Great Plains 3N-3020P Operator Manual
Operator’s Manual
3N-3010P and 3N-3020P
No-Till Precision Seeding System
Manufacturing, Inc.
www.greatplainsmfg.com
Read the operator’s 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!
20067
Illustrations may show optional equipment not supplied with standard unit.
© Copyright 2010 Printed 4/21/2010
196-248M
Table of Contents
Important Safety Information. . . . . . . . . . . . . . . . . .1
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Description of Unit . . . . . . . . . . . . . . . . . . . . . . 14
Using This Manual . . . . . . . . . . . . . . . . . . . . . . 14
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 14
Owner Assistance. . . . . . . . . . . . . . . . . . . . . . . 15
Preparation and Setup . . . . . . . . . . . . . . . . . . . . . 16
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . .16
Hydraulic Hose Hookup . . . . . . . . . . . . . . . . . . 16
Hitching Tractor to Drill . . . . . . . . . . . . . . . . . . . 17
Hitch Height Adjustment . . . . . . . . . . . . . . . . . . 18
Bleeding Hydraulics . . . . . . . . . . . . . . . . . . . . . 19
Leveling Frame Side-to-Side . . . . . . . . . . . . . . 21
Box Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . 22
Operating Instructions . . . . . . . . . . . . . . . . . . . . . 23
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . 23
Folding the Drill. . . . . . . . . . . . . . . . . . . . . . . . . 24
Rephasing Lift System . . . . . . . . . . . . . . . . . . . 24
Unfolding the Drill . . . . . . . . . . . . . . . . . . . . . . . 25
Field Operation . . . . . . . . . . . . . . . . . . . . . . . . . 26
Meter Operation . . . . . . . . . . . . . . . . . . . . . 27
Electric Clutch Operation . . . . . . . . . . . . . . 27
Opener Operation . . . . . . . . . . . . . . . . . . . 27
Marker Operation . . . . . . . . . . . . . . . . . . . . 27
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
No-Till Seeding . . . . . . . . . . . . . . . . . . . . . . . . . 30
Coulter Adjustments . . . . . . . . . . . . . . . . . . . . . 31
Hydraulic Depth Control . . . . . . . . . . . . . . . 31
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Coulter Springs . . . . . . . . . . . . . . . . . . . . . 32
Individual Coulters . . . . . . . . . . . . . . . . . . . 32
Opener Adjustments. . . . . . . . . . . . . . . . . . . . . 33
Opener Down Pressure . . . . . . . . . . . . . . . 33
Opener Seeding Depth . . . . . . . . . . . . . . . 34
Press Wheel Adjustments . . . . . . . . . . . . . . . . 35
20 Series Side Wheels . . . . . . . . . . . . . . . . . . . 36
Seeding Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Drive Speed Range Sprockets. . . . . . . . . . 37
Transmission Sprockets . . . . . . . . . . . . . . . 37
Changing Seed Meter Wheels . . . . . . . . . . 38
Checking Volumetric Seeding Rate. . . . . . . 40
Checking Singulated Seeding Rate . . . . . . 41
Electric Clutch Switch Adjustment . . . . . . . 42
Marker Adjustments . . . . . . . . . . . . . . . . . . . . . 43
Folding Speed with Needle Valves . . . . . . . 43
Folding Speed with Sequence Valve. . . . . . 43
Marker Disk Adjustment . . . . . . . . . . . . . . . 43
Seed-Lok Lock Up. . . . . . . . . . . . . . . . . . . . . . . 44
Marker Width. . . . . . . . . . . . . . . . . . . . . . . . 45
Harrow Adjustment . . . . . . . . . . . . . . . . . . . . . . 47
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Maintenance and Lubrication . . . . . . . . . . . . . . . . 53
Meter Maintenance . . . . . . . . . . . . . . . . . . . . . . 54
Folding Drill Walkboards . . . . . . . . . . . . . . . 54
Shutting Off Seed Flow . . . . . . . . . . . . . . . . 55
Cleaning Out Meters . . . . . . . . . . . . . . . . . . 56
Meter Slide Maintenance . . . . . . . . . . . . . . 57
Chain Tension . . . . . . . . . . . . . . . . . . . . . . . 58
Seed Tube Maintenance . . . . . . . . . . . . . . . . . . 59
Sliding Seed Tube Replacement. . . . . . . . . 59
Grommet Maintenance . . . . . . . . . . . . . . . . 59
Opener Maintenance. . . . . . . . . . . . . . . . . . . . . 60
20 Series Opener Side Wheels. . . . . . . . . . 60
Opener Disks . . . . . . . . . . . . . . . . . . . . . . . 60
Opener Disk Spreader . . . . . . . . . . . . . . . . 61
Seed Flap Replacement . . . . . . . . . . . . . . . 62
Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Marker Maintenance . . . . . . . . . . . . . . . . . . . . . 63
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Specifications and Capacities . . . . . . . . . . . . . . . 73
Veris Drive Operating Instructions. . . . . . . . . . . . 73
Seed Rate Charts . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Torque Values Chart . . . . . . . . . . . . . . . . . . . . 105
Hydraulic Schematic . . . . . . . . . . . . . . . . . . . . 106
Tire Inflation Chart. . . . . . . . . . . . . . . . . . . . . . 107
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
© Copyright 2001, 2010 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 ofthis manual,Great PlainsManufacturing, Inc.assumes noresponsibility for errors or omissions. Neither is any liability assumed fordamages resultingfrom
the use of the information contained herein. GreatPlains Manufacturing, Inc. reserves theright to revise and improve its products as it sees fit. Thispublication describes
the state of this product at the time of its publication, and may not reflect the product in the future.
Great Plains Manufacturing, Incorporated Trademarks
The following are trademarks of Great Plains Mfg., Inc.: Application Systems, Ausherman, Land Pride, Great Plains
All other brands and product names are trademarks or registered trademarks of their respective holders.
Printed in the United States of America.
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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.
Important Safety Information
1
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.
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2
Be Familiar with Safety Decals
▲ Read and understand “Safety Decals,” page 7,
thoroughly.
▲ Read all instructions noted on the decals.
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 dur-
ing operation.
Shutdown and Storage
▲ Lower drill, put tractor in park, turn off engine,
and remove the key.
▲ Secure drill using blocks and supports pro-
vided.
▲ Detach and store drill in an area where chil-
dren normally do not play.
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 imple-
ment.
OFF
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Transport Machinery Safely
Maximum transport speed for implement is 20
mph. 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 drill 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,” page 73.
Important Safety Information
3
Avoid High Pressure Fluids
Escaping fluid under pressure can penetrate the
skin, causing serious injury.
▲ Avoid the hazard by relieving pressure before
disconnecting hydraulic lines.
▲ Use a piece of paper or cardboard, NOT
BODY PARTS, to check for suspected leaks.
▲ Wear protective gloves and safety glasses or
goggles when working with hydraulic systems.
▲ If an accident occurs, see a doctor immedi-
ately. Any fluid injected into the skin must be
surgically removed within a few hours or gangrene may result.
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4
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 drill, 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 drill to cool completely.
▲ Disconnect battery ground cable (-) before
servicing or adjusting electrical systems or
before welding on drill.
▲ 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 drill
before operation.
Prepare for Emergencies
▲ Be prepared if a fire starts.
▲ Keep a first aid kit and fire extinguisher handy.
OFF
▲ Keep emergency numbers for doctor, ambu-
lance, hospital and fire department near
phone.
Wear Protective Equipment
▲ Wear protective clothing and equipment.
▲ Wear clothing and equipment appropriate for
the job. Avoid loose-fitting clothing.
▲ Because prolonged exposure to loud noise
can cause hearing impairment or hearing loss,
wear suitable hearing protection such as earmuffs or earplugs.
▲ Because operating equipment safely requires
your full attention, avoid wearing radio headphones while operating machinery.
911
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Handle Chemicals Properly
Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals,
plants, soil and property.
▲ Read and follow chemical manufacturer’s
instructions.
▲ Wear protective clothing.
▲ Handle all chemicals with care.
▲ Avoid inhaling smoke from any type of chemi-
cal fire.
▲ Store or dispose of unused chemicals as
specified by chemical manufacturer.
Use A Safety Chain
▲ Use a safety chain to help control drawn
machinery should it separate from tractor
drawbar.
Important Safety Information
5
▲ Use a chain with a strength rating equal to or
greater than the gross weight of towed
machinery.
▲ Attach chain to tractor drawbar support or
other specified anchor location. Allow only
enough slack in chain to permit turning.
▲ Replace chain if any links or end fittings are
broken, stretched or damaged.
▲ Do not use safety chain for towing.
Tire Safety
Tire changing can be dangerous and should be
performed by trained personnel using correct
tools and equipment.
▲ When inflating tires, use a clip-on chuck and
extension hose long enough for you to stand
to one side–not in front of or over tire assembly. Use a safety cage if available.
▲ When removing and installing wheels, use
wheel-handling equipment adequate for
weight involved.
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6
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 drill functions.
▲ Operate machinery from the driver’s seat only.
▲ Do not leave drill unattended with tractor
engine running.
▲ Do not dismount a moving tractor. Dismount-
ing a moving tractor could cause serious injury
or death.
▲ Do not stand between the tractor and drill dur-
ing hitching.
▲ Keep hands, feet and clothing away from
power-driven parts.
▲ Wear snug-fitting clothing to avoid entangle-
ment with moving parts.
▲ Watch out for wires, trees, etc., when folding
markers or raising drill. Make sure all persons
are clear of working area.
▲ Do not turn tractor too tightly, causing drill to
ride up on wheels. This could cause personal
injury or equipment damage.
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Important Safety Information
7
Safety Decals
Your implement comes equipped with all safety
decals in place. They were designed to help you
safely operate your implement.
▲ Read and follow decal directions.
▲ Keep all safety decals clean and legible.
▲ Replace all damaged or missing decals. Order
new decals from your Great Plains dealer.
Refer to this section for proper decal placement.
▲ When ordering new parts or components, also
request corresponding safety decals.
▲ To install new decals:
1. Clean the area on which the decal is to be
placed.
2. Peel backing from decal. Press firmly on
surface, being careful not to cause air
bubbles under decal.
818-003C
Slow Moving Vehicle Label
838-266C
Red Reflectors
Reflectors on outside ends of center section walkboard; two reflectors total
19100
19100
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8
838-265C
Amber Reflectors
Reflectors on outside ends of wings and center
sections
19100
838-265C
Amber Reflectors
Reflectors on both sides of tongue
838-267C
Daytime Reflectors
Reflectors on inside ends of wing sections; two reflectors total
19104
19100
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818-019C
Neg Tongue Hazard
Important Safety Information
9
19101
818-188C
Excessive Speed
818-557C
Cannot Read English
19101
19101
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10
818-339C
High Pressure Hazard
19101
818-590C
Crushing Hazard
818-587C
General Instructions
19101
19101
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818-078C
General Instructions
Important Safety Information
11
19101
818-475C
Tongue Weight
818-045C
Pinch Point Hazard
Decals on both sides of tongue
19101
19104
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12
818-398C
Tires not a step
Four decals total
19102
818-855C (for rib tire 8-ply)
Tire 36 PSI; decals on gauge wheel tires;
four decals total
838-092C (for skid steer tire)
Tire 60 PSI; decals on gauge wheel tires;
Torque wheel bolts to 85 lb-ft.
four decals total
838-259C (for rib tire 20-ply)
Tire 90 PSI; decals on transport tires;
four decals total
19105
19105
838-426C (for skid steer tire)
Tire 60 PSI; decals on transport tires;
four decal total
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838-102C
Falling Hazard
Two decals total
Important Safety Information
13
19105
818-682C
Crushing Hazard
Two decals on first section
of each optional marker;
four decals total.
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14
Introduction
Great Plains welcomes you to its growing family of
new product owners. This drill has been designed
with care and built by skilled workers using quality
materials. Proper setup, maintenance and safe
operating practices will help you get years of satisfactory use from the machine.
Description of Unit
The 3N-3010P and 3N-3020P are pull-type seeding implements outfitted with no-till coulters for
use in no- or minimum-till conditions. The 3N3010P is outfitted with 10 series, parallel-arm
openers. The 3N-3020P is outfitted with 20 series,
side-depth-control openers. Both models fold for
transport. Both models are outfitted with Great
Plains seed singulation meters for singulating
drilled seed.
Intended Usage
Use the drill to seed production-agriculture crops
only. Do not modify the drill for use with attachments other than Great Plains options and
accessories specified for use with the drill.
Using This Manual
This manual will familiarize you with safety, assembly, operation, adjustments, troubleshooting
and maintenance. Read this manual and follow
the recommendations to help ensure safe and efficient operation.
The information in this manual is current at printing. Some parts may change to assure top
performance.
Definitions
The following terms are used throughout this
manual.
Singulated Seeds - seeds that are metered individually, such as soybeans, corn, cotton and milo.
The seed meter separates individual seeds from
the seed pool and distributes them one at a time.
The seed rates are designated as seeds per acre.
Volumetric Seeds - seeds that are metered by volume such as wheat and rice. The seed meter
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Introduction
15
separates multiple seeds from the seed pool and
distributes them at a constant flow rate. The seed
rates are designated as pounds per acre.
Sliding seed tubes - telescoping tubes which connect the seed box and seed meters.
Seed meter - the component which separates the
seeds for distribution.
Seed meter wheel - a changeable wheel inside
the seed meter with small pockets for separating
seeds.
Seed wheel pockets - indentations on the seed
meter wheel which collect seeds for distribution to
the opener seed tube.
Right-hand and left-hand as used in this manual
are determined by facing the direction the machine will travel while in use unless otherwise
stated.
A crucial point of information related to the preceding topic. For safe and correct operation, read and
follow the directions provided before continuing.
NOTE: Useful information related to the preceding topic.
Owner Assistance
If you need customer service or repair parts, contact a
Great Plains dealer. They have trained personnel, repair
parts and equipment specially designed for Great Plains
products.
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 wing frame tube on the left end of the drill as shown.
Record your drill model and serial number here for quick
reference:
Model Number:__________________________
Serial Number: ___________________________
Your GreatPlains dealer wants you to be satisfied with your
new machine. If you do not understand any part of this
manual or are not satisfied with the service received,
please take the following actions.
1. Discuss the matter with your dealership service manager. Make sure they are aware of any problems so they
can assist you.
2. If you are still unsatisfied, seek out the owner or general manager of the dealership.
3. For further assistance write to:
.
4/23/2010
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
19939
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3N-3010P and 3N-3020P
16
Preparation and Setup
This section will help you prepare your tractor and
drill for use. Before using the drill in the field, you
must hitch the drill to a suitable tractor (see “Tractor Requirements,” page 44) and level the drill.
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,” page 64.
4. Check that all safety decals and reflectors are
correctly located and legible. Replace if damaged. See “Safety Decals,” page 7.
5. Inflate tires to pressure recommended and
tighten wheel bolts as specified. See “Appendix,” page 105.
Hydraulic Hose Hookup
Great Plains hydraulic hoses are color coded to
help you hookup hoses to your tractor outlets.
Hoses that go to the same remote valve are
marked with the same color.
Color Hydraulic Function
White Fold
Blue Lift
Orange Marker Cylinders
To distinguish hoseson thesame hydraulic circuit,
refer to plastic hose label. Hose under extendedcylinder symbol feeds cylinder base ends. Hose
under retracted-cylinder symbol feeds cylinder
rod ends.
Plastic hose
label
17641
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Hitching Tractor to Drill
You may be severely injured or killed by being crushed
between the tractor and drill. Do not stand or place
any part of your body between drill and moving tractor. Stop tractor engine and set park brake before installing the hitch pin.
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.
Preparation and Setup
17
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, see a
doctor immediately. Any fluid injected into the skin
must be surgically removed within a few hours or gangrene will result.
3. Connect hydraulic hoses to tractor remotes.
Refer to “Hydraulic Hose Hookup,” page 16.
4. Plug the drill light cable to the tractor. If outfitted with an optional population monitor, connect monitor lead to monitor harness.
5. Plug electric clutch cable to the switch control
box cable.
Note: Switch control box should be mounted
in your tractor cab in a location with easy access. Route wiring harness with enough slack
to allow for tractor movement, especially articulating tractors.
6. 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.
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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.
Refer to Figure 1
1. Check the distance from the bottom of the
tongue to the ground as shown. Using the drill
jack, adjust the tongue up or down until the
distance is about 45 inches.
2. Back the tractor drawbar up to the drill hitch.
Determine how much adjustment is needed
for the drill to match drawbar height.
45 inches
Refer to Figure 2
3. Unbolt the hitch from the tongue. Rebolt the
hitch so the drill matches drawbar height.
When hitching the drill to a different tractor, check for
differences in drawbar heights and re-adjust the drill
hitch accordingly.
Figure 1
Hitch Height
Figure 2
Hitch Adjustment
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Bleeding Hydraulics
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 injured, seek
medical assistance from a doctor that is familiar with
this type of injury. Foreign fluids in the tissue must be
surgically removed within a few hours or gangrene
will result.
Bleeding Lift Hydraulics
The lift system is equipped with rephasing hydraulic cylinders that require a special procedure
for bleeding air from the system. Read and follow
the procedure carefully.
1. Check hydraulic fluid level in tractor reservoir
and fill to proper level. Add fluid to system as
needed while cycling new cylinders.
Preparation and Setup
19
2. Lower drill to ground.
3. Unpin rod ends of wheel cylinders. Pivot cylinders up and wire or otherwise safely support rodends higherthan base ends. You may
need to remove the gauge-wheel cylinders
from the rockshaft so you can orient them with
rod ends higher than base ends.
4. With the tractor engine at idle speed,energize
the lift hydraulics. When the cylinders have
extended completely, hold the remote lever
on for one minute. Check all hydraulic hoses,
cylinders and fittings for leaks.
5. Retract the cylinder rods. Extend the rods
again and hold the remote lever on for one
more minute. Repeat this step two more
times.
6. Again, check all hydraulic hoses, cylinders
and fittings for leaks. Recheck the tractor hydraulic reservoir. Fill to the proper level.
7. Repin all cylinders.
Bleeding Fold Hydraulics
Check hydraulic fluid level in tractor reservoir and
fill to proper level. Add fluid to system as needed
while cycling new cylinders.
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20
If drill fold cylinders have not been extended:
1. Crack fittings at base end of cylinders. Extend
cylinders to purge air from system.
2. Crack fittings at rod end of cylinders. Retract
cylinders to purge remaining air from system.
3. Tighten all fittings. Extend cylinders and pin to
drill lugs.
If drill cylinders have been extended:
1. Unfold drill so that fold cylinders are completely extended. Lower drill to ground. Unpin
rod ends of fold cylinders.
2. Crack fittings on rod end of cylinders. Purge
air from cylinders by retracting cylinder rods.
3. Crack fittings at base end of cylinders. Extend
cylinders to purge remaining air from system.
4. Tighten all fittings. Repin cylinders to drill.
Bleeding Marker Hydraulics
To fold properly, the marker hydraulics must be
free of air. If the markers fold in jerky, uneven motions, follow these steps.
You may be injured if hit by a folding or unfolding
marker. Markers may fall quickly and unexpectedly if
the hydraulics fail. Never allow anyone near the drill
when folding or unfolding the markers.
Check that tractor hydraulic reservoir is full.
1. With both markers lowered into field position,
loosen hydraulic-hose fittings at rod and base
ends of marker cylinders. If applicable, loosen
fittings on back side of sequence valve.
Never bleed an O-ring fitting. Instead, bleed a nearby
pipe or JIC fitting.
2. With tractor idling, activate tractor hydraulic
valve until oil seeps out around a loosened fitting. Tighten that fitting.
JIC fittings do not require high torque. JIC and Oring fittings do not require sealant. Always use liquid
pipe sealant when adding or replacing pipe-thread
fittings. To avoid cracking hydraulic fittings from over
tightening, do not use plastic sealant tape.
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3. Reactivate tractor hydraulic valve until oil
seeps out around another loosened fitting.
Tighten that fitting. Repeat process until all
loosened fittings have been bled and tightened.
Leveling Frame Side-to-Side
All frame sections must be level to maintain even
seeding depth. Before using the drill in the field,
follow these steps to make sure the drill is level
side-to-side.
Periodic frame-leveling adjustments should not
be necessary, but if you are having problems with
uneven depth, check drill levelness and follow
these procedures.
Complete the steps under “Bleeding Fold Hydraulics,” page 19, before proceeding.
Refer to Figure 3
Preparation and Setup
21
1. Locate the threaded eye bolt at the base end
of the gauge-wheel cylinders. The eye bolt is
locked in place by a jam nut. 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 amount of exposed thread is
about the same above and below. Repeat for
other end of drill.
3. Move the drill to a level area. With the drill unfolded, raise the drill to its highest position
with the lift cylinders. With the tractor idling,
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 until the
openers on the outside end of the drill are 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-to-end when drilling in actual seeding
conditions.
19119
Figure 3
Frame Leveling
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Box Alignment
To check and adjust box alignment:
1. Place a block ahead of each wing gauge
wheel. Pull drill forward against blocks to rock
frames back. Pull forward until stop bolts are
firmly against toolbars.
Refer to Figure 4
2. Check for proper alignment by running a
string line across back of drill toward outer
ends of wings. For proper alignment, outside
ends of boxes (dimension A) should be 1/4inch to 1/2-inch ahead of inside ends (dimension B).
Refer to Figure 5
3. To adjust box alignment, shorten or lengthen
stop bolts to change the contact point with the
toolbars. Adjust stop bolts (1) in or out until dimension A is 1/4-inch to 1/2-inch greater than
dimension B.
1
19127
Figure 5
Stop Bolt
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1
A
B
Figure 4
Box Alignment
1
B
A
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Operating Instructions
This section covers general operating procedures. Experience, machine familiarity and the
following information will lead to efficient operation and good working habits. Always operate
farm machinery with safety in mind.
Prestart Checklist
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 injured, seek
medical assistance from a doctor that is familiar with
this type of injury. Foreign fluids in the tissue must be
surgically removed within a few hours or gangrene
will result.
Operating Instructions
23
1. Carefully read “Important Safety Information,”
page 1.
2. Lubricate drill as indicated under “Lubrication,” page 64.
3. Check all tires for proper inflation. See “Appendix,” page 105.
4. Check all bolts, pins and fasteners. Torque as
shown in “Appendix,” page 105.
5. Check drill for worn or damaged parts. Repair
or replace parts before going to the field.
6. Check hydraulic hoses, fittings and cylinders
for leaks. Repair or replace before going to
the field.
7. Rotate both gauge wheels to see that the
drive and meters are working properly and
free from foreign material.
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Folding the Drill
Pinch Point and Crushing Hazard. To prevent serious
injury or death:
• Always use transport locks when drill is folded.
• Fold only if hydraulics are bled freeof air andfully
charged with hydraulic oil.
• Stay away from frame sections when they are be-
ing raised or lowered.
Keep away and keep others away when folding or unfolding 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.
Refer to Figure 6
1. Raise drill with lift cylinders until cylinders are
fully extended.
19107
Figure 6
Installing lock channels
2. Install lock channels over extended wheelcylinder rods on center section.
Refer to Figure 7
3. Move handle on fold latch ahead into road position.
4. Active hydraulics and slowly fold drill until
wings trigger the spring-loaded fold latch and
are secure in the latch.
Rephasing Lift System
Over a period of normal use the cylinders may get
out of phase. This will cause some drill sections to
run higher than others. To rephase cylinders:
1. Raise the implement completely and hold the
hydraulic remote lever on for several seconds
until all cylinders are fully extended. Do this
every time you raise drill out of ground.
2. When all cylinders are fully extended, momentarily reverse hydraulic remote lever to retract system 1/2 inch to maintain levelness.
19124
Figure 7
Fold latch handle
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Unfolding the Drill
This drill has negative tongue weight when unfolded
and raised. Unhooking the drill from the tractor when
the drill is unfolded could cause the drill tongue to
raise suddenly, hitting or crushing bystanders. 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.
To prevent serious injury or death:
• Always use transport locks when drill is folded.
• Fold only if hydraulics are bled freeof air andfully
charged with hydraulic oil.
Operating Instructions
25
• Stay away from frame sections when they are be-
ing raised or lowered.
• Keep away and keep others away when folding or
unfolding drill.
1. Unfold the drill on level ground with the tractor
transmission in neutral.
Refer to Figure 8
2. Move handle on fold latch back into field position.
3. Activate hydraulics to unfold drill.
NOTE: The latch is spring loaded. Pressure on
the latch may prevent the mechanism from releasing. If latch will not release, activate hydraulics to fold boxes to take pressure off
latch, then unfold drill.
Refer to Figure 9
4. Remove lock channels from center-section
wheel cylinders. Store lock channels on frame
gusset as shown
19123
Figure 8
Fold latch handle
5. Lower drill.
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Figure 9
Removing lock channels
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Field Operation
You may be severely injured or killed by being crushed
between the tractor and drill. Do not stand or place
any part of your body between drill and moving tractor. Stop tractor engine and set park brake before installing pins.
1. Hitch drill to a suitable tractor. Refer to “Hitching Tractor to Drill,” page 17.
2. Make sure proper seed meter wheels are in
place. For information on how to change seed
meter wheels see “Changing Seed Meter
Wheels,” page 38.
3. Make sure all seed meter clean out doors are
closed and pinned. For more information see
“Cleaning out Meters,” page 56.
4. Set seeding rate as explained under “Seeding
Rate,” page 37.
5. Open and pin sliding seed tubes. For further
information see page 38.
6. If your drill has been exposed to the elements
for a period of time with seed in the boxes,
check to make sure the seed in the seed
tubes and meters has not become wet.
Otherwise, load box with clean seed and talc.
Refer to “Talc Lubricant,”
Talc lubricant is mandatory for all seeds, especially
treated or inoculated seed.
7. Raise drill. Rotate contact drive wheel. Check
that seed meters, seed tubes and drives are
working properly and free from obstructions
by looking for seed under openers.
8. Record acremeter readout. Subtract initial
reading from later readings to determine
acres drilled.
9. Pull forward, lower drill and begin seeding.
10. Always lift drill out of the ground when turning
at row ends and for other short-radius turns.
Seeding will stop automatically as drill is
raised.
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Meter Operation
Refer to Figure 10
Before operation, make sure you are using the
correct seed meter wheel for the seed you are
using.
For information on meter adjustments, refer to
“Seeding Rate”, page 37.
If your drill has been exposed to the elements for
a period of time with seed in the boxes, check to
make sure the seed in the seed tubes and meters
has not become wet.
Seed tube
Seed
meter
Opener
seed tube
Sliding
Operating Instructions
Spring-loaded
idler
18286
27
Electric Clutch Operation
This unit is equipped with an electric clutch
mounted on each drive. This allows the operator
to selectively shut off one side of the drill at a time
to accommodate point row seeding.
The control box is mounted in the tractor cab and
has two on/off toggle switches with red indicator
lamps.
This unit is also equipped with an electric clutch
switch that automatically shuts off seed metering
to both sides whenever the unit is raised out of the
ground.
For information on “Electric Clutch Switch Adjustments” see page 42.
Opener Operation
Do not back up with openers in the ground. To do so
will cause severe damage and opener plugging.
For information on opener adjustments, refer to
“Opener Adjustments,” page 33. For more information on troubleshooting opener problems, see
“Troubleshooting”, page 48.
Figure 10
Marker Operation
Optional marker attachments are available from
your Great Plains dealer. Before operating markers, make sure hydraulics are properly bled as
described under “Marker Adjustments”, page 43.
Dual markers equipped witha sequence valve are
powered off the same hydraulic circuit. Starting
with both markers folded, the folding sequence is:
1. Activate lever - Right unfolds; left stays
folded.
2. Reverse lever - Right folds; left stays folded.
3. Activate lever - Left unfolds; right stays
folded.
4. Reverse lever - Left folds up; right stays
folded.
5. Sequence repeats.
You can adjust marker folding speed. Refer to
“Marker Adjustments”, page 43, and adjustfolding
speed to a safe rate. Folding markers at high
speed can damage markers.
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Transporting
Towing the drill at high speeds or with a vehicle that is
not heavy enough could lead to loss of vehicle control.
Loss of vehicle control could lead to serious road accidents, injury and death. To reduce the hazard, do not
exceed 20 mph.
Before transporting the drill, follow and check
these items:
Unload seed box. Unload seed box before transporting if at all possible. To do so:
• Place tarp under drill or a bucket under each
seed meter.
• Use large bucket to empty box as much as
possible. Make sure sliding seed tubes are in
the open position. Open seed meter clean out
to empty seed out of sliding seed tube and
meter.
The drill can be transported with a full box of grain,
but the added weight will increase stopping distance and decrease maneuverability.
Road rules. Comply with all federal, state and local safety laws when traveling on public roads.
Clearance. Remember that the drill is wider than
the tractor. Allow safe clearance. Transporting
with Markers
Always transport markers in the folded position.
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