GREAT PLAINS 1200 User manual

Read the operator manual entirely. When you see
this symbol, the subsequent instructions and
warnings are serious - follow without exception.
Your life and the lives of others depend on it!
Illustrations may show optional equipment not
supplied with standard unit.
!
Table of Contents Index
Original Instructions 118-390M
Great Plains
PRE-DELIVERY MANUAL
MODELS 1200, 1210, 1220, 1500, 1510, 1520, 2000, 2010, & 2020
12, 15 and 20 Series 3-Point Drills

Machine Identification
Record your machine details in the log below. If you replace this manual, be sure to transfer this information to the new manual.
If you or the dealer have added options not originally ordered with the machine, or removed options that were originally ordered,
the weights and measurements are no longer accurate for your machine. Update the record by adding the machine weight and
measurements with the option(s) weight and measurements.
Dealer Contact Information
Model Number
Serial Number
Machine Height
Machine Length
Machine Width
Machine Weight
Year of Construction
Delivery Date
First Operation
Accessories
Name:
Street:
City/State:
Telephone:
Email:
Dealer’s Customer
No.:
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

To our customer:
Congratulations on the purchase of your Great Plains product. Great Plains welcomes you to its
growing family of new product owners. Your product has been designed and built by skilled
workers using quality materials.
Your dealer has performed the necessary pre-delivery service to your machine, and will advise
you of the proper maintenance and operating practices that will give you long, satisfactory use of
your machine. Do not hesitate to contact your dealer when you have a question related to your
machine.
Your machine has been designed to run efficiently in most operating conditions, and will perform
relative to the service it receives. If you need customer service or repair parts, contact your dealer
who has trained personnel, repair parts, and equipment specially designed for Great Plains
products.
Read this manual carefully before using the machine. It will familiarize you with safety, operation,
adjustments, and maintenance of your new equipment. This manual must always be kept with
your machine.
Great Plains wants you to be satisfied with your product. If for any reason you do not understand
any part of this manual or are otherwise dissatisfied, please take the following actions first:
1. Discuss the matter with your dealership service manager. Make sure he is aware of
any problems so he can assist you.
2. If you are still dissatisfied, seek out the owner or general manager of the dealership.
If your dealer is unable to resolve the problem or the issue is parts related, please contact:
Great Plains Service Department
1525 E. North St.
P.O. Box 5060
Salina, KS, USA 67402-5060
Printed 01/30/2024 | English
Great Plains reserves the right to revise and improve its products at any time. This publication describes the state of this
product at the time of its publication, and may not reflect the product in the future. The content of this publication may be
changed without notice.

© 2024 Great Plains | Printed in the United States of America
All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any
means, including photocopying, recording, or other electronic or mechanical methods, without the prior written
permission of the publisher, except in the case of brief quotations embodied in critical reviews and certain other
noncommercial uses permitted by copyright law.
Trademarks of Great Plains Manufacturing, Inc. include: AccuShot, DrillCommand, Max-Chisel, Row-Pro, Singulator
Plus, Short Disk, Swath Command, Terra-Tine, Ultra-Chisel, and X-Press.
Registered trademarks of Great Plains Manufacturing, Inc. include: Air-Pro, Clear-Shot, Discovator, Great Plains,
Land Pride, MeterCone, Nutri-Pro, Seed-Lok, Solid Stand, Terra-Guard, Turbo-Chisel, Turbo-Chopper, Turbo-Max,
Turbo-Trill, Ultra-Till, Whirlfilter, and Yield-Pro.
Brand and product names that appear and are owned by others are trademarks of their respective owners.
For permission requests, write to the publisher at the address below.
Great Plains Mfg.
1525 E. North St.
P.O. Box 5060
Salina, KS 67402
You can also visit our website at www.greatplainsag.com/en/manuals/905/product-manuals for a full catalog of this
and other manuals.
Ordering Information:
Quantity sales. Special discounts are available on quantity purchases by corporations, associations, and others. For
details, contact the publisher at the address above.
Orders for personal, non-commercial use. Please contact our service department by mail or our website
www.greatplainsag.com.

12, 15 and 20 Series 3-Point Drill Cover Index
Great Plains | 118-390M | 01/30/2024 v
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description of Unit . . . . . . . . . . . . . . . . . . . . . . . . 1
Intended Usage . . . . . . . . . . . . . . . . . . . . . . . 1
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . 1
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Information . . . . . . . . . . . . . . . . . . . . . . . 2
Safety Symbols and Signal Words. . . . . . . . . . . . 2
Observe Safety and Informational Symbols. . 2
Be Aware of Signal Words . . . . . . . . . . . . . . . 2
Before Getting Started . . . . . . . . . . . . . . . . . . . . . 2
Read Machine Information . . . . . . . . . . . . . . . 2
Wear Appropriate Clothing and Equipment . . 2
Inspect Machine Before Use . . . . . . . . . . . . . 2
Machine Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operate Responsibly . . . . . . . . . . . . . . . . . . . 3
Handle Hydraulics with Care . . . . . . . . . . . . . 3
Avoid Potential Collision Damage . . . . . . . . . 3
Chemicals and Waste . . . . . . . . . . . . . . . . . . . . . 3
Dispose of Waste Properly. . . . . . . . . . . . . . . 3
Machine Maintenance . . . . . . . . . . . . . . . . . . . . . 4
Follow Tire Recommendations. . . . . . . . . . . . 4
Prepare for Performing Maintenance . . . . . . . 4
PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Machine Transport . . . . . . . . . . . . . . . . . . . . . . . . 4
Use Safety Lights and Devices . . . . . . . . . . . . . . 4
Shutdown and Storage. . . . . . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pre-Assembly Checklist . . . . . . . . . . . . . . . . . . . . 5
Unloading Location Requirements . . . . . . . . . 5
Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Position Gauge Wheels . . . . . . . . . . . . . . . . . . . . 7
Install Drive System . . . . . . . . . . . . . . . . . . . . . . . 8
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Hitch Requirements . . . . . . . . . . . . . . . . . . . . . . 10
Models 1200, 1500 and 2000. . . . . . . . . . . . 10
Models 1210, 1220, 1510, 1520 and 2010. . 10
Model 2020 . . . . . . . . . . . . . . . . . . . . . . . . . 11
Hitching the Tractor to Drill. . . . . . . . . . . . . . . . . 11
Hitching the Drill with Optional Pull Package 11
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Torque Values Chart for Common Bolt Sizes . . 12
Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . . . 12
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

12, 15 and 20 Series 3-Point DrillTable of Contents Index
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Great Plains | 118-390M | 01/30/2024 1
12, 15 and 20 Series 3-Point DrillTable of Contents Index Introduction
Introduction
Great Plains Manufacturing wants you to be satisfied
with any new machine delivered by the Great Plains
Trucking network. To ease the assembly task and
produce a properly working machine, read this entire
manual before assembling or setting up new
equipment.
Description of Unit
The 12, 15 and 20 Series 3-Point Drills are seeding
implements designed to be raised, lowered and
towed with a three-point tractor hitch. The drills are
converted to pull-type units when used with a Great
Plain Center Pivot Hitch, All Seeds Hitch or pull
package.
The drills are equipped with either straight-arm (00
Series), parallel-arm (10 Series) or side-depth-
control (20 Series) openers. The openers are
staggered for easy residue flow. Opener depth can
be adjusted. Drill-box capacity is 2.4 bushels per
foot, and the seeding rate can be adjusted from 2 to
240 pounds per acre.
Intended Usage
This drill is intend for use in conventional- and
minimum-till applications.
Using This Manual
This manual was written to help you assemble and
prepare the new machine for the customer. The
manual includes instructions for assembly and setup.
Read this manual and follow the recommendations
for safe, efficient and proper assembly and setup.
An operator’s manual is also provided with the new
machine. Read and understand “Important Safety
Information” and “Operating Instructions” in the
operator’s manual before assembling the machine.
As a reference, keep the operator’s manual on hand
while assembling.
The information in this manual is current at printing.
Some parts may change to assure top performance.
Definitions
Right and left as used in this manual are determined
by facing the direction the machine will travel while in
use unless otherwise stated.
Note: Useful information related to the preceding
topic.

12, 15 and 20 Series 3-Point DrillTable of Contents Index Safety Information
Great Plains | 118-390M | 01/30/2024 2
Safety Information
Safety Symbols and Signal Words
Observe Safety and Informational Symbols
Throughout this manual you will see the following
safety and informational symbols. They indicate
safety hazards, machine hazards, or information to
improve operation. Read the instructions carefully
whenever you see any of these symbols:
The safety symbol indicates a potential safety hazard
to persons operating or near the machine and advises
on how to avoid it.
The notice symbol indicates a potential for machine
or property damage from operator error and advises
on how to avoid misuse.
The information symbol indicates useful - but not
crucial - information for machine operation,
assembly, or adjustment.
Be Aware of Signal Words
Some decals are accompanied by a signal word.
Signal words indicate the seriousness of a potential
hazard. These signal words are:
DANGER indicates an imminent hazard which, if not
avoided, will result in death or serious injury. This
signal word is limited to the most serious situations,
typically for unguarded machine components.
WARNING indicates a potential hazard which, if not
avoided, could result in death or serious injury
including hazards that are exposed when guards are
removed. It also alerts against unsafe practices.
CAUTION indicates a potential hazard, which if not
avoided, may result in minor or moderate injury. It
also alerts against unsafe practices.
Before Getting Started
Read Machine Information
Read this manual in its entirety before attempting to start
and operate the machine. Do not let anyone operate
machine without proper instruction.
Non-Great Plains components on this machine may
contain additional safety information not found in this
manual. Consult the manufacturer’s safety
information and product decals to safely use products
from third-parties.
Wear Appropriate Clothing and Equipment
Never wear loose clothing around machine. Always
wear appropriate clothing and equipment such as hard
hats, gloves, face masks, eye protection, and work or
steel-toed boots as needed.
Prolonged exposure to machine noise during
operation can cause hearing impairment or loss. Use
proper hearing protection like earmuffs or earplugs
while working.
Inspect Machine Before Use
Inspect brakes, link pins, and other mechanical parts
for wear and dirt buildup, and check that all guards
and shields are undamaged, installed, and secure
before operating machine.
Check that hydraulic fittings are tight and all hydraulic
hoses and lines are in good working condition before
applying pressure to the system.
Do not modify the machine. Unauthorized
modification can result in unsafe conditions that lead
to machine damage or personal injury.
!
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Great Plains | 118-390M | 01/30/2024 3
12, 15 and 20 Series 3-Point DrillTable of Contents Index Safety Information
Machine Use
Operate Responsibly
Maintain attention on operation at all times to avoid
injury to yourself or others.
Do not operate machine while distracted by a smart
phone, tablet, or similar electronic device, or while
impaired by alcohol, medication, any controlled
substance, or while fatigued.
Do not ever allow passengers to ride on any part of
the machine at any time, for any reason.
Handle Hydraulics with Care
Keep clear of machine while hydraulics are in use.
Any failure in the hydraulic system can cause
machine parts to move or fall rapidly with a great deal
of force. Anyone struck, caught between, or crushed
beneath these parts can suffer serious injury or even
death.
A raised planter without cylinder locks installed or
without active hydraulic pressure will slowly lower
over time. Use tractor hydraulics to raise planter only
for brief periods, such as field turns and cylinder lock
installation.
Relieve hydraulic pressure and wait for all parts to
come to a complete stop before disconnecting any
hydraulic lines or performing any work on the
hydraulic system.
Do not have skin exposed when searching for leaks in
hydraulic lines. Use a piece of cardboard or wood to
locate leaks. If injured by escaping hydraulic fluid, seek
immediate medical attention.
Wear protective gloves and eye protection when
working on the machine’s hydraulic system.
Avoid Potential Collision Damage
Watch your surroundings at all times. Do not operate
with nearby bystanders or while anyone makes
adjustments or fills the machine.
Avoid contacting overhead obstructions such as low
bridges, overpasses, and power lines.
Do not operate near ditches, holes, steep slopes,
embankments, or other surfaces which may collapse
under the machine’s weight or tip the machine over.
Chemicals and Waste
Agricultural chemicals can be dangerous. Improper use can
seriously injure persons, animals, plants, soil and property.
Read chemical manufacturer’s instructions carefully,
and then take appropriate precautions before use. In
the absence of manufacturer instructions, chemical
labels will inform you of any potential hazards and
their severity.
Wear protective clothing and as well as any other
personal protective equipment.
Wash hands and face before eating after working with
chemicals. Shower as soon as application is
completed for the day.
Apply only with acceptable wind conditions. Make
sure wind drift of chemicals will not affect any
surrounding land, people or animals.
Dispose of unused chemicals and chemical waste as
specified by the manufacturer. Observe all the local
ordinances and regulations in your area.
Dispose of Waste Properly
Dispose of waste properly to avoid threatening the
environment and ecology. Potential harmful waste
includes oil, fuel, filters, and batteries.
Use a leak-proof container for draining fluids. Do not
use a food or beverage container that may be
mistaken for a consumable product.
Do not drain or pour waste onto the ground, down a
drain, or into any water source.
Contact your local environmental or recycling center
for the proper way to recycle or dispose of waste.

12, 15 and 20 Series 3-Point DrillTable of Contents Index Safety Information
Great Plains | 118-390M | 01/30/2024 4
Machine Maintenance
Follow Tire Recommendations
Consult the tire manufacturer’s recommendations for
maintenance and replacement of your machine’s
tires. Only use prescribed tire sizes with correct
ratings and tire pressure.
Replacing tires is potentially hazardous. Have a
trained professional change the machine’s tires with
the proper tools and equipment.
Avoid over inflation of tires and over torquing wheel
bolts. Review the machine specifications and tire
information in this manual first before doing any work
on the tires of your machine.
Prepare for Performing Maintenance
Understand procedure before performing any work.
Always use proper tools and equipment.
Only work on or around the machine if frame is
lowered, or raised with the cylinder locks in place.
Lower the implement. Put tractor in Park, turn off engine.
To prevent unauthorized starting, remove key before
performing maintenance or service work.
If work must be performed with wings raised, set the
wing tilt locks to the road position.
Disconnect electronic monitor and lighting harness
from the tractor before servicing or adjusting
electrical systems.
Check and replace worn brake lines as needed.
Remove all tools and unused parts from implement
before operation.
PTO
Wait until all moving components have completely
stopped before adjusting, cleaning, or servicing any
PTO driven equipment.
When operating stationary PTO driven equipment,
always apply the parking brake and place chocks
behind wheels.
Stay clear of and never step over any rotating parts.
Machine Transport
This machine does not meet all local, regional, or
national regulations for transport on a public road.
Know and comply with your local laws and regulations
before transporting your machine.
Transport only at recommended transport speed.
Further reduce speed when turning.
Before towing implement on roads, empty out all
material from hoppers or boxes. Implement should
never weigh more than 1.5 times the weight of towing
vehicle.
Know transport height and width of implement to
avoid collision.
Do not engage any hydraulic functions while machine
is in transport.
Use Safety Lights and Devices
Inspect safety chain and chain load rating before use
with machine. Never use the safety chain for towing.
Replace chain if any links or end fittings are broken,
stretched, or otherwise damaged.
Always use safety lights and devices when
transporting and operating the machine. If equipped,
use flashing warning lights and turn signals whenever
driving on public roads.
Regularly inspect safety lights, signs, and devices to
ensure that they are clean and visible from either end
of the machine.
Shutdown and Storage
Park the tractor and implement on a solid, level
surface devoid of bystanders.
Fold and tilt wings up.
Put tractor in park or set the parking brake. Turn off
engine and remove key from ignition.
Turn lockout valve and wing lock levers to locked
position to prevent the wings from lowering.
Detach the tractor. Secure the implement using blocks.

Great Plains | 118-390M | 01/30/2024 5
12, 15 and 20 Series 3-Point DrillTable of Contents Index Assembly
Assembly
This section covers dealer requirements for
assembly. As the dealer, it is your responsibility to
unload, assemble and prepare the drill for use.
The drill is shipped via flat bed truck. Unload all
equipment before beginning assembly. Do not
attempt any assembly work while the drill is on the
truck.
The following sections are step-by-step instructions
for assembling the drill. Begin with Tools Required
and Pre-Assembly Checklist to ensure you have all
necessary parts and equipment at hand. Then
proceed with Install Gauge Wheels. Follow each step
to make the job as quick and safe as possible and
produce a properly working machine.
Tools Required
Properly rated forklift with 3-pt adapter to lift the drill,
or two forklifts with the properly rated combined
capacity for the drill, or overhead hoist, or loader with
6,500-pound capacity
Hand jack
General hand tools
Jack stands, blocks and safety chain
Pre-Assembly Checklist
1. Read and understand “Important Safety
Information” on page 2 before assembling.
2. Have at least two people on hand while
assembling.
3. Make sure the assembly area is level and free of
obstructions (preferably an open concrete area).
4. Have all major components.
5. Have all fasteners and pins shipped with the drill.
Note: If a pre-assembled part or fastener is
temporarily removed, remember where it goes. Keep
the parts separated.
6. Have a copy of the parts manual on hand. If
unsure of proper placement or use of any part or
fastener, refer to the parts manual.
7. Check that all working parts are moving freely,
bolts are tight, and cotter pins are spread.
8. Check for proper tension and alignment on all
drive chains.
9. Check that all safety labels and reflectors are
correctly located and legible. Replace if
improperly located or damaged. Refer to Safety
Labels, “Important Safety Information” in the
operator’s manual.
10. Inflate tires to recommended pressure as listed
on the Tire Inflation Chart on the “Appendix” on
page 12. Tighten wheel bolts as specified on
Torque Values Chart on the “Appendix” on page
12.
Unloading Location Requirements
Until unloaded, the drill cannot be moved using a
tractor. The drill needs to be unloaded directly above
the spot where final assembly takes place:
On a flat, level, and dry surface,
With adequate space to pull the trailer out from under
the lifted drill without turns,
With adequate space at the front and rear of the drill
to easily maneuver forklifts
With at least 10 ft. (3 m) clearance behind the press
wheels,
With tractor access in front.
Suggested Unload Clearances
40ft
150ft

12, 15 and 20 Series 3-Point DrillTable of Contents Index Assembly
Great Plains | 118-390M | 01/30/2024 6
Unloading
Crushing Hazard:
Keep all bystanders away from unloading area. Use
properly rated forklifts for unloading drill from trailer.
1. Unload all miscellaneous crates first. Place them
well out of the area needed for unloading the drill.
2. If using two forklifts, position one forklift at the
front and one at the rear of the drill.
On the front forklift, position the forks between two
openers, under the front frame tube.
On the rear forklift, position the forks under the rear
frame tube.
Machine Damage Risk:
Do not use straps to unload the drill.
Lift the drill by the frame tubes only. Do not
lift the drill by the seed cups or seed cup
channels.
Make sure the forklift forks are located
between openers on the front frame tube.
3. Slowly lift the drill off the trailer bed.
4. Stop lifting about 12 inches off the trailer bed.
5. Slowly pull the trailer straight out from under the
drill.
6. Making sure to keep the drill level front-to-back
and side-to-side, slowly lower the drill to the
ground 12 inches off the ground.
7. .Remove nuts and u-bolts from the two shipping
stands (3).
8. Remove shipping stands from the drill.
9. Slowly lower the drill to the ground.
10. Lower the forks and withdraw forklifts.
!
41
TireandDrillWhenRaising
andLoweringDrill
ReadOwner'sManualBefore
StandClearWhenRaising
andLowering Drill
OperatingDrill
NeverStandBetweenTractor
AwayFrom MovingChains
KeepHandsandClothing
NeverRide On Drill
andSprockets
818-005C
3
3
80440

Great Plains | 118-390M | 01/30/2024 7
12, 15 and 20 Series 3-Point DrillTable of Contents Index Assembly
Position Gauge Wheels
Gauge-wheel arms are factory-mounted on the drill
frame. Follow these steps to reposition the gauge
wheels to the proper width for your drill application.
Crushing hazard. You may be severely injured or
killed by the drill if it falls or tips forward. Securely
support the drill with jack stands or blocks before
installing the gauge wheels.
1. Block up or otherwise support the front of the drill
to keep it from tipping forward.
2. Measure dimension A for the left-hand gauge
wheel (1) as shown in Figure 1-1. Refer to the
following chart for gauge-wheel placement. If
necessary, mark the main frame where you will
remount the wheel.
To reposition the arm, use mechanical assistance to
lift and support the arm. Remove the two u-bolts, lift
the gauge-wheel arm, and reposition it on the frame.
Install the two U-bolts from the back side of the frame
tube and through the mounting holes. Secure with
lock washers and nuts.
Mount Gauge Wheel On Frame 12146
Gauge Wheel Placement Chart
Drill Description Dimension A, Figure 1-1
15- and 20-Foot with Single or Dual
Gauge Wheels, Standard Installa-
tion
15 1/2 inches
20-Foot with 30-Inch Irrigation
Beds
15 1/2 inches
20-Foot with 36-Inch Irrigation
Beds
15 3/8 inches
20-Foot with 40-Inch Irrigation
Beds
25 1/2 inches
15-Foot with Single Wheel, Outside
Mount (See NOTE below)
13 1/4 inches
12-Foot with Single Gauge Wheels 5 3/4 inches

12, 15 and 20 Series 3-Point DrillTable of Contents Index Assembly
Great Plains | 118-390M | 01/30/2024 8
Install Drive System
The extended wing (2) on top of the left-
hand, gauge-wheel mount where the
jackshaft bearing is mounted. Mount this
wing toward the outside on 15- and 20-foot
drills and toward the inside of 12-foot drills.
NOTE: If using the 15-foot drill with an All Seeds
Hitch, the extended wing (2) must be mounted to the
inside of the drill. Order Great Plains part number
120-210H to complete installation.
1. Check dimension A for the right-hand gauge
wheel and reposition if necessary using the
same procedure.
2. Jack up or otherwise support gauge-wheel arms.
Mount tires on wheel hubs. Tighten nuts as
specified on Torque Valves Chart, “Appendix,”
page 12.
1. Locate the 7/8-inch, hex jackshaft (1).
2. Starting at the gauge wheel, slide the shaft
through the 12-tooth sprocket and bearing
assembly (2). If the shaft aligns itself with the 7/8-
inch, hex-bore bearing (3), the sprocket and
bearing assemblies are properly in place.
If the shaft is too high or low to enter bearing (3),
loosen the flangette bolts and slide bearing (3) up or
down until the height matches the shaft.
If the shaft is too far forward or back to enter bearing
(3), slide the sprocket and bearing assembly (2) in its
mounting holes on the gauge wheel until shaft easily
slips into the bearing mounted on the drill frame.
3. Tighten both sets of bearing bolts.
12-Foot Drill with Single
Gauge Wheels
12147
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Great Plains | 118-390M | 01/30/2024 9
12, 15 and 20 Series 3-Point DrillTable of Contents Index Assembly
1. Slide the jackshaft (1) back out enough to slip on
the 12-tooth sprocket (2) if it is not already in
place.
2. Slide the jackshaft back through the bearing
mounted on the drill frame (3). Drive roll pins (4)
on either side of the bearing to trap shaft.
3. Align the 12-tooth sprocket (2) with the sprocket
on the seed-cup shaft. Lock the sprocket in
position using the sprocket set screws.
4. Route roller chain (5) as shown in 3.. Remove
excess chain slack with adjustable idler sprocket
(6).
5. For 20 Series drills, install the right-hand drive by
repeating steps 1 through 7.
6. Rotate each gauge-wheel tire several turns while
observing the entire drive system. If any chain
binds or pops, re-align sprockets until system
turns smoothly.
7. Recheck all fasteners to see if they are tight and
that all clips and retainers have snapped into
place.
Assembly Illustration 12125

12, 15 and 20 Series 3-Point DrillTable of Contents Index Setup
Great Plains | 118-390M | 01/30/2024 10
Setup
This section covers preparing the drill hitch for tractor
hookup and hitching the tractor to the drill.
Hitch Requirements
Use the drill with category II or III tractors.
Models 1200, 1500 and 2000
These drills are factory set for category II tractors.
For category III tractors, switch the left- and right-
hand pin supports as shown in .
In addition, you may need the following bushings
(not supplied by Great Plains) to fit your quick hitch
or tractor 3-point arms.
Upper link:1-in. ID x 1 1/4-in. OD x 2 1/8-in. max.
long
Lower links:1 1/8-in. ID x 1 7/16-in. OD x 2 1/4-in.
max. long
Category II Hitch
Category III Hitch
Models 1210, 1220, 1510, 1520 and 2010
These drills are equipped with extension brackets
that raise the drill 3 1/2 inches. This places the
parallel-arm and side-depth-control openers at the
same height as the coulters on the Center Pivot and
All Seeds Hitches.
If the drill will not be used with a Great Plains hitch,
remove the extensions and install the standard pin
supports. Pin supports are stored inside the drill box.
To remove the extensions.
1. Remove the 1 1/8 x 2 1/2-inch hex bolt (1),
washer (2) and nut (3) from hitch plates and
extension bracket.
2. Remove the 5/8 x 1 3/4-inch hex bolt (4), flat
washer (5), lock washer (6) and nut (7). Save the
bolt, lock washer and nut for later use.
Extension Removal
3. Install the standard pin support brackets using
the 5/8 x 1 3/4-inch hex bolt (8), washer (9) and
nut (10) used above.
Standard-Pin-Support Installation
4. Repeat steps for other lower link.
12148
12150
16483
16483

Great Plains | 118-390M | 01/30/2024 11
12, 15 and 20 Series 3-Point DrillTable of Contents Index Setup
Model 2020
2020 drills are equipped with a lift kit that is
compatible with category III quick hitches. This lift kit
raises the drill 4 inches using 1 7/16-inch diameter
pins.
Hitching the 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 pins.
1. Raise or lower tractor 3-point arms as needed
and pin lower arms to the drill.
2. Pin upper arm to drill. For category II tractors,
install hitch pin in the lower hole. For category III
tractors, install hitch pin in the upper hole.
3. Check that all tractor 3-point arms are securely
pinned, then slowly raise the drill. Watch for cab
interference.
4. If using the optional parking stand, unpin the
stand tubes. Rotate stand up into field position
and re-pin..
Parking Stand
5. Adjust the top 3-point link so the top edge of the
box is parallel with the ground when drilling.
6. Set your tractor 3-point draft control in the float
position.
Hitching the Drill with Optional Pull Package
The pull package attaches to the drill with a quick-
coupling hitch and is equipped with a threaded or
telescoping top link.
Use the threaded link to adjust your drill so it runs
horizontal to the ground when drilling.
The telescoping link allows your drill to float front-to-
back and follow the ground contour.
When hooking up to the drill, be sure the quick
hitches are latched securely.
12151

12, 15 and 20 Series 3-Point DrillTable of Contents Index Appendix
Great Plains | 118-390M | 01/30/2024 12
Appendix
Torque Values Chart for Common Bolt Sizes
in-tpi1N · m2ft-lb3N · m ft-lb N · m ft-lb mm x pitch4N · m ft-lb N · m ft-lb N · m ft-lb
1/4" - 20 7.4 5.6 11 816 12 M 5 X 0.8 4 3 6 5 9 7
1/4" - 28 8.5 613 10 18 14 M 6 X 1 7511 815 11
5/16 - 18 15 11 24 17 33 25 M 8 X 1.25 17 12 26 19 36 27
5/16" - 24 17 13 26 19 37 27 M 8 X 1 18 13 28 21 39 29
3/8" - 16 27 20 42 31 59 44 M10 X 1.5 33 24 52 39 72 53
3/8" - 24 31 22 47 35 67 49 M10 X 0.75 39 29 61 45 85 62
7/16" - 14 43 32 67 49 95 70 M12 X 1.75 58 42 91 67 125 93
7/16" - 20 49 36 75 55 105 78 M12 X 1.5 60 44 95 70 130 97
1/2" - 13 66 49 105 76 145 105 M12 X 1 90 66 105 77 145 105
1/2" - 20 75 55 115 85 165 120 M14 X 2 92 68 145 105 200 150
9/16" - 12 95 70 150 110 210 155 M14 X 1.5 99 73 155 115 215 160
9/16" - 18 105 79 165 120 235 170 M16 X 2 145 105 225 165 315 230
5/8" - 11 130 97 205 150 285 210 M16 X 1.5 155 115 240 180 335 245
5/8" - 18 150 110 230 170 325 240 M18 X 2.5 195 145 310 230 405 300
3/4" - 10 235 170 360 265 510 375 M18 X 1.5 220 165 350 260 485 355
3/4" - 16 260 190 405 295 570 420 M20 X 2.5 280 205 440 325 610 450
7/8" - 9 225 165 585 430 820 605 M20 X 1.5 310 230 650 480 900 665
7/8" - 14 250 185 640 475 905 670 M24 X 3 480 355 760 560 1050 780
1" - 8 340 250 875 645 1230 910 M24 X 2 525 390 830 610 1150 845
1" - 12 370 275 955 705 1350 995 M30 X 3.5 960 705 1510 1120 2100 1550
1-1/8" - 7 480 355 1080 795 1750 1290 M30 X 2 1060 785 1680 1240 2320 1710
1 1/8" - 12 540 395 1210 890 1960 1440 M36 X 3.5 1730 1270 2650 1950 3660 2700
1 1/4" - 7 680 500 1520 1120 2460 1820 M36 X 2 1880 1380 2960 2190 4100 3220
1 1/4" - 12 750 555 1680 1240 2730 2010
1 3/8" - 6 890 655 1990 1470 3230 2380 1in-tpi = nominal thread dia.in inches-threads per inch
1 3/8" - 12 1010 745 2270 1670 3680 2710 2N· m = newton-meters
1 1/2" - 6 1180 870 2640 1950 4290 3160 3ft-lb= foot pounds
1 1/2" - 12 1330 980 2970 2190 4820 3560 4 mm x pitch = nominal thread dia. in millimeters x thread pitch
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
Tire Inflation Chart
Tire Size Inflation PSI Tire Size Inflation PSI
7.50 x 20" 4-Ply Drill Rib 28 11L x 15" 6-Ply Rib Implement 28
9.0 x 22.5 10-Ply Highway Service 70 70 11L x 15" 12-Ply Rib Implement 52
9.0 x 24" 8-Ply Rib Implement 40 12.5L x 15" 8-Ply Rib Implement 36
9.5L x 15" 6-Ply Rib Implement 32 12.5L x 15" 10-Ply Rib Implement 44
9.5L x 15" 8-Ply Rib Implement 44 16.5L x 16.1" 10-Ply Rib Implement 36
9.5L x 15" 12-Ply Rib Implement 60 21.5 x 16.1” SC 10-Ply Rib Implement 28

Great Plains | 118-390M | 01/30/2024 13
12, 15 and 20 Series 3-Point DrillTable of Contents Index Warranty
Warranty
LIMITED WARRANTY
TERMS AND CONDITIONS (U.S. ONLY)
1. Great Plains (a division of the Kubota Corporation) warrants to the original purchaser that this
Great Plains unit will be free from defects in material and workmanship for a period of one year
from the first use date.
2. These terms apply when machine is used as intended and under normal service and
conditions for personal use; ninety days for custom/commercial or rental use.
3. This warranty is limited to the replacement of any defective part by Great Plains and the
installation by the dealer of any such replacement part. Great Plains reserves the right to
inspect any equipment or part which are claimed to have been defective in material or
workmanship.
4. No other warranty of any kind whatsoever - expressed or implied - is made with respect to this
sale; and all implied warranties of merchantability and fitness for a particular purpose which
exceed the obligations set forth in this written warranty are hereby disclaimed and excluded
from this sale.
5. This warranty does not extend to crop loss, losses caused by planting or harvest delays or any
expense or loss of labor, supplies, rental machinery, or for any other reason.
6. This warranty may be voided if the unit is towed at speeds in excess of 20 miles per hour (32
kilometers per hour), or is used in soils with rocks, stumps, or other obstructions.
7. This warranty shall not be interpreted to render Great Plains liable for damages of any kind,
direct or consequential or contingent to property.
8. Great Plains does not cover the following items and/or conditions:
a. failures resulting from abuse or misuse of the equipment,
b. failures occurring as a result of accidental damage or acts of God,
c. failures resulting from alterations or modifications, failures caused by lack of normal
maintenance as outlined in the operator’s manual or repairs made by non-authorized
personnel,
d. items replaced or repaired due to normal wear (such as wear items and ground
engaging components),
e. repeat repair due to improper diagnosis or repair by the dealer, temporary repairs,
service calls and/or mileage to and from customer location, overtime premium, or unit
hauling expenses, or
f. damages resulting from any cause beyond Great Plains control.
g. Great Plains reserves the right to make changes in materials or design of the product at
any time without notice.
This warranty is not valid unless the unit is registered with Great Plains within 10 days from the date of
the original purchase.