ULTRAV AC®
LAZERZ®HPMODELS
ForSerialNos.
850,000&Higher
PartNo.4500-599Rev.A
Exmarkreservestherighttomakechangesor
addimprovementstoitsproductsatanytime
withoutincurringanyobligationtomakesuch
changestoproductsmanufacturedpreviously.
Exmark,oritsdistributorsanddealers,accept
noresponsibilityforvariationswhichmaybe
evidentintheactualspecicationsofitsproducts
andthestatementsanddescriptionscontained
inthispublication.
©2009—ExmarkMfg.Co.,Inc.
IndustrialParkBox808
Beatrice,NE68310
2
Contactusatwww.Exmark.com.
PrintedintheUSA
AllRightsReserved
Introduction
CONGRATULATIONSonthepurchaseofyour
ExmarkUltraVac.Thisproducthasbeencarefully
designedandmanufacturedtogiveyouamaximum
amountofdependabilityandyearsoftrouble-free
operation.
Thismanualcontainsoperating,maintenance,
adjustment,andsafetyinstructionsforyourExmark
UltraVac.
BEFOREOPERATINGYOURMOWER,
CAREFULLYREADTHISMANUALINITS
ENTIRETY.
Byfollowingtheoperating,maintenance,andsafety
instructions,youwillprolongthelifeofyourUltra
Vac,maintainitsmaximumefciency,andpromote
safeoperation.
Ifadditionalinformationisneeded,orshouldyou
requiretrainedmechanicservice,contactyour
authorizedExmarkequipmentdealerordistributor.
Exmarkpartsmanualsareavailableonlineat
http://www.exmark.com/manuals.htm.
AllExmarkequipmentdealersanddistributorsare
keptinformedofthelatestmethodsofservicing
andareequippedtoprovidepromptandefcient
serviceintheeldorattheirservicestations.They
carryamplestockofservicepartsorcansecurethem
promptlyforyoufromthefactory.
AllExmarkpartsarethoroughlytestedandinspected
beforeleavingthefactory,however,attentionis
requiredonyourpartifyouaretoobtainthefullest
measureofsatisfactionandperformance.
Wheneveryouneedservice,genuineExmarkparts,
oradditionalinformation,contactanAuthorized
ServiceDealerorExmarkCustomerServiceandhave
themodelandserialnumbersofyourproductready.
Figure1identiesthelocationofthemodelandserial
numbersontheproduct.Writethenumbersinthe
spaceprovided.
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
3
Contents
Introduction...........................................................3
Safety.....................................................................5
SafetyAlertSymbol.........................................5
SafeOperatingPractices..................................5
SafetyandInstructionalDecals.......................8
Specications.........................................................9
ModelNumbers..............................................9
Systems...........................................................9
Dimensions.....................................................9
TorqueRequirements......................................9
ProductOverview................................................10
Operation.............................................................10
Pre-Start........................................................10
OperatingInstructions..................................10
Transporting.................................................13
Maintenance.........................................................15
RecommendedMaintenanceSchedule(s)...........15
PeriodicMaintenance.......................................15
CheckBlowerHousing/Impeller...................15
CheckConditionofBags...............................15
LubricateGreaseFittings...............................16
InspectBeltPositiononIdlerArm.................16
CheckConditionofBelt................................16
Cleaning...........................................................17
CleanMuferandRearFrameArea................17
CleanRearScreenInHood............................17
CleanBlower.................................................17
Troubleshooting...................................................18
4
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
•ReadthetractorandUltraVacOperator’sManuals
andothertrainingmaterial.Iftheoperator(s)or
mechanic(s)cannotreadEnglishitistheowner’s
responsibilitytoexplainthismaterialtothem.
•Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.
Theownerisresponsiblefortrainingtheusers.
•Neverletchildrenoruntrainedpeopleoperate
orservicetheequipment.Localregulationsmay
restricttheageoftheoperator.
•Onlyadultsandmatureteenagersshouldoperate
amower,andevenmatureteenagersshouldhave
adultsupervision.Besureateenager:
1.hasreadandunderstandstheOperator’s
Manualandrecognizestherisksinvolved;
2.issufcientlymaturetousecaution;and
3.isofsufcientsizeandweighttooperate
thecontrolscomfortablyandtomanagethe
mowerwithouttakingrisks.
•Theowner/usercanpreventandisresponsible
foraccidentsorinjuriesoccurringtohimselfor
herself,otherpeopleorproperty.
Preparation
•Evaluatetheterraintodeterminewhataccessories
andattachmentsareneededtoproperlyandsafely
performthejob.Onlyuseonmachinesapproved
byExmark.
•Wearappropriateclothingincludingsafetyglasses,
substantialfootwear,longtrousers,andhearing
protection.DoNotoperatewhenbarefootor
whenwearingopensandals.
CAUTION
Thismachineproducessoundlevelsin
excessof85dBAattheoperator’searand
cancausehearinglossthroughextended
periodsofexposure.
Wearhearingprotectionwhenoperatingthis
machine.
•Inspecttheareawheretheequipmentistobe
usedandremoveallrocks,toys,sticks,wires,
bones,andotherforeignobjectswhichcanbe
thrownbythemachineandmaycausepersonal
injurytotheoperatororbystanders.
Operation
•Operateonlyindaylightorgoodarticiallight,
keepingawayfromholesandhiddenhazards.
•Nevermowwiththedischargedeectorraised,
removedoralteredunlessthereisagrass
5
Safety
collectionsystemormulchkitinplaceand
workingproperly.
DANGER
Therearerotatingbladesintheblowerand
underthemowerdeck.Bladecontactcan
causeseriousoperatororbystanderinjury
orevendeath.
•DoNotreachintoblowerunlessrotation
indicatorhasstopped.DisengagePTO,
stopengine,removekey,waitforall
movingpartstostop.engageparking
brake.
•Neveroperatemowerunlessdischarge
deector,entiregrasscollectionsystem,
ormulchkitisinstalled.
•Stopengine,waitforallmovingpartstostop,
removekeyandengageparkingbrake:
–Beforechecking,cleaningorworkingonthe
mower.
–Afterstrikingaforeignobjectorabnormal
vibrationoccurs(inspectthemowerfor
damageandmakerepairsbeforerestarting
andoperatingthemower).
–Beforeclearingblockages.
–Wheneveryouleavethemower.
WARNING
Hands,feet,hair,clothing,oraccessoriescan
becomeentangledinrotatingparts.Contact
withtherotatingpartscancausetraumatic
amputationorseverelacerations.
•DoNotoperatethemachinewithout
guards,shields,andsafetydevicesin
placeandworkingproperly.
•Keephands,feet,hair,jewelry,orclothing
awayfromrotatingparts.
•Stoptheblades,slowdown,andusecautionwhen
crossingsurfacesotherthangrassandwhen
transportingthemowertoandfromtheareato
bemowed.
•Beawareofthemowerdischargepathanddirect
dischargeawayfromothers.
SlopeOperation
UseExtremecautionwhenmowingand/orturning
onslopesaslossoftractionand/ortip-overcould
occur.Theoperatorisresponsibleforsafeoperation
onslopes.
DANGER
Operatingonwetgrassorsteepslopescan
causeslidingandlossofcontrol.Wheels
droppingoveredges,ditches,steepbanks,or
watercancauserollovers,whichmayresult
inseriousinjury,deathordrowning.
•DoNotmowslopeswhengrassiswet.
•DoNotmowneardrop-offsornearwater.
•DoNotmowslopesgreaterthan15
degrees.
•Reducespeedanduseextremecaution
onslopes.
•Avoidsuddenturnsorrapidspeed
changes.
•Keeptherollbarintheraisedandlocked
positionanduseseatbelt.
•Seeinsidethebackcovertodeterminethe
approximateslopeangleoftheareatobemowed.
•Useawalkbehindmowerand/orahandtrimmer
neardrop-offs,ditches,steepbanksorwater.
(Figure3).
6
Safety
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.
•Avoidsuddenstartswhenmowinguphillbecause
themowermaytipbackwards.
•Beawarethatoperatingonwetgrass,acrosssteep
slopesordownhillmaycausethemowertolose
traction.Lossoftractiontothedrivewheelsmay
resultinslidingandalossofbrakingandsteering.
•Alwaysavoidsuddenstartingorstoppingona
slope.Iftireslosetraction,disengagetheblades
andproceedslowlyofftheslope.
•Followthemanufacturer’srecommendationsfor
wheelweightsorcounterweightstoimprove
stability.AlwaysinstallandremovetheUltraVac,
includingcounterweights,asinstructed.Failure
todosowillcauseareductioninstabilityor
traction.DoNotoperatethemowerwithonlya
portionoftheUltraVacinstalled.
•Useextremecarewithgrasscatchersor
attachments.Thesecanchangethestabilityofthe
machineandcauselossofcontrol.Thestability
andtractionofthemachinewillchangeasthe
UltraVachopperllswithgrassclippings.Use
progressivelygreatercareonslopesasthehopper
lls.
MaintenanceandStorage
•Disengagedrives,setparkingbrake,stopengine
andremovekeyordisconnectsparkplugwire.
Waitforallmovementtostopbeforeadjusting,
cleaningorrepairing.
•Usecarewhencheckingblades.Wraptheblade(s)
orweargloves,andusecautionwhenservicing
them.Onlyreplacedamagedblades.Never
straightenorweldthem.
•Keepallguards,shieldsandallsafetydevicesin
placeandinsafeworkingcondition.
•Checkallboltsfrequentlytomaintainproper
tightness.
•Frequentlycheckforwornordeteriorating
componentsthatcouldcreateahazard.
•Allreplacementpartsmustbethesameas
orequivalenttothepartssuppliedasoriginal
equipment.
7
Safety
SafetyandInstructionalDecals
•Keepallsafetysignslegible.Removeallgrease,
dirtanddebrisfromsafetysignsandinstructional
labels.
•Replaceallworn,damaged,ormissingsafety
signs.
•Whenreplacementcomponentsareinstalled,be
surethatcurrentsafetysignsareafxedtothe
replacedcomponents.
•Ifanattachmentoraccessoryhasbeeninstalled,
makesurecurrentsafetysignsarevisible.
•Newsafetysignsmaybeobtainedfrom
yourauthorizedExmarkequipmentdealeror
distributororfromExmarkMfg.Co.Inc.
•Safetysignsmaybeafxedbypeelingoffthe
backingtoexposetheadhesivesurface.Apply
onlytoaclean,drysurface.Smoothtoremove
anyairbubbles.
•Familiarizeyourselfwiththefollowingsafetysigns
andinstructionlabels.Theyarecriticaltothesafe
operationofyourExmarkcommercialmower.
1-653558
98-5954
103-6604
ForUnitswitha2PostROPSOnly
103-6605
ForUnitswitha2PostROPSOnly
103-3508
8
Specications
Specications
ModelNumbers
SerialNos:850,000andHigher
LHPUV4448;LHPUV4650;LHPUV5256
Systems
BaggingSystem
•CollectionBins:
–Commercialgrade,clothmeshbagswith
reinforcedbottoms.
–Capacity:8bushels(2bagsandhood)
•DumpMechanism:Manualliftoff
•BlowerTube:Fixed,abrasionresistantmolded
polyethylene.
•Impeller:5–bladed,1/4inch(6.4mm)thick
abrasionresistantsteel,withverticalaxis.
•Impellerbearings:1inch(2.5cm)sealed
non-greaseablebearings.
Dimensions
OverallWidth:
w/UltraVac
44inchDeck58.47inches(148.5cm)
46inchDeck60.67inches(154.1cm)
48inchDeck61.73inches(159.8cm)
50inchDeck64.66inches(164.2cm)
52inchDeck66.47inches(168.8cm)
56inchDeck70.85inches(180.0cm)
OverallLength:
w/UltraVac
44inchDeck91.76inches(233.1cm)
46inchDeck94.69inches(240.5cm)
48inchDeck91.76inches(233.1cm)
50inchDeck95.12inches(241.6cm)
52inchDeck93.00inches(236.2cm)
56inchDeck97.86inches(248.6cm)
CurbWeight:
156lb(71kg),includingthefrontweight.
TorqueRequirements
BoltLocation
Torque
ImpellerSpindleBottom
Nut
55-60ft-lb(75-81N-m)
ImpellerSpindleTopNut75-80ft-lb(102-108N-m)
9
Operation
ProductOverview
Figure4
1.Bag4.Blower
2.Hood5.Tube
3.Weight
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Pre-Start
Makesureyouunderstandthecontrols,their
locations,theirfunctions,andtheirsafety
requirements.
Ensuretheblower,beltcover,bags,tubeandhood
areingoodcondition,properlyattached,andlatched.
ForunitsaboveSerialNos.600,000withTriton
decks:Makesurethattheadjustabledoglegbafeis
closedtomatchtheintakeintotheUltraVacBlower.
WARNING
Iftheblowerintakeopeningisnotcorrectit
willallowobjectstobethrowninoperator’s
orbystander’sdirection.Also,contactwith
bladecouldoccur.Thrownobjectsorblade
contactcancauseseriousinjuryorkillyou
orbystanders.
Adjustdoglegbafetomatchintake
opening.
RefertotheMaintenancesectionandperformallthe
necessaryinspectionandmaintenancesteps.
OperatingInstructions
Mowing
1.TheUltraVacbloweroperateswhendeckdrive
isengaged.Besurethatallpersonsareclear
ofthemowerdeckbeforeengagingthecutting
blades.Setthethrottleto“midway”position.Pull
outwardonthePTOswitchtothe“ROTATE”
position.Acceleratetofullthrottletobegin
mowing.
2.Todisengagethedeckdriveandblower,setthe
throttleto“midway”position.Pushinonthe
PTOswitchtothe“STOP”positiontostopthe
cuttingbladesandblower.Thecuttingbladeswill
requireaslightlylongeramountoftimetocome
toacompletestopwhentheblowerisinstalled
onthedeck.
10
Operation
3.Toremovethebags,shutoffdeckdrive,stop
theengineandwaitforallmovingpartstostop.
Openthehoodandremovethebagsbyliftingup
ontherearofthebag,thenunhookingthefront
clip.Emptybagsbyinvertingthem.
4.Reinstallbags,closeandlatchthehoodbefore
continuingmowing.
Tipsformowingconditions:
•Whenmowinginareaswithsandysoil,use
lowliftbladesonthecuttingdeckandhigher
cuttingheightstominimizewearontheblower
components.
•Whenmowinginwetconditions,suchasjustafter
arainorinheavydew,uselowliftbladesonthe
cuttingdecktominimizepluggingoftheblower.
•Maintainingagroundspeedthatdoesnotpull
downtheengineRPMwillallowforthehighest
productivityandbestqualityofcut.Boggingthe
engineRPMdownbygoingtoofastwillcause
pluggingandqualityofcutissues.
•Whenthebagsgetfull,thesoundoftheblower
willchangeandtherewillbeslightblowoutfrom
thefrontrightcornerofthedeck.Emptyingthe
bagsatthispointwillminimizethepotentialfor
thetubetoplug.
•ForunitsbelowSN600,000:Anti-blowout
kitsareavailableforleafcollection.Theyhelp
toprevent“chasing”theleaves.Toreduce
“plowing”leaves,raisethedeckslightly.
•OnTriton:Raisefrontadjustablebafeto
reduceplowing.Loweringfrontadjustablebafe
mayprevent“chasing”.Matchdischargeopening
toUltraVacintakeforbestperformance.
BaggerRemovalforSideDischarge
1.Shutoffthedeckdrive,stopengineandwaitfor
allmovingpartstostop.Removekey.
2.Removethedischargetubebyreleasingthe
latchesattheblower.Slidethetubeofftheblower
outletandremovetheupperendfromthehood.
Figure5
1.Hood4.Hairpin
2.Blower
5.ClevisPin
3.Tube6.Bag
3.Removethebeltcoverbylooseningtheknobs
(seeFigure6).
Figure6
1.ChutePivotPin
5.Belt
2.Knob
6.BeltCover
3.DischargeChute7.DeckSheave
4.Hairpin
11
Operation
CAUTION
Thedecksheavewillbecomeveryhot.
Touchingahotdecksheavecancausesevere
burns.
Allowthedecksheavetocoolcompletely
beforeremovingthebelt.
4.Pulltheidlerreleasehandleandremovethebelt
fromtheuppergrooveofthedecksheave.
5.Unlatchthefrontendoftheblower.Pivotthe
blowerbackandliftitoffthedeck.
6.Installthedischargechuteusingthechutepivot
pinandhairpin(seeFigure7).
Figure7
Viewedfromtherightside
1.Hairpin
3.DischargeChute
2.ChutePivotPin
Note:Installchutewiththetabstotherearof
thedecktabsasshown.
WARNING
Anuncovereddischargeopeningwill
allowobjectstobethrowninoperator’sor
bystander’sdirection.Also,contactwith
bladecouldoccur.Thrownobjectsorblade
contactcancauseseriousinjuryorkillyou
orbystanders.
Neveroperatemowerunlessdischarge
deector,orentiregrasscollectionsystem,or
mulchkitisinstalled.
7.Re-installtheplasticbeltcoverandtightenthe
knobs.
8.Removethehairpinsandclevispinsholdingthe
hoodassemblytothemountweldment.
9.Liftthebagandhoodassemblyoffthemount.
10.Forunitswitha2postROPSinstalled:
Removethehairpinsandliftthefrontweightoff
ofthemountplates(seeFigure8).
Figure8
1.Weight2.Hairpin
Note:TheportionsoftheUltraVacbaggerthat
arenotboltedtothemoweraredesignedtobe
installedorremovedintheirentirety.DoNot
operatethemowerwithonlyaportionofthe
UltraVacinstalled.
11.Themachinecannowbeusedforsidedischarge
mowing.
BaggerInstallationforBagging
1.Stopengine,removekey,andwaitforallmoving
partstostop.
2.Removehairpinandchutepivotpin.Remove
dischargechute.Pivotpinandhairpinmaybe
storedinthepivotholesofthedischargechute
duringbaggingoperation.
3.Slidetubeendsofhoodassemblyintothetubes
ofthemountweldment.Installtwoclevispins
throughholesintubes.Retainwithtwohairpins.
4.Hangthetwobagassembliesfromtheslotsinthe
baggerupright.Closeandlatchhood.
5.Removethebeltcoverontherightsideofthe
deck.Installtheblowerbyinsertingthemounting
pinintothetubeweldedtotherearcornerofthe
deck.Pivotthebloweruntilthefrontpinengages
theslotinthedeck.Adjustthepositionofthe
frontpinifnecessarytoengagetheslot.Usethe
latchestolocktheblowerinthisposition.
6.Pulltheidlerreleasehandleandinstallthebeltin
theuppergrooveofthedecksheave.
12
Operation
7.Installthebeltcoverusingthetwoknobs.Install
thedischargetubeassemblybyslippingtheupper
endintothehood,thenslidingthelowerendover
theblowerdischargeopening.Usethelatchesto
retainthelowerendtotheblower.
8.ForUnits600,000andHigherwithTriton
Decks:Adjustpositionofdoglegbafetomatch
theintakeoftheUltraVacblowerbafeadjusted
toowidemayallowobjectstobethrownfrom
underdeck.Bafeadjustedtoonarrowmaycause
pluggingissues.
Forunitswitha2postROPSinstalled:Install
theweight.
Note:TheportionsoftheUltraVacbaggerthat
arenotboltedtothemoweraredesignedtobe
installedorremovedintheirentirety.DoNot
operatethemowerwithonlyaportionofthe
UltraVacinstalled.
Transporting
TransportingaUnit
Useaheavy-dutytrailerortrucktotransportthe
machine.Lockbrakeandblockwheels.Securely
fastenthemachinetothetrailerortruckwithstraps,
chains,cable,orropes.Besurethatthetrailerortruck
hasallnecessarylightingandmarkingasrequiredby
law .Secureatrailerwithasafetychain.
CAUTION
Thisunitdoesnothaveproperturn
signals,lights,reectivemarkings,ora
slowmovingvehicleemblem.Drivingona
streetorroadwaywithoutsuchequipment
isdangerousandcanleadtoaccidents
causingpersonalinjury.Drivingonastreet
orroadwaywithoutsuchequipmentmayalso
beaviolationofStatelawsandtheoperator
maybesubjecttotrafcticketsand/ornes.
DoNotdriveaunitonapublicstreetor
roadway.
WARNING
Loadingaunitonatrailerortruckincreases
thepossibilityofbackwardtip-over.
Backwardtip-overcouldcauseseriousinjury
ordeath.
•Useextremecautionwhenoperatinga
unitonaramp.
•Useonlyasingle,fullwidthramp;Do
Notuseindividualrampsforeachside
oftheunit.
•Ifindividualrampsmustbeused,use
enoughrampstocreateanunbroken
rampsurfacewiderthantheunit.
•DoNotexceeda15°anglebetweenramp
andgroundorbetweenrampandtrailer
ortruck.
•Avoidsuddenaccelerationwhiledriving
unituparamptoavoidtippingbackward.
•Avoidsuddendecelerationwhilebacking
unitdownaramptoavoidtipping
backward.
LoadingaUnit
Emptygrassbagsbeforeattemptingtoload
unitontrailerortruck.Useextremecautionwhen
loadingunitsontrailersortrucks.Onefullwidth
rampthatiswideenoughtoextendbeyondtherear
tiresisrecommendedinsteadofindividualrampsfor
eachsideoftheunit.Thelowerrearsectionofthe
tractorframeextendsbackbetweentherearwheels
andservesasastopfortippingbackward.Having
afullwidthrampprovidesasurfacefortheframe
memberstocontactiftheunitstartstotipbackward.
Ifitisnotpossibletouseonefullwidthramp,use
enoughindividualrampstosimulateafullwidth
continuousramp.
Rampshouldbelongenoughsothattheangles
betweentherampandthegroundandtherampand
thetrailerortruckdonotexceed15°.Asteeperangle
maycausemowerdeckcomponentstogetcaughtas
theunitmovesfromramptotrailerortruck.Steeper
anglesmayalsocausetheunittotipbackward.If
loadingonornearaslope,positionthetraileror
trucksoitisonthedownsideoftheslopeandthe
rampextendsuptheslope.Thiswillminimizethe
13
Operation
rampangle.Thetrailerortruckshouldbeaslevel
aspossible.
Important:DoNotattempttoturntheunit
whileontheramp,youmaylosecontroland
driveofftheside.
Avoidsuddenaccelerationwhendrivinguparamp
andsuddendecelerationwhenbackingdownaramp.
Bothmaneuverscancausetheunittotipbackward.
14
Maintenance
Maintenance
Note:Determinetheleftandrightsidesofthemachinefromthenormaloperatingposition.
WARNING
Whilemaintenanceoradjustmentsarebeing
made,someonecouldstarttheengine.
Accidentalstartingoftheenginecould
seriouslyinjureyouorotherbystanders.
Removethekeyfromtheignitionswitch,
engageparkingbrake,andpullthewire(s)
offthesparkplug(s)beforeyoudoany
maintenance.Alsopushthewire(s)aside
soitdoesnotaccidentallycontactthespark
plug(s).
WARNING
Theenginecanbecomeveryhot.Touching
ahotenginecancausesevereburns.
Allowtheenginetocoolcompletelybefore
serviceormakingrepairsaroundtheengine
area.
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Beforeeachuseordaily
•Checktheblowerhousing/impeller.
•Checkconditionofbags.
•Cleanmuferandrearframearea.
•Cleanrearscreeninthehood.
Every25hours
•Greaseidlerbushings.
Every50hours
•Inspectthebeltpositionontheidlerarm.
•Checkconditionofbelt.
Yearlyorbeforestorage
•Cleanblower.
PeriodicMaintenance
CheckBlower
Housing/Impeller
ServiceInterval:Beforeeachuseordaily
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Inspectforwearordamagedaily.Replaceor
repairwornpartsasneeded
Note:Whenmowinginareaswithsandysoil,
uselowliftbladesonthecuttingdeckandhigher
cuttingheightstominimizewearontheblower
components.
CheckConditionofBags
ServiceInterval:Beforeeachuseordaily
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Inspectthebagsforwear,tears,ordamage.
WARNING
Undernormalusethebagwilldeteriorate
andwear.Objectscouldexitawornbag
athighspeeds.Thrownobjectscancause
seriousinjuryorkillyouorbystanders.
Checkbagfrequentlyfortearsandholes.
Replacewornbag.
15
Maintenance
LubricateGreaseFittings
Note:Seechartforserviceintervals.
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.LubricatettingswithNGLIgrade#2
multi-purposegungrease.
Refertothefollowingchartforttinglocations
andlubricationschedule.
LubricationChart
Fitting
Locations
Initial
Pumps
Numberof
Places
Service
Interval
1.Idler
Bushings
1–21
25Hours
InspectBeltPositiononIdler
Arm
ServiceInterval:Every50hours
Theidlerarmmaybecomebentduringuseor
transport.Abentidlerarmcouldcausethebeltto
jumpoffoftheidlerandbedamaged.
1.Makesurethebeltcoverisinstalledandrunthe
blowerforonetotwominutes.
2.Shutoffthedeckdrive,stopengine,waitfor
allmovingpartstostop,andremovekey.
Engageparkingbrake.Removethebeltcoverand
checktomakesurethatthebeltisridingnearthe
centeroftheatidlerontheidlerarm.
3.Ifthebeltisnotridingnearthecenterofthe
idler,removetheblower,andbendtheidlerarm
slightly.
4.Reinstalltheblowerandbeltcoverandrepeat
steps1through3untilthebeltispositionednear
thecenteroftheidler.
CheckConditionofBelt
ServiceInterval:Every50hours
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Inspectthebeltfordamageorwear.Replacebelt
withoneofthefollowing:
Deck
PartNo.
44inch
1-653332
46inch
1-653438
48inch
1-653333
50inch
103-0866
52inch
1-653438
56inch
109-1242
3.Toreplacebelt,removethebeltguideonthe
blower.
4.Installthebelt(fromtheDriveKit)ontothe
BlowerAssemblyasshowninFigure9.
Figure9
ViewfromT opofBlower
1.SpringLoadedIdler4.BeltGuide
2.ImpellerSheave5.DeckSheave
3.FixedIdler
5.Reinstallthebeltguideremovedpreviously.
16
Maintenance
Cleaning
CleanMuferandRear
FrameArea
ServiceInterval:Beforeeachuseordaily
Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
WARNING
Operatingengineparts,especiallythe
mufer,becomeextremelyhot.Severeburns
canoccuroncontactanddebris,suchas
leaves,grass,brush,etc.cancatchre.
•Allowengineparts,especiallythemufer,
tocoolbeforetouching.
•Removeaccumulateddebrisfrommufer
andenginearea.
•Installandmaintaininworkingordera
sparkarresterbeforeusingequipment
onforest-covered,grass-covered,
brush-coveredunimprovedland.
CleanRearScreenInHood
ServiceInterval:Beforeeachuseordaily
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Openhoodandremoveclippingsthatarestuck
tothescreen.
CleanBlower
ServiceInterval:Yearlyorbeforestorage
Grassbuildupmaycauseproblemswiththeimpeller
whentheunitisputbackintooperation.
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Removegrassbuildupfromaroundtheimpeller
beforeplacingitinstorage.
17
Troubleshooting
Troubleshooting
Important:Itisessentialthatalloperatorsafetymechanismsbeconnectedandinproperoperating
conditionpriortomoweruse.
Whenaproblemoccurs,donotoverlookthesimplecauses.Forexample:startingproblemscouldbecaused
byanemptyfueltank.
Thefollowingtablelistssomeofthecommoncausesoftrouble.DoNotattempttoserviceorreplacemajor
itemsoranyitemsthatcallforspecialtimingoradjustmentprocedures(suchasvalves,governor,etc.).Have
thisworkdonebyyourEngineServiceDealer.
Note:WhendisconnectingelectricalconnectorsDoNotpullonthewirestoseparatetheconnectors.
ProblemPossibleCauseCorrectiveAction
1.Cuttingblade(s)is/arebentorunbalanced.
1.Installnewcuttingblade(s).
2.Blademountingboltisloose.2.Tightentheblademountingbolt.
3.Looseblowerpulleyorpulleyassembly.
3.Tightentheappropriatepulley.
Abnormalvibration.
4.Blowerimpellerbladesarebent.4.ContactanAuthorizedServiceDealer.
Blowerdrivebeltsnapsorbreaksfrequently.
1.Idlerarmisoutofalignment.1.Correctthealignmentoftheidlerarm.
1.Bagsarefull.1.Dumpmorefrequently.
2.Pluggedscreeninbaggerhood.2.Removedebris,leavesorgrassclippings
fromthescreen.
3.Groundspeedistoofast.
3.Drivesloweratfullthrottle.
4.Blowerbeltisworn,loose,orbroken.4.Installnewblowerbelt.
5.Pluggedtubeorblower.5.Locateandremovepluggeddebris.
Excessivegrassblowoutfromthedeck.
6.Conditionsaredry.6.Uselowerliftblade.
1.Bagsaretoofull.1.Dumpmorefrequently
2.Groundspeedistoofast.
2.Drivesloweratfullthrottle.
3.Grassistoowet.
3.Cutgrasswhenitisdry.
4.Grassistoolong.4.Cutgrassmorefrequentlyorathighercut
height.
5.Pluggedscreeninbaggerhood.5.Removedebris,leaves,orgrassclippings
fromthescreen.
6.Blowerdrivebeltisworn,loose,or
broken.
6.Installnewbelt.
Blowerandtubesplugtoofrequently.
7.Blowerisplugged.7.Uselowliftbladesinwetconditions.
1.Pluggedblower.1.Removedebris,leaves,orgrassclippings
fromtheblowerimpeller.
Blowerimpellerdoesnotspinfreely.
2.Impellernotaligned.2.ContactanAuthorizedServiceDealer.
Plowingleaves.
1.Deckistoolow.
1.
LHPbelowS/N600,000:
Raisethedeckslightly.
Triton:Raisethefrontadjustable
bafe.
Chasingleaves.
1.Blowoutfromdeck.
1.
LHPbelowS/N600,000:Install
ananti-blowoutkit–contact
anAuthorizedServiceDealer.
Triton:Lowerthefrontadjustable
bafe.MatchdischargeopeningtoUltra
Vacintake.
Blowercomponentsshowsignsofwear
and/oraircleanersandcoolingnsaredirty.
1.Sandordryconditions.1.Uselowliftbladesonthecutting
deckandhighercuttingheights.
Cleanaircleanersandcoolingns
frequently.
18
Conditions and Products Covered
Exmark Mfg. Co. Inc. and its affiliate, Exmark Warranty
Company, pursuant to an agreement between them, jointly
warrant on the terms and conditions herein, that we will repair,
replace or adjust any part on these products and found by us
(in the exercise of our reasonable discretion) to be defective in
factory materials or workmanship for a period of one year.
This warranty applies to Exmark commercial attachments and
accessories sold in the U.S. or Canada. This warranty may
only be assigned or transferred to a second (or third) owner by
an authorized Exmark dealer. The warranty period commences
upon the date of the original retail purchase.
Warranty Exceptions Warranty Period
• Bags, Belts and Tires 90 days
This warranty only includes the cost of parts and labor.
Items and Conditions Not Covered
This warranty does not cover the following:
• Pickup and delivery charges to and from any authorized
Exmark Service Dealer.
• Any damage or deterioration due to normal use, wear and
tear, or exposure.
• Cost of regular maintenance service or parts, such as filters,
fuel, lubricants, tune-up parts, and adjustments.
• Any product or part which has been altered or misused or
required replacement or repair due to normal wear,
accidents, or lack of proper maintenance.
• Any repairs necessary due to use of parts, accessories or
supplies, including gasoline, oil or lubricants, incompatible
with the attachment or accessory or other than as
recommended in the operator's manual or other operational
instructions provided by Exmark.
All warranty work must be performed by an authorized
Exmark Service Dealer using Exmark approved replacement
parts.
Instructions for Obtaining Warranty Service
The product must be registered with original proof of purchase
by an Exmark Service Dealer before obtaining any warranty
service.
Contact any Exmark Service Dealer to arrange service at their
dealership. To locate a dealer convenient to you, access our
website at www.exmark.com. U.S. or Canada customers may
also call 402-223-6375.
If for any reason you are dissatisfied with the Service Dealer’s
analysis or with the assistance provided, contact us at:
Exmark Customer Service Department
The Exmark Warranty Company
2101 Ashland Avenue
Beatrice, NE 68310
402-223-6375 or
Owner’s Responsibilities
If your product requires warranty service it must be returned
to an authorized Exmark service dealer within the warranty
period. This warranty extends only to commercial attachments
and accessories operated under normal conditions. You must
read the operator’s manual. You must also properly service
and maintain your Exmark product as described in the
operator’s manual or other operational instructions provided
by Exmark. Such routine maintenance, whether performed by
a dealer or by you, is at your expense.
General Conditions
The sole liability of Exmark and Exmark Warranty Company
with respect to this warranty shall be repair or replacement of
defective components as set forth herein. Neither Exmark
nor Exmark Warranty Company shall be liable for any
incidental or consequential loss or damage.
Such damages include but are not limited to:
• Expenses related to gasoline, oil or lubricants.
• Travel time, overtime, after hours time or other
extraordinary repair charges or charges relating to repairs or
replacements outside of normal business hours at the place
of business of the authorized Exmark Service Dealer.
• Rental of like or similar replacement equipment during the
period of any warranty, repair or replacement work.
• Any telephone or telegram charges or travel charges.
• Loss or damage to person or property other than that
covered by the terms of this warranty.
• Any claims for lost revenue, lost profit or additional cost as
a result of a claim of breach of warranty.
• Attorney's fees.
No Claim of breach of warranty shall be cause for cancellation
or rescission of the contract of sale of any Exmark attachment
or accessory.
All implied warranties of merchantability (that the
product is fit for ordinary use) and fitness for use (that the
product is fit for a particular purpose) are limited to the
duration of the express warranty.
Some states do not allow exclusions of incidental or
consequential damages, or limitations on how long an
implied warranty lasts, so the above exclusions and
limitations may not apply to you.
This warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.
Exmark Commercial
Attachments and Accessories
1 Year Limited Warranty
G4500-433_B
19
Notes:
20
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