Exmark Ultra Vac QDS Frontrunner FRCK724 User manual

Brand: Exmark

Model: Ultra Vac QDS Frontrunner FRCK724

Type: User manual

This manual is also suitable for

ULTRAV AC®QDS

FRONTRUNNERTMMODELS

ForUltraVacSerialNos.

720,000&Higher

PartNo.4500-274Rev.A

Exmarkreservestherighttomakechangesor

addimprovementstoitsproductsatanytime

withoutincurringanyobligationtomakesuch

changestoproductsmanufacturedpreviously.

Exmark,oritsdistributorsanddealers,accept

noresponsibilityforvariationswhichmaybe

evidentintheactualspecicationsofitsproducts

andthestatementsanddescriptionscontained

inthispublication.

IndustrialParkBox808

Beatrice,NE68310

Contactusatwww.Exmark.com.

PrintedintheUSA.

AllRightsReserved

Introduction

CONGRATULATIONSonthepurchaseofyour

ExmarkUltraVacQDS.Thisproducthasbeen

carefullydesignedandmanufacturedtogiveyou

amaximumamountofdependabilityandyearsof

trouble-freeoperation.

Thismanualcontainsoperating,maintenance,

adjustment,andsafetyinstructionsforyourExmark

UltraVacQDS.

BEFOREOPERATINGYOURMOWER,

CAREFULLYREADTHISMANUALINITS

ENTIRETY.

Byfollowingtheoperating,maintenance,andsafety

instructions,youwillprolongthelifeofyourUltra

VacQDS,maintainitsmaximumefciency,and

promotesafeoperation.

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.

Contents

Introduction...........................................................3

Safety.....................................................................5

SafetyAlertSymbol.........................................5

SafeOperatingPractices..................................5

SafetyandInstructionalDecals.......................8

Specications.......................................................10

ModelNumbers............................................10

Systems.........................................................10

Dimensions...................................................10

TorqueRequirements....................................10

ProductOverview................................................11

Operation.............................................................11

Pre-Start........................................................11

OperatingInstructions..................................11

Transporting.................................................14

Maintenance.........................................................16

RecommendedMaintenanceSchedule(s)...........16

PeriodicMaintenance.......................................16

CheckBlowerHousing/Impeller...................16

LubricateGreaseFittings...............................16

CheckConditionofBelt................................17

Adjustments.....................................................18

Cleaning...........................................................19

CleanMuferandRearFrameArea................19

CleanRearScreenInHopper.........................19

CleanBlower.................................................19

Troubleshooting...................................................20

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

•ReadthetractorandUltraVacQDSOperator’s

Manualsandothertrainingmaterial.Ifthe

operator(s)ormechanic(s)cannotreadEnglish

itistheowner’sresponsibilitytoexplainthis

materialtothem.

•Becomefamiliarwiththesafeoperationofthe

equipment,operatorcontrols,andsafetysigns.

•Alloperatorsandmechanicsshouldbetrained.

Theownerisresponsiblefortrainingtheusers.

•Neverletchildrenoruntrainedpeopleoperate

orservicetheequipment.Localregulationsmay

restricttheageoftheoperator.

•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

•Operateonlyindaylightorgoodarticiallight,

keepingawayfromholesandhiddenhazards.

•Nevermowwiththedischargedeectorraised,

removedoralteredunlessthereisagrass

collectionsystemormulchkitinplaceand

workingproperly.

Safety

DANGER

Therearerotatingbladesintheblowerand

underthemowerdeck.Bladecontactcan

causeseriousoperatororbystanderinjury

orevendeath.

•DoNotreachintoblowerunlessrotation

indicatorhasstopped.DisengagePTO,

stopengine,removekey,waitforall

movingpartstostop.engageparking

brake.

•Neveroperatemowerunlessdischarge

deector,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

WARNING

Usingasingletailwheelmaycontactthe

collectionsystemandcausedifcultsteering

andreducethemachinestability.Thesingle

tailwheeltiremaycontactthebottomofthe

collectionsystemcausingdifcultsteering.

Asingletailwheelwithacollectionsystem

islessstableandapotentialtip-overcould

causeseriousinjuryordeath.

Operatemachineonlywithadualtailwheel

installed.

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.

•Seeinsidethebackcovertodeterminethe

approximateslopeangleoftheareatobemowed.

•Useawalkbehindmowerand/orahandtrimmer

neardrop-offs,ditches,steepbanksorwater.

(Figure3).

Safety

Figure3

1.SafeZone-Usethemowerhereonslopeslessthan15

degrees

2.DangerZone-Useawalkbehindmowerand/orhand

trimmerneardrop-offsandwater.

3.Water

•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.AlwaysinstallandremovetheUltraVac

QDS,includingcounterweights,asinstructed.

Failuretodosowillcauseareductioninstability

ortraction.DoNotoperatethemowerwithonly

aportionoftheUltraVacQDSinstalled.

•Useextremecarewithgrasscatchersor

attachments.Thesecanchangethestabilityofthe

machineandcauselossofcontrol.Thestability

andtractionofthemachinewillchangeasthe

UltraVacQDShopperllswithgrassclippings.

Useprogressivelygreatercareonslopesasthe

hopperlls.

MaintenanceandStorage

•Disengagedrives,setparkingbrake,stopengine

andremovekeyordisconnectsparkplugwire.

Waitforallmovementtostopbeforeadjusting,

cleaningorrepairing.

•Usecarewhencheckingblades.Wraptheblade(s)

orweargloves,andusecautionwhenservicing

them.Onlyreplaceblades.Neverstraightenor

weldthem.

•Keepallguards,shieldsandallsafetydevicesin

placeandinsafeworkingcondition.

•Checkallboltsfrequentlytomaintainproper

tightness.

•Frequentlycheckforwornordeteriorating

componentsthatcouldcreateahazard.

•Allreplacementpartsmustbethesameas

orequivalenttothepartssuppliedasoriginal

equipment.

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.

1-653558

98-5954

103-2076

103-8444

109-5606

Safety

109-5890

Specications

ModelNumbers

SerialNos:720,000andHigher

FRUVD–FitsFrontRunnerwith52,60,or72inchdecks

FRCK524–Completingkitfor52inchdeck

FRCK604–Completingkitfor60inchdeck

FRCK724–Completingkitfor72inchdeck

Note:DualtailwheelsareREQUIREDformaximumstability,clearance,andcapacity.

FRDTWK–Completekittoinstalldualtailwheels

FRDTWA–Partialkittoinstalldualtailwheels,re-usessomecomponentsfromsingletailwheel.

Systems

BaggingSystem

•CollectionHopper:

–Commercialgraderotationallymoldedplastic.

–Capacity:12.0bushels

•DumpMechanism:Manualdumpfromseat

•BlowerTube:Flexible,abrasionresistantEPDM

rubberwithpolypropylenehelix.

•Impeller:5–bladed,1/4inch(6.4mm)thick

abrasionresistantsteel,withverticalaxis.

•Impellerbearings:1inch(2.5cm)sealed

non-greaseablebearings.

Dimensions

OverallWidth:

w/UltraVacQDS

52inchDeck66.85inches(169.8cm)

60inchDeck74.44inches(189.1cm)

72inchDeck87.10inches(221.2cm)

OverallLength:

w/UltraVacQDS

52inchDeck118.21inches(300.3cm)

60inchDeck118.32inches(300.5cm)

72inchDeck121.2inches(307.8cm)

CurbWeight:

52inchDeck

264lb(119kg)

60inchDeck

265lb(120kg)

72inchDeck

265lb(120kg)

TorqueRequirements

BoltLocation

Torque

ImpellerSpindleBottom

Nut

32-40ft-lb(43-54N-m)

ImpellerSpindleTopNut75-80ft-lb(102-108N-m)

Operation

ProductOverview

Figure4

1.Blower3.Hopperassembly

2.Flexibletube4.Doorhandle

Operation

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

Pre-Start

Makesureyouunderstandthecontrols,their

locations,theirfunctions,andtheirsafety

requirements.

Ensuretheblower,beltcover,exibletube,hopper,

anddoorareingoodcondition,properlyattached,

andlatched.

RefertotheMaintenancesectionandperformallthe

necessaryinspectionandmaintenancesteps.

OperatingInstructions

Mowing

1.TheUltraVacQDSbloweroperateswhendeck

driveisengaged.Besurethatallpersonsareclear

ofthemowerdeckbeforeengagingthecutting

blades.Setthethrottleto“midway”position.Pull

outwardonthePTOswitchtothe“ROTATE”

position.Acceleratetofullthrottletobegin

mowing.

2.TodisengagethePTOandblower,setthe

throttleto“midway”position.Pushinonthe

PTOswitchtothe“STOP”positiontostopthe

cuttingbladesandblower.Thecuttingbladeswill

requireaslightlylongeramountoftimetocome

toacompletestopwhentheblowerisinstalled

onthedeck.Verifythatallrotationindicators

havestoppedbeforeclearingblowerassemblyor

mowerdeck

3.Toemptythehopper,rstshutoffdeckdrive.

Liftuponthehandletoopenthedoorandempty

thehopper.Iftheunitistobedrivenontoatruck

ortrailerwiththehopperfull,alwaysbackthe

unituptheramp.Thiswillreducethechanceof

rearwardtipup.SeetheTransportingsection

foradditionalinformationregardingloadinga

unitonatruckortrailer.

4.Closeandlatchthedoorbeforecontinuing

mowing.DoNotengagethecuttingbladeswhile

thedoorisintheopenposition.

Tipsformowingconditions:

Operation

•Whenmowinginareaswithsandysoil,use

lowliftbladesonthecuttingdeckandhigher

cuttingheightstominimizewearontheblower

components.

•Whenmowinginwetconditions,suchasjustafter

arainorinheavydew,uselowliftbladesonthe

cuttingdecktominimizepluggingoftheblower.

•Maintainingagroundspeedthatdoesnotpull

downtheengineRPMwillallowforthehighest

productivityandbestqualityofcut.Boggingthe

engineRPMdownbygoingtoofastwillcause

pluggingandqualityofcutissues.

•Whenthehoppergetfull,thesoundoftheblower

willchangeandtherewillbeslightblowoutfrom

thefrontrightcornerofthedeck.Emptyingthe

hopperatthispointwillminimizethepotential

forthetubetoplug.

BaggerRemovalforSideDischarge

1.Shutoffthedeckdrive,stopengineandwaitfor

allmovingpartstostop.Removekey.

2.Removethedischargetubebyreleasingthelock

pinattheblower.Rotateandpullthetubeaway

fromthebloweroutletadapter(seeFigure5).

Figure5

1.Hopperassembly6.Dischargechutepinand

hairpin

2.Lowerhopperlinks7.Belt

3.Alarm8.Blower

4.Decksheave9.Flexibletube

5.Beltcover

3.Removethebeltcoverbylooseningtherearknob

andremovingthefrontknob.Therearknobdoes

notneedtoberemovedcompletelytoremove

thebeltcover.

CAUTION

Thedecksheavewillbecomeveryhot.

Touchingahotdecksheavecancausesevere

burns.

Allowthedecksheavetocoolcompletely

beforeremovingthebelt.

4.Pulltheidlerreleasehandleandremovethebelt

fromtheuppergrooveofthedecksheave.

5.Unlatchthefrontendoftheblower.Pivotthe

blowerbackandliftitoffthedeck.

6.Installthedischargechuteusingthechutepivot

pinandhairpin(seeFigure6).

Figure6

Viewedfromtherightside

1.Hairpin

3.DischargeChute

2.ChutePivotPin

Note:Installchutewiththetabstotherearof

thedecktabsasshown.

WARNING

Anuncovereddischargeopeningwill

allowobjectstobethrowninoperator’sor

bystander’sdirection.Also,contactwith

bladecouldoccur.Thrownobjectsorblade

contactcancauseseriousinjuryorkillyou

orbystanders.

Neveroperatemowerunlessdischarge

deector,orentiregrasscollectionsystem,or

mulchkitisinstalled.

Operation

7.Re-installtheplasticbeltcoverandtightenthe

knobs.

8.Unplugthewiringforthellsensoratthefront

ofthehopper.Secureloosewireharnessby

routinglooseendpartiallybackdownROPStube.

9.Removethehairpinsandclevispinsholdingthe

hopperassemblytotheROPSweldment.

10.Rotatethehopperassemblyrearwarduntilthe

backofthedoorrestsontheground.Remove

thehairpinsholdingthelowerhopperlinksto

thelowerframemount(Figure7).

11.Thebracketboltedtotherearoftheframeatthe

ROPSremainsontheunit

Note:TheportionsoftheFrontRunnerUltra

Vacthatarenotboltedtothemoweraredesigned

tobeinstalledorremovedintheirentirety.Failure

todosowillcauseareductioninstabilityor

traction.DoNotoperatethemowerwithonlya

portionoftheFrontRunnerUltraVacinstalled.

12.Themachinecannowbeusedforsidedischarge

mowing.

BaggerInstallationforBagging

1.Stopengine,removekey,andwaitforallmoving

partstostop.

2.Removehairpinandchutepivotpin.Remove

dischargechute.Pivotpinandhairpinmaybe

storedinthepivotholesofthedischargechute

duringbaggingoperation.

3.Laythehopperassemblyonthedoorasshownin

(seeFigure7).

Figure7

1.Secureinthislocation

3.Hopperassembly

2.Lowerlinks

4.Installthehopperassemblyontothemountby

rotatingthelowerhopperlinksforwardand

slippingthemoverthepinsofthelowermount

weldment.Securethelowerlinkstothemount

usingthehairpins.

5.Liftandrotatethehopperassemblyupandalign

theupperpinholeswiththeholesintheROPS

mount.InstalltheupperpinsthroughtheROPS

platesandhopperframetubes.Securetheupper

pinswiththeattachedhairpins.

Figure8

1.Rotatehopperassembly2.Hopperassembly

6.Mountthebloweronthedeckbyslidingthe

mountingpinintothetubeattherearrightcorner

ofthedeck.Swingtheblowerclosed.Adjustthe

positionofthefrontpintoengagetheslotinthe

frontofthedeck.Usethelatchtolocktheblower

inthisposition.Adjustthetensiononthelatch

toholdthebloweruptothedeck,yetallowfor

releasebyhand.

7.Removetheplasticbeltcover.Pullthespring

loadedidlerbackandslipthebeltoverthetop

spindledecksheave.

8.Installtheplasticbeltcover.Therearofthecover

isslottedandcanslipbehindtheplasticknobon

thebeltshieldstud.Theplasticknobdoesnot

needtoberemoved.Thefronthorizontalplastic

knobfortheplasticbeltcovermustbeinstalled

afterthecoverhasbeenpositioned.

Thefrontverticalplasticknobontheoriginal

steelbeltcovercanbeusedforplasticbeltcover.

9.Thehopperinlethasribstoengagethespiral

reinforcementoftheexibletube.Usingamarker

orpaintpen,marktheexibletubeapproximately

4inchesfromtheend.Inserttheendofthe

tubeintothehopperinlet,androtateclockwise

toengage.Rotateandthreadthetubeintothe

hopperinletuptothe4inchmark.Itmaybe

easierto“push”thetubeintotheinletratherthan

rotating(Figure9).

Operation

Figure9

1.Hopper3.Flexibletube

2.Rotateclockwiseto

engage

10.Slidethelowerendofthetubeassemblyontothe

bloweroutletadapterandrotatetolockinplace.

Installthelockpinthroughthetubeandblower

adapter.

Figure10

1.Lockpin2.Rotatetolock

Note:TheportionsoftheUltraVacthatarenot

boltedtothemoweraredesignedtobeinstalled

orremovedintheirentirety.DoNotoperate

themowerwithonlyaportionoftheUltraVac

installed.

Transporting

TransportingaUnit

Useaheavy-dutytrailerortrucktotransportthe

machine.Lockbrakeandblockwheels.Securely

fastenthemachinetothetrailerortruckwithstraps,

chains,cable,orropes.Besurethatthetrailerortruck

hasallnecessarylightingandmarkingasrequiredby

law .Secureatrailerwithasafetychain.

CAUTION

Thisunitdoesnothaveproperturn

signals,lights,reectivemarkings,ora

slowmovingvehicleemblem.Drivingona

streetorroadwaywithoutsuchequipment

isdangerousandcanleadtoaccidents

causingpersonalinjury.Drivingonastreet

orroadwaywithoutsuchequipmentmayalso

beaviolationofStatelawsandtheoperator

maybesubjecttotrafcticketsand/ornes.

DoNotdriveaunitonapublicstreetor

roadway.

WARNING

Loadingaunitonatrailerortruckincreases

thepossibilityoftip-over.Tip-overcould

causeseriousinjuryordeath.

•Useextremecautionwhenoperatinga

unitonaramp.

•Useonlyasingle,fullwidthramp;Do

Notuseindividualrampsforeachside

oftheunit.

•Ifindividualrampsmustbeused,use

enoughrampstocreateanunbroken

rampsurfacewiderthantheunit.

•DoNotexceeda15°anglebetweenramp

andgroundorbetweenrampandtrailer

ortruck.

•Avoidsuddenaccelerationwhiledriving

unitonaramp.

LoadingaUnit

Iftheunitistobedrivenontoatruckortrailer

withthehopperfull,alwaysbacktheunitupthe

ramp.Thiswillreducethechanceofrearward

tipup.Useextremecautionwhenloadingunits

ontrailersortrucks.Onefullwidthrampthatis

wideenoughtoextendbeyondthereartiresis

recommendedinsteadofindividualrampsforeach

sideoftheunit.Thelowerrearsectionofthetractor

frameextendsbackbetweentherearwheelsand

servesasastopfortippingbackward.Havingafull

widthrampprovidesasurfacefortheframemembers

tocontactiftheunitstartstotipbackward.Ifitis

Operation

notpossibletouseonefullwidthramp,useenough

individualrampstosimulateafullwidthcontinuous

ramp.

Rampshouldbelongenoughsothattheangles

betweentherampandthegroundandtherampand

thetrailerortruckDoNotexceed15°.Asteeper

anglemaycausemowerdeckcomponentstoget

caughtastheunitmovesfromramptotraileror

truck.Steeperanglesmayalsocausetheunittotip

backward.Ifloadingonornearaslope,position

thetrailerortrucksoitisonthedownsideofthe

slopeandtherampextendsuptheslope.Thiswill

minimizetherampangle.Thetrailerortruckshould

beaslevelaspossible.

Important:DoNotattempttoturntheunit

whileontheramp,youmaylosecontroland

driveofftheside.

Avoidsuddenaccelerationwhendrivinguparamp

andsuddendecelerationwhenbackingdownaramp.

Bothmaneuverscancausetheunittotipbackward.

Dumpcontentsofhopperbeforetransport.DoNot

transporttheunitwiththehopperfull.

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.

•Cleanmuferandrearframearea.

•Cleanrearscreeninthehood.

Every25hours

•Lubricategreasettings.

Every50hours

•Checkconditionofbelt.

Yearlyorbeforestorage

•Cleanblower.

PeriodicMaintenance

CheckBlower

Housing/Impeller

ServiceInterval:Beforeeachuseordaily

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Inspectforwearordamagedaily.Replaceor

repairwornpartsasneeded

Note:Whenmowinginareaswithsandysoil,

uselowliftbladesonthecuttingdeckandhigher

cuttingheightstominimizewearontheblower

components.

LubricateGreaseFittings

Note:Seechartforserviceintervals.

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.LubricatettingswithNGLIgrade#2

multi-purposegungrease.

Refertothefollowingchartforttinglocations

andlubricationschedule.

LubricationChart

Fitting

Locations

Initial

Pumps

Numberof

Places

Service

Interval

1.Blower

Housing/

Impeller

——

Daily

Maintenance

LubricationChart

Fitting

Locations

Initial

Pumps

Numberof

Places

Service

Interval

2.Idler

Bushings

1–21

25Hours

3.Belts

——

50Hours

4.Mufer/

RearFrame

——

Daily

5.Hopper

Screen

——

Daily

6.Flexible

Discharge

Tube

——

Daily

7.Fill

Sensor

——

Daily

CheckConditionofBelt

ServiceInterval:Every50hours

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Inspectthebeltfordamageorwear.Replacebelt

withoneofthefollowing:

Deck

PartNo.

52inchDeck

109-4948

60inchDeck

103-0866

72inchDeck

103-0867

3.Inspectthebeltpositionontheidlerarm.

Theidlerarmmaybecomebentduringuseor

transport.Abentidlerarmcouldcausethebelt

tojumpoffoftheidlerandbedamaged.

A.Makesurethebeltcoverisinstalledandrun

theblowerforonetotwominutes.

B.Shutoffthedeckdrive,stopengine,wait

forallmovingpartstostopandremovekey.

Engageparkingbrake.Removethebeltcover

andchecktomakesurethatthebeltisriding

nearthecenteroftheatidlerontheidler

arm.

C.Ifthebeltisnotridingnearthecenterofthe

idler,removetheblower,andbendtheidler

armslightly.

Note:Idlerstillneedstoclearthedeck

stiffenerduringoperation.

D.Reinstalltheblowerandbeltcoverandrepeat

stepsAthroughCuntilthebeltispositioned

nearthecenteroftheidler.

FlexibleDischargeTube

ServiceInterval:Asrequired

Inspecttheexibledischargetubeforwearor

damage.

WARNING

Undernormalusetheexibledischargetube

willwear.Objectscouldexitawornexible

dischargetubeathighspeeds.Thrown

objectscancauseseriousinjuryorkillyou

orbystanders.

Checktheexibledischargetubefortears

andholes.Replacewornexibledischarge

tube.

FillSensor

ServiceInterval:Asrequired

Thellsensorislocatedatthefrontofthehopper,

andiswiredintothePTOcircuit.Whengrasslls

thehopperenoughtoblockoneorbothsensors,

analarmwillsound.Thellsensortestingmustbe

madewiththePTOengaged,buttheenginedoes

nothavetoberunning.

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Unlatchthedoorandpullthedoorhandle

engagementpintoraisethedoortothetopofthe

hopper(seeFigure13).

3.Reachintothehopperandplaceapieceof

maskingorducttapeovertheLHsensor.

4.Closethedoor.

5.SitintheseatandturnthekeytotheRUN

position,butDONOTSTARTtheunit.

6.PulluponthePTOswitchtoengagepowertothe

clutch;youshouldhearaclickfromtheclutch.

7.Thereisasplitseconddelaybeforethellsensor

alarmwillsound.

8.Repeatsteps2through4toremovethetapefrom

thesensor.

Maintenance

Adjustments

Note:TheUltraVacQDSwasadjustedatthefactorytooperateproperly.However,therearethreebasic

adjustmentsthatcanbemade,shouldyourunitrequirethem:

1.Fillsensors:Locatedinsidethehopper,they

soundanalarmwhenthehopperisfull.Theycan

beadjustedforvaryinggrassconditionsthatll

thehopperdifferently(seeFigure11).

Figure11

1.Fillsensor

MovingtheLHsensorupworksbetterinwetter

conditions.

MovingtheLHsensordownworksbetterin

dryerconditions.

2.Latches:Thelatches(Figure12)canbeadjusted.

Withthedoorclosed,thelatchplateshouldbe

setsothatthelatchcamscompletelyengageand

contactthelatchplatesboltedtothedoor.

Figure12

1.Over-centerspring3.Theseveboltsadjust

thelatchcamweldment

2.Whizlocknuts

3.Latchhandlelink:Thelatchhandleneedstobe

abletosnapover-centertokeepthelatchcams

tightagainstthedoorlatchplatesandthedoor

pulledshut.Thelengthofthelatchlinkageis

controlledbythetwowhizlocknutsoneitherside

ofthelatchlink(Figure12).Thewhizlocknuts

shouldbeadjustedsothatreasonableforceon

thehandleisrequiredtoover-centerandlatch

thedoor.DoNotadjustsothattheover-center

springcollapsescompletelywhenthedoorisfully

latched.

Maintenance

Cleaning

CleanMuferandRear

FrameArea

ServiceInterval:Beforeeachuseordaily

Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

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,

brush-coveredunimprovedland.

CleanRearScreenInHopper

ServiceInterval:Beforeeachuseordaily

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Openhopperdoorbyremovingpinsasshown

andremoveclippingsthatarestucktoscreenas

showninFigure13.Screencanberemovedby

removingpinsatrearofscreen.

Figure13

1.Putpinhereforstorage3.Screen

2.Pin

CleanBlower

ServiceInterval:Yearlyorbeforestorage

Grassbuildupmaycauseproblemswiththeimpeller

whentheunitisputbackintooperation.

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Removegrassbuildupfromaroundtheimpeller

beforeplacingitinstorage.

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.Hopperisfull.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.Hopperistoofull.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.Raisethedeckslightly.

Chasingleaves.

1.Blowoutfromdeck.1.Installananti-blowoutkit–contactan

AuthorizedServiceDealer.

Blowercomponentsshowsignsofwear

and/oraircleanersandcoolingnsaredirty.

1.Sandordryconditions.1.Uselowliftbladesonthecuttingdeckand

highercuttingheights.

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Exmark Ultra Vac QDS Frontrunner FRCK724 User manual

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Model: Ultra Vac QDS Frontrunner FRCK724

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