Exmark NAVIGATOR NV740KC User manual

Category
Lawnmowers
Type
User manual

This manual is also suitable for

NA VIGATOR®
ForSerialNos.
312,000,000&Higher
PartNo.4500-987Rev.A
WARNING
CALIFORNIA
Proposition65Warning
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.
©2011ExmarkMfg.Co.,Inc.
IndustrialParkBox808
Beatrice,NE68310
2
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.
Ifadditionalinformationisneeded,orshould
yourequiretrainedmechanicservice,contactyour
authorizedExmarkequipmentdealerordistributor.
Exmarkpartsmanualsareavailableonlineat
http://www.exmark.com
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......................11
Specications........................................................15
ModelNumbers.............................................15
Systems..........................................................15
Dimensions....................................................16
TorqueRequirements.....................................17
ProductOverview.................................................17
Operation..............................................................18
Controls.........................................................18
Pre-Start.........................................................19
OperatingInstructions...................................19
Transporting..................................................21
Maintenance..........................................................23
RecommendedMaintenanceSchedule(s)............23
PeriodicMaintenance........................................24
CheckEngineOilLevel..................................24
CheckSafetyInterlockSystem........................25
CheckforLooseHardware.............................26
ServiceAirCleaner.........................................26
ChangeEngineOil.........................................26
CheckHydraulicOilLevel..............................27
CheckTirePressures......................................27
CheckConditionOfBelts...............................27
LubricateGreaseFittings................................27
LubricateRearCasterWheelHubs..................28
LubricateBrakeHandlePivot.........................29
LubricateBrakeRodBushings........................29
LubricateSteeringLinkageRodEnds..............29
LubricateHopperActuator.............................29
CheckSparkPlugs..........................................29
ChangeHydraulicSystemFilter......................29
CheckWheelHubLocknuts...........................30
CheckWheelLugNuts...................................30
ThreadLockingAdhesives..............................30
DielectricGrease............................................30
Adjustments......................................................31
PTODriveBeltTension.................................31
PumpDriveBeltTension................................31
PTOBeltReplacement...................................31
PumpDriveBeltReplacement.......................31
BeltGuideAdjustment...................................32
AdjustSafetySwitch.......................................32
BrakeAdjustment...........................................32
AdjustSpeedControlLeverTension...............33
SpeedControlLinkageAdjustment.................33
SteeringControlLeverResponse
Adjustment................................................35
TrackingAdjustment......................................35
PTODrivePulleyAlignment..........................35
PumpDrivePulleyAlignment.........................36
RearCasterPivotBearingsPre-Load
Adjustment................................................36
HopperDoorAdjustment..............................36
PTOBrakeSpringAdjustment.......................37
Cleaning............................................................37
CleanEngineandExhaustSystem
Area...........................................................37
RemoveEngineShroudsandClean
CoolingFins...............................................37
CleanDebrisFromMachine...........................38
WasteDisposal...............................................38
Troubleshooting....................................................39
Schematics............................................................41
4
Safety
Safety
SafetyAlertSymbol
ThislawnmowermeetsorexceedstheB71.4
specicationsoftheAmericanNationalStandards
Instituteineffectatthetimeofproduction.
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:Whitelettering/Redbackground.
Indicatesanimminentlyhazardoussituationwhich,if
notavoided,Willresultindeathorseriousinjury.
WARNING:Blacklettering/Orangebackground.
Indicatesapotentiallyhazardoussituationwhich,if
notavoided,Couldresultindeathorseriousinjury.
CAUTION:Blacklettering/Yellowbackground.
Indicatesapotentiallyhazardoussituationwhich,if
notavoided,Mayresultinminorormoderateinjury.
Thismanualusestwootherwordstohighlight
information.Importantcallsattentiontospecial
mechanicalinformationandNoteemphasizes
generalinformationworthyofspecialattention.
SafeOperatingPractices
Training
ReadtheOperator’sManualandothertraining
material.Iftheoperator(s)ormechanic(s)can
notreadEnglishitistheowner’sresponsibilityto
explainthismaterialtothem.
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,longtrousers,andhearing
protection.DoNotoperatewhenbarefootor
whenwearingopensandals.Longhair,loose
clothingorjewelrymaygettangledinmoving
parts.
CAUTION
Thismachineproducessoundlevelsinexcess
of85dBAattheoperator’searandcancause
hearinglossthroughextendedperiodsof
exposure.
Wearhearingprotectionwhenoperatingthis
machine.
5
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.
WARNING
Gasolineisharmfulorfatalifswallowed.
Long-termexposuretovaporshascaused
cancerinlaboratoryanimals.Failuretouse
cautionmaycauseseriousinjuryorillness.
Avoidprolongedbreathingofvapors.
Keepfaceawayfromnozzleandgas
tank/containeropening.
Keepawayfromeyesandskin.
Neversiphonbymouth.
6
Safety
Checkthattheoperator'spresencecontrols,
safetyswitches,andshieldsareattachedand
functioningproperly.DoNotoperateunlessthey
arefunctioningproperly.
Operation
WARNING
Operatingengineparts,especiallythemufer,
becomeextremelyhot.Severeburnscanoccur
oncontactanddebris,suchasleaves,grass,
brush,etc.cancatchre.
Allowengineparts,especiallythemufer,to
coolbeforetouching.
Removeaccumulateddebrisfrommuferand
enginearea.
Installandmaintaininworkingordera
sparkarresterbeforeusingequipment
onforest-covered,grass-covered,or
brush-coveredunimprovedland.
WARNING
Engineexhaustcontainscarbonmonoxide,
whichisanodorlessdeadlypoisonthatcankill
you.
DoNotrunengineindoorsorinasmallconned
areawheredangerouscarbonmonoxidefumes
cancollect.
WARNING
OperatingaNavigatortractorwithoutan
approvedExmarkfrontmountattachment
increasesthepossibilityofoperatorentanglement
indrivewheelsorforwardtipover.Entanglement
ortip-overcouldcauseseriousinjuryordeath.
WhenoperatingaNavigatortractorwithout
anapprovedExmarkfrontmountattachment,
observethefollowing:
Keepfeetandclothingawayfromtires.
Limitoperationtominimumrequiredto
installadifferentfrontmountattachment.
Minimizespeedanduseextremecaution.
Onlyoperateonaatlevelsurface.
Donotoperateupordownatrailerramp.
Avoidsuddenaccelerationordeceleration.
Operateonlyindaylightorgoodarticiallight,
keepingawayfromholesandhiddenhazards.
Besurealldrivesareinneutralandparkingbrake
isengagedbeforestartingengine.
Neverraisedeckwithbladesrunning.
Neveroperatethemowerwithdamagedguards,
shields,orcovers.Alwayshavesafetyshields,
guards,switchesandotherdevicesinplaceandin
properworkingcondition.
Nevermowunlessthereisagrasscollection
systemormulchkitinplaceandworkingproperly.
DoNotchangetheenginegovernorsettingor
overspeedtheengine.
Parkmachineonlevelground.Stopengine,wait
forallmovingpartstostop,removekeyand
engageparkingbrake:
Beforechecking,cleaningorworkingonthe
mower.
Afterstrikingaforeignobjectorabnormal
vibrationoccurs(inspectthemowerfor
damageandmakerepairsbeforerestarting
andoperatingthemower).
Beforeclearingblockages.
Wheneveryouleavethemower.
7
Safety
Stopengine,waitforallmovingpartstostop,and
engageparkingbrake:
Beforerefueling.
Beforedumpingthegrasscatcher.
WARNING
Hands,feet,hair,clothing,oraccessoriescan
becomeentangledinrotatingparts.Contact
withtherotatingpartscancausetraumatic
amputationorseverelacerations.
DoNotoperatethemachinewithout
guards,shields,andsafetydevicesinplace
andworkingproperly.
Keephands,feet,hair,jewelry,orclothing
awayfromrotatingparts.
NEVERcarrypassengers.DONOToperate
themowerwhenpeople,especiallychildren,or
petsareinthearea.
Bealert,slowdownandusecautionwhen
makingturns.Lookbehindandtothesidebefore
changingdirections.
Stoptheblades,slowdown,andusecaution
whencrossingsurfacesotherthangrassandwhen
transportingthemowertoandfromtheareato
bemowed.
Beawareofthemowerdischargepathanddirect
dischargeawayfromothers.
DoNotoperatethemowerundertheinuence
ofalcoholordrugs.
Useextremecarewhenloadingorunloadingthe
machineintoatrailerortruck.
Usecarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayobscurevision.
SlopeOperation
UseExtremecautionwhenmowingand/orturning
onslopesaslossoftractionand/ortip-overcould
occur.Theoperatorisresponsibleforsafeoperation
onslopes.
DANGER
Operatingonwetgrassorsteepslopescancause
slidingandlossofcontrol.Wheelsdroppingover
edges,ditches,steepbanks,orwatercancause
rollovers,whichmayresultinseriousinjury,
deathordrowning.
DoNotmowslopeswhengrassiswet.
DoNotmowneardrop-offsornearwater.
DoNotmowslopesgreaterthan15degrees.
Reducespeedanduseextremecautionon
slopes.
Avoidsuddenturnsorrapidspeedchanges.
Seeinsidethebackcovertodeterminethe
approximateslopeangleoftheareatobemowed.
Useawalkbehindmowerand/orahandtrimmer
neardrop-offs,ditches,steepbanksorwater.
(
Figure3).
Figure3
1.SafeZone-Usethemowerhereonslopeslessthan15
degrees
2.DangerZone-Useawalkbehindmowerand/orhand
trimmeronslopesgreaterthan15degrees,near
drop-offsandwater.
3.Water
Removeormarkobstaclessuchasrocks,tree
limbs,etc.fromthemowingarea.Tallgrasscan
hideobstacles.
Watchforditches,holes,rocks,dipsandrisesthat
changetheoperatingangle,asroughterraincould
overturnthemachine.
Avoidsuddenstartswhenmowingdownhill.
Mowermaytipforwards.
Beawarethatoperatingonwetgrass,acrosssteep
slopesordownhillmaycausethemowertolose
8
Safety
traction.Lossoftractiontothedrivewheelsmay
resultinslidingandalossofbrakingandsteering.
Alwaysavoidsuddenstartingorstoppingona
slope.Iftireslosetraction,disengagetheblades
andproceedslowlyofftheslope.
Followthemanufacturer’srecommendationsfor
wheelweightsorcounterweightstoimprove
stability.
Useextremecarewithattachments.Thesecan
changethestabilityofthemachineandcauseloss
ofcontrol.
Note:A2–postfoldableROPS(RolloverProtection
System)isavailablefortheNavigatorasanaccessory.
AROPSisrecommendedifyouwillbemowing
nexttodrop-offs,nearwater,oronsteepbanks
whichcouldresultinarollover.Themodelnumber
fortheROPSattachmentisFRPSNAV .Contactan
AuthorizedExmarkServiceDealerformoredetails.
TheCaliforniaCodeofRegulationsrequiresROPS
andseatbelt(ifequipped)onallcommercialmowers
effectiveMarch1,2011.BecauseallNavigatorswere
designedwithanoptionalROPSaccessory,theyare
subjecttothisregulationandmustberetrottedwith
ROPS.
MaintenanceandStorage
Disengagedrives,lowerimplement,setparking
brake,stopengineandremovekeyordisconnect
sparkplugwire.Waitforallmovementtostop
beforeadjusting,cleaningorrepairing.
Keepengine,enginearea,andpumpdrivebelt
compartmentfreefromaccumulationofgrass,
leaves,excessivegreaseoroil,andotherdebris
whichcanaccumulateintheseareas.These
materialscanbecomecombustibleandmayresult
inare.
Letenginecoolbeforestoringanddonotstore
nearameoranyenclosedareawhereopenpilot
lightsorheatappliancesarepresent.
Shutofffuelwhilestoringortransporting.Do
Notstorefuelnearamesordrainindoors.
Parkmachineonlevelground.Neverallow
untrainedpersonneltoservicemachine.
Usejackstandstosupportcomponentswhen
required.
Carefullyreleasepressurefromcomponentswith
storedenergy.
Disconnectbatteryorremovesparkplugwire
beforemakinganyrepairs.Disconnectthe
negativeterminalrstandthepositivelast.
Reconnectpositiverstandnegativelast.
Usecarewhencheckingblades.Wraptheblade(s)
orweargloves,andusecautionwhenservicing
them.Onlyreplacedamagedblades.Never
straightenorweldthem.
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.
DANGER
Batteryelectrolytecontainssulfuricacid,
whichispoisonousandcancausesevere
burns.Swallowingelectrolytecanbefatalor
ifittouchesskincancausesevereburns.
Wearsafetyglassestoshieldeyes,and
rubberglovestoprotectskinandclothing
whenhandlingelectrolyte.
DoNotswallowelectrolyte.
Intheeventofanaccident,ushwith
waterandcalladoctorimmediately.
9
Safety
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,blades,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.
Safelyrelieveallpressureinthehydraulic
systembyplacingthemotioncontrollevers
inneutralandshuttingofftheenginebefore
performinganyworkonthehydraulicsystem.
ForKohlerEFI(ElectronicFuelInjection)Units:
WARNING
Fuelsystemcomponentsareunderhigh
pressure.Theuseofimpropercomponentscan
resultinsystemfailure,gasolineleakageand
possibleexplosion.
Useonlyapprovedfuellinesandfuelltersfor
highpressuresystems.
10
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.
65-2690
98-4361
98-5954
103-8425
103-8444
103-8451
1.Fast3.Neutral
2.Slow
103-8495
103-8611
11
Safety
103-9034
103-9724
109-4273
109-4638
AllUnitsExceptEFI
1.Neutral5.Engineoiltemperature
light
2.Reverse
6.Choke-on
3.Fast
7.Choke-off
4.Slow
109-7318
12
Safety
116-0404
116-1175
116-4581
EFIUnitsOnly
1.Neutral
4.Slow
2.Reverse5.Engineoiltemperature
light
3.Fast
117–2718
MoldedinLHConsole
1.PTO-disengage
3.Parkbrake-release
2.PTO-engage
4.Parkbrake-engage
13
Safety
MoldedintoFrontofHopper
14
Specications
Specications
ModelNumbers
SerialNos:312,000,000andHigher
NV640KC;NV740KC;NV730EKC
Systems
Engine
EngineSpecications:SeeyourEngineOwner’s
Manual
EngineOilType:Exmark4–CyclePremium
EngineOil
RPM:FullSpeed:3600±50RPM(NoLoad)Idle:
1500RPM
FuelSystem
Capacity:7.5gal.(28L)
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:
AllunitsexceptKohlerEFI:
KohlerP/N2405013
KohlerEFI:
KohlerP/N2505042
FuelShut-OffValve:1/4turnincrementsin-line
valvebyfuellter.
ElectricalSystem
ChargingSystem:FlywheelAlternator
ChargingCapacity:
AllunitsexceptKohlerEFI:15amps
KohlerEFI:20amps
BatteryType:BCIGroupU1
BatteryVoltage:12Volt
Polarity:NegativeGround
Fuses:Two20ampandone30ampbladetype
SafetyInterlockSystem:
PTOmustbedisengaged,brakeengaged,and
speedcontrolleverinneutralpositiontostart
engine.(Itisnotnecessaryfortheoperatorto
beintheseattostarttheengine.)
OperatormustbeinseatwhenPTOis
engaged,brakeisdisengaged,orspeedcontrol
leverismovedoutofneutralorenginewill
stop.
Enginewillstopinthefollowingconditions:
Ifthespeedcontrolleverismovedfrom
neutralpositionwhilebrakeisengaged.
IfthePTOisengagedwhilethehopper
istiltedup.
OperatorControls
SteeringandMotionControl:
SpeedControllever,locatedonRHconsole,
setsmaximumforwardspeed.
Steeringlevers,centeredinfrontoftheseat,
controlthespeedanddirectionoftravelof
therespectivedrivewheels.
Movingspeedcontrolleverrearwardtothe
neutralpositionplacesthedrivesystemin
neutral.
Note:Theunitmaybemovedinreverse
whilethespeedcontrolisintheneutral
positionbypullingbackonthesteeringlevers.
15
Specications
PTOEngagementLever:EngagesdrivetoPTO
(mowerdeck)andblower.
ParkingBrakeLever:Pullbacktoengageparking
brake.
Seat
Type:Standardseatwithhighback,foampadded
(internalsuspension).
Mounting:Seatishingedtotiltupforaccessto
hydraulicpumpsandothercomponents.Theseat
isheldinthetiltedpositionwithalink.
Armrests:None.
SeatSafetySwitch:Internaltothebottomseat
cushion,nonserviceable.Timedelaymodule
incorporatedintotheSafetyInterlockSystem
eliminatesroughgroundcut-outs.
HydrostaticGroundDriveSystem
HydrostaticPumps:TwoHydroGearvariable
displacementpistonpumps.
WheelMotors:HydroGearplanetaryreduction
motors.
HydraulicOilType:UseExmarkPremiumHydro
oil.
HydraulicOilCapacity:4.0qt.(3.8L)
HydraulicFilter:Replaceablecartridgetype.
Summeruseabove32°F(0°C):
P/N109-0071:25microns,10psibypass
Winterusebelow32°F(0°C):
P/N1-523541:40microns,18psibypass
Speeds:
0-7.0mph(11.3km/hr)forward.
0-5.5mph(8.6km/hr)reverse.
Drivewheelreleasevalvesallowmachinetobe
movedwhenengineisnotrunning.
Tires&Wheels
Drive
Front
Caster
RearCaster
Pneumatic
(Air-Filled)
Semi-
Pneumatic
Semi-
Pneumatic
Quantity
221
Tread
“Multi-Trac
C/S”
SmoothSmooth
Drive
Front
Caster
RearCaster
Size
18x
10.50-10
8x3.00-413x8.00-6
PlyRating
4
Pressure
15psi(103
kPa)
CuttingDeck
(Soldseparately)
ModelNumbers:
CD42CD
CD48CD
CuttingWidth:
42inchDeck:42inch(106.7cm)
48inchDeck:48inch(121.9cm)
Discharge:Center
BladeSize:(2ea.)
w/42inchDeck:22.00inches(55.9cm)
w/48inchDeck:25.00inches(63.5cm)
DeckDrive:
Clutchingbeltonhorizontalengineshaft.
DualAsectionhexagonbeltwithspring
tensionedidlertojackshaftandblower.
Heavy-dutycastiron,spiralbevelgearboxis
naldrivetoblades.
Deck:
Fulloatingdeckisattachedtoout-frontsupport
frame.Deckdesignallowsforbaggingor
mulching.
DeckDepth:
42inchDeck:45/8inches(11.7cm)
48inchDeck:45/8inches(11.7cm)
Dimensions
OverallWidth:
WithoutDeck42inchDeck48inchDeck
42.6inches(108.2
cm)
43.2inches(109.7
cm)
49.2inches(125.0
cm)
16
ProductOverview
OverallLength:
WithoutDeck42inchDeck48inchDeck
67.3inches(170.9
cm)
91.8inches(233.2
cm)
94.5inches(240.0
cm)
OverallHeight:
WithoutDeck42inchDeck48inchDeck
51.2inches
(130.0cm)
51.2inches
(130.0cm)
51.2inches
(130.0cm)
TreadWidth:(CentertoCenterof
Tires,Widthwise)
42inchDeck48inchDeck
DriveWheels32.7inches
(83.1cm)
32.7inches
(83.1cm)
WheelBase:(CenterofDriveWheel
toCenterofRearCasterWheel)
42inchDeck48inchDeck
44.2inches(112.3cm)44.2inches(112.3cm)
CurbWeight:
42inchDeck48inchDeck
850lb(386kg)1145lb(519kg)
TorqueRequirements
BoltLocation
Torque
BladeMountingBolt85-110ft-lb(115-149N-m)
EngineMountingBolts
30-35ft-lb(41-47N-m)
WheelLugNuts
90-95ft-lb(122-129N-m)
WheelMotorMounting
Bolts
72-77ft-lb(98-104N-m)
WheelHubLocknut210-250ft-lb
(285-339N-m)
ProductOverview
Figure4
1.SpeedControlLever4.SteeringLevers
2.Controls5.PTOEngagementLever
3.FuelCap
6.ParkingBrakeLever
17
Operation
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Controls
SteeringLevers
Locatedinthecenterinfrontoftheseat.
Pullingbackonthesteeringlevers,progressively
slows,thenreversesthedirectionoftravelofthe
respectivedrivewheels.
Bymovingbothsteeringleversanequalamountback,
themachinecanbesloweddownortravelbackward
inastraightline.
Steeringiscontrolledbyvaryingthepositionofthe
steeringleversrelativetoeachother.
SpeedControlLever
Locatedonrighthandconsole.
Thespeedcontrolleversetsmaximumforwardspeed.
Movingspeedcontrolleverrearwardtotheneutral
positionplacesthedrivesysteminneutral.
ChokeControl(AllUnitsExcept
KohlerEFI)
Locatedonthecontrolconsolefrontrighthandside.
Chokeisusedtoaidinstartingacoldengine.The
chokecontrolispulledouttobeinthe“ON”position
andpushedintobeinthe“OFF”position.DoNot
runawarmenginewithchokeinthe“ON”position.
ThrottleControl
Locatedonrighthandconsole.
Thethrottleisusedtocontrolenginespeed.Moving
throttleleverforwardwillincreaseenginespeedand
movingthrottlelevertotherearwilldecreaseengine
speed.
BrakeLever
Locatedonleftsideofunit,betweentheseatand
console.
Thebrakeleverengagesaparkingbrakeonthedrive
wheels.
Pulltheleverupandrearwardtoengagethebrake.
Pushtheleverforwardanddowntodisengagethe
brake.
Theunitmustbetieddownandbrakeengagedwhen
transporting.
IgnitionSwitch
Locatedontherighthandconsole.
Theignitionswitchisusedtostartandstopthe
engine.Theswitchhasthreepositions“OFF”,“ON”
and“START”.Insertkeyintoswitchandrotate
clockwisetothe“ON”position.Rotateclockwiseto
thenextpositiontoengagethestarter(keymustbe
heldagainstspringpressureinthisposition).
Note:Brakemustbeengaged,speedcontrollever
rearward(neutralposition)andPTOdisengagedto
startengine.(Itisnotnecessaryfortheoperatorto
beintheseattostarttheengine.)
HourMeter
Locatedontherighthandconsole.
Thehourmeterisconnectedtoapressureswitch
installedintheengineblockanditrecordsthe
numberofhoursthattheenginehasrun.Ifthe
ignitionswitchisleftonwithoutenginerunning,
hourmeterwillnotrun.
Note:Thisswitchisnotalowoilsensorandwillnot
alerttheoperatoriftheengineoilislow.
FuelShut-OffValve
Locatedinfuellinebyfueltankandfuellter
(accessiblebyraisingthehopper).
Thefuelshut-offvalveisusedtoshutoffthefuel
whenthemachinewillnotbeusedforafewdays,
duringtransporttoandfromthejobsite,andwhen
parkedinsideabuilding.
Rotatethevalve1/4turnclockwisetoshutoffthe
fuel.rotatethevalve1/4turncounterclockwiseto
turnonthefuel.
DriveWheelReleaseValves
Locatedonthetopleftfrontcornerofhydrostatic
pumps.
Drivewheelreleasevalvesareusedtoreleasethe
hydrostaticdrivesystemtoallowthemachinetobe
18
Operation
pushedwithouttheenginerunning.Tiltseatupto
gainaccesstopumps.
Witha7/16wrench,turnbothvalvesoneturn
counterclockwisetoreleasedrivesystem.Turn
clockwisetoresetsystem.DoNotovertighten.Do
Nottowmachine.
TrackingAdjustmentKnob
Locatedundertheseatontheleftpumpcontrollink.
Rotatingthisknoballowsnetuningadjustmentsso
thatthemachinetracksstraightwiththedrivelevers
inthefullforwardposition.
Rununitat3/4speedforatleast5minutesto
bringhydraulicoiluptooperatingtemperature.
Stopmachineandwaitforallmovingpartstostop.
Engageparkbrake.Tiltseatforwardtogainaccess
tothetrackingknob.Rotatetheknobtowardsthe
righttosteerrightandrotatetowardsthelefttosteer
left.Adjustin1/8turnincrementsuntilthemachine
tracksstraight.Checkthatthemachinedoesnotcreep
wheninneutralwiththeparkbrakesdisengaged.
Important:DoNotrotatetheknobtoofar,as
thismaycausethemachinetocreepinneutral.
RefertotheMotionControlLinkageAdjustment
sectioninMaintenance.
PTOEngagementLever
Locatedimmediatelyleftoftheleftconsole.
Levermustbemoveduptothe“ROTATE”position
toengagethePTOandblowerdrives.Leverismoved
downtothe“STOP”positiontostopthedrives.
EngineOilTemperatureLightand
Buzzer
Locatedontherightconsole.
Theengineoiltemperaturelightmonitorsthe
temperatureoftheengineoil.Anilluminatedengine
oiltemperaturelightandintermittentbuzzingsound
signalstheengineisoverheating.
ElectronicControlUnitMalfunction
Indicator
KohlerEFIUnitsOnly:
Theelectroniccontrolunit(ECU)continuously
monitorsoperationoftheEFIsystem.Ifaproblem
orfaultwithinthesystemisdetected,themalfunction
indicatorlight(MIL)isilluminated.TheMIListhe
lightlocatedintherightconsolepaneltotherightof
thethrottlecontrol.Followthetroubleshootingsteps
outlinedintheKohlerengineoperator’smanualifthe
MILisilluminated.
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
OpentheFuelShut-OffValve
Thefuelshut-offvalveislocatedontherightsideof
unitinfuellinenexttothefuellter.Raisethehopper
toaccess.Rotatethevalve1/4counterclockwiseto
turnonfuel.
StartingtheEngine
1.Movethespeedcontrollevertotheneutral
position.
2.Pullupandbackontheparkingbrakeleverto
engagetheparkingbrake.
3.PushthePTOengagementleverdowntothe
“STOP”position.
Note:Itisnotnecessaryfortheoperatortobe
intheseattostarttheengine.
4.Placethethrottlemidwaybetweenthe“SLOW”
and“FAST”positions.
5.Onacoldengine,pushthechokeleverforward
intothe“ON”position(exceptKohlerEFI).
19
Operation
Onawarmengine,leavethechokeinthe“OFF”
position.
6.Turnignitionswitchtothe“START”position.
Releasetheswitchassoonastheenginestarts.
Important:DoNotcranktheengine
continuouslyformorethantensecondsata
time.Iftheenginedoesnotstart,allowa60
secondcool-downperiodbetweenstarting
attempts.Failuretofollowtheseguidelines
canburnoutthestartermotor.
7.Ifthechokeisinthe“ON”position,gradually
returnchoketothe“OFF”positionastheengine
warmsup.
EngagingthePTO
DANGER
Therotatingbladesunderthemowerdeckare
dangerous.Bladecontactcancauseserious
injuryorkillyou.
DoNotputhandsorfeetunderthemoweror
mowerdeckwhenthebladesareengaged.
DANGER
Anuncovereddischargeopeningwillallow
objectstobethrowninanoperator’sor
bystander’sdirection.Also,contactwiththe
blowerbladescouldoccur.Thrownobjectsor
bladecontactcancauseseriousinjuryordeath.
Neveroperatethemowerwiththehopperor
hopperdoorraised,removed,oralteredunless
thereisamulchkitinplaceandworking
properly.
ThePTOleverengagesthePTOandblower.Besure
thatthehopperisdown,thehopperdoorissecurely
closed,andallpersonsareclearofthemowerdeck
anddischargeareabeforeengagingPTO.
Important:Operatormustbeinseatbeforethe
PTOcanbeengaged.
1.Setthethrottletothe“MIDWAY”position.
2.PullthePTOleverupwarduntillockedover
center.
3.Placethethrottleinthe“FAST”positiontobegin
mowing.
DisengagingthePTO
1.Setthethrottletothe“MIDWAY”position.
2.PushPTOleverdowntothe“STOP”position
stoppingthePTOandblower.
StoppingtheEngine
1.Bringtheunittoafullstop.
2.DisengagethePTO.
3.Movespeedcontrollevertotheneutralposition.
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.
DrivingtheMachine
CAUTION
Machinecanspinveryrapidlybypositioningone
levertoomuchaheadoftheother.Operatormay
losecontrolofthemachine,whichmaycause
damagetothemachineorinjury.
Usecautionwhenmakingturns.
Slowthemachinedownbeforemakingsharp
turns.
Important:Tobeginmovement(forwardor
backward)theoperatormustbeintheseat,the
brakelevermustbedisengaged(pusheddown)
beforethespeedcontrollevercanbemoved
forwardortheenginewillstop.
DrivingForward
1.Starttheengine.
2.Releasetheparkingbrake.
3.Tomoveforwardinastraightlinemovethespeed
controlleverforward.
20
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Exmark NAVIGATOR NV740KC User manual

Category
Lawnmowers
Type
User manual
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