Great Plains 1520P Operator Manual
Operator’s Manual
1510P and 1520P
3-Point 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!
18326
Illustrations may show optional equipment not supplied with standard unit.
© Copyright 2010 Printed 05/06/2010
118-732M
Rev. A
Table of Contents
Important Safety Information . . . . . . . . . . . . . . . . 1
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Description of Unit. . . . . . . . . . . . . . . . . . . . . . 12
Intended Usage . . . . . . . . . . . . . . . . . . . . 12
Models Covered in this Manual . . . . . . . . 12
Using This Manual . . . . . . . . . . . . . . . . . . . . . 13
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . 13
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . 14
Preparation and Setup . . . . . . . . . . . . . . . . . . . . 15
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . 15
Hitching Tractor to Drill . . . . . . . . . . . . . . . . . . 15
Hydraulic Hose Hookup . . . . . . . . . . . . . . 16
Leveling Drill . . . . . . . . . . . . . . . . . . . . . . . . . . 17
10 Series Openers . . . . . . . . . . . . . . . . . . 17
20 Series Openers . . . . . . . . . . . . . . . . . . 18
Operating Instructions . . . . . . . . . . . . . . . . . . . . 19
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . 19
Field Operation . . . . . . . . . . . . . . . . . . . . . . . . 20
Meter and Sliding Seed Tube . . . . . . . . . . 21
Opener Operation. . . . . . . . . . . . . . . . . . . 22
Marker Operation . . . . . . . . . . . . . . . . . . . 22
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Series Openers . . . . . . . . . . . . . . . . . . . . . 25
Opener Down Pressure . . . . . . . . . . . . . . 25
Opener Seeding Depth. . . . . . . . . . . . . . . 26
20 Series Openers . . . . . . . . . . . . . . . . . . . . . 27
Opener Down Pressure . . . . . . . . . . . . . . 27
Side Gauge Wheels 20 Series Openers . 28
Opener Seeding Depth. . . . . . . . . . . . . . . 29
Press Wheel . . . . . . . . . . . . . . . . . . . . . . . 29
Frame Height . . . . . . . . . . . . . . . . . . . . . . . . . 30
Seeding Rate . . . . . . . . . . . . . . . . . . . . . . . . . 30
Drive Speed Range Sprockets . . . . . . . . . 31
Transmission Sprockets . . . . . . . . . . . . . . . 31
Shutting Off Seed Flow . . . . . . . . . . . . . . . 32
Cleaning Out Meters . . . . . . . . . . . . . . . . . 33
Changing Seed Meter Wheels . . . . . . . . . . 34
Checking Volumetric Seeding Rate . . . . . . 37
Checking Singulated Seeding Rate . . . . . . 38
Marker Adjustments . . . . . . . . . . . . . . . . . . . . . 39
Bleeding Marker Hydraulics . . . . . . . . . . . . 39
Folding Speed with Needle Valves. . . . . . . 40
Folding Speed with Sequence Valve . . . . . 40
Marker Disk Adjustment . . . . . . . . . . . . . . . 40
Marker Width . . . . . . . . . . . . . . . . . . . . . . . 42
Seed-Lok® Lock Up . . . . . . . . . . . . . . . . . . . . . 45
Harrow Adjustment . . . . . . . . . . . . . . . . . . . . . . 45
Harrow Frame Tube . . . . . . . . . . . . . . . . . . 45
Harrow Height . . . . . . . . . . . . . . . . . . . . . . 46
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Maintenance and Lubrication . . . . . . . . . . . . . . . 52
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Seed Flap Replacement . . . . . . . . . . . . . . . . . . 59
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Drive Chains. . . . . . . . . . . . . . . . . . . . . . . . 61
Gauge Wheel Arm Pivots. . . . . . . . . . . . . . 61
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Specifications and Capacities . . . . . . . . . . . . . . . 67
Veris Drive Operating Instructions . . . . . . . . . . . 68
Seed Rate Charts . . . . . . . . . . . . . . . . . . . . . . . . . 97
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Torque Values Chart . . . . . . . . . . . . . . . . . . . . 127
Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . 128
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
© Copyright 2000, 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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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 67.
Important Safety Information
3
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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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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.
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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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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
Reflector on both ends of drill; two reflectors total.
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838-265C
Amber Reflectors
Reflector on both ends of drill; four reflectors total.
18262
818-337C
Excessive Speed Hazard
818-339C
High Pressure Hazard
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818-587C
General Instructions
Important Safety Information
18262
9
818-590C
Crushing Hazard
838-102C
Falling Hazard
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818-398C
Falling Hazard
1 62
818-751C
Tire Pressure
818-229C
Amber Reflector
Reflector on each optional marker.
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818-682C
Crushing Hazard
Two decals on first section of each optional marker;
four decals total.
Important Safety Information
1827018270
11
838-267C
Daytime Reflector
Reflector on both ends of drill; two reflectors total.
838-467C
Possible Chemical Hazard
Decal inside the lid of the small seeds box.
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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 1510P and 1520P model drills are 3-point
mounted precision seeding systems equipped
with either 10 Series or side-depth-control, 20 Series openers. The openers are staggered for easy
residue flow. Opener depth can be adjusted.
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.
Models Covered in this Manual
1510P and 1520P
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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.
Introduction
13
Volumetric Seeds - seeds that are metered by volume such as wheat and rice. The seed meter
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.
Machine travel
direction
Left-hand
side
Right-hand
side
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.
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Owner Assistance
If you need customer service or repair parts, contact a Great Plains dealer. They have trained
personnel, repair parts and equipment specially
designed for Great Plains products.
Refer to Figure 1
Your machine’s parts were specially designedand
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 main frame
tube on the left end of the drill.
Record your drill model and serial number here for
quick reference:
Model Number:__________________________
Serial Number: ___________________________
Your Great Plains dealer wants you to be satisfied
with your new machine. If you do not understand
any part of this manual or are not satisfied with the
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:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
Figure 1
Serial Number Plate
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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 65) 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 61.
4. Check that all safety decals and reflectors are
correctly located and legible. Replace if damaged. See “Safety Decals,” page 7.
Preparation and Setup
15
5. Inflate tires to pressure recommended and
tighten wheel bolts as specified. See “Appendix,” page 127.
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. Great Plains 3-point Drills are engineered to
be used with Category II or III tractors. 15’ and
20’ 3-Point Drills are factory set for Category II
tractors. To change to Category III, exchange
the left hand pin support with the right hand as
shown.
2. In addition, the following bushings (not supplied by Great Plains) may be needed to fit
your quick hitch or tractor’s 3-point arms:
• Upper Link 1in ID X 11⁄4in OD
Category II Hitch
Category III Hitch
• Lower Links 11⁄8in ID X 17⁄16in OD
3. Be sure that all tractor 3-Point arms are securely pinned before lifting the drill. Adjust the
top 3-Point link so that the top edge of the box
is parallel with the ground.
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4. DO NOT use the link to adjust the depth of
opener penetration. Three hitch pins are furnished with each 3-Point Drill.
5. Set your tractor 3-Point draft control in the
float position.
6. Raise or lower tractor three-point arms as
needed and pin lower arms to drill.
7. Pin upper arm to drill. For category II, III and
III-N tractors, install hitch pin in the lower hole.
For category IV-N tractors, install hitch pin in
the upper hole.
8. Slowly raise drill. Watch for cab interference.
9. Adjust top three-point link so that top edge of
drill box is parallel with ground when drilling.
NOTE: Do not use link to adjust opener depth.
For opener adjustments, refer to page 25.
10. Set your tractor three-point-draft control to
float position.
11. Plug lead from drill light harness into tractor
receptacle.
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
Orange Marker Cylinders
To distinguish hoses on the same hydraulic circuit, refer to plastic hose label. Hose under
extended-cylinder symbol feeds cylinder base
ends. Hose under retracted-cylinder symbol
feeds cylinder rod ends.
Plastic hose
label
17641
Hydraulic Hose Label
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Leveling Drill
Refer to Figure 2
10 Series Openers
Initially adjust drill so bottom of opener tube runs
24 inches above ground when drill is lowered in
the field.
Refer to Figure 3
To adjust:
1. Loosen jam nut near top clevis of each
gauge-wheel turnbuckle.
NOTE: Jam nut is left-hand threaded.
2. Make sure upper clevis (2) is in upper mount
hole as shown.
3. Set turnbuckle length. Turn turnbuckle to
shorten or lengthen as necessary. Initially set
length to 17
achieve the 24-inch dimension mentioned
above. When adjusting the turnbuckle length,
remember:
1
⁄2inches between pin centers to
Preparation and Setup
Figure 2
Initial Operating Height
17
18279
• Lengthening turnbuckle raises drill.
• Shortening turnbuckle lowers drill.
4. After adjusting both turnbuckles to the same
length, tighten jam nuts.
5. Level drill with top three-point link.
Refer to Figure 4
NOTE: When drill is level, parallel links will be
running slightly uphill towards the front.
The 1 to 11⁄2inch dimension shown in figure 4 is a
general dimension that will vary with planting conditions.
Make sure the opener mount is running higher than
the opener body. This will ensure an ample reserve
for opener upfloat in case the opener strikes a rock or
other object.
Figure 3
Gauge-Wheel Turnbuckle
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Figure 4
Leveling the Drill
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18
20 Series Openers
Refer to Figure 5
Initially adjust drill so bottom of opener tube runs
24 inches above ground when drill is lowered in
the field.
Refer to Figure 6
To adjust:
1. Loosen jam nut near top clevis of each
gauge-wheel turnbuckle.
NOTE: Jam nut is left-hand threaded.
2. Make sure upper clevis (2) is in upper mount
hole as shown.
3. Set turnbuckle length. Turn turnbuckle to
shorten or lengthen as necessary. Initially set
length to 171⁄2inches between pin centers to
achieve the 24-inch dimension mentioned
above. When adjusting the turnbuckle length,
remember:
Figure 5
Initial Operating Height
18280
• Lengthening turnbuckle raises drill.
• Shortening turnbuckle lowers drill.
4. After adjusting both turnbuckles to the same
length, tighten jam nuts.
5. Level drill with top three-point link.
Refer to Figure 7
NOTE: When drill is level, parallel links will be
running slightly uphill towards the front.
The1to11⁄2inch dimension shown is a general
dimension that will vary with planting conditions.
Make sure the opener mount is running higher than
the opener body. This will ensure an ample reserve
for opener upfloat in case the opener strikes a rock or
other object.
Figure 6
Gauge-Wheel Turnbuckle
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Figure 7
Leveling the Drill
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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
19
1. Carefully read “Important Safety Information,”
page 1.
2. Lubricate drill as indicated under “Lubrication,” page 61.
3. Check all tires for proper inflation. See “Appendix,” page 127.
4. Check all bolts, pins and fasteners. Torque as
shown in “Appendix,” page 127.
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.
Watch your step when walking on drill ladder and
walkboard. Falling from drill could cause severe injury or death.
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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 asuitable tractor orhitch. Refer to
“Hitching Tractor to Drill,” page 15 or your
hitch operator’s manual.
Refer to Figure 8
Seed
meter
wheel
2. Make sure proper seed meter wheels are in
place. For information on how to change the
seed meter wheels see page 34.
Refer to Figure 9
3. Make sure all seed meter clean out doors, are
closed and pinned. For more information see
page 33.
4. Set seeding rate as explained in “Seeding
Rate”, page 30.
Refer to Figure 10
5. Open and pin sliding seed tubes. For further
information see page 32.
6. Load box with clean seed and talc.
7. Raise drill. Rotate gauge wheel. Check that
seed meters, seed tubes and drives are working properly and free from foreign material by
looking for seed flow under each opener.
8. Record acremeter readout. Subtract initial
reading from later readings to determine
acres drilled.
19190
Figure 8
Seed Meter Wheel in place
Seed meter
clean out door
Retaining
clip
Figure 9
Seed meter clean out door in closed position
18261
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.
118-732M
Sliding seed
tubes
Figure 10
Sliding seed tubes in open position
18290
5/6/2010
Operating Instructions
21
Meter and Sliding Seed Tube
Refer to Figure 11
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 30.
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
Figure 11
Seed Meter
Spring-loaded
idler
18286
Talc Lubricant (P/N: 821-046C)
Great Plains “Ezee Glide” talc is 100% natural talc.
Use only Great Plains “Ezee Glide” brand talc for
optimum seed flow.
“Ezee Glide” Talc lubricant is mandatory for all
seeds, especially treated or inoculated seed.
Recommended usage:
For clean seeds sprinkle (1) one cup of talc per 3 bushels of seed. Adjust this rate as necessary so all seeds
become coated while avoiding an accumulation of talc in
the bottom of the hopper.
For seed with excessive treatment, or for humid planting
environments, increase the rate as needed for smooth
meter operation.
Thorough mixing of seed and added lubricant is required. DO
NOT use hands or any part of your body to mix talc
lubricant.
Graphite Lubricant (P/N: 821-042C)
For Milo Planting Only
Powdered graphite must be mixed with the milo seed in
combination with talc for proper seed singulation.
Recommended usage:
For clean seeds sprinkle (1) one cup of graphite per 9
bushels of seed.
For seed with excessive treatment, or for humid planting
environments, double or triple graphite rate as needed.
Do not use hands or any part of your body to mix graphite
lubricant.
5/6/2010
118-732M
1510P and 1520P
22
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
page 25 or page 27. For more information on troubleshooting opener problems, see
“Troubleshooting”, page 47.
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 39.
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 39, and adjustfolding
speed to a safe rate. Folding markers at high
speed can damage markers.
118-732M
5/6/2010
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. Check that your tractor has enough
ballast to handle the weight of the drill. Refer to your
tractor operator’s manual for ballast requirements.
NOTE: For transporting with drill attached to a
hitch, refer to your hitch operator’s manual.
Before transporting the drill, follow and check
these items:
Unload seed box. Unload seed box before transporting if at all possible. To do so:
Operating Instructions
23
• 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.
NOTE: To maintain steering control, you may
need to add ballast to your tractor front end.
Refer to your tractor operator’s manual for ballast required.
Road rules. Comply with all federal, state and lo-
cal safety laws when traveling on public roads.
Refer to Figure 12
Clearance. Remember that the drill is wider than
the tractor. Allow safe clearance. Fold up walkboard ladder for maximum clearance.
Transporting with Markers
Always transport markers in the folded position.
Figure 12
Ladder Folded for Transport
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5/6/2010
118-732M
1510P and 1520P
24
Parking
For information on long-term storage, refer to
“Storage”, page 60.
Empty seed box before unhitching drill to prevent drill
from falling backward.
NOTE: For parking with drill attached to a
hitch, refer to your hitch operator’s manual.
1. Empty seed box.
2. Park drill on a level, solid surface.
3. Lower three-point hitch until drill is on the
ground.
4. Extend or retract the top link of the tractor until
top three-point pin is free. Remove pin.
5. Remove pins from lower links.
118-732M
5/6/2010
Adjustments
Adjustments
25
10 Series Openers
Opener Down Pressure
Refer to Figure 13
Opener springs provide the down pressure necessary for opener disks to open a seed trench.
The springs allow the openers to float down into
depressions and up over obstructions.
You can adjust down pressure individually for
each opener. This is useful for penetrating hard
soil and planting in tire tracks.
Use enough down pressureto cutthe seed trench
and maintain proper soil-firming over seed. Excessive opener down force will lead to premature
wear on opener components.
Refer to Figure 14
To adjust down pressure, use adjustment tool
stored under walkboard. Position tool in hole on
spring mounting plates, and pull down as shown.
Move the adjustment cam to the new setting.
Opener spring
Disk
18272
Figure 13
10 Series Opener with Meter
Refer to Figure 15
Minimum and maximum settings are indicated by
position of adjustment cam.
NOTE: Install the chain connector link so that
the clip opening (split end) faces the opposite
of the chain travel with the retainer towards
the centerline of the opener.
5/6/2010
Adjustment
tool
Adjustment Tool
Minimum setting
Adjustment Cam Settings
Figure 14
Figure 15
18409
Maximum setting
12104
118-732M
1510P and 1520P
26
Opener Seeding Depth
Refer to Figure 16
A press wheel attached to each opener body controls seeding depth. To maintain consistent depth,
the relationship between the bottom of the opener
disks and press wheel is fixed upwardly.
The press wheels also close the seed trench and
gently press soil over seed. To provide consistent
soil firming, press wheels are free to move down
from normal operating position. This maintains
pressing action even if opener disks encounter
obstructions or hard soil.
Press wheel
Disk
18272
Figure 16
10 Series Opener with Meter
Refer to Figure 17
Set opener seeding depth by adjusting T-handles.
To adjust, first raise openers slightly, then lift and
slide T-handles on top of openers as shown. Adjust all T-handles to the same setting.
• For shallower seeding, slide T-handles forward toward drill.
• For deeper seeding, slide T-handles back
away from drill.
T-Handle
12100
Figure 17
10 Series Opener Seeding Depth
118-732M
5/6/2010
Adjustments
27
20 Series Openers
Opener Down Pressure
Refer to Figure 18
Opener springs provide the down pressure necessary for opener disks to open a seed trench.
The springs allow the openers to float down into
depressions and up over obstructions.
You can adjust down pressure individually for
each opener. This is useful for penetrating hard
soil and planting in tire tracks.
Use enough down pressure to cut the seed trench
and maintain proper soil-firming over seed. Excessive opener down force will lead to premature
wear on opener components.
Refer to Figure 19
Opener spring
Disk
20 Series Opener with Meter
Figure 18
18273
To adjust down pressure, use adjustment tool
stored under walkboard. Position tool in hole on
spring mounting plates, and pull down. Move the
adjustment cam to the new setting.
Refer to Figure 20
Minimum and maximum settings are indicated by
position of adjustment cam.
Adjustment
tool
Adjustment Tool
Minimum setting
Figure 19
18409
Maximum setting
5/6/2010
Figure 20
Adjustment Cam Settings
12104
118-732M
1510P and 1520P
28
Side Gauge Wheels 20 Series Openers
Refer to Figure 21
The side gauge wheels have two, interrelated
adjustments:
• angle of side gauge wheel, and
• distance between side gauge wheel and row unit
disk.
Refer to Figure 22
Side Gauge
Wheel
Opener
Disks
Side Gauge
Wheel
Adjust side-gauge-wheel angle so the wheels contact the row unit disks between 4 and 8 o’clock at the
bottom of wheel.
At the same time, keep the side gauge wheels close
to the opener disks so openers do not plug with soil
or trash but far enough out so the disks and wheels
turn freely.
• If contact point is between 4 to 8 o’clock but
distance to tire is not correct, then add or re-
move shims as needed. DO NOT ADJUST
BEARING AS THAT WILL ADJUST WHEELTO-DISK CONTACT AREA ONLY.
Refer to Figure 23
To adjust Wheel-to-Disk contact area of side gauge
wheels:
1. Raise drill slightly to remove weight from side
gauge wheels.
2. Loosen hex-head bolt (1). Move wheel and arm
out on o-ring bushing.
3. Loosen pivot bolt (2). Turn hex adjuster (3) so roll
pin (4) is at 1 o’clock. Use this as the starting
point for adjustment.
Incorrect Correct
Figure 21
Side Gauge Wheels
Note: Wheel touches at bottom and gaps open 3/
8” to 5/8” at top.
8 o’clock
Figure 22
Wheel-to-Disk Contact Area
4 o’clock
17812
4. Movewheel arm in so side gauge wheel contacts
row unit disk. Tighten hex-head bolt (1) to clamp
arm around bushing and shank.
5. Check the wheel-to-disk contact. Lift wheel and
arm. When let go, the wheel should fall freely.
• If wheel does not contact disk from 4 to 8
o’clock, move hex adjuster until wheel is angled
for proper contact with disk.
• If wheel does not fall freely, loosen hex-head
bolt (1) and slide wheel arm out just until wheel
and arm move freely. Retighten hex-head bolt.
6. Keepturning hex adjuster and moving wheel arm
until the wheel is adjusted properly. When satisfied, tighten pivot bolt to 110 foot-pounds. Tighten pivot bolt (2).
118-732M
1
Starting Point
Side Gauge Wheel Adjustment
3
2
4
18450
Figure 23
5/6/2010
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