MTD 24A464G799 Owner’s Manual

Operator's Manual

I:Rl FI'SlVl N

1450 Series Engine

Chipper Shredder

Model No. 247.77638

For questions, call 1-800-4-MY-HOME

Before using this equipment, read this manual and follow

all safety rules and operating

instructions.

Sears Brands Management Corporation, Hoffman Estates, iL 60179 U.S.A.

Visit our website: www.craftsman.com

* SAFETY * ASSEMBLY * OPERATION * MAINTENANCE * PARTS LIST

* ESPANOL

FORMNO.769-05040A

5/24/2010

Warranty Statement .................................. Pac

Safe Operation Practices .......................... Pac

Safety Labels ............................................ Pac

Assembly .................................................. Pac

Operation .................................................. Pac

Service and Maintenance ......................... Pac

Off-Season Storage .................................. Pac

e2 es 3-6 e7 es 8-11 es 12-13 es 14-17 e18

Trouble Shooting ....................................... Page 19

Parts List ................................................... Page 20-30

Label Map ................................................. Page 31

Repair Protection Agreement ................... Page 34

Espa_ol ..................................................... Page 35

Service Numbers ...................................... Back Cover

CRAFTSMAN FULLWARRANTY

Whenoperatedand maintainedaccordingtoallsuppliedinstructions,ifthischippershredderfailsdueto a defectin materialorworkmanship withintwoyearsfromthedate ofpurchase,returnittoany Searsstore,SearsParts& RepairServiceCenter,or otherCraftsmanoutletinthe UnitedStatesforfreerepair(or replacementif repairprovesimpossible).

Thiswarrantyappliesforonly90 daysfromthedateof purchaseifthischippershredderiseverusedfor commercialor rentalpurposes.

ThiswarrantycoversONLYdefectsinmaterialandworkmanship.SearswillNOTpayfor:

• Expendableitemsthatbecomewornduringnormaluse,includingbutnotlimitedto blades, sparkplug,aircleaner,flailscreenand catcher bag.

• Standardmaintenanceservicing,oilchanges,ortune-ups.

• Tirereplacementor repaircausedbypuncturesfromoutsideobjects,suchasnails,thorns,stumps,orglass.

• Tireorwheelreplacementor repairresultingfromnormalwear,accident,orimproperoperationor maintenance.

• Repairsnecessarybecauseofoperatorabuse,includingbutnotlimitedtodamagecausedbyimpactingobjectsthat bendtheframeor crankshaft,orover-speedingtheengine.

• Repairsnecessarybecauseofoperatornegligence,includingbutnotlimitedto,electricalandmechanicaldamagecausedbyimproper storage,failureto usethepropergradeand amountofengineoil,or failureto maintaintheequipmentaccordingtothe instructions containedin theoperator'smanual.

• Engine(fuelsystem)cleaningorrepairscausedbyfuel determinedto becontaminatedor oxidized(stale).Ingeneral,fuelshouldbeused within30 daysof itspurchasedate.

• Normaldeteriorationandwearof theexteriorfinishes,orproductlabelreplacement.

Thiswarrantyappliesonlywhilethisproductiswithinthe UnitedStates.

Thiswarrantygivesyouspecificlegalrights,andyou mayalsohaveotherrightswhichvaryfromstatetostate.

Sears Brands ManagementCorporation, HoffmanEstates,IL60179

EngineSeries: 1450 EngineOilType: SAE30

EngineOilCapacity: 28ounces Fuel: UnleadedGasoline

SparkPlug: Champion®RC-12YC SparkPlugGap: .030"

©SearsBrands,LLC 2

Model Number.................................................................

Serial Number .................................................................

Dateof Purchase.............................................................

Recordthemodelnumber,serialnumber

anddateof purchaseabove

Thissymbolpointsout importantsafetyinstructionswhich,if not followed,couldendangerthepersonalsafetyand/orpropertyof yourselfandothers. Readandfollowall instructionsin thismanual beforeattemptingtooperatethismachine.Failuretocomplywith theseinstructionsmayresultin personalinjury.Whenyou seethis symbol,HEEDITSWARNING!

Thismachinewasbuiltto beoperatedaccordingto thesafeopera- tionpracticesinthismanual.Aswithanytypeof powerequipment, carelessnessorerroronthe partof theoperatorcan resultin seriousinjury.Thismachineiscapableofamputatingfingers,hands, toesandfeetandthrowingdebris.Failureto observethefollowing safetyinstructionscouldresultin seriousinjuryordeath.

CALIFORNIA PROPOSITION 65

EngineExhaust,someof itsconstituents,andcertainvehicle componentscontainoremitchemicalsknowntoStateof California tocausecancerandbirthdefectsorotherreproductiveharm.

TRAINING

• Read,understand,andfollowall instructionson themachineand in themanual(s)beforeattemptingtoassembleandoperate.

Keepthis manualina safeplaceforfutureand regularreference andfororderingreplacementparts.

• Readthe Operator'sManualandfollowallwarningsandsafety instructions.Failuretodosocan resultin seriousinjuryto the operatorand/orbystanders.Forquestions,call1-800-659-5917.

• Befamiliarwithall controlsandtheir properoperation.Knowhow tostopthe machineanddisengagethemquickly.

• Neverallowchildrenunder16yearsofageto operatethis machine.Children16andovershouldreadandunderstandthe

instructionsandsafeoperationpracticesin thismanualandon themachineandbe trainedandsupervisedbyanadult.

• Neverallowadultsto operatethismachinewithoutproper instruction.

• Keepbystanders,pets,andchildrenat least75feetfromthe machinewhileit isin operation.Stopmachineifanyoneenters

thearea.

• Neverrunanengineindoorsorina poorlyventilatedarea.Engine exhaustcontainscarbonmonoxide,anodorlessanddeadlygas.

• Donot puthandsandfeetnearrotatingpartsor inthefeeding chambersanddischargeopening.Contactwiththerotating impellercanamputatefingers,hands,andfeet.

• Neverattempttounclogeitherthe feedintakeordischarge opening,removeor emptybag,or inspectand repairthemachine whilethe engineisrunning.Shutthe engineoff andwaituntilall movingpartshavecometo a completestop.Disconnectthe spark plugwireandgroundit againsttheengine.

Your Responsibility--Restrict theuseofthispowermachineto personswhoread,understandandfollowthewarningsandinstruc-

tionsinthismanualandon the machine.

SAVETHESEINSTRUCTIONS!

PREPARATION

• Thoroughlyinspecttheareawherethe equipmentisto beused.

Removeall rocks,bottles,cans,or otherforeignobjectswhich couldbepickedupor thrownandcausepersonalinjuryor damageto themachine.

• Alwayswearsafetyglassesorsafetygogglesduringoperation andwhileperformingan adjustmentorrepair,to protectyour eyes.Thrownobjectswhichricochetcancauseseriousinjuryto theeyes.

• Wearsturdy,rough-soledworkshoesandclose-fittingslacksand

shirts.Loosefittingclothesorjewelrycan becaughtin movable parts.Neveroperatethismachineinbarefeetorsandals.Wear leatherworkgloveswhenfeedingmaterialinthe chipperchute.

• Beforestarting,checkallboltsandscrewsforpropertightnessto

besurethe machineisinsafeworkingcondition.Also,visually inspectmachinefor anydamageatfrequentintervals.

• Maintainor replacesafetyandinstructionslabels,asnecessary.

SafeHandling of Gasoline: Toavoidpersonalinjuryor propertydamageuseextremecarein

handlinggasoline.Gasolineisextremelyflammableandthe vaporsare explosive.Seriouspersonalinjurycan occurwhengasolineisspilled onyourselforyourclotheswhichcan ignite.Washyourskinand changeclothesimmediately.

• Useonlyan approvedgasolinecontainer.

• Neverfillcontainersinsideavehicleoronatruckor trailerbed witha plasticliner.Alwaysplacecontainersonthe groundaway

fromyourvehiclebeforefilling.

• Whenpractical,removegas-poweredequipmentfromthetruck ortrailerand refuelitonthe ground.Ifthisis notpossible,then refuelsuchequipmentona trailerwitha portablecontainer,rather thanfroma gasolinedispensernozzle.

• Keepthenozzleincontactwiththe rimof thefuel tankor containeropeningatalltimes untilfuelingiscomplete.Donotuse a nozzlelock-opendevice.

• Extinguishallcigarettes,cigars,pipesandothersourcesof

ignition.

• Neverfuelmachineindoors.

• Neverremovegascapor addfuelwhiletheengineishotor run- ning.Allowenginetocool atleasttwo minutesbeforerefueling.

• Neveroverfill fueltank. Filltankto nomorethan1/2inchbelow bottomoffillerneckto allowspacefor fuelexpansion.

• Replacegasolinecapandtightensecurely.

• Ifgasolineisspilled,wipeitoff theengineandequipment.Move unitto anotherarea.Wait5 minutesbeforestartingtheengine.

• Toreducefirehazards,keepmachinefreeofgrass, leaves,or otherdebrisbuild-up.Cleanupoil orfuelspillageand removeany

fuelsoakeddebris.

• Neverstorethemachineorfuel containerinsidewherethereisan openflame,sparkor pilotlightas on awaterheater,spaceheater,

furnace,clothesdryerorothergasappliances.

OPERATION

• Donot puthandsandfeetnearrotatingpartsor in thefeeding chambersanddischargeopening.Contactwiththerotating impellercanamputatefingers,hands,andfeet.

• Beforestartingthemachine,makesurethe chipperchute,feed intake,andcuttingchamberare emptyandfreeofall debris.

• Thoroughlyinspectallmaterialtobeshreddedandremoveany metal,rocks,bottles,cans,or otherforeignobjectswhichcould causepersonalinjuryor damagetothemachine.

• If itbecomesnecessaryto pushmaterialthroughtheshredder hopper,usea smalldiameterstick.Donotuseyourhandsor feet.

• Iftheimpellerstrikesa foreignobjectorifyourmachineshould startmakinganunusualnoiseorvibration,immediatelyshut theengineoff. Allowthe impellertocometoa completestop.

Disconnectthe sparkplugwire,grounditagainstthe engineand

performthefollowingsteps: a. Inspectfordamage.

b. Repairor replaceanydamagedparts. c. Checkforanyloosepartsandtightento assurecontinued

safeoperation.

• Donotallowanaccumulationof processedmaterialto buildupin thedischargearea.Thiscanpreventproperdischargeandresult inkickbackof materialthroughthefeedopening.

• Donotattempttoshredorchipmateriallargerthanspecified on themachineorinthis manual.Personalinjuryor machine damagecouldresult.

• Neverattempttounclogeitherthefeedintakeordischarge openingwhilethe engineisrunning.Shuttheengineoff,waituntil all movingpartshavestopped,disconnectthesparkplugwireand grounditagainsttheenginebeforeclearingdebris.

• Neveroperatewithouttheshredderhopper,chipperchute,or chutedeflectorproperlyattachedtothemachine.Neveremptyor changedischargebagwhiletheengineis running.

• Keepallguards,deflectorsand safetydevicesinplaceand operatingproperly.

• Keepyourfaceandbodybackandtothe sideof thechipper chutewhilefeedingmaterialintothe machineto avoidaccidental kickbackinjuries.

• Neveroperatethismachinewithoutgoodvisibilityorlight.

• Donotoperatethismachineona paved,gravelor non-level surface.

• Donotoperatethismachinewhileundertheinfluenceof alcohol or drugs.

• Mufflerandenginebecomehotandcancausea burn.Donot touch.

• Neverpick uporcarrymachinewhiletheengineisrunning.

• Ifsituationsoccurwhichare notcoveredinthismanual,usecare andgoodjudgement.ContactCustomerSupportforassistance

andthenameofthe nearestservicedealer.

MAINTENANCE & STORAGE

• Nevertamperwith safetydevices.Checktheirproperoperation

regularly.

• Checkboltsandscrewsfor propertightnessatfrequentintervals to keepthemachineinsafeworkingcondition.Also,visually inspectmachineforanydamageandrepair,if needed.

• Beforecleaning,repairing,or inspecting,stoptheengineand makecertaintheimpellerandall movingpartshavestopped.

Disconnectthe sparkplugwireandgrounditagainsttheengine

to preventunintendedstarting.

• Donotchangetheenginegovernorsettingsoroverspeedthe engine.Thegovernorcontrolsthemaximumsafeoperatingspeed ofthe engine.

• Maintainor replacesafetyandinstructionlabels,asnecessary. Followthismanualforsafeloading,unloading,transporting,and

storageof thismachine. Neverstorethemachineorfuel containerinsidewherethereis an

openflame,sparkorpilot lightsuchas a waterheater,furnace, clothesdryer,etc.

Allowmachinetocoolat least5 minutesbeforestoring.

• Alwaysrefertothe operator'smanualforproperinstructionson off-seasonstorage.

• If thefuel tankhasto bedrained,dothisoutdoors.

• Observeproperdisposallawsand regulationsforgas,oil,etc.to protecttheenvironment.

• Accordingtothe ConsumerProductsSafetyCommission(CPSC) andtheU.S.EnvironmentalProtectionAgency(EPA),thisproduct hasan AverageUsefulLifeofseven(7)years,or 60hoursof operation.Atthe endoftheAverageUsefulLife havethemachine inspectedannuallybyan authorizedservicedealertoensurethat allmechanicalandsafetysystemsareworkingproperlyand not wornexcessively.Failureto do socan resultinaccidents,injuries

ordeath.

DO NOT MODIFY ENGINE

Toavoidseriousinjuryordeath,donot modifyenginein anyway. Tamperingwiththegovernorsettingcan leadto a runawayengineand causeitto operateat unsafespeeds.Nevertamperwithfactorysetting ofenginegovernor.

NOTICE REGARDING EMISSIONS

EngineswhicharecertifiedtocomplywithCaliforniaandfederal

EPAemissionregulationsfor SORE(SmallOff RoadEquipment)are certifiedto operateonregularunleadedgasoline,and mayinclude thefollowingemissioncontrolsystems:EngineModification(EM),

OxidizingCatalyst(CO),SecondaryAirInjection(SAI)and ThreeWay

Catalyst(TWO)if soequipped.

SPARK ARRESTOR

Thismachineis equippedwithan internalcombustionengineand shouldnotbe usedonor nearanyunimprovedforest-covered, brushcoveredor grass-coveredlandunlesstheengine'sexhaust systemisequippedwitha sparkarrestermeetingapplicablelocalor statelaws(if any)

Ifa sparkarresterisused,it shouldbemaintainedineffectiveworking orderbytheoperator.Inthe StateofCaliforniatheaboveisrequired

bylaw (Section4442ofthe CaliforniaPublicResourcesCode).Other

statesmayhavesimilarlaws. Federallawsapplyonfederallands. A sparkarresterforthe muffleris availablethroughyournearestSears

PartsandRepairServiceCenter.

SAFETY SYMBOLS

Thispagedepictsanddescribessafetysymbolsthatmayappearonthisproduct. Read,understand,andfollowallinstructionson themachine beforeattemptingto assembleandoperate.

READ THE OPERATOR'S MANUAL(S)

Read, understand, and follow all instructions in the manual(s) before attempting to assemble and

operate

WARNING-- ROTATING BLADES

Keep hands out of inlet and discharge openings while machine is running. There are rotating blades

inside

• ®

BYSTANDERS Keep bystanders, pets, and children at least 75 feet from the machine while it is in operation. Stop

machine if anyone enters the area.

WARNING-- THROWN DEBRIS

Never operate without the chute deflector properly attached to the machine.

EYEPROTECTION

Always wear safety glasses orsafety goggles when operating this machine.

warningsandinstructionsinthis manualandonthemachine.

I_ ARNING: YourResponsibility--Restricttheuse ofthispowermachinetopersonswho read,understandandfollowthe

SAVETHESEINSTRUCTIONS!

TO AVOID SERIOUS iNJURY:

• Do not operate on uneven ground where unit is unstable, Do not operate on pavement, gravel or other hard surfaces since objects can ricochet and cause injury,

• To avoid a fire hazard, keep leaves, grass, and other combustible materials away from hot engine and

muffler,

• Keep children and others away from area of

operation,

• Wear approved safety glasses, gloves and ear protection.

TO AVOID SERIOUS iNJURY:

Read the owner's manual(s) before starting and using unit. Keep all shields and guards in place and securely

attached. Keep hands, feet, face, clothing and long hair out of

Shredder Hopper, Chipper Chute and Discharge Chute while the engine is running. Rotating cutting blades inside these openings will cause serious personal injury if contacted. Material being

)rocessed

may bounce back from inlet openings or be thrown from the discharge chute. Long hair or loose clothing

may be pulled sucked into the inlet openings.

• Do not place branches over 1/2 inch diameter into the large Shredder Hopper. Branches over 1/2 inch in

diameter should be placed in the Small Chipper Chute.

• If the chipped shredder jams or becomes clogged, immediately shut off the engine and wait for all moving parts to come to a complete stop before

clearing,

• Do not install remove, adjust, or service the discharge screen or any other part while the engine

is running. Blade contact can occur.

ROTATING CUTTING BLADES.

KEEP HANDS AND FEET OUT OF OPENINGS WHILE MACHINE

iS RUNNING.

IMPORTANT:Thisunitisshippedwithoutgasolineoroilintheengine. Becertaintoserviceenginewithgasolineandoilas instructedinthe Operationsectionofthis manualbeforeoperatingyourmachine.

NOTE:Referenceto rightand lefthandsideof theChipperShredder isobservedfromthe operatingposition.

OPENING CARTON

1. Cuteachcornerofthecartonverticallyfromtopto bottom.

2. Removeall looseparts.

3. Removeloosepackingmaterial.

REMOVING UNiT FROM CARTON

1. Liftunitfromthereartodetachitfromunderlyingcartonmaterial androllunitout ofcarton.

2. Checkcartonthoroughlyforanyotherlooseparts.

LOOSE PARTS IN CARTON

• HopperAssembly

• Bag

• ChuteDeflector

• ChipperChute

• Tamper

• SafetyGlasses

• EngineOil

• Owner'sManual

Figure1

ATTACHING THE HOPPER ASSEMBLY

1. A. Removesixhexnutsandwashersfromtheweldstudson the

impellerhousing.Donotremovesupportplate.SeeFigure1.

B. Placehopperassemblyintopositioninfrontof impeller

housing,aligningholesinhopperassemblycollarwithweld studs.

C. Slidehopperassemblyontoweldstudsand replacewashers

andhexnuts.Donottightencompletely.

2. A. Lifthopperassemblyup toimpellerbracketassembly.See

Figure2.

B.Slidethe releaserodout slightlyto hookthe hopperbracket

ontothe rod.SeeFigure2.

C.Tightenthesixhex nutsthatsecurehopperassemblyto

impellerhousingandalsotightenthe hexnutsthat secure hopperbracketto hopperassembly.

Figure2

ATTACHING THE CHUTE DEFLECTOR

1. A. Removethewingknobsfromeachsideof thelowerimpeller housing.SeeFigure3.

Figure3

B.Removethehexlocknut,spacers,andhexboltfromthetopof

theimpellerhousing.

A.Alignthe chutedeflectorinpositiononthe dischargeopening

andinserthexbolt withspacerthroughhingeonchute deflector(spacersfit insideof hinges).SeeFigure4.

ATTACHING THE CHIPPER CHUTE

1. A. Removethethreecuppedwashersandhexnutsfromweld studsaroundtheopeningontheside ofthe impellerhousing. SeeFigure5.

Figure5

B.Removethehex bolts,flatwashers andlocknutsfromthetwo

holesonthe upperendofthe supportbrace.

A.Alignthechipperchuteovertheweldstuds,sothe slotinthe

bottomofthechuteis facingdown.SeeFigure6.

/ i"

/ ,/

/ /s

/ /

Figure4

B.Placesecondspaceroverhex boltinsideotherhingeand

securewithhexlocknut.

C. Securebothsidesofchutedeflectorto impellerhousingusing

wingknobspreviouslyremoved.

/ ,

/ /

Figure6

B.Securechipperchutewiththethreecuppedwashers(cupped

sideagainstthe chipperchute)andhex nutspreviously removed.Donottightenthe nutsatthistime.

Thechippershredderwasshippedwithoneendof the support

bracealreadysecuredtothe lowerframe.Loosenbutdonot removetheboltssecuringthebraceto theframe.

A.Aligntheholesinthe chutewiththeholesin thetopofthe

braceandattachbraceto chipperchutewithhardware

previouslyremoved.Theflatwashersshouldbeplacedunder thebolt headsandagainstthe insidesurfaceofthe plastic chipperchute.Tightensecurely.SeeFigure7.

Figure7

B.Tightenthe boltssecuringthesupportbracetothe frame. C.Tightenthethreenutsontheweld studsholdingthechipper

chuteto the impellerhousing.

ATTACHING THE BAG

Toattachthebag: A. Placetheopeningof thebagcompletelyoverthechute

deflector.

B.Pullon the drawstringuntilthebagis tightaroundchute

deflectoropening.

C.Clipdrawstringbackon itself,tightagainstchutedeflectorto

secureintoposition.SeeFigure8.

Figure8

(large) Hopper Assembly

ReleaseRod

GasFill

(small) Chipper Chute

Tamper--=_

Figure9

Nowthatyouhavesetupyourchippershredderforoperation,get aquaintedwith itscontrolsandfeatures.Theseare describedbelow andillustratedon thispage.Thisknowledgewillallowyouto useyour newequipmenttoits fullestpotential.

CHIPPER CHUTE

Allowstwigsandsmallbranchesupto 3" indiametertobefed intothe impellerforchipping.SeeFigure9.

HOPPER ASSEMBLY

Allowleavesandsmallbranchesupto 1/2diameterto befedintothe impellerforchippingandshredding.Materialcanberakedintohopper assemblybyloweringthehopperassembly.SeeFigure9.

RELEASE ROD

Thereleaserodislocatedon the impellerbracketassemblyandit isusedto releaseorlockthehopperwhen raisingorlowering.See Figure9.

CHUTE DEFLECTOR

Chippedandshreddeddebrisis dischargedoutthechutedeflector. Theunit maybeoperatedwithorwithoutthecollectionbagattachedto thechutedeflector.SeeFigure9.

Chute

Deflector

Theoperationof anychippershreddercan resultinforeignobjects beingthrownintothe eyes,whichcan damageyoureyesseverely. Alwayswearthesafetyglassesprovidedwiththisunitor eyeshields beforechippingor shreddingandwhileperforminganyadjustments or repairs.

TAMPER

Thisplugisinsertedinto thechipperchuteto pushtwigsandsmall

branchestowardstheimpellerbladeswithoutendangeringyour hands.

TH ROTTLE CONTROL

Thislevercontrolstheenginespeedandstopfunction.Throughthree

separatepositionsonthe leverfromleftto right,theoperationisas

follows:

Start/Run Slow/Idle Engine Off

CHOKE CONTROL

Thechokecontrolis usedto chokethecarburetorand assistinstarting theengine.

Meets ANSI Safety Standards

CraftsmanYardVacuumsconformto thesafetystandardoftheAmericanNationalStandardsInstitute(ANSI).

GAS AND OIL FILL-UP

Oil (one bottle shipped with unit) FirstTimeUse

1. Removeoil fillplug.

2. Withthechippershredderonlevelground,useafunneltoempty entirecontentsofoil bottleprovidedintotheengine.

3. Replaceoilfillplugandtighten.

Subsequent Uses Onlyuse highqualitydetergentoil ratedwithAPIserviceclassification

SF,SG,or SH.Selectthe oil'sSAEviscositygradeaccordingtothe expectedoperatingtemperature.Followthechartbelow.

_older _ 32°F _Warmer'_

OilViscosity Chart

Althoughmulti-viscosityoils(5W30,10W30,etc.)improvestarting incoldweather,theywillresultinincreasedoilconsumptionwhen usedabove32°E Checkyourengineoillevelmorefrequentlytoavoid possibleenginedamagefromrunninglowon oil.

1. Checktheoillevelbyremovingtheoilfillplugandlookinginto theoil fill hole.Oil shouldbevisibleup tothethreadsof theoil fill plug,almosttothe pointof overflowing.Fillif necessary.Capac- ity isapproximately28 oz.Overfillingcancauseahazardous situation,be sureto wipeup anyspilledor excessoil.

2. Replaceoilfillplugandtighten.

3. KeepoillevelatFULL.Runningtheenginewithtoolittleoilcan resultinpermanentenginedamage.

Gasoline

Alcoholblendedfuels(calledgasoholorusingethanolormethanol) canattractmoisturewhichleadsto separationand formationof acids duringstorage.Acidicgascandamagethefuel systemofanengine whileinstorage.

Toavoidengineproblems,thefuelsystemshouldbeemptiedbefore storagefor30daysorlonger.Drainthegastank,starttheengine andletit rununtilthe fuellinesandcarburetorare empty.Use

freshfuelnextseason.See STORAGEInstructionsforadditional

information.

Neveruseengineorcarburetorcleanerproductsinthe fueltankor

permanentdamagemayoccur.

NOTE:Checkthefuel levelperiodicallyto avoidrunningoutofgaso- linewhileoperatingthechippershredder.Iftheunit runsout ofgas as

itischipping,itmaybe necessarytounclogthedischargeareabefore itcan be restarted.RefertoSERVICEANDMAINTENANCEsection.

TO START ENGINE

1. Attach sparkplugwireand rubberboottosparkplug.

2. Filltankto nomorethan 1/2inchbelowbottomoffiller neckto providespaceforfuelexpansion.

3. Turnthefuelshut-offvalvetotheONposition.

4. MovethechokeleverontheenginetoCHOKEI'_1 position.(A

warmenginemaynotrequirechoking.)See Figure10.

5. MovethrottlecontroltoSTART/RUN(Rabbit)_ position.See Figure10.

6. Standingbehindtheunit,graspstarterhandleandpullropeout untilyoufeela drag.

Useextremecarewhenhandlinggasoline.Gasolineisextremely flammableandthe vaporsareexplosive.Neverfuelmachineindoors orwhilethe engineishotor running.Extinguishcigarettes,cigars, pipes,andothersourcesof ignition.

1. Removefuelcapfromthefueltank.

2. Makesurethecontainerfromwhichyouwillpourthegasolineis cleanandfreefromrustor foreignparticles.Neverusegasoline thatmaybestalefromlongperiodsofstorageinitscontainer. Gasolinethathasbeensittingfor anyperiodlongerthanfour

weeksshouldbeconsideredstale.

3. Fillfueltankwithclean,fresh,unleadedregulargasolineonly.Do notusegasolinecontainingMETHANOL.Replacefuelcap.

Figure10

NOTE:A noisewillbe heardwhenfindingthe startof thecompression cycle.Thisnoiseis causedbythe flailsandfingers,whicharepartof theshreddingmechanism,andit shouldbeexpecteduntiltheimpeller reachesfull speed.

7. Pulltheropewitha rapid,continuous,fullarmstroke.Keepa firm griponthestarterhandle.Lettheroperewindslowly.

8. Repeat,ifnecessary,untilenginestarts.Whenenginestarts, movechokecontrolgraduallytowardtheRUNI JtIposition..

9. Ifenginefalters,movechokecontrolbacktowardtheCHOKE

I'o,I positionandrepeatsteps5 though8.

10. ALWAYSkeepthethrottlecontrolin theSTART/RUNposition whenoperatingthechippershredder.

TO STOP ENGINE

1. Movethrottlecontrolleverto slow(turtle)'_ position. Wheneverpossible,graduallyreduceenginespeedbefore

stoppingengine.

2. MovethrottlecontrollevertoSTOPI or OFFposition.

3. Turnthefuelshut-offvalvetotheOFFposition.

4. Disconnectsparkplugwireandgrounditagainsttheengineto preventaccidentalstartingwhilethe equipmentisunattended.

SHREDDING

Yardwastesuchas leavesandpineneedlescanbe placedinthe hopperforshredding.Aftermaterialhasbeenprocessedbythe shred- derbladeandflails,it willbeforcedout ofthe chutedeflector,and,if attached,intoadebriscollectionbag.

Observethefollowingguidelineswhenshreddingyarddebris:

• Neverattempttoshredmaterialotherthan normalyarddebris (leaves,twigs,pinecones,etc.).

• Avoidshreddingfibrousplantssuchastomatovines,palmfronds, etc.,untiltheyare thoroughlydriedout.Freshvinesdo notshred wellandtend towrapthemselvesaroundthe impellerandflails.

• Placereasonableamountsofdebrisintothehopperat a time.Do notoverloadthehopper.

• Allowthe materialin thehopperto bedrawnintothebladesand shreddedbeforeaddingadditionaldebristothe hopper.Failureto duesomayresultin acloggedhopper,cloggedchutedeflectoror a stalledengine.

CHIPPING

Branchesupto3" in diametercanbefedintothechipperchute. Observethefollowingguidelineswhenchippingbranches:

• Keepbothhandsfirmlyonthe branchas youfeed itintothe chipperchute.

• Neverfeedmorethanonebranchintothechipperchuteata time.

• Neverfeedanythingotherthanbranches(orwood)intothe chipperchute.

• Applyintermittentpressure(force,inshortpulses)whilefeeding

larger(3-inchdiameter)branchesinto thechipperchute,to avoid boggingor stallingtheengine.

IMPORTANT:Neverfeedbrancheswithadiametergreaterthan three(3)inchesintothechipperchute.Doingsocan resultin serious damageto yourunit'schipperblades,flailsor impeller.

NOTE:Forbestperformance,alwaysoperatetheunitwith sharp chipperblades.If a noticeablelossin performanceisencountered whilechippingbranches,the chipperbladesshouldbereplaced.

LOWERING THE HOPPER ASSEMBLY

1. Withonehandgraspthehandleat thetopofthe hopperassem- blyandlift slightly.

2. Withtheotherhandpulloutonthereleaserodandlowerthe hopperassemblytotheground.

TO EMPTY BAG

1. Un-clipdrawstringandloosenbagfromchutedeflectoropening.

2. Emptybagandreattachtothedischargechuteopening.Pullon

thedrawstringuntilthe bagistightaroundthe chuteopeningand clipthe drawstringtightagainstthe chutedeflector.

IMPORTANT:Theflail screenislocatedinsidethehousingin the

dischargearea.Ifthe flailscreenbecomesclogged,removeand cleanas instructedintheServiceandMaintenancesection.Forbest

performance,itis alsoimportanttokeepthechipperbladessharp.

MAINTENANCE SCHEDULE

Beforeperforminganytypeof maintenance/service,disengageall controlsandstoptheengine.Waituntilallmovingpartshavecometo acompletestop.Disconnectsparkplugwireandgrounditagainstthe enginetopreventunintendedstarting.Alwayswearsafetyglassesduring operationor whileperforminganyadjustmentsor repairs.

EachUse

1st5 - 8 hours

25 hours

Annuallyor50hours

Annuallyor100hours

BeforeStorage 1. Fuelsystem

Underheavyloador inhightemperatures

Engineoillevel

Looseormissinghardware

Unitandengine.

Engineoil

Engineoill-

Aircleaner

Controllinkagesand pivots

Engineoil

Muffler

Sparkplug

1. Check

2. Tightenorreplace

3. Clean

1. Change

2. Replace

3. Lubewithlightoil

1. Change

2. Inspect

1. Clean,checkand resetgap,or

1. Runengineuntilit stopsfromlackof

Followthemaintenanceschedulegivenbelow.Thischartdescribes serviceguidelinesonly.UsetheServiceLogcolumnto keeptrackof completedmaintenancetasks.Tolocatethe nearest SearsService Centeror toscheduleservice,simplycontactSearsat

1-800-4-MY-HOME®.

replacesparkplug.

fueloradda gasolineadditivetothe gasin thetank.

Alwaysstopengineanddisconnectsparkplugwire beforeperforming

Ianymaintenanceoradjustments.Alwayswearsafetyglassesduring [operationor whileperforminganyadjustmentsor repairs.

GENERAL RECOMMENDATIONS

• Alwaysobserveallsafetyrulesfoundonproductlabelsandin

thisoperator'smanualwhenperforminganymaintenance.Safety rulescan befoundonthe productlabelsandin thisOperator's Manualbeginningon page3.

• Thewarrantyon thischippershredderdoesnotcoveritemsthat havebeensubjectedtooperatorabuseor negligence.To receive fullvalue fromwarranty,operatormustmaintaintheequipmentas

instructedhere.

• Someadjustmentswillhavetobe madeperiodicallytomaintain yourunit properly.

• Periodicallycheckall fastenersandmakesurethesearetight.

ENGINE MAINTENANCE

Checking the Spark Plug Cleansparkplugandresettheelectrodegapto0.030"atleastoncea

season;replaceevery100hoursof operation.

Electrode

Porcelain

.030 (.76 mm) gap

Figure 11

• Cleanareaaroundthe sparkplugbase.Donot sandblastspark plug.Sparkplugshouldbecleanedbyscrapingorwirebrushing andwashingwitha commercialsolvent.

• Removeandinspectthesparkplug.Checkgaptomakesureit is setat .030".SeeFigure11.

• Replacethesparkplugif electrodesarepitted,burned,orthe porcelainiscracked.

Servicing the Air Cleaner

Donotusepressurizedairor solventstocleantheaircleaner

cartridge.

Theair cleanerpreventsdamagingdirt, dust,etc.,fromenteringthe carburetorand beingforcedintothe engineandisimportanttoengine lifeandperformance.Neverrunthe enginewithoutanaircleaner completelyassembled.

Replacetheaircleanerevery25 hoursof operation.

1. Loosenscrewsthatholdtheairfiltercover.

2. Opencoverandremoveairfilter.SeeFigure12.

To Drain Oil

1. Runtheengineto warmtheoil.

2. WithengineOFFbutstillwarm,disconnectthe sparkplugwire and keepitawayfromsparkplug.

3. Removeoil draincaplocatedatthebaseoftheengine,anddrain oil intoan appropriatereceptacle.SeeFigure13.

Oil Drain

Air Filter

Cover

3. Discardoldairfilter.

4. installnewairfilter.

5. Closethecoverandtightenscrews. NOTE:Ifthe filteristorn ordamagedinanyway,replaceit.

Check Engine Oil

1. Makesureengineislevelandtheareaaroundoil fill capis clean.

2. Removeoilfillcap.

3. Oilshouldbe nearthetopoftheoil fillcapthreads,almostto the pointof overflowing

Change Engine Oil * OnlyusehighqualitydetergentoilratedwithAPIservice

classificationSF,SG,orSH.Selecttheoil'sSAEviscositygrade accordingtothe expectedoperatingtemperature.Refertoopera- tionsectionforviscositychart.

. Changeengineoil afterthefirst fivetoeighthoursof operation,

andeveryfifty hoursoreveryseasonthereafter.Changeoil every twentyfivehourswhenoperatingengineunderheavyloadorin hightemperatures.

Figure12

End Cap _"

Figure13

Usedoil isa hazardouswasteproduct.Disposeofusedoil properly.

IDo notdiscardwithhouseholdwaste.Checkwithyour localauthori- _tiesorSearsServiceCenterforsafedisposal/recyclingfacilities.

4. Whenengineisdrainedofall oil,replaceandtightentheoildrain cap.

5. Withtheenginelevel,refillwithapproximately28oz. offreshoil.

Fillthe oil upintothe threadsofthe oilfill plug,almosttothepoint

ofoverflowing.

6. Replacetheoilfill plugandwipeupanyoil thatmayhavespilled or overflowed.

7. Replacesparkplugwirebeforestarting.

Service IVluffler

REMOVING THE FLAIL SCREEN

Temperatureof mufflerandnearbyareasmayexceed150°F(65°C). Avoidtheseareas.

• Inspectmufflerevery50 hours,andreplaceif necessary. Replacementpartsforthemufflermustbethe sameandinstalled inthe samepositionas theoriginalparts.

Clean Engine

Dailyor beforeeveryuse,cleangrass,chaffor accumulated debrisfromengine.Keeplinkage,spring,andcontrolsclean. Keepareaaroundandbehindmufflerfreeofanycombustible

debris.

• Keepingenginecleanallowsairmovementaroundengine.

• Enginepartsshouldbekeptcleanto reducetheriskof overheat- ingandignitionof accumulateddebris.

Donot usewaterto cleanengineparts.Watercouldcontaminatefuel system.Usea brushor dry cloth.

Carburetor Adjustment Thecarburetoronthis engineisnotadjustable.

Engine Speed

LUBRICATION

Beforeperforminganytypeofmaintenanceonthemachine waitfor all partsto stopmovinganddisconnectthesparkplugwire. Failure tofollowthis instructioncouldresultinpersonalinjuryor property damage.

Ifthedischargeareabecomesclogged,removetheflail screenand

cleanareaas follows:

Stopthe engine.Makecertainthe chippershredderhascometo a completestop.

Disconnectsparkplugwirefromsparkplugandgroundagainst

theengine.

A. Removethebagandtwowingknobsoneachsideofthechute

deflector.SeeFigure14.

s /

/ /

Donot,attemptto alterthe enginespeedby tamperingwiththe enginesgovernorlinkage.Doingsocouldresultin seriouspersonal

Iinjuryanddamagetotheengine.TheengineRPMhasbeensetat

thefactory.

• HopperAssembly- Lubricatethepivotpointson thehopper assemblywithlightoiloncea season.

• DischargeChute- Lubricatethepivotpointsonthedischarge chutewithlightoilonce a season.

• ReleaseRod-Lubricatethereleaserodand springwith lightoil oncea season.

CLEAN EQUIPMENT

• Cleanthechippershredderthoroughlyaftereachuse.

• Washbagperiodicallywithwater.Allowtodry thoroughlyin shade.

• Iftheflail screenbecomesclogged,removeandcleanas instructedbelow.

NOTE:Cleaningwitha forcefulsprayof waterisnot recommendedas itcouldcontaminatethefuel system.

Figure14

B.Liftthe chutedeflectorupto keepitoutof theway. C.Removethetwo hairpinclipsfromeachclevispinwhich

extendthroughthehousingandremovepins.

D.Removethe flailscreenfrominsidethehousingandcleanthe

screenbyscrapingorwashingwithwater.SeeFigure14.

4. Reinstallthescreen,makingcertainto reassemblethe flailscreen withthecurvesidedown.

5. Reattachthechutedeflectorwiththehardwarepreviouslyremoved andconnectthe bagto unit.

SHARPENING OR REPLACING CHIPPER

BLADES

1. Disconnectthesparkplugwireandgroundagainsttheengine.

2. Removetheflailscreenasinstructedinthe previoussection.

3. Removethechipperchutebyremovingthreehexnutsand

washers.

4. Removethechipperchutesupportbracefromtheframeby

removingthehex bolts.

5. Rotateimpellerassemblybyhanduntilyoulocateoneoftwo chipperbladesinthechipperchuteopening.

6. Removethebladebyremovingtheinternalhexscrews,lock washers,andhexnutswhichsecureittotheimpeller.Retainthe hardware.SeeFigure15.

5. Carefullyseparatethehopperassemblyfromtheimpelleras- semblyandremovetheshredderplate.Theshredderplatecanbe identifiedbyreferringtoitem29 in thepartslist onpage20& 21.

NOTE:Whenreassemblingtheshredderplate,makecertainthe

embossedtabfacesinwardtowardstheimpeller.

6. Removethetwowingknobsthatsecurethechuteddlectorand raisethechute.

7. Inserta 1/2"or 3/4" diameterpipethroughtheflailscreenintothe impellertokeepit fromturningorremovetheflailscreenand inserta pieceof woodintothechuteopening.

8. A. Removethetwointernalhexscrews,lockwashers,andhex locknutswhichsecuretheshredderbladetothe impeller.

B.Removethehex bolt,lockwasher,andflatwasherto

completelyfreeshredderblade.SeeFigure16.

Weld

Figure15

NOTE:Usea3/16"hexkey(Allen)wrenchon theoutsideoftheblade anda 1/2"box(orsocket)wrenchontheinsideoftheimpeller.Hold theAllenwrenchstationaryandrotatethe box(or socket)wrenchto

loosenthenut.

7. Installareplacementblade(PartNo.742-0544)withthehardware removedearlieror sharpenandreplaceexistingblade.

IMPORTANT:Whensharpeningtheblade,protecthandsbyusing gloves.Followtheoriginalangleofgrindandmakesuretoremovean equalamountfromeachblade.

8. Toreplacetheotherblade,rotatetheimpellertoexposethe secondbladeand repeatthestepsabove.

NOTE: Makecertainbladesare reassembledwiththesharpedge facingthesamedirectionas whenremoved.Torquehardwareto250

- 300in.Ibs.

Theimpeller'schipperbladesandshredderbladearesharp.Wear

leatherworkglovesto protectyourhands.

SHARPENING OR REPLACING THE SHREDDER BLADE

1. Stoptheengineandmakecertainthatallmovingpartshave cometoa completestop.

2. Disconnectthesparkplugwireandgroundagainsttheengine.

3. Lowerthehopperassemblyandplacea blockundertheflailhousing.

4. Removethesixhexlocknutsandflatwashersfromtheweld studsonthe flailhousing.Retainthehardware.

FlailHousing

Figure16

9. Installa replacementblade(PartNo.742-0544)with thehardware removedearlierorsharpenandreplaceexistingblade.

IMPORTANT:Whenreassemblingtheshredderblade,tightencenter boltto between550and700in.-Ibs,andthetwooutsideboltsto

between250and350in.-Ibs. NOTE:Usea 3/16"hexkey(Allen)wrenchontheoutsideofthe

shredderbladeanda 1/2"box(or socket)wrenchon theinsideofthe shredderblade.Holdthe Allenwrenchstationaryand rotatethebox (orsocket)wrenchtoloosenthenut. Usecautionwhen removingthe bladetoavoidcontactingtheweldstudson housing.

IMPORTANT:Whensharpeningthe blade,followtheoriginalangle

ofgrindas a guide.It is extremelyimportantthateachcuttingedge

receivesan equalamountof grindingtopreventanunbalancedblade.

An unbalancedbladewill causeexcessivevibrationwhen rotatingat

highspeedsandmaycausedamagetotheunit.The bladecanbe

testedby balancingiton ascrewdriverornail.Removemetalfromthe

heavysideuntil itis balancedevenly.

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