
FormNo.3359-597RevA
PT21CommercialLawnMower
ModelNo.22163—SerialNo.280000001andUp
ModelNo.22164—SerialNo.280000001andUp
Registeratwww.T oro.com.OriginalInstructions(EN)

Warning
CALIFORNIA
Proposition65Warning
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Important:Thisengineisnotequippedwitha
sparkarrestermufer.ItisaviolationofCalifornia
PublicResourceCodeSection4442touseoroperate
theengineonanyforest-covered,brush-covered,or
grass-coveredland.Otherstatesorfederalareas
mayhavesimilarlaws.
ThissparkignitionsystemcomplieswithCanadian
ICES-002.
Theenclosed
Engine Owner’ s Man ual
forinformationregardingtheUSEnvironmental
ProtectionAgency(EPA)andtheCalifornia
EmissionControlRegulationofemissionsystems,
maintenance,andwarranty.Replacementsmaybe
orderedthroughtheenginemanufacturer.
issupplied
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafetyalertsymbol
(Figure2),whichsignalsahazardthatmaycauseserious
injuryordeathifyoudonotfollowtherecommended
precautions.
Figure2
1.Safetyalertsymbol
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
Contents
Introduction
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoidinjury
andproductdamage.Youareresponsibleforoperating
theproductproperlyandsafely.
YoumaycontactTorodirectlyatwww .Toro.comfor
productandaccessoryinformation,helpndinga
dealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready .Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
Figure1
1.Modelandserialnumberplate
Introduction.................................................................2
Safety...........................................................................3
GeneralLawnMowerSafety.................................3
SafetyandInstructionalDecals.............................5
Setup............................................................................6
1InstallingtheHandle..........................................6
2InstallingtheStarterRope..................................7
3FillingtheCrankcasewithOil.............................7
4AdjustingtheHandleHeight..............................7
ProductOverview........................................................8
Operation.....................................................................9
CheckingtheEngineOilLevel..............................9
FillingtheFuelTankwithGasoline.....................10
StartingtheEngine.............................................11
StoppingtheEngine...........................................12
UsingtheSelf-propelDrive................................12
AdjustingtheCuttingHeight..............................12
RecyclingtheClippings.......................................13
Side-dischargingtheClippings............................13
OperatingTips...................................................14
Maintenance...............................................................16
RecommendedMaintenanceSchedule(s)................16
Lubrication.............................................................17
LubricatingtheWheelGears...............................17
EngineMaintenance...............................................17
ServicingtheAirFilter........................................17
ChangingtheEngineOil....................................18
ServicingtheSparkPlug.....................................18
©2008—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww.Toro.com.
2
PrintedintheUSA
AllRightsReserved

FuelSystemMaintenance.......................................19
EmptyingtheFuelTankandCleaningthe
FuelFilter.......................................................19
BladeMaintenance.................................................19
MaintainingtheCuttingBlade.............................19
Cleaning.................................................................21
CleaningundertheMowerHousing....................21
Storage.......................................................................22
PreparingtheFuelSystem...................................22
PreparingtheEngine..........................................22
GeneralInformation..........................................22
RemovingtheLawnMowerfromStorage............22
Troubleshooting.........................................................23
Safety
ThislawnmowermeetsorexceedstheCPSC
bladesafetyrequirementsforwalk-behindrotary
lawnmowersandtheB71.4specicationsofthe
AmericanNationalStandardsInstituteineffectat
thetimeofproduction.
Improperlyusingormaintainingthislawnmower
canresultininjury.T oreducethepotentialfor
injury,complywiththesesafetyinstructions.
Torodesignedandtestedthislawnmowerfortooffer
reasonablysafeservice;however,failuretocomply
withthefollowinginstructionsmayresultin
personalinjury.
Engineexhaustcontainscarbonmonoxide,an
odorless,deadlypoisonthatcankillyou.
Donotruntheengineindoorsorinanenclosed
area.
Toensuremaximumsafety,bestperformance,and
togainknowledgeoftheproduct,itisessentialthat
youandanyotheroperatorofthelawnmowerread
andunderstandthecontentsofthismanualbefore
theengineiseverstarted.Payparticularattention
tothesafetyalertsymbol(Figure2)whichmeans
Caution,Warning,orDanger—“personalsafety
instruction.”Readandunderstandtheinstruction
becauseithastodowithsafety.Failuretocomply
withtheinstructionmayresultinpersonalinjury.
GeneralLawnMowerSafety
Thislawnmoweriscapableofamputatinghandsand
feetandofthrowingobjects.Failuretoobservethe
followingsafetyinstructionscouldresultinserious
injuryordeath.
ThefollowinginstructionsarefromtheANSI/OPEI
B71.4-2004standard.
Training
•ReadtheOperator’sManualandothertraining
material.Iftheoperator(s)ormechanic(s)cannot
readEnglishitistheowner’ sresponsibilitytoexplain
thismaterialtothem.
•Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.The
ownerisresponsiblefortrainingtheusers.
3

•Neverletchildrenoruntrainedpeopleoperateor
servicetheequipment.Localregulationsmayrestrict
theageoftheoperator.
•Theowner/usercanpreventandisresponsiblefor
accidentsorinjuriesoccurringtothemselves,other
people,orproperty.
includingemptyingthecatcheroruncloggingthe
chute.
•Stopequipmentandinspectbladeafterstriking
objectsorifanabnormalvibrationoccurs.Make
necessaryrepairsbeforeresumingoperations.
•Keephandsandfeetawayfromthecuttingunits.
Preparation
•Onlyuseaccessoriesandattachmentsapprovedby
themanufacturer.
•Wearappropriateclothingincludinghardhat,safety
glasses,andearprotection.Longhair,looseclothing
orjewelrymaygettangledinmovingparts.
•Inspecttheareawheretheequipmentistobeused
andremoveallobjectssuchasrocks,toysandwire
whichcanbethrownbythemachine.
•Useextracarewhenhandlinggasolineandother
fuels.Theyareammableandvaporsareexplosive.
–Useonlyanapprovedcontainer.
–Neverremovegascaporaddfuelwithengine
running.Allowenginetocoolbeforerefueling.
Donotsmoke.
–Neverrefuelordrainthemachineindoors.
•Checkthatoperator’spresencecontrols,safety
switchesandshieldsareattachedandfunctioning
properly.Donotoperateunlesstheyarefunctioning
properly.
Operation
•Neverrunanengineinanenclosedarea.
•Onlyoperateingoodlight,keepingawayfromholes
andhiddenhazards.
•Onlystartenginefromtheoperator’sposition.
•Besureofyourfooting,especiallywhenbacking
up.Walk,don’trun.Neveroperateonwetgrass.
Reducedfootingcouldcauseslipping.
•Slowdownanduseextracareonhillsides.Besure
totravelsidetosideonhillsides.Turfconditions
canaffectthemachine’ sstability.Usecautionwhile
operatingneardrop-offs.
•Donotoperatethelawnmowerwithouteitherthe
grasscatcherortheguardinplace.
•Donotchangetheenginegovernorsettingor
overspeedtheengine.
•Lookbehindanddownbeforebackinguptobesure
ofaclearpath.
•Keeppetsandbystandersaway.
•Slowdownandusecautionwhencrossingroadsand
sidewalks.Stopbladeifyouarenotmowing.
•Beawareofthemowerdischargedirectionanddo
notpointitatanyone.
•Donotoperatethemowerundertheinuenceof
alcoholordrugs.
•Usecarewhenloadingorunloadingthemachine
intoatrailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayobscurevision.
MaintenanceandStorage
•Stopengineanddisconnectsparkplugwire.Wait
forallmovementtostopbeforeadjusting,cleaning
orrepairing.
•Cleangrassanddebrisfromcuttingunit,drive,
mufer,andenginetohelppreventres.Cleanup
oilorfuelspillage.
•Letenginecoolbeforestoringanddonotstorenear
ame.
•Shutofffuelwhilestoringortransporting.Donot
storefuelnearamesordrainindoors.
•Neverallowuntrainedpersonneltoservicemachine.
•Removesparkplugwirebeforemakinganyrepairs.
•Usecarewhencheckingblade.Wrapthebladeor
weargloves,andusecautionwhenservicingthem.
Onlyreplaceblade.Neverstraightenorweldit.
•Keephandsandfeetawayfrommovingparts.If
possible,donotmakeadjustmentswiththeengine
running.
•Keepallpartsingoodworkingconditionandall
hardwaretightened.Replaceallwornordamaged
decals.
•Stoponlevelgroundandshutoffenginebefore
leavingtheoperator’spositionforanyreason
4

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaof
potentialdanger.Replaceanydecalthatisdamagedorlost.
Manufacturer’sMark
1.Indicatesthebladeisidentiedasapartfromtheoriginal
machinemanufacturer.
98-4387
1.Warning—wearhearingprotection.
110-4989
112-8760
1.Thrownobjecthazard—keepbystandersasafedistance
fromthemachine.
2.Cutting/dismembermentofhandorfoot—stayawayfrom
movingparts.
5

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescription
Oval-headbolt
Locknut6
1
2
3
4
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
Upperhandle1
Cabletie
Nopartsrequired
Nopartsrequired
Nopartsrequired
1
InstallingtheHandle
Qty.
Use
6
Installthehandle.
1
–
–
–
Installthestarterrope.
Fillthecrankcasewithoil.
Adjustthehandleheight.
Partsneededforthisprocedure:
6
Oval-headbolt
6Locknut
1Upperhandle
1
Cabletie
Procedure
1.Attachtheupperhandletothelowerhandleusing4
oval-headboltsand4locknuts(model22164only).
Note:Ensurethattheboltheadsaretotheoutside
ofthehandle.
2.Movethehandletotheoperatingposition.
3.Attachthehandlebracestothelowerhandlesides
with2oval-headbolts,andsecurethemngertight
using2locknuts(Figure3).
Important:Ensurethattheboltheadsareto
the
inside
ofthehandle.
Figure3
1.Endcaponreardoorrod
2.Boltandwasher(2)
3.Locknut(2)
4.Aligntheovalboltheadswiththehandleasshown
inFigure3;then,holdingtheheadsinthatposition,
tighteneachnutwithawrenchtopullthesquare
shankintothehandleuntiltheboltheadsaretight
againstthehandle.
4.Handlebrace(2)
5.Boltheadalignedwiththe
handle
6

5.Tightentherestofthefastenersonthehandleand
handlebraces.
6.Usethecabletieprovidedtosecurethecontrol
cable(s)tothehandle.
Note:Attachthecabletieaslowaspossibleonthe
handletopreventthecable(s)fromhookingonto
theendcaponthereardoorrodandinterferingwith
theself-propelsystem(Figure3).
2
InstallingtheStarterRope
NoPartsRequired
Procedure
1.Pullthestarterropethroughtheropeguideonthe
handle(Figure4).
3
FillingtheCrankcasewithOil
NoPartsRequired
Procedure
Theenginecrankcaseisshippedwithoutoil.Youmust
llitwithapproximately22ounces(0.65liters)of
oilbeforestartingtheengine.RefertoCheckingthe
EngineOilLevelinOperationforoilspecicationsand
instructions.
4
AdjustingtheHandleHeight
NoPartsRequired
Procedure
Figure4
1.Starterrope
Note:Tomaketheropeeasiertoinstall,squeeze
thecontrolbaronthehandle.
2.Untietheslipknotinthestarterrope(Figure5).
2.Ropeguide
Youmayraiseorlowerthehandletoaposition
comfortableforyou.
1.Removethefastenerthatattachesthehandlebraces
tothelowerhandleends.
2.Inserttheboltthroughtheholeineachofthehandle
bracesthatsetsthehandletothedesiredposition
andtighten(Figure6).
1.Slipknot
Figure5
Figure6
1.Highestposition3.Lowestposition
2.Middleposition(either
hole)
7

ProductOverview
Figure9
1.Sidedischargechute
Figure7
Model22163
2.Reardischargeplug
(installed)
1.Recoilstarthandle
2.Bladecontrolbar
3.Fueltank
4.Oilll/dipstick
5.Sidedischarge
6.Airlter
7.Cuttingheightlever(4)
8.Sparkplug
9.Primer
Figure8
Model22164
1.Upperhandle
2.Recoilstarthandle7.Primer
3.Bladecontrolbar
4.Fueltank
5.Oilll/dipstick10.Sidedischarge
6.Airlter
8.Cuttingheightlever(4)
9.Sparkplug
8

Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Eachtimebeforeyoumow ,makesurethatthe
self-propeldriveandthebladecontrolbaroperate
properly.Whenyoureleasethebladecontrolbar,the
bladeandself-propeldriveshouldstop.Iftheydonot,
contactanAuthorizedServiceDealer.
Thismachineproducessoundlevelsinexcess
of85dBAattheoperator’searandcancause
hearinglossthroughextendedperiodsof
exposure.
Wearhearingprotectionwhenoperatingthis
machine.
Figure11
1.Dipstick3.Add
2.Full
Note:Whenthecrankcaseisempty,pourabout3/4
ofthecrankcasecapacityofoilinthecrankcase,then
followtheprocedureinthissection.
Figure10
1.Warning—wearhearingprotection.
CheckingtheEngineOilLevel
ServiceInterval:Beforeeachuseordaily
Initially,llthecrankcasewith22ounces(0.65liters)
ofoil.Useonlyhigh-qualitySAE30orSAE10W30
weightdetergentoilthathastheAmericanPetroleum
Institute(API)serviceclassicationSF ,SG,SH,orSJ.
Beforeeachuse,ensurethattheoillevelisbetweenthe
AddandFullmarksonthedipstick(Figure11).
1.Movethelawnmowertoalevelsurface.
2.Cleanaroundthedipstick(Figure11).
3.Removethedipstickbyrotatingthecap
counterclockwiseandpullingitout.
4.Wipethedipstickcleanwithacleancloth.
5.Insertthedipstickintothellerneck,butdonot
screwitin.
6.Removethedipstickandreadtheoillevelonthe
dipstick(Figure11).
7.IftheoillevelreadingisbelowtheAddmarkon
thedipstick,slowlypouronlyenoughoilintothe
llerholetoraisetheoilleveltotheFullmarkon
thedipstick.
Important:Donotoverllthecrankcasewith
oilandruntheengine;enginedamagewill
result.Draintheexcessoiluntiltheoillevelon
thedipstickreadsFull.
8.Insertthedipstickintothellerneckandrotatethe
capclockwiseuntilitistight.
9

FillingtheFuelTankwith
Gasoline
Forbestresults,useclean,fresh,lead-freegasolinewith
anoctaneratingof87orhigher.T oensurefreshness,
purchaseonlythequantityofgasolinethatyouexpectto
usein30days.Usingunleadedgasolineresultsinfewer
combustiondepositsandlongerenginelife.Youmay
useleadedgasolineifunleadedgasolineisnotavailable.
Important:Donotaddoiltothegasoline.
Important:Donotusemethanol,gasoline
containingmethanol,gasoholcontainingmore
than10%ethanol,premiumgasoline,orwhitegas.
Usingthesefuelscandamagetheengine’sfuel
system.
Important:Donotusegasolinethathasbeen
storedsincethelastmowingseasonorlonger.
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areor
explosionfromgasolinecanburnyouand
othersandcandamageproperty.
•Fillthefueltankoutdoors,inanopenarea,
andwhentheengineiscold.Wipeupany
gasolinethatspills.
•Donotllthefueltankcompletelyfull.Add
gasolinetothefueltankuntilthelevelis1/4
to1/2in.(6to13mm)belowthebottomof
thellerneck.Thisemptyspaceinthetank
allowsthegasolinetoexpand.
Whenfueling,undercertaincircumstances,a
staticchargecandevelop,ignitingthegasoline.
Areorexplosionfromgasolinecanburnyou
andothersanddamageproperty.
•Alwaysplacegasolinecontainersonthe
groundandawayfromyourvehiclebefore
lling.
•Donotllgasolinecontainersinsidea
vehicleoronatruckortrailerbedbecause
interiorcarpetsorplastictruckbedliners
mayinsulatethecontainerandslowtheloss
ofanystaticcharge.
•Whenpractical,removegasoline-powered
equipmentfromthetruckortrailerand
refueltheequipmentwithitswheelsonthe
round.
•Ifthisisnotpossible,thenrefuelsuch
equipmentonatruckortrailerfroma
portablecontainer,notfromagasoline
dispensernozzle.
•Ifyoumustuseagasolinedispensernozzle,
keepthenozzleincontactwiththerimof
thefueltankorcontaineropeningatall
timesuntilfuelingiscomplete.
Useafuelstabilizer/conditionerregularlyduring
operationandstorage.Astabilizer/conditionercleans
theengineduringoperationandpreventsgum-like
varnishdepositsfromformingintheengineduring
periodsofstorage.
•Neversmokewhenhandlinggasoline,and
stayawayfromanopenameorwherea
sparkmayignitethegasolinefumes.
•Storegasolineinanapprovedfuelcontainer
andkeepitoutofthereachofchildren.
•Neverbuymorethana30-daysupplyof
gasoline.
Important:Donotusefueladditivesotherthan
afuelstabilizer/conditioner.Donotusefuel
stabilizerswithanalcoholbasesuchasethanol,
methanol,orisopropanol.
1.Cleanaroundthefueltankcap(Figure12).
10

Figure12
1.Oilll/dipstick
2.Fueltankcap
3.Aircleaner
2.Removethecapfromthetank.
3.Fillthefueltankwithunleadedgasolinetowithin
1/4to1/2inch(6to13mm)fromthetopofthe
tank.Donotllintothellerneck.
Important:Donotllthetankmorethan1/4
inch(6mm)fromthetopofthetankbecause
thegasolinemusthaveroomtoexpand.
4.Installthefueltankcapandwipeupanyspilled
gasoline.
StartingtheEngine
1.Connectthewiretothesparkplug(Figure13).
Figure14
3.Holdthebladecontrolbaragainstthehandle
(Figure15)or(Figure16).
Figure15
Model22163
Figure13
1.Spark-plugwire
2.Firmlypushintheprimeroncewithyourthumb
(Figure14).
Note:Donotpushintheprimerexcessivelyto
preventoodingtheenginewithfuel.
Figure16
Model22164
11

4.Pulltherecoilstarter(Figure17)or(Figure18).
Figure17
Model22163
Important:Whenyoureleasethebladecontrol
bar,boththeengineandbladeshouldstop
within3seconds.Iftheydonotstopproperly,
stopusingyourmowerimmediatelyandcontact
anAuthorizedServiceDealer.
UsingtheSelf-propelDrive
Model22164only
Tooperatetheself-propeldrive,simplywalkwithyour
handsontheupperhandleandyourelbowsatyour
sides,andthemowerwillautomaticallykeeppacewith
you(Figure20).
Figure18
Model22164
5.Ifthemowerdoesnotstartin1or2pulls,pressthe
primerbutton1or2timesandtrystartingitagain.
Note:Ifthemowerstilldoesnotstart,contactan
AuthorizedServiceDealer.
StoppingtheEngine
1.Releasethebladecontrolbar(Figure19).
Figure20
AdjustingtheCuttingHeight
Adjustingthecuttingheightmaybringyouinto
contactwiththemovingblade,causingserious
injury.
•Stoptheengineandwaitforallmovingparts
tostop.
•Donotputyourngersunderthehousing
whenadjustingthecuttingheight.
Iftheenginehasbeenrunning,themuferwill
behotandcanseverelyburnyou.Keepaway
fromthehotmufer.
Figure19
2.Whentheenginestops,removetheignitionkey
whenyouleavethemower.
Adjustthecuttingheightasdesired.Setallfourwheels
tothesameheight.
Note:Toraisethemower,moveall4cuttingheight
leversforward;tolowerthemower,movethemall
rearward(Figure21).
12

Figure22
Side-dischargingthe
Clippings
Usethesidedischargeforcuttingverytallgrass.
Ifthebagisonthemower,removeitandinsertthe
reardischargeplug(refertoRemovingtheGrassBag)
beforeside-dischargingtheclippings.
Important:Ensurethatthereardischarge
plugisinplacebeforeyourecycletheclippings
(Figure23).
Figure21
RecyclingtheClippings
Yourmowercomesfromthefactoryreadytorecycle
thegrassandleafclippingsbackintothelawn.
Ifthegrassbagisonthemower,removeit(referto
RemovingtheGrassBag)beforerecyclingtheclippings.
Ifthesidedischargechuteisonthemower,removeit
andlockthesidedischargedoor(refertoRemovingthe
SideDischargeChute)beforerecyclingtheclippings.
Important:Ensurethatthereardischarge
plugisinplacebeforeyourecycletheclippings
(Figure22).
Figure23
Thebladeissharp;contactingthebladecan
resultinseriouspersonalinjury.
Stoptheengineandwaitforallmovingpartsto
stopbeforeleavingtheoperatingposition.
13

InstallingtheSideDischargeChute
1.Unlockthesidedischargedoor(Figure24).
OperatingTips
GeneralTips
•Maintainasharpbladethroughoutthecutting
season.Periodicallyledownnicksontheblade.
•Replacethebladewhennecessarywithanoriginal
Tororeplacementblade.
Figure24
2.Liftopenthesidedischargedoor(Figure25).
Figure25
3.Installthesidedischargechuteandclosethedoor
ontothechute(Figure26).
Figure26
•Mowonlydrygrassorleaves.Wetgrassandleaves
tendtoclumpontheyardandcancausethemower
toplugortheenginetostall.
Wetgrassorleavescancauseseriousinjuryif
youslipandcontacttheblade.
Mowonlyindryconditions.
•Cleanunderthemowerhousingaftereachmowing.
SeeCleaningundertheMowerHousing.
•Keeptheengineingoodrunningcondition.
•Settheenginespeedtothefastestpositionforthe
bestcuttingresults.
Operatingamowerwithitsenginerunningat
aspeedgreaterthanthefactorysettingcan
causethemowertothrowapartofthebladeor
engineintotheoperator’sorbystander’sarea
andresultinseriouspersonalinjuryordeath.
–Donotchangetheenginespeedsetting.
RemovingtheSideDischargeChute
Toremovethesidedischargechute,reversethesteps
above.
Important:Lockthesidedischargedoorafteryou
closeit(Figure27).
Figure27
–Ifyoususpecttheenginespeedisfaster
thannormal,contactanAuthorizedService
Dealer.
•Cleantheairlterfrequently.Mulchingstirsup
moreclippingsanddustwhichclogstheairlter
andreducesengineperformance.
CuttingGrass
•Grassgrowsatdifferentratesatdifferenttimesof
theyear.Inthesummerheat,itisbesttocutgrass
atthe2-1/4inch(57mm),2-3/4inch(70mm),or
3-1/4inch(83mm)cuttingheightsettings.Cut
onlyaboutathirdofthegrassbladeatatime.Do
notcutbelowthe2-1/4inch(57mm)settingunless
thegrassissparseoritislatefallwhengrassgrowth
beginstoslowdown.
14

•Whencuttinggrassover6inches(15cm)tall,rst
mowatthehighestcuttingheightsettingandwalk
slower;thenmowagainatalowersettingforthe
bestlawnappearance.Ifthegrassistoolongand
theleavesclumpontopofthelawn,themowermay
plugandcausetheenginetostall.
•Alternatethemowingdirection.Thishelpsdisperse
theclippingsoverthelawnforevenfertilization.
Ifthenishedlawnappearanceisunsatisfactory,try
oneormoreofthefollowing:
•Sharpentheblade.
•Walkataslowerpacewhilemowing.
•Raisethecuttingheightonyourmower.
•Cutthegrassmorefrequently .
•Overlapcuttingswathsinsteadofcuttingafull
swathwitheachpass.
•Setthecuttingheightonthefrontwheelsonenotch
lowerthantherearwheels.Forexample,setthe
frontwheelsat2-1/4inches(57mm)andtherear
wheelsat2-3/4inches(70mm).
CuttingLeaves
•Aftercuttingthelawn,ensurethathalfofthelawn
showsthroughthecutleafcover.Youmayneedto
makemorethanonepassovertheleaves.
•Forlightleafcoverage,setallthewheelsatthesame
cuttingheightsetting.
•Iftherearemorethan5inches(12.7cm)ofleaves
onthelawn,setthefrontcuttingheight1or2
notcheshigherthantherearcuttingheight.This
makesiteasiertofeedtheleavesunderthemower
housing.
•Slowdownyourmowingspeedifthemowerdoes
notcuttheleavesnelyenough.
•Ifyoumowoveroakleaves,youcanaddlimeto
thegrassinthespringtoreducetheacidityofthe
oakleaves.
15

Maintenance
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
Aftertherst8hours
Beforeeachuseordaily
Every25hours
Every50hours
Every100hours
Every300hours
Yearly
Important:Refertoyour
MaintenanceProcedure
•Changetheengineoil.
•Checktheengineoillevel.
•Inspectthemowerbladesforwearordamage.
•Cleanunderthemowerhousing.
•Cleanthefoampre-cleaner(morefrequentlyindustyconditions).
•Changetheengineoil(moreoftenindustyconditions).
•Checkthesparkplug.
•Replacethepaperairlter(morefrequentlyindustyconditions).
•Lubricatetherearwheelgears.
•Emptythefueltankandcleanthefuellter.
Engine Operator’ s Man ual
foradditionalmaintenanceprocedures.
Ifyouleavethewireonthesparkplug,someonecouldaccidentlystarttheengineandseriouslyinjure
youorotherbystanders.
Disconnectthewirefromthesparkplugbeforeyoudoanymaintenance.Setthewireasidesothatit
doesnotaccidentlycontactthesparkplug.
16

Lubrication
EngineMaintenance
LubricatingtheWheelGears
ServiceInterval:Yearly
1.Wipethegreasettingsjustinsidetherearwheels
withacleanrag(Figure28).
Figure28
1.Greasetting
ServicingtheAirFilter
ServiceInterval:Every25hours—Cleanthefoam
pre-cleaner(morefrequentlyindusty
conditions).
Every300hours—Replacethepaper
airlter(morefrequentlyindusty
conditions).
Important:Donotoperatetheenginewithoutthe
airlterassembly;extremeenginedamagewill
occur.
1.Stoptheengineandwaitforallmovingpartstostop.
2.Removethescrewthatsecurestheairlter
coverFigure29).
2.Installagreasegunontoeachttingandgentlyapply
2or3pumpsof#2multi-purposelithium-base
grease.
Figure29
1.AirFilterhousing
2.Foampre-cleaner
3.Paperairlter
3.Removethecoverandcleanitthoroughly(Figure29).
4.Removeandinspectthepaperairlter(Figure29),
anddiscarditifitisexcessivelydirty.
Important:Donottrytocleanapaperlter.
5.Removethefoampre-cleanerandwashitwitha
milddetergentandwater,thenblotitdry.
6.Saturatethepre-cleanerwithoil,thensqueezeit(do
nottwist)toremovetheexcessoil.
7.Installthefoampre-cleaner.
8.Installthepaperairlter.
4.Cover
5.Screw
Note:Installanewpaperairlterifyoudiscarded
theoldone.
9.Installthecoverandsecureitwiththescrew .
17

ChangingtheEngineOil
ServiceInterval:Aftertherst8hours
Every50hours
1.Runtheenginetowarmtheengineoil.
Note:Warmoilowsbetterandcarriesmore
contaminants.
Oilmaybehotafterenginehasbeenrun,and
contactwithhotoilcancauseseverepersonal
injury.
Avoidcontactingthehotengineoilwhenyou
drainit.
2.Stoptheengineandwaitforallmovingpartstostop.
becausegritenteringthecylindercandamage
theengine.
5.Setthegapontheplugto0.030in.(0.76mm)
(Figure30).
Figure30
1.Centerelectrodeinsulator
2.Sideelectrode
3.Airgap(nottoscale)
3.Disconnectthewirefromthesparkplug(Figure13).
4.Placeasuitabledrainpanundertherightsideof
themower.
5.Removethedipstickbyrotatingthecap
counterclockwiseandpullingitout.
6.Tipthemowerontoitsrightsidetodraintheoil
intothedrainpan.
Note:Youcanalsoremovetheoilfromthe
crankcaseusinganoilextractor.
7.Returnthemowertoitsoperatingposition.
8.Insertthedipstickintothellerneckandrotatethe
capclockwiseuntilitistight.
9.Recycletheusedoilaccordingtolocalcodes.
10.FillthecrankcasetotheFulllineonthedipstickwith
freshoil.RefertotheFillingtheCrankcasewithOil.
11.Wipeupanyspilledoil.
ServicingtheSparkPlug
6.Installthesparkplugandthegasketseal.
7.Torquetheplugto17ft-lb(23N⋅m).
8.Connectthewiretothesparkplug.
ServiceInterval:Every100hours
UseanNGKBPR5ESsparkplugorequivalent.
1.Stoptheengineandwaitforallmovingpartstostop.
2.Disconnectthewirefromthesparkplug(Figure13).
3.Cleanaroundthesparkplug.
4.Removethesparkplugfromthecylinderhead.
Important:Replaceacracked,fouled,or
dirtysparkplug.Donotcleantheelectrodes
18

FuelSystem
BladeMaintenance
Maintenance
MaintainingtheCuttingBlade
EmptyingtheFuelTankand
CleaningtheFuelFilter
ServiceInterval:Yearly
Thefuellter(screen)elementislocatedinsidethefuel
tank.
1.Stoptheengineandwaitforittocooldown.
Note:Draingasolinefromacoldengineonly .
2.Disconnectthewirefromthesparkplug(Figure13).
3.Disconnectthefuellinebylooseningthetubeclamp
atthecarburetor.
4.Openthefuelvalve.
5.Drainthegasolinecompletelyfromthetankandfuel
lineintoanapprovedfuelcontainer.
6.Removethefueltankfromthemower.
7.Pourasmallamountoffuelinthefueltank,move
thefuelaroundinthetank,andpouritoutintoan
approvedfuelcontainer.
Alwaysmowwithasharpblade.Asharpbladecuts
cleanlyandwithouttearingorshreddingthegrassblades.
1.Stoptheengineandwaitforallmovingpartstostop.
2.Disconnectthewirefromthesparkplug(Figure13).
3.Drainthegasolinefromthefueltank;referto
EmptyingtheFuelTankandCleaningtheFuelFilter.
4.Tipthemowerontoitssidewiththeairlterup
(Figure31).
8.Installthefueltankandfuelline;refertoInstalling
theFuelTankandtheFuelLine.
Figure31
InspectingtheBlade
ServiceInterval:Beforeeachuseordaily
Carefullyexaminethebladeforsharpnessandwear,
especiallywheretheatandthecurvedpartsmeet
(Figure32A).Becausesandandabrasivematerialcan
wearawaythemetalthatconnectstheatandcurved
partsoftheblade,checkthebladebeforeusingthe
mower.Ifyounoticeaslotorwear(Figure32Band
Figure32C),replacetheblade;refertoRemovingthe
Blade.
19

Figure32
1.Sail
2.Flatpartoftheblade4.Slotformed
3.Wear
BalancingtheBlade
1.Checkthebalanceofthebladebyplacingthecenter
holeofthebladeoveranailorscrewdrivershank
clampedhorizontallyinavise(Figure34).
Figure34
Note:Forthebestperformance,installanewblade
beforethecuttingseasonbegins.Duringtheyear,le
downanysmallnickstomaintainthecuttingedge.
Awornordamagedbladecanbreak,anda
pieceofthebladecouldbethrownintothe
operator’sorbystander’sarea,resultingin
seriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
RemovingtheBlade
Grasptheendofthebladeusingaragorathickly
paddedglove.Removethebladebolt,accelerator,and
theblade(Figure31).
Note:Youcanalsocheckthebalanceusinga
commerciallymanufacturedbladebalancer.
2.Ifeitherendofthebladerotatesdownward,lethat
end(notthecuttingedgeortheendnearthecutting
edge).Thebladeisproperlybalancedwhenneither
enddrops.
InstallingtheBlade
1.Installasharp,balancedToroblade,theaccelerator,
andthebladebolt.Torquethebladeboltto60
ft-lb(82N-m).
2.Returnthemowertoitsoperatingposition.
3.Connectthewiretothesparkplug.
SharpeningtheBlade
Filethetopsideofthebladetomaintainitsoriginal
cuttingangle(Figure33A)andinnercuttingedgeradius
(Figure33B).Thebladewillremainbalancedifyou
removethesameamountofmaterialfrombothcutting
edges.
Figure33
1.Sharpenatthisangleonly .
2.Maintaintheoriginalradius
here.
20

Cleaning
CleaningundertheMower
Housing
Toensurethebestperformance,keeptheundersideof
themowerhousingclean.
WashingMethod
ServiceInterval:Beforeeachuseordaily
1.Positionthemoweronaatconcreteorasphalt
surfacenearagardenhose.
2.Starttheengine.
3.Holdtherunninggardenhoseathandleleveland
directthewatertoowonthegroundjustinfront
oftherightrearwheel(Figure35).
Tippingthemowermaycausethefueltoleak
fromthecarburetororthefueltank.Gasoline
isextremelyammable,highlyexplosive,and,
undercertainconditions,cancausepersonal
injuryorpropertydamage.
Avoidfuelspillsbyrunningtheenginedryor
byremovingthegasolinewithahandpump;
neversiphon.
3.Tipthemowerontoitsrightside.
4.Removethedirtandgrassclippingswithahardwood
scraper.Avoidburrsandsharpedges.
5.Returnthemowertoitsoperatingposition.
6.Fillthefueltank.
7.Connectthewiretothesparkplug.
Figure35
1.Rightrearwheel
Note:Thebladewillsplashintothepathofthe
blade,cleaningouttheclippings.
4.Stoptheengineandwaitforallmovingpartstostop.
5.Turnoffthewater.
6.Startthemowerandletitrunforafewminutes
todryoutthemoistureonthemowerandits
components.
ScrapingMethod
Ifwashingdoesnotremovealldebrisfromunderthe
mower,scrapeitclean.
1.Disconnectthewirefromthesparkplug(Figure13).
2.Drainthefuelfromthefueltank.RefertoEmptying
theFuelTankandCleaningtheFuelFilter.
21

Storage
2.Cleananydirtandchafffromthecylinder,cylinder
headns,andblowerhousing.
Topreparethemowerforoff-seasonstorage,perform
therecommendedmaintenanceprocedures.Referto
Maintenance.
Storethemowerinacool,clean,dryplace.Coverthe
mowertokeepitcleanandprotected.
PreparingtheFuelSystem
Gasolinecanvaporizeifyoustoreitoverlong
periodsoftimeandexplodeifitcomesinto
contactwithanopename.
•Donotstoregasolineoverlongperiodsof
time.
•Donotstorethemowerwithgasolineinthe
fueltankorthecarburetorinanenclosure
withanopename.(Forexample,afurnace
orawaterheaterpilotlight.)
•Allowtheenginetocoolbeforestoringitin
anyenclosure.
3.Removegrassclippings,dirt,andgrimefromthe
externalpartsoftheengine,theshrouding,andthe
topofthemowerhousing.
4.Checktheconditionoftheblade.Referto
MaintainingtheCuttingBlade.
5.Servicetheairlter;refertoServicingtheAirFilter.
6.Lubricatethepivotarms;refertoLubricatingthe
PivotArms.
7.Tightenallnuts,bolts,andscrews.
8.Touchupallrustedorchippedpaintsurfaceswith
paintavailablefromanAuthorizedServiceDealer.
RemovingtheLawnMower
fromStorage
1.Checkandtightenallfasteners.
2.Removethesparkplugandspintheenginerapidly
usingthestartertoblowexcessoilfromthecylinder.
3.Cleanthesparkplugorreplaceitifitiscracked,
broken,oriftheelectrodesareworn.
Emptythefueltankwhenmowingthelasttimebefore
storingthemower.
1.Runthemoweruntiltheenginestopsfromrunning
outoffuel.
2.Primetheengineandstartitagain.
3.Allowtheenginetorununtilitstops.Whenyoucan
nolongerstarttheengine,itissufcientlydry.
PreparingtheEngine
1.Whiletheengineisstillwarm,changetheoilfrom
thecrankcase.RefertoChangingtheEngineOil.
2.Removethesparkplug.
3.Usinganoilcan,addaboutonetablespoonofoilto
thecrankcasethroughthesparkplughole.
4.Slowlyrotatetheengineseveraltimes,usingthe
starterrope,todistributetheoil.
5.Installthesparkplugbutdonotconnectthewireto
thesparkplug.
4.Installthesparkplugandtorqueitto17ft-lb(23
N-m).
5.Performanyneededmaintenanceprocedures;refer
toMaintenance.
6.Fillthefuelinthefueltankwithfreshgasoline.
7.Checktheengineoillevel.
8.Connectthewiretothesparkplug.
GeneralInformation
1.Cleanthemowerhousing.RefertoCleaningunder
theMowerHousing.
22

Troubleshooting
Problem
Enginedoesnotstart
Enginestartshardorlosespower
Enginerunsrough
PossibleCauseCorrectiveAction
1.Thefueltankisemptyorthefuel
systemcontainsstalefuel.
2.Thewireisnotconnectedtothespark
plug.
3.Thesparkplugispitted,fouled,orthe
gapisincorrect.
1.Thefueltankcontainsstalefuel.1.Drainandllthefueltankwithfresh
2.Thefuelcapventholeisplugged.2.Cleanthefuelcapventholeorreplace
3.Theairlterelementisdirtyandis
restrictingtheairow.
4.Theundersideofthemowerhousing
containsclippingsanddebris.
5.Thesparkplugispitted,fouled,orthe
gapisincorrect.
6.Theengineoillevelislowortheoilis
dirty.
1.Thewireisnotconnectedtothespark
plug.
2.Thesparkplugispitted,fouled,orthe
gapisincorrect.
3.ThethrottleleverisnotintheFast
position.
4.Theairlterelementisdirtyandis
restrictingtheairow.
1.Drainand/orllthefueltankwith
freshgasoline.Iftheproblempersists,
contactanAuthorizedServiceDealer.
2.Connectthewiretothesparkplug.
3.Checkthesparkplugandadjustthe
gapifnecessary.Replacethespark
plugifitispitted,fouled,orcracked.
gasoline.
thefuelcap.
3.Cleantheairlterpre-cleanerand/or
replacethepaperairlter.
4.Cleanunderthemowerhousing.
5.Checkthesparkplugandadjustthe
gapifnecessary.Replacethespark
plugifitispitted,fouled,orcracked.
6.Checktheengineoil.Changetheoilif
itisdirtyoraddoilifitislow .
1.Connectthewiretothesparkplug.
2.Checkthesparkplugandadjustthe
gapifnecessary.Replacethespark
plugifitispitted,fouled,orcracked.
3.MovethethrottlelevertotheFast
position.
4.Cleantheairlterpre-cleanerand/or
replacethepaperairlter.
Lawnmowerorenginevibrates
excessively
Unevencuttingpattern
Mowerdoesnotself-propel
1.Thebladeisbentorisoutofbalance.1.Balancetheblade.Ifthebladeisbent,
2.Theblademountingnutsareloose.2.Tightentheblademountingnuts.
3.Theundersideofthemowerhousing
containsclippingsanddebris.
4.Theenginemountingboltsareloose.4.Tightentheenginemountingbolts.
1.All4wheelsarenotatthesameheight.1.Placeall4wheelsatthesameheight.
2.Thebladeisdull.
3.Youaremowinginthesamepattern
repeatedly.
4.Theundersideofthemowerhousing
containsclippingsanddebris.
1.Theself-propeldrivecableisoutof
adjustmentorisdamaged.
2.Thereisdebrisunderthebeltcover.
replaceit.
3.Cleanunderthemowerhousing.
2.Sharpenandbalancetheblade.
3.Changethemowingpattern.
4.Cleanunderthemowerhousing.
1.Adjusttheself-propeldrivecable.
Replacethecableifnecessary .
2.Cleanthedebrisfromunderthebelt
cover.
23

LCE PT21
Professional
Trim Mowers
A One-Year Full Warranty (Limited Warranty for Commercial Use)
The Toro Total Coverage Guarantee
Conditions and Products Covered
The Toro® Company and its afliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair any Toro product when used
for residential purposes* if defective in materials or workmanship or if it stops functioning due to the failure of a component. The following time periods
apply from the date of purchase:
Products
Mowers and attachments 1-year full warranty
This warranty covers the cost of parts and labor, but you must pay transportation costs. This warranty applies to all PT21 Professional Trim mowers and
their attachments.
Warranty Period
Limited Warranty for Commercial Use
Toro products used for commercial, institutional, or rental use are warranted against defects in materials or workmanship for the following time periods
from the original date of purchase:
Products
Engines
Mowers and attachments 6 months limited warranty
Components failing due to normal wear are not covered by this warranty.
Warranty Period
1 year limited warranty
Items and Conditions Not Covered
There is no other express warranty except for the special emission system coverage on some products. This express warranty does not cover the following:
• Cost of regular maintenance service or parts, such as lters, fuel, lubricants, oil changes, air lter, blade sharpening/worn blade on mowers, cable/linkage
adjustments, or brake and clutch adjustments
• Any product or part which has been altered, misused, or requires replacement or repair due to accidents or lack of proper maintenance
• Repairs necessary due to improper battery care, failure to use fresh fuel (less than one month old), or failure to properly prepare the unit prior to any
period of non-use over one month
• Operational misuse, neglect, or accidents
• Repairs or attempted repairs by anyone other than an Authorized Toro Service Dealer.
• Pickup and delivery charges
Owner Responsibilities
You must maintain your Toro product by following the maintenance procedures described in the Operator’s Manual . Such routine maintenance, whether
performed by a dealer or by you, is at your expense.
Instructions for Obtaining Warranty Service
If you think that your Toro product contains a defect in materials or workmanship follow this procedure:
1. Contact any Authorized Toro Service Dealer to arrange service at their dealership. To locate a dealer convenient to you, refer to the Yellow Pages of your
telephone directory (look under “Lawn Mowers”) or access our website at www.Toro.com . U.S. Customers may also call the number listed in item # 3 to use
our 24–hour Toro dealer locator system.
2. Bring the product and your proof of purchase (sales receipt) to the Service Dealer. The dealer will diagnose the problem and determine if it is to be
covered under warranty.
3. If for any reason you are dissatised with the Service Dealer’s analysis or with the assistance provided, contact us at: LCB Customer Care Department, Toro
Warranty Company, 8111 Lyndale Avenue South, Bloomington, MN 55420-1196; or call us toll free at 1-888-865–5676 (U.S. customers) or 1-888–865–5691
(Canada customers).
General Conditions
All repairs covered by these warranties must be performed by an Authorized Toro Service Dealer using Toro approved replacement parts.
Neither The Toro® Company nor Toro Warranty Company is liable for indirect, incidental, or consequential damages in connection with the
use of the Toro products covered by these warranties, including any cost or expense of providing substitute equipment or service during
reasonable periods of malfunction or non-use pending completion of repairs under these warranties. Some states do not allow exclusions of
incidental or consequential damages, so the above exclusions and limitations may not apply to you. This warranty gives you specic legal
rights, and you may also have other rights which vary from state to state.
Countries Other than the United States or Canada
Customers who have purchased Toro products exported from the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee
policies for your country, province, or state. If for any reason you are dissatised with your Distributor’s service or have difculty obtaining guarantee information,
contact the Toro importer. If all other remedies fail, you may contact us at Toro Warranty Company.
* Residential purposes means use of the product on the same lot as your home. Use at more than one location is considered commercial use, and the commercial
use warranty would apply.
374-0161 Rev A