Craftsman 50 Hp Snow Thrower Owners Manual
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OPETlO Theoperationofanysnowthrowercanresultinforeignobjectsbeingthrownintothe eyes,whichcanresultinsevereeyedamageAlwayswearsafetyglassesoreye shieldswhileoperatingthesnowthrower. WerecommendstandardsafetyglassesavailableatSEARSRetailStoresor ServiceCenters. HOWTOUSEYOURSNOW THROWER TOSTOPYOURSNOWTHROWER @Tostopthrowingsnow,releasetheaugerdrivelever (SeeFig°11). @Tostopthetractiondrive,releasethetractiondrive lever.(SeeFigure1!) ®Tostoptheengine,pushthethrottlecontrolleverto STOPandpullouttheignitionkey(SeeFig10) NOTE:DONOTturnkey. TOCONTROLSNOWDISCHARGE •Turnthecrankassemblytosetthedirectionofthe snowthrowing OLoosenthewingknobonthechutedeflectorand movethedeflectortosetthedistance.Movethe deflectorUPformoredistance,DOWNforless distance°Thentightenthewingknob(Fig9). TOMOVEFORWARDANDBACKWARD 0Toshilt,releasethetractiondriveleverandmove thespeedshifterlevertothespeedyoudesire. Groundspeedisdeterminedbysnowconditions. Selectthespeedyoudesirebymovingthespeed shifterleverleftintotheappropriatenotchonthe shiftleverplate: Speeds1,2_Wet,Heavy,ExtraDeep Speed3-Light Speed4-VeryLight Speeds5,6-Transportonly OEngagethetractiondrivelever(SeeFig.11,teft hand),Asthesnowthrowerstartstomove,maintain afirmholdonthehandles,andguidethesnow throweralongtheclearingpathDonotattemptto pushthesnowthrower ®Tomovethesnowthrowerbackward,movethe speedshifterleverrightintofirstorsecondreverse andengagethetractiondrivelever(lefthand) IMPORTANT:NEVERMOVETHESPEEDSHIFTER LEVERWHILETHETRACTION LEVERISDOWN TOTHROWSNOW OPushdowntheaugerdrivelever(SeeFig11,right hand) OReleasetostopthrowingsnow 11 WINGKNOB PRIMERBUTTON \ FIG,9 ELECTRIC BUTTON CONTROL / THROTTLE CONTROL FIG,10 STARTER HANDLE TRACTIONDRIVE LEVER ON LEFT_ HAND AUGERDRIVE LEVER FIG.11 CAUTION:READOWNERSMANUAL BEFOREOPERATINGMACHINE. NEVERDIRECTDISCHARGETOWARD BYSTANDERS_STOPTHEENGINEBE-, FOREUNCLOGGINGDISCHARGE CHUTEORAUGERHOUSINGANDBE- FORELEAVINGTHEMACHINE,
OPERATION TOUSEWHEELLOCKOUTPIN •Thelefthandwheelissecuredtotheaxlewithaklick pin(SeeFig.,12A),Thisunitwasshippedwiththis klickpininthelocked(throughwheelhole)position •Foreaseofmaneuverabilityinlightsnowconditions, disconnecttheklickpinfromthewheellockedposition andpushintothesinglewheeldrive(unFockedaxle holeonly)position(SeeFig,12B) •Makesurethattheklickpinisinthesinglewheel drivepositionoftheaxleonlyandnotthroughthe lockedposition BEFORESTARTINGTHEENGINE •Ifthesnowthrowermustbemovedwithouttheaidof theengine,itiseasiertoputlthesnowthrowerbythe handlesratherthanpushing IIBeforeyouserviceorstarttheengine,familiarize yourselfwiththesnowthrower,Besureyou understandthefunctionandlocationofallcontrols NOTE:Checktensionofclutchcablesbeforestartingthe engine(SeeToAdjustTheControlCablesparagraphon page19), •Besurethatallfastenersaretight •Makesuretheheightadjustskidsareproperly adjusted(SeeToAdjustSkidHeightparagraphon page18), •Checktirepressure(14to17pounds)Seesideof tireformaximuminflationDonotexceedmaximum pressure FILLOIL: Thissnowthrowerwasshippedwithacontainerof 5W30oilThisoilmustbeaddedtotileenginebefore operatingRemovetheoilfillcap!dipstickandfillthe crankcasetoFULLlineondipstick(21ounces)(SeeFig 14) NOTE:Enginemayalreadycontainsomeresidual oilCheckfrequentlywhenfillingthecrankcase,Do notover.fill Tightenthefillcap/dipsticksecurelyeachtimeyoucheck theoillevel NOTE:Oilmustbechangedafterthefirst2hoursof operationtoextendenginelife Forextremecordoperatingconditionsof0°Fandbelow, useapartialsynthetic0W30motoroilforeasierstarting. FILLGAS: Fillthefueltankwithclean,fresh,unleadedgrade automotivegasolineBesurethatthecontaineryoupour thegasolinefromiscleanandfreefromrustorother foreignparticles,Neverusegasolinethatmaybestale fromlongperiodsofstorageinthecontainer 12 KLICKPIN LOCKED POSITION 2-WHEELDRIVE FIG.12A KUCKPIN UNLOCKED POSITION SINGLEWHEELDRIVE FIG+12B OILFILLCAPID|PSTICK NOTE:OILLEVELMUST BEBETWEENFULL ANDADDMARK FIG.13 WARNING:Experienceindicatesthatalcoholblended fuels(calledgasohotorthoseusingethanolormethanol) canattractmoisturewhichleadstoseparationandforma- tionofacidsduringstoragethefuelsyslemofanengine whileinstorageAcidicgascarldamagethefuelsystem ofanenginewhileinstorage, Toavoidengineproblems,thefuelsystemshouldbe emptiedbeforestoragefor30daysorlonger,Startthe engineandletitrununtilthefuellinesandcarburetorare emptyUsethecarburetorbowldraintoemptyresidual gasolinefromthefloatchamber(Fig,37,page25)Use freshfuelnextseason(SeeStorageinstructionson page25foradditionalinformation,) Neveruseengineorcarburetorcleanerproductsinthe fueltankorpermanentdamagemayoccur
TOSTOPENGINE OE OTostopengine,movethethrottlecontrolleverto STOPpositionandremovekey.Keepthekeyina safeplace.Theenginewillnotstartwithoutthekey. TOSTARTENGINE(ElectricStarter) BesurethattheenginehassufficientoilThesnow throwerengineJsequippedwitha120vollAC.electric starterandrecoilstarter_.Beforestartingtheengine,be certainthatyouhavereadthefollowingintormatfon: COLDSTART(SeeFig.14) •Besuretheaugerdriveandtractiondriveleversare inthedisengagedRELEASEDposition. ATION PRIMERELECTRIC CHOKEBUTTON CONTROL BUTTON IGNITIONRECOIL KEYSTARTER THROTTLECONTROL @MovethethrottlecontroltoRUNposition ORemovethekeysfromtheplasticbag.Insertone keyintotheignitionslotBesureitsnapsintoplace DONOTTURNKEYKeepthesecondkeyinasafe place @RotatethechokeknobtoFULLchokeposition OConnectthepowercordtotheswitchboxonthe engine. OPlugtheolherendofthepowercordintoathree- hole,grounded120voltA.C.receptacle. OPushtheprimerbuttonwhilecoveringtheventhole asfollows:(Removefingerfromprimerbutton betweenprimes). Donotprimeiftemperatureisabove50°F Twotimesiftemperatureis50°Fto15°F. Fourtimesiftemperatureisbelow15°F. @Pushdownonthestarterbuttonuntiltheengine starts..Donotcrankformorethan10secondsata time.,ThiselectricstarteristhermallyprotectedI1 overheateditwillstopaulomaticallyandcanbe restartedonlywhenithascooledtoasafe temperature(awaitofabout5to10minutesis required). FIGo14 _AUTION:GASOLINEISFLAMMABLE ANDCAUTIONMUSTBEUSEDWHEN HANDLINGORSTORINGIT, DONOTFILLFUELTANKWHILESNOW THROWERISRUNNING,WHENITISHOT,OR WHENSNOWTHROWERISINANENCLOSED AREA, KEEPAWAYFROMOPENFLAMEORANELEC- TRICALSPARKANDDONOTSMOKEWHILE FILLINGTHEFUELTANK, NEVERFILLTHETANKCOMPLETELY,FILL THETANKTOWlTHIN1/4-1f2FROMTHETOP TOPROVIDESPACEFOREXPANSIONOFFUEL ALWAYSFILLFUELTANKOUTDOORSAND USEAFUNNELORSPOUTTOPREVENTSPILL. ING, MAKESURETOWIPEUPANYSPILLEDFUEL BEFORESTARTINGTHEENGINE, STOREGASOLINEINACLEAN,APPROVED CONTAINERANDKEEPTHECAPINPLACEON THECONTAINER. O Whentheenginestarts,releasethestarterbutton andslowlyrotatethechoketoOFFposition.Ifthe enginefalters,rotatethechoketoFULLandthen graduallytoOFF •Disconnectthepowercordfromthereceptaclefirst andthenfromtheswitchboxonengine,. NOTE:Allowtheenginetowarmupforafewminutes becausetheenginewillnotdevelopfullpoweruntilil reachesoperatingtemperature ORuntheengineatfufithrottleRUNwhenthrowing snow, 13
iiiii, OPERATION CAUTION:NEVERRUNENGINE ,_INDOORSORINENCLOSED, POORLYVENTILATEDAREAS. ENGINEEXHAUSTCONTAINS CARBONMONOXIDE,ANODORLESSAND DEADLYGAS.KEEPHANDS,FEET,HAIRAND LOOSECLOTHINGAWAYFROMANYMOVING PARTSONENGINEANDSNOWTHROWER. WARNING:TEMPERATUREOFMUFFLERAND NEARBYAREASMAYEXCEED150°F.AVOID THESEAREAS° DONOTALLOWCHILDRENORYOUNGTEEN- AGERSTOOPERATEORBENEARSNOW THROWERWHILEITISOPERATING. CAUTION:DONOTATTEMPTTORE- MOVEANYITEMTHATMAYBECOME LODGEDINAUGERWITHOUTTAKING THEFOLLOWINGPRECAUTIONS: •RELEASEAUGERDRIVEANDTRACTION DRIVELEVERS. •MOVETHROI3FLELEVERTOSTOPPOSI- TION, •REMOVE(DONOTTURN)IGNITIONKEY, •DISCONNECTSPARKPLUGWIRE. •DONOTPLACEYOURHANDSINTHE AUGERORDISCHARGECHUTE.USEA PRYBAR° TOSTARTENGINE(RecoilStarter) Besurethattheenginehassufficientoil.Belorestarting theengine,becertainthatyouhavereadthefollowing information: COLDSTART(SeeFig.14) •Besuretheaugerdriveandthetractiondrivelevers areinthedisengagedRELEASEDposition MovethethrottlecontroltoRUNposition O O PullthestarterhandlerapidlyDonotallowthehandle tosnapback,butallowittorewindslowlywhile keepingafirmholdonthestarterhandle. •Astheenginewarmsupandbeginstooperateevenly, rotatethechokeknobslowlytoOFFpositionIfthe enginefalters,returntoFULLchoke,thenslowly movetoOFFchokeposition NOTE:Allowtheenginetowarmupforafewminutes becausetheenginewillnotdevelopfullpoweruntilit reachesoperatingtemperature •Runtheengineatorneatthetopspeedwhenthrowing snow WARMSTART Ifrestartingawarmenginealterashortshutdown,rotate choketoOFFinsteadofFULLanddonotpushthe primerbutton. FROZENSTARTER Ifthestarterisfrozenandwillnotturnengine: @Pullasmuchropeoutofthestarteraspossible. @Releasethestarterhandleandletitsnapback againstthestarter. Iftheenginestillfailstostart,pushtheprimerbuttontwo orthreetimesagainandrepeatthetwoprevioussleps untiltheenginestartsThencontinuewiththedirections forcoldstart Tohelppreventpossiblefreeze-upofrecoilstarterand enginecontrols,proceedasfollowsaftereachsnow removaljob •Withtheenginerunning,pullthestarterropehard withacontinuousfullarmstrokethreeorfourtimes Pullingofstarterropewillproducealoudclattering sound.Thisisnotharmfultotheengineorstarter. •Withtheenginenotrunning,wipeallsnowand moisturefromthecarburetorcoverinareaofcontrol leversAlsomovethrottlecontrolchokecontrol,and starterhandleseveraltimes. SNOWTHROWINGTIPS ®Formaximumsnowthrowerefficiencyinremoving snow,adjustgroundspeed,NEVERthethrottle=Go slowerindeep,freezing,orwetsnow.Ifthetrack slips,reduceforwardspeedTheengineisdesigned todelivermaximumpedormanceatfullthrottleand shouldberunatthispowersettingataUtimes. •Mostelficientsnowthrowingisaccomplishedwhen thesnowisremovedirnmediatelyafteritfalls.. •Forcompletesnowremoval,slightlyoverlapeach pathpreviouslytaken •Thesnowshouldbedischargeddownwindwhenever possible. •Fornormalusage,settheskidssothatthescraper baris1/8abovetheskids.Forexlremelyhardpacked snowsurfaces,adjusttheskidsupwardsothatthe scraperbarlouchestheground •Ongravelorcrushedrocksurfaces,settheskidsat 1-1/4belowthescraperbar(seeToAdjustSkid Heightparagraphonpage18)Stonesandgravel muslnotbepickedupandthrownbythemachine. •Afterthesnowthrow!ngjobhasbeencompleted, allowtheenginetoidleforafewminutes,whichwill meltsnowandaccumulatediceofftheengine. ®Cleanthesnowthrowerthoroughlyaftereachuse. •Removeiceandsnowaccumulationandalldebris fromtheentiresnowthrower,andflushwithwater(if possible)toremoveallsaltorotherchemicalsWipe snowthrowerdry 14
GUSTOE SERVICERECORDS iiiiiiiiiiiiiiiiiiiiii SCHEDULE ESPaNSB/IIIIIIIIIII/Ij1/11¸¸¸¸1111iiLmTmES SERVICE DATES Fillindatesasyoucomplete regularservice iiiiiIIHILIIII AfterBeforeAsEveryEveryEveryEachBefore First2EachNeeded5t025SeasonStorage hoursUseHoursHoursHours CheckEngineOi!Level,__ ChangeEngineOil,I__ TightenAllScrewsandNuts_V_ !.,v LubricateAllPivotPoints LubricateAugerShaft(SeeShear iBoltReplacement) LubricateDiscDrivePlateZerk(See ICustomerResponsibilities} CheckAugerClutchCable It Adjustment(SeeCableAdjustment) CheckTractionClutchCable Adjustment(SeeCableAdjustment) AdjustDriveBeltsVI ........i. ,,=l_ CheckFuel DrainFuelV,# ReplaceSparkPlug_ GENERALRECOMMENDATIONS LUBRICATIONCHART Thewarrantyonthissnowthrowerdoesnotcoveritems thathavebeensubjectedtooperatorabuseornegli- gence,Toreceivefullvaluefromthewarranty,operator mustmaintainsnowthrowerasinstructedinthismanual, Someadjustmentswillneedtobemadeperiodicallyto properlymaintainyoursnowthrower AlladjustmentsintheServiceandAdjustmentssectionof thismanualshouldbecheckedatleastonceeach season AFTERFIRSTUSE oCheckforanylooseordamagedpads ®Tightenanyloosefasteners •Checkandmaintaintheauger_ •Aftereachuse,removeallsnowandslushoffthe snowthrowertopreventfreezingofaugerorcontrols ®Checkcontrolstomakesuretheyarefunctioning properly, •tfanypartsarewornordamaged,replace immediately LubricateaugershafL Coatwithaclingingtype greasesuchasLubr|plateor fiberimpregnatedgrease., t5
,JJl,i SNOWTHROWER LUBRICATION-EVERYFIVEHOURS ®Lubricatetheflangeonthedischargechuteevery five(5)hoursduringuseandbeforestorage(See Fig17), •SeeLubricationChartdiagramonpage15for lubricationpointsandtypeoflubricant LUBRICATION-EVERYTENHOURS •AugerShaft-Forstorage,lubricateaugershaft(See Fig16)withaclingingtypegreasesuchasLubriplate, Whenreplacingshearbolts,removeshearboltsand lubricateaugershaft(seeToReplaceShearBolt paragraphonpage23) •Thechutecontrolrod,usedtochangethedirection ofthesnowdischarge,needstobelubricated frequentlyandbeforestorage(SeeFig17) •SeeLubricationChartdiagramonpage15for lubricationpointsandtypeoflubricant LUBRICATION-EVERY25HOURS CUSTOMERRESPONSIBILITIES lull iIIiIIi,illlillli_LL- _AXLE AXLE_ FIG.15 •Positionspeedselectorleverinfirstgear •Placeacoinor(ashimofequalthickness)between therubberfrictionwheelanddiscdriveplateto preventfrictionwheelcontactingthefrictiondisc •DiscDrivePlate-Usingahandgreasegunlubricate withaHiTempEPMolygrease,zerkiocatedbeneath thediscdriveplate(SeeFig18inset)every25hours andattheendoftheseasonand/orbeforestorage. Togreasezerk,turndiscdriveplateclockwiseby handuntilzerkisclearlyvisibleatfrontcer_terDO NOToverfillorallowgreasetocomeinwheelor damagewillresultFillzerkontyuntiigreasebecomes visiblebelowbearingassemblylocatedundergrease zerkSeeLubricationChartonpage15 IIIMPORTANT:Removecoinandensurethatagap existsbetweenfrictionwheelanddiscdrive plate. ®NOTE:Cleanallexcessgreaseloundonfriction dischub. LUBRICATEAUGERSHAFT FIG.16 DISCHARGE CHUTE FLANGE CHUTE CONTROL ROD FIG.17 LUBRICATION •HexShaftandGears-Hexshaftandgearsrequ[re nolubricationAllbearingsandbushingsarelifetime lubricatedandrequirenomaintenance(SeeFig,18), t)CAUTION:Donotallowgreasetocontactfriction wheelanddiscdriveplate LUBRICATION-BEFORESTORAGE ®Removebothwheels,grease(anyautomotivetype grease)bothaxles(SeeFig15)andreplacewheets. Dothisatleastonceayearand/orpriortostorage, NOTE:Anygreasingoroilingoftheabovecomponents cancausecontaminationofthefrictionwheelIfthedisc driveplateorfrictionwheelcomeincontactwithgrease oroil,damagetothefrictionwheelwillresult Shouldgreaseoroilcomeincontactwiththediscdrive plateorfrictionwheel,besuretocleantheplateand wheelthoroughly. NOTE:Forstorage,thehexshaltandgearsshouldbe wipedwith5W-30motoroiltopreventrusting(SeeFig 18) 16
CUSTOE ®AugerGearBox-Theaugergearboxislubricatedat thefactoryandshouldnotrequireadditionallubrica- tionifforsomereasonthelubricatantshouldleakout, oriftheaugergearboxhasbeenserviced,add LubfiplateNo630-AAorequivalentMaximum31/4 ouncesshouldbeused,Removefillerplug(Figure17- A)onceayear,,Ifgreaseisvisible,donotaddIfgrease isnotvisible,useapieceoffinewirelikeadipstick,to checkifthereisgreaseinthegearboxAddgreaseif necessaryReinstallgearboxfiller GEARBOX °_FILLERPLUG ENGINEFIG.17-A LUBRICATION Checkthecrankcaseoillevel(SeeFig19)beforestaring theengineandaftereachfive(5)hourso!continuous USerAddSAE.5W-30motoroilasneededTightenlilt cap/dipsticksecurelyeachtimeyouchecktheoillevel S_A,E,5W-30motoroilmaybeusedtomakestarting easierinareaswherethetemperatureis20°Forlower,, OILRECOMMENDATION OnlyusehighqualitydetergentoilratedwithAPIservice classificationSGSelecttheoilsviscositygradeaccord- ingtoyourexpecledoperatingtemperature: RECOMMENDEDVISCOSITYGRADES 32° COLDER(€I)_WARMER 1 5W30SAE30 PONSILITI HEXSHAFTANDGEARS WHEEL (RequireNo Lubrication) DRIVE PLATE FRICTION WHEEL GREASE ZERK GAPBETWEEN =RICTtONWHEEL ANDDISCDRIVE PLATE I-_.........BEARING i_GREASEASSEMBLY ........ZERK Pointatwhich greaseshould bevisible ........FIG.18 _ILLEVEL .,/1__3__eFMUSTBEBETWEEN _-0_fFULLAND ADDMARK FIG.19 OILFILLCAP/ DIPSTICK NOTE:Forextremecoldoperatingconditionsof0°Fand below,usepartialsynthetic0W30oilforeasierstarting NOTE:Althoughmulti-viscosityoilsimprovestartingin coldweather,thesemufti-viscosityoilswillresultin increasedoilconsumptionwhenusedabove32_FCheck yourengineoillevelmorefrequentlytoavoidpossible enginedamagefromrunninglowonoil Changetheoilafterfirsttwohoursofoperationandevery 25hoursthereafteroratleastonceayearifthesnow throwerisnotusedfor25hours(SeeFig20) •Positionsnowthrowersothattheoildrainptugis _owestpointontheengineRemoveoHdrainplug andoilfillcap/dipstickDrainoilintoasuitable containerOilwilldrainmorelreelywhenwarm FIG.20 OReplaceoildrainplugandtightensecurely,Refill crankcasewithS,AE5W30motoroil SPARKPLUG o o O 0 Makesurethatthesparkplugistightenedsecurely intotheengine,andthesparkplugwireisattachedto thesparkplug Ifatorquewrenchisavailable,torqueplugto18to23 footpounds.. Cleantheareaaroundthesparkplugbasebefore removaltopreventdirtfromenteringtheengine Cleanthesparkplugandresetthegapperiodically at030inch I7
SERVICEANDADJUSTMENTS CAUTION:ALWAYSDtSCONNECTTHE SPARKPLUGWIREANDTIEBACK AWAYFROMTHEPLUGBEFOREMAK- INGANYADJUSTMENTSORREPAIRS. TOADJUSTSKIDHEIGHT Thissnowthrowerisequippedwithtwoheightadjustment skids,locatedontheoutsideoftheaugerhousing(See Fig2!)Theseskidselevatethefrontofthesnowthrower Fornormalhardsurfaces,adjusttheskidsasfollows: •Checktirepressure(14to17pounds)Seesicleoftire formaximuminflationDonotexceedmaximumpres- sureonsideoftire •Placetheextrashearboltssupplied(foundinparts bag)undereachendofthescraperbarnearbutnot undertheskid •Loosentheskidmountingnuts(SeeFig21)and adjusttheskidsuptobringthefrontofthesnow throwerdownRe-tightenthemountingnuts QSettheskidontheothersideatthesameheight Forrockyorunevensurfaces,adjusttheskidsasfollows: •Raisethefrontofthesnowthrowerbymovingthe skidsdown..Thiswillhelppreventrocksandother debrisfrombeingpickedupandthrownbytheauger NOTE:Besurethatsnowthrowerissetatsameheighton bothsides TOADJUSTSCRAPERBAR Afterconsiderableuse,themetalscraperbarwillhavea definitewearpatternThescraperbarinconjunctionwith theskidsshouldalwaysbeadjustedtoallow1/8between thescraperbarandthesidewalkorareatobecleaned Thescraperbarmayhavetobereturnedtoitsoriginal lowersettingtomaintaintheoriginalperformancelevelTo adjust: •Positionthesnowthroweronalevelsurface •Makesurebothtiresareequallyinflated •Loosenthecarriageboltsandnutssecuringthe scraperbartotheaugerhousing iAdjustthescraperbartotheproperposition @Tightenthecarriageboltsandnuts,makingsurethat thescraperbarisparallelwiththeworkingsurface •Forextendedoperation,thescraperbarmaybe reversedIfthescraperbarmustbereplacedduefo wear,removethecarriageboltsandnutsandinstalla newscraperbar SKIDMOUNTINGNu_rs AUGERHOUSINGHEIGHTADJUSTSKID iii=lu=uu, FIG.21 CAUTION:BECERTAINTOMAINTAIN PROPERGROUNDCLEARANCEFOR YOURPARTICULARAREATOBE CLEARED.OBJECTSSUCHASGRAVEL, ROCKSOROTHERDEBRIS,IFSTRUCK BYTHEIMPELLER,MAYBETHROWN WiTHSUFFICIENTFORCETOCAUSE PERSONALINJURY,PROPERTYDAM- AGEORDAMAGETOTHESNOW THROWER. TOADJUSTCHUTE CRANKASSEMBLY Ifyoucannotrotatethechutecrankfullytotheleftandto theright,youneedtoadjustthechutecrank(SeeFig22) •Loosenboth1/2nutsonthecrankadjustingrod (using314wrenches) •Rotatetheadjustingrodinorouttoallowabout1/8 clearancebetweenthenotchintheflangeandthe outerdiameteroftheworm •Oncethisclearanceisset,tightenthenuts NOTE:Besurethecrankdoesnottouchthesideofthe engineorthecoverwillbescratched. PLASTIC_NOTCHEDSECTION CAPCOTTERJ__,_\ FLPIN18IN_..LEARANCE_. 1_J\k.J_.._I2,NCH 18 FIG.22
TOADJUSTTHECLUTCHC6NTROL CABLES Periodicadjustmentofthecablesmayberequireddueto normalstretchandwearonthebelts,Tocheckforcorrect adjustment,thecontrollevermustbeinthefullforward position,restingontheplasticbumper,,Thecontrol cablesarecorrectlyadjustedwhenthecenteroftheZ fittingisbetweenthecenterandtopoftheholeinthe clutchleverandthereisnodroopinthecable(SeeFig. 23)° Ifadjustmentisnecessary: ODisconnect_Fittingfromdrivelever O ® ® Pushthecablethroughthespring(SeeFig24)to exposethethreadedportionofthecable. Holdthesquareendofthethreadedportionwithpliers andadjusttheIocknutinoroutuntiltheexcessslack isremoved(SeeFig,,24),, Pullthecablebackthroughthespringandconnectthe cable. ODothesamefortheotherlevercable, NOTE:Wheneverthetractiondriveoraugerbeltsare adjustedorreplaced,thecableswillneedtobeadjusted. TOADJUSTBELTS CONTROLLEVER AUGERMUSTBEINFULL LEVERFORWARDPOSITION (JustContacting ZFITTINGPlasticBumpor)WHEN CHECKING PLASTICBUMPER FIG.23 SPRING SQUARE END LOCKNUT FIG.24 BeltsstretchduringnormaluserIfyouneedtoadjust thebeltsduetowearorstretch,proceedasfollows: AUGERDRIVEBELT(SeeFig.26) Ifyoursnowthrowerwillnotdischargesnow,checkthe controlcableadjustment,Ifitiscorrect,thencheckthe conditionoftheaugerdrivebellitmaybelooseor damaged°Ifitisdamaged,replaceit,SeeToReplace Beltsparagraphonpage20Iftheaugerdrivebeltis loose,adjustasfollows: @Disconnectthesparkplugwire @Removethebeltcover(SeeFig,27,page20)° ®Loosenthenutontheaugeridlerpulley(SeeFig,26) andmovethepulleytowardthebeltaboutt/8L @Tightenthenut. @PresstheaugerdriveleverCheckthetensiononthe belt(oppositeaugeridlerpulley).Thebeltshould deflectabout1/2withmoderatepressure(SeeFig. 25), NOTE:Youmayhavetomovetheaugeridlerpulley morethanoncetoobtainthecorrecttension. @Replacethebeltcover, @Checktheclutchcontrolcableadjustment. @Reconnectthesparkplugwire TRACTIONDRIVEBELT Thetractiondrivebelthasconstantspringpressureand doesnotrequireadjustment ® _DRIVE _,_.PULLEY AUGERIDLER_)_._.,_,_._I/2INCH .,/.,--.IMPELLER _,,,.JPLILLEY illlllllllii,,llll,iiiiijii FIG.25 .TRACTIONDRIVEBELT AUGER DRIVEBELTBELTGUIDE (LeftHand) BELTGUIDE (RightHand) DRIVE IDLERPULLEY _ERIDLER PULLEY FIG.26 Replacethetractiondrivebeltifitisslipping(seeTo ReplaceBeltsparagraphonpage20) !9
TOREPLACEBELTS Thedrivebeltsonthissnowthrowerareofspecial constructionandshouldbereplacedwithoriginal equipmentbeltsavailablefromyournearestSearsStore orServiceCenter. Youwillneedtheassistanceofasecondpersonwhile replacingthebelts, Drainthegasolinefromthefueltankbyremovingthefuel line..Drainthegasandreinstallthefuelline. CAUTION:DRAINTHEGASOLINEOUT-1 i DOORS,AWAYFROMFIREORFLAME. I AUGERDRIVEBELT Ifyoursnowthrowerwillnotdischargesnow,andthe augerdrivebeltisdamaged,replaceitasfollows: •Disconnectthesparkplugwire._ •Removethebeltcover(SeeFig27) ®Loosenthebeltguides(SeeFig28)andpullaway fromtheenginedrivepulley ®Loosenthenutontheaugeridlerpulley(SeeFig28) andpullidlerpulleyawayfromthebelt •Removebeltfromenginedrivepulley •Removetoptwoboltssecuringaugerhousingto motormountframe.Loosenbottomtwobolts,(See Fig.30,page21). •Augerhousingandmotormountframewillseparate, hingedbybottomtwobolts. •RemovebrakearmfromhousingDonotremove spring •Removeoldbeltfromtheaugerdrivepulley. •Installnewreplacementbeltofthesametypeontothe augerpulley. •ReinstallbrakearmintohousingEnsurebrakearmis fullyinsertedintohousingandbrakepadisridingin pulleygroove. •Positionbeltontoenginedrivepulley° ®Adjusttheaugerdrivebelt(seeToAdjustAugerDrive Beltparagraphonpage19). •Adjustthebeltguides(seeToAdjustTheBeltGuides paragraphonpage21) ®ReplacetoptwoboltsRe-tightenbottomtwobolts •Reinstallthebeltcover, •Checktheclutchcontrolcableadjustment(seepage 19). ®Reconnectthesparkplugwire. TRACTIONDRIVEBELT(SeeFig.28) Ifyoursnowthrowerwillnotmoveforward,checkthe tractiondrivebeltforwear,(Checkothercausesalsoin theTroubleShootingPointssection.)1Ithetractiondrive beltneedstobereplaced,proceedasfollows: 0 O O 0 O O O 0 O O O O O 0 @ BELT COVER/ 5/8INCH X112INCHSELF TAPPINGSCREW FIG.27 Hlljiji TRACTIONDRIVETRACTIONDRIVEBELT BELTGUIDE DRIVE BELT BELTGUIDE (RightHand) TRACTIONDRIVE IDLERPULLEY DRIVE PULLEY IDLER PULLEY FIGo28 Disconnectthesparkplugwire. Removethebeltcover Loosenbeltguidesandpullguidesawayfromthe enginedrivepulley. Loosennutonaugeridlerandpullaugeridlerpulley awayfrombelt. Removeaugerdrivebeltfromenginepulley Pullthetractiondrivebeltidlerpulleyawayfromthe drivebelt. Removedrivebelt., Positionnewreplacementbeltolthesametypeonto tractionpulley. Pullidlerpulleyawayfrombelt,allowingbelttobe positionedontoenginepulley ReleaseidlerpulleyEnsureidlerpulleyisproperty engagedwithbelt. Reinstallaugerdrivebeltonengine Adjustbeltguidesandtightenthemountingscrews (seeToAdiustTheBeltGuidesparagraphonpage 2f). Readjustaugeridlertoadjustbeet.Seepage19 Reinstallthebeltcover. Reconnectthesparkplugwire 2O