Great Plains 1205NT Operator Manual
Operator’s Manual
End-Wheel, No-Till Drill
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!
1205NT
14001
Illustrations may show optional equipment not supplied with standard unit.
© Copyright 2012 Printed 03/28/2012
150-131M
Rev. A
Table of Contents
Important Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Description of Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Intended Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Models Covered. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Preparation and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Hitching Tractor to Drill . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Hitch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Hitch Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Hitching to Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Hydraulic Hose Hookup . . . . . . . . . . . . . . . . . . . . . . . . . 17
Rephasing Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Bleeding Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Leveling Drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Prestart Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Field Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Opener Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Marker Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Transporting with Markers . . . . . . . . . . . . . . . . . . . . 24
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Coulter Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Coulter Depth Control . . . . . . . . . . . . . . . . . . . . . . . 25
Coulter Down Pressure . . . . . . . . . . . . . . . . . . . . . . 26
Individual Coulter Adjustment . . . . . . . . . . . . . . . . . 26
Opener Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Opener Down Pressure . . . . . . . . . . . . . . . . . . . . . . 27
Opener Seeding Depth . . . . . . . . . . . . . . . . . . . . . . 27
Disk Scraper Adjustment . . . . . . . . . . . . . . . . . . . . . 28
Gauge Wheel Idler Adjustment . . . . . . . . . . . . . . . . . . . . 28
Seeding Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Select Drive Type. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Set Seed-Rate Handle. . . . . . . . . . . . . . . . . . . . . . . 29
Position Feed-Cup Doors. . . . . . . . . . . . . . . . . . . . . 30
Check Seed Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Seed Rate Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Small Seeds Attachment. . . . . . . . . . . . . . . . . . . . . . . . . 34
Small Seeds Attachment Seed Rate Chart . . . . . . . . . . . . 35
Fertilizer Meter Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Density Conversion Chart . . . . . . . . . . . . . . . . . . . . 36
Fertilizer Rate Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Marker Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Bleeding Marker Hydraulics. . . . . . . . . . . . . . . . . . . 38
Dual Markers with Sequence Valve . . . . . . . . . . . . . 39
Single/Dual Markers without Sequence
Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Folding Speed with Sequence Valve . . . . . . . . . . . . 41
Folding Speed with Needle Valve . . . . . . . . . . . . . . 41
Marker Disk Adjustment. . . . . . . . . . . . . . . . . . . . . . 42
Marker Width Adjustment. . . . . . . . . . . . . . . . . . . . . 42
Seed Lok Lock Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Spring Tine Harrow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Harrow Tine Angle . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Harrow Frame and Tine Adjustment . . . . . . . . . . . . 43
Harrow Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Maintenance and Lubrication . . . . . . . . . . . . . . . . . . . . . . . 47
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Folding Marker Breakaway. . . . . . . . . . . . . . . . . . . . 48
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Feed Cup Drive Sprocket Bore . . . . . . . . . . . . . . . . 49
Drive Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Wheel Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Gauge Wheel Arms . . . . . . . . . . . . . . . . . . . . . . . . . 50
Coulter Hub Bearings. . . . . . . . . . . . . . . . . . . . . . . . 50
Grease Banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Clutches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Clutch Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Small Seeds Drive Sprocket Hanger
Bearing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Small Seeds Feed Cup Drive Sprocket . . . . . . . . . . 52
Marker Link Arm. . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Marker Disk Bearings. . . . . . . . . . . . . . . . . . . . . . . . 53
Marker Hinge Points. . . . . . . . . . . . . . . . . . . . . . . . . 53
Fertilizer Tray Bearings . . . . . . . . . . . . . . . . . . . . . . 53
Fertilizer Felt Barrier Washers . . . . . . . . . . . . . . . . . 54
Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . . . 59
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Torque Values Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Tire Inflation Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Chain Routings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Hydraulic Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Seed Box Sprocket Configuration . . . . . . . . . . . . . . . . . . .64
Seed Box Agitator Sprocket Configuration . . . . . . . . . . . .65
SGS Sprocket Configuration . . . . . . . . . . . . . . . . . . . . . . .66
Fertilizer Sprocket Configuration . . . . . . . . . . . . . . . . . . . .67
Fertilizer with SGS Box Sprocket Configuration . . . . . . . .68
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
© Copyright 1999, 2012 All rights Reserved
Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been taken in the
preparation ofthis manual,Great PlainsManufacturing, Inc.assumes noresponsibility for errors or omissions. Neither is any liability assumed fordamages resultingfrom
the use of the information contained herein. GreatPlains Manufacturing, Inc. reserves theright to revise and improve its products as it sees fit. Thispublication describes
the state of this product at the time of its publication, and may not reflect the product in the future.
Great Plains Manufacturing, Incorporated Trademarks
The following are trademarks of Great Plains Mfg., Inc.: Application Systems, Ausherman, Land Pride, Great Plains
All other brands and product names are trademarks or registered trademarks of their respective holders.
Printed in the United States of America.
3/28/12
150-131M
Important Safety Information
Look for Safety Symbol
The SAFETY ALERT SYMBOL indicates there is
a potential hazard to personal safety involved and
extra safety precaution must be taken. When you
see this symbol, be alert and carefully read the
message that follows it. In addition to design and
configuration of equipment, hazard control and
accident prevention are dependent upon the
awareness, concern, prudence and proper training of personnel involved in the operation,
transport, maintenance and storage of
equipment.
Important Safety Information
1
Be Aware of Signal Words
Signal words designate a degree or level of hazard seriousness.
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. This signal word is limited to the
most extreme situations, typically for machine
components that, for functional purposes, cannot
be guarded.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury, and includes hazards that are exposed when guards are removed. It may also be
used to alert against unsafe practices.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices.
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150-131M
2
1205NT
Be Familiar with Safety Decals
▲ Read and understand “Safety Decals,” page 4,
thoroughly.
▲ Read all instructions noted on the decals.
Keep Riders Off Machinery
Riders obstruct the operator’s view. Riders could
be struck by foreign objects or thrown from the
machine.
▲ Never allow children to operate equipment.
▲ Keep all bystanders away from machine dur-
ing operation.
Shutdown and Storage
▲ Lower drill, put tractor in park, turn off engine,
and remove the key.
▲ Secure drill using blocks and supports pro-
vided.
▲ Detach and store drill in an area where chil-
dren normally do not play.
Use Safety Lights and Devices
Slow-moving tractors and towed implements can
create a hazard when driven on public roads.
They are difficult to see, especially at night.
▲ Use flashing warning lights and turn signals
whenever driving on public roads.
▲ Use lights and devices provided with imple-
ment.
OFF
150-131M
3/28/12
Transport Machinery Safely
Maximum transport speed for implement is 20
mph. Some rough terrains require a slower
speed. Sudden braking can cause a towed load to
swerve and upset.
▲ Do not exceed 20 mph. Never travel at a
speed which does not allow adequate control
of steering and stopping. Reduce speed if
towed load is not equipped with brakes.
▲ Comply with state and local laws.
▲ Do not tow an implement that, when fully
loaded, weighs more than 1.5 times the weight
of towing vehicle.
▲ Carry reflectors or flags to mark drill in case of
breakdown on the road.
▲ Keep clear of overhead power lines and other
obstructions when transporting. Refer to transport dimensions under “Specifications and
Capacities,” page 59.
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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150-131M
4
1205NT
Practice Safe Maintenance
▲ Understand procedure before doing work. Use
proper tools and equipment. Refer to this manual for additional information.
▲ Work in a clean, dry area.
▲ Lower the drill, put tractor in park, turn off
engine, and remove key before performing
maintenance.
▲ Make sure all moving parts have stopped and
all system pressure is relieved.
▲ Allow drill to cool completely.
▲ Disconnect battery ground cable (-) before
servicing or adjusting electrical systems or
before welding on sprayer.
▲ Inspect all parts. Make sure parts are in good
condition and installed properly.
▲ Remove buildup of grease, oil or debris.
▲ Remove all tools and unused parts from drill
before operation.
Prepare for Emergencies
▲ Be prepared if a fire starts.
▲ Keep a first aid kit and fire extinguisher handy.
▲ Keep emergency numbers for doctor, ambu-
lance, hospital and fire department near
phone.
OFF
000
112
911
999
150-131M
Wear Protective Equipment
▲ Wear protective clothing and equipment.
▲ Wear clothing and equipment appropriate for
the job. Avoid loose-fitting clothing.
▲ Because prolonged exposure to loud noise
can cause hearing impairment or hearing loss,
wear suitable hearing protection such as earmuffs or earplugs.
▲ Because operating equipment safely requires
your full attention, avoid wearing radio headphones while operating machinery.
3/28/12
Handle Chemicals Properly
Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals,
plants, soil and property.
▲ Read and follow chemical manufacturer’s
instructions.
▲ Wear protective clothing.
▲ Handle all chemicals with care.
▲ Avoid inhaling smoke from any type of chemi-
cal fire.
▲ Store or dispose of unused chemicals as
specified by chemical manufacturer.
Use A Safety Chain
▲ Use a safety chain to help control drawn
machinery should it separate from tractor
drawbar.
Important Safety Information
5
▲ Use a chain with a strength rating equal to or
greater than the gross weight of towed
machinery.
▲ Attach chain to tractor drawbar support or
other specified anchor location. Allow only
enough slack in chain to permit turning.
▲ Replace chain if any links or end fittings are
broken, stretched or damaged.
▲ Do not use safety chain for towing.
Tire Safety
Tire changing can be dangerous and should be
performed by trained personnel using correct
tools and equipment.
▲ When inflating tires, use a clip-on chuck and
extension hose long enough to you to stand
to one side–not in front of or over tire assembly. Use a safety cage if available.
▲ When removing and installing wheels, use
wheel-handling equipment adequate for
weight involved.
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150-131M
6
1205NT
Safety at All Times
Thoroughly read and understand the instructions
in this manual before operation. Read all instructions noted on the safety decals.
▲ Be familiar with all drill functions.
▲ Operate machinery from the driver’s seat only.
▲ Do not leave drill unattended with tractor
engine running.
▲ Do not dismount a moving tractor. Dismount-
ing a moving tractor could cause serious injury
or death.
▲ Do not stand between the tractor and drill dur-
ing hitching.
▲ Keep hands, feet and clothing away from
power-driven parts.
▲ Wear snug-fitting clothing to avoid entangle-
ment with moving parts.
▲ Watch out for wires, trees, etc., raising drill.
Make sure all persons are clear of working
area.
▲ Do not turn tractor too tightly, causing drill to
ride up on wheels. This could cause personal
injury or equipment damage.
150-131M
3/28/12
Important Safety Information
7
Safety Decals
Your implement comes equipped with all safety
decals in place. They were designed to help you
safely operate your implement.
▲ Read and follow decal directions.
▲ Keep all safety decals clean and legible.
▲ Replace all damaged or missing decals. Order
new decals from your Great Plains dealer.
Refer to this section for proper decal placement.
▲ When ordering new parts or components, also
request corresponding safety decals.
▲ To install new decals:
1. Clean the area on which the decal is to be
placed.
2. Peel backing from decal. Press firmly on
surface, being careful not to cause air
bubbles under decal.
818-055C
Slow Moving Vehicle Label
838-265C
Amber Reflectors
Reflector located on both ends; 4 reflectors total
14007
14008
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150-131M
8
1205NT
838-266C
Red Reflectors
Reflector located on both ends; 2 reflectors total
14009
818-337C
Excessive Speed Hazard
818-398C
Falling Hazard
14002
14003
150-131M
3/28/12
Important Safety Information
9
818-437C
High Pressure Hazard
818-518C
Moving Chain Hazard
Also found on Small Seeds Attachment
14002
14004
3/28/12
818-578C
High Pressure Hazard
14005
150-131M
10
1205NT
818-584C
Transport Hazard
14006
818-587C
General Instructions
818-579C
Pinch Point Hazard
Decal on each optional marker
14002
14564
150-131M
3/28/12
818-580C
Crushing Hazard
Decal on each optional marker
Important Safety Information
14564
11
838-265C
Amber Reflector
Reflector on each optional marker
838-267C
Daytime Reflector
Reflector located on both ends; 2 reflectors total
14564
14009
3/28/12
838-467C
Decal Underside of Lid, Small Seeds Box
13734
150-131M
12
1205NT
Introduction
Great Plains welcomes you to its growing family of
new product owners. This drill has been designed
with care and built by skilled workers using quality
materials. Proper setup, maintenance and safe
operating practices will help you get years of satisfactory use from the machine.
Description of Unit
The 1205NT Drill is a 12' grain drill of end wheel
design which couples Great Plains spring mounted coulter with a straight arm design of our solid
stand opener to achieve no-till drilling capabilities.
The end wheel design keeps the ground-working
components in line with the end wheels for accurate coulter depth and seed placement over
uneven terrain and allows the unit to follow field
curves without side-loading the openers.
Intended Usage
This machine is intended to be used primarily for
No-Till drilling. It can easily be adapted for conventional drilling applications.
Models Covered
1205NT
14001
150-131M
3/28/12
Using This Manual
This manual will familiarize you with safety, assembly, operation, adjustments, troubleshooting
and maintenance. Read this manual and follow
the recommendations to help ensure safe and efficient operation.
The information in this manual is current at printing. Some parts may change to assure top
performance.
Definitions
The following terms are used throughout this
manual.
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.
Introduction
13
A crucial point of information related to the preceding
topic. For safe and correct operation, read and follow
the directions provided before continuing.
NOTE: Useful information related to the preceding topic.
3/28/12
150-131M
14
1205NT
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.
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 as shown in Figure
1.
Record your drill model and serial number here for
quick reference:
Model Number:__________________________
Serial Number: ___________________________
Your Great Plains dealer wants you to be satisfied
with your new machine. If you do not understand
any part of this manual or are not satisfied with the
service received, please take the following
actions.
1. Discuss the matter with your dealership service manager. Make sure they are aware of
any problems so they can assist you.
2. If you are still unsatisfied, seek out the owner
or general manager of the dealership.
3. For further assistance write to:
Product Support
Great Plains Mfg. Inc., Service Department
PO Box 5060
Salina, KS 67402-5060
Figure 1
Serial Number Plate
14566
150-131M
3/28/12
Preparation and Setup
This section will help you prepare your tractor and
drill for use. Before going to the field, you must
hitch a tractor to the drill, hook up hydraulics and
check that hydraulics have been bled.
Prestart Checklist
1. Read and understand “Important Safety Infor-
mation,” page 1.
2. Check that all working parts are moving free-
ly, bolts are tight, and cotter pins are spread.
3. Check that all grease fittings are in place and
lubricated. Refer to “Lubrication,” page 49.
Preparation and Setup
15
4. Check that all safety decals and reflectors are
correctly located and legible. Replace if damaged. See “Safety Decals,” page 7.
5. Inflate tires to pressure recommended and
tighten wheel bolts as specified. See “Appendix,” page 60.
Hitching Tractor to Drill
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.
Hitch Assembly
1. See Figure 2. Insert upper hitch plate (1) into
clevis hitch (2) with a spacer tube (3) on each
side of ball swivel.
2. Bolt in place with 1 x 5 1/2 inch bolt (4), flat
washer (5) and nylock nut (6).
Figure 2
Hitch Assembly
13939
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150-131M
16
1205NT
Hitch Height
1. For proper field operation, drill tongue should
run level in field position. See Figure 3.
a. With drill in field position, adjust tongue
jack to level tongue.
b. Measure tractor drawbar height to deter-
mine proper hitch height on drill.
c. Attach hitch to tongue with two 3/4 x 6
inch bolts (1), lock washers (2) and nuts
(3).
NOTE: Mounting holes in drill hitch are offset so
hitch can be turned over and attached in three different positions, giving six different hitch heights.
NOTE: When hitching drill to a different tractor,
check for a difference in drawbar heights. If
heights are different, readjust accordingly.
Hitching to Tractor
Refer to Figure 4.
Figure 3
Hitch Height
13940
1. Back tractor to drill. Using the screw jack, adjust drill tongue to get drawbar under upper
hitch plate (1).
2. Align rear hole in upper hitch plate with large
hole in drawbar. Place lower hitch plate (4)
under drawbar and attach to upper hitch plate
with two 5/8 x 4 inch bolts (5), flat washers (6)
and nylock nuts (7).
3. Bolt top upper hitch plate through hole in
drawbar to lower hitch plate with 1 x 5 1/2 inch
bolt (8), USS flat washer (3) and nylock nut
(2).
4. Securely attach safety chain to drill hitch with
a 3/4 x 2 1/4 inch bolt (10), safety washer (11),
lock washer (12) and nut (13). Then attach
chain to tractor drawbar.
5. Store jack on top of tongue as shown in Figure 5.
Figure 4
Hitching to Tractor
13944
150-131M
Figure 5
Jack Storage Position
13940
3/28/12
Hydraulic Hose Hookup
High Pressure Fluid Hazard:
Only trained personnel should work on system
hydraulics!
Escaping fluid under pressure can have sufficient
pressure to 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 leaks. Wear
protective gloves and safety glasses or goggles when
working with hydraulic systems. If an accident
occurs, seek immediate medical attention from a physician familiar with this type of injury.
Current Style Color Coded Hose Handles
Great Plains hydraulic hoses have color coded
handle grips to help you hook up hoses to your
tractor outlets. Hoses that go to the same remote
valve are marked with the same color.
Preparation and Setup
17
Color Hydraulic Function
Blue Transport Lift Cylinders
Green Marker Cylinders
To distinguish hoses on the same hydraulic circuit, refer to the symbol molded into the handle
grip. Hoses with an extended-cylinder symbol
feed cylinder base ends. Hoses with a retracted-cylinder symbol feed cylinder rod ends.
Older Style Hoses with Color Ties
Hoses that go to the same remote valve are
marked with the same color tie.
Color Hydraulic Function
Blue Transport Lift Cylinders
Orange Marker Cylinders
To distinguish hoses on the same hydraulic circuit, refer to plastic hose holder. Hose under
extended-cylinder symbol feeds cylinder base
ends. Hose under retracted-cylinder symbol
feeds cylinder rod ends.
31733
Figure 6
Color Coded Hose Grips
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Figure 7
Older Style Hydraulic Hose Label
150-131M
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1205NT
Rephasing Cylinders
The lift cylinders may, after a period of time, get
out of time or phase. The effects of this can be
seen when one side of the drill is running too low
or too high because its lift cylinder is either over
extended or not retracted compared to the other
lift cylinder.
To rephase the cylinders, raise drill completely
and hold tractor hydraulic lever on for a few seconds to give cylinders time to rephase.
Each time drill is raised out of ground momentarily
reverse hydraulic lever immediately after rephasing to allow cylinders to retract about 1/2 inch.
This will help in maintaining a level drill.
NOTE: Understand that having cylinders become
gradually out of time is different than having air
trapped in the system from improper bleeding.
Each condition is corrected differently.
150-131M
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Bleeding Hydraulics
High Pressure Fluid Hazard:
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.
Check that tractor hydraulic reservoir is full.
The drill lifting system is equipped with rephasing
type hydraulic cylinders that require a special procedure for bleeding air from the hydraulic circuits.
Read and follow this procedure carefully. Rephasing type cylinders will not function properly with air
in hydraulic circuit.
Preparation and Setup
19
1. Check hydraulic fluid in tractor reservoir and
fill reservoir to proper level. Drill-system capacity is about 1 gallon. Add fluid to system as
needed. A low reservoir level may draw air
back into the system, causing jerky or uneven
cylinder movements.
2. With drill attached to tractor, jack drill up and
support frame at ends near gauge wheels.
3. With drill raised and supported, unpin cylinders from gauge wheel arms and frame. Turn
cylinders "rod end up". Wire or otherwise
safely support rod ends higher than base
ends.
NOTE: In order to prevent trapped air pockets, rod
end must be higher than any other part of cylinder
during bleeding operation.
4. With tractor engine idling, engage tractor hydraulics to extend cylinder rods. When cylinder rods are completely extended, hold
remote lever on for one minute.
5. Retract cylinders. Extend cylinders again and
hold remote lever on for one more minute. Repeat this step two more times to completely
bleed system.
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150-131M
20
1205NT
6. Repin cylinders to drill frame and gauge
wheel arm with transport cylinder locks in
place. If any air still is trapped in either cylinder, the cylinder will have a spongy, erratic
movement and drill will not raise evenly. If
necessary, repeat bleeding process.
7. Refill tractor hydraulic fluid reservoir to its
proper level.
NOTE: After the drill is raised, a slight settling will
occur due to the action of the rephasing cylinders.
Leveling Drill
See Figure 8.
1. Loosen locknuts (2) and adjust cylinder eyebolts (1) so there is initially about 3 1/16 inch
of threads above mounting plate.
2. Raise drill with hydraulics until openers and
coulters are 1 to 2 inches off the ground.
3. Measure height of coulter tube from ground
on both ends of drill.
4. Adjust eyebolt to level drill from end to end.
5. Tighten nuts on eyebolts when drill is level.
Figure 8
13941
Leveling Drill
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Operating Instructions
This section covers general operating procedures. Experience, machine familiarity and the
following information will lead to efficient operation and good working habits. Always operate
farm machinery with safety in mind.
Prestart Checklist
High Pressure Fluid Hazard:
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.
Operating Instructions
21
1. Carefully read “Important Safety Information,”
page 1.
2. Lubricate drill as indicated under “Lubrication,” page 47.
3. Check all tires for proper inflation. See “Appendix,” page 60.
4. Check all bolts, pins and fasteners. Torque as
shown in “Appendix,” page 60.
5. Check drill for worn or damaged parts. Repair
or replace parts before going to the field.
6. Check hydraulic hoses, fittings and cylinders
for leaks. Repair or replace before going to
the field.
7. Rotate both gauge wheels to see that the
drive and meters are working properly and
free from foreign material.
8. Retorque bolts shown in Figure 9 to 125 ± 20,
ft. lb. Check and retorque these bolts every
few hours after this, during the first days of operation.
Figure 9
13888
Press Wheel Mounting Bolts
3/28/12
150-131M
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