GREAT PLAINS 2N-3020 User manual

Manufacturing, Inc.
www.greatplainsmfg.com
© Copyright 2019 Printed 4/30/19 196-164M-A
EN
Table of Contents Index
Table of Contents Index
ORIGINAL INSTRUCTIONS
Operator’s Manual
2N-2420 and 2N-3020 Two-Section Folding No-Till Drill
Model Serial No.
2N-2420 C1701+
2N-3020 D1977+
Read the operator manual entirely. When you see this symbol, the
subsequent instructions and warnings are serious - follow without
exception. Your life and the lives of others depend on it!
Illustrations may show optional equipment not supplied with standard unit or
may depict similar models where a topic is identical.

Table of Contents Index
Table of Contents Index
Machine Identification
Record your machine details in the log below. If you replace this manual, be sure to transfer this information to the new
manual.
If you, or the dealer, have added Options not originally ordered with the machine, or removed Options that were
originally ordered, the weights and measurements are no longer accurate for your machine. Update the record by
adding the machine weight and measurements on page 57 with the Option(s) weight and measurements.
Dealer Contact Information
Model Number
Serial Number
Machine Height
Machine Length
Machine Width
Machine Weight
Year of Construction
Delivery Date
First Operation
Accessories
Name:
Street:
City/State:
Telephone:
Email:
Dealer’s Customer
No.:
Dealer QRC
The QR Code (Quick Response) to the
left will take you to available dealers for
Great Plains products. Refer to the
Parts Manual QR Locater for detailed
instructions.
Manual Family QRC
The QR Code (Quick Response) to the
left will take you to this machine’s family
of manuals. Use your smart phone or
tablet to scan the QR Code with an
appropriate App to begin viewing.

2N-2420 and 2N-3020 Cover Index Table of Contents iii
4/30/19 Cover Index 196-164M-A
© Copyright 1999, 2005, 2008, 2015, 2016, 2017, 2019. 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.
Trademarks of Great Plains Manufacturing, Inc. include: AccuShot, Max-Chisel, Row-Pro,
Singulator Plus, Short Disk, Swath Command, Terra-Tine, Ultra-Chisel, and X-Press.
Registered Trademarks of Great Plains Manufacturing, Inc. include: Air-Pro, Clear-Shot, Discovator, Great Plains, Land Pride, MeterCone,
Nutri-Pro, Seed-Lok, Solid Stand, Terra-Guard, Turbo-Chisel, Turbo-Chopper, Turbo-Max, Turbo-Till, Ultra-Till, Whirlfilter, and Yield-Pro.
Brand and Product Names that appear and are owned by others are trademarks of their respective owners.
Printed in the United States of America
Table of Contents
Important Safety Information.................................................1
Safety Decals ....................................................................6
Introduction...........................................................................11
Description of Unit ...........................................................11
Intended Usage ........................................................11
Models Covered .......................................................11
Document Family .....................................................11
Using This Manual....................................................11
Definitions.................................................................11
Owner Assistance............................................................12
Further Assistance...........................................................12
Preparation and Setup .........................................................13
Hitch Height Adjustment ..................................................13
Installing Drill Control Console ........................................14
Bleeding Hydraulic Systems............................................14
Field-Lift Hydraulics..................................................14
Transport-Lock Hydraulics .......................................15
Raise-To-Fold Hydraulics.........................................15
Fold Hydraulics.........................................................16
Marker Hydraulics ....................................................17
Frame Leveling Adjustment.............................................18
Aligning Boxes..........................................................19
Operating Instructions .........................................................21
Pre-start Checklist ...........................................................21
Tractor Requirements...............................................21
Recommended Minimum Tractor Size 21
Minimum Towing Vehicle Weight .............................21
Hydraulics.................................................................21
Safety Lights.............................................................21
Hitching Tractor to Drill....................................................22
Operating Control Console ..............................................23
Folding the Drill................................................................23
Folding Harrow Attachment......................................23
Unfolding the Drill ............................................................24
Lifting the Drill in the Field........................................24
Field Operations .......................................................24
Opener Operation.....................................................24
Marker Operation .....................................................25
Shaft Monitor Operation 25
Electric Clutch Operation 25
Transporting ....................................................................25
Parking ............................................................................26
Adjustments.....................................................................27
No-Till Seeding ................................................................27
Coulter Adjustments ........................................................27
Hydraulic Depth Control ...........................................28
Weights 28
Weight Chart, 24-Foot Drill.......................................29
Weight Chart, 30-Foot Drill.......................................29
Coulter Springs ........................................................29
Coulter Down-Pressure Chart ..................................29
Individual Coulters....................................................30
Pull Cable Adjustments ...................................................31
Opener Adjustments........................................................32
Planting Depth of Openers.......................................32
Down-Pressure Springs ...........................................32
Press Wheels ...........................................................33
Setting the Seeding Rate ................................................33
Small Seeds Attachment..........................................35
Acremeter Operation .......................................................36
Gauge-Wheel Drive Adjustment......................................36
Seed Rate Charts (Pounds per Acre)..............................37
Small Seeds Attachment Seed Rate Charts (Pounds per
Acre)) ................................................................................................... 41
Disc Scraper Adjustment.................................................42
Leveling Adjustment ........................................................42
Marker Adjustments .................................................42
Marker Chain 42
Disc Adjustment ..............................................................43
Folding Speed .................................................................44
Coulter Tines ...................................................................45
Seed-Lok .........................................................................45
Troubleshooting ...................................................................46
Maintenance and Lubrication..............................................48
General Maintenance ......................................................48
Storage............................................................................48
Lubrication ............................................................................49
Options ..................................................................................53
Coulter Tines ...................................................................53
Weight Brackets ..............................................................53
Markers ...........................................................................54
Small Seeds Attachment .................................................54
Electric Clutches..............................................................55
Shaft Monitors .................................................................55
Rear Mount Boom ...........................................................55
Seed Box Agitator ...........................................................56
Seed-Lok Firming Wheels...............................................56
Seed-Cup Plugs ..............................................................56
Hitch Options............................................................56
Appendix A - Reference Information ..................................57

2N-2420 and 2N-3020 Cover Index Table of Contents iv
4/30/19 Cover Index 196-164M-A
Specifications and Capacities..........................................57
Tire Information ...............................................................57
Tire Inflation Chart....................................................57
Torque Values Chart .......................................................59

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 1
Important Safety Information
Look for Safety Symbol
The SAFETY ALERT SYMBOL indicates there is a
potential hazard to personal safety involved and extra
safety precaution must be taken. When you see this
symbol, be alert and carefully read the message that
follows it. In addition to design and configuration of
equipment, hazard control and accident prevention are
dependent upon the awareness, concern, prudence and
proper training of personnel involved in the operation,
transport, maintenance and storage of equipment.
Be Aware of Signal Words
Signal words designate a degree or level of hazard
seriousness.
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
This signal word is limited to the most extreme situations,
typically for machine components that, for functional
purposes, cannot be guarded.
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury, and includes hazards that are exposed when
guards are removed. It may also be used to alert against
unsafe practices.
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury. It may also be used to alert against unsafe
practices.
Prepare for Emergencies
Be prepared if a fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctor, ambulance, hospital
and fire department near phone.
Be Familiar with Safety Decals
Read and understand “Safety Decals” on page 6,
thoroughly.
Read all instructions noted on the decals.
Keep decals clean. Replace damaged, faded and illegible
decals.

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 2
Wear Protective Equipment
Great Plains advises all users of chemical pesticides or
herbicides to use the following personal safety
equipment.
Waterproof, wide-brimmed hat
Waterproof apron.
Face shield, goggles or full face respirator.
Goggles with side shields or a full face respirator is
required if handling or applying dusts, wettable powders,
or granules or if being exposed to spray mist.
Cartridge-type respirator approved for pesticide vapors
unless label specifies another type of respirator.
Waterproof, unlined gloves. Neoprene gloves are
recommended.
Cloth coveralls/outer clothing changed daily; waterproof
items if there is a chance of becoming wet with spray
Waterproof boots or foot coverings
Do not wear contaminated clothing. Wash protective
clothing and equipment with soap and water after each
use. Personal clothing must be laundered separately from
household articles.
Clothing contaminated with certain pesticides must be
destroyed according to state and local regulations. Read
chemical label for specific instructions.
Wear clothing and equipment appropriate for the job.
Avoid loose-fitting clothing.
Prolonged exposure to loud noise can cause hearing
impairment or loss. Wear suitable hearing protection such
as earmuffs or earplugs.
Avoid wearing entertainment headphones while operating
machinery. Operating equipment safely requires the full
attention of the operator.
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the skin,
causing serious injury. This planter requires a
Power-Beyond port, which is always under pressure
when the tractor is running.
Avoid the hazard by relieving pressure at other remotes,
and shutting down tractor before connecting,
disconnecting or inspecting hydraulic lines.
Use a piece of paper or cardboard, NOT BODY PARTS, to
check for suspected leaks.
Wear protective gloves and safety glasses or goggles when
working with hydraulic systems.
If an accident occurs, seek immediate medical assistance
from a physician familiar with this type of injury.

2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 3
4/30/19 Table of Contents Index 196-164M-A
Use A Safety Chain
Use a safety chain t1o help control drawn machinery
should it separate from tractor draw-bar.
Use a chain with a strength rating equal to or greater than
the gross weight of towed machinery.
Attach chain to tractor draw-bar support or specified
anchor location. Allow only enough slack in chain for
turns.
Replace chain if any links or end fittings are broken,
stretched or damaged.
Do not use safety chain for towing.
Keep Riders Off Machinery
Riders obstruct the operator’s view. Riders could be
struck by foreign objects or thrown from the machine.
Never allow children to operate equipment.
Keep all bystanders away from machine during operation.
Use Safety Lights and Devices
Slow-moving tractors and towed implements can create
a hazard when driven on public roads. They are difficult
to see, especially at night.
Use flashing warning lights and turn signals whenever
driving on public roads.
Use lights and devices provided with implement.
Transport Machinery Safely
Maximum transport speed for implement is 20 mph (32
kph), 13 mph (22 kph) in turns. Some rough terrains
require a slower speed. Sudden braking can cause a
towed load to swerve and upset.
Do not exceed 20 mph. Never travel at a speed which does
not allow adequate control of steering and stopping.
Reduce speed if towed load is not equipped with brakes.
Comply with state and local laws.
Do not tow an implement that, when fully loaded, weighs
more than 1.5 times the weight of towing vehicle.
Carry reflectors or flags to mark planter in case of
breakdown on the road.
Keep clear of overhead power lines and other
obstructions when transporting. Refer to transport
dimensions under “Specifications and Capacities” on
page 57.
Do not fold or unfold the planter while the tractor is
moving.

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 4
Handle Chemicals Properly
Agricultural chemicals can be dangerous. Improper use
can seriously injure persons, animals, plants, soil and
property.
Read and follow chemical supplier instructions.
Wear protective clothing.
Handle all chemicals with care.
Agricultural chemicals can be dangerous. Improper use
can seriously injure persons, animals, plants, soil and
property.
Inhaling smoke from any type of chemical fire is a serious
health hazard.
Store or dispose of unused chemicals as specified by the
chemical manufacturer.
If chemical is swallowed, carefully follow the chemical
manufacturer’s recommendations and consult with a
doctor.
If persons are exposed to a chemical in a way that could
affect their health, consult a doctor immediately with the
chemical label or container in hand. Any delay could
cause serious illness or death.
Dispose of empty chemical containers properly. By law
rinsing of the used chemical container must be repeated
three times. Puncture the container to prevent future use.
An alternative is to jet-rinse or pressure rinse the
container.
Wash hands and face before eating after working with
chemicals. Shower as soon as application is completed for
the day.
Apply only with acceptable wind conditions. Wind speed
must be below 5 mph. Make sure wind drift of chemicals
will not affect any surrounding land, people or animals.
Never wash out a hopper within 100 feet (30 m) of any
freshwater source or in a car wash.
Shutdown and Storage
Lower planter, put tractor in park, turn off engine, and
remove the key.
Secure planter using blocks and supports provided.
Detach and store planter in an area where children
normally do not play.

2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 5
4/30/19 Table of Contents Index 196-164M-A
Tire Safety
Tire changing can be dangerous. Employ trained
personnel using correct tools and equipment.
When inflating tires, use a clip-on chuck and extension
hose long enough for you to stand to one side–not in front
of or over tire assembly. Use a safety cage if available.
When removing and installing wheels, use wheel-handling
equipment adequate for weight involved.
Practice Safe Maintenance
Understand procedure before doing work. Use proper
tools and equipment. Refer to this manual for additional
information.
Work in a clean, dry area.
Lower the planter, put tractor in park, turn off engine,
and remove key before performing maintenance.
Make sure all moving parts have stopped and all system
pressure is relieved.
Allow planter to cool completely.
Disconnect battery ground cable (-) before servicing or
adjusting electrical systems or before welding on
planter.
Inspect all parts. Make sure parts are in good condition
and installed properly.
Remove buildup of grease, oil or debris.
Remove all tools and unused parts from planter before
operation.
Safety At All Times
Thoroughly read and understand the instructions in this
manual before operation. Read all instructions noted on
the safety decals.
Be familiar with all planter functions.
Operate machinery from the driver’s seat only.
Do not leave planter unattended with tractor engine
running.
Do not stand between the tractor and planter during
hitching.
Keep hands, feet and clothing away from power-driven
parts.
Wear snug-fitting clothing to avoid entanglement with
moving parts.
Watch out for wires, trees, etc., when folding and raising
planter. Make sure all persons are clear of working area.

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 6
Safety Decals
Safety Reflectors and Decals
Your implement comes equipped with all lights, safety
reflectors and decals in place. They were designed to
help you safely operate your implement.
Read and follow decal directions.
Keep lights in operating condition.
Keep all safety decals clean and legible.
Replace all damaged or missing decals. Order new decals
from your Great Plains dealer. Refer to this section for
proper decal placement.
When ordering new parts or components, also request
corresponding safety decals.
To install new decals:
1. Clean the area on which the decal is to be placed.
2. Peel backing from decal. Press firmly on surface,
being careful not to cause air bubbles under decal.
Reflector: Slow Moving Vehicle (SMV)
At center of walkboard;
1 total
See “Transporting” on page 25.
Reflectors: Red
On rear face of walkboard, left and right ends, outside
daytime reflectors;
2 total
See “Transporting” on page 25.
818-003C
818-230C
38130
38130

2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 7
4/30/19 Table of Contents Index 196-164M-A
Reflectors: Amber
On side frames at walkboard ends, and
on rear face of walkboard at left & right ends;
4 total
See “Transporting” on page 25.
Caution: Tires Not A Step
On side frames above tires;
2 total
See “Important Safety Information” on page 1.
Caution: Tire Damage Hazard
On left tongue tube near hitch;
1 total
See “Hitching Tractor to Drill” on page 22.
818-229C
38130
818-398C
818-020C
38130
38130
818-020C Rev. B
Do Not lower drill in folded
position - tire damage may
result.
To Avoid Machine Damage:
TIRE DAMAGE HAZARD
CAUTION

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 8
Caution: General
On front face of gearbox cover;
1 total
Warning: Negative Tongue Weight
On top of hitch tube;
1 total
See “Hitching Tractor to Drill” on page 22.
Warning: Speed
On top of hitch tube;
1 total
See “Transporting” on page 25.
818-078C
818-019C
818-188C
38130
CAUTION
38130
WARNING
NEGATIVE TONGUE WEIGHT
HAZARD
Negative tongue weight can cause immediate
elevation of tongue when unhitching implement
To prevent serious injury or death:
Always be certain implement is hitched securely
to tractor drawbar before raising.
Lower implement BEFORE unhitching.
818-019C Rev. D
38130
818-188C Rev. C
Do Not exceed 20 mph maximum transport
speed. Loss of vehicle control and/or machine
can result.
To Prevent Serious Injury or Death:
EXCESSIVE SPEED HAZARD
WARNING

2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 9
4/30/19 Table of Contents Index 196-164M-A
Warning: Tongue Weight
On top of hitch tube;
2 total
See “Frame Leveling Adjustment” on page 18.
Warning: Pinch Point Crush Hazard
On tongue crossbeam;
2 total
Warning: Transport Lock
On transport axle/lift assembly;
2 total
NOTE: On older drills with 838-258C decals, request
replacement decals from your dealer.
818-475C
38130
818-045C
818-477C
38130
38130

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Important Safety Information 10
Caution: Falling Hazard
On end of walkboards;
2 total
Warning: Moving Parts Hazard (Option)
On center of optional Small Seeds Box;
1 total
838-102C
38130
WARNING
To avoid serious injury or death:
Watch your step when climbing ladder or
walking on walkboard.
838-102C
838-205C
38131
818-205C Rev. B
To prevent serious injury or death from
moving parts:
Do not operate with guard missing
Close & secure drive guard before starting
MOVING PARTS HAZARD
WARNING

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Introduction 11
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
electro-hydraulic 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-disc, side-depth-control
openers. The openers are mounted on parallel arms.
Double-V press wheels follow the opener discs to firm
the seedbed.
Intended Usage
This machine is intended for use in minimum- or no-till
applications.
Models Covered
Document Family
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 is current 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.
NOTE: Useful information related to
the preceding topic.
Economic or Liability Risk:
Paragraphs in this format present a crucial point of
information related to the current topic. Read and follow
the directions to:
•remain safe
•avoid serious damage to equipment and
•ensure desired field results.
NOTE: Paragraphs in this format provide useful
information related to the current topic.
14570
Figure 1
Two-Section No-Till Drill
2N2420-2810 28-row, 10-inch spacing
2N2420-3875 38-row, 7-1/2 inch spacing
2N3020-3610 36-row, 10-inch spacing
2N3020-4875 48-row. 7-1/2 inch spacing
196-164M-A Owner’s Manual (this document)
194-164P Parts Manual
196-202M Pre-Delivery Manual
196-126B Seed Rate Charts
U
D
F
B
L
R

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Introduction 12
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 2.
Further Assistance
Great Plains Manufacturing, Inc. and your Great Plains
dealer want you to be satisfied with your new product. If
for any reason you do not understand any part of this
manual or are otherwise dissatisfied, please take the
following actions first:
1. Discuss the matter with your dealership service
manager. Make sure they are aware of any
problems so they can assist you.
2. If you are still unsatisfied, seek out the owner or
general manager of the dealership.
If your dealer is unable to resolve the problem or the
issue is parts related, please contact:
Great Plains Service Department
1525 E. North St.
P.O. Box 5060
Salina, KS 67402-5060
Or go to www.greatplainsag.com and follow the contact
information at the bottom of your screen for our service
department.
16537
Figure 2
Serial Number Plate

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Preparation and Setup 13
Preparation and Setup
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.
Pre-start Checklist
Read and understand “Important Safety
Information” on page 1.
Check that all working parts are moving freely, bolts
are tight, and cotter pins are spread.
Check that all grease fittings are in place and
lubricated. Refer to “Maintenance and Lubrication”
on page 48.
Check that all safety labels and reflectors are
correctly located and legible. Replace if damaged.
See “Important Safety Information” on page 1.
Inflate tires to pressure recommended and tighten
wheel bolts as specified. “Tire Inflation Chart” on
page 57.
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 3. Using the drill jack,
adjust the tongue up or down until the distance is
about 28 inches.
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. Bolt the hitch so
the drill matches drawbar height. Depending on the
size of your drill, refer to Figure 4 for the different
ways you can bolt the hitch and the resulting hitch
heights.
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
196-136H, is available through your Great Plains
dealer.
16273
Figure 3
Tongue Height

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Preparation and Setup 14
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 hydraulics 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.
16532
16274
Figure 4
Tongue Height

2N-2420 and 2N-3020 Table of Contents Index Preparation and Setup 15
4/30/19 Table of Contents Index 196-164M-A
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.
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.
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.
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 transport-
lock 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 base-
end 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.
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.

4/30/19 Table of Contents Index 196-164M-A
2N-2420 and 2N-3020 Table of Contents Index Preparation and Setup 16
6. Loosen the hose-end fitting coming into the tee on
the base end of the left tongue cylinder.
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
tool-bar cylinders.
10. Loosen the hose-end fitting at the tee on the rod end
of the left tongue cylinder
Do not attempt to bleed an O-ring fitting or O-ring damage
may occur.
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. Pin 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.
Check that the transport-lock and raise-to-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
base-end 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.