Toro Power Clear 721 R-C Commercial Snowthrower User manual
- Category
- Snow throwers
- Type
- User manual
Toro Power Clear 721 R-C Commercial Snowthrower is designed for removing snow from paved surfaces, driveways and sidewalks. It can handle up to 5,000 ft above sea level with the High Altitude Kit installed, preventing spark plug fouling and hard starting. The safety features include a safety-alert symbol that warns of potential hazards. The snowthrower is powered by Toro's Premium 4-cycle OHV engine and delivers a clearing width of 21 inches and a clearing depth of 13 inches.
Toro Power Clear 721 R-C Commercial Snowthrower is designed for removing snow from paved surfaces, driveways and sidewalks. It can handle up to 5,000 ft above sea level with the High Altitude Kit installed, preventing spark plug fouling and hard starting. The safety features include a safety-alert symbol that warns of potential hazards. The snowthrower is powered by Toro's Premium 4-cycle OHV engine and delivers a clearing width of 21 inches and a clearing depth of 13 inches.
FormNo.3415-634RevA
PowerClear
®
721R-CCommercialSnowthrower
ModelNo.38751—SerialNo.402082000andUp
Operator'sManual
Introduction
Thismachineisintendedtobeusedbyresidential
homeowners.Itisdesignedprimarilyforremoving
snowfrompavedsurfaces,suchasdrivewaysand
sidewalks,andothersurfacesfortrafconresidential
orcommercialproperties.Itisnotdesignedfor
removingmaterialsotherthansnow,norisitdesigned
forclearinggravelsurfaces.
Note:Themachinemayleaverubbermarkson
newbrushedorlight-coloredconcrete.Testonan
inconspicuouslocationbeforeuse.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely.
YoumaycontactTorodirectlyatwww.T oro.com
forproductsafetyandoperationtrainingmaterials,
accessoryinformation,helpndingadealer,orto
registeryourproduct.
Wheneveryouneedservice,genuineT oroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
Important:Withyoursmartphoneortablet,scan
theQRcodeontheserialnumberdecaltoaccess
warranty,parts,andotherproductinformation.
g216757
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause
seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.
g000502
Figure2
1.Safety-alertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
WARNING
CALIFORNIA
Proposition65Warning
Thisproductcontainsachemical
orchemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orreproductiveharm.
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Important:Ifyouareusingthismachineabove
1500m(5,000ft)foracontinuousperiod,ensure
thattheHighAltitudeKithasbeeninstalled
sothattheenginemeetsCARB/EPAemission
regulations.TheHighAltitudeKitincreases
engineperformancewhilepreventingspark-plug
fouling,hardstarting,andincreasedemissions.
Onceyouhaveinstalledthekit,attachthe
high-altitudelabelnexttotheserialdecalonthe
machine.ContactanyAuthorizedToroService
DealertoobtaintheproperHighAltitudeKitand
high-altitudelabelforyourmachine.Tolocate
adealerconvenienttoyou,accessourwebsite
©2017—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.Toro.com.
OriginalInstructions(EN)
PrintedinMexico
AllRightsReserved
*3415-634*A
atwww.Toro.comorcontactourToroCustomer
CareDepartmentatthenumber(s)listedinyour
EmissionControlWarrantyStatement.
Removethekitfromtheengineandrestorethe
enginetoitsoriginalfactorycongurationwhen
runningtheengineunder1500m(5,000ft).Do
notoperateanenginethathasbeenconverted
forhigh-altitudeuseatloweraltitudes;otherwise,
youcouldoverheatanddamagetheengine.
Ifyouareunsurewhetherornotyourmachinehas
beenconvertedforhigh-altitudeuse,lookforthe
followinglabel(Figure3).
decal127-9363
Figure3
ItisaviolationofCaliforniaPublicResourceCode
Section4442or4443touseoroperatetheengineon
anyforest-covered,brush-covered,orgrass-covered
landunlesstheengineisequippedwithaspark
arrester,asdenedinSection4442,maintainedin
effectiveworkingorderortheengineisconstructed,
equipped,andmaintainedforthepreventionofre.
Contents
Introduction...............................................................1
Safety.......................................................................2
GeneralSafety...................................................2
SafetyandInstructionalDecals..........................3
Setup........................................................................4
UnfoldingtheHandle..........................................4
InstallingtheDischargeChute............................4
FillingtheEnginewithOil....................................4
AdjustingtheControlCable................................4
ProductOverview.....................................................5
Operation..................................................................5
BeforeOperation...................................................5
BeforeOperationSafety.....................................5
FillingtheFuelT ank............................................6
CheckingtheEngine-OilLevel............................6
DuringOperation...................................................7
DuringOperationSafety.....................................7
StartingtheEngine.............................................7
EngagingtheRotorBlades.................................8
DisengagingtheRotorBlades............................8
ShuttingOfftheEngine.......................................9
AdjustingtheDischargeChuteandChute
Deector.........................................................9
ClearingaCloggedDischargeChute..................9
OperatingTips...................................................9
AfterOperation....................................................10
AfterOperationSafety......................................10
PreventingFreeze-upafterUse........................10
Maintenance...........................................................10
RecommendedMaintenanceSchedule(s)...........10
MaintenanceSafety..........................................10
AdjustingtheControlCable...............................11
InspectingtheRotorBlades..............................12
ChangingtheEngineOil...................................12
ServicingtheSparkPlug...................................14
ReplacingtheDriveBelt...................................15
Storage...................................................................17
PreparingtheMachineforStorage...................17
Safety
GeneralSafety
ThismachinecomplieswithANSIB71.3specications.
•Readandunderstandthecontentsofthis
Operator’sManualbeforeyoustarttheengine.
Ensurethateveryoneusingthisproductknows
howtousetheproductandunderstandsthe
warnings.
•Donotputyourhandsorfeetnearmoving
componentsonthemachine.
•Donotoperatethemachinewithoutallguards
andothersafetyprotectivedevicesinplaceand
workingonthemachine.
•Keepclearofanydischargeopening.Keep
bystandersasafedistanceawayfromthe
machine.
•Keepchildrenoutoftheoperatingarea.Never
allowchildrentooperatethemachine.
•Shutofftheenginebeforeunclogging,servicing,
orfuelingthemachine.
Youcanndadditionalitemsofsafetyinformationin
theirrespectivesectionsthroughoutthismanual.
2
SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea
ofpotentialdanger.Replaceanydecalthatisdamagedormissing.
decal94-2577
94-2577
1.Toengagetherotorblades,holdthecontrolbaragainst
thehandle.
2.Todisengagetherotorblades,releasethecontrolbar.
decal115-5660
115-5660
1.Cutting/dismembermenthazardsofhandorfoot,impeller
andauger—donotplaceyourhandinthechute;remove
theignitionkeyandreadtheinstructionsbeforeservicing
orperformingmaintenance.
decal117-9102
117-9102(Model38741only)
OrderPartNo.117-6036
1.Warning—readthe
Operator'sManual.
6.Engineswitchoff
2.Cutting/dismemberment
hazard,impeller—shutoff
theengineandwaitfor
theaugertostopbefore
leavingthemachine.
7.Primer
3.Thrownobject
hazard—keepbystanders
asafedistanceawayfrom
themachine.
8.Pushtheprimer3timesto
primetheengine.
4.Fuelspillhazard—donot
tipmachinebackward.
9.ReadtheOperator's
Manualbeforechecking
theengine-oillevel.
5.Engineswitchon
3
ProductOverview
g021993
Figure7
1.Dischargechute6.Primer
2.Discharge-chutehandle7.Ignitionkey
3.Fuel-tankcap
8.Chokelever
4.Controlbar9.Oil-drainplug
5.Recoil-starthandle
10.Oil-llcap
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
BeforeOperation
BeforeOperationSafety
•Forelectric-startmodelsonly:Useextension
cordsandreceptaclesasspeciedinthemanual.
Thoroughlyinspecttheelectricalcordbefore
pluggingitintoapowersource.Ifthecordis
damaged,donotuseit.Replacethedamaged
cord.Unplugthepowercordwheneveryouare
notstartingthemachine.
•Wearadequatewintergarmentswhenever
youoperatethemachine.Wearsubstantial,
slip-resistantfootwearthatimprovesfootingon
slipperysurfaces.Avoidloose-ttingclothingthat
cangetcaughtinmovingparts.
•Alwaysweareyeprotectionduringoperationor
whileperforminganadjustmentorrepairtoprotect
youreyesfromforeignobjectsthatthemachine
maythrow.
•Thoroughlyinspecttheareawhereyouwillusethe
machine,andremovealldoormats,sleds,boards,
wires,andotherforeignobjects.
•Ifashield,safetydevice,ordecalisdamaged,
illegible,ormissing,repairorreplaceitbefore
beginningoperation.Alsotightenanyloose
fasteners.
DANGER
Fuelisextremelyammableandexplosive.A
reorexplosionfromfuelcanburnyouand
others.
•Topreventastaticchargefromignitingthe
fuel,placethecontainerand/ormachineon
thegroundbeforelling,notinavehicle
oronanobject.
•Fillthetankoutdoorswhentheengineis
cold.Wipeupspills.
•Donothandlefuelwhensmokingor
aroundanopenameorsparks.
•Storefuelinanapprovedfuelcontainer,
outofthereachofchildren.
•Donottipthemachineeitherforward
orbackwardwithfuelinthefueltank;
otherwise,fuelmayleakoutofthe
machine.
5
FillingtheFuelTank
•Forbestresults,useonlyclean,fresh(lessthan
30daysold),unleadedgasolinewithanoctane
ratingof87orhigher((R+M)/2ratingmethod).
•Oxygenatedfuelwithupto10%ethanolor15%
MTBEbyvolumeisacceptable.
•Donotuseethanolblendsofgasoline(such
asE15orE85)withmorethan10%ethanolby
volume.Performanceproblemsand/orengine
damagemayresultwhichmaynotbecovered
underwarranty.
•Donotusegasolinecontainingmethanol.
•Donotstorefueleitherinthefueltankorfuel
containersoverthewinterunlessyouuseafuel
stabilizer.
•Donotaddoiltogasoline.
Donotllabovethebottomofthefueltank(Figure8).
g216203
Figure8
Note:Forbestresults,purchaseonlythequantity
offuelthatyouexpecttousein30days.Otherwise,
youmayaddfuelstabilizertonewlypurchasedfuelto
keepitfreshforupto6months.
CheckingtheEngine-Oil
Level
ServiceInterval:Beforeeachuseordaily—Check
theengine-oillevelandaddoilif
necessary.
g217728
Figure9
6
DuringOperation
DuringOperationSafety
•Shutofftheenginebeforeuncloggingthe
machineandalwaysuseastickorthe
snow-cleanouttool(ifprovided).
•Arotatingaugercaninjurehandsorfeet.Stay
behindthehandlesandawayfromthedischarge
openingwhileoperatingthemachine.Keepyour
face,hands,feet,andanyotherpartofyour
bodyorclothingawayfrommovingorrotating
parts.
•Neverdirectthedischargetowardpeopleorareas
wherepropertydamagecanoccur.
•Exercisecautiontoavoidslippingorfalling.
Alwaysbesureofyourfooting,andkeeparm
holdonthehandles.Walk;neverrun.
•Exerciseextremecautionwhenoperatingon
slopes.
•Neveroperatethemachinewithoutgoodvisibility
orlight.
•Donotoperatethemachinewhileill,tired,or
undertheinuenceofalcoholordrugs.
•Lookbehindandusecarewhenbackingupwith
themachine.
•Whennotactivelyclearingsnow,disengagepower
totheauger.
•Exerciseextremecautionwhenoperatingonor
crossinggraveldrives,walks,orroads.Stayalert
forhiddenhazardsortrafc.
•Neverattempttomakeanyadjustmentswhilethe
engineisrunning.
•Afterstrikingaforeignobject,shutofftheengine,
removetheignitionkey(electric-startmodels
only),thoroughlyinspectthemachineforany
damage,andrepairthedamagebeforestarting
andoperatingthemachine.
•Ifthemachineshouldstarttovibrateabnormally,
shutofftheengineandcheckforthecause.
•Donotruntheengineindoorsunlessthereis
adequateventilation(e.g.,leavinganoutsidedoor
open);exhaustfumesaredangerous.
•Donotoverloadthemachinecapacityby
attemptingtoclearsnowattoofastarate.
•Nevertouchahotengineormufer.
StartingtheEngine
1.TurntheignitionkeyclockwisetotheONposition
(Figure10).
g011434
Figure10
2.Pulloutthechokelever(Figure11andFigure
12).
g217786
Figure11
1.Chokelever
g013819
Figure12
1.Symbolsonthechokeleverindicatingtopulloutthechoke
levertoactivatethechoke.
3.Firmlypushintheprimerwithyourthumbas
indicatedbythetablebelow,holdinginthe
primerinforasecondbeforereleasingiteach
time(Figure13).
Temperature
SuggestedNumberof
Primes
-23°C(-10°F)andabove
3
Below-23°C(-10°F)
6
7
g006453
Figure13
Note:Removeyourglovewhenyoupushin
theprimersothataircannotescapefromthe
primerhole.
Important:Donotusetheprimerorthe
chokeiftheenginehasbeenrunningandis
hot.Excessiveprimingmayoodtheengine
andpreventitfromstarting.
4.Pulltherecoil-starthandle(Figure14).
g006455
Figure14
Note:Ifyoupulltherecoilhandleandfeelno
resistance,thestartermaybefrozen.Thaw
outthestarterbeforeattemptingtostartthe
machine.
5.Whiletheengineisrunning,pushinthechoke
leverslowly.
EngagingtheRotorBlades
Toengagetherotorblades,holdthecontrolbar
againstthehandle(Figure15).
g216251
Figure15
DisengagingtheRotor
Blades
Todisengagetherotorblades,releasethecontrolbar
(Figure16).
g006457
Figure16
8
ShuttingOfftheEngine
Toshutofftheengine,turntheignitionkey
counterclockwisetotheOFFposition(Figure17).
g011433
Figure17
AdjustingtheDischarge
ChuteandChuteDeector
Toadjustthedischargechute,movethechutehandle
andthechute-deectorhandleasshown(Figure18).
g001128
Figure18
1.Chutehandle2.Chute-deectorhandle
ClearingaClogged
DischargeChute
Toclearthechute:
•Shuttheengineoff!
•Wait10secondstoensurethattherotorblades
havestoppedrotating.
•Alwaysuseaclean-outtool;neveruseyourhands.
OperatingTips
WARNING
Therotorbladescanthrowstones,toys,
andotherforeignobjectsandcauseserious
personalinjurytoyouorbystanders.
•Keeptheareatobeclearedfreeofall
objectsthattherotorbladescouldpickup
andthrow.
•Keepallchildrenandpetsawayfromthe
areaofoperation.
•Removethesnowassoonaspossibleafteritfalls.
•Overlapeachswathtoensurecompletesnow
removal.
•Dischargethesnowdownwindwheneverpossible.
•Ifthemachinedoesnotpropelitselfforwardon
slipperysurfacesorinheavysnow,pushforward
onthehandle,butallowthemachinetoworkat
itsownpace.
9
AfterOperation
AfterOperationSafety
•Neverstorethemachinewithfuelinthefuel
tankinsideabuildingwhereignitionsourcesare
present,suchashotwaterheaters,spaceheaters,
orclothesdryers.Allowtheenginetocoolbefore
storinginanyenclosure.
•Whenstoringthemachineformorethan30days,
refertoStorage(page17)forimportantdetails.
PreventingFreeze-upafter
Use
•Lettheenginerunforafewminutestoprevent
movingpartsfromfreezing.Shutofftheengine,
waitforallmovingpartstostop,andremoveice
andsnowfromthemachine.
•Cleanoffanysnowandicefromthebaseofthe
chute.
•Rotatethedischargechuteleftandrighttofree
itfromanyicebuildup.
•WiththeignitionkeyintheOFFposition,pullthe
recoil-starthandleseveraltimesorconnectthe
electricalcordtoapowersourceandthemachine
andpushtheelectric-startbuttononcetoprevent
therecoilstarterand/ortheelectricstarterfrom
freezingup(electric-startmodelsonly).
•Insnowyandcoldconditions,somecontrolsand
movingpartsmayfreeze.Donotuseexcessive
forcewhentryingtooperatefrozencontrols.Ifyou
havedifcultyoperatinganycontrolorpart,start
theengineandletitrunforafewminutes.
Maintenance
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Afterthersthour
•Checkthecontrolcableandadjustitifnecessary.
•Checkforloosefastenersandtightenthemifnecessary.
Aftertherst2hours
•Changetheengineoil.
Beforeeachuseordaily
•Checktheengine-oillevelandaddoilifnecessary.
Every25hours
•InspecttherotorbladesandhaveanAuthorizedServiceDealerreplacetherotor
bladesandscraperifnecessary.
Every50hours
•Changetheengineoil.
•Servicethesparkplugandreplaceitifnecessary.
•Replacethedrivebelt.
Yearly
•Checkthecontrolcableandadjustitifnecessary.
•InspecttherotorbladesandhaveanAuthorizedServiceDealerreplacetherotor
bladesandscraperifnecessary.
•Changetheengineoil.
•Servicethesparkplugandreplaceitifnecessary.
•Replacethedrivebelt.
•Checkforloosefastenersandtightenthemifnecessary.
•HaveanAuthorizedServiceDealerinspectthedrivebeltandreplaceitifnecessary.
Yearlyorbeforestorage
•Preparethemachineforstorage.
MaintenanceSafety
Readthefollowingsafetyprecautionsbefore
performinganymaintenanceonthemachine:
•Beforeperforminganymaintenance,service,or
adjustment,shutofftheengineandremovethe
key.Ifmajorrepairsareeverneeded,contactan
AuthorizedServiceDealer.
•Checkallfastenersatfrequentintervalsforproper
tightnesstoensurethatthemachineisinsafe
workingcondition.
•Donotchangethegovernorsettingsontheengine.
•PurchaseonlygenuineT ororeplacementparts
andaccessories.
10
AdjustingtheControlCable
CheckingtheControlCable
ServiceInterval:Afterthersthour—Checkthe
controlcableandadjustitif
necessary.
Yearly—Checkthecontrolcableandadjustit
ifnecessary.
Movethecontrolbarbacktowardthehandleto
removetheslackinthecontrolcable(Figure19).
g006401
Figure19
1.Controlbar2.2mmto3mm(1/16inch
to1/8inch)gap
Note:Ensurethata2to3mm(1/16to1/8inch)
gapexistsbetweenthecontrolbarandthehandle
(Figure19).
Important:Thecontrolcablemustcontainsome
slackwhenyoudisengagethecontrolbarforthe
rotorbladestostopproperly.
AdjustingtheControlCable
1.Slideupthespringcoverandunhookthespring
fromtheadjusterlink(Figure20).
g006402
Figure20
1.Adjusterlink
3.Springcover
2.Z-tting
4.Unhookthespringhere.
Note:Youcanpulluptheadjusterlinkand
cabletomakeunhookingthespringeasier.
2.MovetheZ-ttingtoahigherorlowerholeon
theadjusterlinkasneededtoobtainthe2to3
mm(1/16to1/8inch)gapbetweenthecontrol
barandthehandle(Figure19).
Note:MovingtheZ-ttinghigherdecreasesthe
gapbetweenthecontrolbarandthehandle;
movingitlowerincreasesthegap.
3.Hookthespringtotheadjusterlinkandslidethe
springcoverovertheadjusterlink.
4.Checktheadjustment;refertoCheckingthe
ControlCable(page11).
Note:Afterextendeduse,thedrivebeltmay
wearandloseitsproperbelttension.Ifthedrive
beltslips(continuouslysqueals)underaheavy
load,disconnectthespringfromtheadjustorlink
andmovetheupperendofthespringtothehole
thatisfurtherfromthepivotpointinthecontrol
bar(Figure21).Thenconnectthespringtothe
adjustorlinkandadjustthecontrolcable.
11
g006587
Figure21
1.Removetheupperendof
springfromthishole.
3.Pivotpoint
2.Inserttheupperendof
springintothishole.
4.Upperendofspring
Note:Thebeltmayslip(squeal)inwet
conditions;todryoutthedrivesystem,startthe
rotorandrunitwithoutaloadfor30seconds.
InspectingtheRotorBlades
ServiceInterval:Every25hours—Inspecttherotor
bladesandhaveanAuthorized
ServiceDealerreplacetherotor
bladesandscraperifnecessary.
Yearly—Inspecttherotorbladesandhavean
AuthorizedServiceDealerreplacetherotor
bladesandscraperifnecessary.
Beforeeachsession,inspecttherotorbladesfor
wear.Whenarotor-bladeedgehasworndownto
thewear-indicatorhole,haveanAuthorizedService
Dealerreplacetherotorbladesandthescraper
(Figure22).
g011544
Figure22
1.Thewear-indicatorholeis
intact;youdonotneedto
replacetherotorblades.
2.Thewear-indicatorholeis
exposed;replacetherotor
bladesandscraper.
ChangingtheEngineOil
ServiceInterval:Aftertherst2hours
Every50hours
Yearly
Ifpossible,runtheengineforafewminutesbefore
changingtheoiltowarmit.Warmoilowsbetterand
carriesmorecontaminants.
EngineOilSpecications
Engineoilcapacity
0.60L(20oz)
OilviscosityRefertoFigure25.
APIserviceclassicationSJorhigher
1.Siphonthefuelfromthefueltankintoan
approvedfuelcontainer,orruntheengineuntil
itshutsoff.
2.Movethemachinetoalevelsurface.
3.Placeanoil-drainpanundertheoil-drainplug,
removetheplug,andtipthemachinebackward
anddraintheusedoilinthepan(Figure23).
g006372
Figure23
4.Afterdrainingtheusedoil,returnthemachineto
theoperatingposition.
5.Installtheoil-drainplugandtightenitsecurely.
6.Cleanaroundtheoil-llcap(Figure24).
12
g006316
Figure24
1.Oil-llcap
7.Unscrewtheoil-llcapandremoveit(Figure
24).
8.Withthemachineintheoperatingposition,
carefullypouroilintotheoil-llholetothepoint
ofoverow(Figure26).
Note:Youmaytipthemachineforward(handle
up)tomakeaddingoileasier.Rememberto
returnthemachinetotheoperatingposition
beforecheckingtheoillevel.
Important:Donottipthemachineallthe
wayforwardontoitsnose,orfuelmayleak
outofthemachine.
UseFigure25belowtoselectthebestoil
viscosityfortheoutdoortemperaturerange
expected.
g011606
Figure25
g006374
Figure26
9.Wait3minutesfortheoiltosettleandadd
enoughoiltobringittothepointofoverow.
10.Screwtheoil-llcapintotheoil-llhole,and
tightenitsecurelybyhand.
11.Wipeupanyspilledoil.
12.Disposeoftheusedoilproperlyatalocal
recyclingcenter.
13
ServicingtheSparkPlug
ServiceInterval:Every50hours
Yearly—Servicethesparkplugandreplaceit
ifnecessary.
UseaNGKBPR6ESorChampionRN9YCspark
plugorequivalent.
1.Shutofftheengineandwaitforallmovingparts
tostop.
2.Rotatethedischargechutesothatitfaces
forward.
3.Removethedischargechutebyremovingthe3
screwsholdingthechuteandthescrewsholding
thechuteseal(Figure27).
g001118
Figure27
4.Removethe4screwsthatsecuretheshroud
(Figure28).
g011435
Figure28
1.Screw(4)3.Sparkplug
2.Shroud4.Spark-plugwire
5.Removethefuel-tankcap.
6.Removetheshroud(Figure28).
7.Installthefuel-tankcap.
8.Disconnectthewirefromthesparkplug.
9.Cleanaroundthesparkplug.
10.Removethesparkplugfromthecylinderhead.
Important:Replaceacracked,fouled,or
dirtysparkplug.Donotcleantheelectrodes
becausegritenteringthecylindercan
damagetheengine.
11.Setthegapontheplugto0.030inch(0.76mm)
asshowninFigure29.
g000533
Figure29
1.Center-electrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
14
12.Installthesparkplugandtorqueitto20to22
ft-lb(27to30N-m).
13.Connectthewiretothesparkplug.
Note:Ensurethatthebreathertubeisrouted
abovethespark-plugwireasshowninFigure
30.
g011440
Figure30
1.Breathertube
2.Carburetordrainbolt
14.Removethefuel-tankcap.
15.Installtheshroudwiththescrewsthatyou
removedinstep4.
Note:Ensurethattheupperandlowershrouds
ttogetherinthesidegrooves.
16.Installthefuel-tankcap.
17.Installthechuteseal,thedischargechute,and
thedischarge-chutehandleontothemachine
usingthehardwarethatyouremovedinstep3.
Note:Thesmallscrewgoesthroughthe
smallholeinthechutesealatthefrontofthe
discharge-chuteopening.
ReplacingtheDriveBelt
ServiceInterval:Every50hours
Yearly
Ifthedrivebeltbecomesworn,oil-soaked,excessively
cracked,frayed,orotherwisedamaged,replacethe
belt.
1.Removethedrive-beltcoverbyremovingthe3
boltsasshowninFigure31.
g008238
Figure31
1.Drive-beltcover6.Drivebelt
2.Bolt(3)7.Rotorshaft
3.Rotor-pulleybolt
8.Brakespring(unhookfrom
idlerarmhere)
4.Curvedwasher
9.Idlerpulley
5.Rotorpulley10.Enginepulley
2.Unhookthebrakespringfromtheidlerarmto
releasethebelttension(Figure31).
3.Removethescrewandcurvedwasherthat
holdstherotorpulley(Figure31).
4.Removetherotorpulleyandthedrivebelt
(Figure31).
5.Installthenewdrivebelt,routingitasshownin
Figure32.
15
g008317
Figure32
1.Brakespring(installon
idlerarmhere)
3.Enginepulley
2.Idlerpulley4.Rotorpulley
Note:Routethenewdrivebeltrstaroundthe
enginepulley,thentheidlerpulley,andnally
aroundthelooserotorpulleypositionedjust
abovetherotorshaft(Figure31).
6.Installtherotorpulleyontotherotorshaft(Figure
31).
7.Installthecurvedwasherandtherotor-pulley
boltandtightenthemsecurely(Figure31).
Note:Theconcavesideofthecurvedwasher
goesagainsttheoutsideofthepulley.
8.Installthebrakespringontotheidlerarm(Figure
32).
9.Installthedrive-beltcoverwiththeboltsthatyou
removedinstep1.
Note:Ensurethatthedrivebeltisproperly
adjustedandoperating;refertoCheckingthe
ControlCable(page11)andAdjustingthe
ControlCable(page11).
16
Storage
PreparingtheMachinefor
Storage
WARNING
Fuelfumesarehighlyammable,explosive,
anddangerousifinhaled.Ifyoustorethe
productinanareawithanopename,thefuel
fumesmayigniteandcauseanexplosion.
•Donotstorethemachineinahouse(living
area),basement,oranyotherareawhere
ignitionsourcesmaybepresent,such
ashotwaterandspaceheaters,clothes
dryers,furnaces,andotherappliances.
•Donottipthemachineeitherforward
orbackwardwithfuelinthefueltank;
otherwise,fuelmayleakoutofthe
machine.
•Donotstorethemachinewithitshandle
tippeddownontotheground;otherwise,
oilleaksintotheenginecylinderandonto
theground,andtheenginedoesnotstart
orrun.
1.Onthelastrefuelingoftheseason,addfuel
stabilizertofreshfuelasdirectedbythe
fuel-stabilizermanufacturer.
Important:Donotstorefuellonger
thanthatsuggestedbythefuel-stabilizer
manufacturer.
2.Runtheenginefor10minutestodistributethe
conditionedfuelthroughthefuelsystem.
3.Shutofftheengine,allowittocool,andsiphon
thefueltankorruntheengineuntilitshutsoff.
4.Starttheengineandrunituntilitshutsoff.
5.Chokeorprimetheengine,startitathirdtime,
andruntheengineuntilitdoesnotstart.
6.Drainthefuelinthecarburetorthroughthe
carburetor-drainboltintoanapprovedgasoline
container.
7.Disposeofunusedfuelproperly.Recycleit
accordingtolocalcodes,oruseitinyour
automobile.
8.Whiletheengineisstillwarm,changetheengine
oil.RefertoChangingtheEngineOil(page12).
9.Removethesparkplug.
10.Squirt10ml(2tsp)ofoilintothespark-plughole.
11.Installthesparkplugbyhandandthentorqueit
to27to30N∙m(20to22ft-lb).
12.WiththeignitionkeyintheOFFposition,pullthe
recoil-starthandleslowlytodistributetheoilon
theinsideofthecylinder.
13.Cleanthemachine.
14.Touchupchippedsurfaceswithpaintavailable
fromanAuthorizedServiceDealer.Sand
affectedareasbeforepainting,andusearust
preventativetopreventthemetalpartsfrom
rusting.
15.Tightenanyloosefasteners.Repairorreplace
anydamagedparts.
16.Coverthemachineandstoreitinaclean,dry
placeoutofthereachofchildren.Allowthe
enginetocoolbeforestoringthemachineinany
enclosure.
17
Notes:
Notes:
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Toro Power Clear 721 R-C Commercial Snowthrower User manual
- Category
- Snow throwers
- Type
- User manual
Toro Power Clear 721 R-C Commercial Snowthrower is designed for removing snow from paved surfaces, driveways and sidewalks. It can handle up to 5,000 ft above sea level with the High Altitude Kit installed, preventing spark plug fouling and hard starting. The safety features include a safety-alert symbol that warns of potential hazards. The snowthrower is powered by Toro's Premium 4-cycle OHV engine and delivers a clearing width of 21 inches and a clearing depth of 13 inches.
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