Exmark 850 User manual

Brand: Exmark

Model: 850

Category: Lawnmowers

Type: User manual

This manual is also suitable for

ULTRAV AC®

LAZERZ®,LAZERZ®AS

SERIESX,ANDLAZERZ®AS

MODELS

ForUltraVacSerialNos.

850,000&Higher

(TotLazerZ(LZZ)and

LazerZASSeriesX(LZAS)Units

SerialNos.790,000&Higher)

(TotLazerZAS(LZA)Units

SerialNos.850,000&Higher)

PartNo.4500-608Rev.A

Exmarkreservestherighttomakechangesor

addimprovementstoitsproductsatanytime

withoutincurringanyobligationtomakesuch

changestoproductsmanufacturedpreviously.

Exmark,oritsdistributorsanddealers,accept

noresponsibilityforvariationswhichmaybe

evidentintheactualspecicationsofitsproducts

andthestatementsanddescriptionscontained

inthispublication.

IndustrialParkBox808

Beatrice,NE68310

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,maintainitsmaximumefciency,andpromote

safeoperation.

Ifadditionalinformationisneeded,orshouldyou

requiretrainedmechanicservice,contactyour

authorizedExmarkequipmentdealerordistributor.

Exmarkpartsmanualsareavailableonlineat

http://www.exmark.com/manuals.htm.

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.................................................17

Maintenance.........................................................20

RecommendedMaintenanceSchedule(s)...........20

PeriodicMaintenance.......................................20

CheckBlowerHousing/Impeller...................20

CheckBags....................................................20

CheckExhaustDiverter.................................21

LubricateGreaseFittings...............................21

CheckConditionofBelt................................21

Adjustments.....................................................21

AdjustingtheBlowerDriveBelt

Position.....................................................21

Cleaning...........................................................22

CleanMuferandRearFrameArea................22

CleanRearScreenInHopper.........................22

CleanBlower.................................................22

Troubleshooting...................................................23

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.issufcientlymaturetousecaution;and

3.isofsufcientsizeandweighttooperate

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

•Operateonlyindaylightorgoodarticiallight,

keepingawayfromholesandhiddenhazards.

•Nevermowwiththedischargedeectorraised,

removedoralteredunlessthereisagrass

Safety

collectionsystemormulchkitinplaceand

workingproperly.

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

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).

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

UltraVachopperllswithgrassclippings.Use

progressivelygreatercareonslopesasthehopper

lls.

MaintenanceandStorage

•DisengagePTO,setparkingbrake,stopengine

andremovekeyordisconnectsparkplugwire.

Waitforallmovementtostopbeforeadjusting,

cleaningorrepairing.

•Usecarewhencheckingblades.Wraptheblade(s)

orweargloves,andusecautionwhenservicing

them.Onlyreplacedamagedblades.Never

straightenorweldthem.

•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

103-6604

LZUV2BUnitsOnly

103-6605

103-6607

LZUV3BUnitsOnly

Safety

103-3508

LZUV2BUnitsOnly

109-5890

LZUV3BUnitsOnly

Specications

ModelNumbers

SerialNos:850,000andHigher

LZUV2B–FitsLazerZ(LZZ),LazerZASSeriesX(LZAS),andLazerZAS(LZA)with48or52inchdeck.

LZUV3B–FitsLazerZ(LZZ)andLazerZASSeriesX(LZAS)with60or72inchdeck.FitsLazerZAS(LZA)

with60inchdeck.

Systems

BaggingSystem

•Collectionbins:

–Commercialgrade,clothmeshbagswith

reinforcedbottoms.

–LZUV2BCapacity:8.0bushels

–LZUV3BCapacity: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:

LZUV2B

w/UltraVacQDS

LazerZw/48inchDeck

62.50inches(158.8cm)

LazerZw/52inchDeck

67.75inches(172.1cm)

LZUV3B

w/UltraVac

LazerZw/60inchDeck

75.00inches(190.5cm)

LazerZw/72inchDeck

87.25inches(221.6cm)

OverallLength:

LZUV2B

w/UltraVac

LazerZw/48inchDeck

102.25inches(259.7cm)

LazerZw/52inchDeck

102.25inches(259.7cm)

LZUV3B

w/UltraVac

LazerZw/60inchDeck

107.00inches(271.8cm)

LazerZw/72inchDeck

110.00inches(279.4cm)

CurbWeight:

LZUV2B

UltraVacWeight

Forunitsw/48inchDeck

(3toeboardweights)

309lb(140kg)

Forunitsw/52inchDeck

(2toeboardweights)

266lb(120kg)

LZUV3B

UltraVacWeight

Forunitsw/60inchDeck

(2toeboardweights)

449lb(204kg)

Forunitsw/72inchDeck

(1toeboardweights)

406lb(184kg)

TorqueRequirements

BoltLocation

Torque

ImpellerSpindleBottom

Nut

55-60ft-lb(75-81N-m)

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

Operation

ProductOverview

Figure4

1.Hopper4.Blower

2.Toeboardweight5.Tube

3.Casterweight(LZUV3B

UnitsOnly)

6.Bag

Operation

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

Important:ForSerialNumbers790,000and

higher,multipleaccessoriesaddedtoabase

unitcanchangethestabilityofthemachine.

Readtheunitoperator’smanualtodetermine

ifcounterbalanceweightsarenecessaryforthe

accessoriesinstalledontheunit.

Important:Duetotheaddedweightofthe

UltraVac,itisimportanttoensuretheparking

brakeonyourmowerisadjustedproperly.Before

installingtheUltraVac,makesuretore-adjust

theparkingbrakeonyourmowerasoutlinedin

the“AdjustingtheParkingBrake”procedurein

theMaintenancesectionofthetractorOperator’s

manual.

Pre-Start

Makesureyouunderstandthecontrols,their

locations,theirfunctions,andtheirsafety

requirements.

Ensuretheblower,beltcover,bags,tubesandhopper

areingoodcondition,properlyattached,andlatched.

Important:Verifythatthereinforcedbumpers

areinstalledonyourunitpriortooperation.

RefertotheMaintenancesectionandperformallthe

necessaryinspectionandmaintenancesteps.

OperatingInstructions

Mowing

1.TheUltraVacbloweroperateswhenthePTO

isengaged.Besurethatallpersonsareclear

ofthemowerdeckbeforeengagingthecutting

blades.Setthethrottleto“midway”position.Pull

outwardonthePTOswitchtothe“ROTATE”

position.Acceleratetofullthrottletobegin

mowing.

2.TodisengagethePTO,setthethrottleto

“midway”position.PushinonthePTOswitch

tothe“STOP”positiontostopthecuttingblades

andblower.Thecuttingbladeswillrequirea

slightlylongeramountoftimetocometoa

completestopwhentheblowerisinstalledon

thedeck.Verifythatallrotationindicatorshave

Operation

stoppedbeforeclearingblowerassemblyor

mowerdeck.

3.Toremovethebags,rstdisengagethePTO,stop

theengineandwaitforallmovingpartstostop.

Openthehopperandremovethebagsbylifting

upontherearofthebag,thenunhookingthe

frontclip.Emptythebagsbyinvertingthem.

4.Reinstallbags,closeandlatchhopperbefore

continuingmowing.

Tipsformowingconditions:

•Whenmowinginareaswithsandysoil,use

lowliftbladesonthecuttingdeckandhigher

cuttingheightstominimizewearontheblower

components.

•Whenmowinginwetconditions,suchasjustafter

arainorinheavydew,uselowliftbladesonthe

cuttingdecktominimizepluggingoftheblower.

•Maintainingagroundspeedthatdoesnotpull

downtheengineRPMwillallowforthehighest

productivityandbestqualityofcut.Boggingthe

engineRPMdownbygoingtoofastwillcause

pluggingandqualityofcutissues.

•WhentheUltraVacgetsfull,thesoundof

theblowerwillchangeandtherewillbeslight

blowoutfromthefrontrightcornerofthedeck.

EmptyingtheUltraVacatthispointwillminimize

thepotentialforthetubetoplug.

CollectionSystemRemovalforSide

Discharge

1.Emptythehopper.

CAUTION

Thehopperassemblyisheavywhenitisfull,

whichmaymakeitdifculttoremovethe

hopperassemblyfromtheunit.Theentire

hopperassemblymayfall,whichmaycause

injury.

Priortoremovingthehopperassemblyfrom

theunit,rstemptythecontents.

2.DisengagethePTO,stopengineandwaitforall

movingpartstostop.Removekeyandengage

parkingbrake.

3.Removethedischargetubebyreleasingthelatches

attheblower.Slidethetubeoffthebloweroutlet

andremovetheupperendfromthehopper.

Figure5

1.Hopper7.Toeboardweight

2.Reinforcedbumpers

8.Beltcover

3.Clevispin

9.Blower

4.Casterarmweight

10.Tubes

5.Hairpin11.Bag

6.ForLZUV3BUnitsOnly

4.Removetheknobfromthebeltcoverbracketand

takeoffthebeltcover.

Figure6

1.Beltcoverbracket4.Belt

2.Beltcover5.Decksheave

3.Knob

Operation

CAUTION

Thedecksheavewillbecomeveryhot.

Touchingahotdecksheavecancausesevere

burns.

Allowthedecksheavetocoolcompletely

beforeremovingthebelt.

5.Pulltheidlerreleasehandleandremovethebelt

fromtheuppergrooveofthedecksheave.

6.Unlatchthefrontendoftheblower.Pivotthe

blowerbackandliftitoffthedeck.

Figure7

1.Blowerlatch

2.Pivotblowerawayfromdeck

7.Installthedischargedeectorusingthechute

pivotpinandhairpin(seeFigure8).

Figure8

1.Hairpin

3.Dischargedeector

2.Chutepivotpin

WARNING

Anuncovereddischargeopeningwill

allowobjectstobethrowninoperator’sor

bystander’sdirection.Also,contactwith

bladecouldoccur.Thrownobjectsorblade

contactcancauseseriousinjuryorkillyou

orbystanders.

Neveroperatemowerunlessdischarge

deector,orentiregrasscollectionsystem,or

mulchkitisinstalled.

8.Re-installtheplasticbeltcoverandtightenthe

knobs.

9.Removethebagsfromthehopperassemblyby

openingthehopperandliftingupontherearof

thebagandthenunhookingthefrontclip.

10.Removethehopperassembly.DoNotusethe

exhaustdiverterasahandlewhenremovingthe

hopper.

CAUTION

Theexhaustdiverterishot.Touchingahot

exhaustdivertercancausesevereburns.

Allowtheexhaustdivertertocoolcompletely

beforeremovingthehopperassembly.

A.Pushandholdthehopperassemblytowards

theunitandpullthehairpinsandmountpins

fromframemountbarrellocatedoneachside

oftheframelegs.

WARNING

Whenthemountpinshavebeenremoved,

thehopperassemblymayfall.Afalling

hopperassemblymaycauseinjury.

Usecarewhenthemountpinsareremoved

andifnecessary,useassistancewhen

loweringthehopperassemblytotheground.

B.Ifnecessary,useassistanceandcarefullylower

thehopperassemblytotheground.

C.Re-insertthemountpinsintotheframe

mountbarrelandsecurewiththehairpin.

11.Theremovableweightsmustberemovedfrom

theunit.Toremovetheweightonthefrontof

Operation

thetoeboard,removethetwohairpinsthatretain

itandthenliftitfromthemountbracket.The

bracketboltedtothetoeboardremainsonthe

unit.

FortheLZUV3BUnits:Removethecaster

weightsbylooseningtheclampingknobsuntilthe

weightcanbemovedrelativetothecasterarm.

Removethehairpinsandclevispinsthathold

theweightstothecasterarms.Carefullyliftthe

weightsoffofthecasterarms.

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.

12.Themachinecannowbeusedforsidedischarge

mowing.

CollectionSystemInstallation

Important:Verifythatthereinforcedbumpers

areinstalledonyourunitpriortooperation.

Important:Duetotheaddedweightofthe

UltraVac,itisimportanttoensuretheparking

brakeonyourmowerisadjustedproperly.Before

installingtheUltraVac,makesuretore-adjust

theparkingbrakeonyourmowerasoutlinedin

the“AdjustingtheParkingBrake”procedurein

theMaintenancesectionofthetractorOperator’s

manual.

1.Stopengine,removekey,andwaitforallmoving

partstostop.Engageparkingbrake.

2.Removehairpinandchutepivotpin.Remove

dischargedeector.Pivotpinandhairpinmaybe

storedinthepivotholesofthedischargedeector

duringbaggingoperation.

3.Laythehopperassemblydownasshownin

Figure9.

Figure9

1.Lowerbaggermountbar2.Framenotch

4.Removethehairpinfromthemountpinandpull

themountpinoutoftheframemountbarrel.

5.Pickuptheframelegsandhookthenotchonto

thelowermountbar(seeFigure9).

6.Liftthehopperassemblyandpivotitupward

towardsthebackoftheunit(seeFigure10).

Figure10

1.Rotatehopperassembly5.Hairpin

2.Rearbumper6.Mountpin

3.Mountbracket

7.Opening

4.Framemountbarrel

7.Continuetopushthehopperassemblyforward

untilitcontactsthemountbracket.

Operation

8.Adjusttheexhaustdiverterupordowninthe

slotssoittsoverthemufer.

9.Ifneeded,installwashersbetweentheexhaust

diverterandtheframetospacetheguardoutward.

10.Installthemountpinintotheframemount

barrel.Makesurethatitextendsintotheopening

betweentherearbumperandthemountbracket

(seeFigure10).

11.Aligntheholesinthemountpinandframe

mountbarrelandinsertthehairpintolockthe

hopperassemblyintoplace.

12.Tightenthehardwareontheexhaustdiverter.

13.Raisethehopperandinstallthebagassembliesby

insertingthehookportionintotheslotsinthe

baggersupportrods.

14.Removethebeltcoverontherightsideofthe

deck.

15.Mountthebloweronthedeckbyinsertingthe

mountingpinintothetubeweldedtotherear

cornerofthedeck(seeFigure11).Pivotthe

bloweruntilthefrontpinengagestheslotin

thedeck.Adjustthepositionofthefrontpin

ifnecessarytoengagetheslot.Usethelatches

tolocktheblowerinthisposition.Adjustthe

tensiononthelatchtoholdthebloweruptothe

deck,yetallowforreleasebyhand.

Figure11

1.Slot

4.Mountingpin

2.Frontpin5.Decktube

3.Blowerlatch

16.BeltInstallation:

ForSmallDecks:

A.Slipthebeltovertheimpellersheaveonthe

blower.

Note:Itmaybeeasiertoinstallthebeltif

thebeltguideistemporarilyshiftedtoone

sideortemporarilyremoved.Eitherloosen

orremovebothnutsonthetopandbottom

ofthebeltguide.Oncethebeltisinstalled

ontheimpellersheave,reinstallthebeltguide

andtightenallhardware.

Figure12

1.Nut2.Beltguide

B.Pullthespringloadedidlerreleasehandle

backandinstallthebeltintheuppergroove

ofthetopspindlesheave.Thebeltshouldbe

routedasshowninFigure13.

Figure13

SmallDecks—ViewfromT opofBlower

1.Springloadedidler

4.Beltguide

2.Impellersheave5.Decksheave

3.Fixedidler

ForLargeDecks:

Pullthespringloadedidlerbackandslipthebelt

overthetopdecksheave.

Operation

Figure14

LargeDecks—ViewfromT opofBlower

1.Impellersheave

3.Springloadedidler

2.Decksheave

17.Positionthebeltcoveratanangleandslideit

underthemowerframe(seeFigure15).

Figure15

1.Blower

3.Mowerframe

2.Beltcover

18.Pushdownonthebackofthecoverandslideit

backwardsundertheblower.

19.Slidethebeltcoverforwarduntilitisseatedunder

bothlipsonthedeck.

Figure16

1.Blower3.Decklip

2.Beltcover

20.Installtheknobanditshardware.

21.Sliptheupperandthelowertubestogether.

22.Inserttheuppertubeintothehopperseal–

pushinthenpulloutsothatthesealisextended

outward.

23.Alignthedimpleontheuppertubewiththeend

ofhoppersealandcenterbetweenthetwoscrews

asshowninFigure17.

Figure17

1.Dimple

24.Setthedeckinlowestcuttingposition.

25.Slidethelowertubeontotheblowerandattach

thelatches.(Makesurethattheuppertubedoes

notmoveoutofalignment).

26.Ifthelowertubeisreplaced,drillthree7/32inch

holesinthelowertubeusingtheuppertubeholes

asreference.SeeFigure18.

27.Removethetubesfromunitandassemblethe

upperandthelowertubesusingthree#10-24

x3/4inchhexwasherheadscrews,three#10

washers,andthree#10-24nylocnuts.Thescrew

headshouldbeinstalledtotheinsideofthe

Operation

tubetoprovideminimumobstructiontoow .

Makesurethattheupperandthelowerendsare

orientedproperlyasthetubesareassembled.

(Partinglinesshouldroughlybelinedup.)

Figure18

1.Drilltheholeshere

28.Slidethelowerendofthetubeassemblyoverthe

bloweroutletandalignthenotchwiththetube

latch.Latchthetubetotheblower.

29.Installtheremovableweights.Hookthefronttoe

boardweightassemblyoverthetopoftheweight

mountingplateandsecurewithtwohairpins

Figure19).

WeightQuantities

Deck

Size

48inch52inch60inch72inch

Toe

Board

Weight

221

Caster

Weight

——

Note:Theremovableweightsareheavy.Use

carewhenliftingthem.makesurethatyoucan

holdthemsecurelybeforeliftingthem.Use

cautionwhenpositioningyourhandstothatyou

DoNotsetthemdownonyourhandsorngers.

Figure19

30.ForLZUV3BUnitsOnly:

A.Installtheremovablecasterweightsonthe

casterarms(seeFigure20).

B.Inserttheclevispinthroughthebrackethole

andfastenwithahairpin.

C.Tightenknobonweightassemblyuntilthe

weightisclampedsecurelytothecasterarm.

Figure20

ForLZUV3BUnitsOnly

1.Clevispin

3.Hairpin

2.Knob

4.Casterweight

Transporting

TransportingaUnit

Useaheavy-dutytrailerortrucktotransportthe

machine.Lockbrakeandblockwheels.Securely

fastenthemachinetothetrailerortruckwithstraps,

chains,cable,orropes.Besurethatthetrailerortruck

Operation

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

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

DoNottransporttheunitwiththehopperfull.

Emptythehopperbeforeattemptingtoloadunit

ontrailerortruck.Thiswillreducethechance

ofrearwardtipup.Useextremecautionwhen

loadingunitsontrailersortrucks.Onefullwidth

rampthatiswideenoughtoextendbeyondtherear

tiresisrecommendedinsteadofindividualrampsfor

eachsideoftheunit.Thelowerrearsectionofthe

tractorframeextendsbackbetweentherearwheels

andservesasastopfortippingbackward.Having

afullwidthrampprovidesasurfacefortheframe

memberstocontactiftheunitstartstotipbackward.

Ifitisnotpossibletouseonefullwidthramp,use

enoughindividualrampstosimulateafullwidth

continuousramp.

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.

RolloverProtectionSystem(ROPS)

Therollbarhasanintermediatepositionthatallows

thebartobeloweredtoprovideoverheadclearance,

butnotrestdirectlyontheUltraVacassembly.Insert

a1/2x3inchboltand1/2inchnut(orExmark

serviceparts:clevispinP/N283-55andhairpinP/N

1-806005)intothedownstopholeoneachsideand

lowertherollbar.

Figure21

1.Intermediateposition2.Downstophole

Operation

Important:Therollbarisanintegraland

effectivesafetydevice.Keeptherollbarinthe

raisedandlockedpositionwhenoperatingthe

mower.Lowertherollbartemporarilyonlywhen

absolutelynecessary.

RefertotheOperator’smanualsuppliedwithyour

tractorforadditionalROPSsafetyandoperating

instructions.

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.

•Checkbags.

•Checkexhaustdiverter.

•Cleanmuferandrearframearea.

•Cleanrearscreeninthehopper.

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.

CheckBags

ServiceInterval:Beforeeachuseordaily

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Inspectthebagsforwear,tears,ordamage.

WARNING

Undernormalusethebagwilldeteriorate

andwear.Objectscouldexitthroughworn

bagathighspeeds.Thrownobjectscan

causeseriousinjuryorkillyouorbystanders.

Checkbagsfrequentlyfortearsandholes.

Replacewornbags.

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Exmark 850 User manual

Brand: Exmark

Model: 850

Category: Lawnmowers

Type: User manual

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