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
3
Kickerplate1
Installthekit.
4Mulchingmowerblade2Installthebladesandmower.
WARNING
Whilemaintenanceoradjustmentsarebeingmade,
someonecouldstarttheengine.Accidentalstarting
oftheenginecouldseriouslyinjureyouorother
bystanders.
Removethekeyfromtheignitionswitch,engage
parkingbrake,andpullthewiresoffthesparkplugs
beforeyoudoanymaintenance.Pushthewires
asidesotheydonotaccidentallycontactthespark
plugs.
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
1
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
1
Figure1
1.Existingdischargebafe
5.Installthemountinghardware,fromstep4,intothe
holesinthedeckwherethedischargebafewas
installed.
WARNING
Openholesinthemowerexposeyouand
otherstothrowndebriswhichcancause
severeinjury.
•Neveroperatethemowerwithouthardware
mountedinallholesinthemowerhousing.
•Installthehardwareinthemountingholes
whenyouremovethemulchingbafe.
2
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.
2

3
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
4.
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
5.
4.Tightenallhardware.
3

4
InstallingtheBladesand
Mower
Partsneededforthisprocedure:
2Mulchingmowerblade
Procedure
1.Installthebladeontothespindleshaft(Figure6).
Important:Thesailarea(curvedpart)ofthe
blademustbepointingupwardtowardtheinside
ofthemowertoensurepropercutting.
g028369
1
2
3
4
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.
4