GREAT PLAINS YP-625, YP-425, YP-825, YP-1025-A3P Operator's Manual

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Page 1

Table of Contents Index

29997

Operator Manual

YP-425, 625, 825, & 1025-A3P

4- 6- 8- and 10-Row 3-Point Yield-Pro

with Air-Pro

Manufacturing, Inc.

www.greatplainsmfg.com

Air Planters

Seed Meters

Read the operator manual entirely. When you see this symbol, the subsequent instructions and warnings are serious - follow without exception. Your life and the lives of others depend on it!

Illustrations may show optional equipment not supplied with standard unit, or may show similar pull-type models and their options.

ORIGINAL INSTRUCTIONS

Table of Contents Index

Page 2

Machine Identification

Record your machine details in the log below. If you replace this manual, be sure to transfer this information to the new manual.

If you or the dealer have added options not originally ordered with the machine, or removed options that were originally ordered, the weights and measurements are no longer accurate for your machine. Update the record by adding the machine weight and measurements with the option(s) weight and measurements.

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.:

WARNING:

Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Page 3

YP-425, 625, 825, & 1025-A3P Cover Index Table of Contents iii

Important Safety Information.................................................1

Safety Decals ....................................................................6

Introduction...........................................................................10

Description of Unit ...........................................................10

Intended Usage ........................................................10

Models Covered ......................................................10

Document Family ....................................................10

Using This Manual...........................................................11

Definitions.................................................................11

Owner Assistance............................................................11

Preparation and Setup .........................................................13

Initial Setup......................................................................13

Post-Delivery/Seasonal Setup.........................................13

Pre-Planting Setup ..........................................................13

Hitching Tractor to Planter...............................................14

Electrical Hookup .....................................................14

Hydraulic Hose Hookup............................................15

Protect Motor Seals..................................................17

Raise Parking Stands...............................................18

Leveling Planter...............................................................19

Monitor Setup ..................................................................20

Marker Setup (Option) .....................................................20

Operating Instructions .........................................................21

Pre-Start Checklist...........................................................21

Raising/Lowering Planter.................................................21

Transport .........................................................................22

Transport Steps........................................................22

Loading Seed ..................................................................25

Machine s/n: .............................................................25

YP425A3P with 3.0 bu Hopper s/n B1015M+ ..........25

YP425A3P with 1.6 bu Hopper s/n B1016M+ ..........25

YP625A3P with 3.0 bu Hopper s/n A1040P+ ...........25

YP625A3P with 1.6 bu Hopper s/n B1042P+ ...........25

YP825A3P with 3.0 bu Hopper s/n B1267R+...........25

YP825A3P with 1.6 bu Hopper s/n B1269R+...........25

YP1025A3P with 3.0 bu Hopper s/n C1002U+ ........25

YP1025A3P with 1.6 bu Hopper s/n C1002U+ ........25

Machine s/n: .............................................................27

YP425A3P s/n B1007M thru B1015M ......................27

YP625A3P s/n B1009P thru B1041P .......................27

YP825A3P s/n B1014R thru B1268R.......................27

YP1025A3P s/n C1001U-.........................................27

Late Production Hopper Lids....................................27

Early Production Hopper Lids...................................27

Hopper......................................................................28

Machine s/n:.............................................................29

YP425A3P s/n B1006M- ..........................................29

YP625A3P s/n B1008P-...........................................29

YP825A3P s/n B1013R-...........................................29

YP1025A3P n/a........................................................29

Monitor Operation............................................................31

Air System Operation ......................................................32

Air and Seeding System Overview...........................33

Fan Circuit Operation (S/N-) ...................................34

Fan Circuit Operation (S/N+) ..................................35

Fan General Operating Information .........................36

Butterfly Valve Operation: ........................................36

Air-Pro

Meter Operation ................................................37

Meter Operation .......................................................37

Marker Operation (Option) S/N- ......................................38

Folding The Markers ................................................38

Marker Operation (Option) S/N+ .....................................39

Marker Controls........................................................39

Field Set-Up Checklists ...................................................40

Field Operation................................................................41

Short-Term Parking.........................................................42

Long-Term Storage .........................................................42

Adjustments..........................................................................43

Setting Material Rates.....................................................44

Planting Rate Details................................................44

1. Rate: Monitor configuration: .................................44

2. Rate: Disk Selection:............................................44

3. Rate: Range Sprockets ........................................45

4. Rate: Transmission Sprockets .............................45

5. Rate: Seed Inlet Shutter.......................................46

6. Rate: Meter Pressurization...................................46

7. Rate: Checking.....................................................46

Marker Adjustments (Option) ..........................................47

Marker Disk Adjustment ...........................................47

Fan and Adjustment ........................................................48

Furrow Check:..........................................................48

Fine-Tuning Meter Pressurization ............................49

Alternate Skip/Double Check ...................................49

Gauge Wheel Adjustments..............................................50

Yoke Spring Adjustment...........................................50

Wheel Axle Adjustment............................................50

25AP Series Row Unit Adjustments ................................51

Row Unit Down Pressure .........................................52

Adjusting Down-Force..............................................52

Unit-Mount Cleaner Adjustments .............................54

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

2018-07-23 Cover Index 401-652M

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YP-425, 625, 825, & 1025-A3P Cover Index Table of Contents iv

UMC Coulter Adjustments........................................55

UMC Coulter Depth Adjustment...............................55

Coulter Row Alignment.............................................56

Row-Unit Opener Disk Adjustments.........................57

Setting Planting Depth..............................................57

Opener Disc Contact Region....................................57

Adjusting Disc Contact .............................................57

Side Gauge Wheel Adjustment ................................58

Adjusting Gauge Wheel Scrapers ............................59

Seed Meter Setup and Adjustment ..........................60

Meter Rain Cover .....................................................60

Seed Inlet Shutter Adjustment..................................60

Optimal Seed Pool Slopes .......................................61

Meter Re-Fill.............................................................61

Air-Pro

Meter Disk Installation................................62

Removing a Seed Disk.............................................63

Row Unit Shut-Off ....................................................63

Sprocket Indexing (Stagger).....................................65

Seed Firmer Adjustments.........................................66

Keeton Seed Firmer Adjustment ..............................66

Seed-Lok

Seed Firmer Lock-Up.............................66

Press Wheel Adjustment.........................................67

Press Wheel Down Pressure ...................................67

Press Wheel Stagger ...............................................67

Press Wheel Centering ............................................68

Troubleshooting ...................................................................69

Planting Rate Problems...................................................69

Suggested Furrow Check:........................................69

Seed Pool Troubleshooting .............................................70

Magnehelic

Gauge Troubleshooting ......................71

Population Troubleshooting Charts .................................72

Maintenance and Lubrication..............................................78

Maintenance ....................................................................78

Material Clean-Out ..........................................................79

Funnel Conversion ...................................................79

Seed Clean-Out (Container).....................................79

Seed Clean-Out (Funnel) .........................................79

Meter Clean-Out.......................................................80

Alternate Meter Clean-Out .......................................80

Meter Brush Maintenance ...............................................81

Meter Brush Replacement........................................82

Seed Disk Maintenance ...........................................83

Cleaning and Storing Seed Disks ............................83

Speed Sensor Gap..........................................................83

Hydraulic Maintenance....................................................84

Bleeding Marker Hydraulics .....................................84

Drive-Line Shear Pin .......................................................84

Marker Maintenance (Option)..........................................85

Marker Shear Bolt Replacement ..............................85

Marker Grease Seal Cap .........................................85

Chain Maintenance .........................................................85

Meter Drive Chain ....................................................86

Spreaders and Scrapers .................................................87

Row-Unit Side Wheels ....................................................87

Seed Flap Replacement..................................................88

Lubrication.......................................................................89

Seed Lubricants ..............................................................93

Options..................................................................................94

Appendix A - Ref. Info..........................................................99

Specifications and Capacities .........................................99

YP425A3P Single-Row Data....................................99

YP425A3P Twin-Row Data ....................................100

YP625A3P Single-Row Data..................................101

YP625A3P Twin-Row Data ....................................102

YP825A3P Single-Row Data..................................103

YP825A3P Twin-Row Data ....................................104

YP1025A3P Single-Row Data................................105

Torque Values Chart .....................................................106

Tire Information Chart ...................................................106

Tire Warranty Information..............................................106

Hydraulic Diagrams .......................................................107

Chain Routing................................................................110

Appendix B - Pre-Delivery .................................................114

Appendix C - Initial Setup..................................................116

Post-Delivery Checklist .................................................116

Seed Monitor Console Installation.................................116

Initial Marker Setup (Option) .........................................117

Marker Speed Adjustment......................................117

Marker Extension ...................................................117

Marker Extension Table .........................................119

122-278S Scraper Installation.......................................120

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 1

Important Safety Information

Look for Safety Symbol

The SAFETY ALERT SYMBOL indicates there is a potential hazard to personal safety involved and extra safety precaution must be taken. When you see this symbol, be alert and carefully read the message that follows it. In addition to design and configuration of equipment, hazard control and accident prevention are dependent upon the awareness, concern, prudence and proper training of personnel involved in the operation, transport, maintenance and storage of equipment.

Be Aware of Signal Words

Signal words designate a degree or level of hazard seriousness.

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is limited to the most extreme situations, typically for machine components that, for functional purposes, cannot be guarded.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury, and includes hazards that are exposed when guards are removed. It may also be used to alert against unsafe practices.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

Prepare for Emergencies

 Be prepared if a fire starts.

 Keep a first aid kit and fire extinguisher handy.

 Keep emergency numbers for doctor, ambulance, hospital

and fire department near phone.

Be Familiar with Safety Decals

 Read and understand “Safety Decals” on page 6,

thoroughly.

 Read all instructions noted on the decals.

 Keep decals clean. Replace damaged, faded and illegible

decals.

2018-07-23 Table of Contents Index 401-652M

Page 6

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 2

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.

 Avoid the hazard by relieving pressure at other remotes,

and shutting down tractor before connecting, disconnecting or inspecting hydraulic lines.

 Use a piece of paper or cardboard, NOT BODY PARTS, to

check for suspected leaks.

 Wear protective gloves and safety glasses or goggles when

working with hydraulic systems.

 If an accident occurs, seek immediate medical assistance

from a physician familiar with this type of injury.

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.

2018-07-23 Table of Contents Index 401-652M

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 3

Transport Machinery Safely

Maximum transport speed for implement is 20 mph (32 km/h) when driving straight. Do not exceed 13 mph (22 km/h) 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 (32 km/h) when driving straight.

Do not exceed 13 mph (22 km/h) in turns. 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 100.

 Do not fold or unfold the planter while the tractor is

moving.

2018-07-23 Table of Contents Index 401-652M

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 4

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 prevent future 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 (8 km/h). Make sure wind drift of chemicals will not affect any surrounding land, people or animals.

 Never wash out a hopper within 100 feet (30 m) 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.

2018-07-23 Table of Contents Index 401-652M

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 5

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.

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.

2018-07-23 Table of Contents Index 401-652M

Page 10

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 6

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

(YP3P425A S/N All) (YP3P625A S/N BB1046P-) (YP3P825A S/N B1312R-) (YP3P1025 S/N C1001U-)

(YP3P625A S/N BB1047P+) (YP3P825A S/N B1313R+) (YP3P1025 S/N C1002U+)

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 tube supporting meter pressurization manifold; 1 total

On the bracket fastened to rear of hopper mount weldment next to center of machine (rear hopper mount weldment on twin-row planters) 1 total

2018-07-23 Table of Contents Index 401-652M

Page 11

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 7

c r u s h i n g : S t a y a w a

y f r om ma

r k e r s

d e a t h f ro m

p i n c h i n g

o r

T o p re v e n

t s e r i o u s i n

j u r y or

K e e p o t

h e r s a w a y .

w h e n t h

e y a re i n m

o t i o n .

8 18

6 8 2 C

68551

(YP3P425A S/N All) (YP3P625A S/N BB1046P-) (YP3P825A S/N B1312R-) (YP3P1025 S/N C1001U-)

h e n t h e y a r e i n mo t i

o n .

K ee

p o th e r s a w a y .

S t a y

a w a y fr o m m a r k e r s

c r u s h i

n g :

d e a t h

f r o m p i n c h i n g o r

8 1 8

6 8 2

T o p r e

v e n t s e r i o u s i n j u r

y o r

c r u s h i n g

: S t a y a

m a r k e r

d e a t h f r

i n g o r

To p r e v e

s i n j u r y

o r

K e e p

a y .

w h e n

i n m o t i o

n .

8 1 8

6 8 2 C

68552

(YP3P625A S/N BB1047P+) (YP3P825A S/N B1313R+) (YP3P1025 S/N C1002U+)

Red Reflectors 838-266C

On the back end of center seed hoppers, inside of daytime reflectors (rear seed hoppers on twin-row planters) and on backs of the inner marker arms (option), above daytime reflector: 2 or 4 total

On the back of end seed hoppers under daytime reflectors (rear seed hoppers on twin-row planters) and on backs of the inner marker arms (option), above daytime reflector: 2 or 4 total

2018-07-23 Table of Contents Index 401-652M

Page 12

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 8

r u s h i n g : S t a y a w a

y f r om m ar

k e r s

e a t h fr o m

pi n c h i n g

o r

o p r e v e n t

s e r i o u s i n

j u r y or

K e e p ot h

e r s a w a y.

w h e n t h e

y a re i n m

ot i o n .

8 1 8

6 8 2 C

68551

(YP3P425A S/N All) (YP3P625A S/N BB1046P-) (YP3P825A S/N B1312R-) (YP3P1025 S/N C1001U-)

w h

e n t h e y a r e i n m o t i o

n .

ee p o t h e r s a w a y .

y a w a y fr o m m a r k e

r s

i n g :

h f r o m p i n c h i n g o r

8 1 8

6 8 2 C

e v en t s e r i o u s i n j u r y

o r

c r u s h i n g

: S t a y aw

m a r k e r

d e a t h fr

i n g o r

T o p r e v e

s i n j u r y

o r

K e e p

a y .

w h e n

i n m o t i o

n .

8 1 8

6 8 2 C

68552

(YP3P625A S/N BB1047P+) (YP3P825A S/N B1313R+) (YP3P1025 S/N C1002U+)

Daytime Reflectors

838-267C

On the back of end seed hoppers outside of red reflectors (rear seed hoppers on twin-row planters), and on backs of the inner marker arms (option), below red reflector: 2 or 4 total

On the back of end seed hoppers above red reflectors (rear seed hoppers on twin-row planters) and on backs of the inner marker arms (option), below red reflector: 2 or 4 total

2018-07-23 Table of Contents Index 401-652M

Page 13

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 9

c r

u s h i n g : S t a y a w a y

f r o m m ar

k e r s

d e

a t h f ro m

p i n c h i n g o

T o

p re v e n t s

e r i o u s in j u

r y o r

K e e p ot h e

r s a w a y.

w h e n t h e y

are i n m ot

i o n .

8 1 8

6 8 2 C

68551

29998

WARNING

EXCESSIVE SPEED

HAZARD

To Prevent Serious Injury or Death: Do NOT exceed 20 mph maximum transport speed. Loss of vehicle control and/or machine damage can result.

818-337C Rev. B

31003

Amber Reflectors 838-265C

On the front face of the front tool bar, each end, on the outside of the end hopper supports 4 total

Danger: Possible Chemical Hazard

818-323C

On the underside of each hopper lid; 4 to 16 total

Warning: Speed

818-337C

On front of main tool bar to left of hitch; 1 total

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Page 14

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 10

31003

818-525C

WARNING

SHARP OBJECT HAZARD

To prevent serious injury or Death from Sharp Objects:

Keep hands, feet, hair, & clothing away from tines.

DO NOT stand or climb on machine when operating.

Keep others away.

27333

31003

Warning: High Pressure Fluid Hazard

818-339C

On right face of 3-point top hitch; 1 total

Warning: Sharp Object (Option)

818-525C

Front face of each row cleaner frame; 4 to 12 total

Warning: Markers (Option)

818-682C

On front face of inner marker arm; 2 total

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Page 15

YP-425, 625, 825, & 1025-A3P Table of Contents Index Important Safety Information 11

29960

838-595C

Torque wheel bolts to 120 lb-ft.

Maximum inflation pressure of tires is 90 psi.

To Avoid Injury or Machine Damage from Improper Tire Inflation or Torquing of Wheel Bolts:

CAUTION

29880

Caution: Read Operator’s 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 right face of 3-point top hitch; 1 total

Caution: Tire Pressure and Bolt Torque

838-595C

On valve stem side of each wheel; 2 or 4 total

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Page 16

YP-425, 625, 825, & 1025-A3P Table of Contents Index Introduction 12

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 4-, 6- and 8-Row 3-Point Yield-Pro

Air Planter (YP-425, 625, 825, & 1025-A3P) 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.

Description of Unit

The YP4-6-8-1025A3P Planter is a three-point precision planting implement for use in conventional till, minimum-till, or light no-till conditions. The YP4-6-8-1025A3P accepts unit-mounted coulters and/or row cleaners. Coulters make it suitable for light to moderate no-till conditions only. The YP4-6-8-1025A3P

includes 25AP Series openers with Air-Pro supporting a wide choice of seed disks.

Intended Usage

Use the YP4-6-8-1025A3P 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 YP4-6-8-1025A3P.

Document Family

401-652M Owner’s Manual (this document)

401-651B Seed and Fertilizer Rate manual

401-652P Parts manual

11001-1333

DICKEY-john

PM300 manual

meters

Models Covered

YP425A3P-0430 4-Row, 30-inch

YP425A3P-08TR 8-Row (4-Pair), 30-inch Twin-Row

YP425A3P-0836 8-Row (4-Pair), 36-inch Twin-Row

YP425A3P-0838 8-Row (4-Pair), 38-inch Twin-Row

YP425A3P-0840 8-Row (4-Pair), 40-inch Twin-Row

YP425A3P-0470 4-Row, 70 cm

YP625A3P-0630 6-Row, 30-inch

YP625A3P-12TR 12-Row (6-Pair), 30-inch Twin-Row

YP625A3P-1236 12-Row (6-Pair), 36-inch Twin-Row

YP625A3P-1238 12-Row (6-Pair), 38-inch Twin-Row

YP625A3P-1240 12-Row (6-Pair), 40-inch Twin-Row

YP625A3P-0670 6-Row, 70 cm

YP825A3P-0830 8-Row, 30-inch

YP825A3P-16TR 16-Row (8-Pair), 30-inch Twin-Row

YP825A3P-1636 16-Row (8-Pair), 36-inch Twin-Row

YP825A3P-1638 16-Row (8-Pair), 38-inch Twin-Row

YP825A3P-1640 16-Row (8-Pair), 40-inch Twin-Row

YP825A3P-0870 8-Row, 70 cm

YP1025A3P-1030 10-Row, 30-inch

 YP425A, YP625A and YP825A pull-type models

have a separate Operator manual (401-651M).

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Introduction 13

Figure 1

Serial Number Plate

31027

Using This Manual

This manual will familiarize you with safety, assembly, operation, adjustments, troubleshooting, and maintenance. Read this manual and follow the recommendations to help ensure safe and efficient operation.

The information in this manual is current at printing. Some parts may change to assure top performance.

Definitions

The following terms are used throughout this manual.

A crucial point of information related to the preceding topic. Read and follow the directions to remain safe, avoid serious damage to equipment and ensure desired field results.

 Useful information related to the preceding topic.

Right-hand and left-hand as used in this manual are determined by facing the direction the machine will travel while in use unless otherwise stated. An orientation rose in some line art illustrations shows the directions of: Up, Back, Left, Down, Front, Right.

Owner Assistance

If you need customer service or repair parts, contact a Great Plains dealer. They have trained personnel, repair parts and equipment specially designed for Great Plains products.

Refer to Figure 2

Your machine’s parts were specially designed and should only be replaced with Great Plains parts. Always use the serial and model number when ordering parts from your Great Plains dealer. The serial-number plate is located on the right end of the rear face of the main tool bar.

Record your YP4-6-8-1025A3P Planter model and serial number here for quick reference:

Model Number:__________________________

Serial Number: __________________________

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Introduction 14

Further Assistance

Great Plains Manufacturing, Inc. and your Great Plains dealer want you to be satisfied with your new YP4- 6- 81025A3P planter. If for any reason you do not understand any part of this manual or are otherwise dissatisfied, please take the following actions first:

1. Discuss the matter with your dealership service manager. Make sure they are aware of any problems so they can assist you.

2. If you are still unsatisfied, seek out the owner or general manager of the dealership.

If your dealer is unable to resolve the problem or the issue is parts related, please contact:

Great Plains Service Department

1525 E. North St.

P.O. Box 5060

Salina, KS 67402-5060

Or go to www.greatplainsag.com and follow the contact information at the bottom of your screen for our service department.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 15

Preparation and Setup

This section helps you prepare your tractor and YP-425, 625, 825, & 1025-A3P Planter for use, and covers tasks that need to be done seasonally, or when the tractor/planter configuration changes.

Before using the planter in the field, you must hitch it to a suitable tractor, inspect systems and level the planter. Before using the planter for the first time, and periodically thereafter, certain adjustments and calibrations are required.

Initial Setup

See “Appendix B - Pre-Delivery” on page 116 for pre-delivery items (normally completed by dealer), and first-time/infrequent setup tasks, including:

• Install seed monitor console in tractor (page 118).

• Set marker extension (Option, page 119).

• 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 86).

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 91.

 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 Values Chart” on page 108.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 16

Figure 2

Three Point Hitch

31048

123

Figure 3

Connector Identification

25236 31033

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 spacers supplied with planter according to the category of your tractor. Lock pins in place.

5. Attach tractor top link to upper hitch clevis on planter.

• 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.

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.

 Lighting connector (standard)  Monitor connector (standard)  __________________________  __________________________

Make sure tractor is shut down with accessory power off before making connections.

These connections may be made in any order. The key requirement is that all connections be made prior to planter movement.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 17

Figure 4

Color Coded Hose Handles

31733

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

Color Hydraulic Function

Green Marker

Black Fan

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.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 18

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”.

Figure 5

Older Style Hoses with Label

27270

Older Style Hoses with Color Ties

Refer to Figure 6 and Figure 7 on page 19

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.

Color Hydraulic Function

Orange Marker

White Fan

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.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 19

Figure 6

Fan Hoses (S/N-)

29781

123

Figure 7

Fan Hoses (S/N+)

31886

Protect Motor Seals

Applies to planters with serial numbers: (YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-)

1. Connect the fan case drain line first, before making any other connections. Connect this line to a low pressure drain port.

 Case drain hose has the smaller

and small, flat-face, low-seep connector.

2. Connect the fan return line second.

 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 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.

/4inch I.D. hose

Applies to planters with serial numbers: (YP3P425A s/n B1005M+) (YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+) (YP1025A3Ps/n+)

For complete instructions see “Fan Circuit Operation (S/N+)” on page 37.

1. Connect the motor return line , to remote circuit return (Extend port) or to sump.

2. Connect the motor inlet line to a tractor remote capable of 20 liters per minute. If a priority remote is available, use it for the fan.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 20

Figure 8

Parking Stand

31049

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 hole aligns with bracket hole.

6. Insert cross-pin and secure with hairpin.

7. Repeat for other side of planter.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 21

Figure 9

Gauge Wheel Yoke

31053

Figure 10

Tool Bar Height and Leveling

31051

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 .

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.

See page 52 for factory setting, and adjustments for local conditions.

3. Check tire pressures of gauge wheels. As necessary, inflate to specifications (page 108).

Refer to Figure 11

4. Measure height from bottom of main tool bar to ground, at each end. If this dimension differs by more

than

/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 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).

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Preparation and Setup 22

Figure 11

Monitor Primary Screen

29971

Monitor Setup

Refer to Figure 26

The standard DICKEY-john the following elements of a YP4-6-8-1025A3P planter:

PM300 system monitors

• Seeds at each row unit seed tube.

• Ground speed.

See “Seed Monitor Console Installation” on page 118.

Refer to the DICKEY-john 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.

PM300/PM332/PM400

Marker Setup (Option)

Prior to first use, check and adjust:

• “Marker Speed Adjustment” on page 119.

Prior to first use, and whenever changing row spacings, set or reset:

• “Marker Extension” on page 119.

Prior to each planting session, check and adjust:

• “Marker Disk Adjustment” on page 49.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 23

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.

Machine Damage Risks:

Always fold markers (page 40) before raising or lowering. Always raise the planter for any reverse/backing. Except on pavement, begin forward motion before lowering, as rows move backward slightly as arms swing up.

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 YP4-6-8-1025A3P 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 64.

 Lubricate planter as indicated under “Lubrication”

on page 91.

 Check all tires for proper inflation. See “Torque

Values Chart” on page 108.

 Check all bolts, pins, and fasteners. Torque as

shown in “Torque Values Chart” on page 108.

 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.

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.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 24

Braking and Loss of Control Hazard:

Do not exceed 20 mph (32 km/h).

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 40).

1. Check that planter is securely hitched to a sufficient tractor (page 16).

2. Verify correct operation of lights.

3. Fold markers if unfolded (Option, page 40).

4. Raise planter (page 23).

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 65).

6. Plan the route. Avoid steep hills.

7. Always have lights on for highway operation.

8. Do not exceed 20 mph (32 km/h) when driving straight. Do not exceed 13 mph (22 km/h) in turns.

9. Comply with all national, regional and local laws when traveling on public roads.

10. Remember that the planter may be wider than the tractor. Allow safe clearance.

11. Transport slowly over uneven or rough terrain.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 25

Typical Planter Weights

Approximate Weights

YP425A3Pof Representative Configurations

-0470 -0430 -08TR -0436 -0836 -0438 -0838 -0440 -0840

Base Planter 1500 kg 3300 lb 4600 lb 3000 lb 4800 lb 3000 lb 4800 lb 3600 lb 4800 lb

Typical1 Empty

Typical1 Full

Maximum

Empty

Maximum2 Full

Center of Gravity is approximately 36 in. aft of hitch.

Typical: UM coulters. No Markers or Row Cleaners.

Maximum: UMC+RC, Markers.

Approximate Weights

1600 kg 3500 lb 4900 lb 3100 lb 5100 lb 3100 lb 5100 lb 3700 lb 5100 lb

1700 kg 3800 lb 5500 lb 3400 lb 5700 lb 3400 lb 5700 lb 4000 lb 5700 lb

1900 kg 4200 lb 5800 lb 3900 lb 6000 lb 3900 lb 6000 lb 4500 lb 6000 lb

2100 kg 4500 lb 6500 lb 4200 lb 6700 lb 4200 lb 6700 lb 4800 lb 6700 lb

Note: Weight of a specific planter can vary by hundreds of pounds, depending on installed options and material loaded.

YP625A3P of Representative Configurations

-0670 -0630 -12TR -0636 -1236 -0638 -1238 -0640 -1240

Base Planter 2000 kg 4300 lb 6200 lb 4200 lb 6100 lb 4200 lb 6100 lb 4200 lb 6100 lb

Typical1 Empty

Typical1 Full

2100 kg 4500 lb 6600 lb 4500 lb 6500 lb 4500 lb 6500 lb 4500 lb 6500 lb

2300 kg 5000 lb 7500 lb 4900 lb 7500 lb 4900 lb 7500 lb 4900 lb 7500 lb

Maximum

Empty

Maximum2 Full

Center of Gravity is approximately 36 in. aft of hitch.

Typical: UM coulters. No Markers or Row Cleaners.

Maximum: UMC+RC, Markers.

Approximate Weights

2500 kg 5400 lb 7800 lb 5300 lb 7800 lb 5300 lb 7800 lb 5300 lb 7800 lb

2700 kg 5900 lb 8700 lb 5800 lb 8700 lb 5800 lb 8700 lb 5800 lb 8700 lb

Note: Weight of a specific planter can vary by hundreds of pounds, depending on installed options and material loaded.

YP825A3P of Representative Configurations

-0870 -0830 -16TR -0836 -1636 -0838 -1638 -0840 -1640

Base Planter 2300 kg 5000 lb 7400 lb 5500 lb 8000 lb 5500 lb 8000 lb 5500 lb 8000 lb

Typical1 Empty

Typical1 Full

Maximum

Empty

Maximum2 Full

Center of Gravity is approximately 36 in. aft of hitch.

Typical: UM coulters. No Markers or Row Cleaners.

Maximum: UMC+RC, Markers.

2300 kg 5300 lb 8100 lb 5800 lb 8600 lb 5800 lb 8600 lb 5800 lb 8600 lb

2600 kg 5900 lb 9300 lb 6400 lb 9800 lb 6400 lb 9800 lb 6400 lb 9800 lb

2800 kg 6300 lb 9500 lb 6900 lb 10100 lb 6900 lb 10100 lb 6900 lb 10100 lb

3100 kg 6900 lb 10700 lb 7500 lb 11300 lb 7500 lb 11300 lb 7500 lb 11300 lb

Note: Weight of a specific planter can vary by hundreds of pounds, depending on installed options and material loaded.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 26

Typical Planter Weights

Approximate Weights

YP1025A3P of Representative Configurations

-1030

Base Planter 6100 lb

Typical

Empty

Typical1 Full

Maximum

Empty

Maximum2 Full

Center of Gravity is approximately 36 in. aft of hitch.

Typical: UM coulters. No Markers or Row Cleaners.

Maximum: UMC+RC, Markers.

6400 lb

8200 lb

8500 lb

10300 lb

Note: Weight of a specific planter can vary by hundreds of pounds, depending on installed options and material loaded.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 27

Figure 12

3.0 bu and 1.6 bu Hoppers

36914

40%

Figure 13

Hopper Lid Open For Loading

36926

40%

123

Loading Seed

Machine s/n:

YP425A3P with 3.0 bu Hopper s/n B1015M+

YP425A3P with 1.6 bu Hopper s/n B1016M+

YP625A3P with 3.0 bu Hopper s/n A1040P+

YP625A3P with 1.6 bu Hopper s/n B1042P+

YP825A3P with 3.0 bu Hopper s/n B1267R+

YP825A3P with 1.6 bu Hopper s/n B1269R+

YP1025A3P with 3.0 bu Hopper s/n C1002U+

YP1025A3P with 1.6 bu Hopper s/n C1002U+

Refer to Figure 13

There are two different sizes of hoppers (3.0 bu and

1.6 bu ) used in the serial number range listed above. The instructions for loading both hoppers are the same.

The 3.0 bu hopper cannot be used for twin row applications or for 15 in (8.1 cm) single row spacing applications.

The 1.6 bu hopper can be used for all applications covered in this manual.

Refer to Figure 14

1. Hopper lids : are held in place by a latch and a hinge .

2. Release the latch and allow the gas spring to raise the hopper lid. Leave the lid all the way open to prepare the hopper for loading.Refer to Figure 14

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 28

Figure 14

Hopper Preparation

32446

Figure 15

Adding Seed Lubricant

34710

Refer to Figure 15

3. Install correct seed disks (page 64).

4. Check that each hopper is correctly seated and secured:

front and rear mounting bolts secured hopper discharge opening aligned with seed tube

5. Inspect the hopper for leftover seed and debris. Clean out anything other than the seed to be planted. See “Material Clean-Out” on page 81.

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 95.

Refer to Figure 16

6. Pre-mix seed and lubricant. For clean seeds other than Milo, cotton, and sunflowers sprinkle 1/4 cup of Ezee Glide Plus per bushel or unit (60 ml per 35 liters) of seed.

For milo, cotton, and sunflowers double the application to 1/2 cup (or more) per bu.or unit (120 ml per 35 liters) of seed.

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 with a tool. Complete filling the hoppers and sprinkle the remaining lubricant on top.

7. Add seed and lubricant to hoppers.

8. Close lids. Snap latches closed.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 29

Figure 16

Late Production Hopper Lid

36910

10%

123

Figure 17

Early Production Hopper Lid

32446

123

Figure 18

Hopper Lid Stored for Loading

32447

Machine s/n:

YP425A3P s/n B1007M thru B1015M

YP625A3P s/n B1009P thru B1041P

YP825A3P s/n B1014R thru B1268R

YP1025A3P s/n C1001U-

Refer to Figure 17

The capacity of this hopper is 1.6 bu.

Within the serial number range listed above, there are two different designs of hopper lids. Make sure you follow

the correct instructions for the hopper lids used on your machine.

Late Production Hopper Lids

1. Late production hopper lids : are held in place by a mounting plate and a draw handle .

2. Unlatch the draw handle and lift lid off.

3. Prepare the hopper for loading by setting the lid aside.

 The seed hoppers themselves are designed to be

removed, but are not removed for routine operations.

Early Production Hopper Lids

Refer to Figure 18

1. Early production hopper lids : are held in place by 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).

2. Grasp the handle and snap lid off.

Refer to Figure 19

3. Prepare the hopper for loading by storing the lid lengthwise on the side lip of the hopper, using the hooked ends of each spring clip inside the lid.

 The seed hoppers themselves are designed to be

removed, but are not removed for routine operations.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 30

Figure 19

Air-Pro

Row Hopper

32233

Figure 20

Adding Seed Lubricant

34710

Hopper

Refer to Figure 20

1. Install correct seed disks (page 64).

2. Check that each hopper is correctly seated and secured:

front and rear mounting bolts secured hopper discharge opening aligned with seed tube

3. Inspect the hopper for leftover seed and debris. Clean out anything other than the seed to be planted. See “Material Clean-Out” on page 81.

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 95.

Refer to Figure 21

4. Pre-mix seed and lubricant.

For clean seeds other than milo, cotton, and sunflowers sprinkle 1/4 cup of Ezee Glide Plus per bushel or unit (60 ml per 35 liters) of seed.

For milo, cotton, and sunflowers double the application to 1/2 cup (or more) per bu.or unit (120 ml per 35 liters) of seed.

and stir with a tool. Complete filling the hoppers and sprinkle the remaining lubricant on top.

Add seed and lubricant to hoppers.

Close lids.

If the lid has a draw handle, position front end of lid over front end lip of hopper. Snap lid firmly in place. Latch the draw handle.

If the lid does not have a draw handle, center the lid on the opening and push down. Make sure spring clips are all engaged.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 31

Figure 21

Hopper Lid Hinge Lugs

28131

123

Figure 22

Air-Pro

Row Hopper

(serial number B1013R-)

29975

12345

Machine s/n:

YP425A3P s/n B1006M-

YP625A3P s/n B1008P-

YP825A3P s/n B1013R-

YP1025A3P n/a

Refer to Figure 22 and Figure 23

The capacity of this hopper is 1.2 bu.

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.

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. Prepare the hopper for loading by storing the lid on the front lip of the hopper, using the hook-plate feature inside the lid. Refer to Figure 24

 The seed hoppers themselves are designed to be

removed, but are not removed for routine operations.

5. Install correct seed disks (page 64).

6. Close all seed inlet shutters (page 65).

7. Check that each hopper is correctly seated and secured:

pivot hooks engage at front, latch engaged at rear, seed hose secured to discharge weldment with clamp.

8. The hopper slide gate may be left open (by pulling back), and doing so slightly increases seed capacity.

 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.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 32

Figure 23

Hopper Lid Stored for Loading

36909

82%

Figure 24

Adding Seed Lubricant

34710

9. Inspect the hopper for leftover seed and debris. Clean out anything other than the seed to be planted. See “Material Clean-Out” on page 81.

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 95.

10. Pre-mix seed and lubricant.

For clean seeds other than Milo, cotton, and sunflowers sprinkle

/4cup of Ezee Glide Plus per

bushel or unit (60 ml per 35 liters) of seed.

For milo, cotton, and sunflowers double the application to

/2cup (or more) per bu.or unit (120 ml

per 35 liters) of seed.

11. Add seed and lubricant to hoppers.

12. 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 lids are closed properly or the lid may come off in transport.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 33

Figure 25

Monitor: Typical Operate Screen

29972

Monitor Operation

Refer to Figure 26

The standard DICKEY-john

PM300 system monitors

the following elements of a YP4-6-8-1025A3P 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 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.

at the ground drive

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.

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Figure 26

Planter Air System for Air-Pro

Seed Metering

29973

1713281439154101651117

Air System Operation

Meter Pressurization System Elements ( shows air direction)

Hydraulic Fan Seed Hose Seed Tube Sensor (Figure 28)

Butterfly Valve

Air-Pro® Seed Meter

Sensor Port (Figure 28)

Meter Pressurization Air Seed Inlet Shutter Pressure Sensor Lines

Row Pressurizing Tube Seed Pool (Figure 28) Pressure Sensor Chamber

Seed Hopper Disk Seed Pocket (Cell)

Slide Gate Seed Hose (Figure 28)

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Magnehelic

Pressure Gauge

Page 39

YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 35

Figure 27

Air-Pro

Meter, Disk Side

31040

2345789

101112131415161713

Air and Seeding System Overview

Refer to Figure 27, on page 34, and Figure 28.

The hydraulic fan supplies air exclusively for meter operation. Fan rpm is operator-adjusted (page 38), normally via the tractor circuit’s hydraulic flow control.

A manually-adjusted butterfly valve is provided at the fan outlet. See page 38 for valve adjustment.

The manifold system delivers fan air across the planter. It includes passive internal design features to balance pressure across the planter.

Separate pressurization tubes route manifold air to each row unit.

Seed is delivered from the seed box by gravity through the sliding seed tubes , to the inlet of the

Air-Pro

A manually adjusted inlet shutter controls the size of the seed pool at the base of the meter. The shutter

also minimizes air loss back up the seed inlet tube, and is also used during row shut off. See page 62 for shutter adjustments.

At the meter, pressurization air exits the meter through the seed pockets of the disk, and holds seed in the pockets until released above the seed tube .

In the seed tube, the seed sensor detects passage of seeds. Medium size and large seeds are counted individually. With smaller seeds, most are detected, allowing the monitor to detect stoppages.

seed meter .

Several rows have a pressure sensor port for the meter pressurization system. A line from each of these rows is connected to a chamber to average the

pressures.

The averaged pressure is reported by a Magnehelic gauge visible to the tractor operator. See page 50 for

use of the gauge in making fan adjustments.

A sensor in each seed tube reports seed passage to the seed monitor. Larger seeds are counted individually. For smaller seeds, the system acts as a blockage monitor.

 Use of the special blank disk (page 66), and closing

the seed inlet shutter (page 62), are particularly important when a sensor row is shut off.

 On any row, running a normal disk with no seed, or

with an open empty inlet, unbalances the air system. Doing either at a sensor row causes the gauge to mis-report as well.

 Do not operate in the ground with the fan shut off, or

with insufficient manifold pressure. The meters will completely fill with seed. Meter clean-out may be required to resume normal operation.

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Figure 28

Hydraulics at Fan

31029

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 high rpm. A reversed fan may send some air to the meters, but is incapable of providing reliable air flow for planting.

534

Fan speed can change as oil heats to operating temperature. Re-check meter pressurization more often during early operations.

Fan Circuit Operation (S/N-)

Applies to planters with serial numbers: (YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-) (YP1025A3P n/a)

See also “Fan and Adjustment” on page 50.

Refer to Figure 29

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 17.

1. Always connect the case drain line first.

This line protects the outer shaft seal of the hydraulic motor. The case drain is a small line to the hitch, provisioned with a specialized low-seep flat-face case drain Quick Disconnect. Pressure spikes during motor operation, and pressure cycles due to temperature change are bled off by the case drain.

Motor Seal Damage Hazard

Do not apply pressure to the case drain line. Do not change the special QD connector. A restricted or sealed case drain line will promptly result in motor seal damage.

2. Connect the motor return line second, to sump.

The planter includes a 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 4.5 gallons/minute. If a priority remote is available, use it for the fan.

4. The fan hydraulic circuit includes a check valve , which provides a relief path for oil at motor shutoff. If the fan is connected in reverse, flow through this valve results in low fan rpm, providing 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 butterfly valve (and not the seed monitor).

You may stop the fan by setting the circuit to neutral or float. The check valve slows the blades to a stop by locally recirculating the oil.

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Figure 29

Hydraulics at Fan

31869

345

Figure 30

Fan Hoses

31886

Fan Circuit Operation (S/N+)

Applies to planters with serial numbers: (YP3P425A s/n B1005M+) (YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+) (YP1025A3P s/n C1002U+)

See also “Fan and Adjustment” on page 50.

Refer to Figure 30

Operating flow Shut-off flow (fan coasting to stop)

Two hydraulic hoses serve the fan, and must be properly connected for the fan to operate in the correct direction , and at recommended speeds. See “Hydraulic Hose Hookup” on page 17.

1. Connect the motor return line , to remote circuit return (Extend port) or to sump.

The planter includes a pressure-relief QD coupler for the return line. This prevents motor damage in the event that the return line is not connected, or is connected incorrectly; however, an oil spill results if the return line is not correctly connected.

2. Connect the motor inlet line to a tractor remote capable of 20 liters per minute. If a priority remote is available, use it for the fan.

3. The fan hydraulic circuit includes a check valve , which provides a relief path for oil at motor shutoff. If the fan is connected in reverse, flow through this valve results in low fan rpm, providing strong indication reversed connection.

Fan speed is controlled by the tractor circuit and butterfly valve (and not the seed monitor).

 Fan speed can change as oil heats to operating

temperature. Re-check meter pressurization more often during early operations.

You may stop the fan by setting the circuit to Neutral or Float. The check valve slows the blades to a stop by locally recirculating the oil.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 38

Butterfly Valve Operation:

To adjust, loosen bolt and rotate the handle . Re-tighten bolt.

0° is wide open - maximum air flow.

90° is closed - minimum air flow.

The valve provides the most effect at settings between 20° and 70°.

Starting at 30° reduces the fan workload.

Starting at 45° provides the most adjustment range up or down.

 You may find that different crop, seed disk and rate

range combinations need different valve settings. If so, make a note of the valve angle on the chart in the Seed Rate manual.

Figure 31

Fan Butterfly Valve Handle

25137

Low Population Risk at Turns:

The fan requires up to 4.5 gpm. This figure does 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 meter pressurization and tune operations to keep it at planting levels in turns.

Fan General Operating Information

Adjust the fan to provide the meter pressurization recommended for the seed disk, seed, and seed density. See the tables and charts for recommended values in the Seed Rate Manual.

Normal gauge readings are in the 0.8 inch to 4.0 inch water pressure range, and vary considerably with crop.

Refer to Figure 32

Use tractor remote hydraulic valve flow control to set fan speed and butterfly valve adjustment to make fine adjustments to meter pressurization. Precise technique depends on tractor capabilities:

848-020C

• The objective is to obtain recommended meter

pressurization, and maintain it during end-of-pass marker fold, lift and turn.

• For any setup adjustment, operate the tractor engine

at typical field rpms, and not at idle.

• Preset the butterfly valve. Use any setting that you

previously developed for the crop/disk/range (see Note at right), otherwise:

If the tractor has fine control of remote flow rates, and consistent flow at varying tractor engine rpm, initially set the butterfly valve to 30° or less.

If the tractor has only coarse control of flow, initially set the butterfly valve to 45°.

• Set the fan circuit flow to bring the gauge reading to

near the recommended value.

• Fine tune the meter pressurization with the butterfly

valve.

• If the tractor has marginal flow available, or the list

circuit has priority, you may need to experiment with combinations of fan flow and butterfly valve settings.

Always start the fan with a low flow setting.

Gradually bring fan up to the recommended initial meter pressurization.

At excessive rpm, too much air flow can cause:

• oil heating

• slow lift times

If desired pressure cannot be reached, or requires unusually high oil flow at low butterfly valve settings, chances are the fan is running backwards. Reverse the inlet/return lines at the hitch.

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Figure 32

Air-Pro

Seed Meter at Row

29825

123456789

Air-Pro® Meter Operation

Refer to Figure 33

The meter disk is driven, top forward, by a chain drive (not shown) always connected to the section drive shaft. At non-planting rows, use a blank disk (page 66).

Seed is air-delivered to the inlet above the air release screen . Seed customarily fills to the top of the screen, blocking further air flow from the seed delivery system, until the seed level falls below the screen.

Seed enters the meter at the seed inlet shutter (if open), and forms a seed pool at the base of the meter. Seed pool size is controlled by the shutter handle setting (which is the only user adjustment at the meter). Initial shutter settings are given in the seed rate charts.

Meter pressurization air enters the meter at , and exits the meter primarily at the seed pockets in the seed disk. The pressure differential holds seed in the disk pockets rising from the seed pool. Excess seed at a pocket is picked off by the tickler brushes .

The strip and drop brushes block meter pressurization air. Seeds passing the drop brush are free to fall into the seed tube, and are detected by the seed sensor .

Meter Operation

1. Install disks for your crop/population range per the Seed and Fertilizer Rate manual and the instructions beginning on page 64 of this manual.

2. Open the shutter at planting rows to the recommended initial setting (from the Seed Rate charts). At unused rows, install a blank disk (page 66) and close shutter.

3. Set sprocket indexing if staggering a twin-row crop (see Seed and Fertilizer Rate manual for details).

4. Operate fan to achieve suggested manifold pressure (Seed and Fertilizer Rate manual, and page 50).

5. Open slide gates to fill meters (page 31).

6. With all rows primed, rotate meters one turn to fill pockets to edge of drop brush. Rotate the drive shaft (top forward) with a and rotate ground drive wheel (top forward).

7. Leave fan running (to keep seed in top pockets). Re-install rain covers. Commence planting. Meter operation is automatic from this point on.

See also: “Seed Pool Troubleshooting” on page 72, “Meter Clean-Out” on page 82, and “Meter Brush Maintenance” on page 83.

/8inch (23 mm) wrench, or raise

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 40

Overhead, Crushing and Sharp Object Hazards:

Do not allow anyone to stand near or beyond the end of the wings during marker operations. There is risk of serious injury or death for anyone in the path of a marker. Marker arms are heavy, are under tremendous hydraulic power, and may move suddenly if the hydraulic system is damaged or needs bleeding. Marker discs may be sharp.

Marker Operation (Option) S/N-

THIS PAGE APPLIES ONLY TO MODELS: (YP425A3P s/n B1004M-) (YP625A3P s/n B1006P-) (YP825A3P s/n B1007R-)

Before Operating Markers

• Make sure cylinders are properly bled. See “Marker

Maintenance (Option)” on page 87.

• This section presumes correct marker extension for

your pass spacing. If this has not been set, or needs to be changed, see “Marker Extension” on page 119.

• Markers are equipped with an automatic sequence

valve that controls which side activates, as well as marker deployment speed. Marker folding speed is adjusted via set screws on the sequence valve body. Excessive folding speed may damage markers. Set speed prior to first field operations. See “Marker

Speed Adjustment” on page 119.

Marker Unfold (one side)

1. Move tractor hydraulic control (lever or switch) for the marker circuit (typically to Extend). Hold until marker is completely unfolded. Do not leave tractor control in detent.

2. 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.

Both Sides Unfolded

With both markers in the upright/tilted positions:

1. Unfold either side, and when completely deployed:

2. Move lever/switch to Retract momentarily, and return to Extend to deploy other side.

Row Marker Operation

To alternate which side is marked:

1. Move the tractor’s circuit control to Retract. Hold until marker is folded.

2. Move the tractor’s circuit control to Extend. Hold until the new side’s marker is fully unfolded.

3. Return tractor control to neutral/off.

Folding The Markers

If your planter has markers, fold them before performing a lift operation.

1. Move the tractor’s circuit control to Retract. Hold until marker is folded.

2. Tilt markers down for transport or storage.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 41

Overhead, Crushing and Sharp Object Hazards:

Marker Operation (Option) S/N+

THIS PAGE APPLIES ONLY TO MODELS: (YP425A3P s/n B1005M+) (YP625A3P s/n B1007P+) (YP825A3P s/n B1008R+) (YP1025A3P s/n C1002U+)

Before Operating Markers

• Make sure cylinders are properly bled. See “Marker

Maintenance (Option)” on page 87.

• This section presumes correct marker extension for

your pass spacing. If this has not been set, or needs to be changed, see “Marker Extension” on page 119.

• Markers are equipped with an automatic sequence

Speed Adjustment” on page 119.

Marker Unfold (one side)

1. Move tractor hydraulic control (lever or switch) for the marker circuit (typically to Extend). Hold until marker is completely unfolded. Do not leave tractor control in detent.

Row Marker Operation

To alternate which side is marked:

1. Move the tractor’s circuit control to Retract. Hold until marker is folded.

2. Move the tractor’s circuit control to Extend. Hold until the new side’s marker is fully unfolded.

3. Return tractor control to neutral/off.

Marker Controls

The marker controls are in circuit with the lift controls. The markers raise and lower with the planter.

When the planter is lowered:

• One side marker will unfold.

• Hold the hydraulic control until marker is fully

extended.

When the planter is raised:

• The marker will fold up.

• Hold the hydraulic control until the marker is fully

folded.

The next time the planter is lowered the opposite side marker will unfold.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 42

Field Set-Up Checklists

Use the following tables to develop a final checklist for your tractor/planter configuration.

Additional or fewer steps may be necessary depending on tractor features, planter options and planting accessories.

Mechanical Checklist (Hitching) Page

Planter hitched 16

Parking stands raised 20

Electrical Checklist Page

Verify electrical hookups solid 16

Check seed monitor terminal and observe any diagnostic messages

Option: Verify that, when planter is lowered, optional radar speed sensor is pointed at ground, at an angle approximately 35° below horizontal.

a. Refer to monitor manual. b. Refer to sensor documentation.

Hydraulic System Checklist Page

Check tractor hydraulic reservoir full -

Fan case drain Fan return Fan motor pressure side (retract)

Inspect connections for leaks -

Check fan speed and airflow direction

a. Operate fan briefly. Observe rotor blades spinning toward

exit port as fan slows to a stop.

Air System Checklist Page

Fan butterfly valve set 38

Seed loaded. Lids closed. 27

Meter shutters open to chart value 62

No air leaks (except from seed hoppers)

Hoses and tubing - no sags, no pinches

Check both manifold and sensor lines

Hoses fully connected to meters

Row Units Checklist Page

Preset depth handles alike. 59

Preset down force springs alike, except in tracks.

Option: Set all unit-mounted coulters to

/4inch shallower than opener blades.

Check coulter alignment to row 58

Check closing wheel alignment 69

Set press wheels alike, except in tracks. 69

Check action and contact of side depth wheels 60

Check wheel scraper gaps (if installed) 61

Slide gates open 31

Mechanical Checklist (post-Hitching) Page

Planter leveled 21

Marker extension set 119

Marker disc angle set 49

Markers folded (unless already at start of first planting row)

Planter Meter Drive Checklist Page

Check chain lubrication and slack 87

Calibrate speed sensor pulses with planter

Corn? Check timing of meters for twin-row

Check chain tension. Re-connect any loose idler tensioning springs.

Correct disks for seed

Start fan. Operate at field manifold pressure. 36

Rotate meter drive shafts one turn disks with seed.

a. Refer to Seed and Fertilizer Rate manual.

lowered.

Meters Checklist Page

Seeding: Set/check Range and Transmission

against rate chart

a. Refer to seed monitor manual. b. Refer to Seed and Fertilizer Rate manual.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 43

Field Operation

Perform all steps in “Pre-Start Checklist” on page 23 and “Field Set-Up Checklists” on page 42.

First Pass Operation Checklist Page

Slide gates open. Shutters set. 39

Raise planter and line up at start of first

planting row.

Prime meters with seed.

Leave fan running.

Unfold marker on next-row side. 40

Pull forward, lower planter, and begin planting

for a short distance.

Stop. Assess:

• planting depth

• seed spacing

• press wheel operation

Make necessary adjustments 45

Resume planting. -

Sharp Field Turnsa Checklist

Fold marker 40

Raise planter when fold is complete 23

Make turn

Lower planter 23

Unfold marker on next-row side. 40

Resume planting.

a. Monitor manifold pressure during end-of-pass operations

and turns. Adjust operations as needed to maintain meter pressurization.

Page

Suspending Planting Checklist Page

Stop tractor -

Fan hydraulic circuit to Float or Neutral 36

Hydraulic drive circuit to Float or Neutral -

Fold Marker 40

Raise planter 23

Ending Planting Checklist Page

Suspend operations as above, then

Lights ON -

Transport 24

Consult seed monitor for alarms during planting. Check that reported rates are consistent with your plan.

When reloading seed, check consumption against anticipated use to that point.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Operating Instructions 44

Short-Term Parking

1. Fold markers (page 40).

2. Choose a location with level firm ground. Do not unhitch on a steep slope.

3. Raise planter to just off ground.

4. Lower parking stands to ground and pin (page 20).

5. Lower planter.

6. Set hydraulic circuits to neutral.

7. Disconnect hydraulic lines. Secure them so that they do not touch the ground.

8. Disconnect electrical cables, capping where provisioned.

9. Unhitch.Restart tractor and pull away from planter.

Long-Term Storage

1. Complete Parking steps (page 44). Park the planter indoors if possible.

2. See “Material Clean-Out” on page 81. Clear all seed from seed container, seed delivery system and meters.

3. Close slide gates and latch hopper lids.

4. Remove seed disks from meters (this is primarily to relieve pressure on brushes). Clean disks of residue build-up (see Caution below). Use mild soap, non-abrasive scrubbers, and hot or warm water. If using sealed storage, dry disks prior to storage.

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.

5. Tie or tape a small plastic bag over ends of all seed delivery tubes to prevent insects from entering or nesting.

6. Close seed inlet shutters at meters (to prevent pest entry to seed hoses). Thoroughly clean seed and seed treatment residue from seed meters. Seed Meter Clean-Out” on page 72 for more information.

7. Clean planter of mud, dirt, excess oil and grease.

8. Lubricate all points listed in Maintenance.

9. Apply grease to exposed cylinder rods to prevent rust.

10. Inspect planter for worn or damaged parts. Make repairs and service during off season.

11. Use spray paint to cover scratches, chips, and worn areas on the planter to protect the metal.

12. Cover planter with a tarp if stored outside.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Adjustments 45

Adjustments

To get full performance from your YP-425, 625, 825, & 1025-A3P planter, you need an understanding of all component operations, and many provide adjustments

Even if your planting conditions rarely change, some of these items need periodic adjustment due to normal

wear. for optimal field results. Some of these have been covered earlier in this manual.

Adjustment Page The Adjustment Affects

Frame height 21 Planting depth consistency

Frame level 21 Planting consistency

Air System 34

Fan Speed 38 Optimal seed distribution

Meter Pressurization (values from SRM

Planting Rate SRM

Marker Adjustments

Marker Extension 119 Intended swath spacing

Marker Speed Adjustment 119 Reliable marker operation

25AP Row Unit Adjustments

Opener Depth 59 Planting depth

Row Unit Down Pressure 54 Planting depth uniformity

Row Unit Lock-Up 67 Single/twin-row operation

Row Cleaner Adjustments (Option) 56 Row preparation

Coulter Adjustments (Option) 57 Seed depth uniformity

Opener Disk Adjustments 59 Seed depth, seed-to-soil contact

Side Depth Wheels 59 Seed depth, prevents plugging

Adjusting Gauge Wheel Scrapers 61 Consistent seed furrow depth

Seed Meter Setup and Adjustment 62 Consistent seed population

Seed Firmer Adjustments (Option) 68 Seed-soil contact

Press Wheel Adjustment 69 Effective soil coverage

Monitor Adjustments PM

a. SRM: Seed and Fertilizer Rate manual (401-651B)

b. PM: DICKEY-john

Planter Monitor operator manuals

)

50 Consistent seed flow and disk singulation

Refer to Seed and Fertilizer Rate manual

Refer to Seed Monitor manual

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Adjustments 46

Figure 33

Monitor Setup Screen

29978

Figure 34

Air-Pro

Seed Disks

29594

Setting Material Rates

Full details on rate setting sprocket selection and installation are found in the Seed Rate Manual (pub. number 401-651B). This is a summary. Setting the seeding rate requires the following steps:

1. monitor setup

2. seed disk selection,

3. drive speed Range sprockets,

4. transmission sprockets,

5. inlet shutters

6. meter pressurization,

7. checking seeding rate.

All rate adjustments are performed at the left end of the planter. There are no adjustments at the ground drive assembly.

Planting Rate Details

1. Rate: Monitor configuration:

The seed monitor must be set up with the

• correct row count,

• correct row spacing,

• speed calibration and;

• expected population limits, in order to have

accurately rate reports and useful alarms.

See the Seed and Fertilizer Rate manual (401-651B) and the DICKEY-john

manual.

If you only plant with the factory configuration of the planter, you never need to update row count and spacing. If any rows are unused, adjust the monitor setup.

Speed calibration must be done prior to first use, and re-calibration is recommended periodically, particularly if soil conditions change.

2. Rate: Disk Selection:

The Seed and Fertilizer Rate manual (401-651B) has a table of recommended disks. Disks are specific to crops. Some crops have multiple disks available, to cover both seed varieties, and different populations within disk rpm limits. Disks have a high and low rpm limit, which also corresponds to a high and low field speed limit. The charts account for these limits.

See “Air-Pro

If any rows are unused, install special blank disks. See “Row Unit Shut-Off” on page 65.

Planter Monitor operator (PM)

Meter Disk Installation” on page 64.

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Figure 35

Range Sprockets

31030

DRIVING

DRIVEN

Figure 36

Transmission Sprockets

31030

DRIVING

DRIVEN

3. Rate: Range Sprockets

Range sprockets provide coarse control of seed rate.

Refer to Figure 36 and Figure 37

All Seed Rate charts specify a DRIVING and DRIVEN sprocket combination for the Range. Crops with more than one range are noted as “LOW RANGE” or “HIGH RANGE” at the top of the chart.

To change Range:

a. Loosen the bolt securing the idler plate .

Disengage the idler. Remove the chain.

b. Remove pins from shaft ends at DRIVING and

DRIVEN sprockets, as well as at storage shaft at left end of frame.

c. Exchange sprockets so that new DRIVING and

DRIVEN sprocket tooth counts (stamped on sprocket face) match chart. Re-pin all shafts.

d. Remount chain (see page 88). Re-engage idlers for

/4inch (6.4 mm) slack in longest chain span.

4. Rate: Transmission Sprockets

Transmission sprockets provide fine control of seed rate. Each chart row provides a rate adjustment of 2 to 3%.

Refer to Figure 37

Each Seed Rate chart row has a unique pairing of DRIVING and DRIVEN Transmission sprocket.

To change Transmission:

a. Loosen the bolt securing the idler plate .

Disengage the idler. Remove the chain.

b. Remove pins from shaft ends at DRIVING and

DRIVEN sprockets, as well as at storage shaft at left end of frame.

c. Exchange sprockets so that new DRIVING and

DRIVEN sprocket tooth counts (stamped on sprocket face) match chart. Re-pin all shafts.

d. Remount chain (see page 88). Re-engage idlers for

/4inch (6.4 mm) slack in longest chain span.

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Figure 37

Seed Inlet Shutter: Setting III

29607

Figure 38

Meter Pressure Gauge

29842

5. Rate: Seed Inlet Shutter

A consistent seed results from having a consistent number of seeds (usually one) in each pocket of the seed disk, avoiding “skips” (fewer seeds per pocket) and “doubles” (excess seed per pocket).

Refer to Figure 38

One of the factors that affects seed pickup at the disk is having an optimal seed pool (page 63). The depth of the seed pool is controlled by the seed inlet shutter .

Each Seed Rate chart specifies a suggested initial shutter setting. See “Seed Inlet Shutter Adjustment” on page 62 for setting details, and further adjustment.

At unused rows, set the shutter to zero/closed to prevent loss of meter pressurization air. Install a blank disk. See “Row Unit Shut-Off” on page 65.

6. Rate: Meter Pressurization

Refer to Figure 39 (which depicts a typical reading for some densities of corn)

A major factor that affects seed pickup at the disk is optimal meter pressurization. Fan air holds the seed in the disk pockets until they pass the drop brush (page 39).

The Seed and Fertilizer Rate manual has a section with suggested initial meter pressures, which may be a single value, or a graph based on seed density.

Meter pressure is set by a combination of tractor circuit lever and fan butterfly valve (page 38). See “Air System

Operation” on page 34.

7. Rate: Checking

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 Seed and Fertilizer Rate manual.

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Sharp Overhead Object and Pinch/Crush Hazards:

Never allow anyone near the planter when folding or unfolding the markers. Markers may fall quickly and unexpectedly if the hydraulics fail. Anyone beneath may be injured if hit by an unfolding marker, or caught in a folding marker.

Figure 39

Marker Disk Angle

11757

2W1N2

Figure 40

Marker Disk Angle (S/N+)

31974

Marker Adjustments (Option)

Fan and Adjustment

1. These steps presume that correct seed disks are

installed (per Seed Rate Manual), and the seed inlet shutters are set for the seed (page 62).

2. With fan off, check meter pressurization reported by

the Magnehelic

3. Determine the recommended meter pressurization

based on your own notes or the published value in the Seed Rate Manual.

4. Put tractor in Park and set brakes. Set tractor engine

speed to typical field rpm. Lift planter.

5. Start the fan. Gradually increase fan speed using the

tractor’s hydraulic flow control for the circuit. Using hydraulic flow and/or the butterfly valve, adjust meter pressurization to the developed or suggested value from step 3.

6. Rotate ground drive wheel to fill meters. Meters are

filled when seed begins emerging below two or more openers. 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.

7. Re-check meter pressurization. With meters and

disks filled, air loss through empty disk pockets is reduced, and meter pressurization can change.

8. Begin planting. Troubleshoot any obvious problems

or optional seed monitor alarms.

9. During the first pass, take note of the average

populations reported on the optional seed monitor.

®a

gauge. Re-zero as needed.

If the reported seed monitor 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 74.

If the population is only slightly low, the problem can be skips (periodic empty disk pockets). If slightly high, the problem can be doubles (period pockets with double seed). An adjustment to the meter pressurization may correct either condition (see step 12).

a. Magnehelic® is a registered trademark of Dwyer Instruments, Inc.

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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.

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.

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 engine at field rpm and

fan running.

D. Inspect the seed disks closely. Look for empty seed

cells (skips) and cells with multiple seeds (doubles).

E. Repeat step B-to-step D until limits are established.

Record limits. Re-install rain covers. Plant with median settings.

10. Resume planting.

A small varying population deviation between rows is normal. 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 74.

11. Continue to monitor meter pressurization.

When oil reaches operating temperature, fan speed can change. Expect to make periodic adjustments to fan circuit or butterfly valve to maintain ideal meter pressurization.

12. 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.

13. 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.

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).

14. Observe the current overall average population

reported by the monitor.

15. Adjust the fan speed down, in small steps, waiting

5-10 seconds between adjustments, until skips occur (actual population begins falling below target). Note the pressure at which skips begin.

16. Restore pressure to the initial value at step 14.

17. Adjust the fan speed up, by periodic small

increments, until doubles occur (actual population begins rising above target). Note the pressure at which doubles begin.

18. Adjust meter pressurization to a value halfway

between the limits established at step 15 and step 17. This is the ideal value for your crop, disk and population, providing equal margin against skips and doubles. Record this value for future use.

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Figure 42

Gauge Wheel Height

31054

12333

Figure 43

Gauge Wheel Spring Length

31053

452

Gauge Wheel Adjustments

The minimum tool bar height is limited by the gauge wheels. In some conditions, such as ridge planting, you may need to use a tool bar height lower than 26 inch.

Refer to Figure 43

There are two adjustments for this at the gauge wheels.

• Gauge wheel yoke spring length :

This provides a variable height reduction of up to

2.2 inch (5.6 cm).

• Axle hole change :

This provides a 2 inch (5.1 cm) height reduction. Making both adjustments provides up to 4.2 inch (10.7 cm) of tool bar height reduction.

Yoke Spring Adjustment

Refer to Figure 44

Check the length of all springs before adjusting.

The maximum (and factory set) spring length is:

3.0 inch (7.6 cm)

The minimum spring length is:

/8inch (6.0 cm)

Each

/8inch of spring compression raises the wheel by

approximately 0.44 inch (3.5 mm per mm).

To adjust the spring length:

1. Raise the planter until the gauge wheels are slightly

off the ground. Place blocks or jack stands under the

frame for safety.  If there is weight on the wheels, the springs may have

additional compression and may not be at a length

you can usefully measure.

2. Loosen the jam nut .

3. Rotate the adjuster nut to set the new spring

length.

4. Tighten the jam nut.

Wheel Axle Adjustment

If the target tool bar height cannot be achieved with the spring adjustment, relocate the wheel axles in the arms. This lowers the planter by about 2 inch (5.1 cm).

1. Raise the planter until the gauge wheels are slightly

off the ground. Place blocks or jack stands under the

frame for safety.

2. Remove bolts , located in lower holes, securing

transport ground tire assembly to unit.

3. Move wheel assembly and secure assembly to upper

hole using previously removed bolt.

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Figure 44

25AP Series Row Unit

29983

25AP Series Row Unit Adjustments

Refer to Figure 45 (which depicts a row unit populated with most optional accessories supported for use with the YP425A3P/625A3P/825A3P/YP1025A3P Air Planter)

From front to back, a Great Plains 25 Series Air-Pro unit can include the following capabilities (some optional):

1. Lock-Up Pin Storage Hole (Hole Standard)

See “Row Unit Shut-Off” on page 65.

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 54.

3. Meter Pressurization Air Inlet (Standard)

Pressure-regulated air enters the meter here and

holds seed in the disk pockets. See “Fan and

Adjustment” on page 50.

4. Seed Delivery Hose Inlet (Standard)

When the hopper slide gate (not shown) is open,

gravity 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 62.

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 60.

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 69.

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 65.

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 56.

Seed Meter (Standard, Choice of Disks)

Meter Disk Installation” on page 64.

row

11. Unit-Mount Coulter (Option) Coulters cut remaining trash and begin opening the seed furrow. Working depth is set by row depth and a mounting hole selection. See “UMC Coulter Adjustments” on page 57.

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 59.

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 61.

15. Seed Firmers (Seed Flap Standard, not shown) An optional seed firmer (Keeton shown) minimizes seed bounce and improves soil contact. It may also deliver fertilizer. See “Seed Firmer Adjustments” on page 68.

16. Press Wheel Type (Choice) A variety of single and dual press wheel assemblies are available, some region-specific. Consult your Great Plains dealer.

Equipment Damage Risk:

Do not back up with row units in the ground. To do so will cause row unit plugging and may result in severe damage.

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Figure 45

Checking Furrow

29983

{

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 46

Assessing Down-force

Figure 47

25AP Series Row Unit Springs

29983

Row Unit Down Pressure

Refer to Figure 46

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 47

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 48

Row unit springs provide the primary down pressure necessary for row unit disks to open a seed trench. The weight of the row units themselves contributes about 130 pounds (59 kg) of the total force.

The springs allow the row units to float down into depressions and up over obstructions. Springs also provide down force on coulters when using optional row mounted coulters, and provide the primary down force on row cleaners (optional), seed firmers (optional) and press wheels.

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Figure 48

25AP Series Row Unit

Spring Adjustment

31034

Cam Notch Pounds Kilograms

zero (out of notch) Lock-Up & Maintenance

one 305 140

two 330150

three 365 165

four 425 195

five 485220

six 545 250 tip Do Not Use

Values are down force with hoppers empty 29958

Figure 49

Row Unit Minimum Cam (at 1)

27065

bottom

Figure 50

Row Unit Maximum Cam (at 6)

27065

top

452

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 rows.

Refer to Figure 50

Use only enough down pressure to cut the seed trench and maintain proper soil-firming over seed. With a full seed load, the force on each row is up to 120 pounds higher at start of planting.

Excessive row unit spring force will lead to premature wear on row unit components and uneven seed depth. If all rows are set to cam 4, some lighter planter configurations could be lifted out of ground contact.

Refer to Figure 49 (shown at cam setting 2), Figure 50 and Figure 51

To adjust down pressure, use a 1

/8inch (29 mm) open

end wrench or the tool stored at the left end of the planter.

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. On twin-row configurations, setting all rows to notch 4 or higher results in a net up force that can exceed the weight of the planter when the hoppers are nearing empty.

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Sharp Object Hazard:

Wear hand protection when working in this area. Row cleaner tines, casting edges and coulter blades are sharp.

Figure 51

UMRC: Cleaner Adjust

27308

365

Figure 52

UMC-RC: Row Cleaner Adjust

27343

5213264

Unit-Mount Cleaner Adjustments

Refer to Figure 52 and Figure 53

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.

/4inch (19 mm).

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Figure 53

25 Series Unit-Mounted Coulter

29124

Figure 54

Coulter Blade Mounting Holes

29125

7235146

UMC Coulter Adjustments

 Coulters are not factory-installed. Check alignment

and depth prior to first use.

UMC 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 re-mounting the coulter blade in one of the six mounting holes arranged in a staggered pattern in the coulter bracket.

Refer to Figure 54 and Figure 55

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

/4inch-above depth. See the table

below.

4. Remove the

/8-11 x 4 inch bolt, lock washer and nut

( in Figure54).

5. Move the blade to the new position. Insert the bolt, and tighten on the lock washer and nut.

/4inch (6 mm)

Hole

Number

Depth of (new) coulter blade relative to (new)

opener blades

1 inch (25 mm) above

/8inch (16 mm) above

/4inch (6 mm) above

/8inch (9.5 mm) below

/4inch (19 mm) below

6. Re-adjust row cleaners, if installed.

If a worn coulter cannot be adjusted to satisfactory operating depth, replace coulter.

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Figure 55

25 Series Coulter Alignment

26125

123

Figure 56

25 Series Coulter Mount

26126

Coulter Row Alignment

Refer to Figure 56

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 center-line 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 69 for press wheel alignment.

Refer to Figure 57

To adjust coulter alignment, loosen the four bolts that attach its bracket to the row unit. The holes on the row unit are slotted, side-to-side, and allow the coulter bracket sideways and rotational adjustment.

Keep the coulter blade vertical while adjusting.

If the blade cannot be brought into alignment, check that the blade spindle itself is using the same hole location on each side of the bracket.

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Figure 57

Opener Adjustments

29983

111

Figure 58

Opener Disc Contact Region

26127

Figure 59

Opener Disc Spacers

26128

67898

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 60)

Setting Planting Depth

Refer to Figure 58

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 59 and Figure 60

Opener disc angle and stagger is not adjustable, but disc-to-disc spacing is, and may need attention as discs experience normal wear. Spacers will need to be reset when blades are replaced.

The ideal spacing causes the blades to be in contact for about one inch . If you insert two pieces of paper

between the blades, they should slide to within zero (touching) to 1.5 inch (3.8 cm) of each other. If zero, the gap between the blades should not be significantly greater than the thickness of two sheets of paper.

If the contact region is significantly larger or there is a large gap, it needs to be adjusted by moving one or more spacer washers.

Adjusting Disc Contact

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. Re-assemble and check disk contact.

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Incorrect

Correct

Side Gauge Wheel

Opener Disks

Side Gauge Wheel

Figure 60

Disk/Gauge Wheel Alignment

Figure 61

Opener-Gauge Wheel Contact

22531

Contact Within this Area

Figure 62

Checking Wheel/Disc Contact

26129

12341

Side Gauge Wheel Adjustment

Refer to Figure 61 and Figure 62

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.

For 2 inch (5.1 cm) planting depth, adjust side gauge wheel angle so wheels contact row unit disks at the bottom of wheel. Check with row units in soil so wheels are held up.

At the same time, keep side gauge wheels close to opener disks so openers do not plug with soil or trash.

 Wheels should be out far enough so disks and wheels

turn freely.

Refer to Figure 64 on page 61

To adjust side gauge wheels:

1. Raise the planter and install lift cylinder locks.

2. Loosen hex-head bolt . Move wheel and arm out on O-ring bushing.

3. Loosen pivot bolt Turn hex adjuster so indicator notch is at 5 o’clock to 7 o’clock.

 Use this as the starting point for adjustment.

4. Move wheel arm in so side gauge wheel contacts row unit disk. Tighten hex-head bolt to clamp arm around bushing and shank.

Refer to Figure 63

5. Check wheel-to-disk contact at 2 inch (5.2 cm) planting depth. Lift wheel 2 inch, check contact and release. When let go, wheel should fall freely.

• If wheel does not contact disk at bottom to area

where blade leaves contact with soil, move hex adjuster until wheel is angled for proper contact with disk.

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Starting Point

Figure 63

Disk/Gauge Wheel Adjustment

22524 22525

112

Figure 64

Gauge Wheel Scraper

25273

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:

/2inch Grade 5 bolt on 25 series:

75 foot-pounds (102 N•m).

/2inch Grade 8 bolt on 25 series:

110 foot-pounds (149 N•m).

 Use “Torque Values Chart” on page 108 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 65

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

/8inch (3 mm) gap at .

4. Rotate scraper left and right around bolt, making sure it cannot touch tire if bumped in field. If it can touch tire, back scraper away from wheel until it cannot.

5. Center scraper angle on bolt until gap is constant.

6. Tighten nut .

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Figure 65

Rain Cover Removal

29606

123

Figure 66

Seed Inlet Shutter

29607

III

||||

Setting Setting Typically Used For

Top (0) Closed: Row Shut-Off, Meter Re-Fill

| (1)

Small seeds, such as Milo, with little or no

treatments

|| (2)

Small treated seeds and edible beans

(such as Soybeans)

||| (3) Corn, round popcorn

|||| (4) Large corn, or heavily treated corn

Bottom (5) Wide Open: Clean-Out

Seed Meter Setup and Adjustment

There are adjustments for seed inlet, and choice of disks. There are no other adjustments, in particular no brush adjustments, at the meter.

Meter Rain Cover

The rain cover keeps side winds from unseating seed in disk pockets. It also keeps precipitation, sunlight and field debris out of the meters.

Refer to Figure 66

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. Re-install the seal.

Seed Inlet Shutter Adjustment

Refer to Figure 67 (showing the shutter at setting 3)

The seed inlet shutter regulates the volume of bulk seed presented to the seed disk. The operating settings vary with crop, seed size and treatments. The shutter also has settings for row shut-off (completely closed), and clean-out (wide open).

The Seed Rate Charts include suggested initial shutter settings. Refine these settings based on experience, and on inspection of the slope of the seed pool at the bottom of the seed disk.

The shutter is operated by a handle. Lift the handle away from the meter plate. Move the handle to half a setting higher than the new setting, then back to the new setting, and lower the pawl into that slot.

The table at right is a general summary of shutter settings.

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Figure 67

Milo: Seed Inlet Shutter at: 1

29602

8:00

Figure 68

Soybeans: Seed Inlet Shutter at: 2

29604

8:30

Foreign Object Risk:

After clearing a bridge, or a delivery blockage upstream, check the seed pool at the meter for any debris that might have been the original cause. Remove such debris from the meter before planting. Don’t run the risk of an object lodging in a seed pocket and causing on-going skips.

Figure 69

Corn: Seed Inlet Shutter at: 3

29603

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 68

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 69 and Figure 70

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-to-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 Re-Fill

Once planting is underway with the seed pools set, it is infrequently possible for bridging at or above the inlet to starve the meter of seed.

An empty meter causes seed monitor “Row Failure” alarm, with a report of the row number. Row numbers are counted from the left wing (outside row is row 1).

Stop, and put the tractor in Park. Leave the fan running. Locate the failed row, remove the rain cover, and verify that the meter is empty. Note the shutter setting. Temporarily open the shutter one of two notches wider. if the problem was inlet bridging, seed should flow into the meter immediately.

If inlet bridging is not the problem, little or no seed flows into the meter with the shutter open wider. In this case, the problem is further up in the seed flow, and may be bridging where the seed hose joins the meter inlet (also check the slide gate). Close the shutter completely for about 15 seconds. This prevents meter pressurization air from opposing seed delivery. Gently tap on the seed inlet. Re-open the shutter and see if seed now fills the meter.

If no obvious foreign object was the cause of the bridging, the shutter setting may have been too small for the seed. Verify that this and other operating rows were at the correct initial shutter setting. If so, re-set the shutters to the next higher opening.

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Figure 70

Disk Removed From Meter

29608

Figure 71

Disk on Clamp and Seat

29611

Figure 72

Disk Clamped

29614

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 62).

Refer to Figure 71 (depicting an empty meter)

4. Inspect meter (see page 83 for details).

5. Make sure clamp is aligned with seat .

Refer to Figure 72

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. With the planter raised, rotate the ground drive wheel, or rotate the meter drive shaft, top forward, with a

/8inch (23 mm) open-end wrench.

8. Reset seed inlet shutter to setting recommended by Seed Rate Chart, or to your own developed value.

9. On the seed monitor console, select the new Material, seed disk Cell Count, and target population.

10. Re-install rain cover (page 62).

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Figure 73

Remove Disk

29611

Figure 74

Seed Inlet Shutter Closed

29609

Removing a Seed Disk

Refer to Figure 74

1. Remove rain cover. If seed is present, close shutter to prevent more seed from entering meter. Attach funnel (page 82) or place a tarp under the row to collect seed.

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 or to control flow to tarp. Open shutter to release remaining seed up to wing tube.

4. Clean seed from all brushes. Clean disk seat ( in Figure 71 page 64), so that new disks can seat fully. Inspect brushes for excess wear and damage. See “Meter Brush Maintenance” on page 83.

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 85.

6. Re-install the rain cover (page 62).

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 (page 66).

2. Fully close seed inlet shutter (page 66).

3. Replace seed disk with blank disk (page 66).

4. Lock up row unit to reduce wear (optional, page 66).

5. Reset marker extension (Option, page 119).

6. Reset monitor active row pattern and row spacing to avoid nuisance alarms (see Monitor manual).

 Meter drive is not disabled on 25AP row units during

shut-off.

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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 75

Shutter Closed, Blank Disk Installed

29610

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.

Figure 76

25AP Row Unit Lock-Up Pin

25269 29983

123

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.

If not locking up rows, any rows may be shut off.

2. Close Seed Shutter

Refer to Figure 75 on page 65

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.

3. Install Blank Disk

Refer to Figure 76

Clean out meter. See “Meter Clean-Out” on page 82. Remove seed disk and install blank disk. See “Air-Pro

Meter Disk Installation” on page 64.

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 seed disks and minimize wear on brushes.

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. 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 77

The lock-up pins 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.

 Lock-up pins are provided for every other row of

twin-row configurations. If you lose a pin, the replacement part number is 805-033C

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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 77

25AP Row Unit Locked Up

29756

452

28420

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 55.

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 78

5. Remove the pin from the storage hole and insert and secure it in the lock-up hole .

6. Lower row unit until lock-up pin rests on lower parallel arm.

Sprocket Indexing (Stagger)

If you are planting:

• twin-row crops,

• at seed interval spacings above 6

/2inches (16.5 cm),

you can synchronize each pair of adjacent meters in a twin row so that you achieve the maximum seed-to-seed spacing between the units of the pair.

Refer to the Seed and Fertilizer Rate manual (401-651B) for instructions and charts.

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Figure 78

Keeton Seed Firmer

28316

 Engage the lever stop under the handle when

Seed-Lok

is in use. If left disengaged , a furrow

obstruction could cause unintended lock-up.

Figure 79

Seed-Lok

Lock-Up

31543

314561452

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).

Row unit disk blades may be sharp. Use caution when making adjustments in this area. To adjust the Keeton Seed Firmer, lower the planter until the disks of the row units are resting on the ground.

Keeton Seed Firmer Adjustment

The optional Keeton 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 79

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-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 80 (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

1. Raise planter. Insert lift assist cylinder locks.

2. Lift Seed-Lok

3. Rotate lever stop to side/idle position . Release

4. Push up on Seed-Lok

To release a locked-up Seed-Lok

1. Insert a

2. Rotate the handle clockwise (handle arm up) until

3. While holding the handle up, rotate the raised portion

Seed Firmer Lock-Up

firming wheels provide additional

wheels:

lock-up handle until lever stop is

free to rotate.

lock-up handle .

wheel until wheel arm

latches up .

/4 in. tool drive tip in the tool hole of the

handle . Alternatively, lift up on the wheel .

the Seed-Lok and falls free.

of the lever stop under both sides of the handle at the arm end. Remove the tool.

wheel releases at the latch point

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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 54.

Figure 80

Press Wheel Adjustments

25118

Figure 81

Press Wheel Force & Stagger

22907

4568782

Press Wheel Adjustment

The press wheels close the furrow which gently presses the soil over the seed to ensure good seed-to-soil contact for even emergence.

To provide consistent seed firming, the press wheels are free to move downward from their normal operating position. This system maintains closing/pressing action even if the row unit arm is lifted when the disks encounter obstructions.

There are three adjustments available on the press wheel assembly:

Refer to Figure 81

1. Down pressure (shown at maximum)

2. Wheel stagger (shown staggered)

3. Centering (see Figure 83 on page 70)

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 54.

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 re-configuring the entire planter. To change the stagger:

Refer to Figure 82

1. Raise the planter. Secure with blocks or jack stands.

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. Re-install the bolt, lock washer and nut. Tighten.

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Figure 82

Press Wheel Centering

(View from beneath opener)

25277

23432

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 83

1. Determine how far, and in which direction, the press wheel assembly needs to move to center the wheels.

2. Raise planter. Secure with blocks or jack stands.

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.

/2inch hex-head bolts and .

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Suggested Furrow Check:

Plant a short distance and dig seeds, or run with the closing wheels wired up to leave an open seed trench.

Based on seeds found, determine an average distance between seeds. Compare the distance between seeds to the seed spacing listed in the charts for your population. This is listed as “inches per seed”.

Troubleshooting

Planting Rate Problems

When starting up with a new planter, a new crop or a new population it is important to physically double check what the monitor is reporting in the cab by digging seeds. This is to verify that you are set up correctly to plant the desired population. Do not rely solely on the population reported by the optional seed monitor.

Also during start up it is common to encounter alarms and readouts on the optional seed monitor that don’t 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 monitor setup to 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.

1. Is the spacing on the ground correct?

2. Is the population reported by the optional seed

monitor

/2 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 optional seed monitor console.

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 reported by the optional seed monitor 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”.

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Figure 83

Rear Cross-Section of Air-Pro

Meter in Normal and Row-Failed Conditions

29986

Normal: Filled Bridging: Inlet Shutter Bridging: Seed Hose Empty Hopper

Inlet is filled to seed box. Seed move slowly down as singulated by meter.

A bridge at the shutter is blocking flow. Causes may include:

• oversize seed

• shutter setting too low

• oversize matter in seed

• excessive or sticky seed

treatment

Oversize matter in seed has caused a bridge at the top of the inlet. Causes may include:

• oversize seed

• oversize matter in seed

• excessive or sticky seed

treatment

No seed arriving from box. Causes may include:

• seed run-out

• slide gate closed

If hopper is empty, air back-flow is also occurring, which can reduce meter pressurization at other rows

Actions: Actions: Actions: Actions:

No action required.

Continue Planting.

1. If shutter was at suggested opening, increase one notch.

2. Check seed pool for foreign matter.

3. Resume planting.

1. Close shutter.

2. Tap on hose/tube junction.

3. Check seed pool for foreign matter.

4. Resume planting.

1. If row is active, add seed or check slide gate.

2. If row is inactive, close shutter.

3. Resume planting.

Seed Pool Troubleshooting

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Figure 84

Magnehelic

Gauge

29842

Port ID for Troubleshooting:

Over-pressure relief port (with plug in place) Low-pressure port (breather/atmospheric pressure) High-pressure port (from manifold chamber)

Alternate high/low ports are plugged.

Winter testing/maintenance advisory: Gauge readings may be inaccurate or sluggish below 20°F

234

Magnehelic® Gauge Troubleshooting

If the Magnehelic® gauge does not read zero with the fan off, inspect the gauge, and re-zero as needed.

Problem Cause Solution

Non-zero with fan off

Gauge reading lower than sensor

Zero drift

Relief port plug missing/damaged

Breather line blocked or kinked

Leak in sensing line Check line to chamber

Gauge damaged

Re-zero per instructions below

Replace plug

Clear breather line

Check for loose cover, damaged O-ring

Check for chamber and breather line problems before re-zero. Re-zero cannot accurately compensate for leaks and blockages.

Re-zero the Magnehelic

gauge on level ground with the fan off, and if possible, under no-wind conditions. Turn the set screw on the meter face until it reads zero from the tractor driver’s viewing position.

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Population Troubleshooting Charts

Population Too Low

Problem Cause Solution

Overall Low Population

Incorrect seed rate

Using Seed Rate Manual, check:

• seed disk selection,

• Range/Transmission sprocket setup, and

• tire size and inflation.

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, as confirmed by gauge. Increase fan speed or reduce butterfly valve setting.

Air pressure too low, but gauge reading is within range or reading high.

Methodically increase the meter pressurization. See “Fan and Adjustment” on page 50.

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.

• Inspect the

/4inch sample lines from the row units

up to the sensor chamber for leaks (page 73).

• Make sure all non-planting rows have blank disks

and shutters are closed (page 66).

• Re-zero the gauge with the fan off (page 73).

• Check gauge vent line for kinks, pinches or

plugging (page 73).

Excess field speed

Incorrect speed sensor constant. Perform speed calibration per seed monitor manual.

Incorrect magnetic speed sensor gap. Check and adjust (page 85).

(Option) Incorrect radar speed sensor angle.

Pass gaps too large

Actual field size is different Population may be correct, and calculations are not.

Seed monitor reporting excess area

Plant within speed ranges recommended in Seed Rate Manual.

With planter lowered, check radar speed sensor angle per DICKEY-john

Check marker extension (page 119). For GPS, check planter size programmed.

Readings can vary with conditions (wheel slippage, and effective rolling radius in soft soils) and planting patterns.

recommendations.

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Population Too Low

Problem Cause Solution

Low Population, Single Row

Shutter opening too narrow - starving meter of seed (low seed pool)

Meter starvation due to bridging at shutter

Meter starvation due to blockage above inlet Clear blockage (page 63).

Meter starvation due to bridging above inlet, caused by high levels of seed treatment

Incorrect seed disk on one row Install correct seed disk.

Chain skipping at row unit. Check chain, idler and sprocket condition.

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 tube plugged Raise planter, expose bottom of seed tube and clean out.

Adjust shutter to higher setting.

Re-adjust for shutter bridging (page 63). If seed is treated, increase seed lubricant.

Clear bridge (page 63). 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, low chain slack (page 87) and failed meter bearing.

Low or Erratic Seed Flow

Seed meter plugged, due to operation with fan shut off, or manifold pressure too low.

Close shutters. Clean-out meters. Set fan for correct manifold pressure. Resume planting.

Population Too High

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

The meter pressurization is too high, as confirmed by gauge

Air meter pressure too high due to pressure sensor not zeroed properly.

Methodically decrease the meter pressurization. See “Fan and Adjustment” on page 50.

Select a disk with smaller pockets.

Reduce fan speed or increase butterfly valve setting.

Re-zero the gauge with the fan off.

Check:

• Inspect the

/4inch sample lines from the row units

up to the sensor chamber for leaks (page 73).

Air pressure too high, but gauge is within range or reading low.

• Make sure all non-planting rows have blank disks

(page 66).

• Check that rubber pressure relief plug is seated in

gauge (page 73).

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. Perform speed calibration per seed monitor manual.

Incorrect magnetic speed sensor gap. Check and adjust (page 85).

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).

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Troubleshooting 76

Population Too High

Problem Cause Solution

Overall High Population, cont.

High Population, Single Row

(Option) Incorrect radar speed sensor angle.

Doubles due to incorrect disk for crop or seed size

Sticky seeds: excess seed treatment Increase seed lubricant.

Incorrect speed sensor constant

Overlapping passes

Actual field size is different Population may be correct, and calculations are not.

Seed monitor under-reporting area

Excess meter pressurization causing doubles Check shutter.

Worn seed-drop brush and/or strip brushes allowing excess seed to pass

Worn meter bearing causing seed disk wobble and doubles

Incorrect seed disk with higher cell count. Install correct disk.

With planter lowered, check radar speed sensor angle per DICKEY-john

Use recommended disk for crop and seed size.

Perform speed calibration per DICKEY-john® monitor manual.

Check marker extension (page 119). For GPS, check planter size programmed.

Readings can vary with conditions (wheel slippage, and effective rolling radius in soft soils) and planting patterns.

Replace worn brushes.

Replace meter bearing.

recommendations.

Population Related

Problem Cause Solution

Overall Population Alarms

Mismatch Between Reported and Furrow Population

False alarms or actual rate errors due to monitor setup with incorrect [active] row count or spacing

Incorrect cell count

Improper gap on magnetic speed sensor.

Incorrect speed sensor constant Perform speed calibration per monitor manual.

(Option) Incorrect radar speed sensor angle.

Seed run-out. Due to unequal outlets per box division, and if planting across slopes, some rows will run out before others.

Small seeds (example milo) are not reliably sensed in the seed tube

Seed tube sensor is not counting all seeds

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).

Check speed sensor on planter for a gap to toothed wheel of:

/32inch (0.020-0.040 inch, 0.5-1.0 mm). Improper gap can cause

erratic speed signal causing monitor to falsely report improper planting rate.

With planter lowered, check radar speed sensor angle per DICKEY-john

Re-distribute seed to favor rows that have run out, and plan to re-fill shortly.

Run with rain covers in place to minimize ambient light intrusion. Use the population scaling factor in the seed monitor system to compensate for missed seeds. 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.

recommendations.

Excessive Seed Cracking

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Incorrect seed pocket size Use correct disk for seed.

Damaged, old or dried-out seed Use new seed.

Unclean seed Use clean seed.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Troubleshooting 77

Population Related

Problem Cause Solution

Skips and Bare Spots After Turns

Fan was turned off at turns

Insufficient hydraulic flow to keep fan running at speed required to maintain meter pressurization

Leave fan running; meter pressurization must be maintained during turns, or seed will fall out of disk pockets.

Check tractor capability against requirements (page 101). If sufficient:

• Fold markers before engaging lift.

• Use a less aggressive lift rate.

• Monitor meter pressurization during end-of-pass

operations.

Seed too shallow or scattered on ground from a single row

Bottom of seed tube damaged.

Row not penetrating in tire tracks. Increase down force on parallel arm springs.

Opener depth too shallow. Change side depth wheel setting.

Replace seed tube. Avoid setting planter straight down. Use forward motion when lowering.

Twin Rows were timed but became out of time.

Timing will change when a population change has been made.

Chain has jumped. Check sprockets and chain for excessive wear or rusty stuck links.

Re-time meters from the population based timing chart.

General Troubleshooting

Problem Cause Solution

Population Alarms

Excess Seed Remaining

Seed

Consumption

Too High

Rows Not Planted

Uneven seed spacing

See “Population Troubleshooting Charts” on page 74.

Field size different. After ruling out population problems, re-check geography.

Excessive gaps between planter passes. Adjust marker, page 119.

See “Population Troubleshooting Charts” on page 74.

Field size different. After ruling out population problems, re-check geography.

Excessive overlap. Irregular shaped field.

If not detected by optional seed monitor, check for plugged row-unit seed tube

See “Population Troubleshooting Charts” on page 74.

Excessive field speed. Reduce field speed.

Unclean seed. Use clean seed.

Damaged seed tube Inspect; repair or replace.

Adjust marker, page 119.

Lift planter, expose bottom of seed tube and clean out.

Seed-Lok® plugging. Lock up Seed-Lok®, page 68.

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. See “Seed Lubricant” on page 96.

2018-07-23 Table of Contents Index 401-652M

See “Row-unit discs not turning freely” in this Troubleshooting chart.

Check and replace any worn/rusted sprockets or chain idlers.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Troubleshooting 78

General Troubleshooting

Problem Cause Solution

Uneven seed depth

Press wheel or row-units plugging

Row-unit discs not turning freely

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 68.

Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 54.

Rough planting conditions. Rework the field.

Seed firmer not in place and set to correct tension.

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 60.

See “Row Unit Down Pressure” on page 54.

See “Seed Firmer Adjustments” on page 68.

Check coulter adjustment.

Check tool bar height page 21

Adjust side depth wheels page.

Seed-Lok® is plugging row-unit. Lock up Seed-Lok®, page 68.

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.

Press wheels not compacting the soil as desired.

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Incorrect spring handle setting See “Press Wheel Adjustment” on page 69.

Insufficient row unit down-force See “Row Unit Down Pressure” on page 54.

Use of incorrectly shaped tire for your conditions.

Not level front to rear. Check tongue height and top link adjustment.

Wheel stagger needs adjustment for conditions

Too wet or cloddy Wait until drier weather or rework ground.

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 69.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Troubleshooting 79

General Troubleshooting

Problem Cause Solution

Hydraulic marker functioning improperly, or not at all

Marker/Fold switch set to Fold.

Marker/Aux valve set to Aux

Air or oil leaks in hose fittings or connections.

Low tractor hydraulic oil level. Check tractor hydraulic oil level.

Loose or missing bolts or fasteners. Check all bolts and fasteners.

Needle valve(s) plugged.

CFM Switch must be set to “Marker”. Set tractor remote circuit to Neutral or Float before operating switch.

On a planter with optional Auxiliary Hydraulics, selector valve must be set to Marker for markers to function. Set tractor remote circuit to Neutral or Float before changing valve.

Check all hose fittings and connections for air or oil leaks.

Open needle valves, cycle markers slowly and reset needle valves, refer to page 119.

Marker disk does not mark

Speed Reading Doesn’t Match Tractor

Disk angle too straight for soil conditions Reverse marker disk to pull or throw dirt.

Monitor speed reading, using optional radar, will only match tractor with planter lowered. (Speed reading with magnetic pickup falls to zero when lifted.)

If speeds don’t agree during planting (with planter lowered), re-calibrate radar speed sensor with planter lowered.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 80

Maintenance and Lubrication

Maintenance

Proper servicing and maintenance is the key to long implement life. With careful and systematic inspection, you can avoid costly maintenance, downtime, and repair.

Always turn off and remove the tractor key before making any adjustments or performing any maintenance.

Crushing Hazard:

Always have transport locks in place when working on implement. You may be severely injured or killed by being crushed under a falling implement.

High Pressure Fluid Hazard:

Check all hydraulic lines and fittings before applying pressure. Fluid escaping from a very small hole can be almost invisible. Use paper or cardboard, not body parts, and wear heavy gloves to check for suspected leaks. Escaping fluid under pressure can have sufficient pressure to penetrate the skin. If an accident occurs, seek immediate medical assistance from a physician familiar with this type of injury.

1. After using your planter for several hours, check all

bolts to be sure they are tight.

2. Remove excess slack from chains. Clean and use

chain lube on all roller chains as needed.

3. Maintain proper air pressure in planter tires.

4. Keep disk scrapers properly adjusted.

5. Clean planter on a regular basis. Regular and

thorough cleaning will lengthen equipment life and reduce maintenance and repair.

6. Lubricate areas listed under “Lubrication” on

page 91.

7. Replace any worn, damaged, or illegible safety

labels by obtaining new labels from your Great Plains dealer.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 81

Figure 85

Convert Container to Funnel

29988

Possible Dust and Chemical Residue and Fume Hazards:

Wear a respirator, and any other protective equipment specified by the seed supplier and/or seed treatment supplier. Expect chemical residue, dust and fumes during clean-out.

12342

Material Clean-Out

When planting is completed, it is commonly the case that some seed remains. There may be seed in the hoppers, hose lines, and meters.

Refer to Figure 86

The planter includes an 817-811C clean-out, stored in a spring-loaded holder at the right rear of the air manifold. The container can hold all the seed in the meter and inlet (up to a closed slide gate).

The container can be converted into a true funnel for complete system clean-out.

 The hoppers are connected to the rows with clamped

hose, and are not intended to be routinely unlatched and tipped for clean-out.

Funnel Conversion

Materials and tools needed:

• a length of 1

/2inch I.D. hose

container for meter

• a worm drive clamp with a working diameter of

approximately 1

• a hacksaw

Trim the sump from the funnel. Slide the hose fully onto the funnel tip. Secure with clamp (do not

-over-tighten clamp, the funnel wall be crushed).

The choice of complete system clean-out process depends on whether you are using the 817-811C as a container or funnel.

Seed Clean-Out (Container)

1. Scoop or vacuum as much seed as possible from the

top of the hoppers.

2. Perform a meter clean-out per page 82.

Seed Clean-Out (Funnel)

1. Close slide gate at hopper (slide gate only exists on

models with serial number B1013R and earlier).

2. Attach funnel as for meter clean-out (page 82), with

hose routed to bucket or other larger container.

3. Use slide gate to control seed flow until meter, inlet

and hopper are empty (slide gate only on models B1013R-).

/2 to 21/4inch

with fine-toothed blade

a. The funnel does not fit rows that are to the left of gauge wheels on twin-row planters. Use vacuum or tarp on those rows. b. The funnel wall is thin ABS. Scissor-type pipe-cutting tools may fracture it. Rotary-type pipe cutting tools may slip off.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 82

Figure 86

Brush Inspection

29608

Figure 87

Funnel Positioned and Engaged

29612

Meter Clean-Out

Refer to Figure 88

The 817-811C seed collection accessory (funnel ) may be attached to the housing of the seed meter, freeing your hands for other tasks during clean-out.

 The funnel does not fit rows to the left of gauge

wheels on twin-row planters. Use vacuum or tarp collection on those rows.

 It may be necessary to raise a twin-row planter to

obtain clearance for the funnel. Secure with blocks or jack stands if the planter is raised.

1. Close the seed inlet shutter on the meter (page 62).

This minimizes the seed volume at disk removal.

2. Remove the rain cover (page 62). The funnel cannot

be snapped in place with the cover installed.

3. Align the left (rear) end of the funnel lip with the

top of the lower (rear) cover latch ear. Place the right (front) end of the funnel lip between the meter housing and the seed tube.

4. Rotate the funnel forward until the slot at lip center

engages a tab on the bottom center of the meter housing.

5. Remove the seed (page 65).

6. Slowly open the seed shutter (page 62) to empty the

seed up to the slide gate.

7. If seed remains in the hopper, use the slide gate to

control the volume of flow.

Refer to Figure 87

8. Clean seed from all brushes (shop vac

recommended).

9. Inspect brushes (page 83).

10. Rotate funnel clockwise, remove and empty.

11. For imminent operations:

Install next seed wheel or blank disk (page 66) for operations. Set inlet shutter for next seed (page 62).

12. For storage:

Close seed inlet shutter. Leave disk out. Close Y-tube (if any).

13. Re-install rain cover (page 62).

At end-of-season clean-out, inspect a few seed meter air release screens. If they require cleaning, consider cleaning all rows.

Alternate Meter Clean-Out

To use a shop vacuum cleaner, with narrow hose nozzle, to clean out a meter:

• Close the seed shutter.

• Release the meter clamp, hold the disk against the

meter.

• Tip the top of the disk away from the meter.

• Insert hose nozzle and remove seed.

• Open shutter to allow seeds in inlet and drop hose to

flow to vac nozzle.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 83

Figure 88

Brushes

29608

567

Meter Brush Maintenance

Possible Chemical Hazard:

Wear a respirator for brush cleaning. Brushes will have talc and graphite residue, and may have residues of hazardous seed treatments.

Refer to Figure 89

A HEPA vacuum cleaner is recommended for brush cleaning. Washing brushes is not recommended and may cause matting. Do not scrape them with sharp instruments.

The first indications of excess brush or damage wear are normally observed on the seed monitor or in air system operation.

• If the tufted brushes are worn/damaged, the seed

“double” rate rises, increasing population.

Finding an occasional cracked seed “hung up” on a tuft fiber is not uncommon, and is not an indicator that brush maintenance is required. Merely remove the seed.

• If the strip brushes are worn/damaged, air

pressure regulation may become unstable, or require increasing fan speed over time.

If you find you need to exceed recommended fan rpm ranges, the regulated air system may be taking too much air due to meter leakage.

In severe cases, seed may leak past the strip brushes, causing spikes in population. If you frequently observe seed in between the strip brushes, one or both may need replacement.

• If the seed drop brush is worn/damaged, its

anti-static effect may fade, which can result in “skips” due to smaller seeds failing to release, and lower populations.

If an obvious groove is worn in the drop brush, replace it.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 84

12 15

Figure 89

Brush Replacement

29719

1112151314

Figure 90

Strip Brush Notches

29720

16171819202013

Meter Brush Replacement

Consult the Parts manual (401-652P) for current replacement part numbers.

Refer to Figure 90

Tufted Brush Replacement

1. Remove and save both 10-24 hex head cap

screws and Nylock nuts (not shown).

2. Remove the tufted brush assembly , and replace

with new assembly.

3. Re-insert the 10-24 screws, and re-start the Nylock

nuts. Carefully tighten each nut just until plate has no play under the screw heads.

4. Add a half turn to the nuts. Do not tighten fasteners

to normal 10-24 torque, or the plate may fracture.

Strip Brush Replacement

/16-18 cap

 Do not loosen or remove any of the three

screws retaining the brush holder.

1. Insert the flat blade of a large screwdriver into the

slots of the brush holder snaps . Turn each snap clockwise to release brush holder .

2. Prepare to catch drop brush (which will fall loose).

Slide brush holder left and up to free front edge from under washer . Remove brush holder.

3. Remove used strip brushes from the holder by

sliding them downward out of the grooves.

Refer to Figure 91

4. Insert replacement strip brushes into grooves at

holder bottom so that notched ends are at the bottom.

Refer to Figure 90

5. Check strip brush positioning with a trial re-insertion

of the brush holder. The ends of the long brush must fit snugly into meter housing grooves at top and lower rear . The bottom end of the short brush must fit snugly in the lower front housing groove . If any significant force is require to re-seat the brush holder, a strip brush is likely too high or too low.

6. Relax the position of the brush holder, re-position the

drop brush (see below), and re-seat the brush holder.

7. Starting with the bottom snap, swing snaps back

into engagement.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 85

Possible Chemical Hazard:

Wear gloves when washing disks. Avoid spray. Do not wash disks where food is prepared, or where cookware or dinnerware is washed. Seed disks will have talc and graphite residue, and may have residues of hazardous seed treatments. Although the disks are dishwasher-safe, do not wash them in an appliance also used for food preparation or food serving items.

Figure 91

Disk Seed Cells and Wiper

29613

12314

Figure 92

Speed Sensor Gap

31008

678

Seed Disk Maintenance

Refer to Figure 92

When removing seed disks, inspect them for wear and damage. If there is any seed dust or treatment build-up in

the cell pockets , or along the raised wiper ridges , clean the disks and re-inspect.

Replace disks for conditions including:

• Chips at circumference . These will leak air.

• Chips at edges or in sculpted surfaces of cell

pockets . These can leak air and/or adversely affect singulation.

• Cracks over 2 inch (5.1 cm) long in the working

face of the disk, or any cracks in support webs or to an edge.

• Warping - if any part of the disk does not press firmly

on the seed drop brushes (page 64) in operation, replace the disk.

• Wear - if a wiper ridge is worn away, replace the disk.

If the seed pockets are worn through, or the air ports have enlarged, replace the disk.

Cleaning and Storing Seed Disks

Use warm or hot water, mild soap, and a sponge or soft brush to remove build-up.

If disks are washed, allow them to dry completely prior to storage.

Retain original shipping cartons for disk storage. Otherwise, store them on edge (and not leaning), or stacked horizontally on a spindle, to eliminate any risk of warps. Any seed residue on disks may attract pests. Fully enclose dry disks to prevent rodent damage.

Speed Sensor Gap

Refer to Figure 93

1. Raise planter (page 23). Rotate ground drive wheel

until a disk tooth is directly at sensor center-line.

2. Check that wheel teeth are on sensor center-line

side-to-side. As needed, loosen collars on either side of disk and adjust.

3. Check that center-line of sensor is pointed at

center-line of transfer shaft. As needed, loosen mounting bolts and adjust.

4. Check gap between top of sensor and toothed

2018-07-23 Table of Contents Index 401-652M

wheel for a dimension of:

/16inch (1.6 mm)

To adjust, loosen jam nut . Adjust base nut to set gap. Re-tighten jam nut.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 86

Figure 93

Transmission Shear Pin

29884

Hydraulic Maintenance

As with any hydraulic system, contamination is the most common cause of performance problems and pre-mature wear. Make a special effort to properly clean

quick couplers prior to attaching the hoses to tractor, and never let them fall to the ground.

Bleeding Marker Hydraulics

To fold properly, the marker hydraulics must be free of air. If the markers fold in jerky, uneven motions.

As the marker cylinders are encased within the main tool bar, it is not practical to bleed them at cylinder fittings. Remove air from the system by slowly cycling fold and unfold several times.

Drive-Line Shear Pin

Refer to Figure 94

The spirol pin that connects main transfer shaft collar to the transmission shears if an excessive load

is put on the shaft.

Infrequent or improper lubrication causes binding of moving parts within the planter. This binding can cause the spirol pin to shear, preventing more serious damage to other planter parts.

Machine Damage / Nuisance Shear Risks:

Do not use arbitrary spirol pins. Replace sheared pins with cotter pins of the same size. Strong pins may fail to shear, causing more serious damage elsewhere. Weaker pins are prone to nuisance shears. Refer to current Parts Manual for correct spirol pin replacement part number.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 87

Figure 94

Marker Shear Bolt

29982

Figure 95

Measuring Chain Slack

27264

Marker Maintenance (Option)

See also: “Initial Marker Setup (Option)” on page 119, “Marker Operation (Option) S/N-” on page 40, and “Marker Disk Adjustment” on page 49

Marker Shear Bolt Replacement

Refer to Figure 95

If a marker gets caught or hits an obstruction, it is designed to fail a shear bolt at the fold, pivot on a

second bolt (not visible in Figure), and swing back.

The shear bolt is a hex head cap screw,

/2inch Grade 5, Great Plains part number 802-012C,

plus a 803-011C.

 If an exact replacement is not immediately available,

Install a replacement shear bolt on the vertical face on the side opposite from the pivot bolt. Do not use a higher grade bolt, or marker hang-ups may result in machine damage. Do not use a lower grade bolt, or you may experience nuisance shears.

/16-18 lock nut, Great Plains part number

temporarily substitute an M8 x 1.25 Class 8.8 bolt and nut.

Marker Grease Seal Cap

If grease seal cap for marker-disk-hub bearings is damaged or missing, disassemble and clean hub. Repack with grease and install new seal or grease cap.

/16-18 x

Chain Maintenance

Inspect and lubricate chains regularly. The slack of new chains tends to increase during the first few hours of operation due to seating.

See also “Chain Routing” on page 112.

Chain Slack

Check slack at fixed idlers within the first 8 hours of operation and tighten idlers as necessary. Check slack at spring-operated idlers seasonally.

Refer to Figure 96, which, for clarity, greatly exaggerates slack, and omits the idlers.

1. Measure the span for allowable slack:

Locate the longest span of each chain (usually the span which does not run through the idlers).

2. Determine the ideal slack:

Long chains (over 36 inch/91 cm): Vertical short chains: Horizontal short chains:

/4inch per foot (2.1 cm/m)

/2inch per foot (4.2 cm/m).

/4inch per foot

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 88

Figure 96

Chain Clip Orientation

26482

Figure 97

25AP Meter Drive Chain

31032

345

3. Measure the current slack :

Acting at a right angle to the chain span at the center of the span, deflect the chain in both directions. The slack is the distance of the movement.

4. Adjust the idlers for ideal slack.

Chain Clips

Whenever mounting a chain, make sure the clip at the removable link is oriented to minimize snags.

Refer to Figure 97 (arrow shows chain direction)

Install clip with open end facing away from direction of chain travel (shown by gray or striped arrows in chain routing diagrams).

Meter Drive Chain

Refer to Figure 98 (which depicts planter raised)

When performing periodic lubrication, check chain condition. Replace chain if any frozen kinks are not corrected by lubrication.

When performing seasonal checks, lower planter to put chain at minimum idler spring tension.

Check that idler spring length , measured from outside of pin to outside of pin, is not shorter than:

7.0 inch (17.8 cm)

Lift spring off idler assembly . Check that idler assembly pivots freely. Re-attach spring.

Check chain clip orientation. Check chain routing at shank idler(s) (see page 115).

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 89

 You may need fewer washers under worn disks.

Figure 98: 25AP

Spreaders and Scrapers

22839

 It is normal for the blade spreader to have some

looseness in the holder and between the blades. Some looseness is required for proper operation.

13245

Sharp Object Hazard:

Be careful when working in this area. Disk edges are sharp.

Figure 99

Side Gauge Wheel Shims

21894

{

123435678

Spreaders and Scrapers

 Applies to all row unit Series.

Refer to Figure 99

1. Remove side gauge wheels from arms to access

row-unit disks and scrapers.

2. With the unit raised, check blade spreader for

wear. Replace spreader if it is or narrower. To replace, remove disk blades , drive out roll pins , and install new spreader.

3. When reinstalling disk blades, put two shims

between bearing and shank on each blade. Tighten bolts.

4. Check amount of contact between blades, and adjust

number of shims as needed. Store extra shims on outside of blade. See “Opener Disc Contact Region” on page 59.

5. Check that outside disk scrapers are formed to

disk blades to help remove any mud. Bend/twist scrapers to fit blades as needed. Every 200 acres of operation, check outside scrapers for adjustment and wear. Replace outside scrapers as necessary.

/2inch (13 mm) wide

Row-Unit Side Wheels

Refer to Figure 100

1. Lift opener side wheel off the ground. Move tire in and

out to check for end play. Check for roughness in bearing by rotating wheel. If bearings are rough, inspect and replace if necessary.

2. Side wheels are preset at the factory. Due to normal

wear it may become necessary to make adjustments so the wheel remains close to the disk. To prevent plugging, loosen clamp bolt and slide arm inward to take up gap between side wheel and disk blade. If more adjustment is needed, go to step 3.

3. Remove bolt and wheel . Remove shims

from the inside of wheel and place them on the outside of wheel. Always place removed shims from the inside to the outside. When installed, wheel should turn freely and not hit the arm at the curve. Do not add any more shims than necessary.

4. Disassemble side gauge wheel arm from unit.

Remove bushing from sleeve and check for wear. If necessary, replace bushing.

5. When reinstalling side gauge wheels, align tab on

hex adjustment with notch in bushing. Replace bolt and tighten.

6. Adjust side gauge wheels. Refer to see “Side Gauge

Wheel Adjustment” on page 60.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 90

Figure 100

Seed Tube Flap

31047

121

Seed Flap Replacement

Refer to Figure 101

To replace a seed flap , use a needle nose pliers or similar tool to grasp “T” top of flap. Pull upward to pull

flap up out of metal bracket .

Push new seed flap down through metal bracket until flap snaps into place with “T” top resting on top of bracket.

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YP-425, 625, 825, & 1025-A3P Table of Contents Index Maintenance and Lubrication 91

Multi-purpose spray lubricant

Multi-purpose grease lubricant

Multi-purpose oil lubricant

Intervals (operating hours) at which service is required

Inspection

34208

21960

15052

25474

25475

Lubrication

Opener Side Wheel Bushing

On both sides of each row-unit (2 per row)

Type of Lubrication: Grease Quantity: Until grease emerges

Gauge Wheel Module Forward Pivot

4 modules per planter, one grease fitting per pivot; 4 total

Type of Lubrication: Grease Quantity: Until grease emerges

Markers (Option)

4 grease fittings per marker, two markers; 8 total

Type of Lubrication: Grease Quantity: Until grease emerges

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Chain: Contact Drive

As Required

1 chain

Type of Lubrication: Chain Lube Quantity = Coat thoroughly

 Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

Chains: Meter Drive

As Required

1 chain each meter

Type of Lubrication: Chain Lube Quantity = Coat thoroughly

 Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

Chain: Range Drive

As Required

1 chain

Type of Lubrication: Chain Lube Quantity = Coat thoroughly

 Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

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27342

Chain: Transmission Drive

As Required

1 chain

Type of Lubrication: Chain Lube Quantity = Coat thoroughly

 Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

Ground Drive Wheel Hub

1 grease fitting at each bearing casting; 4 total

Type of Lubrication: Grease Quantity: Until grease resistance felt

Re-pack seasonally.

Row Cleaner Bearings (Option)

1 grease fitting each wheel, 1 or 2 wheels per row

Type of lubrication: Grease Quantity = Until resistance is felt

To avoid damaging the seal, do not add grease at high pressure.

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Gauge Wheel Hubs

Seasonal

1 grease fitting each spindle; 4 total

Type of Lubrication: Grease Quantity: Until resistance is felt

Markers: Disk Hub

Seasonal

4 bearings; 2 races each marker

Type of Lubrication: Grease Quantity: Re-pack

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Bayer Seed Fluency Agent

This agent is required by regulation for certain crops in certain regions (such as corn and soybean in Canada). It is an alternative to Ezee Glide Plus in other locales, for large seeds. It is not recommended for smaller seeds such as canola and milo.

Refer to the booklet affixed to the bucket for recommended usage. Do not exceed those recommendations, as excess amounts adversely affect accurate metering.

Dust and Explosion Hazard:

Avoid exposure to dust when mixing this powder into seed. Avoid creating dust in any confined space with ignition sources present, as specific concentrations can be explosive. Consult the instruction booklet and SDS

for further cautions.

821-074C Fluency Powder, case quantity

821-075C Fluency Powder, single 4.4 pound bucket

a. SDS: Safety Data Sheet, formerly Material Safety Data

Sheet (MSDS).

Seed Lubricants

To maximize performance of Great Plains metering systems, it is imperative to use “Ezee Glide Plus” or Bayer Seed Fluency Agent.

Ezee Glide Plus Talc+Graphite Mix

821-069C bucket, 5 gallon (19 liter)

Ezee Glide Plus Lubricant “Ezee Glide Plus”is suitable for all seeds, especially treated or inoculated seed, except where talc and graphite mixes are prohibited. Thorough mixing of seed

and added lubricant is required.

Recommended usage:

For clean seeds other than milo, cotton, and sunflowers sprinkle one cup of Ezee Glide Plus Talc per 4 bushels or units (170 ml per 100 liters) of seed.

For milo, cotton, and sunflowers double the application to one cup (or more) per 2 bushels or units (335 ml per 100 liters) of seed.

For canola or mustard, 1 cup (240 ml) per 30 pound (13.6 kg) bag is a minimum starting value. Mix the seed lubricant early during the seed loading. Use more lubricant in extremely dry conditions.

Adjust this rate as necessary so all seeds become coated while avoiding an accumulation of lubricant in the bottom of the hopper.

For seed with excessive treatment, or for humid planting environments, increase the rate as needed for smooth meter operation.

Irritation and Chronic Exposure Hazard:

Wear gloves. DO NOT use hands or any part of your body to mix seed lubricant. Wear a respirator when transferring and mixing. Avoid breathing lubricant dust. Not an acute hazard. May cause mechanical eye or skin irritation in high concentrations. As with all mineral spills, minimize dusting during cleanup. Prolonged inhalation may cause lung injury. Product can become slippery when wet.

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Options

Dual Sequenced Markers

A marker system includes hydraulic cylinder, marker arm and mount for left and right side, plus an automatic sequence valve that controls which side activates, and at what speed. The marker system requires one tractor remote.

The system is factory installed, but ordered as a separate line item.

Description Order Number

4-30 PT PLTR FLAT FOLD MKR 113-837A

6-30 PT PLTR FLAT FOLD MKR 113-838A

8-30 PT PLTR FLAT FOLD MKR 113-839A

10-30 PT PLTR FLAT FOLD MKR 113-510A

See “Marker Operation (Option) S/N-” on page 40.

Seed Lubricant

Description Order Number

Ezee Glide Plus Talc + Graphite Mix (5

gallon / 18.9 liter container)

821-069C

See “Loading Seed” on page 27. See “Bayer Seed Fluency Agent” on page 95.

Clean-Out Container

One container is provided with the planter. Order the following part for additional or replacement containers.

Description

AIR METER CLEAN OUT FUNNEL 817-811C

See “Funnel Conversion” on page 81. See “Meter Clean-Out” on page 82.

Order

Number

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GREAT PLAINS YP-625, YP-425, YP-825, YP-1025-A3P Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operator Manual

Table of Contents

Important Safety Information

Safety Decals

Introduction

Description of Unit

Using This Manual

Owner Assistance

Preparation and Setup

Initial Setup

Post-Delivery/Seasonal Setup

Pre-Planting Setup

Hitching Tractor to Planter

Leveling Planter

Monitor Setup

Marker Setup (Option)

Operating Instructions

Pre-Start Checklist

Raising/Lowering Planter

Transport

Loading Seed

Monitor Operation

Air System Operation

Air-Pro® Meter Operation

Marker Operation (Option) S/N-

Marker Operation (Option) S/N+

Field Set-Up Checklists

Field Operation

Short-Term Parking

Long-Term Storage

Adjustments

Setting Material Rates

Marker Adjustments (Option)

Fan and Adjustment

Gauge Wheel Adjustments

25AP Series Row Unit Adjustments

Troubleshooting

Planting Rate Problems

Seed Pool Troubleshooting

Population Troubleshooting Charts

Maintenance and Lubrication

Maintenance

Material Clean-Out

Meter Brush Maintenance

Speed Sensor Gap

Hydraulic Maintenance

Drive-Line Shear Pin

Marker Maintenance (Option)

Chain Maintenance

Spreaders and Scrapers

Row-Unit Side Wheels

Seed Flap Replacement

Lubrication

Seed Lubricants

Options