Exmark 850 User manual

Brand: Exmark

Model: 850

Category: Lawnmowers

Type: User manual

This manual is also suitable for

000 & Higher

COMMERCIAL21

ForSerialNos.

850,000&Higher

PartNo.4500-674Rev.A

WARNING

CALIFORNIA

Proposition65Warning

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,or

otherreproductiveharm.

Important:Theengineinthisproductisnot

equippedwithasparkarrestermufer.Itisa

violationofCaliforniaPublicResourceCode

(CPRC)Section4442touseoroperatethis

engineonanyforest-covered,brush-covered,or

grass-coveredlandasdenedinCPRC4126.

Otherstatesorfederalareasmayhavesimilar

laws.

Toacquireasparkarresterforyourunit,seeyour

EngineServiceDealer.

ThissparkignitionsystemcomplieswithCanadian

ICES-002Cesystèmed’allumageparètincellede

vèhiculeestconformeàlanormeNMB-002du

Canada.

TheenclosedEngineOwner’sManualis

suppliedforinformationregardingTheU.S.

EnvironmentalProtectionAgency(EPA)and

theCaliforniaEmissionControlRegulationof

emissionsystems,maintenanceandwarranty.

KeepthisengineOwner’sManualwithyourunit.

ShouldthisengineOwner’sManualbecome

damagedorillegible,replaceimmediately.

Replacementsmaybeorderedthroughthe

enginemanufacturer.

Exmarkreservestherighttomakechangesor

addimprovementstoitsproductsatanytime

withoutincurringanyobligationtomakesuch

changestoproductsmanufacturedpreviously.

Exmark,oritsdistributorsanddealers,accept

noresponsibilityforvariationswhichmaybe

evidentintheactualspecicationsofitsproducts

andthestatementsanddescriptionscontained

inthispublication.

IndustrialParkBox808

Beatrice,NE68310

Contactusatwww.Exmark.com.

PrintedintheUSA

AllRightsReserved

Introduction

CONGRATULATIONSonthepurchaseofyour

ExmarkMower.Thisproducthasbeencarefully

designedandmanufacturedtogiveyouamaximum

amountofdependabilityandyearsoftrouble-free

operation.

Thismanualcontainsoperating,maintenance,

adjustment,andsafetyinstructionsforyourExmark

mower.

BEFOREOPERATINGYOURMOWER,

CAREFULLYREADTHISMANUALINITS

ENTIRETY.

Byfollowingtheoperating,maintenance,andsafety

instructions,youwillprolongthelifeofyourmower,

maintainitsmaximumefciency,andpromotesafe

operation.

Ifadditionalinformationisneeded,orshouldyou

requiretrainedmechanicservice,contactyour

authorizedExmarkequipmentdealerordistributor.

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.......................9

Specications.......................................................12

ModelNumbers............................................12

Systems.........................................................12

Dimensions...................................................12

ProductOverview................................................13

Operation.............................................................13

Controls........................................................13

Pre-Start........................................................15

OperatingInstructions..................................15

Maintenance.........................................................22

RecommendedMaintenanceSchedule(s)...........22

PeriodicMaintenance.......................................23

CheckEngineOilLevel.................................23

CheckingtheBladeBrakeClutch(Blade

BrakeClutchOnly)....................................23

ChecktheMowerBlade.................................24

CheckforLooseHardware............................25

ChecktheBladeBrakeClutchBail

Operation(BladeBrakeClutchUnits

Only).........................................................25

ServiceAirFilter(KawasakiUnits).................26

ServiceAirFilter(EC21ASHNUnits)............26

ServiceAirFilter(EC21HNBBCand

EC21HNBBCXUnits)..............................27

ChangeEngineOil........................................28

ChangeOilFilter(EC21KA,

EC21KABBC,EC21KAX,

EC21KAY ,EC21KABBCX,

EC21KABBCY ,EC21KACA,and

EC21KABBCCA).....................................29

CheckConditionOfBelt(Self-Propelled

UnitsOnly)...............................................29

CheckSparkPlugs.........................................29

EmptyingtheFuelTankandCleaningthe

FuelFilter..................................................29

Adjustments.....................................................30

AdjustingtheSelf-PropelDrive

(Self-PropelledUnitsOnly)........................30

AdjustingtheBladeBrakeCable(Blade

BrakeClutchUnitsOnly)...........................31

Cleaning...........................................................32

CleanGrassBuild-UpUnderDeck................32

CleaningtheDischargeTunneland

Plug...........................................................32

CleaningUndertheBeltCover

(Self-PropelledUnitsOnly)........................33

CleaningtheBladeBrakeClutchShield

(BladeBrakeClutchUnitsOnly)................33

CleaningUndertheCoverPlate

(Non-BladeBrakeClutchUnits

Only).........................................................33

WasteDisposal..............................................34

Storage.................................................................35

PreparingtheFuelSystem..............................35

PreparingtheEngine.....................................35

GeneralStorageInformation.........................35

RemovingtheLawnMowerfrom

Storage......................................................35

Troubleshooting...................................................36

Safety

SafetyAlertSymbol

ThislawnmowermeetsorexceedstheConsumer

ProductSafetyCommissionbladesafety

requirementsforwalk-behindrotarymowersand

theB71.4specicationsoftheAmericanNational

StandardsInstituteineffectatthetimeofproduction.

Exmarkdesignedandtestedthislawnmowertooffer

reasonablysafeservice;however,failuretocomply

withthefollowinginstructionsmayresultinpersonal

injury.

ThisSafetyAlertSymbol(Figure2)isusedbothin

thismanualandonthemachinetoidentifyimportant

safetymessageswhichmustbefollowedtoavoid

accidents.

Thissymbolmeans:ATTENTION!BECOME

ALERT!YOURSAFETYISINVOLVED!

Figure2

1.Safetyalertsymbol

Thesafetyalertsymbolappearsaboveinformation

whichalertsyoutounsafeactionsorsituations

andwillbefollowedbythewordDANGER,

WARNING,orCAUTION.

DANGER:Whitelettering/Redbackground.

Indicatesanimminentlyhazardoussituationwhich,if

notavoided,Willresultindeathorseriousinjury.

WARNING:Blacklettering/Orangebackground.

Indicatesapotentiallyhazardoussituationwhich,if

notavoided,Couldresultindeathorseriousinjury.

CAUTION:Blacklettering/Yellowbackground.

Indicatesapotentiallyhazardoussituationwhich,if

notavoided,Mayresultinminorormoderateinjury.

Thismanualusestwootherwordstohighlight

information.Importantcallsattentiontospecial

mechanicalinformationandNoteemphasizes

generalinformationworthyofspecialattention.

SafeOperatingPractices

Training

•ReadtheOperator’sManualandothertraining

material.Iftheoperator(s)ormechanic(s)can

notreadEnglishitistheowner’sresponsibilityto

explainthismaterialtothem.

•Becomefamiliarwiththesafeoperationofthe

equipment,operatorcontrols,andsafetysigns.

•Alloperatorsandmechanicsshouldbetrained.

Theownerisresponsiblefortrainingtheusers.

•Neverletchildrenoruntrainedpeopleoperate

orservicetheequipment.Localregulationsmay

restricttheageoftheoperator.

•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

andattachmentsareneededtoproperlyand

safelyperformthejob.Onlyuseaccessoriesand

attachmentsapprovedbyExmark.

•Wearappropriateclothingincludingsafetyglasses,

substantialfootwear,longtrousers,andhearing

protection.DoNotoperatewhenbarefootor

whenwearingopensandals.Longhair,loose

clothingorjewelrymaygettangledinmoving

parts.

CAUTION

Thismachineproducessoundlevelsin

excessof85dBAattheoperator’searand

cancausehearinglossthroughextended

periodsofexposure.

Wearhearingprotectionwhenoperatingthis

machine.

Safety

•Inspecttheareawheretheequipmentistobe

usedandremoveallrocks,toys,sticks,wires,

bones,andotherforeignobjectswhichcanbe

thrownbythemachineandmaycausepersonal

injurytotheoperatororbystanders.

DANGER

Incertainconditionsgasolineisextremely

ammableandvaporsareexplosive.

Areorexplosionfromgasolinecanburn

you,others,andcausepropertydamage.

•Fillthefueltankoutdoorsinanopen

area,whentheengineiscold.Wipeup

anygasolinethatspills.

•Neverrellthefueltankordrainthe

machineindoorsorinsideanenclosed

trailer.

•DoNotllthefueltankcompletely

full.Addgasolinetothefueltankuntil

thelevelis1/4to1/2inch(6–13mm)

belowthebottomofthellerneck.This

emptyspaceinthetankallowsgasoline

toexpand.

•Neversmokewhenhandlinggasoline,

andstayawayfromanopenameor

wheregasolinefumesmaybeignitedby

spark.

•Storegasolineinanapprovedcontainer

andkeepitoutofthereachofchildren.

•Addfuelbeforestartingtheengine.

Neverremovethecapofthefueltankor

addfuelwhenengineisrunningorwhen

theengineishot.

•Iffuelisspilled,DoNotattempttostart

theengine.Moveawayfromtheareaof

thespillandavoidcreatinganysourceof

ignitionuntilfuelvaporshavedissipated.

•DoNotoperatewithoutentireexhaust

systeminplaceandinproperworking

condition.

DANGER

Incertainconditionsduringfueling,static

electricitycanbereleasedcausingaspark

whichcanignitegasolinevapors.Areor

explosionfromgasolinecanburnyouand

othersandcausepropertydamage.

•Alwaysplacegasolinecontainersonthe

groundawayfromyourvehiclebefore

lling.

•DoNotllgasolinecontainersinsidea

vehicleoronatruckortrailerbedbecause

interiorcarpetsorplastictruckbedliners

mayinsulatethecontainerandslowthe

lossofanystaticcharge.

•Whenpractical,removegas-powered

equipmentfromthetruckortrailerand

refueltheequipmentwithitswheelson

theground.

•Ifthisisnotpossible,thenrefuelsuch

equipmentonatruckortrailerfroma

portablecontainer,ratherthanfroma

gasolinedispensernozzle.

•Ifagasolinedispensernozzlemustbe

used,keepthenozzleincontactwiththe

rimofthefueltankorcontaineropening

atalltimesuntilfuelingiscomplete.

WARNING

Gasolineisharmfulorfatalifswallowed.

Long-termexposuretovaporshascaused

cancerinlaboratoryanimals.Failuretouse

cautionmaycauseseriousinjuryorillness.

•Avoidprolongedbreathingofvapors.

•Keepfaceawayfromnozzleandgas

tank/containeropening.

•Keepawayfromeyesandskin.

•Neversiphonbymouth.

•Checkthattheoperator’spresencecontrols,

safetyswitches,andshieldsareattachedand

functioningproperly.DoNotoperateunlessthey

arefunctioningproperly.

Safety

Operation

WARNING

Operatingengineparts,especiallythe

mufer,becomeextremelyhot.Severeburns

canoccuroncontactanddebris,suchas

leaves,grass,brush,etc.cancatchre.

•Allowengineparts,especiallythemufer,

tocoolbeforetouching.

•Removeaccumulateddebrisfrommufer

andenginearea.

•Installandmaintaininworkingordera

sparkarresterbeforeusingequipment

onforest-covered,grass-covered,or

brush-coveredunimprovedland.

WARNING

Engineexhaustcontainscarbonmonoxide,

whichisanodorlessdeadlypoisonthatcan

killyou.

DoNotrunengineindoorsorinasmall

connedareawheredangerouscarbon

monoxidefumescancollect.

•Operateonlyindaylightorgoodarticiallight,

keepingawayfromholesandhiddenhazards.

•Starttheenginecarefullyaccordingtoinstructions

withfeetwellawayfromtheblade.

•Neverraisedeckwithbladesrunning.

•Neveroperatethemowerwithdamagedguards,

shields,orcovers.Alwayshavesafetyshields,

guards,switchesandotherdevicesinplaceandin

properworkingcondition.

•Nevermowwithoutthedischargedoor.DoNot

operateunlessthedischargedoor,grasscatcher,

mulchplug,orreardischargechutekitareinplace

andworkingproperly.

•Grasscatchercomponentsaresubjecttowear,

damageanddeterioration,whichcouldexpose

movingpartsorallowobjectstobethrown.

Frequentlycheckthecomponentsandreplace

themwiththemanufacturer’srecommendedparts

whennecessary.

•DoNotchangetheenginegovernorsettingor

overspeedtheengine.

•Neverattempttomakewheelheightadjustments

whiletheengineisrunning.

•Stopengine,waitforallmovingpartstostop,

removethesparkplugwire(s).

–Beforechecking,cleaningorworkingonthe

mower.

–Afterstrikingaforeignobjectorabnormal

vibrationoccurs(inspectthemowerfor

damageandmakerepairsbeforerestarting

andoperatingthemower).

–Beforeclearingblockages.

–Wheneveryouleavethemower.

•Stopengine,waitforallmovingpartstostop:

–Beforerefueling.

–Beforedumpingthegrasscatcher.

–Beforemakingheightadjustments.

WARNING

Hands,feet,hair,clothing,oraccessoriescan

becomeentangledinrotatingparts.Contact

withtherotatingpartscancausetraumatic

amputationorseverelacerations.

•DoNotoperatethemachinewithout

guards,shields,andsafetydevicesin

placeandworkingproperly.

•Keephands,feet,hair,jewelry,orclothing

awayfromrotatingparts.

•Keepclearofthedischargeopeningatalltimes.

•Thismowerwasdesignedforoneoperator

only.Keepallothersawayfrommowerduring

operation.

•DONOToperatethemowerwhenpeople,

especiallychildren,orpetsareinthearea.

•Bealert,slowdownandusecautionwhenmaking

turns.Lookbehindandtothesidebefore

changingdirections.

•Stoptheblades,slowdown,andusecautionwhen

crossingsurfacesotherthangrassandwhen

transportingthemowertoandfromtheareato

bemowed.

•Beawareofthemowerdischargepathanddirect

dischargeawayfromothers.

Safety

•DoNotoperatethemowerundertheinuence

ofalcoholordrugs.

•Useextremecarewhenloadingorunloadingthe

machineintoatrailerortruck.

•Usecarewhenapproachingblindcorners,shrubs,

trees,orotherobjectsthatmayobscurevision.

SlopeOperation

UseExtremecautionwhenmowingand/orturning

onslopesaslossoftractionand/ortip-overcould

occur.Theoperatorisresponsibleforsafeoperation

onslopes.

DANGER

Operatingonwetgrassorsteepslopescan

causeslidingandlossofcontrol.Lossof

controland/orlossofoperator’sfooting

couldresultinafallwithanarmorleg

gettingunderthemowerorenginedeck

whichmayresultinseriousinjury,deathor

drowning.

•Mowacrossslopes,neverupanddown.

•DoNotmowslopeswhengrassiswet.

•DoNotmowneardrop-offsornearwater.

•DoNotmowexcessivelysteepslopes.

•Reducespeedanduseextremecaution

onslopes.

•Avoidsuddenturnsorrapidspeed

changes.

•Whenfeasible,avoidoperatingtheequipmentin

wetgrass.

•Progressivelygreatercareisneededastheslope

increases.

•Removeormarkobstaclessuchasrocks,tree

limbs,etc.fromthemowingarea.Tallgrasscan

hideobstacles.

•Watchforditches,holes,rocks,dipsandrisesthat

changetheoperatingangle,asroughterraincould

overturnthemachine.

•Useextremecarewithgrasscatchersor

attachments.Thesecanchangethestabilityofthe

machineandcauselossofcontrol.

MaintenanceandStorage

•Stoptheengineandremovethesparkplug

wire(s).Waitforallmovementtostopbefore

adjusting,cleaningorrepairing.

•Keepengineandengineareafreefrom

accumulationofgrass,leaves,excessivegrease

oroil,andotherdebriswhichcanaccumulate

intheseareas.Thesematerialscanbecome

combustibleandmayresultinare.

•LetenginecoolbeforestoringandDoNotstore

nearameoranyenclosedareawhereopenpilot

lightsorheatappliancesarepresent.

•Shutofffuelwhilestoringortransporting.Do

Notstorefuelnearamesordrainindoors.

•Parkmachineonlevelground.Neverallow

untrainedpersonneltoservicemachine.

•Removesparkplugwirebeforemakingany

repairs.

•Usecarewhencheckingblades.Wraptheblade(s)

orweargloves,andusecautionwhenservicing

them.Onlyreplacedamagedblades.Never

straightenorweldthem.

•Keephandsandfeetawayfrommovingparts.

Ifpossible,DoNotmakeadjustmentswiththe

enginerunning.

•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.

68-7410

94-8072

103-6328

EC21KABBCX

1.Choke4.Slow

2.Fast5.Engine—stop

3.Continuousvariable

setting

109-8191

EC21KABBC,EC21KAY ,EC21KA,EC21KABBCCA,

EC21KACA,EC21KAX,EC21KABBCY

Safety

109-8194

EC21KABBCY ,EC21KABBCCA

1.Fast

3.Slow

2.Continuousvariable

setting

4.Engine—stop

109-9317

116-1922

116-2685

117-2718

116-1900

Safety

116-2737

Specications

ModelNumbers

SerialNos:850,000andHigher

EC21ASHN;EC21ASKA;EC21ASKAP;EC21HNBBC;EC21HNBBCX;EC21KA;EC21KACA;EC21KAX;

EC21KAY;EC21KABBC;EC21KABBCCA;EC21KABBCX;EC21KABBCY

Systems

Engine

•EngineSpecications:SeeyourEngineOwner’s

Manual

•RPM:3000(NoLoad):EC21ASHN

•RPM:3300(NoLoad):Allunitsexcept

EC21ASHN

FuelSystem

•Capacity:

EC21ASHN,EC21KACA,EC21KABBCCA,

EC21ASKAandEC21ASKAPUnits:

2.0qt(1.9L)

Allotherunits:4.0qt(3.8L)

•TypeofFuel:Regularunleadedgasoline,87

octaneorhigher;containingnomorethan10%

methanolorethanol.

•FuelFilter:Non-replaceable,intank

•FuelShut-OffValve:

EC21KACA,EC21KABBCCA,EC21ASKAand

EC21ASKAPUnitsDoNothaveashut-offvalve.

Allotherunitshaveashut-offvalve.

SafetyInterlockSystem

ForunitswithoutaBladeBrakeClutch:Operator

musthavethebladecontrolbaildepressedtostart

theengine.Releasingthebladecontrolbailwillcause

theenginetostop.

Transmission(SelfPropelledUnits)

Variable

SpeedRange:0–4.2mph(6.8km/hr)

CuttingDeck

•CuttingWidth:21inches(53.3cm)

•BladeBrake:Whenthebladeengagementcontrol

ismovedtothedisengagedpositionafriction

brakepadstopstherotationoftheblades.

•BladeSize:(1ea.):20.88inches(53.0cm)

•Deck:21inchesrigid.Deckdesignallowsfor

bagging,mulchingorreardischarge.

•CuttingHeightAdjustment:

Adjustsfrom1inch(2.5cm)to41/2inches(11.4

cm)in1/2inch(1.3cm)increments.

•MulchingKit:StandardonEC21KA,

EC21KABBC,EC21HNBBC,EC21KACA,

EC21KABBCCA,EC21KAX,EC21KAY ,

EC21KABBCX,andEC21KABBCYUnits

•RearDischargeKit:Optional

Dimensions

CurbWeight:

98-122lb(44-55kg)Weightsmayvaryslightly

dependingonengineoption.

OverallWidth:

22inches(55.9cm)

OverallLengthandHeightat

21/2inchCuttingHeight:

HandleSettingLengthHeight

High61.00inches

(154.9cm)

39.00inches

(99.1cm)

Medium

63.00inches

(160.0cm)

37.50inches

(95.3cm)

Low

64.50inches

(163.8cm)

35.00inches

(88.9cm)

Operation

ProductOverview

Figure3

1.Grassbag

5.Dischargedoor

2.Handle6.Rearwheelheight

adjustment

3.DriveBail

(Self-PropelledUnits

Only)

7.Frontwheelheight

adjuster

4.BladeControlBail

Operation

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

Controls

BladeControlBail

LocatedontheupperhandleasshowninFigure4.

Whenthebladecontrolbailisdepressed,thesystem

sensesthattheoperatorisinthenormaloperator’s

position.

•ForUnitswithaBladeBrakeClutch:When

thebladecontrolbailisreleased,thesystem

sensesthattheoperatorhasmovedfromthe

normaloperatingpositionandwillstoptheblade.

•ForUnitswithoutaBladeBrakeClutch:

Whenthebladecontrolbailisreleased,thesystem

sensesthattheoperatorhasmovedfromthe

normaloperatingpositionandwillkilltheengine.

Figure4

BladeBrakeUnitShown

1.Bladecontrollocklever(BladeBrakeUnitsOnly)

2.Bladecontrolbail

3.Handle

4.Drivebail(Self-PropelledUnitsOnly)

Self-PropelDriveBail(Self-Propelled

UnitsOnly)

LocatedontheupperhandleasshowninFigure4.

Whentheself-propeldrivebailissqueezed,the

unitwillmoveforwardbasedonhowfarthebail

isdepressedtowardthehandle.Whenthisbailis

releasedtheunitwillstopmoving.

Operation

Throttle-ChokeLever(EC21KABBCX,

EC21KABBCY,EC21KABBCCA)

Locatedontheleftsideoftheengineasshownin

Figure11.

Theleverisusedtocontrolenginespeed.Moving

thethrottletothefullforward(Choke)positionwill

placetheleverinthechokeposition.Thechokeaids

instartingacoldengine.Movingthethrottlecontrol

forwardwillincreaseenginespeedandmovingitto

therearwilldecreaseenginespeed.

Thethrottle-chokecontrolalsoincludesanengine

killposition.Movingtheleverintothefullrearward

(Stop)positionwillkilltheengine.

Note:Someunitswillnothavethechokeposition.

ChokeControl(EC21HNBBC,

EC21HNBBCX)

Locatedonthefrontleftsideoftheengineasshown

inFigure10.

Thechokeaidsinstartingacoldengine.Pulling

outwardwillplacethecontrolinthechokeposition.

Pushingthecontrolinwardshutsoffthechoke.

BladeControlLockLever(Blade

BrakeClutchUnitsOnly)

Thebladecontrollockleverislocatedontheright

sideofthehandlenexttotheBladeControlBailas

showninFigure4.

Movingthebladecontrollockleverintothefull

forwardpositionreleasesthebladecontrolbail.

Squeezingthebladecontrolbailagainstthehandle

engagestheblade.Releasingthebladecontrolbail

automaticallydisengagestheblade.Thebladecontrol

lockleverwillresettolockthebladecontrolbail.

EngineStopSwitch

Locatedontheleftsideoftheengineinfrontof

thefueltankasshowninFigure5.Theenginestop

switchisusedonEC21HNBBC,EC21HNBBCX,

andEC21KABBC(seeFigure10andFigure11).

Presstheswitchto“STOP”tokilltheengine.Press

“|”beforestartingtheengine.

Figure5

Clearplasticcoverremovedforclarity

1.Enginestopswitch

2.Press“STOP”tokillengine

3.Press“I”beforestartingengine

FuelShut-OffValve

Thefuelshutoffvalveislocatedbetweenthe

carburetorandthefueltank.Thefuelshutoffvalve

shutsofftheowoffuelwhenthemachinewill

notbeusedforafewdays,whenparkinginsidea

building,andduringtransporttoandfromthejob.

Figure6

KawasakiUnit

1.Fuelvalve

Operation

Figure7

HondaUnit

1.Aircleaner3.Fuelcap

2.Fuelvalve

OnEC21KA,EC21KABBC,EC21KAX,EC21KAY ,

EC21KABBCX,EC21KABBCY ,andEC21ASHN

units,rotatethevalve1/4turnclockwisetoshutoff

fuel.Rotatethevalve1/4turncounterclockwiseto

turnonfuel.

Figure8

1.Rotateclockwisetoclose

2.Rotatecounterclockwisetoopen

OnEC21HNBBCandEC21HNBBCXunits,the

fuelshutoffvalveislocatedontheengineasshown

inFigure9.Rotate1/4turnclockwisetoshutoff

fuel.Rotatethevalve1/4turncounterclockwiseto

turnonfuel.

Figure9

1.Fuelvalve

Pre-Start

Fillfueltank.Forbestresultsuseonlyclean,fresh

regulargradeunleadedgasolinewithanoctanerating

of87orhigher.Toensurefreshness,purchaseonly

thequantityofgasolinethatyouexpecttousein

30days.Usingunleadedgasolineresultsinfewer

combustiondepositsandlongerenginelife.See

EngineOwner’sManual.

Important:Neverusemethanol,gasoline

containingmethanol,gasoholcontainingmore

than10%ethanol,premiumgasoline,orwhite

gasbecausethefuelsystemcouldbedamaged.

DoNotaddoiltogasoline.

DoNotusegasolinethathasbeenstoredsincethe

lastmowingseasonorlonger.

DoNotoverllfueltank.Neverllthefueltankso

thatthefuellevelrisesabovealevelthatis1/2inch

belowthebottomofthellernecktoallowforfuel

expansionandpreventfuelspillage.

Makesureyouunderstandthecontrols,their

locations,theirfunctions,andtheirsafety

requirements.

RefertotheMaintenancesectionandperformallthe

necessaryinspectionandmaintenancesteps.

OperatingInstructions

HandleAdjustment

Theheightofthehandlecanbeadjustedfor

comfortableoperation.Standbehindthehandleto

determinetheheight.Toadjustthehandleheight,

positionthehardwareintooneofthethreeholesin

thehandlebracket.

OpentheFuelShut-OffValve

Rotatethevalve1/4turncounterclockwisetoturn

thefuelon(ifequipped).

StartingtheEngine

1.Connectthewiretothesparkplug.

Operation

Figure10

Hondaunit

1.Mufer

2.Oilll/dipstick

3.Fueltankcap(fueltankvaries)

4.Recoilstarterhandle(locatedonhandlebarforzone

startunits)

5.Enginestopswitch(ifequipped)

6.Airlter

7.Choke

8.Sparkplug

Figure11

Kawasakiunitswithlargefueltankshown

1.Mufer

2.Oilll/dipstick

3.Recoilstarterhandle

4.Fueltankcap(fueltankvaries)

5.Enginestopswitch(ifequipped)

6.Throttle-Choke(ifequipped)

7.ThrottleOnly(ifequipped)

8.Oillter

9.Aircleaner

10.Primerbulb(ifequipped)

11.Sparkplug

2.Openthefuelvalve.

3.ForEC21KABBCXUnit:Movethechoke

controltotheChokeposition

ForEC21KABBCUnit:Turntheenginestop

switchto“|”(seeFigure5).

ForEC21KABBC,EC21KABBCCA,

EC21KABBCY,EC21KAX,EC21KACA,and

EC21KAYUnits:Presstheprimerbulbtwo

times(seeFigure12).

Figure12

ForEC21HNBBCandEC21HNBBCXUnits:

Turntheenginestopswitchto“|”andpull

outwardonthechokecontrol.

Note:DoNotusethechokewhentheengine

iswarmedup.

4.ForunitswithoutaBladeBrakeClutch:Hold

thebladecontrolbailtothehandle.

5.Pullthestarterhandlelightlyuntilyoufeel

resistance,thenpullitsharply.Allowtheropeto

returnslowly.

6.ForEC21KABBCCA,EC21KABBCXand

EC21KABBCYUnits:Whentheenginestarts,

movethethrottlecontroltotheFastposition.

7.ForEC21HNBBCandEC21HNBBCXUnits:

Graduallypushinthechokecontrolastheengine

warmsup.

StoppingtheEngine

1.Bringtheunittoafullstop.

•ForunitswithoutaBladeBrakeClutch:

Releasethebladecontrolbail.Boththe

engineandthebladeshouldstopwithinthree

seconds.

•ForunitswithaBladeBrakeClutch:

Releasethebladecontrolbailandtheblade

controllockleverresets.Thebladeshould

stopwithinthreeseconds;theenginewill

continuetorun.

Operation

EC21KABBCCA,EC21KABBCX,and

EC21KABBCY:Movethethrottletothe

(Stop)positiontokilltheengine.

EC21KABBC,EC21HNBBCX,and

EC21HNBBC:Presstheswitchto“STOP”

tokilltheengine(seeFigure5).

Note:Ifthebladedoesnotstopwithin3

secondsafterreleasingthebladecontrolbail,

contactanAuthorizedServiceDealer.

2.Closethefuelshut-offvalve,ifequipped,when

themachinewillnotbeinuseforafewdays,

whentransporting,orwhentheunitisparked

insideabuilding.

OperatingtheSelf-PropelDrive

(Self-PropelledUnitsOnly)

Thelawnmowerisvariablespeed,themoreyou

squeezethedrivebailthefasterthemachinetravels.

1.Starttheengine.

2.Squeezethedrivebailagainstthehandle(see

Figure4).

Note:Youcanvarythegroundspeedby

increasingordecreasingthedistancebetween

thegroundspeedcontrolbailandthehandle.

Lowerthecontrolbailtodecreasetheground

speedwhenyouaremakingaturnorifthelawn

mowerismovingtoofastforyou.Ifyoulower

thecontrolbailtoofarthelawnmowerstops

self-propelling.Squeezethegroundspeedcontrol

bailclosertothehandletoincreasetheground

speed.Whenyouholdthegroundspeedcontrol

bailtightagainstthehandle,thelawnmower

self-propelsatthemaximumgroundspeed.

Releasethedrivebailtostopmovingwhenyou

usethelawnmowerfortrimmingorwhenever

youleavethelawnmower.

3.Todisengagetheself-propeldrive,releasethe

drivebail.

Note:Themowercomeswithfreewheeling

clutcheswhichmakeiteasiertopullthemower

rearward.Todisengagetheclutches,youmay

needtopushthemowerforwardoneinch(2.5

cm)ormoreafteryoureleasetheself-propel

drivebail.

OperatingtheBladeControlBail

(UnitsWithoutBladeBrakeClutch)

1.Squeezethebladecontrolbailagainstthehandle.

2.Starttheengine.

3.Whenthebladecontrolbailissqueezedagainst

thehandle,thebladeshouldengage.

4.Releasethebladecontrolbail.Boththeengine

andthebladeshouldstop.

OperatingtheBladeControlLever

(BladeBrakeClutchUnitsOnly)

1.Starttheengine.

2.Pushandholdthebladecontrollockleverforward

toreleasethebladecontrolbail(Figure13).

Figure13

1.Bladecontrollocklever

4.Pushforward

2.Lockedposition5.Unlockedposition

3.Bladecontrolbail

6.Squeezeagainsthandle

3.Squeezethebladecontrolbailagainstthehandle

andreleasethebladecontrollocklever;theblade

shouldengage.

4.Releasethebladecontrolbailtodisengagethe

blade.Thebladecontrollockleverwillresetto

lockthebladecontrolbail.

UsingtheMulchPlug

Occasionallyyoumaywishtousethemulchplugto

mulchthegrassandleafclippingsbackintothelawn.

•InstallingtheMulchPlug:

1.Stoptheengineandwaitforallmovingparts

tostop.

2.Removethegrassbagifitisonthemower.

3.Raisethedischargedoorandinsertthemulch

plugintothedischargeopening.Thelipon

theplugwillsnapintothemowerhousing.

Operation

Figure14

1.Mulchplug3.Lip

2.Dischargedoor4.Mowerhousing

4.Lowerthedischargedoor.

•RemovingtheMulchPlug:

Note:Whengrassisthickandlush,clippings

maycollectonandaroundthedischargetunnel

plug.Thismaymakeitdifculttoremovethe

plug.Cleantheplugthoroughlyaftereachuse.

1.Toremovethemulchplug,raisethedischarge

doorandpullthemulchplugoutofthe

dischargetunnel.

2.Lowerthedischargedoor.

CheckingtheBladeBrakeClutch

(BladeBrakeClutchUnitsOnly)

ChecktheBladeBrakeClutch(BBC)systembefore

eachusetoensurethatitisoperatingproperly.

NormalTest:

1.Stoptheengineandwaitforallmovingpartsto

stop.

2.Movethelawnmowerontoapavedsurfacein

anon-windyarea.

3.Setallfourwheelstothe21/2inches(6.4cm)

cuttingheight(seeFigure16andFigure17)

4.Takeahalfsheetofnewspaperandcrumple

itintoballsmallenoughtogounderthedeck

(about3inchesor7.6cmindiameter)asshown

inFigure15.

Figure15

1.Crumplednewspaper2.5inches(12.7cm)

5.Placetheballofnewspaper5inches(12.7cm)in

frontofthelawnmower.

6.Starttheengine.

7.Pushthebladecontrollockleverforwardto

releasethebladecontrolbail(Figure4).

8.Squeezethebladecontrolbailagainstthehandle.

bladeshouldengage.

9.Releasethebladecontrolbail.Youshouldheara

“bang.”Thebladeshouldstopinthreeseconds.

Thebladecontrollocklevershouldresettolock

thebladecontrolbail.

10.Immediatelypushthelawnmoweroverthe

newspaperball.

11.Stoptheengineandwaitforallmovingpartsto

stop.

12.Walkaroundthelawnmowertocheckforthe

newspaperball.Iftheballdidnotgounderthe

deck,repeatsteps6through11.

13.Pullthelawnmowerawayfromthenewspaper.

Ifthenewspaperballunravelsorisshredded,

thebladehasnotproperlystopped,resulting

inanunsafeoperatingcondition.Contactan

AuthorizedServiceDealer.

Operation

DANGER

Ifthebladebrakeclutchsystemis

inoperative,thebladewillcontinuetorotate

whenyoureleasethebladecontrolbail.

Contactwiththebladecouldoccur,causing

seriousinjury.

•ChecktheBBCoperationbeforeeach

use.

•NeverusetheBBC-equippedlawnmower

withaninoperativesafetysystem.

•TakeyourlawnmowertoanAuthorized

ServiceDealerforrepairifthesafety

systemfailstooperateproperly.

TestUsingtheGrassBag

1.Installtheemptygrassbagonthedischarge

tunnel.

2.Starttheengine.

3.ForunitswithaBladeBrakeClutch:Pushthe

bladecontrollockleverforwardtoreleasethe

bladecontrolbail(Figure4).

4.Squeezethebladecontrolbailagainstthehandle.

5.Thebagshouldbegintoinate,indicatingthat

thebladeisengagedandrotating.

6.Releasethebladecontrolbail.Ifthebagdoesnot

immediatelydeate,itindicatesthatthebladeis

stillrotating.Thebladebrakeclutchmechanism

maybedeteriorating,and,ifignoredcouldresult

inanunsafeoperatingcondition.Havethelawn

mowerinspectedandservicedbyanAuthorized

ServiceDealer.

AdjustingtheCuttingHeight

Therearwheelsareadjustedtogetherwithaheight

adjustmentrodlocatedonthemowerhousingby

theleftrearwheel.Thefrontwheelsareadjusted

separatelybyremovingthefrontwheelshaft

assemblies,adjustingtheheight,andthenreplacing

theshaftassemblies.Thecuttingheightcanbe

adjustedfrom1inch(25mm)to41/2inches(114

mm)in1/2inch(12.7mm)increments.

WARNING

Adjustingthecuttingheightleverscould

bringyourhandsintocontactwithamoving

blade.Amovingbladecancauseserious

injury.

•Stoptheengineandwaitforallmovement

tostopbeforeadjustingthecutting

height.

•DoNotputyourngersunderthe

housingwhenadjustingthecutting

height.

•RearWheelAdjustment:

1.Pullthewheelheightadjustmentrodupward

toreleasethepinfromthenotchinthe

adjustmentbracket(Figure16).

Figure16

1.Pullupward4.Pin

2.Wheelheightadjustment

rod

5.Rotatetodesiredsetting

3.Adjustmentbracket6.Indicator

2.Applydownwardpressureorliftthehousing

torotatetheheightadjustmentbracket.Use

theindicatortodeterminethedesiredsetting.

3.Releasethewheelheightadjustmentrodtoset

thepinsecurelyinthedesirednotch.

•FrontWheelAdjustment

1.Pullupontheheightadjusterandpullthe

frontwheelshaftassemblyoutwardasshown

inFigure17.

Operation

Figure17

1.Frontwheelshaft

assembly

4.Frontquadrantblockcut

heights

2.Pullup5.Pulloutward

3.Heightadjuster

6.Shaftgroove

2.Insertthefrontwheelshaftassemblyintothe

desiredcutheightsettinginthefrontquadrant

block.Lowertheheightadjusterintothe

grooveonthefrontwheelshaft.Pulland

pushthewheelshaftassemblytomakesureit

haslockedintoplace.

UsingtheGrassBag

•InstallingtheGrassBag

1.Stoptheengineandwaitforallmovingparts

tostop.

2.Openthereardoor.

3.Graspthehandleonthebagandsettherear

ofthebagframeontothehandlebracket

notch(Figure18).

Figure18

1.Bag4.Handlebracketnotch

2.Handle5.Reardoor

3.Bagframe

6.Lower

4.Oncethebagisseated,lowerthereardoor

ontothebag.

•MowingwiththeGrassBag

WARNING

Aworngrassbagcouldallowsmallstones

andothersimilardebristobethrowninthe

operator’sorbystander’sdirection.Thrown

objectscanresultinseriouspersonalinjury

ordeathtotheoperatororbystanders.

Checkthegrassbagfrequently.Ifitis

damaged,installanewExmarkreplacement

bag.

Cutthegrassuntilthebagisfull.

Note:DoNotoverllthebag.

•RemovingtheGrassBag

1.Stoptheengineandwaitforallmovingparts

tostop.

2.Raisethereardischargedoorandgraspthe

handleonthebag.

3.Liftthebagoffofthelawnmowerandlower

thereardischargedoor.

4.Graduallytipthebagforwardtoemptythe

clippings.

5.Toinstallthebag,refertothesectionon

InstallingtheGrassBag.

DANGER

Ifthedischargedoordoesnotclose

completely,thelawnmowercouldthrow

objects.Thrownobjectscanresultinserious

personalinjuryordeathtotheoperatoror

bystanders.

•Neveropenthedoortothedischarge

openingwhentheengineisrunning.

•Ifyoucannotclosethedoorbecausethe

grassclippingsclogthedischargearea,

stoptheengineandgentlymovethe

dischargedoorhandlebackandforth

untilyoucanclosethedoorcompletely.If

youstillcannotclosethedoor,removethe

obstructionwithastick,notyourhand.

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Exmark 850 User manual

Brand: Exmark

Model: 850

Category: Lawnmowers

Type: User manual

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