Great Plains YP1625A Operator Manual

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Table of Contents Index

Operator

YP1225A & YP1625A

30- and 40-Foot 2-Section Yield-Pro® Planters

with Air-Pro

Manufacturing, Inc.

www.greatplainsmfg.com

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!

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Illustrations may show optional equipment not supplied with standard unit or may depict similar YP1225 or YP1625 models where a topic is identical.

ORIGINAL INSTRUCTIONS

Table of Contents Index

Great Plains Manufacturing, Inc. Cover Index iii

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

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

Introduction ................................................................11

Description of Unit ........................................................11

Intended Usage ........................................................11

Document Family .........................................................11

Covered Models ...........................................................11

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

Definitions................................................................. 12

Owner Assistance ........................................................12

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

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

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

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

Hydraulic Hookup .....................................................14

Hydraulic Hose Hookup............................................ 14

Protecting Hydraulic Motor Seals ............................. 15

3-Point Hitch.............................................................16

Hitching with Hydraulic Tongue (Option)..................16

Raising/Lowering Tongue......................................... 17

Hitching with Either Hitch..........................................17

Electrical Hookup......................................................17

Store Main Parking Stand.........................................18

Lock Up Fertilizer Drive ............................................ 18

Operating Instructions...............................................19

Pre-Start Checklist .......................................................19

Wing Lock Overview.....................................................19

Unfolding The Planter...................................................20

Prepare Hitched Tractor and Planter........................ 20

Prepare Transport Hooks ......................................... 20

Release Wing Locks................................................. 21

Re-Phase Fold Cylinders..........................................21

Partially Unfold .........................................................21

Lower Tongue ..........................................................21

Fully Unfold ..............................................................22

Remove and Store Transport Locks......................... 22

Unfold Closeout........................................................23

Raising/Lowering Planter .............................................24

Raising Planter .........................................................24

Lowering Planter ......................................................24

Re-phasing Lift System ............................................25

Folding the Planter .......................................................25

Shut off Fan and Hydraulic Drive..............................26

Set Tractor and Tongue ...........................................26

Raise Planter............................................................ 26

Install Lock Channels ............................................... 26

Activate Fold Solenoid Valves.................................. 27

Begin Folding ........................................................... 27

Raise Tongue...........................................................27

Complete Fold..........................................................27

Lower Tongue .......................................................... 27

Re-phasing Fold System.......................................... 27

Transporting................................................................. 28

Loading Materials......................................................... 29

Material Loading Overview....................................... 29

Mounting a Hopper or Bulk Seed Box...................... 29

Loading Hopper with Seed.......................................32

Using Auxiliary Hydraulic Circuit ..........................32

Dismounting a Hopper or Seed Box......................... 34

Fertilizer Tanks (Option) .............................................. 35

Filling Tanks ............................................................. 35

Ground Drive Pump ................................................. 35

Field Setup Checklist ................................................... 36

Monitor Operation ........................................................ 37

Electric Clutch Operation ............................................. 38

Hydraulic Drive Operation (Option).............................. 39

Air System Operation................................................... 40

Air System Overview................................................ 41

Fan Circuit Operation ........................................... 42

Fan General Operating Information ..................... 43

Recommended Initial Fan Speeds ....................... 43

Marker Operation ......................................................... 44

Field Operation ............................................................ 45

Skip and Double Checks...................................... 45

Parking......................................................................... 46

Storage ........................................................................ 47

Storage: Fertilizer Option ......................................... 47

Adjustments ............................................................... 48

Setting Material Rates.................................................. 49

Planting Rate............................................................ 49

Fan and Meter Pressurization Adjustment................... 51

Fill Disk with Ground Drive:.................................. 51

Furrow Check:...................................................... 52

Fine-Tuning Meter Pressurization ............................ 53

Checking Planting Rate ............................................... 54

Checking Singulated Rate........................................ 54

Setting Fertilizer Rate .................................................. 55

Marker Adjustments ..................................................... 56

Dual Marker Speed Adjustment ............................... 56

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.

2013-08-13 Cover Index 195-325M

Trademarks of Great Plains Manufacturing, Inc. include: Singulator Plus, Swath Command, Terra-Tine.

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, Ver ti-Till, Whirlﬁlter, Yield-Pro.

Brand and Product Names that appear and are owned by others are trademarks of their respective owners.

Printed in the United States of America

iv YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Marker Disk Adjustment........................................... 56

Height Switch ............................................................... 57

Row Implement Adjustments ....................................... 58

Frame-Mounted Row Accessories........................... 58

Terra-Tine™ Adjustment...................................... 58

Frame-Mounted Coulters ..................................... 59

Vantage I Applicator............................................. 59

25 Series Row-Unit Adjustments ................................. 60

Row-Unit Down Pressure......................................... 61

Spring Down Pressure ......................................... 61

Unit-Mount Cleaner Adjustments ............................. 63

Unit-Mounted Coulter Adjustments .......................... 64

Row-Unit Opener Disc Adjustments......................... 65

Setting Planting Depth ......................................... 65

Side Gauge Wheel Adjustments .............................. 66

Adjusting Gauge Wheel Scrapers............................ 67

Meter Adjustments ................................................... 68

Meter Rain Cover ................................................. 68

Seed Inlet Shutter Adjustment ............................. 68

Optimal Seed Pool Slopes ................................... 69

Meter Re-Fill......................................................... 69

Air-Pro® Meter Disk Installation ............................... 70

Removing a Seed Disk......................................... 71

Row Unit Shut-Off .................................................... 71

Seed Firmer Adjustments ........................................ 74

Keeton® Seed Firmer Adjustment........................ 74

Seed-Lok® Seed Firmer Lock-Up ........................ 75

Seed-Lok® Seed Firmer Lock-Up (older style)..... 75

Press Wheel Adjustments........................................ 76

Press Wheel Centering ........................................ 76

Troubleshooting......................................................... 77

Planting Rate Problems ............................................... 77

Suggested Furrow Check:.................................... 77

Seed Pool Troubleshooting.......................................... 78

Seed Pool Recovery ................................................ 79

Population Troubleshooting Charts.............................. 79

Maintenance and Lubrication ................................... 88

Maintenance ................................................................ 88

Tongue Lift Cylinder Locks ...................................... 89

Material Clean-Out....................................................... 90

Hopper Clean-Out.................................................... 90

Air System Clean-Out .............................................. 91

Meter Clean-Out ...................................................... 92

Funnel Conversion ............................................... 92

Alternate Meter Clean-Out ................................... 93

Seed Tube Clean-Out .......................................... 93

Meter Brush Maintenance............................................ 94

Meter Brush Replacement ....................................... 95

Seed Disk Maintenance............................................96

Cleaning and Storing Seed Disks .........................96

Bleeding Hydraulics......................................................97

Bleeding Lift Hydraulics ............................................97

Bleeding Fold Cylinder Hydraulics............................97

Bleeding Marker Hydraulics......................................98

Marker Maintenance.....................................................98

Hydraulic Drive Maintenance........................................99

Chain Maintenance.....................................................100

Meter Drive Chain.......................................................100

Disc Spreaders and Scrapers.....................................101

25 Series Row-Unit Side Wheels............................101

Fertilizer System Maintenance ...................................102

Liquid Fertilizer Strainer..........................................102

Seed Flap Replacement .............................................103

Lubrication ..................................................................104

Seed Lubricant ...........................................................111

Options and Accessories ........................................112

Appendix A - Reference Information ......................124

Specifications and Capacities.....................................124

YP1225 Models ......................................................124

YP1625 North America Models ..............................125

YP1625 Export Model.............................................126

Tire Inflation Chart ......................................................127

Hydraulic Diagrams ....................................................128

Chain Routing.............................................................137

Torque Values Chart ..................................................140

Appendix B - Pre-Delivery .......................................141

Appendix C - Initial Setup ........................................146

Hydraulic Charge and Bleed.......................................146

Console Installation ....................................................146

Monitor Setup .........................................................146

YP1225A Row Spacing Setup Data ...................146

YP1625A Row Spacing Setup Data ...................146

Level Planter...............................................................147

Wing Alignment ..........................................................148

Speed Calibration .......................................................149

Speed Sensor Operation ........................................149

Marker Setup ..............................................................150

Marker Extension....................................................150

Appendix D - Option Installation.............................151

122-278S Scraper Installation ....................................151

Appendix R - Row Pro..............................................152

Warranty .....................................................................159

Index ..........................................................................161

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Great Plains Manufacturing, Inc. Table of Contents Index 1

Important Safety Information

Look for Safety Symbol

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

Be Aware of Signal Words

Signal words designate a degree or level of hazard seriousness.

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

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

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

Prepare for Emergencies

▲ Be prepared if a ﬁre starts

▲ Keep a ﬁrst aid kit and ﬁre extinguisher handy.

▲ Keep emergency numbers for doctor, ambulance, hospital

and ﬁre department near phone.

Be Familiar with Safety Decals

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

thoroughly.

▲ Read all instructions noted on the decals.

▲ Keep decals clean. Replace damaged, faded and illegible

decals.

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Wear Protective Equipment

Great Plains advises all users of chemical pesticides or herbicides to use the following personal safety equipment.

▲ Waterproof, wide-brimmed hat

▲ Waterproof apron.

▲ Face shield, goggles or full face respirator.

▲ Goggles with side shields or a full face respirator is

required if handling or applying dusts, wettable powders, or granules or if being exposed to spray mist.

▲ Cartridge-type respirator approved for pesticide vapors

unless label speciﬁes another type of respirator.

▲ Waterproof, unlined gloves. Neoprene gloves are

recommended.

▲ Cloth coveralls/outer clothing changed daily; waterproof

items if there is a chance of becoming wet with spray

▲ Waterproof boots or foot coverings

▲ Do not wear contaminated clothing. Wash protective

clothing and equipment with soap and water after each use. Personal clothing must be laundered separately from household articles.

▲ Clothing contaminated with certain pesticides must be

destroyed according to state and local regulations. Read chemical label for speciﬁc instructions.

▲ Wear clothing and equipment appropriate for the job. Avoid

loose-ﬁtting clothing.

▲ Prolonged exposure to loud noise can cause hearing

impairment or loss. Wear suitable hearing protection such as earmuffs or earplugs.

▲ Avoid wearing entertainment headphones while operating

machinery. Operating equipment safely requires the full attention of the operator.

Use A Safety Chain (Hydraulic Hitch)

▲ Use a safety chain to help control drawn machinery should

it separate from tractor draw bar.

▲ Use a chain with a strength rating equal to or greater than

the gross weight of towed machinery.

▲ Attach chain to tractor draw bar support or other speciﬁed

anchor location. Allow only enough slack to permit turning.

▲ Replace chain if any links or end ﬁttings are broken,

stretched or damaged.

▲ Do not use safety chain for towing.

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Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 3

Avoid High Pressure Fluids

Escaping ﬂuid under pressure can penetrate the skin, causing serious injury.

▲ Avoid the hazard by relieving pressure before disconnecting

hydraulic lines.

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

check for suspected leaks.

▲ Wear protective gloves and safety glasses or goggles when

working with hydraulic systems.

▲ If an accident occurs, seek immediate medical assistance

from a physician familiar with this type of injury.

Handle Chemicals Properly

▲ Read and follow chemical manufacturer’s 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.

▲ Before adding chemical to the tank, make sure tank is at

least half full. Do not pour concentrate into an empty tank.

▲ Never leave ﬁll hose attached to the sprayer after ﬁlling

tank. Chemicals in tank can siphon out of tank and contaminate freshwater source.

▲ Immediately and thoroughly ﬂush any area of the body that

is contaminated by chemicals.

▲ Do not touch plumbing components with mouth or lips.

▲ 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.

▲ After working with chemicals, wash hands and face before

eating. Shower when application is completed for the day.

▲ Never wash out the tanks within 100 feet (30m) of any

freshwater source or in a car wash.

▲ Rinse out the tank. Apply rinse water on last ﬁeld treated.

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.

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Use Safety Lights and Devices

Slow-moving tractors and towed implements can create a hazard when driven on public roads. They are difﬁcult to see, especially at night.

▲ Use ﬂashing warning lights and turn signals whenever

driving on public roads.

▲ Use lights and devices provided with implement

Transport Machinery Safely

Maximum transport speed for implement is 20 mph (32 km/h). 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). Never travel speeds which

do not allow adequate control of steering and stopping. Reduce speed if towed load is not equipped with brakes.

▲ Comply with state and local laws.

▲ Do not tow an implement that, when fully loaded, weighs

more than 1.5 times the weight of towing vehicle.

▲ Carry reﬂectors or ﬂags to mark planter in case of

breakdown on the road.

▲ Keep clear of overhead power lines and other obstructions

when transporting. Refer to transport dimensions under “Speciﬁcations and Capacities” on page 124.

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

moving.

Shutdown and Storage

▲ Lower planter, put tractor in park, turn off engine, and

remove the key.

▲ Secure planter using blocks and supports provided.

▲ Detach and store planter in an area where children

normally do not play.

Tire Safety

Tire changing can be dangerous and should be performed by trained personnel using correct tools and equipment.

▲ When inﬂating tires, use a clip-on chuck and extension hose

long enough for you to stand to one side–not in front of or over tire assembly. Use a safety cage if available.

▲ When removing and installing wheels, use wheel-handling

equipment adequate for weight involved.

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Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 5

Practice Safe Maintenance

▲ Understand procedure before doing work. Use proper tools

and equipment. Refer to this manual for additional information.

▲ Work in a clean, dry area.

▲ Lower the planter, put tractor in park, turn off engine, and

remove key before performing maintenance.

▲ Make sure all moving parts have stopped and all system

pressure is relieved.

▲ Allow planter to cool completely.

▲ Disconnect battery ground cable (-) before servicing or

adjusting electrical systems or before welding on planter.

▲ Inspect all parts. Make sure parts are in good condition and

installed properly.

▲ Remove buildup of grease, oil or debris.

▲ Remove all tools and unused parts from planter before

operation.

Safety At All Times

Thoroughly read and understand the instructions in this manual before operation. Read all instructions noted on the safety decals.

▲ Be familiar with all planter functions.

▲ Operate machinery from the driver’s seat only.

▲ Do not leave planter unattended with tractor engine

running.

▲ Do not dismount a moving tractor. Dismounting a moving

tractor could cause serious injury or death.

▲ Do not stand between the tractor and planter during

hitching.

▲ Keep hands, feet and clothing away from power-driven

parts.

▲ Wear snug-ﬁtting clothing to avoid entanglement with

moving parts.

▲ Watch out for wires, trees, etc., when folding and raising

planter. Make sure all persons are clear of working area.

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6 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Safety Decals

Safety Reﬂectors and Decals

Your implement comes equipped with all lights, safety reﬂectors and decals in place. They were designed to help you safely operate your implement.

▲ Read and follow decal directions.

▲ Keep lights in operating condition.

▲ Keep all safety decals clean and legible.

▲ Replace all damaged or missing decals. Order new decals

from your Great Plains dealer. Refer to this section for proper decal placement.

▲ When ordering new parts or components, also request

corresponding safety decals.

To install new decals:

1. Clean the area on which the decal is to be placed.

2. Peel backing from decal. Press ﬁrmly on surface, being careful not to cause air bubbles under decal.

818-055C

Slow Moving Vehicle Reﬂector

On the back of the planter, walkboard center; 1 total

See “Transporting” on page 28.

838-266C

Red Reﬂectors

On the back of seed frame each end, and on the rear face of each light mounting bar; 4 total

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Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 7

838-265C

Amber Reﬂectors

One each on rear face of wing tool bar at wing lock, one each on front face of light bars; 4 total

29622

838-267C

Daytime Reﬂectors

On the back of seed frame, inside red reﬂectors, on the rear face of the light bar; 4 total

818-590C

Danger: Crushing Hazard

On the hitch, one total.

See “Hitching Tractor to Planter” on page 14.

29503

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8 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

838-599C (Option)

Danger: Electrocution Hazard

On marker section each end, two total.

See “Marker Operation” on page 44.

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818-045C

Warning: Pinch-Crush

Above both tires, two total

818-339C

Warning: High Pressure Fluid Hazard

On the tongue, one total

See “Hydraulic Hose Hookup” on page 14.

818-580C (Option)

29622

Warning: Overhead Hazard

On marker section each end, two total

See “Marker Operation” on page 44.

401-625M Table of Contents Index 2013-08-13

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Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 9

818-579C (Option)

Warning: Pinch-Shear Hazard

On marker section each end, two total

See “Marker Operation” on page 44.

29622

818-188C

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 can result.

Warning: Excessive Speed

On the tongue, one total

See “Transporting” on page 28.

818-188C Rev. C

29622

818-398C

Caution: Tires Not A Step

Above both tires, two total

In transport conﬁguration, wing gauge wheels are off the ground and free to spin. In ﬁeld conﬁguration, at higher row unit down-forces, wing gauge wheels may have little or no ground traction.

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10 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

818-578C

CAUTION

To Avoid Injury or Machine Damage from improper Tire

Inflation or Torquing of Wheel Bolts:

Maximum inflation pressure of tires is 65 psi.

Torque wheel bolts to 240 lb-ft.

Caution: Tire Pressure

On hubcap side rim of each gauge wheel; 2 total

838-995C

818-578C

34547

Caution: General

On right side of hitch; 1 total

858-011C

CAUTION

To Avoid Injur y or Machine Damage from Improper Tire

Inflation or Torquing of Wheel Bolts:

Maximum inflation pressure of tires is 49 psi (338 kPa).

Torque wheel bolts to 315 ft-lb (427 N-m).

Warning: Tire Pressure

On outside rim of each main transport wheel; 2 total

858-011C

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34548

401-625M Table of Contents Index 2013-08-13

Great Plains Manufacturing, Inc. Table of Contents Index 11

Introduction

Great Plains welcomes you to its growing family of new product owners. This planter 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.

Description of Unit

The 30- and 40-Foot 2-Section Yield-Pro® Planters are pull-type planting implements for use in conventional till, minimum-till, or light no-till conditions.

Yield-Pro® Planters have 25 Series, side-depth-control row-units and Air-Pro unit-mounted coulters are suitable for light to moderate no-till conditions only. The planter folds for transport.

Intended Usage

Use the 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 planter.

seed meters. Optional

Figure 1

Left/Right Convention

27281

Document Family Covered Models

401-625M Operator Manual (this manual)

401-625B Seed Rate Manual

401-625P Parts Manual

DICKEY-john®IntelliAg® manuals:

110011508 Planter/Drill Control, User Level 1

110011501 Planter/Drill Control, User Level 2&3

110011440 A1 & AI-100 10-inch Virtual Terminal

110011606 AI-120 12-inch Virtual Terminal

DICKEY-john® Quick Start Guides

110011526 YP1225A-1230 12 Row 30-Inch

110011591 YP1225A-1820 18 Row 20-Inch

110011590 YP1225A-2315 23 Row 15-Inch

110011592 YP1225A-24TR 24 Twin Row 30-Inch

110011593 YP1225A-16TR36 16 Twin Row 30-Inch

110011602 YP1625A-1236 12 Row 36-Inch

110011527 YP1625A-1630 16 Row 30-Inch

110011603 YP1625A-1670 16 Row 70 cm

110011601 YP1625A-2420 24 Row 20-Inch

110011605 YP1625A-24TR36 24 Twin Row 36-Inch

110011600 YP1625A-3115 31 Row 15-Inch

110011604 YP1625A-32TR 32 Twin Row 30-Inch

YP1225A-1230 30-Foot, 12-Row, 30-Inch

YP1225A-16TR36 30-Foot, 16-Row (8 Twin), 36-Inch

YP1225A-1820 30-Foot, 18-Row, 20-Inch

YP1225A-2315 30-Foot, 23-Row, 15-Inch

YP1225A-24TR 30-Foot, 24-Row, (12 Twin) 30-Inch

YP1625A-1236 40-Foot, 12-Row, 36-Inch

YP1625A-1630 40-Foot, 16-Row, 30-Inch

YP1625A-1670 12-Meter, 16-Row, 70cm

YP1625A-24TR36 40-Foot, 24-Row, 20-Inch

YP1625A-2420 40-Foot, 24-Row (12 Twin), 36-Inch

YP1625A-3115 40-Foot, 31-Row, 15-Inch

YP1625A-32TR 40-Foot, 32-Row (16 Twin), 30-Inch

Using This Manual

This manual familiarizes 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.

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12 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Deﬁnitions

The following terms are used throughout this manual.

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

A crucial point of information related to the preceding topic. Read and follow the directions provided before continuing, to ensure safety, avoidance of machine damage, and to achieve desired ﬁeld results.

Note: Useful information related to the preceding topic.

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 planter’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 rear face of the right axle.

Record your Planter model and serial number here for quick reference:

Model Number:__________________________

Serial Number: __________________________

Your Great Plains dealer wants you to be satisﬁed with your new machine. If you do not understand any part of this manual or are not satisﬁed with the service received, please take the following actions.

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

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

For further assistance write to:

Figure 2

Serial Number Plate

Product Support

Great Plains Mfg. Inc., Service Department

PO Box 5060

Salina, KS 67402-5060

27284

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Great Plains Manufacturing, Inc. Table of Contents Index 13

Preparation and Setup

This section helps you prepare your tractor and planter for use. Before using the in the ﬁeld, you must hitch the planter to a suitable tractor and level the planter.

Initial Setup

If the planter has just been delivered, or broken down for re-shipment, these items need to be completed prior to ﬁrst ﬁeld use:

•“Hydraulic Charge and Bleed” on page 146, which includes:

•“Console Installation” on page 146

•“Level Planter” on page 147, and

•“Marker Setup” on page 150.

You may also need to install features, options and accessories that were not factory- or dealer-installed.

Pre-Planting Setup

The balance of this section covers items that need to be completed or checked prior to each ﬁeld use of the planter.

1. Read and understand “Important Safety

Information” on page 1.

2. Check that all working parts are moving freely, bolts

are tight, and cotter pins are spread.

3. Check that all grease ﬁttings are in place and

lubricated. See “Lubrication” on page 104.

4. Check that all safety decals and reﬂectors are

correctly located and legible. Replace if damaged. See “Safety Decals” on page 6

5. Inﬂate tires to pressure recommended and tighten

wheel bolts as speciﬁed. See “Tire Inﬂation Chart” on page 127.

6. If returning the planter to service from storage,

remove any grease used to protect cylinder rods.

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14 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Hitching Tractor to Planter

Crushing Hazard:

Do not stand or place any part of your body between planter and moving tractor. You may be severely injured or killed by being crushed between the tractor and planter. Stop tractor engine and set park brake before attaching cables and hoses.

Hydraulic Hookup

High Pressure Fluid Hazard:

Relieve pressure before disconnecting hydraulic lines. Escaping ﬂuid under pressure can have sufﬁcient pressure to penetrate the skin causing serious injury. Use a piece of paper or cardboard, NOT BODY PARTS, to check for leaks. Wear protective gloves and safety glasses or goggles when working with hydraulic systems. If an accident occurs, seek immediate medical attention from a physician familiar with this type of injury.

Hydraulic Hose Hookup

Refer to Figure 3

Great Plains hydraulic hoses have color coded handle grips to help you hookup hoses to your tractor outlets. Hoses that go to the same remote valve are marked with the same color.

Current Style Color Coded Hose Handles

Color Hydraulic Function

Gray Fold/Marker

Blue Lift/Tongue

Black Fan

Yellow Hydraulic Drive (Option)

To distinguish hoses on the same hydraulic circuit, refer to the symbol molded into the handle grip. Hoses with an extended-cylinder symbol feed cylinder base ends. Hoses with a retracted-cylinder symbol feed cylinder rod ends.

For hydraulic fan and drive motors, connect the hose under the retracted cylinder symbol to the pressure side of the motor. Connect the hose under the extended cylinder symbol to the return side of the motor.

The fan motor further requires hookup of a third line, which returns hydraulic ﬂuid from the fan motor case.

Figure 3

Color Coded Hose Handles

31733

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Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 15

Older Style Hoses with Color Ties

Refer to Figure 4

Great Plains hydraulic hoses are color coded. Hoses that go to the same remote valve are marked with the same color tie.

Color Hydraulic Function

White Fold/Marker

Blue Lift/Tongue

Orange Fan

Yellow Hydraulic Drive (Option)

To distinguish hoses on the same hydraulic circuit, refer to plastic hose label. Hose under extended-cylinder symbol feeds cylinder base ends. Hose under retracted-cylinder symbol feeds cylinder rod ends.

Protecting Hydraulic Motor Seals

Low Pressure (Case) Drain Connection

7. Attach case drain hose to low pressure drain

connection.

8. Connect low pressure return hose to low pressure

return connector.

9. If the tractor has a limited number of remotes

capable of continuous ﬂow, use them for the hydraulic fan and optional hydraulic drive. (See “Speciﬁcations and Capacities” on page 124 for tractor requirements.)

Figure 4

Older Style Hoses w/Label

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.

27270

Hydraulic Motor Performance Risk:

DO NOT hook case drain line to a “power-beyond port”.

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16 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

3-Point Hitch

Refer to Figure 5

10. Connect your tractor 3-point to the planter 3-point hitch. If using quick hitch be sure planter locks into hitch securely.

11. Raise tractor 3-point just enough to relieve pressure off of the parking stand.

12. Store 3-point stands . There are two methods:

a. Remove lower pins . Swing stand under hitch.

Reinsert pin beneath stand at inner hole.

b. Remove both pins. Invert stand. Re-pin.

Load Sway Hazard:

Adjust 3-point hitch arms and sway blocks to minimize any side-to-side sway to assure proper tracking in the ﬁeld, and safe road travel.

13. Connect hydraulic hoses to tractor remotes. See “Hydraulic Hose Hookup” on page 14

Hitching with Hydraulic Tongue (Option)

Refer to Figure 6 (showing bypass valve closed)

1. Move the tractor to near hitching position.

2. Connect the hydraulic hoses for the tongue circuit. This needs to be done before hitching in order to raise and lower the tongue. See “Hydraulic Hose Hookup” on page 14. Allow slack for hitch movements. Close the tongue cylinder bypass valve.

3. Make electrical connections for at least the planter monitor circuit (necessary to control planter hydraulic systems). See page 17.

4. Check that hitch local bypass valve is closed.

Refer to Figure 7

5. Set the cab CFM (Clutch Folding Module) Lift/Hitch switch to Hitch.

6. Retract the Hitch/Lift circuit to set the tongue height to clear the draw-bar. Back the tractor into alignment and pin the draw-bar.

Local Float on Hydraulic Tongue

Refer to Figure 6

The hydraulic tongue must be in Float during planter moves.

If it is necessary to move the planter without ﬁrst connecting it to a tractor that has a ﬂoat-capable circuit for the hydraulic tongue, open the bypass valve on the tongue cylinder. This provides local ﬂoating capability at the tongue.

OPEN

CLOSED

Hitching with Hydraulic Tongue

Figure 5

3-Point Hitch Stands Stored

Figure 6

Figure 7

CFM for Hydraulic Hitching

29732

28477

28483

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Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 17

Raising/Lowering Tongue

In addition to hitching, tongue raising and lowering is required during fold and unfold to engage and disengage the wing locks.

With the standard 3-point hitch, the planter tongue is raised and lowered by raising and lowering the 3-point.

With the optional hydraulic tongue, the planter tongue is raised by extending the hitch cylinder, and lowered by retracting the hitch cylinder.

Hitching with Either Hitch

7. Set the initial tongue height, using 3 point or cylinder of hydraulic tongue. Distance , measured at top of tongue tube is:

46 inches (117 cm) above ground level for YP12, or

42 inches (107 cm) above ground level for YP16. Additional planter leveling information is found on page 147.

8. Connect other hydraulic hoses to tractor remotes. See “Hydraulic Hose Hookup” on page 14

Figure 8

Base Height

25316

Electrical Hookup

Refer to Figure 9

Your planter is equipped with two standard systems requiring separate electrical connections. You may also have optional equipment requiring additional connections.

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.

9. Plug the planter light cable to the tractor.

10. Connect monitor lead to monitor harness. (See page 146 for console installation.)

11. Connect any optional harnesses.

Figure 9

Connector Identiﬁcation

25236 25237

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18 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Store Main Parking Stand

Refer to Figure 10

12. Remove the lower pin holding the parking

stand . Swing the parking stand back and up until it is above the rear hole . Place the holding pin in the rear hole and allow the parking stand to rest on it. This will be the transport position for the parking stand.

13. Adjust the top link of a 3-point long enough so the ball swivel does not bottom out when fully raised.

14. Secure hoses using hose post loops (not shown) so that hoses have ample slack for lifts and turns, but cannot get caught in tongue lock or ball swivel. Failure to do so could cause hose to be crushed requiring hose replacement.

15. If equipped with hydraulic hitch option, connect safetychainto a suitable anchor point on the tractor.

Storing Parking Stand

Figure 10

22813

Lock Up Fertilizer Drive

YP1225A serial number B1059E+ YP1625A serial number B1106F+

Loss of Control and Sharp Object/Crushing Hazards:

Do not lift or lower wheel by spoke or rim; use handle only. Keep legs and feet out from under wheel. 90 pounds (41 kg) force is required to lift wheel. If you lose your grip before pinning, or after unpinning, the arm snaps down rapidly. The traction teeth and the force of the wheel impact can inﬂict serious injury.

The liquid fertilizer option uses a piston pump driven by a ground contact wheel. When not using the fertilizer drive, preserve the pump by locking up the ground wheel. On older models remove the chain.

Note: Do not operate planter pump when not applying

material.

Refer to Figure 11

For YP1225A and YP1625A planters:

16. Remove clevis pin from storage hole .

17. Release the lock arm , lift handle to lift ground wheel up to position it in-between lock arm.

18. Secure with pin clevis and cotter pin.

5 7

Locked Up Fertilizer Drive

Figure 11

32364

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Great Plains Manufacturing, Inc. Table of Contents Index 19

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

1. Carefully read “Important Safety Information” on page 1.

2. Lubricate planter as indicated under “Lubrication” on page 104.

3. Check all tires for proper inﬂation. See “Tire Inﬂation Chart” on page 127.

4. Check all bolts, pins and fasteners. Torque as shown in “End of “Appendix A - Reference Information”.” on page 140.

5. Check planter for worn or damaged parts. Repair or replace parts before going to the ﬁeld.

6. Check hydraulic hoses, ﬁttings and cylinders for leaks. Repair or replace before going to the ﬁeld.

7. Be sure hydraulic hoses are securely held out of the ball swivel area at hitch. Failure to do so could cause hoses to pinch requiring hose replacement.

High Pressure Fluid Hazard:

Check all hydraulic lines and ﬁttings before applying pressure. Escaping ﬂuid under pressure can have sufﬁcient pressure to penetrate the skin. 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. If an accident occurs, seek immediate medical attention from a physician familiar with this type of injury.

Wing Lock Overview

Refer to Figure 12 and Figure 13

The YP1225A & YP1625A planters include four sets of locks for the frame and wings:

1. Transport hooks behind the wing pivots: These prevent the planter frame from fully lowering when folded. The planter frame is raised to allow the wings to clear the hooks. See page 20 and 26.

2. Wing locks at mid-tongue and inside wing casters: These prevent the planter from unfolding while in transport. The tongue (hitch) is raised to allow the hooks to clear the locks. See page 21 and 26.

3. Transport lock channels at wing caster cylinders: These lock channels prevent the frame from fully lowering during transport and maintenance. They are installed prior to folding, and removed after unfolding. See page 22 and 26.

4. Lift cylinder lock channels above frame pivots: These lock channels are only required during maintenance. However, if installed, they must be removed after unfolding. See page 22 and 89.

Lift Locks and Transport Hook

Wing Lock and Transport Locks

Figure 12

Figure 13

29734

29735

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20 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Unfolding The Planter

The distance between the tractor and the seed structure decreases by about 10 feet (3 m) during unfolding. Planter, tractor, or both will move during this operation.

Crushing, Pinch-Point and Overhead Hazards:

To prevent serious injury or death:

▲ Unfold only on hard level ground. Allow ample room.

▲ Allow no one on or near the planter during unfolding.

▲ Stay clear of the wing sweep arcs. The sweep arcs of the

wings have numerous pinch and crush points in the mechanism. Coulters and row openers are sharp.

▲ Allow no one near planter during unfold. The seed structure

usually moves forward during unfolding.

▲ Do not unfold with planter lowered.

▲ Unfold only with markers resting in transport cradles.

▲ Unfold only if hydraulics are bled free of air and fully

charged with hydraulic oil.

Prepare Hitched Tractor and Planter

1. Move planter to level ground.

2. If tractor movement is not desired, put tractor in Park and/or set parking brakes, or telescoping movement of planter may cause tractor to move backward.

3. On the CFM (Clutch Folding Module), set the following switches to OFF (down): MASTER switch and Fert.Pump .

1 2

Prepare Transport Hooks

Refer to Figure 15

The transport hooks , behind/above wing pivots, prevent the frame from fully lowering when the planter is fully folded. To clear the hooks, the frame is fully raised.

Refer to Figure 14

4. Set CFM Lift/Hitch switch to “Lift” to enable lift cylinder hydraulics.

5. Set CFM Marker/Fold switch to “Fold” to enable fold cylinder hydraulics.

6. Activate lift hydraulics. Raise planter until lift hydraulics are fully raised. This raises the wing frames above the hooks .

6 5

Figure 14

CFM for Unfold

28484

Figure 15

Planter Damage Risk:

Be sure planter’s lift hydraulics are fully raised before unfolding or frame and/or hook damage WILL occur.

401-625M Table of Contents Index 2013-08-13

Transport Hook

29734

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 21

Release Wing Locks

Refer to Figure 17

A pair of inverted hooks on the tongue tube engage

locks on each wing when the planter is folded.

Prior to unfolding, this lock system must be released by raising the tongue.

7. This step is slightly different depending on hitch type.

Release Wing Lock with 3-Point Hitch

a. Raise the 3-point hitch to disengage the wing

lock. Continue at step 8.

Release Wing Lock with Hydraulic Hitch

Refer to Figure 16

a. Set CFM Lift/Hitch switch to Hitch.

b. Raise hydraulic tongue to disengage wing lock.

Figure 16

CFM: Wing Unlock

(Hydraulic Hitch Only)

28483

Re-Phase Fold Cylinders

8. The fold system uses re-phasing cylinders. It is necessary to re-phase cylinders so wing gauge wheels run in their fully rotated positions in front of planter. To re-phase fold cylinders: Move and hold lever for Marker/Fold in Fold direction (typically Extend) for 30 seconds. This causes wings to push against the tongue transport hooks .

Partially Unfold

Refer to Figure 17

9. Reverse fold circuit lever until wings clear transport hooks by a few feet.

Lower Tongue

10. Lower 3-point hitch or hydraulic tongue to planting position. See page 17 and page 147 for correct hitch height and depth control settings. If hydraulic tongue, set CFM Lift/Hitch switch to Lift.

Figure 17

Wing Hook & Wing Lock

22815 27288

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22 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Fully Unfold

Refer to Figure 18

11. Unfold the planter fully to planting position. Unfolding is complete when the large roller bushing on top of the tongue is engaged by the tongue safety latch .

Planter Damage Risk:

Failure to lower the tongue before unfolding WILL result in opener or seed delivery system damage. Press wheel assembly components can strike air system components near the air box manifold.

Planter Damage Risk:

Do not plant if the tongue latch is not fully down over the roller. Frame and opener damage is likely if the planter is operated with the latch open.

Remove and Store Transport Locks

The planter needs to still be in full lift to remove these locks.

Remove/Store Center Lift Locks

Refer to Figure 19

12. Remove lock channels from vertical cylinders above pivots.

Refer to Figure 19 and Figure 20

13. Store lock channels horizontally on tabs at top right side of lift cylinder weldment.

Figure 18

Tongue Latch Engaged

28488

Figure 19

Frame Lift Locks

29738

Figure 20

Lift Cylinder Lock Stored

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Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 23

Remove/Store Caster Lift Locks

Refer to Figure 21

14. Remove transport lock channels from lift cylinders located on gauge wheels.

Refer to Figure 21 and Figure 22

15. Transfer lift cylinder transport lock channels to their storage positions .

Unfold Closeout

16. As appropriate for the next planned activity, activate lift hydraulics and lower planter.

17. To disable fold hydraulics, and lock caster armsa in ﬁeld position, set CFM Marker/Fold switch to “Marker”.

Note: Set switch to “Marker” even if Markers are not

installed. This switch position disables all fold solenoid valves.

Figure 21

Caster Lift Cylinder Lock

29737

Figure 22

Transport Cylinder Lock Storage

27290

Figure 23

CFM After Unfold

28485

a. YP1125A s/n A1154K+ and YP1625A s/n A1172B+

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24 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Raising/Lowering Planter

The planter mainframe raises and lowers independently of the tongue.

• The planter may be fully raised at any time (and must be raised for folding).

• The planter may be lowered onto its transport lock channels at any time.

• The planter may be fully lowered, with lock channels removed, only when unfolded.

Refer to Figure 24

The CFM “CLUTCH” switch positions are not shown because they normally require no attention during lift or lower. Lifting the planter automatically disengages the entire drive system.

The “Fert.Pump” switch has no function on YP1225A & YP1625A planters as shipped by Great Plains because the optional fertilizer system for these planters uses a ground-drive pump that has no electrical control.

Leave or set the CFM Marker/Fold switch in “Marker” position to prevent unintended folding.

Figure 24

CFM for Lift/Lower

If your planter has an aftermarket pumping system compatible with the IntelliAg® system, the “Fert.Pump” switch may require operator attention during lift/lower.

28485

Raising Planter

The planter may be raised at any time.

1. Set the CFM “Lift/Hitch” switch to Lift to enable the

lift cylinder circuit.

2. Move the Lift/Hitch circuit lever to extend the lift

cylinders.

3. Set the circuit to Neutral to hold the planter at lift.

The switch may be left in the “Lift” position.

4. Install lock channels if raising for transport, parking,

storage, adjustments or maintenance.

Lowering Planter

If lock channels are installed, the planter may be lowered at any time. if lock channels are not installed, lower only when unfolded, such as for ﬁeld turns.

Install lock channels (page 23) as appropriate for next activity.

1. Set the CFM “Lift/Hitch” switch to Lift to enable the

lift cylinder circuit.

2. Move the Lift/Hitch circuit lever to retract the lift

cylinders until settled on lock channels or fully lowered to ground.

3. Set the lift circuit to Neutral for ﬁeld operation. The

switch may be left in the “Lift” position.

Lowering Planter Hazard:

Use transport locks. A raised planter slowly lowers when held up solely by circuit neutral. Anyone beneath the row units could be trapped and injured. Rely on circuit neutral to hold the planter raised only for brief periods, such as ﬁeld turns and during lock channel installation. Use lock channels at all other times.

Note: After every few hours of operation (or earlier, if

uneven lift is observed), re-phase the lift circuit. At a lift operation, hold the circuit in Extend for 30 seconds.

Crushing Hazard:

Keep all persons away from frame sections during lift and lower. Area under row units is particularly dangerous. Sharp coulter and opener blades descend with hundreds of pounds of down-force.

Note: Unless lock channels are installed, lower the

planter only when fully unfolded. Lowering when folded is prevented by the transport locks.

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Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 25

Re-phasing Lift System

Over a period of normal use the cylinders may get out of phase. This will cause some planter sections to run higher than others. If this is the case, it will be necessary to re-phase lift cylinders.

Note: Lift cylinders can only be re-phased when planter is

unfolded.

To re-phase cylinders:

1. Raise the implement completely and hold the hydraulic remote lever on for several seconds until all cylinders are fully extended. Do this every 8 to 10 times you raise planter out of ground.

2. When all cylinders are fully extended, momentarily reverse hydraulic remote lever to retract system

⁄2inch to maintain levelness.

Folding the Planter

The planter must be raised for folding. The tongue is raised and lowered during the sequence.

The distance between the tractor and the seed structure increases by about 10 feet (3 m) during folding. Planter, tractor, or both will move during this operation.

Pinch Point and Crushing Hazard:

To prevent serious injury or death:

▲ Fold only with planter raised and lock channels installed.

▲ Fold only if hydraulics are bled free of air and fully charged

with hydraulic oil.

▲ Stay away from frame sections when they are being raised

or lowered.

▲ Keep away and keep others away when folding or unfolding

planter.

▲ Fold markers onto cradles before folding planter.

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26 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Shut off Fan and Hydraulic Drive

1. Set circuit levers for seed box fan and optional hydraulic meter drive to Neutral.

Set Tractor and Tongue

2. Raise and move planter to a level area.

3. If tractor movement during folding is not desired, put tractor in Park and/or set parking brake.

4. This step is slightly different depending on hitch type:

Prepare 3-Point Hitch for Fold

a. Fully lower 3-point hitch. Continue at step 5.

Figure 25

CFM: Prepare Hitch for Fold

28487

Prepare Hydraulic Hitch for Fold

Refer to Figure 25

a. Set CFM Lift/Hitch switch to “Hitch”.

b. Retract hitch cylinder to fully lower tongue.

Raise Planter

Refer to Figure 26

5. Set CFM Lift/Hitch switch to “Lift”.

6. Activate circuit lever to extend lift cylinders until planter is fully raised.

7. Set circuit to Neutral to hold at lift.

8. On hydraulic hitch, return switch to “Hitch”.

9. Put tractor in Park and/or set parking brake, and shut off tractor.

Install Lock Channels

Only wing (gauge wheel) lock cylinders need to be installed for transport. The center is adequately supported by the wing hooks and locks when folded.

For servicing, or to hold at lift when unfolded, also install center section lift locks (see page 89)

Refer to Figure 27

10. Remove lift cylinder transport lock channels from their storage positions.

11. Place transport lock channels on lift cylinders located on gauge wheels.

Equipment Damage Risk:

Tongue must be lowered at start of fold to ensure that press wheel assemblies remain clear of air system.

Figure 26

CFM: Raise Planter

28484

Figure 27

Transport Cylinder Lock in Use

401-625M Table of Contents Index 2013-08-13

29737

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 27

Activate Fold Solenoid Valves

Refer to Figure 28

12. Set CFM Marker/Fold switch to “Fold”. This opens the solenoid valves for tongue lock, fold cylinders and caster arm

cylinders.

Begin Folding

13. Extend the fold cylinders and fold the planter until the wing tubes are within a few feet (a meter or so) of the tongue.

Raise Tongue

14. Raise 3-point hitch or hydraulic hitch until wing hooks on tongue clear locks on wings.

4 5

Complete Fold

15. Continue or resume folding until the wing locks contact lock plate (under hooks).

16. Set CFM Marker/Fold switch to “Markers”.

Note: When folded, set the “Marker/Fold” switch to

“Marker”, whether Markers are installed or not. In this position, the switch disables all solenoid valves for fold, locking the fold system.

Lower Tongue

17. Lower 3-point hitch or hydraulic tongue until wing hooks rest on wing locks.

Re-phasing Fold System

Over a period of normal use, the cylinders may get out of phase. This is evident by wing gauge wheels not running in their fully rotated positions in front of the planter.

Note: Planter must be folded to re-phase fold system.

See “Re-Phase Fold Cylinders” on page 21.

Figure 28

CFM: Commence Fold

28484

Figure 29

Wing Hook & Wing Lock

22815 27288

a. Feature on YP1225A s/n A1154K+ and YP1625A s/n A1172B+ planters.

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28 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Transporting

The tractor must weigh at least 2/3 (67%) of the planter plus any materials loaded. See table below for typical planter weights. Have your planter weighed if the tractor capability is not clearly above requirements.

Before transporting, follow and check these items:

• Set the tractor 3-point hitch control for depth control operation. If the 3-point hitch control is set for load control, the auto load control response may automatically adjust too high in some circumstances, causing the wing locks to disengage on the road.

• Empty seed box. Empty seed box before transporting if at all possible.

• The planter can be transported with a full box of grain, but the added weight increases stopping distance and decreases maneuverability.

• Transport planter only while in folded position. Refer to “Folding the Planter” on page 25 and make sure cylinder lock channels are in place.

• Warning lights. Always use warning lights when transporting the planter.

• Road rules. Comply with all national, regional, and local safety laws when traveling on public roads.

• Clearance. Remember that the planter is wider than the tractor. Allow safe clearance.

• Transporting with Markers. Always transport markers in the folded position. Make sure second marker section rests securely on transport carrier.

Loss of Control Hazard:

Do not exceed 20 mph (32 km/h). Use a tractor rated for the load. Towing the planter at high speeds or with a vehicle that is not heavy enough could lead to loss of vehicle control, resulting in a serious road accident, injury and death.

Weights of Representative Planter Configurations

Base Planter Weight

Typical Empty Standard* Planter

Typical Full Standard* Planter

Typical Empty Maximum* Planter

Typical Full Maximum* Planter

-1230 -16TR36 -1820 -2315 -24TR -1670

15540 lb 16410 lb 16850 lb 17940 lb 18160 lb 7570 kg

16400 lb 17280 lb 17710 lb 18800 lb 19020 lb 7960 kg

21650 lb 22530 lb 22960 lb 24050 lb 24270 lb 10340 kg

18460 lb 19560 lb 20120 lb 21500 lb 21780 lb 9000 kg

28500 lb 29610 lb 30170 lb 31550 lb 31830 lb 13560 kg

Note: the weight of a specific planter

can vary significantly.

Base Planter Weight

Typical Empty Standard* Planter

Typical Full Standard* Planter

Typical Empty Maximum* Planter

Typical Full Maximum* Planter

* Typical Standard conﬁguration is: markers, 82 bushel hopper, no fertilizer, no coulters

Typical Maximum conﬁguration is: markers, 82 bushel hopper, starter fertilizer system, UM coulters

401-625M Table of Contents Index 2013-08-13

-1236 -1630 -2420 -24TR36 -3115 -32TR

15800 lb 16670 lb 18420 lb 18420 lb 19940 lb 20160 lb

16660 lb 17530 lb 19280 lb 19280 lb 20810 lb 21030 lb

21910 lb 22780 lb 24530 lb 24530 lb 26060 lb 26270 lb

18720 lb 19830 lb 22050 lb 22050 lb 23990 lb 24270 lb

28770 lb 29880 lb 32100 lb 32100 lb 34040 lb 34320 lb

YP1225A- YP1625A-

YP1625A-

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 29

Loading Materials

The YP1225A & YP1625A planters accept the Great Plains 82 bu. hopper,150 bu.

hopper, or bulk seed

boxes that meet the PioneerbPROBOX® speciﬁcation.

Material Loading Overview

• With hoppers, seed is loaded from above, with the hopper already mounted on the planter.

• With a bulk seed box, seed is pre-loaded by the seed supplier, and the box is mounted on the planter already loaded.

• If the optional fertilizer system is installed, liquid fertilizer is normally pumped in from below via the quick-ﬁll system, but may also be gravity-loaded from above with the tank caps removed.

Tipping and Overload Hazard:

Place or remove a hopper only when empty. A full hopper can weigh between 5,000 and 10,000 lbs (2700-4500 kg), which is above the lifting and balance capability of most tractors and farm forklifts.

Mounting a Hopper or Bulk Seed Box

These steps cover mounting a hopper or seed box on a planter that has no seed container. If a seed container needs to be removed ﬁrst, see page 34.

1. Move the planter to an area of level ground and

sufﬁcient room to maneuver a tractor or fork-loader.

2. If changing between hopper and bulk seed box, use

the Accessory Sensor Setup menu on the seed monitor console to disable the hopper sensor and avoid nuisance alarms. See DICKEY-john® Quick Start Guide.

3. Place tractor in park, shut off engine, and remove the

key. If using the same tractor for container mounting, block the planter transport tires.

Refer to Figure 31

4. Remove the walkboard lock pin .

Refer to Figure 32

5. Swing walkboard all the way to the right.

Figure 30

82 bu. and 150 bu. Hoppers,

and a Bulk Seed Box

Figure 31

Walkboard Lock Pin

29486

24010

Figure 32

24005

Walkboard Open

a. The 150 bu. hopper is incompatible with on-board fertilizer tanks.

b. PROBOX

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is a registered trademark of Pioneer Hi-Bred International, Inc.

30 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Refer to Figure 33

6. Secure walkboard with keeper.

Note: If planter is lowered, walkboard will stay open by

itself once fully opened. There is a keeper near the walkboard pivot that can hold the walkboard open in all conditions.

Refer to Figure 34

7. Remove pins at the corners of the airbox frame.

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 clean-up. Prolonged inhalation may cause lung injury. Product can become slippery when wet.

8. When using a bulk seed box, new meters for the ﬁrst time, or at the start of each season, measure out approximately 4 gallons (15 liters) of seed into a pail. Add1⁄2cup (120 ml) of Ezee Glide Plus seed lubricant to the pail. Mix and pour into air box before mounting hopper.

Flow Inconsistency and Stoppage Risk:

Ezee Glide Plus is mandatory for all seed, especially treated or inoculated seed. Failure to use this seed lubricant as recommended can cause inconsistent seed ﬂow to meters, and clogging at meters. See “Seed Lubricant” on page 111.

Note: On a new planter, the interior surfaces of the seed

hoses are somewhat tacky until they are coated with seed lubricant. Before planting for the ﬁrst time, and at the start of each season, add1⁄3cup (80 ml) Ezee Glide Plus seed lubricant to bottom of airbox.

Note: The monitor system includes a level sensor located

below hopper to warn when box is empty. This typically provides three to four acres (1.2 to 1.6 ha) of run time before rows start going empty.

9. At the airbox seed inlet, inspect the seals for wear and damage.

10. If mounting a seed box, add Ezee Glide Plus to the seed box at this time. It may be easier to add it while the box is still at ground level.

Figure 33

Walkboard Keeper

Figure 34

Airbox Frame Corner Pin

29485

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Tipping and Overload Hazard:

Make sure your tractor or fork lift is rated for and conﬁgured to lift the hopper or bulk seed box. A full bulk seed box can weight over 2500 lbs. Do not let anyone stand under or in front of the elevated seed box.

Refer to Figure 35

11. Approach the hopper or seed box from the back (the side with the slide gate). Align the forks with the slots in the rear of the seed box or hopper and slowly drive forward until forks are completely under the seed box or hopper.

Note: Bulk hopper frame has two sets of lifting points.

One set is for normal loading and is tubes. The other set is to allow picking it up from the side for placing in storage near a wall.

Note: It may be necessary to adjust the seal on top of air

box to getfull contact with the bottom of seed box or hoppers. This is a one-time adjustment.

Figure 35

Approaching Hopper

25255

Refer to Figure 36

12. Slowly lift the full seed box or empty hopper, and place it in the planter airbox frame.

13. Install the box retaining pins in frame corners.

Refer to Figure 37

14. Unless you are at the ﬁeld to plant, close the slide

gate at the base of the hopper.

15. Return the walkboard to the closed position and install the latching pin.

16. If installing an empty hopper for planting, load seed (and lubricant). Otherwise, skip to step 24 on page 33.

Figure 36

Fork-Lifting Seed Box

24037

Figure 37

29495

Hopper Slide Gate Closed

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Loading Hopper with Seed

Refer to Figure 38

17. At the top of the hopper, release the lid latch(es) . and open the lid(s):

18. Check that the strainer basket is clean and in place.

Do not operate without a strainer:

It is an important safety feature that prevents accidental entry into the hopper. It also prevents larger foreign matter from clogging the air system.

19. Inspect the hopper itself to ensure that it contains only expected material.

Refer to Figure 39

If using an auger to load seed, access to the top of the hopper is eased by swinging down the top section of the center walkboard railing.

20. At each end of the swing-down section, pull the cross pins inward until the pins clear the holes . Swing the railing section in or out (it is easier to close if swung in).

5 6

Figure 38

Hopper Latch and Strainer

29487

Using Auxiliary Hydraulic Circuit

The optional auxiliary hydraulic kit includes a manual valve that diverts the marker hydraulic circuit to a pair of quick-connect ports at the back of the seed cart.

Refer to Figure 40

A. Extend or fold any marker that is raised. Return the

cab control for that circuit to “off”.

B. Close any shut-off valve on your auger, and connect

the auger to the auxiliary quick-connect ports at the back of the seed cart.

C. At the auxiliary selector valve (near marker

sequence valve on left wing), move the handle from “Marker” to “Auxiliary”.

D. With no seed present, open the auger shutoff valve,

and operate the cab control to determine which setting (“extend” or “retract”) turns the auger in the correct direction for seed lift.

Figure 39

Walkboard Railing

Figure 40

Auxiliary Hydraulic Ports (Option)

29488

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E. Load seed. Shutoff cab circuit, then auger. Return

Aux valve control handle to “Marker” position.

F. Disconnect auger hydraulic hoses at Aux ports.

Refer to Figure 42 and Figure 43

21. Load seed. Cross-check the expected amount against the indicator marks molded into the side of the hopper. The ﬁgures at right show the approximate capacity by ﬁll depth.

22. Connect optional hopper level sensor to monitor harness.

For planters equipped with optional 82 bu. or 150 bu. hoppers, an extra level sensor is included. Use Figure 42 or Figure 43, showing capacity, to place it at the level that suits your operation. The hopper sensor is in addition to the air box manifold level sensor.

23. Close and latch lid(s).

Seed Loading Close-Out

24. If at the planting ﬁeld, open the slide gate.

Figure 41

Marker/Aux Valve Set to Aux.

Approximate capacity of 82 bu./2890 liter hopper, at 10in/25.4cm increments

Figure 42

82 bu. Bulk Hopper

Approximate capacity of 150 bu./5290 liter hopper, at 10in/25.4cm increments

28492

bu liters 82 2890

69 2400

47 1660

26 920

10 350

1.75 60

22958

bu liters 150 5290

132 4650

94 3310

55 1940

22 780

6 210

0.7 20

Figure 43

22958

150 bu. Bulk Hopper

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Dismounting a Hopper or Seed Box

1. Move the planter to an area of level ground and sufﬁcient room to maneuver a tractor or fork-loader.

2. Place tractor in park, shut off engine, and remove the key. If using the same tractor for container dismounting, block the planter transport tires.

3. Remove the walkboard lock pin (page 29).

4. Swing the walkboard completely open and secure with keeper (page 30).

5. For hoppers with optional level sensors, disconnect the sensor lead at the harness.

Refer to Figure 44

6. Remove pins at the corners of the airbox frame.

7. Close the slide gate at the base of the hopper or seed box.

8. Approach the hopper or seed box from the back.

9. Slowly lift the full seed box or empty hopper, and back it away from the planter airbox frame.

10. Return the walkboard to the closed position and install the latching pin.

11. If changing between hopper and bulk seed box, use the Accessory Sensor Setup menu on the seed monitor console to disable the hopper sensor and avoid nuisance alarms. See DICKEY-john® Quick Start Guide.

12. If not installing another seed container, cover the airbox inlet with plastic sheeting and secure with tape or bungees.

Figure 44

Seed Box Pins

Tipping and Overload Hazard:

Verify that the hopper or box is empty, or calculate the weight. Use a tractor or fork lift rated and conﬁgured for the weight. A full seed box can weight over 2500 lbs. Do not attempt to dismount a full hopper. Do not let anyone stand under or in front of the elevated seed container.

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Fertilizer Tanks (Option)

Agricultural Chemical Hazards:

Observe safety precautions speciﬁed by material suppliers. Some chemicals can cause serious burns, lung damage and death. Avoid contact with skin or eyes. Avoid prolonged breathing of chemical fumes. Wear respirator and other protective equipment as required by chemical manufacturer. Seek medical assistance immediately if accident occurs. Know what to do in case of an accident.

Filling Tanks

Refer to Figure 45

1. Connect nurse-tank hose to quick-ﬁll coupler located behind the right-hand tank. Lock hose in place with cam-lock levers.

2. Close valve going to the in-line ﬁlter located just before the pump.

3. Open valves at each tank and at quick-ﬁll coupler.

4. Fill tanks, then close valve at quick-ﬁll coupler, and disconnect the nurse tank hose.

Note: Always close valve at ﬁlter when ﬁlling or storing

any liquid in tanks. Failure to do so may allow material to run out of manifold (boom) outlets causing contamination from spillage.

Note: Always ﬁll fertilizer tanks to equal levels. If one tank

ﬁlls more quickly, shut that tank valve off to raise the level in the other tank.

Ground Drive Pump

The liquid fertilizer option uses a ground drive positive displacement pump. For pump operation and pump maintenance, refer to the pump manual, supplied in the liquid fertilizer option package. For fertilizer settings, see the Seed Rate manual.

Stratiﬁcation and Plugging Risk:

Apply fertilizer soon after material loading. Clean out unused materials promptly. Fertilizer allowed to remain in the tanks for an extended period can settle, resulting in excessive and insufﬁcient concentrations during application. System plugging can also occur.

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Figure 45

Quick-Fill Coupler

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Field Setup Checklist

Use the following checklist as a guide to ensure the planter is properly setup before using.

ELECTRICAL Page

All connections made 17

Check all lights

Power up monitor. Watch for diagnostics. PDC

Verify Material, Rate and “SPLIT AIR” Channel setup. Verify Channel setup for hydraulic drive (Option).

HYDRAULIC Page

Tractor reservoir full

Marker/Aux valve to Marker (Option) 44

All hydraulic circuits connected 15

Fan direction and rpm 42

Hydraulic drive connectiona (Option)

Raise tongue. Lift planter 17

Begin unfold 20

Re-phase fold system 21

Lower tongue 21

Unfold wings. Check for tongue lock. 22

Re-phase lift cylinders 25

Check marker operation 44

Inspect for hydraulic leaks 3

a. Perform a “FILL DISK” operation via the seed monitor.

MECHANICAL Page

Tongue height preset on 3-point 17

Set tractor 3-point hitch to “depth control” operation (and not load control)

Side to side levelness at gauge wheels 147

Toe-in of wing frames at pull-bars 148

Tongue hook latch operation 22

Marker extension and disk angle set 150

QSG PDC

To complete checklists, you may need to refer to the: SRM: Seed Rate Manual (SRM), PDC: DICKEY-john® Planter/Drill Control manuals, or QSG: DICKEY-john® Quick Start Guide

AIR SYSTEM Page

Manifold to PROBOX® or poly hopper seal. 30

Y-splitters turned off for unused rows. 71

Blank disks installed at unused rows. 72

Air leaks (small leaks from PROBOX® are normal).

Hose routings, no sags and no pinched hoses. (Check folded and ﬁeld positions.)

Hoses fully connected to meters and locked.

Start fan. Turn on seed monitor active air control. Watch for split air vane movement or air pressure changes.

Activate the “FILL METER” function of the monitor. Watch for air vane movement, or watch meter pressurization go to zero.

On a new planter, pre-lubricate the air system with Ezee Glide Plus.

Set the meter pressurization target to the recommended value for the crop.

PDC

ROW CLEANERS Page

Check for correct installation of row cleaners on all rows if equipped.

Check that row cleaners do not catch on hydraulic hoses.

Carefully watch when folding and unfolding planter the ﬁrst time to ensure clearance of row cleaners.

FERTILIZER Page

Set rate drive sprockets for correct rate. (Note fertilizer rate is population dependent.)

Check for correct oriﬁce plates. SRM

Check unused rows are correctly closed off. SRM

Fill system 1/2 full with water and check for leaks (run pump if possible).

Disconnect drive chain if fertilizer is not used.

Check all row unit lines are connected and discharge nozzles or tubes are clear.

SRM

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METER DRIVE Page

Check all chains are lubricated, proper tension and move freely without kinks or tight spots (very important for even metering)

Ground Drive only: Set range & transmission sprockets for desired rate.

Check contact wheel gap. 50

Check contact wheel tire pressure. 127

Check action of contact wheel when raising and lowering, that it makes contact at ground height.

Lubricate slider joints on drive shafts if not already done.

Check operation of electric clutches for point rows.

137

SRM

107

ROW UNITS

Preset depth handles to 7 holes showing above “T”

Preset down force springs to 1st notch (lightest) setting for most conditions, 2nd notch otherwise.

Set all unit mounted coulters to1⁄4in (6mm) above opener blade depth.

Check coulter alignment to row.

Check closing wheel alignment. 76

Set closing wheels to ﬁrst notch (light). 76

Check scraper gaps (option). 67

Lock up splitter rows if needed. 73

Check action and contact of side depth wheels.

SEED METERS Page

Ezee Glide Plus in seed. 30

Correct seed disks installed for crop, seed size and cell count (and blank disks in unused rows)

Inlet shutter set to chart value 69

Check timing of meters in Twin Row corn. SRM

Monitor Operation

For monitor operation in the ﬁeld, refer to the DICKEY-john® Planter/Drill Control manuals supplied with this unit, and the Seed Rate manual.

The DICKEY-john® Planter/Drill Control manuals are supplied as two volumes, identiﬁed as User Level 1 and User Level 2/3, which correspond to access levels in the monitor menus.

User Level 1 includes items controlled by the tractor operator during planting.

User Level 2 is password-protected, and includes planter conﬁguration settings, and some other setup items.

User Level 3 is for dealer and Great Plains use only.

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Electric Clutch Operation

Refer to Figure 46, which depicts the left planter side on and the right side shut off.

Electric clutches allow for turning planting off while the planter is lowered. When the planter is raised, clutches are always

A clutch for each drive shaft allows for independent control of each side of the planter. The clutches are controlled via the CFM “CLUTCH” switches.

For regular ﬁeld operation, turn “MASTER” , “Left” and “Right” clutch switches to the “ON” position. This activates the magnet on each clutch and allow clutch shafts to rotate.

To shut off planting on one or both sides to accommodate point row while planter is lowered, switch either to “OFF” position. Turning the MASTER switch off disengages both sides. If the planter has hydraulic meter drive, MASTER off also shuts down the drive motor.

Electric Clutch Lockup

Refer to Figure 47

In case of electric clutch failure, electric clutches can be locked in the engaged mode using metric bolts stored in the brace plate above each clutch.

1. Remove rubber plugs from oil shield to gain

2. Align cutouts at bolt holes .

3. Insert M8-1.25×14 mm long metric bolts .

Note: Use only 14 mm length bolts as provided or

4. If you observe half the hole obstructed by a metal

5. Replace oil shield plugs.

If the entire hole is obstructed by a metal disc , you are not at a cutout.

When at a cutout, the bolt will screw in with minimal resistance until the bolt head reaches the clutch face.

off, due to the lift switch.

1 2

access to bolts .

machine damage can occur. Longer bolts will damage the clutch. Shorter bolts may not effect a lock-up.

disc , you are not at a cutout.

Figure 46

CFM: Point Row

Figure 47

Electric Clutch Lockup

28490

29329

Clutch Slippage Risk:

Keep oil shield and oil shield plugs in place. Do not allow lubricant to enter the clutch when lubricating the planter. If clutches slip, operate with clutch lock-up until overhaul or replacement of clutches.

a. On planters with hydraulic drive, the seed monitor overrides the lift switch during “FILL DISK” and “5 REV TEST” operations.

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Clutch Plate Nearly at Cutout

Figure 48

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Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 39

Hydraulic Drive Operation (Option)

Refer to Figure 49

The hydraulic drive option replaces the standard contact wheel ground drive with a hydraulic motor , as the power source for meter rotation.

The drive requires a separate closed center hydraulic circuit capable of 4.5 gpm (17 lpm). A check valve at the motor prevents reverse operation, should the connections be reversed at the tractor, or the circuit lever reversed.

When the hydraulic circuit is active, a solenoid valve controls ﬂow to the motor, as the “Planter Channel” of the seed monitor. Refer to the DICKEY-john® Planter Drill Control manual, User Level 2/3.

When the planter is raised in normal ﬁeld operations, the lift switch causes the seed monitor to shut off hydraulic ﬂow to the motor. You can override this shutoff, and operate the drive while raised, using special seed monitor modes:

• In User Level 1, the “FILL DISK” operation runs the

motor for one meter disk revolution.

• In User Level 2, the “5 REV TEST” operation runs the

motor for ﬁve meter disk revolutions.

A ﬁlter in the system requires periodic maintenance.

See “Hydraulic Drive Maintenance” on page 99.

If there is no meter rotation when expected, the circuit lever or connections may be reversed. Also check for solenoid valve problems, such as a disconnected lead, and any seed monitor diagnostic messages.

To Tractor

Figure 49

Hydraulic Drive

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Air System Operation

Figure 50

Yield-Pro® Air System for Air-Pro® Seed Metering

Meter Pressurization System Elements ( shows air direction)

1 7 13

Hydraulic Fan Pressure Sensor Lines Air-Pro® Seed Meter

2 8 14

Split-Air Manifold Pressure Sensor Chamber Row Pressurizing Tubes

3 9 15

Servo-Controlled Vane Feedback Signal Line Row Unit Seed Tube

4 10 16

WSMT Servo Programming Air Box & Seed Manifold IntelliAg® Console

5 11

Priority Meter Pressurization Air Seed Delivery Hose

6 12

Excess Air to Air Box Air Release Screen

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Air System Overview

2 3

12 13

There are console menus for adjustment of metering air, and manual fall-back modes.

In the case of insufﬁcient fan air, or signiﬁcant seed delivery air leaks, seed ﬂow may be irregular or stop.

Meter Pressurization is displayed by a mechanical

gauge, and by sensors connected to the seed monitor system. As these sensors measure pressure at similar locations, they generally agree.

If seed delivery air ﬂow is insufﬁcient, the indication will be low seed rate alarms. If fan speed and direction are as recommended, check for air leaks in the seed delivery system.

When the meter inlet is ﬁlled, and seed ﬁlls the tube above the inlet, the screen becomes blocked by seed, shutting off air ﬂow to that meter. As the meter consumes seed, the screen becomes exposed, air resumes ﬂowing, carrying more seed from the air box manifold to the meter.

Several rows have pressure sensor ports for the meter pressurization system. Use of the special blank disk is particularly important when one of these rows is shut off. Running a normal disk with no seed causes the air system to over-compensate.

The hydraulic fan supplies air for both seed delivery and meter operation. Fan rpm is operator-adjusted (page 43) via the tractor’s hydraulic ﬂow control, and reported by the seed monitor system. The rest of the system is fully automatic.

At the split air manifold , a rotary actuator operates a vane, under the control of software in the WSMT , which regulates the air diverted to the meter pressurization system .

Air not used for metering (typically just under half of it) ﬂows to the air box for bulk seed delivery. Air pressure in the seed delivery system is not presently reported. The meter pressurization air has priority, and can take all the air.

Several rows have lines to sample metering air pressure, which is measured in a sensor chamber . The sensor reading is fed back to the WSMT for closed-loop pressure control. No operator adjustment is required for the metering air system.

At the air box , air is mixed with seed from the bulk hopper or PROBOX®, and ﬂows out air box manifold ports into primary seed hoses to the rows. Y-tubes (not shown) may split primary hoses into secondary hoses to rows.

An air release screen above each Air-Pro® meter vents the delivery air. The vent has two functions:

1. It releases delivery air while retaining the delivered seeds.

2. It is a passive control gate for bulk seed delivery.

Note: It takes about a minute to initially ﬁll the meters.

Separate pressurization tubes provide the air to the meters that holds the seed in disk cells until released to the seed tubes .

A detector in each seed tube reports seed passage to the seed monitor system, which reports counts and rates on the console .

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Fan Circuit Operation

See also “Fan and Meter Pressurization Adjustment” on page 51.

Refer to Figure 51

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 14.

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 11⁄16inch low back-pressure QD coupler set. Install the receptacle on a tractor sump port, and not at a normal remote return port. The unusual size aids in ensuring correct connection, so that the motor return line handles high volume at low back-pressure, ensuring full motor performance.

3. Connect the motor inlet line to a tractor remote

capable of the ﬂow rates shown at “Recommended Initial Fan Speeds” on page 43.

4. The fan hydraulic circuit includes a check valve ,

which provides a relief path for oil at motor shutoff. The resulting low fan rpm provides strong indication reversed connection.

Correct fan direction is shown at .If reversed fan is

suspected, observe it during shutoff, as the direction of motion is easier to see at lower rpms as it slows to a stop (initial startup is virtually instantaneous, making observation at start difﬁcult).

Fan speed is controlled by the tractor circuit (and not the seed monitor). Fan rpm is reported by the seed monitor console.

Figure 51

Hydraulics at Fan

If the fan is connected in reverse, it may not run at all (due to no oil source at the return connection). If oil is present, oil bypass at the check valve prevents the

fan from reaching operating rpms. A reversed fan is incapable of providing sufﬁcient air ﬂow for planting.

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Fan General Operating Information

Use tractor remote hydraulic valve ﬂow control to set fan speed. Always start the fan with a low ﬂow setting.

Monitor fan rpm with the seed monitor.

Gradually bring fan up to the recommended initial rpm. The split-air servo vane engages only above 50 rpm.

Do not run the fan over 3100 rpm (on model YP1225A), over 3500 rpm (on model YP1625A) or speeds under 2000 rpm.

At excessive rpm, too much air ﬂow can cause:

• seed to plug the air box

• seed suspension in a bulk seed box

• unstable split air control

• oil heating

• slow lift times

If the rpm is too low, the split-air system may divert nearly all the air to the meter pressurization, leaving none for seed transport (or just enough to plug low spots in seed hoses).

The monitor console can report meter pressurization. There is also a Magnehelic® air pressure gauge. These two readings should not disagree by more than a few tenths of an inch.

Note: The Seed Rate manual provides initial values for

meter pressurization. Normal readings are in the

0.8 inches to 4.0 inches H2O range, and vary considerably with crop.

If at suggested fan rpm, desired pressure cannot be reached, chances are the fan is running backwards. If the rpm and meter pressurization readings are correct, but the meters are starved of seed, the fan may be running backwards and the meter pressurization system is taking all the air, leaving little or none for seed delivery. Reverse the inlet/return lines at the hitch.

If air system does not operate suitably with fan speeds between 2000 and 3500 rpm, “Seed Delivery Troubleshooting” on page 84.

Note: During “FILL METER”, all air is routed to the air

box, and none to the meter pressurization system.

Steps for setting and adjusting the air system are found at “Fan and Meter Pressurization Adjustment” on page 51.

Recommended Initial Fan Speeds

YP1225A YP1625A

Bulk Seed Hopper* 2300 rpm 2700 rpm PROBOX 2100 rpm 2500 rpm

* This assumes a 2007+ Great Plains hopper, or older hopper with the vent line update. For an older unvented hopper, use the rpms recommended for ProBox.

At operating speeds, typical oil flows are in the range:

Ground Drive Planters:

8-10 gpm (30-38 lpm) for YP1225A 10-12 gpm (38-45 lpm) for YP1625A

Hydraulic Drive Planters:

12-14 gpm (45-53 lpm) for YP1225A 14-16 gpm (53-61 lpm) for YP1625A

The figures above do not include oil for lift/lower or for marker operation.

Low Population Risk at Turns:

The ﬁgures above do not include oil for lift/lower or oil for marker operation. Aggressive lift/lower operations, and simultaneous lift/marker operations, can reduce fan rpm below that needed to pressurize meter disks. If seed falls out of pockets, low population bands will occur shortly after turns.

Unless the tractor has generous oil ﬂow capacity, raise/fold markers before lift, and lift slowly. Watch manifold pressure and tune operations to keep it at planting levels in turns.

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Marker Operation

Electrocution Hazard:

Check for overhead lines before operating markers. If a marker contacts an electrical line, all metal parts of the planter and tractor can have lethal voltages present. There may be no indication of this condition until a person completes the circuit to ground. At higher voltages, electrocution can occur without direct contact.

Before operating markers, make sure they are properly bled as described in “Bleeding Hydraulics” on page 97.

For markers to operate, the marker hydraulic circuit must be enabled:

Refer to Figure 52

1. On the CFM switch panel, set the “Marker/Fold” switch to Marker. Leave this switch in “Marker” position for all ﬁeld operations. It also acts to lock the folding system when in “Marker”.

Refer to Figure 53

2. If the planter is equipped with an auxiliary hydraulic system, set the selector valve (found near the sequence valve at the marker base on the left wing) to “Marker”.

Dual markers are equipped with a sequence valve to control lift sequence. Starting with both markers up, the sequence is:

1. Activate tractor hydraulic lever; right marker lowers while left marker stays up.

2. Reverse hydraulic lever; right marker raises while left marker stays up.

3. Activate hydraulic lever; left marker lowers while right marker stays up.

4. Reverse hydraulic lever; left marker raises while right marker stays up.

5. Pattern repeats.

Folding speed of dual markers is adjusted with adjustment screws on sequence valve body. Because excessive folding speed may damage markers, adjust markers to a safe folding speed according to “Marker Adjustments” on page 56.

Note: To get both markers in the lowered position at the

same time, activate hydraulic lever to lower one marker. After marker is lowered, move lever to opposite position then quickly reverse lever and hold until other marker is lowered.

Figure 52

CFM: Markers Enabled

Figure 53

Aux Valve Set to Markers

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Field Operation

Perform all steps in “Pre-Start Checklist” on page 19 and “Field Setup Checklist” on page 36.

PDC: DICKEY-john® Planter/Drill Control manuals SRM: Seed Rate manual

First Pass Operation Checklist Page

1. Set planting rate. 49

2. Unfold marker on next-row side. 44

3. With tractor at high idle, set fan hydraulic circuit to low ﬂow, engage circuit. Gradually adjust fan hydraulic ﬂow to obtain recommended rpm.

4. Set or verify meter pressurization value. SRM

5. Engage optional hydraulic seed drive via seed monitor.

6. In the CLUTCH cluster of the CFM, set all switches, including Master, to ON.

7. Pull forward, lower planter, and begin planting for a short distance.

8. Stop. Assess: planting depth, skips or doubles (see sidebar and page 51), seed spacing (to verify population), press wheel operation and fertilizer application (if in use)

9. Continue planting for at least 10 seconds (so that the seed monitor is reporting a stable population number). Verify that it is your desired rate.

10. Make necessary adjustments 48

PDC

Note: Use Depth Control mode. If tractor 3-point hitch

control is set for Load Control, hitch movement may cause changes in row unit depth resulting in uneven depth control.

Figure 54

CFM: Planting Conﬁguration

Skip and Double Checks

A. Dig up seed (or plant shallow with press wheel tied

up). Check seed spacing against charts.

B. With meters still charged with air, carefully inspect

disks at several rows.

Inspect the arc from just after the top tuft brush to the bottom edge of the seed drop brush. Look for cells (seed pockets) having no seed, or more than one seed. You may need a ﬂashlight to perform this inspection.

28491

Sharp Field Turns Checklist Page

1. Fold marker 44

2. Raise planter 24

3. Make turn

4. Lower planter 24

5. Unfold marker on next-row side. 44

6. Resume planting.

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Suspending Planting Checklist Page

1. Stop tractor

2. Fan hydraulic circuit to Float or Neutral 42

3. Fold Marker 44

4. Raise planter 24

Ending Planting Checklist Page

1. Suspend operations as above, then

2. Fold planter 25

3. Install transport locks 26

4. Lights ON -

5. Transport 28

46 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Parking

For information on long-term storage, see “Storage” on page 47.

1. If equipped with fertilizer, ﬂush system and secure pump against corrosion.

2. Fold planter. see “Folding the Planter” on page 25.

Note: Be sure to install cylinder lockup channels. Failure

to do so may result in injury and/or damage to the planter.

3. Park planter on a level, solid area.

4. To prevent rolling, block tires securely.

Roll-Away Hazard:

DO NOT unhitch planter while on a steep slope. Always block tires when unhitching from tractor. There is not enough weight on parking stand(s) to anchor planter on a slope.

Refer to Figure 55

3 Point Hitch

5. Remove pin holding main parking stand in “UP” position. Swing stand down. Pin stand in parking position. If the ground is soft, place a board or plate under the stand.

6. Remove wire snap lock pin from innermost hole on park stand mount, or remove both pins if stand was inverted. Swing support stand from underneath crossbar weldment, or invert to foot down.

7. Secure 3-point prop stands by using two pins on each stand.

8. Lower tractor 3-point until planter is resting on parking stand.

1 2

Hydraulic Tongue Hitch

9. Remove pin holding main parking stand in “UP” position. Swing stand down. Pin stand in parking position. If the ground is soft, place a board or plate under the stand.

10. Use tongue cylinder to lift planter high enough to fully swing down parking stand. Insert locking pin in parking stand.

11. Use tongue cylinder to lower planter onto parking stand. Pin parking stand.

12. Use tongue cylinder to lift tongue off tractor draw bar.

1 2

Figure 55

Jack and 3-Point Prop Stand

Either Hitch

13. Set all implement hydraulic circuits to Float to relieve pressure in lines.

14. Shut down hydraulics. Unplug hydraulic lines from tractor. Do not allow hose ends to rest on the ground.

15. Unplug planter light cable from tractor.

16. Unplug monitor harness from console.

17. 3-point: Unhook tractor from planter hitch.

18. Pull tractor away.

22814 27282

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Storage

Store the planter where children do not play. If possible, store the planter inside for longer life.

1. Empty hopper (page 90).

2. Close the seed box or hopper door (page 91). Clean out the air system (page 91).

3. Remove hopper or seed box (page 34).

4. Cover and seal off the opening at the top of the air box. Leave clean-out door slightly ajar to allow any condensed moisture to drain off.

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

6. Close seed inlet shutters at meters (to prevent pest entry to seed hoses). Thoroughly clean seed and seed treatment residue from seed meters. See “Meter Clean-Out” on page 92, for more information.

7. If your planter is equipped with an optional fertilizer tank, clean tank and application hoses. Be sure to follow chemical manufacturer’s instructions when handling chemicals.

8. Thoroughly clean pump following instructions in the pump manual.

9. Unscrew caps on end of fertilizer booms and ﬂush them out. Drain completely and replace caps.

10. Remove any dirt and debris that can hold moisture and cause corrosion.

11. Lubricate and adjust all roller chains.

12. Smear grease on exposed cylinder rods to prevent rust. Add a brightly-colored tag at the hitch as a reminder to de-grease the rods prior to next use (to avoid any risk that congealed grease might damage seals).

13. See “Lubrication” on page 104, for lubrication information.

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

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

16. Cover planter with a tarp if stored outside.

Note: Removing the seed box/hopper increases the life

of the air box seals, which are otherwise apt to be permanently compressed if stored under load off-season.

Note: Do not store optional bulk hopper outside on the

ground. Raise it on blocks, securing it in place to prevent from falling over or blowing around by wind. Store inside if possible.

Possible Chemical Hazard:

Seed disks will have talc and graphite residue, and may have residues of hazardous seed treatments. Do not wash disks where food is prepared, or where cookware or dinnerware is washed. Wear gloves when washing disks. Avoid spray. Although the disks are dishwasher-safe, do not wash them in an appliance also used for food cookware or dinnerware.

Storage: Fertilizer Option

The pump, strainer and manifold system require special attention prior to storage. See “Fertilizer System Maintenance” on page 102.

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Adjustments

To get full performance from your Planter, you need an understanding of all component operations, and many provide adjustments for optimal ﬁeld results. Some of these are covered earlier in this manual.

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

Adjustment Page The Adjustment Affects

Tongue Height 17 Correct draft load to tractor Frame Leveling 147 Planting consistency Wing Alignment 148 Correct and consistent row tracking Clutch Lock-Up 38 Temporary operation with a failed clutch Air System 40

Fan Speed 43 Optimal seed distribution Meter Pressurization (values from SRMa)

Planting Rate

Ground Drive Sprockets 49 Meter rpm (seed delivery to seed tube) Ground Drive Contact Wheel 50 Consistent meter rpm Hydraulic Drive - Refer to Planter Seed Rate manual

Marker Adjustments

Marker Extension 150 Swath alignment Disk Angle and Orientation 56 Visibility of mark

Marker Speed Adjustment 56 Reliable marker operation Height Switch Adjustment 57 Correct off/on state of meter drive Fertilizer Adjustments (Option)

Fertilizer Rate 55 Refer to Planter Seed Rate manual

Fertilizer Relief Valve SRMaRefer to Planter Seed Rate manual

Fertilizer Oriﬁce Selection SRMaRefer to Planter Seed Rate manual Frame-Mounted Row Accessories (Options)

Terra-Tine Row Cleaners 58 Row preparation

Coulters 59 Row pre-furrow depth and trash cutting

Vantage I Fertilizer Delivery 59 Fertilizer placement 25 Series Row Unit Adjustments

Row Unit Down Pressure 61 Planting depth uniformity

Row Unit Lock-Up 71 Single/twin-row operation

Row Cleaner Adjustments (Option) 63 Row preparation

Coulter Adjustments (Option) 64 Row pre-furrow depth

Row-Unit Opener Adjustments 65 Seed depth, spacing, coverage

Side Depth Wheels 66 Seed depth

Adjusting Gauge Wheel Scrapers 67 Consistent seed furrow depth

Seed Meter Setup and Adjustment 68 Consistent seed population

Seed Firmer Adjustments (Option) 74 Seed-soil contact

Press Wheel Adjustment 76 Effective soil coverage Monitor Adjustments - Refer to Seed Monitor manual

a. SRM: Seed Rate Manual (401-625B)

51 Consistent seed ﬂow and disk singulation

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 49

Setting Material Rates

Planting Rate

Adjusting the planting rate requires the following:

1. setting seed rate:

For ground-drive planters: adjusting drive speed Range sprockets, and adjusting Transmission sprockets,

For hydraulic drive planters, setting monitor and drive control channel,

2. preparing seed meters, including disks, shutters and meter pressurization,

3. checking tire pressure.

4. checking planting rate.

Population Target Risk:

Tire pressure matters for both ground and hydraulic drive. Incorrect tire pressure causes incorrect ground speed readout. On ground drive, incorrect pressure causes incorrect or inconsistent seed metering.

TRANSMISSION

RANGE

DRIVEN

Ground Drive Planting Rate

Wing Rate Mismatch Risk: There are separate left and right contact drives. Each drives one wing. Sprockets must be set identically on both side, per decals on each drive.

Refer to Figure 56 and Figure 57

Note: Contact wheels turn in opposite direction from

main ground tires.

Drive Speed Range Sprockets

Select Range sprocket pairing for your seed and rate from the Seed Rate manual.

Loosen Range idler and remove chain . Remove retaining pins from shafts and install speed Range sprockets called for in chart. Additional sprockets are on storage towers behind the reversing drive plate.

Population Target and Wing Rate Risk:

Make sure the correct sprockets have been installed in the DRIVING and DRIVEN locations.

Reroute chain over sprockets and idlers as shown.

Transmission Sprockets

Select Transmission sprocket pairing for your seed and rate from the charts in the Seed Rate manual.

Loosen idler and remove drive chain . Remove lynch pins from shafts. Install sprockets per chart.

Reroute drive chain over sprockets and idlers as shown.

Move idlers into chains for1⁄4inch (6 mm) slack in the longest spans. Tighten idlers and re-install lynch pins. Store and pin removed sprockets on storage towers.

4 5

2 3

DRIVEN

RANGE

DRIVING

Figure 56

Left Contact Drive

DRIVEN

Figure 57

Right Contact Drive

DRIVING

29745

TRANSMISSION

DRIVING

DRIVEN

29746

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Contact Wheel Drive

Refer to Figure 58

You can adjust the down pressure the contact wheel exerts by adjusting the pressure on the spring.

Note: Dual contact drive has dual springs to set.

Note: Do not adjust spring so tight that it will bottom out

when raised.

Refer to Figure 59

Before adjusting spring, raise planter and adjust wheel travel to obtain 11⁄2inch (3.8 cm) clearance above the main tire.

Refer to Figure 60

You can adjust the amount of travel for the contact wheel by loosing the jam nuts and lengthening or shortening the threaded rod.

Note: This adjustment controls the timing of the seed

meter drive when raising and lowering the planter. Increasing the gap between the tires causes seed ﬂow to start and stop with the planter at a lower height. Decreasing the gap will cause seed ﬂow to start and stop at a higher position.

Note: Be sure to check for spring bottoming after making

this adjustment.

Figure 58

Down Pressure Spring

Figure 59

Contact Drive Wheel

Figure 60

Travel Adjustment

21973

11⁄2inch

22500

21972

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Fan and Meter Pressurization Adjustment

1. These steps presume that correct seed disks are installed (Seed Rate Charts), and the seed inlet shutters are set for the seed (page 68).

2. With fan off, check meter pressurization reported by seed monitor. Re-zero as needed (see Seed Monitor manual).

3. Determine recommended fan rpm based on your own notes in the Seed Rate Charts, or the table on page 43.

4. Determine the recommended meter pressurization based on your own notes or the published value in the Seed Rate Charts.

5. Start the fan. Gradually increase fan rpm using the tractor’s hydraulic ﬂow control for the circuit. Adjust to the developed or suggested value from step 3.

6. Check that at least a small amount of pressure is being sensed at the meters and meter pressurization is near suggested value.

7. Perform a “FILL METER” operation for at least one minute (see DICKEY-john®Planter/Drill Control user level 1 manual).

8. Check for meter ﬁll: With fan running, put the tractor in Park and set the brakes. Walk behind the wings, remove several rain covers, and check for seed in meters by looking through the clear disks. Rows to check are those with longer hoses or sharper hose bends.

9. Fill the disk pockets with seed:

Hydraulic Drive: Run a “FILL DISK” operation.

Ground Drive: See options at right.

10. Check control air system pressure. With meters and disks ﬁlled, meter pressurization should be at target value.

11. Begin planting. Troubleshoot any obvious problems or alarms.

The meter pressurization system cannot reach full operating pressure when the hoses, meters and disks are completely empty. Low initial pressures are normal.

If a meter runs completely out of seed (“starved”), back-pressure to the air box manifold may prevent prompt reﬁll. To ﬁll a starved meter, close the seed inlet shutter for about 15 seconds, then restore it to the original setting.

Fill Disk with Ground Drive:

• With CFM clutch switches off, use a7⁄8inch (23 mm) wrench to rotate the wing meter system drive shaft 11⁄2turns (top forward).

• Lower the planter and plant for a short distance. It takes a few feet before seed begins to drop from meters.

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12. During the ﬁrst pass, take note of the average populations reported on the seed monitor.

Typical Location: Item:

Screen 1, ﬁrst row

Average Overall Population

above graphs

If the reported population varies from your intentions by a signiﬁcant amount, it is imperative to perform a furrow check. For serious rate variances, for which the source of the problem and the solution are not quickly determined, see “Population Troubleshooting Charts” on page 79.

If population is only slightly low, the problem can be skips (periodic empty disk pockets). If slightly high, the problem can be doubles (periodic pockets with double seed). A meter pressurization adjustment may correct either condition (see step 14).

13. Resume planting. During the next pass, note the following two readouts on the seed monitor:

Typical Location: Item:

Screen 1, 2nd row

Minimum Row Population

above graphs

Screen 1, 3rd row

Maximum Row Population

above graphs

Small seeds, such as Milo, may be under-reported. Use the “Alternate Skip/Double Check” below to verify seed status at the disc pockets.

Furrow Check:

Expose several seeds in each of several rows, being careful not to disturb their relative positions. Measure and average the distance between seeds. Compare this to the predicted seed spacing for the population in the Seed Rate manual.

Any instances of no seed where expected may be a sign of “skips”. Finding two seeds at the same spot is clear indication of “doubles”

A small varying population deviation between rows is normal; however, if a row is consistently running lower or higher than the other rows, it could indicate a meter or seed sensor problem that needs attention. “Population Troubleshooting Charts” on page 79.

14. Skips: If all else is correct, and the overall average population is running low (or there are gaps upon furrow check), the cause may be seeds falling out of disk pockets before delivery to the seed tube. Increase meter pressurization to correct this. You can adjust this with the planter in motion.

Press the “SPLITAIR +” softkey on the seed monitor console. Wait 5 to 10 seconds for the system to update, while you continue planting. Continue making small increase adjustments until the reported population levels out at the target value.

15. Doubles: If all else is correct, and the overall average population is running high (or there are double seeds upon furrow check), the cause may be two seeds in some disk pockets at delivery to the seed tube. Decrease meter pressurization to correct this. You can adjust this with the planter in motion.

Press the “SPLIT AIR -” softkey on the seed monitor console. Wait 5 to 10 seconds for the system to update, while you continue planting. Continue making small decrease adjustments until the reported population levels out at the target value.

Insufﬁcient meter pressurization, or unusually rough ﬁelds, can increase the incidence of empty pockets. Be sure to rule out other causes (such as skipping chains, meter starvation, incorrect meter disks) before adjusting meter pressurization to reduce apparent skips.

The suggested increment of change is two presses of the “SPLIT AIR” softkey, at the factory default value for change increments.

Excess meter pressurization can increase the incidence of doubles. Be sure to rule out other causes (such as incorrect meter disks) before adjusting meter pressurization to reduce doubles.

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Fine-Tuning Meter Pressurization

After several passes, if you are comfortable with the planter’s operation, you can optimize meter pressurization. Do this during longer passes, so there are fewer distractions (and see sidebar regarding Milo).

16. Observe the current overall average population reported by the monitor.

17. Adjust the meter pressurization down, in discrete steps, waiting 5-10 seconds between adjustments, until skips occur (population begins falling below target). Note the pressure at which skips begin.

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

19. Adjust the meter pressurization up, by periodic small increments, until doubles occur (actual population begins rising above target). Note the pressure at which doubles begin.

Note: If unable to adjust up to doubles (or skips happen

instead), seed delivery is probably being starved of air. Increase fan rpm and repeat limit search.

20. Adjust meter pressurization to a value halfway between the limits established at step 17 and step 19. This is the ideal value for your crop, disk and population, providing equal margin against skips and doubles. Record this value for future use.

Alternate Skip/Double Check

Small seeds, particularly Milo, are less reliably sensed as skips or doubles by the seed tube sensors, and watching monitor population is unlikely to locate the pressure limits. This test can also be quicker for all seeds.

A. After planting a few passes with initial settings,

remove the rain covers from several rows (use rows with a variety of seed hose lengths and routes).

B. Make a meter pressurization adjustment. Resume

planting for a pass or less.

C. Stop planter motion but leave fan running.

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

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

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

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

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Checking Planting Rate

Cautious practice includes checking seed delivery rate prior to planting.

Although the seed monitor can count most singulated seeds, it may not reliably count the smallest (such as Milo), it does not count individual volumetric seeds, and several factors can cause even large seed singulated reports to be inaccurate (such as incorrect speed calibration, Sensor Constant or Gear Ratio setup).

Methods of rate checking are described in detail in the Seed Rate Manual. The information on this page is an overview of the general process, which varies with the seed type and the planter meter drive type.

Before checking rate, make sure that the seed monitor is conﬁgured with an accurate Ground Speed Constant. As delivered, the monitor may have an inappropriate value pre-loaded.

The DICKEY-john® Quick Start Guide for your planter includes an initial value for this constant, but this value may not be optimal for your planter, and does not include any adjustment for tire wear over time.

For reliable monitor reports, at the start of each season, perform a “GROUND SPEED CALIBRATION” over a 400 foot/100 m course, as described in the DICKEY-john®IntelliAg®Planter/Drill Control Operator’s Manual. When completed and entered in the monitor, cross-check the reported implement speed against the tractor speedometer or other reference.

Checking Singulated Rate

A furrow check is the most accurate way to verify that you are seeding at your desired population value. This is done by planting for a short distance with one or two rows set to shallow depth and with press wheels tied up for no furrow closure. Seeds are counted in the furrow over a speciﬁc distance and the area rate is computed. Refer to the Seed Rate Manual for details.

The seed monitor will also be counting during the test, and comparing results provides conﬁdence in the seed monitor display.

Note: If the checked rate varies materially from the chart

rate, or for hydraulic drive, from the programmed rate, it is likely that there is a seed ﬂow problem or planter malfunction (such as contact drive tire slippage) or a conﬁguration error that requires correction. Do not “calibrate” to correct unexpected variations in singulated rates.

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Setting Fertilizer Rate

This page is an overview. For details on fertilizer rate setting, refer to the Seed Rate Manual, 401-625B.

Possible Chemical Hazard:

Wear proper protective equipment as required by chemical manufacturer. Avoid breathing of chemical fumes. Wear respirator as required by chemical manufacturer. Seek medical assistance immediately if accident occurs. Some chemicals cause serious burns, lung damage, and death. Avoid contact with skin or eyes. Know what to do in case of an accident.

Fertilizer rate is controlled by pump rate (for the Great Plains ground drive pump). Consistent delivery across the planter is controlled by oriﬁce size at row unit drop-line points.

Consistent system operation also requires a correctly adjust relief valve and a well-maintained strainer ahead of the pump. See “Important Safety Information” on page 1 and “Important Safety Information” on page 1.

Piston Pump

The liquid fertilizer option uses a piston pump. For pump operation and pump maintenance refer to the pump manual, supplied in the liquid fertilizer option package.

The pump is driven by a ground contact wheel , and fertilizer rate is independent of seed rate. Coarse fertilizer rate is set by a sprocket on the ground drive assembly. Fine rate is set by a dial on the pump. For settings, see the Seed Rate manual.

Note: Great Plains recommends checking with your local

Agronomist, as soil conditions vary. Conditions in your area may need lesser or more amounts of fertilizer than represented in these charts. Do not exceed 12 gallons per acre (112 liters/ha) in any case.

Note: Always disable the pump drive when not in use.

Use ground contact wheel lock up if installed. On older models remove the chain. Do not operate planter pump when not applying material.

Figure 61

Ground Drive Pump

28494

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Marker Adjustments

See also: “Marker Setup” on page 150 and, “Marker Maintenance” on page 98.

Pinch, Crush and Sharp Object Hazards:

Never allow anyone near the planter when folding or unfolding the markers. You may be injured if caught or struck by a folding or unfolding marker. Markers may fall quickly and unexpectedly if the hydraulics fail.

Dual Marker Speed Adjustment

Refer to Figure 62

Adjust folding speed for dual markers with hex adjustment screws on sequence valve body. There is an adjustment screw for raising speed and one for lowering speed . You can identify adjustment screws by markings stamped in the valve body.

Turn adjustment screws clockwise to decrease folding speed and counterclockwise to increase folding speed. With tractor idling at normal operating speed, adjust marker folding to a safe speed. Excessive folding speed could damage markers and void the warranty.

After adjusting folding speed, tighten jam nuts on hex adjustment screws to hold settings.

Figure 62

Marker Extension Adjustment

14048

Marker Disk Adjustment

Sharp Object Hazard:

Use caution when making adjustments in this area. Marker disks may be sharp.

Refer to Figure 63

To change angle of cut, and the width of the mark, loosen

⁄2-inch bolts holding disk assembly.

For a wider mark (W), increase the angle of the marker with respect to the tube . For a narrower mark (N), reduce the angle.

You can also invert the disk blade on the hub to change the direction of throw.

Tighten bolts .

Note: The direction of travel (T) tends to drive the disk

angle to Wide. If bolts are not tight enough, or loosen over time, the disk will slip into the Wide mark conﬁguration.

Figure 63

Marker Disk Angle

11757

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Height Switch

The height switch informs the seed monitor about the lowered/raised status of the planter. On all planters, the monitor only counts seed when the activate the Drive when the planter is lowered. On hydraulic drive planters, the switch also enables or disablesa hydraulic drive.

Refer to Figure 64

1. Loosen the bolts holding the height switch bracket and rotate the switch and bracket away from the frame pivot .

2. Lower the planter to the height at which seed delivery should begin.

3. Rotate the switch towards the frame pivot until the spring actuator just touches the frame.

4. Rotate the switch in until it clicks. Tighten the bolts to secure it in place. Be sure frame tube will not crush switch when unit is fully loaded.

Note: It may be necessary to loosen the screws holding

the switch and rotate the switch slightly on the bracket.

Figure 64

Height Switch

23398

a. When a hydraulic drive planter is raised, the switch state is ignored during “FILL DISK” and “5 REV TEST” operations.

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Row Implement Adjustments

To get full performance from your planter, you need a good understanding of row cleaner, coulter, fertilizer, opener, meter, seed ﬁrmer, and press wheel operation.

Frame-Mounted Row Accessories

Terra-Tine™ Adjustment

Refer to Figure 65

Note: All adjustments must be made with the unit in the

fully raised position.

Excess Wear Risk:

Check that the Terra-Tine Row Cleaner tines DO NOT touch the coulter blade or any other attachments. At least1⁄2inch (13 mm) clearance is recommended. Tine contacts cause excess wear to all parts involved.

1. When the blade is out of the soil, adjust the lock collar height to set the height of tine ﬁngers ﬂush with the bottom of coulter blade.

2. Side-to-side alignment can be done by rotating the shank mount around the vertical shaft and retightening the square head set screw.

L.H.

Figure 65

Terra-Tine in Front of Hub

R.H.

13469

Refer to Figure 66

3. Fore-to-aft adjustment is accomplished by adding or removing the extension arm to place the Terra-Tine Row Cleaner to either side of the coulter hub depending on the desired position or clearance between other attachments. Testing has shown better performance behind the hub, but available space may dictate the mounting position.

L.H.

Figure 66

Terra-Tine Behind Hub

R.H.

13469

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Frame-Mounted Coulters

Refer to Figure 67

At the shaft , adjust the coulter depth for a running depth of 4 to 41⁄2inches (10.2 to 11.4 cm) below ground level if off row, if on row as a no-till coulter operate at planting depth only . Refer to the Vantage I manual (204-376M) for further adjustments.

Do not adjust the spring tension. It is factory pre-set.

Vantage I Applicator

Refer to Figure 68

At the back plate , adjust the tine height for a running

6 3

depth of 1 inch (2.5 cm) below ground level . Refer to the Vantage I manual (204-376M) for further adjustments.

Figure 67

Frame-Mount Coulter

Figure 68

Vantage I Applicator

25392

22951

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25 Series Row-Unit Adjustments

Refer to Figure 69, which depicts a 25 Series row unit populated with most options supported on YP1225A & YP1625A (excepting scrapers and Seed-Lok®)

1. Lock-Up Pin Storage Hole (hole Standard) See “Row Unit Shut-Off” on page 71.

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 61.

3. Meter Pressurization Air Inlet (Standard) Pressure-regulated air enters the meter here and holds seed in the disk pockets. See “Fan and Meter Pressurization Adjustment” on page 51.

4. Seed Delivery Hose Inlet (Standard) Air carrying the bulk seed is vented at the bottom of the air release cone. Gravity then carries the seed into the meter at the shutter . The hose is easily removed for inspection. There are no adjustments.

5. Air-Pro See “Air-Pro® Meter Disk Installation” on page 70.

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 68.

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 Adjustments” on page 66.

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 Adjustments” on page 76.

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 71.

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 63.

Seed Meter (Standard, Choice of Disks)

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 “Unit-Mounted Coulter Adjustments” on page 64.

12. Opener Discs (Standard) Row-unit double disc openers create the seedbed furrow. They have adjustments for angle and spacing. See “Row-Unit Opener Disc Adjustments” on page 65.

13. Scrapers (Optional, not shown) Inside scrapers require no adjustment. For gauge wheel scrapers, see “Adjusting Gauge Wheel Scrapers” on page 67.

14. 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 74.

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

25 Series Air-Pro® Row Unit

Figure 69

29600

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Row-Unit Down Pressure

Row-unit springs provide the down pressure necessary for row-unit discs to open a seed trench. 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.

You can adjust down pressure individually for each row-unit. This is useful for penetrating hard soil and planting in tire tracks. For best results always adjust tractor tires so they are not ahead of 30 inch or 70 cm rows.

Use only enough down pressure to cut the seed trench and maintain proper soil ﬁrming over seed. Excessive row-unit down force will lead to premature wear on row-unit components. Excessive down force will also cause uneven seed depth.

Refer to Figure 70 through Figure 72

To adjust down pressure, use 11⁄8inch (29 mm) open end wrench or tool stored under the walkboard. Position wrench on nut and pull back and down. Move adjustment cam to new setting. If using cast tool stored under the walkboard, be sure row unit is off the ground to fully relax springs.

Minimum and maximum settings are indicated by position of adjustment cam. Each notch on adjustment cam will increase the down pressure on the row-unit springs. Use the table below as a setting reference.

Note: Do not set all rows any higher than notch 4. Using

settings above this on all rows will create uneven depth control and improper function.

Figure 70

Row Unit Cam Operation

Figure 71

Cam Minimum Setting (1)

29605

27065

Spring Down Pressure

Cam Notch Pounds Kilograms

zero (out of notch) Lock-Up & Maintenance

one 320 145

two 355 160

three 385 175

four 435 200

five 485 220

six 535 245

tip Do Not Use

Individual rows may be set higher if running in heavy tire tracks.

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Cam Maximum Setting (6)

Figure 72

27065

62 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Refer to Figure 73

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.

Note: Be sure to inspect rows both in and out of tire

tracks.

Refer to Figure 74

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.

Figure 73: 25 Series:

Checking Furrow

Light or no side gauge wheel tracks

Gauge wheels compress loose soil only

Inspect Furrow Here

Insufﬁcient down-force Increase down-force

Ideal No adjustment required

{

29600

Side gauge wheels making deep tracks

Figure 74: 25 Series:

Assessing Down-force

Down-force too high Reduce down-force

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 63

Unit-Mount Cleaner Adjustments

Refer to Figure 75 and Figure 76

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 disc 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

5 2

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 about3⁄4inch (19 mm).

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.

1 3

6 4

Sharp Objects Hazard:

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

UMC-RC: Row Cleaner Adjust

Figure 75

UMRC: Cleaner Adjust

Figure 76

27308

27343

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Unit-Mounted Coulter Adjustments

The ideal operating depth for coulters is1⁄4inch (6 mm) 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 77 and Figure 78

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 adjustment. Be careful around the front end of row units. Row clear tines and coulter blades may be sharp.

To adjust coulter depth:

1. Dismount row cleaner (if present) to reduce risk of injury.

2. Determine the present opener and coulter depths.

3. Note which bracket hole the coulter is presently using.

4. Determine which new hole will position the coulter closer to the1⁄4inch-above depth. See the table below. If none, don’t move it.

5. Remove the5⁄8-11×4in bolt, lock washer and

nut ( in Figure 77).

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

Figure 77

25 Series Unit-Mounted Coulter

29124

Hole

Number

7. Re-adjust openers, if installed.

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

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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

Figure 78

Coulter Blade Mounting Holes

23288

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 65

Row-Unit Opener Disc Adjustments

25 Series openers have three adjustments:

1. planting/seed depth

2. opener disc to disc clearance

3. gauge wheel/opener disc clearance

Setting Planting Depth

Refer to Figure 79

The “T” handle sets planting depth by limiting the how high the side depth gauge wheels ride relative to the opener discs. The position of the seed tube itself is ﬁxed relative to the discs, 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 80

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 inches (3.8 cm) of each other. If touching, the gap between the blades should not be signiﬁcantly greater than the thickness of two sheets of paper.

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

Adjusting Disc Contact

Refer to Figure 80 and Figure 81

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 disc contact.

3 4

5 6

Figure 79

Opener Adjustments

Figure 80

Opener Disc Contact Region

Figure 81

Opener Disc Spacers

29600

26127

26128

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Side Gauge Wheel Adjustments

Refer to Figure 82

The side gauge wheels have two, interrelated adjustments:

• angle of side gauge wheel, and

• distance between side gauge wheels and discs.

Refer to Figure 83

Adjust side-gauge-wheel angle so wheels contact row-unit discs at the bottom of wheel at 2in planting depth and gaps open3⁄8to5⁄8inches (9.5 to 16 mm) at top. Check with row-units in soil so wheels are held up.

At the same time, keep side gauge wheels close to opener discs so openers do not plug with soil or trash. However, wheels should be out far enough so discs and wheels turn freely.

Refer to Figure 84

To adjust side gauge wheels:

1. Raise planter slightly removing weight from side gauge wheels.

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.

Note: Use this as the starting point for adjustment.

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

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

• If wheel does not contact disc at bottom to area where

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

• If wheel does not fall freely, loosen hex-head bolt

and slide wheel arm out just until wheel and arm move freely. Retighten hex-head bolt per grade:

⁄2inch Grade 5 bolt, 76 foot-pounds (105 N-m).

⁄2inch Grade 8 bolt, 110 foot-pounds (150 N-m).

6. Keep turning hex adjuster and moving wheel arm until the wheel is adjusted properly. When satisﬁed, tighten pivot bolt to 110 foot-pounds.

Note: Use “End of “Appendix A - Reference

Information”.” on page 140 for reference.

2 3

Side Gauge

Wheel

Incorrect

Disc/Gauge Wheel Alignment

Opener-Gauge Wheel Contact

Starting Point

Disk/Gauge Wheel Adjustment

Opener Discs

Correct

Figure 82

Contact Within this Area

Figure 83

Figure 84

Side Gauge

Wheel

22531

22524 22525

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 67

Adjusting Gauge Wheel Scrapers

Refer to Figure 85

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

6 7

touches tire.

3. Slide scraper away from wheel leaving a

⁄8inch (3 mm) gap at .

6 7

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

5 8

constant.

6. Tighten nut .

Figure 85

Gauge Wheel Scraper Adjustment

25273

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Meter Adjustments

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 86

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 87 (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.

1 2

Setting Setting Typically Used For

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

| (1) Small seeds, such as Milo, with little or

|| (2) Small treated seeds and edible beans

||| (3) Corn, round popcorn

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

Bottom (5) Wide Open: Clean-Out

Figure 86

Rain Cover Removal

Figure 87

Seed Inlet Shutter

(such as Soybeans)

29606

III

||||

29607

no treatments

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 69

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 88

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 89 and Figure 90

For medium size and larger, or heavily treated smaller seeds that ﬂow less easily, the slope runs from at or slightly above the 8:30 (o’clock) position on the housing wall, forward and down to 3-6 seeds deep at the base of the rear strip brush .

In general, the seeds at the base of the strip brush need to be deep enough that no air escapes there, and so that just enough seeds are present to begin populating cells.

Keep the top left/rear end of the pool below the 9:00 o’clock position (meter horizontal center-line).

Meter 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.

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

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

If inlet bridging is not the problem, little or no seed ﬂows into the meter with the shutter open wider. In this case, the problem is further upstream in the seed ﬂow, and may be bridging at the air release screen at the top of the meter. Close the shutter completely for about 15 seconds. This prevents meter pressurization air from opposing seed delivery air. The delivery air pressure usually collapses the bridge. Re-open the shutter and see if seed now ﬁlls the meter.

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

Milo: Seed Inlet Shutter at: 1

Soybeans: Seed Inlet Shutter at: 2

Corn: Seed Inlet Shutter at: 3

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.

8:00

Figure 88

8:30

Figure 89

8:30

Figure 90

29602

29604

29603

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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 68).

Refer to Figure 91 (depicting an empty meter)

4. Inspect meter (see page 94 for details).

5. Make sure clamp is aligned with seat .

Refer to Figure 92

6. With the seed pocket side facing the meter housing, place the new seed disk on the disk seat.

7. Rotate disk clamp clockwise 45deg to clamp disk. Clamp seats into detents in disk hub.

Note: 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.

Note: 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.

1 2

Figure 91

Disk Removed From Meter

Figure 92

Disk on Clamp and Seat

29608

29611

Brush Mis-Seating Risk:

Rotate disks forward shortly after disk installation. If planting is not anticipated within an hour or two of disk installation, rotate the drive system a few turns to ensure that meter brushes lean in the correct direction. Correct lean improves meter performance and reduces air consumption. This step is particularly important for new brushes.

Brush seating may be accomplished with or without seed present, and may be combined with “FILL DISK”. See step 9 on page 51.

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 68).

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Figure 93

Disk Clamped

29614

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 71

Removing a Seed Disk

Refer to Figure 94

1. Remove rain cover. If seed is present, close shutter to prevent more seed from entering meter. Attach funnel (page 92).

2. Hold seed disk in meter. Rotate disk clamp counterclockwise 45° to release disk.

3. Tilting top of disk toward meter, slowly remove disk, allowing seed to collect in funnel. Open shutter to release remaining seed up to wing tube.

4. Clean seed from all brushes. Clean disk seat ( in Figure 91 page 70), so that new disks can seat fully. Inspect brushes for excess wear and damage. See “Meter Brush Maintenance” on page 94.

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 96.

6. Re-install the rain cover (page 68).

Figure 94

Remove Disk

29611

Row Unit Shut-Off

Skip-row operations, such as planting from every other row when switching from 30 inch twin-row to 30 inch single-row, requires shutting down unused rows.

Shutting off seeding at a row involves 4 to 7 steps:

1. Identify the rows to shut off.

2. Fully close seed inlet shutter (always done).

3. Replace seed disk with blank disk (always done).

4. Close seed ﬂow to row at Y-tube (if present).

5. Lock up row unit to reduce wear (optional).

6. Reset marker extension (if used, page 150).

7. Reset monitor active row pattern and row spacing to avoid nuisance alarms (always done).

Note: Meter drive is not disabled on 25AP row units

during shut-off.

Figure 95

Seed Inlet Shutter Closed

29609

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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 front (short mount) rows.

On single-row planters with mid-length mounts, any rows may be locked up.

2. Close Seed Shutter

Refer to Figure 95 on page 71

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

Figure 96

Shutter Closed, Blank Disk Installed

29610

as soon as the seed backs up to the air release vent at the top of the meter. If the row is served by a Y-tube, the Y-tube also needs to be shut off for the row (step 4).

3. Install Blank Disk

Refer to Figure 96

Clean out meter. See “Meter Clean-Out” on page 92.

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.

Remove seed disk and install blank disk. See “Air-Pro® Meter Disk Installation” on page 70.

Blank disks (part number 817-841C) are essential in row shut-off, both to maintain consistent meter back-pressure to meter pressurization and to prevent wear on a seed disk.

Blank disks are engineered to simulate a seed disk with seed in all pockets. Blanks are particularly important on the rows with lines to the pressure chamber.

4. Close Y-Tubes

Refer to Figure 97

If any shut-off rows are served by a Y-tube, close the valve for the branch to that row. Rotate the valve cap until the indicator/handle is perpendicular to the tubes.

Closing the Y-tube prevents seed from entering an

Figure 97

Y-Tube Open and Closed

29758

unused hose, reducing waste and simplifying clean-out.

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 73

5. Lock-Up Row

Machine Damage Hazard:

Do not lock up the rear rows on a twin-row YP1225A or YP1625A planter. They will strike other machine components in folding, and be damaged.

Alternate twin-row units (the front units) can be pinned in the up position to accommodate single-row spacing.

Refer to Figure 98

The lock-up pins for each front row unit are located in a storage hole in the row unit mount. To lock up a unit,

the unit must be raised, and the pin moved to the lock-up

hole in the row unit shank.

Note: If you lose a pin, the replacement part number is

805-033C

1. Raise the planter. Although this adjustment can be made with the planter lowered, the springs will be in tension, and will require more effort. The extra force may also damage tools.

2. Install lift assist cylinder locks. Lower parking stands.

3. Set the down pressure spring cam to zero, per the instructions on page 61.

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

Figure 98

25AP Row Unit Lock-Up Pin

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.

25269 29600

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 99

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.

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

Figure 99

25AP Row Unit Locked Up

29756

occurs as soon as planting begins.

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Seed Firmer Adjustments

25 Series row units accept one of two optional ﬁrmers.

Sharp Objects Hazard:

Row unit disc blades may be sharp. Use caution when making adjustments. To adjust the Keeton® Firmer, lower the planter until the discs 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 furrow.

Refer to Figure 100

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.

Measure the distance from the ground to the head of the tension screw. This distance should be 4 to 41⁄2inches (10.2 to 11.4cm). If not, loosen the bolts in the mounting bracket and select different holes until the proper measurement is attained.

Figure 100

Keeton® Seed Firmer

20327

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 75

Seed-Lok® Seed Firmer Lock-Up

Optional Seed-Lok® ﬁrming wheels provide additional seed-to-soil contact. The wheels are spring loaded and

do not require adjusting. In some wet and sticky conditions the wheels may accumulate soil. To avoid problems associated with this, you can lock-up the ﬁrmers.

Refer to Figure 101 (which depicts a row unit with discs, side depth wheels/arms and press wheels removed for illustrative

purposes - removal is not necessary for lock/unlock)

To lock up Seed-Lok® wheels:

1. Raise planter. Insert lift assist cylinder locks.

2. Lift Seed-Lok®lock-up handle until lever stop is

1 2

free to rotate.

3. Rotate lever stop to side/idle position . Release lock-up handle .

4. Push up on Seed-Lok® wheel until wheel arm latches up .

To release a locked-up Seed-Lok®:

1. Insert a1⁄4in tool drive tip in the tool hole of the handle . Alternatively, lift up on the wheel .

1 4

2. Rotate the handle clockwise (handle arm up) until the Seed-Lok® wheel releases at the latch point and falls free.

3. While holding the handle up, rotate the raised portion of the lever stop under both sides of the handle

2 2

Figure 101

Seed-Lok® Lock-Up

Note: Engage the lever stop under the handle when

Seed-Lok®is in use. If left disengaged , a furrow obstruction could cause unintended lock-up.

31543

at the arm end. Remove the tool.

Seed-Lok® Seed Firmer Lock-Up (older style)

Optional Seed-Lok® ﬁrming wheels provide additional seed-to-soil contact. The wheels are spring loaded and

do not require adjusting. In some wet and sticky conditions the wheels may accumulate soil. To avoid problems associated with this, you can lock-up the ﬁrmers.

Refer to Figure 102

To lock up Seed-Lock wheels:

1. Raise planter. Insert lift assist cylinder locks.

2. Rotate Seed-Lok® lock-up handle 90 degrees

down on top of row unit body.

3. Push up on Seed-Lok® wheel until wheel arm latches up.

Figure 102

22909

Seed-Lok® Lock-Up

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Press Wheel Adjustments

Attached to the rear of each row-unit is one of several press wheel options.

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

Refer to Figure 103

Press wheels are attached to each row-unit body. The press wheels close the seed trench and gently press soil over seed.

An adjustable spring in the press wheel mechanism creates the down pressure needed to close the seed trench. The amount of force needed will vary with ﬁeld conditions.

To adjust, move adjustment handle.

• For less down pressure, move handle forward toward planter.

• For more down pressure, move handle back away from planter.

Note: Increased press wheel spring force may require

increased row-unit down force to maintain depth.

Note: The factory setting on the press wheel is staggered

to achieve optimum residue ﬂow.

Refer to Figure 104

To adjust press wheels from staggered to even, remove

⁄8inch bolt , and lock washer . Reinstall spacer ,

press wheel and hardware to the other hole location.

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 105

1. Determine how far, and in which direction, the press

wheel assembly needs to move to center the wheels.

2. Raise planter and install lift assist cylinder locks. See

“Important Safety Information” on page 1.

3. Loosen the1⁄2inch hex-head bolts and .

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.

1 3 4

8 9

Note: Do not loosen the two forward bolts.

Less Down

Pressure

Figure 103

Press Wheel Adjustment

Figure 104

Press Wheel Stagger

Figure 105

Press Wheel Centering

(View from beneath opener)

More Down

Pressure

21948

22907

25277

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Great Plains Manufacturing, Inc. Table of Contents Index 77

Troubleshooting

Planting Rate Problems

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

Also during start up it is common to encounter alarms and readouts on the DICKEY-john® console 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 DICKEY-john eliminate nuisance alarms.

Before entering the troubleshooting charts to remedy a monitor or population problem, it is helpful to use the following ﬂowchart to get a handle on what may be wrong. The basis for ﬁnding what is wrong comes from knowing exactly what the planter is actually doing in the soil. Always dig or observe seed on the ground when checking populations.

monitor.

monitor to

For seed monitor issues, see also the DICKEY-john Planter/Drill Control User Manuals, “TROUBLESHOOTING & ALARMS” section.

Suggested Furrow Check:

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

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

1. Is the spacing on the

ground correct?

2. Is the reported population

⁄2the actual or is the

reported population too high by a factor of 2?

3. Is the population on the

screen close to the target population?

No: 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.

Yes: Go to step 2.

No: Go to step 3.

Yes: An incorrect row spacing value entered in the seed monitor can cause

this. Example: 15 inches instead of 30 inches. Correct the row spacing error on the DICKEY-john® 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.

No: Check seed rate charts against transmission sprockets selected. See

“Population Too Low”or“Population Too High” in the troubleshooting charts.

Yes: If slightly under, see “Population Too Low” if slightly over, see

“Population Too High”.

2013-08-13 Table of Contents Index 401-625M

78 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Seed Pool Troubleshooting

29743

Figure 106

Rear Cross-Section of Air-Pro® Meter in Normal and Row-Failed Conditions

Normal:

Filling

Seed pool at shutter prevents back-ﬂow of meter pressurization air, allowing seed to ﬂow from delivery system, ﬁlling inlet to top of air release screen.

Once inlet is ﬁlled to top of air release screen, air ﬂow from the delivery system is blocked. No further seed arrives until planting reduces the backlog at the inlet.

Normal:

Filled

Delivery Blockage or

Back-ﬂow Starvation

No seed arriving from manifold. Air back-ﬂow is

occurring. Causes may include:

• low fan speed

• seed hose blockage

• no seed available

Bridging:

Screen

Oversize matter in seed has caused a bridge at the top of the inlet. Air back-ﬂow

is occurring.

When the bridge is released, the seed pool will be insufﬁcient to prevent back-ﬂow.

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

• oversize seed

• shutter setting too

• oversize matter in

• Y-tube closed

• meter never primed

Actions: Actions: Actions: Actions: Actions:

No action required.

Continue Planting.

No action required.

Continue Planting.

1. Correct cause of blockage.

2. Perform a one-row seed pool recovery (page 79).

3. Resume planting.

1. Close shutter.

2. Disconnect hose at meter.

3. Tap on screen cone and inspect.

4. Check seed pool for foreign matter.

1. If shutter was at

2. Check seed pool

3. Resume planting.

5. Perform a one-row seed pool recovery (page 79).

6. Resume planting.

29743

Bridging:

Shutter

low

seed

suggested opening, increase one notch.

for foreign matter.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 79

Seed Pool Recovery

When a meter has been starved of seed, back-ﬂow of air through the open shutter reduces delivery air ﬂow. This causes seed delivery to be slow. If you start or resume planting with an empty seed pool, the delivery ﬂow may be too low to keep the meter supplied. The steps below quickly “prime” the meter by rebuilding the seed pool.

Refer to Figure 107 (which depicts a recovery after an incidence of bridging at air release screen)

1. Close the shutter . This stops the air back-ﬂow.

2. Clear the bridge or blockage that caused the meter to run empty.

3. With the fan running, listen for seed to fall into the inlet.

4. Wait for seed fall to taper off and stop.

5. Open the shutter to the operating setting.

6. Start or resume planting.

29744

Figure 107

Seed Pool Recovery

29744

Population Troubleshooting Charts

Population Too Low

Problem Cause Solution

Overall Low Population

Incorrect seed rate Check seed rate charts

Ground Drive only: Incorrect Transmission sprockets or shafts used

Ground Drive only: Incorrect Range sprockets or shafts used

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.

Check Transmission sprocket tooth counts and Driver/Driven locations.

Check Range sprocket tooth counts and Driver/Driven locations.

Increase the controlled air to the meter. See “Fan and Meter Pressurization Adjustment” on page 51.

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.

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80 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Population Too Low

Problem Cause Solution

Overall Low Population (cont.)

Low Population, One Wing

Seeds are not falling from disk, and get carried past drop zone. Static electricity can cause small, lightweight seeds to cling to the pocket and not fall out.

Air pressure too low, false information driving the DICKEY-john

Low fan speed: meter starvation due to meter pressurization, leaving insufﬁcient air for seed delivery

Leaking meters in split row: meter starvation due to meter pressurization leaving insufﬁcient air for seed delivery

Inadequate contact wheel spring pressure Check for correct spring and gap setting, page 50.

Air pressure in contact wheel incorrect Check for correct tire air pressure, page 127.

Excess ﬁeld speed Plant within speed ranges recommended in seed rate

Improper gap on speed sensor. Check speed sensor on planter for1⁄16inch to1⁄8inch

Incorrect speed sensor constant Perform speed calibration per DICKEY-john® monitor

Ground Drive only: LH and RH Range setup not matched.

Ground Drive only: LH and RH Transmission setup not matched.

Clutch slipping, due to contaminants in clutch, or wear

Skipping chain from drive to wing Check chain slack.

software.

The graphite component of Ezee Glide Plus addresses this issue. Increase the amount of Easy Glide Plus and/or more thoroughly mix the lubricant into the seed.

Compare the air pressure reported on the monitor console to the mechanical gage. If they do not match:

• Inspect the1⁄4inch sample lines from the row units up to the sensor chamber for leaks.

• Make sure all non-planting rows have blank disks.

• Re-zero the air pressure with the fan off.

Increase fan speed.

Install blank disks and close shutters on unused rows.

charts.

(1.6 to 3.2 mm) gap from wheel. Improper gap can cause erratic speed signal causing monitor to falsely report improper planting rate.

manual.

Make sure LH and RH Range settings are identical, and that sprockets are on proper DRIVING/DRIVEN shafts.

Make sure LH and RH Transmission settings are identical, and that sprockets are on proper DRIVING/DRIVEN shafts.

Lock-up clutch (page 38) until it can be overhauled or replaced

Replace worn chain.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 81

Population Too Low

Problem Cause Solution

Low Population, Single Row

Shutter opening too wide - interfering with meter pressurization

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

Y-tube partially or completely closed, reducing bulk ﬂow to meter or causing bridging

Meter starvation due to bridging at shutter Re-adjust for shutter bridging (page 69).

Meter starvation due to bridging above inlet, caused by low seed delivery air ﬂow

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

Skips due to low meter pressurization at one or several rows

Skips due to skipping chain Check for worn chain, worn idlers, and low chain slack

Skips due to debris in disk pockets Remove rain covers. Inspect and clean out disks.

Row has blank disk installed Replace with seeding disk.

Seed sensor obscured Clean out seed tube (see page 93).

Adjust shutter to lower setting.

Adjust shutter to higher setting.

Open Y-tube for row

If seed is treated, increase seed lubricant.

Clear bridge (page 69). Check that seed delivery system is getting sufﬁcient fan air, and that there are no other obstructions upstream.

Clear bridge (page 69). Increase seed lubricant.

Check shutter setting. Check for excess wear on seed drop brush. Check for loose or leaking pressure hose.

(page 100).

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82 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Population Too High

Problem Cause Solution

Overall High Population

High Population, One Wing

Incorrect seed rate Check seed rate charts

Ground Drive only: Incorrect Transmission sprockets or shafts used

Ground Drive only: Incorrect Range sprockets or shafts used

Two seeds per pocket on the disk (doubles), due to excess meter pressurization

Two seeds per pocket on the disk (doubles), due to pockets too large for the seed

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

Air pressure too high, false information driving the DICKEY-john® software.

False alarms or actual seed rate errors due to monitor setup with incorrect row count, spacing or active rows

Incorrect cell count Replace seed disks with correct disks, or reset rate for

Improper gap on speed sensor. Check speed sensor on planter for1⁄16inch to1⁄8inch

Incorrect speed sensor constant Perform speed calibration per DICKEY-john® monitor

Doubles due to incorrect disk for crop or seed size

Sticky seeds: excess seed treatment Increase seed lubricant.

Ground Drive only: LH and RH Range setup not matched.

Ground Drive only: LH and RH Transmission setup not matched.

Check Transmission sprocket tooth counts and Driver/Driven locations.

Check Range sprocket tooth counts and Driver/Driven locations.

Methodically decrease the controlled air to the meter. See “Fan and Meter Pressurization Adjustment” on page 51.

Select a disk with smaller pockets.

Re-zero the air pressure with the fan off. Make sure the displayed pressure reads 0.00.

Compare the air pressure reported on the monitor console to the mechanical gage. If they do not match:

• Inspect the1⁄4inch sample lines from the row units up to the sensor chamber for leaks.

• Make sure all non-planting rows have blank disks.

• Re-zero the air pressure with the fan off.

When troubleshooting population issues, always ﬁrst rule out seed monitor setup. Review planter conﬁguration and monitor setup.

current disks (if within range).

(1.6 to 3.2 mm) gap from wheel. Improper gap can cause erratic speed signal causing monitor to falsely report improper planting rate.

manual.

Use recommended disk for crop and seed size.

Make sure LH and RH Range settings are identical, and that sprockets are on proper DRIVING/DRIVEN shafts.

Make sure LH and RH Transmission settings are identical, and that sprockets are on proper DRIVING/DRIVEN shafts.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 83

Population Too High

Problem Cause Solution

High Population, Single Row

Excess meter pressurization causing doubles

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

Incorrect seed disk with higher cell count.

Check shutter.

Replace worn brushes.

Install correct disk.

Population Related

Problem Cause Solution

Overall Population Alarms

Low Population Bands Just After Turns

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

Incorrect cell count Replace seed disks with correct disks, or reset rate for current

Improper gap on speed sensor. Check speed sensor on planter for1⁄16inch to1⁄8inch

Incorrect speed sensor constant Perform speed calibration per DICKEY-john® monitor

Insufﬁcient oil to fan - meter pressures low - seeds falling from disks.

When troubleshooting population issues, always ﬁrst rule out seed monitor setup. Review planter conﬁguration and monitor setup.

disks (if within range).

(1.6 to 3.2 mm) gap from wheel. Improper gap can cause erratic speed signal causing monitor to falsely report improper planting rate.

manual.

Perform end-of-pass marker and lift operations separately. If already performing separately, reduce marker speed, and/or list more gradually.

Mismatch Between Reported and

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

Furrow Population

Seed tube sensor is not counting all seeds

Seeds / revolution value in the DICKEY-john® setup does not match the disk cell count.

Unable to adjust air pressure low enough.

2013-08-13 Table of Contents Index 401-625M

Lower limit reached in DICKEY-john® software.

Fan speed too high, vane rotated to maximum.

Run with rain covers in place to minimize ambient light intrusion. Use the population adjustment factor in the DICKEY-john® monitor system to compensate for missed seeds. For example, change the DICKEY-john® Population Adjustment values from 100% to 130% or 140% as needed. Remember to set this back to 100% for large seeds.

Clean the seed tube of graphite and dust buildup with long narrow seed tube brush. Replace sensors that malfunction.

Correct the value in a setup screen or install the correct cell count disc.

At User Level 2, reduce the controlled air lower limit in the software.

Reduce the fan speed.

84 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Population Related

Problem Cause Solution

Seed too

Bottom of seed tube damaged. Replace seed tube. Avoid setting planter straight down. Use

shallow or scattered on ground from a

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

Opener depth too shallow. Change side depth wheel setting.

single row

Twin Rows were timed but became out of time.

System is unable to

Timing will change when a population change has been made.

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

Signal from air pressure sensor lost. (failed sensor or wiring)

automatically control air meter pressure.

Problem Cause Solution

Single row doesn’t ﬁll or keep up with other rows.

Both rows on one meter outlet low or not keeping up with other rows.

forward motion when lowering.

Re-time meters from the population based timing chart.

links.

Air pressure may be controlled manually, consult DICKEY-john® Planter/Drill Control manual, User Level 2/3.

Seed Delivery Troubleshooting

Y tube is bent/angled off feed pipe.

Drop tube to meter is too long, causing seed to pool and plug hose or Y-tube.

Blockage in air slot in top of airbox.

Loosen pipe and spin so the bend is straight down and Y-tube is not pointing to front or rear of air pipe.

Shorten hose (with planter raised, but row units lowered, to ensure hose is not too short).

Clear by using a long skinny tool and taking hose off through hose outlet.

It may be necessary to take top off airbox or use side access doors to clear junk from slot.

Bad hose routing between delivery hose and airbox on wing.

Multiple rows fail for lack of seed. Fan speed too high/too low. Check/adjust fan speed.

Out of seed. Add seed.

Single or multiple hoses plugging just ahead of airbox.

All rows fail. Lack of seed. Fan speed too high. Adjust fan speed.

401-625M Table of Contents Index 2013-08-13

Fan speed too high/too low. Check/adjust fan speed.

Possible air leak. Check for air leak downstream

Correct hose routing.

between box and top of meter.

Extremely high populations may require slightly reduced ﬁeld speed.

Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 85

Seed Delivery Troubleshooting

Problem Cause Solution

1, 2, 3, or more outlets fail.

Outlets can be side-by-side or random. Plugging may also move from one outlet to another.

Little or no seed to a lot of rows with heavily treated seed.

Foreign matter in seed chamber in bottom of airbox.

Seed treatment sticky. Add Ezee Glide Plus to seed to dry out

Treatment mixed unevenly and plugging outlets.

Clean out seed chamber.

seed treatment.

Clean out seed. Re-mix.

General Troubleshooting

Problem Cause Solution

Population Alarms

Excess Seed Remaining

Seed

Consumptio

n Too High

Rows Not

Planted

See “Population Troubleshooting Charts” on page 79.

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

Excessive gaps between planter passes.

See “Population Troubleshooting Charts” on page 79.

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

Excessive overlap. Irregular shaped ﬁeld.

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

Adjust marker, page 56.

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

Uneven seed spacing

Planter does not fold or

See “Population Troubleshooting Charts” on page 79.

Excessive ﬁeld speed. Reduce ﬁeld speed.

Unclean seed. Use clean seed.

Damaged seed tube Inspect; repair or replace.

Seed-Lok® plugging. Lock up Seed-Lok®, page 74.

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

Troubleshooting chart.

Plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out.

Worn/rusted sprockets and/or chain idler or bearings.

Lack of proper seed lubrication on seed.

Fold cylinders out of phase Re-phase cylinders, refer to page 27

Air in lines Bleed fold circuit, refer to page 97

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

See “Seed Lubricant” on page 111.

unfold fully

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86 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

General Troubleshooting

Problem Cause Solution

Uneven seed depth

Press wheel or row-units plugging

Row-unit discs not turning freely.

Press wheels not compacting the soil as desired.

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 74.

Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 60.

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.

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

Seed-Lok® is plugging row-unit. Lock up Seed-Lok®, page 74.

Failed disc bearings. Replace disc bearings.

Bent or twisted row-unit frame. Replace row-unit frame.

Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out.

Incorrect spring handle setting See “Press Wheel Adjustments” on page 76.

Insufﬁcient row unit down-force See “Row-Unit Down Pressure” on page 61.

Use of incorrectly shaped tire for your conditions.

Not level front to rear. Check tongue height.

See 25 series row-units, page 60.

See “Seed Firmer Adjustments” on page 74.

Check coulter adjustment.

Check tongue height page 17

Clean out and check for damage.

Adjust side depth wheels page.

See “Side Gauge Wheel Adjustments” on page 66.

Wedge shaped wheels work best on narrow spacings and in wet conditions. Round edge wheels work best in wider row spacings and drier conditions.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 87

General Troubleshooting

Problem Cause Solution

Seed blowing out of bulk box door area

Air lines plugging between air box and Y splitters

Air lines plugging between Y-tube and meter

Hydraulic marker functioning improperly, or not at all

Marker disk does not mark

Fan too fast. Slow down fan. If already at 3000 rpm, reset fan to 3800 rpm

and use fan butterﬂy valve to reduce airﬂow.

Seal from airbox to hopper damaged or not adjusted.

Fan too slow. Speed up fan.

Air leaks between air box manifold and splitters

Improper hose routing, sags or kinks With planter unfolded, hoses should for a gentle “S” shape

Sag or kink in air hose. Check air tube placement in tube mount weldment. If correct,

Meter is shut off but Y-tube is open. Shut off Y-tube.

Air tube assembly not positioned on correct tab.

Sag in air hose due to incorrect frame height

Marker/Fold switch set to Fold. CFM Switch must be set to “Marker”. Set tractor remote

Marker/Aux valve set to Aux On a planter with optional Auxiliary Hydraulics, selector valve

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 plugged. Open needle valve, cycle markers slowly and reset needle

Needle valve(s) in sequence valve plugged.

Marker folding linkage does not have enough slack to allow marker disk to drop into ﬁeld depressions.

Inspect and adjust seal. Seal should be intact, and compress to about

Check for leaks and correct as needed.

through the holders, with no deep sags.

shorten any hose that has stretched due to age.

Move assembly to properly position Y-tubes over row meters.

Raise or lower the tongue so center portion of frame is level with gauge wheel area.

circuit to Neutral or Float before operating switch.

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.

valve, refer to page 56.

Open needle valves, cycle markers slowly and reset needle valves, refer to page 56.

Maximum down ﬂoat should be limited by the slot at the rod end of the marker cylinder, refer to page 56.

Reverse marker disk to pull or throw dirt.

⁄2in (13mm) under seed container.

Auxiliary

Hydraulics

Inoperative

2013-08-13 Table of Contents Index 401-625M

Marker/Fold switch set to Fold CFM Switch must be set to “Marker” for Aux to function. Set

tractor remote circuit to Neutral or Float before switching.

Marker/Aux valve set to Marker Selector valve must be set to Aux. Set tractor remote circuit

to Neutral or Float before changing valve.

88 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

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.

OFF

Crushing Hazard:

Always have transport locks in place and frame sufﬁciently blocked up when working on implement. You may be severely injured or killed by being crushed under the falling implement.

High Pressure Fluid Hazard:

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 disc 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 104.

7. Replace any worn, damaged, or illegible safety labels by obtaining new labels from your Great Plains dealer.

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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 89

Tongue Lift Cylinder Locks

Center lock channels are provided for use during service procedures with the planter partially or completely unfolded.

They are not necessary for normal transport operation. When the planter is fully folded, the center section is supported at lift by the wing locks on the tongue.

Install Center Lift Locks

Refer to Figure 108

1. Remove lock channels from storage locations.

2. Raise the unfolded planter.

3. Install lock channels on exposed cylinder rods.

Remove Center Lift Locks

Refer to Figure 109

1. Raise the unfolded planter, to allow removal of the lock channels.

2. Move the lock channels to their storage locations.

Figure 108

Lift Cylinder Lock Storage

29736

Figure 109

Frame Lift Locks Installed

29738

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90 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.

Material Clean-Out

When planting is completed, it is commonly the case that some seed remains. There may be seed in the hopper or bulk box, seed in the airbox, a small amount of seed in the hose lines, and seed in the meters. Some meters may be ﬁlled up to the air release vent (which prevents additional seed from reaching that meter).

A complete system clean-out is a 3 step process.

1. Empty airbox (and hopper, if desired).

2. Blow residual seed to meters.

3. Clean out meters with fan running.

Possible Dust and Chemical Fume Hazard:

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

Entrapment and Rapid Suffocation Hazard:

Never enter a hopper for any reason. Keep strainer in place at all times.

▲ A hopper that is full or merely appears full can be an

entrapment hazard. You can sink entirely into the grain, o into an oxygen-deﬁcient void, and suffocate in a matter o seconds. Grain bridges and crusts are especially dangerous.

▲ When hazardous fumes are present, you can be quickly

overcome even with the hopper lid open.

▲ Do not enter a hopper for material loading, materia

unloading, hopper cleaning or meter maintenance.

▲ Clean hopper by power washing from outside hopper top.

Hopper Clean-Out

Perform hopper clean-out with the fan off.

Refer to Figure 110

1. Close the slide gate at the base of the hopper.

2. Place a tarp under the seed cart.

Refer to Figure 111

3. Open the clean-out door on the bottom of the airbox. Seed in the airbox immediately falls onto the tarp.

Note: If needed, additional access doors are provided.

4. Open the slide gate slowly. The remaining seed in the hopper falls onto the tarp. Use the slide gate to regulate the ﬂow and, as needed, stop it while recovering seed from the tarp.

5. Rapidly open and close the slide gate to dislodge seed in the tracks. Tap on the sides of the hopper to dislodge residual seed.

6. Close slide gate. Close clean-out door.

7. Perform an air system clean-out to remove ﬁnal amounts of residual seed from airbox, and all seed in meters.

Figure 110

Hopper Slide Gate Open

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Airbox Clean-Out Door Open

Figure 111

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Air System Clean-Out

Refer to Figure 112

1. Shut off slide gate door at bottom of seed box or bulk hopper.

2. Place a pan or tarp under the airbox manifold to catch seed.

Refer to Figure 113

3. If the planter has Y-tubes, shut off the gates at all of the Y-tubes.

Refer to Figure 114

4. Open airbox clean-out door to empty seed from the manifold.

Note: If needed, additional access doors are provided.

5. Shut the clean-out door under manifold.

6. Turn on the air fan and let it run. Use the “SPLIT AIR -” softkeya to reduce the regulated air pressure to a low value, 1 inch H2O or less - this diverts most of the air to the bulk seed delivery system.

Figure 112

Slide Gate Closed

29495

If most of the meters are shut off, reduce fan speed as necessary to obtain a low meter pressurization.

7. Start at one end of planter and perform a meter clean-out (page 92).

8. Open the Y-tube gate feeding that meter. Let the air blow seed out of the meter. Use the meter shutter to start and stop seed ﬂow if using a small container.

9. Close the Y-tube gate and shutter for that meter.

10. Repeat procedure on the next meter in line. Continue with this procedure until you have reached the opposite end of the planter.

11. Final Check: During air system clean-out, it is common for a few seeds to dislodge and make their way to meters already cleaned. To avoid seed size causing problems for the next disk to be used, and to avoid crop mixing, make a pass along all the rows, opening and closing shutters, removing any stray seed.

Figure 113

Y-Tube Shut-Off

Figure 114

Airbox Clean-Out Door Open

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a. The “FILL METER” function can divert all the air to seed delivery, but only does so for a short period of time (~90 seconds).

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Meter 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 115

The planter includes an 817-811C container for meter 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.

Note: 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 11⁄2inch I.D. hose

• a worm drive clamp with a working diameter of

approximately 11⁄2 to 21⁄4inches

• a hacksawa with ﬁne-toothed blade

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.

4 2

Figure 115

Convert Container to Funnel

a. 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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Refer to Figure 116

The 817-811C seed collection accessory (funnel ) provided with the planter can be used in one of two ways:

• As provided, the 817-811C is a container that can hold

the entire seed volume present from the meter up to a Y-tube (or two where the row hose connects to the wing tubes).

• The 817-811C can also be used as a true funnel. For

this use, cut the end off the sump , and attach a hose or tube with 11⁄2inch (3.8 cm) inside diameter.

The funnel may be attached to the housing of the seed meter, freeing your hands for other tasks during clean-out. Normal use of the funnel is:

1. Close the seed inlet shutter on the meter (page 68). This minimizes the seed volume at disk removal.

2. Remove the rain cover (page 68). 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 disk (page 71).

6. Slowly open the seed shutter (page 68) to empty the seed up to the Y-tube or wing tube.

7. If the air system is running (and Y-tube open), there may be more seed than the funnel can hold (as a container). Use the shutter to turn seed ﬂow off, and empty funnel.

Refer to Figure 117

8. Clean seed from all brushes (shop vac recommended).

9. Inspect brushes (page 94).

10. Rotate funnel clockwise, remove and empty.

11. For imminent operations: Install next seed wheel or blank disk (page 72) for operations. Set inlet shutter for next seed (page 68).

12. For storage: Close seed inlet shutter. Leave disk out.

13. Re-install rain cover (page 68).

Seed Tube Clean-Out

The seed sensor in the seed tube can be obscured by build-up of dust, dirt and seed treatments. This can cause false low population alarms.

The planter incudes a seed tube brush (Great Plains part number 891-259C).

Funnel Positioned and Engaged

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.

Figure 116

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Figure 117

Brush Inspection

If the seed meter is empty, remove the seed disc and insert the brush into the seed tube from above. With the planter raised, you can also insert the brush from below, whether the meter is empty or not.

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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 118

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.

Figure 118

Brushes

29608

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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Meter Brush Replacement

Consult the Parts manual (401-625P) for current replacement part numbers.

Refer to Figure 119

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

Note: Do not loosen or remove any of the three5⁄16-18

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 lose). 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 120

4. Insert replacement strip brushes into grooves at holder bottom so that notched ends are at the bottom.

Refer to Figure 119

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.

cap screws retaining the brush holder.

12 15

Figure 119

Brush Replacement

29719

Figure 120

Strip Brush Notches

Seed Drop Brush Replacement

Refer to Figure 119

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 lose). Slide brush holder left and up. Remove drop brush.

3. Position new drop brush so that it is ﬂat against back of meter housing, and under ridges on leading edge of brush holder.

4. Slide holder forward/down to engage drop brush. Swing lower, then upper snap into engagement.

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Seed Disk Maintenance

Refer to Figure 121

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 inches (5 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 70) 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

1 2

Figure 121

Disk Seed Cells and Wiper

29613

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.

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.

401-625M Table of Contents Index 2013-08-13

Great Plains YP1625A Operator Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operator

Table of Contents

Important Safety Information

Look for Safety Symbol

Be Aware of Signal Words

Prepare for Emergencies

Be Familiar with Safety Decals

Wear Protective Equipment

Use A Safety Chain (Hydraulic Hitch)

Avoid High Pressure Fluids

Handle Chemicals Properly

Keep Riders Off Machinery

Use Safety Lights and Devices

Transport Machinery Safely

Shutdown and Storage

Tire Safety

Practice Safe Maintenance

Safety At All Times

Safety Decals

Danger: Crushing Hazard

Warning: Pinch-Crush

Warning: High Pressure Fluid Hazard

Warning: Excessive Speed

Caution: Tires Not A Step

Caution: Tire Pressure

Caution: General

Warning: Tire Pressure

Introduction

Description of Unit

Intended Usage

Document Family Covered Models

Using This Manual

Owner Assistance

Preparation and Setup

Initial Setup

Pre-Planting Setup

Hitching Tractor to Planter

Hydraulic Hookup

Hydraulic Hose Hookup

Current Style Color Coded Hose Handles

Older Style Hoses with Color Ties

Protecting Hydraulic Motor Seals

3-Point Hitch

Hitching with Hydraulic Tongue (Option)

Local Float on Hydraulic Tongue

Raising/Lowering Tongue

Hitching with Either Hitch

Electrical Hookup

Store Main Parking Stand

Lock Up Fertilizer Drive

Operating Instructions

Pre-Start Checklist

Wing Lock Overview

Unfolding The Planter

Prepare Hitched Tractor and Planter

Prepare Transport Hooks

Release Wing Locks

Release Wing Lock with 3-Point Hitch

Release Wing Lock with Hydraulic Hitch

Re-Phase Fold Cylinders

Partially Unfold

Lower Tongue

Fully Unfold

Remove and Store Transport Locks

Remove/Store Center Lift Locks

Remove/Store Caster Lift Locks

Unfold Closeout

Raising/Lowering Planter

Raising Planter

Lowering Planter

Re-phasing Lift System

Folding the Planter

Shut off Fan and Hydraulic Drive

Set Tractor and Tongue

Prepare 3-Point Hitch for Fold

Prepare Hydraulic Hitch for Fold