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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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.
19950
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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8
818-860C
Moving Chain Hazard
818-719C
General Instructions
19949
19949
838-428C
Important to prevent damage
838-634C
Important for native grass mix only
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Introduction
Great Plains welcomes you to its growing family of
new product owners. This seeder 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 NG12 is a mounted seeding implement designed to seed native grasses. A variable-rate
hydraulic motor drives seeding. Seeding rates are
adjusted by varying the speed of the hydraulic
motor and tractor speed.
Intended Usage
Use this seeder to seed fluffy or native grasses in
a wide variety of applications.
Introduction
9
Model Covered
NG12
Using This Manual
This manual will familiarize you with safety, 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
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.
IMPORTANT: A crucial point of information related to the preceding topic. For safe and correct operation, read and follow the directions
provided before continuing.
19949
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 shown.
Record your seeder 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
seeder for use. Before field operation, you must hookup the hydraulic hoses.
Prestart Checklist
1. Read and understand “Important Safety Information,” beginning on page 1.
2. Check that all working parts are moving freely,
bolts are tight, and cotter pins are spread.
3. Check that all safety decals and reflectors are correctly located and legible. Replace decals if damaged. See “Safety Decals,” page 6.
Preparation and Setup
11
Hydraulic Hose Hookup
!
WARNING
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.
Refer to Figure 2
When hooking hydraulic hoses to tractor hook hose
coming from flow-control valve on seeder to the pressurized side of the remote circuit. Hook return line to
sump.
Check that seed-cup shaft on seeder is rotating in the
correct direction. When standing on the left-hand side
of seeder, the shaft should rotate counterclockwise. If
necessary, switch hoses at outlets.
17992
Figure 2
Hydraulic Hookup
NOTE: Customer must supply hoses to the sump
and to the pressure side of the hydraulic circuit.
NOTE: For tractors with open center hydraulic systems, refer to your tractor manufacturer’s recommendation before hooking up the hydraulics on
this unit.
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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
!
WARNING
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.
1. Read “Important Safety Information,” page 1,
carefully.
2. Check all bolts, pins and fasteners. Torque as
specified on “Torque Values Chart,” page 20.
3. Lubricate as recommended areas listed under “Lubrication,” page 18.
4. Check seeder for worn or damaged parts. Repair or replace parts before going to the field.
5. Check hydraulic hoses and fittings for leaks.
Repair or replace before going to the field.
6. Check that seed cups and drive are working
properly and free from foreign material.
!
Watch your step when walking on seeder. Falling from
seeder could cause severe injury or death.
DANGER
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Field Operation
Refer to Figure 3
1. Hook hydraulic hoses to tractor outlets.
2. Fill seeder box with clean seed.
3. Set and calibrate seeding rate as explained
under “Seeding Rate Adjustment,” page 14.
4. Pull forward, lower seeder, engage hydraulic
drive and begin seeding.
Transporting
!
WARNING
Transporting seeder at high speeds or with a tractor
without enough ballast could lead to loss of vehicle
control. Loss of vehicle control could lead to serious
road accidents, injury and death. Do not exceed 20
mph. Check that your tractor has enoughballast. Refer
to tractor operator’s manual for ballast requirements.
Operating Instructions
Figure 3
Hydraulic Hookup
13
17992
Before transporting seeder, follow and check
these items:
Unload seeder box. The seeder can be transported with a full box of grain, but the added
weight will increase stopping distance and decrease maneuverability. Unload seeder box
before transporting if at all possible.
Road rules. Comply with all federal, state and local laws when traveling on public roads.
Clearance. Remember that the seeder is wider
than the tractor. Allow for safe clearance.
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Adjustments
Seeding Rate Adjustment
To calibrate the seeding rate, the seeder must be
hooked to the tractor that will be used in the field
and the hydraulic drive must be hooked to the
tractor remotes.
Calibrating the Hydraulic Drive, Drop Seeder
box
1. Determine your desired planting ground
speed in mph and your seeding rate in lbs/
acre.
2. Look at the seed rate chart for your desired
planting speed, and choose the seed cup
shaft rpm for the desired rate.
3. With the tractor parked and in neutral, adjust
tractor throttle to field rpm and engage hydraulic drive.
4. Set the seed cup shaft rpm on your Drop
Seeder box using a tachometer.
5. Place the desired seed for calibration over 5
seed cups in your Drop Seeder box. Place
catch containers below the five seed cups.
6. Run the seed drive for a known amount of
time (i.e. 5 minutes) or until you catch a
weighable seed sample. Record the time.
Weigh the total amount of seed caught from
the 5 seed cups in pounds using an accurate
scale.
7. Determine the actual seeding rate of the
caught seed using the equation at the bottom
of this page.
Refer to Figure 4
8. Stop hydraulic drive. If shaft is turning too
slowly or quickly, loosen black knob and adjust flow control on hydraulic drive. Move lever
down to increase rpms. Move lever up to reduce rpms.
9. When satisfied with flow-control setting, lock
black knob.
Note: If the actual seeding rate is not equivalent to
your desired seeding rate, increase or decrease
the seed cup shaft rpm accordingly. Repeat steps
3 thru 6 until desired seeding rate is achieved.
Figure 4
Flow Control Dial
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Seeding rate (lbs/acre)=
(Weight of seed caught in lbs.) x (115.5)
(Amount of time to catch seed in minutes) x (Planting ground speed in mph)
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Seeding Rate Chart
Native Grass Seed Rate Chart*
Ground
Speed
(MPH) 5 10 15 20 25 30 35 40 45 50
2 10.2 20.4 30.6 40.8 51.0 61.3 71.5 81.7 91.9 102.1
3 6.8 13.6 20.4 27.2 34.0 40.8 47.6 54.5 61.3 68.1
4 5.1 10.2 15.3 20.4 25.5 30.6 35.7 40.8 45.9 51.0
5 4.1 8.2 12.3 16.3 20.4 24.5 28.6 32.7 36.8 40.8
6 3.4 6.8 10.2 13.6 17.0 20.4 23.8 27.2 30.6 34.0
7 2.9 5.8 8.8 11.7 14.6 17.5 20.4 23.3 26.3 29.2
8 2.6 5.1 7.7 10.2 12.8 15.3 17.9 20.4 23.0 25.5
9 2.3 4.5 6.8 9.1 11.3 13.6 15.9 18.2 20.4 22.7
10 2.0 4.1 6.1 8.2 10.2 12.3 14.3 16.3 18.4 20.4
(Pounds/Acre)
Seed Cup Shaft (rpm)
Adjustments
15
*This chart is based upon a native grass mix of: 18% Big Bluestem, 14% Sideoats Grama,
10% Indian grass, 18% Little Bluestem, 10% Canadian Wild rye, 4% Switchgrass 8% Virginia Wild rye and 18% Wheatgrass.
IMPORTANT!
To prevent damage to the Native Grass box
agitator and its drive components:
Do not transport drill with Native Grass box
loaded with seed.
IMPORTANT!
FOR NATIVE GRASS MIX ONLY
Powdered graphite (PN: 821-042C) must be
mixed with the native grass seed mix for proper
seed flow and metering.
Recommended usage:
Sprinkle 1/3 cup of graphite per 6 ft. of seed
box on top of the native grass seed mix.
For humid planting environments, double or
triple rate as needed.
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Troubleshooting
Problem Solution
Actual metering rate is different than
desired
Check seed-rate chart for proper seed-cup-shaft rpms for your seeding
rate. Refer to “Seeding Rate Chart,” page 15.
Adjust flow control on hydraulic drive. Refer to “Seeding Rate Adjustment,” page 14.
Calibrate flow to hydraulic drive when drill box is full of seed.
Refer to “Seeding Rate Adjustment,” page 14.
Check that seed-cup shaft is rotating is in the correct direction. If not,
reverse direction of flow to hydraulic drive by switching hoses at tractor outlets. Refer to “Hydraulic Hookup,” page 11.
Add powdered graphite to the seed mixture. This helps the seed flow
more uniformly.
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Maintenance and Lubrication
Maintenance
Proper servicing and maintenance is the key to
long seeder life. With careful and systematic inspection, you can avoid costly maintenance,
downtime and repair.
Always turn off and remove tractor key before
making any adjustments or performing any
maintenance.
!
WARNING
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.
OFF
Maintenance and Lubrication
17
1. After using seeder for several hours, check all
bolts to be sure they are tight. Adjust idlers to
remove excess slack from drive chain.
2. Lubricate areas listed under “Lubrication,”
page 18.
3. Replace any worn, damaged or illegible safety decals. Order new decals from your Great
Plains dealer. Refer to “Safety Decals,” page
6.
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Lubrication
Multipurpose
spray lube
Drive Chain
Type of Lubrication: Chain lube
Quantity = Coat thoroughly
Storage
As
Required
Multipurpose
grease lube
19949
Multipurpose
oil lube
50
Intervals at which
lubrication is required
!
WARNING
Always park seeder away from areas where children
play.
If possible, store seeder inside for longer life.
1. Clean seeder as necessary. Be sure the seed
box is cleaned completely before storing.
2. Lubricate as indicated under “Lubrication,”
page 18.
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Specifications and Capacities
Seed Cups per Seeder
Weight, Native Grass Seeder Alone
Working Width
Transport Width
Height, Native Grass Seeder Alone
Box Capacity
Tractor Requirements
Specifications and Capacities
NG12
14
1,000 pounds (appx.)
12 feet
12 feet 1 inches
30 inches
12 bushels
One hydraulic remote
19
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Appendix
Torque Values Chart
Bolt Head Identification
Bolt Head Identification
Bolt Size
(Inches)
in-tpi
Bolt Size
Grade 2 Grade 5
1
N · m2ft-lb3N · m ft-lb N · m ft-lb mm x pitch4N · m ft-lb N · m ft-lb N · m ft-lb
Grade 8
(Metric)
5.8 8.8 10.9
Class 5.8 Class 8.8 Class 10.9
1/4" - 20 7.4 5.6 11 8 16 12 M 5 X 0.8 436597
1/4" - 28 8.5 6 13 10 18 14 M 6 X 1 7 5 11 8 15 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
1 3/8" - 12 1010 745 2270 1670 3680 2710
1 1/2" - 6 1180 870 2640 1950 4290 3160
1 1/2" - 12 1330 980 2970 2190 4820 3560
1
in-tpi = nominal thread diameter in inches-threads
4
mm x pitch = nominal thread diameter in millimeters
2
N· m = newton-meters
3
ft-lb= foot pounds
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
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Hydraulic Schematics
Appendix
21
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17992
Note: Customer must supply hoses to the sump and to the pressure side of the hydraulic
circuit.
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NG-12 Drop Seeder Components
Parts
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NG-12 Drop Seeder Components
1. 801-035C SCREW SET 5/16-18 SKT KP X 3/8
2. 118-494D LOCK COLLAR 3/4 HEX BORE
3. 803-008C NUT HEX 5/16-18 PLT
4. 804-009C WASHER LOCK SPRING 5/16 PLT
5. 822-041C FLANGETTE 47 MST
6. 822-128C BEARING 3/4HEX B 47MM SPHER OD
7. 802-282C RHSNB 5/16-18X1 GR5
8. 202-205D NG ADGITATOR SHAFT
9. 808-086C SPKT 40B30 X 3/4 HEXBORE W/ SS
10. 136-054D CHAIN RL #40 89 PITCHES
11. 202-456H NG SPROCKET WELDMENT
12. 802-152C HHCS 1/4-20X2 GR5
13. 804-006C WASHER LOCK SPRING 1/4 PLT
14. 803-006C NUT HEX 1/4-20 PLT
15. 817-499C NATIVE GRASS IDLER
16. 804-016C WASHER FLAT 1/2 SAE PLT
17. 802-044C HHCS 1/2-13X4 GR5
18. 803-169C NUT HEX FLG. LOCK 1/2-13 PLT.
19. 817-500C PLASTIC HOLE PLUG 7/16
20. 202-204D NG CUP SHAFT
21. 802-017C HHCS 3/8-16X1 GR5
22. 804-013C WASHER LOCK SPRING 3/8 PLT
23. 808-272C SPKT 40B16 X 1 W/KW & SS
24. 810-407C HYD MOTOR EATON
25. 818-860C DECAL WARNING MOVING CHAIN
26. 838-265C DECAL REFLECTOR AMBER 1 1/2X9
27. 818-719C DECAL CAUTION GENERAL INSTR
28. 838-094C DECAL WARNING HYD PRESS LONG
29. 802-097C HHCS 1/4-20X2 1/2 GR5
30. 202-202D FLOW CONTROL MOUNT
31. 806-001C U-BOLT 3/8-16 X 2 X 4
32. 803-014C NUT HEX 3/8-16 PLT
33. 804-016C WASHER FLAT 1/2 SAE PLT
34. 803-006C NUT HEX 1/4-20 PLT
35. 202-185D NG ADGITATOR PADDLE
36. 810-405C FLOW CONTROL VALVE 8 GPM
117-285D REP BY 810-405C
37. 802-448C HFSS 1/4-20X2 GR5
38. 803-088C NUT HEX LOCK 1/4-20 FLG
39. 811-758C HH1/2R2 024 7/8MORB 7/8MORB90
40. 811-502C AD 7/8MORB 3/4FJIC
41. 811-078C TE 3/4MJIC
42. 811-761C HH1/2R2 020 7/8MORB90 3/4FJIC
43. 806-168C U-BOLT 1/2-13 X 2 1/32 X 4 1/2
44. 803-020C NUT HEX 1/2-13 PLT
45. 804-015C WASHER LOCK SPRING 1/2 PLT
46. 202-203D MOUNT PLATE
47. 821-042C POWDERED GRAPHITE 1 LB BOTTLE
48. 841-059C AD 3/4 MJIC 3/4 FJIC
Parts
23
8/5/2004
202-457M
NG12
24
NG-12 Drop Seeder Components Cont.
19946
202-457M
8/5/2004
NG-12 Drop Seeder Components Cont.
1. 110-015D LID LATCH STRAP
2. 110-016D LID HINGE STRAP SPACER
3. 119-224D LID LATCH
4. 807-001C SPRING EXT LID HING
5. 802-007C HHCS 5/16-18X3/4 GR5
6. 803-001C NUT HEX 10-24 PLT
7. 805-014C PIN CLEVIS.491 X 2 49/64 USEL
8. 805-019C PIN COTTER 5/32 X 1 PLT
9. 802-167C HHCS 1/4-20X1 1/2 GR5
10. 803-007C NUT LOCK 1/4-20 PLT
11. 801-028C SCREW RD HD 5/16-18 X 1/2 PLT
12. 890-015C ANCHOR BRACKET
13. 800-107C SNAP RING INT 2.165
14. 802-196C HFSS 1/4-20X5/8 GR5
15. 816-004C VINYL SEAL 3/8 X 1/2 (PER FT)
16. 816-001C VINYL SEAL 3/8 X 5/8/FT
17. 119-146H 12’ BOX LID WELDMENT
18. 838-442C DECAL NATIVE GRASS SEED RATE
19. 838-428C DECAL NATIVE GRASS IMPORTANT
20. 838-265C DECAL REFLECTOR AMBER 1 1/2X9
21. 838-266C DECAL REFLECTOR RED 1 1/2X9
22. 838-267C DECAL REFLECTR DAYTIME 1 1/2X9
23. 822-071C BEARING CAST 3/4 - 2 BOLT
24. 802-010C HHCS 5/16-18X1 1/4 GR5
25. 804-009C WASHER LOCK SPRING 5/16 PLT
26. 803-008C NUT HEX 5/16-18 PLT
27. 803-088C NUT HEX LOCK 1/4-20 FLG
28. 803-001C NUT HEX 10-24 PLT
29. 804-004C WASHER INTERNAL STAR #10 PLT
30. 816-051C GASKET GRASS SEED METER WHEEL
31. 801-003C SCREW RD HD SLT 10-24X1/2 PLT
32. 202-055D GRASS SEED METER WHEEL COVER
33. 806-132C U-BOLT 3/8-16 X 3 1/32 X 2 3/4
34. 123-563D SMV MOUNT BRACKET
35. 818-055C DECAL SLOW MOVING-GALV. BACKED
36. 802-159C HHCS 5/16-18X1 GR5
37. 804-010C WASHER FLAT 5/16 USS PLT
38. 802-005C HHCS 1/4-20X1 GR5
39. 838-441C DECAL NG-12
40. 801-018C SCREW RD HD 1/4-20 X 5/8
41. 822-057C BEARING PILLOW BLK PB 3/4W/HSG
42. 804-006C WASHER LOCK SPRING 1/4 PLT
43. 803-006C NUT HEX 1/4-20 PLT
44. 202-453K 12’ NG TRAY ASSEMBLY
45. 804-007C WASHER FLAT 1/4 SAE PLT
46. 202-007D GRASS METER SPROCKET
47. 801-023C SCREW SET SH 3/8-16X3/8 TYPE C
48. 812-054C CASTING GRASS SEED FEEDER CUP
49. 800-004C SNAP RING EXT BASIC 1.880
50. 202-183D NG BOX SHAFT
51. 816-008C RUBBER LID LATCH
52. 804-013C WASHER LOCK SPRING 3/8 PLT
53. 803-014C NUT HEX 3/8-16 PLT
54. 838-160C DECAL 3 COLOR STRIPE 2.50 WIDE
55. 838-161C DECAL LOGO&GP F/STRIPE 4 X 24
56. 800-144C CLAMP WRM DRV #40 SS (2.06-3)
57. 202-206D NG SEEDER HOSE
58. 202-207D NG BEARING HOUSING
59. 802-014C HHCS 3/8-16X3/4 GR5
60. 804-012C WASHER FLAT 3/8 SAE PLT
61. 822-103C BRG 30MM B X 55MM OD
62. 838-634C DECAL GRAPHITE W/NATIVE GRASS
Parts
25
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202-457M
26
NG12
Warranty
Great Plains Manufacturing, Incorporated warrants to the original purchaser that this seeding equipment will be free from defects in material
and workmanship for a period of one year from the date of original purchase when used as intended and under normal service and conditions
for personal use; 90 days for commercial or rental purposes. This Warranty is limited to the replacement of any defective part by Great Plains
Manufacturing, Incorporated 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.
This Warranty does not apply to any part or product which in Great
Plains’ judgement shall have been misused or damaged by accident or
lack of normal maintenance or care, or which has been repaired or altered in a way which adversely affects its performance or reliability, or
which has been used for a purpose for which the product is not designed. This Warranty shall not apply if the product is towed at a speed
in excess of 20 miles per hour.
Claims under this Warranty must be made to the dealer which originally
sold the product and all warranty adjustments must by made through
such dealer. Great Plains reserves the right to make changes in materials or design of the product at any time without notice.
This Warranty shall not be interpreted to render Great Plains liable for
damages of any kind, direct, consequential, or contingent, to property.
Furthermore, Great Plains shall not be liable for damages resulting from
any cause beyond its reasonable control. This Warranty does not extend to loss of crops, losses caused by harvest delays or any expense
or loss for labor, supplies, rental machinery or for any other reason.
No other warranty of any kind whatsoever, express 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.
This Warranty is not valid unless registered with Great Plains Manufacturing, Incorporated within 10 days from the date of original purchase.
202-457M
8/5/2004
Index
C
Charts
seeding rate. . . . . . . . . . . . . . 15
torque values . . . . . . . . . . . . . 20
F
Flow-control valve . . . . . . . . . . . . 14
H
Hydraulic drive
flow control . . . . . . . . . . . . . . 14
seeding rate adjustment . . . . 14
Hydraulic hoses
hookup. . . . . . . . . . . . . . . . . . 11
Hydraulic pressure safety . . . . . . . 3
Hydraulic schematics . . . . . . . . . . 21
L
Lubrication . . . . . . . . . . . . . . . . . . 18
drive chain . . . . . . . . . . . . . . . 18
M
Maintenance . . . . . . . . . . . . . . . . 17
Maintenance safety . . . . . . . . . . . . 4
Seed cup
clean out . . . . . . . . . . . . . . . . 15
door. . . . . . . . . . . . . . . . . . . . 15
handles . . . . . . . . . . . . . . . . . 15
shaft . . . . . . . . . . . . . . . . 11, 14
Seeding rate adjustment . . . . . . . 14
Storage . . . . . . . . . . . . . . . . . . 2, 18
T
Transport safety . . . . . . . . . . . . . . 3
Transporting . . . . . . . . . . . . . . . . 13
O
Operating instructions . . . . . . . . . 12
field operation . . . . . . . . . . . . 13
Operating safety. . . . . . . . . . . . . . . 5
P
Preparation . . . . . . . . . . . . . . . . . 11
Parts. . . . . . . . . . . . . . . . . . . . . . . 22
S
Safety decals . . . . . . . . . . . . . . . 2, 6
maintenance . . . . . . . . . . . . 173
Safety lights . . . . . . . . . . . . . . . . . . 2
Seed calibration
See Seeding rate adjustment
Seed cracking . . . . . . . . . . . . . . . 15
2/27/2002
202-457M
Great Plains Manufacturing, Inc.
Corporate Office: PO. Box 5060
Salina, Kansas 67402-5060 USA
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