Exmark ARX481CKA30000 User manual

STAND-ON
AERATOR
ForSerialNos.
315,000,000&Higher
PartNo.4502-175Rev.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.
Exmarkreservestherighttomakechangesor
addimprovementstoitsproductsatanytime
withoutincurringanyobligationtomakesuch
changestoproductsmanufacturedpreviously.
Exmark,oritsdistributorsanddealers,accept
noresponsibilityforvariationswhichmaybe
evidentintheactualspecicationsofitsproducts
andthestatementsanddescriptionscontained
inthispublication.
©2014ExmarkMfg.Co.,Inc.
2101AshlandAve
Beatrice,NE683102
Contactusatwww.Exmark.com.
PrintedintheUSA
AllRightsReserved

Introduction
CONGRATULATIONSonthepurchaseofyour
ExmarkAerator.Thisproducthasbeencarefully
designedandmanufacturedtogiveyouamaximum
amountofdependabilityandyearsoftrouble-free
operation.
Thismanualcontainsoperating,maintenance,
adjustment,andsafetyinstructionsforyourExmark
aerator.
BEFOREOPERATINGYOURAERATOR,
CAREFULLYREADTHISMANUALINITS
ENTIRETY.
Byfollowingtheoperating,maintenance,andsafety
instructions,youwillprolongthelifeofyouraerator,
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.
3

Contents
Introduction...........................................................3
Safety.....................................................................5
SafetyAlertSymbol.........................................5
SafeOperatingPractices..................................5
SafetyandInstructionalDecals......................10
Specications........................................................15
ModelNumbers.............................................15
Systems..........................................................15
Dimensions....................................................16
TorqueRequirements.....................................16
ProductOverview.................................................17
Operation..............................................................17
Controls.........................................................17
Pre-Start.........................................................19
OperatingInstructions...................................19
Transporting..................................................21
Maintenance..........................................................23
RecommendedMaintenanceSchedule(s)............23
PeriodicMaintenance........................................24
CheckEngineOilLevel..................................24
CheckBatteryCharge.....................................24
CheckTines...................................................26
CheckSafetyInterlockSystem........................26
CheckforLooseHardware.............................27
ServiceAirCleaner.........................................27
ChangeEngineOil.........................................27
CheckAuxiliaryHydraulicOilLevel................27
CheckHydraulicTransmissionOil
Level..........................................................28
CheckTirePressures......................................28
CheckConditionandTensionOf
Belts...........................................................28
CheckConditionOfChains............................28
CheckConditionOfSprockets.......................28
LubricateChains............................................28
LubricateGreaseFittings................................28
LubricateCasterWheelHubs.........................29
CheckSparkPlugs..........................................30
ChangeAuxiliaryHydraulicReservoirFluid
andFilter....................................................30
ChangeHydraulicTransmissionFiltersand
Fluid..........................................................30
CheckTransmissionOutputShaftNut
TorqueSpecication...................................31
CheckWheelHubNutsTorque
Specication...............................................31
CheckWheelLugNutsTorque
Specication...............................................31
CheckSparkArrester(ifequipped)..................31
ThreadLockingAdhesives..............................32
Adjustments......................................................33
AuxiliaryPumpDriveBeltAdjustment...........33
TransmissionDriveBeltTension....................33
JackshaftDriveChainTension
Adjustment................................................33
DriveWheelChainTension
Adjustment................................................33
TineDriveChainAdjustment.........................34
AdjustingtheParkingBrake............................34
AdjustingtheBrakeSwitch.............................34
MotionControlLinkageAdjustment..............35
CasterPivotBearingsPre-Load
Adjustment................................................35
Cleaning............................................................36
CleanEngineandExhaustSystem
Area...........................................................36
RemoveEngineShroudsandClean
CoolingFins...............................................36
CleanDebrisFromMachine...........................36
WasteDisposal...............................................37
Troubleshooting....................................................38
Schematics............................................................40
4

Safety
Safety
SafetyAlertSymbol
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
readthismanualitistheowner’sresponsibilityto
explainthismaterialtothem;otherlanguagesmay
beavailableonourwebsite.
•Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.
Theownerisresponsiblefortrainingtheusers.
•Neverletchildrenoruntrainedpeopleoperate
orservicetheequipment.Localregulationsmay
restricttheageoftheoperator.
•Onlyadultsandmatureteenagersshouldoperate
anaerator,andevenmatureteenagersshouldhave
adultsupervision.Besureateenager:
1.hasreadandunderstandstheOperator's
Manualandrecognizestherisksinvolved;
2.issufcientlymaturetousecaution;and
3.isofsufcientsizeandweighttooperate
thecontrolscomfortablyandtomanagethe
aeratorwithouttakingrisks.
•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.
•Inspecttheareawheretheequipmentistobe
usedandremoveallrocks,toys,sticks,wires,
bones,andotherforeignobjectswhichcanbe
thrownbythemachineandmaycausepersonal
injurytotheoperatororbystanders.
5

Safety
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.
6

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.
•Besurealldrivesareinneutralandparkingbrake
isengagedbeforestartingengine.
•Neveroperatethemachinewithdamagedguards,
shields,orcovers.Alwayshavesafetyshields,
guards,switchesandotherdevicesinplaceandin
properworkingcondition.
•DoNotchangetheenginegovernorsettingor
overspeedtheengine.
•Parkmachineonlevelground.Stopengine,wait
forallmovingpartstostop,removekeyand
engageparkingbrake:
–Beforechecking,cleaningorworkingonthe
machine.
–Afterstrikingaforeignobjectorabnormal
vibrationoccurs(inspectthemachinefor
damageandmakerepairsbeforerestarting
andoperatingthemachine).
–Beforeclearingblockages.
–Wheneveryouleavethemachine.
•Stopengine,waitforallmovingpartstostop,and
engageparkingbrake:
–Beforerefueling.
WARNING
Hands,feet,hair,clothing,oraccessoriescan
becomeentangledinrotatingparts.Contact
withtherotatingpartscancausetraumatic
amputationorseverelacerations.
•DoNotoperatethemachinewithout
guards,shields,andsafetydevicesinplace
andworkingproperly.
•Keephands,feet,hair,jewelry,orclothing
awayfromrotatingparts.
•NEVERcarrypassengers.DONOToperate
themachinewhenpeople,especiallychildren,or
petsareinthearea.
•Bealert,slowdownandusecautionwhen
makingturns.Lookbehindandtothesidebefore
changingdirections.
•Raisethetines,slowdown,andusecautionwhen
crossingsurfacesotherthangrassandwhen
transportingthemachinetoandfromthework
area.
•DoNotoperatethemachineundertheinuence
ofalcoholordrugs.
•Useextremecarewhenloadingorunloadingthe
machineintoatrailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayobscurevision.
SlopeOperation
UseExtremewhenaeratingand/orturningon
slopesaslossoftractionand/ortip-overcouldoccur.
Theoperatorisresponsibleforsafeoperationon
slopes.
7

Safety
DANGER
Operatingonwetgrassorsteepslopescancause
slidingandlossofcontrol.Wheelsdroppingover
edges,ditches,steepbanks,orwatercancause
rollovers,whichmayresultinseriousinjury,
deathordrowning.
•DoNotoperateonslopeswhengrassiswet.
•DoNotoperateneardrop-offsornearwater.
•DoNotoperateonslopesgreaterthan15
degrees.
•Reducespeedanduseextremecautionon
slopes.
•Avoidsuddenturnsorrapidspeedchanges.
•Reducetinedownpressuretopreventthedrive
tiresfromraisingoffthegroundandtoprevent
thefronttiresfromraisingoffoftheground
whileaeratinguphill.
•Seeinsidethebackcovertodeterminethe
approximateslopeangleoftheareatobeaerated.
•Removeormarkobstaclessuchasrocks,tree
limbs,etc.fromtheworkingarea.Tallgrasscan
hideobstacles.
•Watchforditches,holes,rocks,dipsandrisesthat
changetheoperatingangle,asroughterraincould
overturnthemachine.
•Avoidsuddenstartswhenaeratinguphillbecause
themachinemaytipbackwards.Themachineis
morestablegoinguphillwiththetinesdisengaged.
•Beawarethatoperatingonwetgrass,acrosssteep
slopesordownhillmaycausethemachinetolose
traction.Lossoftractiontothedrivewheelsmay
resultinslidingandalossofbrakingandsteering.
•Alwaysavoidsuddenstartingorstoppingona
slope.
•Followthemanufacturer’srecommendationsfor
wheelweightsorcounterweightstoimprove
stability.
•Useextremecarewithattachments.Thesecan
changethestabilityofthemachineandcauseloss
ofcontrol.
MaintenanceandStorage
•Raisethetines,settheparkingbrake,stopengine
andremovekeyordisconnectsparkplugwire.
Waitforallmovementtostopbeforeadjusting,
cleaningorrepairing.
•Keepengineandengineareafreefromexcessive
greaseoroilandotherdebriswhichcan
accumulateintheseareas.Thesematerialscan
becomecombustibleandmayresultinare.
•Letenginecoolbeforestoringanddonotstore
nearameoranyenclosedareawhereopenpilot
lightsorheatappliancesarepresent.
•Shutofffuelwhilestoringortransporting.Do
Notstorefuelnearamesordrainindoors.
•Parkmachineonlevel,hardground.Neverallow
untrainedpersonneltoservicemachine.
•Usejackstandstosupportcomponentswhen
required.
•Carefullyreleasepressurefromcomponentswith
storedenergy.
•Disconnectbatteryorremovesparkplugwire
beforemakinganyrepairs.Disconnectthe
negativeterminalrstandthepositivelast.
Reconnectpositiverstandnegativelast.
•Usecarewhencheckingandservicingtines.Wrap
thetine(s)orweargloves,andusecautionwhen
servicingthem.Onlyreplacedamagedtines.
Neverstraightenorweldthem.
•Keephandsandfeetawayfrommovingparts.
Ifpossible,donotmakeadjustmentswiththe
enginerunning.
•Chargebatteriesinanopenwellventilatedarea,
awayfromsparkandames.Unplugcharger
beforeconnectingordisconnectingfrombattery.
Wearprotectiveclothinganduseinsulatedtools.
DANGER
Chargingorjumpstartingthebatterymay
produceexplosivegases.Batterygasescan
explodecausingseriousinjury.
•Keepsparks,ames,orcigarettesaway
frombattery.
•Ventilatewhenchargingorusingbattery
inanenclosedspace.
•Makesureventingpathofbatteryis
alwaysopenoncebatteryislledwith
acid.
•Alwaysshieldeyesandfacefrombattery.
8

Safety
DANGER
Batteryelectrolytecontainssulfuricacid,
whichispoisonousandcancausesevere
burns.Swallowingelectrolytecanbefatalor
ifittouchesskincancausesevereburns.
•Wearsafetyglassestoshieldeyes,and
rubberglovestoprotectskinandclothing
whenhandlingelectrolyte.
•DoNotswallowelectrolyte.
•Intheeventofanaccident,ushwith
waterandcalladoctorimmediately.
CAUTION
Iftheignitionisinthe“ON”positionthere
ispotentialforsparksandengagementof
components.Sparkscouldcauseanexplosion
ormovingpartscouldaccidentallyengage
causingpersonalinjury.
Besureignitionswitchisinthe“OFF”
positionbeforechargingthebattery.
•Keepallguards,shieldsandallsafetydevicesin
placeandinsafeworkingcondition.
•Checkallboltsfrequentlytomaintainproper
tightness.
•Frequentlycheckforwornordeteriorating
componentsthatcouldcreateahazard.
WARNING
Removingstandardoriginalequipmentparts
andaccessoriesmayalterthewarranty,traction,
andsafetyofthemachine.Failuretouseoriginal
Exmarkpartscouldcauseseriousinjuryor
death.Makingunauthorizedchangestothe
engine,fuelorventingsystem,mayviolateEPA
andCARBregulations.
Replaceallpartsincluding,butnotlimitedto,
tires,belts,tines,andfuelsystemcomponents
withoriginalExmarkparts.
WARNING
Hydraulicuidescapingunderpressure
canpenetrateskinandcauseinjury.Fluid
accidentallyinjectedintotheskinmustbe
surgicallyremovedwithinafewhoursbyadoctor
familiarwiththisformofinjuryorgangrenemay
result.
•Ifequipped,makesureallhydraulicuid
hosesandlinesareingoodconditionandall
hydraulicconnectionsandttingsaretight
beforeapplyingpressuretohydraulicsystem.
•Keepbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpaper,notyourhands,to
ndhydraulicleaks.
•Beforeperforminganyworkonthehydraulic
system:
–Safelyrelieveallpressureintheground
drivehydraulicsystembyplacingthemotion
controlleversinneutralandshuttingoffthe
engine.
–Safelyrelieveallpressureintheauxiliary
hydraulicsystembyshuttingofftheengine,
turningtheignitionswitchtothe“ON”
position,andpressingthetineground
engagementswitch.Oncethetineshave
loweredtotheground,releasethetineground
engagementswitchandturntheignition
switchtothe“OFF”position.
9

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
operationofyourExmarkcommercialaerator.
93–6686
1.Hydraulicoil2.ReadtheOperator's
Manual.
115-2047
1.Warning—donottouchthehotsurface.
116-9391
117–2718
120-9570
1.Warning—stayawayfrommovingparts,keepallguards
andshieldsinplace.
121-6150
1.Cuttinghazardofhandandfoot–stayawayfrommoving
parts.
121–6161
1.Entanglementhazard,belt—stayawayfrommoving
parts;keepallguardsinplace.
10

Safety
121–6162
1.Cutting/dismembermenthazardofhandorfoot,
tines—lowerthetinestotheground;readtheOperator’s
Manualfordisassemblyprocedure.
121–6163
1.Presstolowerthetines.2.Releasetoraisethe
tines.
126-2054
1.Wheellugnuttorque95ft-lb(129N-m)(4x)
2.Wheelhubnuttorque235ft-lb(319N-m)
3.ReadandunderstandtheOperator’smanualbefore
performinganymaintenance,checktorqueevery100
hours.
11

Safety
116-9392
1.Readandunderstandtheoperator’smanualbefore
servicingthismachine.
9.Checkauxiliaryhydraulictank(OnlyuseAW-32hydrooil)
every50hours
2.Greasefrontcasterpivots(2x)every100hours10.Greasewheelbearings(2x)every25hours
3.Seeengineowner’smanualforservice11.Greasetineassemblyidlers(2x)every25hours
4.Checkauxiliarypumpdrivebelttensionevery50hours12.Greasetineshaftbearings(4x)every25hours
5.Greasefrontcasterwheelbearings(2x)every100hours13.Checktirepressure-13psi(2x)every50hours
6.Greasecontrolpivots(4x)every50hours14.Cleanandoilchainsandcheckchaintension(2x)every8
hours
7.Greasejackshaftbearings(8x)every25hours15.Greasebeltidlerpivotevery100hours
8.Checkhydraulicoillevel(2x)(Onlyuserecommended
hydrooil)every50hours
12

Safety
121–6164
1.Fast6.Wheelsandtinesrotatewhen
movingbackward
11.Warning—keepbystandersasafe
distancefromthemachine.
2.Slow7.Continuousvariablesetting12.Warning—donotoperatethe
machineunlessyouaretrained.
3.Neutral8.Choke—on13.Thrownobjecthazard—pickup
debrisbeforeoperatingthemachine.
4.Reverse9.Choke—off14.Warning—keepawayfrommoving
parts;keepallguardsinplace.
5.Wheelsandtinesrotatewhen
movingforward
10.Warning—readtheOperator’s
Manual.
15.Warning—stoptheengine,engage
theparkingbreak,andremove
theignitionkeybeforeleavingthe
machine.
121–6166
1.Tippinghazard—donotturnsharplywhiletravellingfast;
slowdownandturngradually.
3.Warning;tippinghazard—donotusesplitramps;usefull
widthrampstoloadaunitfortransport;usealoading
rampatamaximumof15degrees.
2.Tippinghazard—donotoperatethemachineonslopes
greaterthan15degrees;donotoperatethemachinenear
drop-offs.
13

Safety
126-4528
1.Rotatecounterclockwisetodecreasepressure5.Parkingbrake-release
2.Rotateclockwisetoincreasepressure6.Parkingbrake-engage
3.On-tinegroundengagementfootswitch7.Cutting/dismembermenthazardofhandorfoot,tines–stay
awayfrommovingparts;keepallguardsinplace
4.Off-tinegroundengagementfootswitch
14

Specications
Specications
ModelNumbers
SerialNos:315,000,000andHigher
ARX481CKA30000
Systems
Engine
•EngineSpecications:SeeyourEngineOwner’s
Manual
•EngineOilType:Exmark4–CyclePremium
EngineOil
•RPM:FullSpeed:3600±100RPM(NoLoad)
FuelSystem
•Capacity:5.0gal.(18.9L)
•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:ReplaceableIn-line
•FuelShut-OffValve:1/4turn
ElectricalSystem(ElectricStart)
•ChargingSystem:FlywheelAlternator
•ChargingCapacity:Kawasaki:15amps
•BatteryType:BCIGroupU1
•BatteryVoltage:12Volt
•Polarity:NegativeGround
•Fuse:30ampmainfuse
SafetyInterlockSystem
Enginewillnotstartunlesstheparkbrakeisengaged.
OperatorControls
•SteeringandMotionControl
–Separatelevers,oneachsideoftheconsole,
controlspeedanddirectionoftravelofthe
respectivedrivewheels.
–Steeringiscontrolledbyvaryingtheposition
oftheleversrelativetoeachother.
•TineGroundEngagement:Engagesthetines
withtheground.
•ParkingBrakeKnob:Engagestheparkingbrake.
•TineDownPressureControl:Adjuststinedown
pressure.
Transmission
•Twointegratedhydrostatictransmissions:Hydro
GearZT3100.
•HydraulicOilCapacity:78oz.(2.3L)per
transmission
•HydraulicFilterisreplaceablecartridgetype
•Speeds:
–0-7.0mph(11.3km/hr)forward.
–0-2.0mph(3.2km/hr)reverse.
WheelandTineDriveSystem
Drivewheelsandtheoutsideaerationtinesare
driventhroughrollerchainsbythetwohydrostatic
transmissions.
15

Specications
TiresandWheels
DriveFrontCaster
Pneumatic
(Air-Filled)
Semi-Pneumatic
Quantity22
TreadSuperTurfSmooth
Size16x6.50-813x5.00-6
PlyRating4
Pressure13psi
(90kPa)
Aeration
AerationWidth:30inches(76.2cm)
Tines:Qty:48
TineDownPressure:0-1200lbs
CoreDepth:2-5inches(5.1-12.7cm)
Holespersquarefoot:4.6
Dimensions
OverallWidth:
47.75inches(121.3cm)
OverallLength:
69.8inches(177.3cm)
OverallHeight:
52inches(132.1cm)
TreadWidth:(OutsidetoOutsideof
Tires,Widthwise)
47.75inches(121.3cm)
CurbWeight:
1015lb(460kg)
TorqueRequirements
BoltLocationTorque
EngineMountingBolts17-23ft-lb(23-31N-m)
WheelLugNuts85-105ft-lb(115-142
N-m)
WheelHubNuts211-260ft-lb
(286-352N-m)
TransmissionOutput
ShaftNuts
211-260ft-lb
(286-352N-m)
16

Operation
ProductOverview
Figure3
1.Platform4.Enginecontrols
2.Parkbrakeknob5.Fuelcap
3.Motioncontrollevers
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Controls
MotionControlLevers
Themotioncontrollevers,locatedoneachsideofthe
topconsole,controltheforwardandreversemotion
ofthemachine.
Movingtheleversforwardorbackwardturns
thewheelonthesamesideforwardorreverse
respectively.Wheelspeedisproportionaltothe
amounttheleverismoved.
Important:Thetinesarerotatingwhenthe
motioncontrolleversaremovedoutofthe
neutralposition.
Figure4
1.LHMotioncontrollever5.Forward
2.RHMotioncontrollever6.Neutral
3.Frontreferencebar7.Reverse
4.Frontofunit
ChokeControl
Locatedonthecontrolconsole(blacklever)(see
Figure5).
Thechokeisusedtoaidinstartingacoldengine.
Movingthechokeleverforwardwillputthechokein
the“ON”positionandmovingthechokelevertothe
rear,tothedetent,willputthechokeinthe“OFF”
17

Operation
position.DoNotrunawarmenginewithchokein
the“ON”position.
Figure5
1.Tinedownpressure
gauge
7.Choke
2.Tinedownpressure
control
8.RHMotioncontrollever
3.On/Off-Tineground
engagementfootswitch
9.Hourmeter
4.LHMotioncontrollever10.Parkbrake
5.Frontreferencebar11.Ignitionswitch
6.Throttle12.Tinegroundengagement
footswitch
ThrottleControl
Locatedonthecontrolconsole(redlever)(see
Figure5).
Thethrottleisusedtocontrolenginespeed.Moving
thethrottleleverforwardwillincreaseenginespeed
andmovingthethrottlelevertotherearwilldecrease
enginespeed.Movingthethrottleforwardintothe
detentisfullthrottle.
ParkBrakeHandle
Locatedontherightsideoftheignitionswitchon
thecontrolconsole(seeFigure5).
Thebrakehandleengagesaparkingbrakeinthe
transmissions.
Toengagethebrake,pullhandleoutandslide
rearward.
Torelease,pushthehandleforwardintothedetent.
Whenparkingonasteepslope,thewheelsmustbe
chockedorblockedinadditiontothebrakebeing
engaged.Theunitmustbetieddownandbrake
engagedwhentransporting.
IgnitionSwitch
Locatedontherightsideofthecontrolconsole.
Theignitionswitchisusedtostartandstopthe
engine.Theswitchhasthreepositions“OFF”,“ON”
and“START”.Insertkeyintoswitchandrotate
clockwisetothe“ON”position.Rotateclockwiseto
thenextpositiontoengagethestarter(keymustbe
heldagainstspringpressureinthisposition).Allow
thekeytoreturntothe“ON”positionimmediately
aftertheenginestarts.
Figure6
1.Off3.Start
2.On
Note:Tostarttheengine,theparkingbrakemust
beengaged.(Itisnotnecessaryfortheoperatorto
beontheplatform.)
HourMeter
Locatedabovetheignitionswitchonthecontrol
console.
Thehourmeterdisplaysthenumberofhoursof
operationthathavebeenloggedonthemachine.
FuelShut-OffValve
Locatedunderthefueltank.
Thefuelshut-offvalveisusedtoshutoffthefuel
whenthemachinewillnotbeusedforafewdays,
18

Operation
duringtransporttoandfromthejobsite,andwhen
parkedinsideabuilding.
Alignvalvehandlewiththefuellinetoopen.Rotate
90°toclose.
TineDownPressureControl
Locatedontheleftsideofthecontrolconsole(see
Figure5).
Rotatethecontrolcounterclockwisetodecreasethe
pressureandthelengthoftheaerationplug;rotate
clockwisetoincreasepressureandincreasethelength
oftheaerationplug.
On/OffTineGroundEngagement
FootSwitch
Locatedabovethetinedownpressurecontrolonthe
controlconsole.
Pushdownonthetopoftheswitchtoenablethe
tinesgroundengagementfootswitch.Pushdownon
therearoftheswitchtodisablethefootswitch..
TinesGroundEngagementFoot
Switch
Keephandsandfeetawayfromthetines.Make
surethetinesareaisclearofanyobstructions
beforeloweringit.
Locatedontheoperatorplatform(seeFigure5).
Tolowerthetinesintotheground,standonthe
tinegroundengagementswitch.Toraisethetines,
removeyourfootfromtheswitch.
TineDownPressureGauge
Locatedinthemiddleofthecontrolconsole.
Thegaugedisplaysthetinedownpressurewhen
aerating.
Pre-Start
Fillfueltankonlevelground.SeeFuel
RecommendationsintheSpecicationssectionfor
additionalgasolineinformation.
DoNotaddoiltogasoline.
DoNotoverllfueltank.Fillthefueltanktothe
bottomofthellerneck.Theemptyspaceinthe
tankallowsgasolinetoexpand.Overllingmayresult
infuelleakageordamagetotheengineoremission
system.
Makesureyouunderstandthecontrols,their
locations,theirfunctions,andtheirsafety
requirements.
RefertotheMaintenancesectionandperformallthe
necessaryinspectionandmaintenancesteps.
OperatingInstructions
OpentheFuelShut-OffValve
Rotatethevalveandalignwiththefuellinetoopen.
StartingtheEngine
1.Leavethemotioncontrolleversinneutraland
engagetheparkingbrake.
2.Placethethrottlemidwaybetweenthe“SLOW”
and“FAST”positions.
3.Onacoldengine,pushthechokeleverforward
intothe“ON”position.Onawarmengine,leave
thechokeinthe“OFF”position.
4.Turnignitionswitchtothe“START”position.
Releasetheswitchassoonastheenginestarts.
Important:DoNotcranktheengine
continuouslyformorethantensecondsata
time.Iftheenginedoesnotstart,allowa60
secondcool-downperiodbetweenstarting
attempts.Failuretofollowtheseguidelines
canburnoutthestartermotor
5.Ifthechokeisinthe“ON”position,gradually
returnchoketothe“OFF”positionastheengine
warmsup.
LoweringtheTines
DANGER
Therotatingtinesundertheenginedeckare
dangerous.Tinecontactcancauseseriousinjury
orkillyou.
DoNotputhandsorfeetundertheunitwhen
theengineisrunning.
1.Setthrottleto“MIDWAY”position.
2.Steponthetinegroundengagementfootswitch
tolowerthetines.Standontheswitchandmove
themotioncontrolleversforwardtoaerate.
19

Operation
Note:Thefootrockerbar,locatedbehindthe
tinegroundengagementfootswitch,canbe
adjustedforoperatorcomfort.Toadjust,loosen
thefootrockerbarhardware,slidethebarforward
orrearward,andretightenhardware.
3.Adjustthethrottlefortheworkingconditions.
AdjustingtheTineDownPressure
Adjusttheplugdepthbyrotatingthetinedown
pressurecontrol.Rotatethecontrolcounterclockwise
todecreasethehydraulicdownpressuretoremovea
shorterplug.Rotateclockwisetoincreasepressure
andpullalongerplug.
Firsttimeuse:setthepressureto350psi(24bar).
Idealplugdepthis3-4inches(7.6–10cm).Rotatethe
plugdepthcontroltoadapttothesoilconditions.
Keepthedrivetiresonthegroundatalltimes.
RaisingtheTines
Toraisethetines,removeyourfootfromthetine
groundengagementfootswitch.
Important:Thetinesarerotatingwhenthe
motioncontrolleverismovedoutoftheneutral
position.
StoppingtheEngine
1.Movethemotioncontrolleversbacktothe
neutralpositionandbringtheunittoafullstop.
2.Liftyourfootoffofthetinegroundengagement
footswitchcontroltoraisethetines.
3.Placethethrottleinthemidwaybetweenthe
“SLOW”and“FAST”positions.
4.Allowtheenginetorunforaminimumof15
seconds,thenturntheignitionswitchtothe
“OFF”positiontostoptheengine.
5.Engagetheparkingbrake.
6.Removethekeytopreventchildrenorother
unauthorizedpersonsfromstartingtheengine.
7.Closethefuelshut-offvalvewhenthemachine
willnotbeinuseforafewdays,when
transporting,orwhentheunitisparkedinside
abuilding.
DrivingtheMachine
CAUTION
Machinecanspinveryrapidlybypositioningone
levertoomuchaheadoftheother.Operatormay
losecontrolofthemachine,whichmaycause
damagetothemachineorinjury.
•Usecautionwhenmakingturns.
•Slowthemachinedownbeforemakingsharp
turns.
Important:Tobeginmovement(forwardor
backward),thebrakelevermustbedisengaged
(pushedforward)beforethemotioncontrol
leverscanbemoved.
Figure7
1.LHMotioncontrollever5.Forward
2.RHMotioncontrollever6.Neutral
3.Frontreferencebar7.Reverse
4.Frontofunit
DrivingForward
1.Makesurethemotioncontrolleversareinthe
neutralposition.
2.Releasetheparkingbrake.
3.Tomoveforwardinastraightline,moveboth
leversforwardwithequalpressure.
20