GREAT PLAINS 3P605NT User manual

Read the operator manual entirely. When you see
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Table of Contents Index
Original Instructions 151-061M
Great Plains
OPERATOR MANUAL
MODELS 3P605NT, 3P606NT, 605NT & 606NT
6-Foot No-Till Drills
25106
25105

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 02/22/2024 | 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.

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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.
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For permission requests, write to the publisher at the address below.
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1525 E. North St.
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You can also visit our website at www.greatplainsag.com/en/manuals/905/product-manuals for a full catalog of this
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Ordering Information:
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Orders for personal, non-commercial use. Please contact our service department by mail or our website
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6-Foot No-Till Drills Cover Index
Great Plains | 151-061M | 02/22/2024 v
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description of Unit . . . . . . . . . . . . . . . . . . . . . . . . 1
Intended Usage . . . . . . . . . . . . . . . . . . . . . . . 1
Models Covered . . . . . . . . . . . . . . . . . . . . . . . 1
Document Family . . . . . . . . . . . . . . . . . . . . . . 1
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . 2
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety Information . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Symbols and Signal Words. . . . . . . . . . . . 3
Observe Safety and Informational Symbols. . 3
Be Aware of Signal Words . . . . . . . . . . . . . . . 3
Before Getting Started . . . . . . . . . . . . . . . . . . . . . 3
Read Machine Information . . . . . . . . . . . . . . . 3
Wear Appropriate Clothing and Equipment . . 3
Inspect Machine Before Use . . . . . . . . . . . . . 3
Machine Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operate Responsibly . . . . . . . . . . . . . . . . . . . 4
Handle Hydraulics with Care . . . . . . . . . . . . . 4
Avoid Potential Collision Damage . . . . . . . . . 4
Chemicals and Waste . . . . . . . . . . . . . . . . . . . . . 4
Dispose of Waste Properly. . . . . . . . . . . . . . . 4
Machine Maintenance . . . . . . . . . . . . . . . . . . . . . 5
Follow Tire Recommendations. . . . . . . . . . . . 5
Prepare for Performing Maintenance . . . . . . . 5
PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Machine Transport . . . . . . . . . . . . . . . . . . . . . . . . 5
Use Safety Lights and Devices . . . . . . . . . . . . . . 5
Shutdown and Storage. . . . . . . . . . . . . . . . . . . . . 5
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Reflector: Slow Moving Vehicle (SMV). . . . . . 6
Reflectors: Red . . . . . . . . . . . . . . . . . . . . . . . 6
Reflectors: Amber . . . . . . . . . . . . . . . . . . . . . 7
Reflectors: Amber (With Weights Option) . . . 7
Danger: Hitch Crush. . . . . . . . . . . . . . . . . . . . 7
Danger: Moving Chain (Option) . . . . . . . . . . . 7
Danger: Possible Chemical Hazard (Option) . 8
Warning: Speed . . . . . . . . . . . . . . . . . . . . . . . 8
Warning: Moving Parts (standard) . . . . . . . . . 8
Warning: Moving Parts (Option). . . . . . . . . . . 8
Warning: High Pressure Fluid . . . . . . . . . . . . 9
Warning: Falling Hazard. . . . . . . . . . . . . . . . . 9
Warning: Clevis Adjustment . . . . . . . . . . . . . . 9
Warning: Crushing (Option) . . . . . . . . . . . . . . 9
Caution: Tires Not A Step . . . . . . . . . . . . . . 10
Caution: General . . . . . . . . . . . . . . . . . . . . . 10
Caution: Tire Pressure and Torque . . . . . . . 11
NOTICE: Petroleum Products . . . . . . . . . . . 11
Preparation and Setup . . . . . . . . . . . . . . . . . . . 12
Pre-Setup Checklist . . . . . . . . . . . . . . . . . . . . . . 12
Hitching Tractor to Drill. . . . . . . . . . . . . . . . . . . . 12
Hitching Model 3P606NT . . . . . . . . . . . . . . . 12
Hitching Model 606NT . . . . . . . . . . . . . . . . . 13
Electrical Connections . . . . . . . . . . . . . . . . . . . . 14
Height and Leveling the Drill . . . . . . . . . . . . . . . 14
Height Setup: Model 3P606NT. . . . . . . . . . . 14
Height Setup: Model 606NT . . . . . . . . . . . . . 15
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pre-Start Checklist . . . . . . . . . . . . . . . . . . . . . . . 17
Transporting 3P606NT . . . . . . . . . . . . . . . . . . . . 18
Use an Adequate Tractor (3-Point). . . . . . . . 18
3P606NT Example Weights . . . . . . . . . . . . . 18
Transporting 606NT . . . . . . . . . . . . . . . . . . . . . . 19
Use an Adequate Tractor (Pull-Type). . . . . . 19
Use Transport Locks . . . . . . . . . . . . . . . . . . 20
Transport Cautiously . . . . . . . . . . . . . . . . . . 22
Loading Seed . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Main Seed Box Loading . . . . . . . . . . . . . . . 22
Loading Native Grass Box. . . . . . . . . . . . . . 22
Loading Small Seeds Box . . . . . . . . . . . . . . 22
Field Operation. . . . . . . . . . . . . . . . . . . . . . . . . . 23
Re-Phasing Cylinders. . . . . . . . . . . . . . . . . . 23
Acremeter Operation . . . . . . . . . . . . . . . . . . . . . 24
Operating Instructions . . . . . . . . . . . . . . . . . 24
Acremeter Screens. . . . . . . . . . . . . . . . . . . . 25
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Frame Weight Adjustment . . . . . . . . . . . . . . . . . 30
Coulter Adjustments . . . . . . . . . . . . . . . . . . . . . . 31
Coulter Depth . . . . . . . . . . . . . . . . . . . . . . . . 31
Coulter Down-Force . . . . . . . . . . . . . . . . . . . 32
Drive Clutch Adjustment. . . . . . . . . . . . . . . . . . . 32
06 Series Row Unit Adjustments . . . . . . . . . . . . 33
Opener Spring . . . . . . . . . . . . . . . . . . . . . . . 34
Disc Blade Adjustments . . . . . . . . . . . . . . . . 35
Disc Scraper Adjustment . . . . . . . . . . . . . . . 36
Seed Firmer Adjustments . . . . . . . . . . . . . . . 36
Small Seeds Tube Adjustment (Option) . . . . 38
Opener Depth (Press Wheel Height) . . . . . . 38
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Drive Idler Adjustment (606NT) . . . . . . . . . . 39
Seed Clean-Out . . . . . . . . . . . . . . . . . . . . . . 40
Seed Flap Replacement. . . . . . . . . . . . . . . . . . . 41

6-Foot No-Till Drills Cover Index
Great Plains | 151-061M | 02/22/2024 vi
Bleeding Hydraulics . . . . . . . . . . . . . . . . . . . 41
Chain Maintenance . . . . . . . . . . . . . . . . . . . 42
Gearbox Maintenance . . . . . . . . . . . . . . . . . 42
Lubrication and Scheduled Maintenance . . . . . . 43
Coulter Pivots. . . . . . . . . . . . . . . . . . . . . . . . 43
Drive Shaft Clutch . . . . . . . . . . . . . . . . . . . . 43
Seed Cup Drive Shaft Sprocket . . . . . . . . . . 43
Gauge Wheel Arms . . . . . . . . . . . . . . . . . . . 43
Small Seeds Shaft Bearings (Option). . . . . . 44
Drive Chains (Model: 3P606NT) . . . . . . . . . 44
Drive Chains (Model: 606NT). . . . . . . . . . . . 45
Coulter Hubs . . . . . . . . . . . . . . . . . . . . . . . . 45
Wheel Bearings (3P606NT) . . . . . . . . . . . . . 45
Left Wheel Bearings (606NT). . . . . . . . . . . . 46
Right Wheel Bearings (606NT) . . . . . . . . . . 46
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Acremeter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Carbide Disc Scraper . . . . . . . . . . . . . . . . . . . . . 47
Coulter Blades . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Hitches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Main Seed Box Accessories . . . . . . . . . . . . . . . 48
Agitator (Main Seed) . . . . . . . . . . . . . . . . . . 48
Seed Tube Plug (Main Seeds) . . . . . . . . . . . 49
Series II Native Grass Attachment . . . . . . . . . . . 49
Seed Lubricants . . . . . . . . . . . . . . . . . . . . . . 50
Press Wheel Selection . . . . . . . . . . . . . . . . . . . . 50
Small Seeds Attachment . . . . . . . . . . . . . . . . . . 50
Small Seeds Tube Plug . . . . . . . . . . . . . . . . 51
Small Seeds Partition. . . . . . . . . . . . . . . . . . 51
Seed Firmers . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Keeton®Seed Firmer . . . . . . . . . . . . . . . . . . 51
Seed-Lok®Seed Firmer. . . . . . . . . . . . . . . . 51
Weight Brackets . . . . . . . . . . . . . . . . . . . . . . 52
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . 53
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Appendix A - Reference Information . . . . . . . 56
Tire Information . . . . . . . . . . . . . . . . . . . . . . . . . 56
Torque Values Chart . . . . . . . . . . . . . . . . . . . . . 57
Hydraulic Diagram . . . . . . . . . . . . . . . . . . . . . . . 58
Drive System Diagrams . . . . . . . . . . . . . . . . . . . 59
3P606NT Drives. . . . . . . . . . . . . . . . . . . . . . 59
606NT Drives . . . . . . . . . . . . . . . . . . . . . . . . 60
Native Grass Drive Chain Routing . . . . . . . . . . . 63
3P605NT, 3P606NT, 605NT, 606NT . . . . . . 63
Small Seeds Drive Chain Routing . . . . . . . . . . . 64
3P605NT, 3P606NT, 605NT, 606NT . . . . . . 64
Agitator Drive Chain Routing . . . . . . . . . . . . . . . 65
3P605NT, 3P606NT. 605NT, 606NT . . . . . . 65
Seed Box Chain Routing . . . . . . . . . . . . . . . . . . 66
3P605NT, 3P606NT . . . . . . . . . . . . . . . . . . . 66
Drive Chain Routing . . . . . . . . . . . . . . . . . . . . . . 67
605NT, 606NT . . . . . . . . . . . . . . . . . . . . . . . 67
Gauge Wheel Drive Chain Routing . . . . . . . . . . 68
605NT, 606NT . . . . . . . . . . . . . . . . . . . . . . . 68
Appendix B - Pre-Delivery . . . . . . . . . . . . . . . . 69
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Pre-Assembly Checklist . . . . . . . . . . . . . . . . . . . 69
Unloading Location Requirements . . . . . . . . 69
Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Attach Meter Hoses at Rows . . . . . . . . . . . . . . . 71
Install SMV Reflector . . . . . . . . . . . . . . . . . . . . . 71
Appendix C - Accessory Installation . . . . . . . 72
Carbide Disc Scraper Installation . . . . . . . . . . . . 72
Weight Bracket Installation. . . . . . . . . . . . . . . . . 73

6-Foot No-Till Drills Table of Contents Index Introduction
Great Plains | 151-061M | 02/22/2024 1
Introduction
Great Plains welcomes you to its growing family of
new product owners. Your 6-Foot No-Till 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 606NT towed seeding implement. This drill has
a working width of 7.5 feet (1.9 m). The drill has
straight arm, double disc 05 or 06 Series openers.
The opener discs make a seed bed, and seed tubes
mounted between the discs place seed in the furrow.
Press wheels following the opener discs close the
furrow and gauge opener seeding depth. A T-handle
on the opener body makes seeding depth
adjustments
The metering system is driven from the gauge wheel
(3-point), or from the left end wheel (pull-type).
Seeding rates are set by rate adjustment handles
and a Drive Type gearbox for the main seed box.
Intended Usage
Use this implement to seed production-agriculture
crops in conventional or minimum tillage
applications.
Models Covered
This manual applies to drill models:
Standard 3P606NT or 606NT Models have a main
seed box. Native Grass and/or Small Seeds
capability may be added.
Document Family
Operator Manual (this document)
3P606NT, 606NT Parts Manual
Seed Rate Manual
3P606NT No-Till Drill 32704
606NT No-Till Drill 32703
606NT Product Manual QRC
The QR Code to the left will take you
to Great Plains’ catalog of product
manuals. Use your smart phone or
tablet to scan and start viewing.
3P606NT Product Manual QRC
The QR Code to the left will take you
to Great Plains’ catalog of product
manuals. Use your smart phone or
tablet to scan and start viewing.
Parts Manual QRC
The QR Code to the left will take you
to this machine’s parts manual. Use
your smart phone or tablet to scan
and start viewing.

Great Plains | 151-061M | 02/22/2024 2
6-Foot No-Till Drills Table of Contents Index Introduction
Using This Manual
This manual familiarizes you with safety, assembly,
operation, adjustments, troubleshooting, and
maintenance. Read this manual and follow the
recommendations to help ensure safe and efficient
operation.
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. An orientation rose in some
line art illustrations shows the
directions of: Up, Back, Left, Down,
Front, Right.
Identifies an Economic (not a Safety) Risk:
NOTICE provides a crucial point of information
related to the current topic. Read and follow the
instructions to avoid damage to equipment and
ensure desired field results.
This form sets off useful information related to the
current topic, or forestalls possible
misunderstanding.
The information in this manual is current at printing.
Some parts may change to assure top performance.
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
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 upper front
frame tube, just left of center.
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.
For further assistance write to:
Product Support
PO Box 5060
Salina, KS 67402-5060
U
D
F
B
L
R
Serial Number Location, 606NT 32703

6-Foot No-Till Drills Table of Contents Index Safety Information
Great Plains | 151-061M | 02/22/2024 3
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.
!
!
i

Great Plains | 151-061M | 02/22/2024 4
6-Foot No-Till Drills Table 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.

6-Foot No-Till Drills Table of Contents Index Safety Information
Great Plains | 151-061M | 02/22/2024 5
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.

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6-Foot No-Till Drills Table of Contents Index Safety Decals
Safety Decals
Your implement comes equipped with safety
reflectors and decals in place.
Read and follow decal directions. Keep all safety
decals clean and legible. Replace all damaged,
faded, 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:
Clean the area on which the decal is to be placed.
Peel backing from decal. Press firmly on surface,
being careful not to cause air bubbles under decal.
Safety Reflectors and Decals
Your implement comes equipped with all lights,
safety reflectors and decals in place. They were
designed to help you safely operate your implement.
Read and follow decal directions.
Keep lights in operating condition.
Keep all safety decals clean and legible.
Replace all damaged or missing decals. Order new
decals from your Great Plains dealer. Refer to this
section for proper decal placement.
When ordering new parts or components, also
request corresponding safety decals.
To install new decals:
1. Clean the area on which the decal is to be
placed.
2. Peel backing from decal. Press firmly on surface,
being careful not to cause air bubbles under
decal.
Reflector: Slow Moving Vehicle (SMV)
At center of walkboard; 1 total
See transport topic on page 18 or page 19.
Reflectors: Red
On rear face of walkboard, left and right ends; 2 total
See transport topic on page 18 or page 19.
818-055C
838-266C
32693
32693

6-Foot No-Till Drills Table of Contents Index Safety Decals
Great Plains | 151-061M | 02/22/2024 7
Reflectors: Amber
On side frames at walkboard ends; 2 total
See transport topic on page 18 or page 19.
Reflectors: Amber (With Weights Option)
838-266C
On decal mounts attached to top front tool bar; 2 total
See transport topic on page 18 or page 19.
Danger: Hitch Crush
(3P606NT only)
Front face, each end of top front tool bar; 2 total
Danger: Moving Chain (Option)
(optional Native Grass box)
On chain guard of Native Grass option box (left end);
1 total
838-266C
32693
18621A
818-590C
818-518C
32695
DANGER
818-590C
Keep others away.
CRUSHING HAZARD
Do not stand between implement and moving tractor.
To prevent serious injurt or death:
818-518C
DONOT operate with inclosure missing
Toprevent serious injury from moving chain:
MOVING CHAIN HAZARD
DANGER
32700
818-518C
DO NOT operate with enclosure missing
MOVING CHAIN HAZARD
To prevent serious injury from moving chain:
CAUTION

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6-Foot No-Till Drills Table of Contents Index Safety Decals
Danger: Possible Chemical Hazard (Option)
(with Small Seeds Option only)
Under lid; 1 total
Warning: Speed
On front face, upper front frame tube, left of center;
1 total
See transport topic on page 18 or page 19.
Warning: Moving Parts (standard)
On front face, upper front frame tube, below
gearbox; 1 total
Warning: Moving Parts (Option)
(with Small Seeds Option only)
On front face, upper front frame tube, below
gearbox; 1 total
838-467C
818-337C
32696
32695
WARNING
EXCESSIVE SPEED
HAZARD
To Prevent Serious Injury or Death:
Do NOT exceed 20 mph maximum
transport speed. Loss of vehicle
control and/or machine damage
can result.
818-337C Rev. B
818-860C
818-860C
32695
32696

6-Foot No-Till Drills Table of Contents Index Safety Decals
Great Plains | 151-061M | 02/22/2024 9
Warning: High Pressure Fluid
(606NT only)
On side frames, near cylinder; 2 total
Warning: Falling Hazard
On side frames at walkboard ends; 2 total
See “Loading Seed” on page 22.
Warning: Clevis Adjustment
(606NT only)
On tongue cross-tube near turnbuckle; 2 total
See “Height and Leveling the Drill” on page 14.
Warning: Crushing (Option)
(optional Native Grass box)
On underside of lid; 1 total
838-094C
838-102C
32693
Keep all components in good repair.
HIGH PRESSURE FLUID HAZARD
To prevent serious injury or death:
Relieve pressure on system before repairing or
adjusting or disconnecting.
Wear proper hand and eye protection when searching
for leaks. Use wood or cardboard instead of hands.
838-094C
WARNING
32693
WARNING
To avoid serious injury or death:
Watch your step when climbing ladder or
walking on walkboard.
838-102C
838-406C
838-611C
32693
WARNING
32700

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6-Foot No-Till Drills Table of Contents Index Safety Decals
Caution: Tires Not A Step
(606NT only)
On side frames above tires; 2 total
Tires may be in light contact with ground, or off the
ground, when the drill is lowered.
Caution: General
3P606NT: On front face, upper front frame tube, right
of center; 1 total
606NT: On front face, upper front frame tube, right
end;
See “Safety Information” on page 3.
818-398C
32693
To Avoid Injury for Unsecured
Transport Tires:
Never stand on or use transport
tires as a step.
Tires not in contact with the
ground will rotate easily.
818-398C
CAUTION
818-719C
32695
32693
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
To prevent injury or death:
Read and understand Operator’s Manual before using.
Lower implement, stop tractor engine, set park brake and remove ignition
Do now allow riders.
Keep others away during operation.
Safely support and secure implement before repairs are made.
key before servicing, adjusting, repairing or unplugging.
CAUTION
818-719C

6-Foot No-Till Drills Table of Contents Index Safety Decals
Great Plains | 151-061M | 02/22/2024 11
Caution: Tire Pressure and Torque
(606NT only) On rim of each end wheel with 700-15
LT tires; 2 total
NOTICE: Petroleum Products
858-679C
(3P6006NT and 606NT only) On the left-hand ends
of each seed box; 1 per seed box
848-021C
32693
CAUTION
To Avoid Injury or Machine Damage from Improper Tire
Inflation or Torquing of Wheel Bolts:
Maximum inflation pressure for tires is 60 psi.
Torque wheel bolts to 85 lb-ft.
•
•
848-021C REV. B
xxx

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6-Foot No-Till Drills Table of Contents Index Preparation and Setup
Preparation and Setup
This section helps you prepare your tractor and drill
for use. Before using the drill in the field, you must
hitch the drill to a suitable tractor and also setup the
drill.
Pre-Setup Checklist
1. Verify that dealer pre-delivery is complete
(page 69) and optional accessories are installed
(page 72).
2. Read and understand “Safety Information” on
page 3.
3. Check that all working parts are moving freely,
bolts are tight, and cotter pins are spread.
4. Check that all grease fittings are in place and
lubricated. See “Lubrication and Scheduled
Maintenance” on page 43.
5. Check that all safety decals and reflectors are
correctly located and legible. Replace if
damaged. See “Safety Information” on page 3.
6. Inflate tires and tighten wheel bolts as at “Tire
Information” on page 56 and, “Torque Values
Chart” on page 57
Hitching Tractor to Drill
Hitching Model 3P606NT
Crushing Hazard:
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.
Certain Machine Damage:
Remove tractor draw bar before hitching
the 3P606NT. The drill drive wheel will be
damaged if drawbar is not removed.
1. Raise or lower tractor 3-point arms as needed
and pin lower arms to drill.
2. Pin upper arm to drill.
3. Slowly raise drill. Watch for cab interference.
4. Adjust top 3-point link so the top edge of drill box
is parallel with the ground when drilling.
Do not use link to adjust opener depth. For opener
adjustments, refer to “Opener Depth (Press Wheel
DANGER
818-590C
Keep others away.
CRUSHING HAZARD
Do not stand between implement and moving tractor.
To prevent serious injurt or death:
Equipment Damage Risk:
Due to interference with the gauge wheel
assembly, drill models 3P606NT are not
compatible with Great Plains accessory
hitches CPH, PFH and SSH, nor with the
hitch set-back kit.
!
!

6-Foot No-Till Drills Table of Contents Index Preparation and Setup
Great Plains | 151-061M | 02/22/2024 13
Height)” on page 38. Set your tractor 3-point draft
control to Float position for planting.
Hitching Model 606NT
Crushing Hazard:
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. With drill lowered in field position and tongue jack
mounted as shown in , raise or lower tongue jack
to level drill tongue.
2. With drill tongue level, adjust drill hitch on drill
tongue to match your tractor-drawbar height. You
can move the hitch up or down or turn it over for
a total of four different hitch heights.
3. When drill hitch matches tractor-drawbar height,
hitch drill to tractor.
4. Securely attach drill safety chain to an anchor on
tractor capable of pulling drill.
When hitching drill to a different tractor, check for a
difference in drawbar heights. If heights are different,
readjust hitch height accordingly.
Jack in Parking Position 18473
Clevis Hitch Height Adjustment 18544
159/32 in.
38.8 cm
189/32 in.
46.4 cm
1917/32 in.
49.6 cm
2217/32 in.
57.2 cm
Pintle Hitch Height Adjustment 27216
1525/32 in.
40.1 cm
1825/32 in.
47.7 cm
201/32 in.
50.9 cm
231/32 in.
58.5 cm

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6-Foot No-Till Drills Table of Contents Index Preparation and Setup
Hydraulic Hose Hookup (606NT)
High Pressure Fluid Hazard:
Shut down tractor before making hydraulic
connections. Only trained personnel should work
with system hydraulics. Escaping fluid under
pressure can have sufficient pressure to penetrate
the skin causing serious injury. Use 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, seek immediate medical assistance
from a physician familiar with this type of injury.
Hydraulic hoses have directional handles and are
color coded to help you hookup hoses to your tractor
outlets. Hoses that go to the same remote valve pair
are marked with the same color.
To distinguish hoses on the same hydraulic circuit,
refer to the symbols on the handles. Hose under
extended-cylinder symbol feeds cylinder base ends.
Hose under retracted-cylinder symbol feeds cylinder
rod ends.
Electrical Connections
5. Plug drill electrical lead into tractor seven-pin
connector. If your tractor is not equipped with a
seven-pin connector, contact your dealer for
installation.
Height and Leveling the Drill
Height Setup: Model 3P606NT
1. Initially adjust drill so opener tool bar runs 243/
4in. (62.9 cm) above ground when drill is
lowered in the field.
2. The drive wheel should be in the fourth mounting
hole from the top (factory setting).
The drive may need to be adjusted due to ground
conditions.
3. Level drill with top 3-point link.
Color Hydraulic Function
Blue Transport Lift Cylinders
Keep all components in good repair.
HIGH PRESSURE FLUID HAZARD
To prevent serious injury or death:
Relieve pressure on system before repairing or
adjusting or disconnecting.
Wear proper hand and eye protection when searching
for leaks. Use wood or cardboard instead of hands.
838-094C
WARNING
Hose Handles 31733
Lighting Connector 26467
Initial Field Height,
3P606NT
18546
243/4in.
62.9 cm