Great Plains YP825A3P Operator Manual

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Page 1

Table of Contents Index

Operator Manual

YP425A3P, YP625A3P & YP825A3P

4-, 6- and 8-Row 3-Point Yield-Pro® Air 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!

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

29997

ORIGINAL INSTRUCTIONS

Table of Contents Index

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Table of Contents Index

401-652M Table of Contents Index 2013-05-28

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Great Plains Manufacturing, Inc. Cover Index iii

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

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

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

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

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

Definitions.................................................................10

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

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

Using This Manual........................................................10

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

Preparation and Setup...............................................12

Initial Setup...................................................................12

Post-Delivery/Seasonal Setup......................................12

Pre-Planting Setup.......................................................12

Hitching Tractor to Planter............................................13

Electrical Hookup......................................................13

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

Protect Motor Seals..............................................16

Raise Parking Stands...............................................17

Leveling Planter............................................................18

Monitor Setup...............................................................19

Marker Setup (Option)..................................................19

Operating Instructions...............................................20

Pre-Start Checklist .......................................................20

Raising/Lowering Planter .............................................20

Transport......................................................................21

Transport Steps........................................................21

Typical Planter Weights............................................22

Loading Materials.........................................................23

Hopper Operations (s/n B1014R+)...........................23

Loading Seed (1.6 bu.hoppers)................................23

Hopper Operations (s/n B1013R-)............................24

Loading Seed (1 bu.hoppers)...................................24

Monitor Operation.........................................................26

Air System Operation...................................................27

Air and Seeding System Overview...........................28

Fan Circuit Operation (S/N-) ................................29

Fan Circuit Operation (S/N+) ...............................30

Fan General Operating Information......................31

Butterfly Valve Operation:.....................................31

Air-Pro® Meter Operation.............................................32

Meter Operation .......................................................32

Marker Operation (Option) S/N-...................................33

Folding The Markers.................................................33

Marker Operation (Option) S/N+..................................34

Marker Controls........................................................34

Field Set-Up Checklists................................................35

Field Operation ............................................................ 36

Short-Term Parking......................................................37

Long-Term Storage......................................................37

Adjustments ...............................................................38

Setting Material Rates..................................................39

Planting Rate Details................................................39

1. Rate: Monitor configuration:.............................39

2. Rate: Disk Selection:........................................39

3. Rate: Range Sprockets....................................40

4. Rate: Transmission Sprockets .........................40

5. Rate: Seed Inlet Shutter...................................41

6. Rate: Meter Pressurization............................... 41

7. Rate: Checking................................................. 41

Marker Adjustments (Option).......................................42

Marker Disk Adjustment...........................................42

Fan and Adjustment.....................................................43

Furrow Check:......................................................43

Fine-Tuning Meter Pressurization............................44

Alternate Skip/Double Check ...............................44

Gauge Wheel Adjustments..........................................45

Yoke Spring Adjustment...........................................45

Wheel Axle Adjustment............................................45

25AP Series Row Unit Adjustments.............................46

Row Unit Down Pressure.........................................47

Adjusting Down-Force..........................................47

Unit-Mount Cleaner Adjustments............................. 49

UMC Coulter Adjustments........................................50

UMC Coulter Depth Adjustment...........................50

Coulter Row Alignment ........................................51

Row-Unit Opener Disk Adjustments.........................52

Setting Planting Depth .........................................52

Opener Disc Contact Region ...............................52

Adjusting Disc Contact.........................................52

Side Gauge Wheel Adjustment................................53

Adjusting Gauge Wheel Scrapers........................54

Seed Meter Setup and Adjustment.......................... 55

Meter Rain Cover.................................................55

Seed Inlet Shutter Adjustment .............................55

Optimal Seed Pool Slopes ...................................56

Meter Re-Fill......................................................... 56

Air-Pro® Meter Disk Installation ............................... 57

Removing a Seed Disk......................................... 58

Row Unit Shut-Off.................................................... 58

Great Plains Manufacturing, Inc. provides this publication“as is” without warrantyofanykind,eithere xpressedorimplied.Whilee v eryprecaution has been takeninthe preparation of this manual, Great Plains Manufacturing,Inc. assumes no responsibility forerrors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Great Plains Manufacturing,Inc. reserves the rightto revise and improve its products as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.

2013-05-28 Cover Index 401-652M

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, TurboMax, Turbo-Till, Ultra-Till, Verti-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

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iv YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Sprocket Indexing (Stagger) ................................ 60

Seed Firmer Adjustments ........................................61

Keeton Seed Firmer Adjustment..........................61

Seed-Lok

Seed Firmer Lock-Up ........................61

Press Wheel Adjustment......................................... 62

Press Wheel Down Pressure...............................62

Press Wheel Stagger...........................................62

Press Wheel Centering........................................63

Troubleshooting......................................................... 64

Planting Rate Problems............................................... 64

Suggested Furrow Check:.................................... 64

Seed Pool Troubleshooting..........................................65

Magnehelic

Gauge Troubleshooting......................66

Population Troubleshooting Charts..............................67

Maintenance and Lubrication...................................74

Maintenance ................................................................ 74

Material Clean-Out.......................................................75

Funnel Conversion...............................................75

Seed Clean-Out (Container) ................................ 75

Seed Clean-Out (Funnel).....................................75

Meter Clean-Out ......................................................76

Alternate Meter Clean-Out...................................76

Meter Brush Maintenance............................................77

Meter Brush Replacement .......................................78

Seed Disk Maintenance........................................... 79

Cleaning and Storing Seed Disks ........................ 79

Speed Sensor Gap ...................................................... 79

Hydraulic Maintenance ................................................ 80

Bleeding Marker Hydraulics..................................... 80

Drive-Line Shear Pin....................................................80

Marker Maintenance (Option)...................................... 81

Marker Shear Bolt Replacement..............................81

Marker Grease Seal Cap .........................................81

Chain Maintenance.......................................................82

Meter Drive Chain.....................................................82

Spreaders and Scrapers...............................................83

Row-Unit Side Wheels..................................................83

Seed Flap Replacement...............................................84

Lubrication....................................................................85

Seed Lubricants........................................................89

Options........................................................................90

Appendix A - Reference Information ........................96

Specifications and Capacities.......................................96

YP425A3P Single-Row Data....................................96

YP425A3P Twin-Row Data.......................................97

YP625A3P Single-Row Data....................................98

YP625A3P Twin-Row Data.......................................99

YP825A3P Single-Row Data..................................100

YP825A3P Twin-Row Data.....................................101

Torque Values Chart ..................................................102

Tire Inflation Chart......................................................102

Hydraulic Diagrams....................................................103

Chain Routing.............................................................106

Appendix B - Pre-Delivery .......................................110

Appendix C - Initial Setup........................................112

Post-Delivery Checklist...............................................112

Seed Monitor Console Installation..............................112

Initial Marker Setup (Option).......................................113

Marker Speed Adjustment......................................113

Marker Extension....................................................114

Marker Extension Table......................................115

122-278S Scraper Installation....................................116

Warranty.....................................................................117

Index ..........................................................................119

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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 wordis limited to the most extreme situations, typically for machine components that, for functional purposes, cannot be guarded.

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

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

Prepare for Emergencies

▲ Be prepared if a ﬁre starts. ▲ Keep a ﬁrst aid kit and ﬁre extinguisher handy. ▲ Keep emergency numbers for doctor, ambulance, hospital

and ﬁre department near phone.

Be Familiar with Safety Decals

▲ Read and understand “Safety Decals”onpage6,

thoroughly.

▲ Read all instructions noted on the decals. ▲ Keep decals clean. Replace damaged, faded and illegible

decals.

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Wear Protective Equipment

Great Plains advises use of the following personal safety equipment.

▲ Hearing protection, such as earmuffs or earplugs, for

making planter adjustments with the hydraulic fan running.Prolonged exposure to loud noise can cause hearing impairment or loss.

Avoid wearing entertainment headphones while operating machinery. Operating equipment safely requires the full attention of the operator.

▲ Face shield, goggles or full face respirator when handling

treated seed, seed lubricants or seed treatment.

▲ Gloves for working near sharp objects, and for handing

lubricants or treatments.

Avoid High Pressure Fluids

Escaping ﬂuid under pressure can penetrate the skin, causing serious injury. This planter requires a Power-Beyond port, which is always under pressure when the tractor is running.

▲ Avoidthe hazard by relieving pressure at other remotes, and

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

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

check for suspected leaks.

▲ Wear protective gloves and safety glasses or goggles when

working with hydraulic systems.

▲ If an accident occurs, seek immediate medical assistance

from a physician familiar with this type of injury.

Keep Riders Off Machinery

Riders obstruct the operator’s view. Riders could be struck by foreign objects or thrown from the machine.

▲ Never allow children to operate equipment. ▲ Keep all bystanders away from machine during operation.

Use Safety Lights and Devices

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

▲ Use ﬂashing warning lights and turn signals whenever

driving on public roads.

▲ Use lights and devices provided with implement.

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

Transport Machinery Safely

Maximum transport speed for implement is 20 mph (32 kph), 13 mph (22 kph) in turns. Some rough terrains require a slower speed. Sudden braking can cause a towed load to swerve and upset.

▲ Do not exceed 20 mph. Never travel at a speed which does

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

▲ Comply with state and local laws. ▲ Do not tow an implement using a tractor with insufﬁcient

ballast.

▲ Carry reﬂectors or ﬂags to mark planter in case of

breakdown on the road.

▲ Keep clear of overhead power lines and other obstructions

when transporting. Refer to transport dimensions under “Speciﬁcations and Capacities” on page 96.

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

moving.

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Handle Chemicals Properly

Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals, plants, soil and property.

▲ Read and follow chemical supplier instructions. ▲ Wear protective clothing. ▲ Handle all chemicals with care. ▲ Agricultural chemicals can be dangerous. Improper use can

seriously injure persons, animals, plants, soil and property.

▲ Inhaling smoke from any type of chemical ﬁre is a serious

health hazard.

▲ Store or dispose of unused chemicals as speciﬁed by the

chemical manufacturer.

▲ If chemical is swallowed, carefully follow the chemical

manufacturer’s recommendations and consult with a doctor.

▲ If persons are exposed to a chemical in a way that could

affect their health, consult a doctor immediately with the chemical label or container in hand. Any delay could cause serious illness or death.

▲ Dispose of empty chemical containers properly. By law

rinsing of the used chemical container must be repeated three times. Puncture the container to preventfuture use. An alternative is to jet-rinse or pressure rinse the container.

▲ Wash hands and face before eating after working with

chemicals. Shower as soon as application is completed for the day.

▲ Apply only with acceptable wind conditions. Wind speed

must be below 5 mph. Make sure wind drift of chemicals will not affect any surrounding land, people or animals.

▲ Never wash out a hopper within 100 feet of any freshwater

source or in a car wash.

Shutdown and Storage

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

remove the key.

▲ Secure planter using blocks and supports provided. ▲ Detach and store planter in an area where children

normally do not play.

Tire Safety

Tire changing can be dangerous. Employ trained personnel using correct tools and equipment.

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

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

▲ When removing and installing wheels, use wheel-handling

equipment adequate for weight involved.

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Great Plains Manufacturing, Inc. Table of 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 stand between the tractor and planter during

hitching.

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

parts.

▲ Wear snug-ﬁtting clothing to avoid entanglement with

moving parts.

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

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

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Safety Decals

Safety Reﬂectors and Decals

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

▲ Read and follow decal directions. ▲ Keep lights in operating condition. ▲ Keep all safety decals clean and legible. ▲ Replace all damaged or missing decals. Order new decals

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

▲ When ordering new parts or components, also request

corresponding safety decals.

To install new decals:

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

2. Peel backing from decal. Press ﬁrmly on surface,

being careful not to cause air bubbles under decal.

31026

818-055C Slow Moving Vehicle Reﬂector

On the tube supporting meter pressurization manifold; 1 total

838-266C Red Reﬂectors

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

31003

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

838-265C Amber Reﬂectors

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

31003

838-267C Daytime Reﬂectors

On the back of two center seed hoppers (rear seed hoppers on twin-row planters) and on the back of the inner marker arm (option), below red reﬂector: 2 or 4 total

31003

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8 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

818-323C Danger: Possible Chemical Hazard

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

29998

818-337C Warning: Speed

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

818-339C Warning: High Pressure Fluid Hazard

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

818-525C Warning: Sharp Object (Option)

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

31003

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

818-682C Warning: Markers (Option)

On front face of inner marker arm; 2 total

31003

818-587C Caution: Read Operator’s Manual

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

CAUTION

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

Maximum inflation pressure of tires is 90 psi. Torque wheel bolts to 120 lb-ft.

838-595C Caution: Tire Pressure and Bolt Torque

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

838-595C

29960

29880

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10 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Introduction

Great Plains welcomes you to its growing family of new product owners. The 4-, 6- and 8-Row 3-Point Yield-Pro Air Planter (YP425A3P, YP625A3P & YP825A3P) has been designed with care and built by skilled workers using quality materials. Proper setup, maintenance, and safe operating practices will help you get years of satisfactory use from the machine.

Models Covered

YP425A3P-0430 4-Row, 30-inch

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

YP425A3P-0836 8-Row (4-Pair), 36-inch Twin-Row YP425A3P-0838 8-Row (4-Pair), 38-inch Twin-Row YP425A3P-0840 8-Row (4-Pair), 40-inch Twin-Row YP425A3P-0470 4-Row, 70 cm YP625A3P-0630 6-Row, 30-inch

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

YP625A3P-1236 12-Row (6-Pair), 36-inch Twin-Row YP625A3P-1238 12-Row (6-Pair), 38-inch Twin-Row YP625A3P-1240 12-Row (6-Pair), 40-inch Twin-Row YP625A3P-0670 6-Row, 70 cm YP825A3P-0830 8-Row, 30-inch

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

YP825A3P-1636 16-Row (8-Pair), 36-inch Twin-Row YP825A3P-1638 16-Row (8-Pair), 38-inch Twin-Row YP825A3P-1640 16-Row (8-Pair), 40-inch Twin-Row YP825A3P-0870 8-Row, 70 cm

Note: YP425A, YP625A and YP825A pull-type models

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

Description of Unit

The YP4-6-825A3P Planter is a three-point precision planting implement for use in conventional till, minimum-till, or light no-till conditions. The YP4-6-825A3P accepts unit-mounted coulters and/or row cleaners. Coulters make it suitable for light to moderate no-till conditions only. The YP4-6-825A3P includes 25AP Series openers with Air-Pro® meters supporting a wide choice of seed disks.

Using This Manual

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

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

R F

Figure 1

YP425A3P/625A3P/825A3P Planter

Intended Usage

Use the YP4-6-825A3P Planter to seed production-agriculture crops only. Do not modify the planter for use with attachments other than Great Plains options and accessories speciﬁed for use with the YP4-6-825A3P.

Document Family

401-652M Owner’s Manual (this document) 401-651B Seed and Fertilizer Rate manual 401-652P Parts manual 11001-1333 DICKEY-john® PM300 manual

Deﬁnitions

The following terms are used throughout this manual.

A crucial point of information related to the pr eceding topic. Read and follow the directions to r emain safe , avoid serious damage to equipment and ensure desired f ield results.

Note: Useful information related to the preceding topic. Right-hand and left-hand as used in

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

R F

B L

29997

B L

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Great Plains Manufacturing, Inc. Table of Contents Index Introduction 11

Owner Assistance

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

Refer to Figure 2

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

Record your YP4-6-825A3P Planter model and serial number here for quick reference:

Model Number:__________________________ Serial Number: __________________________ Your Great Plains dealer wants you to be satisﬁed with

your new machine. If you do not understand any part of this manual or are not satisﬁed with the servicereceived, please take the following actions.

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

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

Figure 2

Serial Number Plate

For further assistance write to:

Product Support

Great Plains Mfg. Inc., Service Department

PO Box 5060

Salina, KS 67402-5060

31027

785-823-3276

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Preparation and Setup

This section helps you prepare your tractor and YP425A3P, YP625A3P & YP825A3P Planter for use, and covers tasks that need to be done seasonally, or when the tractor/planter conﬁguration changes.

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

Initial Setup

See “Appendix B - Pre-Delivery” on page 110 for pre-delivery items (normally completed by dealer), and ﬁrst-time/infrequent setup tasks, including:

• Install seed monitor console in tractor (page 112).

• Set marker extension (Option, page 114).

• Install any Options not factory- or dealer-installed.

Post-Delivery/Seasonal Setup

On initial delivery, use with a new tractor, and seasonally, check and as necessary, complete these items before continuing to the routine setup items:

• Bleed hydraulic system (page 80).

Pre-Planting Setup

Complete this checklist before routine setup:

❑ Read and understand “Important Safety

Information” on page 1.

❑ Check that all working parts are moving freely, bolts

are tight, and cotter pins are spread.

❑ Check that all grease ﬁttings are in place and

lubricated. See “Lubrication” on page 85.

❑ Check that all safety decals and reﬂectors are

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

❑ Inﬂate tires to pressure recommended and tighten

wheel bolts as speciﬁed. See “Torque Values Chart” on page 102.

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Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 13

Hitching Tractor to Planter

Crushing Hazard:

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

1. To prevent soil compaction on rows, set tractor wheels at 60 inches center-to-center. For hillsides and steep slopes, set tractor wheels as wide as possible for maximum stability.

2. Adjust tractor lower links to maximize lifting height.

3. Set tractor sway blocks to minimize side sway. Set tractor hitch lift control to Float.

4. Back tractor up to planter. Align lower links with the lower hitch clevis on planter. Adjust hitch bushings and spacers supplied with planter according to the category of your tractor. Lock pins in place.

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

• For Category II tractors, hitch tractor top link to

lower hole pair in planter clevis.

• For Category II quick couplers and Category III

tractors, hitch tractor top link to center hole pair in planter clevis.

Electrical Hookup

Refer to Figure 4

Your planter is equipped with systems that require separate electrical connections. For future reference, note any optional connectors on this checklist.

❑ Lighting connector (standard)

❑ Monitor connector (standard) ❑ __________________________ ❑ __________________________

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

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

Three Point Hitch

Figure 3

31048

Figure 4

Connector Identiﬁcation

25236 31033

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Hydraulic Hose Hookup

High Pressure Fluid Hazard:

Shut down tractor before making hydraulic connections. Only trained personnel should work with system hydraulics.

Escaping ﬂuid under pressure can have sufﬁcient pressure to penetrate the skin causing serious injury. If an accident occurs, seek immediate medical assistance from a physician familiar with this type of injury.

Use paper or cardboard, NOT BODY PARTS, to check for leaks. Wear protective gloves and safety glasses or goggles when working with hydraulic systems.

Refer to Figure 5

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

Current Style Color Coded Hose Handles

Color Hydraulic Function

Green Marker Black Fan

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

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

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

Figure 5

Color Coded Hose Handles

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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 6 and Figure 7 on page 16

Hydraulic hoses are color coded to help you hookup hoses to your tractor outlets. Hoses that go to the same remote valve are marked with the same color tie.

Color Hydraulic Function

Orange Marker White Fan

To distinguish hoses on the same hydraulic circuit, refer to hose label.

• The fan motor case drain line is a separate hose with

no label plate. This hose is always connected ﬁrst and disconnected last.

• The hose under an extended-cylinder symbol feeds a

cylinder base end or motor return line.

• The hose under a retracted-cylinder symbol feeds a

cylinder rod end, or motor pressure line.

Secure hoses and cables so that they have sufﬁcient slack for hitch movements, but cannot get caught between moving parts of planter. Failure to safely route and secure hoses and cables could result in damage requiring component repair/replacement, and lost ﬁeld time.

Make connections in a speciﬁc order, described on the next page.

Figure 6

Older Style Hoses with Label

27270

Motor Seal Damage Risk:

Case Drain Hose must be attached ﬁrst, prior to inlet and return hoses being connected.

Case Drain Hose must be detached last, to prevent damage to the fan motor.

Hydraulic Motor Performance Risk:

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

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16 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Protect Motor Seals Applies to planters with serial numbers:

(YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-)

1. Connect the fan case drain line ﬁrst, before

making any other connections. Connect this line to a low pressure drain port.

Note: Case drain hose has the smaller

⁄4inch I.D. hose

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

2. Connect the fan return line second.

Note: Fan pressure return hose has a large (1.06 inch/

2.7 cm diameter) quick coupler.

3. Connect the fan motor pressure hose third. If the

tractor has a priority remote, use it for the fan connection.

4. Make marker (option) connections.

Machine Damage Risk:

DO NOT connect the fan case drain line to a power-beyond-port. Case Drain Hose must be attached ﬁrst, prior to inlet and return hoses being connected. Case Drain Hose must be detached last, to prevent damage to the fan motor.

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

For complete instructions see “Fan Circuit Operation (S/N+)” on page 30.

1. Connect the motor return line , to remote circuit

return (Extend port) or to sump.

2. Connect the motor inlet line to a tractor remote

capable of 20 liters per minute. If a priority remote is available, use it for the fan.

Figure 7

Fan Hoses (S/N-)

29781

Figure 8

31886

Fan Hoses (S/N+)

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

Raise Parking Stands

Refer to Figure 3

3. Use tractor hitch circuit to raise planter slightly off parking stands.

4. Remove hairpin and cross-pin .

5. Slide stand tube up until lower storage hole aligns with bracket hole.

6. Insert cross-pin and secure with hairpin.

7. Repeat for other side of planter.

Figure 9

Parking Stand

31049

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18 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Leveling Planter

For row units to function correctly, planter must be:

• level from side to side,

• level from front to back, and;

• at correct tool bar height. Perform this setup on level ground in representative ﬁeld

conditions.

Refer to Figure 10

1. Raise planter so that gauge wheels are just off ground.

2. At each gauge wheel, measure the pre-compressed, no-load length of the yoke spring .

All axles should be in the same (upper or lower) arm holes. All springs should have this same length. Note this length for step 9.

See page 45 for factory setting, and adjustments for local conditions.

3. Check tire pressures of gauge wheels. As necessary, inﬂate to speciﬁcations (page 102).

Refer to Figure 11

4. Measure height from bottom of main tool bar to

ground, at each end. If this dimension differs by more than1⁄2inch (6.4 mm) at each end, adjust lower links of tractor to level side-to-side.

Note the current height for step 7, and what lowering would be required to make that 26 inch (66 cm).

5. Check front-to-back level at top of main tool bar. If unlevel, adjust top of tractor three-point to level.

6. Pull forward slowly, and lower the planter to approximately 26 inch (66 cm). Stop the tractor and set the parking brake.

7. Check the tool bar height . Adjust the hitch height

until it is 26 inch. If available, set a hitch stop control to capture this height.

8. Check that the row units are running level with the ground.

9. Check that the gauge wheels are all in solid ground contact, tires slightly compressed, and that the springs are slightly compressed from the length checked at step 2.

Hitch conﬁguration during planting can vary between tractor models, and due to ﬁeld conditions. Great Plains recommends starting with the hitch set to Float or Position/Depth Control (and not Load or Draft Control).

Figure 10

31053

Gauge Wheel Yoke

Figure 11

Tool Bar Height and Leveling

31051

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Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 19

Monitor Setup

Refer to Figure 19

The standard DICKEY-john® PM300 system monitors the following elements of a YP4-6-825A3P planter:

• Seeds at each row unit seed tube.

• Ground speed. See “Seed Monitor Console Installation” on page 112. Refer to the DICKEY-john® PM300/PM332/PM400

Operator’s Manual for monitor operations. After installation, and prior to ﬁrst ﬁeld use, the monitor

must be setup with the row spacing and speed sensor constant, as well as your preferences for information display. Row count is auto-assigned, but any other factory defaults are not likely to be correct for your planter.

Row spacing data may be found in the Appendix. For speed setup, Great Plains recommends using the

400-foot calibration described in the DICKEY-john manual, rather than using a theoretical “# of pulses”. Perform the calibration run in representative ﬁeld conditions, as soil conditions, surface looseness and other tillage practices can cause variations in the effective rolling radius of the ground drive wheel.

Prior to each planting session, set any desired limits for speed and population for the current crop.

Figure 12

Monitor Primary Screen

29971

Marker Setup (Option)

Prior to ﬁrst use, check and adjust:

•“Marker Speed Adjustment” on page 113. Prior to ﬁrst use, and whenever changing row spacings,

set or reset:

•“Marker Extension” on page 114. Prior to each planting session, check and adjust:

•“Marker Disk Adjustment” on page 42.

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20 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Operating Instructions

This section covers general operating procedures. Experience, machine familiarity, and the following information will lead to efﬁcient operation and good working habits. Always operate farm machinery with safety in mind.

Pre-Start Checklist

Perform the following steps before transporting the YP4-6-825A3P planter to the ﬁeld.

❑ Carefully read “Important Safety Information” on

page 1.

❑ Install seed disks appropriate for crop. See

“Air-Pro® Meter Disk Installation” on page 57.

❑ Lubricate planter as indicated under “Lubrication”

on page 85.

❑ Check all tires for proper inﬂation. See “Torque

Values Chart” on page 102.

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

shown in “Torque Values Chart” on page 102.

❑ Check planter for worn or damaged parts. Repair or

replace parts before going to the ﬁeld.

❑ Check hydraulic hoses, ﬁttings, and cylinders for

leaks. Repair or replace before going to the ﬁeld.

High Pressure Fluid Hazard:

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

Raising/Lowering Planter

The planter is raised and lowered using the tractor 3-point hitch.

In ﬁeld conditions, drive forward while lowering openers into ground. Never back up with openers in ground.

Machine Damage Risks:

Always fold markers (page 33) before raising or lowering. Always raise the planter for any reverse/backing. Except on pavement, begin forward motion beforelowering, as rows move backward slightly as arms swing up.

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

Transport

Loss of Control Hazard:

Do not transport with insufﬁcient ballast or with an inadequate tractor.

Check that your tractor has enough ballast for the weight of the drill. A tractor with insufﬁcient ballast has insufﬁcient traction at the front wheels, causing loss of control, leading to a serious road accident, injury or death. Refer to your tractor operator manual for ballast requirements.

Check that tractor is rated for the fully-ballasted load. An inadequate tractor may be damaged by over-loading. It is also at risk for loss of control in turns and braking, leading to a serious road accident, injury or death.

The planter can weigh nearly 11,000 pounds (5000 kg), depending on conﬁguration and seed load. The tractor MUST be rated and ballasted for the load. Do not tow if planter exceeds the load rating of the vehicle. See tables on next page for typical conﬁguration weights.

Transport Steps

Transport only with markers stowed (page 33).

1. Check that planter is securely hitched to a sufﬁcient tractor (page 13).

2. Verify correct operation of lights.

3. Fold markers if unfolded (Option, page 33).

4. Raise planter (page 20).

Increased Hazards and Wear Risks:

Seed may be loaded prior to travel, but increases stopping distance, increases the need for caution in turns and braking, and increases tire wear.

5. If any seed is in hoppers or delivery hoses, close seed inlet shutters at meters (page 58).

6. Plan the route. Avoid steep hills.

7. Always have lights on for highway operation.

8. Do not exceed 32 kph (20 mph). Comply with all national, regional and local laws when traveling on public roads.

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

10. Transport slowly over uneven or rough terrain.

Braking and Loss of Control Hazard:

Do not exceed 20 mph (32 kph)..

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22 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Note:

1. Typical: UM Coulters. No Markers or Row Cleaners.

Note:

1. Typical: UM Coulters. No Markers or Row Cleaners.

Note:

1. Typical: UM Coulters. No Markers or Row Cleaners.

Typical Planter Weights

Approximate Weights of Representative YP425A3PConfigurations -0470 -0430 -08TR -0436 -0836 -0438 -0838 -0440 -0840

Base Planter Typical¹ Empty Typical¹ Full Maximum² Empty Maximum² Full

Center of Gravity is approximately 36in aft of hitch.

2. Maximum: UMC+RC, Markers.

Approximate Weights of Representative YP625A3PConfigurations -0670 -0630 -12TR -0636 -1236 -0638 -1238 -0640 -1240

Base Planter Typical¹ Empty Typical¹ Full Maximum² Empty Maximum² Full

Center of Gravity is approximately 0in aft of hitch.

2. Maximum: UMC+RC, Markers.

1500 kg 3300 lb 4600 lb 3000 lb 4800 lb 3000 lb 4800 lb 3600 lb 4800 lb 1600 kg 3500 lb 4900 lb 3100 lb 5100 lb 3100 lb 5100 lb 3700 lb 5100 lb 1700 kg 3800 lb 5500 lb 3400 lb 5700 lb 3400 lb 5700 lb 4000 lb 5700 lb 1900 kg 4200 lb 5800 lb 3900 lb 6000 lb 3900 lb 6000 lb 4500 lb 6100 lb 2100 kg 4500 lb 6500 lb 4200 lb 6700 lb 4200 lb 6700 lb 4800 lb 6700 lb

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

2000 kg 4300 lb 6200 lb 4200 lb 6100 lb 4200 lb 6100 lb 4200 lb 6100 lb 2100 kg 4500 lb 6600 lb 4500 lb 6500 lb 4500 lb 6500 lb 4500 lb 6500 lb 2300 kg 5000 lb 7500 lb 4900 lb 7500 lb 4900 lb 7500 lb 4900 lb 7500 lb 2500 kg 5400 lb 7800 lb 5300 lb 7700 lb 5300 lb 7700 lb 5300 lb 7700 lb 2700 kg 5900 lb 8700 lb 5800 lb 8700 lb 5800 lb 8700 lb 5800 lb 8700 lb

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

Approximate Weights of Representative YP825A3PConfigurations -0870 -0830 -16TR -0836 -1636 -0838 -1638 -0840 -1640

Base Planter Typical¹ Empty Typical¹ Full Maximum² Empty Maximum² Full

Center of Gravity is approximately 0in aft of hitch.

2. Maximum: UMC+RC, Markers.

401-652M Table of Contents Index 2013-05-28

2300 kg 5000 lb 7400 lb 5500 lb 8000 lb 5500 lb 8000 lb 5500 lb 8000 lb 2300 kg 5300 lb 8100 lb 5800 lb 8600 lb 5800 lb 8600 lb 5800 lb 8600 lb 2600 kg 5900 lb 9300 lb 6400 lb 9800 lb 6400 lb 9800 lb 6400 lb 9800 lb 2800 kg 6300 lb 9500 lb 6900 lb 10100 lb 6900 lb 10100 lb 6900 lb 10100 lb 3100 kg 6900 lb 10700 lb 7500 lb 11300 lb 7500 lb 11300 lb 7500 lb 11300 lb

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

Page 27

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

Loading Materials

Hopper Operations (s/n B1014R+)

Refer to Figure 15 and Figure 16

Hopper lids :

• the lids have two spring clips, one at each end .

• there is a molded handle at the rear end of the

hopper lid (although the lid is reversible).

To open a hopper:

1. Grasp the handle and snap lid off.

2. Park the lid length-wise on the side lip of the hopper, using the hooked ends of each spring clip inside the lid (see Figure 18 on page 25).

The seed hoppers themselves are designed to be removed, but are not removed for routine operations.

Loading Seed (1.6 bu.hoppers)

3. Install correct seed disks (page 57).

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

4 5 6

5. Open hopper lid .

6. Inspect the hopper for leftover seed and debris. Clean out anything other than the seed to be planted. See “Material Clean-Out” on page 75.

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

Figure 13

Hopper Lid

32446

B L

Figure 14

Air-Pro® Row Hopper

(serial number B1014R+)

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24 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Loading Materials

Hopper Operations (s/n B1013R-)

Refer to Figure 15 and Figure 16

Hopper lids have distinct ends:

• the hinge end (with two lugs) mates with the front end of the hopper.

• the latch end (with a single lug) mates with the rear end of the hopper.

To open a hopper:

1. Pull the rear of the lid edge to the rear.

2. Swing the lid up at rear.

3. Disengage the lid at the front lugs.

4. Park the lid on the front lip of the hopper, using the

hook-plate feature inside the lid (see Figure 17 on page 25).

The seed hoppers themselves are designed to be removed, but are not removed for routine operations.

Loading Seed (1 bu.hoppers)

5. Install correct seed disks (page 57).

6. Close all seed inlet shutters (page 58).

7. Check that each hopper is correctly seated and

secured:

pivot hooks engage at front,

latch engaged at rear,

seed hose secured to

discharge weldment with

clamp.

8. The hopper slide gate may be left open (by pulling

back), and doing so slightly increases seed capacity.

Note: If slide gate is open for seed loading, seed inlet

shutters must be closed unless the planter is already at the ﬁeld. Transporting with both gates and shutters open can plug meters.

9. Open hopper lid .

10. Inspect the hopper for leftover seed and debris.

Clean out anything other than the seed to be planted. See “Material Clean-Out” on page 75.

R F

Figure 15

Hopper Lid Hinge Lugs

Figure 16

Air-Pro® Row Hopper

(serial number B1013R-)

28131

29975

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

Loading Seed, continued

Possible Agricultural Chemical Hazards:

Read and follow all supplier cautions for safe handling of treated seed.

Irritant and Chronic Exposure Hazards:

Do not mix lubricants into seed with hands or any part of body. Wear protective equipment. Use tools. See page 89.

11. Pre-mix seed and lubricant. For clean seeds other than milo, cotton, and sunﬂowers sprinkle Ezee Glide Plus per bushel or unit (60 ml per 35 liters) of seed.

For milo, cotton, and sunﬂowers double the application to1⁄2cup (or more) per bu.or unit (120 ml per 35 liters) of seed.

⁄4cup of

Figure 17

Adding Seed Lubricant

1 bu.Hoppers

(serial number B1013R-)

29976

Population Risk:

The seed must be properly lubricated, starting with the ﬁrst seed through the meter. If unable to pre-mix prior to loading, pre-mix at least one gallon (4 liters) per hopper, and load this seed ﬁrst. Fill the hoppers to half full with fresh seed. Add half the lubricant and stir. Complete ﬁlling the hoppers and sprinkle the remaining lubricant on top.

12. Add seed and lubricant to hoppers.

Refer to Figure 13 and Figure 14 on page 23 For 1.6 bu.hoppers (s/n B1014R+)

13. Close lids. Position front end of lid over front end lip of hopper. Snap lid ﬁrmly in place.

Refer to Figure 15 and Figure 16 on page 24 For 1 bu.hoppers (s/n B1013R-)

14. Close lids. With lid tilted up at a slight angle, hook the two front hinge lugs under the front hopper lip. Swing down, keeping ﬁngers clear of lug, and latch the single rear lid lug on rear hopper lip.

Equipment Loss Risk:

Check that all 3 lid lugs are completely under the hopper lip, or the lid may come off in transport.

Figure 18

1.6 bu.Hoppers

(serial number B1014R+)

32447

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26 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Monitor Operation

Refer to Figure 19

The standard DICKEY-john® PM300 system monitors the following elements of a YP4-6-825A3P planter:

• Seeds at each row unit seed tube: Medium and larger seeds are individually counted with

high accuracy. Small seed sensing may be limited to seed stoppage (“blockage”) detection.

• Ground speed: The standard magnetic pickup

at the ground drive

allows the monitor to calculate and report population.

Once setup for the planter and your display preferences, and conﬁgured for the current crop rates/limits, the monitor is typically used in the “OPERATE” mode. Refer to the DICKEY-john® PM300/PM332/PM400 Operator’s Manual for monitor operation details.

Both the DICKEY-john®manual and this manual contain trouble-shooting information for apparent monitor problems.Check both manuals,as the focus and content is not identical.

Figure 19

Monitor: Typical Operate Screen

29972

a. An optional radar speed sensor is available, as are Y-cables to accept input from an existing radar on the tractor.The magnetic pickup

may be preferred, as both speed and seed ﬂow fall to zero at lift. With radar,the monitor cannot tell that seeding should have stopped. You may experience more nuisance alarms with radar.

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

Air System Operation

B L

Figure 20

Planter Air System for Air-Pro® Seed Metering

Meter Pressurization System Elements ( shows air direction)

1 7 13

Hydraulic Fan Seed Hose Seed Tube Sensor (Figure 21)

2 8 14

Butterﬂy Valve Air-Pro® Seed Meter Sensor Port (Figure 21)

3 9 15

Meter Pressurization Air Seed Inlet Shutter Pressure Sensor Lines

4 10 16

Row Pressurizing Tube Seed Pool (Figure 21) Pressure Sensor Chamber

5 11 17

Seed Hopper Disk Seed Pocket (Cell) Magnehelic® Pressure Gauge

6 12

Slide Gate Seed Hose (Figure 21)

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28 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Air and Seeding System Overview

Refer to Figure 20, on page 27, and Figure 21.

The hydraulic fan supplies air exclusively for meter

operation. Fan rpm is operator-adjusted (page 31), normally via the tractor circuit’s hydraulic ﬂow control.

A manually-adjusted butterﬂy valve is provided at the

fan outlet. See page 31 for valve adjustment. The manifold system delivers fan air across the

planter. It includes passive internal design features to balance pressure across the planter.

Separate pressurization tubes route manifold air to

each row unit. Seed is delivered from the seed box by gravity

through the sliding seed tubes , to the inlet of the Air-Pro® seed meter .

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

also minimizes air loss back up the seed inlet tube, and is also used during row shut off. See page 55 for shutter adjustments.

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

In the seed tube, the seed sensor detectspassage of

seeds. Medium size and large seeds are counted individually. With smaller seeds, most are detected, allowing the monitor to detect stoppages.

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

pressures. The averaged pressure is reported by a Magnehelic

gauge visible to the tractor operator. See page 43 for

use of the gauge in making fan adjustments. A sensor in each seed tube reports seed passage to

the seed monitor. Larger seeds are counted individually. For smaller seeds, the system acts as a blockage monitor.

Note: Useofthe specialblankdisk(page 59),and closing

the seed inlet shutter (page 55), are particularly important when a sensor row is shut off.

Note: On any row,running a normaldisk with no seed, or

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

Note: Donotoperate in thegroundwith the fanshut off,or

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

Figure 21

Air-Pro® Meter, Disk Side

31040

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

Fan Circuit Operation (S/N-) Applies to planters with serial numbers:

(YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-)

See also “Fan and Adjustment” on page 43.

Refer to Figure 22

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

4. The fan hydraulic circuit includes a check valve ,

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

Correct fan direction is shown at . If reversed fan is

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

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

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

Figure 22

31029

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

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

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30 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Fan Circuit Operation (S/N+) Applies to planters with serial numbers:

(YP3P425A s/n B1005M+) (YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+)

See also “Fan and Adjustment” on page 43.

Refer to Figure 23

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

Twohydraulic hoses serve the fan, and must be properly connected for the fan to operate in the correct direction , and at recommended speeds. See “Hydraulic Hose Hookup” on page 14.

1. Connect the motor return line , to remote circuit

2. Connect the motor inlet line to a tractor remote

3. The fan hydraulic circuit includes a check valve ,

return (Extend port) or to sump. The planter includes a pressure-relief QD coupler for

the return line. This prevents motor damage in the event that the return line is not connected, or is connected incorrectly; however, an oil spill results if the return line is not correctly connected.

capable of 20 liters per minute. If a priority remote is available, use it for the fan.

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

Figure 23

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

31869

Correct fan direction is shown at . If reversed fan is suspected, observeit during shutoff, as the direction of motion is easier to see at lower rpmsas it slows to a stop (initial startup is virtually instantaneous, making observation at start difﬁcult).

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

Note: Fan speed can change as oil heats to operating

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

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

Figure 24

Fan Hoses

31886

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Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 31

Fan General Operating Information

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

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

Refer to Figure 25

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

• The objective is to obtain recommended meter pressurization, and maintain it during end-of-pass marker fold, lift and turn.

• For any setup adjustment, operate the tractor engine at typical ﬁeld rpms, and not at idle.

• Preset the butterﬂy valve. Use any setting that you previouslydeveloped for the crop/disk/range (see Note at right), otherwise:

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

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

• Set the fan circuit ﬂow to bring the gauge reading to near the recommended value.

• Fine tune the meter pressurization with the butterﬂy valve.

• If the tractor has marginal ﬂow available, or the list circuit has priority, you may need to experiment with combinations of fan ﬂow and butterﬂy valve settings.

Always start the fan with a low ﬂow setting. Gradually bring fan up to the recommended initial meter

pressurization. At excessive rpm, too much air ﬂow can cause:

• oil heating

• slow lift times

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

Butterﬂy Valve Operation:

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

0° is wide open - maximum air ﬂow. 90° is closed - minimum air ﬂow. The valve provides the most effect at settings between

20° and 70°. Starting at 30° reduces the fan workload. Starting at 45° provides the most adjustment range up or

down. Note: Youmay ﬁnd that different crop, seed disk and rate

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

Low Population Risk at Turns:

The fan requires up to 4.5 gpm. This ﬁgure does not include oi for lift/lower or oil for marker operation. Aggressive lift/lowe operations, and simultaneous lift/marker operations, can reduce fan rpm below that needed to pressurize meter disks. I seed falls out of pockets, low population bands will occu shortly after turns.

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

70°

45°

20°

Figure 25

Fan Butterﬂy Valve Handle

1 2

25137

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Air-Pro® Meter Operation

Refer to Figure 26

The meter disk is driven, top forward, by a chain drive (not shown) always connected to the section drive shaft. At non-planting rows, use a blank disk (page 59).

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

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

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

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

Meter Operation

1. Install disks for your crop/population range per the Seed and Fertilizer Rate manual and the instructions beginning on page 57 of this manual.

2. Open the shutter at planting rows to the recommended initial setting (from the Seed Rate charts). At unused rows, install a blank disk (page 59) and close shutter.

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

4. Operate fan to achieve suggested manifold pressure (Seed and Fertilizer Rate manual, and page 43).

5. Open slide gates to ﬁll meters (page 24).

6. With all rows primed, rotate meters one turn to ﬁll pocketsto edge of drop brush.Rotate the drive shaft (top forward) with a7⁄8inch (23 mm) wrench, or raise and rotate ground drive wheel (top forward).

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

See also: “Seed Pool Troubleshooting” on page 65, “Meter Clean-Out” on page 76, and “Meter Brush Maintenance” on page 77.

Figure 26

Air-Pro® Seed Meter at Row

29825

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Marker Operation (Option) S/N-

THIS PAGE APPLIES ONLY TO MODELS: (YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-)

Before Operating Markers

• Make sure cylinders are properly bled. See “Marker Maintenance (Option)” on page 81.

• This section presumes correct marker extension for your pass spacing. If this has not been set, or needs to be changed, see “Marker Extension” on page 114.

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

Speed Adjustment” on page 113.

Marker Unfold (one side)

1. Move tractor hydrauliccontrol (leveror switch) for the

marker circuit (typically to Extend). Hold until marker is completely unfolded. Do not leave tractor control in detent.

2. If the marker side operating is not the desired side,

let it unfold part way, and move the tractor’s circuit control to Retract. When the marker is folded, move the circuit control to Extend to activate the other side.

Both Sides Unfolded

With both markers in the upright/tilted positions:

1. Unfold either side, and when completely deployed:

2. Move lever/switch to Retract momentarily,and return

to Extend to deploy other side.

Overhead, Crushing and Sharp Object Hazards:

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

Row Marker Operation

To alternate which side is marked:

1. Move the tractor’scircuit control to Retract. Hold until

marker is folded.

2. Move the tractor’s circuit control to Extend. Hold until

the new side’s marker is fully unfolded.

3. Return tractor control to neutral/off.

Folding The Markers

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

1. Move the tractor’scircuit control to Retract. Hold until

marker is folded.

2. Tilt markers down for transport or storage.

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Marker Operation (Option) S/N+

THIS PAGE APPLIES ONLY TO MODELS: (YP3P425A s/n B1005M+) (YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+)

Before Operating Markers

• Make sure cylinders are properly bled. See “Marker Maintenance (Option)” on page 81.

• This section presumes correct marker extension for your pass spacing. If this has not been set, or needs to be changed, see “Marker Extension” on page 114.

Speed Adjustment” on page 113.

Marker Unfold (one side)

1. Move tractor hydraulic control (lever or switch) for the

marker circuit (typically to Extend). Hold until marker is completely unfolded. Do not leavetractor control in detent.

2. If the marker side operating is not the desired side,

let it unfold part way, and move the tractor’s circuit control to Retract. When the marker is folded, move the circuit control to Extend to activate the other side.

Overhead, Crushing and Sharp Object Hazards:

Row Marker Operation

To alternate which side is marked:

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

marker is folded.

2. Move the tractor’scircuit control to Extend. Hold until

the new side’s marker is fully unfolded.

3. Return tractor control to neutral/off.

Marker Controls

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

When the planter is lowered:

• One side marker will unfold.

• Hold the hydraulic control until marker is fully extended.

When the planter is raised:

• The marker will fold up.

• Hold the hydraulic control until the marker is fully folded.

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

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Field Set-Up Checklists

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

Mechanical Checklist (Hitching) Page

Planter hitched 13 Parking stands raised 17

Electrical Checklist Page

Verify electrical hookups solid 13 Check seed monitor terminal and observe

any diagnostic messages Option: Verify that, when planter is

lowered, optional radar speed sensor is pointed at ground, at an angle approximately 35° below horizontal.

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

Hydraulic System Checklist Page

Check tractor hydraulic reservoir full Fan case drain

Fan return

Fan motor pressure side (retract) Inspect connections for leaks Check fan speed and airﬂow direction

a. Operate fan brieﬂy. Observe rotor blades spinning

toward exit port as fan slows to a stop.

Mechanical Checklist (post-Hitching) Page

Planter leveled 18 Marker extension set 114 Marker disc angle set 42 Markers folded (unless already at start of

ﬁrst planting row)

Planter Meter Drive Checklist Page

Check chain lubrication and slack 82 Calibrate speed sensor pulses with planter

lowered. Seeding: Set/check Range and

Transmission against rate chart

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

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

Air System Checklist Page

Fan butterﬂy valve set 31 Seed loaded. Lids closed. 24 Meter shutters open to chart value 55 No air leaks (except from seed hoppers) Hoses and tubing - no sags, no pinches

Check both manifold and sensor lines Hoses fully connected to meters

Row Units Checklist Page

Preset depth handles alike. 52 Preset down force springs alike, except in

tracks. Option: Set all unit-mounted coulters to

⁄4inch shallower than opener blades.

Check coulter alignment to row 51 Check closing wheel alignment 62 Set press wheels alike, except in tracks. 62 Check action and contact of side depth

wheels

Check wheel scraper gaps (if installed) 54

Slide gates open 24

Meters Checklist Page

Corn? Check timing of meters for twin-row

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

Correct disks for seed Start fan. Operate at ﬁeld manifold

pressure. Rotate meter drive shafts one turn disks

with seed.

a. Refer to Seed and Fertilizer Rate manual.

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Field Operation

Perform all steps in “Pre-Start Checklist” on page 20 and “Field Set-Up Checklists” on page 35.

First Pass Operation Checklist Page

1. Slide gates open. Shutters set. 32

2. Raise planter and line up at start of ﬁrst planting row.

3. Prime meters with seed. Leave fan running.

4. Unfold marker on next-row side. 33

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

6. Stop. Assess:

• planting depth

• seed spacing

• press wheel operation

7. Make necessary adjustments 38

8. Resume planting. -

Sharp Field Turnsa Checklist

1. Fold marker 33

2. Raise planter when fold is complete 20

3. Make turn

4. Lower planter 20

5. Unfold marker on next-row side. 33

6. Resume planting.

a. Monitor manifold pressure during end-of-pass

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

Page

Suspending Planting Checklist Page

1. Stop tractor -

2. Fan hydraulic circuit to Float or Neutral 29

3. Hydraulic drive circuit to Float or Neutral -

4. Fold Marker 33

5. Raise planter 20

Ending Planting Checklist Page

1. Suspend operations as above, then

2. Lights ON -

3. Transport 21

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

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

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Short-Term Parking

1. Fold markers (page 33).

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

3. Raise planter to just off ground.

4. Lower parking stands to ground and pin (page 17).

5. Lower planter.

6. Set hydraulic circuits to neutral.

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

8. Disconnect electrical cables, capping where provisioned.

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

Long-Term Storage

1. Complete Parking steps (page 37). Park the planter indoors if possible.

2. See “Material Clean-Out” on page 75. Clear all seed from seed container, air box, seed delivery system and meters.

3. Close slide gates and latch hopper lids.

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

Possible Chemical Hazard:

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

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

6. Close seed inlet shutters at meters (to prevent pest entry to seed hoses). Thoroughly clean seed and seed treatment residue from seed meters. See “Meter Clean-Out” on page 76, for more information.

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

8. Lubricate all points listed in Maintenance.

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

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

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

12. Cover planter with a tarp if stored outside.

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Adjustments

Toget full performance from your YP425A3P, YP625A3P & YP825A3P planter, you need an understanding of all component operations, and many provide adjustments

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

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

Adjustment Page The Adjustment Affects

Frame height 21 Planting depth consistency Frame level 18 Planting consistency Air System 27

Fan Speed 31 Optimal seed distribution

Meter Pressurization (values from SRM Planting Rate SRMaRefer to Seed and Fertilizer Rate manual Marker Adjustments

Marker Extension 114 Intended swath spacing

Marker Speed Adjustment 113 Reliable marker operation 25AP Row Unit Adjustments

Opener Depth 52 Planting depth

Row Unit Down Pressure 47 Planting depth uniformity

Row Unit Lock-Up 60 Single/twin-row operation

Row Cleaner Adjustments (Option) 49 Row preparation

Coulter Adjustments (Option) 50 Seed depth uniformity

Opener Disk Adjustments 52 Seed depth, seed-to-soil contact

Side Depth Wheels 52 Seed depth, prevents plugging

Adjusting Gauge Wheel Scrapers 54 Consistent seed furrow depth

Seed Meter Setup and Adjustment 55 Consistent seed population

Seed Firmer Adjustments (Option) 61 Seed-soil contact

Press Wheel Adjustment 62 Effective soil coverage Monitor Adjustments PM

) 43 Consistent seed ﬂow and disk singulation

Refer to Seed Monitor manual

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

b. PM: DICKEY-john

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Setting Material Rates

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

1. monitor setup

2. seed disk selection,

3. drive speed Range sprockets,

4. Transmission sprockets,

5. inlet shutters

6. meter pressurization,

7. checking seeding rate. All rate adjustments are performed at the left end of the

planter. There are no adjustments at the ground drive assembly.

Planting Rate Details

1. Rate: Monitor conﬁguration:

The seed monitor must be set up with the

• correct row count,

• correct row spacing,

• speed calibration and;

• expected population limits, in order to have accurately rate reports and useful alarms.

See the Seed and Fertilizer Rate manual (401-651B) and the DICKEY-john® Planter Monitor operator (PM) manual.

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

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

2. Rate: Disk Selection:

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

See “Air-Pro® Meter Disk Installation” on page 57. If any rows are unused, install special blank disks. See

“Row Unit Shut-Off” on page 58.

Figure 27

Monitor Setup Screen

Figure 28

Air-Pro® Seed Disks

29978

29594

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3. Rate: Range Sprockets

Range sprockets provide coarse control of seed rate.

Refer to Figure 29 and Figure 30

All Seed Rate charts specify a DRIVING and DRIVEN sprocket combination for the Range. Crops with more

than one range are noted as “LOW RANGE” or “HIGH RANGE” at the top of the chart.

DRIVING

To change Range: a. Loosen the bolt securing the idler plate .

DRIVEN Disengage the idler. Remove the chain.

b. Remove pins from shaft ends at DRIVING and

DRIVEN sprockets, as well as at storage shaft at

left end of frame.

c. Exchange sprockets so that new DRIVING and

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

d. Remount chain (see page 82). Re-engage idlers for

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

Figure 29

Range Sprockets

31030

4. Rate: Transmission Sprockets

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

Refer to Figure 30

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

To change Transmission: a. Loosen the bolt securing the idler plate .

DRIVING

Disengage the idler. Remove the chain.

b. Remove pins from shaft ends at DRIVING and

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

DRIVEN

c. Exchange sprockets so that new DRIVING and

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

d. Remount chain (see page 82). Re-engage idlers for

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

Figure 30

Transmission Sprockets

31030

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5. Rate: Seed Inlet Shutter

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

Refer to Figure 31

One of the factors that affects seed pickup at the disk is having an optimal seed pool (page 56). The depth of the seed pool is controlled by the seed inlet shutter .

Each Seed Rate chart speciﬁes a suggested initial shutter setting. See “Seed Inlet Shutter Adjustment”on page 55 for setting details, and further adjustment.

At unused rows, set the shutter to zero/closed to prevent loss of meter pressurization air. Install a blank disk. See

Figure 31

Seed Inlet Shutter: Setting III

29607

“Row Unit Shut-Off” on page 58.

6. Rate: Meter Pressurization

Refer to Figure 32 (which depicts a typical reading for some densities of corn)

A major factor that affects seed pickup at the disk is optimal meter pressurization. Fan air holds the seed in the disk pockets until they pass the drop brush (page 32).

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

Meter pressure is set by a combination of tractor circuit lever and fan butterﬂy valve (page 31). See “Air System

Operation” on page 27.

7. Rate: Checking

Although the seed monitor reports a computed

Figure 32

Meter Pressure Gauge

29842

population based on seeds sensed, only an actual furrow check provides certainty about the actual seeding rate. See the Seed and Fertilizer Rate manual.

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Marker Adjustments (Option)

Marker Disk Adjustment

Sharp Object Hazard:

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

Refer to Figure 33

1. To change angle of cut, and the width of the mark,

loosen For a wider mark , increase the angle of the

marker with respect to the tube . For a narrower mark , reduce the angle.

Note: Do not set a marker angle wider than needed to

2. Tighten bolts .

Note: Direction of travel tendstodrivethe disk angle to

Refer to Figure 34

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

Current markers are equipped with an additional marker disk adjust mount which gives the marker added capability of up/down direction of movement where previously it only performed side to side movement. Additionally, the markers are able to make a wider mark in the ﬁeld.

⁄2inch bolts holding the disk assembly.

make a useful mark. Excess angle increases wear on all marker components.

Wide. If bolts are not tight enough, or loosen over time, disk slips into the Wide mark conﬁguration.

Sharp Overhead Object and Pinch/Crush Hazards:

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

Figure 33

Marker Disk Angle

11757

Figure 34

Marker Disk Angle (S/N+)

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Fan and Adjustment

1. These steps presume that correct seed disks are installed (per Seed Rate Manual), and the seed inlet shutters are set for the seed (page 55).

2. With fan off, check meter pressurization reported by the Magnehelic

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

4. Put tractor in Park and set brakes. Set tractor engine speed to typical ﬁeld rpm. Lift planter.

5. Startthe fan. Gradually increase fan speed using the tractor’s hydraulic ﬂow control for the circuit. Using hydraulicﬂow and/or the butterﬂy valve,adjust meter pressurization to the developed or suggested value from step 3.

6. Rotate ground drive wheel to ﬁll meters. Meters are ﬁlled when seed begins emerging below two or more openers. With fan running,put the tractor in Park and set the brakes. Walk behind the wings, remove several rain covers, and check for seed in meters by looking through the clear disks.

7. Re-check meter pressurization. With meters and disks ﬁlled, air loss through empty disk pockets is reduced, and meter pressurization can change.

8. Begin planting. Troubleshoot any obvious problems or optional seed monitor alarms.

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

If the reported seed monitor population varies from your intentions by a signiﬁcant amount, it is imperative to perform a furrow check.

For serious rate variances, for which the source of the problem and the solution are not quickly determined, see “Population Troubleshooting Charts” on page 67.

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

®a

gauge. Re-zero as needed.

Magnehelic® Gauge

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

Port ID for Troubleshooting:

Over-pressure relief port (with plug in place)

Low-pressure port (breather/atmospheric pressure)

High-pressure port (from manifold chamber)

Small seeds, such as Milo, may be under-reported by the seed monitor. 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”

Figure 35

29842

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

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10. Resume planting. A small varyingpopulation deviationbetween rows is

normal. If a row is consistently running lower or higher than the other rows, it could indicate a meter or seed sensor problem that needs attention. “Population Troubleshooting Charts” on page 67.

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

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

13. Doubles: If all else is correct, and the overall average population is runninghigh (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.

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) beforeadjusting meter pressurization to reduce apparent skips.

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

Fine-Tuning Meter Pressurization

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

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

15. Adjust the fan speed down, in small steps, waiting 5-10 seconds between adjustments, until skips occur (actual population begins falling below target). Note the pressure at which skips begin.

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

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

18. Adjust meter pressurization to a value halfway between the limits established at step 15 and step 17. This is the ideal valueforyourcrop,disk and population, providing equal margin against skips and doubles. Record this value for future use.

Alternate Skip/Double Check

Small seeds, particularlyMilo, 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 leaveengine at ﬁeld rpm and

fan running.

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

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

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

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

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Gauge Wheel Adjustments

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

Refer to Figure 36

There are two adjustments for this at the gauge wheels.

• Gauge wheel yoke spring length : This provides a variable height reduction of up to

2.2 inch (5.6 cm).

• Axle hole change : This provides a 2 inch (5.1 cm) height reduction.

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

Yoke Spring Adjustment

Refer to Figure 37

Check the length of all springs before adjusting. The maximum (and factory set) spring length is:

3.0 inch (7.6 cm)

The minimum spring length is:

23⁄8inch (6.0 cm)

Each1⁄8inch of spring compression raises the wheel by approximately 0.44 inch (3.5 mm per mm).

To adjust the spring length:

1. Raise the planter until the gauge wheels are slightly

off the ground. Place blocks or jack stands under the frame for safety.

Note: If there is weight on the wheels, the springs may

have additional compression and may not be at a length you can usefully measure.

2. Loosen the jam nut .

3. Rotate the adjuster nut to set the new spring

length.

4. Tighten the jam nut.

Wheel Axle Adjustment

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

1. Raise the planter until the gauge wheels are slightly

off the ground. Place blocks or jack stands under the frame for safety.

2. Remove bolts , located in lower holes, securing

transport ground tire assembly to unit.

3. Move wheel assembly and secure assembly to upper

hole using previously removed bolt.

Gauge Wheel Height

Gauge Wheel Spring Length

Figure 36

Figure 37

31054

31053

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25AP Series Row Unit Adjustments

Refer to Figure 38 (which depicts a row unit populated with most optional accessories supported for use with the YP425A3P/625A3P/825A3P Air Planter)

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

1. Lock-Up Pin Storage Hole (Hole Standard) See “Row Unit Shut-Off” on page 58.

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 47.

3. Meter Pressurization Air Inlet (Standard) Pressure-regulated air enters the meter here and holds seed in the disk pockets. See “Fan and Adjustment” on page 43.

4. Seed Delivery Hose Inlet (Standard) When the hopper slide gate (not shown) is open, gravity carries the seed into the meter at the shutter . The hose is easily removedforinspection. There are no adjustments.

5. Air-Pro See “Air-Pro® Meter Disk Installation” on page 57.

6. Seed Inlet Shutter (Standard) This controls the levelof 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 55.

7. Side Gauge Wheel Depth (Standard) The T-handle sets planting depth by controlling the height of the side gauge wheels relative to the opener discs. See “Side Gauge Wheel Adjustment” on page 53.

8. Press Wheel Force, Angle, Stagger (Standard) The press wheels close the furrow, gently pressing the soil over the seed to ensure good seed to soil contact for even emergence. See “Press Wheel Adjustment” on page 62.

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 58.

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 49.

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 “UMC Coulter Adjustments” on page 50.

12. Opener Discs (Standard) Row-unit double disc openers create the seedbed furrow. They have adjustments for angle and spacing. See “Row-Unit Opener Disk Adjustments” on page 52.

13. Seed Tube with Sensor (Standard) Requires no adjustment.

14. Scrapers (Optional, not shown) Inside scrapers require no adjustment. For gauge wheel scrapers, see “Adjusting Gauge Wheel Scrapers” on page 54.

15. Seed Firmers (Seed Flap Standard, not shown) An optional seed ﬁrmer (Keeton shown) minimizes seed bounce and improves soil contact. It may also deliver fertilizer. See “Seed Firmer Adjustments” on page 61.

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

Equipment Damage Risk:

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

25AP Series Row Unit

Figure 38

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Row Unit Down Pressure

Refer to Figure 39

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 40

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.

Inspect Furrow Here

Figure 39

Checking Furrow

Light or no side gauge wheel tracks

Gauge wheels compress loose soil only

Insufﬁcient down-force Increase down-force

Ideal No adjustment required

{

29983

Adjusting Down-Force

Refer to Figure 41

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

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

Side gauge wheels making deep tracks

Assessing Down-force

25AP Series Row Unit Springs

Down-force too high Reduce down-force

Figure 40

Figure 41

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An adjuster cam sets down pressure individually for

each row unit. This is useful for penetrating hard soil and planting in tire tracks. For best results always adjust tractor tires so they are not ahead of 30 inch rows.

Refer to Figure 43

Cam Notch Pounds Kilograms

zero (out of notch) Lock-Up & Maintenance

one 305 140 two 330 150

three 365 165

four 425 195

five 485 220

six 545 250 tip Do Not Use

Values are down force with hoppers empty 29958

25AP Series Row Unit

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

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

Refer to Figure 42 (shown at cam setting 2),

Figure 43 and Figure 44

To adjust down pressure, use a 11⁄8inch (29 mm) open end wrench or the tool stored at the left end of the

Row Unit Minimum Cam (at 1)

planter.

1. Raise the planter. Although this adjustment can be made with the planter lowered, the springs will be in tension, and will require more effort. The extra force required may also damage tools.

2. Install lift cylinder locks.

3. Put tractor in Park and shut it off.

4. Position wrench on the ﬁxed nut near or slightly

forward of vertical.

5. Pull upper spring link back.

6. Move the adjustment cam to the new setting on the spring adjust bar .

Note: Do not set all rows higher than notch four. Using

high settings across all rows causes uneven planting. Individual rows may be set higher if running in tire tracks. On twin-row conﬁgurations,

Row Unit Maximum Cam (at 6)

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

Figure 42

Spring Adjustment

Figure 43

Figure 44

31034

27065 bottom

27065

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Unit-Mount Cleaner Adjustments

Refer to Figure 45 and Figure 46

Optional Martin row cleaners are unit-mounted, using: UMRC: Unit-Mount Row Cleaner (stand-alone), or UMC-RC: Unit-Mount Coulter RC (on coulter bracket, with or without a coulter disk present).

There are two adjustments:

1. Wheel placement (forward or aft mounting hole, for more or less aggressive cleaning), and

2. Wheel height, adjusted by a stop. Cleaner arms ﬂoat. The stop only sets the lowest position.

In UMRC mount, a pinned cross-tube on the mount adjusts the depth. In UMC-RC (coulter) mount, a sliding down-stop block adjusts how close to the ground the row cleaners operate.

The row cleaner needs to be adjusted for your conditions, crop changes, and as coulters and openers wear.Ideally, cleaners contact only the trash, and do not disturb the soil. If allowed to “dig”, row cleaners can reduce seed coverage.

Suggested initial depth is tine tips at ground level. Make the adjustment with the planter raised. Install

lift-assist cylinder locks.Also check bolt tightness prior to each planting session, to avoid down-stop slippage.

To adjust the row cleaner:

1. Determine the height adjustment required. Measure from the lowest tine to the ground. Determine the desired new measurement.

2. Support most or all of the weight of the arm to preventinjuryand ease the adjustment. Loosen bolts

5 2

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 Object 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 45

UMRC: Cleaner Adjust

Figure 46

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UMC Coulter Adjustments

Note: Coulters are not factory-installed. Checkalignment

and depth prior to ﬁrst use.

UMC Coulter Depth Adjustment

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 47 and Figure 48

Raise planter and install cylinder locks before working on coulters. Row unit may be fully lowered or locked up. Do not attempt to move blade when the current or new position causes it to contact the ground during the adjustment. Be careful around the front end of row units. Row cleaner tines and coulter blades may be sharp.

To adjust coulter depth:

1. Determine the present opener and coulter depths.

2. Note which bracket hole the coulter is presently using.

3. Determine which new hole will position the coulter closer to the1⁄4inch-above depth. See the table below.

4. Remove the5⁄8-11 × 4 inch bolt, lock washer and nut

( in Figure 47).

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

Figure 47

25 Series Unit-Mounted Coulter

29124

Hole

Number

Depth of (new) coulter blade

relative to (new) opener blades

1 inch (25 mm) above

⁄8inch (16 mm) above

⁄4inch (6 mm) above

⁄8inch (9.5 mm) below

⁄4inch (19 mm) below

Figure 48

Coulter Blade Mounting Holes

29125

6. Re-adjust row cleaners, if installed.

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

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Coulter Row Alignment

Refer to Figure 49

For unit-mounted coulters, the ideal alignment is for the blade to open a furrow directly ahead of the opener discs.

As a check on coarse alignment, sight along the coulter blade center-line , the gap between the opener blades , and the center-line between the press wheels . If they are clearly out of alignment, either the

coulter or the press wheels (or both) may be in need of adjustment.

The exacting test of correct alignment is ﬁeld results.

Operate the planter on some test ground (no seed required), and verify that the opener blades are in the groove opened by the coulter, and that the press wheels are centered over the furrow. See “Press Wheel

Adjustment” on page 62 for press wheel alignment.

Refer to Figure 50

To adjust coulter alignment, loosen the four bolts that

attach its bracket to the row unit. The holes on the row unit are slotted, side-to-side, and allow the coulter bracket sideways and rotational adjustment.

Keep the coulter blade vertical while adjusting. If the blade cannot be brought into alignment, check that

the blade spindle itself is using the same hole location on each side of the bracket.

Figure 49

25 Series Coulter Alignment

Figure 50

25 Series Coulter Mount

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Row-Unit Opener Disk Adjustments

25 Series openers have three adjustments:

1. planting/seed depth

2. opener disc to disc clearance

3. gauge wheel/opener disk clearance (page 53)

Setting Planting Depth

Refer to Figure 51

The “T” handle sets planting depth by limiting the how high the side depth gauge wheels ride relative to the opener disks. The position of the seed tube itself is ﬁxed relative to the disks, and is not adjusted.

Toadjust seed depth, pull the “T” handle up and back, move it forwardor 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 52 and Figure 53

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

The ideal spacing causes the blades to be in contact for about one inch . If you insert two pieces of paper between the blades, they should slide to within zero (touching) to 1.5 inch (3.8 cm) of each other. If zero, the gap between the blades should not be signiﬁcantly greater than the thickness of two sheets of paper.

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

Adjusting Disc Contact

1. Raise the planter and install lift cylinder locks.

2. Remove the side gauge wheels on the row unit in need of adjustment.

3. Remove the bolt retaining the opener disc on one side. Carefully remove the disc. Do not lose the hub components and spacer washers , .

4. To reduce the spacing between the discs (the normal case), move one spacer washer from the inside to the outside of the disc.

5. Re-assemble and check disk contact.

6 7

8 9

Figure 51

Opener Adjustments

Figure 52

Opener Disc Contact Region

29983

26127

Figure 53

Opener Disc Spacers

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Side Gauge Wheel Adjustment

Refer to Figure 54 and Figure 55

Disc-to-wheel angle and clearance ideally has the wheel just touching the disk when the wheel is raised to planting depth (is up against the stop set by the “T” handle. The goal is to have both disks and wheels turn freely, but keep soil and trash from getting between them.

These two adjustments interact with each other. Changing one requires at least checking the other.

In addition to changing the disk angle due to changing depth or new ﬁeld conditions, these two settings may need attention over time as the disk and wheels wear from normal use. This adjustment will also need to be made if any opener components are replaced.

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

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

Note: Wheels should be out far enough so disks and

wheels turn freely.

Refer to Figure 57 on page 54

To adjust side gauge wheels:

1. Raise the planter and install lift cylinder locks.

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

3. Loosen pivot bolt Turn hex adjuster soindicator

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 disk. Tighten hex-head bolt to clamp arm around bushing and shank.

Refer to Figure 56

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

• If wheel does not contact disk at bottom to area where

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

2 3

Side Gauge Wheel

Opener Disks

Incorrect

Correct

Figure 54

Disk/Gauge Wheel Alignment

Contact Within this Area

Figure 55

Opener-Gauge Wheel Contact

Figure 56

Checking Wheel/Disc Contact

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• If wheel does not fall freely, loosen hex-head bolt

and slide wheel armout just until wheel and arm move freely. Retighten hex-head bolt according to grade:

⁄2inch Grade 5 bolt on 25 series:

75 foot-pounds (102 N-m).

⁄2inch Grade 8 bolt on 25 series:

110 foot-pounds (149 N-m).

Note: Use “Torque Values Chart”on page 102 for

reference.

6. Keep turning hex adjuster and moving wheel arm until the wheel is adjusted properly. When satisﬁed, tighten pivot bolt to 110 foot-pounds (149 N-m).

Adjusting Gauge Wheel Scrapers

Refer to Figure 58

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 8

touches tire.

3. Slide scraper away from wheel leaving a

⁄8inch (3 mm) gap at .

6 8

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 7

constant.

6. Tighten nut .

Starting Point

Disk/Gauge Wheel Adjustment

Figure 57

Figure 58

Gauge Wheel Scraper

22524 22525

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Seed Meter Setup and Adjustment

There are adjustments forseed 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 59

To remove the rain cover, peel the ﬂexible snap latches,

1 2

at top and rear , awayfrom 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 60 (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.

Setting Setting Typically Used For

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

| (1)

|| (2)

||| (3) Corn, round popcorn

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

Bottom (5) Wide Open: Clean-Out

Figure 59

Rain Cover Removal

Figure 60

Seed Inlet Shutter

Small seeds, such as Milo, with little or

no treatments

Small treated seeds and edible beans

(such as Soybeans)

29606

III

||||

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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 61

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 62 and Figure 63

For medium size and larger, or heavily treated smaller seeds that ﬂow less easily, the slope runs from at or slightly above the 8:30 (o’clock) position on the housing wall, forward and down to 3-to-6 seeds deep at the base of the rear strip brush .

In general, the seeds at the base of the strip brush need to be deep enough that no air escapes there, and so that just enough seeds are present to begin populating cells.

Keep the top left/rear end of the pool below the 9:00 o’clock position (meter horizontal center-line).

Meter Re-Fill

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

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

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

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

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

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 blockageupstream, 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 61

8:30

Figure 62

8:30

Figure 63

29602

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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 worndisks. Either can cause irregular seeding. Chips and cracks accelerate brush wear.

3. Remove meter rain cover (page 55).

Refer to Figure 64 (depicting an empty meter)

4. Inspect meter (see page 77 for details).

5. Make sure clamp is aligned with seat .

1 2

Refer to Figure 65

6. With the seed pocket side facing the meter housing, place the new seed disk on the disk seat.

7. Rotate disk clamp clockwise45deg 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 forthe disk hub to be ﬂat with thefaceof the disk seatonlyontheinlet(rear) side. The disk fully seats as it ﬁrst turns.This condition eases as the brush ﬁbers receive further use.

Figure 64

Disk Removed From Meter

Figure 65

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, rotatethe drive system a few turns to ensurethat meter brushes lean in the correct direction. Correct lean improves meter performance and reduces air consumption. This step is particularly important for new brushes.

Brush seating may be accomplished with or without seed present. With the planter raised, rotate the ground drive wheel, or rotate the meter drive shaft, top forward, with a

⁄8inch (23 mm) open-end wrench.

8. Reset seed inlet shutter to setting recommended

by Seed Rate Chart, or to your own developed value.

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

10. Re-install rain cover (page 55).

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Figure 66

Disk Clamped

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Removing a Seed Disk

Refer to Figure 67

1. Remove rain cover. If seed is present, close shutter topreventmore seed from entering meter. Attach funnel (page 76) or place a tarpunder the row to collect seed.

2. Hold seed disk in meter. Rotate disk clamp counterclockwise 45° to release disk.

3. Tilting top of disk toward meter, slowly remove disk, allowing seed to collect in funnel or to control ﬂow to tarp. Open shutter to release remaining seed up to wing tube.

4. Clean seed from all brushes. Clean disk seat ( in Figure 64 page 57), so that new disks can seat fully. Inspect brushes for excess wear and damage. See “Meter Brush Maintenance” on page 77.

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 79.

6. Re-install the rain cover (page 55).

Figure 67

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 (page 59).

2. Fully close seed inlet shutter (page 59).

3. Replace seed disk with blank disk (page 59).

4. Lock up row unit to reduce wear (optional, page 59).

5. Reset marker extension (Option, page 114).

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

Note: Meter drive is not disabled on 25AP row units

during shut-off.

Figure 68

Seed Inlet Shutter Closed

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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 rear (long mount) rows.

On single-row planters with mid-length mounts, any rows may be locked up.

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

2. Close Seed Shutter

Refer to Figure 68 on page 58

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.

Figure 69

29610

Shutter Closed, Blank Disk Installed

The shutter also stops seed ﬂow from a row as soon as the meter is empty. Bulk seed ﬂow to the row falls to nil as soon as the seed backs up to the air release vent at the top of the meter.

3. Install Blank Disk

Refer to Figure 69

Clean out meter. See “Meter Clean-Out” on page 76. Remove seed disk and install blank disk. See “Air-Pro

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.

Meter Disk Installation” on page 57.

Blank disks (partnumber 817-841C) are essential in row shut-off,both to maintain consistent meterback-pressure to meter pressurization and to prevent wear on seed disks and minimize wear on brushes.

Blank disks are engineered to simulate a seed disk with seed in all pockets. Blanks are particularly important on the rows with sensor lines to the pressure chamber.

4. Lock-Up Row

Alternate twin-row units (the rear units) can be pinned in

the up position to accommodate single-row spacing.

Refer to Figure 70

The lock-up pins are located in a storage hole in

1 2

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.

Figure 70

25AP Row Unit Lock-Up Pin

25269 29983

Note: Lock-up pins are provided for every other row of

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

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.

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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 48.

4. Raise the row unit high enough that the hole for the pin is above the lower parallel arm. This can be done in several ways, including: a. use a hoist at the rear of the shank b. use a jack under the shank extension

Crushing Hazard:

Use a jack or hoist. Raising a row unit on a block by lowering the planter is risky. The potential for hydraulic failure creates a safety hazard. Full lowering can damage components.

Refer to Figure 71

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

Figure 71

25AP Row Unit Locked Up

29756

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 occurs as soon as planting begins.

Sprocket Indexing (Stagger)

28420

If you are planting:

• twin-row crops,

• at seed interval spacings above 61⁄2inches (16.5 cm),

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

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

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 61

Seed Firmer Adjustments

Series 25 row units include a standard seed ﬂap, and accept one of two optional seed ﬁrmers (which may be included in your selected opener bundle).

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

Keeton Seed Firmer Adjustment

The optional Keeton Seed Firmer is an engineered polymer shape that slides down the seed trench. It traps seeds as they exit the seed tube and ﬁrms them into the bottom of the “V”.

Refer to Figure 72

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.

Figure 72

Keeton Seed Firmer

28316

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. Toavoid problems associated with this, you can lock-up the ﬁrmers.

Refer to Figure 73 (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 untillever 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

at the arm end. Remove the tool.

Figure 73

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.

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Press Wheel Adjustment

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

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

There are three adjustments available on the press wheel assembly:

Refer to Figure 74

1. Down pressure (shown at maximum)

2. Wheel stagger (shown staggered)

3. Centering (see Figure 76 on page 63)

Press Wheel Down Pressure

Handle sets down pressure, which may need adjustment for different soil types and ﬁeld conditions.

• Relax the handle forward (in the direction of travel) for

• Pull the handle back for increased down pressure. Note: Higher press wheel down pressures reduce the

Press Wheel Stagger

The factory stagger setting has been found optimal for residue ﬂow. If your conditions appear to require even press wheels, you might try one row before re-conﬁguring the entire planter. To change the stagger:

Refer to Figure 75

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

2. Remove the bolt , nut and lock-washer for the

3. Move the spacer and wheel to the forward of

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

decreased down pressure.

down force on the main row unit shank components, such as the openers. High press wheel settings may require an increase in overall row unit down force. See page 47.

4 5 6

left press wheel .

the two mounting holes at .

7 8

Higher press wheel down pressures reduce the down force on the main row unit shank components, such as the openers. High press wheel settings may require an increase in overall row unit down force. See page 47.

Figure 74

Press Wheel Adjustments

25118

Figure 75

Press Wheel Force & Stagger

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Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 63

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 76

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

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

3. Loosen the1⁄2inch hex-head bolts and .

Note: Do not loosen thesquare-head bolts forwardof the

2 3

hex-head bolts.

4. Turn the hex head cam under the forward hex head jam bolt , and move the required amount.

5. Tighten both hex head bolts and .

If press wheel adjustments do not provide satisfactory furrow closing, your conditions may require alternate

2 3

Figure 76

Press Wheel Centering

(View from beneath opener)

25277

press wheels. A variety of wheel assemblies are available. Consult your Great Plains dealer.

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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 reportingin the cab by digging seeds. This is to verify that you are set up correctly to plant the desired population. Do not rely solely on the population reported by the optional seed monitor.

Also during start up it is common to encounter alarms and readouts on the optional seed monitor that don’t seem to make sense. It is critical to troubleshoot these alarms not only to make sure the planter drive is set properly to hit the target population, but also to ﬁx incorrect entries in the monitor setup to eliminate nuisance alarms.

Before entering the troubleshooting charts to remedy a monitor or population problem, it is helpful to use the following ﬂowchart to get a handle on what may be wrong. The basis for ﬁnding what is wrong comes from knowing exactly what the planter is actually doing in the soil. Always dig or observe seed on the ground when checking populations.

1. Is the spacing on the ground correct?

2. Is the population reported by the optional seed monitor1⁄2 the actual or is the reportedpopulation too high by a factor of 2?

3. Is the population reported by the optional seed monitor 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 optional seed monitor console.

The system can also be off by a large factor if incorrect range sprockets

are installed. Check seed rate charts against range and transmission

sprockets on the planter. No: Check seed rate charts against transmission sprockets selected. See

“Population Too Low”or“Population TooHigh” in the troubleshooting

charts. Yes: If slightly under, see “Population Too Low” if slightly over, see

“Population Too High”.

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”.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 65

Seed Pool Troubleshooting

Figure 77

Rear Cross-Section of Air-Pro® Meter in Normal and Row-Failed Conditions

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

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

Actions: Actions: Actions: Actions:

No action required. Continue Planting.

A bridge at the shutter is blocking ﬂow.

Causes may include:

• oversize seed

• shutter setting too low

• oversize matter in seed

• excessive or sticky seed treatment

1. If shutter was at

suggested opening, increase one notch.

2. Check seed pool for

foreign matter.

3. Resume planting.

Oversizematter in seed has caused a bridge atthe top of the inlet.

Causes may include:

• oversize seed

• oversize matter in seed

• excessive or sticky seed treatment

1. Close shutter.

2. Tap on hose/tube

junction.

3. Check seed pool for

foreign matter.

4. Resume planting.

No seed arriving from box. Causes may include:

• seed run-out

• slide gate closed If hopper is empty, air

back-ﬂow is also occurring, which can reduce meter pressurization at other rows

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

2. If row is inactive, close shutter.

3. Resume planting.

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Magnehelic® Gauge Troubleshooting

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

Problem Cause Solution

Non-zero with fan off

Gauge reading lower than sensor

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

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

Zero drift Re-zero per

instructions below

Relief port plug missing/damaged

Breather line blocked or kinked

Leak in sensing line

Gauge damaged Check for loose

Replace plug

Clear breather line

Check line to chamber

cover, damaged O-ring

Figure 78

Magnehelic® Gauge

Port ID for Troubleshooting:

Over-pressure relief port (with plug in place)

Low-pressure port (breather/atmospheric pressure)

High-pressure port (from manifold chamber)

Alternate high/low ports are plugged.

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

29842

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 67

Population Troubleshooting Charts

Population Too Low

Problem Cause Solution

Overall Low Population

Incorrect seed rate Using Seed Rate Manual, check:

• seed disk selection,

• Range/Transmission sprocket setup, and

• tire size and inﬂation.

Empty pockets on disk (skips) due to insufﬁcient air pressure.

Empty pockets on disk (skips) due to sticky seed treatments not allowing seed to rapidly ﬁll the pockets.

Empty pockets on disk (skips) due to rough ﬁeld conditions causing seeds to fall from the disks.

Empty pockets on disk (skips) due to seed pool too low, and seeds are not ﬁlling every pocket on the disk.

Empty pockets on disk (skips) due to disk speed too high, and pockets are not ﬁlling.

Empty pockets on disk (skips) due to singulation (4 tufted) brush too aggressive.

Empty pockets on disk (skips) due to seed too big for pocket.

Seeds are not falling from disk, and get carried past drop zone. Static electricity can cause small, lightweight seeds to cling to the pocket and not fall out.

Air pressure too low,as conﬁrmed by gauge. Increase fan speed or reduce butterﬂy valve setting. Air pressure too low, but gauge reading is

within range or reading high.

Excess ﬁeld speed Plant within speed rangesrecommended in Seed Rate

Incorrect speed sensor constant. Perform speed calibration per seed monitor manual. Incorrect magnetic speed sensor gap. Check and adjust (page 79). (Option) Incorrect radar speed sensor angle. With planter lowered, check radar speed sensor angle

Methodically increase the meter pressurization. See “Fan and Adjustment” on page 43.

Increase seed lubricant.

Decrease ﬁeld speed or increase the air pressure in the meter.

Open shutter one notch.

Decrease ﬁeld speed or change to a higher cell count disc.

Check for matted, stuck together ﬁbers. Wash, scrape clean, or replace as needed.

Select the correct disk for the seed size.

The graphite component of Ezee Glide Plus addresses this issue. Increase the amount of Easy Glide Plus and/or more thoroughly mix the lubricant into the seed.

• Inspect the1⁄4inch sample lines from the row units up to the sensor chamber for leaks (page 66).

• Make sure all non-planting rows have blank disks and shutters are closed (page 59).

• Re-zero the gauge with the fan off (page 66).

• Check gauge vent line for kinks, pinches or plugging (page 66).

Manual.

per DICKEY-john® recommendations.

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Population Too Low

Problem Cause Solution

Overall Low Population, cont.

Low Population, Single Row

Low or Erratic Seed Flow

Pass gaps too large Check marker extension (page 114).

For GPS, check planter size programmed. Actual ﬁeld size is different Population may be correct, and calculations are not. Seed monitor reporting excess area Readings can vary with conditions (wheel slippage,

and effective rolling radius in soft soils) and planting

patterns. Shutter opening too narrow - starving meter

of seed (low seed pool) Meter starvation due to bridging at shutter Re-adjust for shutter bridging (page 56).

Meter starvation due to blockage above inlet Clear blockage (page 56). Meter starvationdue to bridging above inlet,

caused by high levels of seed treatment Incorrect seed disk on one row Install correct seed disk. Chain skipping at row unit. Check chain, idler and sprocket condition. Skips due to low meter pressurizationat one

or several rows Skips due to skipping chain Check for worn chain, worn idlers, 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 tube plugged Raise planter, expose bottom of seed tube and clean

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

Adjust shutter to higher setting.

If seed is treated, increase seed lubricant.

Clear bridge (page 56). Increase seed lubricant.

Check shutter setting. Check for excess wear on seed

drop brush. Check for loose or leaking pressure hose.

(page 82) and failed meter bearing.

out.

Close shutters. Clean-out meters. Set fan for correct

manifold pressure. Resume planting.

Population Too High

Problem Cause Solution

Overall High Population

401-652M Table of Contents Index 2013-05-28

Incorrect seed rate Check seed rate charts Two seeds per pocket on the disk

(doubles), due to excess meter pressurization

Two seeds per pocket on the disk (doubles), due to pockets too large for the seed

The meter pressurization is too high, as conﬁrmed by gauge

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

Methodically decrease the meter pressurization. See “Fan and Adjustment” on page 43.

Select a disk with smaller pockets.

Reduce fan speed or increase butterﬂy valve setting.

Re-zero the gauge with the fan off.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 69

Population Too High

Problem Cause Solution

Overall High Population, cont.

High Population, Single Row

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

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

Incorrect speed sensor constant. Perform speed calibration per seed monitor manual. Incorrect magnetic speed sensor gap. Check and adjust (page 79). (Option) Incorrect radar speed sensor

angle. Doubles due to incorrect disk for crop or

seed size Sticky seeds: excess seed treatment Increase seed lubricant. Incorrect speed sensor constant Perform speed calibration per DICKEY-john® monitor

Overlapping passes Check marker extension (page 114).

Actual ﬁeld size is different Population may be correct, and calculations are not. Seed monitor under-reporting area Readings can vary with conditions (wheel slippage, and

Excess meter pressurization causing doubles

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

Worn meter bearing causing seed disk wobble and doubles

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

Check:

• Inspect the1⁄4inch sample lines from the row units up to the sensor chamber for leaks (page 66).

• Make sure all non-planting rows have blank disks (page 59).

• Check that rubber pressure relief plug is seated in gauge (page 66).

When troubleshooting population issues, always ﬁrst rule out seed monitor setup. Review planter conﬁguration and monitor setup.

current disks (if within range).

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

Use recommended disk for crop and seed size.

manual.

For GPS, check planter size programmed.

effective rolling radius in soft soils) and planting patterns.

Check shutter.

Replace worn brushes.

Replace meter bearing.

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Population Related

Problem Cause Solution

Overall Population Alarms

Mismatch Between Reported and Furrow Population

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

Incorrect cell count Replaceseed disks with correct disks, or reset rate for current

Improper gap on magnetic speed sensor.

Incorrect speed sensor constant Perform speed calibration per monitor manual. (Option) Incorrect radar speed

sensor angle. Seed run-out. Due to unequal

outlets per box division, and if planting across slopes, some rows will run out before others.

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

Seed tube sensor is not counting all seeds

When troubleshooting population issues, always ﬁrst rule out seed monitor setup. Reviewplanter conﬁguration and monitor setup.

disks (if within range). Check speed sensor on planter for a gap to toothed wheel of:

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

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

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

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

Run with rain covers in place to minimize ambient light intrusion. Use the population scaling factor in the seed monitor system to compensate for missed seeds. Remember to set this back to 100% for large seeds.

Clean the seed tube of graphite and dust buildup with long narrow seed tube brush. Replace sensors that malfunction.

Excessive Seed Cracking

Skips and Bare Spots After Turns

Seed too shallow or scattered on ground from a single row

Incorrect seed pocket size Use correct disk for seed. Damaged, old or dried-out seed Use new seed. Unclean seed Use clean seed. Fan was turned off at turns Leave fan running; meter pressurization must be maintained

during turns, or seed will fall out of disk pockets.

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

Bottom of seed tube damaged. Replace seed tube. Avoid setting planter straight down. Use

Row not penetrating in tire tracks. Increase down force on parallel arm springs. Opener depth too shallow. Change side depth wheel setting.

Check tractor capability against requirements (page 96). If sufﬁcient:

• Fold markers before engaging lift.

• Use a less aggressive lift rate.

• Monitor meter pressurization during end-of-pass operations.

forward motion when lowering.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 71

Population Related

Problem Cause Solution

Twin Rows were timed but became out of time.

Timing will change when a population change has been made.

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

Re-time meters from the population based timing chart.

links.

General T r oubleshooting

Problem Cause Solution

Population Alarms

ExcessSeed Remaining

Seed

Consumption

Too High

Rows Not Planted

Uneven seed spacing

See “Population Troubleshooting Charts” on page 67.

See “Population Troubleshooting Charts” on page 67. Field size different. After ruling out population problems, re-check geography. Excessive gaps between planter

passes. See “Population Troubleshooting Charts” on page 67. Field size different. After ruling out population problems, re-check geography. Excessive overlap.

Irregular shaped ﬁeld. If not detected by optional seed

monitor, check for plugged row-unit seed tube

See “Population Troubleshooting Charts” on page 67. 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 61. Row-unit discs not turning. See “Row-unit discs not turning freely” in this

Worn/rusted sprockets and/or chain idler or bearings.

Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out. Lack of proper seed lubrication on

seed.

Adjust marker, page 114.

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

Troubleshooting chart. Check and replace any worn/rustedsprockets or chain idlers.

See “Seed Lubricant” on page 90.

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General T r oubleshooting

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. Excessiveor 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 61. Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 47. 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 runlevelfrom 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 61. Failed disc bearings. Replace disc bearings. Bent or twisted row-unit frame. Replace row-unit frame. Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out. Incorrect spring handle setting See “Press Wheel Adjustment” on page 62. Insufﬁcient row unit down-force See “Row Unit Down Pressure” on page 47. Use of incorrectly shaped tire for

your conditions.

Not level front to rear. Check tongue height and top link adjustment. Wheel stagger needs adjustment for

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

See “Row Unit Down Pressure” on page 47.

See “Seed Firmer Adjustments” on page 61.

Check coulter adjustment.

Check tool bar height page 18

Clean out and check for damage.

Adjust side depth wheels page.

See “Side Gauge Wheel Adjustment” on page 53.

Wedge shaped wheels work best on narrow spacings and in wet conditions. Round edge wheels work best in wider row spacings and drier conditions.

See “Press Wheel Adjustment” on page 62.

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Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 73

General T r oubleshooting

Problem Cause Solution

Hydraulic marker functioning improperly, or not at all

Marker disk does not mark

Speed Reading Doesn’t Match Tractor

Marker/Fold switch set to Fold. CFM Switch must be set to “Marker”. Set tractor remote

circuit to Neutral or Float before operating switch.

Marker/Aux valve set to Aux On a planter with optional Auxiliary Hydraulics,selector valve

must be set to Marker for markers to function. Set tractor remote circuit to Neutral or Float before changing valve.

Air or oil leaks in hose ﬁttings or connections.

Low tractor hydraulic oil level. Check tractor hydraulic oil level. Loose or missing bolts or fasteners. Check all bolts and fasteners. Needle valve(s) plugged. Open needle valves, cycle markers slowly and reset needle

Disk angle too straight for soil conditions

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

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

valves, refer to page 113. Reverse marker disk to pull or throw dirt.

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

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Maintenance and Lubrication

Maintenance

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

Alwaysturnoff and removethe tractor key before making any adjustments or performing any maintenance.

Crushing Hazard:

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

High Pressure Fluid Hazard:

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

1. After using your planter for several hours, check all bolts to be sure they are tight.

2. Remove excess slack from chains. Clean and use chain lube on all roller chains as needed.

3. Maintain proper air pressure in planter tires.

4. Keep disk scrapers properly adjusted.

5. Clean planter on a regular basis. Regular and thorough cleaning will lengthen equipment life and reduce maintenance and repair.

6. Lubricate areas listed under “Lubrication” on page 85.

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 75

Material Clean-Out

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

Refer to Figure 79

The planter includes an 817-811Ca 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

clampedhose,and are not intended to beroutinely 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 21⁄4inch

• a hacksawb with ﬁne-toothed blade Trim the sump from the funnel. Slide the hose fully

onto the funnel tip. Secure with clamp (do not

4 2

-over-tighten clamp, the funnel wall be crushed). The choice of complete system clean-out process

depends on whether you are using the 817-811C as a container or funnel.

Seed Clean-Out (Container)

1. Scoop or vacuum as muchseed as possiblefrom the top of the hoppers.

2. Perform a meter clean-out per page 76.

Seed Clean-Out (Funnel)

1. Close slide gate at hopper (slide gate only exists on models with serial number B1013R and earlier).

2. Attach funnel as for meter clean-out (page 76), with hose routed to bucket or other larger container.

3. Use slide gate to control seed ﬂow until meter, inlet and hopper are empty (slide gate only on models B1013R-).

Possible Dust and Chemical Residue and Fume Hazards:

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

Figure 79

Convert Container to Funnel

29988

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

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Meter Clean-Out

Refer to Figure 81

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

Note: The funnel does not ﬁt rows to the left of gauge

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

Note: It may be necessary to raise a twin-row planter to

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

1. Close the seed inlet shutter on the meter (page 55). This minimizes the seed volume at disk removal.

2. Remove the rain cover (page 55). The funnel cannot be snapped in place with the cover installed.

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

4. Rotate the funnel forward until the slot at lip center engages a tab on the bottom center of the meter housing.

5. Remove the seed (page 58).

6. Slowly open the seed shutter (page 55) to empty the seed up to the slide gate.

7. If seed remains in the hopper, use the slide gate to control the volume of ﬂow.

Refer to Figure 80

8. Clean seed from all brushes (shop vac recommended).

9. Inspect brushes (page 77).

10. Rotate funnel clockwise, remove and empty.

11. For imminent operations: Install next seed wheel or blank disk (page 59) for operations. Set inlet shutter for next seed (page 55).

12. For storage: Close seed inlet shutter. Leave disk out. Close Y-tube (if any).

13. Re-install rain cover (page 55).

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

Figure 80

Brush Inspection

29608

Funnel Positioned and Engaged

Alternate Meter Clean-Out

Touse 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 81

29612

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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 77

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 82

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 areworn/damaged, air pressure regulation may become unstable, or require increasing fan speed over time.

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

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

• If the seed drop brush is worn/damaged, its anti-static effect may fade, which can result in “skips” due to smaller seeds failing to release, and lower populations.

If an obvious groove is worn in the drop brush, replace it.

Figure 82

Brushes

29608

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Meter Brush Replacement

Consult the Parts manual (401-652P) for current replacement part numbers.

Refer to Figure 83

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 brushholder 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 84

4. Insert replacement strip brushes into grooves at holder bottom so that notched ends are at the bottom.

Refer to Figure 83

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 83

Brush Replacement

Figure 84

Strip Brush Notches

29719

29720

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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 79

Seed Disk Maintenance

Refer to Figure 85

When removing seed disks, inspect them for wear and damage. If there is any seed dust or treatment build-up in

the cell pockets , or along the raised wiper ridges , clean the disks and re-inspect.

Replace disks for conditions including:

• Chips at circumference . These will leak air.

• Chips at edges or in sculpted surfaces of cell pockets . These can leak air and/or adversely affect singulation.

• Cracks over 2 inch (5 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 57) in operation, replace the disk.

• Wear - if a wiper ridge is worn away, replace the disk. If the seed pockets are worn through, or the air

ports have enlarged, replace the disk.

Cleaning and Storing Seed Disks

Use warm or hot water, mild soap, and a sponge or soft brush to remove build-up.

If disks are washed, allow them to drycompletely priorto 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.

1 2

Possible Chemical Hazard:

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

Figure 85

Disk Seed Cells and Wiper

29613

Speed Sensor Gap

Refer to Figure 86

1. Raise planter (page 20). Rotate ground drive wheel

until a disk tooth is directly at sensor center-line.

2. Check that wheel teeth are on sensor center-line

side-to-side.As needed, loosen collarson either side of disk and adjust.

3. Check that center-line of sensor is pointed at

center-line of transfer shaft. As needed, loosen mounting bolts and adjust.

4. Check gap between top of sensor and toothed

wheel for a dimension of:

⁄16inch (1.6 mm)

Toadjust, loosen jam nut . Adjust base nut to set gap. Re-tighten jam nut.

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8 9

Figure 86

Speed Sensor Gap

31008

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Hydraulic Maintenance

As with any hydraulic system, contamination is the most common cause of performance problems and pre-mature wear. Make a special effort to properly clean

quick couplers prior to attaching the hoses to tractor, and never let them fall to the ground.

Bleeding Marker Hydraulics

To fold properly, the marker hydraulics must be free of air. If the markers fold in jerky, uneven motions.

As the marker cylinders are encased within the main tool bar, it is not practical to bleed them at cylinder ﬁttings. Remove air from the system by slowly cycling fold and unfold several times.

Drive-Line Shear Pin

Refer to Figure 87

The spirol pin that connects main transfer shaft

collar to the transmission shears if an excessive load is put on the shaft.

Infrequent or improper lubrication causes binding of moving parts within the planter. This binding can cause the spirol pin to shear, preventing more serious damage to other planter parts.

Machine Damage / Nuisance Shear Risks:

Do not use arbitrary spirol pins. Replace sheared pins with cotter pins of the same size. Strong pins may fail to shear, causing more serious damage elsewhere. Weaker pins are prone to nuisance shears. Refer to current Parts Manual for correct spirol pin replacement part number.

Figure 87

Transmission Shear Pin

29884

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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 81

Marker Maintenance (Option)

See also: “Initial Marker Setup (Option)” on page 113, “Marker Operation (Option) S/N-” on page 33, and “Marker Disk Adjustment” on page 42

Marker Shear Bolt Replacement

Refer to Figure 88

If a marker gets caught or hits an obstruction, it is designed to fail a shear bolt at the fold, pivot on a second bolt (not visible in Figure), and swing back.

The shear bolt is a hex head cap screw,

⁄16-18 × 11⁄2inch Grade 5, Great Plains part number

802-012C, plus a5⁄16-18 lock nut, Great Plains part number 803-011C.

Note: If an exact replacement is not immediately

available, temporarily substitute an M8 × 1.25 Class 8.8 bolt and nut.

Install a replacement shear bolt on the vertical face on the side opposite from the pivot bolt. Do not use a higher grade bolt, or marker hang-ups may result in machine damage. Do not use a lower grade bolt, or you may experience nuisance shears.

Figure 88

Marker Shear Bolt

29982

Marker Grease Seal Cap

If grease seal cap for marker-disk-hub bearings is damaged or missing, disassemble and clean hub. Repack with grease and install new seal or grease cap.

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Chain Maintenance

Inspect and lubricate chains regularly. The slack of new chains tends to increase during the ﬁrst few hours of operation due to seating.

See also “Chain Routing” on page 106.

Chain Slack

Check slack at ﬁxed idlers within the ﬁrst 8 hours of operation and tighten idlers as necessary.Check slack at spring-operated idlers seasonally.

Refer to Figure 89, which, for clarity, greatly exaggerates slack, and omits the idlers.

1. Measure the span for allowable slack: Locate the longest span of each chain (usually the span which does not run through the idlers).

2. Determine the ideal slack: Long chains (over 36 inch/91 cm): Vertical short chains:1⁄4inch per foot (2.1 cm/m) Horizontal short chains:1⁄2inch per foot (4.2 cm/m).

3. Measure the current slack : Acting at a right angle to the chain span at the center of the span, deﬂect the chain in both directions. The slack is the distance of the movement.

4. Adjust the idlers for ideal slack.

⁄4inch per foot

Chain Clips

Whenever mounting a chain, make sure the clip at the removable link is oriented to minimize snags.

Refer to Figure 90 (arrow shows chain direction)

Install clip with open end facing away from direction of chain travel (shown by gray or striped arrows in chain routing diagrams).

Figure 89

Measuring Chain Slack

Figure 90

Chain Clip Orientation

27264

26482

Meter Drive Chain

Refer to Figure 91 (which depicts planter raised)

When performing periodic lubrication, check chain condition. Replace chain if any frozen kinks are not corrected by lubrication.

When performing seasonal checks, lower planter to put chain at minimum idler spring tension.

Check that idler spring length , measured from outside of pin to outside of pin, is not shorter than:

7.0 inch (17.8 cm)

Lift spring off idler assembly . Check that idler assembly pivots freely. Re-attach spring.

Check chain clip orientation. Check chain routing at shank idler(s) (see page 109).

401-652M Table of Contents Index 2013-05-28

Figure 91

25AP Meter Drive Chain

31032

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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 83

Spreaders and Scrapers

Note: Applies to all row unit Series.

Refer to Figure 92

1. Remove side gauge wheels from arms to access row-unit disks and scrapers.

2. With the unit raised, check blade spreader for wear. Replace spreader if it is1⁄2inch (13 mm) wide or narrower. To replace, remove disk blades , drive out roll pins , and install new spreader.

3. When reinstalling disk blades, put two shims between bearing and shank on each blade. Tighten bolts.

4. Check amount ofcontact between blades, and adjust number of shims as needed. Store extra shims on outside of blade. See “Opener Disc Contact Region” on page 52.

5. Check that outside disk scrapers are formed to disk blades to help remove any mud. Bend/twist scrapers to ﬁt blades as needed. Every 200 acres of operation, check outside scrapers for adjustment and wear. Replace outside scrapers as necessary.

Row-Unit Side Wheels

Refer to Figure 93

1. Lift opener side wheel off the ground. Move tire in and out to check for end play. Check for roughness in bearing by rotating wheel. If bearings are rough, inspect and replace if necessary.

2. Side wheels are preset at the factory. Due to normal wear it may become necessaryto make adjustments so the wheel remains close to the disk. To prevent plugging, loosen clamp bolt and slide arm inward to take up gap between side wheel and disk blade. If more adjustment is needed, go to step 3.

3. Remove bolt and wheel . Remove shims from the inside of wheel and place them on the outside of wheel. Always place removed shims from the inside to the outside. When installed, wheel should turn freely and not hit the arm at the curve. Do not add any more shims than necessary.

4. Disassemble side gauge wheel arm from unit. Remove bushing from sleeve and check for wear. If necessary, replace bushing.

5. When reinstalling side gauge wheels, align tab on hex adjustment with notch in bushing. Replace bolt and tighten.

6. Adjust side gauge wheels. Referto see “Side Gauge Wheel Adjustment” on page 53.

2 3 4

6 7

Note: It is normal for the blade spreader to have some

looseness in the holder and between the blades. Some looseness is required for proper operation.

Note: You may need fewer washers under worn disks.

Figure 92: 25AP

Spreaders and Scrapers

22839

{

Figure 93

Side Gauge Wheel Shims

Sharp Object Hazard:

Be careful when working in this area. Disk edges are sharp.

21894

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Seed Flap Replacement

Refer to Figure 94

To replace a seed ﬂap , use a needle nose pliers or similar tool to grasp “T” top of ﬂap. Pull upward to pull ﬂap up out of metal bracket .

Push new seed ﬂap down through metal bracket until ﬂap snaps into place with “T” top resting on top of bracket.

1 2

Figure 94

Seed Tube Flap

31047

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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 85

Lubrication

Intervals

Multi-purpose spray lubricant

Multi-purpose grease lubricant

Multi-purpose oil lubricant

Inspection

34208

(operating hours)

at which service is required

Opener Side Wheel Bushing

On both sides of each row-unit (2 per row) Type of Lubrication: Grease

Quantity: Until grease emerges

21960

Chain: Contact Drive

As Required

1 chain Type of Lubrication: Chain Lube

Quantity = Coat thoroughly Note: Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

Chains: Meter Drive

As Required

1 chain each meter Type of Lubrication: Chain Lube

Quantity = Coat thoroughly Note: Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

29893

29616

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Chain: Range Drive

As Required

1 chain Type of Lubrication: Chain Lube

Quantity = Coat thoroughly Note: Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

29893

Chain: Transmission Drive

As Required

1 chain Type of Lubrication: Chain Lube

Quantity = Coat thoroughly Note: Lubricate chains any time there is a chance of

moisture, and when being stored at the end of the planting season.

Gauge Wheel Module Forward Pivot

4 modules per planter, one zerk per pivot; 4 total

Type of Lubrication: Grease Quantity: Until grease emerges

29884

15052

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Markers (Option)

4 zerks per marker, two markers; 8 total

Type of Lubrication: Grease Quantity: Until grease emerges

Ground Drive Wheel Hub

1 zerk at each bearing casting; 4 total

Type of Lubrication: Grease Quantity: Until grease resistance felt

Re-pack seasonally.

Row Cleaner Bearings (Option)

1 zerk each wheel, 1 or 2 wheels per row Type of lubrication: Grease

Quantity = Until resistance is felt To avoid damaging the seal, do not add grease at high

pressure.

25474

25475

29885

27342

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Gauge Wheel Hubs

Seasonal

1 zerk each spindle; 4 total

Type of Lubrication: Grease Quantity: Until resistance is felt

29883

Markers: Disk Hub

Seasonal

4 bearings; 2 races each marker Type of Lubrication: Grease

Quantity: Re-pack

16489

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Seed Lubricants

Air-Pro® Meters (all seeds)

Ezee Glide Plus Talc + Graphite Mix

821-069C bucket, 5 gallon (19 liter)

Ezee Glide Plus Lubricant

To maximize performance of Great Plains metering systems, it is imperative to use only “Ezee Glide Plus” lubricant. “Ezee Glide Plus” Talc + Graphite lubricant is mandatory for all seeds, especially treated or inoculated seed. Thorough mixing of seed and added lubricant

is required.

Recommended Usage:

For clean seeds other than milo, cotton, and sunﬂowers sprinkle1⁄4cup of Ezee Glide Plus per bushel or unit (60 ml per 35 liters) of seed.

For milo, cotton, and sunﬂowers double the application to

⁄2cup (or more) per bu.or unit (120 ml per 35 liters) of

seed. Adjust this rate as necessary so all seeds become

coated while avoiding an accumulation of lubricantin the bottom of the hopper.

For seed with excessive treatment, or for humid planting environments, increase the rate as needed for smooth meter operation.

29248

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.

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Options

Dual Sequenced Markers

A marker system includes hydraulic cylinder, marker arm and mount for left and right side, plus an automatic sequence valve that controls which side activates, and at what speed. The marker system requires one tractor remote.

The system is factory installed, but ordered as a separate line item.

Description

4-30 PT PLTR FLAT FOLD MKR 113-837A 6-30 PT PLTR FLAT FOLD MKR 113-838A 8-30 PT PLTR FLAT FOLD MKR 113-839A

See “Marker Operation (Option) S/N-” on page 33.

Order

Number

Seed Lubricant

Description

Ezee Glide Plus Talc + Graphite

Mix (5 gallon / 18.9 liter container)

See “Loading Seed (1 bu.hoppers)” on page 24. See “Seed Lubricants” on page 89.

Order

Number

821-069C

Clean-Out Container

29872

29248

One container is provided with the planter. Order the following part for additional or replacement containers.

Description

AIR METER CLEAN OUT FUNNEL 817-811C

See “Funnel Conversion” on page 75. See “Meter Clean-Out” on page 76.

401-652M Table of Contents Index 2013-05-28

Order

Number

29992

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Great Plains Manufacturing, Inc. Table of Contents Index Options 91

Row-Mounted Accessories

Lock-Up Pins

If rows are shut off, you can reduce unnecessary wear on the unused row units by locking them up. Twin-row planters include, as standard, one lock-pin per rear row. For replacement pins, or for other planter models, order one per row unit locked-up.

Description Part Number

PIN HITCH 1 X 6 W/HAIRPIN 805-033C

See “Row Unit Shut-Off” on page 58.

Rigid Row Cleaners

Optional Martin row cleaners are unit-mounted, either:

• “stand-alone”, using a unit-mount assembly ( ), or;

• added to a UMC coulter disk mounting bracket ( ,

with or without a disk).

Twin-Row planters and narrow row spacings support only single-wheel unit-mounted row cleaners, in alternating left/right cleaner hub orientations.

Coulter-mounted (requires coulter):

Coulter-Mount RC Kits Part Number

Single, 2 left, 2 right (4 row) 207-223A

Single, 4 left, 4 right (8 row, 4 twin) 207-205A

Single, 3 left, 3 right (6 row) 207-227A Single, 6 left, 6 right (12 row, 6 twin) 207-228A Single, 8 left, 8 right (16 row, 8 twin) 207-212A

Double, 4 row 207-225A Double, 6 row 207-231A Double, 8 row 207-233A

27226

27345

Stand-alone (includes mount):

Stand-Alone RC Kits Order Number

Single, 2 left, 2 right (4 row) 207-222A

Single, 4 left, 4 right (8 row, 4 twin) 207-224A

Single, 3 left, 3 right (6 row) 207-229A

Single, 6 left, 6 right (12 row, 6 twin) 207-230A

Double, 4 row 207-226A Double, 6 row 207-232A Double, 8 row 207-234A

For operations, see: “Unit-Mount Cleaner Adjustments” on page 49.

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207-21xK and 207-09xS kits do not include a manual.

Individual Row Cleaners Part Number

UMRC Dual Wheel 207-213K

UMRC LH Single Wheel 207-215K

UMRC RH Single Wheel 207-216K

UMC-RC Dual Wheel 207-098S UMC-RC LH Single Wheel 207-092S UMC-RC RH Single Wheel 207-093S

RC Install/Use/Parts Manual 204-085M-A

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Unit-Mounted Disk Coulters

Optional unit-mount disk coulters are available with 15 inch ﬂuted or 15 inch turbo blades. For complete coulters, with unit mount and blade the selection includes:

Description Part Number

4 mounts, 15 inch ﬂuted (4 row) 204-171A

4 mounts, 15 inch turbo (4 row) 204-173A

6 mounts, 15 inch ﬂuted (6 row) 204-175A

6 mounts, 15 inch turbo (6 row) 204-176A

8 mounts, 15 inch ﬂuted (8 row, 4

twin)

8 mounts, 15 inch turbo (8 row, 4

twin)

204-172A

204-174A

12 mounts, 15 inch ﬂuted (6 twin) 204-552A

12 mounts, 15 inch turbo (8 twin) 204-553A

16 mounts, 15 inch ﬂuted (8 twin) 204-551A

16 mounts, 15 inch turbo (8 twin) 204-554A

Coulter Blades

Replacement/alternate blades include (one per row):

29124

25299

15 inch Turbo Packages Part Number

Fluted, 15 inch (50 ﬂutes) 820-331C

Turbo, 15 inch (20 ﬂutes) 820-327C

Straight, 14 inch 820-259C

See “UMC Coulter Adjustments” on page 50.

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Seed Meter Disks

Air-Pro® meters accept a variety of seed disks, plus a special blank disk for row shut-off. Choices include:

Meter Disks Part No.

Corn, 024 Cell (Large, Flat) 817-836C Corn, 024 Cell (Large, Round) 817-794C Corn, 024 Cell (Small, Round or Flat) 817-795C Corn, 040 Cell (Large, Flat) 817-838C Corn, 040 Cell (Large, Round 817-796C Corn, 040 Cell (Small, Round or Flat) 817-797C Cotton, 060 Cell 817-857C Milo, 065 Cell 817-849C Milo, 130 Cell 817-800C Soybeans, 084 Cell 817-798C Soybeans, 168 Cell 403-551D Sunﬂower, 024 Cell 817-851C Volumetric No. 1, 84 Cell 817-867C

Meter Disk

Blank, 000 Cell 817-841C

See “Seed Meter Setup and Adjustment” on page 55.

29594

Part

Number

Inside Disk Scrapers

When planting in moist or sticky soils, these scrapers are useful in preventing build-up that might otherwise impair opener disc performance.

Description

Inside Scraper 122-278S

This scraper cannot be used with Seed-Lok® seed ﬁrmers installed. It is compatible with seed ﬂaps and optional Keeton seed ﬁrmers.

See page 116 for scraper installation. The spring-loaded carbide scraper requires no adjustment.

Part

Number

29185

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Gauge Wheel Scrapers

When planting in moist or sticky soils, these scrapers are useful in preventing build-up that might otherwise result in shallow planting.

Order one part per wheel (2 per opener).

Wheel Scrapers Part Number

21⁄2inch (6.4 cm) scraper 404-194D

3 inch (7.6 cm) scraper 404-195D

4 inch (10.2 cm) scraper 404-196D

The scrapers mount on the bottom rear of the depth wheel arm, using existing hardware. The slot in the scraper is long enough to clear the lower grease zerk, and allow adjustment as wheel and scraper wear.

For operations, see: “Adjusting Gauge Wheel Scrapers” on page 54.

25298

Seed Firmers

The base YP425A3P, YP625A3P & YP825A3P planter requires a choice of row unit bundles which include one of three ﬁrmers: seed ﬂap, Keeton®, or Seed-Lok®. Only one type of seed ﬁrmer may be installed at the same time. Order one per row.

Seed-Lok® Seed Firmer

Description Part Number

25 Series Seed-Lok® kit

(per opener)

For operations, see: “Seed Firmer Adjustments” on page 61.

Keeton® Seed Firmer

The Keeton® seed ﬁrmer supports low-rate fertilizer delivery. For this use, a user-provisioned liquid fertilizer system must be installed.

404-093K

Description Part Number

Keeton seed ﬁrmer (per opener) 890-840C

For operations, see: “Seed Firmer Adjustments” on page 61.

25293

28316

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Row Unit Press Wheels

The base Yield Pro planter includes a choice of press wheels. Additional wheels are available, and all may be ﬁeld-installed.

This manual does not list kit part numbers as the available wheels are often region-speciﬁc. Consult your Great Plains dealer.

For operations, see: “Press Wheel Adjustment” on page 62.

29331

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96 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

Min. Tractor HP Req.¹

Hydraulic Circuits Req.

Weight (empty, base)²

Weight (maximum, full)³

Appendix A - Reference Information

Speciﬁcations and Capacities

YP425A3P Single-Row Data

YP425A3P YP425A3P YP425A3P YP425A3P YP425A3P

Model -0470 -0430 -0436 -0438 -0440 Row Count Row Spacing Width, no Markers Width, with Markers Span (between end rows) Swath (Channel Width) Seed Monitor Seed Capacity (B1014R+) Seed Capacity (B1013R-) Length Working Height Transport Height Transport Clearance

Hitch

Gauge Wheel Tire Size Opener Down Pressure Opener Travel (Up - Down) Opener Depth Range

1. Power requirements vary significantly with conditions and practices.

2. No fertilizer, markers, coulters, row cleaners or materials loaded.

3. Weight can vary by thousands of pounds depending on options installed. See Transport topic. * Planter functions not monitored include: fan rpm, hopper level, implement lift, manifold pressures

70.0 cm 30 inches 36 inches 38 inches 40 inches

306.1 cm 10 ft. 0.5 in. 15 ft. 0.5 in. 15 ft. 0.5 in. 15 ft. 0.5 in.

342.9 cm 11 ft. 3 in. 16 ft. 3 in. 210 cm 90 inches 108 inches 114 inches 120 inches

280.0 cm 120.0 inches 144.0 inches 152.0 inches 160.0 inches

Seed Monitor, monitoring*: Seed Tubes (all), Ground Speed

226 litres 6.4 bushels 169 litres 4.8 bushels

177.8 cm 5 ft. 10 in.

147.3 cm 4 ft. 10 in.

6 feet 6 inches (198 cm) (at 14 in. ground clearance)

Depends on Tractor Hitch

65 - 70 kW 85 - 90 hp 80 - 90 hp 80 - 90 hp 85 - 95 hp

1 or 2 Remotes, Closed-Center, 2250 psi, 10 gal/min (155 bar, 38 liters/min)

1500 kg 3300 lbs. 3000 lbs. 3000 lbs. 3600 lbs. 2100 kg 4500 lbs. 4200 lbs. 4200 lbs. 4800 lbs.

140 to 250 kg 305 to 545 pounds

25.4 cm 10 inches

0 to 8.9 cm 0 to 3.5 inches

Three-Point

8R19.5 LT

401-652M Table of Contents Index 2013-05-28

Great Plains YP825A3P Operator Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operator Manual

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

Avoid High Pressure Fluids

Keep Riders Off Machinery

Use Safety Lights and Devices

Transport Machinery Safely

Handle Chemicals Properly

Shutdown and Storage

Tire Safety

Practice Safe Maintenance

Safety At All Times

Safety Decals

818-323C Danger: Possible Chemical Hazard

818-337C Warning: Speed

818-339C Warning: High Pressure Fluid Hazard

818-525C Warning: Sharp Object (Option)

818-682C Warning: Markers (Option)

818-587C Caution: Read Operator’s Manual

838-595C Caution: Tire Pressure and Bolt Torque

Introduction

Models Covered

Description of Unit

Using This Manual

Owner Assistance

Preparation and Setup

Initial Setup

Post-Delivery/Seasonal Setup

Pre-Planting Setup

Hitching Tractor to Planter

Electrical Hookup

Hydraulic Hose Hookup

Current Style Color Coded Hose Handles

Older Style Hoses with Color Ties

Raise Parking Stands

Leveling Planter

Monitor Setup

Marker Setup (Option)

Operating Instructions

Pre-Start Checklist

Raising/Lowering Planter

Transport

Transport Steps

Typical Planter Weights

Loading Materials

Hopper Operations (s/n B1014R+)

Loading Seed (1.6 bu.hoppers)

Loading Materials

Hopper Operations (s/n B1013R-)

Loading Seed (1 bu.hoppers)

Loading Seed, continued

Monitor Operation

Air System Operation

Air and Seeding System Overview

Fan General Operating Information

Air-Pro® Meter Operation

Meter Operation

Marker Operation (Option) S/N-

Before Operating Markers

Marker Unfold (one side)

Both Sides Unfolded

Row Marker Operation

Folding The Markers

Marker Operation (Option) S/N+

Before Operating Markers

Marker Unfold (one side)

Row Marker Operation

Marker Controls

Field Set-Up Checklists

Field Operation

Short-Term Parking