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 show similar pull-type models and their options.
Great Plains Manufacturing, Inc. provides this publication“as is” without warrantyofanykind,eithere xpressedorimplied.Whilee v eryprecaution has been
takeninthe preparation of this manual, Great Plains Manufacturing,Inc. assumes no responsibility forerrors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein. Great Plains Manufacturing,Inc. reserves the rightto 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.
2013-05-28CoverIndex401-652M
Trademarks of Great Plains Manufacturing, Inc. include: Singulator Plus, Swath Command, Terra-Tine.
Registered Trademarks of Great Plains Manufacturing, Inc. include:
Index ..........................................................................119
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Great Plains Manufacturing, Inc.Table of ContentsIndex1
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 wordis 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”onpage6,
thoroughly.
▲ Read all instructions noted on the decals.
▲ Keep decals clean. Replace damaged, faded and illegible
decals.
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Wear Protective Equipment
Great Plains advises use of the following personal safety
equipment.
▲ Hearing protection, such as earmuffs or earplugs, for
making planter adjustments with the hydraulic fan
running.Prolonged exposure to loud noise can cause
hearing impairment or loss.
Avoid wearing entertainment headphones while operating
machinery. Operating equipment safely requires the full
attention of the operator.
▲ Face shield, goggles or full face respirator when handling
treated seed, seed lubricants or seed treatment.
▲ Gloves for working near sharp objects, and for handing
lubricants or treatments.
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the skin,
causing serious injury. This planter requires a
Power-Beyond port, which is always under pressure
when the tractor is running.
▲ Avoidthe hazard by relieving pressure at other remotes, and
shutting down tractor before connecting, disconnecting or
inspecting hydraulic lines.
▲ Use a piece of paper or cardboard, NOT BODY PARTS, to
check for suspected leaks.
▲ Wear protective gloves and safety glasses or goggles when
working with hydraulic systems.
▲ If an accident occurs, seek immediate medical assistance
from a physician familiar with this type of injury.
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.
Use Safety Lights and Devices
Slow-moving tractors and towed implements can create
a hazard when driven on public roads. They are difficult
to see, especially at night.
▲ Use flashing warning lights and turn signals whenever
driving on public roads.
▲ Use lights and devices provided with implement.
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Great Plains Manufacturing, Inc.Table of ContentsIndexImportant Safety Information3
Transport Machinery Safely
Maximum transport speed for implement is 20 mph (32
kph), 13 mph (22 kph) in turns. Some rough terrains
require a slower speed. Sudden braking can cause a
towed load to swerve and upset.
▲ Do not exceed 20 mph. 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 using a tractor with insufficient
ballast.
▲ 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 96.
▲ Do not fold or unfold the planter while the tractor is
moving.
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4YP4-6-825A3PTable of ContentsIndexGreat Plains Manufacturing, Inc.
Handle Chemicals Properly
Agricultural chemicals can be dangerous. Improper use
can seriously injure persons, animals, plants, soil and
property.
▲ Read and follow chemical supplier instructions.
▲ Wear protective clothing.
▲ Handle all chemicals with care.
▲ Agricultural chemicals can be dangerous. Improper use can
seriously injure persons, animals, plants, soil and property.
▲ Inhaling smoke from any type of chemical fire is a serious
health hazard.
▲ Store or dispose of unused chemicals as specified by the
chemical manufacturer.
▲ If chemical is swallowed, carefully follow the chemical
manufacturer’s recommendations and consult with a doctor.
▲ If persons are exposed to a chemical in a way that could
affect their health, consult a doctor immediately with the
chemical label or container in hand. Any delay could cause
serious illness or death.
▲ Dispose of empty chemical containers properly. By law
rinsing of the used chemical container must be repeated
three times. Puncture the container to preventfuture use. An
alternative is to jet-rinse or pressure rinse the container.
▲ Wash hands and face before eating after working with
chemicals. Shower as soon as application is completed for
the day.
▲ Apply only with acceptable wind conditions. Wind speed
must be below 5 mph. Make sure wind drift of chemicals
will not affect any surrounding land, people or animals.
▲ Never wash out a hopper within 100 feet of any freshwater
source or in a car wash.
Shutdown and Storage
▲ Lower planter, put tractor in park, turn off engine, and
remove the key.
▲ Secure planter using blocks and supports provided.
▲ Detach and store planter in an area where children
normally do not play.
Tire Safety
Tire changing can be dangerous. Employ 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.
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Great Plains Manufacturing, Inc.Table of ContentsIndexImportant Safety Information5
Practice Safe Maintenance
▲ Understand procedure before doing work. Use proper
tools and equipment. Refer to this manual for additional
information.
▲ Work in a clean, dry area.
▲ Lower the planter, put tractor in park, turn off engine, and
remove key before performing maintenance.
▲ Make sure all moving parts have stopped and all system
pressure is relieved.
▲ Allow planter to cool completely.
▲ Disconnect battery ground cable (-) before servicing or
adjusting electrical systems or before welding on planter.
▲ Inspect all parts. Make sure parts are in good condition
and installed properly.
▲ Remove buildup of grease, oil or debris.
▲ Remove all tools and unused parts from planter before
operation.
Safety At All Times
Thoroughly read and understand the instructions in this
manual before operation. Read all instructions noted on
the safety decals.
▲ Be familiar with all planter functions.
▲ Operate machinery from the driver’s seat only.
▲ Do not leave planter unattended with tractor engine
running.
▲ Do not stand between the tractor and planter during
hitching.
▲ Keep hands, feet and clothing away from power-driven
parts.
▲ Wear snug-fitting clothing to avoid entanglement with
moving parts.
▲ Watch out for wires, trees, etc., when folding and raising
planter. Make sure all persons are clear of working area.
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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.
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.
31026
818-055C
Slow Moving Vehicle Reflector
On the tube supporting meter pressurization manifold;
1 total
838-266C
Red Reflectors
On the back of end seed hoppers
(rear seed hoppers on twin-row planters)
and on the back of the inner marker arm (option),
above daytime reflector:
2 or 4 total
31003
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Great Plains Manufacturing, Inc.Table of ContentsIndexImportant Safety Information7
838-265C
Amber Reflectors
On the front face of the front tool bar, each end,
on the outside of the end hopper supports
4 total
31003
838-267C
Daytime Reflectors
On the back of two center seed hoppers
(rear seed hoppers on twin-row planters) and
on the back of the inner marker arm (option),
below red reflector:
2 or 4 total
31003
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818-323C
Danger: Possible Chemical Hazard
On the underside of each hopper lid;
4 to 16 total
29998
818-337C
Warning: Speed
On front of main tool bar to left of hitch;
1 total
818-339C
Warning: High Pressure Fluid Hazard
On right face of 3-point top hitch; 1 total
818-525C
Warning: Sharp Object (Option)
Front face of each row cleaner frame;
4 to 12 total
31003
31003
27333
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Great Plains Manufacturing, Inc.Table of ContentsIndexImportant Safety Information9
818-682C
Warning: Markers (Option)
On front face of inner marker arm;
2 total
31003
818-587C
Caution: Read Operator’s Manual
On right face of 3-point top hitch; 1 total
CAUTION
To Avoid Injury or Machine Damage from Improper Tire
Inflation or Torquing of Wheel Bolts:
Maximum inflation pressure of tires is 90 psi.
Torque wheel bolts to 120 lb-ft.
838-595C
Caution: Tire Pressure and Bolt Torque
on valve stem side of each wheel;
2 or 4 total
838-595C
29960
29880
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10YP4-6-825A3PTable of ContentsIndexGreat Plains Manufacturing, Inc.
Introduction
Great Plains welcomes you to its growing family of new
product owners. The 4-, 6- and 8-Row 3-Point Yield-Pro
Air Planter (YP425A3P, YP625A3P & YP825A3P) has
been designed with care and built by skilled workers
using quality materials. Proper setup, maintenance, and
safe operating practices will help you get years of
satisfactory use from the machine.
The YP4-6-825A3P Planter is a three-point precision
planting implement for use in conventional till,
minimum-till, or light no-till conditions. The
YP4-6-825A3P accepts unit-mounted coulters and/or
row cleaners. Coulters make it suitable for light to
moderate no-till conditions only. The YP4-6-825A3P
includes 25AP Series openers with Air-Pro® meters
supporting a wide choice of seed disks.
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.
®
R
F
R
L
Figure 1
YP425A3P/625A3P/825A3P Planter
Intended Usage
Use the YP4-6-825A3P 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
YP4-6-825A3P.
The following terms are used throughout this manual.
A crucial point of information related to the pr eceding topic.
Read and follow the directions to r emain safe , avoid serious
damage to equipment and ensure desired f ield results.
Note: Useful information related to the preceding topic.
Right-hand and left-hand as used in
this manual are determined by facing
the direction the machine will travel
while in use unless otherwise stated.
An orientation rose in some line art
illustrations shows the directions of:
Up, Back, Left, Down, Front, Right.
R
F
U
B
L
D
29997
U
B
L
D
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Great Plains Manufacturing, Inc.Table of ContentsIndexIntroduction11
Owner Assistance
If you need customer service or repair parts, contact a
Great Plains dealer. They have trained personnel, repair
parts and equipment specially designed for Great Plains
products.
Refer to Figure 2
Your machine’s parts were specially designed and
should only be replaced with Great Plains parts. Always
use the serial and model number when ordering parts
from your Great Plains dealer.The serial-number plate is
located on the right end of the rear face of the main tool
bar.
Record your YP4-6-825A3P Planter model and serial
number here for quick reference:
Model Number:__________________________
Serial Number: __________________________
Your Great Plains dealer wants you to be satisfied with
your new machine. If you do not understand any part of
this manual or are not satisfied with the servicereceived,
please take the following actions.
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.
Figure 2
Serial Number Plate
For further assistance write to:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
31027
785-823-3276
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Preparation and Setup
This section helps you prepare your tractor and
YP425A3P, YP625A3P & YP825A3P Planter for use, and
covers tasks that need to be done seasonally, or when
the tractor/planter configuration changes.
Before using the planter in the field, you must hitch it to a
suitable tractor, inspect systems and level the planter.
Beforeusing the planter for the first time, and periodically
thereafter, certain adjustments and calibrations are
required.
Initial Setup
See “Appendix B - Pre-Delivery” on page 110 for
pre-delivery items (normally completed by dealer), and
first-time/infrequent setup tasks, including:
• Install seed monitor console in tractor (page 112).
• Set marker extension (Option, page 114).
• Install any Options not factory- or dealer-installed.
Post-Delivery/Seasonal Setup
On initial delivery, use with a new tractor, and seasonally,
check and as necessary, complete these items before
continuing to the routine setup items:
• Bleed hydraulic system (page 80).
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 grease fittings are in place and
lubricated. See “Lubrication” on page 85.
❑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 “Torque ValuesChart” on page 102.
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Great Plains Manufacturing, Inc.Table of ContentsIndexPreparation and Setup13
Hitching Tractor to Planter
Crushing Hazard:
Do not stand or place any body part between planter and
moving tractor. You may be severely injured or killed by being
crushed between the tractor and planter. Stop tractor engine
and set parking brake before attaching cables and hoses.
1. To prevent soil compaction on rows, set tractor
wheels at 60 inches center-to-center. For hillsides
and steep slopes, set tractor wheels as wide as
possible for maximum stability.
2. Adjust tractor lower links to maximize lifting height.
3. Set tractor sway blocks to minimize side sway. Set
tractor hitch lift control to Float.
4. Back tractor up to planter. Align lower links with the
lower hitch clevis on planter. Adjust hitch bushings
and spacerssupplied with planter according to the
category of your tractor. Lock pins in place.
5. Attach tractor top link to upper hitch clevis on planter.
2
1
3
• For Category II tractors, hitch tractor top link to
lower hole pair in planter clevis.
• For Category II quick couplers and Category III
tractors, hitch tractor top link to center hole pair in
planter clevis.
3
Electrical Hookup
Refer to Figure 4
Your planter is equipped with systems that require
separate electrical connections. For future reference,
note any optional connectors on this checklist.
Make sure tractor is shut down with accessory power off
before making connections.
These connections may be made in any order. The key
requirement is that all connections be made prior to
planter movement.
1
2
Three Point Hitch
Figure 3
31048
1
2
Figure 4
Connector Identification
25236
31033
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Hydraulic Hose Hookup
High Pressure Fluid Hazard:
Shut down tractor before making hydraulic connections.
Only trained personnel should work with system hydraulics.
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. If an accident
occurs, seek immediate medical assistance from a physician
familiar with this type of injury.
Use paper or cardboard, NOT BODY PARTS, to check for
leaks. Wear protective gloves and safety glasses or goggles
when working with hydraulic systems.
Refer to Figure 5
Great Plains hydraulic hoses have color coded handle
grips to help you hookup hoses to your tractor outlets.
Hoses that go to the same remote valve are marked with
the same color.
Current Style Color Coded Hose Handles
ColorHydraulic Function
GreenMarker
BlackFan
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 feeds cylinder
rod ends.
For hydraulic fan and drive motors, connect the hose
under the retracted cylinder symbol to the pressure side
of the motor. Connect the hose under the extended
cylinder symbol to the return side of the motor.
The fan motor further requires hookup of a third line,
which returns hydraulic fluid from the fan motor case.
Figure 5
Color Coded Hose Handles
31733
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Great Plains Manufacturing, Inc.Table of ContentsIndexPreparation and Setup15
Older Style Hoses with Color Ties
Refer to Figure 6 and Figure 7 on page 16
Hydraulic hoses are color coded to help you hookup
hoses to your tractor outlets. Hoses that go to the same
remote valve are marked with the same color tie.
ColorHydraulic Function
OrangeMarker
WhiteFan
To distinguish hoses on the same hydraulic circuit, refer
to hose label.
• The fan motor case drain line is a separate hose with
no label plate. This hose is always connected first and
disconnected last.
• The hose under an extended-cylinder symbol feeds a
cylinder base end or motor return line.
• The hose under a retracted-cylinder symbol feeds a
cylinder rod end, or motor pressure line.
Secure hoses and cables so that they have sufficient
slack for hitch movements, but cannot get caught
between moving parts of planter. Failure to safely route
and secure hoses and cables could result in damage
requiring component repair/replacement, and lost field
time.
Make connections in a specific order, described on the
next page.
Figure 6
Older Style Hoses with Label
27270
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”.
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Protect Motor Seals
Applies to planters with serial numbers:
making any other connections. Connect this line to a
low pressure drain port.
1
Note: Case drain hose has the smaller
⁄4inch I.D. hose
and small, flat-face, low-seep connector.
2. Connect the fan return line second.
2
Note: Fan pressure return hose has a large (1.06 inch/
2.7 cm diameter) quick coupler.
3. Connect the fan motor pressure hose third. If the
3
tractor has a priority remote, use it for the fan
connection.
4. Make marker (option) connections.
Machine Damage Risk:
DO NOT connect the fan case drain line to a
power-beyond-port. Case Drain Hose must be attached first,
prior to inlet and return hoses being connected. Case Drain
Hose must be detached last, to prevent damage to the fan
motor.
Applies to planters with serial numbers:
(YP3P425A s/n B1005M+)
(YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+)
For complete instructions see “Fan Circuit Operation
(S/N+)” on page 30.
1. Connect the motor return line, to remote circuit
3
return (Extend port) or to sump.
2. Connect the motor inlet line to a tractor remote
4
capable of 20 liters per minute. If a priority remote is
available, use it for the fan.
2
3
1
Figure 7
Fan Hoses (S/N-)
29781
3
4
Figure 8
31886
Fan Hoses (S/N+)
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Great Plains Manufacturing, Inc.Table of ContentsIndexPreparation and Setup17
Raise Parking Stands
Refer to Figure 3
3. Use tractor hitch circuit to raise planter slightly off
parking stands.
4. Remove hairpin and cross-pin.
5. Slide stand tube up until lower storage holealigns
with bracket hole.
6. Insert cross-pin and secure with hairpin.
7. Repeat for other side of planter.
1
2
1
2
Figure 9
Parking Stand
31049
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Leveling Planter
For row units to function correctly, planter must be:
• level from side to side,
• level from front to back, and;
• at correct tool bar height.
Perform this setup on level ground in representative field
conditions.
Refer to Figure 10
1. Raise planter so that gauge wheels are just off
ground.
2. At each gauge wheel, measure the pre-compressed,
no-load length of the yoke spring.
1
All axles should be in the same (upper or lower) arm
holes. All springs should have this same length. Note
this length for step 9.
1
See page 45 for factory setting, and adjustments for
local conditions.
3. Check tire pressures of gauge wheels. As
necessary, inflate to specifications (page 102).
Refer to Figure 11
4. Measure height from bottom of main tool bar to
2
ground, at each end. If this dimension differs by
more than1⁄2inch (6.4 mm) at each end, adjust
lower links of tractor to level side-to-side.
Note the current height for step 7, and what lowering
would be required to make that 26 inch (66 cm).
5. Check front-to-back level at top of main tool bar. If
unlevel, adjust top of tractor three-point to level.
6. Pull forward slowly, and lower the planter to
approximately 26 inch (66 cm). Stop the tractor and
set the parking brake.
7. Check the tool bar height. Adjust the hitch height
2
until it is 26 inch. If available, set a hitch stop control
to capture this height.
8. Check that the row units are running level with the
ground.
9. Check that the gauge wheels are all in solid ground
contact, tires slightly compressed, and that the
springs are slightly compressed from the length
checked at step 2.
Hitch configuration during planting can vary between
tractor models, and due to field conditions. Great Plains
recommends starting with the hitch set to Float or
Position/Depth Control (and not Load or Draft Control).
Figure 10
31053
Gauge Wheel Yoke
2
Figure 11
Tool Bar Height and Leveling
31051
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Great Plains Manufacturing, Inc.Table of ContentsIndexPreparation and Setup19
Monitor Setup
Refer to Figure 19
The standard DICKEY-john® PM300 system monitors
the following elements of a YP4-6-825A3P planter:
• Seeds at each row unit seed tube.
• Ground speed.
See “Seed Monitor Console Installation” on page 112.
Refer to the DICKEY-john® PM300/PM332/PM400
Operator’s Manual for monitor operations.
After installation, and prior to first field use, the monitor
must be setup with the row spacing and speed sensor
constant, as well as your preferences for information
display. Row count is auto-assigned, but any other
factory defaults are not likely to be correct for your
planter.
Row spacing data may be found in the Appendix.
For speed setup, Great Plains recommends using the
400-foot calibration described in the DICKEY-john
manual, rather than using a theoretical “# of pulses”.
Perform the calibration run in representative field
conditions, as soil conditions, surface looseness and
other tillage practices can cause variations in the
effective rolling radius of the ground drive wheel.
Prior to each planting session, set any desired limits for
speed and population for the current crop.
®
Figure 12
Monitor Primary Screen
29971
Marker Setup (Option)
Prior to first use, check and adjust:
•“Marker Speed Adjustment” on page 113.
Prior to first use, and whenever changing row spacings,
set or reset:
•“Marker Extension” on page 114.
Prior to each planting session, check and adjust:
•“Marker Disk Adjustment” on page 42.
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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
YP4-6-825A3P planter to the field.
❑Carefully read “Important Safety Information” on
page 1.
❑Install seed disks appropriate for crop. See
“Air-Pro® Meter Disk Installation” on page 57.
❑Lubricate planter as indicated under “Lubrication”
on page 85.
❑Check all tires for proper inflation. See “Torque
Values Chart” on page 102.
❑Check all bolts, pins, and fasteners. Torque as
shown in “Torque Values Chart” on page 102.
❑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.
High Pressure Fluid Hazard:
Relieve pressure and shut down tractor before connecting,
disconnecting or checking hydraulic lines. Use a piece of
paper or cardboard, NOT BODY PARTS, to check for leaks.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems. Escaping fluid under pressure
can have sufficient pressure to penetrate the skin causing
serious injury. If an accident occurs, seek immediate medical
assistance from a physician familiar with this type of injury.
Raising/Lowering Planter
The planter is raised and lowered using the tractor
3-point hitch.
In field conditions, drive forward while lowering openers
into ground. Never back up with openers in ground.
Hitch configuration during planting can vary between
tractor models, and due to field conditions. Great Plains
recommends starting with the hitch set to Float or
Position/Depth Control (and not Load or Draft Control).
Machine Damage Risks:
Always fold markers (page 33) before raising or lowering.
Always raise the planter for any reverse/backing.
Except on pavement, begin forward motion beforelowering, as
rows move backward slightly as arms swing up.
401-652MTable of ContentsIndex2013-05-28
Great Plains Manufacturing, Inc.Table of ContentsIndexOperating Instructions21
Transport
Loss of Control Hazard:
Do not transport with insufficient ballast or with an
inadequate tractor.
Check that your tractor has enough ballast for the weight of
the drill. A tractor with insufficient ballast has insufficient
traction at the front wheels, causing loss of control, leading to
a serious road accident, injury or death. Refer to your tractor
operator manual for ballast requirements.
Check that tractor is rated for the fully-ballasted load. An
inadequate tractor may be damaged by over-loading. It is also
at risk for loss of control in turns and braking, leading to a
serious road accident, injury or death.
The planter can weigh nearly 11,000 pounds (5000 kg),
depending on configuration and seed load. The tractor
MUST be rated and ballasted for the load. Do not tow if
planter exceeds the load rating of the vehicle. See tables
on next page for typical configuration weights.
Transport Steps
Transport only with markers stowed (page 33).
1. Check that planter is securely hitched to a sufficient
tractor (page 13).
2. Verify correct operation of lights.
3. Fold markers if unfolded (Option, page 33).
4. Raise planter (page 20).
Increased Hazards and Wear Risks:
Seed may be loaded prior to travel, but increases stopping
distance, increases the need for caution in turns and braking,
and increases tire wear.
5. If any seed is in hoppers or delivery hoses, close
seed inlet shutters at meters (page 58).
6. Plan the route. Avoid steep hills.
7. Always have lights on for highway operation.
8. Do not exceed 32 kph (20 mph). Comply with all
national, regional and local laws when traveling on
public roads.
9. Remember that the planter may be wider than the
tractor. Allow safe clearance.
10. Transport slowly over uneven or rough terrain.
Braking and Loss of Control Hazard:
Do not exceed 20 mph (32 kph)..
2013-05-28Table of ContentsIndex401-652M
22YP4-6-825A3PTable of ContentsIndexGreat Plains Manufacturing, Inc.
Note:
1. Typical: UM Coulters. No Markers or Row Cleaners.
Note:
1. Typical: UM Coulters. No Markers or Row Cleaners.
Note:
1. Typical: UM Coulters. No Markers or Row Cleaners.
Typical Planter Weights
Approximate Weights of
RepresentativeYP425A3PConfigurations-0470-0430-08TR-0436-0836-0438-0838-0440-0840
Base Planter
Typical¹ Empty
Typical¹ Full
Maximum² Empty
Maximum² Full
Center of Gravity is approximately 36in aft of hitch.
2. Maximum: UMC+RC, Markers.
Approximate Weights of
RepresentativeYP625A3PConfigurations-0670-0630-12TR-0636-1236-0638-1238-0640-1240
Base Planter
Typical¹ Empty
Typical¹ Full
Maximum² Empty
Maximum² Full
Center of Gravity is approximately 0in aft of hitch.
Weight of a specific planter can vary by hundreds of
pounds, depending on installed options and
material loaded.
Great Plains Manufacturing, Inc.Table of ContentsIndexOperating Instructions23
Loading Materials
Hopper Operations (s/n B1014R+)
Refer to Figure 15 and Figure 16
Hopper lids:
• the lids have two spring clips, one at each end.
• there is a molded handle at the rear end of the
hopper lid (although the lid is reversible).
To open a hopper:
1. Grasp the handle and snap lid off.
2. Park the lid length-wise on the side lip of the hopper,
using the hooked ends of each spring clip inside the
lid (see Figure 18 on page 25).
The seed hoppers themselves are designed to be
removed, but are not removed for routine operations.
Loading Seed (1.6 bu.hoppers)
3. Install correct seed disks (page 57).
4. Check that each hopper is correctly seated and
secured:
4
5
6
5. Open hopper lid.
6. Inspect the hopper for leftover seed and debris.
Clean out anything other than the seed to be
planted. See “Material Clean-Out” on page 75.
1
3
2
front and rear mounting bolts secured
hopper discharge opening lined up with
seed tube
1
2
1
3
Figure 13
Hopper Lid
1
5
32446
2
4
4
6
U
R
F
B
L
D
Figure 14
Air-Pro® Row Hopper
(serial number B1014R+)
2013-05-28Table of ContentsIndex401-652M
32233
24YP4-6-825A3PTable of ContentsIndexGreat Plains Manufacturing, Inc.
Loading Materials
Hopper Operations (s/n B1013R-)
Refer to Figure 15 and Figure 16
Hopper lids have distinct ends:
• the hinge end (with two lugs) mates with the front
end of the hopper.
• the latch end (with a single lug) mates with the rear
end of the hopper.
To open a hopper:
1. Pull the rear of the lid edge to the rear.
2. Swing the lid up at rear.
3. Disengage the lid at the front lugs.
4. Park the lid on the front lip of the hopper, using the
hook-plate feature inside the lid (see Figure 17 on
page 25).
The seed hoppers themselves are designed to be
removed, but are not removed for routine operations.
1
3
2
Loading Seed (1 bu.hoppers)
5. Install correct seed disks (page 57).
6. Close all seed inlet shutters (page 58).
7. Check that each hopper is correctly seated and
secured:
pivot hooks engage at front,
4
latch engaged at rear,
5
seed hose secured to
6
discharge weldment with
7
clamp.
8
8. The hopper slide gatemay be left open (by pulling
back), and doing so slightly increases seed capacity.
Note: If slide gate is open for seed loading, seed inlet
shutters must be closed unless the planter is
already at the field. Transporting with both gates
and shutters open can plug meters.
9. Open hopper lid.
10. Inspect the hopper for leftover seed and debris.
Clean out anything other than the seed to be
planted. See “Material Clean-Out” on page 75.
9
1
R
F
U
D
Figure 15
Hopper Lid Hinge Lugs
1
4
B
6
L
Figure 16
Air-Pro® Row Hopper
(serial number B1013R-)
3
1
28131
2
7
9
8
5
29975
401-652MTable of ContentsIndex2013-05-28
Great Plains Manufacturing, Inc.Table of ContentsIndexOperating Instructions25
Loading Seed, continued
Possible Agricultural Chemical Hazards:
Read and follow all supplier cautions for safe handling of
treated seed.
Irritant and Chronic Exposure Hazards:
Do not mix lubricants into seed with hands or any part of
body. Wear protective equipment. Use tools. See page 89.
11. Pre-mix seed and lubricant. For clean seeds other
than milo, cotton, and sunflowers sprinkle
Ezee Glide Plus per bushel or unit (60 ml per
35 liters) of seed.
For milo, cotton, and sunflowers double the
application to1⁄2cup (or more) per bu.or unit (120 ml
per 35 liters) of seed.
1
⁄4cup of
Figure 17
Adding Seed Lubricant
1 bu.Hoppers
(serial number B1013R-)
29976
Population Risk:
The seed must be properly lubricated, starting with the first
seed through the meter. If unable to pre-mix prior to loading,
pre-mix at least one gallon (4 liters) per hopper, and load this
seed first. Fill the hoppers to half full with fresh seed. Add half
the lubricant and stir. Complete filling the hoppers and
sprinkle the remaining lubricant on top.
12. Add seed and lubricant to hoppers.
Refer to Figure 13 and Figure 14 on page 23
For 1.6 bu.hoppers (s/n B1014R+)
13. Close lids. Position front end of lid over front end lip
of hopper. Snap lid firmly in place.
Refer to Figure 15 and Figure 16 on page 24
For 1 bu.hoppers (s/n B1013R-)
14. Close lids. With lid tilted up at a slight angle, hook
the two front hinge lugs under the front hopper lip.
Swing down, keeping fingers clear of lug, and latch
the single rear lid lug on rear hopper lip.
Equipment Loss Risk:
Check that all 3 lid lugs are completely under the hopper lip,
or the lid may come off in transport.
Figure 18
1.6 bu.Hoppers
(serial number B1014R+)
32447
2013-05-28Table of ContentsIndex401-652M
26YP4-6-825A3PTable of ContentsIndexGreat Plains Manufacturing, Inc.
Monitor Operation
Refer to Figure 19
The standard DICKEY-john® PM300 system monitors
the following elements of a YP4-6-825A3P planter:
• Seeds at each row unit seed tube:
Medium and larger seeds are individually counted with
high accuracy. Small seed sensing may be limited to
seed stoppage (“blockage”) detection.
• Ground speed:
The standard magnetic pickup
a
at the ground drive
allows the monitor to calculate and report population.
Once setup for the planter and your display preferences,
and configured for the current crop rates/limits, the
monitor is typically used in the “OPERATE” mode. Refer
to the DICKEY-john® PM300/PM332/PM400 Operator’s
Manual for monitor operation details.
Both the DICKEY-john®manual and this manual contain
trouble-shooting information for apparent monitor
problems.Check both manuals,as the focus and content
is not identical.
Figure 19
Monitor: Typical Operate Screen
29972
a. An optional radar speed sensor is available, as are Y-cables to accept input from an existing radar on the tractor.The magnetic pickup
may be preferred, as both speed and seed flow fall to zero at lift. With radar,the monitor cannot tell that seeding should have stopped.
You may experience more nuisance alarms with radar.
401-652MTable of ContentsIndex2013-05-28
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