Read the operator manual entirely. When you see this symbol, the subsequent instructions and warnings are serious - follow without exception. Your life and the lives of others depend on it!
Illustrations may show optional equipment not supplied with standard unit or may depict similar models where a topic is identical.
Important Safety Information.................................................1Safety Decals ....................................................................6
Introduction...........................................................................11Description of Unit ...........................................................11
Intended Usage ........................................................11Models Covered .......................................................11Document Family .....................................................11Using This Manual....................................................11Definitions.................................................................11
Preparation and Setup .........................................................13Hitching Tractor to Drill ....................................................13
Small Seeds Attachment..........................................31Equations for calibrating seed rate:..........................31
Small Seeds Attachment Seed Rate Chart .....................32Acremeter Operation............................................................33
Gauge-Wheel Drive Adjustment......................................33Fertilizer Meter Rate........................................................34
Equations for calibrating seed rate:..........................34Fertilizer Rate Chart (pounds per acre)...........................35
Marker Adjustments .................................................36Bleeding Marker Hydraulics .....................................36Dual Markers with Sequence Valve .........................36Single/Dual Markers without Sequence Valve .........37Folding Speed with Sequence Valve .......................38Folding Speed with Needle Valve ............................38Marker Disk Adjustment ...........................................39Marker Width Adjustment.........................................39
Seed Lok Lock Up ...........................................................39Spring Tine Harrow .........................................................40
Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has beentaken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumedfor damages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its productsas it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.
Trademarks of Great Plains Manufacturing, Inc. include: AccuShot, Max-Chisel, Row-Pro, Singulator Plus, Short Disk, Swath Command, Terra-Tine, Ultra-Chisel, and X-Press.
Registered Trademarks of Great Plains Manufacturing, Inc. include: Air-Pro, Clear-Shot, Discovator, Great Plains, Land Pride, MeterCone, Nutri-Pro, Seed-Lok, Solid Stand, Terra-Guard, Turbo-Chisel, Turbo-Chopper, Turbo-Max, Turbo-Till, Ultra-Till, Whirlfilter, and Yield-Pro.
Brand and Product Names that appear and are owned by others are trademarks of their respective owners.Printed in the United States of America
1205NT Cover Index iii
Harrow Tine Angle....................................................40Harrow Frame and Tine Adjustment ........................40Harrow Chain ...........................................................40
Troubleshooting ...................................................................41Maintenance and Lubrication ..............................................43
General Maintenance ......................................................43Folding Marker Breakaway.......................................44
Appendix A - Reference Information ..................................52Specifications and Capacities..........................................52Torque Values Chart .......................................................53Tire Inflation Chart ...........................................................54
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1205NT Table of Contents Index 1
Important Safety Information
Look for Safety SymbolThe 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.
Be Aware of Signal WordsSignal 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.
Prepare for EmergenciesBe prepared if a fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctor, ambulance, hospital and fire department near phone.
Be Familiar with Safety DecalsRead and understand “Safety Decals” on page 6, thoroughly.
Read all instructions noted on the decals.
Keep decals clean. Replace damaged, faded and illegible decals.
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1205NT Table of Contents Index Important Safety Information 2
Wear Protective EquipmentGreat Plains advises all users of chemical pesticides or herbicides to use the following personal safety equipment.
Waterproof, wide-brimmed hat
Waterproof apron.
Face shield, goggles or full face respirator.
Goggles with side shields or a full face respirator is required if handling or applying dusts, wettable powders, or granules or if being exposed to spray mist.
Cartridge-type respirator approved for pesticide vapors unless label specifies another type of respirator.
Waterproof, unlined gloves. Neoprene gloves are recommended.
Cloth coveralls/outer clothing changed daily; waterproof items if there is a chance of becoming wet with spray
Waterproof boots or foot coverings
Do not wear contaminated clothing. Wash protective clothing and equipment with soap and water after each use. Personal clothing must be laundered separately from household articles.
Clothing contaminated with certain pesticides must be destroyed according to state and local regulations. Read chemical label for specific instructions.
Wear clothing and equipment appropriate for the job. Avoid loose-fitting clothing.
Prolonged exposure to loud noise can cause hearing impairment or loss. Wear suitable hearing protection such as earmuffs or earplugs.
Avoid wearing entertainment headphones while operating machinery. Operating equipment safely requires the full attention of the operator.
Avoid High Pressure FluidsEscaping fluid under pressure can penetrate the skin, causing serious injury. This planter requires a Power-Beyond port, which is always under pressure when the tractor is running.
Avoid the hazard by relieving pressure at other remotes, and shutting down tractor before connecting, disconnecting or inspecting 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, seek immediate medical assistance from a physician familiar with this type of injury.
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1205NT Table of Contents Index Important Safety Information 3
Use A Safety ChainUse a safety chain t1o help control drawn machinery should it separate from tractor draw-bar.
Use a chain with a strength rating equal to or greater than the gross weight of towed machinery.
Attach chain to tractor draw-bar support or specified anchor location. Allow only enough slack in chain for turns.
Replace chain if any links or end fittings are broken, stretched or damaged.
Do not use safety chain for towing.
Keep Riders Off MachineryRiders 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 during operation.
Use Safety Lights and DevicesSlow-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 implement.
Transport Machinery SafelyMaximum transport speed for implement is 20 mph (32 kph), 13 mph (22 kph) in turns. 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 planter 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” on page 52.
Do not fold or unfold the planter while the tractor is moving.
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1205NT Table of Contents Index Important Safety Information 4
Handle Chemicals ProperlyAgricultural chemicals can be dangerous. Improper use can seriously injure persons, animals, plants, soil and property.
Read and follow chemical supplier instructions.
Wear protective clothing.
Handle all chemicals with care.
Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals, plants, soil and property.
Inhaling smoke from any type of chemical fire is a serious health hazard.
Store or dispose of unused chemicals as specified by the chemical manufacturer.
If chemical is swallowed, carefully follow the chemical manufacturer’s recommendations and consult with a doctor.
If persons are exposed to a chemical in a way that could affect their health, consult a doctor immediately with the chemical label or container in hand. Any delay could cause serious illness or death.
Dispose of empty chemical containers properly. By law rinsing of the used chemical container must be repeated three times. Puncture the container to prevent future use. An alternative is to jet-rinse or pressure rinse the container.
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. Wind speed must be below 5 mph. Make sure wind drift of chemicals will not affect any surrounding land, people or animals.
Never wash out a hopper within 100 feet (30 m) of any freshwater source or in a car wash.
Shutdown and StorageLower planter, put tractor in park, turn off engine, and remove the key.
Secure planter using blocks and supports provided.
Detach and store planter in an area where children normally do not play.
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1205NT Table of Contents Index Important Safety Information 5
Tire SafetyTire changing can be dangerous. Employ trained personnel using correct tools and equipment.
When inflating tires, use a clip-on chuck and extension hose long enough for 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.
Practice Safe MaintenanceUnderstand procedure before doing work. Use proper tools and equipment. Refer to this manual for additional information.
Work in a clean, dry area.
Lower the planter, 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 planter to cool completely.
Disconnect battery ground cable (-) before servicing or adjusting electrical systems or before welding on planter.
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 planter before operation.
Safety At All TimesThoroughly read and understand the instructions in this manual before operation. Read all instructions noted on the safety decals.
Be familiar with all planter functions.
Operate machinery from the driver’s seat only.
Do not leave planter unattended with tractor engine running.
Do not stand between the tractor and planter during hitching.
Keep hands, feet and clothing away from power-driven parts.
Wear snug-fitting clothing to avoid entanglement with moving parts.
Watch out for wires, trees, etc., when folding and raising planter. Make sure all persons are clear of working area.
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1205NT Table of Contents Index Important Safety Information 6
Safety DecalsSafety Reflectors and DecalsYour 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)
1 total
Reflectors: Red
Located on left and right ends;2 total
818-055C
838-266C
14007
14009
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1205NT Table of Contents Index Important Safety Information 7
Reflectors: Amber
Located on left & right ends;4 total
Warning: Excessive Speed Hazard
On top of hitch tube;2 total
Falling Hazard
On top of hitch tube;1 total
838-265C14008
818-337C
818-398C
14002
14003
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1205NT Table of Contents Index Important Safety Information 8
Warning: High Pressure Hazard
On top of hitch tube;1 total
Caution: Moving Chain Hazard
1 total
Caution: General
On tire rim;1 total
818-437C
14002
Wear proper hand and eye protection
this type of injury.
If injured, seek immediate medicalhelp from a doctor familiar with
hoses BEFORE applying pressure.Visually check all hydraulic lines and
Keep all components in good repair. or cardboard, NOT BODY PARTS. when searching for leaks. Use paper
repairing, adjusting, or disconnecting.Relieve pressure on system before
To prevent serious injuryor death:
HIGH PRESSUREFLUID HAZARD
818-437C Rev. B
818-518C
818-578C
14004
DO NOT operate with enclosure missing
MOVING CHAIN HAZARDo prevent serious injury from moving chain:
CAUTION
14005
818-578C
Maximum inflation pressure of tires is 65 psi.
Torque wheel bolts to 90 - 105 ft-lb.
To Avoid Injury or Machine Damage from improper Tire
Inflation or Torquing of Wheel Bolts:
CAUTION
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1205NT Table of Contents Index Important Safety Information 9
Caution: Transport Hazard
2 total
Caution: General Instructions
On top of hitch tube;1 total
Warning: Pinch Point Hazard
On each optional marker
818-584C
14006
818-587C
818-579C
14002
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Read Owner’s Manual before using machine.
Stand clear when folding and unfolding markers.
Stand clear when raising and lowering machine.
Keep all safety shields and devices in place.
Keep hands, feet, and clothing away from
Never ride on machine.
Always lower or properly support machine
Escaping hydraulic fluid can cause serious
Review safety instructions with all operators
moving chains and sprockets.
BEFORE servicing.
818-587C Rev. B
injury.
annually.
CAUTION
14564
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1205NT Table of Contents Index Important Safety Information 10
Caution: Crushing Hazard
On each optional marker
Reflectors: Amber (Option)
On each optional marker
Reflectors: Daytime (Option)
Reflector located on both ends;
2 reflectors total
Warning: Moving Parts Hazard (Option)
On center of optional Small Seeds Box;1 total
818-580C
14564
838-265C
838-267C
838-467C
14564
14009
13734
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1205NT Table of Contents Index 11
Introduction
Great Plains welcomes you to its growing family of new product owners. This implement has been designed with care and built by skilled workers using quality materials. Proper assembly, maintenance and safe operating practices will help you get years of satisfactory use from the machine.
Description of UnitThe 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
Document Family
Using This ManualThis manual will familiarize you with safety, assembly, operation, adjustment, troubleshooting and maintenance. Read this manual and follow the recommendations to help ensure safe and efficient operation.
Fill out the warranty sheet with the dealer at the time of purchase. Give the dealer the completed white copy and send the pink copy to Great Plains. Keep your yellow copy in the manual for use when corresponding with the dealer.
This manual is current at printing. Some parts may change to assure top performance.
DefinitionsRight and left as used in this manual are determined by facing the direction the machine will travel while in use unless otherwise stated.
Note:Useful information related to the preceding topic.
Economic or Liability Risk:
Paragraphs in this format present a crucial point of information related to the current topic. Read and follow the directions to:
• remain safe• avoid serious damage to equipment and• ensure desired field results.
Note: Paragraphs in this format provide useful information related to the current topic.
14001
Figure 1End Wheel, No-Till Drill
1205NT-1410 14 row
1205NT-1808 18 row
1205NT-1975 19 row
1205NT-2007 20 row
150-131m Owner’s Manual (this document)
150-131p Parts Manual
150-131q Pre-Delivery Manual
U
DF
B
L
R
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1205NT Table of Contents Index Introduction 12
Owner AssistanceIf customer service or repair parts are needed contact your Great Plains dealer. They have trained personnel, parts and service 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 on the outside end of the left drill box as shown in Figure 2.
Further AssistanceGreat Plains Manufacturing, Inc. and your Great Plains dealer want you to be satisfied with your new 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 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.
If your dealer is unable to resolve the problem or the issue is parts related, please contact:
Great Plains Service Department1525 E. North St.
P.O. Box 5060Salina, KS 67402-5060
Or go to www.greatplainsag.com and follow the contact information at the bottom of your screen for our service department.
16537
Figure 2Serial Number Plate
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1205NT Table of Contents Index 13
Preparation and Setup
This section will help you prepare your tractor and drill for use. The drill hitch must be adjusted to match drawbar height, and the drill control console must be installed in your tractor.
This section also covers bleeding the drill hydraulics and making drill frame and box adjustments. As the operator, you may need to perform these functions after dill repair. Before operating the drill, check that the hydraulic systems are free or air, the frame is level, and boxes are aligned.
Prestart Checklist
1. Read and understand “Important Safety Information,” page 1.
2. Check that all working parts are moving freely, bolts are tight, and cotter pins are spread.
3. Check that all grease fittings are in place and lubricated. Refer to Lubrication, “Maintenance and Lubrication,” page 43.
4. Check that all safety labels and reflectors are correctly located and legible. Replace if damaged. See Safety Labels, “Important Safety Information,” page 1.
5. Inflate tires to pressure recommended and tighten wheel bolts as specified. See “Appendix,” page 52.
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 Assembly1. See Figure 3. 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).
13939
Figure 3Tongue Height
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1205NT Table of Contents Index Preparation and Setup 14
Hitch Height Adjustment1. For proper field operation, drill tongue should run
level in field position. See Figure 4.
a. With drill in field position, adjust tongue hack to level tongue.
b. Measure tractor drawbar height to determine 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 TractorRefer to Figure 5.
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 6.
13940
Figure 4Hitch Height
13944
Figure 5Hitching to Tractor
13945
Figure 6Jack Storage Position
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Hydraulic Hose HookupHigh 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 HandlesGreat 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.
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.
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.
Color Hydraulic Function
Blue Transport Lift Cylinders
Green Marker Cylinders
31733
Figure 7Jack Storage Position
Color Hydraulic Function
Blue Transport Lift Cylinder
Orange Marker Cylinders
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1205NT Table of Contents Index Preparation and Setup 16
Rephasing CylindersThe 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.
Bleeding 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, immediate medical attention from a physician 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.
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.
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.
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Leveling DrillRefer to 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 8Jack Storage Position
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1205NT Table of Contents Index 18
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.
2. Lubricate the drill as indicated under Lubrication, page 43.
3. Check all tires for proper inflation as indicated on Tire Inflation Chart, page 54.
4. Check all bolts, pins and fasteners. Torque as specified on Torque Values Chart, page 53.
5. Check the drill for worn or damaged parts. Repair or replace them before going to the field.
6. Check hydraulic hoses, fittings and cylinders for leaks. Repair or replace them before going to the field.
7. Rotate both gauge wheels to see that drive and meters are working properly and free from foreign material.
8. Torque bolts shown in Figure 9 to 125 +20 ft•lbs. Check and torque these bolts every few hours after this, during the first days of operation.
Mis-step Hazard:Watch your step when walking on drill ladder and walkboard. Falling from drill could cause severe injury or death. Figure 9
Jack Storage Position
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Field Operation
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 pins.
1. Hitch drill to a suitable tractor.
2. Set seed population as explained in “Seeding Rate”, page 26.
3. Load box with clean seed.
4. Raise drill. Rotate gauge wheel. Check that feed cups, seed tubes and drives are working properly and free from foreign material by looking for seed flow under each opener.
5. Record acremeter readout. Subtract initial reading from later readings to determine acres drilled.
6. Pull forward, lower drill and begin seeding.
7. Always lift drill out of the ground when turning at row ends and for other short-radius turns. Seeding will stop automatically as drill is raised.
Opener Operation
Machine Damage Risk:Never back up with openers in the ground. To do so may cause damage or opener plugging.
For information on opener adjustments, refer to page 24. For more information on troubleshooting opener problems, see “Troubleshooting”, page 41.
Marker OperationOptional marker attachments are available from your Great Plains dealer. Before operating markers, make sure hydraulics are properly bled as described under “Marker Adjustments”, page 36.
Dual markers equipped with a sequence valve are pow-ered off the same hydraulic circuit. The markers cycle in the following sequence:
1. right up, left up
2. right down, left up
3. right up, left up
4. right up, left down
You can adjust marker folding speed. Refer to “Marker Adjustments”, page 36, and adjust folding speed to a safe rate. Folding markers at high speed can damage markers.
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1205NT Table of Contents Index Operating Instructions 20
Transporting
Loss of Control Hazard:Towing the drill at high speeds or with a vehicle that is not heavy enough could lead to loss of vehicle control. Loss of vehicle control could lead to serious road accidents, injury and death. To reduce the hazard, do not exceed 20 mph. Check that your tractor has enough ballast to handle the weight of the drill. Refer to your tractor operator’s manual for ballast requirements.
Loss of Control Hazard:Failure of hydraulic cylinders during transport will cause drill to drop suddenly, which could lead to serious road accidents, injury or death. To prevent an accident, always install cylinder locks before transporting drill.
Before transporting, check and practice the following items.
Lock Cylinders. Cylinder locks (1) are located on both hydraulic cylinders. With drill fully raised swing lock up over rod of cylinder and snap into place, see Figure 10.
Note: The cylinder locks can be engaged or disengaged only after the drill is fully raised.
Unload drill box. The drill can be transported with a full box of grain, but the added weight will increase stopping distance and decrease maneuverability. Unload drill box before transporting if at all possible.
Clearance. Remember that the drill is wider that the tractor. Allow safe clearance.
Road rules. Comply with all federal, state and local safety laws when traveling on public roads.
1
14773
Figure 10Cylinder Lock
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Lock-out Hub. Make sure drive lock-out hub on left side of drill is disengaged before transporting, see Figure 11. This will prevent excessive wear of drive system during transport.
Transporting with Markers. Always transport markers in the folded position.
ParkingPerform the following steps when parking the drill. Refer to Storage, page 44, for information on long-term storage preparation.
1. Park the drill on a level, solid area.
2. Lower drill until openers are resting on the ground.
3. Securely block tires to prevent rolling.
4. Remove tongue jack from storage stob. Pin jack on side of tongue. If ground is soft, place a board or plate under jack. Refer to Figure 12
5. Extend jack until tongue weight is off tractor drawbar..
6. Unplug hydraulic hoses and wiring harness from tractor. Do not allow hose ends or harness ends to rest on the ground.
7. Remove hitch bolt and safety chain from tractor drawbar.
14171Figure 11
Lock-out Hubs
Jack storage stob
14774aFigure 12
Jack Storage Position
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Adjustments
Coulter AdjustmentsA no-till coulter , Figure 13, is mounted directly ahead of each opener on the drill. The coulters cut through heavy trash and make a groove in the soil for the openers. The coulters are mounted on the drill frame so coulter cutting depth changes as the drill is raised and lowered.
To set drill seeding depth, you must:
1. Set coulter depth with hydraulic stop.
2. Set opener depth with T-handles on press wheels.
3. If soil conditions make it necessary, increase coulter down pressure by adding weights.
If necessary, adjust individual coulters or openers to seed in tire tracks.
Coulter cutting depth is controlled by a depth control valve.
The amount of coulter down force needed to cut a soil groove varies with soil conditions. Adding weight or shortening the coulter spring increases coulter down pressure and cutting force.
Coulter Depth ControlRefer to Figure 14
The master-slave lift cylinders on your drill control the depth of the coulters. A depth valve regulates the retracted length of these cylinders.
1. Slightly raise drill with depth stop engagement arm on the rock shaft not touching the valve.
2. Turn the depth control knob clockwise. Each rotation lowers the coulters approximately 1/4 inch.
3. Raise and lower drill a few times to recheck depth.
Note: Changing depth of coulters will effect planting depth of openers. Press wheels will need to be adjusted accordingly.
Figure 13Coulter
1
Figure 14Coulter Depth Stops
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Coulter Down Pressure WeightsIf more weight is required for your soil conditions, add weights to weight brackets located on box frame. No more than 1200 pounds (600 pounds per side) should ever be added. Add an equal amount of weight to each end of drill. See Table 1.
Spring LengthCoulter springs are preset at 10 inches, giving coulters an initial operating force of 400 pounds. This setting is adequate for many difficult no-till conditions.
Equipment Damage Risk:Resetting coulter-spring length shorter than 9-3/4 inches may contribute to premature failure of parts and warranty will be voided. If additional force is needed, add weights to drill.
For lighter no-till conditions where rocks or other obstructions are a problem, you can lengthen coulter springs to protect coulters from impact. Refer to Table 2.
Individual Coulter AdjustmentIndividual coulters can be lowered if coulters follow in tractor tire tracks and do not give satisfactory depth. To do so:
1. Loosen 5/8 inch jam nuts on 5/8 inch square head set screws. Then loosen set screws.
2. Lower coulter to desired depth.
3. Tighten set screw on side of coulter clamp first. This squares coulter bar in clamp.
4. Tighten set screw on front of coulter clamp. Then tighten both 5/8 inch jam nuts on each set screw.
Note: Torque 5/8 inch set screws 85-100 ft•lbs to obtain adequate holding force.
Pounds Per Coulter
7-Inch 7.5-Inch 8-Inch 10-Inch
Empty Drill 274 282 290 363
Drill with 300 pounds added
304 314 323 406
Table 1Weight Chart
10.0 inches25.4 cm
Figure 15Coulter Spring Length
Spring Length Initial Vertical Coulter Force
10-1/2 Inches 175 pounds
10-1/4 Inches 300 pounds
10 Inches 400 pounds
9-3/4 Inches 525 pounds
Table 2Spring Length Chart
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Opener AdjustmentsOpener Down Pressure
Opener springs provide the down pressure necessary for opener disks to open a seed trench. The springs allow the openers to float down into depressions and up over obstructions.
Each opener spring can be adjusted for down pressure. This is useful when penetrating hard soil and for planting in tractor tire tracks.
Opener Seeding DepthA press wheel attached to each opener body controls seeding depth. To maintain consistent depth, the relationship between the bottom of the opener disks and press wheel is fixed upwardly by an adjustable stop on each opener.
The press wheels also close the seed trench and gently press soil over seed. To provide consistent soil firming, press wheels are free to move down from normal operating position. This maintains pressing action even if opener disks encounter obstructions or hard soil.
Set opener seeding depth by adjusting press-wheel height. To adjust, first raise drill slightly, then lift and slide T-handles on top of openers as shown in Figure 17.
• For shallower seeding, slide T-handles toward drill.• For deeper seeding, slide T-handles away from drill.
Maximum Pressure
Minimum Pressure
Figure 16Opener Down Pressure Adjustment
T-Handle
Figure 17Press Wheel Adjustments
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Disc Scraper AdjustmentTo keep opener disks turning freely, dirt scrapers are mounted between disks to clean as the disks rotate. As field conditions vary, scrapers may need to be adjusted. In damp conditions, scrapers may need to be lowered. If openers are not turning freely, scrapers may need to be raised.
To adjust scrapers, loosen 3/8 inch bolt shown in Figure 18 and move scraper as needed.
Gauge Wheel Idler Adjustment
Located inside the left hand gauge wheel arm is two idler sprockets which should be readjusted after the first 100 acres of drill use. From then on, readjust at the beginning of each season.
To adjust, move front idler sprocket on top of chain down by loosening jam nut and screwing in adjustment stud. Refer to Figure 19.
Tighten jam nut to maintain idler position.
Note: Do not over-tighten chains. To do so will cause excessive wear.
Scraper bolt
16163Figure 18
Disc Scraper Adjustment
Adjustment stud
Jam nut
1474Figure 19
Gauge Wheel Idler Adjustment
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Seeding RateRefer to Figure 20
Calibrating the seeding rate requires four steps:
1. selecting one of four drive types,
2. setting the seed-rate handle,
3. positioning the feed-cup door, and
4. checking the seed rate.
Refer to the seed rate charts beginning on page 28. These charts list the proper drive type and seed-rate-handle settings for various seeds and seeding rates.
The seed rate charts are based on cleaned, untreated seed of average size and test weight. The rates are based on 295/75/R22.5 rib implement tires. Many factors will affect seeding rates including foreign material, seed treatment, seed size, field conditions, tire pressure and test weight. Minor adjustments likely will be needed. Set and check the seeding rate using these procedures, then adjust the rate as necessary.
Select Drive Type
The gearbox is designed to give you a variety of drive speeds for different types of seeds and rates. It is a linear shift pattern design with constant mesh gearing and totally sealed to keep the dirt out. No lubrication is required unless service is needed.
The gearbox brass indicator plate is positioned so the side with “1” is closest to the center of the drill.
To set the gearbox move the selector handle until the desired drive type appears in the window on the handle.
See Table 3 for gearbox ratios.
Set Seed Rate Handle
Refer to Figure 21
Position the seed rate handle to setting indicated on seed rate chart. To adjust, loosen wing nut under handle. Slide handle until indicator lines up with correct setting.
Gearbox selector handle
Figure 20Gearbox Handle Adjustment
Gearbox Ratios
Setting 2 is 2.06 Times Faster Than 1
Setting 3 is 3.08 Times Faster Than 1
Setting 4 is 5.03 Times Faster Than 1
Seed-rate handle
Figure 21Seed Rate Handle Adjustment
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Position Feed-Cup Doors
Refer to Figure 22
For wheat and other small seeds, move feed cup door handles to highest position. For soybeans and other large seeds, lower handles to second position. If excessive seed cracking occurs, lower handles to third position. Move handles to fourth, wide-open position, for seed cup clean out. Make sure all handles are in same position before drilling.
Note: Do not open cup to wide open position with seeds in the box unless complete clean out is desired.
Check Seed Rate
Note: For drills built after October 1, 2005, use the gauge wheel tire or supplied calibration crank to calibrate. For drills built before October 1, 2005, use the gauge wheel to calibrate or order the calibration crank kit available through your Great Plains Dealer.
1. To calibrate, use either the left hand gauge wheel or the supplied calibration crank. If using the calibration crank, attach crank to coupler on gauge wheel jackshaft with retaining pin and disengage lockout on drive wheel.
2. Rotate left hand gauge wheel or calibration crank to see that feed cups and drive are working properly and are free from foreign matter.
3. To adjust seeding rate, decide which drive type (gearbox) setting you need from the seeding charts beginning on next page. Set the gearbox. Rotate drive tire or calibration crank a few turns to confirm gearbox has engaged.
4. Record weight of an empty container large enough to hold seed metered for one acre.
5. Place several pounds of seed over three seed cups on an outside end of drill box. Pull seed tubes off of these three openers.
6. Turn drive gauge wheel or calibration crank several times to fill seed cups with seed. Turn wheel or crank until seed falls to the ground from each cup.
7. Rotate drive gauge wheel or calibration crank 346 rotations. This is equal to one acre.
Note: You can also rotate the gauge wheel jackshaft by means of a wrench or socket. If rotating gauge wheel jackshaft, disengage the lockout on the drive wheel and use same number of rotations as for rotating drive wheel.
8. Check that the three seed cups have plenty of seed coming into them.
9. Weigh metered seed. Subtract initial weight of container. Divide by three. Multiply by the number of openers on your drill to determine total pounds seeded per acre. If this figure is different than desired, set your seed rate adjustment handle accordingly.
Note: You may want to repeat the calibration procedure if your results vary greatly from seed rate chart.
10. When drilling, check seeding rate by noting acres drilled, amount of seed added to drill and seed level in drill box. If you are seeding more or less than desired, adjust seeding rate slightly to compensate for field conditions.
Equations for calibrating seed rate:
measured seed - empty container
------------------------------------------------- = pounds per seed cup
3 (number of seed cups measured)
and
pounds per seed cup x number of openers = pounds per acre
Small Seeds AttachmentTo set and calibrate the seeding rate on the optional small seeds attachment, follow these steps:
Note: For drills built after October 1, 2005, calibrate using gauge wheel or supplied calibration crank. For drills built before October 1, 2005, calibrate using gauge wheel or order the calibration crank kit available through your Great Plains Dealer.
1. To calibrate, use either the left hand gauge wheel or the supplied calibration crank. If using the calibration crank, attach crank to coupler on gauge wheel jackshaft with retaining pin and disengage lockout on drive wheel.
2. Rotate left hand gauge wheel or calibration crank to see that feed cups and drive are working properly and are free from foreign matter.
3. From the small seeds seed rate chart on the next page, find the setting number for desired feeding rate (and row spacing). Move the small seed cup adjustment lever to that setting number.
4. Record weight of an empty container large enough to hold seed metered for one acre.
5. Place several pounds of seed over three seed cups on an outside end of drill box. Pull seed tubes off of these three openers.
6. Turn drive gauge wheel or calibration crank several times to fill seed cups with seed. Turn wheel or crank until seed falls to the ground from each cup.
7. Rotate drive gauge wheel or calibration crank 346 rotations. This is equal to one acre.
Note: You can also rotate the gauge wheel jackshaft by means of a wrench or socket. If rotating gauge wheel jackshaft, disengage the lockout on the drive wheel and use same number of rotations as for rotating drive wheel.
8. Check that the three seed cups have plenty of seed coming into them.
9. Weigh metered seed. Subtract initial weight of container. Divide by three. Multiply by the number of openers on your drill to determine total pounds seeded per acre. If this figure is different than desired, set your seed rate adjustment handle accordingly.
Note: You may want to repeat the calibration procedure if your results vary greatly from seed rate chart.
10. When drilling, check seeding rate by noting acres drilled, amount of seed added to small seed box and seed level in small seeds box. If you are seeding more or less than desired, adjust seeding rate slightly to compensate for field conditions.
Equations for calibrating seed rate:
measured seed - empty container
------------------------------------------------- = pounds per seed cup
3 (number of seed cups measured)
and
pounds per seed cup x number of openers = pounds per acre
The acremeter counts shaft rotations whenever the shaft is rotating - normally this is only with the drill lowered and in motion. The meter is programmed to display rotations as acres or hectares, when using all rows, factory-specified tires and tire inflations.
Note: Unusual conditions and/or non-standard row spacings can cause the acremeter tally to vary somewhat from actual acres planted.
Acremeters supplied with drills have varied over time. For operational details (modes, resets, calibration), see the manual supplied with the acremeter:
Gauge-Wheel Drive AdjustmentInside both gauge-wheel arms are two idler sprockets as shown in Figure 24. Adjust these sprockets after the first 100 acres of drill use and at the beginning of each season.
To adjust, move the front idler sprocket on the top of the chain down by loosening the jam nut and screwing in the adjustment stud, located on top of the wheel arm. Do not over tighten chains, causing excessive wear. Tighten the jam nut to maintain the idler position.
Meter Style and Manual
194-074M 152-314M
152-325M 194-209M
1
23
438110
Figure 23Electronic Acremeter1 3
2 4
14528
Figure 24Gauge-Wheel Idler-Sprockets Adjustment
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Fertilizer Meter RateFertilizer application rates will vary with fertilizer type, density and particle size. Relative humidity and field conditions can also affect application rates. The chart on page 35 is based on material with a density of 65 pounds per cubic foot (1.04 kg/L) and average particle size. Initially set rate according to the charts, then calibrate the drill to your material as described below.
Note: For drills built after October 1, 2005, calibrate using gauge wheels or supplied calibration crank. For drills built before October 1, 2005, calibrate using gauge wheels or order calibration crank kit available through your Great Plains Dealer.
1. To calibrate using gauge wheels, raise drill with tractor hydraulics so drive wheels are off the ground. To calibrate using supplied calibration crank, attach crank to coupler on gauge wheel jackshaft with retaining pin. Disengage lockout on the drive wheels.
2. Rotate drive wheels or calibration crank to see that metering system is working properly and free from foreign material.
3. From the chart on page 35, find the setting number for your row spacing and desired application rate. Rotate gate adjustment knob to the number obtained from the chart.
The fertilizer rate chart is for granular fertilizer with a density of 65 pounds per cubic foot (1.04 kg/L). If you are applying fertilizer with a different density, use the density conversion chart.
4. Check that gauge-wheel tires are the correct size and properly inflated. Refer to “Tire Inflation Chart”, page 54.
5. Record the weight of an empty container large enough to hold fertilizer metered for one acre.
6. Place several pounds of fertilizer over three fertilizer feed cups on outside end of drill box. Pull fertilizer tubes off these three openers.
7. Turn gauge wheels or calibration crank a few turns to fill feed cups with material. Continue to turn until fertilizer drops to the ground from all three tubes.
Note: You can also rotate the gauge wheel jackshaft by means of a wrench or socket. If rotating gauge wheel jackshaft, disengage the lockout on the drive wheel and use same number of rotations as for rotating drive wheel.
8. Place a container under the three tubes to gather metered fertilizer.
9. Turn gauge wheel or calibration crank for approximately 346 rotations (one acre). Check that the three feed cups have plenty of fertilizer coming into them.
10. Weigh metered material. Subtract initial weight of the empty container. Divide by three. Multiply by the number of openers on your drill to determine total pounds-per-acre metered. If this figure is different than desired, reset adjustment knob accordingly.
Note: You may want to repeat the calibration procedure if your results vary greatly from the chart.
11. When drilling, check the rate by noting acres drilled, amount of fertilizer added to the drill and level of material in drill box. If you are applying more or less that desired, adjust the metering rate slightly to compensate for field conditions.
Equations for calibrating seed rate:
measured seed - empty container
------------------------------------------------- = pounds per seed cup
3 (number of seed cups measured)
and
pounds per seed cup x number of openers = pounds per acre
1205NT Calibration Crank
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Fertilizer Rate Chart (pounds per acre)
Density Conversion ChartThe fertilizer meter charts are based on fertilizer with a density of 65 pounds per cubic foot (1.04 kilograms per li-ter). If you are applying fertilizer of a different density, use the following table to convert application rate.
Example: Your fertilizer has a density of 75 pounds per cu-bic foot, and you want to apply 100 pounds per acre. Multiply the desired application rate by the conversion factor.
100 x 0.87 = 87
Adjust drill to the setting closest to 87 pounds per acre.
The markers must be properly bled to displace air in the hydraulic system and for the sequence valve to work properly. Failure to do so could cause marker to drop quickly and cause damage to marker voiding the warranty.
Overhead and Crushing Hazard:Keep others away when folding or unfolding markers. Markers may fall quickly and unexpectedly if hydraulics fail.
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 before bleeding the hydraulics. A low reservoir level may draw air back into the system, causing jerky or uneven cylinder movements.
JIC fittings do not require high torque. JIC and O-Ring fittings do not require sealant. Always use liquid pipe sealant when adding or replacing pipe thread fittings. To avoid possible danger of cracking hydraulic fittings from overtightening, do not use plastic sealant tape.
Dual Markers with Sequence Valve
Refer to Figure 25
1. Fold markers manually into transport position when charging hydraulic system for the first time.
2. Disconnect cylinder pin (1) from rod end of cylinders and marker link arms (2). Swing marker link arm up and out of the way.
3. Connect hoses to tractor remote hydraulic outlets.
4. Loosen hose hydraulic fittings at rod end of marker cylinders (3).
5. With tractor at idle speed, slowly work tractor remote lever in the direction which would retract the cylinder.
Note: Do not try to retract cylinder. The goal is to push air from the lines leading to the cylinder. The position of the sequence valve determines which cylinder will react first.
6. When the air is expelled, oil will seep out around a loosened fitting. Tighten the hose fitting.
7. Move tractor remote lever to fully extend cylinder and hold for a few seconds. This will shift the
sequence valve which will allow you to bleed the other cylinder.
8. Repeat steps 4 through 6 for the other cylinder.
9. When the system is bled, move the tractor remote lever several times until both cylinders stop when fully extended.
10. Reconnect cylinders to marker link arms.
1402
Figure 25Bleeding Marker Hydraulics
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Single/Dual Markers without Sequence Valve
Refer to Figure 26
1. Fold markers manually into transport position when charging hydraulic system for the first time.
2. Disconnect cylinder pin (1) from rod end of cylinders and marker link arms (2). Swing marker link arm up and out of the way.
3. Connect hoses to tractor remote hydraulic outlets.
4. Loosen hose hydraulic fittings at rod end of marker cylinders (3).
5. With tractor at idle speed, slowly work tractor remote lever in the direction which would retract the cylinder.
Note: Do not try to retract cylinder. The goal is to push air from the lines leading to the cylinder. The position of the sequence valve determines which cylinder will react first.
6. When the air is expelled, oil will seep out around a loosened fitting. Tighten the hose fitting.
7. Move tractor remote lever to fully extend cylinder and hold for a few seconds.
8. If you have dual markers, repeat steps 4 through 6.
9. When the system is bled, move the tractor remote to fully extend marker cylinders.
10. Reconnect cylinders to marker link arms.
Figure 26Bleeding Marker Hydraulics
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Folding Speed with Sequence Valve
Refer to Figure 27
The marker hydraulic system is equipped with needle valves to control how fast each marker operates. The needle valves are built into the sequence valve body.
Adjust folding speed with hex adjustment screws on the sequence valve body. There is one adjustment screw for raising speed (1) and one for lowering speed (2). Identify adjustment screws by markings stamped in valve body.
With tractor idling at a normal operating speed, adjust marker folding to a safe speed. Turn adjustment screws clockwise to decrease folding speed and counterclockwise to increase folding speed. Excessive folding speed could damage markers and void the warranty.
After adjusting folding speed, tighten jam nuts on hex adjustment screws to hold settings.
Markers cycle in the following sequence:
1. Right up, Left up
2. Right down, Left up
3. Right up, Left up
4. Right up, Left down
5. Sequence repeats.
Folding Speed with Needle ValveRefer to Figure 28
Needle valves control the speed of each marker and is located at the rod ends of the marker cylinders.
With tractor idling at a normal operating speed, adjust marker folding to a safe speed. Turn adjustment knob clockwise to reduce folding speed or counterclockwise to increase folding speed. Excessive folding speed could damage markers and void the warranty.
14048
Figure 27Marker Sequence Valve
Figure 28Single Marker Needle Valve
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Marker Disk AdjustmentThe aggressiveness and the mark left by the disc may be changed by two methods:
Changing disk angle. Refer to Figure 29. To change angle of cut, loosen two 1/2 inch bolts (1) and rotate disk assembly. Tighten bolts.
Changing disk tip. To change the tip of the disk, loosen two 1/2 inch bolts (2) and rotate disk assembly until marker disk is square with the ground.
Marker Width Adjustment
To change marker width, loosen marker tube U-bolt (3), see Figure 29. Slide the marker tube in or out to desired width. Tighten U-bolt.
Seed Lok Lock UpRefer to Figure 30
Optional Seed-Lok firming wheels provide additional seed-to-soil contact. The wheels are spring loaded and do not require adjusting. In some wet and sticky conditions the wheels may accumulate soil.
To lock up the firming wheels, hook one end of the chain in the opener-body hole just above the wheel arm (1). Pull the firming-wheel arm (2) up as high as possible and wrap the chain around the arm. Hook the other end of the chain in a link. Leave no slack in the chain; secure the wheel arm in the highest position.
Figure 29Marker Disc Adjustment
1
2
1685Figure 30
Seed Lok Lock Up
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Spring Tine HarrowRefer to Figure 31
Harrow Tine AngleThis shows a successful harrow position for no-till and minimum-till conditions. Because of different soil moisture, trash levels and trash types, you may need to reposition the tube frame or tines. Initially position the frame and tines as shown, then readjust as necessary.
Harrow Frame and Tine Adjustment
Refer to Figure32
To adjust harrow frame loosen the four hex nuts (1) on the U-bolts and rotate frame tube (2) as necessary.
To adjust tines, loosen the four 1/2-inch hex nuts (3) on the 1/2-inch U-bolts (4) on the support bar (5). Rotate tine tubes (6) so tines (7) are against stop bushings (8) and are angled back as necessary. Tighten hex nuts on U-bolts.
Harrow Chain
In clean, tilled, extremely loose soils, harrow chain may need to be shortened to lift harrow off the ground.
Direction of Travel
Figure 31Tine Angles
Figure 32Frame and Tine Adjustment
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Troubleshooting
Problem Cause Solution
Uneven seed spacing or uneven stand
Excessive field speed. Reduce field speed.
Feed cups plugging. Clean out feed cups.
Seed tubes plugging. Clean out seed tubes.
Opener disks not turning freely. See “Opener disks not turning freely” in thisTroubleshooting section.
Opener not penetrating low spots. Adjust opener, page 24.
Trash or mud build up on Seed Lok. Lock up Seed Lok, page 39.
Use faster drive type speed and close feed cup flutes to a more narrow position.
Uneven seed depth Excessive field speed. Reduce field speed.
Planting conditions too wet. Wait until drier weather.
Grain box not emptying evenly Some models do not have same number of feed cups between each divider of bulk-head.
Press wheel or openers plug-ging
Planting conditions too wet. Wait until drier weather.
Too much down pressure on openers. Reduce down pressure on openers, page 23.
Backed up with drill in the ground. Clean out and check for damage.
Failed disk bearings. Replace disk bearings.
Scraper worn or damaged. Replace scraper.
Raising and lowered drill is rough or uneven
Wheel arm pivot casting needs lubricating. Lubricate wheel arm pivot castings.
Leaking hydraulic fittings. Check fittings for leaks, see page 18 for safety message.
Rephasing cylinders not bled properly. See page 16 for information.
Feed cup sprockets locked up or twisted feed cup drive shaft
Foreign matter lodged in one or more feed cup sprockets.
Clean out feed cup sprockets. Use clean seed.
Dried liquid insecticide inside feed cups. Remove build up by disassembling each feed cup and scraping foreign substance from turn surfaces.
Coulters not going deep enough
Not enough weight. See page 23 for correct weight.
Coulters and drill going too deep
Too much weight. See page 23 for correct weight.
Incorrect depth control setting. Reset depth control, page 22.
Incorrect press wheel adjustment. Set press wheels to a shallower depth.
Coulters and openers plugging in no-till conditions
Drill at a slight angle to rows.
Small seeds box not emptying evenly
Adjustable divider not set evenly. Move adjustable divider to create more volume in areas that run out first.
Marker functioning improperly Hose fittings or connections not tight. Check all hose fittings and connections for oil leaks. See page 18 for safety message.
Missing or loose bolts or fasteners. Check and tighten all bolts and fasteners.
Needle valve plugged. Open needle valve, cycle markers slowly and reset needle valve, refer to page 38.
Marker disk does not mark Marker folding linkage does not have enough slack to allow marker disk to drop into field depressions.
Maximum down float should be limited by the slot at rod end of marker cylinder. Make sure marker cylinder is fully extended.
Reverse marker disk to pull or throw dirt.
Chain Debris, retainer clip Be sure retainer clip is facing opposite way of chain travel.
Problem Cause Solution
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Maintenance and Lubrication
General MaintenanceProper servicing and adjustment is the key to long implement life. With careful and systematic inspection, you can avoid costly maintenance, downtime and repair.
Always turn off and remove the tractor key before making any adjustments or performing maintenance.
Crushing Hazard: You may be severely injured or killed by being crushed under the falling implement. Always have transport locks in place and frame sufficiently blocked up when working on implement.
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.
1. After using your drill for several hours, check all bolts to be sure they are tight.
2. Lubricate areas as noted under Lubrication (Intervals), next page.
3. Adjust idlers to remove excess slack from chains. Clean and use chain lube on all roller chains as needed.
5. Clean out build up of seed treatment in feed cups.
6. Replace any worn, damaged or illegible safety labels at once. Refer to Safety Labels, “Important Safety Information,” page 1, for correct label placement. Obtain new labels from your Great Plains dealer.
OFF
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1205NT Table of Contents Index Maintenance and Lubrication 44
Folding Marker Breakaway
Refer to Figure 33
The marker arm has a pivot at the hinge which is connected rigid with a 5/16 inch bolt (1). The shear bolt will break if excessive force is put on marker during operation allowing marker arm to swing away rather than cause damage to the marker.
Note: The shear bolt is a 5/16 x 1 1/2 inch grade 5 bolt and is identified by three markings on the head, see page 53. It must be replaced by an equivalent grade 5 bolt to prevent marker damage.
StorageStore the drill where children do not play. If possible, store the drill inside for longer life.
1. Unload seed box.
2. Thoroughly clean seed and seed-treatment residue from boxes and feed cups.
3. Remove any dirt and debris that can hold moisture and cause corrosion.
4. Lubricate and adjust all roller chains.
5. Take special care to oil feed cup drive sprocket in its square bore.
6. Lubricate areas noted under “Lubrication”, page 45.
7. Inspect drill for worn or damaged parts. Make repairs and service during the off season.
8. Use spray paint to cover scratches, chips and worn areas on the drill to protect the metal.
9. Disconnect seed hoses from openers. Permanent elongation and premature cracking of hoses may occur if stored connected.
10. Cover with a tarp if stored outside.
Directi
on of trave
l
Figure 33Folding Marker Breakaway
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Lubrication
Grease Banks
Type of lubrication: Grease
Quantity = Until resistance is felt.
Clutches
Two zerks on each.
Smear grease on clutch engagement teeth.
Type of lubrication: Grease
Quantity = Until grease emerges
Clutch Linkage
Type of lubrication: Multi-Purpose Spray Lube
Quantity = Coat thoroughly
Feed Cup Drive Sprocket Bore
Type of lubrication: Oil
Quantity = Coat sprocket bore thoroughly; move seed rate handle back and forth to get oil into sprocket bore.
8
8
8
10
50Multi-purposespray lubricant
Multi-puposegrease lubricant
Multi-purposeoil lubricant
Inspection
Intervals(operating hours)at which serviceis required
14753
14755
14756
12126
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1205NT Table of Contents Index Lubrication 46
Master Link Arm
Type of lubrication: Multi-Purpose Oil
Quantity = Coat thoroughly
Marker Hinge Points
Type of lubrication: Grease
Quantity = Until grease emerges
Gauge Wheel Arms
Type of Lubrication: Grease
Quantity = Until grease emerges
Small Seeds Drive Sprocket Hanger Bearing
Type of lubrication: Grease
Quantity = Until grease emerges
10
10
15
15
14058
1406
14752
12225
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1205NT Table of Contents Index Lubrication 47
Fertilizer Tray Bearings
Both ends of shaft
Type of lubrication: Grease
Quantity = Until grease emerges
Drive Chains
Type of lubrication: Chain Lube
Quantity = Coat thoroughly
Gearbox
The gearbox is lubricated and sealed at the factory. Under normal conditions, it does not require maintenance or lubrication.
If the gearbox has been opened for repair, repack all gears and around shaft bearings using at least 7 oz. of gear lube, Great Plains Part No. 788067.
Keep moisture and dirt out of gearbox. Inspect (replace if needed) the rubber seals on gearbox drive and shifter shafts.
Spread a small skin coat of anaerobic sealant (Loctite 525 or equivalent) to gear case mating surfaces before bolting them back together.
Use sparingly. Excess sealant may squeeze off the intended surface and lock bearings or gears.
15
As Required
12506
12227
14757
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1205NT Table of Contents Index Lubrication 48
Fertilizer Felt Barrier Washers
Next to each fertilizer-tray bearing
Type of lubrication: Oil
Small Seeds Feed Cup Drive Sprocket
Type of lubrication: Oil
Quantity = Coat sprocket bore thoroughly
Wheel Bearings
Type of lubrication: Grease
Quantity = Repack
Coulter Hub Bearings
Type of lubrication: Grease
Quantity= Until resistance is felt
Marker Disc Bearings
Type of lubrication: Grease
Quantity = Repack
30
50
Seasonally
Seasonally
Seasonally
12507
12226
14751
12507
14059
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1205NT Table of Contents Index 49
Options
Seed Box AgitatorThe seed box agitator is designed to stir the seed directly above the metering cups. It is intended to cut down on the “bridging” of light fluffy seeds, and help to separate individual soybeans that become sticky from inoculant.
Note: The seed box agitator will not guarantee consistent seeding of hard to meter seeds such as Brome Grass or “bin run” seed that contains crop residue.
For lubrication points, refer to “Lubrication”, page 45.
To order the seed box agitator, contact your Great Plains dealer.
Harrow AttachmentThe coil-tine harrow finishes no-till surfaces by leveling and distributing residue for enhanced seed germination.
For information on how to adjust the harrow, refer to “Harrow Adjustment”, page 40.
To order the harrow attachment, contact your Great Plains dealer.
Agitator Packages
row spacing
(inches)
7 7.5 8 10 Part Number
With
ou
t sm
all s
eed
so
r fe
rtili
zer
118-604A
118-605A
118-606A
118-607A
With
sm
all s
eed
s o
r fe
rtili
zer
118-608A
118-609A
118-610A
118-611A
Harrow Package Part Number
Harrow Attachment 116-162A
12682
14024
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1205NT Table of Contents Index Options 50
Folding MarkerThe folding marker is a center ground marking disk unit which can be mounted on either the right or left side or both sides of the drill. When mounted on both ends, the controls can be on separate hydraulic circuits or, by means of a sequence valve.
For information on how to adjust the marker, refer to “Marker Adjustments”, page 36. For lubrication points, refer to “Lubrication”, page 45.
To order the folding marker, contact your Great Plains dealer..
Seed-Lok® Firming WheelsThe spring-loaded Seed-Lok firming wheel presses seed directly into the bottom of the seed bed. The Seed-Lok option provides more even emergence since seeds are planted and firmed at the same depth.
To order the Seed-Lok firming wheels, contact your Great Plains dealer.
Small Seeds Attachment The small seeds attachment is designed to meter various small seeds. It is driven independently of the main seed box. The small seeds box is 0.24 bushel per foot (27.7 liters/meter) with a total capacity of 2.62 bushes (92.3 liters).
The small seeds attachment is available with two seed release point options: Y-tube release and press wheel release.
With the Y-tube release, seed metered out of the small seeds box is directed into the main seed tube, and drops between the disk blades at the bottom of the opener trench.
With the press wheel release, a separate small seed drop hose is installed on each opener. This releases the seed just ahead of the opener’s depth controlling press wheel.
For seed rates and adjustments, refer to “Small Seeds Attachment”, page 31. For lubrication points, refer to “Lubrication”, page 45.
Marker Package Part Number
Dual Markers with Sequence Valve 113-532A
Single Marker - Left Hand 113-540A
Single Marker - Right Hand 113-546A
Seed Lok Packages Part Number
Seed Lok Assembly 122-193K
13995
1267
13734
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1205NT Table of Contents Index Options 51
To order the small seeds attachment, contact yourGreat Plains dealer.
Fertilizer AttachmentThe fertilizer attachment allows you to plant seed and apply fertilizer in the same field pass. The fertilizer box mounts on the rear of the main drill box. A fertilizer drive meters dry, granular fertilizer.
For fertilizer meter rate calibrating and charts, refer to “Fertilizer Meter Rate”, page 34. For lubrication points, refer to “Lubrication”, page 45.
To order the fertilizer attachment, contact your Great Plains dealer.
Small Seeds Packages
row spacing
(inches)Part Number
7 7.5 8 10 Y-tube Press Wheel
With
out a
gita
tor 123-992A 123-991A
123-994A 123-993A
123-996A 123-995A
123-998A 123-997A
With
agi
tato
r
123-984A 123-983A
123-986A 123-985A
123-988A 123-987A
123-990A 123-989A
Fertilizer Packages Part Number
Fertilizer Assembly - 7 inch rows 142-708A
Fertilizer Assembly - 7.5 inch rows 142-709A
Fertilizer Assembly - 8 inch rows 142-710A
Fertilizer Assembly - 10 inch rows 142-711A
1098
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1205NT Table of Contents Index 52
Appendix A - Reference Information
Specifications and CapacitiesRow Spacing, Inches 7 7-1/2 8 10
Rows Per Drill 20 19 18 14
Weight, Pounds 6100 5965 5830 5290
Transport Width 15 Feet 7 Inches
Seedbox Capacity 2.4 Bushel per Foot
Tire Size 11 x 22.5 6-Ply Rib Implement
Tractor Requirements 75 Horsepower Minimum
Planting Position
Transport Position1393
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1205NT Table of Contents Index Appendix A - Reference Information 53
Torque Values Chart
94 6
25199m
BoltSize
Bolt Head Identification
BoltSize
Bolt Head Identification
Grade 2 Grade 5 Grade 8 Class 5.8 Class 8.8 Class 10.9
in-tpia N-mb N-m N-m mm x pitchc N-m N-m N-m1⁄4-20 7.4 11 16 M 5 X 0.8
1⁄4-28 8.5 13 18 M 6 X 1 7 11 155⁄16-18 15 24 33 M 8 X 1.25 17 26 365⁄16-24 17 26 37 M 8 X 1 18 28 393⁄8-16 27 42 59 M10 X 1.5 33 52 723⁄8-24 31 47 67 M10 X 0.75 39 61 857⁄16-14 43 67 95 M12 X 1.75 58 91 1257⁄16-20 49 75 105 M12 X 1.5 60 95 1301⁄2-13 66 105 145 M12 X 1 90 105 1451⁄2-20 75 115 165 M14 X 2 92 145 2009⁄16-12 95 150 210 M14 X 1.5 99 155 2159⁄16-18 105 165 235 M16 X 2 145 225 3155⁄8-11 130 205 285 M16 X 1.5 155 240 3355⁄8-18 150 230 325 M18 X 2.5 195 310 4053⁄4-10 235 360 510 M18 X 1.5 220 350 4853⁄4-16 260 405 570 M20 X 2.5 280 440 6107⁄8-9 225 585 820 M20 X 1.5 310 650 900
7⁄8-14 250 640 905 M24 X 3 480 760 1050
1-8 340 875 1230 M24 X 2 525 830 1150
1-12 370 955 1350 M30 X 3.5 960 1510 2100
11⁄8-7 480 1080 1750 M30 X 2 1060 1680 2320
11⁄8-12 540 1210 1960 M36 X 3.5 1730 2650 3660
11⁄4-7 680 1520 2460 M36 X 2 1880 2960 4100
11⁄4-12 750 1680 2730
13⁄8-6 890 1990 3230 a. in-tpi = nominal thread diameter in inches-threads per inch
13⁄8-12 1010 2270 3680 b. N· m = newton-meters
11⁄2-6 1180 2640 4290
11⁄2-12 1330 2970 4820
c. mm x pitch = nominal thread diameter in mm x thread pitch
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
5.8 8.8 10.9
2519
ft-lbd ft-lb ft-lb ft-lb ft-lb ft-lb
5.6 8 12
6 10 14 5 8 11
11 17 25 12 19 27
13 19 27 13 21 29
20 31 44 24 39 53
22 35 49 29 45 62
32 49 70 42 67 93
36 55 78 44 70 97
49 76 105 66 77 105
55 85 120 68 105 150
70 110 155 73 115 160
79 120 170 105 165 230
97 150 210 115 180 245
110 170 240 145 230 300
170 265 375 165 260 355
190 295 420 205 325 450
165 430 605 230 480 665
185 475 670 355 560 780
250 645 910 390 610 845
275 705 995 705 1120 1550
355 795 1290 785 1240 1710
395 890 1440 1270 1950 2700
500 1120 1820 1380 2190 3220
555 1240 2010
655 1470 2380
745 1670 2710
870 1950 3160d. ft-lb = foot pounds
980 2190 3560
3 5 7
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1205NT Table of Contents Index Appendix A - Reference Information 54
Note: All tires are warranted by the original manufacturer of the tire. Tire warranty information can be found in the brochures included with your Operator’s and Parts Manuals or online at the manufacturer’s websites. For service assistance or information, contact your nearest Authorized Farm Tire Retailer.
7.50 x 20" 4-Ply Drill Rib 28 11L x 15" 6-Ply Rib Implement 289.0 x 22.5 10-Ply Highway Service 70 70 11L x 15" 8-Ply Rib Implement 36
9.0 x 24" 8-Ply Rib Implement 40 12.5L x 15" 8-Ply Rib Implement 369.5L x 15" 6-Ply Rib Implement 32 12.5L x 15" 10-Ply Rib Implement 449.5L x 15" 8-Ply Rib Implement 44 12.5L x 15" 20-Ply Rib Implement 90
9.5L x 15" 12-Ply Rib Implement 60 41 x 15" x 18 - 22-Ply Rib Implement 44265/70B16.5 NHS Skid Steer 60 395/55B16.5 NHS Skid Steer 60
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1205NT Table of Contents Index Appendix A - Reference Information 55
2-Year Limited Warranty (Yield-Pro Planters)
Great Plains Mfg., Inc. warrants to the original purchaser that this seeding equipmentwill be free from defects in material and workmanship for a period of one year from theoriginal purchase date when used as intended under normal service conditions forpersonal use. This Warranty is limited to the replacement of any defective part by GreatPlains Manufacturing and the installation by the dealer of any such replacement partduring the first year of operation. Second year warranty covers parts only, excludinggeneral ground engaging parts and labor. Items covered under the second yearwarranty are as follows (parts only): hitch and main frame, gauge wheels, markers, airbox/ manifold, Y- splitter tubes, fan and housing, row unit weldments, unit mountedattachments and frame mounted attachments. Great Plains Mfg., Inc. reserves the rightto inspect any equipment or part which are claimed to have been defective in material orworkmanship. This Warranty does not apply to any part or product which, in thejudgment of Great Plains Mfg., Inc., shall have been misused or damaged by accident;or, lack of normal maintenance or care; or, which has been repaired or altered in a waywhich adversely affect its performance or reliability; or, which has been used for apurpose for which the product is not designed. This Warranty shall not apply if theproduct is towed at a speed in excess of 20 miles per hour. Soils containing rocks,stumps or other obstructions may void the warranty in its entirety.
Claims under this Warranty must be made to the dealer which originally sold the unitand all warranty adjustments must be made through such dealer. Great Plains Mfg.,Inc. reserves the right to make changes in materials or design of the product at any timewithout notice. This Warranty shall not be interpreted to render Great Plains Mfg., Inc.liable for damages of any kind, direct, consequential, or contingent to property.Furthermore, Great Plains Mfg., Inc. shall not be liable for damages resulting from anycause beyond its control. This Warranty does not extend to loss of crop, losses causedby harvest delays or any expense or loss of labor, supplies, rental machinery, or for anyother reason.
No other warranty of any kind whatsoever, express or implied, is made withrespect to this sale; and all implied warranties of merchantability and fitness for aparticular purpose which exceed the obligations set forth in this written warrantyare hereby disclaimed and excluded from this sale.
This Warranty is not valid unless registered with Great Plains Mfg., Inc. within 10 daysfrom the date of original date of purchase.
This Warranty does not cover damage caused by acts of God or accidents.
This Warranty does not cover units with excess use or units used in custom farming.
NOTE: Effective August 17, 2007; The Extended 2 Yr. Warranty covers only unitsutilizing these configurations: 1) Yield-Pro (YP) Frames, 2) 25 Series Row Units,and 3) Singulating Meters. All three criteria must be met to qualify for 2-YearLimited Warranty.
warningclevis ......................................9hydraulic .................................8moving parts ..........................8speed .....................................8tongue weight .........................7
decal, safety .........................................6Description of Unit ..............................11disposal, chemical ................................4dusts .....................................................2
