MTD 11A-439Q755 Owner's manual

Brand: MTD

Model: 11A-439Q755

Type: Owner's manual

Safety • Assembly • Operation • Tips &Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty

OF A O AL

Model435Ashown

21=inch Rotary Mower- Model Series 430

IMPORTANT

READ SAFETY RULES AND iNSTRUCTiONS CAREFULLY BEFORE OPERATION

Warning: Thisunitisequippedwithaninternalcombustionengineandshouldnotbeusedon or nearanyunimprovedforest-covered,brush-

coveredor grass-coveredlandunlesstheengine'sexhaustsystemisequippedwitha sparkarrestermeetingapplicablelocalor statelaws(if any).

If a sparkarresterisused,itshouldbemaintainedineffectiveworkingorderbytheoperator.IntheStateofCaliforniatheaboveisrequiredbylaw

(Section4442oftheCaliforniaPublicResourcesCode).Otherstatesmayhavesimilarlaws.Federallawsapplyonfederallands.A sparkarrester

forthemufflerisavailablethroughyournearestengineauthorizedservicedealeror contacttheservicedepartment,RO.Box361131Cleveland,

Ohio44136-0019.

PRINTEDIN U.S.A.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

FORMNO.770-10179G

12/12/2005

This Operator's Manual is an important part of your new lawn mower, it wiil help you assemble,

prepare, and maintain the unit for best performance. Please read and understand what it says.

Table of Contents

Slope Gauge ....................................................... 3

Safe Operation Practices ................................... 4

Setup and Adjustment ....................................... 6

Operating Your Lawn Mower .............................. 8

Maintaining Your Lawn Mower ......................... 10

Troubleshooting ................................................ 12

Safety Labels .................................................... 13

Parts List ........................................................... 14

Warranty ............................................ Back Cover

ThisOperatorsManualcoversarangeofproductspecificationsforvariousmodels.Characteristicsandfeaturesdiscussedand/orillustratedinthismanualmaynotbe

applicabletoall models.MTDLLCreservesthe rightto changeproductspecifications,designs,andequipmentwithoutnoticeand withoutincurringobligation.

Finding and Recording Model Number

BEFOREASSEMBLINGYOURNEW EQUIPMENT,please

locatethe model plateon the equipmentandcopy the

informationtothe sample modelplate providedtothe right.

Youcan locatethe modelplate by standingat theoperating

position andlookingdown atthe rear ofthe deck. Thisinfor-

mationwill be necessaryto usethe manufacturer'sweb site,

obtainassistancefromthe CustomerSupport Department,or

whencontacting anauthorizedservice dealer.

Model Number Serial Number

MTD LLC

P. O. BOX 361131

CLEVELAND,OH 44136

330-220-4683

,.wwwmtdpr°ductsc°m 800-800-7310

Customer Support

Please do IVOTreturn the unit to the retailer from which it was

purchased, without first contacting Customer Support.

Ifyou have difficultyassemblingthis productorhave anyquestions regardingthe controls, operation,or maintenanceof this

unit,youcanseek help fromthe experts.Choosefrom the options below:

• Visit www.mtdproducts.com. Clickonthe Service & Supportmenuoption.

Ser,,q,:° 8 Suppo_':

Product P.egistration

, , , , @i

• Phonea CustomerSupportRepresentativeat 1-800-800-7310.

• The engine manufactureris responsiblefor all engine-related issueswith regards to performance,power-rating,specifica-

tions,warranty and service. Pleasereferto the engine manufacturer'sOwner's/Operator's Manual,packedseparatelywith

your unit,for moreinformation.

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WARNING

Thissymbolpoints

out importantsafety

instructionswhich,if

notfollowed,could

endangerthe personal

i safetyand/or property

I ofyourselfand others.

Readandfollowall

instructionsinthis

manualbeforeat-

temptingto operate

i this machine.Failure

I to complywiththese

instructionsmay result

i inpersonalinjury.When

youseethis symbol.

i HEED ITS WARNING!

Your Responsibility

Restrictthe use

ofthis powermachine

to personswho read,

_understand

ano followthe warnings

and instructions

inthis manual

and on the machine.

WARNING: EngineExhaust,some of its constituents,andcertain vehiclecompo-

nentscontain or emit chemicals knownto Stateof Californiato cause cancerand

birth defectsor other reproductiveharm.

DANGER: Thismachinewas builtto beoperatedaccordingto the rulesfor safe operationin this

manual.As with anytype of powerequipment,carelessnessor erroronthe part ofthe operatorcan

result inseriousinjury.This machine iscapableof amputatinghands andfeet andthrowing objects.

Failureto observethe followingsafety instructionscould resultin serious injuryor death.

Children

Tragicaccidentscanoccurifoperatorisnotalertto presence

ofchildren.Childrenareoftenattractedtomowerand mowing

activity.Theydonot understandthedangers.Neverassume

thatchildrenwill remainwhereyoulastsawthem.

1. Keepchildrenoutofthe mowingareaand underwatchful

careofa responsibleadultotherthanthe operator.

2. Bealertandturnmoweroffif achildentersthearea.

3. Beforeandwhilemovingbackwards,lookbehindanddown

forsmallchildren.

4. Useextremecarewhenapproachingblindcorners,

doorways,shrubs,trees,orotherobjectsthatmayobscure

yourvisionofachild whomayrunintothe mower.

5. Keepchildrenawayfromhotor runningengines.Theycan

sufferburnsfroma hotmuffler.

6. Neverallowchildrenunder14yearsoldto operateapower

mower.Children14yearsoldandovershouldreadand

understandoperationinstructionsandsafetyrulesinthis

manualandshouldbetrainedandsupervisedbyaparent.

General Operation

1. Readthis operator'smanualcarefullyin its entiretybefore

attemptingtoassemblethismachine.Read,understand,

andfollowall instructionsonthe machineandin the

manual(s)beforeoperation.Becompletelyfamiliarwith

thecontrolsandthe properuseofthis machinebefore

operatingit. Keepthis manualina safeplaceforfuture

andregularreferenceandfor orderingreplacementparts.

2. Thismachineisa precisionpieceof powerequipment,

nota plaything.Therefore,exerciseextremecautionat all

times.Yourunithas beendesignedto performonejob: to

mowgrass.Do notuseit foranyotherpurpose.

3. Neverallow childrenunder14yearsoldto operatethis

machine.Children14yearsoldand overshouldreadand

understandthe instructionsinthismanualandshould

betrainedand supervisedby a parent.Onlyresponsible

individualswhoarefamiliarwiththeserulesofsafe

operationshouldbeallowedto usethismachine.

4. Thoroughlyinspectthe areawherethe equipmentisto

beused.Removeall stones,sticks,wire,bones,toys

andotherforeignobjects,whichcouldbetrippedoveror

pickedupandthrownbythe blade.Thrownobjectscan

causeseriouspersonalinjury.Planyourmowingpattern

toavoiddischargeofmaterialtowardroads,sidewalks,

bystandersandthe like.Also,avoiddischargingmaterial

againsta wallor obstruction,whichmaycausedischarged

materialto ricochetbacktowardthe operator.

5. Tohelpavoidbladecontactorathrownobjectinjury,

stayinoperatorzonebehindhandlesand keepchildren,

bystanders,helpersandpetsatleast75feetfrom mower

whileit is inoperation.Stopmachineifanyoneenters

area.

6. Alwayswearsafetyglassesor safetygogglesduringopera-

tionandwhile performinganadjustmentor repairtoprotect

youreyes.Thrownobjectswhichricochetcancauseserious

injurytothe eyes.

7. Wearsturdy,rough-soledworkshoesand close-fitting

slacksandshirts. Shirtsandpantsthatcoverthe armsand

legsandsteel-toedshoesarerecommended.Neveroperate

thismachineinbarefeet,sandals,slipperyor light-weight

(e.g.canvas)shoes.

8. Donotputhandsorfeet nearrotatingpartsor undercutting

deck.Contactwithbladecanamputatehandsandfeet.

9. Amissingor damageddischargecovercancause blade

contactor thrownobjectinjuries.

10.Manyinjuriesoccurasa resultofthe mowerbeingpulled

overthefoot duringafall causedby slippingor tripping.

Do notholdontothe mowerifyouarefalling;releasethe

handleimmediately.

11.Neverpullthe mowerbacktowardyouwhileyouare

walking.Ifyoumustbackthemowerawayfromawallor

obstructionfirstlookdownand behindtoavoidtrippingand

thenfollowthesesteps:

a. Stepbackfrommowertofully extendyourarms.

b. Besureyouarewellbalancedwithsurefooting.

c. Pullthe mowerbackslowly,no morethanhalfway

towardyou.

d. Repeatthesestepsas needed.

12.Do notoperatethe mowerwhileunderthe influenceof

alcoholordrugs.

13.Do notengagetheself-propelledmechanismon unitsso

equippedwhilestartingengine.

14.Thebladecontrolhandleisasafetydevice.Neverattempt

tobypassitsoperation.Doingso makesthe safetydevice

inoperativeandmayresultin personalinjurythrough

contactwiththe rotatingblade.Thebladecontrolhandle

mustoperateeasilyin bothdirectionsandautomatically

returntothe disengagedpositionwhenreleased.

15.Neveroperatethe mowerinwet grass.Alwaysbesureof

yourfooting. A slipand fallcancauseseriouspersonal

injury.If youfeelyouarelosingyourfooting,releasethe

bladecontrolhandleimmediatelyandthe bladewillstop

rotatingwithinthreeseconds.

16.Mowonlyin daylightor goodartificiallight.Walk,neverrun.

17.Stopthe bladewhencrossinggraveldrives,walksor roads.

18.If theequipmentshouldstartto vibrateabnormally,stopthe

engineandcheckimmediatelyfor the cause.Vibrationis

generallya warningoftrouble.

19.Shuttheengineoff andwait untilthe bladecomesto a

completestopbeforeremovingthe grasscatcheror unclog-

ging thechute.

The cuttingbladecontinuesto rotatefor a fewsecondsafter

the engineisshutoff. Neverplaceany partofthe bodyin

the bladearea untilyouaresurethe bladehasstopped

rotating.

20. Neveroperatemowerwithoutpropertrail shield,discharge

cover,grasscatcher,bladecontrolhandleor othersafety

protectivedevicesin placeand working.Neveroperate

mowerwithdamagedsafetydevices.Failuretodo socan

resultin personalinjury.

21. Mufflerandenginebecomehotandcan causeaburn.Do

nottouch.

22.Only usepartsandaccessoriesmadeforthismachineby

manufacturer.Failuretodo socanresultinpersonalinjury.

23. Ifsituationsoccurwhicharenotcoveredin thismanual,

usecareand goodjudgment.Contactyourdealerfor

assistance.Telephone1-800-800-7310forthe nameofyour

nearestdealer.

Slope Operation

Slopesarea majorfactorrelatedto slipandfallaccidents,which

can resultinsevereinjury.Operationonslopesrequiresextra

caution.Ifyoufeeluneasyon aslope,do notmowit.Foryour

safety,usetheslopegaugeincludedaspartofthis manualto

measureslopesbeforeoperatingthisunitonaslopedor hilly

area.Iftheslopeisgreaterthan15degrees,donot mowit.

Do:

1. Mowacrossthefaceofslopes;neverupanddown.Exercise

extremecautionwhenchangingdirectiononslopes.

2. Watchfor holes,ruts,rocks, hiddenobjects,or bumpswhich

can causeyouto slipor trip.Tallgrasscanhideobstacles.

3. Alwaysbesureofyourfooting.A slip andfall cancause

seriouspersonalinjury.If youfeelyouarelosingyour

balance,releasethe bladecontrolhandleimmediately,and

the bladewill stoprotatingwithin3seconds.

Do Not:

1. Donot mowneardrop-offs,ditchesorembankments,you

could loseyourfootingorbalance.

2. Donot mowslopesgreaterthan 15degreesasshownon

the slopegauge.

3. Donot mowon wetgrass.Unstablefootingcouldcause

slipping.

Service

Safe HandlingOf Gasoline:

1. To avoidpersonalinjury orpropertydamageuseextreme

care inhandlinggasoline.Gasolineisextremelyflammable

andthevaporsareexplosive.Seriouspersonalinjurycan

occurwhengasolineisspilledonyourselforyourclothes,

whichcanignite.

2. Washyourskin andchangeclothesimmediately.

3. Useonlyanapprovedgasolinecontainer.

4. Neverfillcontainersinsidea vehicleoron atruckor trailer

bedwitha plasticliner.Alwaysplacecontainersonthe

groundawayfromyourvehiclebeforefilling.

5. Removegas-poweredequipmentfromthe truckortrailer

andrefuelit onthe ground.Ifthisis notpossible,thenrefuel

suchequipmentonatrailerwitha portablecontainer,rather

thanfroma gasolinedispensernozzle.

6. Keepthe nozzlein contactwiththe rimofthefueltank or

containeropeningat alltimesuntilfuelingis complete.Do

notuseanozzlelock-opendevice.

7. Extinguishallcigarettes,cigars,pipesand othersources

ofignition.

8. Neverfuel machineindoorbecauseflammablevaporswill

accumulatein thearea.

9. Neverremovegascap oradd fuelwhileengineishot or

running. Allowengineto coolatleasttwominutesbefore

refueling.

10.Neveroverfillfueltank. Filltankto nomorethanY2inch

belowbottomoffiller neckto provideforfuelexpansion.

11.Replacegasolinecapandtightensecurely.

12.If gasolineis spilled,wipeitoff theengineand equipment.

Moveunittoanotherarea.Wait5minutesbeforestarting

engine.

13.Neverstorethemachineorfuel containernearanopen

flame,sparkor pilotlightas ona waterheater,space

heater,furnace,clothesdryeror othergasappliances.

14.Toreducefire hazard,keepmowerfreeofgrass,leaves,

orother debrisbuild-up.Cleanupoil orfuelspillageand

removeanyfuel soakeddebris.

15.Allowamowertocoolat least5 minutesbeforestoring.

GeneralService:

1. Neverrunanengineindoorsorin apoorlyventilatedarea.

Engineexhaustcontainscarbonmonoxide,anodorlessand

deadlygas.

2. Beforecleaning,repairing,or inspecting,makecertainthe

bladeandall movingpartshavestopped.Disconnectthe

sparkplugwireandgroundagainstthe engineto prevent

unintendedstarting.

3. Checkthe bladeandenginemountingboltsatfrequent

intervalsfor propertightness.Also,visuallyinspectbladefor

damage(e.g.,bent,cracked,worn)Replacebladewiththe

originalequipmentmanufacture's(O.E.M.)bladeonly,listed

inthismanual."Useof partswhichdo notmeetthe original

equipmentspecificationsmayleadto improperperformance

andcompromisesafety!"

4. Mowerbladesaresharpandcancut.Wrapthebladeor wear

gloves,anduseextracautionwhenservicingthem.

5. Keepallnuts,bolts,andscrewstightto besurethe equip-

mentis insafeworkingcondition.

6. Nevertamperwithsafetydevices.Checktheirproperopera-

tionregularly.

7. Afterstrikingaforeignobject,stopthe engine,discon-

nectthesparkplugwireandgroundagainsttheengine.

Thoroughlyinspectthe mowerforanydamage.Repairthe

damagebeforestartingandoperatingthemower.

8. Neverattemptto makeawheelor cuttingheightadjustment

whiletheengineis running.

9. Grasscatchercomponents,dischargecover,andtrail

shieldaresubjecttowear anddamagewhichcould expose

movingpartsor allowobjectsto bethrown.Forsafety

protection,frequentlycheckcomponentsandreplaceim-

mediatelywithoriginalequipmentmanufacturer's(O.E.M.)

partsonly,listedinthis manual."Useofpartswhich do

notmeetthe originalequipmentspecificationsmayleadto

improperperformanceandcompromisesafety!"

10.Do notchangetheenginegovernorsettingor over-revthe

engine.Thegovernorcontrolsthe maximumsafeoperating

speedoftheengine.

11.Maintainor replacesafetylabels,asnecessary.

12.Observeproperdisposallawsandregulations.Improper

disposaloffluidsand materialscanharmtheenvironment.

Operation

WARNING

Thissymbol points

out importantsafety

instructions,which if

notfollowed,could

endangerthe personal

safety and/or property

of yourselfand others.

Readand followall

instructions inthis man-

ual beforeattemptingto

operatethis machine.

Failureto comply with

these instructionsmay

result inpersonalinjury.

Whenyou seethis

symbol.

HEED IT'S WARNING!

YourResponsibility

Restrictthe use

of this powermachine

to personswho read.

understand

and followthe warnings

and instructions

in this manua

and onthe machine.

Standbehindthe mower

asifyou weregoingto

operateit. Yourright hand

i correspondsto the right

sideofthe mower;your

lefthandcorrespondsto

the leftsideof the mower.

Makesureto routecable

outsidethe lowerhandle.

Donot crimpcablewhile

liftingthe handleup.

i I[vlPORTANT

i Thisunit isshippedwith-

out gasoline oroilinthe

engine.Fillup gasoline

and oUas instructedin

the accompanying engine

manualBEFOREoperat-

ingyour mower.

Figure3-1: Unfoldhandleandtightenhardware.

WingNuts(2)

Figure3-2:Securelowerhandleto mountingbrackets.

ThisOperatorsManualcoversa rangeofproduct

specificationsforvariousmodels.Characteristicsandfea-

turesdiscussedand/orillustratedinthis manualmaynot

beapplicabletoall models.MTDLLCreservesthe right

tochangeproductspecifications,designs,andequipment

withoutnoticeandwithoutincurringobligation.

1. Removeanypackingmaterialwhichmaybebetween

upperandlowerhandles.

a. Pullupand backon upperhandleasshownin

Figure3-1.Makecertainthelowerhandleisseated

securelyintothehandlemountingbrackets.

b. Tightenstarknobssecuringupperhandleto lower

handle,Figure3-1.Makesurethateachcarriage

boltisseatedproperlyin thehandle.

2. Locatethehairpinclipon theweldpinon eachside

lowerhandle.

Removehairpinclipfromthis hole.Usinga pair

ofpliers,inserthairpinclipintothe holeon pin

closesttothebracket,Figure3-2.Repeaton other

side.

b. Inserta carriageboltfromthehardwarepackinto

theupperholeonthehandlemountingbracket,

Figure3-2.Securewithone plasticwingnut,also

includedthehardwarepack.Repeaton otherside.

Theropeguideisattachedtotherightsideofthe

upperhandle.Loosenthewingnutwhichsecuresthe

ropeguide,Figure3-3.

a. Holdbladecontrolhandleagainstupperhandle.

b. Pullstarterropeoutoftheengine.Releaseblade

controlhandle.

c. Slipstarterropeintoropeguide.

d. Tightenwingnut.

Insertpostoncabletiesintoholesprovidedon the

lowerhandle.Pullcabletietightandtrimexcess,

Figure3-4.

\,\

Figure3-3:Pullrecoilstarterthroughropeguideandtighten.

Figure3-4:Securecabletohandleusingcableties.

5. f--

Followstepsbelowtoassemblethegrasscatcher

(if needed).Makecertainbagisturnedrightside

outbeforeassembling(warninglabelwill beonthe

outside).

a. Placebagoverframesothat itsblackplasticside

is atthebottom.

b. Slip plasticchannelofgrassbagoverhooksonthe

frame,Figure3-5.All theplasticchannelsexcept

centertopof bagattachfromoutsideofbag.

c. Attachcentertopofbagfrominsideofbag.

6. Followstepsbelowtoattachthegrasscatcher:

a. Liftreardischargedoor.

b. Placegrasscatcheron thepivotrod.Letgo

ofdischargedoorsothat itrestson thegrass

catcher,Figure3-6.

7. Yourmoweris shippedasa mulcher.Toconvertto

sidedischarge,makesuregrasscatcherisoff ofthe

unitandreardischargedoorisclosed.

a. On thesideofthemower,liftthemulchingplug.

b. Slidechutehooksunderhingepinon mulching

plugassembly.Lowersidemulchingplug,Figure

3-7.Donotremovesidemulchingplugatanytime,

evenwhenyouarenotmulching.

_ WARNING:Neveroperate mowerunless the

hookson the grass catcherare firmly seated

on the pivot rod and the rear discharge door rests

firmly againsttop of thegrass catcher.

Adjustments

An adjustingplateandthumbleverateachwheel

providescuttingheightadjustment.

Figure3-5:Assemblethegrasscatcher.

1. Depresslevertowardswheel.

2. Moveittoanyone ofthepositionsfordesiredcutting

height,Figure3-8. Makesurethateachwheelis

positionedatthesameheight.

3. Releaselevertowardsmowerdeck.

Figure3-6:Attachthegrasscatcher.

J /

Figure3-8:Useadjustmentleverstochangeheight.

Figure3-7:Liftmulchplugandinstallsidedischargechute.

Setupand

ustment

Never operate

mowerw thoutthe

mulching plug, the

grass catcher, or

the discharge chute

properly insialledl

CUTTING HEIGHT

_Jlwheelsmustbe

positionedatthesame

height,

i_iii_iI_ iiiiii_ii__i_: i_

i Thebladecontrolisa

i safetydevice.DONOT

i bypass itsoperations.

i Useextremecarewhen

handling gasoline.

Gasolineisextremely

flammable andthe vapors

i areexplosive.Neverfuel

the machineindoorsor

i whilethe engineishot

or running.Extinguish

c=garettes,c=gars,p=pes

i and othersources of

i ignition,

i Keephandsand feet

awayfrom the chutearea

il on cuttingdeck. Referto

warninglabelon the unit.

Know Your Lawn Mower

_=======BladeControl

RecoilStarter======__

GrassCatcher======_

CuttingHeightAdjustment

Levers(frontandrear,for

eachwheel)

MulchPlug

SideDischargeChute

Figure4-1:Themaincomponentsonthe mower.(Model435Ashown)

Nowthatyouhavesetupyourlawnmower,itsimportantto

Blade Control

Thebladecontrolisattachedtothe upperhandleof

themower.Depressand squeezeitagainsttheupper

handletooperatetheunit. Releaseittostopengineand

blade.

,_b WARNING:Thisbladecontrolisa safety

device. Neverattempt to bypass itsopera-

tions.

Cutting Height Adjustment Levers

Oneadjustmentleverislocatedat eachwheelandis

usedtoadjustthecuttingheight.All fourwheelsmust

bepositionedatthe sameheighttoensurea uniform

cut.

Mulch Plug

Themulchplugisusedonlyformulchingpurposes.

Insteadofcollectingthegrassclippingsina grass

catcher,somemowermodelshavetheoptionof

recirculatingtheclippingsbacktothelawn.Thisis

calledmulching.

becomeaquaintedwith itscontrolsandfeatures.

Recoil Starter

Therecoilstarteris attachedtotherightupperhandle.

Standbehindtheunitand pullthe recoilstarterropeto

startthe unit.

Gas and Oil Fill-Up

Referto the enginemanualfor instructions.

1. Checkoillevelandaddoil if necessary.Followengine

manualforthis.

2. Servicetheenginewithgasolineasinstructedinthe

enginemanual.

,_i WARNING:Useextreme when

care

handling

gasoline. Gasolineisextremely flammable

and thevapors are explosive. Neverfuel the machine

indoorsor while the engine ishot or running. Extin-

guish cigarettes, cigars, pipes andother sources of

ignition.

w w

Starting Engine

,_ WARNING:Besureno one otherthan the

operatorisstandingnear the lawnmower

whilestartingengineor operating mower.Never

runengineindoorsor in enclosed,poorly ventilated

areas.Engine exhaustcontainscarbon monoxide,an

odorlessand deadly gas. Keephands,feet, hairand

looseclothing awayfrom any movingpartson engine

and lawnmower.

Follow theset of instructionspertainingto your unit.

Referto engine manualfor helpwith theengine.

Starting the 435 Mower:

1. Pushprimerthreetimes.Waitabouttwoseconds

betweeneachpush,Figure4-2.Intemperature

around550For below,primefive times.Donotprime

to restarta warmengine.

2. Standingbehindthe mower,squeezethebladecontrol

againstupperhandle,Figure4-2.

3. Holdingthesetwo handlestogetherfirmly,grasprecoil

starterhandleand pullropeoutwitha rapid,continu-

ous,fullarmstroke,Figure4-2.Keepinga firmgripon

thestarterhandle,letthe roperewindslowly.Repeat

untilenginecranks.Letthe roperewindeachtime

slowly.

Starting the 439 Mower:

1. Placethefuelvalveleverfoundontheleft sideofthe

engineintotheON(OPEN)position,Figure4-3.

2. Movethechokeleverall thewaybackwardintothe

chokeposition.

3. Standingbehindthe mower,squeezethebladecontrol

againstupperhandle,Figure4-3.Thechokewillnow

begintoslowlyreturntotheoff chokepositionafter

activatingthe bladecontrol.Therefore,quicklymove

ontostepfourbelow.

4. Holdingthesetwo handlestogetherfirmly,grasprecoil

starterhandleand pullropeoutwitha rapid,continu-

ous,fullarmstroke,Figure4-3.Keepinga firmgripon

thestarterhandlelettheroperewindslowly.Repeat

untilenginecranks.Letthe roperewindeachtime

slowly.

,_ WARNING:Wait for the blade to stop com-

pletelybefore peforminganywork on the

mower or to removethe grass catcher.

Stopping Engine

1. Releasebladecontroltostoptheengineand blade.

2. Disconnectsparkplugwirefromsparkplugand

groundagainsttheengine.

UsingYour Lawn Mower

Besurelawnisclearof stones,sticks,wire,or other

objectswhichcoulddamagelawnmowerorengine.

Suchobjectscouldbe accidentlythrownbythemower

in anydirectionandcauseseriouspersonalinjurytothe

operatorandothers.

Figure4-2:Startingthe435Amower.

Figure4-3:Startingthe439Qmower.

_ ARNING:ifyou strikea foreign object,

stopthe engine.Removewire from the spark

plug,thoroughly inspectmower for anydamage,

and repair damagebefore restarting and operating.

Extensive vibration of mowerduring operation isan

indicationof damage.The unit should be promptly

inspectedand repaired.

Using as Mulcher

Formulchinggrass,removethegrasscatcherandside

dischargechutefromthemower.Foreffectivemulching,

do notcutwetgrass.If thegrasshasbeenallowedto

growin excessof fourinches,mulchingisnotrecom-

mended.Usethegrasscatchertobagclippingsinstead.

Using Grass Catcher

Youcanusethegrasscatchertocollectclippingswhile

youareoperatingthemower.Refertosetupsectionfor

instructionson attachingthegrasscatcher.

WARNING

Theoperationof anylawn

mowercanresult inforeign

objectsbeing thrown into

the eyes,whichcandamage

your eyes severely.Always

wearsafety glasseswhile

operating the moweror

whileperformingany

adjustments or repairson it

Besure no oneotherthan

the operatorisstanding

nearthe Jawnmowerwhile

starting engineor operatinc

mower.Never run engine

indoorsor inenclosed,

poorlyventilated areas.

Engineexhaustcontains

carbonmonoxide,an

odorless and deadlygas.

Keephands, feet, hair and

looseclothingawayfrom

any moving partson engine

and lawnmower.

Neveroperateyourmower

without either the reardoor

or the entire grass catcher

assembly firmly secured.

disconnect sparkplug,

and groundagainstengine

before performinganytype

of maintenanceonyour

machine.

Do not use a pressure

washerorgardenhoseto

clean your unit. Thesemay

causedamagetoelectdc

CompOnents,spindles;

pulleys, bearings,or the

enginel Theuseof water

Figure5-1:Areasoflubrication(model435 shown)

General Recommendations

* Alwaysobservesafetyruleswhenperforming

anymaintenance.

, Thewarrantyon thislawnmowerdoesnotcover

itemsthathavebeensubjectedtooperatorabuse

ornegligence.Toreceivefullvaluefromwarranty,

operatormustmaintainthelawnmoweras

instructedhere.

• Changingofengine-governedspeedwillvoid

enginewarranty.

• Alladjustmentsshouldbecheckedat leastonce

eachseason.

• Periodicallycheckallfastenersand makesurethese

aretight.

_IIL ARNING:Alwaysstopengine,disconnect

sparkplug,and groundagainst engine

before performinganytype of maintenanceon your

machine.

Deck Care

Cleanundersideofthe mowerdeckaftereachuseto

preventbuild-upofgrassclippingsorotherdebris.

1. Disconnectsparkplugwire.Draingasolinefromlawn

mower,or placea pieceof plasticunderthegascap.

2. Tipmowersothat itrestsonthe housing.Keepthe

sidewiththeaircleanerfacingup.Holdmowerfirmly.

_ ARNING:Nevertip the mowermorethan 90°

inany direction and do not leavethemower

tipped for any length of time. Oil can drainintothe

upper partof the enginecausinga startingproblem.

3. Scrapeandcleantheundersideofthedeckwitha

suitabletool.Donotspraywithwater.

4. Putthemowerbackonitswheelsontheground.If

youhadputplasticunderthegascapearlier,make

sureto removeitnow.

Engine Care

A listofkeyenginemaintenancejobsrequiredforgood

performancebythemowerisgivenbelow.Followthe

accompanyingenginemanualforadetailedlistand

instructions.

1. Maintainoil levelasinstructedinenginemanual.

2. Serviceaircleanerevery25 hoursundernormal

conditions.Cleaneveryfewhoursunderextremely

dustyconditions.Poorengineperformanceand

floodingusuallyindicatesthattheaircleanershould

beserviced.Toservicetheaircleaner,refertothe

enginemanual.

3. Cleansparkplugand resetthegaponcea season.

Sparkplugreplacementisrecommendedatthestart

ofeachmowingseason.Checkenginemanualfor

correctplugtypeand gapspecifications.

4. Cleanengineregularlywitha clothorbrush.Keepthe

coolingsystem(blowerhousingarea)cleantopermit

properaircirculation.Removeall grass,dirtand

combustibledebrisfrommufflerarea.

Lubrication

• Lubricatepivotpointson thebladecontrolatleast

oncea seasonwithlightoil.Thebladecontrolmust

operatefreelyinbothdirections,Figure5-1.

• Lubricatethewheelsatleastoncea seasonwith

lightoil (ormotoroil). If wheelsareremovedforany

reason,lubricatesurfaceofthepivotarmandinner

surfaceof thewheelwithlightoil,Figure5-1.

• Lubricatethetorsionspringandpivotpointonthe

reardischargedoorandsidemulchplugperiodically

withlightoil topreventrust,Figure5-1.

• Followtheaccompanyingenginemanualforlubrica-

tionscheduleandinstructionforenginelubrication.

Blade Care

,_IL WARNING:Whenremovingthe cutting blade

forsharpeningor replacement, protectyour

handswitha pairof heavygloves or usea heavyrag

to holdthe blade.

Periodicallyinspectthebladeadapterforcracks,

especiallyif youstrikea foreignobject.Replacewhen

necessary.Followthe stepsbelowforbladeservice.

1. Disconnectsparkplugwirefromsparkplug.Turn

moweron itssidemakingsurethattheairfilterand

thecarburetorareup.

2. Removetheboltandthe bladebellsupportwhich

holdthebladeand thebladeadaptertotheengine

crankshaft,Figure5-2.

3. Removebladeandadapterfromthecrankshaft,

Figure5-2.

4. Thebladecanbe sharpenedwitha fileor on a grind-

ingwheel.Donotattempttosharpenthebladewhile

itisstillon themower.Whensharpeningtheblade,

followtheoriginalangleofgrind.Grindeachcutting

edgeequallytokeepthebladebalanced.

5. Removebladefromtheadapterfortestingbalance.

Balancethebladeona roundshaftscrewdriverto

check.Removemetalfromtheheavysideuntilit

balancesevenly.

_iL ARNING:An unbalancedblade will cause

excessivevibrationwhenrotating at high

speeds,it may causedamageto mowerand could

break causingpersonalinjury.

6. Lubricatetheenginecrankshaftandtheinnersurface

ofthebladeadapterwithlightoil.Slidetheblade

adapterontotheenginecrankshaft.

7. Placethebladeon theadaptersuchthattheside

oftheblademarked"Bottom"(orwithpartnumber)

facesthegroundwhenthemowerisintheoperating

position.Makesurethatthebladeisalignedand

seatedon thebladeadapterflanges.

8. Placebladebellsupportonthe blade.Alignnotches

on thebladebell supportwith smallholesinblade.

9. Replacehexboltandtightenhexboltto torque:450

in.Ibs.rain.,600 in.Ibs.max.

Toensuresafeoperationofyourmower,periodically

checkthebladeboltforcorrecttorque.

Replacing Rear Flap

1. Toremoverearflap,cutoff theflat endofthewirerod

whichsecuresitto thedeck,Figure5-3.

2. Attachthenewflapandnewrodto deck,bendingthe

endsofthenewrodovertosecuretodeck.

Figure5-2:Removethebolt,support,andadaptertoaccess

theblade.

Figure5-3:Cutwiretoremoverearflap.

Off-Season Storage

Thefollowingstepsshouldbetakento prepareyour

lawnmowerforstorage.

* Cleanandlubricatemowerthoroughlyasdescribed

inthe lubricationinstructions.

* Donotusea pressurewasherorgardenhoseto

cleanyourunit.

* Refertoenginemanualforcorrectengine

storageinstructions.

* Coatmower'scuttingbladewithchassisgreaseto

preventrusting.

* Storemowerina dry,cleanarea.Donotstorenext

tocorrosivematerials,suchas fertilizer.

Whenstoringanytypeof powerequipmentina poorly

ventilatedor metalstorageshed,careshouldbetaken

torust-prooftheequipment.Usinga lightoil or silicone,

coattheequipment,especiallycablesandall moving

partsofyourlawnmowerbeforestorage.

Maintaining

You

WARNING

Whenremoving the cutting

bladefor sharpeningor

replacement, protectyour

handswitha pairofheavy

glovesoruse a heavy rag

to holdthe blade,

Anunbalancedbladewill

causeexcessivevibration

whenrotating at high

speeds, it maycause dam-

age to mower,and could

breakcausingpersonal

injury,

_iiii _ ii _ _ i _ _i _ i

i i i ¸ ! !

i_ i_ _i!: _ i ii _ii__ii_I iiiii_

Problem Cause Remedy

Engine fails to Start i adecontroldisengagedl b!adecontro!,

21 sparkplugWiredisconnected• connect wiretosparkp!ug•

31 FueltankemptyOrStalefuel• Ell!tankWithclean,!reshgasoline•

4. Enginenot prreed. 4. Primeengineasinstructedin 'fOperat,

ingyour LawnMowei!I,

5: Faultysparkpug 5, Clean,adjustgap,or replace.

6. BloCkedfuel linel 6, cieanfueliinel

7: Engineflooded. 7: Wait afew minutesto restart,but do

I netprime:

Enginerunserratic 1. Sparkplugwireloose.

2. Blockedfuel lineor stalefuel.

3. Ventingascap plugged.

4. Wateror dirt infuel system.

5. Dirtyair cleaner.

6. Carburetorout ofadjustment.

1. Connectandtightensparkplugwire.

2. Cleanfuelline;filltank withclean,

freshgasoline.

3. Clearvent.

4. Drainfueltank. Refillwithfreshfuel.

5. Refertoenginemanual.

6. Refertoenginemanual.

Engine overheats 1 Engineoil levellow. 1. Fillcrankcasewith properoil.

2....A rfow restrcted I 2 Removebower housngandcean

3. Carburetornotadjustedpropery. 3• Refertoengne manua.

Occasional skips 1. Sparkpluggap tooclose. 1. Adjust gapto .030-inch.

(hesitates) at high speed 2. Carburetoridlemixtureadjustment 2. Referto enginemanual.

improperlyset.

Idles poorly 1. Sparkplugfouled,faultyor gaptoo wide. 1. Resetgapto .030-inchor replace

sparkpug.

2 Carburetorimproperlyadjusted 2. Refertoenginemanual•

. 3. Dirtyair cleaner• 3. Refertoenginemanual•

Excessive Vibration 1. Cuttingbladelooseor unbalanced. 1. Tightenbladeandadapter.Balance

blade.

2. Bentcuttingblade. 2. Seeanauthorizedservicedealer.

Mower will not mulch grass 1 Wetgrass• 1. Donot mowwhengrassiswet wait

untillatertocut.

2. Excessivelyhighgrass. 2. Mowonceata highcuttingheight,

then mowagainatdesirecJheightor

I makea narrowerCuttingpath.

, 3• Du bade. , 3• Sharpenor replaceblade•

Uneven cut 1. Wheelsnotpositionedcorrectly. 1. Placeallfour wheelsin same

heightposition.

2. Dullblade. 2. Sharpenor replaceblade.

ii i _iI_ii

1 731-04204 BailCover

2 746-1130 ControlCable40-inch

746-1137 ControlCable53-inch

3 726-0240 CableTie

4 664-04027 GrassBagAssembly

5 747-04080 GrassBagFrame

6 732-0700 TrailshieldWire

7 731-04998 Trailshield

8 747-04035 PivotRod

9 731-04134A RearDoor

10 687-02069 HeightAdj.BracketAssy- LH

687-02068 HeightAdj.BracketAssy- RH

11 787-01279 21-inchDeck

12 687-02099A Hgt.Adj.Assy- LH(7-inchWhl)

687-02100A Hgt.Adj.Assy- RH(7-inchWhl)

13 731-1506A FrontEndCover,21-inch

14 782-5002B FrontBaffle

15 748-04082 BladeAdapter

16 742-0741 21-inchMulchingBlade

17 736-0524B Bell BladeSupport

18 710-1257 HexBolt3/8-24x2.5long

19 731-04177 SideDischargeChute

20 712-04065 FlangeLockNut3/8-16

21 787-01290 HeightAdjustmentPlate

22 687-02076A PivotArmAssy- RH

687-02077A PivotArmAssy- LH

23 734-04086 Wheel7 x 1.8PinBar

24 738-0507B ShoulderScrew.5x .434

25 732-0404 SpringLever

26 720-0426 HeightAdjustKnob

27 710-0599 TT Screw1.4-20x .50

28 736-0270 BellWasher.265x .75x .062

29 710-0654A TTSeresScrew3.8-16x 1.00

30 687-02071A PivotArmAssy- RH

687-02070A PivotArmAssy- LH

31 732-04175 SpringLever

32 734-04087 Wheel8 x 1.8PinBar

33 710-1652 TTScrew1/4-20x .625

34 714-0104 Int.CotterPin.072dia.x 1.13Ig

35 787-01292 RearHandleBracket-RH

787-01291 RearHandleBracket-LH

36 710-0703 CarriageScrew1/4-20x.75

37 710-04371 ScrewHL1/4-15x 1.00

38 750-04162 Spacer

39 732-04090A TorsionSpring- RH

732-04089A TorsionSpring- LH

40 712-0397 WingNut

41 731-04150C RearBaffle

42 749-0928A LowerHandle

43 710-1174 CarriageBolt5/16-18x 2.0

44 720-04072 StarKnob

Parts List

To order replacement

parts,call

'800,.800q310

orvisitusO.

45 720-0279 HandleKnob the web at

46 710-1205 EyeBolt

47 749-1092A UpperHandle www.mtdproducts.com

48 747-1161A BladeControl(Bail)

49 7510042823 ShoulderScrew

50 731-04525 EngineShroud

51 17032A ChuteDeflectorAdapter

52 732-1014 TorsionSpring.290IDx 1.68

53 747-0710 HingePin

54 987-02055 MulchPlugAssembly

NOTE:Mowerfeatures/componentsvary by model. NOTall parts listed aboveand pictured onthe previous pageare

standard equipment.

MANUFACTURER'S LiMiTED WARRANTY FOR

ThelimitedwarrantysetforthbelowisgivenbyMTDLLCwithrespect

tonewmerchandisepurchasedandusedin theUnitedStates,its

possessionsandterritories.

"MTD"warrantsthisproductagainstdefectsinmaterialandworkman-

shipfora periodoftwo (2)yearscommencingonthedateoforiginal

purchaseandwill,at itsoption,repairor replace,freeofcharge,any

partfoundto bedefectiveinmaterialsorworkmanship.Thislimitedwar-

rantyshallonlyapplyifthisproducthasbeenoperatedand maintained

inaccordancewiththeOperator'sManualfurnishedwiththeproduct,

andhasnotbeensubjectto misuse,abuse,commercialuse,neglect,

accident,impropermaintenance,alteration,vandalism,theft,fire,water,

ordamagebecauseofotherperilor naturaldisaster.Damageresulting

fromthe installationor useofanypart,accessoryor attachmentnot

approvedby MTDforusewiththeproduct(s)coveredbythis manual

willvoidyourwarrantyastoanyresultingdamage.

Normalwearpartsarewarrantedto befreefromdefectsinmaterialand

workmanshipfora periodofthirty(30)daysfromthedateof purchase.

Normalwearpartsinclude,butare notlimitedto itemssuchas: batter-

ies,belts,blades,bladeadapters,grassbags,riderdeckwheels,seats,

snowthrowerskidshoes,shaveplates,augerspiralrubberandtires.

NOW TO OBTAINSERVICE: Warrantyservice isavailable,WITH

PROOFOF PURCHASE,throughyour localauthorized service

dealer.Tolocate the dealer in yourarea, check yourYellowPages,

or contact MTDLLCat RO. Box361131,Cleveland,Ohio 44136-

0019,or call 1-800-800-7310or 1-330-220-4683 or log on to our

Website at www.mtdproducts.com.

Thislimitedwarrantydoesnotprovidecoverageinthefollowingcases:

a. Theengineor componentpartsthereof.Theseitemsmaycarrya

separatemanufacturer'swarranty.Refertoapplicablemanufacturer's

warrantyfortermsandconditions.

b. Logsplitterpumps,valves,andcylindershavea separateoneyear

warranty.

c. Routinemaintenanceitemssuchaslubricants,filters,blade

sharpening,tune-ups,brakeadjustments,clutchadjustments,deck

adjustments,andnormaldeteriorationoftheexteriorfinishdueto

useor exposure.

d. Servicecompletedbysomeoneotherthananauthorizedservice

dealer.

e. MTDdoesnotextendanywarrantyforproductssoldor exported

outsideoftheUnitedStates,its possessionsandterritories,except

thosesoldthroughMTD'sauthorizedchannelsofexportdistribution.

f. ReplacementpartsthatarenotgenuineMTDparts.

g. Transportationchargesandservicecalls.

Noimpliedwarranty,includingany impliedwarrantyof mer-

chantabilityof fitness for a particular purpose,applies after the

applicable periodof expresswritten warranty aboveasto the

partsasidentified.Nootherexpresswarranty, whetherwritten or

oral, exceptas mentioned above,givenby anypersonor entity,

includinga dealeror retailer, withrespect to any product,shall

bindMTD.Duringthe periodof the warranty,the exclusiveremedy

isrepairor replacementof the productas setforth above.

Theprovisionsasset forth inthis warrantyprovidethesoleand

exclusiveremedy arising from the sale.MTDshallnot be liable

for incidentalor consequentiallossor damageincluding,without

limitation, expensesincurredfor substituteor replacementlawn

careservicesor for rentalexpensesto temporarily replacea

warranted product.

Somestatesdo notallowtheexclusionor limitationofincidentalor

consequentialdamages,or limitationsonhowlongan impliedwarranty

lasts,sotheaboveexclusionsor limitationsmaynotapplytoyou.

Innoeventshallrecoveryofanykindbegreaterthantheamountofthe

purchasepriceof theproductsold.Alterationof safetyfeaturesof

the product shallvoid this warranty. Youassumetheriskand liability

forloss,damage,or injurytoyouandyourpropertyand/ortoothersand

theirpropertyarisingoutofthemisuseor inabilitytousethe product.

Thislimitedwarrantyshallnotextendtoanyoneotherthantheoriginal

purchaserorto thepersonforwhomitwas purchasedasa gift.

HOWSTATELAWRELATESTOTHISWARRANTY:This limited

warrantygivesyouspecificlegalrights,and youmayalsohaveother

rightswhichvaryfromstatetostate.

IMPORTANT:OwnermustpresentOriginalProofof Purchasetoobtain

warrantycoverage.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136=0019; Phone: 1=800=800=7310, 1=330=220=4683

MTD 11A-439Q755 Owner's manual

MTD 11A-439Q755 Owner's manual

MTD 11A-439Q755 Owner's manual

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