Exmark 4500-450 User manual

Brand: Exmark

Model: 4500-450

Category: Lawnmowers

Type: User manual

QUEST®

ForSerialNos.

790,000&Higher

PartNo.4500-450Rev.A

WARNING

CALIFORNIA

Proposition65Warning

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,or

otherreproductiveharm.

Important:Thisengineisnotequippedwith

asparkarrestermufer.Itisaviolationof

CaliforniaPublicResourceCodeSection4442to

useoroperatetheengineonanyforest-covered,

brush-covered,orgrass-coveredland.Other

statesorfederalareasmayhavesimilarlaws.

ThissparkignitionsystemcomplieswithCanadian

ICES-002,ISO14982,EN55012.

TheenclosedEngineOwner’sManualis

suppliedforinformationregardingtheUS

EnvironmentalProtectionAgency(EPA)and

theCaliforniaEmissionControlRegulationof

emissionsystems,maintenance,andwarranty.

Replacementsmaybeorderedthroughthe

enginemanufacturer.

Formodelswithstatedenginehorsepower,thegross

horsepoweroftheenginewaslaboratoryratedbythe

enginemanufacturerinaccordancewithSAEJ1940.

Asconguredtomeetsafety,emission,andoperating

requirements,theactualenginehorsepoweronthis

classoflawnmowerwillbesignicantlylower.

IndustrialParkBox808

Beatrice,NE68310

Contactusatwww.Exmark.com.

PrintedintheUSA

AllRightsReserved

Introduction

Readthisinformationcarefullytolearnhowto

operateandmaintainyourproductproperlyandto

avoidinjuryandproductdamage.Youareresponsible

foroperatingtheproductproperlyandsafely.

YoumaycontactExmarkdirectlyat

www.Exmark.comforproductandaccessory

informationorhelpndingadealer.

Wheneveryouneedservice,genuineExmarkparts,

oradditionalinformation,contactanAuthorized

ServiceDealerorExmarkCustomerServiceandhave

themodelandserialnumbersofyourproductready.

Figure1identiesthelocationofthemodelandserial

numbersontheproduct.Writethenumbersinthe

spaceprovided.

Figure1

Behindtheseat

1.Modelandserialnumberlocation

ModelNo.

SerialNo.

Contents

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

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

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

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

SafetyandInstructionalDecals.......................8

Specications.......................................................13

ModelNumbers............................................13

Systems.........................................................13

Dimensions...................................................14

TorqueRequirements....................................15

ProductOverview................................................15

Operation.............................................................16

Controls........................................................16

OperatingInstructions..................................17

RecommendedGasoline................................18

CheckingtheEngineOilLevel.......................19

StartingtheEngine........................................19

OperatingtheBlades.....................................20

StoppingtheEngine......................................20

TheSafetyInterlockSystem...........................21

DrivingForwardorBackward........................21

StoppingtheMachine....................................22

AdjustingtheHeightofCut...........................22

AdjustingtheAnti-ScalpRollers.....................23

PositioningtheSeat.......................................23

ChangingtheSeatRideSuspension................24

AdjustingtheMotionControlLevers.............24

PushingtheMachinebyHand........................24

SideDischarge...............................................25

Transporting.................................................25

OperatingTips.............................................26

Maintenance.........................................................28

RecommendedMaintenanceSchedule(s)...........28

PremaintenanceProcedures..............................29

RaisingtheSeat.............................................29

AccessingtheBattery....................................29

PeriodicMaintenance.......................................29

Lubrication....................................................29

EngineMaintenance......................................30

ServicingtheEngineOil................................31

CheckingtheHydraulicOilLevel...................32

ChangetheHydraulicSystemFilter................33

ServicingtheSparkPlug................................33

CleaningtheBlowerHousing.........................34

FuelSystemMaintenance..............................35

ElectricalSystemMaintenance.......................35

ChargingtheBattery......................................36

ServicingtheFusesandRelay.........................37

DriveSystemMaintenance............................38

CheckingtheTirePressure............................38

MowerMaintenance......................................38

ServicingtheCuttingBlades..........................38

MowerBeltMaintenance...............................40

LevelingtheMowerDeck..............................41

AdjustingtheBladeSlope..............................42

ReplacingtheDischargeDeector.................44

Adjustments.....................................................45

TrackingAdjustment.....................................45

Cleaning...........................................................45

WashingtheUndersideoftheMower.............45

Storage.................................................................47

CleaningandStorage.....................................47

Troubleshooting...................................................48

Schematics...........................................................50

Safety

SafetyAlertSymbol

Thismanualidentiespotentialhazardsandhas

safetymessagesidentiedbythesafetyalertsymbol

(Figure2),whichsignalsahazardthatmaycause

seriousinjuryordeathifyoudonotfollowthe

recommendedprecautions.

Figure2

1.Safetyalertsymbol

Thismanualusestwootherwordstohighlight

information.Importantcallsattentiontospecial

mechanicalinformationandNoteemphasizes

generalinformationworthyofspecialattention.

Thismachinemeetsorexceedsthesafety

specicationsoftheAmericanNational

StandardsInstituteB71.1-2003ineffectatthe

timeofproduction.However,improperuse

ormaintenancebytheoperatororownercan

resultininjury.Toreducethepotentialfor

injury,complywiththesesafetyinstructions

andalwayspayattentiontothesafetyalert

symbol,whichmeansCAUTION,WARNING,

orDANGER-"personalsafetyinstruction."

Failuretocomplywiththeinstructionmayresult

inpersonalinjuryordeath.

SafeOperatingPractices

ThefollowinginstructionsarefromANSIstandard

B71.1-2003.

Thisproductiscapableofamputatinghandsand

feetandthrowingobjects.Alwaysfollowallsafety

instructionstoavoidseriousinjuryordeath.

GeneralOperation

•Read,understand,andfollowallinstructionsin

theoperator’smanualandonthemachinebefore

starting.

•DoNotplacehandsorfeetnearrotatingpartsor

underthemachine.Keepclearofthedischarge

openingatalltimes.

•Allowonlyresponsibleadultswhoarefamiliar

withtheinstructionstooperatethemachine.

•Cleartheareaofobjectssuchasrocks,toys,wire,

etc.,whichcouldbepickedupandthrownbythe

blade.

•Besuretheareaisclearofotherpeoplebefore

mowing.Stopthemachineifanyoneentersthe

area.

•Nevercarrypassengers.

•DoNotmowinreverseunlessabsolutely

necessary.Alwayslookdownandbehindbefore

andwhilebackingup.

•Beawareofthemowerdischargedirectionand

DoNotpointitatanyone.Avoiddischarging

materialagainstawallorobstruction.Material

mayricochetbacktowardtheoperator.Stopthe

bladeswhencrossinggravelsurfaces.

•DoNotoperatethemowerwithouteitherthe

entiregrasscollectionsystemorthedischarge

deectorinplace.

•Bealert,slowdownandusecautionwhenmaking

turns.Lookbehindandtothesidebefore

changingdirections.

•Neverleavearunningmachineunattended.

Alwaysturnoffblades,engageparkingbrake,

stopengine,andremovekeybeforedismounting.

•Turnoffbladeswhennotmowing.Stopthe

engine,waitforallpartstocometoacomplete

stop,engageparkingbrake,andremovekey

beforecleaningthemachine,removingthegrass

oruncloggingthedeector.

•Operatethemachineonlyindaylightorgood

articiallight.

•DoNotoperatethemachinewhileunderthe

inuenceofalcoholordrugs.

•Watchfortrafcwhenoperatingnearorcrossing

roadways.

•Useextracarewhenloadingorunloadingthe

machineintoatrailerortruck

•Alwaysweareyeprotectionwhenoperatingthe

mower.

•Dataindicatesthatoperators,age60yearsand

above,areinvolvedinalargepercentageofriding

mower-relatedinjuries.Theseoperatorsshould

evaluatetheirabilitytooperatetheridingmower

Safety

safelyenoughtoprotectthemselvesandothers

fromseriousinjury.

•Alwaysfollowtherecommendationsforwheel

weightsorcounterweights.

SlopeOperation

Slopesareamajorfactorrelatedtolossofcontrol

andtip-overaccidents,whichcanresultinsevere

injuryordeath.Operationonallslopesrequiresextra

caution.Ifyoucannotbackuptheslopeorifyou

feeluneasyonit,DoNotmowit.

•DoNotmowslopesgreaterthan15degrees.

•Watchforditches,holes,rocks,dips,andrisesthat

changetheoperatingangle,asroughterraincould

overturnthemachine.

•Choosealowgroundspeedsoyouwillnothave

tostopwhileoperatingonaslope.

•DoNotmowslopeswhengrassiswet.Slippery

conditionsreducetractionandcouldcausesliding

andlossofcontrol.

•Reducespeedanduseextremecautiononslopes.

•DoNotmakesuddenturnsorrapidspeed

changes.

•Removeormarkobstaclessuchasrocks,tree

limbs,etc.fromthemowingarea.Tallgrasscan

hideobstacles.

•Avoidsuddenstartswhenmowinguphillbecause

themowermaytipbackwards.

•Beawarethatoperatingonwetgrass,acrosssteep

slopesordownhillmaycausethemowertolose

traction.Lossoftractiontothedrivewheelsmay

resultinslidingandalossofbrakingandsteering.

•Alwaysavoidsuddenstartingorstoppingona

slope.Iftireslosetraction,disengagetheblades

andproceedslowlyofftheslope.

•Useextremecarewithgrasscollectionsystemsor

otherattachments.Thesecanchangethestability

ofthemachineandcauselossofcontrol.

•DoNottrytostabilizethemachinebyputting

yourfootontheground.

•DoNotmowneardrop-offs,ditches,steepbanks

orwater.Wheelsdroppingoveredgescancause

rollovers,whichmayresultinseriousinjury,death

ordrowning.

•Useawalkbehindmowerand/orahandtrimmer

onslopesgreaterthan15degrees,neardrop-offs,

ditches,steepbanksorwater.

Children

Tragicaccidentscanoccuriftheoperatorisnot

alerttothepresenceofchildren.Childrenareoften

attractedtothemachineandthemowingactivity.

Neverassumethatchildrenwillremainwhereyou

lastsawthem.

•Keepchildrenoutofthemowingareaandunder

thewatchfulcareofanotherresponsibleadult,

nottheoperator.

•Bealertandturnthemachineoffifchildrenenter

thearea.

•Beforeandwhilebackingorchangingdirection,

lookbehind,down,andside-to-sideforsmall

children.

•Nevercarrychildren,evenwiththebladesoff.

Theymayfalloffandbeseriouslyinjuredor

interferewithsafemachineoperation.

•Childrenwhohavebeengivenridesinthepast

maysuddenlyappearinthemowingareafor

anotherrideandberunoverorbackedoverby

themower.

•Neverallowchildrentooperatethemachine.

•Useextracarewhenapproachingblindcorners,

shrubs,trees,theendofafenceorotherobjects

thatmayobscurevision.

Towing

•UsefortowingonlyifequippedwithanExmark

hitchkit.DoNotattachtowedequipmentexcept

atthehitchpoint.

•FollowExmark’srecommendationforweight

limitsfortowedequipmentandtowingonslopes.

Thisinformationcanbefoundinthehitchkit

instructionsheetandonthedecal.

•Neverallowchildrenorothersinorontowed

equipment.

•Onslopes,theweightofthetowedequipment

maycauselossoftractionandlossofcontrol.

•Travelslowlyandallowextradistancetostop.

Service

SafeHandlingofGasoline

Toavoidpersonalinjuryorpropertydamage,use

extracarewhenhandlinggasolineandotherfuels.

Theyareammableandthevaporsareexplosive.

Safety

•Extinguishallcigarettes,cigars,pipesandother

sourcesofignition.

•Useonlyanapprovedcontainer.

•Neverremovethegascaporaddfuelwhenthe

engineisrunning.Allowtheenginetocoolbefore

refueling.

•Neverrefuelthemachineindoors.

•Neverstorethemachineorfuelcontainerinside

wherethereisanopename,suchasnearawater

heaterorfurnace.

•Neverllcontainersinsideavehicleorona

truckortrailerwithaplasticliner.Alwaysplace

containersonthegroundawayfromyourvehicle

beforelling.

•Removegas-poweredequipmentfromthetruck

ortrailerandrefuelitontheground.Ifthisis

notpossible,thenrefuelsuchequipmentwitha

portablecontainer,ratherthanfromagasoline

dispensernozzle.

•Keepthenozzleincontactwiththerimofthe

fueltankorcontaineropeningatalltimesuntil

thefuelingiscomplete.DoNotuseanozzle

lock-opendevice.

•Iffuelisspilledonclothing,changeclothing

immediately.

•Neveroverllthefueltank.Replacegascapand

tightensecurely.

GeneralService:

•Neverrunamachineinsideaclosedarea.

•Keepnutsandboltstight,especiallytheblade

attachmentbolts.Keepequipmentingood

condition.

•Nevertamperwithsafetydevices.Checktheir

properoperationregularly.

•Keepthemachinefreeofgrass,leaves,orother

debrisbuild-up.Cleanupoilorfuelspillageand

fuelsoakeddebris.Allowthemachinetocool

beforestoring.

•Stopandinspecttheequipmentifyoustrikean

object.Repair,ifnecessary,beforerestarting.

•Nevermakeanyadjustmentsorrepairswiththe

enginerunning.

•Grasscollectionsystemcomponentsaresubject

towear,damageanddeterioration,whichcould

exposemovingpartsorallowobjectstobe

thrown.Frequentlycheckcomponentsand

replacewithmanufacturers’recommendedparts,

whennecessary.

•Mowerbladesaresharpandcancut.Wrapthe

bladesorweargloves,anduseextracautionwhen

servicingthem.

•Checkforproperbrakeoperationfrequently.

Adjustandserviceasrequired.

•Maintainorreplacesafetyandinstructiondecals

asnecessary.

•UseonlygenuineExmarkreplacementpartsto

ensurethatoriginalstandardsaremaintained.

ExmarkRidingMowerSafety

Thefollowinglistcontainssafetyinformationspecic

toExmarkproductsorothersafetyinformationthat

youmustknowthatisnotincludedintheANSI

standards.

•Engineexhaustcontainscarbonmonoxide,which

isanodorless,deadlypoisonthatcankillyou.Do

Notrunengineindoorsorinanenclosedarea.

•Stoptheengine,waitforallmovingpartstostop,

engageparkingbrake,disconnectsparkplug

wire(s)andremovekeybeforeperformingany

service,repairs,maintenanceoradjustments.

•Keephands,feet,hair,andlooseclothingaway

fromattachmentdischargearea,undersideof

mowerandanymovingpartswhileengineis

running.

•DoNottouchequipmentorattachmentparts

whichmaybehotfromoperation.Allowtocool

beforeattemptingtomaintain,adjustorservice.

•Batteryacidispoisonousandcancauseburns.

Avoidcontactwithskin,eyes,andclothing.

Protectyourface,eyes,andclothingwhen

workingwithabattery.

•Batterygasescanexplode.Keepcigarettes,sparks

andamesawayfrombattery.

•UseonlyExmarkapprovedattachments.

Warrantymaybevoidedifusedwithunapproved

attachments.

•Ifloadingthemachineontoatrailerortruck,use

asingle,full-widthramponly.Therampangle

shouldnotexceed15degrees.

Note:Theleftandrightsidesofthemachineare

determinedwhilesittingintheseatinthenormal

operatingposition

Safety

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea

ofpotentialdanger.Replaceanydecalthatisdamagedorlost.

93-7009

1.Warning–DoNotoperate

themowerwiththe

dischargedeectorup

orremoved;keepthe

dischargedeectorin

place.

2.Cutting/dismemberment

hazardofhandorfoot,

mowerblade–stayaway

frommovingparts.

103-6327

AllUnitsExceptQST20BE422

1.Choke–on

2.Throttle–fast

3.Continuousvariablesetting

4.Throttle–slow

106-5517

1.Warning–DoNottouchthehotsurface.

109-6008

1.ReadtheOperator’s

Manual.

3.Pushthemachine.

2.Rotatethedriverelease

knobtoloosen,slidethe

knob,andtighten.

109-6014

TractionDriveBeltRouting

Safety

109-6035

DeckDriveBeltRouting

109-6036

1.ReadtheOperator’sManual.

2.Removetheignitionkeyandreadtheinstructionsbefore

servicingorperformingmaintenance.

3.Heightofcut.

109-6210

1.ReadtheOperator’sManual.

2.Cutting/dismembermenthazard,fanandentanglement

hazard,belt–stayawayfrommovingparts.

109-6459

1.Entanglementhazard,belt—DoNotopenorremove

safetyshieldswhileengineisrunning,keepshieldsin

place.

109-9120

1.Fuse2.Diode

109-9173

1.Parkingbrake4.Neutral

2.Fast5.Reverse

3.Slow6.MachineSpeed

109-9182

1.Machinespeed4.Neutral

2.Fast5.Reverse

3.Slow

Safety

110-6691

1.Thrownobjects

hazard–keepbystanders

asafedistancefromthe

machine.

3.Cutting/dismemberment

ofhandorfoot–stay

awayfrommovingparts.

2.Thrownobjectshazard,

mower–keepthe

dischargedeector

orcollectionsystemin

place.

116-0531

116-0532

QST20BE422Unit

1.Choke–on

2.Throttle–fast

3.Continuousvariablesetting

4.Throttle–slow

116-0533

116-0551

116-0581

Safety

PTOSymbols

1.PTO—Off2.PTO—On

109-6016

1.Readtheinstructionsbeforeservicingorperforming

maintenance.

4.RefertotheOperator’smanualforgreaseinstructions.

2.Timeinterval

5.CheckhydraulicoillevelandrefertotheOperator’s

Manualforfurtherinstructions.

3.Checkoillevel.6.Checktirepressure.

Safety

109-8965

1.Warning–readtheOperator’sManual.

5.Tippinghazard–avoidsuddenandsharpturnswhileon

slopes,onlymowacrossslopeslessthan15degrees,

keepasafedistancefromwater,andonlymowupand

downslopeslessthan15degrees.

2.Readtheinstructionsbeforeservicingorperforming

maintenance;applyparkingbrake,removetheignitionkey

anddisconnectthesparkplugwire.

6.Cutting/dismembermenthazardofhandorfoot,mower

blade–stayawayfrommovingparts.

3.Thrownobjecthazard—keepbystandersasafedistance

fromthemachine,pickupdebrisbeforeoperating,keep

thedischargedeectorinplace.

7.Crushing/dismembermenthazardofbystanders,

reversing–DoNotcarrypassengers,lookbehindand

downwhenreversing.

4.Lossoftraction/controlhazard,slopes–lossof

traction/controlonslope,disengagethebladecontrol

switch(PTO),proceedofftheslopeslowly.

BatterySymbols

Someorallofthesesymbolsareonyourbattery.

1.Explosionhazard

5.ReadtheOperator’sManual.

9.Flusheyesimmediatelywithwater

andgetmedicalhelpfast.

2.Nore,openames,orsmoking6.Keepbystandersasafedistance

fromthebattery.

10.Containslead;donotdiscard.

3.Causticliquid/chemicalburnhazard

7.Weareyeprotection;explosive

gasescancauseblindnessand

otherinjuries.

4.Weareyeprotection8.Batteryacidcancauseblindnessor

severeburns.

Specications

ModelNumbers

SerialNos:790,000andHigher

QST20BE422;QST22BE482;QST24BE522

Systems

Engine

•EngineSpecications:SeeyourEngineOwner’s

Manual

•RPM:

–20HP

FullSpeed:3300±100(max)RPM(NoLoad)

Idle:1650(min)RPM

–22HP&24HP

FullSpeed:3650±100(max)RPM(NoLoad)

Idle:1650(min)RPM

FuelSystem

•Capacity:4.0gal.(15.1L)

•TypeofFuel:Regularunleadedgasoline,87

octaneorhigher.

•FuelFilter:

Briggs&StrattonP/N695666

•FuelShut-OffValve:1/4turnincrements(“ON”,

“OFF”)

ElectricalSystem

•ChargingSystem:FlywheelAlternator

•ChargingCapacity:16amps

•BatteryType:BCIGroupU1

•BatteryVoltage:12Volt

•Polarity:NegativeGround

•Fuses:One25amp,one20amp;one15amp

bladetype

•Diode:TVS

SafetyInterlockSystem

•PTOmustbedisengaged,brakeengaged,and

motioncontrolleversout(neutrallock)tostart

engine.(Itisnotnecessaryfortheoperatortobe

intheseattostarttheengine.)

•OperatormustbeinseatwhenPTOisengaged,

brakeisdisengaged,ormotioncontrolleversare

movedinorenginewillstop.

•Enginewillstopifeithertheleft,theright,or

bothleversaremovedfromneutrallockposition

whilebrakeisengaged.

OperatorControls

•SteeringandMotionControl:

Note:Motioncontrolleversareadjustableto

twoheights.

–Separatelevers,oneachsideoftheconsole,

controlspeedanddirectionoftravelofthe

respectivedrivewheels.

–Steeringiscontrolledbyvaryingtheposition

oftheleversrelativetoeachother.

–Movingmotioncontrolleversoutward(in

slots)locksthedrivesysteminneutral.

•PTOEngagementSwitch:Engageselectricclutch

(todrivebelt)whichengagesmowerblades.

•ParkingBrakeLever:Engagesparkingbrake.

•DeckHeightAdjustmentPin:Setscuttingheight

todesiredposition.

•DeckLiftAssistLever:Footpedalthatassists

inraisingthedeck.

Seat

•Type:Standardseatwithhighback,foampadded

withspringsuspensionandarmrests(armrests

areoptionalonthe42inchunit).

•Mounting:Hingedtotiltupforaccessto

hydraulicpumps,batteryandothercomponents.

Heldintiltedpositionwithlanyard.Adjustable

foreandaft.

Specications

•Armrests:Standard–foampaddedip-up

adjustableheightarmrests(optionalonthe42

inchunit).

•SeatSafetySwitch:IncorporatedintotheSafety

InterlockSystem.

HydrostaticGroundDriveSystem

•HydrostaticPumps:TwoHydroGearZT2800

Integrateddrivesystems.

•HydraulicOilType:ExmarkPremiumHydrooil.

•Speeds:

–42inchunit

◊0-6.0mph(9.7km/hr)forward.

◊0-4.0mph(6.4km/hr)reverse.

–48inchand52inchunits

◊0-7.0mph(11.3km/hr)forward.

◊0-5.0mph(8.0km/hr)reverse.

•Drivewheelreleases,locatedonleftandright

sidesofenginedeck,allowmachinetobemoved

whentheengineisnotrunningandbrakeisoff.

Tires&Wheels

DriveFrontCaster

Pneumatic

(Air-Filled)

Pneumatic

(Air-Filled)

Deck

Size

42&48524248&52

Quantity

2222

Tread

TurfTecTurfTecSawtoothSmooth

Size20x

8.00-8

20x

10.00-8

10x410x4

Ply

Rating

Pressure

13psi

(90kPa)

13psi

(90kPa)

20psi

(138kPa)

13psi

(90kPa)

CuttingDeck

•CuttingWidth:

–42inchDeck:42inches(107cm)

–48inchDeck:48inches(122cm)

–52inchDeck:52inches(132cm)

•Discharge:Side

•BladeSize:(3ea.)

–42inchDeck:21.25inches(53.9cm)

–48inchDeck:16.25inches(41.3cm)

–52inchDeck:18.00inches(45.7cm)

•BladeSpindles:Solidsteelspindleswithno

maintenancebearings.

•DeckDrive:Electricclutchmountedonvertical

engineshaft.Bladesaredrivenbyonebelt

(w/self-tensioningidler)directfromtheengine.

•Deck:Fulloatingdeckisattachedtoout-front

supportframe.Maximumturfprotectionis

providedwithanti-scalprollers.

Deckdesignallowsforbagging,mulchingorside

discharge.

•DeckDepth:

–42inchDeck:5.0inches(12.7cm)

–48inchDeck:5.0inches(12.7cm)

–52inchDeck:5.0inches(12.7cm)

•CuttingHeightAdjustment:Afootdeckliftlever

isusedtoadjustthecuttingheightfrom11/2

inch(3.8cm)to41/2inches(11.4cm)in1/2

inch(1.3cm)increments.

•MulchingKit:Optional.

Dimensions

OverallWidth:

42inch

Deck

48inch

Deck

52inch

Deck

Without

Deck

45.5inches

(116cm)

45.5inches

(116cm)

47.0inches

(119cm)

Deector

43.1inches

(109cm)

48.3inches

(122cm)

53.0inches

(135cm)

Deector

Down

54.2inches

(138cm)

59.4inches

(151cm)

64.2inches

(163cm)

OverallLength:

AllUnits

73.4inches(186cm)

ProductOverview

OverallHeight:

AllUnits

41.8inches(106cm)

TreadWidth:(CentertoCenterof

Tires,Widthwise)

42inch

Deck

48inch

Deck

52inch

Deck

Drive

Wheels

36.0inches

(91cm)

36.0inches

(91cm)

36.8inches

(93cm)

Caster

Wheels

27.9inches

(71cm)

33.5inches

(85cm)

33.5inches

(85cm)

WheelBase:(CenterofCasterTireto

CenterofDriveTire)

AllUnits

48.9inches(124cm)

CurbWeight:

42inchDeck48inchDeck52inchDeck

630lb(286kg)645lb(293kg)660lb(299kg)

TorqueRequirements

BoltLocation

Torque

SpindlePulleyNut75-85ft-lb(102-115N-m)

BladeMountingBolt

(lubricatewithanti-seize)

32-42ft-lb(43-57N-m)

EngineMountingBolts

27-33ft-lb(37-45N-m)

Anti-ScalpRollerNyloc

Nut

27-33ft-lb(37-45N-m)

WheelLugNuts

70-90ft-lb(95-122N-m)

ClutchMountingBolt

(securedwiththreadlocker)

50-55ft-lb(68-75N-m)

SparkPlug

15ft-lb(20N-m)

ProductOverview

Figure3

1.Frontcasterwheel8.Engine

2.Anti-scalproller

9.Seat

3.Heightofcutfootlever

10.Armrest

4.Dischargedeector

11.Motioncontrollevers

5.Heightofcutadjustment

12.Parkbrake

6.Reardrivewheel13.Footrest

7.Controlpanel14.Washouttting

Operation

Controls

Note:Becomefamiliarwithallofthecontrolsin

Figure3andFigure4beforeyoustarttheengineand

operatethemachine.

IgnitionSwitch

Locatedoncontrolpanel.

Theignitionswitchisusedtostartandstopthe

engine.Theswitchhasthreepositions“OFF”,

“RUN”and“START”(Figure4).Insertkeyinto

switchandrotateclockwisetothe“ON”position.

Rotateclockwisetothenextpositiontoengagethe

starter(keymustbeheldagainstspringpressurein

thisposition).

Figure4

1.Throttle/Chokelever

3.Bladecontrolswitch

(powertake-off)

2.Hourmeter4.Ignitionswitch

Note:Brakemustbeengaged,motioncontrollevers

out(neutrallockposition)andPTOswitch“OFF”to

startengine.(Itisnotnecessaryfortheoperatorto

beintheseattostarttheengine.)

TurningthekeytotheOffpositionwillstopthe

engine;however,alwaysremovethekeywhenleaving

themachinetopreventsomeonefromaccidentally

startingtheengine

BladeControlSwitch(Power

Take-Off)

Locatedonthecontrolpanel.

Thebladecontrolswitch,representedbyapower

take-off(PTO)symbol,engagesanddisengages

powertothemowerblades(seeFigure4).

Pulloutonthebladecontrolswitchto“On”to

engagetheblades.

Pushthebladecontrolswitchto“Off”todisengage

theblades.

Throttle/ChokeLever

Locatedoncontrolpanel.

Thethrottleisusedtocontrolenginespeed.Moving

throttleleverforwardwillincreaseenginespeedand

movingthrottlelevertotherearwilldecreaseengine

speed.Movingthethrottleforwardintothedetentis

fullthrottle(seeFigure4).

Thechokeisusedtoaidinstartingacoldengine.

DoNotrunawarmenginewiththechokeinthe

“ON”position.Movingtheleverforwardbeyond

thedetentwillputthechokeinthe“ON”position

andmovingthelevertothedetentwillputthechoke

inthe“OFF”position.

MotionControlLevers

Themotioncontrolleverslocatedoneachsideof

theseat(Figure3).

Themotioncontrolleversarespeedsensitivecontrols

ofindependentwheelmotors.Movingalever

forwardorbackwardturnsthewheelonthesameside

forwardorinreverse;wheelspeedisproportionalto

theamounttheleverismoved.Movingthecontrol

leversoutwardfromthecenterpositionlocksthem

intheneutralposition.Alwayspositionthemotion

controlleversintotheneutralpositionandengage

theparkbrakeleverwhenyoustopthemachineor

leaveitunattended.Theunitmustbetieddownand

brakeengagedwhentransporting.

Operation

ParkingBrakeLever

Locatedonleftsideoftheconsole(Figure3).

Thebrakeleverengagesaparkingbrakeonthedrive

wheels.

Pulltheleverupandrearwardtoengagethebrake.

Pushtheleverforwardanddowntodisengagethe

brake.

Height-of-CutFootLever

Theheightofcutleverallowstheoperatortolower

andraisethedeckfromtheseatedposition(Figure3).

Whentheleverismovedforward,awayfromthe

operatorthedeckisraisedfromthegroundand

whenmovedback,towardstheoperatoritislowered

towardtheground.Onlyadjusttheheightofcut

whilemachineisnotmoving.

HourMeter

Locatedonthecontrolpanel.

Thehourmeterisconnectedtoapressureswitch

installedintheengineblockanditrecordsthenumber

ofhoursthattheenginehasrun(Figure4).Ifthe

ignitionswitchisleftonwithoutenginerunning,hour

meterwillnotrun.Thehourmeterisstandardonthe

48and52inchunitsandoptionalforthe42inchunit.

Note:Thisswitchisnotalowoilsensorandwillnot

alerttheoperatoriftheengineoilislow .

OperatingInstructions

ThinkSafetyFirst

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

Pleasecarefullyreadallofthesafetyinstructions

anddecalsinthesafetysection.Knowingthis

informationcouldhelpyou,yourfamily,petsor

bystandersavoidinjury.

DANGER

Mowingonwetgrassorsteepslopescan

causeslidingandlossofcontrol.Wheels

droppingoveredgescancauserollovers,

whichmayresultinseriousinjury,death

ordrowning.Alossoftractionisalossof

steeringcontrol.

Toavoidlossofcontrolandpossibilityof

rollover:

•DoNotmowneardrop-offsornearwater.

•DoNotmowslopesgreaterthan15

degrees.

•Reducespeedanduseextremecaution

onslopes.

•Whenmowingslopes,graduallywork

fromlowertohigherareasontheincline.

•Avoidsuddenturnsorrapidspeed

changes.

•Turnup,intoaninclinewhenchanging

directionsonslopes.Turningdownthe

slopereducestraction.

•Attachmentschangethehandling

characteristicsofthemachine.Useextra

cautionwhenusingattachmentswiththe

machine.

Figure5

1.Water

2.DangerZone–Usewalkbehindmowerand/orhand

trimmeronslopesgreaterthan15degrees,near

drop-offsandwater.

3.SafeZone–usetheQuesthere.

Operation

Seeinsidebackcovertodeterminetheapproximate

slopeangletobemowed.

RecommendedGasoline

UseUNLEADEDRegularGasolinesuitablefor

automotiveuse(87pumpoctaneminimum).

Important:Neverusemethanol,gasoline

containingmethanol,orgasoholcontaining

morethan10%ethanolbecausethefuelsystem

couldbedamaged.DoNotmixoilwithgasoline.

DANGER

Incertainconditionsgasolineisextremely

ammableandvaporsareexplosive.

Areorexplosionfromgasolinecanburn

you,others,andcausepropertydamage.

•Fillthefueltankoutdoorsinanopen

area,whentheengineiscold.Wipeup

anygasolinethatspills.

•Neverrellthefueltankordrainthe

machineindoorsorinsideanenclosed

trailer.

•DoNotllthefueltankcompletelyfull.

Addgasolinetothefueltankuntilthe

bodyofthetankisfullbutfueldoesnot

lltheneckofthetank.Thisemptyspace

inthetankallowsgasolinetoexpand.

•Neversmokewhenhandlinggasoline,

andstayawayfromanopenameor

wheregasolinefumesmaybeignitedby

spark.

•Storegasolineinanapprovedcontainer

andkeepitoutofthereachofchildren.

Neverbuymorethana30-daysupplyof

gasoline.

•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.

WARNING

Gasolineisharmfulorfatalifswallowed.

Long-termexposuretovaporshascaused

cancerinlaboratoryanimals.Failuretouse

cautionmaycauseseriousinjuryorillness.

•Avoidprolongedbreathingofvapors.

•Keepfaceawayfromnozzleandgas

tank/containeropening.

•Keepawayfromeyesandskin.

•Neversiphonbymouth.

Operation

UsingStabilizer/Conditioner

Useafuelstabilizer/conditionerinthemachineto

providethefollowingbenets:

•Keepsgasolinefreshduringstorageof30daysor

less.Forlongerstorageitisrecommendedthat

thefueltankbedrained.

•Cleanstheenginewhileitruns.

•Eliminatesgum-likevarnishbuildupinthefuel

system,whichcauseshardstartingAddthe

correctamountofgasstabilizer/conditionerto

thegas.

Note:Afuelstabilizer/conditionerismosteffective

whenmixedwithfreshgasoline.Tominimizethe

chanceofvarnishdepositsinthefuelsystem,usefuel

stabilizeratalltimes.

Gasoline/Alcoholblends

Gasohol(upto10percentethylalcohol,90percent

unleadedgasolinebyvolume)isapprovedforfueluse

bytheenginemanufacturer.Othergasoline/alcohol

blendsarenotapproved.

FillingtheFuelTank

1.Shuttheengineoffandsetthemotioncontrols

totheneutralpositionandengageparkingbrake.

2.Cleanaroundthefueltankcapandremovethe

cap.

3.Addunleadedregulargasolineuntilthebodyof

thetankisfullbutfueldoesnotlltheneckof

thetank(Figure6).Thisspaceintheneckofthe

tankallowsgasolinetoexpand.DoNotllthe

fueltankcompletelyfull.

Figure6

1.Gastankopening3.Gastankbody

2.Filltohere,

approximately

4.Installthefueltankcapsecurely.Wipeupany

gasolinethatmayhavespilled.

CheckingtheEngineOil

Level

Beforeyoustarttheengineandusethemachine,

checktheoillevelintheenginecrankcase;referto

CheckingtheOilLevelinEngineMaintenance.

StartingtheEngine

1.Sitdownontheseatandmovethemotion

controlsoutwardtotheneutralpositionand

engagetheparkingbrake.

2.Disengagethebladesbymovingthebladecontrol

switchtoOff(Figure7).

Operation

Figure7

1.Throttle/Chokelever

5.Run

2.Bladecontrol

switch—Offposition

6.Start

3.Ignitionkey

7.Choke

4.Off8.Throttle–fast(detent

position)

3.Movetheleverforward,beyondthedetent,to

engagethechokebeforestartingacoldengine

(Figure7).

Note:Awarmorhotenginemaynotrequire

choking.

4.TurntheignitionkeytoStarttoenergizethe

starter.Whentheenginestarts,releasethekey

(Figure7).

Important:DoNotengagethestarterfor

morethan5secondsatatime.Iftheengine

failstostart,allowa60secondcool-down

periodbetweenattempts.Failuretofollow

theseinstructionscanburnoutthestarter

motor.

5.Oncetheenginestarts,movethelevertothe

detentposition.Iftheenginestallsorhesitates,

movetheleverpartiallyforwardforafewseconds.

OperatingtheBlades

Thebladecontrolswitch,representedbyapower

take-off(PTO)symbol,engagesanddisengages

powertothemowerblades.Thisswitchcontrols

powertoanyattachmentsthatdrawpowerfromthe

engine,includingthemowerdeckandcuttingblades.

EngagingtheBlades

1.Releasepressureonthemotioncontrolleversand

placethemachineinneutral.

2.MovethethrottlemidwaytotheFastposition.

Note:Alwaysengagethebladeswiththethrottle

inthemidwayposition.

3.Pulloutonthebladecontrolswitch,totheOn

position,toengagetheblades(Figure8).

Figure8

1.Throttle–Midway

position

2.Bladecontrol

switch—Onposition

4.Movethrottletofullforwardpositionbefore

mowing.

DisengagingtheBlades

Setthrottletomidwayposition.Pushtheblade

controlswitchtoOfftodisengagetheblades

(Figure7).

StoppingtheEngine

1.Bringtheunittoafullstop.

2.DisengagethePTO.

3.Movethemotioncontrolleversouttotheneutral

lockposition.

4.Engagetheparkingbrake.

5.Placethethrottlemidwaybetweenthe“SLOW”

and“FAST”positions.

6.Allowtheenginetorunforaminimumof15

seconds,thenturntheignitionswitchtothe

“OFF”positiontostoptheengine.

7.Removethekeytopreventchildrenorother

unauthorizedpersonsfromstartingengine.

8.Closethefuelshut-offvalvewhenthemachine

willnotbeinuseforafewdays,when

transporting,orwhentheunitisparkedinside

abuilding.

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Exmark 4500-450 User manual

Brand: Exmark

Model: 4500-450

Category: Lawnmowers

Type: User manual

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Exmark 4500-450 User manual

Exmark 4500-450 User manual

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