MANUAL NO. 107176 REV. 04 (03/24/03)

Operators Manual Models:PR18B5FAPR18B5NRAPR18GH5NRAPR18H5DAPR18H5FAPR18H5NRAPR18NEFAPR22B5FAPR22B5NRAPR22B8FA

PR22B8NRAPR22GH5NRAPR22H5FAPR22H5NRAPR22NEFAPR22B5FBAPR22H5FBAS22B5DAS22H5DA

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TABLE OF CONTENTS

Operating Instructions forLawn Dethatcher

with supplement for accessories

Introduction .................................................. 3Congratulations .........................................3Use ............................................................3Insure your machine ..................................3Good service .............................................3Serial number ............................................3

Symbols and decals.....................................4Decals and machine-bound instructions ...4Location of decals .....................................5Translation of instructions .........................6

Safety instructions .......................................7General use ...............................................7Preparations ..............................................8Operating ...................................................9Movement/Transport .................................9Storage ......................................................9Children ...................................................10 Fuel system ............................................10Maintenance ............................................11

Presentation ...............................................12Presentation ............................................12

Controls ......................................................13Main components and operating

instruments ...........................................13Engine .....................................................14Cutting unit ..............................................14Blade versatility .......................................15Setting blade height .................................15

Maintenance ...............................................17Maintenance schedule ............................17Cutting unit ..............................................18Two minute rule .......................................22Cleaning and washing .............................22

Lubrication..................................................23Lubrication schedule................................23General ....................................................23Blades......................................................24Handle .....................................................24

Troubleshooting .........................................25Storage ........................................................26

Winter storage .........................................26Service.....................................................26

Assembly instructions ..............................27Assembly – delivery service ....................27

Service journal ...........................................28

Operation ....................................................16Before you start .......................................16Starting ....................................................16Finishing ..................................................16

©2003 BlueBird International. All Rights Reserved.Beatrice, NE. Printed U.S.A.

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INTRODUCTIONCongratulationsThank you for purchasing a BlueBird lawn care product. Through your confidence in us, you havechosen an exceptionally high quality product.

This manual is a valuable document. It describes your new BlueBird machine. Read the manualcarefully before attempting to use the machine. Following the instructions (use, service, maintenance,etc.) can considerably increase the lifespan of your machine and even increase its resale value.Please contact your dealer for more information.

If you sell your BlueBird machine, make sure to give the operator’s manual to the new owner.

UseThe dethatcher is used to remove the layer of thatch and surface-treat lawns, i.e. power-raking, de-mossing and collecting thatch in the form of old grass or moss. With an attachment, it can also beused for seeding, both in initial sowing or overseeding.

Insure your machineContact your insurance company to check on insurance coverage for your new machine. You shouldhave all-inclusive insurance for liability, fire, damage and theft.

Good service Before the machine was delivered it underwent inspection and was adjusted by your dealer. Whenyou need spare parts or support in service questions, warranty issues, etc., please consult the followingprofessional:

Serial numberThe machine’s serial number can be found on the printed plate attached to the rear side panel of themachine. The plate includes the following information:

• The machine’s type designation (MODEL).

• The machine’s serial number (S/N).

Please state the type designation and serial number when ordering spare parts.

The engine’s serial number is printed on the engine.

The engine type is specified on the crankcase under the air filter but also appears on the decal on thestarter.

Please state engine serial number and type when ordering replacement engine parts.

This Operator’s Manual belongs to machinewith serial number:

Enginenumber:

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WARNING!Xxxx xxx xxxx xx xxxx x xxxx.

SYMBOLS AND DECALS

Used in this publication to notify the reader of arisk of personal injury, particularly if the readerDOES NOT follow the instructions given in themanual.

IMPORTANT INFORMATION Xxxx xxx xxxx xx xxxx x xxxx.

Used in this publication to notify the reader of arisk of material damage, particularly if the readerDOES NOT follow the instructions given in themanual. Used also when there is a potential formisuse or misassembly.

Decals and machine-bound instructions

1. BlueBird logo

2. Model designation PR18

3. Model designation PR22

4. Height setting

5. Seeder Dial

6. DANGER watch your feet

7. Seed application chart

8. Warning for carbon monoxide

9. Open/Close (Seedbox)

10. Caution graphics

11. Warning for bagger

12. Handle folding instructions

13. BlueBird logo

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456

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910

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SYMBOLS AND DECALSLocation of decals

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2,

4

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1. BlueBird logo

2. Model designation PR18

3. Model designation PR22

4. Height setting

5. Seeder Dial

6. DANGER watch your feet

7. Seed application chart

8. Warning for carbon monoxide

9. Open/Close (Seedbox)

10. Caution graphics

11. Warning for bagger

12. Handle folding instructions

13. BlueBird logo

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SYMBOLS AND DECALS

Decal 10Important informationRead and make sure you understand the Operator’sManual before use or maintenance.

To obtain a replacement manual, please contactyour dealer.

Observe all safety instructions; otherwise you mayinjure yourself or others around you.

Make sure that the machine is in serviceablecondition prior to use.

Make sure that all protective devices are in placewhen the machine is in use.

Stop the engine and wait until all machinemovement comes to a standstill before service,adjustment or cleaning.

Do not run the engine in poorly ventilated spaces.

Make sure nobody is in the vicinity of the machinebefore starting and during use.

Avoid slopes that are too steep to use the machinesafely.

Clear any debris from the lawn prior to use.

Decal 8WarningEngine exhaust, some of its constituents and certainvehicle components contain or emit chemicalsconsidered by the State of California to causecancer, birth defects or other reproductive harm.The engine emits carbon monoxide, which is acolorless, poisonous gas. Do not use the machinein enclosed spaces.

Translation of instructions

Decal 7Seed application chartValues are approximate; quantities of seed dependon the speed at which the machine is run. Fasterrunning speed results in sparser sowing.

Preparing the lawn• Cut the grass to approximately 1-1.5 cm (1/2")

lower than you normally would.

• Do not water before sowing.

• Remove the layer of old grass cuttings (thatch).

• Aerate the lawn with a ground aerator of thecoring type.

• Fertilize the lawn.

Seed application recommendations• For best results, sow in two directions with a

45° angle between.

• Water generously immediately afterward andcontinue watering moderately for 10–14 daysto keep the soil moist.

• After germination, water sporadically toencourage root growth.

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SAFETY INSTRUCTIONS

WARNING!Under no circumstances may the originaldesign of the machine be modifiedwithout written approval from themanufacturer. Such modifications notonly affect the performance anddurability of the machine but may evenpose a safety risk for users and those inthe vicinity. Unauthorized modificationsto the design of the machine may absolvethe manufacturer from liability for anyresulting personal injury or propertydamage. Modifying the machine withoutwritten approval from the manufacturermay void the guarantee.

General useThe object of this manual is to help you use yourBlueBird machine safely and to give youinformation about how to maintain your machine.Please read the manual carefully before attemptingto use the machine.

If after reading the operator’s manual you are stillunsure about the safety risks associated with useof the machine, you should not use the machine.Please contact your dealer for more information.

These safety instructions only address the basicsfor safe use. It would be impossible in the safetyinstructions to describe all possible risk situationsthat could arise when using the machine. You can,however, prevent accidents by always usingcommon sense.

To obtain extra copies of the operator’s manual,please contact your dealer.

• Read this manual carefully and make sure youunderstand it before using the machine orperforming any maintenance. If the user cannotread this manual, it is the responsibility of themachine owner to explain the contents to theuser.

• Follow all safety instructions. Failure to do somay result in injury to yourself or others.

• Accident prevention regulations, other generalsafety regulations, occupational safety rulesand traffic regulations must be followed withoutfail.

• All users shall be trained in use of the machine.The owner is responsible for training users.

• Engage an authorized BlueBird workshop forall service and repairs not described in thismanual.

IMPORTANT INFORMATIONDo not use the machine until you have readthe operator’s manual carefully andunderstand the instructions given. Allmaintenance work or adjustments notdescribed in this manual must beperformed by an authorized BlueBirdservice workshop.

• BlueBird original spare parts are designed andspecified to maintain high quality and correctfit for optimal durability and lifespan. From asafety point of view, you should only useBlueBird original spare parts.

• Check that all safety decals are in place. Seethe chapter ”Symbols and Decals”.

• Learn how to use the machine and its controlssafely and learn to recognize the safety decals.

• Only use the machine for sowing anddethatching lawns. It is not intended for anyother use.

• Check that the machine is in serviceablecondition prior to use; see the chapter”Maintenance/Maintenance schedule”.

• Only use the machine in daylight or in otherwell-lit conditions. Keep the machine a safedistance from holes or other irregularities in theground. Pay attention to other possible risks.

• Only allow the machine to be used by adultswho are familiar with its use.

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• Make sure nobody else is in the vicinity of themachine when you start the engine, engagethe drive or run the machine.

• Make sure animals and people maintain a safedistance from the machine.

• Clear the area of objects such as stones, toys,steel wire, etc. that could become caught inmoving machine parts and thrown out.

• Find and locate all fixed objects in the ground,such as sprinkler systems, poles, water valves,bases for washing lines, etc. Be certain to checkfor hidden electrical cables or similar in thesurface of the lawn. Always run the machinearound these objects. Never intentionally runthe machine over foreign objects.

• Make sure all guard plates and protectiveshields are in place and intact when using themachine.

• Makes sure no clothing, long hair or jewelrycan catch in moving machine parts.

• Never use the machine when barefoot. Alwayswear protective shoes or protective boots withanti-slip and preferably with steel toes.

• Wear approved ear-protection when runningthe machine. Ask your dealer about approvedear-protection.

SAFETY INSTRUCTIONS

• Never allow children or persons not trained inthe use of the machine to use or service it. Locallaws may regulate the age of the user.

• People and animals can distract you causingyou to lose control of the machine. For thisreason, you should always concentrate andfocus on the task at hand.

• Never leave the machine unsupervised with theengine running.

• Make sure that other people are nearby whenyou are using the machine so that you can callfor help should an emergency arise.

• The machine is tested and approved only withthe equipment originally provided orrecommended by the manufacturer.

Overexposure to vibration may lead tocirculatory or nerve damage, particularlyin people who have impaired circulation.Contact your doctor if you experiencesymptoms that could have been causedby overexposure to vibration. Examplesof common symptoms includenumbness, pain, muscle weakness,change of skin color or anuncomfortable feeling of tingling. Thesesymptoms appear most frequently in thefingers, hands or wrists.

WARNING!The engine can become very hot. Toavoid being burned, you must turn off theengine and wait until all parts have cooledbefore touching the engine.

WARNING!

Preparations• Make sure that you always have first aid

equipment at hand when using the machine.

Always use approved protective clothingand approved protective equipment whenusing the machine. Protective clothing andprotective equipment cannot eliminate therisk of accidents, but wearing properclothing and the correct equipment willreduce the degree of injury should anaccident occur. Ask your dealer aboutapproved protective clothing and approvedprotective equipment recommended byBlueBird.

WARNING!

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Operating• Do not use the machine on grades of more

than 20°. We recommend working acrossslopes rather than up and down. This will yielda more even result. Do not leave the machinestanding on a slope unattended.

• Do not use the machine if you are tired, if youhave consumed alcohol, or if you are takingother drugs or medication that can affect yourvision, judgment or co-ordination.

• Never use the machine indoors or in spaceslacking proper ventilation.

• Do not use the machine on any surface otherthan grass.

• Make sure you have a proper foothold whenusing the machine, particularly when backing.Walk, don’t run. Never work on wet grass. Poortraction may cause you to slip.

• Keep your hands and feet away from movingparts.

• Keep your hands and feet away from the worktools.

• Slow down and be especially careful on slopes.Make sure to run the machine in therecommended direction on slopes. Be carefulwhen working close to sudden changes in level.

• Smoking, open flames or sparks in the vicinityof the machine are strictly forbidden. Gasolineis extremely flammable and carelessness inhandling can result in personal injury or fire.

• Stop and inspect the equipment if you run overor into anything. If necessary, make repairsbefore beginning again.

• Whatever happens, you should always park themachine on even ground, disengage the drive,turn off the engine and wait until all moving partshave stopped before leaving the operatingposition behind the machine.

SAFETY INSTRUCTIONS

WARNING!Engine exhaust, some of its constituentsand certain vehicle components containor emit chemicals considered to causecancer, birth defects or otherreproductive harm. The engine emitscarbon monoxide, which is a colorless,poisonous gas. Do not use the machinein enclosed spaces.

Movement/Transport• To turn and steer the machine, press down on

the handle and turn on the back wheels.

• Turn off the engine and allow it to cool at least2 minutes before transport.

• Collapse the handle if the machine is equippedwith a collapsible handle.

• Be careful and use safe lifting and movingtechniques when loading/unloading themachine.

• We recommend having two people to lift themachine.

• Fasten the machine properly in place withapproved fasteners, such as tension belts,chains or rope. Always check that you are incompliance with applicable traffic regulationsbefore transporting the machine.

Storage• Allow the engine to cool before storing the

machine. Never store the machine near a openflame.

• Store the machine with the fuel valve closed.

• Store the machine and fuel in such a way thatthere is no risk that leaking fuel or fumes cancome in contact with flames or sparks fromelectrical machines, electric engines, relays,switches, boilers or similar.

• Store the machine in a locked space away fromchildren and adults untrained in use of themachine.

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Fuel system

Close the fuel valve.

• Only store fuel in containers approved for thatpurpose.

• Never remove the fuel cap and fill the fuel tankwhen the engine is running.

• Always stop the engine when refueling.

• Do not smoke when filling the gasoline tankand do not pour gasoline in the vicinity of sparksor open flame.

• Never fill the fuel tank indoors.

WARNING!Gasoline and gasoline fumes arepoisonous and extremely flammable. Beespecially careful when handlinggasoline, as carelessness can result inpersonal injury or fire.

• Before starting the machine after refueling, itshould be moved at least 10 feet (3 M) fromthe location where it was filled.

• Turn off the fuel supply for storage or transport.

• If leaks arise in the fuel system, the engine mustnot be started until the problem has beenresolved.

• Check the fuel level before each use and leavespace for the fuel to expand, because the heatfrom the engine and the sun can otherwisecause the fuel to expand and overflow.

• Avoid overfilling. If you spill gasoline on themachine, wipe up the spill and wait until it hasevaporated before starting the engine. If youspill gasoline on your clothing, change yourclothing.

8011-036

SAFETY INSTRUCTIONS

ChildrenSerious accidents can occur if you fail to be onguard for children in the vicinity of the machine.Never assume that children will stay put where youlast saw them.

• Keep children away from the machine.

• Keep children away from the work area andunder close supervision by another adult.

• Keep an eye out and shut off the machine ifchildren enter the work area.

• Never allow children to operate the machine.

• Be particularly careful near corners, bushes,trees or other objects that block your view.

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SAFETY INSTRUCTIONS

Disconnect the spark plug cable before repair work.

Maintenance• Never make adjustments with the engine

running.

• Disengage the drive units, shut off the engineand wait until all moving parts come to acomplete stop before making adjustments,performing maintenance or cleaning themachine.

• Disconnect the spark plug cable beforebeginning repair work.

• Keep all components in serviceable conditionand make sure all nuts, bolts, etc. are tight.Replace worn or damaged decals.

• Be careful when checking work tools. Usegloves when performing maintenance work.

• Never allow persons not trained in the use ofthe machine to perform service on it.

• Always park the machine on even groundbefore performing maintenance or makingadjustments.

• Do not disassemble the engine. This caninvalidate your engine warranty. Contact yourdealer if you have any questions regardingservice or guarantee matters. Follow allmaintenance instructions.

• Do not change the setting of governors andavoid running the engine with overly high RPM.If you run the engine too fast, you risk damagingthe machine components.

• Do not modify safety equipment. Checkregularly to be sure it works properly. Themachine must not be run with defective ordisassembled safety equipment.

• The muffler is designed to maintain soundlevels at an approved level and keep directexhaust away from the user. Exhaust gasesfrom the engine are extremely hot and maycontain sparks that can cause fires or burn theuser.

• Never use a machine with a defective muffler.

• Reduce the risk of fire by removing grass,leaves and other debris that may have caughtin the machine.

WARNING!Wait until all moving parts are completelystill before performing maintenance onthe machine.

Turn off the engine and remove the sparkplug cable.

8011-027

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PRESENTATION

PresentationCongratulations on your choice of an exceptionallyhigh quality product. This operator’s manualdescribes the BlueBird dethatcher. The machine isavailable in two basic designs 18" and 22" widths.

The machine is equipped with a 5.5 hp Honda, 5.5hp or 8 hp Briggs & Stratton, four-cycle engine.

The 22 " dethatcher can be equipped with a catcher.It is available as an accessory at your BlueBirddealer. It can be mounted after purchase.

Alternatively, the 22" dethatcher can be equippedwith a seeder. It is available as an accessory atyour BlueBird dealer. It can be mounted afterpurchase.

It is not possible to use a catcher and seedersimultaneously.

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CONTROLS

Main components and operating instruments

1. Engine

2. Depth lever

3. Knob for collapsible handle

4. Clutch bail

5. Handle

6. Shaft guard

7. Belt shield

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Cutting unitDepth leverUse the depth lever to raise and lower the bladesbetween working and transport position. The depthlever has a lock-out bolt that should be left in till theblades wear down. Then move the bolt to anotherhole to allow the blades to penetrate the soil to adepth of 1/8" to 1/4" with a maximum penetrationof a 1/2”. Check your seed bag for themanufacture’s recommended depth of application.

ClutchThe clutch tightens the drive belt and engages thedrive for the blades. When the clutch lever ispressed against the handle, the blades begin torotate. Hold the clutch tightly when working so thatthe belt does not slip.

CONTROLS

DEPTH LEVER

CLUTCH LEVER

EngineRefer to your engine manual.

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Blade versatilityFlail bladeThatch is the dense layer of clippings, roots andstems that forms between the soil and the base ofthe grass. As thatch builds up, it prevents water,air and fertilizer from being absorbed into the soil.This causes shallow root development leading tovulnerability to drought and frost. Excessive thatchalso creates an ideal environment for insects andlawn diseases. Power-raking with flail bladesremoves this thatch layer and restores your lawnto good health. Flail blades offer the mostaggressive dethatching of all the blades offered.

Delta bladeDelta blades were created primarily for overseedingexisting lawn. They effectively incorporate grassseed into the soil. This is an easy, reliable methodfor rejuvenating poor lawns. The delta blade is alsouseful as a vertical mower for cutting running stemgrasses and opening up the soil to oxygen, water,nutrients and other chemicals. Delta blades are alsobeneficial on slopes, terraces and in high claycontent soils where water runoff is a problem. Theblades should be set to penetrate the soil to a depthof 1/8" to 1/4" with a maximum penetration of 1/2".

Spring tineIdeal for the established lawn that is not in need ofa complete renovation but requires dethatching(dry-spots, fungus, etc.). Spring tines are designedto pluck dead grass and thatch out of the lawnwithout tearing or damaging existing root structure.With the flexible tines, the lawn is combed only 0.5cm into the soil, so it cannot penetrate the rootstructure. Spring tines provide less aggressivedethatching than flail blades.

Setting blade heightThe blades are raised and lowered using a depthlever on the right side of the machine. Push in andmove lever to the correct height. Higher numbersincrease the blade depth.

CONTROLS

DEPTH LEVER

Check your seed bag for the manufacture’srecommended depth of application.

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IMPORTANT INFORMATIONClear the lawn of any debris.Clearly mark rocks and other fixed objects.Be especially sure to check for hiddenelectrical cables or similar in the surfaceof the lawn.

OPERATIONBefore you start• Mow the lawn 1/2" shorter than normal.

• Allow the lawn to dry. Wet conditions can causeextensive damage to healthy grass.

FLAIL BLADES OR SPRING TINES:• Flail Blades or Spring Tines: Set blade or

tine depth so that the blades or tines just touchon a flat surface such as a sidewalk or driveway.

• Delta Blades: Set blades to penetrate the soilto a depth of 1/8" to 1/4" with a maximumpenetration of 1/2". Check your seed bag forthe manufacture’s recommended depth ofapplication

• Lawns with deep thatch exceeding 3/4" maybe best dethatched in two treatments (springand fall) to avoid major shock to an older lawn.

• To engage the clutch in heavy thatch, beardown on the handle and raise the front wheelsslightly. Hold the clutch engaged against thehandle and carefully lower the machine into theturf.

• Do a small test area at a slow walking pace.• If the engine speed drops excessively, the

depth setting is too deep.

• If the machine pulls forward and bucks roughly,the depth setting is too deep. Check for stonesor fixed objects in the lawn.

Finishing• Remove all extracted thatch from the grass and

compost/dispose of properly.

• Other methods for improving your lawn mayinclude aeration and fertilization.

DEPTH LEVER

• Set the depth lever in working position.

Starting

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Check the engine oil levelReplace engine oil 1)

Check the air filterClean the air filter 2)

Replace air filter cartridge 2)

Clean sludge reservoir for fuel systemCheck and clean the spark plugReplace the spark plugCheck idle speedCheck and adjust play in valves 4)

Clean fuel tank 4)

Check, replace fuel lines as necessary 4, 5)

Check clutch and clutch cableCheck flail blade lock washersCheck decals and warning signsCheck the seed holes for the seederCheck wear and tension on the beltsCheck blade wear and conditionCheck the chassis, bolts and set screwsCheck the seed control lever for the seederCheck the wire mountings on the seederLubrication; see the Lubrication schedule

MAINTENANCE

3/50 6/1001/25Maintenance

Dailymaint.before

starting

Maintenance interval months/hours

WARNING!No service operations may be performed on the engine or unit unless:• The engine is stopped.• The ignition cable has been removed from the spark plug.• The machine is securely parked where it will not tip or begin rolling.

= Described in this manual. = Not described in this manual.

1) First change after 20 hours. 2) In dusty conditions maintenance is required at shorter intervals. 3) With daily use, the machine shall belubricated twice weekly. 4) Performed by authorized service workshop. 5) Performed every second year.

12/300

Maintenance scheduleThe following is a list of maintenance procedures that must be performed on the machine. For thosepoints not described in this manual, visit an authorized service workshop.

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MAINTENANCECutting unitChecking the drive belt1. Allow the engine to cool.

2. Remove the spark plug cable.

3. Remove the belt guard (see illustration) on theleft side of the machine.

4. Check that the belt is running in the propertrack; the pulleys should guide the belt in astraight line.

5. Check that the belt and pulleys are not oily. Ifthey are, first try to clean them with spirits. Ifthey are heavily coated, take the machine toan authorized service workshop to fix the oilleakage and replace the belt.

6. Check the belt for cracks, heat damage or wornedges. If these symptoms appear, replace thedrive belt; see ”Replacing the drive belt”.

7. Check that guide and tensioning equipment forthe belt is not loose and is properly set; see”Replacing the drive belt”.

8. Refit the belt guard.

Replacing the drive beltReplace the drive belt as follows:

1. Allow the engine to cool.

2. Remove the spark plug cable.

3. Remove the belt guard.

4. Loosen the belt guides.

5. Remove the old belt.

6. Check for wear on the pulleys and replace asnecessary.

7. Check the engine pulley alignment to the rotorpulley and adjust as necessary. The belt shouldrun straight.

8. Fit a new belt by first pulling it over the lowerpulley and then the engine pulley. Check thatthe tensioning pulley and belt guides end upoutside the belt loop.

9. Tighten belt guides and refit the belt guard.

8011-027

BELT COVER

DRIVE BELT

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MAINTENANCEWear/Rotation/Replacing flail bladesAfter you have used your dethatcher for some time,the blades will begin to wear on the striking edge.When this happens, their dethatching performancewill diminish. A new combing edge may be obtainedby rotating the entire rotor shaft assembly laterally(end to end). This procedure can be repeated untilthe blades reach their wear limit; see illustration.

Rotate the rotor shaft as follows:

A. New blade

B. Worn blade

C. After rotation

3. Remove the belt guard (see illustration).

4. Remove the belt guard and pulley from the rotorshaft (see illustration).

5. Remove the 6 bearing bolts and allow the rotorshaft to slide out.

6. Check the shaft, bearing, blade length, bladee-rings and spacers.

7. Rotate the shaft end for end.

8. Refit the bearing bolts.

9. Refit the pulley and check that it is aligned withtop pulley.

10. Refit the drive belt.

11. Check the pulley alignment to the engine shaftpulley. The drive belt should run smoothly inits track. Adjust as necessary. Tighten thepulleys.

12. Refit the belt guard.

13. Reattach the spark plug cable.

Rotating the rotor shaft1. Allow the engine to cool.

2. Disconnect the spark plug.

IMPORTANT INFORMATIONOnly the flail blade rotor shaft can be rotatedto achieve even wear. The spring tines anddelta blades must be operated in the correctdirection.

8011-006

8011-027

BELT COVER

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MAINTENANCEReplacing worn flail blades1. Allow the engine to cool.

2. Disconnect the spark plug.

3. Tip the machine forward; see the section ”Twominute rule”.

4. Remove e-rings (1) (locking washer type) thathold the blade shaft (2) in place (see theillustration).

5. Inspect the blade shafts and replace if bent orworn.

6. Drive the blade shafts out towards the center.The blades (4) and the plastic spacers (3) willfall off.

7. Fit the new blades and replace the plasticspacers as necessary. Refer to the illustrationof the components for blade/spacer placement.

8. Install e-rings.

9. Repeat this procedure for the remaining threeshafts.

10. Reattach the spark plug cable.

IMPORTANT INFORMATIONWhen tipping the machine forward observethe ”Two minute rule”.

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Wear/Replacing spring tinesOver time and due to wear, the tines will diminishin length. When the tines can no longer be adjustedto comb 6 mm (1/4") into the soil, the tines must bereplaced.

MAINTENANCEWear/Replacing delta bladesOver time and due to wear, the blades will diminish inlength. Once the blades have worn down by about19 mm (3/4"), the overall length of the blade at thelongest point of the blade will be about 64 mm (2 1/2"), and it will be necessary to replace the blades.

It is possible to replace delta blades without

removing the rotor shaft. Remove the delta bladeby removing the two screws with nuts holding theblade in place.

Turn the new blade until it is properly aligned; seeillustration.

Delta BladeScrews

Nuts

SpringTine

Screw

Spring tines can be replaced without removing therotor shaft by using a 1/2" socket wrench. Remove

the screw and replace the spring tine using thewrench.

Washers

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MAINTENANCE

Two minute ruleThe machine may be tipped forward to facilitateaccess for cleaning or service, but no longer than2 minutes.

If the machine is held in this position for too long,the engine can be damaged by gasoline draininginto the crankcase. Should this happen, performan extra oil change on the engine. Remove thespark plug and turn the engine over a fewrevolutions with the starter handle before startingthe engine again.

Cleaning and washingRegular cleaning and washing will increase themachine’s lifespan. Make it a habit to clean themachine directly after use, before the dirt sticks.

Check before rinsing that the fuel tank lid is properlyin place to avoid getting water in the tank.

Use caution when using high-pressure spraybecause warning decals, instruction signs and theengine can be damaged. Do not exceed 70 bar/1000 PSI water pressure when cleaning.

Lubricate the machine after cleaning. This isparticularly important if the machine is to be stored.

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LUBRICATIONLubrication schedule

GeneralStop the engine and remove the ignition cable before attempting to lubricate the machine.

Wipe away excessive grease after lubrication.

It is important to avoid getting lubricant on the belt or the drive surfaces on the belt pulleys. Shouldthis happen, attempt to clean them with spirits. If the belt continues to slip after cleaning, it must bereplaced.

1. Check engine oil daily, change every six months or 100 hours.2. Check and lubricate wheel bearings once a month.3. Lubricate folding handle points once a week.4. Lubricate main shaft bearings once a week or every 40 hours.

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LUBRICATION

1. BladesCover the blades with a thin coat of oil to avoidrust. This is particularly important prior to winterstorage or if the machine will not be used for aperiod of longer than 30 days.

2. HandleLubricate the joints at both sides of the handle withan oil can.

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TROUBLESHOOTINGSymptom Cause ActionThe engine will not start

• User error Fuel valve closed. Open the fuel valve.

Choke valve open. Close the choke with coldengine.

Engine switch in OFF position. Turn the engine switch to ON.

• Fuel system Fuel tank empty. Fill with fuel.

Machine stored without Clean tank, sludge reservoir andobserving proper procedure empty carburetor.from chapter ”Storage/Winter Fill the tank with fresh fuel.storage”

Contamination, water or ice in Clean tank, sludge reservoir,fuel system. fuel lines and carburetor. Fill

the tank with fresh fuel.

Carburetor problems. Contact an authorized serviceworkshop.

• Spark plug Wrong spark plug type. Replace the spark plug.

Build-up on electrodes. Check electrode gap and clean orShort circuit. replace spark plug.

Gasoline or oil on the spark plug. Clean the spark plug. Air theengine out. Start with full throttle.

• No spark after Faulty engine switch, cable Contact an authorized service checking spark plug or ignition. workshop.

• Low compression Serious interior engine Contact an authorized servicedamage or faulty valves. workshop.

Engine is under powered or runs unevenly

• Air filter Clogged air filter. Clean or replace the air filter.

• Fuel system Machine stored without observ- Clean tank, sludge reservoir anding proper procedure from empty carburetor.chapter ”Storage/Winter storage” Fill the tank with fresh fuel.

(Blue exhaust) Tank filled with 2-cycle mixed oil. Fill the tank with proper fuel.

(Voluminous blue-white Tank filled with diesel. Clean tank, sludge reservoir exhaust) and empty carburetor.

Fill the tank with proper fuel.

(Black exhaust) Choke left on. Open choke valve.

Clogged air filter. Clean or replace the air filter.

Carburetor problems. Contact an authorized serviceworkshop.

• Ignition system Wrong spark plug type. Replace the spark plug.

Build-up on electrodes. Check electrode gap and clean orShort circuit. replace spark plug.

Faulty ignition unit. Contact an authorized serviceworkshop.

• Low compression Serious interior engine damage Contact an authorized service (possible blue exhaust) or faulty valve. workshop.

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STORAGETo ready the machine for storage, follow thesesteps:

1. Clean the machine carefully, particularly thechassis and working equipment. Mend damageto the paint to prevent rust.

2. Inspect the machine for worn or damaged partsand tighten any nuts or bolts that may havebecome loose.

3. Change the engine oil; dispose of properly.

4. Open the fuel valve. Empty the fuel tank (1)and the carburetor (2).

Winter storageAt the end of the season, the machine should bereadied for storage (or if it will not be in use forlonger than 30 days). Fuel allowed to stand for longperiods of time (30 days or more) can leave stickyresidues that can plug the carburetor and disruptengine function.

Fuel stabilizers are an acceptable option toreducing sticky residues during storage. If alkylategasoline (Aspen) is used, stabilizers areunnecessary because this fuel is stable. However,you should avoid switching between regular andalkylate gasoline as sensitive rubber componentscan harden. Add stabilizer to the fuel in the tank orin the storage container. Always use the mixingratios specified by the manufacturer of thestabilizer. Run the engine for at least 10 minutesafter adding the stabilizer so that it reaches thecarburetor. Do not empty the fuel tank and thecarburetor if you have added stabilizer.

WARNING!Never store an engine with fuel in thetank indoors or in poorly ventilatedspaces where fuel vapor can come incontact with open flame, sparks or apilot light such as in a boiler, hot watertank, clothing drier, etc.Handle the fuel with caution. It is veryflammable and careless use can causeserious damage to person andproperty. Drain the fuel into anapproved container outdoors and faraway from open flame. Never usegasoline for cleaning. Use a degreaserand warm water instead.

7. Lubricate all grease nipples, joints and shaftsas described in the chapter ”Lubrication/Lubrication schedule”.

8. Store the machine in a clean, dry place andcover it for extra protection.

5. Close the fuel valve.

6. Remove the spark plug and pour about atablespoon of engine oil in the cylinder. Turnover the engine so that the oil is evenlydistributed and then refit the spark plug.Put the engine in the compression phase wherethe triangle mark on the sleeve of the starter isaligned with the upper hole in the starter.Note: Compression phase occurs every secondrevolution.

ServiceWhen ordering spare parts, please specify thepurchase year, model, type, and serial number.

Always use genuine BlueBird spare parts.

An annual check-up at an authorized serviceworkshop is a good way to ensure that yourmachine performs its best the following season.

8011-048

8011-049

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1. Handle2. Oil refill engine3. Clutch cable4. Clutch bail

Assembly – delivery service1. Rotate the handle and tighten it in place.

2. Fill the engine with the manufacturer-recommended oil. See section ”Lubrication/Engine oil”.

3. Test the clutch. Make sure that the clutch expansion spring disengages 6.35 mm (1/4") easily.

4. The engine RPM is preset by the manufacturer. Idle speed is 1250–1400 RPM. Maximum engine

speed is 3600 RPM.

See the engine manual for instructions on adjusting the regulator and carburetor if the enginespeed is not within these limits.

ASSEMBLY INSTRUCTIONS

1

2

3

4

28

Action Date, stamp, signature

SERVICE JOURNAL

Delivery service1. Break the packaging and make sure the machine has not been

damaged in transport.

2. Where applicable, assembly accompanying components.

3. Check that the machine design corresponds to thecustomer order.

4. Check that the right amount of oil is in the engine andtransmission.

5. Check that the working equipment is properly set.

6. Check that the drive pulleys are aligned.

7. Check that belts are properly adjusted.

8. Lubricate the machine as described in the lubrication schedule.

9. Fill the fuel tank and start the engine.

10. Check all operating instruments.

11. Check decals and information attached to the unit.

12. Check the engine speed (RPM), see Technical Data.

13. Check for leakage.

14. Inform the customer about:

The need and advantages of following the service schedule.

The need and advantages of leaving the machine for serviceevery 300 hours.

The effects of service and maintaining a service journal on themachine’s resale value.

15. Fill in the sales papers, etc.

Delivery service has been carriedout.

No remaining notes.

Certified:

After the first 20 hours1. Change engine oil.

2. Check that belts are properly adjusted.

3. Tighten screws and nuts.

29

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SERVICE JOURNALAction Date, stamp, signature

P.O. Box 8Beatrice, Nebraska 68310