Craftsman 77638 User 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

CAUTION: Before using

this product, read this

manual and follow all

safety rules and operating

instructions.

,, SAFETY

* ASSEMBLY

* OPERATION

* MAINTENANCE

* PARTS LIST

. ESPAI'i,IOL

Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.

Visit our web site: www.craftsman.com

FORM1/O.769-05040

5/4/2009

WarrantyStatement..................................Pac

SafeOperationPractices..........................Pac

SafetyLabels............................................Pac

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

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

ServiceandMaintenance.........................Pac

Off-SeasonStorage..................................Pac

e2

es3-6

e7

es8-11

es12-13

es14-17

e18

TroubleShooting.......................................Page19

PartsList...................................................Page20-30

LabelMap.................................................Page31

RepairProtectionAgreement...................Page34

Espa_ol.....................................................Page35

ServiceNumbers......................................BackCover

CRAFTSMAN FULLWARRANTY

Whenoperatedand maintainedaccordingtoallsuppliedinstructions,ifthischippershredderfailsduetoa defectin materialorworkmanship

withintwoyearsfromthedateofpurchase,returnittoanySearsstore,SearsParts& RepairServiceCenter,or otherCraftsmanoutletinthe

UnitedStatesforfreerepair(or replacementif repairprovesimpossible).

Thiswarrantyappliesforonly90 daysfromthedateof purchaseifthischippershredderiseverusedforcommercialor rentalpurposes.

ThiswarrantycoversONLYdefectsin materialandworkmanship.SearswillNOTpayfor:

• Expendableitemsthatbecomewornduringnormaluse,includingbutnotlimitedtoblades, sparkplug,aircleaner,flailscreenand catcher

bag.

• Standardmaintenanceservicing,oilchanges,or tune-ups.

• Tirereplacementor repaircausedbypuncturesfromoutsideobjects,suchasnails,thorns,stumps,or glass.

• Tireor wheelreplacementorrepairresultingfromnormalwear,accident,orimproperoperationor maintenance.

• Repairsnecessarybecauseofoperatorabuse,includingbutnotlimitedtodamagecausedbyimpactingobjectsthat bendtheframeor

crankshaft,orover-speedingtheengine.

• Repairsnecessarybecauseofoperatornegligence,includingbutnotlimitedto,electricalandmechanicaldamagecausedbyimproper

storage,failureto usethepropergradeandamountofengineoil,or failureto maintaintheequipmentaccordingtotheinstructions

containedin theoperator'smanual.

• Engine(fuelsystem)cleaningor repairscausedbyfueldeterminedto becontaminatedor oxidized(stale).Ingeneral,fuelshouldbeused

within30 daysof itspurchasedate.

• Normaldeteriorationandwearoftheexteriorfinishes,or productlabelreplacement.

Thiswarrantyappliesonlywhilethisproductiswithinthe UnitedStates.

Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhichvaryfromstatetostate.

Sears, Roebuckand Co.,Hoffman Estates,IL60179

EngineSeries: 1450

EngineOilType: SAE30

EngineOilCapacity: 28ounces

Fuel: UnleadedGasoline

SparkPlug: Champion®RC-12YC

SparkPlugGap: .030"

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

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

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

Recordthemodelnumber,serialnumber

anddateof purchaseabove

©SearsBrands,LLC 2

Thissymbolpointsoutimportantsafetyinstructionswhich,if not

followed,couldendangerthepersonalsafetyand/orpropertyof

yourselfandothers.Readandfollowall instructionsin thismanual

beforeattemptingtooperatethismachine.Failuretocomplywith

theseinstructionsmayresultin personalinjury.Whenyouseethis

symbol,HEEDITSWARNING!

CALIFORNIA PROPOSITION 65

EngineExhaust,someof itsconstituents,andcertainvehicle

componentscontainoremitchemicalsknowntoStateofCalifornia

tocausecancerandbirthdefectsorotherreproductiveharm.

Thismachinewasbuilttobeoperatedaccordingtothesafeopera-

tionpracticesin thismanual.Aswithanytypeofpowerequipment,

carelessnessorerroronthepartoftheoperatorcan resultin

seriousinjury.Thismachineiscapableofamputatingfingers,hands,

toesandfeetandthrowingdebris.Failureto observethefollowing

safetyinstructionscouldresultin seriousinjuryordeath.

Your Responsibility=Restrict theuseofthis powermachineto

personswhoread,understandandfollowthewarningsand instruc-

tionsin thismanualandon themachine.

SAVETHESEINSTRUCTIONS!

TRAINING

• Read,understand,andfollowall instructionson themachineand

in themanual(s)beforeattemptingtoassembleandoperate.

Keepthis manualina safeplaceforfutureand regularreference

andfororderingreplacementparts.

• ReadtheOperator'sManualand followallwarningsand safety

instructions.Failuretodosocanresultin seriousinjurytothe

operatorand/orbystanders.Forquestions,call1-800-659-5917.

• Befamiliarwithall controlsandtheirproperoperation.Knowhow

tostopthemachineanddisengagethemquickly.

• Neverallowchildrenunder16yearsofagetooperatethis

machine.Children16andovershouldreadandunderstandthe

instructionsandsafeoperationpracticesin thismanualandon

themachineandbe trainedandsupervisedbyanadult.

• Neverallowadultstooperatethis machinewithoutproper

instruction.

• Keepbystanders,pets,andchildrenatleast75feetfromthe

machinewhileitisin operation.Stopmachineifanyoneenters

thearea.

• Neverrunanengineindoorsor ina poorlyventilatedarea.Engine

exhaustcontainscarbonmonoxide,anodorlessanddeadlygas.

• Donotputhandsandfeetnearrotatingpartsor inthefeeding

chambersanddischargeopening.Contactwiththerotating

impellercanamputatefingers,hands,andfeet.

• Neverattempttounclogeitherthefeedintakeordischarge

opening,removeor emptybag,or inspectand repairthemachine

whiletheengineisrunning.Shuttheengineoff andwaituntilall

movingpartshavecometoa completestop.Disconnectthespark

plugwireandgroundit againsttheengine.

PREPARATION

• Thoroughlyinspecttheareawheretheequipmentistobeused.

Removeall rocks,bottles,cans,or otherforeignobjectswhich

couldbepickedupor thrownandcausepersonalinjuryor

damageto themachine.

• Alwayswearsafetyglassesor safetygogglesduringoperation

andwhileperformingan adjustmentor repair,to protectyour

eyes.Thrownobjectswhichricochetcancauseseriousinjuryto

theeyes.

• Wearsturdy,rough-soledworkshoesandclose-fittingslacksand

shirts.Loosefittingclothesor jewelrycanbecaughtin movable

parts.Neveroperatethismachineinbarefeetorsandals.Wear

leatherworkgloveswhenfeedingmaterialinthechipperchute.

• Beforestarting,checkallboltsandscrewsforpropertightnessto

besurethemachineisinsafeworkingcondition.Also,visually

inspectmachineforanydamageatfrequentintervals.

• Maintainor replacesafetyandinstructionslabels,asnecessary.

3

SafeHandlingof Gasoline:

Toavoidpersonalinjuryor propertydamageuseextremecarein

handlinggasoline.Gasolineisextremelyflammableandthevaporsare

explosive.Seriouspersonalinjurycanoccurwhengasolineisspilled

onyourselfor yourclotheswhichcanignite.Washyourskinand

changeclothesimmediately.

• Useonlyan approvedgasolinecontainer.

• Neverfillcontainersinsidea vehicleor ona truckor trailerbed

witha plasticliner.Alwaysplacecontainersonthegroundaway

fromyourvehiclebeforefilling.

• Whenpractical,removegas-poweredequipmentfromthetruck

ortrailerand refuelitontheground.Ifthisisnotpossible,then

refuelsuchequipmenton a trailerwitha portablecontainer,rather

thanfroma gasolinedispensernozzle.

• Keepthenozzleincontactwiththerimofthefueltankor

containeropeningatalltimesuntilfuelingiscomplete.Donotuse

a nozzlelock-opendevice.

• Extinguishallcigarettes,cigars,pipesandothersourcesof

ignition.

• Neverfuelmachineindoors.

• Neverremovegascapor addfuelwhiletheengineishotor run-

ning.Allowenginetocoolatleasttwo minutesbeforerefueling.

• Neveroverfillfueltank.Filltankto nomorethan1/2inchbelow

bottomoffillernecktoallowspaceforfuelexpansion.

• Replacegasolinecapandtightensecurely.

• Ifgasolineisspilled,wipeitoff theengineandequipment.Move

unittoanotherarea.Wait5 minutesbeforestartingtheengine.

• Toreducefirehazards,keepmachinefreeofgrass,leaves,or

otherdebrisbuild-up.Cleanupoil orfuelspillageand removeany

fuelsoakeddebris.

• Neverstorethemachineorfuelcontainerinsidewherethereisan

openflame,sparkor pilotlightason awaterheater,spaceheater,

furnace,clothesdryerorothergasappliances.

OPERATION

• Donotputhandsandfeetnearrotatingpartsor in thefeeding

chambersanddischargeopening.Contactwiththerotating

impellercanamputatefingers,hands,andfeet.

• Beforestartingthemachine,makesurethechipperchute,feed

intake,andcuttingchamberare emptyandfreeofall debris.

• Thoroughlyinspectall materialtobe shreddedandremoveany

metal,rocks,bottles,cans,or otherforeignobjectswhichcould

causepersonalinjuryor damagetothemachine.

• If itbecomesnecessaryto pushmaterialthroughtheshredder

hopper,usea smalldiameterstick.Donotuseyourhandsor feet.

• Iftheimpellerstrikesa foreignobjector ifyourmachineshould

startmakinganunusualnoiseorvibration,immediatelyshut

theengineoff.Allowtheimpellertocometoa completestop.

Disconnectthesparkplugwire,grounditagainsttheengineand

performthefollowingsteps:

a. Inspectfordamage.

b. Repairor replaceanydamagedparts.

c. Checkforanyloosepartsandtightento assurecontinued

safeoperation.

• Donotallowanaccumulationof processedmaterialto buildupin

thedischargearea.Thiscanpreventproperdischargeandresult

inkickbackof materialthroughthefeedopening.

• Donotattempttoshredorchipmateriallargerthanspecified

on themachineor inthis manual.Personalinjuryor machine

damagecouldresult.

• Neverattempttounclogeitherthefeedintakeor discharge

openingwhiletheengineisrunning.Shuttheengineoff,waituntil

all movingpartshavestopped,disconnectthesparkplugwireand

grounditagainsttheenginebeforeclearingdebris.

• Neveroperatewithouttheshredderhopper,chipperchute,or

chutedeflectorproperlyattachedtothemachine.Neveremptyor

changedischargebagwhiletheengineisrunning.

• Keepallguards,deflectorsand safetydevicesin placeand

operatingproperly.

• Keepyourfaceandbodybackandtothesideofthechipper

chutewhilefeedingmaterialintothemachineto avoidaccidental

kickbackinjuries.

• Neveroperatethis machinewithoutgoodvisibilityorlight.

• Donotoperatethismachineona paved,gravelor non-level

surface.

• Donotoperatethismachinewhileundertheinfluenceof alcohol

or drugs.

• Mufflerandenginebecomehotandcancausea burn.Donot

touch.

• Neverpick uporcarrymachinewhiletheengineisrunning.

• Ifsituationsoccurwhichare notcoveredinthis manual,usecare

andgoodjudgement.ContactCustomerSupportforassistance

andthenameofthenearestservicedealer.

MAINTENANCE & STORAGE

• Nevertamperwith safetydevices.Checktheirproperoperation

regularly.

• Checkboltsandscrewsforpropertightnessatfrequentintervals

to keepthemachineinsafeworkingcondition.Also,visually

inspectmachineforanydamageandrepair,ifneeded.

• Beforecleaning,repairing,or inspecting,stoptheengineand

makecertaintheimpellerandall movingpartshavestopped.

Disconnectthesparkplugwireandgrounditagainsttheengine

to preventunintendedstarting.

• Donotchangetheenginegovernorsettingsoroverspeedthe

engine.Thegovernorcontrolsthemaximumsafeoperatingspeed

oftheengine.

4

• Maintainor replacesafetyandinstructionlabels,asnecessary.

Followthismanualforsafeloading,unloading,transporting,and

storageof thismachine.

Neverstorethemachineorfuelcontainerinsidewherethereisan

openflame,sparkorpilotlightsuchasa waterheater,furnace,

clothesdryer,etc.

Allowmachinetocoolatleast5 minutesbeforestoring.

• Alwaysrefertotheoperator'smanualforproperinstructionson

off-seasonstorage.

• If thefueltankhasto bedrained,do thisoutdoors.

• Observeproperdisposallawsand regulationsforgas,oil,etc.to

protecttheenvironment.

• AccordingtotheConsumerProductsSafetyCommission(CPSC)

andtheU.S.EnvironmentalProtectionAgency(EPA),thisproduct

hasan Average UsefulLifeofseven(7)years,or 60hoursof

operation.AttheendoftheAverage UsefulLife havethemachine

inspectedannuallybyan authorizedservicedealertoensurethat

allmechanicalandsafetysystemsareworkingproperlyand not

wornexcessively.Failuretodo socanresultinaccidents,injuries

ordeath.

DO NOT MODIFY ENGINE

Toavoidseriousinjuryordeath,donotmodifyenginein anyway.

Tamperingwiththegovernorsettingcanleadto a runawayengineand

causeittooperateatunsafespeeds.Nevertamperwithfactorysetting

ofenginegovernor.

NOTICE REGARDING EMISSIONS

EngineswhicharecertifiedtocomplywithCaliforniaandfederal

EPAemissionregulationsforSORE(SmallOff RoadEquipment)are

certifiedtooperateon regularunleadedgasoline,andmayinclude

thefollowingemissioncontrolsystems:EngineModification(EM),

OxidizingCatalyst(CO),SecondaryAirInjection(SAI)and ThreeWay

Catalyst(TWO)if soequipped.

SPARK ARRESTOR

Thismachineis equippedwithan internalcombustionengineand

shouldnotbe usedonor nearanyunimprovedforest-covered,

brushcoveredorgrass-coveredlandunlesstheengine'sexhaust

systemisequippedwitha sparkarrestermeetingapplicablelocalor

statelaws(ifany)

Ifa sparkarresterisused,itshouldbemaintainedin effectiveworking

orderbytheoperator.IntheStateofCaliforniatheaboveis required

bylaw(Section4442oftheCaliforniaPublicResourcesCode).Other

statesmayhavesimilarlaws.Federallawsapplyonfederallands.

A sparkarresterforthemufflerisavailablethroughyournearestSears

PartsandRepairServiceCenter.

SAFETY SYMBOLS

Thispagedepictsanddescribessafetysymbolsthatmayappearonthisproduct. Read,understand,andfollowall instructionson themachine

beforeattemptingtoassembleandoperate.

i

• ®

il

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 or safety goggles when operating this machine.

I_ ARNING: YourResponsibility--Restricttheuseofthispowermachinetopersonswhoread,understandandfollowthe

warningsand instructionsinthis manualandonthemachine.

J

SAVETHESEINSTRUCTIONS!

6

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.

ROTATING CUTTING BLADES.

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.

KEEP HANDS AND FEET OUT

OF OPENINGS WHILE MACHINE

iS RUNNING.

4

7

IMPORTANT:Thisunitisshippedwithoutgasolineoroil intheengine.

Becertaintoserviceenginewithgasolineandoilasinstructedinthe

Operationsectionofthis manualbeforeoperatingyourmachine.

NOTE:Referenceto rightand lefthandsideoftheChipperShredder

isobservedfromtheoperatingposition.

OPENING CARTON

1. Cuteachcornerofthecartonverticallyfromtopto bottom.

2. Removeall looseparts.

3. Removeloosepackingmaterial.

REMOVING UNiT FROM CARTON

1. Liftunitfromthereartodetachitfromunderlyingcartonmaterial

androllunitoutofcarton.

2. Checkcartonthoroughlyforanyotherlooseparts.

LOOSE PARTS IN CARTON

• HopperAssembly

• Bag

• ChuteDeflector

• ChipperChute

• Tamper

• SafetyGlasses

• EngineOil

• Owner'sManual

ATTACHING THE HOPPER ASSEMBLY

1. A. Removesixhexnutsandwashersfromtheweldstudson the

impellerhousing.Donotremovesupportplate.SeeFigure1.

B. Placehopperassemblyintopositioninfrontofimpeller

housing,aligningholesinhopperassemblycollarwithweld

studs.

C. Slidehopperassemblyontoweldstudsand replacewashers

andhexnuts.Donottightencompletely.

2. A. Lifthopperassemblyup toimpellerbracketassembly.See

Figure2.

B.Slidethereleaserodoutslightlytohookthehopperbracket

ontothe rod.SeeFigure2.

C.Tightenthesixhexnutsthatsecurehopperassemblyto

impellerhousingandalsotightenthehexnutsthat secure

hopperbracketto hopperassembly.

f

Figure1

J

f

Figure2

8

ATTACHING THE CHUTE DEFLECTOR

.

A.Removethewingknobsfromeachsideofthelowerimpeller

housing.SeeFigure3.

B.Removethehexlocknut,spacers,andhexboltfromthetopof

theimpellerhousing.

A.Alignthechutedeflectorin positiononthedischargeopening

andinserthexboltwithspacerthroughhingeonchute

deflector(spacersfit insideofhinges).SeeFigure4.

B.Placesecondspaceroverhexboltinsideotherhingeand

securewithhexlocknut.

C. Securebothsidesofchutedeflectorto impellerhousingusing

wingknobspreviouslyremoved.

ATTACHING THE CHIPPER CHUTE

A.Removethethreecuppedwashersandhexnutsfromweld

studsaroundtheopeningonthesideoftheimpellerhousing.

SeeFigure5.

B.Removethehexbolts,flatwashers,and locknutsfromthetwo

holeson theupperendofthesupportbrace.

i

Figure3

Figure4

f

Figure5

9

.

A,Alignthechipperchuteovertheweldstuds,sotheslotin the

bottomofthechuteisfacingdown.SeeFigure6.

B.Securechipperchutewith thethreecuppedwashers(cupped

sideagainstthechipperchute)and hexnutspreviously

removed.Donottightenthenutsatthistime.

Thechippershredderwasshippedwithoneendofthesupport

bracealreadysecuredtothelowerframe.Loosenbutdo not

removetheboltssecuringthebraceto theframe.

A.Aligntheholesinthechutewiththeholesinthetopofthe

braceandattachbracetochipperchutewithhardware

previouslyremoved,Theflatwashersshouldbe placedunder

theboltheadsandagainsttheinsidesurfaceoftheplastic

chipperchute.Tightensecurely.SeeFigure7.

B.Tightentheboltssecuringthesupportbracetotheframe.

C.Tightenthethreenutsontheweldstudsholdingthechipper

chuteto theimpellerhousing.

ATTACHING THE BAG

1. Toattachthebag:

A. Placetheopeningof thebagcompletelyoverthechute

deflector,

B. Pullonthedrawstringuntilthebagistightaroundchute

deflectoropening.

C. Clipdrawstringbackon itself,tightagainstchutedeflectorto

secureintoposition.SeeFigure8.

f

/

/ /

/ / ,,/

/ ,,

i /

/'

',\ ,//

/

\,\ ,/

Figure6

/

,/

/

i /

/ /

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Figure7

Figure8

10

(large) HopperAssembly

ReleaseRod

(small) Chipper Chute

Tamper===--_

GasFill

@

Chute

Deflector

Figure9

Nowthatyouhavesetupyourchippershredderforoperation,get

aquaintedwith itscontrolsandfeatures.Theseare describedbelow

andillustratedon thispage.Thisknowledgewillallowyoutouseyour

newequipmenttoits fullestpotential.

CHIPPER CHUTE

Allowstwigsandsmallbranchesup to3" indiametertobefedintothe

impellerforchipping.SeeFigure9.

Theoperationof anychippershreddercan resultinforeignobjects

beingthrownintotheeyes,whichcandamageyoureyesseverely.

Alwayswearthesafetyglassesprovidedwiththisunitor eyeshields

beforechippingor shreddingandwhileperforminganyadjustments

or repairs.

TAMPER

HOPPER ASSEMBLY

Allowleavesandsmallbranchesupto 1/2diameterto befedintothe

impellerforchippingandshredding.Materialcanberakedintohopper

assemblybyloweringthehopperassembly.SeeFigure9.

RELEASE ROD

Thereleaserodislocatedon theimpellerbracketassemblyandit

isusedto releaseorlockthehopperwhenraisingor lowering.See

Figure9.

CHUTE DEFLECTOR

Chippedandshreddeddebrisisdischargedoutthechutedeflector.

Theunitmaybeoperatedwithorwithoutthecollectionbagattachedto

thechutedeflector.SeeFigure9.

Thisplugisinsertedintothechipperchuteto pushtwigsandsmall

branchestowardstheimpellerbladeswithoutendangeringyourhands.

TH ROTTLE CONTROL

Thislevercontrolstheenginespeedandstopfunction.Throughthree

separatepositionsontheleverfromleftto right,theoperationisas

follows:

Start/Run Slow/Idle Engine Off

CHOKE CONTROL

Thechokecontrolisusedtochokethecarburetorand assistinstarting

theengine.

Meets ANSI Safety Standards

CraftsmanYardVacuumsconformtothesafetystandardoftheAmericanNationalStandardsInstitute(ANSI).

11

GAS AND OIL FILL-UP

Oil (one bottle shipped with unit)

FirstTimeUse

1. Removeoil filldipstick.

2. Withthechippershredderonlevelground,usea funneltoempty

entirecontentsofoil bottleprovidedintotheengine.

3. Replaceoil filldipstickandtighten.

Subsequent Uses

Onlyusehighqualitydetergentoil ratedwithAPIserviceclassification

SF,SG,or SH.Selecttheoil'sSAEviscositygradeaccordingtothe

expectedoperatingtemperature.Followthechartbelow.

_older _ 32°F _Warmer'_

OilViscosity Chart

J

Althoughmulti-viscosityoils(5W30,10W30,etc.)improvestarting

incoldweather,theywillresultinincreasedoil consumptionwhen

usedabove32°E Checkyourengineoillevelmorefrequentlytoavoid

possibleenginedamagefromrunninglowon oil.

1. Checktheoil levelmakingcertainnotto rubthedipstickalongthe

insidewallsoftheoil filltube.Thiswouldresultina falsedipstick

reading.Wipedipstickcleanwithcloth.Replaceandtighten

dipstick.Removeandcheckoil level.Refillto FULLmarkon

dipstick,if necessary.Capacityisapproximately28oz. Overfilling

willcausetheenginetosmokeprofuselyandwillresultinpoor

engineperformance.

2. Replaceoil filldipstickandtighten.

l Useextremecarewhenhandlinggasoline.Gasolineisextremely

flammableandthevaporsareexplosive.Neverfuelmachineindoors

or whiletheengineis hotor running.Extinguishcigarettes,cigars,

pipes,andothersourcesofignition.

3. Keepoil levelatFULL.Runningtheenginewithtoolittleoil can

resultinpermanentenginedamage.

Gasoline

1. Removefuelcapfromthefueltank.

2. Makesurethecontainerfromwhichyouwillpourthegasolineis

cleanandfreefromrustor foreignparticles.Neverusegasoline

thatmaybestalefromlongperiodsofstoragein itscontainer.

Gasolinethathasbeensittingforanyperiodlongerthanfour

weeksshouldbeconsideredstale.

3. Fillfueltankwithclean,fresh,unleadedregulargasolineonly.Do

notusegasolinecontainingMETHANOL.Replacefuelcap.

Alcoholblendedfuels(calledgasoholor usingethanolor methanol)

canattractmoisturewhichleadstoseparationand formationofacids

duringstorage.Acidicgascandamagethefuelsystemofanengine

whilein storage.

Toavoidengineproblems,thefuelsystemshouldbeemptiedbefore

storagefor30daysorlonger.Drainthegastank,starttheengine

andletit rununtilthefuellinesandcarburetorare empty.Use

freshfuelnextseason.See STORAGEInstructionsforadditional

information.

Neveruseengineorcarburetorcleanerproductsinthefueltankor

permanentdamagemayoccur.

NOTE:Checkthefuellevelperiodicallytoavoidrunningoutofgaso-

linewhileoperatingthechippershredder.Iftheunitrunsoutofgasas

itischipping,itmaybe necessarytounclogthedischargeareabefore

itcanbe restarted.RefertoSERVICEANDMAINTENANCEsection.

TO START ENGINE

1. Attachsparkplugwireand rubberboottosparkplug.

2. Filltankto nomorethan1/2inchbelowbottomoffillerneckto

providespaceforfuelexpansion.

3. Turnthefuelshut-offvalvetotheONposition.

4. MovethechokeleverontheenginetoCHOKEI'i,I position.(A

warmenginemaynotrequirechoking.)See Figure10.

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

Figure10.

6. Standingbehindtheunit,graspstarterhandleand pullropeout

untilyoufeela drag.

f

Figure10

J

12

NOTE:A noisewillbe heardwhenfindingthestartofthecompression

cycle.Thisnoiseiscausedbytheflailsandfingers,whicharepartof

theshreddingmechanism,andit shouldbe expecteduntiltheimpeller

reachesfull speed.

7. Pulltheropewitha rapid,continuous,fullarmstroke.Keepa firm

griponthestarterhandle.Lettheroperewindslowly.

8. Repeat,if necessary,untilenginestarts.Whenenginestarts,

movechokecontrolgraduallytowardtheRUNIJtIposition..

9. If enginefalters,movechokecontrolbacktowardtheCHOKE

I'o,I positionand repeatsteps5 though8.

10. ALWAYSkeepthethrottlecontrolin theSTART/RUNposition

whenoperatingthechippershredder.

TO STOP ENGINE

1. Movethrottlecontrollevertoslow(turtle)'_ position.

Wheneverpossible,graduallyreduceenginespeedbefore

stoppingengine.

2. MovethrottlecontrollevertoSTOPI or OFFposition.

3. Turnthefuelshut-offvalvetotheOFFposition.

4. Disconnectsparkplugwireandgrounditagainsttheengineto

preventaccidentalstartingwhiletheequipmentisunattended.

SHREDDING

Yardwastesuchas leavesandpineneedlescanbe placedin the

hopperforshredding.Aftermaterialhasbeenprocessedbythe shred-

derbladeandflails,itwillbeforcedoutofthechutedeflector,and,if

attached,intoadebriscollectionbag.

Observethefollowingguidelineswhenshreddingyarddebris:

• Neverattempttoshredmaterialotherthannormalyarddebris

(leaves,twigs,pinecones,etc.).

• Avoidshreddingfibrousplantssuchastomatovines,palmfronds,

etc.,untiltheyare thoroughlydriedout. Freshvinesdo notshred

wellandtendtowrapthemselvesaroundtheimpellerandflails.

• Placereasonableamountsofdebrisintothehopperata time.Do

notoverloadthehopper.

• Allowthematerialin thehopperto bedrawnintothebladesand

shreddedbeforeaddingadditionaldebristothehopper.Failureto

duesomayresultin acloggedhopper,cloggedchutedeflectoror

a stalledengine.

CHIPPING

Branchesupto3" in diametercanbefedintothechipperchute.

Observethefollowingguidelineswhenchippingbranches:

• Keepbothhandsfirmlyonthebranchasyoufeeditintothe

chipperchute.

• Neverfeedmorethanonebranchintothechipperchuteata time.

• Neverfeedanythingotherthanbranches(orwood)intothe

chipperchute.

• Applyintermittentpressure(force,inshortpulses)whilefeeding

larger(3-inchdiameter)branchesintothechipperchute,toavoid

boggingor stallingtheengine.

IMPORTANT:Neverfeedbrancheswitha diametergreaterthan

three(3)inchesintothechipperchute.Doingsocanresultin serious

damageto yourunit'schipperblades,flailsor impeller.

NOTE:Forbestperformance,alwaysoperatetheunitwith sharp

chipperblades.If a noticeablelossin performanceisencountered

whilechippingbranches,thechipperbladesshouldbe replaced.

LOWERING THE HOPPER ASSEMBLY

1. Withonehandgraspthehandleatthetopofthehopperassem-

blyandlift slightly.

2. Withtheotherhandpulloutonthereleaserodandlowerthe

hopperassemblytotheground.

TO EMPTY BAG

1. Un-clipdrawstringandloosenbagfromchutedeflectoropening.

2. Emptybagandreattachtothedischargechuteopening.Pullon

thedrawstringuntilthebagistightaroundthechuteopeningand

clipthedrawstringtightagainstthechutedeflector.

IMPORTANT:Theflailscreenislocatedinsidethehousingin the

dischargearea.Iftheflailscreenbecomesclogged,removeand

cleanas instructedintheServiceand Maintenancesection.Forbest

performance,itisalsoimportanttokeepthechipperbladessharp.

13

MAINTENANCE SCHEDULE

Beforeperforminganytypeofmaintenance/service,disengageall

controlsandstoptheengine.Waituntilallmovingpartshavecometo

acompletestop.Disconnectsparkplugwireandgrounditagainstthe

enginetopreventunintendedstarting.Alwayswearsafetyglassesduring

operationor whileperforminganyadjustmentsor repairs.

Followthemaintenanceschedulegivenbelow.Thischartdescribes

serviceguidelinesonly.UsetheServiceLogcolumntokeeptrackof

completedmaintenancetasks.Tolocatethe nearest SearsService

Centeror toscheduleservice,simplycontactSearsat

1-800-4-MY-HOME®.

EachUse

1st5 - 8 hours

25 hours

Annuallyor 50hours

Annuallyor 100hours

BeforeStorage 1. Fuelsystem

Underheavyloador inhightemperatures

.

2.

3.

1.

2.

3.

1.

2.

1.

Engineoillevel

Looseormissinghardware

Unitandengine.

Engineoil

Engineoill-

Aircleaner

Controllinkagesand pivots

Engineoil

Muffler

Sparkplug

1. Check

2. Tightenor replace

3. Clean

1. Change

2. Replace

3. Lubewithlightoil

1. Change

2. Inspect

1. Clean,checkand resetgap,or

replacesparkplug.

1. Runengineuntilit stopsfromlackof

fueloradda gasolineadditivetothe

gasin thetank.

Alwaysstopengineanddisconnectsparkplugwirebeforeperforming

Ianymaintenanceoradjustments.Alwayswearsafetyglassesduring

[operationor whileperforminganyadjustmentsor repairs.

GENERAL RECOMMENDATIONS

• Alwaysobserveallsafetyrulesfoundonproductlabelsandin

thisoperator'smanualwhenperforminganymaintenance.Safety

rulescanbefoundonthe productlabelsandin thisOperator's

Manualbeginningon page3.

• Thewarrantyon thischippershredderdoesnotcoveritemsthat

havebeensubjectedtooperatorabuseor negligence.Toreceive

fullvaluefromwarranty,operatormustmaintaintheequipmentas

instructedhere.

• Someadjustmentswillhavetobe madeperiodicallytomaintain

yourunitproperly.

• Periodicallycheckall fastenersand makesurethesearetight.

ENGINE MAINTENANCE

Checking the Spark Plug

Cleansparkplugandresettheelectrodegapto0.030"atleastoncea

season;replaceevery100hoursofoperation.

f

Electrode

Porcelain

,L

.030 (.76 mm) gap

Figure 11

• Cleanareaaroundthesparkplugbase.Donotsandblastspark

plug.Sparkplugshouldbecleanedbyscrapingor wirebrushing

andwashingwitha commercialsolvent.

• Removeandinspectthesparkplug.Checkgaptomakesureitis

setat .030".SeeFigure11.

• Replacethesparkplugif electrodesare pitted,burned,or the

porcelainiscracked.

14

Servicing the Air Cleaner f

Donotusepressurizedairor solventstocleantheaircleaner

cartridge.

Theair cleanerpreventsdamagingdirt, dust,etc.,fromenteringthe

carburetorand beingforcedintotheengineandisimportanttoengine

lifeandperformance.Neverruntheenginewithoutan aircleaner

completelyassembled.

Replacetheaircleanerevery25 hoursofoperation.

1. Loosenscrewsthatholdtheairfiltercover.

2. Opencoverandremoveair filter.See Figure12.

3. Discardold airfilter.

4. Installnewairfilter.

5. Closethecoverandtightenscrews.

NOTE:Ifthefilteristornordamagedinanyway,replaceit.

Check Engine Oil

1. Checkoilbeforeeachuse.Stopengineandwaitseveralminutes

beforecheckingoil level.Withengineon levelground,theoil must

beto FULLmarkon dipstick.

2. Removeoilfilldipstickandwipecleanwithcloth.

3. Replaceandtightendipstick.Removeandcheckoil level.Level

shouldbeatFULLmark.

4. If needed,addoil slowly- recheck.Donotoverfill.

5. Wipedipstickclean,replaceandtighten.Removeandcheckoil

level.Oil levelshouldbe atFULLlineondipstick.

Donotoverfill.Overfillingwithoil maycausetheenginetonotstart,or

hardstarting.If overtheFULLmarkon thedipstick,drainoilto reduce

oil leveltoFULLmarkondipstick.

Change Engine Oil

* Onlyusehighqualitydetergentoil ratedwithAPIservice

classificationSF,SG,orSH.Selecttheoil'sSAEviscositygrade

accordingtotheexpectedoperatingtemperature.Refertoopera-

tionsectionforviscositychart.

, Changeengineoil afterthefirstfivetoeighthoursofoperation,

andeveryfifty hoursoreveryseasonthereafter.Changeoil every

twentyfivehourswhenoperatingengineunderheavyloadorin

hightemperatures.

To Drain Oil

1. Drainthefuelfromthetankbyrunningtheengineuntilthefuel

tankisempty.

2. WithengineOFFbutstillwarm,disconnectsparkplugwireand

keepitawayfromsparkplug.

3over

_ J

Figure12

End Cap----_d_ _

J

Figure13

3. Removeoil drainendcaplocatedatthebaseoftheengine,and

drainoil intoanappropriatereceptacle.SeeFigure13.

Usedoil isa hazardouswasteproduct.Disposeofusedoil properly.

IDonotdiscardwithhouseholdwaste.Checkwithyourlocalauthori-

_tiesorSearsServiceCenterforsafedisposal/recyclingfacilities.

.

5.

Replaceandtightentheoildrainendcap.

Whenengineisdrainedofall oil,placeenginelevel.Refillwith

approximately28oz.offreshoil.FilltoFULLlineondipstick.

Donotoverfill.Referto CheckEngineOil inthis SERVICE&

MAINTENANCEsection.

6. Replacesparkplugwirebeforestarting.

15

Service IVluffler f

Temperatureof mufflerandnearbyareasmayexceed150°F(65°C).

Avoidtheseareas.

• Inspectmufflerevery50 hours,andreplaceif necessary.

Replacementpartsforthemufflermustbethe sameandinstalled

inthe samepositionastheoriginalparts.

Clean Engine

Dailyor beforeeveryuse,cleangrass,chaffor accumulated

debrisfromengine.Keeplinkage,spring,andcontrolsclean.

Keepareaaroundandbehindmufflerfreeofanycombustible

debris.

• Keepingenginecleanallowsairmovementaroundengine.

• Enginepartsshouldbe keptcleanto reducetheriskofoverheat-

ingandignitionofaccumulateddebris.

//

/

i

/

Donotusewatertocleanengineparts.Watercouldcontaminatefuel

system.Usea brushor drycloth.

Carburetor Adjustment

Thecarburetoronthis engineisnotadjustable.

Donot,attempttoaltertheenginespeedbytamperingwiththe

enginesgovernorlinkage.Doingsocouldresultin seriouspersonal

Iinjuryanddamagetotheengine.TheengineRPMhasbeensetat

thefactory.

Engine Speed

LUBRICATION

• HopperAssembly-Lubricatethepivotpointson thehopper

assemblywithlightoiloncea season.

• DischargeChute- Lubricatethepivotpointsonthedischarge

chutewithlightoiloncea season.

• ReleaseRod-Lubricatethereleaserodand springwith lightoil

oncea season.

CLEAN EQUIPMENT

• Cleanthechippershredderthoroughlyaftereachuse.

• Washbagperiodicallywithwater.Allowtodrythoroughlyin

shade.

• Iftheflailscreenbecomesclogged,removeandcleanas

instructedbelow.

NOTE:Cleaningwitha forcefulsprayofwaterisnotrecommendedas

itcouldcontaminatethefuelsystem.

Figure14

Beforeperforminganytypeofmaintenanceonthemachine,waitfor

all partsto stopmovinganddisconnectthesparkplugwire.Failure

tofollowthis instructioncouldresultin personalinjuryor property

damage.

REMOVING THE FLAIL SCREEN

Ifthedischargeareabecomesclogged,removetheflailscreenand

cleanareaasfollows:

1. Stoptheengine.Makecertainthechippershredderhascometo

a completestop.

2. Disconnectsparkplugwirefromsparkplugandgroundagainst

theengine.

3. A. Removethebagandtwowingknobsoneachsideofthechute

deflector.SeeFigure14.

B.Liftthechutedeflectoruptokeepitoutoftheway.

C.Removethetwo hairpinclipsfromeachclevispinwhich

extendthroughthehousingand removepins.

D.Removetheflailscreenfrominsidethehousingandcleanthe

screenbyscrapingor washingwith water.SeeFigure14.

4. Reinstallthescreen,makingcertaintoreassembletheflailscreen

withthecurvesidedown.

5. Reattachthechutedeflectorwiththehardwarepreviouslyremoved

andconnectthebagto unit.

SHARPENING OR REPLACING CHIPPER

BLADES

1. Disconnectthesparkplugwireandgroundagainsttheengine.

2. Removetheflailscreenasinstructedinthe previoussection.

3. Removethechipperchutebyremovingthreehexnutsand

washers.

16

4, Removethechipperchutesupportbracefromtheframeby

removingthehexbolts.

5. Rotateimpellerassemblybyhanduntilyoulocateone oftwo

chipperbladesin thechipperchuteopening.

6, Removethebladebyremovingtheinternalhexscrews,lock

washers,andhexnutswhichsecureittothe impeller.Retainthe

hardware,SeeFigure15,

NOTE:Usea3/16"hexkey(Allen)wrenchon theoutsideoftheblade

anda 1/2"box(or socket)wrenchontheinsideoftheimpeller.Hold

theAllenwrenchstationaryand rotatethebox(or socket)wrenchto

loosenthenut.

7. Installa replacementblade(PartNo.742-0544)withthehardware

removedearlieror sharpenand replaceexistingblade.

IMPORTANT:Whensharpeningtheblade,protecthandsbyusing

gloves.Followtheoriginalangleofgrindandmakesuretoremovean

equalamountfromeachblade.

8. Toreplacetheotherblade,rotatetheimpellertoexposethe

secondbladeand repeatthestepsabove.

NOTE: Makecertainbladesare reassembledwiththesharpedge

facingthesamedirectionaswhenremoved.Torquehardwareto250

- 300in.Ibs.

Theimpeller'schipperbladesand shredderbladearesharp.Wear

leatherworkglovestoprotectyourhands.

SHARPENING OR REPLACING THE

SHREDDER BLADE

1. Stoptheengineandmakecertainthatallmovingpartshave

cometoa completestop.

2. Disconnectthesparkplugwireandgroundagainsttheengine.

3. Lowerthehopperassemblyandplacea blockundertheflailhousing.

4. Removethesix hexlocknutsandflatwashersfromtheweld

studsontheflailhousing.Retainthehardware.

5. Carefullyseparatethehopperassemblyfromthe impelleras-

semblyand removetheshredderplate.Theshredderplatecanbe

identifiedby referringtoitem29in thepartsliston page20 &21.

Impeller

Blade

J

Figure15

Weld Studs,

/

Flail Housing

Figure16

IMPORTANT:Whenreassemblingtheshredderblade,tightencenter

bolttobetween550and700in.-Ibs,andthetwooutsideboltsto

between250and350in.-Ibs.

NOTE:Whenreassemblingtheshredderplate,makecertainthe

embossedtabfacesinwardtowardstheimpeller.

6. Removethetwo wingknobsthatsecurethechutedeflectorand

raisethechute.

7. Inserta 1/2"or3/4" diameterpipethroughtheflailscreenintothe

impellertokeepit fromturningor removetheflailscreenand

inserta pieceof woodintothechuteopening.

8. A.Removethetwointernalhexscrews,lockwashers,andhex

locknutswhichsecurethe shredderbladetotheimpeller.

B.Removethehexbolt,lockwasher,andflat washerto

completelyfreeshredderblade.SeeFigure16.

9. Installa replacementblade(PartNo.742-0544)withthehardware

removedearlieror sharpenandreplaceexistingblade.

NOTE:Usea 3/16"hexkey(Allen)wrenchontheoutsideofthe

shredderbladeanda 1/2"box(or socket)wrenchon theinsideofthe

shredderblade.HoldtheAllenwrenchstationaryand rotatethebox

(orsocket)wrenchtoloosenthenut. Usecautionwhenremovingthe

bladetoavoidcontactingtheweldstudson housing.

IMPORTANT:Whensharpeningtheblade,followtheoriginalangle

ofgrindasa guide.It isextremelyimportantthateachcuttingedge

receivesan equalamountofgrindingtopreventan unbalancedblade.

An unbalancedbladewillcauseexcessivevibrationwhenrotatingat

highspeedsandmaycausedamagetotheunit.Thebladecanbe

testedbybalancingiton ascrewdriverornail.Removemetalfromthe

heavysideuntilitisbalancedevenly.

17

Neverstorechippershredderwithfuelin tankindoorsor in poorly

ventilatedareaswherefuelfumesmayreachan openflame,spark,

or pilotlightasona furnace,waterheater,clothesdryer,or gas

appliance.

PREPARING THE ENGINE

Forenginesstoredover30 days:

1. Topreventgumfromforminginfuelsystemor oncarburetor

parts,runengineuntilit stopsfromlackof fuelor adda gasoline

additivetothegasinthetank.Ifyouusea gasadditive,runthe

engineforseveralminutestocirculatetheadditivethroughthe

carburetor--afterwhichtheengineandfuelcanbestoredup to

six months.

2. Whileengineis stillwarm,changetheoil.SeeChangeEngineOil

in SERVICEANDMAINTENANCEsection.

3. Removesparkplugand pourapproximately1oz. (30ml)ofclean

engineoil intothecylinder.Pulltherecoilstarterseveraltimesto

distributetheoil,andreinstallthe sparkplug.

4. Cleanengineofsurfacedebris.

PREPARING THE CHIPPER SHREDDER

* Whenstoringthechippershredderinan unventilatedor metal

storageshed,careshouldbetakento rustproofthenon-painted

surfaces.Usinga lightoil orsilicone,coattheequipment,

especiallyanysprings,bearings,andcables.

, Removealldirt fromexteriorofengineandequipment.

, Followlubricationrecommendations.

o Storeequipmentin a clean,dryarea.Donotstorenextto

corrosivematerials,suchasfertilizer.Donotstoreinan area

whereequipmentispresentthatmayusea pilotlightor hasa

componentthatcancreatea spark.

18

Beforeperforminganytypeofmaintenance/service,disengageall

controlsandstoptheengine.Waituntilallmovingpartshavecometo

acompletestop.Disconnectsparkplugwireandgrounditagainstthe

enginetopreventunintendedstarting.Alwayswearsafetyglassesduring

operationor whileperforminganyadjustmentsor repairs.

Enginefailstostart

Enginerunserratically

1. Throttlelevernotincorrectstartingposition

2. ChokenotintheCHOKEposition

3. Sparkplugwiredisconnected

4. Faultysparkplug

5. Fueltankemptyor stalefuel

6. Cannotpullrecoilcord

7. Engineflooded

1. UnitrunningonCHOKE

2. Sparkplugwireloose

3. Stalefuel

4. Waterordirtin fuelsystem

5. Dirtyair cleaner

6. LowengineRPM

7. Carburetoroutofadjustment

1. Engineoillevellow

2. Airflowrestricted

Engineoverheats

Enginehesitatesat highRPMs 1. Sparkpluggap settooclose

Engineidlespoorly 1. Fouledsparkplug

2. Dirtyair cleaner

Excessivevibration 1. Loosepartsor damagedimpeller

Unitdoesnotdischarge 1. Chuteddlector clogged

Rateofdischargeslows

considerablyorcompositionof

dischargedmaterialchanges

2. Foreignobjectlodgedin impeller

3. LowengineRPM

1. LowengineRPM

2. Chipperbladedull

1. MovethrottlelevertoSTART/RUNposition.

2. MoveCHOKEto theCHOKEposition.

3. Connectwiretosparkplug.

4. Clean,adjustgap,or replace.

5. Filltankwithclean,freshgasoline.

6. Obstructionlodgedin impeller.Disconnectspark

plugwireandremovelodgedobject.

7. Waita fewminutesto restart.

1. MovechokelevertotheRUNposition.

2. Connectandtightensparkplugwire.

3. Filltankwithfreshgasoline.

4. Refillwithfreshfuel.

5. Cleanor replaceair cleanerfilter.

6. Alwaysrunengineatfullthrottle.

7. ContactyourSearsParts& RepairCenter.

1. Fillenginewithproperamountand typeofoil.

2. Cleandebrisfromaroundtheengine'scoolingfins

andblowerhousing.

1. Removesparkplugandadjustgap.

1. Replacesparkplugandadjustgap.

2. Replaceair cleanercartridge.

1. Stopengineimmediatelyanddisconnectsparkplug

wire.ContactyourSearsParts& RepairCenter.

1. Stopengineimmediatelyanddisconnectspark

plugwire.Cleanflailscreenandinsideofdischarge

opening.

2. Stopengineanddisconnectsparkplugwire.

Removelodgedobject.

3. Alwaysrunengineatfullthrottle.

1. Alwaysrunengineatfullthrottle.

2. Replaceor sharpenchipperbladeor contactyour

SearsParts& RepairCenter.

Craftsman Chipper Shredder -- Model No. 247.77638

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