Great Plains NG12 Operator Manual
Operator’s and Parts Manual
12’ Native Grass Seeder
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!
NG12
19949
Cover illustration may show optional equipment not supplied with standard unit.
© Copyright 2002 Printed
3/20/2006
202-457M
Table of Contents
Important Safety Information . . . . . . . . . . . . . . . 1
Safety at All Times . . . . . . . . . . . . . . . . . . . . . 5
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . 6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Description of Unit . . . . . . . . . . . . . . . . . . . . . . 9
Intended Usage . . . . . . . . . . . . . . . . . . . . . 9
Model Covered . . . . . . . . . . . . . . . . . . . . . 9
Using This Manual . . . . . . . . . . . . . . . . . . . . . . 9
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 9
Owner Assistance . . . . . . . . . . . . . . . . . . . . . 10
Preparation and Setup . . . . . . . . . . . . . . . . . . . 11
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . 11
Hydraulic Hose Hookup . . . . . . . . . . . . . . . . . 11
Operating Instructions . . . . . . . . . . . . . . . . . . . 12
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . 12
Field Operation . . . . . . . . . . . . . . . . . . . . . . . 13
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Seeding Rate Adjustment . . . . . . . . . . . . . . . 14
Calibrating the Hydraulic Drive . . . . . . . . 14
Seeding Rate Chart . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .16
Maintenance and Lubrication . . . . . . . . . . . . . .17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . .17
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Drive Chain . . . . . . . . . . . . . . . . . . . . . . . 18
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Specifications and Capacities . . . . . . . . . . . . . .19
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Torque Values Chart . . . . . . . . . . . . . . . . . . . .20
Hydraulic Schematics . . . . . . . . . . . . . . . . . . .21
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
© Copyright 2002 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.
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.
202-457M 8/5/2004
Great Plains Manufacturing, Incorporated Trademarks
Printed in the United States of America.
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.
DANGER
!
WARNING
!
CAUTION
!
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2
Be Familiar with Safety Decals
▲ Read thoroughly and understand “Safety
Decals,” page 6.
▲ Read all instructions noted on decals.
Keep Riders Off Machinery
Riders obstruct operator’s view. Riders could be
struck by foreign objects or thrown from machine.
▲ Never allow children to operate equipment.
▲ Keep all bystanders away from machine dur-
ing operation.
Shutdown and Storage
▲ Lower seeder, put tractor in park, turn off
engine, and remove key.
▲ Store seeder in an area where children do not
play.
Use Safety Lights and Devices
Slow-moving tractors and 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 seeder.
OFF
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Transport Machinery Safely
▲ Comply with state and local laws.
▲ Maximum transport speed for seeder is 20
mph. Do not exceed 20 mph. Never travel at a
speed that does not allow adequate control of
steering and stopping. Some rough terrains
require a slower speed.
▲ Check that your tractor has enough ballast to
handle the weight of seeder. Refer to your
tractor operator’s manual for ballast requirements.
▲ Keep clear of overhead power lines and other
obstructions when transporting. Refer to transport dimensions under “Specifications and
Capacities,” page 19.
Important Safety Information
3
Avoid High Pressure Fluids
▲ Escaping fluid under pressure can penetrate
the skin, causing serious injury.
▲ Avoid the hazard by relieving pressure before
disconnecting hydraulic lines.
▲ Use a piece of paper or cardboard, NOT
BODY PARTS, to check for suspected leaks.
▲ Wear protective gloves and safety glasses or
goggles when working with hydraulic systems.
▲ If an accident occurs, see a doctor immedi-
ately. Any fluid injected into the skin must be
surgically removed within a few hours or gangrene may result.
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4
Practice Safe Maintenance
▲ Understand procedure before doing work. Use
proper tools and equipment. Refer to this manual for additional information.
▲ Work in a clean, dry area.
▲ Lower seeder, 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 seeder parts to cool completely.
▲ Do not grease or oil seeder while it is in opera-
tion.
▲ 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
seeder before operation.
OFF
Prepare for Emergencies
▲ Be prepared if a fire starts.
▲ Keep a first aid kit and fire extinguisher handy.
▲ Keep emergency numbers for doctor, ambu-
lance, hospital and fire department near
phone.
911
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Wear Protective Clothing
▲ 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 seeder.
Safety at All Times
Read thoroughly and understand instructions in
this manual before operating seeder. Read all instructions noted on the safety decals.
Important Safety Information
5
▲ Be familiar with all seeder functions.
▲ Operate seeder from the tractor driver’s seat
only.
▲ Do not leave seeder 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 seeder
during hitching.
▲ Keep hands, feet and clothing away from
power-driven parts. Keep away from moving
drive chain.
▲ Wear snug-fitting clothing to avoid entangle-
ment with moving parts.
▲ Watch out for wires, trees and other obstacles
when raising seeder.
▲ Make sure all bystanders are clear of working
area before operating seeder.
▲ Watch your step when walking on seeder
walkboard. Falling from seeder could cause
severe injury or death.
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6
Safety Decals
Your seeder comes equipped with all safety decals in place. They were designed to help you
operate your seeder safely.
▲ 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.
818-055C
Slow Moving Vehicle
▲ When ordering new parts or components, also
request corresponding safety decals.
▲ To install new decals:
1. Clean area on which decal is to be
placed.
2. Peel backing from decal. Press firmly on
surface, being careful not to cause air
bubbles under decal.
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838-266C
Red Reflectors
Reflector at both ends of drill; two reflectors total
838-267C
Daytime Reflectors
Reflector at both ends of drill; two reflectors total
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838-265C
Amber Reflectors
Reflectors on both left and right sides of seeder;
four reflectors total
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Important Safety Information
7
838-094C
High Pressure
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