Operator's Manual
I:Rl FI'SlVl N
1450 Series Engine
Chipper Shredder
Model No. 247.77605
Before using this equipment,
read this manual and follow
all safety rules and operating
instructions.
* SAFETY
* ASSEMBLY
* OPERATION
* MAINTENANCE
* PARTS LIST
* ESPANOL
Sears Brands Management Corporation, Hoffman Estates, iL 60179 U.S.A.
Visit our website: www.craftsman.com
FORMNO.769-07077A
04/23/2012
Warranty Statement .................................. Pac
Safe Operation Practices .......................... Pac
Safety Labels ............................................ Pac
Assembly .................................................. Pac
Operation .................................................. Pac
Service and Maintenance ......................... Pac
Off-Season Storage .................................. Pac
e2
e3
e7
e8
e12
e14
e18
Trouble Shooting ....................................... Page 19
Parts List ................................................... Page 20
Label Map ................................................. Page 33
Repair Protection Agreement ................... Page 36
Espa_ol ..................................................... Page 37
Service Numbers ...................................... Back Cover
CRAFTSMAN TWO YEAR FULL WARRANTY
FORTWOYEARSfromthedateofpurchase,thisproductiswarrantedagainstanydefectsinmaterialor workmanship.A defec-
tiveproductwillreceivefreerepairor replacementifrepairisunavailable.
Forwarrantycoveragedetailstoobtainfreerepairor replacement,visitthewebsite:www.craftsman.com
ThiswarrantycoversONLYdefectsinmaterialandworkmanship.WarrantycoveragedoesNOTinclude:
• Expendableitemsthatcanwearoutfromnormalusewithinthewarrantyperiod,suchastheblades, sparkplug,air
cleaner,flailscreenand catcherbag.
• Productdamageresultingfromuserattemptsatproductmodificationor repairorcausedbyproductaccessories.
• Repairsnecessarybecauseofaccidentor failuretooperateor maintaintheproductaccordingtoall suppliedinstruc-
tions.
• Preventivemaintenance,or repairsnecessarydueto improperfuelmixture,contaminatedorstalefuel.
Thiswarrantyisvoidif thisproductiseverusedwhileprovidingcommercialservicesor ifrentedtoanotherperson.
Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhichvaryfromstatetostate.
SearsBrands ManagementCorporation, 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 theuseofthispowermachineto
personswhoread,understandandfollowthewarningsand instruc-
tionsinthismanualandon 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.
• 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.
• Ifitbecomesnecessaryto 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.Contact1-800-4-MY-HOMEforthelocation
ofthenearestSearsParts& RepairServiceCenter.
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.
• Ifthefueltankhasto bedrained,do thisoutdoors.
• Observeproperdisposallawsand regulationsforgas,oil,etc.to
protecttheenvironment.
• AccordingtotheConsumerProductsSafetyCommission(CPSC)
andtheU.S.EnvironmentalProtectionAgency(EPA),thisproduct
hasan AverageUsefulLifeofseven(7)years,or 60hoursof
operation.AttheendoftheAverageUsefulLife 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,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 sparkarrestormeetingapplicablelocalor
statelaws(ifany)
Ifa sparkarrestorisused,itshouldbe maintainedin effectiveworking
orderbytheoperator.IntheStateofCaliforniatheaboveis required
bylaw(Section4442oftheCaliforniaPublicResourcesCode).Other
statesmayhavesimilarlaws.Federallawsapplyonfederallands.
A sparkarrestorforthemufflerisavailablethroughyournearestSears
PartsandRepairServiceCenter.
SAFETY SYMBOLS
Thispagedepictsanddescribessafetysymbolsthatmayappearonthisproduct. Read,understand,andfollowall instructionson themachine
beforeattemptingtoassembleandoperate.
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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--Restricttheuseofthis powermachineto personswhoread,understandandfollowthe
warningsand instructionsinthis manualandonthemachine.
J
SAVETHESEINSTRUCTIONS!
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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
• Operator'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
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Figure2
8
ATTACHING THE CHUTE DEFLECTOR
1. A.Removethewingknobsfromeachsideofthelowerimpeller
housing.SeeFigure3.
ATTACHING THE CHIPPER CHUTE
1. A. Removethethreecuppedwashersand hexnutsfromweld
studsaroundtheopeningonthesideoftheimpellerhousing.
SeeFigure5.
.
f
Figure3
B.Removethehexlocknut,spacers,andhexboltfromthetopof
theimpellerhousing.
A.Alignthechutedeflectorin positiononthedischargeopening
andinserthexboltwithspacerthroughhingeonchute
deflector(spacersfit insideofhinges).SeeFigure4.
f
Figure5
B.Removethehexbolts,flatwashersandlocknutsfromthetwo
holesontheupperendofthe supportbrace.
A.Alignthechipperchuteovertheweldstuds,sothe slotinthe
bottomofthechuteisfacingdown.SeeFigure6.
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Figure4
Figure6
B.Placesecondspaceroverhexboltinsideotherhingeand
securewithhexlocknut.
C. Securebothsidesofchutedeflectorto impellerhousingusing
wingknobspreviouslyremoved.
B.Securechipperchutewiththethreecuppedwashers(cupped
sideagainstthechipperchute)andhexnutspreviously
removed.Donottightenthenutsatthistime.
9
.
Thechippershredderwasshippedwithoneendofthesupport
bracealreadysecuredtothelowerframe.Loosenbutdo not
removetheboltssecuringthebraceto theframe.
Figure7
A.Aligntheholesinthechutewiththeholesinthetopofthe
braceandattachbracetochipperchutewithhardware
previouslyremoved.Theflatwashersshouldbe placedunder
theboltheadsandagainsttheinsidesurfaceoftheplastic
chipperchute.Tightensecurely.SeeFigure7.
B.Tightentheboltssecuringthesupportbracetotheframe.
C.Tightenthethreenutsontheweldstudsholdingthechipper
chutetotheimpellerhousing.
ATTACHING THE BAG
f
Toattachthebag:
A. Placetheopeningofthebagcompletelyoverthechute
deflector.
B.Pullon thedrawstringuntilthebagistightaroundchute
deflectoropening.
C.Clipdrawstringbackon itself,tightagainstchutedeflectorto
secureintoposition.SeeFigure8.
Figure8
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10
(large) HopperAssembly
ReleaseRod
(small) Chipper Chute
Tamper--=_
GasFill
@
Chute
Deflector
Figure9
Nowthatyouhavesetupyourchippershredderforoperation,get
aquaintedwithits controlsandfeatures.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 fillplug.
2. Withthechippershredderonlevelground,usea funneltoempty
entirecontentsofoil bottleprovidedintotheengine.
3. Replaceoil fillplugandtighten.
Subsequent Uses
Onlyusehighqualitydetergentoil ratedwithAPIserviceclassification
SF,SG,or SH.Selecttheoil'sSAEviscositygradeaccordingtothe
expectedoperatingtemperature.Followthechartbelow.
_older _ 32°F _Warmer'_
OilViscosity Chart
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Alcoholblendedfuels(calledgasoholor usingethanolor methanol)
canattractmoisturewhichleadstoseparationand formationofacids
duringstorage.Acidicgascandamagethefuelsystemofanengine
whileinstorage.
Toavoidengineproblems,thefuelsystemshouldbeemptiedbefore
storagefor30daysorlonger.Drainthegastank,starttheengine
andletitrununtilthefuellinesandcarburetorare empty.Use
freshfuelnextseason.See STORAGEInstructionsforadditional
information.
Neveruseengineorcarburetorcleanerproductsinthefueltankor
permanentdamagemayoccur.
NOTE:Checkthefuellevelperiodicallytoavoidrunningoutofgaso-
linewhileoperatingthechippershredder.Iftheunitrunsoutofgasas
itischipping,itmaybe necessarytounclogthedischargeareabefore
itcanbe restarted.RefertoSERVICEANDMAINTENANCEsection.
Althoughmulti-viscosityoils(5W30,10W30,etc.)improvestarting
incoldweather,theywillresultinincreasedoil consumptionwhen
usedabove32°E Checkyourengineoillevelmorefrequentlytoavoid
possibleenginedamagefromrunninglowon oil.
1. Checktheoil levelbyremovingtheoilfillplugand lookinginto
theoil fillhole.Oil shouldbevisibleup tothethreadsof theoil fill
plug,almosttothepointofoverflowing.Fillifnecessary.Capac-
ity isapproximately28 oz.Overfillingcancausea hazardous
situation,be suretowipeup anyspilledor excessoil.
2. Replaceoil fillplugandtighten.
3. Keepoil levelatFULL.Runningtheenginewithtoolittleoil can
resultinpermanentenginedamage.
Gasoline
Useextremecarewhenhandlinggasoline.Gasolineisextremely
flammableandthevaporsareexplosive.Neverfuelmachineindoors
orwhiletheengineishotor running.Extinguishcigarettes,cigars,
pipes,andothersourcesof ignition.
1. Removefuelcapfromthefueltank.
2. Makesurethecontainerfromwhichyouwillpourthegasolineis
cleanandfreefromrustor foreignparticles.Neverusegasoline
thatmaybestalefromlongperiodsofstorageinitscontainer.
Gasolinethathasbeensittingforanyperiodlongerthanfour
weeksshouldbeconsideredstale.
3. Fillfueltankwithclean,fresh,unleadedregulargasolineonly.Do
notusegasolinecontainingMETHANOL.Replacefuelcap.
TO START ENGINE
1. Attachsparkplugwireand rubberboottosparkplug.
2. Filltankto nomorethan1/2inchbelowbottomoffillerneckto
providespaceforfuelexpansion.
3. Turnthefuelshut-offvalvetotheONposition.
4. MovethechokeleverontheenginetoCHOKEI'_1 position.(A
warmenginemaynotrequirechoking.)See Figure10.
5. MovethrottlecontroltoSTART/RUN(Rabbit)_ position.See
Figure10.
6. Standingbehindtheunit,graspstarterhandleand pullropeout
untilyoufeela drag.
f
Figure10
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12
NOTE:Youwillheara noiseastheenginefindsthestartof the
compressioncycle.Thenoiseiscausedbythechippingandshredding
flails,andyouwillhearit untiltheengineimpellerreachesfullspeed.
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
operationorwhileperforminganyadjustmentsor 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.
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
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
Donotusepressurizedairor solventstocleantheaircleaner
cartridge.
Theair cleanerpreventsdamagingdirt, dust,etc.,fromenteringthe
carburetorand beingforcedintotheengineandisimportanttoengine
lifeandperformance.Neverruntheenginewithoutan aircleaner
completelyassembled.
Replacetheaircleanerevery25 hoursofoperation.
1. Loosenscrewsthatholdtheairfiltercover.
2. Opencoverandremoveair filter.See Figure12.
f
Cover
Air Filter
\
y
Figure12
3. Discardold airfilter.
4. installnewairfilter.
5. Closethecoverandtightenscrews.
NOTE:Ifthefilteristornordamagedin anyway,replaceit.
Check Engine Oil
1. Makesureengineislevelandtheareaaroundoil fillcapisclean.
2. Removeoilfillcap.
3. Oilshouldbe nearthetopoftheoil fillcapthreads,almostto the
pointofoverflowing
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. Runtheengineto warmtheoil.
2. WithengineOFFbutstillwarm,disconnectthe sparkplugwire
and keepitawayfromsparkplug.
3. Removeoil draincaplocatedatthebaseoftheengine,anddrain
oil intoan appropriatereceptacle.SeeFigure13.
Oil Drain
End Cap _"
J
Figure13
e
Usedoil isa hazardouswasteproduct.Disposeofusedoil properly.
IDonotdiscardwithhouseholdwaste.Checkwithyourlocalauthori-
_tiesorSearsServiceCenterforsafedisposal/recyclingfacilities.
4. Whenengineisdrainedofall oil,replaceandtightentheoil drain
cap.
5. Withtheenginelevel,refillwith approximately28oz. offreshoil.
Filltheoil upintothethreadsoftheoilfill plug,almosttothepoint
ofoverflowing.
6. Replacetheoilfill plugandwipeupanyoil thatmayhavespilled
or overflowed.
7. Replacesparkplugwirebeforestarting.
15
Service IVluffler
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.
Donotusewatertocleanengineparts.Watercouldcontaminatefuel
system.Usea brushor drycloth.
Carburetor Adjustment
Thecarburetoronthis engineisnotadjustable.
Engine Speed
LUBRICATION
Donot,attempttoaltertheenginespeedbytamperingwiththe
enginesgovernorlinkage.Doingsocouldresultin seriouspersonal
Iinjuryanddamagetotheengine.TheengineRPMhasbeensetat
thefactory.
• 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.
REMOVING THE FLAIL SCREEN
Beforeperforminganytypeofmaintenanceonthemachine waitfor
all partsto stopmovinganddisconnectthesparkplugwire. Failure
tofollowthis instructioncouldresultinpersonalinjuryor property
damage.
Ifthedischargeareabecomesclogged,removetheflailscreenand
cleanareaasfollows:
Stoptheengine.Makecertainthechippershredderhascometo
a completestop.
Disconnectsparkplugwirefromsparkplugandgroundagainst
theengine.
A. Removethebagandtwowingknobsoneachsideofthechute
deflector.SeeFigure14.
.
3.
f
/
s /
s'
/ /
/
//
/
j
Figure14
B.Liftthechutedeflectoruptokeepitoutoftheway.
C.Removethetwo hairpinclipsfromeachclevispinwhich
extendthroughthehousingand removepins.
D.Removetheshredderscreenfrominsidethehousingand
cleanthescreenbyscrapingorwashingwithwater.SeeFig.14.
4. Reinstallthescreen,makingcertaintoreassembletheflailscreen
withthecurvesidedown.
5. Reattachthechutedeflectorwiththehardwarepreviouslyremoved
andconnectthebagto unit.
SHARPENING OR REPLACING CHIPPER
BLADES
1. Disconnectthesparkplugwireandgroundagainsttheengine.
2. Removetheflailscreenasinstructedinthe previoussection.
3. Removethechipperchutebyremovingthreehexnutsand
washers.
4. Removethechipperchutesupportbracefromtheframeby
16
removingthehexbolts.
5. Rotateimpellerassemblybyhanduntilyoulocateone oftwo
chipperbladesin thechipperchuteopening.
6. Removethebladebyremovingtheinternalhexscrews,lock
washers,andhexnutswhichsecureittothe impeller.Retainthe
/
/
Figure15
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'schipperbladesandshredderbladearesharp.Wear
leatherworkglovesto protectyourhands.
SHARPENING OR REPLACING THE
SHREDDER BLADE
1. Stoptheengineandmakecertainthatallmovingpartshave
cometoa completestop.
2. Disconnectthesparkplugwireandgroundagainsttheengine.
3. Lowerthehopperassemblyandplacea blockundertheflailhousing.
4. Removethesix hexlocknutsandflatwashersfromtheweld
studsontheflailhousing.Retainthehardware.
17
5. Carefullyseparatethehopperassemblyfromtheimpelleras-
semblyandremovetheshredderplate.Theshredderplatecanbe
identifiedbyreferringtoitem29 in thepartslist onpage20& 21.
NOTE:Whenreassemblingtheshredderplate,makecertainthe
embossedtabfacesinwardtowardstheimpeller.
6. Removethetwowingknobsthatsecurethechuteddlector and
raisethechute.
7. Inserta 1/2"or 3/4"diameterpipethroughtheshredderscreen
intotheimpellertokeepitfromturningor removetheflailscreen
and inserta pieceofwoodintothechuteopening.
8. A. Removethetwointernalhexscrews,lockwashers,and hex
locknutswhichsecuretheshredderbladetotheimpeller.
B.Removethehexbolt,lockwasher,andflatwasherto
completelyfreeshredderblade.SeeFigure16.
f
Weld
FlailHousing
Figure16
9. Installa replacementblade(PartNo.742-0544)with thehardware
removedearlierorsharpenand replaceexistingblade.
IMPORTANT:Whenreassemblingtheshredderblade,tightencenter
bolttobetween550and700in.-Ibs,andthetwooutsideboltsto
between250and350in.-Ibs.
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.
Neverstorechippershredderwithfuelintankindoorsorinpoorly
ventilatedareaswherefuelfumesmayreachanopenflame,spark,
orpilotlightasonafurnace,waterheater,clothesdryer,orgas
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
Beforeperforminganytyped maintenance/service,disengageall
controlsandstoptheengine.Waituntilallmovingpartshavecometo
acompletestop.Disconnectsparkplugwireandgrounditagainstthe
enginetopreventunintendedstarting.Alwayswearsafetyglassesduring
operationorwhileperforminganyadjustmentsor 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. Waterordirtinfuel system
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. Movethrottleleverto START/RUNposition.
2. MoveCHOKEtotheCHOKEposition.
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. Fillenginewith properamountandtype ofoil.
2. Cleandebrisfromaroundtheengine'scoolingfins
and blowerhousing.
1. Removesparkplugandadjustgap.
1. Replacesparkplugandadjustgap.
2. Replaceair cleanercartridge.
1. Stopengineimmediatelyanddisconnectsparkplug
wire.ContactyourSearsParts& RepairCenter.
1. Stopengineimmediatelyanddisconnectspark
plugwire.Cleanflailscreenandinsided discharge
opening.
2. Stopengineanddisconnectsparkplugwire.
Removelodgedobject.
3. Alwaysrunengineatfullthrottle.
1. Alwaysrunengineatfullthrottle.
2. Replaceor sharpenchipperbladeor contactyour
SearsParts& RepairCenter.
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19
Craftsman Chipper Shredder -- Model No. 247.77605
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