Exmark LAZER Z User manual

ForSerialNos.
720,000&Higher
LAZERZ®
AIR-COOLEDMODELS
PlaceModelNo.andSerialNo.
LabelHere(IncludedintheLiterature
Pack)orFillinBelow
DatePurchased
EngineModelNo.andSpec.No.
ModelNo.EngineSerialNo.(E/No)
SerialNo.
PartNo.4500-264Rev.A

WARNING
CALIFORNIA
Proposition65Warning
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,or
otherreproductiveharm.
Important:Whenthemowerisusedoroperated
onanyCaliforniaforest,brushorgrasscovered
land,aworkingsparkarrestermustbeattached
tothemufer.Ifnot,theoperatorisviolating
statelaw,Section4442PublicResourceCode.To
acquireasparkarresterforyourunit,seeyour
EngineServiceDealer.
ThissparkignitionsystemcomplieswithCanadian
ICES-002Cesystèmed’allumageparètincellede
vèhiculeestconformeàlanormeNMB-002du
Canada
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.
©2004–2007—ExmarkMfg.Co.,Inc.
IndustrialParkBox808
Beatrice,NE683102
Contactusatwww.Exmark.com.
PrintedintheUSA.
AllRightsReserved

EXMARK PARTS PLUS®PROGRAM
EFFECTIVE DATE: September 1, 1995
Program
If your Exmark dealer does not have the Exmark part in stock, Exmark will
get the parts to the dealer the next business day or the part will be FREE*
Guaranteed!!
How the Program Works
1. If dealer does not have part in stock for a "down" unit at the time of request by customer, the dealer contacts his distributor
by 1:00 p.m., local time, and requests Exmark Parts Plus
®
shipment of six (6) line items or less.
2. Distributor ships part(s) to dealer or customer, as requested by dealer, same day, overnight UPS Distributor bills dealer for
part and freight charges where applicable.
3. If distributor does not have the part(s) in stock to satisfy Exmark Parts Plus
®
order, he contacts Exmark by 3:00 p.m., central
time, with an Exmark Parts Plus
®
order of six (6) line items or less.
4. If order is received by 3:00 p.m. central time, Exmark ships part(s) direct to dealer or customer, as requested by distributor,
same day, overnight UPS, Exmark bills the distributor for parts and shipping charges, where applicable.
5. The customer pays for the part and freight if it is shipped under the Exmark Parts Plus
®
and if it arrives in accordance to the
program.
6. Who pays for the part and freight if it fails to arrive overnight in accordance to the program?
A. Under any circumstance the customer does not pay.
B. If the part does not arrive overnight due to:
1. The dealer not submitting the Exmark Parts Plus
®
order to his Exmark distributor by 1:00 p.m., the dealer
pays for the part and freight.
2. The Distributor being unable to ship the part the same day or not submitting the Exmark Parts Plus
®
order
to Exmark by 3:00 p.m., central time, the Distributor pays for the part and freight.
3. Exmark being unable to ship the part and the Exmark parts order is received by 3:00 p.m., central time,
Exmark pays for the part and freight.
4. If the part does not arrive overnight due to the shipper (UPS), the shipper pays for the freight and Exmark
pays for the part.
* The following restrictions apply -- The Exmark Parts Plus
®
Program is available only through participating Exmark
Dealers and applies only to orders submitted on this program Monday through Thursday. Parts Plus service is available only in
the 48 contiguous United States. UPS has initiated a Saturday delivery program to many areas of the continental United States
and can be requested for an overnight shipment on Friday to be delivered Saturday. The next day air charge, plus the Saturday
delivery fee will be the responsibility of the purchaser. Exmark Mfg. will assume no responsibility for Saturday delivery
shipments. To qualify, all Exmark Parts Plus
®
orders must be received by Exmark by 3:00 p.m., central time. Orders must be
six (6) line items or less. Exclusions from the Exmark Parts Plus
®
Program are: Any wholegood or accessory in its entirety,
engines and engine replacement parts, 5-speed Peerless transmissions and 5-speed transaxles, hydraulic or hydrostatic wheel
motors, cutter decks and engine decks or any item exceeding United Parcel Service size and weight restrictions.
Due to UPS restrictions, aerosol spray paint is considered a hazardous material and cannot be shipped via UPS next day or
Second Day Air.
Exmark Manufacturing stocks a limited supply of parts for transaxles, pumps and wheel motors. These parts can be ordered
for Next Day Air shipment but will not be guaranteed per the Parts Plus Program.
3

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,orshouldyou
requiretrainedmechanicservice,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.
4

Contents
Introduction...........................................................4
Safety.....................................................................6
SafetyAlertSymbol.........................................6
SafeOperatingPractices..................................6
SafetyandInstructionalDecals.....................11
Specications.......................................................16
ModelNumbers............................................16
Systems.........................................................16
Dimensions...................................................18
TorqueRequirements....................................19
ProductOverview................................................20
Operation.............................................................20
Controls........................................................20
Pre-Start........................................................22
OperatingInstructions..................................22
Transporting.................................................26
Maintenance.........................................................28
RecommendedMaintenanceSchedule(s)...........28
PeriodicMaintenance.......................................29
CheckEngineOilLevel.................................29
CheckBatteryCharge....................................29
CheckMowerBlades.....................................30
CheckSafetyInterlockSystem.......................30
CheckRolloverProtectionsSystems(Roll
Bar)Pins...................................................31
CheckSeatBelt..............................................31
CheckforLooseHardware............................31
ServiceAirCleaner........................................31
ChangeEngineOil........................................32
CheckHydraulicOilLevel.............................32
CheckTirePressures.....................................32
CheckConditionOfBelts..............................32
CheckSparkArrester(KohlerEFIengines
only)..........................................................33
LubricateGreaseFittings...............................33
LubricateCasterWheelHubs........................34
LubricateBrakeHandlePivot........................34
LubricateBrakeRodBushings.......................34
LubricateMotionControlBronze
Bushings...................................................35
LubricateSeatSwitchActuator(N/A
31HPBriggs&Strattonand28HP
KohlerEFIUnits).....................................35
CheckSparkPlugs.........................................35
ChangeHydraulicSystemFilter.....................36
WheelHub-SlottedNutTorque
Specication..............................................37
ThreadLockingAdhesives.............................37
MobilHTSGrease(OrFood-Grade
Anti-seize).................................................37
Copper-BasedAnti-seize..............................37
DielectricGrease...........................................37
Adjustments.....................................................38
DeckLeveling...............................................38
PumpDriveBeltTension...............................38
MuleDriveBeltTensionAdjustment.............38
DeckBeltTension........................................39
BeltGuideAdjustment..................................39
BrakeLinkAdjustment..................................40
BrakeAdjustment..........................................40
ElectricClutchAdjustment............................40
ReverseIndicatorAdjustment........................40
MotionControlLinkageAdjustment.............41
MotionControlDamperAdjustment.............42
AdjustSeatSwitch(ForallUnitsExcept
31HPBriggs&Strattonand28HP
KohlerEFIUnits).....................................42
CasterPivotBearingsPre-Load
Adjustment...............................................43
Cleaning...........................................................43
CleanEngineCoolingSystem........................43
RemoveAccumulatedDebrisfrom
Engine(Briggs&KawasakiUnits
Only).........................................................43
RemoveEngineShroudsandCleanCooling
Fins(KohlerUnitsOnly)...........................44
CleanGrassBuild-UpUnderDeck................44
WasteDisposal..............................................44
Troubleshooting...................................................45
Schematics...........................................................47
5

Safety
Safety
SafetyAlertSymbol
ThisSafetyAlertSymbol(Figure2)isusedbothin
thismanualandonthemachinetoidentifyimportant
safetymessageswhichmustbefollowedtoavoid
accidents
Thissymbolmeans:ATTENTION!BECOME
ALERT!YOURSAFETYISINVOLVED!
Figure2
1.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.
•Theowner/usercanpreventandisresponsible
foraccidentsorinjuriesoccurringtohimselfor
herself,otherpeopleorproperty.
Preparation
•Evaluatetheterraintodeterminewhataccessories
andattachmentsareneededtoproperlyand
safelyperformthejob.Onlyuseaccessoriesand
attachmentsapprovedbyExmark.
•Wearappropriateclothingincludingsafetyglasses,
substantialfootwear,longtrousers,andhearing
protection.DoNotoperatewhenbarefootor
whenwearingopensandals.Longhair,loose
clothingorjewelrymaygettangledinmoving
parts.
CAUTION
Thismachineproducessoundlevelsin
excessof85dBAattheoperator’searand
cancausehearinglossthroughextended
periodsofexposure.
Wearhearingprotectionwhenoperatingthis
machine.
•Inspecttheareawheretheequipmentistobe
usedandremoveallrocks,toys,sticks,wires,
bones,andotherforeignobjectswhichcanbe
thrownbythemachineandmaycausepersonal
injurytotheoperatororbystanders.
6

Safety
DANGER
Incertainconditionsgasolineisextremely
ammableandvaporsareexplosive.
Areorexplosionfromgasolinecanburn
you,others,andcausepropertydamage.
•Fillthefueltankoutdoorsinanopen
area,whentheengineiscold.Wipeup
anygasolinethatspills.
•Neverrellthefueltankordrainthe
machineindoorsorinsideanenclosed
trailer.
•DoNotllthefueltankcompletely
full.Addgasolinetothefueltankuntil
thelevelis1/4to1/2inch(6–13mm)
belowthebottomofthellerneck.This
emptyspaceinthetankallowsgasoline
toexpand.
•Neversmokewhenhandlinggasoline,
andstayawayfromanopenameor
wheregasolinefumesmaybeignitedby
spark.
•Storegasolineinanapprovedcontainer
andkeepitoutofthereachofchildren.
•Addfuelbeforestartingtheengine.
Neverremovethecapofthefueltankor
addfuelwhenengineisrunningorwhen
theengineishot.
•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.
•Checkthattheoperator’spresencecontrols,
safetyswitches,andshieldsareattachedand
functioningproperly.DoNotoperateunlessthey
arefunctioningproperly.
7

Safety
Operation
WARNING
Operatingengineparts,especiallythe
mufer,becomeextremelyhot.Severeburns
canoccuroncontactanddebris,suchas
leaves,grass,brush,etc.cancatchre.
•Allowengineparts,especiallythemufer,
tocoolbeforetouching.
•Removeaccumulateddebrisfrommufer
andenginearea.
•Installandmaintaininworkingordera
sparkarresterbeforeusingequipment
onforest-covered,grass-covered,or
brush-coveredunimprovedland.
WARNING
Engineexhaustcontainscarbonmonoxide,
whichisanodorlessdeadlypoisonthatcan
killyou.
DoNotrunengineindoorsorinasmall
connedareawheredangerouscarbon
monoxidefumescancollect.
•Operateonlyindaylightorgoodarticiallight,
keepingawayfromholesandhiddenhazards.
•Besurealldrivesareinneutralandparkingbrake
isengagedbeforestartingengine.Useseatbelts.
•Neveroperatethemowerwithdamagedguards,
shields,orcovers.Alwayshavesafetyshields,
guards,switchesandotherdevicesinplaceandin
properworkingcondition.
•Nevermowwiththedischargedeectorraised,
removedoralteredunlessthereisagrass
collectionsystemormulchkitinplaceand
workingproperly.
•DoNotchangetheenginegovernorsettingor
overspeedtheengine.
•Stopengine,waitforallmovingpartstostop,
removekeyandengageparkingbrake:
–Beforechecking,cleaningorworkingonthe
mower.
–Afterstrikingaforeignobjectorabnormal
vibrationoccurs(inspectthemowerfor
damageandmakerepairsbeforerestarting
andoperatingthemower).
–Beforeclearingblockages.
–Wheneveryouleavethemower.
•Stopengine,waitforallmovingpartstostop,and
engageparkingbrake:
–Beforerefueling.
–Beforedumpingthegrasscatcher.
WARNING
Hands,feet,hair,clothing,oraccessoriescan
becomeentangledinrotatingparts.Contact
withtherotatingpartscancausetraumatic
amputationorseverelacerations.
•DoNotoperatethemachinewithout
guards,shields,andsafetydevicesin
placeandworkingproperly.
•Keephands,feet,hair,jewelry,orclothing
awayfromrotatingparts.
•NEVERcarrypassengers.DONOToperate
themowerwhenpeople,especiallychildren,or
petsareinthearea.
•Bealert,slowdownandusecautionwhenmaking
turns.Lookbehindandtothesidebefore
changingdirections.
•Stoptheblades,slowdown,andusecautionwhen
crossingsurfacesotherthangrassandwhen
transportingthemowertoandfromtheareato
bemowed.
•Beawareofthemowerdischargepathanddirect
dischargeawayfromothers.
•DoNotoperatethemowerundertheinuence
ofalcoholordrugs.
•Useextremecarewhenloadingorunloadingthe
machineintoatrailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayobscurevision.
SlopeOperation
UseExtremecautionwhenmowingand/orturning
onslopesaslossoftractionand/ortip-overcould
occur.Theoperatorisresponsibleforsafeoperation
onslopes.
8

Safety
DANGER
Operatingonwetgrassorsteepslopescan
causeslidingandlossofcontrol.Wheels
droppingoveredges,ditches,steepbanks,or
watercancauserollovers,whichmayresult
inseriousinjury,deathordrowning.
•DoNotmowslopeswhengrassiswet.
•DoNotmowneardrop-offsornearwater.
•DoNotmowslopesgreaterthan15
degrees.
•Reducespeedanduseextremecaution
onslopes.
•Avoidsuddenturnsorrapidspeed
changes.
•Seeinsidethebackcovertodeterminethe
approximateslopeangleoftheareatobemowed.
•Useawalkbehindmowerand/orahandtrimmer
neardrop-offs,ditches,steepbanksorwater.
(Figure3).
Figure3
1.SafeZone-Usethe
mowerhereonslopes
lessthan15degrees
3.Water
2.DangerZone-Useawalk
behindmowerand/or
handtrimmernear
drop-offsandwater.
•Removeormarkobstaclessuchasrocks,tree
limbs,etc.fromthemowingarea.Tallgrasscan
hideobstacles.
•Watchforditches,holes,rocks,dipsandrisesthat
changetheoperatingangle,asroughterraincould
overturnthemachine.
•Avoidsuddenstartswhenmowinguphillbecause
themowermaytipbackwards.
•Beawarethatlossoftractionmayoccurgoing
downhill.Weighttransfertothefrontwheels
maycausedrivewheelstoslipandcauselossof
brakingandsteering.
•Alwaysavoidsuddenstartingorstoppingona
slope.Iftireslosetraction,disengagetheblades
andproceedslowlyofftheslope.
•Followthemanufacturer’srecommendationsfor
wheelweightsorcounterweightstoimprove
stability.
•Useextremecarewithgrasscatchersor
attachments.Thesecanchangethestabilityofthe
machineandcauselossofcontrol.
UsingtheRolloverProtectionSystem
(ROPS)
ARolloverProtectionSystem(rollbar)isinstalled
ontheunit.
WARNING
Thereisnorolloverprotectionwhentheroll
barisdown.Wheelsdroppingoveredges,
ditches,steepbanks,orwatercancause
rollovers,whichmayresultinseriousinjury,
deathordrowning.
•Keeptherollbarintheraisedandlocked
positionanduseseatbelt.
•Lowertherollbaronlywhenabsolutely
necessary.
•DoNotwearseatbeltwhentherollbar
isdown.
•Driveslowlyandcarefully.
•Raisetherollbarassoonasclearance
permits.
•Checkcarefullyforoverheadclearances(i.e.
branches,doorways,andelectricalwires)before
drivingunderanyobjectsanddonotcontactthem.
9

Safety
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.Onlyreplaceblades.Neverstraightenor
weldthem.
•Keephandsandfeetawayfrommovingparts.
Ifpossible,donotmakeadjustmentswiththe
enginerunning.
•Chargebatteriesinanopenwellventilatedarea,
awayfromsparkandames.Unplugcharger
beforeconnectingordisconnectingfrombattery.
Wearprotectiveclothinganduseinsulatedtools.
•Keepallguards,shieldsandallsafetydevicesin
placeandinsafeworkingcondition.
•Checkallboltsfrequentlytomaintainproper
tightness.
•Frequentlycheckforwornordeteriorating
componentsthatcouldcreateahazard.
•Allreplacementpartsmustbethesameas
orequivalenttothepartssuppliedasoriginal
equipment.
WARNING
Hydraulicuidescapingunderpressure
canpenetrateskinandcauseinjury.Fluid
accidentallyinjectedintotheskinmustbe
surgicallyremovedwithinafewhoursbya
doctorfamiliarwiththisformofinjuryor
gangrenemayresult.
•Makesureallhydraulicuidhoses
andlinesareingoodconditionand
allhydraulicconnectionsandttings
aretightbeforeapplyingpressureto
hydraulicsystem.
•Keepbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpaper,notyourhands,
tondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulic
systembyplacingthemotioncontrol
leversinneutralandshuttingoffthe
enginebeforeperforminganyworkon
thehydraulicsystem.
ForKohlerEFIUnits:
WARNING
Fuelsystemcomponentsareunderhigh
pressure.Theuseofimpropercomponents
canresultinsystemfailure,gasolineleakage
andpossibleexplosion.
Useonlyapprovedfuellinesandfuellters
forhighpressuresystems.
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.
1-303508
1-403005
1-513742
1-513748
1-523552
1–633462
1-633706
11

Safety
1–643339
98-5954
103–0261
KohlerEFIUnitsOnly
103-1798
AllUnitsExceptKohlerEFI
103–2750
KohlerEFIUnitsOnly
103–3270
103–3679
KohlerEFIUnitsOnly
103–4474
AllUnitsExceptKohlerEFI
12

Safety
103-4930
AllUnitsExceptKohlerEFI
103–5456
KohlerEFIUnits
103-5881
103–6319
103-6700
13

Safety
107-2102
107-2112
109-0872
109-1214
109-1215
14

Safety
109-1399
109-2219
109-3148
109–7949
103–9255
15

Specications
Specications
ModelNumbers
SerialNos:720,000andHigher
LZ27KC605;LZ28KC605;LZ28KA605;LZ31BV605;LZ31BV665;LZ31BV725
Systems
Engine
•EngineSpecications:SeeyourEngineOwner’s
Manual
•RPM:FullSpeed:3750±50RPM(NoLoad)
Idle:1500RPM
FuelSystem
•Capacity:13.5gal.(51.0L)
•TypeofFuel:Regularunleadedgasoline,87
octaneorhigher.
•FuelFilter:
–27HPKohler:
In-line15MicronKohlerP/N2405010.
–28HPKohlerEFI:
In-line22MicronExmarkP/N99–9403(low
pressure).
In-line10MicronKohlerP/N2405003(high
pressure).
–28HPKawasaki:
In-lineKawasakiP/N49019–7001.
–31HPBriggs&Stratton:
In-line30MicronBriggsP/N695327.
•FuelShut-OffValve:
AllUnitsexceptKohlerEFI:1/4turnincrements
(“ON”,“OFF”).
KohlerEFI:1/4turnincrements(lefttank,
“OFF”,righttank).
•Fuelgaugeinlefthandfueltank.
ElectricalSystem
•ChargingSystem:FlywheelAlternator
•ChargingCapacity:
–KohlerandKawasaki:15amps
–Briggs&Stratton:20amps
•BatteryType:BCIGroupU1
•BatteryVoltage:12Volt
•Polarity:NegativeGround
•Fuses:
–AllUnitsexceptKohlerEFI
Two20ampbladetype
–KohlerEFIunits
Two20ampandone10ampbladetype
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.
16

Specications
•PTOEngagementSwitch:Engageselectricclutch
(todrivebelt)whichengagesmowerblades.
•ParkingBrakeLever:Engagesparkingbrake.
•DeckHeightAdjustmentLever:Setscutting
heighttodesiredposition.
•DeckLiftAssistLever:Footpedalthatassists
inraisingthedeck.
Seat
•Type:
–27HPKohlerandKawasakiUnits:
Standardseatwithhighback,foampadded
(internalsuspension)andarmrests.
–Briggs&StrattonUnits:
Standardseatwithhighback,foampadded
(internalsuspension),armrests,andintegral
safetyswitch.
–28HPKohlerEFIUnits:
Deluxesuspensionseatwithhighback,low
prolefoam-in-placecushion(dampened,
adjustablespringsuspension),armrests,and
integralsafetyswitch.
–Optionalseataccessoriesforunitswith
standardseats:
◊Customridesuspensionsystemtoenhance
StandardSeat.
◊Deluxesuspensionseatwithhighback,
lowprolefoam-in-placecushion
(dampened,adjustablespringsuspension),
armrests,andintegralsafetyswitch.
•Mounting:Hingedtotiltupforaccessto
hydraulicpumps,batteryandothercomponents.
Heldintiltedpositionwithproprod.Adjustable
foreandaftseattrack.
•Armrests:
–Standardseat:foampaddedip-uparmrests.
–Suspensionseat:moldedadjustableip-up
armrests.
•SeatSafetySwitch:
–Kawasakiand27HPKohlerUnits:
IncorporatedintotheSafetyInterlockSystem.
Timedelayseatswitcheliminatesrough
groundcut-outs.
–Briggs&Strattonand28HPKohlerEFI
Units:
IntegralSeatSwitch.Timedelayseatswitch
eliminatesroughgroundcut-outs.
HydrostaticGroundDriveSystem
•HydrostaticPumps:TwoHydroGearvariable
displacementpistonpumps.
•WheelMotors:TwoParkerwith11/4inch
taperedshafts.
•HydraulicOilType:UseMobil115W-50
Syntheticmotoroil.
•HydraulicOilCapacity:2.1qt.(2.0L)
•HydraulicFilter:Replaceablecartridgetype.
–Summeruseabove32°F(0°C)
P/N109-4180:25microns,10psibypass
–Winterusebelow32°F(0°C)
P/N1-523541:40microns,18psibypass
•Speeds:
–0–9.8mph(15.8km/hr)forward.
–0-6.3mph(10.1km/hr)reverse.
•Drivewheelreleasevalvesallowmachinetobe
movedwhenengineisnotrunning.
17

Specications
Tires&Wheels
DriveFrontCaster
Pneumatic
(Air-Filled)
Semi-Pneumatic
DeckSize60,66,&72AllDecks
Quantity22
Tread“Multi-Trac
C/S”
Smooth
Size24x12.00-1213x6.50-6
PlyRating4
Pressure13psi(90kPa)
CuttingDeck
•CuttingWidth:
–60inch(152.4cm)
–66inch(167.6cm)
–72inch(182.9cm)
•Discharge:Side
•BladeSize:(3ea.)
–60inchDeck:20.75inches(52.7cm)
–66inchDeck:22.75inches(57.8cm)
–72inchDeck:24.75inches(62.9cm)
•BladeSpindles:Solidsteelspindleswith1.18inch
(30mm)I.D.bearings.
•DeckDrive:
–Electricclutchmountedonhorizontalengine
shaft.“B”Sectionbelt(withself-tensioning
idler)fromelectricclutchtotransfershaft
mountedondeck.
–Bladesaredrivenbyone“B”Sectionbelt
(w/self-tensioningidler)fromtransfershaft
ondecktobladespindles.
•Deck:
Fulloatingdeckisattachedtoout-frontsupport
frame.Sixanti-scalprollersprovidemaximum
turfprotection.Deckdesignallowsforbagging,
mulchingorsidedischarge.
•DeckDepth:
–60inchDeck:6.0inches(15.2cm)
–66inchDeck:6.0inches(15.2cm)
–72inchDeck:6.0inches(15.2cm)
•CuttingHeightAdjustment:
Anextra-longcushionedleverisusedtoadjust
thecuttingheightfrom1inch(2.5cm)to5inches
(12.7cm)in1/4inch(6.4mm)increments.The
cuttingheightadjustmenthandlehasatransport
positionandalladjustmentscanbemadewhile
theoperatorremainsseated.Unitsalsohavea
footoperateddeckliftassistlevertoaidinraising
thedeck.
•MulchingKit:Optional.
Dimensions
OverallWidth:
60inch
Deck
66inch
Deck
72inch
Deck
Without
Deck
53.5inches
(135.9cm)
57.3inches
(145.5cm)
61.5inches
(156.2cm)
Deector
Up
61.4inches
(156.0cm)
68.0inches
(172.7cm)
74.3inches
(188.7cm)
Deector
Down
72.8inches
(184.9cm)
79.4inches
(201.7cm)
85.8inches
(217.9cm)
OverallLength:
60inch
Deck
66inch
Deck
72inch
Deck
RollBar-
Up
81.9inches
(208.0cm)
83.7inches
(212.6cm)
85.8inches
(212.6cm)
RollBar-
Down
92.6inches
(235.2cm)
94.4inches
(239.8cm)
96.4inches
(244.9cm)
OverallHeight:
RollBar-UpRollBar-Down
71.9in.(182.6cm)53.8inches(136.7cm)
TreadWidth:(CentertoCenterof
Tires,Widthwise)
60inch
Deck
66inch
Deck
72inch
Deck
Drive
Wheels
41.9inches
(106.4cm)
45.9inches
(116.6cm)
45.9inches
(116.6cm)
Caster
Wheels
37.3inches
(94.7cm)
42.3inches
(107.4cm)
47.3inches
(120.1cm)
18

Specications
WheelBase:(CenterofCasterTireto
CenterofDriveTire)
60inchDeck66inchDeck72inchDeck
53.7inches
(136.4cm)
55.3inches
(138.4cm)
59.1inches
(154.7cm)
CurbWeight:
60inch
Deck
66inch
Deck
72inch
Deck
27HP
Kohler
&28HP
Kawasaki
Units
1360lb
(617kg)
28HP
KohlerEFI
Units
1380lb
(626kg)
31HP
Briggs&
Stratton
Units
1395lb
(633kg)
1445lb
(655kg)
1495lb
(678kg)
TorqueRequirements
BoltLocationTorque
BladeDriveSheave
MountingNut
90-110ft-lb(122-149N-m)
CutterHousingSpindle
Nut
160-185ft-lb
(217-251N-m)
BladeMountingBolt
(lubricatewithanti-seize)
55-60ft-lb(75-81N-m)
EngineDeck/FrontFrame
MountBolts
30-35ft-lb(41-47N-m)
Anti-ScalpRollerNyloc
NutSeeFigure10
30-35ft-lb(41-47N-m)
Anti-ScalpRollerHex
CapscrewSeeFigure10
50-55ft-lb(68-75N-m)
EngineMountingBolts
(Briggs)
15-20ft-lb(20-27N-m)
EngineMountingBolts
(Kohler&Kawasaki)
30-35ft-lb(41-47N-m)
WheelLugNuts90-95ft-lb(122-129N-m)
WheelMotorMounting
Bolts
72-77ft-lb(98-104N-m)
BoltLocationTorque
WheelHubSlottedNutminimum125ft-lb
(169N-m)
RolloverProtectionSystem
(RollBar)MountingBolts
30-35ft-lb(41-47N-m)
DeckDriveJackshaftNut75-80ft-lb(102-108N-m)
ClutchRetainingBolt
(securedwiththreadlocker)
55-60ft-lb(75-81N-m)
19

Operation
ProductOverview
Figure4
1.MotionControlLever5.Controls
2.ParkingBrakeLever6.SeatBelt
3.Height-of-CutLever7.RollBar
4.FuelCap(BothSides)
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Controls
MotionControlLevers
Themotioncontrolleverslocatedoneachsideofthe
consolecontroltheforwardandreversemotionof
themachine.Theleverscontroltheowofhydraulic
oilfromthehydrostaticpumptothedrivewheel
motorforeachside.
Movingtheleversforwardorbackwardturnsthe
wheelonthesamesideforwardorinreverse.Wheel
speedisproportionaltotheamounttheleveris
moved.
Movingtheleversoutwardfromthecenterposition
intotheT-slotlocksthemintheneutralposition
(Figure6).
ChokeControl(AllUnitsExcept
KohlerEFI)
Locatedonrightfueltank.
Thechokeisusedtoaidinstartingacoldengine.
Movingthechokeleverforwardwillputthechokein
the“ON”positionandmovingthechokelevertothe
rear,tothedetent,willputthechokeinthe“OFF”
position.DoNotrunawarmenginewithchokein
the“ON”position.
ThrottleControl
Locatedonrightfueltank.
Thethrottleisusedtocontrolenginespeed.Moving
thethrottleleverforwardwillincreaseenginespeed
andmovingthethrottlelevertotherearwilldecrease
enginespeed.Movingthethrottleforwardintothe
detentisfullthrottle.
BrakeLever
Locatedonleftsideofunit,justtothefrontofthe
console.
Thebrakeleverengagesaparkingbrakeonthedrive
wheels.
Pulltheleverupandrearwardtoengagethebrake.
20