Great Plains 2N-3020 Operator Manual

Operator’s Manual

2N-2420 and 2N-3020

Two-Section Folding No-Till Drill

Model Serial No.

2N-2420 C1701+

2N-3020 D1977+

Manufacturing, Inc.

www.greatplainsmfg.com

Read the operator’s manual entirely. When you see this symbol, the subsequent in-

!

structions and warnings are serious - follow without exception. Your life and the lives of
others depend on it!

© Copyright 2008 Printed

2/28/08

14570

Cover illustration may show optional equipment not supplied with standard unit.

196-164M-A

Table of Contents

Table of Contents

Great Plains Mfg., Inc.

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

Safety Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Description of Unit . . . . . . . . . . . . . . . . . . . . . . . . . 9

Intended Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Using This Manual. . . . . . . . . . . . . . . . . . . . . . . . . 9

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . 9

Section 1 Drill Preparation and Setup . . . . . . . . . . 10

Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . . 10

Hitch Height Adjustment . . . . . . . . . . . . . . . . . . . 10

Installing Drill Control Console . . . . . . . . . . . . . . 11

Bleeding Hydraulic Systems . . . . . . . . . . . . . . . . 11

Field-Lift Hydraulics. . . . . . . . . . . . . . . . . . . . 11

Transport-Lock Hydraulics. . . . . . . . . . . . . . . 11

Raise-To-Fold Hydraulics . . . . . . . . . . . . . . . 12

Fold Hydraulics . . . . . . . . . . . . . . . . . . . . . . . 12

Marker Hydraulics . . . . . . . . . . . . . . . . . . . . . 13

Frame Leveling Adjustment . . . . . . . . . . . . . . . . . 13

Aligning Boxes. . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Section 2 Operating Instructions . . . . . . . . . . . . . . 15

Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . . 15

Tractor Requirements . . . . . . . . . . . . . . . . . . . . . 15

Recommended Minimum Tractor Size . . . . . 15

Minimum Towing Vehicle Weight . . . . . . . . . . 15

Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Safety Lights . . . . . . . . . . . . . . . . . . . . . . . . . 15

Hitching Tractor to Drill . . . . . . . . . . . . . . . . . . . . 15

Operating Control Console . . . . . . . . . . . . . . . . . 16

Folding the Drill . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Folding Harrow Attachment. . . . . . . . . . . . . . 16

Unfolding the Drill . . . . . . . . . . . . . . . . . . . . . . . . 16

Lifting the Drill in the Field . . . . . . . . . . . . . . . . . . 17

Field Operations . . . . . . . . . . . . . . . . . . . . . . . . . 17

Opener Operation . . . . . . . . . . . . . . . . . . . . . 17

Marker Operation . . . . . . . . . . . . . . . . . . . . . 17

Shaft Monitor Operation . . . . . . . . . . . . . . . . 18

Electric Clutch Operation . . . . . . . . . . . . . . . 18

Transporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Section 3 Adjustments . . . . . . . . . . . . . . . . . . . . . . 19

No-Till Seeding . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Coulter Adjustments . . . . . . . . . . . . . . . . . . . . . . 19

Hydraulic Depth Control. . . . . . . . . . . . . . . . 19

Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Coulter Springs . . . . . . . . . . . . . . . . . . . . . . 20

Individual Coulters . . . . . . . . . . . . . . . . . . . . 20

Opener Adjustments. . . . . . . . . . . . . . . . . . . . . . 20

Depth-Gauging Wheels . . . . . . . . . . . . . . . . 20

Down-Pressure Springs . . . . . . . . . . . . . . . . 21

Press Wheels. . . . . . . . . . . . . . . . . . . . . . . . 21

Setting the Seeding Rate . . . . . . . . . . . . . . . . . . 21.

Small Seeds Attachment . . . . . . . . . . . . . . . 22

Seed Rate Charts. . . . . . . . . . . . . . . . . . . . . . . . 23

Small Seeds Attachment Seed Rate Charts . . . 27

Gauge-Wheel Drive Adjustment. . . . . . . . . . . . . 28

Disk Scraper Adjustment . . . . . . . . . . . . . . . . . . 28

Leveling Adjustment . . . . . . . . . . . . . . . . . . . . . . 28

Marker Adjustments . . . . . . . . . . . . . . . . . . . . . . 28

Marker Chain . . . . . . . . . . . . . . . . . . . . . . . . 28

Disk Adjustment . . . . . . . . . . . . . . . . . . . . . . 29

Folding Speed . . . . . . . . . . . . . . . . . . . . . . . 29

Coulter Tines . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Seed-Lok . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Section 4 Troubleshooting . . . . . . . . . . . . . . . . . . . 31

Section 5 Maintenance and Lubrication . . . . . . . . 34

General Maintenance . . . . . . . . . . . . . . . . . . . . . 34

Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Section 6 Options . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Coulter Tines . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Weight Brackets . . . . . . . . . . . . . . . . . . . . . . . . . 39

Markers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Small Seeds Attachment . . . . . . . . . . . . . . . . . . 40

Shaft Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Electric Clutches. . . . . . . . . . . . . . . . . . . . . . . . . 41

Rear Mount Boom . . . . . . . . . . . . . . . . . . . . . . . 41

Seed Box Agitator. . . . . . . . . . . . . . . . . . . . . . . . 42

Seed-Lok‚ Firming Wheels . . . . . . . . . . . . . . . . . 42

Seed-Cup Plugs . . . . . . . . . . . . . . . . . . . . . . . . . 42

Section 7 Specifications and Capacities . . . . . . . 43

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . . . 44

Torque Values Chart for Common Bolt Sizes . . . 44

Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

© Copyright 1999,2005, 2008 All rights Reserved

Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been taken in the preparation
of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the informa­tion contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products as it sees fit. This publication describes the state of this product at the
time of its publication, and may not reflect the product in the future.

The following are trademarks of Great Plains Mfg., Inc.: Application Systems, Ausherman, Land Pride, Great Plains, Seed-Lok

All other brands and product names are trademarks or registered trademarks of their respective holders.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

Great Plains Manufacturing, Incorporated Trademarks

Printed in the United States of America.

Great Plains Mfg., Inc.

Important Safety Information

Important Safety Information

Look for Safety Symbol

The SAFETY ALERT SYMBOL indi­cates there is a potential hazard to
personal safety involved and extra
safety precaution must be taken.
When you see this symbol, be alert
and carefully read the message that
follows it. In addition to design and

configuration of equipment, hazard
control and accident prevention are
dependent upon the awareness, con­cern, prudence and proper training of
personnel involved in the operation,
transport, maintenance and storage
of equipment.

!

Be Aware of Signal Words

Signal words designate a degree or
level of hazard seriousness. The sig­nal words are:

!

DANGER!

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

!

WARNING!

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

CAUTION!

!

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

For Your Protection

▲ Thoroughly read and understand

Safety Labels, page 5.

▲ Read all instructions noted on the

labels.

OFF

Keep Riders
Off Machinery

▲ Riders obstruct the operator’s

view. They could be struck by for­eign objects or thrown from the
machine.

▲ Never allow children to operate

equipment.

Shutdown and Storage

▲ Lower machine to ground, put

tractor in park, turn off engine,
and remove the key.

▲ Detach and store implements in a

area where children normally do
not play. Secure implement by
using blocks and supports.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

1

Important Safety Information

Great Plains Mfg., Inc.

Use Safety
Lights and Devices

▲ Slow moving tractors, self-pro-

pelled equipment, and towed
implements can create a hazard
when driven on public roads. They
are difficult to see, especially at
night.

▲ Flashing warning lights and turn

signals are recommended when­ever driving on public roads. Use
lights and devices provided with
implement.

Transport Machinery Safely

▲ Comply with state and local laws.
▲ Maximum transport speed for imple-

ment is 20 mph. DO NOT EXCEED.
Never travel at a speed which does
not allow adequate control of steer­ing and stopping. Some rough ter­rains require a slower speed.

▲ Sudden braking can cause a towed

load to swerve and upset. Reduce
speed if towed load is not equipped
with brakes.

▲ Do not tow a drill that, when fully

loaded, weighs more than 1.5 times
the weight of the towing vehicle.

Use A Safety Chain

▲ A safety chain will help control

drawn machinery should it sepa­rate from the tractor drawbar.

▲ Use a chain with the strength

rating equal to or greater than
the gross weight of the towed
machinery.

▲ Attach the chain to the tractor

drawbar support or other speci­fied anchor location. Allow only
enough slack in the chain to per­mit turning.

▲ Do not use safety chain for tow-

ing.

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 implement to the ground,

put tractor in park, turn off engine,
and remove key before performing
maintenance.

▲ Allow implement to cool completely.
▲ Install all transport locks on raised drill

before working underneath. Refer to
the Folding the Drill,“Operating
Instructions,” page 16, for instructions
on engaging the transport locks.

▲ Do not grease or oil implement while

it is in operation.

▲ Disk edges are sharp. Be careful

when working in this area.

▲ Disconnect battery ground cable (-)

before servicing or adjusting electri­cal systems or before welding on
implement.

▲ 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 implement before operation.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

2

Great Plains Mfg., Inc.

Important Safety Information

Prepare for Emergencies

▲ Be prepared if a fire starts.
▲ Keep a first aid kit and fire extin-

guisher handy.

▲ Keep emergency numbers for

doctor, ambulance, hospital and
fire department near phone.

911

Wear
Protective Equipment

▲ Wear protective clothing and

equipment.

▲ Wear clothing and equipment

appropriate for the job. Avoid
loose-fitting clothing.

▲ Prolonged exposure to loud noise

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

▲ Operating equipment safely

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

Avoid High
Pressure Fluids Hazard

▲ Escaping fluid under pressure can

penetrate the skin causing serious
injury.

▲ Avoid the hazard by relieving

pressure before disconnecting
hydraulic lines.

▲ Use a piece of paper or card-

board, 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 imme-

diate medical attention from a
physician familiar with this type of
injury.

Safety at All Times

Thoroughly read and understand the
instructions given in this manual before
operation. Refer to the Safety Labels,
page 5. Read all instructions noted on
the labels.

▲ Operator should be familiar with all

functions of the unit.

▲ Operate implement from the driver’s

seat only.

▲ Do not leave tractor or implement

unattended with engine running.

▲ Dismounting from a moving tractor

could cause serious injury or death.

▲ Do not stand between the tractor

and implement 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 implement.
Make sure all persons are clear of
working area.

▲ Turning tractor too tight may cause

implement to ride up on wheels.
This could result in injury or equip­ment damage.

Tire Safety

▲ Tire changing can be dangerous

and should be performed by
trained personnel using the cor­rect tools and equipment.

▲ When inflating tires, use a clip-on

chuck and extension hose long
enough to allow you to stand to
one side and NOT in front of or
over the tire assembly. Use a
safety cage if available.

▲ When removing and installing

wheels, use wheel-handling
equipment adequate for the
weight involved.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

3

Important Safety Information

Great Plains Mfg., Inc.

Handle
Chemicals Properly

▲ Read and follow chemical manu-

facturer’s instructions.

▲ Wear protective clothing.
▲ Handle all chemicals with care.
▲ Agricultural chemicals can be

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

▲ Inhaling smoke from any type of

chemical fire is a serious health
hazard.

▲ Store or dispose of unused chem-

icals as specified by the chemical
manufacturer.

▲ Before adding chemical to the

tank, make sure tank is at least
half full. Do not pour concentrate
into an empty tank.

▲ Never leave fill hose attached to

the sprayer after filling tank.
Chemicals in tank can siphon out
of tank and contaminate freshwa­ter source.

▲ Always keep clean water and

soap available in case of an emer­gency. Immediately and thor­oughly flush any area of the body
that is contaminated by chemi­cals.

▲ Do not touch boom components

with mouth or lips.

▲ If chemical is swallowed, carefully

follow the chemical manufac­turer’s recommendations and con­sult with a doctor.

▲ If persons are exposed to a chem-

ical 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 con-

tainers properly. By law rinsing of
the used chemical container must
be repeated three times. Puncture
the container to prevent future
use. An alternative is to jet-rinse
or pressure rinse the container.

▲ Wash hands and face before eat-

ing after working with chemicals.
Shower as soon as spraying is
completed for the day.

▲ Spray 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 the sprayer tank

within 100 feet of any freshwater
source or in a car wash.

▲ Rinse out sprayer tank. Spray rinse

water on last field sprayed.

Personal Safety Equipment

Great Plains advises all users of chemical pesticides or
herbicides to use the following personal safety equip­ment. Always follow the chemical label instructions.
Operator safety and the effectivity of the product
depends upon operator actions.

▲ Waterproof, wide-brimmed hat

▲ Waterproof apron

▲ Face shield, goggles or full face

respirator. Goggles with side
shields or a full face respirator is
required if handling or applying
dusts, wettable powders, or gran­ules or if being exposed to spray
mist.

▲ Cartridge-type respirator

approved for pesticide vapors
unless label specifies another
type of respirator.

▲ Waterproof, unlined gloves. Neo-

prene gloves are recommended.

▲ Cloth coveralls/outer clothing

changed daily; waterproof items
if there is a chance of becoming
wet with spray

▲ Waterproof boots or foot cover-

ings

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

4

Great Plains Mfg., Inc.

Important Safety Information

Safety Labels

Your implement comes equipped with all safety labels in place.
They were designed to help you safely operate your implement.

1. Read and follow label directions.

2. Keep all safety labels clean and legible.

3. Replace all damaged or missing labels. Order new labels
from your Great Plains dealer. Refer to this section for
proper label placement.

4. When ordering new parts or components, also request cor­responding safety labels.

5. To install new labels:

a. Clean the area on which the label is to be placed.

b. Peel backing from label. Press firmly on surface,

being careful not to cause air bubbles under label.

12945

12942

818-003C

Slow Moving Vehicle

838-266C

Red Reflector

2/28/08

12943

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

838-265C

Amber Reflectors

5

Important Safety Information

Great Plains Mfg., Inc.

12941

12944

818-045C

Warning Folding-Raising

818-020C

Caution Lowering Drill

818-078C

12950

General Caution

818-477C

Warning Transport

14526

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

6

Lock

Great Plains Mfg., Inc.

Important Safety Information

12950

818-188C

20 MPH Transport

12950

12950

818-019C

Negative Tongue Weight

818-475C/818-476C

Warning 30-Ft./24-Ft. Tongue Weight

2/28/08

13317

818-398C

Caution! Tires - Not a Step

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

7

Important Safety Information

12942

Great Plains Mfg., Inc.

838-267C

Daytime Reflector

13734

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

8

838-467C

Possible Chemical Hazard

Great Plains Mfg., Inc.

Introduction

Introduction

Great Plains welcomes you to its growing family of new
product owners. This implement has been designed with
care and built by skilled workers using quality materials.
Proper assembly, maintenance and safe operating prac­tices will help you get years of satisfactory use from the
machine.

Description of Unit

The two-section, folding, no-till drill is a towed seeding im­plement for no- or minimum-till soil conditions. The drill is
equipped with two hydraulic circuits. One is used to raise
and lower the drill for field operations. A separate electro­hydraulic circuit lifts, locks and folds the implement for
transport. An in-cab control console allows the operator to
switch between functions on the electro-hydraulic circuit.

The drill is outfitted with double-disk, side-depth-control
openers. The openers are mounted on parallel arms. Dou­ble-V press wheels follow the opener disks to firm the
seedbed.

Intended Usage

This machine is intended for use in minimum- or no-till ap­plications.

Using This Manual

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

Fill out the warranty sheet with the dealer at the time of
purchase. Give the dealer the completed white copy and
send the pink copy to Great Plains. Keep your yellow copy
in the manual for use when corresponding with the dealer.

This manual iscurrent at printing. Some parts may change
to assure top performance.

Definitions

Right and left as used in this manual are determined by
facing the direction the machine will travel while in use un­less otherwise stated.

IMPORTANT: A crucial point of information related to
the preceding topic. For safe and correct operation,
read and follow the directions provided before continu­ing.

Owner Assistance

If customer service or repair parts are needed contact
your Great Plains dealer. They have trained personnel,
parts and service equipment specially designed for Great
Plains products.

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 outside end of the left drill box as shown in Figure A.

16537

Figure A

Serial Number Plate

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

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

2. If you are still not satisfied, seek out the dealership
owner or general manager.

3. For further assistance, write to:

Product Support

Great Plains Mfg. Inc.

Service Department

P.O. Box 5060

Salina, KS 67402-5060

NOTE: Useful information related to the preceding topic.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

9

Section 1 Drill Preparation and Setup

Section 1 Drill Preparation and Setup

Great Plains Mfg., Inc.

This section will help you prepare your tractor and drill for
use. The drill hitch must be adjusted to match drawbar
height, and the drill control console must be installed in
your tractor.

This section also covers bleeding the drill hydraulics and
making drill frame and box adjustments. As the operator,
you may need to perform these functions after dill repair.
Before operating the drill, check that the hydraulic systems
are free or air, the frame is level, and boxes are aligned.

Prestart Checklist

1. Read and understand “Important Safety Informa­tion,” page 1.

2. Check that all working parts are moving freely, bolts
are tight, and cotter pins are spread.

3. Check that all grease fittings are in place and lubricat­ed. Refer to Lubrication,“Maintenance and Lubrica-
tion,” page 35.

4. Check that all safety labels and reflectors are correctly
located and legible. Replace if damaged. See Safety
Labels,“Important Safety Information,” page 5.

5. Inflate tires to pressure recommended and tighten
wheel bolts as specified. See “Appendix,” page 44.

Hitch Height Adjustment

For proper operation, the drill tongue must run parallel to
the ground in field position. Follow these instructions to
adjust the drill hitch to match your tractor drawbar height.

1. Check the distance from under the tongue to the
ground as shown in Figure 1-1. Using the drill jack, ad­just the tongue up or down until the distance is about
28 inches.

16273

Figure 1-1

Tongue Height

2. Back the tractor drawbar up to the drill hitch. Deter­mine how much adjustment is needed for the drill to
match drawbar height.

3. Unbolt the hitch from the tongue. Rebolt the hitch so
the drill matches drawbar height. Depending on the
size of your drill, refer to for the different ways you can
bolt the hitch and the resulting hitch heights.

16532

16274

Figure 1-2

Hitch Height Adjustment

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

10

Great Plains Mfg., Inc.

Section 1 Drill Preparation and Setup

4. Hitch the drill to the tractor using a hitch pin at least
one inch in diameter. Install a retaining clip on the
hitch pin to prevent it from working up.

NOTE: A clevis-style hitch, Great Plains part number 196­136H, is available through your Great Plains dealer.

IMPORTANT: When hitching the drill to a different trac­tor, check for differences in drawbar heights and re-ad­just the drill hitch accordingly.

Installing Drill Control Console

1. Mount the control box at a convenient location in the
tractor cab. Connect the 12-foot extension cable to the
pin connector on the back of the control box. Route
the cable to the tractor drawbar area. Secure the cable
to avoid damage.

2. Connect the power cord to a 12-volt power source on
the tractor. The polarity of the power supply is very im­portant. The red wire must be connected to the posi­tive (+) battery terminal. The white wire must be
connected to the negative (-) battery terminal.

Bleeding Hydraulic Systems

A hydraulic system with air in the circuit will move in jerky,
uneven motions. If your hydrualics were not properly bled
or you replace a hydraulic component, bleed the hydrau­lics.

Field-Lift Hydraulics

The field-lift system is equipped with four rephasing-type
hydraulic cylinders that require a special procedure for
bleeding air. Read and follow the procedure carefully. Air
in the system will cause uneven seeding across the drill.
Do not loosen hose fittings in order to bleed air from this
system.

!

WARNING!

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

!

CAUTION!

This drill has a negative tongue weight when unfolded and
raised. Be certain that the drill is hitched securely to your trac­tor drawbar and the hitch safety chain is securely attached to
the drill.

!

WARNING!

Never allow anyone under the drill when fittings are opened.
Escaping fluid may allow the drill to drop suddenly.

1. Check that the tractor reservoir is filled to the proper
level. It will take 4 gallons to charge the field-lift cylin­ders.

2. Put the tractor in park and set the parking brake. If
your tractor does not have these features, block
wheels to prevent tractor from rolling.

3. Raise and support the main frame and outside ends of
boxes just high enough to take the weight off all four
field-lift cylinders.

4. With the drill blocked and supported, unpin both ends
of all four field-lift cylinders. The field-lift cylinders are
located on the wing gauge wheels and the main-frame
transport wheels. Remove and safely position the cyl­inders so the rod ends are higher than the base ends.
Check that there is enough room for the cylinder rods
to fully extend without contacting anything.

IMPORTANT: To prevent trapped air pockets, the rod
end must be higher than any other part of the cylinder.

5. With the tractor at idle, engage the lift-hydraulics lever.
When the cylinders for both gauge wheels have com­pletely extended, hold the lever on for one minute.

6. Retract the cylinder rods. Extend the rods again and
hold the lever on for one more minute. Repeat this
step two more times to completely bleed the system.

7. Retract and reattach the hydraulic cylinders.

8. Recheck the tractor hydraulic reservoir level and add
clean fluid as necessary.

Transport-Lock Hydraulics

The transport-lock cylinders are not rephasing. The two
transport-lock cylinders are on each side of the main
frame above the transport axle pivot tubes. Follow these
steps to properly bleed the transport-lock hydraulics.

1. Check that the tractor reservoir is filled to the proper
level. It will take 0.07 gallons to charge the transport­lock cylinders.

2. Raise the drill to field position and support the main
frame.

3. Select the locks system on the control console. Re­tract the lock cylinders completely.

4. Loosen the connection between the hose and base­end tee fitting on the left lock cylinder. With the tractor
at idle slowly work the remote lever to feed oil to the
base end of the lock cylinders. Stop when you see oil
coming from around the fitting. Do not attempt to fully
extend the lock cylinders when bleeding the base
ends.

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Section 1 Drill Preparation and Setup

Great Plains Mfg., Inc.

5. With the cylinders completely extended, repeat step 4
for the rod-end fitting.

6. Recheck the tractor reservoir and add clean fluid as
necessary.

7. Retract and extend the lock cylinders several times to
expel most air from the system. The remaining air will
be expelled gradually during day-to-day operations.

8. Recheck the tractor hydraulic reservoir and add clean
fluid as necessary.

Raise-To-Fold Hydraulics

The raise-to-fold cylinders are double acting but not
rephasing. There are four cylinders in the raise-to-fold sys­tem. Two are on the tool bar, and two are on the tongue.
Follow these steps to properly bleed the raise-to-fold hy­draulics.

1. Check that the tractor reservoir is filled to the proper
level. It will take 3.4 gallons to charge the raise-to-fold
cylinders.

2. Select the raise-to-fold system on the control console.

3. Check that the drill is unfolded and resting safely on
the ground.

4. Disconnect the rod-end clevis of both tool-bar cylin­ders and both tongue cylinders. Support the cylinders
so the rods may extend and retract freely.

5. Retract the tongue cylinders completely. This will also
fully extend the tool-bar cylinders.

6. Loosen the hose-end fitting coming into the tee on the
base end of the left tongue cylinder.

IMPORTANT: Do not attempt to bleed an O-ring fitting
or O-ring damage may occur.

7. Slowly work the remote lever to feed oil to the base
end of the tongue cylinders. Stop when you see oil
coming from around the fitting. Do not attempt to ex­tend the tongue cylinders while bleeding the base
ends.

8. Loosen the hose-end fittings at the tee on the rod
ends of the tool-bar cylinders. Slowly work lever which
feeds oil to the rod end of the tool-bar cylinders. Stop
when you see oil coming from around the fittings. Do
not attempt to retract the tool-bar cylinders while
bleeding the rod ends.

9. Fully extend the tongue cylinders and retract the tool­bar cylinders.

10. Loosen the hose-end fitting at the tee on the rod end
of the left tongue cylinder.

11. Slowly work the lever in the opposite direction to feed oil to
rod end of the tongue cylinders. Stop when you see oil
coming from around the fitting. Do not attempt to retract
the tongue cylinders while bleeding the rod ends.

12. Loosen the hose-end fittings at the tee coming from the
base ends of the tool-bar cylinders. Slowly work the lever
to feed oil to the base end of the tool-bar cylinders. Stop
when you see oil coming from around the fittings. Do not
attempt to extend the tool-bar cylinders while bleeding the
base ends.

13. Extend and retract the cylinders several times to expel
most air from the system. The remaining air will gradually
be pushed to the tractor during day-to-day operations.

14. Repin the tongue and tool-bar cylinders. Raise and lower
the wings several times to check for proper operation. If
movement is erratic, repeat bleeding operation.

15. Recheck the tractor hydraulic reservoir level and add
clean fluid as necessary.

Fold Hydraulics

The fold cylinders are not rephasing. The two fold cylinders
connect the main frame and drill boxes. Follow these steps to
properly bleed the fold hydraulics.

IMPORTANT: Check that the transport-lock and raise­to-fold systems are bled and completely operational
before working with the fold hydraulics.

1. Make sure the tractor hydraulic fluid reservoir is filled to
the proper level. It will take 1.75 gallons to charge the fold
cylinders.

2. With the boxes unfolded unpin the rod-end clevis and sup­port the fold cylinders so they can be extended and retract­ed.

3. Select the fold system on the control console. Retract the
fold cylinders completely.

4. Loosen the connection between the hose-end and base­end tee fitting on the left fold cylinder.

5. With the tractor at idle slowly work the tractor lever to feed
oil to the base end of the fold cylinders. Stop when you see
oil coming from around the fitting. Do not attempt to extend
the fold cylinders when bleeding base ends.

6. With cylinders completely extended, repeat the procedure
for the hose connection at the rod end.

7. Retract and extend the cylinders several times to expel
most air from this system. The remaining air will gradually
be pushed to the tractor during day-to-day operations.

8. Recheck the tractor reservoir level and add clean fluid as
necessary.

IMPORTANT: Do not attempt to bleed an O-ring fitting
or O-ring damage may occur.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

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Great Plains Mfg., Inc.

Section 1 Drill Preparation and Setup

Marker Hydraulics

!

CAUTION!

Never allow anyone near the drill when cycling the markers.

1. Make sure the tractor hydraulic fluid reservoir is filled
to the proper level. It will take 1 gallon to charge the
dual marker cylinders.

2. With the drill unfolded and lowered, turn marker switch
on the control console to the left marker position.

3. With the marker unfolded, crack the hydraulic hose fit­ting located at the base end of the left marker cylinder.

4. With the tractor at idle slowly work the tractor remote
lever to feed oil to the base end. Stop when you see oil
coming out around the hose ends. Tighten the hose­end fittings.

5. Repeat step 3 and 4 for the hose-end fitting at the rod
end of the cylinder.

6. If dual markers are used, repeat steps 2, 3 and 4 for
the right marker cylinder.

IMPORTANT: Leave the control console switch in the
left marker position when bleeding the right marker cyl­inder. Both markers are controlled by the left marker
switch if your markers have a sequence valve.

7. Fold and unfold the marker slowly in order to work all
the air out of your marker hydraulics.

IMPORTANT: JIC fittings do not require high torque.
JIC and O-Ring fittings do not require sealant. Al­ways use liquid pipe sealant when adding or replac­ing pipe thread fittings. To avoid possible danger of
cracking hydraulic fittings from over tightening, do
not use plastic sealant tape.

Frame Leveling Adjustment

Periodic frame leveling should not be necessary, but if you
are having trouble maintaining equal coulter depth across
the drill, check that the frame is level. When the drill is lev­el, the box frames will be the same distance from the
ground at both ends of the drill.

Complete the stepsunder Bleedthe Fold Hydraulics,page
12, before proceeding.

Refer to Figure 1-3.

1. Locate the threaded eye bolt at the base end of the
gauge-wheel cylinders (1). The eye bolt is locked in
place by a jam nuts. Observe the amount of thread ex­posed above the upper nut and below the lower nut. If
the exposed threads are roughly equal, no initial ad­justment is needed. Go to step 3.

2. If the exposed threads above and below the nuts are
not equal, loosen and adjust the jam nuts until the ex­posed threads are within 3/8 inch of each other. Re­peat for other end of drill.

12779

Figure 1-3

Wing Gauge Wheel Eye-Bolt Adjustment

3. Move the drill to a level area. With the drill unfolded,
check that the tool-bar cylinders are completely ex­tended. Raise the drill to its highest position with the
field-lift cylinders. Keeping the tractor at an idle,
rephase the cylinders by holding the hydraulic lever on
for an additional 30 seconds. Immediately lower the
boxes until the coulters and openers are just ready to
touch the ground.

4. Move the gauge-wheel eye bolts (1) in or out until the
frames are level. When the frames are level, the open­ers on the outside end of the drill will be the same
height as the center openers.

NOTE: Eye-bolt adjustments are easier if the drill is first
lowered to the ground to remove some of the force on the
cylinders.

5. Repeat the steps above until the drill is level end-to­end when drilling in actual seeding conditions.

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Section 1 Drill Preparation and Setup

Aligning Boxes

For proper alignment, the outside ends of the drill boxes
must be 1 to 1 1/2 inches ahead of the inside ends. Follow
these steps to check box alignment and adjust as
necessary.

1. With the drill unfolded and lowered, pull forward a few
feet with the openers in the ground.

2. Extend a string line to the outer ends of the wing boxes
as shown inFigure 1-4. Measure from the string line to
each box as shown. For each box, measurement A
should be 1 to 1 1/2 inches greater than measurement
B.

3. If adjustment is needed, write down how many inches
the box should be moved to be within the 1 to 1 1/2­inch tolerance mentioned above. Also note the direc­tion you need to move the outside end of the box–for­ward or back.

String Line

Great Plains Mfg., Inc.

12778

Figure 1-5

Box Alignment Adjustment

Measurement A

Measurement B

Figure 1-4

Box Alignment Measurements

4. Make adjustments at the box end of each pull cable as
shown in Figure 1-5. Loosen the jam nut on the adjust­ment trunnion screw. Turn the screw in or out to move
the box end forward or backward as required. Retight­en the jam nut.

5. Pull ahead slightly and check the box alignment. Re­adjust the pull cables if necessary.

Measurement A

Measurement B

16306

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

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Great Plains Mfg., Inc.

Section 2 Operating Instructions

Section 2 Operating Instructions

This section will help you prepare the tractor and drill for
use. It will also give you 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.

Prestart Checklist

1. Carefully read “Important Safety Information,” page

1.

2. Lubricate the drill as indicated under Lubrication,
“Maintenance and Lubrication,” page 35.

3. Check all tires for proper inflation as indicated on Tire
Inflation Chart,“Appendix,” page 44.

4. Check all bolts, pins and fasteners. Torque as speci­fied on Torque Values Chart,“Appendix,” page 44.

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

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

7. Check that the drive-clutch linkage is operating proper­ly. The clutch jaws should be fully engaged with the drill
in seeding position. When the drill is fully raised the
clutch jaws should be completely separated.

8. Rotate both gauge wheels to see that seed cups and
drive are working and free from foreign material.

Tractor Requirements

Recommended Minimum Tractor Size

24-foot drill - 165 horsepower
30-foot drill - 200 horsepower

NOTE: When determining tractor size, soil type, terrain
and tillage practices must be considered.

Hitching Tractor to Drill

1. Use the drill jack to raise or lower the tongue as need­ed. Hitch the drill to the tractor using a hitch pin of ad­equate strength (at least one inch in diameter).

2. Install a retaining clip on the hitch pin to prevent it from
working up. Securely attach drill safety chain to tractor
drawbar.

3. Connect hydraulic hoses to tractor remotes. One pair
is for the four field-lift cylinders. The other pair is for
raise-to-fold, transport-lock, fold and marker cylinders.

!

WARNING!

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

4. Plug the control-console cable to the drill harness.
Plug the drill light cable to the tractor.

5. Crank the jack until tongue weight is resting on the
tractor drawbar. Unpin the tongue jack from the hitch­ing stob. Pin the jack to the stob on top of the tongue
as shown in Figure 2-1.

!

WARNING!

Towing the drill at high speeds or with a vehicle that is not
heavy enough can lead to loss of vehicle control. Loss of vehicle
control can lead to serious road accidents, injury and death.
The reduce the hazard:

• Do not exceed 20 mph.

• Do not tow a drill that, when fully loaded, weighs more
than 1.5 times the weight of the towing vehicle.

Minimum Towing Vehicle Weight

16,000 pounds

Hydraulics

Your tractor must have two remote outlets.

Safety Lights

Your tractor must be wired for the standard 7-pin electrical
connector. If your tractor is not equipped with this connec­tor, consult your dealer for installation.

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12782

Figure 2-1

Jack Positions

15

Section 2 Operating Instructions

Great Plains Mfg., Inc.

Operating Control Console

Your drill is equipped with a control console that is mount­ed in the tractor cab. Refer to Drill Control Console Hook-
Up, “Drill Preparation and Setup,” page 11. The console
is designed to control drill folding and optional markers,
electric clutches and shaft monitors. The console has a
master switch that must be on when operating any of
these systems.

The raise-to-fold, transport locks and fold switches are op­erated independently. Turn only one of these switches on
at one time. During field operations, turn all three switches
off.

To operate markers, turn the marker switch to the left po­sition during field operation. Turn this switch to the center
position (off) when folding or in transport.

To operate electric clutches, turn either the left or right
clutch switch to the off position to shut down the seeding
from the corresponding box. Turn the electric clutch
switches off when folding or in transport.

To operate shaft monitors, turn the shaft monitor switch on
during field operation and off when folding or transporting.

Folding the Drill

!

CAUTION!

To prevent serious injury or death:

• Always use transport locks when drill is folded.

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

with hydraulic oil.

• Stay away from frame sections when they are being raised or

lowered.

• Keep away and keep others away when folding or unfolding

the drill.

Fold the drill on level ground with the tractor in neutral. If
your drill has markers, be certain they are folded and their
control switches are off before folding. If your drill has a
harrow attachment, fold the attachment before folding the
drill. Refer to Folding Harrow Attachment, page 16.

1. Raise drill with field-lift cylinders until cylinders are ful­ly extended.

2. Turn on master power switch on control console. Turn
on raise-to-fold switch.

3. Work tractor hydraulic lever to raise drill into fold posi­tion.

4. Turn off raise-to-fold switch. Turn on transport-locks
switch.

5. Work tractor hydraulic lever to extend lock cylinders. If
lock cylinders will not extend, drill is not fully raised; re­peat steps 1 through 3.

NOTE: If your tractor is equipped with hydraulic flow con­trols, adjust flow-control valve for this circuit to the slowest
position.

6. Turn off transport-locks switch. Turn on fold switch.

7. Work tractor hydraulic lever to slowly retract fold cylin­ders.

IMPORTANT: Never attempt to fold without first oper­ating the raise-to-fold and transport-lock systems. Oth­erwise, serious equipment damage will occur.

8. Once drill is folded over transport carriers, turn off fold
switch. Turn on raise-to-fold switch.

9. Work tractor hydraulic lever to lower boxes onto carri­ers.

10. Turn off raise-to-fold switch.

Folding Harrow Attachment

Before hydraulically folding drill, fold optional coil-tine har­row as explained below.

1. Fold right-hand harrow assembly up until locking pin
engages into the first slot on harrow bracket.

2. Fold left-hand harrow assembly up until locking pin
engages into the second slot on harrow bracket.

Unfolding the Drill

!

CAUTION!

This drill has negative tongue weight when unfolded and
raised. Be certain the drill is hitched securely to your tractor
drawbar and the hitch safety chain is securely attached to the
tractor before raising or unfolding the drill.

!

CAUTION!

To prevent serious injury or death:

• Always use transport locks when drill is folded.

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

with hydraulic oil.

• Stay away from frame sections when they are being raised or

lowered.

• Keep away and keep others away when folding or unfolding

drill.

Unfold the drill on level ground with the tractor transmis­sion in neutral.

1. On control console, turn on raise-to-fold switch.

2. Work tractor hydraulic lever to raise boxes off trans­port carriers.

3. Turn off raise-to-fold switch. Turn on fold switch.

4. Work tractor hydraulic lever to slowly unfold drill box­es.

5. When drill is unfolded completely, turn off fold switch.
Turn on transport-lock switch.

6. Work tractor hydraulic lever to retract transport-lock
cylinders.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

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Great Plains Mfg., Inc.

Section 2 Operating Instructions

NOTE: If transport-lock cylinders will not retract, drill is not
raised fully. Make sure field-lift cylinders and transport-lift
cylinders are extended fully.

7. When transport-lock cylinders are retracted, turn off
transport-lock switch. Turn on raise-to-fold switch.

8. Work tractor hydraulic lever to lower drill.

9. Turn off raise-to-fold switch.

Lifting the Drill in the Field

Your drill is raised for field operations with hydraulic cylin­ders in a master-slave configuration. Over a period of nor­mal use the cylinders may get out of phase. This will cause
one side of the drill to run higher. To rephase the cylinders:

1. Raise the drill completely with the field-lift cylinders.
Hold the hydraulic lever on for several seconds until all
cylinders are fully extended. This should be done ev­ery time the implement is raised out of the ground.

2. When all field-lift cylinders are fully extended, momen­tarily reverse the hydraulic lever to retract the system
1/2 inch. This will help maintain levelness.

NOTE: Air in the field-lift system will cause jerky and un­even cylinder movement. Follow procedures under Bleed-

ing the Hydraulic Systems,“Drill Preparation and
Setup,” page 11, to properly bled air from the system.

Field Operations

For normal seeding operations:

1. Hitch drill to a tractor with sufficient weight and horse­power. Refer to Tractor Requirements, page 15, and
Hitching Tractor to Drill, page 15.

2. Perform all checks listed on Prestart Checklist, page

15.

3. Lower the drill into seeding position.

4. Observe the drill from the side. Check that the tongue
is running level with the ground. If not, refer to Hitch
Height Adjustment,“Drill Preparation and Setup,”
page 10.

5. Set the seeding rate for both boxes. Refer to Setting
the Seeding Rate,“Adjustments,” page 21. Make
sure the seeding rate is the same across the drill.

6. Load boxes with clean seed.

7. Record the acremeter readout. The acremeter is
mounted on the outside end of the left gauge-wheel
shaft. Subtract this initial readout from later readings
to calculate area drilled.

8. Pull forward, lower drill, and begin seeding.

9. Always lift the drill out of the ground when turning at
row ends and for other short-radius turns. Seeding will
stop automatically as the drill is raised in the field.

NOTE: This drill is offered in three different row spacing
widths; therefore, some of the drill boxes do not have the
same number of seed cups between each internal box di­vider. The section with the largest number of cups will
empty sooner.

Opener Operation

Never back up with openers in ground. If you do, check all
openers to be sure none are clogged or damaged.

For information on setting seed depth and opener adjust­ments, see No-Till Seeding,“Adjustments,” page 19, and
Leveling Adjustments,“Adjustments,” page 28. For more
information on troubleshooting opener problems, see
“Troubleshooting,” page 31.

Marker Operation

Optional marker attachmentsare sold as single (left-hand)
or dual units. The markers are operated on the same elec­tro-hydraulic circuit as the raise-to-fold, transport-lock and
folding functions.

Before operating the markers, make sure they are proper­ly bled as described under Bleed Marker Hydraulics,“Drill
Preparation and Setup,” page 13.

To operate the markers, turn the control console switch to
the left marker position after the drill is unfolded. Activate
the hydraulic lever to fold or unfold the marker.

The dual markers are equipped with a sequencing valve to
ease marker operation. Starting with both markers folded,
the sequence is:

1. Activate lever. Right unfolds; left marker stays folded.

2. Reverse lever. Right folds up; left stays folded.

3. Activate lever. Left unfolds; right stays folded.

4. Reverse lever. Left folds up; right stays folded.

5. Sequence repeats.

NOTE: Because of the sequencing valve, the left marker
position controls both markers. Do not turn marker switch
between left and right positions on the control console. If
you wish to operate the markers independently, contact
your Great Plains dealer for the additional parts needed to
modify the marker hydraulics.

Markers are equipped with a needle valves to set folding
speed. Refer to Folding Speed,“Adjustments,” page 29,
and adjust folding speed to a safe rate. Folding or unfold­ing markers at high speed can damage markers.

When marker operation is complete, return markers to the
folded position and turn the marker control-console switch
to the center (off) position.

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17

Section 2 Operating Instructions

Great Plains Mfg., Inc.

Shaft Monitor Operation

To operate the optional shaft monitors, turn the shaft mon­itor switch on the control console to the on position. If ei­ther seed-cup shaft stops for 20 seconds, an alarm will
sound. A light on the control console will designate the
failed shaft.

The 20-second delay is to prevent nuisance alarms when
turning at the end of the field. If the shaft alarm sounds, re­member you have traveled for 20 seconds without seed­ing.

Electric Clutch Operation

A mechanical jaw clutch on each gauge-wheel-arm pivot
turns seeding on and off as the drill is raised and lowered
in the field. Optional electric clutches allow you to turn
seeding off while the drill is lowered. A clutch for each
drive shaft allows you to control each drill box indepen­dently. The clutches are controlled through the in-cab con­trol console.

For regular field operation, turn the electric-clutch switch­es on the control console to the on position. This will acti­vate the magnet on each clutch and allow the clutch shafts
to rotate. The mechanical jaw clutches will continue to
control seeding.

To shut off seeding in one or both boxes while the drill is
lowered, turn one or both switches to the off position.

Transporting

!

CAUTION!

This implement should never be towed faster than 20 mph.

Before transporting, check and practice the following
items.

Fold Drill. Transport the drill in folded position with trans­port-lock cylinders extended. Refer to Folding the Drill,
page 16.

Loaded Boxes. This drill can be transported with boxes
loaded with grain, but only with extreme caution. The ad­ditional weight reduces maneuverability and increases
stopping distance.

Stopping Distance. Keep the weight of this drill in mind.
Allow sufficient stopping distance at all times. Reduce
speed prior to making any turns or other maneuvers. In­crease stopping distance if transporting with loaded box­es.

Bystanders. Check that no one is in the way before mov­ing. Do not allow anyone to ride on the drill.

Tractor Requirements. Check that the towing vehicle is
large enough to control the drill on the road. Refer to Trac-
tor Requirements, page 15.

Clearance. Know drill dimensions in transport position
and follow a route that provides adequate clearance from
all obstructions. Refer to “Specifications and Capaci-

ties,” page 43.

Tires. Check that all tires are properly inflated as listed on
Tire Inflation Chart,“Appendix,” page 44.

Road Rules. Comply with all federal, state and local laws

when transporting on public roads.

Warning Lights. Always use warning lights when trans­porting the drill.

Watch Traffic. Be prepared for sudden maneuvers from
following vehicles.

Markers. Always transport optional markers folded flat.
Make sure the second marker section rests securely on
the transport carrier.

Parking

Perform the following steps when parking the drill. Refer to
Storage,“Maintenance and Lubrication,” page 34, for in-
formation on long-term storage preparation.

1. Raise, lock and fold the drill in the transport position.
Refer to Folding the Drill, page 16.

2. Park the drill on a level, solid area.

3. Securely block the tires to prevent rolling.

4. Remove the jack from its storage stob. Pin it on the
stob on the left side of the tongue. If the ground is soft,
place a board or plate under the jack.

5. Extend the jack until tongue weight is off the drawbar.

6. Unplug the hydraulic lines from the tractor. Do not al­low hose ends to rest on the ground.

7. Unplug the control-console cable from the tractor. Un­plug the drill light cable from the tractor.

8. Remove hitch pin and safety chain from tractor draw­bar.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

18

Great Plains Mfg., Inc.

Section 3 Adjustments

Section 3 Adjustments

No-Till Seeding

To get full performance from your no-till drill, you need a
good understanding of coulter, opener and press wheel
operation.

Coulters. Drills with 10-inch row spacing are outfitted with
no-till coulters. Coulters are mounted independently and
directly ahead of each opener. The coulters cut through
heavy trash, making a groove in the soil. The coulters are
mounted directly on the box frame. Consequently, the cut­ting depth of all coulters changes as the drill is raised and
lowered. The cutting depth of the coulters is controlled by
an adjustable hydraulic depth stop. Coulters that run di­rectly in tire tracks can be lowered individually. Refer to
Coulter Adjustments, this page, for information on how to
make these adjustments.

Openers. Each openeris mounted on the drill withparallel
arms. This parallel-action mounting allows the openers to
move up and down while staying in-line with the coulters.
The parallel-action mounting also maintains the contact
point throughout the opener depth range. Opener double
disks widen the coulter groove, making a seed bed. The
down force needed to cut and widen the coulter groove is
supplied by two springs on the parallel arms. Adjusting
these springs changes opener down-force. Opener depth
is controlled by an adjustable side wheel. Refer to Opener
Adjustments, page 20, for information on how to make
these adjustments.

Press Wheels. To close the furrow, double-V press
wheels are attached to the rear of each opener. To provide
consistent seed firming, the press wheels are free to move
downward from their normal operating position. This sys­tem maintains pressing action even if the opener is lifted
when the disks encounter obstructions. Press-wheel
down pressure is adjustable. Refer to Press Wheels, page
21, for information on how to make this adjustment.

Coulter Adjustments

The drill is assembled so that when the coulters are at 2
inches deep, the seeding depth is approximately 1 inch.
This is a good baseline setting for most seeding opera­tions. As field conditions warrant, you can change settings
on the entire drill or individual coulters.

NOTE: Models with 7 1/2-inch row spacing are not outfit­ted with coulters.

Hydraulic Depth Control

The master field-lift cylinder on the left transport wheel is
equipped with a hydraulic valve that regulates coulter
depth. Figure 3-1 shows the valve and knob used to adjust
coulter depth.

Raise Coulters

Lower Coulters

16271

Figure 3-1

Left Transport-Wheel Cylinder with Depth-Control Stop

Turn the knob clockwise to lower the coulters. Each clock­wise rotation will lower the coulters about 3/32 inches.
Make depth adjustments with the implement slightly
raised. After adjusting the valve, raise and lower the imple­ment several times and recheck coulter depth.

The depth stop regulates depth on all coulters. If the ends
of either box run higher or lower than the center, the field­lift system may be out of phase or have air in it, or the
frame sections may not be level. Refer to Lifting the Drill in

the Field,“Operating Instructions,” page 17, Bleed Field-
Lift Hydraulics,“Drill Preparation and Setup,” page11, or
Leveling Adjustment, page 28.

Weights

If more weight is required for coulters to penetrate the soil,
weight brackets are available from your Great Plains deal­er. Refer to Weight Brackets,“Options,” page 39 for part
numbers and ordering information.

Refer to the charts below for the results of adding weights
to your drill. Always add an equal amount of weight to each
box frame. Never add more than 500 pounds to each box
frame.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

19

Section 3 Adjustments

Great Plains Mfg., Inc.

Weight Chart, 24-Foot Drill

7 1/2-In.

Rows

Empty Drill, Pounds 17,400 17,100 16,600

Pounds Per Coulter,
No Weights

Pounds Per Coulter,
Brackets and 1000
Pounds Added

Weight Chart, 30-Foot Drill

Empty Drill, Pounds 20,200 19,600 19,100

Pounds Per Coulter,
No Weights

Pounds Per Coulter,
Brackets and 1000
Pounds Added

NOTE: Optional markers, harrows and small-seed attach­ments add about 25 pounds per coulter. Completely load­ing the grain or small-seed boxes adds about 100 pounds
per coulter.

Coulter Springs

The coulter spring length is preset at 10 inches, giving the
coulter an initial operating force of 400 pounds. This set­ting is adequate for many difficult no-till conditions. For
lighter no-till conditions where rocks or other obstructions
are a problem, you can lengthen the springs to protect the
coulters from impact. In heavier conditions, shortening the
spring will increase coulter force. Refer to the chart below
for adjusting the coulter springs.

Coulter Down-Pressure Chart

Spring Length Coulter Force

10 1/4 in. 300 lb.

305 320 390

330 340 420

7 1/2-In.

Rows

285 300 335

305 325 385

8-In.

Rows

8-In.

Rows

10-In.

Rows

10-In.

Rows

1. Snug the hex-head clamp bolts (1) just until the u-bolts
are tight on each side of the spring bar.

2. Tighten nuts on u-bolts (2).

3. Finish tightening the hex-head clamp bolts.

10300

Figure 3-2

Individual Coulter Height Adjustment

IMPORTANT: Never lower any coulter more than 1 1/2
inches. Tire damage could result as the drill is folded.
Also note that when the drill is in the raised position,
ground clearance on lowered coulters is reduced.

NOTE: There may be as much as a 1/8-inch gap between
the clamp plates when the coulter is mounted securely.

Opener Adjustments

Depth-Gauging Wheels

The planting depth of each opener can be changed by ad­justing the position of the depth-control wheels. To adjust
the height of the depth-control wheels, lift and slide the T­handle at the rear of the opener as shown in Figure 3-3.

• For shallower seeding, slide the handle toward the drill.

• For deeper seeding, slide the handle away from the drill.

10 in. 400 lb.

9 3/4 in. 525 lb.

NOTE: Any attempt to reset the coulter spring length
shorter than 9 3/4 inches may contribute to premature fail­ure of parts and warranty shall be voided. If additional
force is necessary, add weights to the implement.

Individual Coulters

When coulters follow in tire tracks and do not give satisfac­tory depth, individual coulters can be lowered by loosen­ing the mounting clamps and adjusting the coulter to the
desired setting.

To retighten clamps:

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

20

16644

Figure 3-3

Opener Depth Adjustment

Great Plains Mfg., Inc.

Section 3 Adjustments

Down-Pressure Springs

You can adjust spring down pressure individually for each
opener. This is useful for penetrating hard soil and plant­ing in tire tracks.

To adjust spring down pressure, raise the drill. Refer to
Figure 3-4. Use a crowbar or other lever to lift the spring
plate off the pin. Remove the pin, then move the spring
plate to a new position. Replace the pin to hold the spring
plate in place, then replace plate over pin.

Lift plate with

Remove pin

crowbar

and slide plate

16628

Figure 3-4

Opener Spring Adjustment

Figure 3-5 shows the maximum and minimum spring set­tings.

16630

Maximum Pressure Minimum Pressure

Figure 3-5

Opener Spring Adjustment

Press Wheels

A spring in the press-wheel mechanism creates down
pressure on the press wheels. The amount of force need­ed to close the furrow will vary with field conditions.

To adjust, move the adjustment lever shown in Figure 3-6.

• For more down pressure, move the handle away from

the drill.

• For less down pressure, move the handle toward the

drill.

16629

Figure 3-6

Press-Wheel Adjustment

Setting the Seeding Rate

Calibrating the seeding rate requires four steps: shifting
the speed-change gearbox, adjusting the seed-rate han­dle, setting the seed-cup doors, and checking the seeding
rate.

Check the seed-rate charts starting on page 23 or inside
the drill boxes. These charts list the proper settings for the
speed-change gearbox and seed-rate handle for various
seeds and seeding rates.

The seed-rate charts are based on cleaned, untreated
seed of average size and test weight. The rates are based
on 11L x 15 8-ply rib implement tires. Many factors will af­fect seeding rates including foreign material, seed treat­ment, seed size, field conditions, tire pressure and test
weight. Minor adjustments likely will be needed. Set and
check the seeding rate using the procedures below, then
re-adjust the rate as necessary.

Before setting the seeding rate, rotate both gauge wheels
to see that the seed cups and drive are working properly
and free from foreign material.

NOTE: Each drill box has its own metering mechanism.
After adjusting and checking the rate on one box, set the
same rate on the other box.

1. Shift Speed-Change Gearbox

The speed-change gearbox, Figure 3-7, is designed
to give you a variety of speeds for different seeds and
seeding rates. You can shift between four different
drive types.

Refer to the seed-rate charts for the correct drive
type–1, 2, 3 or 4. Move the selector handle on the
gearbox until the correct number appears in the han­dle window as shown in Figure 3-7. Rotate the tires a
few turns to confirm the gearbox has engaged.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

21

Section 3 Adjustments

Great Plains Mfg., Inc.

13867

12916

Figure 3-7

Speed-Change Gearbox

Gearbox Ratios:

Drive Type 2 is 2.06 Times Faster Than 1

Drive Type 3 is 3.08 Times Faster Than 1

Drive Type 4 is 5.03 Times Faster Than 1

2. Adjust Seed-Rate Handle

Position the handle (Figure 3-8) to the setting indicat­ed on the seed-rate chart. To adjust, loosen the wing
nut under the handle and slide until indicator lines up
with desired setting. Retighten nut.

12927

Figure 3-8

Seed-Rate Handle

3. Set Seed-Cup Doors

For wheat and other small seeds, move the seed-cup­door handles to the highest position. For soybeans
and other large seeds, lower the handles to the sec­ond position. If excessive seed cracking occurs, lower
the handles to the third position. For seed-cup clean
out, move the handles to the fourth, wide-open posi­tion. Make sure all handles are in the same position
before drilling.

Figure 3-9

Seed-Cup Door Handle

4. Check Seeding Rate

a. Place several pounds of seed over the three seed

cups on the outside end of the drill box.

b. Disconnect the seedtubes fromthe threeopeners

fed by the covered cups.

c. Raise the drill off the ground.

d. Record the empty weight of a container large

enough to hold the seed metered for one acre.

e. Turn the gauge wheels to fill the seed cups. Turn

wheels until seed drops to the ground from each
cup.

f. Place a container under the three seed tubes to

gather the seed as it is metered.

g. Rotate the gauge wheel until one acre has been

tallied on the acremeter. This will be
about 225 rotations on a 24-foot drill and about
181 rotations on a 30-foot drill. Check that the
seed cups have plenty of seed coming into them.

h. Weigh the metered seed. Subtract the initial

weight of the container. Divide by three. Multiply
by the number of openers on your drill for the
pounds-per-acre seeding rate. If this figure is dif­ferent than desired, re-adjust the seed-rate han­dle and recheck the rate.

5. When satisfied with the seeding rate, repeat steps 1

through 3 for the other drill box, settingit to the same
rate.

Small Seeds Attachment

To set the seeding rate, refer to the small-seeds rate
charts on page 27. Move the seed-rate handle on the at­tachment to the setting indicated on the chart.

To calibrate the attachment to your material, follow the
steps listed under Check Seeding Rate, this page.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

22

Great Plains Mfg., Inc.

Section 3 Adjustments

Seed Rate Charts (Pounds per acre)

Setting number 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Alfalfa

Drive Type 1

(Based on

60#/bu)

Row Space

1.8 4.6 7.0 10.0 12.8 16.0 19.1 22.7 26.3 30.7 34.3 37.5 41.5 45.3 49.3 52.9 57.5 61.8 66.3 68.3 70.2

7.5"

1.7 4.3 6.5 9.4 12.1 15.0 17.9 21.3 24.7 28.8 32.2 35.2 39.0 42.6 46.3 49.6 54.0 58.0 62.3 64.1 65.9

8"

1.4 3.5 5.2 7.5 9.7 12.0 14.4 17.1 19.8 23.1 25.8 28.2 31.2 34.1 37.1 39.8 43.2 46.5 49.9 51.4 52.8

10"

Barley

Drive Type 1

(Based on

51#/bu)

Barley

Drive Type 2

(Based on

51#/bu)

Buckwheat

Drive Type 2

(Based on

48#/bu)

Buckwheat

Drive Type 3

(Based on

48#/bu)

Buffalo Grass

Drive Type 1

(Based on

23#/bu)

Bermuda Grass

Drive Type 1

(Based on

60#/bu)

Bermuda Grass

Drive Type 2

(Based on

60#/bu)

1.6 3.8 6.3 8.9 12.0 15.1 18.6 21.8 25.2 28.9 32.5 36.2 40.0 44.2 47.8 51.6 54.8 57.8 60.7 61.2 61.7

7.5"

1.5 3.5 6.0 8.4 11.3 14.2 17.4 20.5 23.7 27.1 30.6 34.0 37.6 41.5 44.8 48.5 51.5 54.2 57.0 57.4 57.9

8"

1.2 2.8 4.8 6.7 9.0 11.4 14.0 16.4 19.0 21.7 24.5 27.2 30.1 33.2 35.9 38.8 41.2 43.5 45.6 46.0 46.4

10"

Row Space

7.5" 2.9 7.2 13.3 18.0 24.9 30.9 37.7 44.9 51.7 59.4 66.4 72.8 80.2 87.1 95.0 102.6 111.1 119.1 126.8 128.8 130.8
8" 2.7 6.8 12.4 16.9 23.4 29.0 35.4 42.2 48.5 55.8 62.3 68.3 75.2 81.7 89.2 96.3 104.3 111.8 119.0 120.9 122.8

10" 2.2 5.4 10.0 13.6 18.7 23.2 28.4 33.8 38.9 44.7 49.9 54.7 60.3 65.5 71.4 77.2 83.5 89.6 95.3 96.8 98.4

Row Space

0.0 4.5 11.7 17.2 24.3 30.6 36.5 43.8 51.2 58.3 65.7 72.4 79.5 86.9 93.7 101.9 107.8 114.4 121.2 122.0 122.7

7.5"

0.0 4.2 10.9 16.2 22.9 28.7 34.3 41.1 48.1 54.7 61.7 68.0 74.6 81.6 87.9 95.6 101.2 107.4 113.8 114.5 115.2

8"

0.0 3.4 8.8 13.0 18.3 23.0 27.5 32.9 38.5 43.8 49.4 54.5 59.8 65.4 70.5 76.6 81.1 86.1 91.2 91.8 92.3

10"

Row Space

0.0 9.4 17.6 24.6 35.0 43.7 54.4 65.2 77.3 89.3 103.0 113.5 125.8 138.3 150.2 163.5 175.0 187.4 211.3 202.3 204.5

7.5"

0.0 8.8 16.5 23.1 32.9 41.0 51.0 61.2 72.5 83.9 96.7 106.5 118.1 129.9 141.0 153.5 164.3 175.9 198.3 189.9 191.9

8"

0.0 7.1 13.2 18.5 26.3 32.9 40.9 49.0 58.1 67.2 77.4 85.3 94.6 104.0 112.9 122.9 131.6 140.9 158.9 152.2 153.8

10"

Row Space

0.0 0.4 1.8 3.1 4.5 5.9 7.3 8.8 10.3 11.7 13.0 14.0 15.1 16.1 17.3 18.6 20.0 21.5 23.0 21.7 20.4

7.5"

0.0 0.4 1.7 2.9 4.2 5.5 6.9 8.2 9.6 11.0 12.2 13.2 14.2 15.1 16.2 17.5 18.8 20.1 21.6 20.4 19.1

8"

0.0 0.3 1.4 2.3 3.4 4.4 5.5 6.6 7.7 8.8 9.8 10.5 11.4 12.1 13.0 14.0 15.1 16.1 17.3 16.3 15.3

10"

Row Space

0.0 2.1 3.7 5.6 7.9 9.7 11.5 14.0 16.3 18.4 20.5 22.5 24.4 26.5 28.7 30.7 32.9 34.9 37.1 38.7 40.5

7.5"

0.0 2.0 3.4 5.3 7.4 9.1 10.8 13.2 15.3 17.3 19.2 21.1 22.9 24.9 26.9 28.9 30.9 32.8 34.8 36.3 38.0

8"

0.0 1.6 2.8 4.2 6.0 7.3 8.6 10.5 12.2 13.8 15.4 16.9 18.4 20.0 21.6 23.1 24.7 26.3 27.9 29.1 30.5

10"

Row Space

0.0 4.3 7.5 11.6 16.2 20.0 23.6 28.8 33.5 37.8 42.1 46.2 50.2 54.6 58.9 63.2 67.6 71.8 76.2 79.5 83.3

7.5"

0.0 4.1 7.1 10.9 15.3 18.7 22.2 27.0 31.4 35.5 39.5 43.4 47.1 51.2 55.3 59.3 63.5 67.4 71.5 74.6 78.2

8"

0.0 3.3 5.7 8.7 12.3 15.0 17.8 21.7 25.2 28.4 31.6 34.7 37.8 41.0 44.3 47.5 50.8 54.0 57.3 59.8 62.7

10"

Row Space

Bermuda Grass

Drive Type 3

(Based on

60#/bu)

Bermuda Grass

Drive Type 4

(Based on

60#/bu)

Fescue K-31

Drive Type 2

(Based on

21#/bu)

Fescue K-31

Drive Type 3

(Based on

21#/bu)

Fescue K-31

Drive Type 4

(Based on

21#/bu)

Flax/Sudan

Drive Type 1

(Based on

55#/bu)

0.0 5.1 11.5 16.9 24.1 29.9 36.6 42.5 48.8 55.3 61.2 67.6 73.6 79.9 86.0 92.9 97.5 103.6 109.7 114.0 119.1

7.5"

0.0 4.8 10.8 15.9 22.7 28.1 34.4 39.9 45.8 51.9 57.5 63.5 69.1 75.0 80.7 87.2 91.6 97.2 103.0 107.0 111.8

8"

0.0 3.8 8.7 12.7 18.2 22.5 27.5 32.0 36.7 41.6 46.0 50.8 55.4 60.1 64.6 69.9 73.4 77.9 82.5 85.7 89.5

10"

Row Space

7.5" 0.0 8.3 18.8 27.6 39.4 48.8 59.7 69.3 79.5 90.1 99.8 110.2 120.1 130.3 140.1 151.5 159.0 168.9 178.9 185.8 194.1
8" 0.0 7.8 17.6 25.9 37.0 45.8 56.0 65.0 74.6 84.6 93.7 103.5 112.7 122.3 131.6 142.2 149.3 158.5 168.0 174.4 182.2

10" 0.0 6.2 14.1 20.7 29.7 36.7 44.9 52.1 59.8 67.8 75.1 82.9 90.3 98.0 105.4 114.0 119.6 127.0 134.6 139.7 146.0

Row Space

2.3 4.2 6.3 8.9 11.3 13.8 17.1 19.2 22.1 24.8 28.4 30.3 33.0 35.9 38.6 41.3 43.9 46.0 47.8 48.9 49.2

7.5"

2.1 3.9 5.9 8.3 10.6 13.0 16.0 18.0 20.7 23.3 26.6 28.4 31.0 33.7 36.3 38.8 41.3 43.2 44.9 45.9 46.2

8"

1.7 3.1 4.7 6.7 8.5 10.4 12.8 14.4 16.6 18.6 21.3 22.8 24.8 27.0 29.1 31.1 33.0 34.6 35.9 36.8 37.0

10"

Row Space

2.4 5.8 9.7 13.3 17.0 21.5 24.8 29.7 33.8 38.1 41.5 46.1 50.2 54.1 57.9 62.0 65.7 69.1 72.2 72.9 74.9

7.5"

2.3 5.4 9.1 12.5 15.9 20.2 23.3 27.9 31.7 35.8 39.0 43.3 47.1 50.8 54.4 58.2 61.6 64.8 67.8 68.4 70.3

8"

1.8 4.4 7.3 10.0 12.8 16.2 18.6 22.3 25.4 28.7 31.2 34.7 37.8 40.7 43.6 46.6 49.4 51.9 54.3 54.8 56.3

10"

Row Space

3.9 9.4 15.8 21.7 27.7 35.0 40.4 48.4 55.1 62.2 67.7 75.2 81.9 88.2 94.5 101.0 107.1 112.6 117.7 118.9 122.1

7.5"

3.7 8.9 14.8 20.3 26.0 32.9 37.9 45.5 51.7 58.4 63.5 70.6 76.9 82.8 88.7 94.9 100.5 105.7 110.5 111.6 114.7

8"

3.0 7.1 11.9 16.3 20.8 26.3 30.4 36.4 41.4 46.8 50.9 56.5 61.6 66.3 71.1 76.0 80.5 84.7 88.6 89.4 91.9

10"

Row Space

7.5" 0.0 3.1 6.9 9.8 13.5 16.8 20.2 23.6 27.4 30.9 35.0 38.2 41.7 45.5 49.4 54.1 58.3 63.3 68.5 69.6 71.0
8" 0.0 2.9 6.4 9.2 12.6 15.8 19.0 22.2 25.7 29.0 32.8 35.9 39.2 42.7 46.4 50.8 54.8 59.5 64.3 65.3 66.6

10" 0.0 2.4 5.2 7.4 10.1 12.7 15.2 17.8 20.6 23.3 26.3 28.7 31.4 34.2 37.2 40.7 43.9 47.6 51.5 52.4 53.4

Row Space

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

23

Great Plains Mfg., Inc.

Section 3 Adjustments

Setting number 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

K.Bluegrass

Drive Type 3

(Based on

23#/bu)

0.0 4.6 7.5 9.9 13.5 15.9 19.1 22.2 25.4 28.7 32.1 35.0 38.1 41.3 44.2 47.4 50.0 52.6 54.8 56.7 58.4

7.5"

0.0 4.3 7.1 9.3 12.7 15.0 17.9 20.9 23.8 27.0 30.2 32.9 35.8 38.8 41.5 44.5 46.9 49.4 51.4 53.3 54.8

8"

0.0 3.5 5.7 7.4 10.2 12.0 14.3 16.7 19.1 21.6 24.2 26.3 28.7 31.1 33.2 35.7 37.6 39.6 41.2 42.7 43.9

10"

Row Space

K.Bluegrass

Drive Type 4

(Based on

23#/bu)

Millet

Drive Type 1

(Based on

60#/bu)

Milo

Drive Type 1

(Based on

60#/bu)

Oats

Drive Type 2

(Based on

37#/bu)

Oats

Drive Type 3

(Based on

37#/bu)

Orchard Grass

Drive Type 1

(Based on

18#/bu)

Orchard Grass

Drive Type 2

(Based on

18#/bu)

0.0 7.5 12.3 16.1 22.0 26.0 31.1 36.2 41.3 46.8 52.4 57.1 62.2 67.3 72.0 77.3 81.5 85.8 89.3 92.5 95.2

7.5"

0.0 7.0 11.5 15.2 20.7 24.4 29.2 34.0 38.8 44.0 49.2 53.6 58.4 63.2 67.6 72.6 76.5 80.6 83.8 86.8 89.4

8"

0.0 5.6 9.3 12.1 16.6 19.5 23.4 27.2 31.1 35.2 39.4 42.9 46.8 50.6 54.2 58.2 61.3 64.5 67.1 69.6 71.6

10"

Row Space

1.2 3.9 6.9 9.8 13.1 16.3 19.6 22.8 26.3 29.8 33.3 36.8 40.6 43.8 47.7 51.6 55.2 59.2 63.4 64.4 65.3

7.5"

1.1 3.7 6.4 9.2 12.3 15.3 18.4 21.4 24.7 28.0 31.2 34.5 38.1 41.2 44.8 48.5 51.8 55.6 59.5 60.4 61.3

8"

0.9 2.9 5.2 7.4 9.8 12.2 14.7 17.1 19.8 22.4 25.0 27.7 30.5 33.0 35.9 38.8 41.5 44.5 47.7 48.4 49.1

10"

Row Space

0.0 3.9 7.4 10.9 14.8 18.8 23.3 28.0 32.7 37.5 43.1 47.5 52.5 57.6 62.5 67.6 72.4 76.7 81.7 83.9 85.4

7.5"

0.0 3.7 6.9 10.2 13.9 17.6 21.8 26.3 30.7 35.2 40.4 44.5 49.3 54.0 58.7 63.4 68.0 72.0 76.7 78.7 80.1

8"

0.0 2.9 5.5 8.2 11.1 14.1 17.5 21.1 24.6 28.2 32.4 35.7 39.5 43.3 47.0 50.8 54.5 57.7 61.4 63.1 64.2

10"

Row Space

0.0 2.1 6.1 9.7 14.2 17.5 22.2 25.6 29.8 33.8 38.3 42.3 46.8 51.5 56.2 61.3 65.7 70.3 75.5 77.1 77.9

7.5"

0.0 2.0 5.7 9.1 13.3 16.5 20.9 24.0 28.0 31.7 36.0 39.7 44.0 48.4 52.7 57.6 61.6 66.0 70.9 72.4 73.1

8"

0.0 1.6 4.6 7.3 10.7 13.2 16.7 19.2 22.4 25.4 28.8 31.8 35.2 38.7 42.2 46.1 49.4 52.9 56.8 58.0 58.6

10"

Row Space

0.0 4.3 10.1 14.5 20.0 26.3 32.4 39.1 45.9 52.9 60.4 66.6 73.6 80.4 87.4 94.4 101.4 108.4 115.9 117.3 116.9

7.5"

0.0 4.1 9.5 13.6 18.8 24.7 30.4 36.7 43.1 49.6 56.7 62.6 69.1 75.5 82.0 88.6 95.2 101.8 108.8 110.2 109.7

8"

0.0 3.3 7.6 10.9 15.1 19.8 24.3 29.4 34.5 39.8 45.4 50.1 55.4 60.5 65.7 71.0 76.3 81.5 87.2 88.2 87.9

10"

Row Space

7.5" 0.0 0.7 1.5 2.2 3.0 3.7 4.4 5.3 6.1 7.0 8.0 8.8 9.8 10.8 11.7 12.8 13.5 14.3 14.9 15.3 15.5
8" 0.0 0.7 1.4 2.1 2.8 3.5 4.1 5.0 5.7 6.6 7.5 8.3 9.2 10.1 11.0 12.0 12.7 13.4 14.0 14.3 14.6

10" 0.0 0.5 1.1 1.6 2.3 2.8 3.3 4.0 4.6 5.3 6.0 6.7 7.4 8.1 8.8 9.6 10.2 10.7 11.2 11.5 11.7

Row Space

0.0 1.4 3.1 4.5 6.2 7.6 9.0 10.9 12.6 14.5 16.4 18.2 20.1 22.2 24.1 26.3 27.8 29.3 30.6 31.4 31.9

7.5"

0.0 1.4 2.9 4.2 5.8 7.1 8.5 10.3 11.8 13.6 15.4 17.1 18.9 20.9 22.7 24.7 26.1 27.5 28.7 29.5 30.0

8"

0.0 1.1 2.4 3.4 4.7 5.7 6.8 8.2 9.4 10.9 12.3 13.7 15.1 16.7 18.2 19.7 20.9 22.0 23.0 23.6 24.0

10"

Row Space

Orchard Grass

Drive Type 3

(Based on

18#/bu)

Orchard Grass

Drive Type 4

(Based on

18#/bu)

Peas

Drive Type 3

(Based on

61#/bu)

Peas

Drive Type 4

(Based on

61#/bu)

Pinto Beans

Drive Type 1

(Based on

61#/bu)

Rape

Drive Type 1

(Based on

51#/bu)

0.0 2.7 4.5 6.5 9.1 10.9 13.0 15.5 17.6 20.5 23.1 26.1 29.0 31.9 34.8 37.7 39.8 41.8 43.8 45.4 46.9

7.5"

0.0 2.5 4.2 6.1 8.6 10.2 12.2 14.5 16.5 19.3 21.6 24.5 27.2 29.9 32.6 35.4 37.4 39.2 41.2 42.6 44.0

8"

0.0 2.0 3.4 4.9 6.9 8.2 9.8 11.6 13.3 15.4 17.3 19.6 21.8 24.0 26.1 28.4 30.0 31.4 33.0 34.1 35.3

10"

Row Space

0.0 4.3 7.5 10.6 14.9 17.7 21.1 25.2 28.7 33.5 37.6 42.5 47.2 52.0 56.7 61.5 65.0 68.1 71.5 74.0 76.5

7.5"

0.0 4.1 6.9 10.0 14.0 16.6 19.8 23.7 27.0 31.4 35.3 39.9 44.3 48.8 53.2 57.7 61.0 63.9 67.1 69.5 71.8

8"

0.0 3.3 5.5 8.0 11.2 13.3 15.9 18.9 21.6 25.2 28.3 32.0 35.5 39.1 42.6 46.3 48.8 51.2 53.8 55.7 57.5

10"

Row Space

7.5" 0.0 0.0 15.8 28.5 43.4 57.5 70.2 85.2 99.5 114.9 129.0 141.7 155.7 168.5 182.5 196.9 209.8 222.6 235.4 236.6 237.7

0.0 0.0 14.9 26.7 40.7 53.9 65.9 80.0 93.4 107.9 121.1 133.0 146.2 158.2 171.3 184.9 197.0 209.0 221.0 222.1 223.1

8"

0.0 0.0 11.9 21.4 32.6 43.2 52.8 64.1 74.8 86.4 97.0 106.6 117.1 126.7 137.3 148.1 157.8 167.4 177.0 177.9 178.7

10"

Row Space

7.5" 0.0 0.0 18.5 39.4 61.0 82.7 102.7 126.4 148.8 171.2 191.9 213.7 233.8 255.9 276.7 297.7 318.9 338.9 358.0 358.6 359.2

0.0 0.0 17.3 37.0 57.2 77.6 96.4 118.6 139.7 160.8 180.3 200.7 219.5 240.2 259.8 279.5 299.3 318.2 336.1 336.7 337.2

8"

0.0 0.0 13.9 29.6 45.8 62.2 77.3 95.0 111.9 128.8 144.3 160.8 175.9 192.4 208.1 223.9 239.8 254.9 269.2 269.7 270.1

10"

Row Space

0.0 0.0 7.1 10.8 14.6 19.7 24.7 29.5 34.5 39.4 44.3 48.7 53.2 57.6 62.3 67.5 71.4 75.9 80.8 80.7 80.5

7.5"

0.0 0.0 6.7 10.1 13.7 18.5 23.2 27.7 32.3 37.0 41.6 45.7 50.0 54.0 58.4 63.4 67.0 71.2 75.8 75.7 75.6

8"

0.0 0.0 5.3 8.1 11.0 14.8 18.6 22.2 25.9 29.6 33.3 36.6 40.0 43.3 46.8 50.8 53.7 57.1 60.7 60.7 60.5

10"

Row Space

0.0 3.4 6.5 8.8 11.9 14.6 17.5 20.8 23.9 26.9 30.2 32.9 35.9 38.9 42.2 45.3 49.0 52.7 56.6 57.9 59.5

7.5"

0.0 3.2 6.1 8.3 11.2 13.7 16.5 19.6 22.4 25.3 28.3 30.9 33.7 36.5 39.6 42.5 46.0 49.5 53.1 54.3 55.9

8"

0.0 2.5 4.9 6.7 9.0 11.0 13.2 15.7 18.0 20.3 22.7 24.7 27.0 29.3 31.7 34.0 36.9 39.6 42.6 43.5 44.8

10"

Row Space

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

24

Great Plains Mfg., Inc.

Section 3 Adjustments

Setting number 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rice-Sh Grain

Drive Type 2

(Based on

43#/bu)

0.0 4.8 9.1 15.8 21.6 26.2 32.9 37.2 42.7 48.4 54.3 59.7 65.2 70.8 76.9 83.0 88.5 94.5

7.5"

0.0 4.5 8.5 14.8 20.3 24.6 30.9 34.9 40.0 45.5 51.0 56.1 61.2 66.5 72.2 77.9 83.1 88.7

8"

0.0 3.6 6.8 11.9 16.3 19.7 24.8 28.0 32.1 36.4 40.9 44.9 49.0 53.3 57.9 62.4 66.6 71.1

10"

Row Space

100.6 101.1 101.6

94.4 94.9 95.4

75.7 76.0 76.4

Rice-Sh Grain

Drive Type 3

(Based on

43#/bu)

Rice-Sh Grain

Drive Type 4

(Based on

43#/bu)

Rice-Lg Grain

Drive Type 2

(Based on

47#/bu)

Rice-Lg Grain

Drive Type 3

(Based on

47#/bu)

Rice-Lg Grain

Drive Type 4

(Based on

47#/bu)

Rye

Drive Type 1

(Based on

57#/bu)

Rye-Perennial

Drive Type 3

(Based on

36#/bu)

2.4 9.2 15.1 23.7 32.1 38.1 46.4 53.1 61.3 70.0 80.0 89.3 98.0

7.5"

2.3 8.6 14.2 22.2 30.1 35.8 43.6 49.9 57.6 65.7 75.1 83.9 92.0

8"

1.8 6.9 11.3 17.8 34.1 28.7 34.9 39.9 46.1 52.7 60.1 67.2 73.7

10"

Row Space

3.9 15.0 24.8 38.6 52.3 62.2 75.7 86.6

7.5"

3.7 14.0 23.1 36.2 49.1 58.4 71.0 81.3

8"

3.0 11.3 18.5 29.0 39.3 46.8 56.9 65.1

10"

Row Space

0.0 2.4 7.6 12.7 17.9 23.5 28.9 34.1 39.4 44.9 54.3 55.2 60.4 65.5 70.7 76.1 80.5 85.0 88.6 90.9 92.6

7.5"

0.0 2.3 7.2 11.9 16.8 22.1 27.2 32.0 37.0 42.2 51.0 51.8 56.7 61.5 66.3 71.5 75.6 79.8 83.2 85.4 87.0

8"

0.0 1.8 5.7 9.6 13.4 17.7 21.8 25.7 29.7 33.8 40.9 41.5 45.4 49.3 53.1 57.2 60.5 63.9 66.6 68.4 69.7

10"

Row Space

0.0 0.0 11.0 18.1 26.4 35.0 44.1 51.2 59.2 67.6 75.1 82.1 89.1 96.6

7.5"

0.0 0.0 10.4 17.0 24.8 32.9 41.4 48.1 56.5 63.5 70.5 77.1 83.6 90.7

8"

0.0 0.0 8.3 13.6 19.9 26.3 33.2 38.5 44.5 50.8 56.5 61.7 67.0 72.6

10"

Row Space

0.0 0.0 18.0 29.5 43.1 57.1 71.9 83.5 96.4

7.5"

0.0 0.0 16.9 27.7 40.4 53.6 67.5 78.3 90.5

8"

0.0 0.0 13.5 22.2 32.4 42.9 54.1 62.8 72.5

10"

Row Space

0.0 2.3 6.6 10.6 15.4 20.0 23.5 29.0 34.1 39.3 44.3 48.5 52.6 57.2 61.7 67.3 72.4 78.2 84.5 85.0 85.4

7.5"

0.0 2.2 6.2 9.9 14.5 18.8 22.0 27.2 32.0 36.9 41.6 45.5 49.4 53.7 57.9 63.2 67.9 73.4 79.3 79.8 80.1

8"

0.0 1.8 4.9 8.0 11.6 15.1 17.6 21.8 25.6 29.6 33.3 36.5 39.6 43.0 46.4 50.6 54.4 58.8 63.5 64.0 64.2

10"

Row Space

0.0 2.3 6.6 10.6 15.4 20.0 23.5 29.0 34.1 39.3 44.3 48.5 52.6 57.2 61.7 67.3 72.4 78.2 84.5 85.0 85.4

7.5"

0.0 2.2 6.2 9.9 14.5 18.8 22.0 27.2 32.0 36.9 41.6 45.5 49.4 53.7 57.9 63.2 67.9 73.4 79.3 79.8 80.1

8"

0.0 1.8 4.9 8.0 11.6 15.1 17.6 21.8 25.6 29.6 33.3 36.5 39.6 43.0 46.4 50.6 54.4 58.8 63.5 64.0 64.2

10"

Row Space

100.0 114.2 130.4 145.6 159.8 174.4 188.9 201.7 213.4 225.2 237.4 237.4 237.4

93.9 107.2 122.4 136.7 150.0 163.7 177.4 189.4 200.3 211.4 222.9 222.8 222.9

75.2 85.9 98.1 109.5 120.2 131.2 142.1 151.7 160.5 169.3 178.6 178.5 178.6

110.2 122.4 133.8 145.3 157.5 170.8 183.7 196.8 209.0 219.5 227.9 235.8

103.5 114.9 125.6 136.4 147.8 160.4 172.5 184.8 196.2 206.1 214.0 221.3

82.9 92.1 100.7 109.2 118.4 128.5 138.2 148.0 157.2 165.1 171.4 177.3

107.0 115.9 123.7 130.9 138.1 145.6 145.6 145.6

100.4 108.8 116.2 122.8 129.6 136.7 136.7 136.7

80.4 87.2 93.1 98.4 103.9 109.5 109.5 109.5

104.8 112.7 120.7 128.2 134.6 139.8 144.6

98.4 105.8 113.3 120.4 126.4 131.2 135.8

78.8 84.7 90.8 96.4 101.3 105.1 108.8

Rye-Perennial

Drive Type 4

(Based on

36#/bu)

Soybeans

Drive Type 1

(Based on

58#/bu)

Soybeans

Drive Type 2

(Based on

58#/bu)

Soybeans

Drive Type 3

(Based on

58#/bu)

Soybeans

Drive Type 4

(Based on

58#/bu)

0.0 7.9 18.5 26.0 35.1 45.3 53.3 63.8 72.8 82.7 92.3

7.5"

0.0 7.4 17.4 24.4 32.9 42.5 50.0 59.9 68.4 77.6 86.6

8"

0.0 5.9 13.9 19.5 26.4 34.0 40.1 48.0 54.8 62.2 69.4

10"

Row Space

0.0 2.3 6.5 11.0 16.1 19.3 24.0 28.2 32.7 37.4 41.3 46.4 51.0 55.4 59.7 64.4 68.1 72.7 77.4 77.8 78.0

7.5"

0.0 2.2 6.1 10.3 15.1 18.2 22.5 26.5 30.7 35.1 38.8 43.5 47.9 52.0 56.1 60.4 64.0 68.2 72.6 73.0 73.2

8"

0.0 1.8 4.9 8.2 12.1 14.5 18.0 21.2 24.6 28.1 31.1 34.9 38.3 41.6 44.9 48.4 51.2 54.7 58.2 58.5 58.7

10"

Row Space

0.0 4.8 13.4 22.5 33.2 39.8 49.3 57.9 67.3 76.8 85.0 95.3

7.5"

0.0 4.5 12.5 21.2 31.1 37.3 46.2 54.4 63.2 72.1 79.8 89.5

8"

0.0 3.6 10.0 16.9 24.9 29.9 37.0 43.6 50.6 57.7 63.9 71.7

10"

Row Space

0.0 9.7 18.8 33.8 49.7 59.2 74.4 84.5 97.3 109.9 123.9 137.1 151.1 164.2 178.7 190.3 207.6 221.9 237.1 237.3 237.6

7.5"

0.0 9.1 17.7 31.7 46.7 55.5 69.8 79.3 91.3 103.1 116.3 128.7 141.9 154.1 167.7 178.6 194.9 208.3 222.6 222.8 223.0

8"

0.0 7.3 14.2 25.4 37.4 44.5 55.9 63.6 73.2 82.6 93.2 103.1 113.7 123.5 134.4 143.1 156.2 166.9 178.3 178.5 178.7

10"

Row Space

0.0 15.7 30.7 55.1 81.1 96.4 121.2 137.8 158.6 179.1 201.9 223.6 246.4 267.7 291.3 310.2 338.5 361.8 386.6 387.0 387.3

7.5"

0.0 14.8 28.8 51.7 76.1 90.5 113.8 129.3 148.9 168.1 189.6 209.9 231.3 251.3 273.5 291.2 317.8 339.6 362.9 363.3 363.6

8"

0.0 11.8 23.1 41.4 61.0 72.5 91.2 103.6 119.3 134.7 151.9 168.2 185.3 201.3 219.1 233.3 254.6 272.1 290.7 291.0 291.3

10"

Row Space

101.6 110.2 120.5 129.5 139.1 146.8 154.3 184.5 164.5 168.3

95.3 103.5 113.1 121.6 130.5 137.8 144.9 173.2 154.5 158.0

76.4 82.9 90.6 97.4 104.6 110.4 116.1 138.8 123.8 126.6

104.8 113.8 122.8 132.3 140.0 149.4 159.0 159.8 160.3

98.4 106.8 115.3 124.2 131.5 140.2 149.3 150.0 150.5

78.8 85.6 92.4 99.5 105.3 112.3 119.6 120.2 120.6

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

25

Great Plains Mfg., Inc.

Section 3 Adjustments

Setting number 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Sunflowers

Drive Type 1

(Based on

28#/bu)

Hard Red

Winter Wheat

Drive Type 1

(Based on

64#/bu)

Hard Red

Winter Wheat

Drive Type 2

(Based on

64#/bu)

0.0 0.0 1.7 3.5 5.1 7.0 8.9 10.8 12.8 14.9 16.9 18.8 20.8 22.9 24.8 26.7 28.5 30.1 32.1 33.0 34.0

7.5"

0.0 0.0 1.6 3.3 4.8 6.5 8.4 10.1 12.1 14.0 15.9 17.6 19.6 21.5 23.3 25.0 26.8 28.3 30.1 30.9 31.9

8"

0.0 0.0 1.3 2.7 3.9 5.2 6.7 8.1 9.7 11.2 12.7 14.1 15.7 17.2 18.7 20.1 21.4 22.7 24.1 24.8 25.6

10"

Row Space

0.0 5.1 8.9 12.4 16.1 20.2 23.3 28.4 32.7 37.2 42.6 46.8 51.8 57.1 61.9 66.8 72.0 77.3 82.6 83.7 83.8

7.5"

0.0 4.8 8.4 11.6 15.1 19.0 21.9 26.7 30.7 34.9 40.0 44.0 48.7 53.6 58.1 62.7 67.6 72.6 77.6 78.6 78.7

8"

0.0 3.8 6.7 9.3 12.1 15.2 17.5 21.4 24.6 28.0 32.0 35.2 39.0 42.9 46.6 50.2 54.2. 58.1 62.1 63.0 63.0

10"

Row Space

0.0 10.5 18.3 25.4 33.0 41.5 48.0 58.4 67.3 76.5 87.6 96.3

7.5"

0.0 9.8 17.2 23.9 31.0 39.0 45.0 54.8 63.2 71.8 82.2 90.4

8"

0.0 7.9 13.8 19.1 24.8 31.2 36.1 43.9 50.6 57.5 65.9 72.4

10"

Row Space

106.6 117.3 127.3 137.3 148.1 158.9 169.8 172.1 172.2

100.0 110.2 119.5 128.9 139.0 149.1 159.4 161.5 161.7

80.1 88.2 95.8 103.3 111.4 119.5 127.7 129.4 129.5

Wheat Grass

Drive Type 1

(Based on

23#/bu)

Soft Wheat

Cardinal-Ba

Drive Type 2

(Based on

58#/bu)

Soft Wheat­Cardinal-Ba

Drive Type 3

(Based on

58#/bu)

0.0 0.8 1.8 2.5 3.5 4.3 5.0 6.2 7.0 8.1 9.0 9.9 11.0 11.9 12.9 14.0 15.0 16.1 15.5 17.4 17.6

7.5"

0.0 0.7 1.7 2.4 3.3 4.0 4.7 5.8 6.6 7.6 8.5 9.3 10.3 11.2 12.1 13.2 14.0 15.1 14.5 16.3 16.6

8"

0.0 0.6 1.3 1.9 2.7 3.2 3.8 4.7 5.3 6.1 6.8 7.5 8.2 9.0 9.7 10.5 11.2 12.1 11.6 13.1 13.3

10"

Row Space

0.0 6.6 12.8 19.2 27.0 34.7 42.8 52.0 61.2 70.8 80.5 90.0 99.0

7.5"

0.0 6.3 12.1 18.2 25.6 32.9 40.5 49.3 58.0 67.1 76.3 85.3 93.8

8"

0.0 4.9 9.4 14.2 19.9 25.6 31.5 38.3 45.1 52.2 59.3 66.4 73.0

10"

Row Space

1.2 9.7 18.7 27.9 37.4 48.5 61.7 74.0 87.9

7.5"

1.1 9.2 17.8 26.4 35.5 45.9 58.5 70.1 83.3

8"

0.9 7.1 13.8 20.6 27.6 35.7 45.5 54.5 64.8

10"

Row Space

101.9 116.5 131.9 146.3 161.0 175.6 189.8 205.6 221.0 232.3 239.7 224.2

96.5 110.3 124.9 138.6 152.5 166.4 179.8 194.8 209.4 220.0 227.1 231.3

75.1 85.8 97.2 107.8 118.6 129.4 139.9 151.5 162.8 171.1 176.6 179.9

108.3 118.3 127.6 137.5 147.0 155.2 155.3 155.5

102.6 112.1 120.9 130.3 139.3 147.1 147.2 147.3

79.8 87.2 94.0 101.3 108.3 114.4 114.5 114.6

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

26

Great Plains Mfg., Inc.

Section 3 Adjustments

Small Seeds Attachment Seed Rate Charts (Pounds per acre)

Setting number 10 20 30 40 50 60 70 80 90 100

Alfalfa;

Red, Alsike&

Ladino Clo-

vers

7.5" 3 6 10 15.5 19 23 29 33.5 39 43
8" 2.5 5.5 9 14 17.5 21 26 31 36 39.5

10" 2.25 5 7.5 12 14.5 17 21.5 25 29 32

Row Space

Lespedeza

Hulled,

Serecia, Crim-

son, Clover;

Birdsfoot Tre-

foil

Lespedeza

Unhulled

Timothy; Red

Top, Sand

& Love Grass

Kentucky

Bluegrass;

Fescue

Reed Canary

German Millet

7.5" 2.5 5.5 8.5 16.5 20.5 25.5 32 36.5 45.5 50.5

8" 2.25 5 8 15 19 23 29.5 33.5 41.5 46.5

Row Space

10" 2 4 6.5 12.5 15.5 19 24 27.5 34 38

7.5" 1.75 3.5 5.5 9.5 12 14.5 16.5 19 21.5 24

8" 1.5 3 5 8.5 11 13 15 17.5 19.5 22

Row Space

10"

1.25 2.5 4 7 9 10.5 12.5 14.5 16 18

7.5" 1.75 3.5 5 7.5 9.5 11.5 14 16 18.5 20.5

8" 1.5 3 4.5 6.5 8.5 10.5 12.5 14.5 17 19

Row Space

10" 1.25 2.5 3.5 5.5 7 8.5 10.5 12 14 15.5

7.5" -- 1.5 2.25 3.5 4.25 5 6 7 8 8.5

8" -- 1.25 2 3 4 4.5 5.5 6.5 7 8

Row Space

10"

-- 1 1.5 2.5 3 3.5 4.5 5 6 6.5

7.5" 1 2.25 35 5 6.5 8 9.5 10.5 12 13
8" -- 2 3 4.5 5.5 7 8.5 10 11 12

10" -- 1.75 2.5 3.5 4.5 6 7 8 9 10

Row Space

7.5" 2.25 4.5 8.5 13 16.5 19.5 24 28.5 33 37
8" 2 4 7.5 12 15 18 22 26 30.5 34

10" 1.75 3.5 6 10 12 14.5 18 21 25 28

Row Space

Sudan Grass

7.5" 2.25 4.5 8.5 13 16.5 18 25 29.5 34.5 38.5
8" 2 4 7.5 12 15 19 23 27 32 35.5

10" .175 3.5 6 10 12 15.5 19 22 26 29

Row Space

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

27

Section 3 Adjustments

Great Plains Mfg., Inc.

Gauge-Wheel Drive Adjustment

Inside both gauge-wheel arms are two idler sprockets as
shown in Figure 3-10. Adjust these sprockets after the first
100 acres of drill use and at the beginning of each season.

To adjust, move the front idler sprocket on the top of the
chain down by loosening the jam nut and screwing in the
adjustment stud, located on top of the wheel arm. Do not
over tighten chains, causing excessive wear. Retighten
the jam nut to maintain the idler position.

Figure 3-10

Gauge-Wheel Idler-Sprockets Adjustment

Disk Scraper Adjustment

To keep the double-disk openers turning freely, dirt scrap­er are mounted between the disks to clean as the disks ro­tate. As field conditions vary, you may need to adjust the
scrapers. In damp conditions, the scrapersmay need to be
lowered. If openers are not turning freely, the scrapers
may need to be raised. To adjust scrapers, loosen the 3/8­inch mounting bolt and move scraper as needed.

NOTE: The optional Air Design® disk scrapers are self­adjusting.

Marker Adjustments

Marker Chain

There are two marker chain adjustments–lifting slack and
folding slack. These adjustments should be performed
during initial marker assembly, but additional adjustment
may be needed. The adjustments are interrelated and
should be made in the following order:

1. Lifting Slack. Start with the marker in the unfolded
position. Back the full-threaded adjustment bolt down
(see Figure 3-11) until the head extends as little as
possible. Slowly fold the marker, observing the motion
of the disk. If the marker disk slides across the ground
more than about one foot before the chain and linkage
lifts it up, the chain is too slack. Tighten the chain by
moving the clevis one or two links at the inside end of
the chain. Recheck by repeating this process.

If the chain does not have enough slack when the
marker is in the unfolded field position, the chain will
prevent the end of the marker from dropping down to
follow a depression in the field. Correct this condition
by moving the utility clevis one or two links, giving the
chain more slack.

2. Folding Slack. After the adjustmentsin stepone have
been completed, fold the marker. The adjustment bolt
is provided to take the slack out of the chain while the
marker is in the folded position. Extend this bolt until
the slack is out of the chain. Lock the bolt in this posi­tion by tightening the nuts on either side of the upright
channel on the first marker section.

Adjustment Bolt

Leveling Adjustment

Equal coulter depth across the implement can only be
maintained if all frame sections are level. Periodic frame
leveling should not be necessary. If your drill appears to lift
or plant unevenly, check the following before re-leveling
the drill.

First, make sure the tongue is level to the ground while
running in the field. Refer to Hitch Height Adjustment,
“Drill Preparation and Setup,” page 10.

Second, check the field-lift cylinders. Be sure they are
properly bled, operating correctly, and do not have internal
oil leaks.

If leveling is necessary, follow instructions under Frame

Leveling Adjustment, page 13.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

28

IMPORTANT: To prevent marker damage, the marker
arm is attached to the marker body with a 7/16-inch,
grade 5 shear bolt. See Figure 3-11. If it breaks, you
must replace it with a grade 5 bolt. The bolt is Great
Plains part number 802-234C.

Full-Threaded Adjustment Bolt

Figure 3-11

Shear Bolt

13008

Great Plains Mfg., Inc.

Section 3 Adjustments

Disk Adjustment

The aggressiveness and the mark left by the disk may be
changed by two methods:

1. Angle of Cut. Refer to Figure 3-12. To change the an­gle of cut, loosen the two 1/2-inch bolts holding the
disk assembly. Rotate the disk assembly as desired.

16403

Figure 3-13

Direction of Cut Reversed

11757

Figure 3-12

Disk Angle

2. Direction of Cut. The disk may be mounted to throw
dirt in or out for different marks in different soil condi­tions. Refer to Figure 3-13. To change the direction of
cut:

a. Reverse the disk by removing the four lug bolts on

the disk hub. Remount the depth band and lug
bolts.

b. Turn the entire disk assembly by removing the two

1/2-inch bolts and turning the assembly one-half
turn. Reinstall the 1/2-inch bolts and set the disk
angle as desired.

Folding Speed

The dual markers are equipped with hex-head screws to
adjust folding speed. The screws are on the sequence­valve body as shown in Figure 3-14. There are two
screws–one controls folding speed (1), the other controls
unfolding speed (2). Turn the adjustment screws clock­wise for slower folding or counterclockwise for faster fold­ing. Adjust to a safe speed. Excessive speed could
damage the markers and void the warranty.

14048

Figure 3-14

Speed Adjustment, Dual Markers

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

29

Section 3 Adjustments

Great Plains Mfg., Inc.

The single-marker system is equipped with a needle valve
in the hydraulic hose line at the rod end of the marker cyl­inder as shown in Figure 3-15. Turn the adjustment knob
clockwise to decrease or counterclockwise to increase
folding speed. Adjustments should be made for safe fold­ing speeds at the tractor operating speed. Excessive fold­ing speed could damage marker and may void warranty.

Faster

15625

Slower

Needle Valve

arm (2) up as high as possible and wrap chain around
arm. Hook other end of chain in a link. Leave no slack in
chain; secure wheel arm in its highest position.

1

2

16856

Figure 3-16

Seed-Lok Lock Up, 00 and 10 Series Openers

To lock up firming wheels on 20 series openers, remove
lock-up handle (1) from its keeper under drill walkboard.
Insert handle through hole in opener body as shown in
Figure 3-17. Hook handle around firming wheel (2). Pull
up on wheel until arm is secured by self-loading lock-up
spring (3).

To unlock firming wheels on 20 series openers, use lock­up handle to lift firming wheel. With your free hand, reach
into opener body and unlatch spring from wheel arm.

1

Figure 3-15

Speed Adjustment, Single Marker

Coulter Tines

Optional coulter tines are available for the front-mounted
coulters. In high-residue fields, the tines will help guide
residue under the coulters and openers to prevent plug­ging. Under normal conditions these tines should not be
needed. Remove or install the tines as field condition war­rant.

Seed-Lok

Optional Seed-Lok firming wheels provide additional
seed-to-soil contact. The wheels are spring loaded and do
not require adjusting. In some wet and sticky conditions
the wheels may accumulate soil.

To lock up firming wheels on 00 and 10 series openers, re­fer to Figure 3-16. Hook one end of chain in the opener­body hole just above the wheel arm (1). Pull firming-wheel

3

2

17285

Figure 3-17

Seed-Lok Lock Up, 20 Series Opener

NOTE: Openers in Figure 3-16 and Figure 3-17 are disas­sembled for illustrative purposes only.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

30

Great Plains Mfg., Inc.

Section 4 Troubleshooting

Section 4 Troubleshooting

Problem Solution

Uneven seed spacing or stand

Opener disks not turning freely

Actual seeding rate is different than
desired

Check for plugging in seed cups.

Check for plugging in seed tubes.

Reduce ground speed.

Check that opener disks turn freely.

Shift speed-change gearbox to a faster drive type and adjust the seed-rate handle
to a lower number.

Increase spring pressure so openers penetrate low spots. Refer to Opener Adjust-
ments, “Adjustments,” page 21.

Check for trash or mud build-up on Seed-Lok® wheels.

Check for trash or mud build-up on disk scraper. Re-adjust scraper if necessary.
Refer to Disk Scraper Adjustment, “Adjustment,” page 28.

Check if disk scraper is adjusted too tight, restricting disk movement. Refer to Disk
Scraper Adjustment, “Adjustment,” page 28.

Check disk bearings.

Check opener frame for possible damage.

If opener disks turn freely by hand but not in field, reduce down pressure on
opener. Refer to Opener Adjustments, “Adjustments,” page 21.

Check if press wheels are adjusted too high. Refer to Opener Adjustments,
“Adjustments,” page 21.

Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appendix,”
page 44.

Check gauge-wheel size. Proper size is 11L x 15 8-ply.

Clean seed-treatment build up out of seed cups and shafts.

Refer to Setting the Seeding Rate, “Adjustments,” page 21, for instructions on
calculating seeding rate.

Excessive seed cracking

Acremeter does not measure accurately

Uneven seeding depth

2/28/08

Use slower drive type on gearbox and adjust seed-rate handle to a higher number.

Position seed-cup doors to a lower notch. Refer to Setting the Seeding Rate,
“Adjustment,” page 22.

Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appendix,”
page 44.

Check gauge-wheel tire size. Proper size is 11L x 15 8-ply.

Check seeding operation for excessive overlap or gaps between passes.

Consider soil conditions; loose soil and slippage will cause variations in acres reg­istered.

Check that your acremeter is for your drill width. Refer to the parts manual.

Check if drill tongue is running level with ground. Refer to Hitch Height Adjust-
ment, “Drill Preparation and Setup,” page 10.

Check if drill frame is level. Refer to Leveling Adjustment, “Adjustments,” page

28.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

31

Section 4 Troubleshooting

Problem Solution

Great Plains Mfg., Inc.

Press wheel not compacting
the soil as desired

Grain box not emptying evenly

Press wheel or openers plugging

Raising and lowering drill is rough or
uneven.

Reset press-wheel depth. Refer to Opener Adjustments,“Adjustments,” page 21.

Re-adjust press wheel depth to match coulter depth.

Increase down-pressure on disk openers. Refer to Opener Adjustments, “Adjust-
ments,” page 21.

Check that speed-change gearbox and seed-rate handles are set the same on
each drill box.

Certain models do not have the same number of seed cups between each divider
of bulkhead. The section with the larger number of cups will empty sooner.

Check soil conditions–may be too damp.

Decrease opener down pressure. See Opener Adjustment, “Adjustments,” page

21.

Do not back up with openers in the ground.

Do not stop and allow drill to roll backward with openers in ground.

Check optional Seed-Lok® wheels. Lock up firming wheels if soil conditions are
too wet. Refer to Seed-Lok, “Adjustments,” page 30.

Install coulter trash tines. Refer to Coulter Tines, “Adjustments,” page 28.

Lubricate wheel-arm pivot casting. Refer to Lubrication,“Maintenance and Lubri-
cation,” page 35.

Check hydraulic fittings for leaks.

Rephase the field-lift cylinders. Refer to Lifting the Drill in the Field, “Operating

Instructions,” page 17.

Seed cup sprockets locked up or twisted
feed drive shaft

Coulters not going deep enough

Coulters and drill going too deep

Openers and/or coulters plugging in
adverse conditions

Actual seeding rate is different than
desired

Check that rephasing cylinders have been properly bleed. Refer to Bleed Field-Lift
Hydraulics, “Drill Preparation and Setup,” page 11.

Check for foreign material lodged in one or more seed-cup sprockets.

Inspect seed-cups for dried liquid insecticide. Remove build-up by disassembling
each seed cup and scraping the foreign substance from the turning surfaces.

Check weight charts on page 20 and add weight if necessary.

Change depth stop to lower coulters. Refer to Coulter Adjustments, “Adjust-
ments,” page 19.

Check weight charts on page 20 and remove weight if necessary.

Set press wheels to a shallower depth. Refer to Opener Adjustments, “Adjust-
ments,” page 21.

Change depth stop to raise coulters. Refer to Coulter Adjustments, “Adjust-
ments,” page 19.

Drill at a slight angle to the rows.

Install coulter trash tines. Refer Coulter Tines, “Adjustments” page 28.

Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appendix,”
page 44.

Check gauge wheel size. Proper size is 11L x 15" 8-ply.

Seed treatment will affect seeding rate if the chemicals build up in seed cup.
Unless cleaned regularly, this build-up can cause breakage of the seed shaft.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

32

Great Plains Mfg., Inc.

Section 4 Troubleshooting

Problem Solution

Hydraulic marker
functioning improperly

Marker disk-blade does not mark

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

Check that the chain on the folding marker is slack when the marker is both fully
folded and unfolded. Add chain slack as necessary. Refer to Marker Adjustments,
“Adjustments,” page 28.

Check tractor hydraulic oil level.

Check all bolts and fasteners.

Check if needle valve is plugged; open valve, cycle markers, and reset the needle
valve if necessary.

Check that switches on control console are set properly. Refer to Field Operation,
“Operating Instructions,” page 17.

Check if the marker folding linkage and chain have enough slack to allow the
marker disk to drop in low spots. Maximum down float should be limited by the
slots at the rod end of the marker cylinder–not by the chain. Add chain slack as
necessary. Refer to Marker Adjustments, “Adjustments,” page 28.

Reverse blade to pull dirt in or throw dirt out depending on soil conditions. Refer to
Disk Adjustment, “Adjustment,” page 29.

An optional smooth blade is available through your Great Plains dealer.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

33

Section 5 Maintenance and Lubrication

Section 5 Maintenance and Lubrication

Great Plains Mfg., Inc.

General Maintenance

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

Always turn off and remove the tractor key before making
any adjustments or performing maintenance. Securely
block tires before working under or around drill.

!

DANGER!

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

!

WARNING!

You may be severely injured or killed by being crushed from a
falling implement. Always have transport locks in place and
frame sufficiently blocked up when working on implement.

!

WARNING!

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

7. Replace any worn, damaged or illegible safety labels
at once. Refer to Safety Labels,“Important Safety In-
formation,” page 5, for correct label placement. Ob­tain new labels from your Great Plains dealer.

Storage

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

1. If you store the drill in the unfolded position, unpin and
fully retract the fold cylinders to prevent rust.

2. Clean the drill as necessary. Be sure that the seed
boxes are cleaned completely before storing.

3. Disconnect seed hoses from openers. Premature
hose damage will occur if drill is stored with hoses
connected.

4. Adjust idlers to remove excess slack from chains. Ad­just gauge-wheel arm drive chain as explained under
Gauge-Wheel Drive Adjustment,“Adjustments,”
page 28. Clean and use chain lube on all roller chains
as needed.

5. Lubricate the drill at all points indicated under Lubrica-
tion, this page. Be sure the seed-cup drive sprocket is
oiled before the drill is stored.

6. Check all bolts, pins, fitting and hoses. Tighten, repair
or replace parts as needed.

7. Check all moving and soil-contact parts for wear or
damage. Make notes of any parts needing repair.

8. Use Great Plains touch-up paint to cover scratches,
chips and worn areas to prevent rust.

1. After using your drill for several hours, check all bolts
to be sure they are tight. Periodically check and se­cure all bolts, pins and fasteners. Tighten as specified
on Torque Values Chart,“Appendix,” page 44.

2. Clean or replace any fittings that will not take grease.
Lubricate the drill as noted under Lubrication,“Main-
tenance and Lubrication,” this page.

3. Clean nozzles on optional rear-mount boom with a low
pressure (less than 30 psi) air hose. Periodically re­place nozzles. Always wear rubber gloves when mak­ing repairs or adjustments.

4. Adjust idlers to remove excess slack from chains. Ad­just gauge-wheel arm drive chain as explained under
Gauge-Wheel Drive Adjustment,“Adjustments,”
page 28. Clean and use chain lube on all roller chains
as needed.

5. Always maintain correct tire pressure. Refer to Tire In-
flation Chart,“Appendix,” page 44.

6. Inspect hydraulic hoses for cuts, cracks and aging.
Check fittings and cylinders for evidence of leaks.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

34

Great Plains Mfg., Inc.

Section 5 Maintenance and Lubrication

Lubrication

Lubrication

Legend

Multipurpose
spray lube

12920

Multipurpose

grease lube

Gauge-Wheel-Arm Pivot Castings

The grease fittings are in the three-bolt cast bearings at
the end of each wheel arm pivot tube.

Type of Lubrication: Grease

Multipurpose
oil lube

50

Intervals at which
lubrication is required

8

8

12921

12922

Transport-Axle Assembly

Grease fittings on both sides of the three bearings
shown on each end of rockshaft–12 fittings total. (Rock­shaft is inside and above the dual transport tires.)

Type of Lubrication: Grease

8

Clutches

Two zerks on each clutch.

Type of Lubrication: Grease

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

35

Section 5 Maintenance and Lubrication

Great Plains Mfg., Inc.

8

Coulter-Arm Pivots

Zerks are on central grease banks–two banks on each
box.

14192

12924

Type of Lubrication: Grease

Seasonally

Coulter Hub Bearings

Type of Lubrication: Grease

Seasonally

Wheel Bearings

Repack and check seals on transport and gauge wheels.

12926

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

36

Type of Lubrication: Grease

Great Plains Mfg., Inc.

Section 5 Maintenance and Lubrication

12126

10

Seed-Cup-Drive Sprocket

Oil sprocket hub in its square bore. Squirt oil on the
square seed-cup shaft and move seed-rate handle back
and forth to get oil back into the square.

Type of Lubrication: Oil

12227

12167

As

Required

Drive-Train Roller Chain

Type of Lubrication: Chain Lube

Speed-Change Box

The speed-change gearbox is lubricated and sealed at
the factory. Under normal conditions, it does not require
maintenance or lubrication.

If you open the gearbox for repair, repack all gears and
around the shaft bearings with least 7 ounces of lithium­based, wheel-bearing grease.

It is important to keep moisture and dirt out of the gear­box. Inspect the rubber seals on the gearbox drive and
shifter shafts. Replace seals if necessary.

Before bolting them back together, spread a very thin
coat of anaerobic sealant (such as Loctite 525) on the
gearcase-mating surfaces.

2/28/08

IMPORTANT: Use sealant sparingly! Excess sealant
may squeeze off surface and lock bearings or gears.

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

37

Section 5 Maintenance and Lubrication

Optional Attachments Lubrication

12436

Great Plains Mfg., Inc.

25

Marker Hinges

Type of Lubrication: Grease

13008

2-3 Years

Marker-Disk Bearings

If the grease seal cap is damaged or missing, disassemble
and clean the hub. Repack with grease and install a new
seal or grease cap.

Type of Lubrication: Multipurpose Grease

12227

13933

As

Required

Gauge-Wheel-to-Agitator Chains

Type of Lubrication: Chain Lube

15

Electric-Clutch-Drive Chain

Type of Lubrication: Chain Lube

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

38

Great Plains Mfg., Inc.

Section 6 Options

Section 6 Options

12924

Coulter Tines

The coulters on your implement can be equipped with op­tional trash tines. Under most conditions, these tines will
not be needed. In high-residue fields, the tines will help
guide the residue under the coulters and openers to pre­vent plugging.

To order tines, contact your Great Plains dealer. Refer to
the table below for the correct tine package for your drill.

Drill Size Coulter Tine Part Number

24-ft., 7 1/2-in. Rows 149-717A

24-ft., 8-in. Rows 149-718A

24-ft., 10-in. Rows 149-719A

30-ft., 7 1/2-in. Rows 149-714A

30-ft., 8-in. Rows 149-715A

30-ft., 10-in. Rows 149-716A

13011

Weight Brackets

If more weight is required for coulters to penetrate soil,
weight bracket kits are available. Each kit contains two
weight brackets–one for each box frame. The weight brack­ets hold several styles of suitcase weights commonly avail­able through tractor dealers, including John Deere, CASE,
International Harvester and CASE-IH.

For information on how additional weights will affect seed­ing depth, refer to Weights,“Adjustments,” page 19.

To order weight brackets, contact your Great Plains dealer.
Refer to the table below for the correct brackets for your
drill.

Drill Size Weight Bracket Kit Part Number

24-ft. Drills 197-112A

30-ft. Drills 197-110A

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

39

Section 6 Options

13008

Great Plains Mfg., Inc.

Markers

Hydraulically operated no-till markers are available. The
units have a cast hub, tapered roller bearings and a bolt­on notched blade to cut though heavy residue, leaving a
line for you to follow on the next field pass. Markers are
sold as either a single or dual units. Dual markers are
equipped with a sequence valve for easy operation.

For information on how to operate the markers, refer to
Marker Operation,“Operating Instructions,” page 17.
For information on how to adjust the markers, refer to
Marker Adjustment,“Adjustments,” page 28.

To order markers, contact your Great Plains dealer. Refer
to the table below for the correct marker package for your
drill.

Marker Package Part Number

24-ft. 2-Section No-Till Left-Hand Flat-Fold Marker 113-498A

24-ft. 2-Section No-Till Dual Flat-Fold Markers 113-499A

30-ft. 2-Section No-Till Left-Hand Flat-Fold Marker 113-500A

30-ft. 2-Section No-Till Dual Flat-Fold Markers 113-501A

13734

Small Seeds Attachment

The small-seeds attachment delivers the smallest seeds
evenly and gently. With a Y-tube, small seeds are placed
through the opener seed tube. Otherwise, seeds are
placed directly in front of the press wheel. The attachment
holds 0.24 bushels per foot.

For setting the seeding rate on the attachment, refer to
Small Seeds Attachment Adjustment, “Adjustments,”
page 22.

To order the small seeds attachment, contact your Great
Plains dealer. Refer to the table below for the correct part
number for your drill.

Attachment Package Par t Number

Drill Size With Y-Tube Without Y-Tube

24-ft., 7 1/2-in. Rows 133-024A 133-123A

24-ft., 8-in. Rows 133-026A 133-025A

24-ft., 10-in. Rows 133-128A 133-127A

30-ft., 7 1/2-in. Rows 133-017A 133-018A

30-ft., 8-in. Rows 133-020A 133-019A

30-ft., 10-in. Rows 133-022A 133-021A

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

40

Great Plains Mfg., Inc.

Section 6 Options

13933

Electric Clutches

A mechanical jaw clutch turns seeding on and off as the
drill is raised and lowered in the field. Optional electric
clutches allow you to turn seeding off while the drill is low­ered. A clutch for each drive shaft allows you to control
each drill box independently.

For information on how to operate the clutches, refer to
Electric Clutch Operation,“Operating Instructions,”
page 17.

To order the electric clutch option, contact your Great
Plains dealer.

Electric Clutch Package Part Number

Electric Clutch Package, Field 197-104A

13178

Shaft Monitors

The optional 2-channel shaft monitor is an electronic mon­itoring system to detect when seed cup shafts stop turn­ing. If a shaft stops for more than 20 seconds, an alarm
sounds and a warning light designates the failed shaft.

For information on how to operate the shaft monitors, refer
to Shaft Monitor Operation,“Operating Instructions,”
page 18.

To order shaft monitors, contact your Great Plains dealer.

Monitor Bundle Part Number

Shaft Monitor Package 197-106A

Rear Mount Boom

The drill boom mounts under the walkboard and allows
you to apply liquid herbicides or pesticides behind the drill
press wheels. The kit includes mounting hardware, boom
plumbing and nozzle bodies for 20-inch spacing. Tractor
tanks, pump, plumbing to the drill and nozzles are re­quired.

To order the boom, contact your Great Plains dealer.

17996

2/28/08

Package Part Number

116-195A 24-Foot Two-Section No-Till Spray Boom

116-194A 30-Foot Two Section No-Till Spray Boom

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

41

Section 6 Options

12682

Great Plains Mfg., Inc.

Seed Box Agitator

An optional agitator can be added to the main seed boxes.
The agitator is designed to stir the seed directly above the
metering cups. The agitator helps prevent bridging of light,
fluffy seeds and separate individual soybeans that be­come sticky from inoculant.

If your drill is equipped with a small seeds or fertilizer at­tachment, the agitator is available without a drive.

To order the agitator, contact your Great Plains dealer. Re­fer to the table below for the correct part for your drill.

Agitator Part Number

Drill Size With Drive Without Drive

24-ft., 7 1/2-in. Rows 118-459A 118-465A

24-ft., 8-in. Rows 118-460A 118-466A

24-ft., 10-in. Rows 118-461A 118-467A

30-ft., 7 1/2-in. Rows 118-456A 118-462A

30-ft., 8-in. Rows 118-457A 118-463A

30-ft., 10-in. Rows 118-458A 118-464A

12677

Seed-Lok® Firming Wheels

The optional, spring-loaded Seed-Lok firming wheel
presses the seed directly into the bottom of the seed bed.
The Seed-Lok option provides more even seed emer­gence since seeds are planted and firmed at the same
depth.

To order Seed-Lok firming wheels, contact your Great
Plains dealer.

See-Lok Bundle Part Number

Solid Stand Removable 5-in. Seed-Lok Assembly 122-193K

Seed-Cup Plugs

Seed-cup plugs are available to block off individual rows
when you want wider row spacing. These plugs are in­stalled by pushing them into the seed-cup openings on the
desired rows.

To order seed-cup plugs, contact your Great Plains dealer.

Seed Cup Plugs Package Part Number

1 3/4-in. Wide Seed-Cup Plug 817-087C

15642

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

42

Great Plains Mfg., Inc.

Section 7 Specifications and Capacities

Section 7 Specifications and Capacities

Drill Row

Spacing

7.5" 38 17,400

24’

30’

8” 36 17,100

10" 28 16,600

7.5" 48 20,200

8” 44 19,600

10" 36 19,100

Number

of Openers

Transport Width

Working Width

Box Length

Dual Transport Tire Size

Gauge Wheel Tire Size:

Box Capacity:

Negative Tongue Weight:

NOTE: All tires are warranted by the original manufacturer of the
tire. Tire warranty information can be found in the brochures in-

Drill

Weight*

cluded with your Operator’s and Parts Manuals or online at the
manufacturer’s websites. For service assistance or information,
contact your nearest Authorized Farm Tire Retailer.

Manufacturer Website

Titan www.titan-intl.com
Goodyear www.goodyearag.com
Firestone www.firestoneag.com

17 ft., 1 in.

24 or 30 ft.

12 or 15 ft.

12.5L x 15 20-Ply

11L x 15 8-Ply

24-ft. Drill: 48 bushels

30 ft. Drill: 60.6 bushels

24-ft. Drill, empty: 2650 lb.

24-ft. Drill, loaded: 3800 lb.

30-ft. Drill, empty: 2750 lb.

30-ft. Drill, loaded: 4000 lb.

* Empty

14529

2/28/08

Specification Drawing

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

43

Appendix

Appendix

Torque Values Chart for Common Bolt Sizes

Great Plains Mfg., Inc.

Bolt Head Identification

Bolt Size

(Inches)

1

in-tpi

1/4" - 20 7.4 5.6 11 8 16 12 M 5 X 0.8 436597

1/4" - 28 8.5 6 13 10 18 14 M 6 X 1 7 5 11 8 15 11

5/16 - 18 15 11 24 17 33 25 M 8 X 1.25 17 12 26 19 36 27

5/16" - 24 17 13 26 19 37 27 M 8 X 1 18 13 28 21 39 29

3/8" - 16 27 20 42 31 59 44 M10 X 1.5 33 24 52 39 72 53

3/8" - 24 31 22 47 35 67 49 M10 X 0.75 39 29 61 45 85 62

7/16" - 14 43 32 67 49 95 70 M12 X 1.75 58 42 91 67 125 93

7/16" - 20 49 36 75 55 105 78 M12 X 1.5 60 44 95 70 130 97

1/2" - 13 66 49 105 76 145 105 M12 X 1 90 66 105 77 145 105

1/2" - 20 75 55 115 85 165 120 M14 X 2 92 68 145 105 200 150

9/16" - 12 95 70 150 110 210 155 M14 X 1.5 99 73 155 115 215 160

9/16" - 18 105 79 165 120 235 170 M16 X 2 145 105 225 165 315 230

5/8" - 11 130 97 205 150 285 210 M16 X 1.5 155 115 240 180 335 245

5/8" - 18 150 110 230 170 325 240 M18 X 2.5 195 145 310 230 405 300

3/4" - 10 235 170 360 265 510 375 M18 X 1.5 220 165 350 260 485 355

3/4" - 16 260 190 405 295 570 420 M20 X 2.5 280 205 440 325 610 450

7/8" - 9 225 165 585 430 820 605 M20 X 1.5 310 230 650 480 900 665

7/8" - 14 250 185 640 475 905 670 M24 X 3 480 355 760 560 1050 780

1" - 8 340 250 875 645 1230 910 M24 X 2 525 390 830 610 1150 845

1" - 12 370 275 955 705 1350 995 M30 X 3.5 960 705 1510 1120 2100 1550

1-1/8" - 7 480 355 1080 795 1750 1290 M30 X 2 1060 785 1680 1240 2320 1710

1 1/8" - 12 540 395 1210 890 1960 1440 M36 X 3.5 1730 1270 2650 1950 3660 2700

1 1/4" - 7 680 500 1520 1120 2460 1820 M36 X 2 1880 1380 2960 2190 4100 3220

1 1/4" - 12 750 555 1680 1240 2730 2010

1 3/8" - 6 890 655 1990 1470 3230 2380

1 3/8" - 12 1010 745 2270 1670 3680 2710

1 1/2" - 6 1180 870 2640 1950 4290 3160

1 1/2" - 12 1330 980 2970 2190 4820 3560

Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.

Grade 2 Grade 5

N · m2ft-lb3N · m ft-lb N · m ft-lb mm x pitch

Grade 8

Bolt Size

(Metric)

4

N · m ft-lb N · m ft-lb N · m ft-lb

1

in-tpi = nominal thread dia.in inches-threads per inch

2

N· m = newton-meters

3

ft-lb= foot pounds

4

mm x pitch = nominal thread dia. in millimeters x thread pitch

Bolt Head Identification

5.8 8.8 10.9

Class 5.8 Class 8.8 Class 10.9

Tire Inflation Chart

Tire Size Inflation PSI Tire Size Inflation PSI

7.50 x 20" 4-Ply Drill Rib 28 11L x 15" 6-Ply Rib Implement 28

9.0 x 22.5 10-Ply Highway Service 70 70 11L x 15" 8-Ply Rib Implement 36

9.0 x 24" 8-Ply Rib Implement 40 12.5L x 15" 8-Ply Rib Implement 36

9.5L x 15" 6-Ply Rib Implement 32 12.5L x 15" 10-Ply Rib Implement 44

9.5L x 15" 8-Ply Rib Implement 44 12.5L x 15" 20-Ply Rib Implement 90

9.5L x 15" 12-Ply Rib Implement 60 41 x 15" x 18 - 22-Ply Rib Implement 44

265/70B16.5 NHS Skid Steer 60 395/55B16.5 NHS Skid Steer 60

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A 2/28/08

44

Great Plains Mfg., Inc.

Appendix

Warranty

Great Plains Manufacturing, Incorporated warrants to the original pur­chaser that this seeding equipment will be free from defects in material
and workmanship for a period of one year from the date of original pur­chase when used as intended and under normal service and conditions
for personal use; 90 days for commercial or rental purposes. This War­ranty is limited to the replacement of any defective part by Great Plains
Manufacturing, Incorporated and the installation by the dealer of any
such replacement part. Great Plains reserves the right to inspect any
equipment or part which are claimed to have been defective in material
or workmanship.

This Warranty does not apply to any part or product which in Great
Plains’ judgement shall have been misused or damaged by accident or
lack of normal maintenance or care, or which has been repaired or al­tered in a way which adversely affects its performance or reliability, or
which has been used for a purpose for which the product is not de­signed. This Warranty shall not apply if the product is towed at a speed
in excess of 20 miles per hour.

Claims under this Warranty must be made to the dealer which originally
sold the product and all warranty adjustments must by made through
such dealer. Great Plains reserves the right to make changes in mate­rials or design of the product at any time without notice.

This Warranty shall not be interpreted to render Great Plains liable for
damages of any kind, direct, consequential, or contingent, to property.
Furthermore, Great Plains shall not be liable for damages resulting from
any cause beyond its reasonable control. This Warranty does not ex­tend to loss of crops, losses caused by harvest delays or any expense
or loss for labor, supplies, rental machinery or for any other reason.

No other warranty of any kind whatsoever, express or implied, is
made with respect to this sale; and all implied warranties of mer­chantability and fitness for a particular purpose which exceed
the obligations set forth in this written warranty are hereby dis­claimed and excluded from this sale.

This Warranty is not valid unless registered with Great Plains Manufac­turing, Incorporated within 10 days from the date of original purchase.

2/28/08

2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A

45

Great Plains Manufacturing, Inc.

Corporate Office: PO. Box 5060

Salina, Kansas 67402-5060 USA