Frontier Hinge Wheel Off Set Disk Harrow DH4420 Assembly & Operating Instruction Manual(5RPMAN297AO

ASSEMBLY & OPERATING INSTRUCTIONS

FRONTIER MODEL DH4420 HINGE-WHEEL OFFSET DISK HARROW

FORM NO.: 5RPMAN297AO Printed in USA

PUBLISHED DATE: 06-08

INTRODUCTION READ THIS MANUAL carefully to learn how to operate and service your machine correctly. Failure to do so could result in personal injury or equipment damage. This manual and safety signs on your machine may be ordered from your Frontier dealer.

THIS MANUAL SHOULD BE CONSIDERED a permanent part of your machine and should remain with the machine when you sell it.

MEASUREMENTS in this manual are given in customary U.S. units. Use only the correct replacement parts and fasteners.

RIGHT-HAND AND LEFT-HAND sides are determined by facing in the direction the implement will travel when going forward.

WRITE DOWN PRODUCT IDENTIFICATION NUMBERS. Accurately record all the numbers to help in tracing the machine should it be stolen. Your Frontier dealer also needs these numbers when you order parts. File the identification numbers in a secure place off the machine.

WARRANTY is provided as a part of Frontier’s support program for customers who operate and maintain their equipment as described in this manual. The warranties are explained on the warranty pages that are included in this manual.

This warranty provides you the assurance that Frontier will back its products where defects appear within the warranty period. In some circumstances, Frontier also provides field improvements, often without charge to the customer, even if the product is out of warranty. Should the equipment be abused or modified to change its performance beyond the original factory specifications, the warranty will become void and field improvements may be denied. Setting fuel delivery above specifications or otherwise overpowering machines will result in such action.

CONTENTS

PREDELIVERY CHECK LIST ................................................................................................... 8 DELIVERY CHECK LIST........................................................................................................... 9 AFTER-SALE CHECK LIST .................................................................................................... 10 EACH MORNING OF OPERATION CHECKLIST ................................................................... 10 BEFORE EACH SEASON CHECKLIST .................................................................................. 10

RECOGNIZE SAFETY INFORMATION .................................................................................. 14 UNDERSTAND SIGNAL WORDS ........................................................................................... 14 FOLLOW SAFETY INSTRUCTIONS....................................................................................... 14 USE SEAT BELT PROPERLY ................................................................................................ 15 OPERATE SAFELY................................................................................................................. 15 KEEP RIDERS OFF MACHINE ............................................................................................... 16 PREPARE FOR EMERGENCIES............................................................................................ 16 WEAR PROTECTIVE CLOTHING........................................................................................... 16 PROTECT AGAINST NOISE................................................................................................... 16 USE SAFETY LIGHTS AND DEVICES ................................................................................... 17 USE A SAFETY CHAIN........................................................................................................... 17 TRANSPORT SAFETY............................................................................................................ 18 TOW LOADS SAFETY ............................................................................................................ 19 PRACTICE SAFE MAINTENANCE ......................................................................................... 20 REMOVE PAINT BEFORE WELDING OR HEATING ............................................................. 21 AVOID HEATING NEAR PRESSURIZED FLUID LINES......................................................... 21 AVOID HIGH-PRESSURE FLUIDS ......................................................................................... 22 AVOID HARMFUL ASBESTOS DUST .................................................................................... 22 STORE ATTACHMENTS SAFELY.......................................................................................... 23 DISPOSE OF WASTE PROPERLY......................................................................................... 23 POSITIONING DRAWBAR ...................................................................................................... 24 CHECKING AND LUBRICATING DISK................................................................................... 25 ADJUSTING RIGID SCRAPERS............................................................................................. 25 NOTES: ................................................................................................................................... 26 ATTACHING DISK TO TRACTOR .......................................................................................... 27 ATTACHING SAFETY CHAIN TO TRACTOR ......................................................................... 27 ATTACHING HYDRAULIC HOSES......................................................................................... 28 3

CONTENTS ATTACHING WARNING LIGHT PLUG ................................................................................... 28 DETACHING DISK FROM TRACTOR .................................................................................... 29 CHECKING TRANSPORT CONTROL OPERATION .............................................................. 30 CHECKING LEVELING ADJUSTMENT .................................................................................. 31 NOTES: ................................................................................................................................... 32 CAUTION: SAFETY GUIDELINES .......................................................................................... 33 POSITIONING TRACTOR DRAWBAR FOR TRANSPORT (FOUR WHEEL DRIVE TRACTORS)............................................................................................................................ 34 POSITIONING JACK FOR TRANSPORT ............................................................................... 34 ATTACH SAFETY CHAIN TO TRACTOR ............................................................................... 34 INSTALL TRANSPORT LOCKING DEVICES ......................................................................... 35 ATTACHING WARNING LIGHT PLUG ................................................................................... 35 TRANSPORTING THE MACHINE........................................................................................... 35 CAUTION: SAFETY GUIDELINES .......................................................................................... 36 GUIDELINES FOR USE .......................................................................................................... 37 TIGHTEN HARDWARE ........................................................................................................... 37 OPERATING SPEED .............................................................................................................. 37 OFFSET BAR HEIGHT ADJUSTMENT................................................................................... 38 POSITIONING THE DRAWBAR ANGLE SELECTING BOLT ................................................. 38 POSITIONING THE DRAWBAR ON THE OFFSET BAR........................................................ 39 POSITIONING THE DRAWBAR ON THE OFFSET BAR TO REDUCE DRAFT ON THE TRACTOR ............................................................................................................................... 40 GANG ANGLE ADJUSTMENT ................................................................................................ 41 SIDE ADJUSTMENT OF THE GANG CARRIERS .................................................................. 42 HYDRAULIC CONTROL ......................................................................................................... 43 HYDRAULIC CONTROL SCHEMATIC ................................................................................... 44 PREPARING HARROW FOR TRANSPORT........................................................................... 45 SCRAPER ADJUSTMENT ...................................................................................................... 45 LUBRICANT STORAGE.......................................................................................................... 46 LUBRICATE GANG BEARINGS.............................................................................................. 46 LUBRICATE WHEEL BEARINGS ........................................................................................... 46 DAILY INSPECTION & LUBRICATION ................................................................................... 47 CAUTION: SAFETY GUIDELINES .......................................................................................... 48 CHECKING WHEEL BOLTS AND BEARINGS ....................................................................... 49 REPACK WHEEL HUB BEARINGS ANNUALLY .................................................................... 49 GANG BEARINGS................................................................................................................... 50 DISK GANGS .......................................................................................................................... 50 HYDRAULIC HOSES .............................................................................................................. 50 REMOVING HYDRAULIC CYLINDERS .................................................................................. 51 4

CONTENTS BLEEDING TRANSPORT CYLINDER .................................................................................... 51 SERVICING DISK GANGS...................................................................................................... 52 ASSEMBLING DISK SPACERS .............................................................................................. 52 GANG AXLE NUT WRENCHES.............................................................................................. 52 TIGHTEN GANG AXLE NUTS ................................................................................................ 53 ATTACHING DISK GANGS TO STANDARDS........................................................................ 54 SERVICE TIRES SAFELY....................................................................................................... 55 CHECKING TIRE PRESSURE ................................................................................................ 55 TIRE PRESSURE CHART ...................................................................................................... 56 BEGINNING OF SEASON MAINTENANCE............................................................................ 57 END OF SEASON MAINTENANCE ........................................................................................ 57 CAUTION: SAFETY GUIDELINES .......................................................................................... 58 CHECK ALL PARTS ON PACKING LIST................................................................................ 59 STEP 1. ASSEMBLING GANGS ............................................................................................. 59 STEP 2. INSTALLING GANGS ON GANG CARRIERS .......................................................... 61 STEP 3. JOINING GANG CARRIERS..................................................................................... 61 STEP 4. INSTALLING STABILIZERS AND LATCH GROUP .................................................. 62 LATCH SUPPORT ILLUSTRATIONS...................................................................................... 63 STEP 5. ATTACHING OFFSET BAR ...................................................................................... 64 STEP 6. ATTACHING DRAWBAR .......................................................................................... 65 STEP 7. INSTALL SCRAPERS ............................................................................................... 65 STEP 7. INSTALL SCRAPERS ............................................................................................... 66 STEP 8. INSTALL HYDRAULIC CONTROL GROUP.............................................................. 67 HYDRAULIC CONTROL GROUP ILLUSTRATION................................................................. 68 INSTALL SAFETY CHAIN ....................................................................................................... 76 BEARING WEAR PLATES ...................................................................................................... 76 INSTALL WARNING LIGHTS .................................................................................................. 77

SUGGESTED REPAIR PARTS (DH4420) ................................................................... 80 SPECIFICATIONS - CONSTRUCTION OFFSET DISK MODEL DH4420............................... 81

5

CONTENTS PRODUCT IDENTIFICATION FRONTIER MODEL DH4420 HINGE-WHEEL OFFSET DISK HARROW

6

General Information GENERAL INFORMATION TO THE DEALER: Assembly and proper installation of this product is the responsibility of the Frontier dealer. Read manual instructions and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check Lists in the Operator’s Manual are completed before releasing equipment to the owner.

Note: The dealer must complete the Warranty Registration, located on the Frontier website. Warranty claims will be denied if the Warranty Registration has not been completed.

TO THE OWNER: Read this manual before operating your Frontier equipment. The information presented will prepare you to do a better job. Keep this manual handy for ready reference. Require all operators to read this manual carefully and become acquainted with all the adjustment and operating procedures before attempting to operate. Replacement manuals can be obtained from your selling dealer.

The equipment you have purchased has been carefully engineered and manufactured to provide dependable and satisfactory use. Like all mechanical products, it will require cleaning and upkeep.

Lubricate the unit as specified. Observe all safety information in this manual and safety decals on the equipment.

For service, your authorized Frontier dealer has trained mechanics, genuine Frontier service parts, and the necessary tools and equipment to handle your needs.

Use only genuine Frontier service parts. Substitute parts will void the warranty and may not meet standards required for safe and satisfactory operation. Record the model number and serial number of your equipment in the spaces provided.

Model:

Date of Purchase:

Serial Number (Total of 15-characters): Provide this information to your dealer to obtain correct repair parts.

7

Checklists CHECKLISTS PREDELIVERY CHECK LIST Check all pins to make sure retaining hardware is in place.

After the disk harrow has been completely assembled and lubricated, inspect it to be sure it is in proper operating condition before making delivery to the customer. The following check list is a reminder of points to inspect. Check off each item as it is found satisfactory.

Paint all unpainted bolts and nuts and any other parts scratched in shipment.

Connect disk harrow securely to tractor drawbar and check hydraulic system for leaks and proper operation of the hydraulic components.

The disk harrow has been assembled according to instructions. Nuts on all bolts have been tightened.

Safety chain is attached.

The axle lift fittings have been installed and lubricated.

This disk harrow has been checked and, to the best of my knowledge, is ready for delivery to the customer.

Be sure all grease fittings are installed.

Lubricate the harrow.

Check to insure that the Warranty Registration, located on the Frontier dealer website, has been submitted by the Dealer.

Tires are properly inflated.

Disk gangs rotate freely without dragging on scrapers.

(Date Set Up): (Signature of Set Up Person):

8

Checklists DELIVERY CHECK LIST Insure completion of the Delivery and Warranty Registration forms, listing serial number of machine.

The following check list is a reminder of important information that should be conveyed directly to the customer on delivery of the disk harrow. Check off each item as it is fully explained.

Explain Warranty.

Show customer how to hitch machine and operation of controls.

Advise customer that the life expectancy of this, like any other machine, is dependent on regular lubrication as described in the operator’s manual.

Explain the adjustments for operation.

Advise to use safety chain.

Explain the importance of safe and proper operation of the machine. Point out decals warning the operator of the dangers of unsafe operation procedures and conditions.

Give the operator’s manual to the customer and explain all operating adjustments and lubrication fully.

To the best of my knowledge, this machine has been delivered ready for use and the customer has been fully informed as to its proper care and operation.

The customer has been told to keep all bolts tight.

When the disk harrow is transported on road or highway at night or during the day, accessory lights and devices should be used for adequate warning to operators of other vehicles. Various safety lights and safety devices are available from your Frontier dealer. In this regard, tell customers to check local governmental regulators.

(Delivery Date): (Signature of Delivery Person):

9

Checklists AFTER-SALE CHECK LIST It is suggested the following items be checked sometime during the first six months operation of the Disk.

Check the entire disk for loose or missing hardware.

Check for broken or damaged parts. Make necessary repairs.

Re-torque the hardware.

Safety chain is properly installed.

If possible, run the disk to see if it is functioning properly.

Review the entire operator’s manual with the customer and stress the importance of proper and regular lubrication and safety precautions.

Advise the customer of optional attachments that are available.

(Date Checked):

(Signature):

EACH MORNING OF OPERATION CHECKLIST Lubricate items required daily and those whose lubrication time is due.

Look for loose or missing bolts or parts.

Check hydraulic system for leakage.

Check tire pressures and wheel bolts.

Check all pins to be sure that retaining hardware is in place.

Check all bearing assemblies and grease as necessary.

Be sure that all gang components are tight on the axles and axle nuts meet the recommended torque foot-pound pressure specified in the Axle Nut Torque Chart.

BEFORE EACH SEASON CHECKLIST Be sure recommended lubrication has been performed.

Inspect all bearings to be sure they are tight and not badly worn.

Check hydraulic system for proper operation and leakage.

Checks tire pressures and wheel bolts.

Be sure the proper operating adjustments have been made for your conditions.

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Safety Signs SAFETY SIGNS

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Safety Signs SAFETY SIGNS

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Safety Signs SAFETY SIGNS

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Safety SAFETY RECOGNIZE SAFETY INFORMATION This is the safety-alert symbol. When you see this symbol on your machine or in this manual, be alert to the potential for personal injury.

Follow recommended precautions and safe operating practices.

UNDERSTAND SIGNAL WORDS A signal word DANGER, WARNING, or CAUTION is used with the safety-alert symbol.

DANGER identifies the most serious hazards.

DANGER or WARNING safety signs are located near specific hazards. General precautions are listed on CAUTION safety signs. CAUTION also calls attention to safety messages in this manual.

FOLLOW SAFETY INSTRUCTIONS Carefully read all safety messages in this manual and on your machine safety signs. Keep safety signs in good condition. Replace missing or damaged safety signs. Be sure new equipment components and repair parts include the current safety signs. Replacement safety signs are available from your Frontier dealer.

Learn how to operate the machine and how to use controls properly. Do not let anyone operate without instruction.

Keep your machine in proper working condition.

Unauthorized modifications to the machine may impair the function and/or safety and affect machine life.

If you do not understand any part of this manual and need assistance, contact your Frontier dealer.

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Safety USE SEAT BELT PROPERLY Use a seat belt when you operate with a rollover protective structure (ROPS) or cab to minimize chance of injury from an accident such as an overturn.

Do not use a seat belt if operating without a ROPS or cab.

OPERATE SAFELY DO NOT allow others to ride on the machine or tractor.

DO NOT operate close to a ditch or creek.

SLOW DOWN when turning and traveling over rough ground OR the machine may tip over.

ALWAYS shut off tractor and shift to “Park” or set brakes when leaving tractor. Remove key when leaving tractor unattended.

Wear protective gloves to help prevent injury from cutting edges of disk blades when removing or installing scraper blades.

Park or block disk so it will not roll when disconnecting from tractor drawbar.

Lower the disk completely to the ground before unhitching from tractor. If disk is to be unhitched in raised position, tongue can whip upward when unhitching. Be sure disk is resting on transport lockups and disk is on a level and firm surface.

15

Safety KEEP RIDERS OFF MACHINE Only allow the operator on the machine. Keep riders off.

Riders on machine are subject to injury such as being struck by foreign objects and being thrown off of the machine. Riders also obstruct the operator’s view resulting in the machine being operated in an unsafe manner.

PREPARE FOR EMERGENCIES Be prepared if a fire starts.

Keep a first aid kit and fire extinguisher handy.

Keep emergency numbers for doctors, ambulance service, hospital, and fire department near your telephone.

WEAR PROTECTIVE CLOTHING Wear close fitting clothing and safety equipment appropriate to the job.

Operating equipment safely requires the full attention of the operator. Do not wear radio or music headphones while operating machine.

PROTECT AGAINST NOISE

Prolonged exposure to loud noise can cause impairment or loss of hearing.

Wear a suitable hearing protective device such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises.

16

Safety USE SAFETY LIGHTS AND DEVICES Prevent collisions between other road users, slow moving tractors with attachments or towed equipment, and self-propelled machines on public roads. Frequently check for traffic from the rear, especially in turns, and use hand signals or turn signal lights.

Use headlights, flashing warning lights, and turn signals day and night. Follow local regulations for equipment lighting and marking. Keep the lighting and marking visible and in good working order. Replace or repair lighting and marking that has been damaged or lost.

USE A SAFETY CHAIN A safety chain will help control drawn equipment should it accidentally separate from the drawbar.

Using the appropriate adapter parts, attach the chain to the tractor drawbar support or other specified anchor location. Provide only enough slack in the chain to permit turning.

See your Frontier dealer for a chain with a strength rating equal to or greater than the gross weight of the towed machine. Do not use safety chain for towing.

17

Safety TRANSPORT SAFETY ALWAYS install transport lockups on depth control cylinders.

Latch tractor brakes together. Stop slowly.

Travel at a reasonable and safe speed.

Shift tractor into a lower gear when transporting down steep slopes or hills.

Keep the SMV emblem and reflectors clean and visible from the rear.

Always pin drawbar in center position for ALL tractors when transporting.

When transporting machine on a road or highway at night or during the day, use accessory lights and devices for adequate warning to operators of other vehicles. In this regard, check local governmental regulations. Various safety lights and devices are available from your Frontier dealer.

18

Safety TOW LOADS SAFETY Stopping distance increases with speed and weight of towed loads, and on slopes. Towed loads with or without brakes that are too heavy for the tractor or are towed too fast can cause loss of control. Consider the total weight of the equipment and its load.

Observe these recommended maximum road speeds, or local speed limits, which may be lower: • If towed equipment does not have brakes, do not travel more than 32 km/h (20 mph) and do not tow loads more than 1.5 times the tractor weight.

• If towed equipment has brakes, do not travel more than 40 km/h (25 mph) and do not tow loads more than 4.5 times the tractor weight.

Ensure the load does not exceed the recommended weight ratio. Add ballast to recommended maximum for tractor, lighten the load, or get a heavier towing unit. The tractor must be heavy and powerful enough with adequate braking power for the towed load. Use additional caution when towing loads under adverse surface conditions, when turning, and on inclines.

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Safety PRACTICE SAFE MAINTENANCE Understand service procedure before doing work. Keep area clean and dry.

Never lubricate, service, or adjust machine while it is moving. Keep hands, feet, and clothing from power-driven parts. Disengage all power and operate controls to relieve pressure. Lower the equipment to the ground. Stop the engine.

Remove the key. Allow machine to cool.

Securely support any machine elements that must be raised for service work.

Keep all parts in good condition and properly installed. Fix damage immediately. Replace worn or broken parts. Remove any buildup of grease, oil, or debris.

On self-propelled equipment, disconnect battery ground cable (-) before making adjustments on electrical systems or welding on machine.

On towed implements, disconnect wiring harnesses from tractor before servicing electrical system components or welding on machine.

20

Safety REMOVE PAINT BEFORE WELDING OR HEATING Avoid potentially toxic fumes and dust.

Hazardous fumes can be generated when welding, soldering, or using torch heats paint.

Do all the work outside or in a well-ventilated area. Dispose of paint and solvent properly.

Remove paint before welding or heating: If you sand or grind paint, avoid breathing the dust. Wear an approved respirator.

If you use solvent or paint stripper, remove stripper with soap and water before welding. Remove solvent or paint stripper containers and other flammable material from area. Allow fumes to disperse at least 15 minutes before welding or heating.

AVOID HEATING NEAR PRESSURIZED FLUID LINES Heating near pressurized fluid lines, resulting in severe burns to yourself and bystanders can generate flammable spray. Do not heat by welding, soldering, or using a torch near pressurized fluid lines or other flammable materials. Pressurized lines can be accidentally cut when heat goes beyond the immediate flame area.

21

Safety AVOID HIGH-PRESSURE FLUIDS Escaping fluid under pressure can penetrate the skin causing serious injury.

Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all the connections before applying pressure.

Search for leaks with a piece of cardboard.

Protect hands and body from high-pressure fluids.

If an accident occurs, see a doctor immediately.

Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source.

AVOID HARMFUL ASBESTOS DUST Avoid breathing dust that may be generated when handling components containing asbestos fibers. Inhaled asbestos fibers may cause lung cancer.

Components in products that may contain asbestos fibers are brake pads, brake band and lining assemblies, clutch plates, and some gaskets. The asbestos used in these components is usually found in a resin or sealed in some way. Normal handling is not hazardous as long as airborne dust containing asbestos is not generated.

Avoid creating dust. Never use compressed air for cleaning. Avoid brushing or grinding material containing asbestos. When servicing, wear an approved respirator. A special vacuum cleaner is recommended to clean asbestos. If not available, apply a mist of oil or water on the material containing asbestos.

Keep bystanders away from the area.

22

Safety STORE ATTACHMENTS SAFELY Stored attachments such as dual wheels, cage wheels, and loaders can fall and cause serious injury or death.

Securely store attachments and implements to prevent falling. Keep playing children and bystanders away from storage area.

DISPOSE OF WASTE PROPERLY Improperly disposing of waste can threaten the environment and the ecology. Potentially harmful waste used with Frontier equipment includes such items as oil, fuel, coolant, brake fluid, filters, and batteries.

Use leak proof containers when draining fluids.

Do not use food or beverage containers that may mislead someone into drinking from them.

Do not pour waste onto the ground, down a drain, or into any water source.

Air conditioning refrigerants escaping into the air can damage the Earth’s atmosphere.

Government regulations may require a certified air conditioning service center to recover and recycle used air conditioning refrigerants.

Inquire on the proper way to recycle or dispose of waste from your local environmental or recycling center, or from your Frontier dealer.

23

Preparing the Tractor PREPARING THE TRACTOR POSITIONING DRAWBAR

CAUTION: Avoid personal injury or death due to losing steering control of machine. Always pin drawbar in center position for ALL tractors when transporting machine.

Place drawbar in the lower position (offset down) 16-20 inches from the ground to the top of drawbar as shown.

For four-wheel drive tractors, allow drawbar to swing by moving bolts on support of drawbar one position for field operation only.

24

Preparing the Disk PREPARING THE DISK CHECKING AND LUBRICATING DISK 1. Inflate all tires to recommended air pressure.

(See CHECKING TIRE PRESSURE in MAINTENANCE section.)

2. Perform required lubrication. See LUBRICATION section.)

3. Inspect for loose, missing, or damaged parts.

Repair if necessary.

ADJUSTING RIGID SCRAPERS Using a ratchet or other suitable wrench adjust scraper blade so curved surfaces match with curved disk blade. The heel of the scraper should be 1/4" from the disk blade. It should be slightly closer at the point so that trash build-up between the scraper and the disk blade is minimal.

The scraper should not come in contact with the disk blade as the blade turns.

Tighten the carriage bolts to 80 ft.-lbs.

25

Preparing the Disk NOTES:

26

Attaching and Detaching ATTACHING AND DETACHING ATTACHING DISK TO TRACTOR

CAUTION: Prevent serious injury or death to you or others caused by unexpected movement of the machine. Engage parking brake and/or place transmission in PARK, shut off engine, and remove key before working around hitch.

1. Back tractor into position. Raise or lower harrow drawbar to tractor drawbar using jack stand.

2. Attach drawbar clevis to tractor drawbar.

Secure drawbar pin with spring strap or hex nut.

3. Remove jack stand from hitch point on side of drawbar and install in storage position.

ATTACHING SAFETY CHAIN TO TRACTOR CAUTION: A safety chain will help control drawn equipment should it accidentally separate from the drawbar.

Using the appropriate adapter parts, attach the chain to the tractor drawbar support or other specified anchor location. Provide only enough slack in the chain to permit turning. See your Frontier dealer for a chain with a strength rating equal to or greater than the gross weight of the towed machine. Do not use safety chain alone for towing.

27

Attaching and Detaching ATTACHING HYDRAULIC HOSES CAUTION: Shut off tractor engine, work levers back and forth to relieve system of pressure.

CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all the connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high-pressure fluids.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source.

1. Plug hydraulic cylinder hoses into No.1 tractor hydraulic coupler.

ATTACHING WARNING LIGHT PLUG Attach warning light plug to 7-terminal plug on tractor.

28

Attaching and Detaching DETACHING DISK FROM TRACTOR 1. Lower disk completely to the ground with remote cylinder operating lever before unhitching from the tractor, or if disk is to be unhitched in raised position, be sure disk gangs are parallel, the transport lockups are installed and disk is on a firm and level surface.

2. Remove quick-lock pin and L-pin from tongue jack. Install jack in vertical position with handle up. Reinstall L-pin and quick-lock pin.

3. Remove weight from drawbar by cranking jack handle clockwise.

4. Disconnect warning light plug from tractor.

CAUTION: To avoid injury from escaping hydraulic oil under pressure, relieve pressure in the system by shutting off tractor and moving remote cylinder operating levers in both directions before attaching hoses to or detaching hoses from the breakaway couplers.

5. Remove hydraulic hoses (A) from tractor outlets and cover receptacles. Install dust covers over hose ends.

6.

Disconnect safety chain from tractor.

7. Remove tractor drawbar pin and drive tractor forward.

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Attaching and Detaching CHECKING TRANSPORT CONTROL OPERATION

1. Place tractor transmission in “park” and/or set brakes, then start engine and pull back on No. 1 SCV lever until transport cylinders are fully extended. Note: If the disk starts to open into the plowing position, instead of raising the transport assemblies, the diverter valve is in the wrong position. Close the harrow and insert the transport locking pin, then move the diverter valve lever to the TRANSPORT CONTROL position for operation of the transport cylinders.

Important: Remove transport locks from the cylinder rods to avoid machine damage. Always remove the left rear transport lock before removing the right rear transport lock, then remove front transport lock.

2. Remove transport locks and place in the field positions (See illustration below right).

3. Slowly move No. 1 tractor SCV lever back and forth several times while observing smooth operation of disk. The disk should raise when the lever is pulled back and lower when the lever is pushed forward. If action is reversed, reverse the hose connections in the No. 1 hydraulic quick coupler. If harrow does not raise smoothly indicating that there is air in the system, raise and lower disk several times.

30

Attaching and Detaching CHECKING LEVELING ADJUSTMENT Note: The disk may need readjusting when using a tractor with a different drawbar height.

The function of the small cylinder connecting the front frame to the leveler is to level the harrow relative to the height of the tractor drawbar during transport. Use the adjusting bolt to stop the cylinder pivot (with fully extended cylinder rod) in a position which allows it to reach the tractor drawbar with the plunger when the harrow is lifted up and the frame is parallel with ground level.

When the bolt is adjusted to the drawbar height of the tractor, it must be locked by tightening the jam nut on the rear side of the bracket. The system is designed in such a way (using different tractors) that the stop must be adjusted only once. If the harrow is in the working position with the cylinder rod fully retracted, there will always be enough free movement for the cylinder pivot to guarantee good flotation of the harrow.

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Attaching and Detaching NOTES:

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Transporting Machine TRANSPORTING MACHINE CAUTION: SAFETY GUIDELINES ONLY TRANSPORT HARROW WITH A TRACTOR. Do not transport harrow by towing with a truck or similar motor vehicle.

USE CARE WHEN HITCHING THE HARROW TO THE TRACTOR. Hands or fingers can be injured when caught between the hitch and the tractor.

NEVER ALLOW RIDERS ON THE TRACTOR OR HARROW. Serious personal injury can result from falling in the path of the harrow while in operation or transport.

OBSERVE ALL LAWS AND REGULATIONS WHILE TRANSPORTING THE HARROW. Never transport the harrow at speeds greater than 20 mph. Reduce speed and exercise caution on turns, bridges, rough roads, steep grades, and other adverse conditions.

ALWAYS INSTALL TRANSPORT LOCK DEVICES BEFORE TRANSPORTING THE HARROW. Without the transporting locking devices installed, the harrow could fall or open during transport, resulting in damage to the machine or personal injury to the operator or bystanders. Before transporting, close harrow fully and install locking pin. Raise the harrow to its full height and install locking devices. Always install transport locks in the following sequence: front, right rear, then left rear.

EXERCISE CAUTION WHEN TRANSPORTING THE HARROW ON PUBLIC ROADS. The harrow, depending on size, may be wider than a highway lane. Beware of traffic and avoid obstacles on the roadside such as signposts and mailboxes.

BE SURE THAT WARNING DEVICES ARE IN PLACE, CLEAN, AND VISIBLE. Be sure a SMV (slow moving vehicle) emblem is attached on the rear of the harrow. When transporting the harrow during the day or at night, use accessory lights and other devices in order to give adequate warning to the operators of other vehicles.

IF THE TRACTOR IS EQUIPPED WITH A SWINGING DRAWBAR, LOCK THE DRAWBAR IN THE FIXED POSITION. USE A SAFETY CHAIN TO SECURE THE HARROW TO THE TRACTOR DURING TRANSPORT. The harrow could separate from the tractor drawbar during transport resulting in severe property damage or serious injury to bystanders or passers by.

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Transporting Machine POSITIONING TRACTOR DRAWBAR FOR TRANSPORT (FOUR WHEEL DRIVE TRACTORS) 1. Pin tractor drawbar in center down position.

Note: Two -wheel drive tractors should be pinned tightly in center position at all times.

POSITIONING JACK FOR TRANSPORT Important: Avoid damage to jack. Make sure jack stand is installed in storage position on top of drawbar.

1. After hitching to tractor, remove jack stand from hitch point on side of drawbar and install in storage position on top of drawbar or located on the frame.

ATTACH SAFETY CHAIN TO TRACTOR CAUTION: A safety chain will help control drawn equipment should it accidentally separate from the tractor drawbar while transporting.

1. Attach safety chain to tractor.

(See ATTACHING AND DETACHING section).

34

Transporting Machine INSTALL TRANSPORT LOCKING DEVICES 1. Lock harrow in closed position with transport lock pin.

2. Secure transport locks on lift cylinders with locking pins and hairpin clips (See PREPARING THE HARROW FOR TRANSPORT in OPERATING THE MACHINE section).

Important: Avoid machine damage. Make sure transport locks are in place on the transport cylinder rods.

ATTACHING WARNING LIGHT PLUG CAUTION: When transporting machine on a road or highway at night or during the day, use accessory lights and devices for adequate warning to operators of other vehicles. In this regard, check local governmental regulations.

Various safety lights and devices are available from your Frontier dealer.

1. Attach warning light plug to tractor outlet socket.

2. To obtain maximum warning, be sure warning lights, reflectors and SMV sign are clean.

TRANSPORTING THE MACHINE CAUTION: When transporting machine on a smooth surface road, do not exceed maximum tractor transport speed. Reduce speed considerably when traveling over rough ground. (See TOW LOADS SAFETY in SAFETY section).

Pin drawbar in center position to prevent side-toside movement.

Reduce speed when turning. When turning, do not uncouple tractor brake pedals and apply the tractor brakes individually in an attempt to make a shorter turn.

35

Operating the Machine OPERATING THE MACHINE CAUTION: SAFETY GUIDELINES BECOME FAMILIAR WITH THE HARROW AND ITS OPERATION BEFORE RUNNING THE UNIT. Read the Operator’s Manual carefully, regardless of experience. Improper use of the disk could result in serious personal injury.

NEVER ALLOW RIDERS ON THE TRACTOR OR HARROW. Serious personal injury could result from falling in the path of the disk while in operation or transport.

BE SURE THAT BYSTANDERS ARE STANDING CLEAR OF THE DISK BEFORE FOLDING OR UNFOLDING THE WINGS - IF DISK IS SO EQUIPPED. The wings of the harrow could suddenly fall due to hydraulic failure or accidental movement of the controls resulting in serious personal injury to a bystander.

BE SURE THAT EVERYONE IS STANDING CLEAR BEFORE OPERATING THE DISK. Walk around the unit looking for people (servicemen, etc.) before mounting the tractor to operate the disk. Moving the disk while someone is between the gang assemblies could result in their serious personal injury.

NEVER WORK UNDER A RAISED HARROW. The raised harrow could fall suddenly causing serious personal injury. Lower the harrow to the ground before servicing. Never rely on the hydraulic system to hold the harrow up.

USE EXTREME CAUTION WHEN WORKING AROUND DISK BLADES. The disk blades are sharp and could cut hands, feet, etc. Wear gloves when holding the disk blades or gang assemblies.

1.

2.

3.

4.

BEFORE SERVICING THE HARROW, ALWAYS: Lower the harrow to the ground.

Shut the tractor off.

Lock the tractor’s parking brake.

Remove the key.

INADVERTENT OR UNINTENTIONAL MOVEMENT OF THE DISK WHILE WORKING AROUND THE DISK GANGS COULD RESULT IN SERIOUS PERSONAL INJURY.

36

Operating the Machine GUIDELINES FOR USE 1. Use recommended size tractor.

2. Decrease the gang angle to zero, at which point the gangs will roll on top of the ground, before making turns. Wheels are used for transport purposes only.

3. The harrow will plow most level with the front and rear gangs if the disk drawbar is level with the tractor drawbar.

4. Be sure tractor and machine have been properly prepared. (See PREPARING THE TRACTOR and PREPARING THE DISK sections.)

TIGHTEN HARDWARE After the first day of operation, check all hardware and gang bolts. Tighten as needed.

(See the MAINTENANCE section).

OPERATING SPEED The harrow should be operated between 4 and 6 mph. Reduce speed in rocky, rough or other unsafe conditions.

37

Operating the Machine OFFSET BAR HEIGHT ADJUSTMENT On each of the front gang carrier hitch plates, there are located three adjustment holes that are used to adjust the height of the offset bar.

This should be adjusted in order to make the drawbar on the disk as close to level as possible with the tractor drawbar when attached to the tractor.

If the tractor drawbar is higher than the disk drawbar, there is a tendency to pull the front disk gang out of the ground. On the other hand, if the tractor drawbar is lower, it will tend to pull the front gang deeper into the ground.

Therefore, the harrow will plow most level with the front and rear gang, if the drawbar on the disk is level with the drawbar on the tractor.

POSITIONING THE DRAWBAR ANGLE SELECTING BOLT This important adjustment increases or decreases the angle of the front and rear gang and allows you to achieve a balance between the two. If the front gang angle is increased, the rear gang angle will be decreased and if the front angle is decreased the rear angle will be increased.

The greater the angle, the more aggressive the gang will plow.

Too much angle will cause the gang to bulldoze and the soil will not flow through the disk blades. The ideal situation is for both the front and rear gangs to have close to equal amounts of angle so they plow to the same depth.

38

Operating the Machine POSITIONING THE DRAWBAR ON THE OFFSET BAR To understand how to position the drawbar plates, you first must recognize the need for this adjustment.

First of all, consider the forces acting on the single offset disk harrow.

The front gang is throwing the dirt to the right, so the forces acting against the front gang are pushing the front gang carrier to the left.

Conversely, the rear gang is throwing dirt to the left, so the forces acting against the rear gang are pushing it to the right.

As a result, the forces acting on the harrow are trying to make the harrow rotate counter clockwise.

39

Operating the Machine POSITIONING THE DRAWBAR ON THE OFFSET BAR TO REDUCE DRAFT ON THE TRACTOR The fact that the disk is trying to rotate counter-clockwise must be compensated for by shifting the drawbar plates on the offset bar to the left of the centerline. This makes the harrow heavier on the right side of the harrow as it is pulled through the ground.

The more the drawbar plates are moved to the left, the less the side draft will be on the tractor.

40

Operating the Machine GANG ANGLE ADJUSTMENT The Frontier Model OD1320 agricultural harrow is equipped with “on the go” angle control adjustment. A latch collar is provided which can be adjusted in or out on the latch bar from 0 to a maximum gang angle of 45 . At the minimum angle of 0 , the gangs will no longer plow but will roll on top of the ground. A 1750-PSI crossover relief valve in the hydraulic system protects the 3 -1/2” diameter angle control cylinder.

41

Operating the Machine SIDE ADJUSTMENT OF THE GANG CARRIERS For normal operation, this position would be located at about the center of the bolting plates.

The rear gang can be moved to the left to increase the amount of soil being thrown into the furrow or to the right to decrease it.

If the left hinge is moved one hole to the left of center on the bolting plate to which it is attached, the right stabilizer hinge must also be moved one hole to the left of center on the bolting plate to which it is attached.

Note: It is important to keep the geometry of the stabilizers and the latch bar correct.

42

Operating the Machine HYDRAULIC CONTROL System Operation The hydraulic angle control and the wheel transport assemblies are operated by a single hydraulic circuit off of the tractor, which supplies oil to the selector valve located on the front gang carrier of the disk harrow (See HYDRAULIC CONTROL SCHEMATIC on following page).

The oil enters the selector valve through the top two center ports. Oil is shifted to one of the two sets of the lower side ports (each side being a pair.)

One side feeds through the 1750-PSI relief valve to operate the hydraulic angle control cylinder.

The other side of the selector valve supplies oil for the transport lift cylinders.

The rod end of all the transport lift cylinders must return oil through the pressure-locking valve, which is attached to the selector valve. This valve prevents wheel drift (lowering of the wheels) when the harrow is open in angle and plowing.

For Transporting the Harrow Close harrow to 0 degree of angle Install transport lock pin. Push the selector valve handle to TRANSPORT CONTROL position.

Raise the harrow and install transport locks for safe transporting.

For Field Operation Fully raise the harrow and remove the transport cylinder locks. Lower the harrow by fully raising the wheels off the ground. Pull the selector valve handle to ANGLE CONTROL position operation.

Remove transport lock pin and store in field operation hole.

Note: Additional hydraulic system information can be found in the INSTALL HYDRAULIC CONTROL GROUP area of the ASSEMBLY section.

43

Operating the Machine HYDRAULIC CONTROL SCHEMATIC

44

Operating the Machine PREPARING HARROW FOR TRANSPORT The harrow operates off of a single hydraulic circuit on the tractor and is equipped with a selector valve, which can be set for either hydraulic ANGLE CONTROL or TRANSPORT CONTROL (hydraulic wheel lift operation). The use of a selector valve prevents the accidental lowering of the wheels when the disk is in angle.

Note: If the wheels are lowered when the harrow is in angle, damage can occur.

For proper transporting, the following preparation procedure should be used: 1. With the control lever, close the disk gangs until they are parallel.

2. Remove the transport lock pin from its storage position and place it in the transport position to keep the harrow from opening while being transported.

3. Move the selector valve to the TRANSPORT CONTROL position.

4. Using the tractor hydraulic control lever, raise the disk by lowering the wheels until all lift cylinders are fully stroked.

5. Install cylinder rod transport locks on each of the three transport cylinders and pin them securely in place (To TRANSPORT POSITION shown in illustration at right). Important: Install transport locks in the following sequence: front, right rear, then left rear.

SCRAPER ADJUSTMENT The point of the scraper should be set as close to the blade as possible without rubbing the heel of the scraper. This is about 1/4" away from the disk blade and should be slightly closer at the point so trash build-up between the scraper and the disk blade is minimal.

45

Lubrication LUBRICATION LUBRICANT STORAGE Your equipment can operate at top efficiency only if clean lubricants are used. Use clean containers to handle all lubricants. Whenever possible, store lubricants and containers in an area protected from dust, moisture and other contamination. Store containers on their side to avoid water and dirt accumulation.

LUBRICATE GANG BEARINGS Use medium consistency pressure grease. Grease the bearings whenever the seals appear dry. Add sufficient grease to force lubricant out under seal lip. In sandy conditions, the bearings should be lubricated daily to prevent the build-up of sand and grease just outside the sealing surface. The Timken tapered roller bearing assemblies are equipped with seals facing outward; therefore no damage can occur due to excessive lubrication.

CAUTION: Before servicing the harrow, always: 1. Lower harrow to the ground.

2. Shut the tractor off.

3. Lock parking brake.

4. Remove the key.

LUBRICATE WHEEL BEARINGS Once each season, remove hubcaps and pack the bearing cones and seals with No. 2 multi-purpose lithium grease or equivalent. Replace the grease seals if necessary. Make sure no foreign material is allowed to get into grease or bearings. Replace hubcaps.

46

Lubrication DAILY INSPECTION & LUBRICATION

Inspect for loose or missing bolts and fasteners daily.

Inspect for loose or missing scrapers.

Inspect for loose or missing gang bearing bolts.

Inspect for loose or missing pin retaining bolts.

Inspect for proper tire inflation.

Inspect for loose wheel bolts.

Inspect for loose disk gangs.

Inspect the draw bar and offset bar for loose or missing bolts.

Check wheels for side play (loose wheel bearings).

Inspect for hydraulic leaks and for damaged hoses.

When not in use store the disk harrow with all the cylinders retracted to protect cylinder rods from rust and corrosion or coat them with a good film of grease.

47

Maintenance

MAINTENANCE CAUTION: SAFETY GUIDELINES

1.

2.

3.

4.

BEFORE SERVICING THE HARROW, ALWAYS: Lower the harrow to the ground.

Shut the tractor off.

Lock the tractor’s parking brake.

Remove the key.

INADVERTENT OR UNINTENTIONAL MOVEMENT OF THE HARROW WHILE WORKING AROUND THE DISK GANGS COULD RESULT IN SERIOUS PERSONAL INJURY. NEVER WORK UNDER A RAISED HARROW. The raised harrow could fall suddenly causing serious personal injury. Always lower the harrow to the ground before servicing. Never rely on the hydraulic system to hold the harrow up.

PERIODICALLY, VISUALLY INSPECT THE HARROW. Look for hydraulic leaks, and broken, missing or malfunctioning parts and make any necessary repairs.

USE CAUTION WHEN INFLATING TIRES. Use a clip-on air chuck, extension hose with gauge, and stand to one side away from the tire when inflating to avoid the possibility of personal injury due to blow offs, etc.

Maintain proper air pressure in the tires.

Important! Never exceed manufacturer’s maximum psi. Displayed on the sidewall of the tire.

BEFORE DISCONNECTING ANY HYDRAULIC LINE RELIEVE THE PRESSURE. Escaping hydraulic oil under pressure can have sufficient force to penetrate the skin causing serious personal injury. If injured by escaping hydraulic fluid, obtain medical treatment immediately HANDLE THE GANG ASSEMBLIES WITH CARE. The disk blades are sharp and could cut hands, feet, etc. Use chock blocks to prevent the gang assembly from rolling on surfaces before assembly to the frame. Wear gloves when handling the disk blades or gang assemblies.

PURGE AIR FROM THE HYDRAULIC SYSTEM BEFORE OPERATION. Always be sure the hydraulic lines and cylinders are free of air and do not leak. After connecting the hydraulic lines, carefully cycle the hydraulic cylinders several times to purge air from the hydraulic system. Visually check all connections for leaks before cycling the hydraulic cylinders.

48

Maintenance CHECKING WHEEL BOLTS AND BEARINGS Check tightness of all wheel bolts and wheel bearings during the first week of operation, and periodically after that.

Torque wheel bolts: 8-bolt hub –80-100 lb/ft To adjust wheel bearing, remove center hubcap and cotter pin. Raise the wheel and turn it. Tighten nut until there is a slight but noticeable drag on the bearing. Do not back the nut off. Place cotter pin in nearest hole to secure nut. Replace hubcap.

Note: When placing the hub on the spindle, care must be exercised to avoid damaging the seal.

REPACK WHEEL HUB BEARINGS ANNUALLY Wheel hub bearings should be repacked once a year with wheel bearing grease. Replace the grease seals if necessary.

Remove wheel hubs.

Place bearings, seals, caps, washers, and nuts in clean container and clean with kerosene or other solvents.

Inspect the bearings and seals. If they are not in satisfactory condition, replace them with new parts available from your Frontier dealer.

Clean inside of hubs.

Pack the bearing cones and seals with No. 2 multi-purpose lithium grease or equivalent.

Make sure no foreign material is allowed to get into lubricant or bearing.

Re-install the hub and bearings. Refer to the illustration for proper assembly.

Be sure to: 1. Press the oil seal very lightly against the shoulders in the hub.

2. Press the cups against the shoulders in the hub.

3. Press the sleeve to the shoulder in the hub.

Note: See information above for proper wheel hub bearing adjustment instructions.

49

Maintenance GANG BEARINGS Check the gang bearings every 400 to 500 hours of operation for proper adjustment. If end play is detected, remove shims from under the bearing cap in order to eliminate it. However, if too many shims are removed, the bearing will run tight. This is undesirable and will result in accelerated wear of the bearing rollers and races.

Note: The Neoprene seals should be watched closely for wear. These seals should last for 1000 to 1500 hours of use. When they become worn, they must be replaced. The successful operation and extended life of the bearing depends on keeping it dirt free.

DISK GANGS All nuts and bolts must be kept tight. Special attention must be given to keeping the axle nuts tight.

Important: Tighten axle nuts daily during the first (7) seven days of operation when the harrow is new or after replacing an axle, disk blade, spacer or bearing. After the next 36 to 40 hours of operation, tighten again. If these nuts are not kept tight, axles will bend or break, disks will turn on the axle, and all components of the gang will be damaged.

HYDRAULIC HOSES Periodically, inspect all hydraulic hoses for leaks, abrasions, and cracks. Tighten all fittings and replace hoses as necessary.

FASTENERS Tighten all fasteners after the first day of operation.

Refer to Torque Chart to set proper torque values.

50

Maintenance REMOVING HYDRAULIC CYLINDERS CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all the connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high-pressure fluids.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source.

1. Lower the disk to the ground.

2. Shut off tractor engine and move hydraulic levers back and forth to release pressure.

3. Disconnect hoses at tractor and cylinder ports. Cover tractor outlets, cylinder ports and hose ends.

4. Remove cylinder pins. Check and repair as necessary. (See your Frontier dealer.)

5. When installing cylinders, follow instructions below for bleeding transport cylinder.

BLEEDING TRANSPORT CYLINDER CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high-pressure fluids.

Extend and retract transport cylinder several times, pausing at full extension for (5) five seconds to remove all trapped air.

51

Maintenance SERVICING DISK GANGS CAUTION: When removing disk gangs, use suitable lifting devices or support stands to prevent injury. Block disk gang to keep it from rolling. Wear gloves and other safety equipment to avoid injury.

1. Remove hex nut, hex jam nut, and hex bolt fastening disk gang bearings to bearing standards on gang carriers.

2. Raise harrow slightly to roll disk gang away from harrow.

3. Block gang to prevent rolling. Support harrow frame.

4. Use axle nut wrenches to loosen gang axle nuts. See TIGHTEN GANG AXLE NUTS in this section.

ASSEMBLING DISK SPACERS Important: When gangs are disassembled, be sure to wire brush spools and center of disk blades to remove dirt, grit, rust and point. You MUST have metal-to-metal contact between spools and disk blades to ensure satisfactory gang tightness.

Reassemble gangs so curved surfaces of spools and disk blades match (bold arrows).

GANG AXLE NUT WRENCHES Tightening of gang axle nuts using Frontier offset gang axle nut wrenches is easier and safer.

These (2) two axle nut wrenches, Frontier Part No. 5RP2R81, are included with your harrow.

52

Maintenance TIGHTEN GANG AXLE NUTS CAUTION: Wear gloves and other safety equipment to avoid injury.

Oil threads on axle and using the axle nut wrenches provided, tighten the axle nuts as tightly as possible. For best results and added leverage, place a (4) four or (5) five foot length of 2-inch pipe on each axle nut wrench to serve as an extension of the handle and hit it with a hammer. Using a torque wrench, check to be sure that the recommended lbs/ft torque has been achieved. See the Frontier Torque Chart below for the proper torque setting of your particular gang axle nut size. Mount the axle nut lock to either the bumper washer or the axle washer and secure axle nut with bolt and lock washer.

Important: Re-tighten axle nuts after the first 10 to 12 hours of operation. Thereafter, visually inspect axle nuts daily for tightness and retighten as necessary to ensure that proper torque requirement is maintained.

53

Maintenance ATTACHING DISK GANGS TO STANDARDS

CAUTION: Use suitable lifting devices or support stands to prevent disk from falling. Block disk gang when not rolling it into place. Wear gloves and other safety equipment to avoid injury.

Where lifting facilities are available: 1. Position front gang assembly with concave side of disks to right, as viewed from the rear.

2. Position rear gang assembly with concave side of disks to left, as viewed from the rear.

3. Place gang carriers on corresponding gang assemblies and attach to bearing standards with bearing hex bolts, hex jam nuts, hex nuts and bearing wear plates.

Where lifting facilities are limited: 1. Position gang carriers upside down.

Place gang assemblies on gang carriers and attach to bearing standards with bearing hex bolts, hex jam nuts, hex nuts and bearing wear plates.

2. Turn completed assemblies of gangs and gang carrier right side up.

54

Maintenance SERVICE TIRES SAFELY

CAUTION: Explosive separation of a tire and rim parts can cause serious injury or death.

Do not attempt to mount a tire unless you have the proper equipment and experience to perform the job.

Always maintain the correct tire pressure. Do not inflate the tires above the recommended pressure. Never weld or heat a wheel and tire assembly. The heat can cause an increase in air pressure resulting in a tire explosion. Welding can structurally weaken or deform the wheel.

When inflating tires, use a clip-on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly. Use a safety cage if available.

Check wheels for low pressure, cuts, bubbles, damaged rims or missing lug bolts and nuts.

CHECKING TIRE PRESSURE Equal pressure in all tires is necessary for even penetration. A low tire will cause deeper penetration on one side than the other. The increased penetration on one side will result in side draft of the disk. Inflate tires to pressure shown in chart.

See TIRE PRESSURE CHART in this section.

55

Maintenance

TIRE PRESSURE CHART

Tire Size

Load Indicator

Max Speed

7.50 x 16 6 Ply 7.50 x 16 10 Ply 9.5L x 15 8 Ply 11L x 15 FI 12.5L x 15 10 Ply 12.5L x 15 12 Ply 12.5L x 15 FI 12.5L x 16 12 Ply 16.5 x 16.1 10 Ply 21.5L x 16.1 12 Ply 385/65R 22.5

6 Ply 10 Ply 8 Ply F 10 Ply 12 Ply F 12 Ply 10 Ply 12 Ply T

25 MPH 25 MPH 25 MPH Intermittent Highway 25 MPH 25 MPH Intermittent Highway 25 MPH 25 MPH 25 MPH 65 MPH

Max Load@ Inflation PSI 1930 lbs @ 36 PSI 2680 lbs @ 60 PSI 2470 lbs @ 44 PSI 3960 lbs @ 90 PSI 3420 lbs @ 44 PSI 3860 lbs @ 52 PSI 4680 lbs @ 90 PSI 3960 lbs @ 52 PSI 5200 lbs @ 35 PSI 7150 lbs @ 32 PSI 9370 lbs @ 120 PSI

Suggested PSI 36 50 42 80 40 48 80 50 35 30 95

CAUTION: Check tire pressure regularly

WARNING: Never pull disk harrows faster than 20 miles per hour

DANGER: Never use rims from other equipment. Tire pressures above 60 PSI require special rims

56

Storage STORAGE BEGINNING OF SEASON MAINTENANCE 1. Clean off any dirt or grease that may have accumulated on moving parts. This will prevent abrasive action that could cause excessive wear.

2. Thoroughly inspect the disk for loose parts and adjust as necessary.

3. Inflate tires to correct pressure.

4. Clean grease off hydraulic cylinder rods.

5. If there is evidence of hydraulic oil leakage, correct the problem.

END OF SEASON MAINTENANCE 1. Clean disk thoroughly to remove dirt and trash, which hold moisture and cause rusting.

2. Lubricate disk. BE SURE to grease gang bearings, rotate the gangs and grease again. This procedure WILL extend bearing life.

3. Store disk where it is adequately protected from the weather.

4. Coat exposed hydraulic cylinder rods with grease.

5. Apply a good rust preventive, such as paint or a heavy coating of grease, to disk blades. Paint is available from your Frontier dealer.

6. Inspect for worn and damaged parts.

Replace them now to make sure disk will be ready for next season.

57

Assembly ASSEMBLY CAUTION: SAFETY GUIDELINES WEAR PROPER ATTIRE WHEN ASSEMBLING HARROW. Always wear relatively tight and belted clothing to avoid entanglement in equipment.

Wear sturdy, rough-soled work shoes and protective equipment for eyes, hair, hands, hearing and head.

HANDLE THE DISK GANG COMPONENTS WITH CARE DURING ASSEMBLY. The disk blades are sharp and could cut hands, feet, etc. Wear gloves when handling the disk blades or gang components.

Disk blades and gang components are heavy and can be awkward to handle during assembly of the gang. Two-person gang assembly is recommended. Use overhead lifting device or other supports if necessary to insure safe assembly of the disk gang.

HANDLE THE GANG ASSEMBLIES WITH CARE. The disk blades are sharp and could cut hands, feet, etc. Wear gloves when handling the disk blades or gang components.

Disk blades and gang components are heavy and can be awkward to handle during assembly of the gang. Two-person gang assembly is recommended. Use overhead lifting device or other supports if necessary to insure safe assembly of the disk gang.

SUPPORT THE FRAME ASSEMBLY DURING ASSEMBLY. Support the harrow frame with stands or lifting devices that are in good condition and that are capable of handling the weight of the assembly. Be sure that the supports are on a clean, dry surface.

PURGE AIR FROM THE HYDRAULIC SYSTEM BEFORE OPERATION. After connecting the hydraulic lines, carefully cycle the hydraulic cylinders several times to purge air from the hydraulic system. Visually check all connections for leaks before cycling the hydraulic cylinders.

NEVER USE YOUR HANDS TO CHECK FOR HYDRAULIC LEAKS. Escaping hydraulic oil under pressure can have sufficient force to penetrate the skin causing serious personal injury. If injured by escaping hydraulic fluid, obtain medical treatment immediately.

58

Assembly CHECK ALL PARTS ON PACKING LIST For Export Shipment assembly procedure, follow steps 1 through 8.

For Domestic Shipment assembly procedure, follow steps 3 through 8.

Note: Use of the parts diagrams and parts listings in the Repair Parts catalog (#5RPMAN297P) may facilitate assembly of the disk harrow.

STEP 1. ASSEMBLING GANGS For shipping purposes, the bearings, spacers, axle washer, bumper washer, axle nuts and axle nut locks are shipped bundled together.

To assemble the gangs, these following steps should be observed.

Mount disk blades on each axle assembly as shown. The number of disks and spacers will vary for each size gang.

A. Remove the axle nut on the bumper washer end of the shipping assembly. The bumper washer is the one that fits the convex surface of the disk blade.

B. Remove all bearings and spacers on the axle. This leaves only the bumper washer, an axle nut lock and one axle nut on the axle.

C. Important: Care should be taken to prevent damage to the axle threads as parts are slid off and on the axle.

D. Slide one disk blade down the axle until it contacts the axle washer. Note: The axle washer fits the concave side of the disk blade. Bearings and spacers have concave and convex ends. Curvatures must mate with disks or the gangs will not stay tight and damage will result. Now, slide a bearing onto the axle.

59

Assembly STEP 1. ASSEMBLING GANGS – cont.

E. Raise the axle into a vertical position. Axle, blade and bearing will now stand in an upright position without being held. If the axle washer is not snug against concave side of the disk blade, it will be necessary to tilt axle and disk blade and slide a short 1" x 4" block of wood underneath the disk.

Be sure to position it between the nut and the floor or ground. This assures that the threaded end of the axle will be visible when the gang is completely stacked.

Note: If this procedure is not followed, the shaft will be too short and the nut cannot be installed.

CAUTION: Gang components are heavy. Two-person gang assembly is recommended. Follow Safety Guidelines.

F. Refer to the illustration and continue to slide the disks, spacers, and bearings down the axle exactly in the order shown turn disk blades to make sure that the dimples lock in so the bearings and spacers set all the way against the disk blades. Important: Make sure that concave and convex faces on the washers, bearing assemblies, and disk spacers coincide with the faces of the disks. Note: Concave and convex flanges on the bearing assemblies are factory mounted to correspond to the front and rear gangs in order to have the grease fittings always facing to the rear. This makes it easier to grease the bearings.

Using the axle nut wrenches, tighten both axle nuts as tight as possible.

G. After the last disk blade is in place, place the bumper washer onto the axle. Replace axle nut after applying lubricant to axle threads. Tighten to remove all slack. Final tightening should be done in the horizontal position.

For best results and added leverage, place a four or five foot length of 2-inch pipe on each axle nut wrench to serve as handle extensions.

It may be necessary to hit the pipe extension with a hammer to meet recommended lbs/ft of torque as set forth in the Torque Chart found in the MAINTENANCE section – TIGHTEN GANG AXLE NUTS. Mount axle nut locks to axle and bumper washers and secure with hex bolts and lock washers.

H. Use an overhead crane or hoist to lower the disk to the horizontal position on floor.

Use chock blocks to prevent rolling.

60

Assembly STEP 2. INSTALLING GANGS ON GANG CARRIERS Where lifting facilities are available: A. Position front gang assembly with concave side of disks to right, as viewed from the rear.

B. Position rear gang assembly with concave side of disks to left, as viewed from the rear.

C. Place gang carriers on corresponding gang assemblies and attach to bearing standards with the bearing, hex jam nuts, hex nuts and bearing wear plates.

Where lifting facilities are limited: A. Position gang carriers upside down.

Place gang assemblies on gang carriers and attach to bearing standards with the bearing hex bolts, hex jam nuts, and hex nuts.

B. Turn completed assemblies of gangs and gang carrier right side up.

C. Install disk scrapers.

STEP 3. JOINING GANG CARRIERS Position the rear gang carrier in a level, upright position by blocking up under the hitch plates and gang carrier. Attach pivot hinge at the hinge point with hinge pin (Note: Clean grease and paint from bushings before installing hinge pin).

Move front gang carrier into position and bolt pivot hinge to front gang carrier with bolts provided (Note: The machined 1 1/4” x 3” hightolerance bolts also serve as dowels. A portion of each bolt is not threaded). For operation in most soil conditions, it is recommended that the pivot hinge be bolted approximately in the center of the gang carrier bolting plate. Do Not Fully Tighten!

Install two grease fittings in pivot hinge and lubricate hinge pin.

61

Assembly

STEP 4. INSTALLING STABILIZERS AND LATCH GROUP Attach rear stabilizer and latch support beam to the rear gang carrier with pins provided. Swing the front stabilizer with stabilizer hinge over right plate on front gang carrier (Note: Loosen port plugs on angling cylinder to allow for extension of the cylinder during stabilizer assembly). Bolt stabilizer hinge into position with 1” x 3” bolts provided to coincide with position of pivot hinge (See illustration at right and on following page).

Pivot hinge and stabilizer hinge should be bolted in the same relative position on the front gang carrier bolting plates. Important: Do not tighten fully until all bolts have been started!

The latch support assembly works in conjunction with the hydraulic angle control system. Its function is to maintain the angle between the front and rear gangs when the harrow is in operation. It also holds the gangs parallel and supports the front gang during transport.

A transport lock pin with a handle and click pin are provided with the latch group assembly to keep the harrow closed during transport. There are two holes in the latch. The storage position hole is located on the backside of the latch support. The locking position hole is located on the front side of the latch support (See illustration at right and on following page).

62

Assembly LATCH SUPPORT ILLUSTRATIONS

63

Assembly STEP 5. ATTACHING OFFSET BAR Bolt offset bar to hitch plates on front gang carrier with bolts and bushings provided in offset bar. See Illustration. The hitch plates are provided with three holes. For normal operation in average soil conditions, bolt the offset bar to the center holes; for hard soils and deepest penetration, use upper holes. For light soil and lesser penetration, bolt to the lower holes.

64

Assembly STEP 6. ATTACHING DRAWBAR The drawbar is attached to the offset bar with three bolts, nuts and lock washers. The harrow may be moved laterally behind the tractor by moving the drawbar on the offset bar.

For initial setup the drawbar plates should positioned to the left of center on the offset bar.

To make major changes or large offsets, the drawbar plates should be moved on the offset bar.

To make minor or small offsets, remove the drawbar-positioning bolt, loosen the drawbar pivot bolt and move the drawbar between the plates to the desired position and secure. When properly adjusted, there will be no side draft and the drawbar should be in the approximate line of travel.

The final adjustment should be made after the harrow has been put into operation, observing the proper angle and trailing of the harrow.

The drawbar plates are adjustable so they can be mount directly under the leveling-cylinder mounting bracket.

The only time the shims are used is when the drawbar plates are not mounted underneath the cylindermounting bracket.

65

Assembly STEP 7. INSTALL SCRAPERS Install the scrapers as shown in Illustration. The scraper should be adjusted so that it does not come in contact with the disk blade as it turns. It should be slightly closer at the point so that the trash build-up between the scraper and the disk blade is minimal.

66

Assembly STEP 8. INSTALL HYDRAULIC CONTROL GROUP HYDRAULIC GROUP OPERATION (For additional reference see HYDRAULIC CONTROL GROUP ILLUSTRATION on next page) The hinge wheel disk harrow is supplied hydraulic oil from the tractor by a single pair of hydraulic lines. These lines attach to the top ports of a diverter valve mounted at the front of the disk.

Depending on the position of the diverter valve handle, oil flows to one of two pairs of side ports on the diverter (selector) valve.

When the handle is pushed to the position marked TRANSPORT CONTROL, as shown on the diverter valve decal, the 5 “x 12” wheel lift cylinders and 3” x 6” tongue leveler cylinder can be operated. With the diverter valve handle in this position the harrow wheels can be raised for plowing or lowered for transport. Important: The disk should be fully closed (i.e., both gangs parallel) before moving the diverter valve handle to the TRANSPORT CONTROL position.

Attached to the diverter valve is a pressure locking valve (pilot-operated check valve) which prevents the wheels from drifting down when the disk is in the plowing position.

When the diverter valve handle is pulled to the position marked ANGLE CONTROL, as shown on the diverter valve decal, oil from the tractor will flow to the 4” x 32 “ angling control cylinder for “on the go” control of gang angle while plowing. Important: The transport wheels should be fully raised before moving the diverter valve to the ANGLE CONTROL position.

The angle control circuit is protected from over pressure by a 1750 PSI crossover relief valve mounted to the inside of the front gang carrier pivot hinge.

The DH4420 disk harrow requires that the operator manually shift the diverter valve from ANGLE CONTROL (plowing) to wheel TRANSPORT CONTROL from outside the tractor. This prevents the operator from accidentally lowering the wheels while in the plowing position.

67

Assembly HYDRAULIC CONTROL GROUP ILLUSTRATION

68

Assembly

HYDRAULIC GROUP ASSEMBLY INSTALLATION For a detailed description and part numbers refer to the hydraulic group at the end of the assembly steps.

Note: Always use a high quality, high-pressure hydraulic thread sealant on all pipe thread fittings to prevent hydraulic leaks. Refer to the HYDRAULIC CONTROL GROUP ILLUSTRATION (previous page) for locating the hydraulic components on the harrow. Refer to the hydraulic group assembly diagram and parts listing found in this manual for part numbers and descriptions on individual components.

STEP A Attach the 3” by 6” hydraulic cylinder base end to the frame leveler on the front gang carrier. Then attach the rod end of the cylinder to the cylinder mounting bracket on the offset bar. Remove the shipping plugs from the cylinder ports and install the cylinder fittings as shown on the HYDRAULIC CONTROL GROUP ILLUSTRATION. CAUTION: The 3” x 6” cylinder base end port uses two fittings to connect the hydraulic hose. One of the two fittings is a restrictor fitting. The restrictor fitting allows the oil to move out of the cylinder more slowly when the disk is being lowered to the ground from the raised position. If the restrictor fitting is not placed in the base end port the front of the disk will fall rapidly when the disk is being lowered from the raised position!

69

Assembly

STEP B Attach pressure locking valve port #2 to the selector valve as shown in the HYDRAULIC CONTROL GROUP ILLUSTRATION. Then install all other fittings in the two connected valves. Bolt the valves to the front gang carrier-mounting pad so that the selector valve handle is to the front of the harrow.

STEP C Install four hydraulic fittings in the 1750-PSI crossover relief valve and bolt it to the mounting pad located on the inside of the front pivot hinge.

STEP D Install two 5” x 12” hydraulic cylinders with the base attached to the rear gang carrier and the rod end attached to the wheel transport units. Install 90-degree fittings in the rod end and straight fittings in the base end ports.

STEP E Attach hydraulic hoses to the rod end of the 5”x 12” wheel cylinders and to the rod end of the 3” x 6” tongue lever cylinder. Do not completely tighten any fittings until all hoses have been installed in their respective hose clamps. Note: The rod end of all three of these cylinders must tee together and attach to the #1 port on the pressure locking valve to prevent wheel drift when plowing. Important: All hoses passing from front to rear over the pivot hinge should be left enough slack for full gang angling movement from 0 to 45 degrees.

70

Assembly STEP F Attach hydraulic hoses to the base ends of the 5” x 12” wheel cylinders. Note: Make certain to orient the base end hose stems so that the 45 degree stems are turned to the front of the harrow when tightened to prevent them from hitting the gang carrier box frame when the wheels are fully raised off of the ground (see illustration below). Important: Insure that both hoses attached to each transport wheel cylinder have enough slack to allow for full up and down movement of the transport wheels after all hose clamps are tightened.

Attach hydraulic hose to the base end of the 3” x 6” tongue leveler cylinder. Important: Make sure the restrictor fitting is installed at the base end as noted in step #1. Attach these hoses to the lower inside port on the selector valve next to the pressure-locking valve.

Note: A pilot line for the pressure-locking valve is teed into the hoses feeding the base ends of the cylinders and it attaches to port #3 of the pressure-locking valve.

STEP G Attach the two hoses that connect the lower outside of the selector valve ports to the1750 PSI crossover relief valve.

STEP H Remove the shipping plugs from the 4” x 32” angle control cylinder and install two 90 degree fittings in the cylinder. Install hydraulic hoses between the 1750 PSI relief valve and the 4” x 32” angle control cylinder.

STEP I Install the hydraulic hoses from the tractor to the diverter valve. Install the male quick couplers on the hoses.

STEP J Loosely install the hose clamps. Note: Do not tighten. These clamps are also used to hold the light harness and will be tightened after installation of the warning light group.

Important: Once the hoses are all installed and are clamped down loosely, start at the rear of the disk and tighten all hydraulic connections/fittings on the disk harrow.

STEP K Attach cylinder transport locks to the gang carrier brackets when not in use for transport.

71

Assembly STEP L After connecting and tightening all of the hydraulic cylinders, lines, fittings and couplers, carefully cycle the hydraulic cylinder systems several times to purge air from the systems. Note: Visually check all connections for leaks before cycling the hydraulic systems.

CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high-pressure fluid If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source.

Purge air from hydraulic systems as follows: First, attach disk and hydraulics to tractor as described in ATTACHING DISK TO TRACTOR in ATTACHING AND DETACHING section.

Next, pull lever on Diverter Valve for ANGLE CONTROL as illustrated on DIVERTER VALVE OPERATION decal (shown at right) and cycle the 4” x 32” hydraulic angling cylinder several times to purge it of air. Important: If transport wheel cylinders cycle when Diverter Valve lever is in ANGLE CONTROL position, this indicates incorrect installation of hydraulic hoses. Refer to diagram on following page to correct the problem. When done purging air from angling cylinder, lock harrow closed with Transport Lock Pin. Finally, push lever on Diverter Valve for TRANSPORT CONTROL as illustrated on DIVERTER VALVE OPERATION decal (shown at right) and cycle the wheel transport cylinders several times to purge them of air.

72

Assembly NOTES:

73

74

# 5RP3030757 HYDRAULIC GROUP ASSEMBLY MODEL OD1320

Assembly

5RP5000673

5RP3045299

5RPH340J8130

5RP5000593

17

18

19

20

5RP5005402

5RP5000685

16

5RP3028424

5RP5005124

15

26

5RPH340J838

14

25

5RP038300B5

13

5RP5005277*

5RP050125B5

12

24

5RP5000222

11

5RP5000578

5RP3006824

10

23

5RP5000424

9

5RPH340J872

5RP5000583

8

5RP5000597

5RP5000632

7

22

5RP038100B5

6

21

5RPTBX50

5RPLW038

5RPAW3270

3

5

5RP3006068

2

4

5RP5004267

PART NO.

1

REF NO.

1

1

1

2

1

2

1

2

1

3

1

1

2

2

2

1

2

1

5

2

9

11

3

1

2

2

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

QTY. REF NO.

5RP5005571

5RPCK025200

5RP3004988

5RP5000185

5RP5000611

5RP5002790*

5RP3007070

5RPH340J8155

5RP5005395

5RP3028420

5RP5005125*

5RP5000618

5RP5000647

5RPH340J846

5RP3008200

5RP5000554

5RP3007069

5RP3007076

5RP5005098

5RP031250B5

5RPLW031

5RP5000580

5RP3005521

5RPN038

5RPLW050

PART NO.

75

PART NAME

HAIR PIN

COTTER KEY 1/4” X 2”

PIN 1 1/4” DIA.X 8 1/4’ LONG OVERALL

RESTRICTING ADAPTER 3/8”MPT-3/8”FPT

90 DEG. ELBOW ½” MORB-1/2” MJIC

HYDRAULIC CYLINDER 4” X 32”

HYDRAULIC HOSE1/2” 156”

HYDRAULIC HOSE 1/2” X 155”

TRANSPORT LOCK PIN 1/2” X 5” USABLE

TRANSPORT LOCK 11 1/2” LONG

HYDRAULIC CYLINDER 5” X 12”

90 DEG. ELBOW 3/4” MORB-1/2”MJIC

STRAIGHT ADAPTER 3/4” MORB-1/2” MJIC

HYDRAULIC HOSE 1/2” X 46”

HYDRAULIC HOSE 1/2” X 33”

TEE 1/2” MJIC ALL LEGS

HYDRAULIC HOSE 1/2” X 234”

HYDRAULIC HOSE 1/2” X 200”

CROSS OVER RELIEF VALVE 1750 PSI

HEX BOLT 5/16” X 2 1/2” GR. 5

LOCK WASHER 5/16”

STRAIGHT ADAPTER 1/2” MPT-1/2”MJIC

HOSE CLAMP 4 1/2” INSIDE

HEX NUT 3/8”

LOCK WASHER 1/2”

# 5RP3030757 HYDRAULIC GROUP ASSEMBLY MODEL OD1320

TRANSPORT LOCK PIN 1/2” X 2 1/2”

TRANSPORT LOCK 6” OVERALL

HYDRAULIC CYLINDER 3” X 6”

STRAIGHT ADAPTER 3/8”MPT- 1/2” MJIC

REDUCER 1/2”- 1/4” MJIC

HYDRAULIC HOSE 1/2” X 72

TUBE NUT 1/2” FJIC

HYDRAULIC HOSE 1/2” X 130”

HYDRAULIC HOSE 1/4” X 18”

TEE 1/2”” FJIC- 1/2” MJIC- 1/2” MJIC

90 DEG. ELBOW 1/2” MPT- 1/2” MJIC

PRESSURE LOCKING VALVE

HYDRAULIC HOSE ½” X 38”

HEX BOLT 3/8” X 3” GR. 5

HEX BOLT 1/2” X 1 1/4” GR.5

STRAIGHT PIPE ADAPTER 1/2”MPT- 3/4”MPT

PIN 1 3/4” DIA.X 7 1/4” INSIDE HEAD

DIVIRTER

STRAIGHT ADAPTER 3/4” MPT-1/2” FJIC

90 DEG. ELBOW 1/2” MJIC-1/2” FJIC

HEX BOLT 3/8” X 1” GR. 5

LOCK WASHER 3/8”

HOSE CLAMP 3 1/8” INSIDE

HOSE MAST

HYDRAULIC HOSE 1/2” X 216”

QUICK COUPLER MALE

PART NAME

Assembly

3

4

2

1

2

1

1

1

2

2

2

2

2

1

1

2

1

1

1

2

2

4

6

2

2

QTY.

Assembly

ATTACHMENT ASSEMBLY GENERAL

CAUTION: Wear protective clothing and safety equipment appropriate to the job. Work safely to avoid injury and observe all safety messages.

Read all assembly instructions and carefully observe illustrations.

INSTALL SAFETY CHAIN Attach safety chain to disk by pinning shackle through hole bracket on left front side of drawbar assembly. Secure with the shackle pin and cotter pin.

BEARING WEAR PLATES The heavy duty bearing wear plates come from the factory already installed on the bearing assemblies. If it becomes necessary to replace a wear plate, follow these instructions: Remove the mounting bolts from the bearing assembly, and place the bolt heads into the slots of the wear plate. Now, insert the mounting bolts through the bearings and secure to gang carrier bearing standards with the hex jam nuts and hex nuts provided.

76

in

Assembly INSTALL WARNING LIGHTS Refer to Light Group Assembly shown in Repair Parts List Manual (Part #5RPMAN297P) for specific parts details.

1. Attach light brackets to the ends of the rear gang carrier.

2. Attach the lights to the brackets so that the red lens faces rearward with the amber to the top, visible from both front and rear.

3. Connect the wishbone harness marked left and right to each of the lights.

4. Route the wishbone harness around the frame. The wire clamps will share the bolt used on the hydraulic hose clamps in some places. Once installed make sure to tighten all hose clamps.

Important: Insure that appropriate hoses are left slack as outlined in STEP E and STEP F of the INSTALL HYDRAULIC CONTROL GROUP assembly instructions.

5. Secure the wishbone harness with the clamps provided in the light group assembly.

6. Attach the straight harness to the wishbone harness.

7. Secure the straight harness to the drawbar with a clamp.

8. Store the excess length and the plug in the hose mast.

Note: Refer to the illustration on the following page.

77

Assembly

REF PART NO. NO.

PART NAME

QTY.

1 2 3 4 5 6 7 8 9 10 11 12 13 14

STRAIGHT HARNESS WISHBONE HARNESS LIGHT BRACKET LH DUAL LAMP RH DUAL LAMP METAL WIRE CLAMP LOCK WASHER 3/8” HEX NUT 3/8” HEX BOLT 3/8” X 1 1/4” GR. 5 HEX BOLT 3/8” X 1” GR. 5 HEX BOLT 3/8” X 3/4” GR. 5 HEX NUT 1/4” LOCK WASHER 1/4” HEX BOLT 1/4” X 1 1/2”

1 1 2 1 1 12 12 2 2 8 2 8 8 8

5RP5005211 5RP5005212 5RP3029469 5RP5005210 5RP5005209 5RP5005396 5RPLW038 5RPNC038 5RP038125B5 5RP038100B5 5RP038075B5 5RPNC025 5RPLW025 5RP025150B5

5RP3029470 Light Group Assembly Model DH4420

78

Assembly

MANUALS (OPERATOR’S & PARTS) If additional manuals are needed for the Frontier DH4420 Offset Disk Harrow, they can be ordered from your Frontier dealer.

Description ASSEMBLY & OPERATING MANUAL REPAIR PARTS LIST MANUAL -

Part No. 5RPMAN297AO 5RPMAN297P

79

Specifications SPECIFICATIONS SUGGESTED REPAIR PARTS (DH4420) PART NO.

PART NAME

5RPRR190B

CLEVIS

1

5RPRH91C 5RPRH90A

PLUNGER PLUNGER COLLAR

1 1

5RPSP100400

PIN

1

5RP7A605

TIMKEN BEARING (COMPLETE)

1

5RP2A661

HOUSING

1

5RP2A662

CAP

1

5RP2A801

BEARING CONE

1

5RP2A811

BEARING CUP

1

5RP3A69A

SEAL

2

5RP3A6700

SLEEVE

1

5RP2A82

SHIM SET

1

5RP6AH2AXC

AXLE

2

5RP6AH1AXC

AXLE

1

5RP4N200

AXLE NUT

2

5RPNL225

AXLE NUT LOCK

2

5RP4A64B

AXLE WASHER

1

5RP4A60C

BUMPER WASHER

1

5RP3027033

HUB (COMPLETE)

2

5RP5005262

HUB WITH CUPS AND STUDS

1

5RP5004999

OUTER BEARING CONE

1

5RP5005002

INNER BEARING CONE

1

5RP5005001

SEAL

1

5RP5005000

DUST CAP

1

5RP3031270

SPACER

2

5RP3031879

FRONT SCRAPER (COMPLETE)

14

5RP3031880

REAR SCRAPER (COMPLETE)

14

5RP3000360

32” X 3/8” DISK BLADES (NOTCHED)

32

5RP5002945

PACKING KIT (4” X 32”)

1

5RPHPK1716

PACKING KIT (5” X 12”)

1

5RPHP1562

PACKING KIT (3” X 6”)

1

80

QTY.

Specifications SPECIFICATIONS - CONSTRUCTION OFFSET DISK MODEL DH4420 FEATURES: Patented Hinge Wheel Offset Harrow built rugged and designed to meet today’s high residue needs.

The DH4420 harrow combines the uniform leveling and excellent mixing and aerating capabilities of the hinge harrow with the transportability of the wheel harrow.

“On the go” hydraulic angle control with adjustments from 0° to 45° allow the operator to quickly choose the optimum plowing angle to best suit current soil conditions.

Wide 17 3/4” (451mm) disk spacing encourages less clogging, provides superior soil and residue control, reduced drawbar pull and maximum penetration.

Reliable heavy duty Timken tapered roller bearings equipped with greaseable cast housings.

Frontier Model

DH4420I

Working Width (ft./in.)

20' Transport Width (ft./in.)

22' 3" Disk Blade Size (dia.x thickness) 32"x .375" (3/8") Disk Blade Spacing (in.)

17 3/4" Total Machine Weight (lbs.)

16400 Number of Disk Blades 29 Weight per Disk Blade (lbs.)

566 Maximum Penetration Depth (in.)

11" Gang Bearings (Dual Tapered Roller) Greaseable Combined Gang Angle 0° - 45° Gang Bolt Diameter (in.) (Round) 2 1/8" Disk Scraper Adjustable Tires 12.5x16 - 12 ply Duals Recommended Horsepower (PTO)* 309 - 424

STANDARD EQUIPMENT 32” (813mm) diameter, 3/8” (10mm) thick, cutout (notched), shallow concavity disk blades.

Adjustable disk blade scrapers.

Tongue Jack.

Furrow Filler Disk.

Two heavy-duty Gang Wrenches.

Extra heavy-duty bearing wear plates with hard-plate overlay.

New Industrial Tires.

Light Group.

Hydraulic control group includes hydraulic cylinders, hose holder and hoses with fittings and quick couplers to reach rear of tractor.

*Power Take Off Horsepower (PTO-HP) - The amount of horsepower, measured at the PTO respectively, required to move an implement through the soil. Note: HP range provided is an estimate. Power requirements will vary due to key operational conditions such as: soil type, field speed, soil moisture level, penetration depth and others.

81

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