Exmark 131-7709 User manual

FormNo.3392-399RevA

42inMulchingKit

Zero-Turn-RadiusRidingMower

ModelNo.131-7709

InstallationInstructions

WARNING

CALIFORNIA

Proposition65Warning

ThisproductcontainsachemicalorchemicalsknowntotheStateofCaliforniato

causecancer,birthdefects,orreproductiveharm.

Installation

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescriptionQty.Use

1Nopartsrequired–Preparethemower.

2Nopartsrequired–Removetheblades.

Bafe1

Carriagebolt(5/16x3/4inch)1

Flangenut(5/16inch)6

Blade2

Kickerplate1

Installthekit.

4Mulchingmowerblade2Installthebladesandmower.

WARNING

Whilemaintenanceoradjustmentsarebeingmade,

someonecouldstarttheengine.Accidentalstarting

oftheenginecouldseriouslyinjureyouorother

bystanders.

Removethekeyfromtheignitionswitch,engage

parkingbrake,andpullthewiresoffthesparkplugs

beforeyoudoanymaintenance.Pushthewires

asidesotheydonotaccidentallycontactthespark

plugs.

Note:Determinetheleftandrightsidesofthemachine

fromthenormaloperatingposition.

PreparingtheMower

NoPartsRequired

Procedure

1.Stoptheengineandremovetheignitionkey.

2.RemovethemowerasdescribedinyourOperator's

Manual.

3.Turnthemowerupsidedown.

4.Removeandretaintheexistingdischargebafeand

mountinghardwareasshowninFigure1.

OriginalInstructions(EN)PrintedintheUSA

AllRightsReserved*3392-399*A

Note:Retainthedischargebafeforreuseifthe

mulchkitisremoved.

G01801 1

Figure1

1.Existingdischargebafe

5.Installthemountinghardware,fromstep4,intothe

holesinthedeckwherethedischargebafewas

installed.

WARNING

Openholesinthemowerexposeyouand

otherstothrowndebriswhichcancause

severeinjury.

•Neveroperatethemowerwithouthardware

mountedinallholesinthemowerhousing.

•Installthehardwareinthemountingholes

whenyouremovethemulchingbafe.

RemovingtheBlades

NoPartsRequired

Procedure

1.Choosethestyleofblade,ofthoseshowninFigure

2andFigure3thatbestmatchesthebladeson

yourmower.Holdthebladeendusingaragor

thickly-paddedgloveandremovethebladeasshown.

Figure2

BladestyleAmountingconguration

1.BladestyleA4.Bladebolt

2.Crosssectionofblade

styleA

5.Curvedwasher

3.Bladestiffenerrequired6.Bladestiffener

Figure3

BladestyleBmountingconguration

1.BladestyleB4.Bladebolt

2.Crosssectionofblade

styleB

5.Curvedwasher

3.Bendsaddextrastiffness

2.Thereplacementbladeswithinthiskitdonotneeda

stiffener.Ifyouremovedone,keepitincasefuture

replacementbladesrequireit.

InstallingtheKit

Partsneededforthisprocedure:

1Bafe

1Carriagebolt(5/16x3/4inch)

6Flangenut(5/16inch)

2Blade

1Kickerplate

Procedure

1.Looselyinstallthebafeassemblytotherightsideof

themowerdeckusingthecarriagebolt(5/16x3/4

inch)and2angenuts(5/16inch)asshowninFigure

Figure4

Dischargedeectorremovedforclarity

1.Flangenut(5/16inch)3.Carriagebolt(5/16x3/4

inch)

2.Bafeassembly4.Weldedpost

2.Removethe2plugboltsandnutsfromthedeckas

showninFigure5.

Figure5

1.Kickerplate3.Removeplugboltsand

nuts

2.Flangenut(5/16inch)

3.Securethekickerplatetotheleftsideofthemower

deckusing4ange(5/16inch)nutsasshowninFigure

4.Tightenallhardware.

InstallingtheBladesand

Mower

Partsneededforthisprocedure:

2Mulchingmowerblade

Procedure

1.Installthebladeontothespindleshaft(Figure6).

Important:Thesailarea(curvedpart)ofthe

blademustbepointingupwardtowardtheinside

ofthemowertoensurepropercutting.

g028369

Figure6

1.Sailareaofblade3.Curvedwasher

2.Blade4.Bladebolt

2.Installthecurvedwasher(cuppedsidetowardthe

blade)andthebladebolt(Figure6).

Note:Donotinstallabladestiffener.Theseblades

donotrequirethebladestiffener(Figure6).

3.Torquethebladeboltto47-88N-m(35-65ft-lb).

4.InstallthemowerasdescribedinyourOperator’sManual.

5.Installthesparkplugcablesandignitionkey.

Operation

ConvertingtoSide-Discharge

Operation

1.Reversethestepsin4InstallingtheBladesandMower

(page4).

2.Reversethestepsin3InstallingtheKit(page2)to

removethekickerplateandbafeassembly.

3.Installthedischargebafe.

4.Plugallopenholesinthedeck.

5.InstallstandardbladesasdescribedintheOperator’s

Manual.

OperatingTips

SelectingtheProperHeight-of-Cut

SettingtoSuittheConditions

Removeapproximately1inchornomorethat1/3ofthe

grassbladewhencutting.Inexceptionallylushanddense

grassyoumayhavetoraisetheheight-of-cutsettinganother

notchorconverttosidedischargeorbaggingoperations.

MowinginExtremeConditions

Airisrequiredtocutandrecutgrassclippingsinthemower

housing,sodonotsettheheight-of-cuttoolowortotally

surroundthehousingbyuncutgrass.Alwayshaveoneside

ofthemowerhousingfreefromuncutgrass,allowingairto

bedrawnintohousing.Whenmakinganinitialcutthrough

thecenteroftheuncutarea,operatethemachineataslower

speedandbackupifthemowerstartstoclog.

MowingattheProperIntervals

Undernormalconditionsyouwillneedtomowevery4-5

days.However,grassgrowsatdifferentratesatdifferent

times.Inordertomaintainthesameheight-of-cut,youwill

needtocutmorefrequentlyinearlyspring;asthegrass

growthrateslowsinmidsummer,cutonlyevery8-10days.

Ifyouareunabletomowforanextendedperiodduetothe

weatherconditionsorotherreasons,converttosidedischarge

orbaggingoptionsormowrstwiththeheight-of-cutata

highlevel;thenmowagain2-3dayslaterwithalowerheight

setting.

MowingwithSharpBlades

Asharpbladecutscleanlyandwithouttearingorshredding

thegrassbladelikeadullblade.Tearingandshreddingcauses

thegrasstoturnbrownattheedgeswhichimpairsgrowth

andincreasessusceptibilitytodisease.

CleaningafterOperating

Toensureoptimumperformance,cleantheundersideofthe

mowerhousing.Ifresiduebuildsupinthemowerhousing,

cuttingperformancewilldecrease.

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