MTD 31A-2M1A799 Owner’s Manual

Operator's Manual
CRRFr MRN
21" SNOW THROWER
Model No. 247.88704
CAUTION: Before using this product, read this
manual and follow all safety rules and operating
Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.
Visit our website: www.craftsman.com FORMNO.769-04080
o SAFETY
ASSEMBLY
OPERATION
MAINTENANCE PARTS LIST
o ESPANOL
2/6/2009
WarrantyStatement..................................Page2
SafeOperationPractices..........................Pages3-5
SafetyLabels............................................Page6
Assembly..................................................Pages7-8
Operation..................................................Pages10-12
ServiceandMaintenance.........................Pages13-17
CRAFTSMAN LiMiTED WARRANTY
Two Years on Snow Thrower
Whenoperatedand maintainedaccordingtoallsuppliedinstructions,ifthissnowthrowerfailsdueto a defectinmaterialorworkmanshipwithin twoyearsfromthedateor purchase,call 1-800-4-MY-HOME®toarrangeforfree repair.
Thiswarrantyappliesforonly90daysfromthedateof purchaseifthissnowthroweriseverusedfor commercialor rentalpurposes.
Duringthefirstyearofpurchase,therewillbenochargefor warrantyserviceinyourhome.Foryourconvenience,in-homewarrantyservicewill stillbeavailableafterthe firstyearof purchase,butatripchargewillapply.Thischargewillbe waivedif youtransportthesnowthrowertoan authorizedCraftsmandrop-offlocation.Forthenearestauthorizedlocation,call 1-800-4-MY-HOME®.
Thiswarranty coversONLYdefects in material andworkmanship. Searswill NOTpayfor:
Expendableitemsthatbecomewornduringnormaluse,includingbutnot limitedtoskidshoes,shaveplate,shearpins,sparkplug,air cleaner,belts,andoil filter.
Standardmaintenanceservicing,oilchanges,ortune-ups. Tirereplacementorrepaircausedbypuncturesfromoutsideobjects,suchas nails,thorns,stumps,or glass.
Tireor wheelreplacementor repairresultingfromnormalwear,accident,orimproperoperationor maintenance. Repairsnecessarybecauseof operatorabuse,includingbutnot limitedtodamagecausedbyimpactingobjectsthatbendthe frameor
crankshaft,orover-speedingtheengine.
Repairsnecessarybecauseof operatornegligence,includingbutnotlimitedto,electricalandmechanicaldamagecausedbyimproper storage,failureto usethepropergradeandamountof engineoil,or failureto maintaintheequipmentaccordingtothe instructionscontained
intheoperator'smanual.
Engine(fuelsystem)cleaningorrepairscausedbyfuel determinedto becontaminatedoroxidized(stale).Ingeneral,fuelshouldbeused
within30 daysof itspurchasedate. Normaldeteriorationandwearoftheexteriorfinishes,orproductlabelreplacement.
Off-SeasonStorage..................................Page18
TroubleShooting.......................................Page19
PartsList...................................................Page20-27
RepairProtectionAgreement...................Page31
Espa_ol.....................................................Page32
ServiceNumbers......................................BackCover
Thiswarrantyappliesonlywhilethisproductis usedinthe UnitedStates.
Thiswarrantygivesyouspecificlegalrights,andyou mayalsohaveotherrightswhichvaryfromstatetostate.
EngineOilType: SAE5W-30 EngineOilCapacity: 20ounces
FuelCapacity: 2 Quarts SparkPlug: TorchF6RTC SparkPlugGap: .020"-.030"
©SearsBrands,LLC
Sears, Roebuckand Co.,Hoffman Estates, IL 60179
Model Number.................................................................
Serial Number .................................................................
Dateof Purchase.............................................................
Recordthemodelnumber,serialnumber
anddateof purchaseabove
2
Thissymbolpointsout importantsafetyinstructionswhich,ifnot followed,couldendangerthepersonalsafetyand/orpropertyof yourselfandothers. Readandfollowall instructionsin thismanual
beforeattemptingtooperatethismachine.Failuretocomplywith
theseinstructionsmayresultin personalinjury.Whenyouseethis
symbol,HEEDITSWARNING!
Thismachinewasbuiltto beoperatedaccordingtothesafeopera- tionpracticesinthis manual.Aswithanytypeof powerequipment, carelessnessorerroron thepartof theoperatorcanresultin serious injury.Thismachineiscapableofamputatingfingers,hands,toes andfeetandthrowingdebris.Failuretoobservethefollowingsafety instructionscouldresultin seriousinjuryor death.
CALIFORNIA PROPOSITION 65
EngineExhaust,someof itsconstituents,andcertainvehicle componentscontainoremitchemicalsknowntoStateofCalifornia tocausecancerandbirthdefectsorotherreproductiveharm,
TRAiNiNG
Read,understand,andfollowall instructionsonthe machineand in themanual(s)beforeattemptingtoassembleandoperate.
Failuretodo socan resultinseriousinjurytothe operatorand/ orbystanders.Keepthismanualin a safeplaceforfutureand regularreferenceandfor orderingreplacementparts.Forques-
tionscall,1-800-659-5917.
Befamiliarwithall controlsandtheir properoperation.Knowhow tostopthe machineanddisengagethemquickly.
Neverallowchildrenunder14yearsofageto operatethis machine.Children14andover shouldreadandunderstandthe
instructionsandsafeoperationpracticesin thismanualandon themachineandbe trainedandsupervisedbyanadult.
Neverallowadultsto operatethismachinewithoutproper instruction.
Thrownobjectscancauseseriouspersonalinjury.Planyour snow-throwingpatterntoavoiddischargeof materialtoward roads,bystandersandthe like.
Keepbystanders,petsandchildrenat least75feetfromthe machinewhileitisinoperation.Stopmachineifanyoneenters
thearea.
Exercisecautiontoavoidslippingor falling,especiallywhen operatinginreverse.
Your Responsibility--Restrict the useof this powermachineto personswhoread,understandandfollowthewarningsand instruc-
tionsin thismanualandon themachine,
SAVE THESE INSTRUCTIONS!
PREPARATION
Thoroughlyinspecttheareawheretheequipmentis tobeused.
Removeall doormats,newspapers,sleds,boards,wiresandother
foreignobjects,whichcouldbe trippedoverorthrownbythe auger/
impeller.
Alwayswearsafetyglassesoreyeshieldsduringoperationand whileperformingan adjustmentor repairtoprotectyoureyes. Thrownobjectswhichricochetcancauseseriousinjurytothe
eyes.
Donot operatewithoutwearingadequatewinteroutergarments.
Donot wearjewelry,longscarvesorotherlooseclothing,which couldbecomeentangledinmovingparts.Wearfootwearwhich willimprovefootingonslipperysurfaces.
Usea groundedthree-wireextensioncordand receptacleforall
machineswithelectricstartengines.
Disengageall controlleversbeforestartingtheengine.
Neverattempttomakeanyadjustmentswhileengineis running, exceptwherespecificallyrecommendedintheoperator'smanual.
Letengineandmachineadjustto outdoortemperaturebefore
startingtoclearsnow.
3
SafeHandling of Gasoline Toavoidpersonalinjuryor propertydamageuseextremecarein
handlinggasoline.Gasolineisextremelyflammableandthe vaporsare explosive.Seriouspersonalinjurycanoccurwhengasolineis spilled onyourselforyourclotheswhichcan ignite.Washyourskinand changeclothesimmediately.
Useonlyanapprovedgasolinecontainer.
Extinguishall cigarettes,cigars,pipesandothersources ofignition.
Neverfuelmachineindoors.
Neverremovegascapor addfuelwhiletheengineis hot or running.
Allowenginetocoolat leasttwo minutesbeforerefueling.
Neveroverfillfueltank.Filltanktono morethan1/2inch belowbottomoffiller neckto providespaceforfuel
expansion.
Replacegasolinecapandtightensecurely.
Ifgasolineisspilled,wipeit offtheengineandequipment. Movemachinetoanotherarea.Wait5 minutesbefore
startingtheengine.
Neverstorethemachineor fuel containerinsidewhere thereis anopenflame,sparkor pilotlight (e.g.furnace,
waterheater,spaceheater,clothesdryeretc.).
Allowmachinetocoolat least5 minutesbeforestoring.
Neverfillcontainersinsidea vehicleor ona truckor trailer bedwitha plasticliner.Alwaysplacecontainersonthe
groundawayfromyourvehiclebeforefilling.
If possible,removegas-poweredequipmentfromthetruck ortrailerand refueliton theground.If thisisnotpossible, thenrefuelsuchequipmentonatrailerwitha portable container,ratherthanfromagasolinedispensernozzle.
Keepthenozzleincontactwiththe rimofthe fueltankor containeropeningatalltimesuntilfuelingiscomplete.Do notuse a nozzlelock-opendevice.
OPERATION
Donot puthandsorfeetnear rotatingparts,in theauger/impeller housingorchuteassembly.Contactwiththe rotatingpartscan amputatehandsandfeet.
Theauger/impellercontrolleveris a safetydevice.Neverbypass itsoperation.Doingsomakesthe machineunsafeandmaycause personalinjury.
Thecontrolleversmustoperateeasilyinbothdirectionsand automaticallyreturntothedisengagedpositionwhenreleased.
Neveroperatewitha missingor damagedchuteassembly.Keep all safetydevicesinplaceandworking.
Neverrunanengineindoorsorina poorlyventilatedarea.Engine exhaustcontainscarbonmonoxide,anodorlessanddeadlygas.
Donotoperatemachinewhileundertheinfluenceofalcoholor drugs.
Mufflerandenginebecomehotandcancausea burn.Donot touch.Keepchildrenaway.
Exerciseextremecautionwhenoperatingonorcrossinggravel surfaces.Stayalertforhiddenhazardsortraffic.
Exercisecautionwhenchangingdirectionandwhileoperatingon slopes.
Planyoursnow-throwingpatternto avoiddischargetowards windows,walls,carsetc.Thus,avoidingpossibleproperty damageorpersonalinjurycausedby a ricochet.
Neverdirectdischargeat children,bystandersand petsor allow anyoneinfrontof themachine.
Donotoverloadmachinecapacitybyattemptingtoclearsnowat toofastof a rate.
Neveroperatethismachinewithoutgoodvisibilityorlight.Always be sureof yourfootingandkeepafirmholdon the handles.Walk,
neverrun.
Disengagepowertotheauger/impellerwhentransportingor not in use.
Neveroperatemachineathightransportspeedsonslippery surfaces.Lookdownand behindandusecarewhenbackingup.
Ifthemachineshouldstartto vibrateabnormally,stoptheengine, disconnectthe sparkplugwireandgrounditagainstthe engine.
Inspectthoroughlyfordamage.Repairanydamagebefore
startingandoperating.
Disengageall controlleversandstopenginebeforeyouleave theoperatingposition(behindthehandles).Waituntiltheauger/ impellercomestoa completestopbeforeuncloggingthechute assembly,makinganyadjustments,or inspections.
Neverputyourhandinthedischargeorcollectoropenings.Do notunclogchuteassemblywhileengineis running.Shutoff engineand remainbehindhandlesuntilall movingpartshave stoppedbeforeunclogging.
Useonlyattachmentsandaccessoriesapprovedbythemanufac- turer(e.g.wheelweights,tirechains,cabsetc.).
Whenstartingengine,pullcord slowlyuntilresistanceisfelt,then pull rapidly.Rapidretractionofstartercord(kickback)willpull handandarmtowardenginefasterthanyoucanlet go.Broken bones,fractures,bruisesorsprainscouldresult.
Ifsituationsoccurwhichare notcoveredinthis manual,use care andgoodjudgment.ContactCustomerSupportforassistance
andthenameofyour nearestservicingdealer.
CLEARING A CLOGGED DISCHARGE CHUTE
Handcontactwiththe rotatingimpellerinsidethedischargechute
is the mostcommoncauseofinjuryassociatedwithsnowthrowers.
Neveruseyourhandtocleanoutthedischargechute.
Toclear thechute:
1. SHUTTHEENGINEOFF!
2. Wait 10secondstobe suretheimpellerbladeshavestopped
rotating.
3. Alwaysusea clean-outtool,notyourhands.
4
MAINTENANCE & STORAGE
Nevertamperwithsafetydevices.Checktheirproperoperation
regularly.Refertothemaintenanceandadjustmentsectionsof thismanual.
Beforecleaning,repairing,or inspectingmachinedisengageall controlleversandstoptheengine.Waituntilthe auger/impeller cometoa completestop.Disconnectthe sparkplugwireand groundagainsttheengineto preventunintendedstarting.
Checkboltsand screwsforpropertightnessatfrequentintervals tokeepthemachineinsafeworkingcondition.Also,visually inspectmachineforanydamage.
Donotchangetheenginegovernorsettingor over-speedthe engine.Thegovernorcontrolsthe maximumsafeoperatingspeed ofthe engine.
Snowthrowershaveplatesandskidshoesaresubjecttowear anddamage.Foryoursafetyprotection,frequentlycheckall componentsand replacewithoriginalequipmentmanufacturer's (OEM)partsonly."Useofpartswhichdo notmeetthe original equipmentspecificationsmayleadto improperperformanceand compromisesafety!"
Checkcontrolleversperiodicallytoverifytheyengageanddisen- gageproperlyandadjust,ifnecessary.Refertotheadjustment sectioninthisoperator'smanualforinstructions.
Maintainorreplacesafetyandinstructionlabels,asnecessary.
Observeproperdisposallawsand regulationsfor gas,oil,etc. to protecttheenvironment.
Priorto storing,runmachineafew minutestoclearsnowfrom machineandpreventfreezeupof auger/impeller. Neverstorethemachineorfuel containerinsidewherethereisan
openflame,sparkorpilot lightsuchas a waterheater,furnace, clothesdryeretc.
Alwaysrefertothe operator'smanualfor properinstructionson off-seasonstorage.
Checkfuelline,tank, cap,andfittingsfrequentlyforcracksor leaks.Replaceif necessary.
Donotcrankenginewithsparkplugremoved. AccordingtotheConsumerProductsSafetyCommission(CPSC)
andtheU.S.EnvironmentalProtectionAgency(EPA),thisproduct hasan AverageUsefulLifeof seven(7)years,or60 hoursof operation.At theendoftheAverageUsefulLifehavethemachine inspectedannuallybyan authorizedservicedealerto ensurethat allmechanicalandsafetysystemsareworkingproperlyand not wornexcessively.Failureto do socanresultinaccidents,injuries
ordeath.
DO NOT MODIFY ENGINE
Toavoidseriousinjuryor death,do notmodifyengineinanyway. Tamperingwiththegovernorsettingcanleadto a runawayengineand causeitto operateat unsafespeeds.Nevertamperwithfactorysetting ofenginegovernor.
NOTICE REGARDING EMISSIONS
EngineswhicharecertifiedtocomplywithCaliforniaandfederal
EPAemissionregulationsfor SORE(SmallOff RoadEquipment)are certifiedto operateonregularunleadedgasoline,and mayinclude thefollowingemissioncontrolsystems:EngineModification(EM),
OxidizingCatalyst(OC),SecondaryAirInjection(SAI)and ThreeWay
Catalyst(TWO)if soequipped.
SPARK ARRESTOR
Thismachineisequippedwithaninternalcombustionengineand shouldnotbe usedonor nearanyunimprovedforest-covered, brush-coveredorgrass-coveredlandunlesstheengine'sexhaust systemisequippedwitha sparkarrestermeetingapplicablelocalor statelaws(if any)
Ifa sparkattesterisused,itshouldbemaintainedin effectiveworking orderbytheoperator.Inthe StateofCaliforniatheaboveis required
bylaw (Section4442ofthe CaliforniaPublicResourcesCode).Other
statesmayhavesimilarlaws. Federallawsapplyonfederallands. A sparkarresterforthemuffleris availablethroughyournearestSears
PartsandRepairServiceCenter.
SAFETY SYMBOLS
Thispagedepictsanddescribessafetysymbolsthatmayappearonthisproduct. Read,understand,andfollowallinstructionson themachine beforeattemptingtoassembleandoperate.
READ THE OPERATOR'S MANUAL(S)
i
i
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
WARNING-- ROTATING BLADES
Keep hands out of inlet and discharge openings while machine is running. There are rotating blades
inside
WARNING-- ROTATING AUGER
Do not put hands or feet near rotating parts, in the auger/impeller housing or chute assembly.
Contact with the rotating parts can amputate hands and feet.
WARNING--THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury.
WARNING--GASOLINE ISFLAMMABLE Allow the engine to cool at least two minutes before refueling.
WARNING-- CARBON MONOXIDE
Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
WARNING-- ELECTRICAL SHOCK
Do not use the engine's electric starter in the rain
6
NOTE:Referencesto rightorleft sideofthesnowthrowerare determinedfrombehindtheunitinthe operatingposition(standing directlybehindthesnowthrower,facingthe handlepanel).
REMOVING FROM CARTON
1. Cutthecornersofthecartonandlaythesidesflaton theground. Removeanddiscardallpackinginserts.
2. Movethesnowthroweroutofthecarton.
3. Makecertainthecartonhasbeencompletelyemptiedbefore discardingit.
ASSEMBLY
Positioning the Upper Handle
1. Pivottheupperhandleintotheoperatingpositionmakingsurenotto pinchthe cableinthe process,asillustratedinFigure1,untilit clicksintoplace.
J
Figure1
2. Tightenthewingknobstosecurethehandleinplace. See Figure2.
f,
J
Figure2
SETUP
Fuel Recommendations
Useautomotivegasoline(unleadedor lowleadedtominimizecombus- tionchamberdeposits)witha minimumof87 octane.Gasolinewith up to 10%ethanolor15%MTBE(MethylTertiaryButylEther)canbe used.Neverusean oil/gasolinemixtureordirty gasoline.Avoidgetting dirt, dust,or waterinthefuel tank.DO NOTuseE85gasoline.
Refuelina well-ventilatedareawiththeenginestopped.Donot
smokeorallowflamesor sparksintheareawherethe engineis
refueledor wheregasolineisstored.
Donotoverfillthefueltank.Afterrefueling,makesurethetank
capis closedproperlyandsecurely.
Becarefulnotto spillfuelwhenrefueling.Spilledfuel orfuelvapor
mayignite.Ifanyfuelis spilled,makesuretheareaisdry before startingthe engine.
Avoidrepeatedorprolongedcontactwithskinor breathingof
vapor.
Adding Fuel
Useextremecarewhenhandlinggasoline.Gasolineisextremely
flammableandthevaporsareexplosive.Neverfuelthe machine indoorsorwhiletheengineis hotorrunning.Extinguishcigarettes, cigars,pipesandothersourcesofignition.
Alwayskeephandsandfeetclear ofequipmentmovingparts.Donot usea pressurizedstartingfluid.Vaporsareflammable.
1. Removethegascap,checkthefuellevelandaddfuelif necessary.
7
Adding Oil
Theengineis shippedwithoutoil intheengine.Youmustfillthe enginewithoilbeforeoperating.Runningthe enginewithinsufficient oilcancauseseriousenginedamageandvoidthe productwarranty.
1. Removetheoil fillercap/dipstickandwipethedipstickclean.See Figure3.
Level
ADJUSTMENTS
Chute Assembly
Thepitchof thechuteassemblycontrolstheangleat whichthesnow
isthrown.
1. Loosenthewingknobfoundonthe left sideofthe chuteassem- blyandpivotthe upperchuteupwardordownwardtothedesired pitch.Retightenthe wingknobbeforeoperatingthesnowthrower. SeeFigure5.
f --,,
Figure3
NOTE:Donotscrewinthedipstickwhencheckingtheoil level.
2. Slowlyaddoil untiltheoillevelregistersbetweenhigh(H)andlow (L)on thedipstick,Figure4. RefertotheServiceandMainte- nancesectionforthe correctoilviscosityandengineoil capacity.
Figure5
Positionthechuteassemblyopeningbyusingthechutehandleto
throwthesnowinthedesireddirection.SeeFigure5.
,. j
Figure4
NOTE:Donotoverfill.Overfillingtheenginewithoil mayresultinthe enginesmoking,hardstartingor sparkplugfouling.
8
This page left intentionallyblank.
9
RecoiJ Starter
Gas Ca
er ControJ
Chute Assernbl,
Shave Plate
Auger
Nowthat youhavesetupyoursnowthrower,it's importanttobecome acquaintedwith itscontrolsandfeatures.RefertoFigure10.
CHOKE LEVER
Activatingthechokecontrolclosesthechokeplateoncarburetorand aidsinstartingengine.
Pressingprimerforcesfueldirectlyintoengine'scarburetor
PRIMER
toaidin cold-weatherstarting.
IGNITION KEY
Theignitionkeyisa safetydevice.It mustbefully insertedinorderfortheengineto start.Removethe ignitionkeywhenthesnowthrowerisnotin use.
HandJe
Figure10
f
Chok
Exhaust
Oil FillCap.._._
w/Dipstick
Oil Drain/
SparkPlug/ "_
Boot
_\/\_l//_ Recoil
J; %/'Starter
Hand_
RECOIL STARTER
Thestarterhandleisusedtostart theengine.
GASOLINE CAP
Removethegascaptoaddfuel.
AUGER
Whenengaged,theaugersrotationdrawssnowintotheaugerhousing andthrowsit outthe dischargechute.Rubberpaddlesonthe augers alsoaidin propellingthe snowthrowerastheycomeincontactwith thepavement.
AUGER CONTROL
Locatedontheupperhandle,theaugercontrolhandleisusedto engageanddisengagedrivetothe auger.Squeezethecontrolhandle againsttheupperhandleto engagetheauger;releaseittodisengage.
NOTE:Donotturntheignitionkeyinan attemptto start theengine.Doingso maycauseitto break.
Meets ANSI Safety Standards
CraftsmanSnowThrowersconformtothe safetystandardofthe AmericanNationalStandardsInstitute(ANSi).
10
CHUTE ASSEMBLY
Rotatethedischargechuteto theleftor rightusingthechutehandle. Thepitchof thedischargechutecontrolstheangleat whichthesnow isthrown.Loosenthewingknobontheside ofthedischargechute beforepivotingthedischargechuteupwardordownward.Retighten theknoboncethe desiredpositionhasbeenachieved.
SHAVE PLATE
Theshaveplate maintainscontactwiththepavementasthe snow throwerispropelled,allowingsnowclosetothe pavement'ssurfaceto bedischarged.
BEFORE STARTING THE ENGINE
machineandinthismanualbeforeo
1. Thesparkplugwirewasdisconnectedfor safety.Attachthespark plugwireto thesparkplugbeforestarting.
STARTING THE ENGINE
)ressurizedstartin{ flammable.
5. Iftheengineiswarm,pushthe primerbuttononlyonce. NOTE:Alwayscovertheventholeintheprimerbuttonwhenpushing.
Additionalprimingmaybe necessaryforthefirststartifthe tempera- tureis below15° R
6. Graspthestarterhandleandpulltheropeoutslowly,until itpulls
slightlyharder.Letthe roperewindslowly.
7. Pullthestarterhandlerapidly.Donotallowthehandleto snap
back.Allowit to rewindslowlywhilekeepinga firmholdon the handle.
8. Astheenginewarmsupandbeginstooperateevenly,slidethe
chokeleverslowlytothe 1/2chokeposition.Whentheengine
| a
beginsto runsmoothly,movethechoketothe OFF_ _position. Iftheenginefails, returnto FULLI_1 choke,thenslowlymoveto
t÷II
1/2chokethentheOFF_ _position.
STOPPING THE ENGINE
1. Runthe enginefora fewminutesbeforestoppingto helpdryoff
anymoistureontheengine.
2. Tostoptheengineremovetheignitionkeyandstoreitin a safe
place.
3. Wipeallthesnowandmoistureawayfromtheenginecontrols
area.
Toavoidcarbonmonoxidepoisoning,makesuretheengineis outdoorsina well-ventilatedarea.
1. Insertthe ignitionkeyintotheslot.SeeFigure11.Donotattempt toturnthekey.Doingso maycauseittobreak.
r
,%
Figure11
Muffler,engineandsurroundingareasbecomehotandcan causea
burn.Becarefulanddonot touchwhenthe,/are hot.
ENGAGING THE AUGERS
Engagethe augerbysqueezingtheaugercontrolagainsttheupper handle.Releasethecontrolto stoptheaugers.
ENGAGING THE DRIVE
Liftup slightlyonthe handletoallowthe rubberpaddlesontheauger tocontactthe pavementand propelthe snowthrowerforward.Pushing downwardonthehandlewill raisetheaugersoffthe groundandstop
theforwardmotion.
NOTE:Excessiveupwardpressureonthe handlewillresultin
prematureweartotherubberaugerpaddles,whichisnotcoveredby thewarranty.
2. MovethechokelevertotheFULLI_1 chokeposition(cold enginestart).
I II
3. If theengineiswarm,placethechokeintheOFFi I position insteadof FULL.
4. Pushthe primerfiveto seven(5-7)times,makingsuretocover theventholewhenpushing.
11
Thispageleftintentionallyblank.
12
MAINTENANCE SCHEDULE
Beforeperforminganytypeofmaintenance/service,disengageall controlsandstoptheengine.Waituntilallmovingpartshavecometo acompletestop.Disconnectsparkplugwireandgrounditagainstthe enginetopreventunintendedstarting.Alwayswearsafetyglassesduring operationorwhileperforminganyadjustmentsorrepairs.
Eachuse 1. Engineoillevel.
2. Snowthrowerandexhaust
1. Check
2. Clean
Followthemaintenanceschedulegivenbelow.Thischartdescribes serviceguidelinesonly.UsetheServiceLogcolumntokeeptrackof
completedmaintenancetasks.To locate the nearest SearsService
Centeror to scheduleservice,simplycontactSearsat 1-800-4-MY-HOME@.
= =
area.
1st5 hours 1. Engineoil. 1. Change. Every5hours 1. Engineoil. 1. Check.
2. Exhaustarea. 2. Clean.
25 hours 1. Sparkplug. 2. Check.
Everyseason/50hours 1. Engineoil 1. Change Everyseason/lO0hours 1. Sparkplug 1. Clean,replace,re-gap Everyseason/Before 1. Pivotpoints 1. Lubricate
storage 2. Controlhandle 2. Lubricate
3. Extensionspring 3. Lubricate
ENGINE MAINTENANCE
.
Removetheoildrainplug,Figure12.
f
ine maintenance.
Periodicinspectionandadjustmentof theengineisessentialifhigh levelperformanceistobemaintained.Regularmaintenancewillalso ensurealongservicelife.Therequiredserviceintervalsandthetype ofmaintenanceto beperformedaredescribedinthetableabove. Followthehourlyor calendarintervals,whicheveroccurfirst. More frequentserviceisrequiredwhenoperatinginadverseconditions.
Changing Engine Oil Theengineoil shouldbechangedafterthe firstfivehoursof useand
thenoncea seasonor afterevery50 hoursof use. NOTE:Checktheoil levelbeforeeachuseandaftereveryfivehours
ofoperationtobesurethecorrectoil levelismaintained.Referto CheckingOilLevelintheOperationSection.
1. Drainfuelfromthetankbyrunningtheengineuntilthefueltankis empty.Besurethe fuelfill capissecure.
2. Placea suitableoilcollectioncontainerundertheoil drainplug.
Figure12
4. Tiptheenginetodrainoilintothe container.Usedoil mustbe disposedofat a propercollectioncenter.
5. Reinstallthe drainplugandtightenitsecurely.
6. Refillwiththerecommendedoilandchecktheoillevel;refertoAdding Oil intheOperationSectionforinstructions..
7. Reinstallthe oil fillercap/dipsticksecurely.
13
Thoroughlywashyourhandswithsoapandwaterassoonas possibleafterhandlingusedoil.
NOTE:Pleasedisposeofusedmotoroil ina mannerthatisfriendlyto theenvironment.Takeit toa recyclingcenteror othercollectioncenter. Oil Recommendations
Whenaddingoilto theengine,refertotheviscositychartbelow (Figure13).Engineoilcapacityis600 rnl(approx.20 oz.). Donot over-fill.Usea4-stroke,oranequivalenthighdetergent,premiumqual- ity motoroilcertifiedto meetor exceedU.S.automobilemanufacturer's requirementsfor serviceclassificationSG,SRMotoroils classifiedSG,
SFwill showthisdesicnationonthecontainer.
DONOTuse non-detergentoil or 2-strokeengineoil.Itcouldshorten theengine'sservicelife.
f,
m m
Synthetic
Removethesparkplugbootand usea sparkplugwrenchto removetheplug,Figure14.
©
Spark Plug Boot
Figure14
Visuallyinspectthe sparkplug.Discardthe sparkplugif thereis anyapparentwear,oriftheinsulatoriscrackedorchipped.Clean thesparkplugwitha wirebrushifit istobe reused.
Measurethepluggapwithafeelergauge.Correctasnecessaryby bendingthe sideelectrode,Figure15.Thegapshouldbesetto .02-.03inches(0.60-0.80ram).
(%-40 o -20o 0o 200 400 (oc) -30° -20° -10° 0°
Figure13
Spark Plug
cranktheen(inewiththe sark__ removed.
Iftheenginehasbeenrunning,themufflerwillbe veryhot.Becareful notto touchthemuffler.
Thesparkplugshouldbecheckedevery25hoursandchangedonce a seasonorevery100hours.Toensureproperengineoperation,the sparkplugmustalso beproperlygappedandfree ofdeposits.
Electrode
_==== .02=.03in.
(0.60=0.80ram)
Figure15
14
4. Checkthatthesparkplugwasherisingoodconditionandthreadthe sparkplugin byhandto preventcross-threading.
5. Afterthe sparkplugisseated,tightenwitha sparkplugwrenchto compressthewasher.
NOTE:Wheninstallinga newsparkplug,tighten1/2-turnafterthe sparkplugseatsto compressthewasher.Whenreinstallinga used sparkplug,tighten1/8-to 1/4-turnafterthesparkplugseatsto
corn_ressthewasher.
becomever hotandcan damac me.
Cleaning the Engine Iftheenginehasbeenrunning,allowitto coolforatleasthalfan hour
beforecleaning.Periodicallyremovedirtbuild-upfromengine.
Donot spraytheenginewithwaterto cleanitbecausethewater couldcontaminatethefuel.Usinga gardenhoseor pressurewashing
Iequipmentcanalsoforcewaterintothemuffleropening.Waterthat [passesthroughthe muffercan enterthecy nderandcausedamage,j
. Loosenthefourlocknutsandboltswhichsecuretheshave
plateto thehousing.SeeFigure16.Movethe shaveplatetothe desiredpositionandretightenthenutsandboltssecurely.
Figure16
Accumulationofdebrisaroundthe mufflercouldcausea fire. Inspect andcleanbeforeeveryuse.
LUBRICATION
Lubricatethepivotpointsonthecontrolhandleandtheextension springat theendof thecontrolcablewitha lightoil onceeveryseason andbeforethesnowthroweris putintostorageattheendof the
season.
ADJUSTMENTS
Shave Plate
Tochecktheadjustmentof theshaveplate,placethemachineona levelsurface.Thewheels,shaveplateandaugersshouldallcontact thelevelsurface.Notethatifthe shaveplateis adjustedtoohigh, snowmayblowundertheaugerhousing.Iftheshaveplatewearsout excessively,orthe snowthrowerdoesnot self-propel,theshaveplate maybetoolowandneedsto beadjusted.
NOTE:Onnewsnowthrowersormachineswitha newshaveplate installed,theaugersmaybeslightlyofftheground.
Toadjustthe shaveplateproceedasfollows:
1. Drainthegasfromthesnowthrower.
2. Pullthestartercorduntil resistanceisfelt. Thentip thesnow throwerbackuntilit restson thehandles.
4. Tipthesnowthrowerbacktotheoperatingpositionandpullthestarter handlea fewtimesto seeifit isdifficultto pull.
5. Ifthestarteris difficultto pull,removethesparkplugand pullthe handleseveraltimestoensurethatanyoiltrappedinthe headis
removed.
Oilmaycomeoutof thesparkplugholewhenitis removedandthe starterhandleis pulled.
6. Inspectthesparkplug.If itiswet,cleanoffanyoil before
re-installing.
15
Control Cable Asa resultof boththecontrolcableandtheaugerdrivebeltstretching
duetowear,periodicadjustmentsmaybenecessary.Iftheauger seemsto hesitatewhenrotating,proceedasfollows:
Theupperholeinthe controlhandleprovidesforanadjustmentin cabletension.Toadjust,disconnectthe endofcontrolcablefromthe bottomholein the controlhandleand reinsertitintheupperhole. Insertthe cablefromtheoutsideas shownin Figure17.
Control
Handle
2. Removethe beltbygraspingit fromthebottomoftheaugerpulley and pullingoutward.
NOTE:Pushdownonthe idlerpullerto releasethebeltfromunderthe beltkeeper.SeeFigure18.
Toreplacethebeltfollowtheseinstructionsand referto Figure19:
/
/
/
/
J
Figure17
Testthesnowthrowerto seeifthere isa noticeabledifference.If aftertheadjustmenttothecontrolcabletheaugerstill hesitateswhen
rotating,seeBeltReplacementforinstructionsonreplacingthebelt.
Chute Assembly
Refertothe Assemblysectionforinstructionsonadjustingthechute assembly.
BELT REPLACEMENT
Auger Drive Belt
1. Removethebeltcoverby removingthefivehex screwsthat secureitto theframe.SeeFigure18.
................Belt Keeper
Figure19
1. Pushdownon theidlerpulley.
2. Positionthebelton topof theaugerpulleyandunderthe belt keeper.
3. Routethebeltaroundtheenginepulley.
4. Pushthebeltoverthebottomoftheaugerpulley.
5. Reinstallthe beltcoverremovedearlier.
Figure18
REPLACING AUGER PADDLES
Thesnowthrowerauger'srubberpaddlesaresubjecttowearand shouldbereplacedifany signsof excessiveweararepresent.
DoNOTallowtheauger'srubberpaddlesto weartothepointwhere
Iportionsof themetalaugeritselfcancomein contactwiththepave- lment.Doingsocan resultin seriousdamageto yoursnowthrower.
Tochangethe rubberpaddles,proceedasfollows:
1. Removetheexistingrubberpaddlesbyunscrewingthe self- tappingscrewswhichsecurethemto theauger.SeeFigure20.
/
......." / +,
............i/." k _\I.........
f
Self-Tappir ..,,
Figure20
2. Securethereplacementrubberpaddlestotheaugerusingthe hardwareremovedearlier.
ToobtainreplacementpaddlescallSearsat 1-800-4-MY-HOME.Ask forpart# 735-04033.
REPLACING SHAVE PLATE
Theshaveplateisattachedtothe bottomoftheaugerhousingand issubjecttowear.It shouldbe checkedperiodically.Therearetwo wearingedgesandtheshaveplatecanbe reversed.
1. Removethefourcarriageboltsandhexlocknutswhichattachit tothe snowthrowerhousing.
2. Reversetheexistingshaveplateor installa one,makingsurethe newshaveplateand makingsuretheheadsof thecarriagebolts areontheinsideofthehousing.
3. Adjusttheshaveplateasinstructedon page14.
4. Tightensecurelyonceadjusted.
Toobtaina newshaveplate,call Searsat 1-800-4-MY-HOME.Askfor part#731-1033
17
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