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.
2/28/08
2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A
11
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
12
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.
2/28/08
2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A
13
Loading...