Exmark ULTRAVAC User manual

ULTRA V AC®
COLLECTION
SYSTEM
126-8680
ForUltraVacSerialNos.
411,294,212&Higher
(TofitLazerZDieselodels
402,082,300&Higher)
PartNo.4505-880Rev.A

WARNING
CALIFORNIA
Proposition65Warning
Useofthisproductmaycauseexposure
tochemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Exmarkreservestherighttomakechangesor
addimprovementstoitsproductsatanytime
withoutincurringanyobligationtomakesuch
changestoproductsmanufacturedpreviously.
Exmark,oritsdistributorsanddealers,accept
noresponsibilityforvariationswhichmaybe
evidentintheactualspecicationsofitsproducts
andthestatementsanddescriptionscontained
inthispublication.
©2021ExmarkMfg.Co.,Inc.
415IndustrialRow
Beatrice,NE683102
Contactusatwww.Exmark.com.
PrintedintheMexico
AllRightsReserved

Introduction
CONGRATULATIONSonthepurchaseofyour
ExmarkUltraVac.Thisproducthasbeencarefully
designedandmanufacturedtogiveyouamaximum
amountofdependabilityandyearsoftrouble-free
operation.
Thismanualcontainsoperating,maintenance,
adjustment,andsafetyinstructionsforyourExmark
UltraVac.
BEFOREOPERATINGYOURMOWER,
CAREFULLYREADTHISMANUALINITS
ENTIRETY.
Byfollowingtheoperating,maintenance,and
safetyinstructions,youwillprolongthelifeofyour
UltraVac,maintainitsmaximumefciency,and
promotesafeoperation.
Tomaximizesafety,performance,andproper
operationofthismachine,itisessentialthatall
operatorscarefullyreadandfullyunderstandthe
contentsoftheOperator’smanualprovidedwith
theproduct.Failuretocomplywiththeoperating
instructionsorreceivepropertrainingmayresult
ininjury.Gotohttps://www .Exmark.comfor
additionalsafeoperationinformation,suchassafety
tips,trainingmaterials,andOperator’smanuals.
Ifadditionalinformationisneeded,orshould
yourequiretrainedmechanicservice,contactyour
authorizedExmarkequipmentdealerordistributor.
AllExmarkequipmentdealersanddistributorsare
keptinformedofthelatestmethodsofservicing
andareequippedtoprovidepromptandefcient
serviceintheeldorattheirservicestations.They
carryamplestockofservicepartsorcansecurethem
promptlyforyoufromthefactory.
AllExmarkpartsarethoroughlytestedandinspected
beforeleavingthefactory,however,attentionis
requiredonyourpartifyouaretoobtainthefullest
measureofsatisfactionandperformance.
Wheneveryouneedservice,genuineExmarkparts,
oradditionalinformation,contactanAuthorized
ServiceDealerorExmarkCustomerServiceandhave
themodelandserialnumbersofyourproductready.
Figure1identifythelocationofthemodelandserial
numbersontheproduct.Writethenumbersinthe
spaceprovided.
g241694
Figure1
ModelNo.
SerialNo.
Forcompletewarrantydetails,see
https://www.Exmark.com.Youmayalsocall
us402-223-6375torequestawrittencopyofthe
product’swarranty.
3

Contents
Introduction...........................................................3
Safety.....................................................................5
SafetyAlertSymbol.........................................5
GeneralSafetyInformation.............................5
SafetyandInstructionalDecals.......................6
Specications.........................................................8
Systems...........................................................8
Dimensions.....................................................8
TorqueRequirements......................................8
ProductOverview..................................................8
Operation...............................................................9
BeforeOperation............................................9
OperatingInstructions....................................9
DuringOperationSafety..................................9
AfterOperation..............................................16
Maintenance..........................................................17
MaintenanceSafety.............................................17
RecommendedMaintenanceSchedule(s)............17
PeriodicMaintenance........................................18
CheckBlowerHousing/Impeller....................18
CheckBags.....................................................18
LubricateGreaseFittings................................18
CheckConditionofBelt.................................18
Cleaning............................................................19
CleaningandStoringSafety.............................19
CleanMuferandRearFrameArea.................19
CleanHoodScreenonMower........................19
CleanRearScreenInHoodAssembly.............19
CleanBlower..................................................19
Troubleshooting....................................................20
CaliforniaProposition65Warning
Information...............................................21
4

Safety
Safety
SafetyAlertSymbol
ThisSafetyAlertSymbol(Figure2)isusedbothin
thismanualandonthemachinetoidentifyimportant
safetymessageswhichmustbefollowedtoavoid
accidents.
Thissymbolmeans:ATTENTION!BECOME
ALERT!YOURSAFETYISINVOLVED!
g000502
Figure2
SafetyAlertSymbol
Thesafetyalertsymbolappearsaboveinformation
whichalertsyoutounsafeactionsorsituations
andwillbefollowedbythewordDANGER,
WARNING,orCAUTION.
DANGER:Indicatesanimminentlyhazardous
situationwhich,ifnotavoided,Willresultindeathor
seriousinjury.
WARNING:Indicatesapotentiallyhazardous
situationwhich,ifnotavoided,Couldresultindeath
orseriousinjury.
CAUTION:Indicatesapotentiallyhazardous
situationwhich,ifnotavoided,Mayresultinminor
ormoderateinjury.
Thismanualusestwootherwordstohighlight
information.Importantcallsattentiontospecial
mechanicalinformationandNoteemphasizes
generalinformationworthyofspecialattention.
GeneralSafetyInformation
Thismachineiscapableofamputatinghandsand
feetandofthrowingobjects.Alwaysfollowallsafety
instructionstoavoidseriouspersonalinjuryordeath.
•Read,understand,andfollowallinstructionsand
warningsinthemowerandUltraVacOperator’s
Manualsandonthemachine,engine,and
attachments.Alloperatorsandmechanicsshould
betrained.Iftheoperator(s)ormechanic(s)
cannotreadthismanual,itistheowner’s
responsibilitytoexplainthismaterialtothem;
otherlanguagesmaybeavailableonourwebsite.
•Onlyallowtrained,responsible,andphysically
capableoperatorsthatarefamiliarwiththesafe
operation,operatorcontrols,andsafetysignsand
instructionstooperatethemachine.Neverlet
childrenoruntrainedpeopleoperateorservice
theequipment.Localregulationsmayrestrictthe
ageoftheoperator.
•DoNotoperatethemachineneardrop-offs,
ditches,embankments,water,orotherhazards.
•Keepbystandersandchildrenoutoftheoperating
area.
•DoNotputyourhandsorfeetnearmovingparts.
•DoNotoperatethemachinewithoutallsafety
shields,guards,switches,andotherdevicesin
placeandinproperworkingcondition.
•Parkmachineonlevelground,disengagedrives,
setparkingbrake,stopengine,andremovekey.
Waitforallmovingpartstostopbeforeleaving
theoperator’sposition.Allowthemachinetocool
beforeservicing,adjusting,fueling,unclogging,
cleaning,orstoring.
5

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.
decal112-9028
112-9028
1.Warning—stayawayfrommovingparts;keepallguards
andshieldsinplace.
decal126-4659
126-4659
1.Warning-Hotpulley;allowtocool.
decal126-4662
126-4662
1.Warning-ReadtheOperator’smanualforcorrect
quantityofcounterbalanceweight(s).
2.Lossoftractionandsteeringorreducedstability
hazard-UltraVaccounterbalanceweight(s)installed
withoutUltraVacmaycauselossoftractionand
steeringcontrol.UltraVacinstalledwithoutUltraVac
counterbalanceweight(s)willcausereducedstability.
Installweight(s)onlywhenUltraVacisinstalled.
decal126-4853
126-4853
1.Impeller/RotatingBladeshazard-Keephandsaway
frommovingparts.Keepallsafetydevicesinplace
andworking.DoNotreachintoblowerunlessrotation
indicatorhasstopped.
6

Safety
decal133-8061
133-8061
decal126-4584
126-4584
1.Impeller/RotatingBladeshazard-Keephandsawayfrommovingparts.Keepallsafetydevicesinplaceandworking.Do
Notreachintoblowerunlessrotationindicatorhasstopped.DisengagePTO,stopengine,removekey,WAITFOR
MOVINGPARTSTOSTOP .
2.Rotationindicator
3.Thrownobjectshazard-Highspeeddischargecancauseinjuryordeath.DoNotrunblowerwithoutentirecollection
systeminstalledandlatched.ReadtheOperator’smanual.
7

ProductOverview
Specications
Systems
BaggingSystem
•Collectionbins:
–Commercialgrade,clothmeshbagswith
reinforcedbottoms.
–Capacity:13.4Bushels
•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
LazerZDieselw/60inch
Deck
74.9inches(190.2cm)
LazerZDieselw/72inch
Deck
87.0inches(221.0cm)
OverallLength:
w/UltraVac
LazerZDieselw/60inch
Deck
120.8inches(306.8cm)
LazerZDieselw/72inch
Deck
124.0inches(315.0cm)
CurbWeight:
UltraVacWeight(W/CompletingKit):430lb(195kg)
TorqueRequirements
BoltLocationTorque
ImpellerSpindleBottom
Nut
55-60ft-lb(75-81N-m)
ImpellerSpindleTopNut75-80ft-lb(102-108N-m)
ProductOverview
g241705
Figure3
1.HoodAssembly4.Tube
2.Casterweight5.Bag
3.Blower
8

Operation
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Important:Duetotheaddedweightofthe
UltraVac,itisimportanttoensuretheparking
brakeonyourmowerisadjustedproperly.Before
installingtheUltraVac,makesuretore-adjust
theparkingbrakeonyourmowerasoutlinedin
the“AdjustingtheParkingBrake”procedurein
theMaintenancesectionofthemowerOperator's
manual.
BeforeOperation
BeforeOperationSafety
•Evaluatetheterraintodeterminewhataccessories
andattachmentsareneededtoproperlyand
safelyperformthejob.Onlyuseaccessoriesand
attachmentsapprovedbyExmark.
•Inspecttheareawherethemachineistobeused
andremoveallrocks,toys,sticks,wires,bones,
andotherforeignobjects.Thesecanbethrown
orinterferewiththeoperationofthemachine
andmaycausepersonalinjurytotheoperatoror
bystanders.
•ThemachinethattheUltraVacattachestowas
designedforoneoperatoronly.DoNotcarry
passengers.
•Wearappropriatepersonalprotectiveequipment
suchassafetyglasses,longpants,substantial
slip-resistantfootwear,andhearingprotection.
Tiebacklonghairandavoidlooseclothingand
loosejewelrywhichmaygettangledinmoving
parts.
•Thismachineproducessoundlevelsinexcessof
85dBAattheoperator’searandcancausehearing
lossthroughextendedperiodsofexposure.Wear
hearingprotectionwhenoperatingthismachine.
•DoNotoperatethemowerwhenpeople,
especiallychildren,orpetsareinthearea.Shut
offthemachineandattachment(s)ifanyone
entersthearea.
•DoNotoperatethemachinewithouttheentire
grasscollectionsystem,dischargedeector,
orothersafetydevicesinplaceandinproper
workingcondition.Grasscatchercomponents
aresubjecttowear,damageanddeterioration,
whichcouldexposemovingpartsorallowobjects
tobethrown.Frequentlycheckforwornor
deterioratingcomponentsandreplacethemwith
themanufacturer’srecommendedpartswhen
necessary.
•Ensuretheblower,bags,tubesandhoodassembly
areingoodcondition,properlyattached,and
latched.
OperatingInstructions
DuringOperationSafety
GeneralSafety
Theoperatormustusetheirfullattentionwhen
operatingthemachine.DoNotengageinanyactivity
thatcausesdistractions;otherwise,injuryorproperty
damagemayoccur.
•Operatethemachineonlyingoodvisibilityand
appropriateweatherconditions.DoNotoperate
themachinewhenthereistheriskoflightning.
•Keepawayfromholes,ruts,bumps,rocks,and
otherhiddenhazards.Usecarewhenapproaching
blindcorners,shrubs,trees,tallgrassorother
objectsthatmayhideobstaclesorobscurevision.
Uneventerraincouldoverturnthemachine.
•DoNotoperatethemachinewithoutallsafety
shields,guards,switches,andotherdevicesin
placeandinproperworkingcondition.
•Keepyourhandsandfeetawayfromthemoving
parts.Keepclearofthedischargeopening.
DANGER
Therearerotatingbladesintheblowerand
underthemowerdeck.Bladecontactcan
causeseriousoperatororbystanderinjuryor
evendeath.
•DoNotreachintoblowerunlessrotation
indicatorhasstopped.DisengagePTO,
stopengine,removekey,waitforall
movingpartstostop.Engageparking
brake.
•Neveroperatemowerunlessdischarge
deector,entiregrasscollectionsystem,
ormulchkitisinstalled.
9

Operation
•DoNotmowwiththedischargedeector
raised,removed,oralteredunlessthereisa
grass-collectionsystemormulchkitinplaceand
workingproperly.
•Beawareofthemowerdischargepathanddirect
dischargeawayfromothers.Avoiddischarging
materialagainstawallorobstructionasthe
materialmayricochetbacktowardtheoperator.
Stoptheblades,slowdown,andusecaution
whencrossingsurfacesotherthangrassandwhen
transportingthemowertoandfromtheareato
bemowed.
WARNING
Hands,feet,hair,clothing,oraccessoriescan
becomeentangledinrotatingparts.Contact
withtherotatingpartscancausetraumatic
amputationorseverelacerations.
•DoNotoperatethemachinewithout
guards,shields,andsafetydevicesinplace
andworkingproperly.
•Keephands,feet,hair,jewelry,orclothing
awayfromrotatingparts.
•Bealert,slowdownandusecautionwhen
makingturns.DoNotmowinreverseunlessit
isabsolutelynecessary.Alwayslookdownand
behindyoubeforemovingthemachineinreverse.
•Parkthemachineonlevelground.Stopengine,
waitforallmovingpartstostop,andremovekey.
–Beforechecking,cleaningorworkingonthe
mower.
–Afterstrikingaforeignobjectorabnormal
vibrationoccurs(inspectthemowerfor
damageandmakerepairsbeforerestarting
andoperatingthemower).
–Beforeclearingblockages.
–Wheneveryouleavethemower.DoNotleave
arunningmachineunattended.
•Stopengine,waitforallmovingpartstostop:
–Beforerefueling.
–Beforedumpingthegrasscatcher.
–Beforemakingheightadjustments.
•Tragicaccidentscanoccuriftheoperatorisnot
alerttothepresenceofchildren.Childrenare
oftenattractedtothemachineandthemowing
activity.Neverassumethatchildrenwillremain
whereyoulastsawthem.
–Keepchildrenoutofthemowingareaand
underthewatchfulcareofanotherresponsible
adult,nottheoperator.
–Bealertandturnthemachineoffifchildren
enterthearea.
–Beforeandwhilebackingorchanging
direction,lookbehind,down,andside-to-side
forsmallchildren.
–Neverallowchildrentooperatethemachine.
–DoNotcarrychildren,evenwiththeblades
shutoff.Childrencouldfalloffandbe
seriouslyinjuredorinterferewiththesafe
operationofthemachine.Childrenthathave
beengivenridesinthepastcouldsuddenly
appearintheworkingareaforanotherrideand
berunoverorbackedoverbythemachine.
Mowing
1.TheUltraVacbloweroperateswhenthePTOis
engaged.Besurethatallpersonsareclearofthe
mowerdeckbeforeengagingthecuttingblades.
ToengagethePTO,pulltheswitchoutwardto
engagethecuttingbladesandblower.
2.DisengagethePTObypushinginonthePTO
switchtothe“STOP”positiontostopthecutting
bladesandblower.Thecuttingbladeswillrequire
aslightlylongeramountoftimetocometoa
completestopwhentheblowerisinstalledon
thedeck.Verifythatallrotationindicatorshave
stoppedbeforeclearingblowerassemblyor
mowerdeck.
3.Toremovethebags,rstdisengagethePTO,stop
theengineandwaitforallmovingpartstostop.
Openthehoodassemblyandremovethebagsby
liftingupontherearofthebag,thenunhooking
thefrontclip.Emptythebagsbyinvertingthem.
4.Reinstallbags,closeandlatchhoodassembly
beforecontinuingmowing.
Tipsformowingconditions:
•Whenmowinginareaswithsandysoil,use
lowliftbladesonthecuttingdeckandhigher
cuttingheightstominimizewearontheblower
components.
•Whenmowinginwetconditions,suchasjustafter
arainorinheavydew,uselowliftbladesonthe
cuttingdecktominimizepluggingoftheblower.
•Maintainingagroundspeedthatdoesnotpull
downtheengineRPMwillallowforthehighest
10

Operation
productivityandbestqualityofcut.Boggingthe
engineRPMdownbygoingtoofastwillcause
pluggingandqualityofcutissues.
•Whenthebagsgetfull,thesoundoftheblower
willchangeandtherewillbeslightblowoutfrom
thefrontrightcornerofthedeck.Emptyingthe
bagsatthispointwillminimizethepotentialfor
thetubetoplug.
CollectionSystemRemovalforSide
Discharge
1.DisengagethePTO,stopengineandwaitforall
movingpartstostop.Removekeyandengage
parkingbrake.
2.Emptythebags.
CAUTION
Thebagsareheavywhenfull,whichmay
makeitdifculttoremovethehoodassembly
fromthemachine.Theentirehoodassembly
mayfall,whichmaycauseinjury.
Priortoremovingthehoodassemblyfromthe
machine,rstemptythecontents.
3.Removethedischargetubebyreleasingthe
latchesattheblower.Slidethetubeofftheblower
outletandremovetheupperendfromthehood
assembly.
g242330
Figure4
1.Hoodassembly5.Beltcover
2.Clevispin6.Blower
3.Casterarmweight7.Tubes
4.Hairpin8.Bag
4.Removetheknobfromthebeltcoverbracketand
takeoffthebeltcover.
g007981
Figure5
1.Beltcoverbracket4.Belt
2.Beltcover5.Decksheave
3.Knob
CAUTION
Thedecksheavewillbecomeveryhot.
Touchingahotdecksheavecancausesevere
burns.
Allowthedecksheavetocoolcompletely
beforeremovingthebelt.
5.Pulltheidlerreleasehandleandremovethebelt
fromtheuppergrooveofthedecksheave.
6.Unlatchthefrontendoftheblower.Pivotthe
blowerbackandliftitoffthedeck.
g032035
Figure6
1.Blowerlatch
2.Pivotblowerawayfromdeck
11

Operation
7.Installthedischargedeectorusingthechute
pivotpinandhairpin(seeFigure7).
g009319
Figure7
1.Hairpin3.Dischargedeector
2.Chutepivotpin
WARNING
Anuncovereddischargeopeningwill
allowobjectstobethrowninoperator'sor
bystander'sdirection.Also,contactwith
bladecouldoccur.Thrownobjectsorblade
contactcancauseseriousinjuryordeath.
Neveroperatemowerunlessdischarge
deector,orentiregrasscollectionsystem,or
mulchkitisinstalled.
8.Re-installtheplasticbeltcoverandtightenthe
knobs.
9.Removethebagsfromthehoodassemblyby
openingthehoodandliftingupontherearofthe
bagandthenunhookingthefrontclip.
10.Removethehoodassembly.
11.Removethecasterweights.
A.Removethe3/8-16inchnylocnutfromthe
bottomofthe45lb(20.4kg)weightmounted
tothecasterarm.Removethe3/8-16x8inch
screwandwasher.
g242048
Figure8
1.3/8-16x61/2inchscrew6.Hairpin
2.Knob7.20lb(9.1kg)caster
weight
3.Bracket8.3/8-16inchnylocnut
4.45lb(20.4kg)caster
weight
9.Washer
5.Clevispin10.3/8-16x8inchscrew
B.Removethe3/8-16inchnylocnutfromthe
top20lb(9.1kg)casterweight.
C.Carefullyliftandremoveeachweightfrom
thecasterarms.
Note:Theremovableweightsareheavy.Use
carewhenliftingthem.Makesurethatyou
canholdthemsecurelybeforeliftingthem.
Usecautionwhenpositioningyourhands
sothatyouDoNotsetthemdownonyour
handsorngers.
12

Operation
D.Removebracketassemblyandallmounting
hardwarefromthecasterarm.
E.RepeatfortheRHside.
12.Removethecasterweightsbylooseningthe
clampingknobsuntiltheweightcanbemoved
relativetothecasterarm.Removethehairpins
andclevispinsthatholdtheweightstothecaster
arms.Carefullylifttheweightsoffofthecaster
arms.
Note:Theremovableweightsareheavy.Use
carewhenliftingthem.Makesurethatyoucan
holdthemsecurelybeforeliftingthem.Use
cautionwhenpositioningyourhandssothatyou
DoNotsetthemdownonyourhandsorngers.
Note:TheportionsoftheUltraVaccollection
systemthatarenotboltedtothemowerare
designedtobeinstalledorremovedintheir
entirety.DoNotoperatethemowerwithonlya
portionoftheUltraVacinstalled.
WARNING
Casterortoeboardweightsinstalledwithout
thecollectionsystemmaycauselossof
tractionandsteeringcontrol.Lossofcontrol
canresultinanaccidentwhichmaycause
death,injury,orpropertydamage.
InstallcasterortoeboardweightsONLY
whenthecollectionsystemisinstalled.
13.Themachinecannowbeusedforsidedischarge
mowing.
CollectionSystemInstallation
Important:Duetotheaddedweightofthe
UltraVac,itisimportanttoensuretheparking
brakeonyourmowerisadjustedproperly.Before
installingtheUltraVac,makesuretore-adjust
theparkingbrakeonyourmowerasoutlinedin
the“AdjustingtheParkingBrake”procedurein
theMaintenancesectionofthemowerOperator's
manual.
1.Stopengine,removekey,andwaitforallmoving
partstostop.Engageparkingbrake.
2.Removehairpinandchutepivotpin.Remove
dischargedeector.Pivotpinandhairpinmaybe
storedinthepivotholesofthedischargedeector
duringbaggingoperation.
3.Laythehoodassemblydownbehindthemachine.
Pickupthebaggerframelegsandhookthenotch
ontothelowerbaggermountbarasshownin
Figure9.
g242492
Figure9
1.Lowerbaggermountbar2.Frameleg
4.Liftthehoodassemblyandpivotitupward
towardsthebackofthemachine.Attachtherod
supporttoeachsideoftherearframeasshownin
Figure10.
13

Operation
g242046
Figure10
Rightsideshown
1.Rodsupportassembly4.Mountpinwithlanyard
2.Baggerpin5.1/2inchlocknut
3.Washer
5.Raisethehoodandinstallthebagassembliesby
insertingthehookportionintotheslotsinthe
baggersupportrods.
6.Removethebeltcoverontherightsideofthe
deck.
7.Mountthebloweronthedeckbyinsertingthe
mountingpinintothetubeweldedtotherear
cornerofthedeck(seeFigure11).Pivotthe
bloweruntilthefrontpinengagestheslotin
thedeck.Adjustthepositionofthefrontpin
ifnecessarytoengagetheslot.Usethelatches
tolocktheblowerinthisposition.Adjustthe
tensiononthelatchtoholdthebloweruptothe
deck,yetallowforreleasebyhand.
g242047
Figure11
1.Slot4.Mountingpin
2.Frontpin5.Decktube
3.Blowerlatch
8.Pullthespringloadedidlerbackandslipthebelt
intheuppergrooveofthedecksheave.
g009311
Figure12
ViewfromT opofBlower
1.Impellersheave3.Springloadedidler
2.Decksheave
9.Positionthebeltcoveratanangleandslideit
underthemowerframe(seeFigure13).
g242180
Figure13
1.Blower3.Mowerframe
2.Beltcover
10.Pushdownonthebackofthecoverandslideit
backwardsundertheblower.
11.Slidethebeltcoverforwarduntilitisseatedunder
bothlipsonthedeck.
14

Operation
g009341
Figure14
1.Blower3.Decklip
2.Beltcover
12.Installtheknobanditshardware.
13.Sliptheupperandthelowertubestogether.
14.Inserttheuppertubeintothehoodseal–pushin
thenpulloutsothatthesealisextendedoutward.
15.Alignthedimpleontheuppertubewiththeend
ofhoodsealandcenterbetweenthetwoscrews
asshowninFigure15.
g007027
Figure15
1.Dimple
16.Setthedeckinlowestcuttingposition.
17.Slidethelowertubeontothebloweroutletand
attachthelatches.(Makesurethattheuppertube
doesnotmoveoutofalignment).
18.Ifthelowertubeisreplaced,drillthree7/32inch
holesinthelowertubeusingtheuppertubeholes
asreference.SeeFigure16.
19.Removethetubesfromunitandassemblethe
upperandthelowertubesusingthree#10-24
x3/4inchhexwasherheadscrews,three#10
washers,andthree#10-24nylocnuts.Thescrew
headshouldbeinstalledtotheinsideofthe
tubetoprovideminimumobstructiontoow.
Makesurethattheupperandthelowerendsare
orientedproperlyasthetubesareassembled.
g007028
Figure16
1.Drilltheholeshere
20.Slidethelowerendofthetubeassemblyoverthe
bloweroutletandalignthenotchwiththetube
latch.Latchthetubetotheblower.
21.Installthecasterweights.
A.OntheLHside,insertthe3/8-16x61/2
inchscrewintoholeonthebottomsideofthe
bracketandtherearoftheremovable45lb
(20.4kg)casterweightasshowninFigure17.
Carefullyplacetheweightandbracket
assemblyontothecasterarmcenteringthe
holeoftheweightoverthecasterwheel.
15

Operation
g242048
Figure17
1.3/8-16x61/2inchscrew6.Hairpin
2.Knob7.20lb(9.1kg)caster
weight
3.Bracket8.3/8-16inchnylocnut
4.45lb(20.4kg)caster
weight
9.Washer
5.Clevispin10.3/8-16x8inchscrew
Important:Forcorrecttractionand
stability,installtherequiredquantityof
counterbalanceweight(s)asspeciedin
theUltraVacOperator’smanual,setup
instructions,and/orcompletingkit.
Note:Theremovableweightsareheavy.Use
carewhenliftingthem.makesurethatyou
canholdthemsecurelybeforeliftingthem.
Usecautionwhenpositioningyourhands
tothatyouDoNotsetthemdownonyour
handsorngers.
B.Securethebottomofthebrackettothecaster
armwithaclevispinandhairpin.
C.Tightentheknobonweightassemblyuntilit
isclampedsecurelytothecasterarm.
D.Installthree20lb(9.1kg)casterweightsover
theweightassemblyscrewandstackthem
securelyontothe45lb(20.4kg)casterweight.
Securetherearoftheweightassemblywitha
3/8-16inchnylocnut.
E.Install3/8-16x8inchscrewandwasher
throughthetopofthefrontholesofthe
weightassemblyandsecurewith3/8-16inch
nylocnut.
F.RepeatfortheRHside.
AfterOperation
GeneralSafety
•Parkmachineonlevelground,disengagedrives,
setparkingbrake,stopengine,andremovekey.
Waitforallmovingpartstostopbeforeleaving
theoperator’sposition.Allowthemachinetocool
beforeservicing,adjusting,fueling,unclogging,
cleaning,orstoring.
•Cleangrass,leaves,excessivegreaseoroil,and
otherdebrisfromthemowerdeck,mufer,drives,
grasscatcher,andengineareatohelpprevent
res.
16

Maintenance
Maintenance
MaintenanceSafety
•Parkmachineonlevelground,disengagedrives,
setparkingbrake,stopengine,andremovekey.
Waitforallmovingpartstostopbeforeleaving
theoperator’sposition.Allowthemachinetocool
beforeservicing,adjusting,fueling,unclogging,
cleaning,orstoring.
WARNING
Theenginecanbecomeveryhot.Touchinga
hotenginecancausesevereburns.
Allowtheenginetocoolcompletelybefore
serviceormakingrepairsaroundtheengine
area.
•Ifyouleavethekeyintheswitch,someonecould
accidentlystarttheengineandseriouslyinjureyou
orotherbystanders.Removethekeyfromthe
switchbeforeyouperformanymaintenance.
•Neverallowuntrainedpersonneltoservice
machine.
•Keepallguards,shields,switches,andallsafety
devicesinplaceandinproperworkingcondition.
Frequentlycheckforwornordeteriorating
componentsandreplacethemwithgenuine
Exmarkpartswhennecessary.
WARNING
Removalormodicationoforiginal
equipment,partsand/oraccessoriesmay
alterthewarranty,controllability,andsafety
ofthemachine.Unauthorizedmodications
totheoriginalequipmentorfailuretouse
originalExmarkpartscouldleadtoserious
injuryordeath.Unauthorizedchangestothe
machine,engine,fuelorventingsystem,may
violateapplicablesafetystandardssuchas:
ANSI,OSHAandNFPAand/orgovernment
regulationssuchasEPAandCARB.
•Keepyourhandsandfeetawayfrommoving
partsorhotsurfaces.Ifpossible,DoNotmake
adjustmentswiththeenginerunning.
WARNING
Contactwithmovingpartsorhotsurfaces
maycausepersonalinjury.
Keepyourngers,hands,andclothingclear
ofrotatingcomponentsandhotsurfaces.
•Keepallpartsingoodworkingconditionandall
hardwaretightened.
RecommendedMaintenanceSchedule(s)
MaintenanceService
IntervalMaintenanceProcedure
Beforeeachuseordaily
•Checktheblowerhousing/impeller.
•Checkbags.
•Cleanmuferandrearframearea.
•Cleanhoodscreenonmower.
•Cleanrearscreeninthehoodassembly.
Every25hours•Lubricategreasettings.
Every50hours•Checkconditionofbelt.
Yearlyorbeforestorage•Cleanblower.
17

Maintenance
PeriodicMaintenance
CheckBlower
Housing/Impeller
ServiceInterval:Beforeeachuseordaily
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Inspectforwearordamagedaily.Replaceor
repairwornpartsasneeded.
Note:Whenmowinginareaswithsandysoil,
uselowliftbladesonthecuttingdeckandhigher
cuttingheightstominimizewearontheblower
components.
CheckBags
ServiceInterval:Beforeeachuseordaily
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Inspectthebagsforwear,tears,ordamage.
WARNING
Undernormalusethebagwilldeteriorateand
wear.Objectscouldexitthroughwornbag
athighspeeds.Thrownobjectscancause
seriousinjuryorkillyouorbystanders.
Checkbagsfrequentlyfortearsandholes.
ReplacewornbagsonlywithExmark
replacementbags.
LubricateGreaseFittings
Note:Seechartforserviceintervals.
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.LubricatettingswithNLGIgrade#2
multi-purposegungrease.
Refertothefollowingchartforttinglocations
andlubricationschedule.
LubricationChart
Fitting
Locations
Initial
Pumps
Numberof
Places
Service
Interval
1.Idler
Bushings
1–2125Hours
CheckConditionofBelt
ServiceInterval:Every50hours
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Inspectthebeltfordamageorwear.Replacebelt
withoneofthefollowing:
DeckPartNo.
60inch103-0866
72inch103-0867
18

Maintenance
Cleaning
CleaningandStoringSafety
•Parkmachineonlevelground,disengagedrives,
setparkingbrake,stopengine,andremovekey.
Waitforallmovingpartstostopbeforeleaving
theoperator’sposition.Allowthemachinetocool
beforeservicing,adjusting,fueling,unclogging,
cleaning,orstoring.
•Cleangrassanddebrisfromthecuttingunit,
mufer,drives,grasscatcher,andengine
compartmenttopreventres.
•Allowthemachinetocoolbeforestoringthe
machineinanyenclosure.DoNotstorethe
machineorfuelcontainer,orrefuel,wherethere
isanopename,spark,orpilotlightsuchasona
waterheaterorotherappliance.
CleanMuferandRear
FrameArea
ServiceInterval:Beforeeachuseordaily
Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
WARNING
Operatingengineparts,especiallythemufer,
becomeextremelyhot.Severeburnscanoccur
oncontactanddebris,suchasleaves,grass,
brush,etc.cancatchre.
•Allowengineparts,especiallythemufer,to
coolbeforetouching.
•Removeaccumulateddebrisfrommuferand
enginearea.
CleanHoodScreenonMower
ServiceInterval:Beforeeachuseordaily
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Cleanoffanydebrisorgrassbuild-upfromthe
mowerhoodscreen.
CleanRearScreenInHood
Assembly
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.
19

Troubleshooting
Troubleshooting
Important:Itisessentialthatalloperatorsafetymechanismsbeconnectedandinproperoperating
conditionpriortomoweruse.
Whenaproblemoccurs,DoNotoverlookthesimplecauses.Forexample:startingproblemscouldbe
causedbyanemptyfueltank.
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.Emptybagsmorefrequently.
2.Pluggedscreeninhoodassembly.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.Emptybagsmorefrequently
2.Groundspeedistoofast.2.Drivesloweratfullthrottle.
3.Grassistoowet.3.Cutgrasswhenitisdry.
4.Grassistoolong.4.Cutgrassmorefrequentlyorathighercut
height.
5.Pluggedscreeninhoodassembly.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.Raisethedeckslightly.
1.Blowoutfromdeck.1.Checkforcloggedtubes.
Chasingleaves.
2.Bagsarefull.2.Emptybagsmorefrequently.
Blowercomponentsshowsignsofwear
and/oraircleanersandcoolingnsaredirty.
1.Sandordryconditions.1.Uselowliftbladesonthecutting
deckandhighercuttingheights.
Cleanaircleanersandcoolingns
frequently.
20