operator manual - great plains aggreat plains manufacturing, inc. table of contents index important...

Table of Contents Index

Operator Manual

Series I 3323, 3326, 3329,4330, 4333 & 4336

Disk Harrow

Manufacturing, Inc.www.greatplainsmfg.com

Read the operator’s manual entirely. When you see this symbol, thesubsequent instructions and warnings are serious - follow withoutexception. Your life and the lives of others depend on it!

Illustrations may show optional equipment not supplied with standard unit.

42101

© Copyright 2012 Printed 2012-05-22 556-100M

EN


ORIGINAL INSTRUCTIONS

http://www.greatplainsmfg.com

Great Plains Manufacturing, Inc. Cover Index iii

Table of Contents

Important Safety Information ......................................1Safety Decals .................................................................5Introduction...................................................................10Models Covered ...........................................................10Description of Unit ........................................................10Document Family .........................................................10

Manual.....................................................................10Definitions.................................................................10

Owner Assistance ........................................................11Preparation and Setup ...............................................12Prior to Going to the Field Checklist.............................12Hitching Disk Harrow to Tractor ...................................13

Electrical Hookup......................................................14Hydraulic Hose Hookup............................................14Hydraulic Hose Hookup............................................14Clevis Hitch...............................................................15Category III Hitch......................................................15Transport Locks........................................................16

First Time Field Adjustments........................................16Pre-Leveling of Machine...........................................16Main Frame Leveling................................................16Wing Leveling...........................................................17Fore and Aft Leveling ...............................................17Scraper Adjustment ..................................................18

Operating Instructions...............................................20Pre-Start Checklist .......................................................20Transport ......................................................................21

Transport Steps........................................................ 21Field Operation ............................................................ 22Field Set-Up Checklists................................................ 22General Operation and In-Field Adjustments............... 23Transport Locks ........................................................... 23

Folding Operation..................................................... 23Unfolding Operation ................................................. 23Gauge Wheel Adjustment ........................................ 24Thread Protectors .................................................... 24Adjusting and Using Tractor Hydraulics ................... 25Depth Control ........................................................... 25Front to Rear Level .................................................. 26

Rear Attachment Settings ............................................ 27Spike Drag Settings ................................................. 27Heavy Coil Tine Settings.......................................... 27

Maintenance and Lubrication ................................... 28Maintenance ................................................................ 28Lubrication ................................................................... 28

End of Season.......................................................... 31Beginning of Season ................................................ 31

Appendix..................................................................... 32DH Specifications and Capacities................................ 32Tire Inflation & Warranty .............................................. 33Hydraulic Connectors and Torque ............................... 34Torque Values Chart.................................................... 35Index............................................................................ 37

05/22/2012 Cover Index 556-100M

© Copyright 2006, 2007, 2008, 2009, 2010, 2011, 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 beentaken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed fordamages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products asit 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: Singulator Plus, Swath Command, Terra-Tine.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, Verti-Till, Whirlfilter, 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

iv 3323-4336DH Table of Contents Index Great Plains Manufacturing, Inc.

556-100M Table of Contents Index 05/22/2012

Great Plains Manufacturing, Inc. Table of Contents Index 1

Important Safety Information

Look for Safety SymbolThe SAFETY ALERT SYMBOL indicates there is apotential hazard to personal safety involved and extrasafety precaution must be taken. When you see thissymbol, be alert and carefully read the message that fol-lows it. In addition to design and configuration of equip-ment, hazard control and accident prevention aredependent upon the awareness, concern, prudence andproper 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 seri-ousness.

DANGER indicates an imminently hazardous situationwhich, 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 pur-poses, cannot be guarded.

WARNING indicates a potentially hazardous situationwhich, if not avoided, could result in death or seriousinjury, and includes hazards that are exposed whenguards are removed. It may also be used to alert againstunsafe practices.

CAUTION indicates a potentially hazardous situationwhich, if not avoided, may result in minor or moderateinjury. It may also be used to alert against unsafe prac-tices.

Prepare for Emergencies▲ Be prepared if a fire starts

▲ Keep a first aid kit and fire extinguisher handy.

▲ Keep emergency numbers for doctor, ambulance, hospitaland fire department near phone.

Be Familiar with Safety Decals▲ Read and understand “Safety Decals” on page 5, thor-

oughly.

▲ Read all instructions noted on the decals.

▲ Keep decals clean. Replace damaged, faded and illegibledecals.

05/22/2012 Table of Contents Index 556-100M

2 3323-4336DH Table of Contents Index Great Plains Manufacturing, Inc.

Use Safety Chains▲ Use safety chains to help control drawn machinery should it

separate from tractor draw-bar or trailing nurse tank hitch.

▲ Use chain with a strength rating equal to or greater thanthe gross weight of towed machinery.

▲ Attach implement chain to tractor draw-bar support orspecified anchor location. Allow only enough slack in chainfor turns.

▲ Replace chain if any links or end fittings are broken,stretched or damaged.

▲ Do not use safety chain for towing.

Avoid High Pressure FluidsEscaping fluid under pressure can penetrate the skin,causing serious injury. This Disk Harrow requires aPower-Beyond port, which is always under pressurewhen the tractor is running.

▲ Avoid the hazard by relieving pressure at other remote, andshutting down tractor before connecting, disconnecting orinspecting hydraulic lines.

▲ Use a piece of paper or cardboard, NOT BODY PARTS, tocheck for suspected leaks.

▲ Wear protective gloves and safety glasses or goggles whenworking with hydraulic systems.

▲ If an accident occurs, seek immediate medical assistancefrom a physician familiar with this type of injury.

Keep Riders Off MachineryRiders obstruct the operator’s view. Riders could bestruck 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 createa hazard when driven on public roads. They are difficultto see, especially at night.

▲ Use flashing warning lights and turn signals whenever driv-ing on public roads.

▲ Use lights and devices provided with implement.


Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 3

Transport Machinery SafelyMaximum transport speed for implement is 20 mph (32kph), 13 mph (22 kph) in turns. Some rough terrainsrequire a slower speed. Sudden braking can cause atowed load to swerve and upset.

▲ Do not tow an implement or nurse tank that weighs morethan 1.5 times the weight of towing vehicle.

▲ Carry reflectors or flags to mark Disk Harrow in case ofbreakdown on the road.

▲ Keep clear of overhead power lines and other obstructionswhen transporting. Refer to transport dimensions under“DH Specifications and Capacities” on page 32.

▲ Do not exceed 20 mph. Never travel at a speed which doesnot allow adequate control of steering and stopping. Reducespeed if towed load is not equipped with brakes.

▲ Reduce speed on rough roads.

▲ Comply with national, regional and local laws.

▲ Do not fold or unfold the Disk Harrow while the tractor ismoving.

Shutdown and Storage▲ Lower Disk Harrow, put tractor in park, turn off engine,

and remove the key.

▲ Secure Disk Harrow using parking jack provided.

▲ Detach and store Disk Harrow in an area where childrennormally do not play.

Tire SafetyTire changing can be dangerous. Employ trained person-nel using correct tools and equipment.

▲ When inflating tires, use a clip-on chuck and extension hoselong enough for you to stand to one side–not in front of orover tire assembly. Use a safety cage if available.

▲ When removing and installing wheels, use wheel-handlingequipment adequate for weight involved.



Practice Safe Maintenance▲ Understand procedure before doing work. Use proper

tools and equipment. Refer to this manual for additionalinformation.

▲ Work in a clean, dry area.

▲ Lower implement, put tractor in park, turn off engine, andremove key before performing maintenance.

▲ Make sure all moving parts have stopped and all systempressure is relieved.

▲ Disconnect battery ground cable (-) before servicing oradjusting electrical systems or before welding on DiskHarrow.

▲ Inspect all parts. Make sure parts are in good conditionand installed properly.

▲ Remove buildup of grease, oil or debris.

▲ Remove all tools and unused parts from implement beforeoperation.

Safety At All TimesThoroughly read and understand the instructions in thismanual before operation. Read all instructions noted onthe safety decals.

▲ Be familiar with all Disk Harrow functions.

▲ Operate machinery from the driver’s seat only.

▲ Do not leave Disk Harrow unattended with tractor enginerunning.

▲ Do not stand between tractor and implement, or implementand nurse tank, during hitching.

▲ Keep hands, feet and clothing away from power-drivenparts.

▲ Wear snug-fitting clothing to avoid entanglement with mov-ing parts.

▲ Watch out for wires, trees, etc., when folding and raisingDisk Harrow. Make sure all persons are clear of working



Safety Decals

Safety Reflectors and DecalsYour implement comes equipped with all lights, safetyreflectors and decals in place. They were designed tohelp 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 decalsfrom your Great Plains dealer. Refer to this section forproper decal placement.

▲ When ordering new parts or components, also request cor-responding 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.

818-055CSlow Moving Vehicle ReflectorOn the back of smv post;1 total

40869

838-615CAmber ReflectorsTwo on front of light brackets. Two on front, outside ofcenter frame. Two on outside, rear of center frame. Twoon rear of finishing attachment (not shown), visible fromside while folded for transport;8 total

40870



838-614CRed ReflectorsOn rear of light brackets (top);.2 total

40869

838-603COrange ReflectorsOn rear of light brackets (bottom);2 total

40869

838-598CCaution: Read Operator’s ManualOn front of hitch (top);1 total

40871



838-599CDanger: Electrocution HazardFront side of center frame (left side);1 total

40872

838-600CDanger: Crushing HazardFront of hitch (left, middle);1 total 40871

838-602CWarning: Overhead Wing HazardOutside, center of center frame and wing frames (bothsides);4 total 40873



838-094CWarning: High Pressure FluidFront of hitch (left, rear);1 total

41971

838-611CWarning: Hand CrushingFront side of center frame (both sides);2 total 40872

838-613CNotice: Transport LockOutside of center frame (both sides);2 total

40873



838-606CWarning: Tongue RisingFront of hitch (left, front);1 total 40871



IntroductionGreat Plains welcomes you to our growing family

of new product owners. The Disk Harrow 3323-4336DHhave been designed with care and built by skilled workersusing quality materials. Proper setup, maintenance, andsafe operating practices will help you get years of satisfac-tory use from the machine.

Models Covered

Description of UnitThe Disk Harrow 3323-4336DH is a three-section primaryand secondary tillage tool. Working width ranges from 23to 36 feet. The implement is designed to cut out and buryroots and crop residue, kill weeds and dry out the soil,level ridges and ruts and for seedbed preparation. Variousfinishing attachments are available to further smooth,redistribute residue and break clods.

Document Family

ManualThis manual will familiarize you withsafety, assembly, operation, adjust-ments, troubleshooting, and mainte-nance. Read this manual and followthe recommendations to helpensure safe and efficient operation.

The information in this manual is current at printing.Some parts may change to assure top performance.

DefinitionsThe following terms are used throughout this manual.

A crucial point of information related to the preceding topic.Read and follow the directions to remain safe, avoid seriousdamage to equipment and ensure desired field results.

Note: Useful information related to the preceding topic.

Right-hand and left-hand as used inthis manual are determined by facingthe direction the machine will travelwhile in use unless otherwise stated.An orientation rose in some line artillustrations shows the directions of:Up, Back, Left, Down, Front, Right.

3323DH 23-Foot 3-section






560-483Q Pre-Delivery Manual

560-483M Operator Manual (this document)

560-483P Parts Manual

Figure 13326 Disk Harrow

42100

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R

U

DF

B

L

R

U

DF

B

L

R



Owner AssistanceIf you need customer service or repair parts, contact aGreat Plains dealer. They have trained personnel, repairparts and equipment specially designed for Great Plainsproducts.

Refer to Figure 2Your machine’s parts were specially designed andshould only be replaced with Great Plains parts. Alwaysuse the serial and model number when ordering partsfrom your Great Plains dealer. The serial-number plate islocated on the left end of the top front tool bar.

Record your Disk Harrow model and serial number herefor quick reference:

Model Number:__________________________

Serial Number: __________________________

Your Great Plains dealer wants you to be satisfied withyour new machine. If you do not understand any part ofthis manual or are not satisfied with the service received,please take the following actions.

1. Discuss the matter with your dealership servicemanager. Make sure they are aware of any problemsso they can assist you.

2. If you are still unsatisfied, seek out the owner or gen-eral manager of the dealership.

For further assistance write to:

Product SupportGreat Plains Mfg. Inc., Service Department

PO Box 5060Salina, KS 67402-5060

(800)255-9215

Figure 2Serial Number Plate

41256



Preparation and Setup

This section helps you prepare your tractor and 3323-4336DH Disk Harrow for use, and covers tasks that needto be done seasonally, or when the tractor/Disk Harrowconfiguration changes.

Before using the Disk Harrow in the field, you must hitch itto a suitable tractor, inspect systems and level the DiskHarrow. Before using the Disk Harrow for the first time,and periodically thereafter, certain adjustments and cali-brations are required.

Prior to Going to the Field ChecklistComplete this checklist before routine setup:

❑ Read and understand “Important Safety Informa-tion” on page 1.

❑ Check that all working parts are moving freely, boltsare tight, and cotter pins are spread.

❑ Make sure your tractor horsepower matches theimplement you are pulling. This is important so theimplement can do the best possible job.

❑ Clean all hydraulic couplings and connect to tractoras shown on page 13 and 14.

❑ If machine is folded, remove the transport pins fromwing stops. (DO NOT remove pins if the wing is lean-ing against the pins or putting pressure on the pins.Use the hydraulics to pull the wings in completelybefore unpinning them.) Once the pins are removed,slowly untold the unit. Make sure no one is under thewings during the unfolding process.

❑ Check again for hydraulic leaks and watch thathoses do not get pinched in hinges, wing stops, etc.

❑ After the machine is completely unfolded, raise andlower the Disk Harrow several times to purge air fromthe hydraulic system. Again check for hydraulic leaksand tighten or replace if necessary.

❑ Check safety chain hookup. Make sure all warninglights are hooked up and functioning correctly.

❑ Check that all grease fittings are in place and lubri-cated. See “Lubrication” on page 28. The hubs willcome pre-greased and will not need greased at thistime.

❑ Check that all safety decals and reflectors are cor-rectly located and legible. Replace if damaged. See“Safety Decals” on page 5.

❑ Inflate tires to pressure recommended and tightenwheel bolts as specified. See “Tire Inflation & War-ranty” on page 33.

❑ Put transport locks in place and refold the machineslowly. Put wing stop pins in place. Always use thetransport pins when moving from field to field. Youare now ready to go to the field.


Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 13

Hitching Disk Harrow to TractorHitch to a tractor for highway transport or field opera-tions. Hitch to a leading implement only for field opera-tions. Do not transport behind another implement.

Before hitching, check the compatibility and capability ofthe towing tractor or implement:

• The 3323-4336DH Disk Harrow is a pull-type imple-ment equipped with a standard Category IV singletang hitch. It may be converted to a Category III orclevis hitch using supplied accessory parts.

To prevent soil compaction on rows, set tractor wheelsbetween rows. For hillsides and steep slopes, set tractorwheels as wide as possible for maximum stability.

1. Raise tractor three-point arms (if equipped) clear upto clear Disk Harrow.

2. For TWO-WHEEL DRIVE and MFWD tractors, pindrawbar in fixed center position for field and trans-port. For FOUR-WHEEL DRIVE and TRAC-DRIVEtractors, leave one hole clearance on each side ofdrawbar for field position, hitch damage may occur ifpinned solid. Pin in center position for transport tomaintain maximum steering control.

Refer to Figure 33. Use jack to raise and lower disk harrow tongue.

4. Back tractor draw bar into alignment with hitch .

5. Secure with a locking hitch pin.

Negative Tongue Weight Hazard:Make certain that disk harrow is securely hitched to the trac-tor or leading implement before unfolding. An unhitched diskharrow can tip over backwards during folding and unfoldingif the tongue is not secured.

6. Secure safety chain to an anchor on the tractor.

Refer to Figure 47. Retract jack foot. Re-orient jack to storage position.

8. After hitching tractor to disk harrow, store jack onstorage stob on Disk Harrow tongue.

Load Sway Hazard:

9. Lock drawbar swing to center position to minimize anyside-to-side sway to assure proper tracking in the field,and safe road travel. See “Transport” on page 21, forsafe transporting.

Figure 3Jack & Hitch Clevis

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Crushing Hazard:Do not stand or place any body part between disk harrow andmoving tractor. You may be severely injured or killed by beingcrushed between the tractor and disk harrow. Stop tractorengine and set parking brake before attaching cables andhoses.

1

2

3

Figure 4 Jack in Storage

42110

3



Electrical HookupRefer to Figure 5Plug the lighting connector into the tractor outlet.

Test the lights and signalling prior to highway movement.

Hydraulic Hose HookupGreat Plains hydraulic hoses are color coded to help youhookup hoses to your tractor outlets. Hoses that go tothe same remote valve are marked with the same color.

Hydraulic Hose Hookup

High Pressure Fluid Hazard:Shut down tractor before making hydraulic connections.Only trained personnel should work with system hydraulics.

Escaping fluid under pressure can have sufficient pressure topenetrate the skin causing serious injury. If an accidentoccurs, seek immediate medical assistance from a physicianfamiliar with this type of injury.

Use paper or cardboard, NOT BODY PARTS, to check forleaks. Wear protective gloves and safety glasses or goggleswhen working with hydraulic systems.

Refer to Figure 6To distinguish hoses on the same hydraulic circuit, referto hose label.

• The hose with an extended-cylinder symbol feeds acylinder base end.

• The hose with a retracted-cylinder symbol feeds acylinder rod end.

Secure hoses and cables so that they have sufficientslack for hitch movements, but cannot get caughtbetween moving parts of tractor, disk harrow or hitch.Failure to safely route and secure hoses and cablescould result in damage requiring component repair/replacement, and lost field time.

To distinguish hoses on the same hydraulic circuit, referto, “Hydraulic Hose Hookup” on page 14. Clean allhydraulic couplings and hook hoses to tractor.

Color Hydraulic Function

Black Lift (2 hoses)

Green Fold (2 hoses)

Red Machine Level (2 hoses)

Figure 5North American Connector

25236

Figure 6Hose Handles

31733



Clevis HitchRefer to Figure 7The base hitch must be upright (with the recessed notchon the bottom) for this configuration. This places thetongue weight on the base hitch, and not the clevis.

10. Select one each: 890-798C HITCH CLEVIS 802-487C HHCS 3/4-10X6 GR8 803-367C NUT HEX TOP LOCK 3/4-10 PLT

11. With the square-shouldered end of the clevis up,fully seat the clevis in the upright base hitch .Insert the Grade 8 bolt from below. Secure withlock nut .

Hitch Failure Hazard:Install the hitch base and assemble the clevis parts as shown.Incorrect installation or assembly may result in failure of theclevis bolt, leading to hitch failure. This could result in a seri-ous highway accident or severe machine damage.

Category III HitchThe base hitch must be inverted (with the recessednotch on the top) for this configuration. Set theV-block to allow some vertical articulation of the drawbar pin. Always use at least one cushion .

12. Select one each: PPI-302V TOP PLATE - CAT 3 PPI-203VR V-BLOCK 802-383C HHCS 3/4-10X3 GR5

and two: PPI-205H CUSHION

13. Set the cushions inside the hitch recess , just for-ward of the vertical bolt hole. Position the V-blockforward of the cushions and check the size of theresulting pinning hole. Remove a cushion if needed.

14. Add the top plate . Secure from below withGrade 5 bolt .

Figure 7Configure Hitch

317404212931741

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47

48

89

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87

82

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824862

8283

4862

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898747

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8947



Transport LocksRefer to Figure 8

15. Once the cylinders are connected, raise the unit com-pletly. If the transport locks are in place, remove themat this time.

Refer to Figure 9

16. Store the transport locks on the main frame asshown.

17. Once the locks are removed, unfold the wings.

Note: Make sure no one is under the wings during the un-folding process. Watch for leaks and make sure hosesdo not get pinched during the initial unfolding process.

18. Once the machine is unfolded, raise and lower themachine several times to purge air from the lift system.Again, watch for any leaks and tighten if necessary.

19. Check the tire pressure for proper inflation and checkthe tightness of lug bolts.

First Time Field Adjustments

Pre-Leveling of MachineNote: Pre-leveling of machine should be done on a good lev-

el surface (preferably concrete).

Main Frame LevelingRefer to Figure 10

20. Lower the machine until discs (on center frame) are 1 to2” above the surface. Set the depth stop at this depth.Raise and then re-lower machine to depth stop. Centerframe may need to be leveled from side to side. Measurethe height from center of the walking beam pivot to thebottom of the center frame on both sides.

21. If they do not match from side to side, adjust center turn-buckle as shown below.

Figure 8Transport Locks

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Figure 9Transport Locks Storage

42107

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Figure 10Center Frame Adjustment

42102

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Refer to Figure 11

22. Start by loosening jam nut on turnbuckle with turn-buckle wrench provided on machine. Adjust other nut onturnbuckle to adjust other side either up or down.

23. After adjustment of turnbuckle, re-raise unit and thenlower again to depth stop. Recheck height dimension towalking beam pivot. If necessary, adjust turnbuckleagain.

Note: .Each time the turnbuckle is adjusted, the machinemust be raised and then re-lowered to depth stop.Once unit is level, lock jam nut on the turnbuckle.

Wing LevelingRefer to Figure 12

24. Lower the machine to the preset depth stop (about 1 to2” above the surface). Measure the height from the bot-tom of the wing frame to the walking beam pivot , asshown in Figure 9.

25. If this is more or less than the center frame, adjust thewing frame accordingly with the eyebolt at the rear of thecylinder. Loosen jam nut or , depending on whichway you need to adjust eyebolt and adjust the other jamnut to desired height.

26. When wings adjusted the same as the center from mea-suring from frame to walking beam, tighten jam nut oneyebolt.

Fore and Aft LevelingNote: If machine is equipped with optional hitch cylinder in-

stead of turnbuckle proceed to Figure 13.

Figure 11Center Side to Side Adjustment

42103

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Figure 12Wing Adjustment

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5

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4 5



Refer to Figure 13

Note: Once the disk is level from side to side, it must be lev-eled from front to rear. With the self leveling hitch, oncethe disk is set for the tractor it will be level at any depth.

27. Again lower the disk to 1-2” above the ground. Adjustthe turnbuckle by loosening the jam nut with turn-buckle wrench provided on machine. Adjust turnbuckleby turning the turnbuckle assembly with turnbucklewrench until front blades are about 1/2” closer to theground than the rear blades.

28. Re-tighten the jam nut on turnbuckle.

Refer to Figure 14

Note: Once the disk is level from side to side, it must be lev-eled from front to rear. With the self leveling hitch, oncethe disk is set for the tractor it will be level at any depth.

29. Again lower the disk to 1-2” above the ground. Adjustthe hitch cylinder so that the front blades are 1/2”closer to the ground than the rear blades.

30. The lock valve will lock this length in.

Scraper AdjustmentRefer to Figure 15

31. For rigid scraper adjustment, loosen 1/2” lock nut ,allow spring to move scraper against blade, retighten1/2” lock nut .

Note: Running scraper in rigid position away from the discblade could result in premature scraper wear and plug-ging.

32. For self-adjusting operation of spring scrapers, loosen 1/2” lock nut several turns. This will allow the spring ten-sion to hold scraper against disc blade.

Figure 13Hitch Turnbuckle Leveling

42124

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2

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1 2

3

Figure 14Hitch Cylinder Leveling

42114

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5

Figure 15Spring Scraper Adjustment

42116

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23

232

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Refer to Figure 16

Note: The mounting holes in the dual scraper brackets areslotted. This will allow the scraper to be adjusted closeto the disc blade.

33. Adjust the scraper by loosening the 3/4 x 7 1/2 hexbolts on lower part of c-flex and slide bracket until it isabout an 1/8” from disc blade .

Figure 16Dual Scraper Adjustment

42124

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Operating Instructions

This section covers general operating procedures. Expe-rience, machine familiarity, and the following informationwill lead to efficient operation and good working habits.Always operate farm machinery with safety in mind.

Pre-Start ChecklistPerform the following steps before transporting the DiskHarrow to the field.

❑ Carefully read “Important Safety Information” onpage 1.

❑ Lubricate Disk Harrow as indicated under “Lubrica-tion” on page 28.

❑ Check all tires for proper inflation, “Tire Inflation &Warranty” on page 33.

❑ Check all bolts, pins, and fasteners. Torque asshown in “Torque Values Chart” on page 35.

❑ Check Disk Harrow for worn or damaged parts.Repair or replace parts before going to the field.

Check hydraulic hoses, fittings, and cylinders for leaks.Repair or replace before going to the field.

High Pressure Fluid Hazard:Relieve pressure and shut down tractor before connecting, dis-connecting or checking hydraulic lines. Use a piece of paperor cardboard, NOT BODY PARTS, to check for leaks. Wearprotective gloves and safety glasses or goggles when workingwith hydraulic systems. Escaping fluid under pressure canhave sufficient pressure to penetrate the skin causing seriousinjury. If an accident occurs, seek immediate medical assis-tance from a physician familiar with this type of injury.


Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 21

Transport

Loss of Control Hazard:Do not tow the disk harrow behind another implement on pub-lic roads. Tow the disk harrow to the field with a separate vehi-cle. The leading implement may not provide sufficient lateralcontrol of a trailing implement at highway speeds. The totalweight of the train can also exceed the steering and/or brakingcapability of the tractor. The resulting accident could causeserious injury or death.

Loss of Control Hazard:Use an adequate towing vehicle. Never tow an implement thatweighs more than 150% of the towing vehicle (transport vehi-cle must weigh at least 67% of implement). Ensure that thetowing vehicle is adequate for the task. Using an inadequatetow vehicle is extremely unsafe, and can result in loss of con-trol, serious injury and death.

See tables below for harrow transport weights.

Braking and Loss of Control Hazard:Do not exceed 20 mph (32 kph). Slow down on rough roads.

Transport StepsKnow your implement weight. If tractor capabilities aremarginal, check actual weight of implement at a scale.

1. Check that implement is securely hitched to a suffi-cient tractor (page 13).

2. Always use a locking-style hitch pin sized to matchholes in hitch and draw-bar, and rated for the load.

3. Attach safety chain to tractor with enough slack topermit turning (page 13).

4. Verify correct operation of lights.

5. Check that tires are properly inflated (page 33).

6. Plan the route. Avoid steep hills.

7. Always have lights on for highway operation.

8. Do not exceed 32 kph (20 mph). Comply with allnational, regional and local laws when traveling onpublic roads.

9. Remember that the implement may be wider thanthe towing vehicle. Allow safe clearance.



Field Operation

Equipment Damage Risk:Lift for tight turns and reverse moves. Tight turns can result ina section moving backward. Never back up with the disk har-row on the ground. If the inside tire stops or rolls backward, theturn is tight and requires lift.

Field Set-Up ChecklistsUse the following tables to develop a final checklist foryour tractor/Disk Harrow configuration. Additional orfewer steps may be necessary depending on tractor fea-tures, Disk Harrow options and planting accessories.

Mechanical Checklist (Tractor Hitching) Page

Disk Harrow hitched 13

Hitch pin locked -

Safety chain secured to tractor or leadingimplement 13

Parking jack stowed 13

Electrical Checklist Page

Verify electrical hookups solid, or connec-tor securely stowed if not using lights infield.

14

Hydraulic System Checklist Page

Check tractor hydraulic reservoir full -

Make hydraulic connections 14

Inspect connections for leaks -

Unfold Implement -



General Operation and In-FieldAdjustments1. Raise the disk completely and unfold the machine. Make

sure the fold cylinders are fully extended to allow thewings to fully flex in the field. Proceed into the field andlower the machine to the desired operating depth.

2. If satisfied, set the depth and then proceed through thefield, observing the disk for levelness, side to side andfore to aft. Although the disk was preset, See “FirstTime Field Adjustments” on page 16, to level machine.Certain field conditions can cause the disk to vary fromcenter to wings and front to rear when being pulledthrough the ground. A final adjustment may need to bemade to the disk harrow.

3. If the center is running deeper because of it followingthe tractor in soft soil, the wings may need to be set inslightly deeper (with the eyebolts) and then the entiremachine set slightly shallower (with depth stop).

Transport LocksRefer to Figure 17

Refer to Figure 18

4. The auto transport locks are designed for operatorconvenience and safety during daily field to field opera-tions. The auto locks will lock the lift and wings at thesame time. The manual u-shaped locks will only lockthe lift (not wings) and should be used for machine main-tenance and long term storage.

Folding Operation5. Always lift machine completely up before folding wings.

After machine is folded, lift the machine again to its fullraised position. Visually check that both auto locks are inposition. Set the machine down onto the auto locks.

Unfolding Operation6. Raise the machine up to its fully raised position. Unfold

the machine. If an auto lock is damaged see mainte-nance section for instructions. The auto locks can betemporally disabled by flipping the locks around to thefront. This is required if you need to set the machine onthe ground while folded.

Figure 17Auto Transport Locks

42115

1

1

2

Figure 18Manual Transport Locks

42125

2



Gauge Wheel AdjustmentRefer to Figure 197. To change the gauge wheel setting, remove the wire

retaining pin and fold gauge wheel crank up toadjust.

8. Lower or raise the gauge wheel by turning the gaugewheel crank . Raise the gauge wheels up until thedisk is adjusted in the fore-and-aft, side-to-side and tothe desired working depth you desire.

9. Fold the gauge wheel crank back down in the fieldposition and reinstall the wire retaining pin .

10. As you are running the disk through the field, stop thetractor leaving the disk in the ground. Now adjust thegauge wheels 1/2” to 1 1/2” above the ground.

11. After initial adjustment, turn gauge wheel crank thesame amount as the depth stop crank (if changed, butcrank turns opposite way than depth stop crank to keepinitial setting).

12. This position should be maintained to prevent exces-sive wear to gauge wheel parts.

Note: Tractor Speed: The ideal working speed for the diskharrow is 5 to 6 mph. Working too slow may causeplugging, poor incorporation or mixing of crop residueand reduced weed kill. Running too fast may causestreaks in chemical incorporation and ridging.

Thread ProtectorsRefer to Figure 2013. Make sure thread protector bolts are in place and

tight. Gang bolt thread damage may occur at hingepoint when gangs flex without protector caps . Lostcaps with no bolt may allow gang nut to become loose.

Figure 19Gauge Wheel

41619

3

1

241

2 3

3

42

1

3

Figure 20Thread Protector

42126

1

2

1

2



Adjusting and Using Tractor Hydraulics

Depth ControlRefer to Figure 21

14. When you have machine level and set to the desiredworking depth, set the depth stop on the depth stoptube . This is located at the front of the machine. Thiswill maintain a constant depth each time after raisingand lowering machine.One full turn of the handle willchange the depth approximately 1/4”. Turning the crankclockwise 1 turn is a 1/4” shallower working depth. Turn2 turns counter clockwise is 1/2” deeper working depth.

Note: Tires must remain on the ground at all times. Wheelsoff the ground will induce high loads on level linkageand hitch, causing premature wear and possible framefailure.

Tractor Detents15. After the depth stop on the tractor is set, in order to pre-

serve the life of the cylinders, it is important to properlyset the detent on the tractor. The 3000 and 4000 seriesdisk harrow is equipped with re-phasing lift cylinders.These cylinders have a re-phasing port at the top of thecylinder (end stroke). If the tractor flow rates and detentsare not set properly, extreme oil flow through these portscan destroy cylinder seals causing internal leakage.

16. Tractors with timed detents (electric over hydraulic): Theflow on the tractor should be set so the disk will raisefrom field position to full lift in approximately 3 to 5 sec-onds which is about 10 gpm. Not 10 on the tractor indi-cator (most new tractor can pump up to 30 gpm). Moreimportant is the detent. Once the flow has been set, setthe timed detent so that it is 1/2 to 1 second longer thanit takes to fully lift the unit. If you set it less than this it willnot properly re-phase the cylinders. If you set it morethan this, you may be causing damage to the seals.

17. Tractors with Pressure Detents: Set the flow control sothe machine raises completely in approximately 3 to 5seconds. Detent should kick out automatically at the endof stroke. If detent kicks out prematurely, slow the flowon the tractor. If the flow has to be slowed to the pointthat the unit does raise in an acceptable time frame, thedetent pressure on the tractor may need to beincreased. Contact your dealer for information on how todo this. If this problem still persists, contact the factoryservice representative for other possible adjustments.Do not try to adjust the valves on the disk harrow withoutfirst contacting the factory service rep. Tractors withpressure detents do not allow the system to “automati-cally” re-phase at the top of the lift cycle. This must bedone manually. It is recommended that after every cou-ple of trips back and forth across the field that the raiselever be pulled back and held there 1-2 seconds afterthe machine is fully raised. This will purge any air thathas been ingested into the system.

1 23

Figure 21Depth Stop

41205

412

3



18. Fold Cylinders: Fold cylinders are to extended fully infield position. Running the fold cylinders retracted maycause excessive cylinder seal damage due to constantloading from the flexing action of the wings.

Front to Rear LevelRefer to Figure 22

19. The truest way to level front to rear is to observebehind the center of the disk harrow. In most soil con-ditions, a slight ridge in the center is actually a leveloperation. More air pockets will form where soil isthrown against each other, causing a small ridge toform the will disappear after a soaking rain. If the unit isleaving a significant ridge in the center, raise the rearof the disk by extending the front leveling cylinder (orturnbuckle) so the indicator approaches “A” . If thedisk is leaving a furrow behind the machine, lower therear by retracting the leveling cylinder (or turnbuckle)so the indicator is approaching “G” . You may want toplug your red handles into your tractor opposite of theother handles so the direction of lever movementmatches the direction od disk movement.

Refer to Figure 23

20. Hydraulic Leveling Cylinder Reset: The leveling cylin-der has a two way lock valve that traps oil on bothsides of the cylinder piston. This may need to be resetafter several hours of operation. When disk is operat-ing level, take note of the letter indicator on the levelingbracket. If, over time. this pointer begins to drift fromthe indicator, reset the level. It is a good idea to hookthis set of hoses to a control so it does not get movedunintentionally.

Figure 22Depth Indicator

42106

1

2

3

12

13

Figure 23Lock Valve

42114

1

1



Rear Attachment Settings

Spike Drag SettingsRefer to Figure 2421. On the spike drag, start with 5 links hanging from the chain

in drag arm bottom slot. (This is the starting point for worstconditions). The cleaner the ground, the shorter the pullchain may be pulled up. On the spike drag, one of the linksin the first row of angles is turned over. This allows thetrash to start flowing through the drag easier by changingthe angle of the first row of teeth. Always make sure thatthe drag is never pulling off of the hang chains. If so,shorten pull chains.

Heavy Coil Tine SettingsRefer to Figure 25

22. To change angle of coil tine, remove the hair pin cotterfrom 3/4 hitch pin , remove hitch pin and move strapadjustment by moving the adjustment lever forward orbackwards. The adjustment lever has 4 holes and willchange the coil tines several degrees.

23. Re-install the 3/4 hitch pin and hair pin cotter whendesired angle is set.

Figure 24Spike Drag Settings

42153

Figure 25Heavy Coil Tine Settings

42127

1

2

12

1



Maintenance and Lubrication

Maintenance1. Always use the manual u-channel transport locks

when working on or doing maintenance to the DiskHarrow. If folded, be sure automatic transport locksare engaging and working properly. If an auto lockgets damaged, remove both locks or flip both locksforward until the damaged lock is replaced. Do notuse one auto lock with one manual lock, damagemay occur. Use manual u-channel locks until autolocks are both functional. Read and understand allsafety decals on your equipment.

2. During the first season of operation, and periodicallyafter that, check your bolts for tightness. Check diskgang bolts for loose blades. Tighten as needed.

3. Replace or rotate worn parts as needed -- hingebolts, clevis pins, bearings, blades, etc. Some Borondisc blades cannot be rolled to sharpen, they mustbe ground. Cracks and breakage will occur if rolled.The heavy blade option is rollable.

4. Check and tighten or replace any hydraulic leaks.Check hoses for any leaks. It is important that thereare no leaks on the equipment.

5. Grease wheel bearings and walking beams spar-ingly. Over greasing may cause damage to seals andreduce the life of the bearing. Take caution whengreasing walking beam pivots as not to over greaseand accidentally push the seal out of the assembly.Grease hinge points periodically.

6. Check drag bolts for loosness or excessive wear.Replace broken or bent teeth. Your drag is an impor-tant part of the tillage operation.

7. If machine is stored outdoors over the winter months,it is a good idea to fold the machine then set it downon the ground so all the cylinders are retracted toprotect the cylinder rods. This will extend the life ofthe cylinder seals and reduce internal and externalleaks.

By following and maintaining a routine service and lubri-cation program, your tillage equipment will give youmany years of service.

For the most current manual information, visit GreatPlains website listed below. For more information onoperating, adjusting or maintaining your GreatPlains Discovator, assistance is available. Contact:

Product SupportGreat Plains Mfg. Inc., Service Department

PO Box 5060Salina, KS 67402-5060

(800)255-9215

Lubrication

Wheel Bearing Hub

1 zerk on each hub;4 total

Type of Lubrication: GreaseQuantity: Sparingly, Do Not Over Grease, may causedamage to seal.

Repack wheel bearings annually or every 2500 acres.

50

50Multipurposespray lube

Multipurposegrease lube

Multipurposeoil lube

Intervals (service hours)at which lubrication isrequired

41991


Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 29

Disc Gang Bearings

One on rear of each c-flex bearing.

Type of Lubrication: GreaseQuantity: Grease every 50 hours. In heavy conditionsgrease every 10 hours or daily;

Wing Hinge

One on each wing hinge

Type of Lubrication: GreaseQuantity: Sparingly or 2 pumps

Turnbuckle

Two on turnbuckle

Type of Lubrication: GreaseQuantity: Grease every 50 hours

Auto Transport Lock

One on each auto transport lock

Type of Lubrication: GreaseQuantity: Sparingly or 2 pumps

50

10

50

50

42111

42112

42111

42128



Center Walking Beam Pivot

One on rear of each center walking beam pivot

Type of Lubrication: GreaseQuantity: Sparingly or 2 pumps and check for endplay

wing Walking Beam Pivot

One on each wing walking beam pivot

Type of Lubrication: GreaseQuantity: Sparingly or 2 pumps and check for endplay

100

100

42122

42123


Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 31

End of Season8. Clean machine as much as possible. Remove all dirt

on rust prone parts like disc blades and bolt threads.

9. Check over the machine for damaged or worn parts.Replace or rotate worn parts as needed--hinge bolts,clevis pins, bearings, blades, etc.

10. Check all bolts for tightness. Tighten as needed.

11. Check and tighten or replace any hydraulic leaks.Check hoses for any leaks.

12. The wheel bearings and tandem pivot bearingsshould be cleaned and repacked annually or 2500acres.

13. Remove the gang bolt thread protector caps andcheck gang nut torque (900 to 1100 ft-lbs). Clean outany dirt on castle nut and threads. Use Anti-Seize onthe gang bolt threads before tightening castle nut.

14. Grease the Disk Harrow in all locations shown in thelubricating section.

15. If stored outside, place a protective coating of greaseor “plow paint” on all earth working parts to preventrusting.

16. If storing outside, unfold Disk Harrow to preventwater entry into wing gang bearings.

17. If you are storing Disk Harrow unfolded, remove foldcylinder clevis bolts, block up cylinder and fullyretract cylinder rods. This will extend the life of thecylinder seals and reduce internal leaks.

18. Place boards under the disk gangs and lower theDisk Harrow to the ground retracting the lift cylinders.If disk is folded, pivot automatic transport locks out ofthe way before lowering disk.

Beginning of Season19. Hitch the tractor to the Disk Harrow and connect the

hydraulic hoses.

20. Check fold and lift cylinders for leaks that could havecaused air to enter cylinders. If leaks are noticedrepair cylinders and fully purge air from cylinders byunpinning cylinder, block up and fully cycle cylindersback and forth several times.

Unfolding machine with air in cylinders may cause death ormajor machine damage. Pin cylinders to wings and slowlyunfold machine.

21. Slowly raise the machine a couple of times to its fullheight and hold lever for 10 to 15 seconds to purgeair from lift cylinders.

22. Reposition wing automatic transport locks to engagethe lift lugs when folded.

23. If machine was not serviced and greased at end oflast season, perform steps 9 thru 14 from End ofSeason section.

24. Make sure all moving parts move freely and do notbind.

25. Take the time to read the operators manual andrefresh yourself with the safety information and oper-ating instructions.

26. It is the owner’s responsibility to see that all opera-tors of the Disk Harrow know the safety and operat-ing information found in this manual.



Appendix

DH Specifications and Capacities

With a continued commitment to constantly improving oiut products, these specifications are subject to change withoutnotice.

Model No. 3323DH 3326DH 3329DHTillage Width (9" spacing) 23' 1" (7.02 m) 26' (7.92 m) 29' (8.84 m)Tillage Width (7 1/2" spacing) 22' 11" (6.98 m) 25' 4" (7.75 m) 27' 8" (8.43 m)Center Section 9' 6" (2.90 m) 9' 6" (2.90 m) 9' 6" (2.90 m)Wing 6' (1.83 m) 7' 6" (2.29 m) 9' (2.74 m)Number of Blades (F/R) 9" Spacing 66 (32/34) 74 (36/38) 82 (40/42)Number of Blades (F/R) 7 1/2" Spacing 78 (38/40) 88 (42/44) 94 (46/48)Gang Angle (degrees) 20 front / 18 rear 20 front / 18 rear 20 front / 18 rearGang Shaft 1 3/4" Round 1 3/4" Round 1 3/4" RoundBearing Standards Spring C-Shank Spring C-Shank Spring C-ShankBearings Re-Lube Rubber Cushioned Ring Re-Lube Rubber Cushioned Ring Re-Lube Rubber Cushioned Ring Spools Ductile cast (nodular 6.5" x 4" center Ductile cast (nodular 6.5" x 4" center Ductile cast (nodular 6.5" x 4" center

12000 lbs. (5443 kg) 13800 lbs. (6260 kg) 15700 lbs. (7121 kg)Weight per Ft of Cut 522 lbs (237 kg) 531 lbs (241 kg) 546 lbs (248 kg)Weight per Blade (9" spacing) 182 lbs (83 kg) 186 lbs (84 kg) 191 lbs (87 kg)

13' 10" (4.2 m) 13' 10" (4.2 m) 13' 10" (4.2 m)Transport Height 11' (3.35 m) 12' 4" (3.75 m) 13' 8" (4.12 m)Wing Flex (degrees) 14 up 9 down 14 up 9 down 14 up 9 downTire Size (#) Center (4) 11L x 15" F-ply (4) 11L x 15" F-ply (4) 11L x 15" F-plyTire Size (#) Wing (4) 11L x 15" 8-ply (4) 11L x 15" 8-ply (4) 11L x 15" 12-plyHorsepower (PTO) (10-15 hp/ft) 230-330 260-370 290-415Kilowatt 170-246 194-276 216-310

Model No. 4330DH 4330DH 4336DHTillage Width (9" spacing) 30' 2" (9.20 m) 33' 1" (10.08 m) 35' 11" (10.95 m)Tillage Width (7 1/2" spacing) 30' 2" (9.20 m) 32' 7" (9.93 m) 36' 2" (11.03 m)Center Section 13' 6" (4.11 m) 13' 6" (4.11 m) 13' 6" (4.11 m)Wing 7' 6' (2.29 m) 8' 11" (2.72 m) 10' 4" (3.14 m)Number of Blades (F/R) 9" Spacing 86 (42/44) 94 (46/48) 102 (50/52)Number of Blades (F/R) 7 1/2" Spacing 102 (50/52) 110 (54/56) 122 (60/62)Gang Angle (degrees) 20 front / 18 rear 20 front / 18 rear 20 front / 18 rearGang Shaft 1 3/4" Round 1 3/4" Round 1 3/4" RoundBearing Standards Spring C-Shank Spring C-Shank Spring C-ShankBearings Re-Lube Rubber Cushioned Ring Re-Lube Rubber Cushioned Ring Re-Lube Rubber Cushioned Ring Spools Ductile cast (nodular 6.5" x 4" center Ductile cast (nodular 6.5" x 4" center Ductile cast (nodular 6.5" x 4" center

17200 lbs. (7802 kg) 18500 lbs. (8391 kg) 20000 lbs. (9072 kg)Weight per Ft of Cut 573 lbs (260 kg) 562 lbs (255 kg) 555 lbs (252 kg)Weight per Blade (9" spacing) 200 lbs (91 kg) 197 lbs (89 kg) 196 lbs (88 kg)

17' 10" (5.43 m) 17' 10" (5.43 m) 17' 10" (5.43 m)Transport Height 12' 4" (3.75 m) 13' 8" (4.18 m) 15' (4.57 m)Wing Flex (degrees) 14 up 9 down 14 up 9 down 14 up 9 downTire Size (#) Center (4) 12L x 15" F-ply (4) 12L x 15" F-ply (4) 12L x 15" F-plyTire Size (#) Wing (4) 11L x 15" 12-ply (4) 11L x 15" 12-ply (4) 11L x 15" 12-plyHorsepower (PTO) (10-15 hp/ft) 300-430 330-472 360-515Kilowatt 224-321 246-352 268-385

Weight (base machine 24"x 6 ga. 9" spacing)

Tansport Width

Weight (base machine 24"x 6 ga. 9" spacing)

Tansport Width


Great Plains Manufacturing, Inc. Table of Contents Index Appendix 33

Tire Inflation & Warranty

Tire Inflation Chart Tire Warranty Information

Wheel Tire Size Inflation All tires are warranted by the original manufacturer of the tire.Tire warranty information is found in the brochures included withyour Operator’s and Parts Manuals or online at the manufac-turer’s web sites listed below. For assistance or information, con-tact your nearest Authorized Farm Tire Retailer.

Manufacturer Web siteFirestone www.firestoneag.comGleason www.gleasonwheel.comTitan www.titan-intl.comGalaxy www.atgtire.comBKT www.bkt-tire.com

Wing 11L x 158-Ply RI

36 psi(248 kPa)

Transport &Wing

11L x 1512-Ply RI

52 psi(360 kPa)

Transport 11L x 15F-Ply RI

90 psi(620 kPa)

Transport 12L x 15F-Ply RI

90 psi(620 kPa)

S/N A1384P-Gauge Wheel

20.5 x 8.010-Ply LRE

90 psi(620 kPa)

S/N A1385P+Gauge Wheel

9.5L x 158-Ply

44 psi(304 kPa)


http://www.firestoneag.com

http://www.gleasonwheel.com

http://www.titan-intl.com

http://www.firestoneag.com

http://www.gleasonwheel.com


Hydraulic Connectors and TorqueRefer to Figure 26 (a hypothetical fitting)Leave any protective caps in place until immediately priorto making a connection.

NPT - National Pipe ThreadNote tapered threads, no cone/flare, and no O-ring.

Apply liquid pipe sealant for hydraulic applications.Do not use tape sealant, which can clog a filter and/orplug an orifice.JIC - Joint Industry Conference (SAE J514)Note straight threads and the 37° cone on“M” fittings (or 37° flare on “F” fittings).

Use no sealants (tape or liquid) on JIC fittings.ORB - O-Ring Boss (SAE J514)Note straight threads and elastomer O-Ring .

Prior to installation, to prevent abrasion during tight-ening, lubricate O-Ring with clean hydraulic fluid.Use no sealants (tape or liquid) on ORB fittings.

ORB fittings that need orientation, such as the elldepicted, also have a washer and jam nut(“adjustable thread port stud”). Back jam nut awayfrom washer. Thread fitting into receptacle untilO-Ring contacts seat. Unscrew fitting to desiredorientation. Tighten jam nut to torque specification.

2

5

4

98

75

3Figure 26

Hydraulic Connector ID31282

Fittings Torque ValuesDashSize Fitting N-m Ft-Lbs

-4 1⁄4-18 NPT 1.5-3.0 turns past fingertight

-5 1⁄2-20 JIC 19-20 14-15

-5 1⁄2-20 ORB w/jam nut 12-16 9-12

-5 1⁄2 -20 ORB straight 19-26 14-19

-6 5⁄16-18 JIC 24-27 18-20

-6 5⁄16-18 ORB w/jam nut 16-22 12-16

-6 5⁄16-18 ORB straight 24-33 18-24

-8 3⁄4 -16 JIC 37-53 27-39

-8 3⁄4 -16 ORB w/jam nut 27-41 20-30

-8 3⁄4-16 ORB straight 37-58 27-43

1

1

24 5

35 7

8 9


Great Plains Manufacturing, Inc. Table of Contents Index Appendix 35

Torque Values Chart

Disk Gang Torque 1 3/4”-5 900-1100 Foot-pounds (170 lbs on 6’ cheater).Wheel Bolt Torque Values 1/2”-20 (75-85 ft-lbs) 9/16”-18 (80-90 ft-lbs) 5/8”-18 (85-100 ft-lbs).

94 6

25199m

BoltSize

Bolt Head IdentificationBoltSize

Bolt Head Identification

Grade 2 Grade 5 Grade 8 Class 5.8 Class 8.8 Class 10.9in-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 0.81⁄4-28 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

25199

ft-lbd ft-lb ft-lb ft-lb ft-lb ft-lb5.6 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



31737

3-Year Limited Warranty

Great Plains Manufacturing, Incorporated warrants to the original purchaser that this tillage equipment will be free from defects in material and workmanship for a period of one year from the date of original purchase when used as intended under normal service conditions for personal use. This Warranty is limited to the replacement of any defective part by Great Plains Manufacturing, Incorporated and the installation by the dealer of any such replacement part during the first year. Second and third year warranty, parts only, excluding labor on listed items: hitch, frame, drop axles, spools, “C” shank standards, rubber mounted gang bearings and arbor bolts. Great Plains reserves the right to inspect any equipment or part which are claimed to have been defective in material or workmanship. This Warranty does not apply to any part or product which in Great Plains’ judgment shall have been misused or damaged by accident or lack of normal maintenance or care, or which has been repaired or altered in a way which adversely affects its performance or reliability, or which has been used for a purpose for which the product is not designed. This Warranty shall not apply if the product is towed at a speed in excess of 20 miles per hour. Soils containing rocks, stumps or obstructions may void the warranty in its entirety.

Claims under this Warranty must be made to the dealer which originally sold the product and all warranty adjustments must by made through such dealer. Great Plains reserves the right to make changes in materials or design of the product at any time without notice. This Warranty shall not be interpreted to render Great Plains liable for damages of any kind, direct, consequential, or contingent, to property. Furthermore, Great Plains shall not be liable for damages resulting from any cause beyond its reasonable control. This Warranty does not extend to loss of crops, losses caused by harvest delays or any expense or loss for labor, supplies, rental machinery or for any other reason.

No other warranty of any kind whatsoever, express or implied, is made with respect to this sale; and all implied warranties of merchantability and fitness for a particular purpose which exceed the obligations set forth in this written warranty are hereby disclaimed and excluded from this sale.

This Warranty is not valid unless registered with Great Plains Manufacturing, Incorporated within 10 days from the date of original purchase.

Warranty does not cover damage caused by acts of God or accidents.Warranty does not cover units with excess use or units used to custom farm.


Great Plains Manufacturing, Inc. Table of Contents 37

Index

Aaddress, Great Plains ............. 11, 28amber reflectors ................................. 5auto transport lock ........................... 29auto transport locks .......................... 23

Bbearings ........................................... 28bolts ................................................. 28

CCategory III ............................. 13, 15Category IV ...................................... 13Caution

Read Operator’s Manual ....... 6, 7CAUTION, defined ............................. 1chain ................................................ 13checklists

electrical ..................................... 22field ............................................. 22hydraulic system ........................ 22mechanical

implement ............................. 22pre-setup .................................... 12pre-start ...................................... 20

children .............................................. 2clevis hitch ....................................... 15color code, hose ............................... 14contact Great Plains ................ 11, 28covered models ................................ 10cushion ............................................. 15customer service .............................. 11cylinder symbols .............................. 14

DDANGER, defined .............................. 1decal replacement .............................. 5decals

cautionread manual .................... 6, 7

dangerelectrocution ........................... 7

noticetransport lock .......................... 8

speed30km per hr ................... 9, 10

warninghand crushing ......................... 8high pressure fluid .................. 8overhead wing ........................ 7tongue rising ........................... 9

decal, safety ....................................... 5definitions ......................................... 10depth indicator ................................. 26depth stop adjustment ...................... 25directions .......................................... 10disc gang bearings ........................... 29drag bolts ......................................... 28dual scraper adjustment ................... 19

Eemail, Great Plains ..................11, 28

Ffire ...................................................... 1

Ggauge wheel adjustment .................. 24

Hhandles, hose .................................. 14high pressure fluid ........................... 14high pressure fluids ........................... 2hills ..........................................13, 21hitch cylinder adjustment ................. 18hitch pin ........................................... 21hitch turnbuckle adjustment .....16, 18hitching ............................................ 13hose handles ................................... 14hoses, hydraulic ............................... 14hydraulic connectors ........................ 34hydraulic hoses ................................ 14hydraulic safety .................................. 2

Iinflation ............................................ 33

Jjack .................................................. 13JIC ................................................... 34Joint Industry Conference ................ 34J514 ................................................. 34

Lleaks ..........................................2, 28left-hand, defined ............................. 10lights .................................................. 2lubrication ........................................ 28

MMaintenance .................................... 28maintenance safety ............................ 4manual transport locks .................... 23medical assistance ...........2, 14, 20model number .................................. 11

NNational Pipe Thread ....................... 34negative tongue weight .................... 13Note, defined ................................... 10Notice, defined ................................. 10NPT ................................................. 34

Oorange reflector ................................. 6ORB ................................................. 34orientation rose ................................ 10O-Ring Boss .................................... 34outside wing hinge ...................29, 30owner assistance ............................. 11

Pparts ................................................ 28phone number, GP .......................... 12pin, hitch .......................................... 21

PPI-203VR, block .............................15PPI-205H, cushion ...........................15PPI-302V, plate ................................15

Rred reflectors ......................................6reflectors

amber ...........................................5orange ..........................................6red ................................................6SMV ..............................................5

reflectors, safety .................................5repair parts .......................................11reverse .............................................22riders ..................................................2right-hand, defined ...........................10rose, oriention ..................................10

SSAE J514 .........................................34safety chain ............................... 2, 13safety decal ........................................5safety information ...............................1safety symbol .....................................1scale .................................................21serial number ...................................11setup ................................................12shutdown ............................................3slopes ...............................................13SMV (Slow Moving Vehicle) ...............5Specifications and Capacities ..........32speed .................................................7speed limit

forward .......................................21transport .....................................21

spike drag .........................................27spring scraper adjustment ................18storage ...............................................3storing machine ................................28support .................................... 11, 28symbol, safety ....................................1

Ttables

document family .........................10fittings torque ..............................34hose color code ..........................14models covered ..........................10tire inflation .................................33torque values ..............................35

thread protector ................................24tire inflation .......................................33tires ....................................................3towing ...............................................21towing vehicle capability ...................21transport ...........................................21transport lock ....................................28transport locks ..................................16transport locks storage .....................16transport speed ..................................3transporting ......................................20

05/22/2012 Table of Contents 556-100M


turnbuckle ........................................ 29

UURLs, tires ....................................... 33

VV-block ............................................. 15

Wwalking beam pivot

center ......................................... 30wing ............................................ 30

WARNING, defined ............................ 1warranty ........................................... 33weight .............................................. 21weight, implement ............................ 21welding ............................................... 4wheel bearing .................................. 28

wing adjustment ...............................17Wing Depth Adjustment ....................17wing hinge ........................................29www ..................................................33

Numerics12.5Lx15 SL .....................................3313 mph ...............................................320 mph ......................................3, 2122 kph .................................................330x8.8x15 .........................................3332 kph .................................................3556-100M, manual ............................10556-100P, manual .............................10556-100Q, manual ............................10802-383C, bolt ..................................15

802-487C, bolt .................................. 15803-367C, nut .................................. 15818-055C, reflector ............................ 5838-094C, decal ................................. 8838-598C, decal .......................... 6, 7838-599C, decal ................................. 7838-602C, decal ................................. 7838-603C, reflector ............................ 6838-606C, decal ................................. 9838-611C, decal ................................. 8838-613C, decal ................................. 8838-614C, reflector ............................ 6838-615C, reflector ............................ 5890-798C, clevis ............................... 15


Great Plains Manufacturing, Inc.Corporate Office: P.O. Box 5060Salina, Kansas 67402-5060 USA


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