MTD 31A-2M1A799 Owner's manual

Brand: MTD

Model: 31A-2M1A799

Category: Snow throwers

Type: 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

instructions.

o SAFETY

ASSEMBLY

OPERATION

MAINTENANCE

PARTS LIST

o ESPANOL

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

Visit our website: www.craftsman.com FORMNO.769-04080

2/6/2009

WarrantyStatement..................................Page2

SafeOperationPractices..........................Pages3-5

SafetyLabels............................................Page6

Assembly..................................................Pages7-8

Operation..................................................Pages10-12

ServiceandMaintenance.........................Pages13-17

Off-SeasonStorage..................................Page18

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

PartsList...................................................Page20-27

RepairProtectionAgreement...................Page31

Espa_ol.....................................................Page32

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

CRAFTSMAN LiMiTED WARRANTY

Two Years on Snow Thrower

Whenoperatedand maintainedaccordingtoallsuppliedinstructions,ifthis snowthrowerfailsdueto adefectinmaterialorworkmanshipwithin

twoyearsfromthedateor purchase,call 1-800-4-MY-HOME®toarrangeforfreerepair.

Thiswarrantyappliesforonly90 daysfromthedateof purchaseifthissnowthroweriseverusedforcommercialor rentalpurposes.

Duringthefirstyearofpurchase,therewillbe nochargeforwarrantyserviceinyourhome.Foryourconvenience,in-homewarrantyservicewill

stillbeavailableafterthefirstyearof purchase,buta tripchargewillapply.Thischargewillbe waivedif youtransportthe snowthrowertoan

authorizedCraftsmandrop-offlocation.Forthenearestauthorizedlocation,call 1-800-4-MY-HOME®.

Thiswarranty coversONLYdefects in material andworkmanship. Searswill NOTpayfor:

• Expendableitemsthatbecomewornduringnormaluse,includingbutnotlimitedtoskidshoes,shaveplate,shearpins,sparkplug,air

cleaner,belts,andoil filter.

• Standardmaintenanceservicing,oilchanges,or tune-ups.

Tirereplacementorrepaircausedbypuncturesfromoutsideobjects,suchasnails,thorns,stumps,or glass.

Tireor wheelreplacementor repairresultingfromnormalwear,accident,orimproperoperationor maintenance.

Repairsnecessarybecauseof operatorabuse,includingbutnotlimitedtodamagecausedbyimpactingobjectsthat bendtheframeor

crankshaft,orover-speedingtheengine.

• Repairsnecessarybecauseof operatornegligence,includingbutnotlimitedto,electricalandmechanicaldamagecausedbyimproper

storage,failureto usethepropergradeandamountofengineoil,or failureto maintaintheequipmentaccordingtotheinstructionscontained

intheoperator'smanual.

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

within30 daysof itspurchasedate.

Normaldeteriorationandwearoftheexteriorfinishes,or productlabelreplacement.

Thiswarrantyappliesonlywhilethisproductis usedinthe UnitedStates.

Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhichvaryfromstatetostate.

Sears, Roebuckand Co.,Hoffman Estates,IL 60179

EngineOilType: SAE5W-30

EngineOilCapacity: 20ounces

FuelCapacity: 2 Quarts

SparkPlug: TorchF6RTC

SparkPlugGap: .020"-.030"

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

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

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

Recordthemodelnumber,serialnumber

anddateof purchaseabove

©SearsBrands,LLC

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-

tionpracticesinthis manual.Aswithanytypeof powerequipment,

carelessnessorerroron thepartoftheoperatorcanresultin serious

injury.Thismachineiscapableofamputatingfingers,hands,toes

andfeetandthrowingdebris.Failuretoobservethefollowingsafety

instructionscouldresultin seriousinjuryor death.

Your Responsibility--Restrict theuseofthispowermachineto

personswhoread,understandandfollowthewarningsand instruc-

tionsin thismanualandon themachine,

SAVE THESE INSTRUCTIONS!

TRAiNiNG

• Read,understand,andfollowall instructionson themachineand

in themanual(s)beforeattemptingtoassembleandoperate.

Failuretodo socan resultinseriousinjurytotheoperatorand/

orbystanders.Keepthismanualin a safeplaceforfutureand

regularreferenceandfororderingreplacementparts.Forques-

tionscall,1-800-659-5917.

• Befamiliarwithall controlsandtheirproperoperation.Knowhow

tostopthemachineanddisengagethemquickly.

• Neverallowchildrenunder14yearsofagetooperatethis

machine.Children14andovershouldreadandunderstandthe

instructionsandsafeoperationpracticesin thismanualandon

themachineandbe trainedandsupervisedbyanadult.

• Neverallowadultstooperatethismachinewithoutproper

instruction.

• Thrownobjectscancauseseriouspersonalinjury.Planyour

snow-throwingpatterntoavoiddischargeof materialtoward

roads,bystandersandthelike.

• Keepbystanders,petsandchildrenat least75feetfromthe

machinewhileitisinoperation.Stopmachineifanyoneenters

thearea.

• Exercisecautiontoavoidslippingor falling,especiallywhen

operatinginreverse.

PREPARATION

Thoroughlyinspecttheareawheretheequipmentistobeused.

Removeall doormats,newspapers,sleds,boards,wiresandother

foreignobjects,whichcouldbe trippedoverorthrownbytheauger/

impeller.

Alwayswearsafetyglassesor eyeshieldsduringoperationand

whileperformingan adjustmentor repairto protectyoureyes.

Thrownobjectswhichricochetcancauseseriousinjurytothe

eyes.

Donotoperatewithoutwearingadequatewinteroutergarments.

Donotwearjewelry,longscarvesorotherlooseclothing,which

couldbecomeentangledinmovingparts.Wearfootwearwhich

willimprovefootingonslipperysurfaces.

Usea groundedthree-wireextensioncordand receptacleforall

machineswithelectricstartengines.

Disengageall controlleversbeforestartingtheengine.

Neverattempttomakeanyadjustmentswhileengineis running,

exceptwherespecificallyrecommendedintheoperator'smanual.

Letengineandmachineadjusttooutdoortemperaturebefore

startingtoclearsnow.

SafeHandlingof Gasoline

Toavoidpersonalinjuryor propertydamageuseextremecarein

handlinggasoline.Gasolineisextremelyflammableandthevaporsare

explosive.Seriouspersonalinjurycanoccurwhengasolineisspilled

onyourselfor yourclotheswhichcanignite.Washyourskinand

changeclothesimmediately.

• Useonlyanapprovedgasolinecontainer.

• Extinguishall cigarettes,cigars,pipesandothersources

ofignition.

• Neverfuelmachineindoors.

• Neverremovegascapor addfuelwhiletheengineishot

or running.

• Allowenginetocoolat leasttwo minutesbeforerefueling.

• Neveroverfillfueltank.Filltanktono morethan1/2inch

belowbottomoffillerneckto providespaceforfuel

expansion.

• Replacegasolinecapandtightensecurely.

• Ifgasolineisspilled,wipeit offtheengineandequipment.

Movemachinetoanotherarea.Wait5 minutesbefore

startingtheengine.

• Neverstorethemachineor fuelcontainerinsidewhere

thereisanopenflame,sparkor pilotlight(e.g.furnace,

waterheater,spaceheater,clothesdryeretc.).

• Allowmachinetocoolatleast5 minutesbeforestoring.

• Neverfillcontainersinsidea vehicleor ona truckor trailer

bedwitha plasticliner.Alwaysplacecontainersonthe

groundawayfromyourvehiclebeforefilling.

• If possible,removegas-poweredequipmentfromthetruck

ortrailerand refueliton theground.If thisisnotpossible,

thenrefuelsuchequipmentona trailerwitha portable

container,ratherthanfromagasolinedispensernozzle.

• Keepthenozzleincontactwiththe rimofthefueltankor

containeropeningatalltimesuntilfuelingiscomplete.Do

notusea nozzlelock-opendevice.

OPERATION

• Donotputhandsorfeetnear rotatingparts,in theauger/impeller

housingor chuteassembly.Contactwiththerotatingpartscan

amputatehandsandfeet.

• Theauger/impellercontrolleverisa safetydevice.Neverbypass

itsoperation.Doingsomakesthemachineunsafeandmaycause

personalinjury.

• Thecontrolleversmustoperateeasilyin bothdirectionsand

automaticallyreturntothedisengagedpositionwhenreleased.

• Neveroperatewitha missingor damagedchuteassembly.Keep

all safetydevicesin placeandworking.

• Neverrunanengineindoorsor ina poorlyventilatedarea.Engine

exhaustcontainscarbonmonoxide,anodorlessanddeadlygas.

• Donotoperatemachinewhileundertheinfluenceofalcoholor

drugs.

• Mufflerandenginebecomehotandcancausea burn.Donot

touch.Keepchildrenaway.

• Exerciseextremecautionwhenoperatingon orcrossinggravel

surfaces.Stayalertforhiddenhazardsor traffic.

• Exercisecautionwhenchangingdirectionandwhileoperatingon

slopes.

• Planyoursnow-throwingpatternto avoiddischargetowards

windows,walls,carsetc.Thus,avoidingpossibleproperty

damageor personalinjurycausedbya ricochet.

• Neverdirectdischargeatchildren,bystandersand petsor allow

anyoneinfrontofthemachine.

• Donotoverloadmachinecapacitybyattemptingtoclearsnowat

toofastof a rate.

• Neveroperatethis machinewithoutgoodvisibilityorlight.Always

be sureofyourfootingand keepa firmholdon thehandles.Walk,

neverrun.

• Disengagepowertotheauger/impellerwhentransportingor not

in use.

• Neveroperatemachineathightransportspeedson slippery

surfaces.Lookdownand behindand usecarewhenbackingup.

• Ifthemachineshouldstarttovibrateabnormally,stoptheengine,

disconnectthesparkplugwireandgrounditagainsttheengine.

Inspectthoroughlyfordamage.Repairanydamagebefore

startingandoperating.

• Disengageall controlleversandstopenginebeforeyouleave

theoperatingposition(behindthehandles).Waituntiltheauger/

impellercomestoa completestopbeforeuncloggingthechute

assembly,makinganyadjustments,or inspections.

• Neverputyourhandinthedischargeor collectoropenings.Do

notunclogchuteassemblywhileengineisrunning.Shutoff

engineand remainbehindhandlesuntilall movingpartshave

stoppedbeforeunclogging.

• Useonlyattachmentsandaccessoriesapprovedbythemanufac-

turer(e.g.wheelweights,tirechains,cabsetc.).

• Whenstartingengine,pullcordslowlyuntilresistanceisfelt,then

pull rapidly.Rapidretractionofstartercord(kickback)willpull

handandarmtowardenginefasterthanyoucanletgo.Broken

bones,fractures,bruisesor sprainscouldresult.

• Ifsituationsoccurwhichare notcoveredinthis manual,usecare

andgoodjudgment.ContactCustomerSupportforassistance

andthenameofyournearestservicingdealer.

CLEARING A CLOGGED DISCHARGE CHUTE

Handcontactwiththe rotatingimpellerinsidethedischargechute

is themostcommoncauseofinjuryassociatedwithsnowthrowers.

Neveruseyourhandtocleanoutthedischargechute.

Toclearthechute:

1. SHUTTHEENGINEOFF!

2. Wait 10secondstobe suretheimpellerbladeshavestopped

rotating.

3. Alwaysusea clean-outtool,notyourhands.

MAINTENANCE & STORAGE

• Nevertamperwithsafetydevices.Checktheirproperoperation

regularly.Refertothemaintenanceandadjustmentsectionsof

thismanual.

• Beforecleaning,repairing,or inspectingmachinedisengageall

controlleversandstoptheengine.Waituntiltheauger/impeller

cometoa completestop.Disconnectthe sparkplugwireand

groundagainsttheenginetopreventunintendedstarting.

Checkboltsand screwsforpropertightnessatfrequentintervals

tokeepthemachineinsafeworkingcondition.Also,visually

inspectmachineforanydamage.

Donotchangetheenginegovernorsettingor over-speedthe

engine.Thegovernorcontrolsthe maximumsafeoperatingspeed

oftheengine.

Snowthrowershaveplatesand skidshoesaresubjecttowear

anddamage.Foryoursafetyprotection,frequentlycheckall

componentsand replacewithoriginalequipmentmanufacturer's

(OEM)partsonly."Useofpartswhichdo notmeettheoriginal

equipmentspecificationsmayleadto improperperformanceand

compromisesafety!"

Checkcontrolleversperiodicallytoverifytheyengageanddisen-

gageproperlyandadjust,ifnecessary.Refertotheadjustment

sectioninthisoperator'smanualforinstructions.

Maintainor replacesafetyandinstructionlabels,asnecessary.

• Observeproperdisposallawsand regulationsforgas,oil,etc.to

protecttheenvironment.

Priorto storing,runmachinea few minutestoclearsnowfrom

machineand preventfreezeupofauger/impeller.

Neverstorethemachineorfuelcontainerinsidewherethereisan

openflame,sparkorpilotlightsuchasa waterheater,furnace,

clothesdryeretc.

Alwaysrefertotheoperator'smanualforproperinstructionson

off-seasonstorage.

Checkfuelline,tank,cap,andfittingsfrequentlyforcracksor

leaks.Replaceifnecessary.

Donotcrankenginewithsparkplugremoved.

AccordingtotheConsumerProductsSafetyCommission(CPSC)

andtheU.S.EnvironmentalProtectionAgency(EPA),thisproduct

hasan AverageUsefulLifeof seven(7)years,or 60 hoursof

operation.AttheendoftheAverageUsefulLifehavethemachine

inspectedannuallybyan authorizedservicedealertoensurethat

allmechanicalandsafetysystemsareworkingproperlyand not

wornexcessively.Failuretodo socanresultinaccidents,injuries

ordeath.

DO NOT MODIFY ENGINE

Toavoidseriousinjuryor death,do notmodifyengineinanyway.

Tamperingwiththegovernorsettingcanleadtoa runawayengineand

causeittooperateat unsafespeeds.Nevertamperwithfactorysetting

ofenginegovernor.

NOTICE REGARDING EMISSIONS

EngineswhicharecertifiedtocomplywithCaliforniaandfederal

EPAemissionregulationsforSORE(SmallOff RoadEquipment)are

certifiedtooperateon regularunleadedgasoline,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(ifany)

Ifa sparkattesterisused,itshouldbemaintainedin effectiveworking

orderbytheoperator.IntheStateofCaliforniatheaboveis required

bylaw(Section4442oftheCaliforniaPublicResourcesCode).Other

statesmayhavesimilarlaws.Federallawsapplyonfederallands.

A sparkarresterforthemufflerisavailablethroughyournearestSears

PartsandRepairServiceCenter.

SAFETY SYMBOLS

Thispagedepictsanddescribessafetysymbolsthatmayappearonthisproduct. Read,understand,andfollowall instructionson themachine

beforeattemptingtoassembleandoperate.

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

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

NOTE:Referencesto rightorleft sideofthesnowthrowerare

determinedfrombehindtheunitintheoperatingposition(standing

directlybehindthesnowthrower,facingthe handlepanel).

2. Tightenthewingknobstosecurethehandleinplace.

See Figure2.

REMOVING FROM CARTON

1. Cutthecornersofthecartonandlaythesidesflaton theground.

Removeanddiscardallpackinginserts.

2. Movethesnowthroweroutofthecarton.

3. Makecertainthecartonhasbeencompletelyemptiedbefore

discardingit.

ASSEMBLY

Positioning the Upper Handle

1. Pivottheupperhandleintotheoperatingpositionmakingsurenotto

pinchthecableinthe process,asillustratedin Figure1,untilit

clicksintoplace.

Figure1

Figure2

SETUP

Fuel Recommendations

Useautomotivegasoline(unleadedor lowleadedtominimizecombus-

tionchamberdeposits)witha minimumof87 octane.Gasolinewith

up to 10%ethanolor 15%MTBE(MethylTertiaryButylEther)canbe

used.Neverusean oil/gasolinemixtureordirty gasoline.Avoidgetting

dirt, dust,or waterinthefueltank.DONOTuseE85gasoline.

• Refuelina well-ventilatedareawiththeenginestopped.Donot

smokeorallowflamesor sparksin theareawheretheengineis

refueledor wheregasolineisstored.

• Donotoverfillthefueltank.After refueling,makesurethetank

capisclosedproperlyandsecurely.

• Becarefulnotto spillfuelwhenrefueling.Spilledfuelorfuelvapor

mayignite.Ifanyfuelis spilled,makesuretheareaisdrybefore

startingtheengine.

• Avoidrepeatedorprolongedcontactwithskinor breathingof

vapor.

Adding Fuel

Useextremecarewhenhandlinggasoline.Gasolineisextremely

flammableandthevaporsareexplosive.Neverfuelthe machine

indoorsor whiletheengineishotor running.Extinguishcigarettes,

cigars,pipesandothersourcesofignition.

Alwayskeephandsandfeetclearofequipmentmovingparts.Donot

usea pressurizedstartingfluid.Vaporsareflammable.

1. Removethegascap,checkthefuellevelandaddfuelif necessary.

Adding Oil

Theengineis shippedwithoutoil intheengine.Youmustfillthe

enginewithoilbeforeoperating.Runningtheenginewithinsufficient

oilcancauseseriousenginedamageandvoidtheproductwarranty.

1. Removetheoil fillercap/dipstickandwipethedipstickclean.See

Figure3.

Level

ADJUSTMENTS

Chute Assembly

Thepitchofthechuteassemblycontrolstheangleatwhichthesnow

isthrown.

1. Loosenthewingknobfoundontheleft sideofthechuteassem-

blyandpivottheupperchuteupwardordownwardtothedesired

pitch.Retightenthewingknobbeforeoperatingthesnowthrower.

SeeFigure5.

f --,,

Figure3

NOTE:Donotscrewinthedipstickwhencheckingtheoil level.

2. Slowlyaddoil untiltheoillevelregistersbetweenhigh(H)andlow

(L)on thedipstick,Figure4. RefertotheServiceandMainte-

nancesectionforthecorrectoil viscosityandengineoil capacity.

Figure5

Positionthechuteassemblyopeningbyusingthechutehandleto

throwthesnowinthedesireddirection.SeeFigure5.

,. j

Figure4

NOTE:Donotoverfill.Overfillingtheenginewithoil mayresultinthe

enginesmoking,hardstartingor sparkplugfouling.

This pageleft intentionallyblank.

RecoiJ Starter

er ControJ

Chute Assernbl,

Gas Ca

HandJe

Shave Plate

Auger

Exhaust

Chok

Oil FillCap.._._

w/Dipstick

Oil Drain/

SparkPlug/ "_

Boot

_\/\_l//_ Recoil

J; %/'Starter

Hand_

Figure10

Nowthat youhavesetupyoursnowthrower,it's importanttobecome

acquaintedwith itscontrolsandfeatures.RefertoFigure10.

CHOKE LEVER

Activatingthechokecontrolclosesthechokeplateoncarburetorand

aidsinstartingengine.

PRIMER

Pressingprimerforcesfueldirectlyintoengine'scarburetor

toaidin cold-weatherstarting.

IGNITION KEY

Theignitionkeyisa safetydevice.It mustbefully

insertedinorderfortheengineto start.Removethe

ignitionkeywhenthesnowthrowerisnotin use.

NOTE:Donotturntheignitionkeyinan attemptto start

theengine.Doingsomaycauseittobreak.

RECOIL STARTER

Thestarterhandleisusedtostarttheengine.

GASOLINE CAP

Removethegascaptoaddfuel.

AUGER

Whenengaged,theaugersrotationdrawssnowintotheaugerhousing

andthrowsitoutthedischargechute.Rubberpaddlesontheaugers

alsoaidin propellingthesnowthrowerastheycomein contactwith

thepavement.

AUGER CONTROL

Locatedontheupperhandle,theaugercontrolhandleisusedto

engageanddisengagedrivetotheauger.Squeezethecontrolhandle

againsttheupperhandletoengagetheauger;releaseittodisengage.

Meets ANSI Safety Standards

CraftsmanSnowThrowersconformtothesafetystandardoftheAmericanNationalStandardsInstitute(ANSi).

CHUTE ASSEMBLY

Rotatethedischargechutetotheleftor rightusingthechutehandle.

Thepitchofthedischargechutecontrolstheangleatwhichthesnow

isthrown.Loosenthewingknobonthesideofthedischargechute

beforepivotingthedischargechuteupwardordownward.Retighten

theknoboncethedesiredpositionhasbeenachieved.

SHAVE PLATE

Theshaveplatemaintainscontactwiththepavementasthesnow

throwerispropelled,allowingsnowclosetothe pavement'ssurfaceto

bedischarged.

BEFORE STARTING THE ENGINE

machineandin thismanualbeforeo

1. Thesparkplugwirewasdisconnectedforsafety.Attachthespark

plugwiretothesparkplugbeforestarting.

STARTING THE ENGINE

)ressurizedstartin{ flammable.

5. Iftheengineiswarm,pushtheprimerbuttononlyonce.

NOTE:Alwayscovertheventholeintheprimerbuttonwhenpushing.

Additionalprimingmaybe necessaryforthefirststartifthetempera-

tureisbelow15° R

6. Graspthestarterhandleandpulltheropeoutslowly,untilitpulls

slightlyharder.Letthe roperewindslowly.

7. Pullthestarterhandlerapidly.Donotallowthehandletosnap

back.Allowit torewindslowlywhilekeepinga firmholdon the

handle.

8. Astheenginewarmsupandbeginstooperateevenly,slidethe

chokeleverslowlytothe 1/2chokeposition.Whentheengine

| a

beginsto runsmoothly,movethechoketotheOFF_ _position.

Iftheenginefails,returnto FULLI_1 choke,thenslowlymoveto

1/2chokethentheOFF_ _position.

STOPPING THE ENGINE

1. Runtheenginefora fewminutesbeforestoppingto helpdryoff

anymoistureontheengine.

2. Tostoptheengineremovetheignitionkeyandstoreitin a safe

place.

3. Wipeall thesnowandmoistureawayfromtheenginecontrols

area.

Toavoidcarbonmonoxidepoisoning,makesuretheengineis

outdoorsina well-ventilatedarea.

1. Inserttheignitionkeyintotheslot.SeeFigure11.Donotattempt

toturnthekey.Doingsomaycauseittobreak.

Muffler,engineandsurroundingareasbecomehotandcancausea

burn.Becarefulanddonottouchwhenthe,/are hot.

ENGAGING THE AUGERS

Engagetheaugerbysqueezingtheaugercontrolagainsttheupper

handle.Releasethecontroltostoptheaugers.

ENGAGING THE DRIVE

Liftup slightlyonthehandletoallowthe rubberpaddlesontheauger

tocontactthepavementand propelthesnowthrowerforward.Pushing

downwardonthehandlewill raisetheaugersoffthegroundandstop

theforwardmotion.

NOTE:Excessiveupwardpressureonthehandlewillresultin

prematureweartotherubberaugerpaddles,whichisnotcoveredby

thewarranty.

Figure11

2. MovethechokelevertotheFULLI_1 chokeposition(cold

enginestart).

I II

3. If theengineiswarm,placethechokeintheOFFi I position

insteadof FULL.

4. Pushtheprimerfiveto seven(5-7)times,makingsuretocover

theventholewhenpushing.

Thispageleftintentionallyblank.

MAINTENANCE SCHEDULE

Beforeperforminganytypeofmaintenance/service,disengageall

controlsandstoptheengine.Waituntilallmovingpartshavecometo

acompletestop.Disconnectsparkplugwireandgrounditagainstthe

enginetopreventunintendedstarting.Alwayswearsafetyglassesduring

operationorwhileperforminganyadjustmentsorrepairs.

Eachuse 1. Engineoillevel.

2. Snowthrowerandexhaust

Followthemaintenanceschedulegivenbelow.Thischartdescribes

serviceguidelinesonly.UsetheServiceLogcolumntokeeptrackof

completedmaintenancetasks.Tolocate the nearest SearsService

Centeror to scheduleservice,simplycontactSearsat

1-800-4-MY-HOME@.

= =

1. Check

2. Clean

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

ine maintenance.

Periodicinspectionandadjustmentoftheengineisessentialifhigh

levelperformanceistobe maintained.Regularmaintenancewillalso

ensurea longservicelife.Therequiredserviceintervalsandthetype

ofmaintenanceto beperformedaredescribedinthetableabove.

Followthehourlyor calendarintervals,whicheveroccurfirst. More

frequentserviceisrequiredwhenoperatinginadverseconditions.

Changing Engine Oil

Theengineoil shouldbechangedafterthefirstfive hoursof useand

thenoncea seasonor afterevery50 hoursof use.

NOTE:Checktheoil levelbeforeeachuseandaftereveryfivehours

ofoperationtobesurethecorrectoil levelismaintained.Referto

CheckingOilLevelintheOperationSection.

1. Drainfuelfromthetankbyrunningtheengineuntilthefueltankis

empty.Besurethefuelfillcapissecure.

2. Placea suitableoil collectioncontainerundertheoil drainplug.

Removetheoildrainplug,Figure12.

Figure12

4. Tiptheenginetodrainoilintothecontainer.Usedoil mustbe

disposedofata propercollectioncenter.

5. Reinstallthedrainplugandtightenitsecurely.

6. Refillwiththerecommendedoilandchecktheoillevel;refertoAdding

Oil intheOperationSectionforinstructions..

7. Reinstalltheoil fillercap/dipsticksecurely.

Thoroughlywashyourhandswithsoapandwaterassoonas

possibleafterhandlingusedoil.

NOTE:Pleasedisposeofusedmotoroil ina mannerthat isfriendlyto

theenvironment.Takeit toa recyclingcenteror othercollectioncenter.

Oil Recommendations

Whenaddingoiltotheengine,refertotheviscositychartbelow

(Figure13).Engineoilcapacityis600 rnl(approx.20 oz.).Donot

over-fill.Usea 4-stroke,or anequivalenthighdetergent,premiumqual-

ity motoroilcertifiedtomeetor exceedU.S.automobilemanufacturer's

requirementsforserviceclassificationSG,SRMotoroilsclassifiedSG,

SFwillshowthisdesicnationonthecontainer.

DONOTusenon-detergentoil or 2-strokeengineoil.Itcouldshorten

theengine'sservicelife.

m m

Synthetic

(%-40 o -20o 0o 200 400

(oc) -30° -20° -10° 0°

Figure13

Spark Plug

cranktheen(inewiththesark__ removed.

Iftheenginehasbeenrunning,themufflerwillbe veryhot.Becareful

notto touchthemuffler.

Thesparkplugshouldbecheckedevery25 hoursandchangedonce

a seasonor every100hours.Toensureproperengineoperation,the

sparkplugmustalsobeproperlygappedandfreeofdeposits.

Removethesparkplugbootand usea sparkplugwrenchto

removetheplug,Figure14.

Spark Plug Boot

Figure14

Visuallyinspectthesparkplug.Discardthe sparkplugifthereis

anyapparentwear,or iftheinsulatoriscrackedorchipped.Clean

thesparkplugwitha wirebrushifit istobe reused.

Measurethepluggapwithafeelergauge.Correctasnecessaryby

bendingthesideelectrode,Figure15.Thegap shouldbe setto

.02-.03inches(0.60-0.80ram).

Electrode

_==== .02=.03in.

(0.60=0.80ram)

Figure15

4. Checkthatthesparkplugwasherisingoodconditionandthreadthe

sparkplugin byhandto preventcross-threading.

5. Afterthe sparkplugisseated,tightenwitha sparkplugwrenchto

compressthewasher.

NOTE:Wheninstallinga newsparkplug,tighten1/2-turnafterthe

sparkplugseatstocompressthewasher.Whenreinstallinga used

sparkplug,tighten1/8-to 1/4-turnafterthesparkplugseatsto

corn_ressthewasher.

becomever hotandcandamac me.

Cleaning the Engine

Iftheenginehasbeenrunning,allowittocoolforatleasthalfan hour

beforecleaning.Periodicallyremovedirtbuild-upfromengine.

Donotspraytheenginewithwatertocleanitbecausethewater

couldcontaminatethefuel.Usinga gardenhoseor pressurewashing

Iequipmentcanalsoforcewaterintothemuffleropening.Waterthat

[passesthroughthe muffer canenterthecy nderandcausedamage,j

Accumulationofdebrisaroundthemufflercouldcausea fire. Inspect

andcleanbeforeeveryuse.

LUBRICATION

Lubricatethepivotpointsonthecontrolhandleandtheextension

springattheendofthecontrolcablewitha lightoil onceeveryseason

andbeforethesnowthroweris putintostorageattheendof the

season.

ADJUSTMENTS

Shave Plate

Tochecktheadjustmentof theshaveplate,placethemachineona

levelsurface.Thewheels,shaveplateandaugersshouldallcontact

thelevelsurface.Notethatiftheshaveplateisadjustedtoohigh,

snowmayblowundertheaugerhousing.Iftheshaveplatewearsout

excessively,orthesnowthrowerdoesnotself-propel,theshaveplate

maybetoolowandneedsto beadjusted.

. Loosenthefourlocknutsandboltswhichsecuretheshave

platetothehousing.SeeFigure16.Movetheshaveplatetothe

desiredpositionandretightenthenutsandboltssecurely.

Figure16

4. Tipthesnowthrowerbacktotheoperatingpositionandpullthestarter

handlea fewtimesto seeifit isdifficultto pull.

5. Ifthestarterisdifficultto pull,removethesparkplugand pullthe

handleseveraltimestoensurethatanyoil trappedin theheadis

removed.

Oilmaycomeoutofthesparkplugholewhenitis removedandthe

starterhandleispulled.

6. Inspectthesparkplug.If itiswet,cleanoffanyoil before

re-installing.

NOTE:On newsnowthrowersor machineswitha newshaveplate

installed,theaugersmaybeslightlyofftheground.

Toadjusttheshaveplateproceedasfollows:

1. Drainthegasfromthesnowthrower.

2. Pullthestartercorduntilresistanceisfelt.Thentipthesnow

throwerbackuntilitrestson thehandles.

Control Cable

Asa resultofboththecontrolcableandtheaugerdrivebeltstretching

duetowear,periodicadjustmentsmaybenecessary.Iftheauger

seemsto hesitatewhenrotating,proceedasfollows:

Theupperholeinthecontrolhandleprovidesforanadjustmentin

cabletension.Toadjust,disconnecttheendofcontrolcablefromthe

bottomholein thecontrolhandleand reinsertit intheupperhole.

Insertthecablefromtheoutsideas shownin Figure17.

Control

Handle

Figure17

Testthesnowthrowerto seeifthereisa noticeabledifference.If

aftertheadjustmenttothecontrolcabletheaugerstill hesitateswhen

rotating,seeBeltReplacementforinstructionson replacingthebelt.

Chute Assembly

RefertotheAssemblysectionforinstructionsonadjustingthechute

assembly.

BELT REPLACEMENT

Auger Drive Belt

1. Removethebeltcoverbyremovingthefivehexscrewsthat

secureittotheframe.SeeFigure18.

2. Removethebeltbygraspingitfromthebottomoftheaugerpulley

and pullingoutward.

NOTE:Pushdownontheidlerpullerto releasethebeltfromunderthe

beltkeeper.SeeFigure18.

Toreplacethebeltfollowtheseinstructionsand referto Figure19:

Figure19

1. Pushdownon theidlerpulley.

2. Positionthebelton topof theaugerpulleyand underthebelt

keeper.

3. Routethebeltaroundtheenginepulley.

4. Pushthebeltoverthebottomoftheaugerpulley.

5. Reinstallthebeltcoverremovedearlier.

................Belt Keeper

Figure18

REPLACING AUGER PADDLES

Thesnowthrowerauger'srubberpaddlesaresubjecttowearand

shouldbereplacedifanysignsof excessiveweararepresent.

DoNOTallowtheauger'srubberpaddlesto weartothepointwhere

Iportionsofthemetalaugeritselfcancomein contactwiththepave-

lment.Doingsocan resultin seriousdamageto yoursnowthrower.

Tochangethe rubberpaddles,proceedasfollows:

1. Removetheexistingrubberpaddlesbyunscrewingtheself-

tappingscrewswhichsecurethemto theauger.SeeFigure20.

......." / +,

............i/." k _\I.........

Self-Tappir ..,,

Figure20

2. Securethereplacementrubberpaddlestotheaugerusingthe

hardwareremovedearlier.

ToobtainreplacementpaddlescallSearsat 1-800-4-MY-HOME.Ask

forpart# 735-04033.

REPLACING SHAVE PLATE

Theshaveplateisattachedtothebottomoftheaugerhousingand

issubjecttowear.It shouldbe checkedperiodically.Therearetwo

wearingedgesandtheshaveplatecanbe reversed.

1. Removethefourcarriageboltsandhexlocknutswhichattachit

tothesnowthrowerhousing.

2. Reversetheexistingshaveplateor installa one,makingsurethe

newshaveplateand makingsuretheheadsofthecarriagebolts

areontheinsideofthehousing.

3. Adjusttheshaveplateasinstructedon page14.

4. Tightensecurelyonceadjusted.

Toobtaina newshaveplate,callSearsat 1-800-4-MY-HOME.Askfor

part#731-1033

Ifthe snowthrowerwillnotbeusedfor30 daysor longer,or ifit istheendofthesnowseasonwhenthelastpossibilityof snowisgone,the

equipmentneedstobestoredproperly.Followstorageinstructionsbelowtoensuretopperformancefromthesnowthrowerformanymoreyears.

PREPARING ENGINE

Enginesstoredover30daysneedtobedrainedoffueltoprevent

deteriorationandgumfromforminginfuelsystemor onessential

carburetorparts.If thegasolineinyourenginedeterioratesduring

storage,youmayneedto havethecarburetor,andotherfuelsystem

components,servicedor replaced.

1. Removeall fuelfromtank byrunningengineuntilitstops.

2. Changetheengineoil.

3. Removesparkplugandpourapproximately1oz.(30 rnl)ofclean

engineoil intothecylinder.Pullthe recoilstarterseveraltimesto

distributetheoil,and reinstallthesparkplug.

4. Cleandebrisfromaroundengine,andunder,around,andbehind

muffler.Applya lightfilmofoilon anyareasthatare susceptible

torust.

• Storeina clean,dry andwellventilatedareaawayfromanyap-

pliancethatoperateswithaflameor pilotlight,suchasa furnace,

waterheater,or clothesdryer.Avoidanyareawitha spark

producingelectricmotor,or wherepowertoolsareoperated.

Neverstoresnowthrowerwithfuelintank indoorsor inpoorlyventi-

latedareas,wherefuelfumesmayreachan openflame,sparkor pilol

lightasona furnace,waterheater,clothesdryerorgasappliance.

• Ifpossible,avoidstorageareaswithhighhumidity.

• Keeptheenginelevelin storage.Tiltingcancausefueloroil

leakage.

PREPARING SNOW THROWER

Whenstoringthesnowthrowerin anunventilatedormetalstor-

age shed,careshouldbetakentorustprooftheequipment.Using

a lightoilor silicone,coattheequipment,especiallyanychains,

springs,bearingsandcables.

• Removealldirt fromexteriorofengineandequipment.

• Followlubricationrecommendations.

• Storeequipmentin a clean,dryarea.

Beforeperforminganytypeofmaintenance/service,disengageallcontrolsandstoptheengine.Waituntilall

movingpartshavecometoacompletestop.Disconnectsparkplugwireandgrounditagainsttheengineto

Ipreventunintendedstarting.Alwayswearsafetyglassesduringoperationorwhileperforminganyadjustmentsor

[repairs.

Thissectionaddressesminorserviceissues.Tolocate the nearest SearsService Centeror to scheduleservice,simplycontactSears

at 1-800-4-MY-HOME®.

Enginefailsto start

Enginerunserratically

1. Fueltankempty,or stalefuel.

2. Blockedfuelline.

3. Keynotinsertedalltheway.

4. Sparkplugwiredisconnected.

5. Faultysparkplug.

6. Enginenotprimed.

1. Filltankwithcleanfreshgasoline.

2. Cleanfuelline.

3. Insertkeyall theway.

4. Connectwiretosparkplug.

5. Cleansparkplug,readjustgap,or replace.

6. Primeenginefivetoseventimes.

7. Enginefloodedfromexcessivepriming.

1. Enginerunningonchoke.

2. Fuelline blocked,or stalefuel.

3. Wateror dirtinfuelsystem.

4. Carburetoroutofadjustment.

1. Carburetoroutofadjustment.

1. Sparkplugwireloose.

2. Ventin gascapplugged.

1. Loosepartsordamagedauger.

Waitatleasttenminutesbeforestarting.

Movechokeleverto OFFposition.

Cleanfuellineandfilltankwithfresh,cleangasoline.

Drainfueltank.Refillwithfreshfuel.

Contacta SearsServiceCenter.

Engineoverheats Contacta SearsServiceCenter.

Lossof power Firmlyconnectsparkplugwire.

Clearvent.

Excessivevibration Stopengineimmediatelyanddisconnectsparkplug

wire.Checkforpossibledamage.Tightenall bolts

andnuts.Repairasneeded.Ifproblempersists,take

snowthrowertoa SearsServiceDealer.

Snowthrowerfailstoself- 1. Augercontrolcableoutofadjustment. 1. AdjustaugercontrolcableasshowninServiceand

propel Maintenancesection.

2. Augerdrivebeltlooseor damaged. 2. Replaceaugerdrivebelt.

Augerscontinueto rotate 1. Augercontrolcableoutofadjustment. 1. AdjustaugercontrolcableasshowninServiceand

Maintenancesection.

Unitfailstodischargesnow 1. Chuteassemblyclogged. 1.

2. Foreignobjectlodgedin auger.

3. Augercontrolcableoutofadjustment.

4. Augerbeltlooseor damaged.

Stopengineanddisconnectsparkplugwire.Clean

chuteand insideof augerhousingwithclean-outtool

or stick.

2. Stopengineimmediatelyanddisconnectthespark

plugwire.Removeobjectfromauger.

3. Adjustaugercontrolcable.

4. Replaceaugerbelt.

NEED MORE HELP?

You'H f_nd the answer 4_nd mov'e or_ managemyBome corn - Io_ Iree

Find this and all your other product manuals online.

Get answers from our team of home experts.

Get a personalized maintenance plan for your home.

Find information and tools to help with home projects.

b_ou@/d: t:o ye_ by gears

Craftsman Snow Thrower Model 247.88704

Page is loading ...

MTD 31A-2M1A799 Owner's manual

Brand: MTD

Model: 31A-2M1A799

Category: Snow throwers

Type: Owner's manual

Download PDF

report

in other languages

español: MTD 31A-2M1A799 El manual del propietario

MTD 31A-2M1A799 Owner's manual

MTD 31A-2M1A799 Owner's manual

in other languages

Related papers

Other documents