter Brush Replacement......................................103
Seed Disk Maintenance .........................................104
Air Box Residue Clean-Out ...........................................105
Hydraulic Maintenance ..................................................106
Hydraulic Drive Maintenance .................................106
Bleeding Hydraulics................................................107
Marker Maintenance......................................................108
Marker Bleeding .....................................................108
Marker Shear Bolt Replacement ............................109
Marker Grease Seal Cap........................................109
Wing Alignment ......................................................110
Chain Maintenance........................................................111
Meter Drive Chain..........................................................111
Disc Spreaders and Scrapers........................................112
25 Series Row-Unit Side Wheels ...........................112
Fertilizer System Maintenance ......................................113
Liquid Fertilizer Strainer .........................................113
Seed Flap Replacement (S/N B1002E+).......................114
Seed Flap Replacement (S/N B1001E-)........................114
Lubrication .....................................................................115
Seed Lubricants.............................................................124
Options ................................................................................125
Appendix A - Reference Information ................................139
Specifications and Capacities........................................139
Specifications/Capacities, North America ..............139
...............................................................................139
Specifications/Capacities, Metric Model.................140
Tire Inflation Chart .........................................................140
Hydraulic Diagrams .......................................................141
Chain Routing................................................................148
Seed Hose Routing .......................................................151
Torque Values Chart .....................................................154
Appendix B - Initial Setup..................................................155
Seed Monitor Console Installation.................................155
Radar Calibration ..........................................................155
Appendix C - Option Installation.......................................157
Appendix R - Row-Pro™....................................................159
Row-Pro™ Troubleshooting..........................................166
Great Plains | 401-626M | 2019-06-11 Cover Index iv
Page 5
YP2425A 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 6,
thoroughly.
Read all instructions noted on the decals.
Keep decals clean. Replace damaged, faded and illegible
decals.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 1
Page 6
YP2425A Table of Contents Index Important Safety Information
PTO-Specific Hazards
Applies only to optional PTO pump.
Even if you are experienced in PTO operations, review
the “Using PTO Safely” topic on page 2 of the PTO
manual (411-015M). Topics in that manual dealing with
PTO hazards include this PTO alert symbol.
PTO hazards include:
Entanglement:
resulting in abrasions, lacerations, crushing,
dismemberment or death. Loose clothing, cuffs, frays,
laces, coattails, drawstrings, hair or scarves are taken up
by a PTO faster than you can react, and with
overpowering torque.
Flailing machinery:
resulting from an unsecured torque arm, resulting in
serious injury or death.
High pressure fluid sprays:
due to hydraulic hose failure, resulting from PTO shaft
over-speed or damaged hoses.
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.
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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 2
Page 7
YP2425A Table of Contents Index Important Safety Information
Wear Protective Equipment
Great Plains advises all users of chemical pesticides or
herbicides to use the following personal safety
equipment.
Waterproof, wide-brimmed hat
Waterproof apron.
Face shield, goggles or full face respirator.
Goggles with side shields or a full face respirator is
required if handling or applying dusts, wettable powders,
or granules or if being exposed to spray mist.
Cartridge-type respirator approved for pesticide vapors
unless label specifies another type of respirator.
Waterproof, unlined gloves. Neoprene gloves are
recommended.
Cloth coveralls/outer clothing changed daily; waterproof
items if there is a chance of becoming wet with spray
Waterproof boots or foot coverings
Do not wear contaminated clothing. Wash protective
clothing and equipment with soap and water after each
use. Personal clothing must be laundered separately from
household articles.
Clothing contaminated with certain pesticides must be
destroyed according to state and local regulations. Read
chemical label for specific instructions.
Wear clothing and equipment appropriate for the job.
Avoid loose-fitting clothing.
Prolonged exposure to loud noise can cause hearing
impairment or loss. Wear suitable hearing protection such
as earmuffs or earplugs.
Avoid wearing entertainment headphones while operating
machinery. Operating equipment safely requires the full
attention of the operator.
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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 3
Page 8
YP2425A Table of Contents Index Important Safety Information
32
32
22
5
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
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 cart in train with material in the tank.
• Do not back planter if PFC cart is attached.
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” on
page 139.
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 key7.
Secure planter using blocks and supports provided.
Detach and store planter in an area where children
normally do not play.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 4
Page 9
YP2425A Table of Contents Index Important Safety Information
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.
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 dismount a moving tractor. Dismounting a moving
tractor could cause serious injury or death.
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 | 401-626M | 2019-06-11 Table of Contents Index 5
Page 10
YP2425A 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.
25211
29710
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;
1 total
Red Reflectors
838-266C
On the back of seed box support structure each end
(above wheels, outside Daytime reflectors);
two total
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 6
Page 11
YP2425A Table of Contents Index Important Safety Information
29710
29710
29710
Daytime Reflectors
838-267C
On the back of seed box support structure each end
(above wheels, inside of red reflectors);
two total
Amber Reflectors
838-265C
On the front of the center section front lower tool bars,
on the rear of the wing tool bars, and
on the sides of the seed box frame;
six total.
Danger: Crushing Hazard
818-590C
Top center of 3-point hitch; one total
(not present with hydraulic tongue option)
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 7
Page 12
YP2425A Table of Contents Index Important Safety Information
29710
848-512C
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
29710
8
58
-0
30
C
All drivelin
e guards,
tractor
a
n
d
equi
pm
ent
shie
ld
s
in
pla
ce
PTO pump assembly securely
attached with torque arm and clamp
bolts properly torqued
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
DANGER
858-029C
CAPACITY = 13.5 U.S. GALS
USE ANY HIGH QUALITY MINE
RAL
BASED
HYDRAULIC FLUID WITH A VISCOSITY RATING
OF 10W-30. OIL MUST BE CLEAN AND FREE
FROM DIRT OR CONT
A
MINANT PARTICLES TO
PREVENT DAMAGE TO PUMP AND MOTOR.
REPLACE FILTER ELEMENT AFTER EVERY
150 OPERATING HOURS OR 2
YEARS SERV
IC
E.
LEVEL TOOLBAR BEFORE CHEKING OIL LEVEL
OIL FILL LINE
85
8-
00
4
C
Rea
d O
w
ner
’s Manual BEFORE operating machine.
Keep tractor at IDLING SPEED and slowly engage PTO
to prevent damage to Hydrau
l
ic Motor
Keep Radiator clean and free of foreig
n matter to
prevent overh
eating.
Do NOT operate with hydraulic oil at or above 180°F
.
HOT FLUID HAZARD
WARNING
818
-2
4
0
C
Re
v.
A
To avoid Injury or
Machine Damage:
·Operate only with
1000 rpm PTO
CAUTION
34843
858-030C
All driveline guards, tractor
and equipment shields in place
PTO pump assembly securely
attached with torque arm and clamp
bolts properly torqued
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
DANGER
Danger: Read Manual
848-512C
On tongue at hitch;
1 total
Danger: Electrocution Hazard
838-599C
One each side or marker upright arm, each side;
four total
Danger: Rotating Driveline
858-030C (Option)
On front face of hydraulic reservoir;
one total
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 8
Page 13
YP2425A Table of Contents Index Important Safety Information
29710
29710
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
29710
Warning: Pinch/Crush
818-045C
On forward transport wheel arms, each side
On rear axle by seed hopper, each side;
five total
Warning: Speed
818-188C
On front of center section, one total
Warning: High Pressure Fluid Hazard
818-339C
On side of tongue; one total
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 9
Page 14
YP2425A Table of Contents Index Important Safety Information
29710
858
030
C
All d
r
iv
eli
n
e
gu
a
rds,
tra
c
t
or
and equipment shields in place
PTO pum
p
assembly securely
attached with torqu
e
arm a
nd
c
l
amp
bolts properly
torqu
e
d
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
DANGER
8
5
8-0
2
9C
CAPACITY = 13.5 U.S. GALS
USE ANY
HIGH QUALITY MINERAL BASED
HYDRAULIC FLUID WITH A VISCOSI
TY R
A
T
ING
OF 10W-30. OIL MUST BE CLEAN AND FREE
FROM DIRT OR CONTAMINA
NT
P
ARTICLES TO
PREVENT DAMAGE TO PUMP AND MOTOR.
REPLACE FILTER ELEM
ENT AFT
E
R
E
VERY
150 OPERATING HOURS OR 2 YEARS SERVICE.
LEVEL TOOLB
AR BEFORE
CHEKING OIL L
E
VEL
OIL FILL LINE
85
8-
0
0
4C
Read Owner’s Manual BE
F
O
R
E o
peratin
g
mac
h
ine.
Ke
e
p
tr
a
ct
or at ID
LING
SPE
E
D a
n
d slo
w
ly engage
PT
O
to prevent da
ma
ge to
Hydr
a
ulic M
o
tor
Keep Radiator
c
lean and free of for
e
ig
n
matter to
prevent overheating.
D
o N
O
T oper
a
t
e
with hyd
r
auli
c
oil at or ab
o
ve 180°F.
HOT FLUID HAZARD
WARNING
81
8
-240C Rev. A
To avoid Injury or
Machine Damage:
·Operate only with
1000 rpm PTO
CAUTION
34843
858-004C
Read Owner’s Manual BEFORE operating machine.
Keep tractor at IDLING SPEED and slowly engage PTO
to prevent damage to Hydraulic Motor
Keep Radiator clean and free of foreign matter to
prevent overheating.
Do NOT operate with hydraulic oil at or above 180°F.
HOT FLUID HAZARD
WARNING
8
5
8
03
0
C
All driveline guards, tractor
an
d
equipment shields
in
pla
ce
PTO pump as
sembly
securely
attached with torque arm and clamp
bolts properly torqued
ROTATING DRIVELINE -
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT-
DANGER
85
80
2
9
C
CAPACITY = 13.5 U.S. GALS
U
S
E ANY
HIGH QUALITY MINERAL BASED
H
Y
DRA
UL
IC FLUID WITH A
V
IS
COSITY R
A
TING
OF 10
W-30. OIL MUST BE CLEAN
AND FREE
F
ROM DIRT OR CONTAMINANT PARTICLES TO
PREVENT DAMAGE TO PUMP AND MOTOR.
REPLACE FILTER ELEMENT AFTER EVERY
150 OPERATING HOURS OR 2 YEARS SERVICE.
LE
VEL
TOOLB
AR BEFORE CHEK
IN
G
OIL LEVEL
OIL FILL LINE
8
5
8
0
0
4
C
Read Owner’s Manual BEFORE opera
t
i
n
g machine.
Ke
e
p tractor
at
IDLING
SPEED and slowly engage PTO
to prevent dam
a
ge
to
Hyd
r
aulic Mo
tor
Keep Radiator clean and free of foreign matter to
prevent overh
eating.
Do NOT operate with hydr
aulic oil at
or above 1
8
0°F.
HOT FLUID HAZARD
WARNING
8
18
-240C Rev. A
To avoid Injury or
Machine Damage:
·Operate only with
1000 rpm PTO
CAUTION
34843
818-240C Rev. A
To avoid Injury or
Machine Damage:
·Operate only with
1000 rpm PTO
CAUTION
29710
Warning: Markers: Pinch/Crush
818-682C
One each side or marker upright arm, each side;
four total
Warning: Hot Fluid
858-004C (Option)
On front face of hydraulic reservoir;
one total
Caution: 1000 rpm PTO
818-240C (Option)
On front face of hydraulic reservoir;
one total
Caution: Read Operator Manual
818-587C
CAUTION
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
moving chains and sprockets.
Never ride on machine.
Always lower or properly support machine
BEFORE servicing.
Escaping hydraulic fluid can cause serious
injury.
Review safety instructions with all operators
annually.
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING:
818-587C Rev. B
On center tool bar; one total
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 10
Page 15
YP2425A Table of Contents Index Important Safety Information
29796
29710
29710
Caution: Transport Locks
818-351C
Hitch tongue,
Rock shaft face, forward center transport wheels,
front of wing casters;
five total
Caution: Tires Not A Step
818-398C
One front face each wing gauge wheel,
One each side front center axle;
6 total
Caution: Pressure and Torque
838-426C (S/N B1113G-)
On outside rim each transport tire;
10 total
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 11
Page 16
YP2425A Table of Contents Index Important Safety Information
29710
Caution: Pressure and Torque
858-773C (S/N B1114G+)
CAUTION
To Avoid Injury or Machine Damage from Improper Tire
Inflation or Torquing of Wheel Bolts:
Maximum inflation pressure of tires is 73 psi.
Torque wheel bolts to 170 lb-ft.
On outside rim each transport tire;
10 total
858-773C
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 12
Page 17
YP2425A Table of Contents Index Introduction
U
D
F
B
L
R
L
R
U
D
F
B
L
R
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 60 Foot Yield-Pro
with Air-Pro
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.
®
Meters (YP2425A) has been designed with
®
Planter
Description of Unit
The YP2425A Planter is a pull-type implement for use in
conventional till, minimum-till, or light no-till conditions.
The YP2425A Planter accepts optional unit mounted and
frame-mounted row accessories. Coulters make it
suitable for light to moderate no-till conditions only. The
YP2425A Planter is outfitted with 25 Series,
side-depth-control row-units and Air-Pro
The YP2425A Planter folds for transport.
®
seed meters.
Intended Usage
Use the YP2425A Planter to seed production-agriculture
crops only. Do not modify the planter for use with
attachments other than Great Plains options and
accessories specified for use with the YP2425A Planter.
Models Covered
YP2425A-2430 24 Row, 30 Inch Spacing
YP2425A-2470 24 Row, 70 cm Spacing
YP2425A-3620 36 Row, 20 Inch Spacing
YP2425A-4715 47 Row, 15 Inch Spacing
YP2425A-48TR 48 Row (24 Twin), 30 Inch Spacing
Document Family
401-626M Owner’s Manual (this document)
401-626B Seed Rate Charts
401-626P Parts Manual
411-015M PTO Operate/Install manual
DICKEY-john
11001-1662 Planter/Drill Control, User Level 1
11001-1501A Planter/Drill Control, User Level 2&3
110011518 YP2425A-48TR Quick-Start Guide
110011519 YP2425A-4715 Quick-Start Guide
110011520 YP2425A-2430 Quick-Start Guide
110011521 YP2425A-3620 Quick-Start Guide
110011522 YP2425A-2470 QSG
®
IntelliAg® Manuals:
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.
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.
A crucial point of information related to the current 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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 13
Page 18
YP2425A Table of Contents Index Introduction
Figure 1
Serial Number Plate
26032
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 1
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, as
shown.
Record your YP2425A Planter model and serial number
here for quick reference:
Model Number:__________________________
Serial Number: __________________________
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
Or go to www.greatplainsag.com and follow the contact
information at the bottom of your screen for our service
department.
1525 E. North St.
P.O. Box 5060
Salina, KS 67402-5060
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 14
Page 19
YP2425A Table of Contents Index Preparation and Setup
Preparation and Setup
This section helps you prepare your tractor and
YP2425A Planter for use, and covers tasks that need to
be done seasonally, or when the tractor/planter
configuration changes.
Before using the YP2425A Planter in the field, you must
hitch the planter to a suitable tractor, inspect systems,
level the planter. Before using the planter for the first
time, and periodically thereafter, certain adjustments and
calibrations are required.
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 155).
• Bleed hydraulic system (page 107).
• Wing leveling and alignment (page 110).
• Marker setup (page 61)
• Radar calibration (page 155).
• 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 115.
Check that all safety decals and reflectors are
correctly located and legible. Replace if damaged.
See “Safety Decals” on page 6.
Inflate tires to pressure recommended and tighten
wheel bolts as specified. See “Specifications and
Capacities” on page 139.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 15
Page 20
YP2425A Table of Contents Index Preparation and Setup
Figure 2
Weight Transfer System
36421
Hitching Tractor to Planter
Crushing Hazard:
Do not stand or place any part of your body 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 park brake before attaching cables and hoses.
Hydraulic Hose Hookup
High Pressure Fluid Hazard:
Relieve pressure before disconnecting hydraulic lines.
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. 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. If an accident occurs, seek immediate
medical attention from a physician familiar with this type of
injury.
If Weight Transfer is Installed
If the optional weight transfer system is not installed, or a
PTO pump is installed, continue at “Color Coded
Hydraulic Hoses” on page 17.
The weight transfer cylinders must be free to flex during
all planter movements where the system is not in active
use.
To allow cylinder flex:
NOTICE
DO NOT MOVE PLANTER FOLDED
OR UNFOLDED WITHOUT CONNECTING
FAN CASE DRAIN AND LOW PRESSURE
RETURN TO THE TRACTOR OR
INSTALLING WEIGHT TRANSFER
SHIPPING LINKS. FAILURE TO DO
SO CAN RESULT IN DAMAGE TO
WEIGHT TRANSFER CIRCUIT.
858-295C
• connect at least the fan case drain and fan return
lines to suitable receptacles (see page 17), or
• install the shipping links (see page 156).
Machine Damage Risk:
Do not move the planter with a hydraulically locked weight
transfer system. Relieve the system or install shipping links.
If the cylinders are not free to flex, oil loss will result from even
minor movement flexing.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 16
Page 21
YP2425A Table of Contents Index Preparation and Setup
Figure 3
Color Coded Hose Handles
31733
Color Hydraulic Function
Gray Wing Fold / Marker Fold / Auxiliary
Blue Lift / (and Hitch if hydraulic tongue)
Black Fan
Yell ow Hydraulic Drive
Figure 4
Older Style Hoses w/Label
27270
Color Hydraulic Function
White Wing Fold / Marker Fold / Auxiliary
Blue Lift / (and Hitch if hydraulic tongue)
Orange Fan
Yell ow Hydraulic Drive
Color Coded Hydraulic Hoses
Refer to Figure 3
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.
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.
If the PTO pump option is installed, there are no hoses at
the hitch for fan, hydraulic meter drive, or optional
hydraulic fertilizer pump.
Current Style Color Coded Hose Handles
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.
Older Style Hoses with Color Ties
Refer to Figure 4
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.
Protecting Fan Hydraulic Motor Seals
Motor Seal Damage Risk:
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.
Hydraulic Motor Performance Risk:
DO NOT hook case drain line to a “power-beyond port”
Low Pressure (Case) Drain Connection
1. Attach case drain hose to low pressure drain
connection.
Case drain hose has the smaller
and small, flat-face, connector.
2. Connect low pressure motor return hose to low
3. Connect hydraulic hoses to tractor remotes.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 17
pressure return connector. It is distinguished by a
large (1.06 inch / 2.7 cm diameter) quick coupler.
1
/4inch I.D. hose
Page 22
YP2425A Table of Contents Index Preparation and Setup
Figure 5
Connector Identification
25236
25237
34694
1
2
3
1
2
3
Figure 6
3-Point Hitch Stands Stored
29732
4
3
3
4
Electrical Hookup
Refer to Figure 5 (which depicts the North American
lighting connector , seed monitor connector and
a DC power connector for Row-Pro™ or Swath
Command™)
Your YP2425A Planter is equipped with standard and
optional devices that require separate electrical
connections.Make sure tractor is shut down with
accessory power off before making connections.
These connections may be made in any order.
The switch control module 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.
Hitching with 3-Point
Refer to Figure 6
4. Connect your tractor 3-point to the planter 3-point
hitch. If using quick hitch be sure planter locks into
hitch securely.
5. Raise tractor 3-point just enough to relieve pressure
off of the parking stand.
6. Store 3-point stands . There are two methods:
a. Remove lower pins . Swing stand under hitch.
Reinsert pin beneath stand at inner hole.
b. Remove both pins. Invert stand. Re-pin.
Load Sway Hazard:
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.
7. Remove and store main tongue parking stand. See
“Store Main Parking Stand” on page 20.
8. Adjust the top link of a 3-point long enough so the
ball swivel does not bottom out when fully raised.
9. Secure hoses so they do not get caught in ball
swivel. Failure to do so could cause hose to be
crushed requiring hose replacement.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 18
Page 23
YP2425A Table of Contents Index Preparation and Setup
Figure 7
Hitching with Hydraulic Tongue
(Bypass Valve Closed)
28477
1
OPEN
CLOSED
1
2
2
Figure 8
Clutch Folding Module (Hitch)
26033
1
Hitching with Hydraulic Tongue (Option)
Refer to Figure 7
10. Move the tractor to near hitching position.
11. Connect the hydraulic hoses for the tongue circuit.
This needs to be done before hitching in order to
raise and lower the tongue. See “Hydraulic Hose
Hookup” on page 16. Allow slack for hitch
movements. Close the tongue cylinder bypass valve.
12. Make electrical connections for at least the planter
control circuit (necessary to control planter hydraulic
systems). See page 18.
13. Check that hitch local bypass valve is closed.
Refer to Figure 8
14. Set the cab Clutch Folding Module Lift/Hitch
switch to Hitch.
15. Retract the Hitch/Lift circuit to set the tongue height
to clear the draw-bar. Back the tractor into alignment
and pin the draw-bar.
16. Connect safety chain to a suitable anchor point on
the tractor.
17. Extend the Hitch/Lift circuit to raise the hydraulic
tongue just enough to relieve pressure from the
parking stand.
18. Remove and store main tongue parking stand. See
“Store Main Parking Stand” on page 20.
Local Float on Hydraulic Tongue
Refer to Figure 7
The hydraulic tongue must be in Float during planter
moves.
If it is necessary to move the planter without first
connecting it to a tractor that has a float-capable circuit
for the hydraulic tongue, open the bypass valve on the
tongue cylinder. This provides local floating capability at
the tongue.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 19
Page 24
YP2425A Table of Contents Index Preparation and Setup
Figure 9
Main Parking Stand
26110
2
1
3
123
Figure 10
Parking Stand Stored
29242
3
Store Main Parking Stand
Refer to Figure 9 and Figure 10
1. Remove the lower pin and the upper pin
holding the parking stand .
2. Move the stand from under the tongue to an inverted
position in the bracket on the left side on the tongue.
Raising/Lowering Tongue
In addition to hitching, tongue raising and lowering is
required during fold and unfold to engage and disengage
the wing locks.
With the standard 3-point hitch, the planter tongue is
raised and lowered by raising and lowering the 3-point.
With the optional hydraulic tongue, the planter tongue is
raised by extending the hitch cylinder, and lowered by
retracting the hitch cylinder.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 20
Page 25
YP2425A Table of Contents Index Preparation and Setup
Figure 11
Fertilizer Cart Connections
27372
L
C
R
S
G
L
CRS
G
L
C
R
G
S
Tank Cart Hitching
If using a fertilizer cart, consult the cart manual for:
• hitching cart tongue to planter
• connecting pump control electronics to planter
• connecting fertilizer feed hoses to planter
Complete the tractor-planter hookup before making any
tank cart connections.
Material Loss Risk:
Open hose and inlet valves when ready to begin planting.
Close them when not in use. Damage to hoses when not
applying material can result in rapid tank depletion.
Fertilizer Connection Types
Typ e
2
3
1-section, planter manifold and pump:
Inlet only (bypass is local on SML cart; a
user-provisioned cart may use the boom gauge line
connection)
3-section, cart manifold and pump:
Left, Center, Right inlets & Gauge line
Description
Making Fertilizer Connections
YP2425A Planter with Type 2 and Type 3 Manifolds, & Ground Drive Pump(s)
Planter Inlet
Left Type 3 Center Type 3 Right Type 3 Type 2
YP2425A Planter with Type 3 Manifold (only)
Planter Inlet
Left Type 3 Center Type 3 Right Type 3
YP2425A Planter with Type 2 (only) boom, SML cart with on-board hydraulic pump
Gauge Line
Gauge Line
a
a
Planter Inlet
Type 2
a. Gauge Line is supplied with PFC1600 or PFC2000 tank cart
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 21
Page 26
YP2425A Table of Contents Index Preparation and Setup
Figure 12
Initial Tongue Height
25316
41.5in
(105.4cm)
Level frame in planting conditions.
Failure to do so may result in implement not
producing desired results.
Figure 13
Wing/Center Level Check
26117
2 1
Heights 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. If you are having problems with uneven
depth, check planter levelness and follow these
procedures.
1. Before making any adjustments be sure the lift
cylinders are re-phased and operating properly. If
not, See “Rephasing Lift System” on page 32
2. Complete “Bleeding Hydraulics” on page 107.
3. Unfold the planter fully (page 26).
Set Tongue Height
Planter must be unfolded for this procedure.
Refer to Figure 12
Set the initial tongue height, using 3-point or hydraulic
tongue cylinder. Distance is measured at top of tongue to
ground level.
• For standard 3-point hitch:
Set depth stop to capture this working height.
If desired height cannot be attained with normal
range of hitch, swivel coupler weldment may be
relocated in tongue bolt holes.
Tractor 3-point control must be in Depth Control
mode, and not Draft Control mode.
• For hydraulic tongue:
Note the scale reading on the tongue for this height.
[Re]set the tongue height to this value when
planting.
Checking Planter Leveling Side to Side
The planter is designed to operate with all sections of the
main tool bar nominally 26 in (66 cm) above the planting
surface. The height of the center section is not routinely
adjustable. Set planting depth with row unit adjustments.
When lowering the planter for the first time on the
planting ground:
1. Completely lower the main tool bar. If necessary, first
lift off transport locks, remove and stow locks.
2. Set hitch to planting height.
3. Pull forward a short distance.
Height Mis-adjustment Risk:
Fully lower planter to field position (with openers into ground)
and set hitch height before making side-to-side adjustments.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 22
Page 27
YP2425A Table of Contents Index Preparation and Setup
Any unevenness in ground that tilts the wings or center
section causes the inner wing ends to move up or down
slightly with respect to the center frame.
1
Figure 14
Wing End Level Check
26118
3
2
Figure 15
Leveling Wing
26036
2
1
3
121
Center Section Level Check
Vertical height and side-to-side level of the center section
is set at the factory and cannot be field-adjusted. It does
need to be verified before checking/adjusting the wings.
Soil accumulation on the wheels, for example, can cause
the center section to tilt.
Refer to Figure 13 on page 22
4. Measure the elevation of both left and right sides of
the planter center section, at the ends of the center
section tool bar (location in Figure 13).
Wing Leveling
Wing Leveling, Inboard End
Wing leveling check/adjustment is required prior to first
use of the YP2425A Planter, and periodically thereafter,
for example, if soil conditions change dramatically.
Before performing this operation:
• Check center section height and level (page 22).
• Row unit coulter/planting depths, and row unit
down-pressures must all be equal.
5. Measure the height of the inboard end of each wing,
near the wing flex pivot (location in Figure 13).
6. Compare this height to that of the center section
obtained at step 4 on page 23.
7. If the heights differ by more than 1in., check them
again after leveling the wing ends. If they still differ,
the thrust washers in the wing pivots may be worn
and in need of replacement.
Wing Leveling, Outboard End
Refer to Figure 14 and Figure 15
1. Measure from the bottom of the wing tool bar to the
ground at the outer end of each wing (location in
Figure 14).
2. Compare to the measurement at the outer end of the
center tool bar, at the wing pivot location. All
measurements should be identical, and close to
26 in. (66cm).
3. If measurements do not match, loosen upper gauge
wheel lock nut , and adjust eyebolt link length with
adjuster nut .
4. If adjustments are needed on either side, recheck
the other side after each adjustment, and readjust it
as needed.
5. Once level, tighten the lock nut .
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 23
Page 28
YP2425A Table of Contents Index Preparation and Setup
Figure 16
Locked Up Fertilizer Drive
32364
5
7
6
4
457
6
Lock Up Fertilizer Drive
YP2425A serial number B1029G+
Loss of Control and Sharp Object/Crushing Hazards:
Do not lift or lower wheel by spoke or rim; use handle only.
Keep feet out from under wheel. 90 pounds (41 kg) force is
required to lift wheel. If you lose your grip before pinning, or
after unpinning, the arm snaps down rapidly. The traction
teeth and the force of the wheel impact can inflict serious
injury.
The liquid fertilizer option uses a piston pump driven by a
ground contact wheel. When not using the fertilizer drive,
preserve the pump by locking up the ground wheel. On
older models remove the chain.
Do not operate planter pump when not applying
material.
Refer to Figure 16
For YP2425A planters:
1. Remove clevis pin from storage hole .
2. Release the lock arm , lift handle to lift ground
wheel up to position it in-between lock arm.
3. Secure with pin clevis and cotter pin.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 24
Page 29
YP2425A Table of Contents Index Operating Instructions
High Pressure Fluid Hazard:
Relieve pressure before disconnecting 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 17
Fold/Unfold/Lift Locking Features
29793
2
1
3
5
4
1
2
2
3
3
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
YP2425A Planter to the field.
Carefully read “Important Safety Information” on
page 1.
Lubricate planter as indicated under “Lubrication”
on page 115.
Check all tires for proper inflation. See
“Specifications and Capacities” on page 139.
Check all bolts, pins, and fasteners. Torque as
shown in “Torque Values Chart” on page 154.
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.
Install seed disks appropriate for crop. To change
disks, see “Air-Pro
page 81.
® Meter Disk Installation
” on
Fold/Unfold Lock Overview
The YP2425A planter includes five sets of locks for the
frame, wings and casters:
1. Wing locks: Hooks on the tongue engage locks on
the wings to prevent unfolding in transport. Tongue
must be raised to engage/release. See page 27.
2. Lift cylinder lock channels: These are
operator-installed on a raised plater, these prevent
lowering in transport or when parked. See page 32.
3. Fold cylinder and Caster swing arm cylinder lock
valves: Switch-controlled solenoid valves prevent
motion of the fold cylinders and caster swing arm
cylinders, in transport and field. See page 147.
4. Tongue lock: This engages automatically at unfold,
5. Caster pivot locks: operator-engaged after unfold,
and lock the tongue/draw bar geometry for field
operations. See page 27.
these prevent caster swiveling in the field, which aids
in tracking across hillsides. See page 26.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 25
Page 30
YP2425A Table of Contents Index Operating Instructions
Figure 18
Clutch Folding Module
26111
2
1
3
4
5
Figure 19
Caster Unlocked
29306
6
7
1235674
Unfolding the YP2425A Planter
The distance between the tractor and the seed structure
decreases by 12 feet (3.7 m) during unfolding. Planter,
tractor, or both will move during this operation.
Crushing, Pinch-Point and Overhead Hazards:
To prevent serious injury or death:
Fold only on hard level ground. Allow ample room.
If it is desired that the tractor not move, make sure tractor
is in Park and/or has parking brakes set, otherwise the
telescoping movement of the planter is likely to result in
tractor movement.
Do not allow anyone to be on or near the planter during
unfolding.
Stay clear of the wing sweep arcs. The sweep arcs of the
wings have numerous pinch and crush points in the
mechanism. Coulters and row openers are sharp.
Allow no one near planter. The seed structure usually
moves forward during unfolding.
Do not unfold with planter lowered, or machine damage
will result.
Unfold only with markers resting in transport cradles.
Unfold only if hydraulics are bled free of air and fully
charged with hydraulic oil.
1. Move to level ground.
Refer to Figure 18
2. On the Clutch Folding Module (CFM), set the
following switches to OFF (down):
MASTER switch in the CLUTCH cluster , and
Fert.Pump .
3. If the folded planter is lowered, raise mainframe (See
“Raising/Lowering Planter” on page 28).
4. If equipped with hydraulic hitch, the CFM Lift/Hitch
switch must be set to Hitch.
Refer to Figure 19
5. At each wing caster, check that lock control
handles and indicators are in the ROAD
position, allowing the casters to swivel. If they are
not, set handle to ROAD position and fully raise and
lower planter to release load on lock plates to allow
them to come open.
Refer to Figure 18
6. Set CFM Marker/Fold switch to Fold. LED above
switch blinks continuously.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 26
Page 31
YP2425A Table of Contents Index Operating Instructions
Figure 20
Unfold: Wings Locked
26037
8
8
8
Figure 21
Planter Unfolding
26112
9
8
Figure 22
Tongue Lock Engaged
26041
8
Unfolding, Continued …
7. Raise tractor 3-point hitch or extend planter hydraulic
tongue until tongue wing locks rise and
disengage.
Machine Damage Risk:
Raise hitch before unfolding. If hitch is not raised, wing locks
remain in transport hooks. Wings cannot unfold, and machine
damage is possible.
8. Activate (normally Retract) tractor hydraulic circuit to
unfold wings.
Refer to Figure 22
9. Operation is complete when tongue lock engages.
Machine Damage Risk:
Do not operate planter when unfolded unless tongue lock is
engaged. When unlocked, the pull bar system experiences
excess loads. The openers may be damaged by not tracking
straight forward.
10. When fully unfolded, set Marker/Fold hydraulic
circuit to Neutral.
11. Disable lock valve solenoids by setting CFM
Marker/Fold switch to Marker.
Set switch to “Marker” even if markers are not
installed.
12. For imminent lowered operations, remove lift
cylinder locks (see “Lift Cylinder Lock-Up” on
page 32).
Refer to Figure 19
13. For operations across hillsides, engage caster locks.
Set wire handles to FIELD. Casters will lock into
straight trailing position during operation.
14. Set hitch height to planting position
(“Raising/Lowering Tongue” on page 20).
Machine Damage Risk:
Unfold and fold slowly. Adjust hydraulic flow to take a
minimum of 60 seconds to unfold or fold. Wings are massive,
and damage can occur if they reach the end of travel at high
speed. At lower speeds you also have time to check for hose
pinching or kinking, as well as react to anything unexpected in
the sweep arc.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 27
Page 32
YP2425A Table of Contents Index Operating Instructions
1
Figure 23
Clutch Folding Module
26113
Figure 24
Planter Raised
26114
Figure 25
Planter Lowered
26115
Figure 26
Local Float on Hydraulic Tongue
26152
1
Raising/Lowering Planter
Refer to Figure 23
Planter raising/lowering relies on the four lift cylinders at
the mainframe and wing end gauge wheels.
The planter must be raised for folding and unfolding.
The planter will not fully lower if transport locks are
installed. See “Lift Cylinder Lock-Up” on page 32.
When unfolded, if one or both markers are extended,
they may drag or shove if left extended during raise or
lower operations. To avoid this, fold markers prior to
raise or lower.
Machine Damage Risk (Hydraulic Hitch Only):
Do not lower planter while folded without using the special
procedure below (this is a hydraulic hitch restriction - planter
may be lowered while folded with standard 3-point hitch).
Machine Damage Risk:
Do not lower while any planter folding operations are
underway or partially complete, with either hitch.
Machine Damage Risk:
Always raise the planter for any reverse/backing operations.
Local Float on Hydraulic Tongue
A hydraulic hitch planter may be raised or lowered while
folded if the hitch has the local float valve.
Crushing Hazard:
Tongue or planter components may drop suddenly when circuit
is floated. Before raising or lowering, set CFM Lift/Hitch
switch to Hitch and set tractor circuit to Float. If tractor is not
available, use bypass valve on hitch.
Stand clear and open it slowly.
1. Float hitch circuit before lowering while folded.
Float hitch circuit before raising while folded.
2. Set CFM Lift/Hitch switch to Lift for raising/lowering.
3. Close bypass valve before switching to Hitch. Hitch
circuit operation has no effect with bypass valve
open.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 28
Page 33
YP2425A Table of Contents Index Operating Instructions
1
Figure 27
CFM: Raising Planter
26113
Pinch/Crush Risk:
Keep all personnel clear of center section and seed cart while
raising tool bar. The wheels move inward.
1
1
Figure 28
CFM: Lowering Planter
26113
Crushing Risk:
Keep all personnel clear of center section and seed cart while
lowering tool bar. The wheels move outward.
1
Raising Planter
Refer to Figure 27
1. If the planter has hydraulic hitch, set the Lift/Hitch
switch to LIFT.
If the planter has the standard 3-point hitch, this
switch has no function. The hydraulic circuit is always
in Lift (Raise/Lower) mode.
2. Move the cab lever to Extend the circuit for Lift/Hitch.
3. Move lever to Neutral (not Float) to hold at lift.
Machine Damage Risk:
On tractors with electronic timer controls for hydraulic
circuits, lift timers must be set to no more than 2 seconds
longer than needed to fully raise planter.
Do Not Set for Continuous Mode.
For transport, maintenance or storage, install lift cylinder
locks. See “Lift Cylinder Lock-Up” on page 32.
Lowering Planter
Refer to Figure 28
1. If lift cylinder locks are installed, first fully raise the
planter, and remove the locks. See “Raising
Planter” on page 29 and “Lift Cylinder Lock-Up” on
page 32.
2. If equipped with hydraulic hitch, set the Lift/Hitch
switch to LIFT. On 3-point hitch, this switch has no
function and the circuit is in Lift mode at all times.
3. Move the cab lever to Retract the circuit for Lift/Hitch.
When fully lowered, return lever to neutral.
Machine Damage Risk (Hydraulic Hitch Only):
Never lower planter while fully folded, if it is equipped with
the hydraulic tongue hitch, or machine damage can occur
unless a special procedure is followed (see page 28). A planter
with a 3-point hitch may be lowered while folded.
Machine Damage Risk:
Never lower planter while partially unfolded (with either
hitch). Wing row units can strike main transport wheels.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 29
Page 34
YP2425A Table of Contents Index Operating Instructions
Figure 29
CFM: Wing Folding
26033
1
2
Figure 30
Fold Commencing
26116
1
2
Folding the YP2425A Planter
Fold the YP2425A Planter for moves between fields and
over public roads, and for storage. The distance between
the tractor and the seed structure increases by
12 feet (3.7 m) during unfolding. Planter, tractor, or both
will move during this operation.
Pinch Point and Crushing Hazard.:
To prevent serious injury or death:
Fold only on hard level ground. Allow ample room.
If it is desired that the tractor not move during folding,
make sure tractor is in Park and/or has parking brakes
set, otherwise the telescoping movement of the planter is
likely to result in tractor movement.
Do not allow anyone to be on or near the planter during
folding.
Stay clear of the wing sweep arcs. The sweep arcs of the
wings have numerous pinch and crush points in the
mechanism. Coulters and row openers are sharp.
Allow no one behind the planter. The seed structure moves
backward during folding.
Do not fold with planter lowered, or machine damage will
result.
Fold only with markers resting in transport cradles.
Fold only if hydraulics are bled free of air and fully
charged with hydraulic oil.
1. Move to level ground. Put tractor in Park. Set parking
brake.
Refer to Figure 23
2. On the cab Clutch Folding Module (CFM), set the
following switches to OFF (down):
MASTER switch in the CLUTCH cluster, and
Fert.Pump .
3. Raise planter mainframe (see “Raising/Lowering
Planter” on page 28). Do not raise (hydraulic) hitch
at this point.
4. Install lift cylinder locks (see “Lift Cylinder Lock-Up”
on page 32).
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 30
Page 35
YP2425A Table of Contents Index Operating Instructions
Caster locks must be disengaged for transport.
Figure 31
Caster Unlocked
29306
4
5
7
6
4545673
Figure 32
CFM: Wing Folding
26033
3
8
9
Figure 33
Wings Locked
26037
8
9
9
8
3
Folding, Continued …
Refer to Figure 31
If caster locks are engaged (wire handle and
indicator in FIELD position), they must be released
before folding.
5. At each wing caster, move the lock control handle
to the ROAD position.
6. If the indicator end of the lock does not
immediately snap up from FIELD to ROAD, some
pivot tension is holding the pawl end of the lock in
the plate detent . Raise and lower planter fully to
release load on lock plates to allow them to come
open. Move the planter forward or back a short
distance until both locks unlock.
Refer to Figure 32
7. Set CFM Marker/Fold switch to Fold. LED above
switch blinks continuously.
8. Activate (normally Extend) tractor Marker/Fold
hydraulic circuit to fold wings. Sequence begins with
releasing of tongue latch (Refer to Figure 22 on
page 27). Before folding completes …
9. Raise planter tongue (“Raising/Lowering Tongue”
on page 20). This must be done before folding
completes.
Refer to Figure 33
If tongue is not raised prior to folding complete, wing
locks will be above transport hooks and unable to
secure wings to tongue.
If this happens, partially unfold planter, raise tongue,
and refold.
10. When fully folded, lower tongue so that wing locks
engage transport hooks .
11. Set CFM Marker/Fold switch to Marker.
Set switch to Marker even if markers are not installed.
This switch position sets the fold and caster swing
arm cylinder solenoid valves off, providing additional
protection against unfolding.
12. Set Marker/Fold circuit lever to Neutral.
13. 3-point: lower hitch completely
Hydraulic tongue: Set hitch circuit to Float (not
Neutral).
Transport Hazard:
Wing locks must be engaged for safe transport, and planter
tongue must be lowered to keep wings locked.
Hydraulic tongue, if installed, must be in Float.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 31
Page 36
YP2425A Table of Contents Index Operating Instructions
Figure 34
Lift Cylinder Locks Installed
26038
29283
1
1
2
2
1
2
Rephasing Fold System
In typical use during a single planting operation, it is
normal for the fold cylinders to get slightly out of phase,
resulting in uneven folding and unfolding of the YP2425A
Planter.
Every few planting days, rephase the cylinders with this
procedure:
1. Raise, unfold and fold the planter completely, and
hold the fold hydraulic lever or switch in Extend for
several seconds after the planter reaches full folding,
or until all cylinders are fully extended.
2. When all cylinders are fully extended, reverse
(Retract) the control to unfold and return to planting.
Lift Cylinder Lock-Up
When moving the raised planter more than a short
distance, or over any public road, or when performing
adjustments or maintenance, do not rely solely on the lift
cylinders to keep the mainframe raised.
Install transport locks.
Refer to Figure 34
1. If planter is folded, confirm hitch is in Float.
If planter is unfolded, hitch may be in any
configuration.
2. Raise the planter mainframe. See
“Raising/Lowering Planter” on page 28.
3. Remove the transport locks from their storage
positions . Install the transport locks on the
cylinder rods , securing them with the same pins
used for storage.
4. Lower the lift cylinders onto the locks.
Rephasing Lift System
In typical use during a single planting operation, it is
normal for the lift cylinders to get slightly out of phase,
resulting in uneven raising and lowering of the YP2425A
Planter.
Every 8- to 10 passes, or if lifting is uneven, rephase the
cylinders with this procedure:
1. Raise the planter completely, and hold the hydraulic
lever or switch in Extend for several seconds after
the planter reaches full elevation, or until all cylinders
are fully extended.
2. When all cylinders are fully extended, momentarily
reverse (Retract) the control to lower the planter
3
/8inch (13 mm).
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 32
Page 37
YP2425A Table of Contents Index Operating Instructions
26142
32
22
5
Transporting the Planter
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 50,000 pounds (22 780kg),
depending on configuration and seed load. A tank cart hitched
to the planter (“in train”) can add another 5000 pounds
(2268 kg) empty. The tractor unit MUST be rated for the load.
If the tractor is not rated for at least 50,000 pounds, calculate
the actual weight of the planter and cart.
Do not tow if planter exceeds the load rating of the vehicle.
Loss of Control Hazard:
A tank cart in train must be EMPTY. A full PFC2000 tank cart
weighs nearly 30,000 pounds (13 608 kg), and, when hitched to
the planter, represents an unsafe highway load regardless of
the rating of the towing vehicle. If a cart must be transported
loaded, tow it separately.
Loss of Control Hazard:
The CFM switch must be set to Hitch, and the hydraulic circuit
must be in FLOAT during transport. Failure to do this may
result in hydraulic system damage, transport hooks
unlatching, and major planter/tractor damage.
Braking and Loss of Control Hazard:
Do not exceed 20 mph (32 km/h) when driving straight.
The planter is extremely heavy, and can cause “over-steer”
with most tractors. Do not exceed 13 mph (22 km/h) in turns.
Never exceed 3 mph (5 km/h) in reverse.
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.
Reduction of Control Risk:
Do not transport cart in train with material in the tank.
Reduction of Control Risk:
Never back up with the planter lowered or with a pintle hitch
fertilizer tank hitched to the planter.
Never back up the planter if PFC cart is attached.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 33
Page 38
YP2425A Table of Contents Index Operating Instructions
Transport Checklist
If heading to the field, before departing, ensure that
opener depth, seed rate and fertilizer rate have been
determined, or that the necessary data is with you.
Plan the route. If towing a cart hitched to the planter,
plan the route so that no reverse movements will be
necessary. Avoid steep hills. Keep clearances in
mind. Folded, your planter may be nearly
15 feet (4.6 m) wide and 13 feet (4 m) high.
Close slide gates on hoppers or seed boxes.
Hitch.
Make both electrical and hydraulic connections. See
“Hitching Tractor to Planter” on page 16. For
hydraulic hitch, check that safety chain is anchored.
If markers are unfolded, fold them.
See “Folding the Markers” on page 40.
Raise planter.
See “Raising/Lowering Planter” on page 28
Install lock-up channels on lift cylinders.
See “Lift Cylinder Lock-Up” on page 32.
If planter wings are unfolded, fold them.
See “Folding the YP2425A Planter” on page 30.
Make sure wing locks are engaged.
Make sure caster locks are disengaged. See
“Folding the YP2425A Planter” on page 30.
3-point hitch:
Lower hitch fully to ensure wings remain locked.
Hydraulic hitch:
Confirm CFM set to Hitch and hitch circuit in Float.
Check all lights. Always have lights on for highway
operation.
Comply with all national, regional and local safety
laws when traveling on public roads.
Travel with caution.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 34
Page 39
YP2425A Table of Contents Index Operating Instructions
System Plugging Risk:
Do not use liquid seed treatments.
Figure 35
Hopper Capacities (bu.)
22958
Approximate capacity of bulk seed hopper,
in bushels, at 10 inch increments.
Loading Materials
For trailing tank cart, see the Operator manual for the
cart.
82 Bushel Hopper Operation
Tipping Hazard:
Load an 82 bu. hopper only when mounted on the cart. A full
hopper can weigh over 5000 lbs (2268 kg), which is above the
lifting and balance capability of most tractors and farm
forklifts.
Fork lift height capability required is:
Planter lowered: 4 feet 6
Planter raised: 6 feet 9
Adding Seed to 82 bu. Hopper
1. When using new meters for the first time, or at the
start of each season, measure out approximately
4 gallons (15 liters) of seed into a pail. Add
3
/8cup (120 ml) of Ezee Glide Plus to the pail.
Mix and pour into air box before mounting hopper.
2. If no seed containers are present, or the previous
operation was using a bulk seed boxes, mount the
empty 82 bu. hoppers on the cart. See “Changing
the Seed Box or 82 bu. Hopper” on page 36.
3. Put tractor in Park.
4. Turn off seed box fan.
5. Open slide gates at base of hoppers. Open lids.
6. Measure the lubricant required, and if loading seed
by bag, determine the amount of lubricant per bag.
5
/8inches (139 cm)
7
/8inches (208 cm).
If loading with a hydraulic auger, see “Auxiliary
Hydraulics” on page 38.
Entanglement, Chemical and Falling Hazards:
Observe all safety precautions for material handling and use
of loading equipment (particularly augers).
Auger height capability required is:
PROBOX
9 feet 1
PROBOX
11 feet 4
82 bu. hopper, planter lowered:
9feet.4
82 bu. hopper, planter raised:
11 feet 7
7. Add seed, mixing in lubricant continuously or per
®
, planter lowered:
3
/8in. (2.78 m)
®
, planter raised:
3
/4in. (3.47 m)
1
/4inches (2.85 m)
3
/8inches (3.54 m).
bag.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 35
Page 40
YP2425A Table of Contents Index Operating Instructions
Figure 36
Seed Box Lock Pins
26046
1
1
Figure 37
Removing/Mounting Hopper
26121
1
Changing the Seed Box or 82 bu. Hopper
The Planter 60ft Yield-Pro® Planter accepts Great
Plains 82 bu. hoppers or bulk seed boxes that meet
the Pioneer
Hoppers for the YP2425A Planter are provisioned as
a pair. To provide convenient walkboard access to the
lid, the lid hinge is on the left for the left hopper, and on
the right for the right hopper. They are otherwise
identical.
Tipping Hazard:
Place or remove an 82 bu. hopper only when empty. A full
hopper can weigh over 5,000 lbs, which is above the lifting
and balance capability of most tractors and farm forklifts.
1. Move the planter to an area of level ground and
sufficient room to maneuver a tractor or fork-loader.
2. Unhitch tank cart if present.
3. Raise the planter. This causes the rear transport
wheels to move forward, providing closer access for
the lifter.
4. Back up the planter about three feet. This causes the
rear transport wheels to caster forward, further
reducing the reach required for lifting.
5. Turn off the seed box fan.
6. Put the towing tractor in Park. Shut off engine.
Remove key.
7. Close the slide gates at the base of the hoppers or
seed boxes.
Refer to Figure 36
8. Remove the two pins , one back left, one back
right, used to retain the seed box or hopper. Remove
these pins even if no container is presently mounted.
Refer to Figure 37
9. Align the lifting forks with the slots in the rear of the
seed box or hopper. Slowly drive forward until the
forks are completely under the container.
10. Slowly lift the seed container above the bracket, and
back away from the planter.
11. Lower the container to the ground for exchange with
the next seed box.
a
PROBOX® specification.
a. PROBOX® is a registered trademark of Pioneer Hi-Bred International, Inc.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 36
Page 41
YP2425A Table of Contents Index Operating Instructions
Figure 38
Approaching Hopper
25255
12. If mounting a seed box for the first time in a season,
open the new seed box and measure out
approximately 3 gallons (11 liters) of seed into a pail.
1
Add
/3cup (80 ml) of Ezee Glide Plus. Mix and pour
into air box before mounting new seed box.
13. If mounting a seed box, add lubricant to the seed box
at this time. It may be easier to add it while the box is
still at ground level.
Plugging and Inconsistent Population Risks:
Ezee Glide Plus lubricant mix is mandatory for all seed,
especially treated or inoculated seed. Insufficient seed
lubricant can cause system plugging, skips and doubles.
Refer to Figure 38
14. Approach the hopper or seed box from the back (the
side with the slide gate).
Tipping Hazard:
Do not let anyone stand under or in front of the elevated seed
box. Make sure your tractor or fork lift is rated for and
configured to lift the weight. A full seed box can weight over
2500 lbs (1134 kg); a full 82 bu. hopper, over 5000 lbs
(2270 kg).
It is possible to lift the hopper or seed box from any
side, but it will only function properly if the seed gate is
to the rear of the planter.
15. If mounting a seed hopper, confirm that the hopper is
the correct version for that side. The left hopper has
the lid hinge on the left. The right hopper has the lid
hinge on the right.
16. Slowly lift the full seed box or empty hopper, and
place it in the planter air box frame.
17. Install the box retaining pins in frame corners.
18. It may be necessary to make a one-time adjustment
to the seal on the top of the air box, to obtain full
contact between air box and seed box/hopper.
19. If installing an empty hopper for planting, load seed
(and lubricant).
20. Open the slide gate.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 37
Page 42
YP2425A Table of Contents Index Operating Instructions
Figure 39
Auxiliary Hydraulic Ports
27372
1
1
2
Figure 40
CFM: Auxiliary Operations
26122
2
3
5
4
Figure 41
Auxiliary Hydraulic Valve
26048
3
5
4
3
5
Auxiliary Hydraulics
Refer to Figure 39, Figure 40 and Figure 41
The Planter planter includes, as standard equipment, an
auxiliary hydraulic circuit, intended to power a seed
auger for loading bulk hoppers.
The Aux quick-disconnect ports are on the frame. This
circuit is shared with the markers (if installed).
If markers are not installed, the Aux/Marker circuit is
always in Aux mode.
Operating Auxiliary Hydraulics
The planter needs to be unfolded for convenient access
to the manual hydraulic valve.
1. Fold any extended markers and set the tractor lever
for the marker/aux circuit to Neutral.
2. If no markers were unfolded, set the Clutch Folding
Module Marker/Fold switch to “Marker”.
3. If the machine has markers, at the left wing tool bar,
move the lever on the manual valve from
Marker (lever pointing forward) to Aux (lever
pointing back).
4. Connect the implement requiring hydraulic power.
5. Briefly Extend the tractor lever for the Marker circuit,
engage local valve/switch on implement, and confirm
proper implement operation (auger rotation in the
correct direction).
6. Set tractor circuit lever to Extend, and operate
implement with local controls.
7. When operation is complete, set tractor circuit to
Float or Neutral, and set wing valve back to
Marker .
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 38
Page 43
YP2425A Table of Contents Index Operating Instructions
Figure 42
Marker Unfolding
26042
Marker Operation
Overhead Hazard:
To prevent serious injury or death, do not allow anyone to
stand near or beyond the end of the wings during marker
operations. Marker arms are heavy and marker discs may be
sharp.
If your YP2425A Planter has markers, unfolding of the
markers is performed only after unfolding the wings.
The Marker/Aux valve on the left wing must be set to
“Marker”. See “Auxiliary Hydraulics” on page 38.
Before operating markers, make sure cylinders are
properly bled. See “Bleeding Hydraulics” on page 107.
This section presumes correct marker length for your
pass spacing. If this has not been set, or needs to be
changed, see “Marker Extension” on page 61
This section presumes correct marker chain slack. If your
chain has been replaced, repaired or stretched, adjust
the links to the correct slack length. See “Marker Chain
Length Adjustment” on page 62.
Dual markers are equipped with an automatic sequence
valve that controls which side activates, as well as
marker deployment.
Folding speed of dual markers is adjusted via set screws
on the sequence valve body. Excessive folding speed
may damage markers. See “Dual Marker Speed
Adjustment” on page 63.
Electrocution Hazard:
Beware of overhead electrical lines. If the markers get too
near to lines, the tractor, raised planter and any cart can
become “hot” with no indication. A person standing on the
ground and near equipment can complete the circuit. Serious
injury or death is likely. At higher voltages electrocution can
occur without direct contact.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 39
Page 44
YP2425A Table of Contents Index Operating Instructions
Figure 43
CFM: Marker Operation
26119
1
1
Machine Damage Risk:
If the marker gauge wheel (at the hinge) is not routinely in
ground contact, machine damage can occur.
Verify that the planter is fully lowered, the marker is fully
extended, and the marker chain has adequate slack. If only one
side is out of contact, check for debris in the outer hinge.
See “Marker Gauge Wheel Adjustment” on page 62.
Figure 44
One Marker Unfolded
26043
Marker Unfold (one side)
Refer to Figure 42 and Figure 44
1. If the Auxiliary Hydraulic circuit has been used
recently, confirm that the manual Marker/Aux valve
on the left wing is set to “Marker”.
2. On the DICKEY-john
set “Marker/Fold” switch to Marker (up). The LED
above the switch illuminates steadily for normal
operation.
3. Move tractor hydraulic control (lever or switch) for
the marker circuit 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.
On the CFM, leave the “Marker/Fold” switch in “Marker”
during normal field operations.
®
Clutch Folding Module (CFM),
Row Marker Operation
To alternate which side is marked:
1. Move the tractor’s circuit control to fold marker. Hold
until marker is folded.
2. Reverse the tractor’s circuit control. Hold until the
new side’s marker is fully unfolded.
3. Return tractor control to neutral.
Folding the Markers
If your planter has markers, they must be folded and
secured before folding the wings.
1. Move the tractor’s circuit control to Retract. Hold until
marker is folded.
2. Set circuit control to neutral.
Unusual Marker Operations
Both Sides Unfolded
With both markers in their cradles:
1. Unfold either side, and when completely deployed:
2. Move lever/switch to Retract momentarily, and return
to Extend to deploy other side.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 40
Page 45
YP2425A Table of Contents Index Operating Instructions
Figure 45
CFM: Clutch Switches
26120
1
2
3
4
234
Figure 46
Electric Clutch Lockup
29329
5
1
2
123
4
Figure 47
Clutch Plate Nearly at Cutout
26168
6
4
3
1234665
Electric Clutch Operation
A clutch enables or disables groups of row units. The
standard YP2425A planter has three clutches in the seed
meter drive system.
The standard clutch system is strictly operator controlled.
Monitor control of sections requires the optional Swath
Command™ system (page 42).
The switches Left / Center / Right correspond to
the left wing row units, center section row units and right
wing row units respectively. The data in the table below is
normally preset at the factory for your planter
configuration.
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.
Clutch Switch Coverage
24-Row (30 in.
or 70 cm)
36-Row
(20 in. Single)
47-Row
(15 in. Single)
48-Row
(30 in. Twin)
Left
Rows
1-9 10-15 16-24
1-14 15-22 23-36
1-18 19-29 30-47
1-18 19-30 31-48
Center
Rows
Right
Rows
Electric Clutch Lock-Up
In case of electric clutch failure, an electric clutch can be
mechanically engaged.
Refer to Figure 46 and Figure 47
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 . 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.
3. Insert the M8-1.25x14mm long metric bolts . When
at a cutout, the bolt seats with minimal resistance
until the bolt head reaches the clutch face.
4. Reinstall the plugs so they are not lost.
Use only the provided 14mm length bolts. Longer
bolts will damage the clutch. Shorter bolts may not
effect a lock-up.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 41
Page 46
YP2425A Table of Contents Index Operating Instructions
Figure 48
Swath Command™ Components
34006
Swath Command™ Clutch Operation
The optional Swath Command™ system replaces the
standard 3-section operator-controlled clutches with 12
sections of clutches under seed monitor control. If you
have the standard clutches, see “Electric Clutch
Operation” on page 41.
The Swath Command™ system automatically turns off
rows when the row unit enters a non-planting area (as
defined by a pre-loaded prescription), or if the row enters
an area already logged as planted during prior passes.
Setup and operation of a factory-installed Swath
Command™ system is covered in a separate manual:
Swath Command™ Section Control, publication part
number 403-857M.
Swath Command™ ordering information is found on
page 133.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 42
Page 47
YP2425A Table of Contents Index Operating Instructions
Figure 49
Yield-Pro
®
Air System for Air-Pro® Seed Metering
29595
1
2
3
5
6
5
4
7
8
9
16
13
12
10
11
14
15
171328143915410165116
12
Air System Operation
Hydraulic Fan Pressure Sensor Lines
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
Excess Air to Air Box Air Release Screen
Meter Pressurization System Elements ( shows air direction)
Air-Pro® Seed Meter
IntelliAg® Console
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 43
Page 48
YP2425A Table of Contents Index Operating Instructions
There are console menus for adjustment of metering air, and
manual fall-back modes.
12345
In the case of insufficient fan air, or significant seed delivery air
leaks, seed flow may be irregular or stop.
6
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.
7
8
9
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.
10
11
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.
12
13
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.
141516
Air System Overview
The hydraulic fan supplies air for both seed delivery
and meter operation. Fan rpm is operator-adjusted
(page 46) 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. Air
pressure in the seed delivery system is not presently
reported. 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
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
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 .
®
, and flows out air box manifold
®
meter
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 44
Page 49
YP2425A Table of Contents Index Operating Instructions
Figure 50
Hydraulics at Fan
29764
1
2
3
4
5
1
2
3
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 Meter Pressurization Adjustment”
on page 65.
Refer to Figure 50
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 16.
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 Risk:
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
1
/16inch low back-pressure
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 46.
4. The fan hydraulic circuit includes a check valve ,
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).
Fan speed is controlled by the tractor circuit (and not the
seed monitor). Fan rpm is reported by the seed monitor
console.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 45
Page 50
YP2425A Table of Contents Index Operating Instructions
Recommended Fan Speeds
YP2425A Seed Hopper* Bulk Box
Initial Fan Speed 3300 rpm 3000 rpm
Oil Consumption 21.2 gpm 19.2 gpm
80 liters/min 73 liters/min
Fan Speed Range 2700 - 4300 rpm 2700 - 3600 rpm
Oil Consumption 17.2 - 27.8 gpm 17.2 - 23.2 gpm
65 - 105 lpm 65 - 88 lpm
* 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 ProBox.
Low Population Risk at Turns:
The figures above do not include oil for lift/lower or oil for
marker operation. Aggressive lift/lower operations, and
simultaneous lift/marker operations, can reduce fan rpm below
that needed to pressurize meter disks. If seed falls out of
pockets, low population bands will occur shortly 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
H2O range, and vary considerably with crop.
During “FILL METER”, all air is routed to the air box, and none
to the meter pressurization system.
Before the first planting each season, or when using new
meters or meter wheels for the first time, or at the start of each
season, before filling with seed, add 1/3cup (80 ml) Ezee
Glide Plus to bottom of airbox.
Recommended Fan Speeds
Figure 51
Seed Y-Tube
29758
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 4300 rpm or under 2500 rpm.
At excessive rpm, too much air flow can cause:
• seed to plug the air box
• seed suspension in a bulk seed box
• unstable split air control
• oil heating
• slow lift times
If the rpm is too low, the split-air system may divert
nearly all the air to the 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 2500 and 4300 rpm, see “Seed Delivery
Troubleshooting” on page 93.
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.
To set and adjust the air system, see “Fan and Meter
Pressurization Adjustment” on page 65
Y-Tubes
Refer to Figure 51
Y-tube gates can be shut off to feed only one row for
single-row planting on a twin-row machine. In the
photograph, the left meter tube is open and the right
closed.
You can also shut off the Y-tube gates to clean out the air
system and meters. See “Air System Clean-Out” on
page 99.
®
air pressure gauge. These
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 46
Page 51
YP2425A Table of Contents Index Operating Instructions
Figure 52
Weight Transfer Valve and Cylinder
36421
2
1
4
3
5
12345
5
Figure 53
Seed Monitor Console
29754
Weight Transfer Operation (Option)
This option provides a control valve , plumbed into the
hydraulic drive circuit, and a cylinder for each wing.
Up to 1000 pounds (450 kg) of mainframe weight may be
transferred to each wing when oil is being supplied to the
hydraulic drive circuit.
Once set, the circuit usually requires little adjustment in
normal field operations. To set the circuit:
1. Unfold and lower the planter in field conditions.
2. Supply oil to the hydraulic drive circuit (or operate
the PTO at field rpm if using a PTO pump that
supplies the hydraulic drive). The hydraulic drive
motor itself does not need to be operated.
3. Loosen the lock disc at the valve block. Adjust the
knob until the gauge reads approximately
1000 psi. Tighten the lock disc.
4. Lower the planter. Engage the hydraulic drive (with
seeding disabled) Pull forward at normal field speed
for a short distance. Stop.
5. Check that the wings are level.
• If the wings ends are lower than the center,
decrease the pressure at the valve .
• If the wing ends are higher than the center,
increase the pressure.
A relief valve in the valve block prevents any
damage from over-pressure.
See page 16 and page 156 for important information
about movements without a suitable tractor. See
page 126 for ordering information.
Monitor Operation
Monitor operation is described in a separate manual
supplied with your YP2425A Planter.
Operations covered in that manual (and therefore not in
this manual) include:
• hydraulic drive control
• seed rate calibration
• planting rate
• fertilizer rate
• setting rate limits and detecting out-of-limits
• GPS integration
• fan rpm
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 47
Page 52
YP2425A Table of Contents Index Operating Instructions
Refer to Figure 54 above. The “Fert.Pump” switch
on the Clutch Folding Module is used only with Great
Plains PFC carts. It might be used to control a clutch
on a user-provisioned system that has a
solenoid-operated clutch.
System Plugging Risk:
Do not allow fertilizer to remain in the tanks for extended
periods or settling of material and system plugging will occur.
The next four pages cover plumbing diagrams and
system component identification for the available
on-board system and the available SML cart system.
Operations are described on page 51.
Figure 54
CFM: Tank Pump Control
26122
1
1
Fertilizer Systems Overview
The YP2425A supports one or two optional fertilizer
boom systems:
• one or two Type 2 single-section booms, typically
used with on-board tanks, trailing SML cart or the
smaller tank on a PFC tank cart, or a
user-provisioned trailing cart, supplied by an optional
planter- or cart-mounted hydraulic pump system;
• a Type 3 three-section boom, typically used with a
Great Plains PFC cart user-provisioned trailing cart,
supplied by a pump and manifold on the cart.
Use only pre-mixed liquid fertilizer. Do not use dry
fertilizer added to water in the tank.
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 an accident.
If the fertilizer product is at any risk of precipitation,
stratification or sedimentation, load it shortly before
application. Although the on-board and SML tanks
include bypass return ports, the flow through these lines
is too low to act as agitation (and may even be shut off).
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 48
Page 53
YP2425A Table of Contents Index Operating Instructions
L10
L26
L14
L33
L34
L35
L36
L48
L32
L30
L18
L17
L31
L24
L20
L22
L21
L16
L25
L27
L29
L37
L39
L38
L40
L46
L44
L41
L42
L43
L43
L47
L12
L23
Figure 55
Cart Pump Fertilizer System
36414
SML Cart Pump System Diagram
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 49
Page 54
YP2425A Table of Contents Index Operating Instructions
L10
L12
L14
L16
L17
L17
L18
L20
L21
L22
L23
L24
L25
L26
L27
L29
L30
L32
L33
L34
L35
L36
L37
L38
L39
L40
L41
L42
L43
L43
L44
L45
L46
L47
L48
SML Cart Tank Fertilizer System Elements
Liquid fertilizer system callouts are consistent across
this entire manual. No single system includes all
elements.
Tank Lid
Tank lids are vented and may be kept tight. Lids have a
removable center section for easier hose fill.
Cart Tank
Cart tanks is 500, 735 or 1000 gallons (1900, 2800 or
3750 liters) each. A sight gauge at one end shows
current fill level against a scale.
Tank Discharge Shutoff Valve
This valve is normally left open.
Quick-Fill Inlet and Plug
This 2 inch fitting secures either the plug or the fitting of
an external hose using cam locks. Always close the
valve before removing the plug.
Quick-Fill Shutoff Valve
This valve is opened for filling tanks from a pressurized
supply source.
Quick-Fill Inlet Strainer
This fitting containers an element to trap coarse debris
in the material. Reverse flow through this strainer is not
recommended.
Pump
The centrifugal pump is powered by a hydraulic motor
controlled by a proportional valve (not shown). The
valve is controlled by the seed monitor.
Pump Outlet
The pump normally operates at a flow rate higher than
required for the booms. The pump output is split into a
boom flow, and a recirculation/bleed flow.
Air Bleed Line
This small line provides pump priming and recirculation
of excess material afield.
Pump Drain Plug
Remove this plug to drain or flush the bleed line or
pump.
Pump Recirculation Valve
This valve is normally open. It may be closed for
reduced bypass at very high application rates.
Recirculation Lines to Tank(s)
This line provides pump priming and recirculation of
excess material afield.
Tank Recirculation Valve(s)
This valve is normally open. It might be closed for
maintenance.
Pressure Relief Valve
This valve protects the system from damage in the
event of overpressure due to blockage or valve
misconfiguration. Above approximately 65 psi, excess
material is returned to both the pump and the tanks.
Overpressure Dump Line
This line returns the majority of any overpressure
excess material to the tanks.
Pump Outlet Selector Valve
This valve sets the boom flow side of the pump outlet to
boom, off or off-load. A decal on the mount indicates
handle positions.
Boom Supply Strainer
A filter element in the canister traps large particles that
might clog boom orifice plates. See the Seed Rate
manual for maintenance and alternate element screen
sizes.
Strainer Shut-Off Valve
Normally open, this valve isolates the boom side of the
strainer for servicing.
Cart Outlet Valve
This valve is open for field application and normally
closed at all other times.
Planter Inlet Valve
This valve is open for field application and normally
closed at all other times.
Flow Sensor
This fitting measures material flow to the boom.
Readings from this sensor are used by the seed
monitor to adjust the pump rate.
Boom Shutoff Valve
This valve is normally open. It might be closed for
maintenance.
Passive Manifold
There are separate boom sections for the planter center
section and each wing.
Boom
There are separate boom sections for the planter center
section and each wing.
Boom Clamp
Boom taps are provided for at least the number of rows
present.
Nozzle Body
The standard fitting on an active row is a nozzle body
that accepts various size orifice plates.
Nozzle Gasket
The orifice plate sits inside this rubber seal.
Orifice Plate
These stainless steel plates have precisely sized center
holes that provide flow resistance for optimum boom
pressure. They do not regulate flow rate, but must be
sized to the flow rate.Standard booms include sizes 24,
34 and 48.
VeriFlow Nozzle
These optional nozzles are an alternative to changing
orifice plates. They are spring loaded to maintain a
constant back-pressure over a wide range of rates.
Shutoff Cap
Any unused boom clamps are provisioned with caps
instead of nozzles. Caps may also be used to shut off
rows when changing row spacing.
End Cap
Each boom section has at least one end cap. These are
removed for flushing booms, such as for winterizing.
Nozzle Drop Line
Each active nozzle is connected to the row applicator
via tubing.
Row Applicator Tube
All standard 25 Series row units include an applicator
tube which can deliver material in-furrow just ahead of
the seed tube. Optional Keeton
®
seed firmers (shown)
have a delivery tube for applying material behind the
seed tube.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 50
Page 55
YP2425A Table of Contents Index Operating Instructions
Figure 56
Tank Cart Hitched to Planter
26049
Figure 57
Material Library Screen
36431
1
123
Trailer Operations
Great Plains SML-500, SML-735 and SML-1000
semi-mounted fertilizer carts include a 2-point quick hitch
for planter connection. Great Plains PFC1600 or
PFC2000 fertilizer tank carts require the optional pintle
hitch for the planter (see page 127). Hitching/hookup and
operating instructions are found in the tank cart
Operator’s Manual.
Uncontrollable Load Hazard:
DO NOT EVER transport the tank cart while hitched to the
planter (in train) over roads if there is any liquid in (either)
tank. Tank(s) must be empty for transport, or tow the tank
separately.
Machine Damage Hazard:
Do not attempt reverse operations with a trailer hitched to the
planter. Trailer direction is extremely difficult to control.
Fertilizer Systems Operation
Hydraulic Fertilizer Pump
This information applies to planters with Great Plains
hydraulic fertilizer pumps. For systems using customer
provisioned components (pump, tanks or controllers),
consult the documentation for those components.
Refer to Figure 55 on page 49
Flow rate (pump rpm) is controlled by a proportional
valve at the pump motor inlet, under the control of the
IntelliAg
Refer to Figure 58
The default rate is set on the seed monitor console
(Material Setup menu). In this example, the material has
been named “10-34-0”. See the Seed Rate Manual for
details of system setup and configuration.
Refer to Figure 58
The field rate is displayed on the main Work Screen,
and may be adjusted via the Inc/Dec softkeys , once
they are configured. See the Seed Rate Manual for
details.
®
system.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 51
Page 56
YP2425A Table of Contents Index Operating Instructions
Figure 58
Fertilizer Rate on Work Screen
36438
2
3
4
4
Figure 59
CFM: Tank Pump Control
26122
1
1
Figure 60
AccuShot System Manuals
38425
The hydraulic fertilizer system may be enabled or
disabled entirely using the Channel On/Off softkey , or
by disabling the Channel in the main Channel Setup
screen (not shown).
Ground Drive Pump Operation
The PFC1600 and PFC2000 tanks include a
ground-driven pump with an electric clutch. The clutch
circuit is controlled by the “Fert.Pump” switch on the
Clutch Folding Module. Also, as the pump is
ground-driven, it automatically starts and stops with
planter movement.
AccuShot System (Option)
Some Yield-Pro Planter models have the option of
having AccuShot installed for fertilizing crops. AccuShot
applies a set amount of liquid fertilizer to a specific
location relative to each seed in a furrow. More precise
application gives seeds a better chance at germination
and improved growth.
If your machine has AccuShot, refer to the AccuShot
Operator / Maintenance Manual and AccuShot Quick
Start Guide for more information on how to use your
application system.
Manual Name Part Numbers
AccuShot Operator Manual 115700-001
Accushot Quick Start Guide 115700-002
This kit is factory install only. Planters cannot be fitted with
AccuShot through your dealer.
Field Set-Up Checklist
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 52
Page 57
YP2425A Table of Contents Index Operating Instructions
To complete checklists, you may need to refer to the:
SRM: Seed Rate Manual (SRM),
PDC: DICKEY-john
®
Planter/Drill Control manuals, or
QSG: DICKEY-john
®
Quick Start Guide
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.
Electrical Checklist Page
Verify electrical hookups solid 18
Power-up seed monitor terminal and
observe any diagnostic messages
Verify Material and Rate, and hydraulic drive
and “SPLIT AIR” Channel setup
With hydraulic circuits in neutral, check
switches and indicator lights on CFM switch
panel. Confirm Master OFF.
Verify, with planter lowered, radar speed
sensor is pointed at ground, approximately
35 below horizontal.
a. Refer to sensor documentation.
Hydraulic Hitching Checklist
Marker/Aux valve to Marker 38
Local bypass off (hydraulic hitch only) 19
Fan case drain to low pressure drain port 17
Fan return line to low pressure return port 17
All other hydraulic circuits connected 17
Check fan direction
Check hydraulic drive connection
a. Operate fan briefly and observe rotor blades spinning
toward exit port. Check rpm on seed monitor.
b. Perform a “FILL DISK” operation via the seed monitor.
Mechanical Checklist Page
Tongue height preset on 3-point 22
Unfold planter 26
Tongue front latch hook engaged 27
Side-to-side level at gauge wheels 23
Marker initial length set 61
Marker disc angle set 61
a
and rpm
b
PDC
QSG
PDC
-
a
Page
45
16
Air System Checklist Page
Manifold to seed box or hopper seal -
Add seed lubricant to each air box, prior to
first use, and prior to loading seed
Seed loaded 51
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
Y-tubes turned on to correct rows 46
Blank disks at unused rows. 83
Shutters set the same on all rows. 79
Start fan. Turn on seed monitor active air
control. Watch for split air vane movement
or air pressure changes.
Activate the “FILL METER” function of the
monitor. Watch for air vane movement, or
watch meter pressurization go to zero.
On a new planter, pre-lubricate the air
system with Ezee Glide Plus.
Set the meter pressurization target to the
recommended value for the crop.
Row Cleaner Checklist
Check for correct installation of row cleaners on
all rows if equipped.
Check that row cleaners do not catch on
hydraulic hoses.
Carefully watch when folding and unfolding
planter the first time to ensure clearance of row
cleaners.
Frame Mounted Options Checklist Page
Row cleaner depth setting 73
Coulter depth and alignment 74
124
-
45
PDC
PDC
35
PDC
Page
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 53
Page 58
YP2425A Table of Contents Index Operating Instructions
Row Units Checklist Page
Preset depth handles to 7 holes showing
above “T”
Preset down force springs to first notch
(lightest) setting for most conditions, 2nd
notch otherwise)
Set all unit-mounted coulters to 1/4inch
shallower than opener blades.
Check coulter alignment to row 75
Check closing wheel alignment 87
Set closing wheels to first notch (light
setting)
Check action and contact of side depth
wheels
Gauge wheel scraper gap (if installed) 78
Treatments (Options) Checklist Page
Confirm Clutch Folding Module “Fert.Pump”
switch OFF
Check tractor-mounted components
Pump chains(s), drive wheel if ground drive
Execute Tank Cart Checklist
Check for correct orifice plates
Fill system with 100 gallons of water, and
check for leaks
Check all row unit lines are connected, free
of kinks, and discharge tube/nozzles are
clear
Inlet and hose valves open
SmartBox system loaded, powered up
a. Check supplier manual for tanks and pump. Check
fertilizer section of monitor manual.
b. See SML or PFC2000/PFC1600 Manual.
c. Check Seed Rate manual, and manual for fertilizer pump
system.
76
71
74
87
77
51
Hydraulic System Checklist Page
Check tractor hydraulic reservoir full -
Inspect connections for leaks -
Perform a raise and lower operation 28
Set Clutch Folding Module switch
“Marker/Fold” to “Marker”
39
Hydraulic Planter Drive Checklist Page
Check chain lubrication and slack 111
Input initial values for desired population
Calibrate radar speed sensor pulses with
planter lowered.
a
155
Lubricate slider joints on drive shafts 114
Check clutch operation 39
a. Refer to seed monitor manual and Seed Rate manual.
Meters Checklist Page
a
Correct disks for seed
a
Seed inlet shutters set
b
c
-
-
Corn?
Check timing of meters for twin-row
Check chain tension
Initial meter pressurization set 46
a. Refer to Seed Rate manual.
a
a
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 54
Page 59
YP2425A Table of Contents Index Operating Instructions
Figure 61
Clutch Folding Module: Planting
Configuration
29768
Field Operation
Perform all steps in “Pre-Start Checklist” on page 25
and “Field Set-Up Checklist” on page 52.
Use Depth Control mode. If tractor 3-point hitch
control is set for Load Control, hitch movement
may cause changes in row unit depth resulting in
uneven depth control.
First Pass Operation Checklist Page
Raise planter and line up at start of first
1.
planting row
Set tractor 3-point hitch to “depth control”
2.
operation (and not load control)
Unfold marker on next-row side. 38
3.
Set fan hydraulic circuit to low flow, engage
4.
circuit. Gradually adjust hydraulic flow to
recommended rpm.
Engage hydraulic drive via seed monitor.
5.
Refer to seed monitor manual.
If planter has a fertilizer system integrated
6.
with the DICKEY-john
the “Fert.Pump” switch on the Clutch
Folding Module to ON.
In the CLUTCH cluster of the Clutch Folding
7.
Module, set all
to ON.
Pull forward, lower planter, and begin
8.
planting for a short distance.
Stop. Assess:
9.
®
seed monitor, set
a
switches, including Master,
• planting depth
• seed spacing
• press wheel operation
• fertilizer application (if in use)
Make necessary adjustments 50
10.
a. Fert. Pump switch has no function for hydraulic fertilizer
pump. Use monitor screens to control it.
26
43
44
39
Skip and Double Checks
A. Dig up seed (or plant shallow with press wheel tied
up). Check seed spacing against charts.
B. With meters still charged with air, carefully inspect
-
disks at several rows.
Inspect the arc from just after the top tuft brush to the
bottom edge of the seed drop brush. Look for cells
(seed pockets) having no seed, or more than one
seed. You may need a flashlight to perform this
-
inspection.
Suspending Planting Checklist Page
Stop tractor
1.
Fan hydraulic circuit to Float or Neutral 46
2.
Raise planter 26
3.
Fold Marker 38
4.
Ending Planting Checklist Page
Suspend operations as above, then
1.
Install lift locks 30
2.
Lights ON -
3.
4.
Transport
Transpo
rt
Sharp Field Turns Checklist Page
Fold marker 38
1.
Raise planter 26
2.
Make turn
3.
Lower planter 26
4.
Unfold marker on next-row side. 38
5.
Resume planting.
6.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 55
Page 60
YP2425A Table of Contents Index Operating Instructions
Figure 62
Deploying 3-Point Stands
26034
4
1
3
2
2
Roll-Away Hazard:
DO NOT unhitch planter while on a slope. Always block tires
when unhitching from tractor. There is not enough weight on
parking stand(s) to anchor planter on a slope.
2
1
234
567
Figure 63
Parking Stand
29242
5
6
7
7
5
Short-Term Parking
1. Fold markers. See “Folding the Markers” on
page 40.
2. Choose a location with level firm ground. Do not
unhitch on a slope.
3. Raise the planter.See “Raising Planter” on page 29.
4. Fold the planter (optional). See “Folding the
YP2425A Planter” on page 30.
5. Block tires.
6. Reinstall the parking stand (“Hitching Tractor to
Planter” on page 16).
3 Point Hitch Parking
Refer to Figure 62 (shown without tractor for clarity)
7. For the standard 3-point hitch, deploy the two
forward stands . Remove the inner pin , swing
the stand out, down and vertical around the
bottom pin , and reinsert the pin at .
Hydraulic Tongue Hitch Parking
Refer to Figure 63
8. Remove pins holding main parking stand in
storage bracket. Remove stand from storage.
9. Use 3-point hitch or tongue cylinder to lift planter
high enough to align holes in stand with holes in
tongue. Insert locking pin in parking stand. Secure
stand with pins.
10. If ground is soft, place a thick board under the stand.
11. Use 3-point hitch or tongue cylinder to lower planter
onto parking stand.
12. Hydraulic hitch only: Use tongue cylinder to lift
tongue off tractor draw bar.
Either Hitch Parking
13. Set all implement hydraulic circuits to Float to relieve
pressure in lines.
14. Shut down hydraulics. Unplug hydraulic lines from
tractor. Do not allow hose ends to rest on the ground.
15. Unplug planter light cable from tractor.
16. Unplug monitor harness from console.
17. 3-point: Unhook tractor from planter hitch.
18. Pull tractor away.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 56
Page 61
YP2425A Table of Contents Index Operating Instructions
Figure 64
Airbox Inlet Sealed,
Clean-Out Closed
29771
Removing the seed boxes/hoppers 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 optional 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.
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.
Long-Term Storage
Complete Parking steps (page 56) first.
Store the YP2425A Planter indoors if possible. Great
Plains recommends parking/storing in the raised
configuration, folded, on the parking stands and with all
lift cylinder locks installed.
1. Empty hopper (page 99).
Refer to Figure 64
2. Close the seed box or hopper clean-out door.
Clean out the air system (page 99).
3. Remove hopper or seed box (page 36).
4. Cover and seal off the opening at the top of the air
box. Leave clean-out door slightly ajar to allow any
condensed moisture to drain off.
5. 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.
6. 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 100, for more
information.
7. Apply grease to exposed cylinder rods to prevent
rust.
8. Unscrew caps on end of fertilizer booms and flush
fertilizer lines (if present). Flush system with RV
antifreeze if there is any chance of freezing prior to
next implement use.
9. Empty and clean fertilizer strainers.
10. Lubricate all points listed in Maintenance to prevent
rust.
11. Clean planter of mud, dirt, excess oil and grease.
12. Inspect planter for worn or damaged parts. Make
repairs and service during off season.
13. Use spray paint to cover scratches, chips, and worn
areas on the planter to protect the metal.
14. Cover planter with a tarp if stored outside.
Storage: Fertilizer Option
The pump, strainer and manifold system require special
attention prior to storage. See “Fertilizer System
Maintenance” on page 113.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 57
Page 62
YP2425A Table of Contents Index Adjustments
Even if your planting conditions rarely change, some of
these items need periodic adjustment due to normal
wear.
Adjustments
To get full performance from your YP2425A Planter, you
need an understanding of all component operations.
Many provide adjustments for optimal field results. Some
adjustments were covered earlier in this manual.
Adjustment Page The Adjustment Affects
Tongue Height 19 Correct draft load to tractor
Frame height 21 Planting depth consistency
Frame level 21 Planting consistency
Height Switch Adjustment 56 Correct off/on state of meter drive
Wing Leveling 22 Planting consistency
Clutch Lock-Up 41 Temporary operation with a failed clutch
Air System 43
Fan Speed 46 Optimal seed distribution
Meter Pressurization (values from SRM
Planting Rate SRMaRefer to Seed Rate manual
Marker Adjustments
Marker Width 53 Intended swath spacing
Marker Chain Length Adjustment 54 Marker folding operation
Dual Marker Speed Adjustment 55 Reliable marker operation
Fertilizer Setup (option) 60 Seed germination and growth
Fertilizer Orifices (option) SRMaRefer to YP2425A Planter Seed Rate manual
Frame-Mounted Row Accessories 63
Terra-Tine Row Cleaners 63 Row preparation
Coulters 64 Row pre-furrow depth and trash cutting
Vantage I Fertilizer Delivery 64 Fertilizer placement
25AP Series Row Unit Adjustments 65
Row Unit Lock-Up 82 Single/twin-row operation
Row Unit Down Pressure 66 Planting depth uniformity
Row Cleaner Adjustments (Option) 68 Row preparation
Coulter Adjustments (Option) 69 Row pre-furrow depth
Row-Unit Opener Adjustments 71 Seed depth, spacing, coverage
Side Depth Wheels 72 Seed depth
Adjusting Gauge Wheel Scrapers 73 Consistent seed furrow depth
Seed Meter Setup and Adjustment 74 Consistent seed population
Seed Firmer Adjustments (Option) 80 Seed-soil contact
Press Wheel Adjustment 81 Effective soil coverage
Row-Pro™ Adjustment 164 Consistent planting depth
Monitor Adjustments PDC
a. SRM: Seed Rate Manual (401-626B)
a
)
65 Consistent seed flow and disk singulation
Refer to DICKEY-john
®
Planter/Drill Control manuals
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 58
Page 63
YP2425A Table of Contents Index Adjustments
Figure 65
Seed Monitor Rate Screen
29772
Figure 66
Fertilizer Rate on Work Screen
36438
29772
2
3
4
Figure 67
CDS-John Blue
®
Fertilizer Pump
31320
Setting Material Rates
Planting Rate
Adjusting the planting rate requires the following:
1. 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).
2. Preparing rows:
Correct seed disk selection and Y-tube settings are
required for correct rate. Meter shutter setting and
meter pressurization adjustments assure the rate.
See the SRM.
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 via seed monitor:
See the SRM and the PDC manuals.
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 Pump Fertilizer Rate
See the Seed Rate manual (401-626B) for full details.
The following is a brief summary of steps:
1. Row orifice setup.
2. Relief valve setting.
3. Strainer setup.
4. Set rate on monitor console.
Ground Drive Pump Fertilizer Rate
See the Seed Rate manual (401-626B) for full details.
The following is a brief summary of steps:
1. Row orifice setup.
2. Pump setting dial and sprockets.
3. Relief valve setting.
4. Strainer setup.
®
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 59
Page 64
YP2425A Table of Contents Index Adjustments
Figure 68
Gauge Wheels
29711
3
1
2
123
1
2
Crushing and Sharp Object Hazards:
Never allow anyone near the planter when folding or
unfolding the markers. You may be injured if hit by a folding or
unfolding marker. Markers may fall quickly and unexpectedly
if the hydraulics fail.
Gauge/Transport Wheel Adjustments
The gauge/transport wheels serve two functions:
Refer to Figure 68
1. When the planter is lowered, the wheels establish
the heights of their respective sections, nominally a
tool bar height of 26 inches (66 cm) above the
planting surface.
The main and trailing wheels are not adjustable
in height.
The wing gauge wheels may be slightly raised or
lowered by adjusting a nut on the cylinder rod. See
“Wing Leveling, Inboard End” on page 23.
2. When the planter is raised, all of these are the
transport wheels. The main wheels are rigid, and
aid steering. The trailing wheels are full castering.
The gauge wheels are usually adjusted only to bring all
sections to level.
Marker Adjustments
There are five adjustments and one maintenance item
for markers:
• Disk Angle (page 61)
Even if your row spacing rarely changes, you may
need to adjust disk angle for soil conditions and
planting speed.
• Marker Extension (page 61)
Once set for a specific row spacing, this only needs
periodic checking to ensure the clamp is secure.
• Marker Support Wheels (page 62)
Three bolt holes are available for adjusting height.
• Chain Length (page 62)
This needs to be set if the chain is replaced. It may
also need adjustment for unusual terrain.
• Marker Speed (page 63)
Once initially set by your dealer, this rarely needs
modification.
• Shear Bolt Replacement (page 109)
If a marker hangs up on an obstruction, a bolt at the
fold is designed to fail.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 60
Page 65
YP2425A Table of Contents Index Adjustments
Figure 69
Marker Disk Angle
11757
T
2
1
N
W
T
2W1
N
Figure 70
Marker Extension
26054
Planter Marker Extension
Model Left Right
YP2425A-2430 375.0 inches
YP2425A-2470 875.0 cm
YP2425A-3620 370.0 inches
as -1840 380.0 inches
YP2425A-4715 360.0 inches
as -2430 375.0 inches
YP2425A-48TR 370.8 inches
as -2430 358.3 inches 375.0 inches
E
2TE
E
Figure 71
Marker Extension Adjustment
26055
1
2
3
123
1
Marker Disk Adjustment
Sharp Object Hazard:
Use caution when making adjustments in this area. Marker
disks may be sharp.
Refer to Figure 69
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 .
The direction of travel tends to drive the disk angle
to Wide. If bolts are not tight enough, or loosen over
time, the disk will slip into the Wide mark
configuration.
3
/8inch bolts holding the disk assembly.
Marker Extension
Marker width needs to be adjusted once for the initial
YP2425A Planter setup, and later only if changing row
spacing (including locking up row units for single-row
operation on a twin-capable planter).
1. Move the planter to a location where both markers
may be safely unfolded. Unfold the planter. Lower
the planter. Unfold one marker.
2. Find the suggested initial marker Extension in the
table at right. Extension distance is the same for both
planter sides unless otherwise noted.
Refer to Figure 70 and Figure 71
3. Measure out the Extension distance from the
center-line of each outside end row unit (whether in
use or not). Do not measure to center of row pair.
4. Mark the ground at this point.
5. To adjust marker width, loosen nuts on U-bolts .
Move marker disk tube in or out to get the proper
adjustment. Tighten nuts .
6. Repeat step 3 through step 5 for the other side.
7. With the planter still lowered, drive forward a few feet
for each side.
8. Check the mark locations. Adjust to obtain the table
value.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 61
Page 66
YP2425A Table of Contents Index Adjustments
Figure 72
Marker Gauge Wheel
29516
2
1
2
1
2
Figure 73
Marker Chain Slack
26057
5
5
Marker Gauge Wheel Adjustment
Refer to Figure 72
The purpose of the marker support wheel is to carry
the weight of the inner section of the marker arm.
If the wheel is not touching the ground, or is often off the
ground during marker operations, remove the bolts
and move the wheel to a lower hole.
If the marker disc is frequently off the ground, the support
wheel mount may need to be moved to a higher set of
holes.
Marker Chain Length Adjustment
Great Plains suggests checking marker chain slack
every few years. If any maintenance or repairs cause the
chain to be disconnected, correct slack needs to be set
on reinstallation.
Perform any checks and adjustments with the marker
folded and tilted down into its cradle.
Refer to Figure 73
Lift the free end of the lift arm weldment until
horizontal. Reattach chain so that it is taut.
Ideally, the unfolding marker reaches the ground 2-3 feet
(60-90 cm) before the marker is completely unfolded.
Equipment Damage/Marker Failure Risks:
Set correct chain length. A chain length too long can result in
excess loads on the marker and nuisance shears, due to
striking the ground too early during unfolding. An
under-length chain can also prevent the marker from fully
resting in the cradle when folded. A chain too short can result
in unsatisfactory marker operations, including loss of ground
contact on uneven terrain.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 62
Page 67
YP2425A Table of Contents Index Adjustments
Figure 74
Marker Sequence Valve Location
26058
1
2
1
2
F
S
S
Figure 75
Marker Speed Adjustment
14048
S
F
Dual Marker Speed Adjustment
Crushing and Sharp Object Hazards:
Never allow anyone near the planter when folding or
unfolding the markers. You may be injured if hit by a folding or
unfolding marker. Markers may fall quickly and unexpectedly
if the hydraulics fail.
Refer to Figure 74 and Figure 75
Adjust folding speed for dual markers with hex
adjustment screws on the sequence valve body. The
valve sequence body is located on top of the left wing
frame.
Loosen jam nuts before making adjustments.
There is one adjustment screw for unfolding speed
and one for folding speed . You can identify adjustment
screws by markings stamped in valve body.
Turn adjustment screws clockwise ( : slower) to
decrease [un]folding speed and counterclockwise
( : faster) to increase [un]folding speed.
With tractor idling at a normal operating speed, adjust
marker folding to a safe speed. Excessive [un]folding
speed could damage markers and void the warranty.
After adjusting the folding speed, tighten jam nuts on hex
adjustment screws to hold settings.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 63
Page 68
YP2425A Table of Contents Index Adjustments
Crushing Hazard:
Exercise extreme caution when adjusting the switch.
Figure 76
Height Switch Location S/N B1030G+
32347
1
2
3
4
5
6
12345
6
Figure 77
Height Switch Location S/N B1029G-
26123
1
1
Figure 78
Height Switch Adjustments
26123
2
5
4
3
234
5
Height Switch Adjustment
(S/N B1030G+)
Refer to Figure 76
The YP2425A Planter includes a sensing switch that
signals the seed monitor (and activates the optional
hydraulic meter drive), when the planter is lowered for
planting. The switch is located at the rear cross tube on
the planter’s left side.
Although factory-preset for typical planting conditions,
Great Plains recommends adjusting this switch for your
exact field conditions and planting depth.
1. Lower the planter to the height at which seed
delivery is to begin.
2. Loosen bolt holding switch bracket to plate .
3. Move bracket forward or rearward so that switch
toggle arm makes contact with rear cross tube .
4. Tighten nuts.
Switch is in “Neutral” position when planting. Switch is
“Activated” when raised.
Height Switch Adjustment
(S/N B1029G-)
Refer to Figure 77
The YP2425A Planter includes a sensing switch that
signals the seed monitor and activates the hydraulic
meter 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 outside of the forward end of
the right link arm at the center section tool bar.
Switch is in neutral position when planting. Switch is
“activated” when raised.
Refer to Figure 78
1. Lower the planter to the height at which seed
delivery is to begin.
2. Loosen U-bolt holding switch bracket to link.
3. Move bracket forward or rearward so that switch
toggle arm makes contact with tool bar .
4. Move switch/bracket forward
Tighten nuts.
3
/8inch (13 mm)
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 64
Page 69
YP2425A Table of Contents Index Adjustments
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 Meter Pressurization Adjustment
Fans on PTO
For fans powered by an optional PTO kit (page 126), the
fan speed is set at the kit’s flow control valve. See
manual 411-015M for details.
Fans on Hydraulic Remotes
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 46.
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.
®
Planter/Drill Control user
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 65
Page 70
YP2425A 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 91.
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.
12. During the first pass, take note of the average
populations reported on the seed monitor.
Typical Location: Item:
Screen 1, first row
above graphs
Average Overall Population
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 91.
If population is only slightly low, the problem can be
skips (periodic empty disk pockets). If slightly high,
the problem can be doubles (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 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, and the 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 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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 66
Page 71
YP2425A Table of Contents Index Adjustments
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 79
Fan Butterfly Valves
29773
3
2
U
D
F
B
L
R
1
123
Fine-Tuning Meter Pressurization
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).
16. Observe the current overall average population
reported by the monitor.
17. Adjust the meter pressurization down, in discrete
steps, waiting 5-10 seconds between adjustments,
until skips occur (actual population begins falling
below target). Note the pressure at which skips
begin.
18. Restore pressure to the initial value at step 16.
19. 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.
20. Adjust meter pressurization to a value halfway
between the limits established at step 17 and
step 19. 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 79
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 bottom three manifold outlets ).
Remaining air is sent to the top outlets for seed delivery.
There are two butterfly valves at the top fan outlets:
left air box , and right air box . The recommended
butterfly valve setting is 0°. Recommended initial fan
speed depends on planter configuration. See page 46.
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 4000 rpm or speeds under 2000 rpm.
Seed Delivery Butterfly Valves
These valves are factory pre-set to the suggested 0°
(wide open).
Unusual situations can cause an imbalance of seed flow
between left and rights side of the planter, such as
dissimilar bulk seed boxes on each side.
If meters on one side of the planter are being starved of
seed, first try increasing the fan rpm. If the fan rpm is
already high, or increasing it causes other problems, use
the valves.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 67
In these cases, use one butterfly valve to reduce the air
flow to one air box. Leave the valve on the other side at
zero.
Set the valve on the high-flow side. Start with a setting in
the 20-30° range. Re-prime all meters (page 90). make
further valve adjustments until you achieve a balanced
airflow.
Page 72
YP2425A Table of Contents Index Adjustments
Figure 80
Terra-Tine Twin-Arm and
Single-Arm with Extension
26060
26061
2
1
5
4
3
3
1
231
4
6
7
8
9
9
8
5
5
Figure 81
Terra-Tine / Coulter Hub Positioning
13469
67895
Frame-Mounted Row Accessories
Terra-Tine™ Adjustments
Refer to Figure 80 through Figure 82
All adjustments must be made with the planter in the
fully raised position.
Equipment Damage Risk:
Be sure to check that the Terra-Tine Row Cleaner tines DO
NOT touch the coulter blade or any other attachments. Such
contacts will cause excess wear to all parts involved. At least
3
/8in (13mm) clearance is recommended.
1. When the blade is out of the soil, adjust the
Terra-Tine lock collar height to set the height of
tine fingers flush with the bottom of coulter blade.
2. For side-to-side alignment, rotate the shank mount
around the vertical shaft and tighten the square
head set screw (set screws not visible in twin-row
illustration).
3. If tines are found to be rolling over, rather than
moving trash, spring tension can be increased.
See the Terra-Tine manual for details.
Using Terra-Tines with Coulters
Refer to Figure 80 and Figure 81
Tines may be set ahead of, behind , and to the
right or left of frame-mounted coulters.
4. Fore-to-aft adjustment is accomplished by adding or
removing the extension arm to place the
Terra-Tine Row Cleaner to either side of the coulter
hub depending on the desired position or clearance
between other attachments. Testing has shown
better performance behind the hub, but available
space may dictate the mounting position.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 68
Page 73
YP2425A Table of Contents Index Adjustments
4
Figure 82
Frame-Mount Coulter
25392
1
3
2
12123
4
Figure 83
Vantage I Applicator
22951
3
2
1
123
Frame-Mounted Coulter Adjustments
Refer to Figure 82
Frame-mounted coulters may be run on-row or between
rows.
On-Row
If run on-row, or within 2 in. (5.1cm) of the furrow, adjust
the shaft to set the coulter depth to be the planting
depth or
Between Row (or Off-Row at least 2 in.)
At the shaft , adjust the coulter depth for a running
depth of 4 to 4
level . Refer to the Vantage I manual (204-376M) for
further adjustments.
Do not adjust the spring tension. It is factory pre-set.
1
/4inch (6 mm) shallower.
3
/8inch (10.1-11.4 cm) below ground
Vantage I Fertilizer Adjustments
Refer to Figure 83
At the back plate , adjust the tine height for a running
depth of 1in (2.5cm) below ground level . Refer to
the Vantage I manual (204-376M) for further
adjustments.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 69
Page 74
YP2425A Table of Contents Index Adjustments
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
Figure 84
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 84
(which depicts a row unit populated with most
optional accessories supported for use with the
YP2425A planter)
From front to back, a Great Plains 25 Series 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. Meter Pressurization Air Inlet (Standard)
Pressure-regulated air enters the meter here and
holds seed in the disk pockets. See “Fan and Meter
Pressurization 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
See “Air-Pro
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.
11. Unit-Mount Coulter (Option)
Coulters cut remaining trash and begin opening the
seed furrow. Working depth is set by row depth and
®
Seed Meter (Standard, Choice of Disks)
® Meter Disk Installation
” on page 81.
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.
®
shown) minimizes
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 70
Page 75
YP2425A Table of Contents Index Adjustments
Figure 85
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 86
Assessing Down-force
1
2
3
Figure 87
25 Series Row Unit Springs
29600
1
1
Row Unit Down Pressure
Refer to Figure 85
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 86
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 87
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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 71
Page 76
YP2425A Table of Contents Index Adjustments
Figure 88
25AP Series Row Unit
Spring Adjustment
29605
3
5
2
2
Cam Notch Pounds Kilograms
zero (out of notch) Lock-Up & Maintenance
one 330 150
two 355 160
three 385 175
four 435 200
five 485 220
six 535 245
tip Do Not Use
34133
Figure 89
Row Unit Minimum Cam (at 1)
27065
bottom
4
6
3
Figure 90
Row Unit Maximum Cam (at 6)
27065
top
4
526
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 89
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 88 (shown at cam setting 2),
Figure 89 and Figure 90
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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 72
Page 77
YP2425A Table of Contents Index Adjustments
Sharp Object Hazard:
Wear hand protection when working in this area. Row cleaner
tines, casting edges and coulter blades are sharp.
Figure 91
UMRC: Cleaner Adjust
27308
3
2
1
365
Figure 92
UMC-RC: Row Cleaner Adjust
27343
6
4
5
52132
6
4
5
Unit-Mount Cleaner Adjustments
Refer to Figure 91 and Figure 92
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).
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 73
Page 78
YP2425A Table of Contents Index Adjustments
Figure 93
25 Series Unit-Mounted Coulter
29124
7
Figure 94
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 93 and Figure 94
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 x 4 inch bolt, lock washer and nut
( in Figure 93).
5. Move the blade to the new position. Insert the bolt,
and tighten on the lock washer and nut.
1
/4in. (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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 74
Page 79
YP2425A Table of Contents Index Adjustments
Figure 95
25 Series Coulter Alignment
26125
1
2
3
123
Figure 96
25 Series Coulter Mount
26126
4
4
Coulter Row Alignment
Refer to Figure 95
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 96
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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 75
Page 80
YP2425A Table of Contents Index Adjustments
Figure 97
Opener Adjustments
29600
2
3
1
111
1
Figure 98
Opener Disc Contact Region
26127
4
5
4
Figure 99
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 76)
Setting Planting Depth
Refer to Figure 97
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 98
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
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 98 and Figure 99
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.
3
/8in. (3.8 cm) of each other. If zero, the
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 76
Page 81
YP2425A Table of Contents Index Adjustments
Figure 100
Disk/Gauge Wheel Alignment
Incorrect
Correct
Side Gauge
Wheel
Opener
Disks
Side Gauge
Wheel
Figure 101
Opener-Gauge Wheel Contact
22531
Contact Within this Area
Figure 102
Checking Wheel/Disc Contact
26129
12241
Side Gauge Wheel Adjustment
Refer to Figure 100 and Figure 102
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 101
For 2in (5.1cm) 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 103 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
bushing and shank.
5. Check wheel-to-disk contact at 2 inches (5.1 cm)
planting depth, as shown in Figure 102. 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
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 77
where blade leaves contact with soil, move hex
adjuster until wheel is angled for proper contact with
disk.
Page 82
YP2425A Table of Contents Index Adjustments
Starting Point
Figure 103
Disk/Gauge Wheel Adjustment
22524
22525
2
2
1
4
4
1
112
8
Figure 104
Gauge Wheel Scraper
25273
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:
torque: 75 foot-pounds (102 N•m).
3
/8inch Grade 8 bolt on 25 series:
torque: 110 foot-pounds (149 N•m).
Use “Torque Values Chart” on page 154 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 104
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 .
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 78
Page 83
YP2425A Table of Contents Index Adjustments
Figure 105
Rain Cover Removal
29606
1
2
3
123
Figure 106
Seed Inlet Shutter
29607
0
5
|
II
III
||||
Setting Setting Typically Used For
Top (0) Closed: Row Shut-Off, Meter Refill
| (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 105
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 106 (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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 79
Page 84
YP2425A Table of Contents Index Adjustments
Figure 107
Milo: Seed Inlet Shutter at: 1
29602
1
8:00
1
Figure 108
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 ongoing skips.
Figure 109
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 107
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 108 and Figure 109
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 earlier in the seed flow. It may be bridging
at the air release screen at the top of the meter. Close
the shutter completely for about 15 seconds. This
prevents pressurization air from opposing seed delivery
air. 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, reset the
shutters to the next higher opening.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 80
Page 85
YP2425A Table of Contents Index Adjustments
Figure 110
Disk Removed From Meter
29608
2
1
1
2
Figure 111
Disk on Clamp and Seat
29611
3
1
4
1
3
Figure 112
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 110 (depicting an empty meter)
4. Inspect meter (see page 102 for details).
5. Make sure clamp is aligned with seat .
Refer to Figure 111
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 monitor console, select the new Material,
seed disk Cell Count, and target population.
10. Reinstall rain cover (page 79).
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 81
7
/8inch open-end wrench.
Page 86
YP2425A Table of Contents Index Adjustments
Figure 113
Remove Disk
29611
3
1
4
4
1
2
Figure 114
Seed Inlet Shutter Closed
29609
2
1
Removing a Seed Disk
Refer to Figure 113
1. Remove rain cover. If seed is present, close
shutter to prevent more seed from entering meter.
Attach funnel (page 100).
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 110 page 81), so that new disks can seat fully.
Inspect brushes for excess wear and damage. See
“Meter Brush Maintenance” on page 102.
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 104.
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 61).
7. Reset monitor active row pattern and row spacing to
avoid nuisance alarms (always done).
Meter drive is not disabled on 25AP row units during
shut-off.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 82
Page 87
YP2425A 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 115
Shutter Closed, Blank Disk Installed
29610
2
1
Figure 116
Y-Tube Open and Closed
29758
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.
2. Close Seed Shutter
Refer to Figure 114 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 115
Clean out meter. See “Meter Clean-Out” on page 100.
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 116
If any shut-off rows are served by a Y-tube, close the
gate 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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 83
Page 88
YP2425A Table of Contents Index Adjustments
Figure 117
25AP Row Unit Lock-Up Pin
25269
29600
1
2
3
4
5
123
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 118
25AP Row Unit Locked Up
29756
3
452
3
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 117
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.
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 118
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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 84
Page 89
YP2425A Table of Contents Index Adjustments
Figure 119
Keeton
®
Seed Firmer
28316
1
1
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 120
Seed-Lok
®
Lock-Up
31543
2
3
1
4
2
3
5
6
123145614
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 119
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 120 (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 until lever stop is
lock-up handle .
4. Push up on Seed-Lok
latches up .
To release a locked-up Seed-Lok
1. Insert a
1
/4in tool drive tip in the tool hole of the
®
wheel until wheel arm
®
:
handle . Alternatively, lift up on the wheel .
2. Rotate the handle clockwise (handle arm up) until
the Seed-Lok
and falls free.
®
wheel releases at the latch point
®
Seed Firmer,
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 85
Page 90
YP2425A Table of Contents Index Adjustments
2
2
Figure 121
Seed-Lok
®
Lock-Up (older style)
22909
2
3
1
2
3
Figure 122
Press Wheel Adjustments
25118
1
3
2
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 Keeton
®
Seed Firmer Lock-Up (older style)
®
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 120
To lock up Keeton
®
wheels:
1. Raise planter. Insert lift assist cylinder locks.
2. Rotate Keeton
®
lock-up handle 90 degrees down
on top of row unit body.
3. Push up on Keeton
®
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 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:
Refer to Figure 122
1. Down pressure (shown at maximum)
2. Wheel stagger (shown staggered)
3. Centering (see Figure 124 on page 87)
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 86
Page 91
YP2425A Table of Contents Index Adjustments
Figure 123
Press Wheel Force & Stagger
22907
1
8
7
6
5
3
4
2
1
1
456
878
2
Figure 124
Press Wheel Centering
(View from beneath opener)
25277
3
2
1
4
1234323
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.
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.
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 123
1. Raise the planter and install the lift assist cylinder
locks. See “Lift Cylinder Lock-Up” on page 32.
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 124
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 Cylinder Lock-Up” on page 32.
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 .
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
/8inch hex-head bolts and .
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 87
Page 92
YP2425A 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
See also “Row-Pro™ Troubleshooting” on page 166.
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
/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.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 88
Page 93
YP2425A Table of Contents Index Troubleshooting
Figure 125
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 90).
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 90).
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
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 89
Page 94
YP2425A Table of Contents Index Troubleshooting
Figure 126
Seed Pool Recovery
29744
1
2
3
4
5
1
2
345
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 126 (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.
6. Start or resume planting.
29744
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 90
Page 95
YP2425A 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 Meter Pressurization 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 | 401-626M | 2019-06-11 Table of Contents Index 91
Clutch slipping, due to contaminants in clutch, or
wear
Skipping chain from drive to section
Perform speed radar calibration per DICKEY-john® monitor
manual. See page 155.
With planter lowered, check radar speed sensor angle per
DICKEY-john
Check marker extension (page 61).
For GPS, check planter size programmed.
Lock-up clutch (page 41) until it can be overhauled or
replaced
Check chain slack.
Replace worn chain.
®
recommendations.
Page 96
YP2425A 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 101).
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 111).
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
Meter Pressurization 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
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. See
page 155.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 92
Page 97
YP2425A Table of Contents Index Troubleshooting
Problem Cause Solution
Overall High
Population
(cont.)
High
Population,
Single Row
Problem Cause Solution
Overall
Population
Alarms
Doubles due to incorrect disk for crop or
seed size
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
Use recommended disk for crop and seed size.
With planter lowered, check radar speed sensor angle per
DICKEY-john
Perform speed calibration per DICKEY-john® monitor manual.
Check marker extension (page 61).
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
Check speed sensor on planter for 1/16inch to 1/8inch
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
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 the
(1.6-3.2 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
seeds. For example, change the DICKEY-john
Adjustment values from 100% to 130% or 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 139).
If sufficient:
®
monitor system to compensate for missed
• Fold markers before engaging lift.
• Use a less aggressive lift rate.
• Monitor fan rpm during end-of-pass operations.
®
Population
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 93
Page 98
YP2425A Table of Contents Index Troubleshooting
Problem Cause Solution
Unable to adjust
air pressure low
enough.
Seed too shallow
Lower limit reached in DICKEY-john®
software.
Fan speed too high, vane rotated to
maximum.
Bottom of seed tube damaged.
or scattered on
ground from a
single row
Twin Rows were
timed but
became out of
time.
Row not penetrating in tire tracks. Increase down force on parallel arm springs.
Opener depth too shallow. Change side depth wheel setting.
Timing will change when a population
change has been made.
Chain has jumped.
System is unable
to automatically
control air meter
Signal from air pressure sensor lost.
(failed sensor or wiring)
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.
At User Level 2, reduce the controlled air lower limit in the
software.
Reduce the fan speed.
Replace seed tube. Avoid setting planter straight down. Use
forward motion when lowering.
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
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.
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.
®
Planter/Drill Control manual, User Level 2/3.
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).
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 also
Foreign matter in seed chamber in
bottom of airbox.
Clean out seed chamber.
move from one outlet
to another.
Little or no seed to a lot of
Seed treatment sticky.
rows with heavily treated
seed.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 94
Treatment mixed unevenly and
plugging outlets.
Add Ezee Glide Plus to seed to dry out seed
treatment.
Clean out seed. Re-mix.
Page 99
YP2425A 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 91.
See “Population Troubleshooting Charts” on page 91.
Field size different. After ruling out population problems, re-check geography.
Excessive gaps between planter
passes.
See “Population Troubleshooting Charts” on page 91.
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 91.
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 85.
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 26
Air in lines Bleed fold circuit, refer to page 107
Adjust marker, page 61.
Adjust marker, page 61.
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 126).
See “Row-unit discs not turning freely” in this Troubleshooting
chart.
Check and replace any worn/rusted sprockets or chain idlers.
See “Seed Lubricants” on page 124.
Uneven seed
depth
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 95
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.
Page 100
YP2425A Table of Contents Index Troubleshooting
Problem Cause Solution
Press wheel or
row-units
plugging
Row-unit discs
not turning
freely
Press wheels
not
compacting
the soil as
desired.
Seed blowing
out of bulk box
door area
Air lines
plugging
between air
box and Y
splitters
Air lines
plugging
between Y-tube
and meter
Planting conditions too wet. Wait until drier weather.
Too much pressure on row-units. Reduce down pressure on row-units.
Coulters set too deep, bring up excess
dirt and moisture.
Planter not set to run level from front to
rear.
Backed up with planter in the ground. Clean out and check for damage.
Failed disc bearings. Replace disc bearings.
Disc blades worn. Replace disc blades.
Scraper worn or damaged. Side depth
wheels not set correctly.
Row-unit plugged with dirt. Clean row-unit.
Planting conditions too wet. Wait until drier weather.
Incorrect side depth wheel adjustment See “Side Gauge Wheel Adjustment” on page 77.
Seed-Lok® is plugging row-unit. Lock up Seed-Lok®, page 86.
Failed disc bearings. Replace disc bearings.
Bent or twisted row-unit frame. Replace row-unit frame.
Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out.
Incorrect spring handle setting See “Press Wheel Adjustment” on page 86.
Insufficient row unit down-force See “Row Unit Down Pressure” on page 71.
Use of incorrectly shaped tire for your
conditions.
Not level front to rear. Check tongue height.
Wheel stagger needs adjustment for
conditions
Too wet or cloddy Wait until drier weather or rework ground.
Fan too fast. Slow down fan.
Seal from airbox to hopper damaged or
not adjusted.
Fan too slow. Speed up fan.
Air leaks between air box manifold and
splitters
Improper hose routing, sags or kinks
Sag or kink in air hose.
Meter is shut off but Y-tube is open. Shut off Y-tube.
Air tube assembly not positioned on
correct tab.
Sag in air hose due to incorrect frame
height
Check coulter adjustment.
Check tongue height page 22
Adjust side depth wheels page.
Wedge shaped wheels work best on narrow spacings and in wet
conditions. Round edge wheels work best in wider row spacings
and drier conditions.
See “Press Wheel Adjustment” on page 86.
Inspect and adjust seal. Seal should be intact, and compress to
3
/8in. (13mm) under seed container.
about
Check for leaks and correct as needed.
With planter unfolded, hoses should for a gentle “S” shape through
the holders, with no deep sags.
Check air tube placement in tube mount weldment. If correct,
shorten any hose that has stretched due to age.
Move assembly to properly position Y-tubes over row meters.
Raise or lower the tongue so center portion of frame is level with
gauge wheel area.
Great Plains | 401-626M | 2019-06-11 Table of Contents Index 96
Loading...