Toro Power Clear 721 QZR Snowthrower User manual

Category
Snow throwers
Type
User manual

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Toro Power Clear 721 QZR Snowthrower is a powerful and efficient machine designed to make snow removal a breeze. It features a 21-inch clearing width and a 13-inch intake height, allowing it to handle even heavy snowfalls with ease. The Quick Shoot control enables quick and easy adjustment of the chute direction, while the chute deflector helps prevent snow from being thrown onto unwanted areas. The electric start and recoil backup ensure easy starting in all conditions.

Toro Power Clear 721 QZR Snowthrower is a powerful and efficient machine designed to make snow removal a breeze. It features a 21-inch clearing width and a 13-inch intake height, allowing it to handle even heavy snowfalls with ease. The Quick Shoot control enables quick and easy adjustment of the chute direction, while the chute deflector helps prevent snow from being thrown onto unwanted areas. The electric start and recoil backup ensure easy starting in all conditions.

FormNo.3396-739RevA
PowerClear
®
721QZR/QZESnowthrower
ModelNo.38743—SerialNo.316000001andUp
ModelNo.38744—SerialNo.316000001andUp
Operator'sManual
Introduction
WARNING
CALIFORNIA
Proposition65Warning
Thisproductcontainsachemicalorchemicals
knowntotheStateofCaliforniatocausecancer,
birthdefects,orreproductiveharm.
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Thismachineisintendedtobeusedbyresidential
homeowners.Itisdesignedforremovingsnowfrom
pavedsurfaces,suchasdrivewaysandsidewalks,and
othersurfacesfortrafconresidentialorcommercial
properties.Itisnotdesignedforremovingmaterials
otherthansnow,norisitdesignedforclearingoffgravel
surfaces.
Readthisinformationcarefullytolearnhowtooperateand
maintainyourmachineproperlyandtoavoidinjuryand
machinedamage.Youareresponsibleforoperatingthe
machineproperlyandsafely.
YoumaycontactTorodirectlyatwww .Toro.comformachine
andaccessoryinformation,helpndingadealer,ortoregister
yourmachine.
Wheneveryouneedservice,genuineToroparts,oradditional
information,contactanAuthorizedServiceDealerorToro
CustomerServiceandhavethemodelandserialnumbersof
yourmachineready.Figure1identiesthelocationofthe
modelandserialnumbersonthemachine.Writethenumbers
inthespaceprovided.
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafetyalertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.
Figure2
1.Safetyalertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.
©2015—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.Toro.com.
OriginalInstructions(EN)
PrintedintheUSA
AllRightsReserved
*3396-739*A
Contents
Introduction..................................................................1
Safety...........................................................................3
SafetyandInstructionalDecals.................................3
Setup............................................................................4
1UnfoldingtheHandle............................................4
2InstallingtheDischargeChute................................4
3FillingtheEnginewithOil......................................5
4AdjustingtheControlCable...................................5
ProductOverview..........................................................6
Operation.....................................................................7
BeforeOperation.......................................................7
Safety.....................................................................7
FillingtheFuelTank................................................7
CheckingtheEngineOilLevel..................................7
DuringOperation......................................................8
Safety.....................................................................8
StartingtheEngine..................................................8
EngagingtheRotorBlades.......................................10
DisengagingtheRotorBlades..................................10
StoppingtheEngine...............................................10
AdjustingtheDischargeChuteandChute
Deector...........................................................10
ClearingaCloggedDischargeChute.........................11
OperatingTips......................................................11
AfterOperation........................................................11
Safety....................................................................11
PreventingFreeze-upafterUse.................................11
Maintenance.................................................................13
RecommendedMaintenanceSchedule(s)......................13
MaintenanceSafety.................................................13
AdjustingtheControlCable.....................................13
InspectingtheRotorBlades.....................................14
ChangingtheEngineOil.........................................14
ServicingtheSparkPlug..........................................15
ReplacingtheDriveBelt..........................................17
AdjustingtheQuickShoot™Control........................17
Storage........................................................................20
StoringtheSnowthrower.........................................20
2
Safety
Readandunderstandthecontentsofthemanualbefore
youstarttheengine.Makesureeveryoneusingthis
productknowshowtousetheproductandunderstands
thewarnings.
Donotputhandsorfeetnearmovingcomponentson
themachine.
Donotoperatemachinewithoutallguardsandother
safetyprotectivedevicesinplaceandworkingonthe
machine.
Keepclearofanydischargeopening.Keepbystandersa
safedistancefromthemachine.
Keepchildrenoutoftheoperatingareaandunderthe
watchfulcareofaresponsibleadultotherthanthe
operator.Neverallowchildrentooperatethemachine.
Shutthemachineoffbeforeunclogging,servicing,or
fueling.
SafetyandInstructionalDecals
Important:Safetyandinstructiondecalsarelocatednearareasofpotentialdanger.Replacedamageddecals.
94-2577
1.Toengagetherotorblades,holdthecontrolbaragainst
thehandle.
2.Todisengagetherotorblades,releasethecontrolbar.
115-5698
Orderpartno.117-9121
1.Cuttingdismembermenthazards,impellerandauger—do
notplaceyourhandinthechute;removetheignitionkey
andreadtheinstructionsbeforeservicingorperforming
maintenance.
117-9103
Orderpartno.117-6046
1.Warning—readthe
Operator'sManual.
6.EngineswitchOff
2.Cutting/dismemberment
hazard,impeller—stopthe
enginebeforeleavingthe
machine.
7.Primer
3.Thrownobject
hazard—keepbystanders
asafedistancefromthe
machine.
8.Pushtheprimerthree
timestoprimetheengine.
4.Fuelspillhazard—donot
tipmachinebackward.
9.ReadtheOperator's
Manualbeforechecking
engineoillevel.
5.EngineswitchOn
10.Plugthemachineinto
powertheelectricstarter.
3
Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescription
Qty.
Use
1
Nopartsrequired
Unfoldthehandle.
Screws
3
Chuteassembly
1
2
Dischargechutehandle1
Installthedischargechute.
1
UnfoldingtheHandle
NoPartsRequired
Procedure
1.Loosenthehandleknobs,pullouttheU-shapedhandle
locksuntilyoucanmovethehandlefreely,androtate
thehandletotheoperatingposition(Figure3).
Figure3
1.U-shapedhandlelock(2)
2.Handleknobs
2.InserttheendoftheU-shapedhandlelockintothe
openholeinthehandleandtightenthehandleknobs
untiltheyaresnug(Figure4).
Note:Thehandleknobscontainnylocnutsthat
requiremorepressuretotightenfullytopreventthe
handlefromcominglooseduringoperation.
Figure4
Important:Ensurethatyoudonotpinchorkink
thecontrolcable(Figure5).
Figure5
1.Controlcable
4
2
InstallingtheDischargeChute
Partsneededforthisprocedure:
3
Screws
1
Chuteassembly
1Dischargechutehandle
Procedure
Installthedischargechuteasshown(Figure6).
Figure6
1.Dischargechute
2.Screw(3)
Note:Foreasierinstallation,useasmallratchetwrenchto
tightenthescrews.
Important:Donotovertightenthescrews;otherwise
youmaydamagethedischargechuteandpreventit
fromturningfreely.
3
FillingtheEnginewithOil
NoPartsRequired
Procedure
Yourmachinedoesnotcomewithoilintheengine,butit
doescomewithabottleofoil.
Important:Beforestartingtheengine,lltheengine
withoil.
Note:Thebottleofoilmaycontainmorethanisrequired.
Donotoverllorunderlltheengine.
Maxll:.0.6l(20oz),type:automotivedetergentoilwithan
APIserviceclassicationofSJ,SL,orhigher.
UseFigure7belowtoselectthebestoilviscosityforthe
outdoortemperaturerangeexpected:
Figure7
1.Movethemachinetoalevelsurface.
2.Cleanaroundtheoilllcap(Figure8).
Figure8
1.Oilllcap
3.Unscrewtheoilllcapandremoveit.
4.Withthemachineintheoperatingposition,carefully
pouroilintothecrankcaseuntilthepointofoverow .
Note:Youmaytipthemachineforward(handleup)
tomakeaddingoileasier.Remembertoreturnthe
machinetotheoperatingpositionbeforecheckingthe
oillevel.
Important:Donottipthemachinealltheway
forwardontoitsnose,orfuelmayleakoutofthe
machine.
5.Wait3minutesfortheoiltosettleandaddenoughto
bringittothepointofoverow.
6.Screwtheoilllcapintotheoilllholeandtightenit
securely.
5
4
AdjustingtheControlCable
NoPartsRequired
Procedure
RefertoAdjustingtheControlCable(page13).
ProductOverview
Figure9
1.Chutedeectortrigger
8.Electric-startbutton
2.Dischargechute9.Ignitionkey
3.Fueltankcap
10.Chokelever
4.Controlbar11.Oildrainplug
5.QuickShoot™control12.Oilllcap
6.Recoilstarthandle
13.Chutedeector
7.Primer
6
Operation
BeforeOperation
Safety
Useextensioncordsandreceptaclesasspeciedby
themanufacturerforallmachineswithelectricstarting
motors.
Donotoperatethemachinewithoutwearingadequate
wintergarments.Avoidloosettingclothingthatcanget
caughtinmovingparts.Wearslipresistantfootwearthat
willimprovefootingonslipperysurfaces.
Alwayswearsafetyglassesoreyeshieldsduringoperation
orwhileperforminganadjustmentorrepairtoprotect
eyesfromforeignobjectsthatmaybethrownfromthe
machine.
Thoroughlyinspecttheareawherethemachineistobe
usedandremovealldoormats,sleds,boards,wires,and
otherforeignobjects.
Ifashield,safetydevice,ordecalisdamaged,illegible,or
lost,repairorreplaceitbeforebeginningoperation.Also,
tightenanyloosefasteners.
DANGER
Gasolineisextremelyammableandexplosive.A
reorexplosionfromgasolinecanburnyouand
others.
Topreventastaticchargefromignitingthe
gasoline,placethecontainerand/ormachine
onthegroundbeforelling,notinavehicleor
onanobject.
Fillthetankoutdoorswhentheengineiscold.
Wipeupspills.
Donothandlegasolinewhensmokingoraround
anopenameorsparks.
Storegasolineinanapprovedfuelcontainer,out
ofthereachofchildren.
Donottipthemachineeitherforwardor
backwardwithfuelinthefueltank;otherwise,
fuelmayleakoutofthemachine.
FillingtheFuelTank
Forbestresults,useonlyclean,fresh(lessthan30days
old),unleadedgasolinewithanoctaneratingof87or
higher((R+M)/2ratingmethod).
Ethanol:Gasolinewithupto10%ethanol(gasohol)
or15%MTBE(methyltertiarybutylether)byvolume
isacceptable.EthanolandMTBEarenotthesame.
Gasolinewith15%ethanol(E15)byvolumeisnot
approvedforuse.Neverusegasolinethatcontainsmore
than10%ethanolbyvolume,suchasE15(contains15%
ethanol),E20(contains20%ethanol),orE85(contains
85%ethanol).Usingunapprovedgasolinemaycause
performanceproblemsand/orenginedamagewhichmay
notbecoveredunderwarranty.
Donotusegasolinecontainingmethanol.
Donotstorefueleitherinthefueltankorfuelcontainers
overthewinterunlessafuelstabilizerisused.
Donotaddoiltogasoline.
Figure10
1.1/4inch(6mm)
Note:Forbestresults,purchaseonlythequantityofgasoline
thatyouexpecttousein30days.Otherwise,youmayadd
fuelstabilizertonewlypurchasedgasolinetokeepitfreshfor
upto6months.
CheckingtheEngineOilLevel
ServiceInterval:Beforeeachuseordaily—Checktheengine
oillevelandaddoilifnecessary.
1.Movethemachinetoalevelsurface.
2.Cleanaroundtheoilllcap(Figure11).
Figure11
1.Oilllcap
3.Unscrewtheoilllcapandremoveit.
7
4.Iftheoillevelislow,keepthemachineintheoperating
positionandcarefullypouroilintothecrankcase
untilthepointofoverow .Wait3minutesforthe
oiltosettleandaddenoughtobringittothepoint
ofoverow .(Max.ll:20oz.(0.6l),type:SAE30
detergentoilwithanAPIserviceclassicationofSJ,
SL,orhigher.)
Note:Youmaytipthemachineforward(handleup)
tomakeaddingoileasier.Remembertoreturnthe
machinetotheoperatingpositionbeforecheckingthe
oillevel.
Important:Donottipthemachinealltheway
forwardontoitsnose,orfuelmayleakoutofthe
machine.
5.Screwtheoilllcapintotheoilllholeandhand
tightenitsecurely.
DuringOperation
Safety
Rotatingaugerbladescaninjurengersorhands.
Staybehindthehandlesandawayfromthedischarge
openingwhileoperatingthemachine.Keepyourface,
hands,feet,andanyotherpartofyourbodyor
clothingawayfrommovingorrotatingparts.
Neverdirectthedischargetowardpeopleorareaswhere
propertydamagecanoccur.
Exercisecautiontoavoidslippingorfalling.Alwaysbe
sureofyourfooting,andkeeparmholdonthehandles.
Walk;neverrun.
Exerciseextremecautionwhenoperatingonslopes.
Neveroperatethemachinewithoutgoodvisibilityor
light.
Lookbehindandusecarewhenbackingupwiththe
machine.
Whennotactivelyclearingsnow ,disengagepowertothe
rotorblades.
Useextensioncordsandreceptaclesasspeciedby
themanufacturerforallmachineswithelectricstarting
motors.
Donotattempttoclearsnowfromagravelorcrushed
rocksurface.Thisproductisintendedforuseonlyon
pavedsurfaces.
Donotusethemachineonaroof.
Neverattempttomakeanyadjustmentswhiletheengine
isrunning(exceptwhenspecicallyrecommendedby
manufacturer).
Stayalertforhiddenhazardsortrafc.
Afterstrikingaforeignobject,stoptheengine,remove
theignitionkey,thoroughlyinspectthemachineforany
damage,andrepairthedamagebeforerestartingand
operatingthemachine.
Ifthemachineshouldstarttovibrateabnormally,stop
theengineandcheckimmediatelyforthecause.
Donotruntheengineindoors,exceptwhenstarting
theengineandfortransportingthemachineinorout
ofthebuilding.Opentheoutsidedoors;exhaustfumes
aredangerous.
Donotoverloadthemachinecapacitybyattemptingto
clearsnowattoofastarate.
Nevertouchahotengineormufer.
Thoroughlyinspecttheelectricalcordbeforeplugging
itintoapowersource.Ifthecordisdamaged,donot
useittostartthemachine.Replacethedamagedcord
immediately.Unplugthepowercordwheneveryouare
notstartingthemachine.
StartingtheEngine
1.TurntheignitionkeyclockwisetotheOnposition
(Figure12).
Figure12
2.Pulloutthechokelever(Figure13andFigure14).
Figure13
1.Chokelever
8
Figure14
1.Symbolsonthechokeleverindicatingtopulloutthechoke
levertoactivatethechoke.
3.Firmlypushintheprimerwithyourthumbasindicated
bythechartbelow,holdingintheprimerforasecond
beforereleasingiteachtime(Figure15).
Numberofprimes
Temperature
3
0°F(-18°C)orabove
6
Below0°F(-18°C)
Figure15
Note:Removeyourglovewhenyoupushinthe
primersothataircannotescapefromtheprimerhole.
Important:Donotusetheprimerorthechokeif
theenginehasbeenrunningandishot.Excessive
primingmayoodtheengineandpreventitfrom
starting.
4.Connectanextensioncordtoapowersourceandthe
machine,andpushtheelectric-startbutton(Figure16),
orpulltherecoilstarthandle(Figure17).
Figure16
Note:UseonlyaUL-listed,16-gaugeextensioncord
recommendedforoutdoorusethatisnotlongerthan
15m(50feet).
WARNING
Theelectricalcordcanbecomedamaged,
causingashockorre.
Thoroughlyinspecttheelectricalcordbefore
pluggingitintoapowersource.Ifthe
cordisdamaged,donotuseittostartthe
machine.Replaceorrepairthedamagedcord
immediately.ContactanAuthorizedService
Dealerforassistance.
Figure17
Important:Runtheelectricstarternomore
than10timesatintervalsof5secondson,then
5secondsoff.Runningtheelectricstarter
extensivelycanoverheatanddamageit.Ifthe
enginedoesnotstartafterthisseriesofattempts,
waitatleast40minutestoallowthestartertocool
beforeattemptingtostartitagain.Iftheengine
doesnotstartafterthesecondseriesofattempts,
takethemachinetoanAuthorizedServiceDealer
forservice.
Note:Ifyoupulltherecoilhandleandfeelno
resistance,thestartermaybefrozen.Thawoutthe
starterbeforeattemptingtostartthemachine.
5.Whiletheengineisrunning,pushinthechokelever
slowly.
6.Unplugtheextensioncordfromthepowersourceand
themachine.
9
CAUTION
Ifyouleavethemachinepluggedintoapower
source,someonecaninadvertentlystartthe
machineandinjurepeopleordamageproperty.
Unplugthepowercordwheneveryouarenot
startingthemachine.
EngagingtheRotorBlades
Toengagetherotorblades,holdthecontrolbaragainstthe
handle(Figure18).
Figure18
1.Controlbar
DisengagingtheRotorBlades
Todisengagetherotorblades,releasethecontrolbar(Figure
19).
Figure19
StoppingtheEngine
Tostoptheengine,turntheignitionkeycounterclockwiseto
theOffposition(Figure20).
Figure20
AdjustingtheDischargeChute
andChuteDeector
Toadjustthedischargechute,pressthetriggeroftheQuick
Shoot™controlontherighthandsideofthehandleand
moveitupordownalongthehandle.Movingthecontrol
downthehandlerotatesthedischargechutetotheleft;
10
movingthecontrolupthehandlerotatesthedischargechute
totheright(Figure21).
Figure21
Toraiseorlowertheangleofthechutedeector,pressthe
triggeronthechutedeectorandmovethechutedeector
upordown(Figure22).
Figure22
1.Chutedeectortrigger2.Chutedeector
ClearingaCloggedDischarge
Chute
WARNING
Handcontactwiththerotatingrotorbladesinside
thedischargechuteisthemostcommoncauseof
injuryassociatedwithmachines.Neveruseyour
handtocleanoutthedischargechute.
Toclearthechute:
Shuttheengineoff!
Wait10secondstobesuretherotorbladeshavestopped
rotating.
Alwaysuseacleanouttool,notyourhands.
OperatingTips
WARNING
Therotorbladescanthrowstones,toys,andother
foreignobjectsandcauseseriouspersonalinjuryto
theoperatorortobystanders.
Keeptheareatobeclearedfreeofallobjects
thattherotorbladescouldpickupandthrow.
Keepallchildrenandpetsawayfromthearea
ofoperation.
Removethesnowassoonaspossibleafteritfalls.
Ifthemachinedoesnotpropelitselfforwardonslippery
surfacesorinheavysnow ,pushforwardonthehandle,
butallowthemachinetoworkatitsownpace.
Overlapeachswathtoensurecompletesnowremoval.
Dischargethesnowdownwindwheneverpossible.
AfterOperation
Safety
Neverstorethemachinewithfuelinthefueltankinsidea
buildingwhereignitionsourcesarepresent,suchashot
waterheaters,spaceheaters,orclothesdryers.Allowthe
enginetocoolbeforestoringinanyenclosure.
Whenstoringthemachineformorethan30days,referto
theStoragesectionforimportantdetails.
PreventingFreeze-upafterUse
Lettheenginerunforafewminutestopreventmoving
partsfromfreezing.Stoptheengine,waitforallmoving
partstostop,andremoveiceandsnowfromthemachine.
Cleanoffanysnowandicefromthebaseofthechute.
Rotatethedischargechuteleftandrighttofreeitfrom
anyicebuildup.
11
WiththeignitionkeyintheOffposition,pulltherecoil
starterhandleseveraltimesorconnecttheelectricalcord
toapowersourceandthemachineandpushtheelectric
startbuttononcetopreventtherecoilstarterand/orthe
electricstarterfromfreezingup.
Insnowyandcoldconditions,somecontrolsandmoving
partsmayfreeze.Donotuseexcessiveforcewhen
tryingtooperatefrozencontrols.Ifyouhavedifculty
operatinganycontrolorpart,starttheengineandletit
runforafewminutes.
1
2
G016654
3
4
Figure23
12
Maintenance
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Afterthersthour
Checkthecontrolcableandadjustitifnecessary.
Checkforloosefastenersandtightenthemifnecessary.
Aftertherst2hours
Changetheengineoil.
Beforeeachuseordaily
Checktheengineoillevelandaddoilifnecessary.
Yearly
Checkthecontrolcableandadjustitifnecessary.
InspecttherotorbladesandhaveanAuthorizedServiceDealerreplacetherotor
bladesandscraperifnecessary.
Changetheengineoil.
Checkthesparkplugandreplaceitifnecessary.
Checkforloosefastenersandtightenthemifnecessary.
HaveanAuthorizedServiceDealerinspectthedrivebeltandreplaceitifnecessary.
Yearlyorbeforestorage
Preparethemachineforstorage.
MaintenanceSafety
Readthefollowingsafetyprecautionsbeforeperformingany
maintenanceonthemachine:
Beforeperforminganymaintenance,service,or
adjustment,stoptheengineandremovethekey.Ifmajor
repairsareeverneeded,contactanAuthorizedService
Dealer.
Checkallfastenersatfrequentintervalsforproper
tightnesstobesurethemachineisinsafeworking
condition.
Maintainorreplacesafetyandinstructionlabels,as
necessary.
Donotchangethegovernorsettingsontheengine.
PurchaseonlygenuineTororeplacementpartsand
accessories.
AdjustingtheControlCable
CheckingtheControlCable
ServiceInterval:Afterthersthour—Checkthecontrol
cableandadjustitifnecessary.
Yearly—Checkthecontrolcableandadjustitif
necessary.
Movethecontrolbarbacktowardthehandletoremovethe
slackinthecontrolcable(Figure24).
Figure24
1.Controlbar2.2mmto3mm(1/16-inch
to1/8-inch)gap
Note:Ensurethata2mmto3mm(1/16-inchto1/8-inch)
gapexistsbetweenthecontrolbarandthehandle(Figure24).
Important:Thecontrolcablemustcontainsomeslack
whenyoudisengagethecontrolbarfortherotorblades
tostopproperly.
AdjustingtheControlCable
1.Slideupthespringcoverandunhookthespringfrom
theadjusterlink(Figure25).
13
Figure25
1.Adjusterlink
3.Springcover
2.Z-tting
4.Unhookthespringhere.
Note:Youcanpulluptheadjusterlinkandcableto
makeunhookingthespringeasier.
2.MovetheZ-ttingtoahigherorlowerholeonthe
adjusterlinkasneededtoobtainthe1/16-inchto
1/8-inch(2mmto3mm)gapbetweenthecontrolbar
andthehandle(Figure24).
Note:MovingtheZ-ttinghigherdecreasesthegap
betweenthecontrolbarandthehandle;movingit
lowerincreasesthegap.
3.Hookthespringtotheadjusterlinkandslidethespring
coverovertheadjusterlink.
4.Checktheadjustment;refertoCheckingtheControl
Cable.
Note:Afterextendeduse,thedrivebeltmaywear
andloseitsproperbelttension.Ifthedrivebeltslips
(continuouslysqueals)underaheavyload,disconnect
thespringfromtheadjustorlinkandmovetheupper
endofthespringtotheholethatisfurtherfrom
thepivotpointinthecontrolbar(Figure26).Then
connectthespringtotheadjustorlinkandadjustthe
controlcable.
Figure26
1.Removetheupperendof
springfromthishole
3.Pivotpoint
2.Inserttheupperendof
springintothishole
4.Upperendofspring
Note:Thebeltmayslip(squeal)inwetconditions;
todryoutthedrivesystem,starttherotorandrunit
withoutaloadfor30seconds.
InspectingtheRotorBlades
ServiceInterval:Yearly—Inspecttherotorbladesandhave
anAuthorizedServiceDealerreplacethe
rotorbladesandscraperifnecessary.
Beforeeachsession,inspecttherotorbladesforwear.When
arotorbladeedgehasworndowntothewearindicatorhole,
haveanAuthorizedServiceDealerreplacetherotorblades
andthescraper(Figure27).
Figure27
1.Thewearindicatorholeis
intact;youdonotneedto
replacetherotorblades.
2.Thewearindicatorholeis
exposed;replacetherotor
blades.
ChangingtheEngineOil
ServiceInterval:Aftertherst2hours
Yearly
14
Runtheengineafewminutesbeforechangingtheoiltowarm
it.Warmoilowsbetterandcarriesmorecontaminants.
1.Siphonthefuelfromthefueltankintoanapproved
fuelcontainer,orruntheengineuntilitstops.
2.Movethemachinetoalevelsurface.
3.Placeanoildrainpanundertheoildrainplug,remove
theoildrainplug,andtipthemachinebackwardand
draintheusedoilintheoildrainpanFigure28).
Figure28
4.Afterdrainingtheusedoil,returnthemachinetothe
operatingposition.
5.Installtheoildrainplugandtightenitsecurely.
6.Cleanaroundtheoilllcap(Figure29).
Figure29
1.Oilllcap
7.Unscrewtheoilllcapandremoveit(Figure29).
8.Withthemachineintheoperatingposition,carefully
pouroilintotheoilllholetothepointofoverow
(Figure31).
Note:Youmaytipthemachineforward(handleup)
tomakeaddingoileasier.Remembertoreturnthe
machinetotheoperatingpositionbeforecheckingthe
oillevel.
Important:Donottipthemachinealltheway
forwardontoitsnose,orfuelmayleakoutofthe
machine.
Maxll:0.6l(20oz.),type:automotivedetergentoil
withanAPIserviceclassicationofSJ,SL,orhigher.
UseFigure30belowtoselectthebestoilviscosityfor
theoutdoortemperaturerangeexpected:
Figure30
Figure31
9.Wait3minutesfortheoiltosettleandaddenoughto
bringittothepointofoverow.
10.Screwtheoilllcapintotheoilllhole,andhand
tightenitsecurely.
11.Wipeupanyspilledoil.
12.Disposeoftheusedoilproperlyatalocalrecycling
center.
ServicingtheSparkPlug
ServiceInterval:Yearly—Checkthesparkplugandreplace
itifnecessary.
UseaNGKBPR6ESorChampionRN9YCsparkplug
orequivalent.
1.Stoptheengineandwaitforallmovingpartstostop.
2.Rotatethedischargechutesothatitfacesforward.
3.Removethedischargechute,thedischargechute
handle,andthechutesealbyremovingthe3large
screwsandonesmallscrew(Figure32).
15
Figure32
1.Fueltankcap
4.Smallscrew
2.Largescrews(3)5.Chuteseal
3.Dischargechute
4.Removethe4screwsthatsecuretheshroud(Figure33).
Figure33
1.Screw(4)3.Sparkplug
2.Shroud4.Spark-plugwire
5.Removethefueltankcap.
6.Removetheshroud(Figure33).
7.Installthefueltankcap.
8.Disconnectthewirefromthesparkplug.
9.Cleanaroundthesparkplug.
10.Removethesparkplugfromthecylinderhead.
Important:Replaceacracked,fouled,ordirty
sparkplug.Donotcleantheelectrodesbecause
gritenteringthecylindercandamagetheengine.
11.Setthegapontheplugto0.030inch(0.76mm)(Figure
34).
Figure34
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
12.Installthesparkplugandtorqueitto20–22ft-lb
(27–30N-m).
13.Connectthewiretothesparkplug.
Note:Ensurethatthebreathertubeisroutedabove
thesparkplugwireasshowninFigure35.
Figure35
1.Breathertube
2.Carburetordrainbolt
14.Removethefueltankcap.
15.Installtheshroudwiththescrewsyouremovedinstep
4.
Note:Ensurethattheupperandlowershroudst
togetherinthesidegrooves.
16.Installthefueltankcap.
17.Installthechuteseal,thedischargechute,andthe
dischargechutehandleontothemachineusingthe
hardwareyouremovedinstep3.
16
Note:Thesmallscrewgoesthroughthesmallhole
inthechutesealatthefrontofthedischargechute
opening.
ReplacingtheDriveBelt
Ifdrivebeltbecomesworn,oil-soaked,excessivelycracked,
frayed,orotherwisedamaged,replacethebelt.
1.Removethedrivebeltcoverbyremovingthe3boltsas
showninFigure36.
Figure36
1.Drivebeltcover6.Drivebelt
2.Bolt(3)7.Rotorshaft
3.Rotorpulleybolt
8.Brakespring(unhookfrom
idlerarmhere)
4.Curvedwasher
9.Idlerpulley
5.Rotorpulley10.Enginepulley
2.Unhookthebrakespringfromtheidlerarmtorelease
thebelttension(Figure36).
3.Removethescrewandcurvedwasherthatholdsthe
rotorpulley(Figure36).
4.Removetherotorpulleyandthedrivebelt(Figure36).
5.Installthenewdrivebelt,routingitasshownin(Figure
37).
Figure37
1.Brakespring(installon
idlerarmhere)
3.Enginepulley
2.Idlerpulley4.Rotorpulley
Note:Routethenewdrivebeltrstaroundtheengine
pulley,thentheidlerpulley,andnallyaroundthe
looserotorpulleypositionedjustabovetherotorshaft
(Figure36).
6.Installtherotorpulleyontotherotorshaft(Figure36).
7.Installthecurvedwasherandtherotorpulleyboltand
tightenthemsecurely(Figure36).
Note:Theconcavesideofthecurvedwashergoes
againsttheoutsideofthepulley.
8.Installthebrakespringontotheidlerarm(Figure37).
9.Installthedrivebeltcoverwiththeboltsyouremoved
instep1.
Note:Ensurethatthedrivebeltisproperlyadjusted
andoperating;refertoCheckingtheControlCableand
AdjustingtheControlCable.
AdjustingtheQuickShoot™
Control
Ifthereismorethan1/2inch(13mm)ofslackintheQuick
Shootcable(Figure38)orthedischargechutedoesnotrotate
leftandrightinequalangles,adjusttheQuickShootcontrol
cables.
Figure38
1.1/2inch(13mm)maximumslack
1.LoosenthetwoQuickShootcontrolcableclamps
(Figure39).
17
Figure39
1.Cableclamps
2.PositiontheQuickShootcontrolbetweenthetwo
arrowslocatedontherighthandsideoftheupper
handle(Figure40).
Figure40
1.Arrows
3.Rotatethedischargechutesothatitfacesstraight
aheadandthearrowonthebackofthedischargechute
alignswiththearrowontheshroud(Figure41).
Figure41
18
4.Holdthedischargechuteinthestraight-aheadposition,
pullthelowercablecasingdownwarduntilyouremove
theslackinthecable,andtightenthescrewonthe
lowercableclampsecurely(Figure42).
Figure42
1.Lowercablecasing
5.Pulltheuppercablecasingforwarduntilyouremove
theslackinthecable,andtightenthescrewonthe
uppercableclampsecurely(Figure43).
Figure43
1.Uppercablecasing
Note:Donotover-tensionthecables.Ifthecables
areover-tensioned,theQuickShootwillbehardto
operate.
19
Storage
StoringtheSnowthrower
WARNING
Gasolinefumesarehighlyammable,explosive,
anddangerousifinhaled.Ifyoustorethe
machineinanareawithanopename,the
gasolinefumesmayigniteandcausean
explosion.
Donotstorethemachineinahouse(living
area),basement,oranyotherareawhereignition
sourcesmaybepresent,suchashotwaterand
spaceheaters,clothesdryers,furnaces,and
otherlikeappliances.
Donottipthemachinebackwardwithfuelin
thefueltank;otherwise,fuelmayleakoutof
themachine.
1.Onthelastrefuelingoftheseason,addfuelstabilizer
tofreshfuelasdirectedbytheenginemanufacturer.
2.Runtheenginefor10minutestodistributethe
conditionedfuelthroughthefuelsystem.
3.Stoptheengine,allowittocool,andsiphonthefuel
tankorruntheengineuntilitstops.
4.Starttheengineandrunituntilitstops.
5.Chokeorprimetheengine,startitathirdtime,and
runtheengineuntilitwillnotstart.
6.Drainthefuelinthecarburetorthroughthecarburetor
drainbolt(Figure35)intoanapprovedgasoline
container.
7.Disposeofunusedfuelproperly.Recycleitaccording
tolocalcodes,oruseitinyourautomobile.
8.Whiletheengineisstillwarm,changetheengineoil.
RefertoChangingtheEngineOil.
9.Removethesparkplug.
10.Squirt2teaspoonsofoilintothesparkplughole.
11.Installthesparkplugbyhandandthentorqueitto
20–22ft-lb(27–30N-m).
12.WiththeignitionkeyintheOffposition,pulltherecoil
starterslowlytodistributetheoilontheinsideofthe
cylinder.
13.Cleanthemachine.
14.Touchupchippedsurfaceswithpaintavailablefroman
AuthorizedServiceDealer.Sandaffectedareasbefore
painting,andusearustpreventativetopreventthe
metalpartsfromrusting.
15.Tightenanyloosefasteners.Repairorreplaceany
damagedparts.
16.Coverthemachineandstoreitinaclean,dryplace
outofthereachofchildren.Allowtheenginetocool
beforestoringitinanyenclosure.
20
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Toro Power Clear 721 QZR Snowthrower User manual

Category
Snow throwers
Type
User manual
This manual is also suitable for

Toro Power Clear 721 QZR Snowthrower is a powerful and efficient machine designed to make snow removal a breeze. It features a 21-inch clearing width and a 13-inch intake height, allowing it to handle even heavy snowfalls with ease. The Quick Shoot control enables quick and easy adjustment of the chute direction, while the chute deflector helps prevent snow from being thrown onto unwanted areas. The electric start and recoil backup ensure easy starting in all conditions.

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