Exmark COMMERCIAL 21 User manual

Brand: Exmark

Model: COMMERCIAL 21

Category: Lawnmowers

Type: User manual

COMMERCIAL21

ForSerialNos.

316,000,000&Higher

PartNo.4502-544Rev.A

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemical

orchemicalsknowntotheStateof

Californiatocausecancer,birthdefects,

orreproductiveharm.

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,

orotherreproductiveharm.

Important:Theengineinthisproductisnot

equippedwithasparkarrestermufer.Itisa

violationofCaliforniaPublicResourceCode

(CPRC)Section4442touseoroperatethis

engineonanyforest-covered,brush-covered,

orgrass-coveredlandasdenedinCPRC4126.

Otherstatesorfederalareasmayhavesimilar

laws.

Toacquireasparkarresterforyourunit,seeyour

EngineServiceDealer.

Thissparkignitionsystemcomplieswiththe

CanadianstandardICES-002.Cesystèmed’allumage

parètincelledevèhiculeestconformeàlanorme

NMB-002duCanada.

TheenclosedEngineOwner’sManualis

suppliedforinformationregardingTheU.S.

EnvironmentalProtectionAgency(EPA)and

theCaliforniaEmissionControlRegulationof

emissionsystems,maintenanceandwarranty.

KeepthisengineOwner’sManualwithyourunit.

ShouldthisengineOwner’sManualbecome

damagedorillegible,replaceimmediately.

Replacementsmaybeorderedthroughthe

enginemanufacturer.

Labeledpowerratingsaresuppliedbytheengine

manufacturerinaccordancewithSAEtesting

andgross/netpowerratingstandards(J1940,

J1995,J1349).

Exmarkreservestherighttomakechangesor

addimprovementstoitsproductsatanytime

withoutincurringanyobligationtomakesuch

changestoproductsmanufacturedpreviously.

Exmark,oritsdistributorsanddealers,accept

noresponsibilityforvariationswhichmaybe

evidentintheactualspecicationsofitsproducts

andthestatementsanddescriptionscontained

inthispublication.

IndustrialParkBox808

Beatrice,NE68310

Contactusatwww.Exmark.com.

PrintedintheUSA

AllRightsReserved

Introduction

CONGRATULATIONSonthepurchaseofyour

ExmarkMower.Thisproducthasbeencarefully

designedandmanufacturedtogiveyouamaximum

amountofdependabilityandyearsoftrouble-free

operation.

Thismanualcontainsoperating,maintenance,

adjustment,andsafetyinstructionsforyourExmark

mower.

BEFOREOPERATINGYOURMOWER,

CAREFULLYREADTHISMANUALINITS

ENTIRETY.

Byfollowingtheoperating,maintenance,andsafety

instructions,youwillprolongthelifeofyourmower,

maintainitsmaximumefciency,andpromotesafe

operation.

Important:Tomaximizesafety,performance,

andproperoperationofthismachine,itis

essentialthatalloperatorscarefullyreadand

fullyunderstandthecontentsoftheOperator’s

manualprovidedwiththeproduct.Safe

operationofExmarkequipmentisessential.

Failuretocomplywiththeoperatinginstructions

orreceivepropertrainingmayresultininjury.

Gotohttp://www.Exmark.comforadditional

safeoperationinformation,suchassafetytips,

trainingmaterials,andOperator’smanuals.

Ifadditionalinformationisneeded,orshould

yourequiretrainedmechanicservice,contactyour

authorizedExmarkequipmentdealerordistributor.

AllExmarkequipmentdealersanddistributorsare

keptinformedofthelatestmethodsofservicing

andareequippedtoprovidepromptandefcient

serviceintheeldorattheirservicestations.They

carryamplestockofservicepartsorcansecurethem

promptlyforyoufromthefactory.

AllExmarkpartsarethoroughlytestedandinspected

beforeleavingthefactory,however,attentionis

requiredonyourpartifyouaretoobtainthefullest

measureofsatisfactionandperformance.

Wheneveryouneedservice,genuineExmarkparts,

oradditionalinformation,contactanAuthorized

ServiceDealerorExmarkCustomerServiceandhave

themodelandserialnumbersofyourproductready.

Figure1identiesthelocationofthemodelandserial

numbersontheproduct.Writethenumbersinthe

spaceprovided.

Figure1

1.Modelandserialnumberlocation

ModelNo.

SerialNo.

Contents

Introduction...........................................................3

Safety.....................................................................5

SafetyAlertSymbol.........................................5

SafeOperatingPractices..................................5

SafetyandInstructionalDecals.......................9

Specications........................................................12

Systems..........................................................12

Dimensions....................................................12

ProductOverview.................................................13

Operation..............................................................13

Controls.........................................................13

Pre-Start.........................................................15

OperatingInstructions...................................15

Maintenance..........................................................22

RecommendedMaintenanceSchedule(s)............22

PeriodicMaintenance........................................23

CheckEngineOilLevel..................................23

CheckingtheBladeBrakeClutch(Blade

BrakeClutchOnly).....................................23

CheckingtheMowerBlade.............................23

CheckforLooseHardware.............................25

ChecktheBladeBrakeClutchBail

Operation(BladeBrakeClutchUnits

Only)..........................................................25

ServiceAirFilter(KawasakiUnits)..................26

ServiceAirFilter(HondaUnit).......................26

ChangeEngineOil.........................................27

ChangeOilFilter(KawasakiX-Series

Units).........................................................28

CheckConditionOfBelt(Self-Propelled

UnitsOnly)................................................28

CheckSparkPlugs..........................................28

EmptyingtheFuelTankandCleaningthe

FuelFilter...................................................29

Adjustments......................................................29

AdjustingtheSelf-PropelDrive

(Self-PropelledUnitsOnly).........................29

AdjustingtheBladeBrakeCable(Blade

BrakeClutchUnitsOnly)............................30

Cleaning............................................................31

CleanGrassBuild-UpUnderDeck.................31

CleaningtheDischargeTunneland

Plug............................................................31

CleaningUndertheBeltCover

(Self-PropelledUnitsOnly).........................32

CleaningtheBladeBrakeClutchShield

(BladeBrakeClutchUnitsOnly).................32

CleaningUndertheCoverPlate(Non-Blade

BrakeClutchUnitsOnly)............................33

WasteDisposal...............................................33

Storage..................................................................34

PreparingtheFuelSystem...............................34

PreparingtheEngine......................................34

GeneralStorageInformation..........................34

RemovingtheLawnMowerfrom

Storage.......................................................34

Troubleshooting....................................................35

Safety

SafetyAlertSymbol

ThislawnmowermeetsorexceedstheConsumer

ProductSafetyCommission(CPSC)bladesafety

requirementsforwalk-behindrotarymowersand

theB71.4specicationsoftheAmericanNational

StandardsInstituteineffectatthetimeofproduction.

Exmarkdesignedandtestedthislawnmowertooffer

reasonablysafeservice;however,failuretocomply

withthefollowinginstructionsmayresultinpersonal

injury.

ThisSafetyAlertSymbol(Figure2)isusedbothin

thismanualandonthemachinetoidentifyimportant

safetymessageswhichmustbefollowedtoavoid

accidents.

Thissymbolmeans:ATTENTION!BECOME

ALERT!YOURSAFETYISINVOLVED!

Figure2

SafetyAlertSymbol

Thesafetyalertsymbolappearsaboveinformation

whichalertsyoutounsafeactionsorsituations

andwillbefollowedbythewordDANGER,

WARNING,orCAUTION.

DANGER:Indicatesanimminentlyhazardous

situationwhich,ifnotavoided,Willresultindeathor

seriousinjury.

WARNING:Indicatesapotentiallyhazardous

situationwhich,ifnotavoided,Couldresultindeath

orseriousinjury.

CAUTION:Indicatesapotentiallyhazardous

situationwhich,ifnotavoided,Mayresultinminor

ormoderateinjury.

Thismanualusestwootherwordstohighlight

information.Importantcallsattentiontospecial

mechanicalinformationandNoteemphasizes

generalinformationworthyofspecialattention.

SafeOperatingPractices

Training

•ReadtheOperator’sManualandothertraining

material.Iftheoperator(s)ormechanic(s)cannot

readthismanual,itistheowner’sresponsibilityto

explainthismaterialtothem;otherlanguagesmay

beavailableonourwebsite.

•Becomefamiliarwiththesafeoperationofthe

equipment,operatorcontrols,andsafetysigns.

•Alloperatorsandmechanicsshouldbetrained.

Theownerisresponsiblefortrainingtheusers.

•Neverletchildrenoruntrainedpeopleoperate

orservicetheequipment.Localregulationsmay

restricttheageoftheoperator.

•Onlyadultsandmatureteenagersshouldoperate

amower,andevenmatureteenagersshouldhave

adultsupervision.Besureateenager:

1.hasreadandunderstandstheOperator's

Manualandrecognizestherisksinvolved;

2.issufcientlymaturetousecaution;and

3.isofsufcientsizeandweighttooperate

thecontrolscomfortablyandtomanagethe

mowerwithouttakingrisks.

•Theowner/usercanpreventandisresponsible

foraccidentsorinjuriesoccurringtohimselfor

herself,otherpeopleorproperty.

Preparation

•Evaluatetheterraintodeterminewhataccessories

andattachmentsareneededtoproperlyand

safelyperformthejob.Onlyuseaccessoriesand

attachmentsapprovedbyExmark.

•Wearappropriateclothingincludingsafetyglasses,

substantialfootwear,andhearingprotection.Do

Notoperatewhenbarefootorwhenwearingopen

sandals.Longhair,looseclothingorjewelrymay

gettangledinmovingparts.

CAUTION

Thismachineproducessoundlevelsinexcess

of85dBAattheoperator’searandcancause

hearinglossthroughextendedperiodsof

exposure.

Wearhearingprotectionwhenoperatingthis

machine.

Safety

•Inspecttheareawheretheequipmentistobe

usedandremoveallrocks,toys,sticks,wires,

bones,andotherforeignobjectswhichcanbe

thrownbythemachineandmaycausepersonal

injurytotheoperatororbystanders.

DANGER

Incertainconditionsgasolineisextremely

ammableandvaporsareexplosive.

Areorexplosionfromgasolinecanburn

you,others,andcausepropertydamage.

•Fillthefueltankoutdoorsonlevelground,

inanopenarea,whentheengineiscold.

Wipeupanygasolinethatspills.

•Neverrellthefueltankordrainthe

machineindoorsorinsideanenclosed

trailer.

•DoNotllthefueltankcompletelyfull.

Fillthefueltanktothebottomoftheller

neck.Theemptyspaceinthetankallows

gasolinetoexpand.Overllingmayresult

infuelleakageordamagetotheengine

oremissionsystem.

•Neversmokewhenhandlinggasoline,and

stayawayfromanopenameorwhere

gasolinefumesmaybeignitedbyspark.

•Storegasolineinanapprovedcontainer

andkeepitoutofthereachofchildren.

•Addfuelbeforestartingtheengine.Never

removethecapofthefueltankoradd

fuelwhenengineisrunningorwhenthe

engineishot.

•Iffuelisspilled,DoNotattempttostart

theengine.Moveawayfromtheareaof

thespillandavoidcreatinganysourceof

ignitionuntilfuelvaporshavedissipated.

•DoNotoperatewithoutentireexhaust

systeminplaceandinproperworking

condition.

DANGER

Incertainconditionsduringfueling,static

electricitycanbereleasedcausingaspark

whichcanignitegasolinevapors.Areor

explosionfromgasolinecanburnyouand

othersandcausepropertydamage.

•Alwaysplacegasolinecontainersonthe

groundawayfromyourvehiclebefore

lling.

•DoNotllgasolinecontainersinsidea

vehicleoronatruckortrailerbedbecause

interiorcarpetsorplastictruckbedliners

mayinsulatethecontainerandslowthe

lossofanystaticcharge.

•Whenpractical,removegas-powered

equipmentfromthetruckortrailerand

refueltheequipmentwithitswheelson

theground.

•Ifthisisnotpossible,thenrefuelsuch

equipmentonatruckortrailerfroma

portablecontainer,ratherthanfroma

gasolinedispensernozzle.

•Ifagasolinedispensernozzlemustbe

used,keepthenozzleincontactwiththe

rimofthefueltankorcontaineropening

atalltimesuntilfuelingiscomplete.Do

Notuseanozzlelockopendevice.

WARNING

Gasolineisharmfulorfatalifswallowed.

Long-termexposuretovaporshascaused

cancerinlaboratoryanimals.Failuretouse

cautionmaycauseseriousinjuryorillness.

•Avoidprolongedbreathingofvapors.

•Keepfaceawayfromnozzleandgas

tank/containeropening.

•Keepawayfromeyesandskin.

•Neversiphonbymouth.

•Checkthattheoperatorpresencecontrols,

safetyswitches,andshieldsareattachedand

functioningproperly.DoNotoperateunlessthey

arefunctioningproperly.

Safety

Operation

WARNING

Operatingengineparts,especiallythemufer,

becomeextremelyhot.Severeburnscanoccur

oncontactanddebris,suchasleaves,grass,

brush,etc.cancatchre.

•Allowengineparts,especiallythemufer,to

coolbeforetouching.

•Removeaccumulateddebrisfrommuferand

enginearea.

WARNING

Engineexhaustcontainscarbonmonoxide,

whichisanodorlessdeadlypoisonthatcankill

you.

DoNotrunengineindoorsorinasmallconned

areawheredangerouscarbonmonoxidefumes

cancollect.

•Operateonlyindaylightorgoodarticiallight,

keepingawayfromholesandhiddenhazards.

•Lightningcancausesevereinjuryordeath.If

lightningisseenorthunderisheardinthearea,

DoNotoperatethemachine;seekshelter.

•Starttheenginecarefullyaccordingtoinstructions

withfeetwellawayfromtheblade.

•Neverraisedeckwithbladerunning.

•Neveroperatethemowerwithdamagedguards,

shields,orcovers.Alwayshavesafetyshields,

guards,switchesandotherdevicesinplaceandin

properworkingcondition.

•Nevermowwiththedischargedoorraised,

removedoralteredunlessthereisagrass

collectionsystemormulchkitinplaceand

workingproperly.

•Grasscatchercomponentsaresubjecttowear,

damageanddeterioration,whichcouldexpose

movingpartsorallowobjectstobethrown.

Frequentlycheckthecomponentsandreplace

themwiththemanufacturer’srecommendedparts

whennecessary.

•DoNotchangetheenginegovernorsettingor

overspeedtheengine.

•Neverattempttomakewheelheightadjustments

whiletheengineisrunning.

•Parkthemachineonlevelground.Stopengine,

waitforallmovingpartstostop,andremovethe

sparkplugwire(s).

–Beforechecking,cleaningorworkingonthe

mower.

–Afterstrikingaforeignobjectorabnormal

vibrationoccurs(inspectthemowerfor

damageandmakerepairsbeforerestarting

andoperatingthemower).

–Beforeclearingblockages.

–Wheneveryouleavethemower.

•Stopengine,waitforallmovingpartstostop:

–Beforerefueling.

–Beforedumpingthegrasscatcher.

–Beforemakingheightadjustments.

WARNING

Hands,feet,hair,clothing,oraccessoriescan

becomeentangledinrotatingparts.Contact

withtherotatingpartscancausetraumatic

amputationorseverelacerations.

•DoNotoperatethemachinewithout

guards,shields,andsafetydevicesinplace

andworkingproperly.

•Keephands,feet,hair,jewelry,orclothing

awayfromrotatingparts.

•Keepclearofthedischargeopeningatalltimes.

•Thismowerwasdesignedforoneoperator

only.Keepallothersawayfrommowerduring

operation.

•DONOToperatethemowerwhenpeople,

especiallychildren,orpetsareinthearea.

•Bealert,slowdownandusecautionwhen

makingturns.Lookbehindandtothesidebefore

changingdirections.

•Stoptheblades,slowdown,andusecaution

whencrossingsurfacesotherthangrassandwhen

transportingthemowertoandfromtheareato

bemowed.

•Beawareofthemowerdischargepathanddirect

dischargeawayfromothers.

•DoNotoperatethemowerundertheinuence

ofalcoholordrugs.

Safety

•Useextremecarewhenloadingorunloadingthe

machineintoatrailerortruck.

•Usefullwidthrampsforloadingmachineinto

trailerortruck.

•Tiethemachinedownsecurelyusingstraps,

chains,cable,orropes.Ifpossible,bothfrontand

rearstrapsshouldbedirecteddownandoutward

fromthemachine.

•Usecarewhenapproachingblindcorners,shrubs,

trees,orotherobjectsthatmayobscurevision.

SlopeOperation

UseExtremecautionwhenmowingand/orturning

onslopesaslossoftractionand/ortip-overcould

occur.Theoperatorisresponsibleforsafeoperation

onslopes.

DANGER

Operatingonwetgrassorsteepslopescan

causeslidingandlossofcontrol.Lossofcontrol

and/orlossofoperator'sfootingcouldresultina

fallwithanarmorleggettingunderthemower

orenginedeckwhichmayresultinseriousinjury,

deathordrowning.

•Mowacrossslopes,neverupanddown.

•DoNotmowslopeswhengrassiswet.

•Useextremecautionwhenmowingnear

drop-offsornearwater.

•DoNotmowexcessivelysteepslopes.

•Reducespeedanduseextremecautionon

slopes.

•Avoidsuddenturnsorrapidspeedchanges.

•Whenfeasible,avoidoperatingtheequipmentin

wetgrass.

•Progressivelygreatercareisneededastheslope

increases.

•Removeormarkobstaclessuchasrocks,tree

limbs,etc.fromthemowingarea.Tallgrasscan

hideobstacles.

•Watchforditches,holes,rocks,dipsandrisesthat

changetheoperatingangle,asroughterraincould

overturnthemachine.

•Useextremecarewithgrasscatchersor

attachments.Thesecanchangethestabilityofthe

machineandcauselossofcontrol.

MaintenanceandStorage

•Stoptheengineandremovethesparkplug

wire(s).Waitforallmovementtostopbefore

adjusting,cleaningorrepairing.

•Keepengineandengineareafreefrom

accumulationofgrass,leaves,excessivegrease

oroil,andotherdebriswhichcanaccumulate

intheseareas.Thesematerialscanbecome

combustibleandmayresultinare.

•LetenginecoolbeforestoringandDoNotstore

nearameoranyenclosedareawhereopenpilot

lightsorheatappliancesarepresent.

•Shutofffuelwhilestoringortransporting.Do

Notstorefuelnearamesordrainindoors.

•Parkmachineonlevelground.Neverallow

untrainedpersonneltoservicemachine.

•Removesparkplugwirebeforemakingany

repairs.

•Usecarewhencheckingblades.Wraptheblade(s)

orweargloves,andusecautionwhenservicing

them.Onlyreplacedamagedblades.Never

straightenorweldthem.

•Keephandsandfeetawayfrommovingparts.

Ifpossible,DoNotmakeadjustmentswiththe

enginerunning.

•Keepallguards,shieldsandallsafetydevicesin

placeandinsafeworkingcondition.

•Checkallboltsfrequentlytomaintainproper

tightness.

•Frequentlycheckforwornordeteriorating

componentsthatcouldcreateahazard.

WARNING

Removalormodicationoforiginalequipment,

partsand/oraccessoriesmayalterthewarranty,

controllability,andsafetyofthemachine.

Unauthorizedmodicationstotheoriginal

equipmentorfailuretouseoriginalExmark

partscouldleadtoseriousinjuryordeath.

Unauthorizedchangestothemachine,engine,

fuelorventingsystem,mayviolateapplicable

safetystandardssuchas:ANSI,OSHAand

NFPAand/orgovernmentregulationssuchas

EPAandCARB.

Safety

SafetyandInstructionalDecals

•Keepallsafetysignslegible.Removeallgrease,

dirtanddebrisfromsafetysignsandinstructional

labels.

•Replaceallworn,damaged,ormissingsafety

signs.

•Whenreplacementcomponentsareinstalled,be

surethatcurrentsafetysignsareafxedtothe

replacedcomponents.

•Ifanattachmentoraccessoryhasbeeninstalled,

makesurecurrentsafetysignsarevisible.

•Newsafetysignsmaybeobtainedfrom

yourauthorizedExmarkequipmentdealeror

distributororfromExmarkMfg.Co.Inc.

•Safetysignsmaybeafxedbypeelingoffthe

backingtoexposetheadhesivesurface.Apply

onlytoaclean,drysurface.Smoothtoremove

anyairbubbles.

•Familiarizeyourselfwiththefollowingsafetysigns

andinstructionlabels.Theyarecriticaltothesafe

operationofyourExmarkcommercialmower.

94-8072

103-6327

ECX160CHN21000

1.Choke–on

2.Throttle–fast

3.Continuousvariablesetting

4.Throttle–slow

116-1922

117–2718

119-0217

1.Warning—stoptheengine;stayawayfrommoving

parts;keepallguardsandshieldsinplace.

Safety

125-8403

KawasakiNon-BBCUnits

1.Pushtheprimeronce.2.Pulltherecoil-start

handle.

130-9656

BBCUnits

1.Choke3.Slow

2.Fast4.Engine—stop

130-9670

1.Severinghazardofhandorfoot;mowerblade—keep

awayfrommovingparts;keepallguardsandshields

inplace.

Safety

116-7583

1.Warning–ReadtheOperator’sManual.DoNotoperate

thismachineunlessyouaretrained.

4.Cutting/dismembermenthazardofhandorfoot,mower

blade—stayawayfrommovingparts;keepallguardsin

place.

2.Thrownobjecthazard—keepbystandersasafedistance

fromthemachine.

5.Warning—wearhearingprotection.

3.Thrownobjecthazard—DoNotoperatethemowerwithout

thereardischargeplugorbaginplace.

6.Cutting/dismembermenthazardofhandorfoot,mower

blade—DoNotoperateupanddownslopes;operate

sidetosideonslopes;stoptheenginebeforeleavingthe

operatingposition—pickupobjectsthatcouldbethrown

bytheblades;andlookbehindyouwhenbackingup.

Specications

Systems

Engine

•EngineSpecications:SeeyourEngineOwner’s

Manual

•EngineOilType:Exmark4–CyclePremium

EngineOil

•RPM:3300RPM(NoLoad)

FuelSystem

•Capacity:

S-SeriesUnit:2.0qt(1.9L)

X-SeriesUnits:4.0qt(3.8L)

•FuelRecommendations:

–Forbestresults,useonlyclean,fresh,unleaded

gasolinewithanoctaneratingof87orhigher

((R+M)/2ratingmethod).

–Oxygenatedfuelwithupto10%ethanolor

15%MTBEbyvolumeisacceptable.

–DoNotuseethanolblendsofgasoline(such

asE15orE85)withmorethan10%ethanol

byvolume.Performanceproblemsand/or

enginedamagemayresultwhichmaynotbe

coveredunderwarranty.

–DoNotusegasolinecontainingmethanol.

–DoNotstorefueleitherinthefueltankor

fuelcontainersoverthewinterunlessafuel

stabilizerisused.

–DoNotaddoiltogasoline.

•FuelFilter:Non-replaceable,intank

•FuelShut-OffValve:

S-SeriesUnit:DoesNothaveashut-offvalve.

Allotherunitshaveashut-offvalve.

SafetyInterlockSystem

ForunitswithoutaBladeBrakeClutch:Operator

musthavethebladecontrolbaildepressedtostart

theengine.Releasingthebladecontrolbailwillcause

theenginetostop.

Transmission(SelfPropelledUnits)

Variable

SpeedRange:0–4.2mph(6.8km/hr)

CuttingDeck

•CuttingWidth:21inches(53.3cm)

•BladeBrake:Whenthebladeengagementcontrol

ismovedtothedisengagedpositionafriction

brakepadstopstherotationoftheblades.

•BladeSize:(1ea.):20.88inches(53.0cm)

•Deck:21inchesrigid.Deckdesignallowsfor

bagging,mulchingorreardischarge.

•CuttingHeightAdjustment:

Adjustsfrom1inch(2.5cm)to41/2inches(11.4

cm)in1/2inch(1.3cm)increments.

•MulchingKit:StandardonX-SeriesUnits

Dimensions

CurbWeight:

98-122lb(44-55kg)Weightsmayvaryslightly

dependingonengineoption.

OverallWidth:

22inches(55.9cm)

OverallLengthandHeightat

21/2inchCuttingHeight:

HandleSettingLengthHeight

High61.00inches

(154.9cm)

39.00inches

(99.1cm)

Medium

63.00inches

(160.0cm)

37.50inches

(95.3cm)

Low

64.50inches

(163.8cm)

35.00inches

(88.9cm)

Operation

ProductOverview

Figure3

1.Grassbag

5.Dischargedoor

2.Handle6.Rearwheelheight

adjustment

3.DriveBail

(Self-PropelledUnits

Only)

7.Frontwheelheight

adjuster

4.BladeControlBail

Operation

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

Controls

BladeControlBail

LocatedontheupperhandleasshowninFigure4.

Whenthebladecontrolbailisdepressed,thesystem

sensesthattheoperatorisinthenormaloperator's

position.

•ForUnitswithaBladeBrakeClutch:When

thebladecontrolbailisreleased,thesystem

sensesthattheoperatorhasmovedfromthe

normaloperatingpositionandwillstoptheblade.

•ForUnitswithoutaBladeBrakeClutch:

Whenthebladecontrolbailisreleased,thesystem

sensesthattheoperatorhasmovedfromthe

normaloperatingpositionandwillkilltheengine.

Figure4

BladeBrakeUnitShown

1.Bladecontrollocklever(BladeBrakeUnitsOnly)

2.Bladecontrolbail

3.Handle

4.Drivebail(Self-PropelledUnitsOnly)

Self-PropelDriveBail(Self-Propelled

UnitsOnly)

LocatedontheupperhandleasshowninFigure4.

Whentheself-propeldrivebailissqueezedagainst

thehandle,theunitgroundspeedwillchangebased

Operation

onthedistancebetweenthebailandthehandle.

Whenthisbailisreleasedtheunitwillstopmoving.

Throttle-ChokeLever(HondaUnit)

Locatedontheleftsideofthehandlebar.

Theleverisusedtocontrolenginespeed.Moving

thethrottletothefullforward(Choke)positionwill

placetheleverinthechokeposition.Thechokeaids

instartingacoldengine.Movingthethrottlecontrol

forwardwillincreaseenginespeedandmovingitto

therearwilldecreaseenginespeed.

Throttle-Choke-EngineStopControl

(BladeBrakeClutchUnits)

Thethrottle-choke-enginestopcontrolislocatedon

theleftsideoftheengineasshowninFigure9.

Theleverisusedtocontrolenginespeed.Movingthe

levertothefullforward(Choke)positionwillplace

theleverinthechokeposition.Thechokeaidsin

startingacoldengine.Movingthethrottlecontrol

forwardwillincreaseenginespeedandmovingitto

therearwilldecreaseenginespeed.

Thethrottle-choke-enginestopcontrolalsoincludes

anenginekillposition.Movingtheleverintothefull

rearward(Off)positionwillkilltheengine.

BladeControlLockLever(Blade

BrakeClutchUnitsOnly)

Thebladecontrollockleverislocatedontheright

sideofthehandlenexttotheBladeControlBailas

showninFigure4.

Movingthebladecontrollockleverintothefull

forwardpositionreleasesthebladecontrolbail.

Squeezingthebladecontrolbailagainstthehandle

engagestheblade.Releasingthebladecontrolbail

automaticallydisengagestheblade.Thebladecontrol

lockleverwillresettolockthebladecontrolbail.

FuelShut-OffValve

Thefuelshutoffvalveislocatedbetweenthe

carburetorandthefueltank.Thefuelshutoffvalve

shutsofftheowoffuelwhenthemachinewill

notbeusedforafewdays,whenparkinginsidea

building,andduringtransporttoandfromthejob.

Figure5

KawasakiUnit

1.Fuelvalve

OnX-SeriesKawasakiunits,rotatethevalve1/4turn

clockwisetoshutofffuel.Rotatethevalve1/4turn

counterclockwisetoturnonfuel.

Figure6

1.Rotateclockwisetoclose

2.Rotatecounterclockwisetoopen

OntheHondaunit,thefuelshutoffvalveislocated

ontheengineasshowninFigure7.Rotate1/4turn

clockwisetoshutofffuel.Rotatethevalve1/4turn

counterclockwisetoturnonfuel.

Figure7

1.Fuelvalve

Operation

Pre-Start

Fillfueltanks.SeeFuelRecommendationsin

theSpecicationssectionforadditionalgasoline

information.

DoNotaddoiltogasoline.

DoNotoverllfueltank.Fillthefueltanktothe

bottomofthellerneck.Theemptyspaceinthe

tankallowsgasolinetoexpand.Overllingmayresult

infuelleakageordamagetotheengineoremission

system.

Makesureyouunderstandthecontrols,their

locations,theirfunctions,andtheirsafety

requirements.

RefertotheMaintenancesectionandperformallthe

necessaryinspectionandmaintenancesteps.

OperatingInstructions

HandleAdjustment

Theheightofthehandlecanbeadjustedfor

comfortableoperation.Standbehindthehandleto

determinetheheight.Toadjustthehandleheight,

positionthehardwareintooneofthethreeholesin

thehandlebracket.

OpentheFuelShut-OffValve

Rotatethevalve1/4turncounterclockwisetoturn

thefuelon(ifequipped).

StartingtheEngine

1.Connectthewiretothesparkplug.

Figure8

Hondaunit

1.Mufer

2.Oilll/dipstick

3.Fueltankcap

4.Recoilstarterhandle(locatedonhandlebar)

5.Airlter

6.Sparkplug

Figure9

Kawasakiunitswithlargefueltankshown

1.Mufer

2.Oilll/dipstick

3.Recoilstarterhandle

4.Fueltankcap

5.Throttle-choke-enginestopcontrol(BBConly)

6.Oillter

7.Aircleaner

8.Primerbulb(ifequipped)

9.Sparkplug

2.Openthefuelvalve.

Operation

3.ForKawasakiUnitswithoutaBladeBrake

Clutch:Pushtheprimerbulbrmlyandholdfor

onesecondthenrelease.

ForHondaandBBCUnits:Movethe

choke/throttlecontrolforwardtothechoke

position.

Note:DoNotusethechokewhentheengine

iswarmedup.

4.ForunitswithoutaBladeBrakeClutch:Hold

thebladecontrolbailtothehandle.

5.Pullthestarterhandlelightlyuntilyoufeel

resistance,thenpullitsharply.Allowtheropeto

returnslowly.

6.ForKawasakiUnitswithoutaBladeBrake

Clutch:Iftheenginedoesnotstart,repeatsteps3

through5.

7.ForHondaandBBCUnits:Whentheengine

starts,movethechoke/throttlecontrolbackto

thefastposition.

StoppingtheEngine

1.Bringtheunittoafullstop.

•ForunitswithoutaBladeBrakeClutch:

Releasethebladecontrolbail.Boththe

engineandthebladeshouldstopwithinthree

seconds.

•ForunitswithaBladeBrakeClutch:

Releasethebladecontrolbailandthe

bladecontrollockleverresets.Theblade

shouldstopwithinthreeseconds;the

enginewillcontinuetorun.Movethe

throttle-choke-enginestopcontroltotheStop

positiontokilltheengine.

Note:Ifthebladedoesnotstopwithin3seconds

afterreleasingthebladecontrolbail,contactan

AuthorizedServiceDealer.

2.Closethefuelshut-offvalve,ifequipped,when

themachinewillnotbeinuseforafewdays,

whentransporting,orwhentheunitisparked

insideabuilding.

OperatingtheSelf-PropelDrive

(Self-PropelledUnitsOnly)

Thelawnmowerisvariablespeed,themoreyou

squeezethedrivebailagainstthehandlethefaster

themachinetravels.

1.Starttheengine.

2.Squeezethedrivebailagainstthehandle(see

Figure4).

Note:Youcanvarythegroundspeedby

increasingordecreasingthedistancebetween

thegroundspeedcontrolbailandthehandle.

Lowerthecontrolbailtodecreasetheground

speedwhenyouaremakingaturnorifthelawn

mowerismovingtoofastforyou.Ifyoulower

thecontrolbailtoofarthelawnmowerstops

self-propelling.Squeezethegroundspeedcontrol

bailclosertothehandletoincreasetheground

speed.Whenyouholdthegroundspeedcontrol

bailtightagainstthehandle,thelawnmower

self-propelsatthemaximumgroundspeed.

Releasethedrivebailtostopmovingwhenyou

usethelawnmowerfortrimmingorwhenever

youleavethelawnmower.

3.Todisengagetheself-propeldrive,releasethe

drivebail.

Note:Themowercomeswithfreewheeling

clutcheswhichmakeiteasiertopullthemower

rearward.Todisengagetheclutches,youmay

needtopushthemowerforwardoneinch(2.5

cm)ormoreafteryoureleasetheself-propeldrive

bail.

OperatingtheBladeControlBail

(UnitsWithoutBladeBrakeClutch)

1.Squeezethebladecontrolbailagainstthehandle.

2.Starttheengine.

3.Whenthebladecontrolbailissqueezedagainst

thehandle,thebladeshouldengage.

4.Releasethebladecontrolbail.Boththeengine

andthebladeshouldstop.

OperatingtheBladeControlLever

(BladeBrakeClutchUnitsOnly)

1.Starttheengine.

2.Pushandholdthebladecontrollockleverforward

toreleasethebladecontrolbail(Figure10).

Operation

Figure10

1.Bladecontrollocklever

4.Pushforward

2.Lockedposition5.Unlockedposition

3.Bladecontrolbail

6.Squeezeagainsthandle

3.Squeezethebladecontrolbailagainstthehandle

andreleasethebladecontrollocklever;theblade

shouldengage.

4.Releasethebladecontrolbailtodisengagethe

blade.Thebladecontrollockleverwillresetto

lockthebladecontrolbail.

UsingtheMulchPlug

Occasionallyyoumaywishtousethemulchplugto

mulchthegrassandleafclippingsbackintothelawn.

•InstallingtheMulchPlug:

1.Stoptheengineandwaitforallmovingparts

tostop.

2.Removethegrassbagifitisonthemower.

3.Raisethedischargedoorandinsertthemulch

plugintothedischargeopening.Thelipon

theplugwillsnapintothemowerhousing.

Figure11

1.Mulchplug3.Lip

2.Dischargedoor4.Mowerhousing

4.Lowerthedischargedoor.

•RemovingtheMulchPlug:

Note:Whengrassisthickandlush,clippings

maycollectonandaroundthedischargetunnel

plug.Thismaymakeitdifculttoremovethe

plug.Cleantheplugthoroughlyaftereachuse.

1.Toremovethemulchplug,raisethedischarge

doorandpullthemulchplugoutofthe

dischargetunnel.

2.Lowerthedischargedoor.

CheckingtheBladeBrakeClutch

(BladeBrakeClutchUnitsOnly)

ChecktheBladeBrakeClutch(BBC)systembefore

eachusetoensurethatitisoperatingproperly.

NormalTest:

1.Stoptheengineandwaitforallmovingpartsto

stop.

2.Movethelawnmowerontoapavedsurfacein

anon-windyarea.

3.Setallfourwheelstothe21/2inches(6.4cm)

cuttingheight(seeFigure13andFigure14)

4.Takeahalfsheetofnewspaperandcrumple

itintoballsmallenoughtogounderthedeck

(about3inchesor7.6cmindiameter)asshown

inFigure12.

Operation

Figure12

1.Crumplednewspaper2.5inches(12.7cm)

5.Placetheballofnewspaper5inches(12.7cm)in

frontofthelawnmower.

6.Starttheengine.

7.Pushthebladecontrollockleverforwardto

releasethebladecontrolbail(Figure4).

8.Squeezethebladecontrolbailagainstthehandle.

bladeshouldengage.

9.Releasethebladecontrolbail.Youshouldheara

“bang.”Thebladeshouldstopinthreeseconds.

Thebladecontrollocklevershouldresettolock

thebladecontrolbail.

10.Immediatelypushthelawnmoweroverthe

newspaperball.

11.Stoptheengineandwaitforallmovingpartsto

stop.

12.Walkaroundthelawnmowertocheckforthe

newspaperball.Iftheballdidnotgounderthe

deck,repeatsteps6through11.

13.Pullthelawnmowerawayfromthenewspaper.

Ifthenewspaperballunravelsorisshredded,

thebladehasnotproperlystopped,resulting

inanunsafeoperatingcondition.Contactan

AuthorizedServiceDealer.

DANGER

Ifthebladebrakeclutchsystemisinoperative,

thebladewillcontinuetorotatewhenyou

releasethebladecontrolbail.Contactwith

thebladecouldoccur,causingseriousinjury.

•ChecktheBBCoperationbeforeeachuse.

•NeverusetheBBC-equippedlawnmower

withaninoperativesafetysystem.

•TakeyourlawnmowertoanAuthorized

ServiceDealerforrepairifthesafety

systemfailstooperateproperly.

TestUsingtheGrassBag

1.Installtheemptygrassbagonthedischarge

tunnel.

2.Starttheengine.

3.ForunitswithaBladeBrakeClutch:Pushthe

bladecontrollockleverforwardtoreleasethe

bladecontrolbail(Figure4).

4.Squeezethebladecontrolbailagainstthehandle.

5.Thebagshouldbegintoinate,indicatingthat

thebladeisengagedandrotating.

6.Releasethebladecontrolbail.Ifthebagdoesnot

immediatelydeate,itindicatesthatthebladeis

stillrotating.Thebladebrakeclutchmechanism

maybedeteriorating,and,ifignoredcouldresult

inanunsafeoperatingcondition.Havethelawn

mowerinspectedandservicedbyanAuthorized

ServiceDealer.

AdjustingtheCuttingHeight

Therearwheelsareadjustedtogetherwithaheight

adjustmentrodlocatedonthemowerhousingby

theleftrearwheel.Thefrontwheelsareadjusted

separatelybyremovingthefrontwheelshaft

assemblies,adjustingtheheight,andthenreplacing

theshaftassemblies.Thecuttingheightcanbe

adjustedfrom1inch(25mm)to41/2inches(114

mm)in1/2inch(12.7mm)increments.

Operation

WARNING

Adjustingthecuttingheightleverscouldbring

yourhandsintocontactwithamovingblade.A

movingbladecancauseseriousinjury.

•Stoptheengineandwaitforallmovementto

stopbeforeadjustingthecuttingheight.

•DoNotputyourngersunderthehousing

whenadjustingthecuttingheight.

•RearWheelAdjustment:

1.Pullthewheelheightadjustmentrodupward

toreleasethepinfromthenotchinthe

adjustmentbracket(Figure13).

Figure13

1.Pullupward4.Pin

2.Wheelheightadjustment

rod

5.Rotatetodesiredsetting

3.Adjustmentbracket6.Indicator

2.Applydownwardpressureorliftthehousing

torotatetheheightadjustmentbracket.Use

theindicatortodeterminethedesiredsetting.

3.Releasethewheelheightadjustmentrodtoset

thepinsecurelyinthedesirednotch.

•FrontWheelAdjustment

1.Pullupontheheightadjusterandpullthe

frontwheelshaftassemblyoutwardasshown

inFigure14.

Figure14

1.Frontwheelshaft

assembly

4.Frontquadrantblockcut

heights

2.Pullup5.Pulloutward

3.Heightadjuster

6.Shaftgroove

2.Insertthefrontwheelshaftassemblyintothe

desiredcutheightsettinginthefrontquadrant

block.Lowertheheightadjusterintothe

grooveonthefrontwheelshaft.Pulland

pushthewheelshaftassemblytomakesureit

haslockedintoplace.

UsingtheGrassBag

•InstallingtheGrassBag

1.Stoptheengineandwaitforallmovingparts

tostop.

2.Openthereardoor.

3.Graspthehandleonthebagandsettherear

ofthebagframeontothedoorhingebracket

(Figure15).

Operation

Figure15

1.Bag4.Doorhingebracket

2.Handle5.Reardoor

3.Bagframe

6.Lower

4.Oncethebagisseated,lowerthereardoor

ontothebag.

•MowingwiththeGrassBag

WARNING

Aworngrassbagcouldallowsmallstones

andothersimilardebristobethrowninthe

operator’sorbystander’sdirection.Thrown

objectscanresultinseriouspersonalinjuryor

deathtotheoperatororbystanders.

Checkthegrassbagfrequently.Ifitis

damaged,installanewExmarkreplacement

bag.

Cutthegrassuntilthebagisfull.

Note:DoNotoverllthebag.

•RemovingtheGrassBag

1.Stoptheengineandwaitforallmovingparts

tostop.

2.Raisethereardischargedoorandgraspthe

handleonthebag.

3.Liftthebagoffofthelawnmowerandlower

thereardischargedoor.

4.Graduallytipthebagforwardtoemptythe

clippings.

5.Toinstallthebag,refertothesectionon

InstallingtheGrassBag.

DANGER

Ifthereardischargedoordoesnotclose

completely,thelawnmowercouldthrow

objects.Thrownobjectscanresultin

seriouspersonalinjuryordeathtothe

operatororbystanders.

•Neveropenthedoortotherear

dischargeopeningwhenthebladeis

stillrunning.

•Ifyoucannotclosethedoorbecause

thegrassclippingsclogthedischarge

area,stoptheengineandgentlymove

thedischargedoorhandlebackand

forthuntilyoucanclosethedoor

completely.Ifyoustillcannotclosethe

door,removetheobstructionwitha

stick,notyourhand.

OperatingTips

•ReviewtheSafetysectionandreadthismanual

carefullybeforeoperatingthelawnmower.

•Settheenginespeedtothefastestpositionfor

thebestcuttingresults.

•Maintainasharpbladethroughoutthecutting

season.Periodicallyledownnicksontheblade.

Replacethebladewhennecessarywithanoriginal

Exmarkreplacementblade.

•Cleantheairlterfrequently.Mulchingstirsup

moreclippingsanddustwhichclogstheairlter

andreducesengineperformance.

CuttingGrass

•Grassgrowsatdifferentratesatdifferenttimes

oftheyear.Inthesummerheat,itisbesttocut

grassatthe21/2inch(64mm),3inch(76mm),

or31/2inch(90mm)cuttingheightsettings.Cut

onlyaboutathirdofthegrassbladeatatime.Do

Notcutbelowthe21/2inch(64mm)setting

unlessthegrassissparseoritislatefallwhen

grassgrowthbeginstoslowdown.

•Whencuttinggrassover6inches(15cm)tall,

rstmowatthehighestcuttingheightsettingand

walkslower;thenmowagainatalowersettingfor

thebestlawnappearance.Ifthegrassistoolong

andthegrassclumpontopofthelawn,thelawn

mowermayplugandcausetheenginetostall.

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Exmark COMMERCIAL 21 User manual

Brand: Exmark

Model: COMMERCIAL 21

Category: Lawnmowers

Type: User manual

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Exmark COMMERCIAL 21 User manual

Exmark COMMERCIAL 21 User manual

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