MTD 520 Series User manual

Brand: MTD

Model: 520 Series

Category: Lawnmowers

Type: User manual

MTD 520 Series is suitable for mowing grass on various types of terrain, including lawns, fields, and slopes. It features a powerful engine and a durable cutting deck for efficient and precise cutting. The machine is equipped with safety features such as a blade control handle and a discharge cover to prevent injuries. Additionally, it has a self-propelled mechanism for easy maneuvering, adjustable cutting heights to suit different grass lengths, and a grass catcher for collecting clippings.

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

OF A O AL

22" Rotary Mower- Model Series 520

iMPORTANT

READ SAFETY RULES AND iNSTRUCTiONS CAREFULLY BEFORE OPERATION

Warning: Thisunitisequippedwithan internalcombustionengineandshouldnotbeusedon or nearanyunimprovedforest-covered,brush-

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

If a sparkarresterisused,it shouldbemaintainedineffectiveworkingorderbytheoperator.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.770-10349G

12/16/2005

This Operator's Manual is an important part of your new lawn mower, it will 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

Trouble Shooting .............................................. 12

Off-Season Storage and Safety Labels .......... 13

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

Finding and Recording Model Number

BEFOREYOU STARTASSEMBLING

YOURNEW EQUIPMENT,

please locatethe modelplate onthe equipmentand copythe

informationtothe sample modelplate providedtothe right.

Youcan locatethe modelplate by standingat theoperating

position andlookingdown atthe rear ofthe deck. This

informationwill be necessaryto usethemanufacturer'sweb

site and/or obtain assistancefrom the CustomerSupport

Departmentoran authorizedservice dealer.

Model Number

www.mtdproducts.com

Serial Number

MTD LLC

P.O. BOX 361131

CLEVELAND, OH 44136

330-220-4683

800=800=7310

Customer Support

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

purchased, without first contacting Customer Support.

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

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

1. Visit mtdproducts.com. Click on the Customer

Support menu option.

2. Phonea Customer Support Representative

at (800) 800-7310.

3. The engine manufacturer isresponsiblefor all engine-

relatedissueswithregards to performance,power-rating,

specifications,warranty andservice. Pleasereferto the

engine manufacturer'sOwner's/Operator'sManual, packed

separatelywith your unit,for more information.

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Sightandholdthis levelwith a verticaltree...

also

15°

RNING

This symbol points

i out important safety

instructionswhich, if

notfollowed, could

endangerthe personal

i safetyand/or property

I ofyourself and others.

Readand follow all

instructionsinthis man-

ualbeforeattempting to

operatethis machine.

Failureto complywith

these instructionsmay

i resultin personalinjury.

i When youseethis

_symbol.

HEED ITS WARNING

Your

Responsibility

Restrictthe use

i ofthis powermachine

i to personswho read,

understand

andfollow the warnings

and instructions

inthis manual

andon the machine.

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

nentscontain or emit chemicals knownto Stateof Californiato cause cancerand

birth defectsor other reproductiveharm.

DANGER: This machinewas 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 injury or death.

Children

Tragicaccidentscanoccurifoperatorisnotalertto presence

ofchildren.Childrenareoftenattractedtomowerand mowing

activity.Theydonot understandthe dangers.Neverassume

thatchildrenwill remainwhereyoulastsawthem.

1. Keepchildrenoutofthe mowingareaand underwatchful

careofa responsibleadultotherthanthe operator.

2. Bealertandturnmoweroffif achildentersthearea.

3. Beforeandwhilemovingbackwards,lookbehindanddown

forsmallchildren.

4. Useextremecarewhenapproachingblindcorners,

doorways,shrubs,trees,orotherobjectsthatmayobscure

yourvisionofa child whomayrunintothe mower.

5. Keepchildrenawayfromhotor runningengines.Theycan

sufferburnsfroma hotmuffler.

6. Neverallowchildrenunder14yearsoldto operateapower

mower.Children14yearsoldandovershouldreadand

understandoperationinstructionsandsafetyrulesinthis

manualandshouldbetrainedandsupervisedbyaparent.

General Operation

1. Readthisoperator'smanualcarefullyin its entiretybefore

attemptingtoassemblethismachine.Read,understand,

andfollowall instructionsonthe machineandin the

manual(s)beforeoperation.Becompletelyfamiliarwith

thecontrolsandthe properuseofthis machinebefore

operatingit. Keepthis manualin a 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,toysand

otherforeignobjectswhichcouldbetrippedoveror picked

upandthrownbythe blade.Thrownobjectscancause

seriouspersonalinjury.Planyourmowingpatternto avoid

dischargeof materialtowardroads,sidewalks,bystanders

andthe like.Also,avoiddischargingmaterialagainsta

wallorobstructionwhichmaycausedischargedmaterial

toricochetbacktowardtheoperator.

5. Tohelpavoidbladecontactorathrownobjectinjury,

stayinoperatorzonebehindhandlesandkeepchildren,

bystanders,helpers,andpetsat least75feet frommower

whileit is inoperation.Stopmachineifanyoneenters

area.

6. Alwayswearsafetyglassesor safetygogglesduringopera-

tionandwhile performinganadjustmentor repairtoprotect

youreyes.Thrownobjectswhich ricochetcancauseserious

injurytothe eyes.

7. Wearsturdy,rough-soledworkshoesandclose-fitting

slacksandshirts. Shirtsandpantsthatcoverthe armsand

legsandsteel-toedshoesarerecommended.Neveroperate

thismachineinbarefeet,sandals,slipperyor lightweight

(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.Ifyoumustbackthe mowerawayfromawallor

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 notengage theself-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. Aslipand fall cancauseseriouspersonal

injury.If youfeelyouarelosingyourfooting,releasethe

bladecontrolhandleimmediatelyandthe bladewillstop

rotatingwithinthreeseconds.

16.Mowonlyin daylightor goodartificiallight.Walk,neverrun.

17.Stopthe bladewhencrossinggraveldrives,walksor roads.

18.Iftheequipmentshouldstartto vibrateabnormally,stopthe

engineandcheckimmediatelyfor the cause.Vibrationis

generallya warningoftrouble.

19.Shutthe engineoff andwait untilthe bladecomesto a

completestop beforeremovingthe grasscatcheror unclog-

gingthechute.

The cuttingbladecontinuesto rotatefor afewsecondsafter

the engineisshutoff. Neverplaceany partofthe bodyin

the bladearea untilyouaresurethe bladehasstopped

rotating.

20. Neveroperatemowerwithoutpropertrailshield,discharge

cover,grasscatcher,bladecontrolhandle,or othersafety

protectivedevicesin placeand working.Neveroperate

mowerwithdamagedsafetydevices.Failuretodo socan

resultin personalinjury.

21. Mufflerandenginebecomehotandcan causeaburn.Do

nottouch.

22.Onlyusepartsandaccessoriesmadeforthismachineby

manufacturer.Failuretodo socanresultinpersonalinjury.

23. Ifsituationsoccurwhicharenotcoveredin thismanual,

usecareand goodjudgment.Contactyourdealerfor

assistance.Telephone1-800-800-7310forthe nameofyour

nearestdealer.

Slope Operation

Slopesareamajorfactorrelatedto slipandfallaccidentswhich

can resultinsevereinjury.Operationonslopesrequiresextra

caution.Ifyoufeeluneasyon aslope,do notmowit.Foryour

safety,usetheslopegaugeincludedaspartofthis manualto

measureslopesbeforeoperatingthisunitonaslopedor hilly

area.Iftheslopeisgreaterthan15degrees,donot mowit.

Do:

1. Mowacrossthe faceofslopes; neverup anddown.

Exerciseextremecautionwhenchangingdirectionon

slopes.

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

can causeyouto slipor trip.Tallgrasscanhideobstacles.

3. Alwaysbesureofyourfooting.A slip andfall cancause

seriouspersonalinjury.Ifyoufeelyouarelosingyour

balance,releasethe bladecontrolhandleimmediately,and

the bladewill stoprotatingwithin3seconds.

Do Not:

1. Donot mowneardrop-offs,ditchesorembankments,where

you couldloseyourfootingor balance.

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

notusea nozzlelock-opendevice.

7. Extinguishallcigarettes,cigars,pipesandothersources

ofignition.

8. Neverfuel machineindoorsbecauseflammablevaporswill

accumulatein thearea.

9. Neverremovegascap oraddfuelwhileengineishot or

running. Allowengineto coolatleasttwominutesbefore

refueling.

10.Neveroverfillfueltank. Filltankto nomorethanY2inch

belowbottomoffiller neckto provideforfuelexpansion.

11.Replacegasolinecapandtightensecurely.

12.Ifgasolineis spilled,wipeitoff theengineand equipment.

Moveunittoanotherarea.Wait5minutesbeforestarting

engine.

13.Neverstorethemachineorfuel containernearanopen

flame,sparkor pilotlightasona waterheater,space

heater,furnace,clothesdryer,orothergas appliances.

14.Toreducefire hazard,keepmowerfreeofgrass,leaves,

orother debrisbuild-up.Cleanupoil orfuelspillageand

removeanyfuel soakeddebris.

15.Allowamowertocoolat least5 minutesbeforestoring.

GeneralService:

1. Neverrunanengineindoorsorin a poorlyventilatedarea.

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

damagebeforestartingandoperatingthe mower.

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 overspeedthe

engine.Thegovernorcontrolsthe maximumsafeoperating

speedoftheengine.

11.Maintainor replacesafetylabels,as necessary.

12.Observeproperdisposallawsandregulations.Improper

disposaloffluidsandmaterialscanharmtheenvironment.

Practices

WARNING

Thissymbol points

out importantsafety

instructionswhich, if

notfollowed,could

endangerthe personal

safety and/or property

of yourselfand others.

Readand followall

instructions inthis man-

ual beforeattemptingto

operatethis machine.

Failuretocomply with

these instructionsmay

result inpersonalinjury.

Whenyou see this

symbol.

HEED iTS WARNING

Your

Responsibility

Restrictthe use

ofthis powermachine

to personswho read,

understand

and follow the warnings

and instructions

inthis manual

and onthe machine.

_iiiii_ii_il_I_iii_ii_i_ _ _ _ i

Your moweris shi

with the handlein the

higher heightposition.

NOTEI EaChend of

the lowerhandlemust

beplaced in the same

relative positionl

WARNING

The chute retainer

mustbe removed and

disCardedbefore

operatngthe mower.

IMPORTANT

This unitis shipped

w thout gasolineor

oilin the engine: Fill

gasolineand oil

as instructedinthe

accompanyingengine

manualBEFORE

operatingyourmower.

Step 1

Forshippingpurposes,thechutedeflectoron your

mowerisheldinan uprightpositionbya retainer.

Removetheretaineras follows:

a. Push chutedeflectoruptowardsengine.Holding

deflectorin thisposition,removetheretainerand

discard.SeeStep1.

b. Lowerthechutedeflectorcarefullykeepingyour

fingersoutoftheway.

,_ WARNING: The chute retainer

must be removed and discarded

before operating the mower.

Performthefollowingsequenceforhandlesetup:

a. LifttheupperhandleupfromfoldedpositionAand

pullittoextendedpositionBfollowingthearrowin

Step2.Thehandleshouldclickintothisposition.

b. Makesurethecarriageboltis seatedproperly

in thehandle.Tightenwingnutssecuringupper

handletothelowerhandle

3. ifsatisfiedwith heightof handle,tightenwingnuts

attheendsofthelowerhandleshownin Step3.For

convenienceof operating,youmayadjustthehandle

heightbyremovingthewingnutsshownin Step3 and

removingthelowerhandle.

a. Positioneachhandlebracketstudintothetophole

in thelowerhandle.SeeStep3 inset.

b. Tightenthewingnuts.

4. Insertpostoncabletiesintoholesprovidedon the

lowerhandle.Pullcabletietightandtrimexcess.See

Step4.

Step 2

Step 3 Step 4

5. RopeguideSetupasfollowsin Step5:

a. Holdthebladecontrolagainsttheupperhandle.

b. Slowlypullstarterropeoutofengine.

c. Slipstarterropeintotheropeguide.Tightenrope

guidewingnut.

6. If notalreadyontheunit,installrearwheelsasfollows

in Step6:

a. Placerearofthemowerdeckon raisedblocks.

b. Removelocknutfrompivotarmassembly(on

selectmodels,thesemaybe includedseparately

ina plasticbag).

c. Slidewheel,withhollowsidein,ontopivotarm

andsecurewithlocknut.

d. Assembletheothersidein thesamemanner.

Eachwheelhasa heightadjustmentlevertochange

thecuttingheightofthe mower.

a. Depressheightadjustmentlevertowardswheel.

b. Slidelevertodesiredpositionfora changein

cuttingheight.SeeStep7.

c. Releaselevertowardsdeck.

Installmulchingbaffleonthe rightsideofthemower

followingthestepsbelow:

a. Lift upandholdtheside-dischargechutedeflector

andinsertbottomlip ofthemulchingbaffleinside

thechuteopeningSeeStep8.

b. Snaphooksd themulchingbaffleoverthehinge

pinofthechutedeflector.Thehooksmustsnap

intoplaceon thehingepin,lockingthemulching

bafflefirmlyontomower.Releasechutedeflector.

Step 5

r "l

Step 6

Step 8 Step 7

CUTTINGHEIGHT

Step 7

Allwheels must be

placedin the same

relativeposition.For

roughor unevenlawns,

movethe heightadjust-

mentleverto a higher

position.This will stop

scalping of grass.

MULCHING BAFFLE

Step8

Forproperassembly,

installbottom lipinside

chute opening before

placinghooks overthe

hingepin.

IMPORTANT

This unit isshipped

without gasolineor

oilin the engine. Fill

up gasolineand oil

as instructed inthe

accompanyingengine

manual BEFORE

operatingyour mower.

WARNING

The blade control

mechanism is a

safety device. Never

attempt to bypass its

operations.

I Useextreme care

when handling

gasoline.Gasoline is

extremely flammable

and the vapors are

explosive. Never fuel

the machine indoors

or while the engine

is hot or running.

Extinguish cigarettes,

cigars, pipes and

other sources of

ignition.

Keep hands and feet

away from the chute

area on cutting deck.

Referto warning

label onthe unit.

Know Your Lawn Mower

Control

DriveControl

Recoil

OilFill/Dipstick

GasolineFiii

HeightAdjustment

Levers

Figure 1

Nowthatyouhavesetupyourlawnmowerforopera-

tion,getaquaintedwithits controlsandfeatures.These

aredescribedbelowandillustratedonthis page.This

knowledgewillallowyoutouseyournewequipmentto

itsfullestpotential.

Blade Control

Thebladecontrolisattachedtothe upperhandleof

themower.Depressand squeezeitagainsttheupper

handletooperatetheunit. Releaseittostopengineand

blade.

_ WARNING:This blade control mecha-

nism isa safetydevice. Neverattempt

to bypass itsoperations.

Drive Control

Thedrivecontrolislocatedontheundersideofthe

upperhandleand isusedtoengagethedrive.Squeeze

itagainsttheupperhandleto engagethedrive; release

ittoslowdownor stopmowerfrompropelling.See

Figure1.

Mulching Baffle

insteadofcollectingthegrassclippingsinthegrass

catcher,yourmowerhastheoptionof recirculatingthe

clippingsbacktothelawn.Removegrasscatcher(if

applicable),andoperatewiththemulchingbaffleonly

forthispurpose.

Cutting Height Adjustment Levers

Oneadjustmentleverislocatedon eachwheelandis

usedtoadjustthecuttingheight.All fourlevershaveto

beatthesamerelativepositiontoensurea uniformcut.

Recoil Starter

Therecoilstarterisattachedtotherightupperhandle.

Standbehindtheunitand pullthe recoilstarterropeto

startthe unit.

Gas and Oil Fill-Up

1. Checkoillevelandaddoil if necessary.Followengine

manualforthis.SeeFigure1abovefor locationofthe

oilfill.

2. Servicetheenginewithgasolineasinstructedinthe

enginemanual. SeeFigure1aboveforlocationof

gasfill.

_ ARNING:Useextremecarewhenhan-

dling gasoline.Gasolineis extremely

flammableand the vapors areexplosive.

Neverfuel the machine indoorsor while

the engine ishot or running. Extinguish

cigarettes, cigars, pipesand other

sources of ignition.

/i_k WARNING:The operationof any lawn if

mowercan result inforeign objects

being thrownintothe eyes,whichcan

damageyoureyesseverely.Always

wearsafetyglasseswhileoperating

the mower,or whileperforming any

adjustmentsor repairson it.

Starting Engine

WARNING:Besureno one otherthan

,__ theoperatorisstandingnearthe lawn

mowerwhilestartingengine or operat-

r ingmower.Neverrun engineindoors

orin enclosed,poorly ventilatedareas.

Engine exhaustcontainscarbon monox-

ide,an odorlessand deadly gas. Keep

hands, feet,hair and loose clothing

awayfrom any moving partson engine

and lawnmower. _.

Figure 2

1. Pushprimerthreetimes.Waitabouttwoseconds

betweeneachpush.SeeFigure2. Intemperature

around550For below,primefive times.Donotprime

to restarta warmengine.

2. Standingbehindthe mower,squeezethebladecontrol

againstupperhandle.SeeFigure2.

3. Holdingthesetwo handlestogetherfirmly,grasprecoil

starterhandleand pullropeoutwitha rapid,continu-

ous,fullarmstroke.SeeFigure2.Keepinga firm

grip onthestarterhandle,lettheroperewindslowly.

Repeatuntilenginecranks.Letthe roperewindeach

timeslowly.

Stopping Engine

1. Releasebladecontroltostoptheengineand blade.

2. Disconnectsparkplugwirefromsparkplugand

groundagainsttheengine.

Using Your Lawn Mower

Besurelawnisclearofstones,sticks,wire,orother

objectswhichcoulddamagelawnmoweror engine.

Suchobjectscouldbeaccidentlythrownbythemower

inanydirectionandcauseseriouspersonalinjurytothe

operatorandothers.

WARNING:If you strikeaforeign

object, stopthe engine.Remove

wire from thespark plug,thoroughly

inspectmowerfor anydamage,and

repairdamagebeforerestarting and

operating. Extensive vibration of

mower during operation isan indica-

tion of damage.The unit should be

promptlyinspectedand repaired.

__k ARNING:Waitfor the blade to stop

completelybeforedoing anywork

on the mower or to removethegrass

catcher.

1. Oncetheengineisrunning,squeezethedrive

controlagainsttheupperhandleto propelmower.

2. Forbest results,do notcut wetgrass.

3. Fora healthierlawn,nevercut offmorethanone-

thirdofthetotallengthofthegrass.

Using as Mulcher

Formulchinggrass,removethegrasscatcher(if

apllicable)andinstallmulchingbafflefollowinginstruc-

tionsonpage7.

1. Foreffectivemulching,do notcut wetgrass.

2. Newor thickgrassmayrequirea narrowercut.

Adjustgroundspeedaccordingtoconditionoflawn.

3. If thegrasshasbeenallowedto growinexcessof

4 inches,mulchingisnotrecommended.Usethe

grasscatchertobagclippingsinstead.

Mower

WARNING

The operation of any

lawn mower can result

inforeign objects

being thrown into

the eyes, whichcan

damage your eyes

severely. Always wear

safety glasseswhile

operating the mower,

or whileperforming

any adjustments or

repairs on it.

Be sureno one other

than the operator is

standing near the lawn

mower while starting

engine or operating

mower. Never run

engine indoorsor

n enclosed, poorly

ventilated areas. En-

gineexhaust contains

carbon monoxide, an

odorless and deadly

gas. Keep hands, feet,

hair and loose clothing

away from any moving

partson engine and

lawn mower.

Lubrication

WARNING

A vaysstopeng,"e;

disconnect spark

,plug; and ground

against engine before

c ean ng, ubr cat "g

ordoinganyk ndof

maintenance on your

machine:

Wedo notrecommend

the use of pressure

washersor garden

hoseto cleanyour

uniLThese maycause

damage to e ectriC

compOnentSspindles

pulleys;bearingS,or

the enginel The use

of water Willresult in

shorten edlife and

reduceSewiceability,

_iiiii}!

Figure 3

General Recommendations

1. Alwaysobservesafetyruleswhenperforming

anymaintenance.

2. Thewarrantyon thislawnmowerdoesnotcover

itemsthathavebeensubjectedtooperatorabuse

ornegligence.Toreceivefullvaluefromwarranty,

operatormustmaintainthelawnmoweras

instructedhere.

3. Changingofengine-governedspeedwillvoid

enginewarranty.

4. Alladjustmentsshouldbecheckedat leastonce

eachseason.

5. Periodicallycheckallfastenersand makesurethese

aretight.

__IL ARNING:Alwaysstop engine,

disconnect spark plug, and ground

against enginebeforecleaning,

lubricating or doing any kind of

maintenanceon your machine.

1. Lubricatepivotpointson thebladecontrolanddrive

controlatleastoncea seasonwithlightoil.These

controlsmustoperatefreelyinbothdirections.See

Figure3.

2. Lubricatethewheelsatleastoncea seasonwith

lightoil (ormotoroil). If wheelsareremovedforany

reason,lubricatesurfaceofthepivotarmandinner

surfaceof thewheelwithlightoil.SeeFigure3.

3. Lubricatethetorsionspringandpivotpointoneach

endofthesidemulchingplug/chutedeflectorperiodi-

callywithlightoil topreventrust.SeeFigure3.

4. Thetransmissionis pro-lubricatedand sealedatthe

factoryanddoesnotrequirelubrication.

5. Followtheaccompanyingenginemanualforlubrica-

tionscheduleandinstructionforenginelubrication.

Deck Care

1. Disconnectsparkplugwire.Draingasolinefromlawn

mower,or placea pieceof plasticunderthegascap.

2. Tipmowersothat itrestsonthe housing.Keepthe

sidewiththeaircleanerfacingup.Holdmowerfirmly.

__IL ARNING:Nevertip the mowermore

than 90 degreesin anydirections and

do not leavethe mower tipped for any

length of time. Oil can drain intothe

upper partof the engine causing a

starting problem.

3. Scrapeandcleantheundersideofthedeckwitha

suitabletool.Donotspraywithwater.

4. Putthemowerbackonitswheelsontheground.If

youhadputplasticunderthegascapearlier,make

sureto removeitnow.

Engine Care

1. Maintainoil levelasinstructedin enginemanual.

2. Serviceaircleanerevery25 hoursundernormal

conditions.Cleaneveryfewhoursunderextremely

dustyconditions.Refertoenginemanual.

3. Cleansparkplugand resetthegaponcea season.

Checkenginemanualforcorrectplugtype andgap

specifications.

4. Cleanengineregularlywitha clothorbrush.Keepthe

coolingsystem(blowerhousingarea)cleantopermit

properaircirculation.Removeall grass,dirtand

combustibledebrisfrommufflerarea.

Blade Care

__lk ARNING:Whenremovingcutting

bladefor sharpeningor replacement,

protectyourhandswitha pairof heavy

gloves or usea heavy ragto hold blade.

1. Disconnectsparkplugwirefromsparkplug.Turn

moweron itssidemakingsurethattheairfilterand

thecarburetorareup.

2. Removebolt,bladebellsupport,blade,andblade

adapterfromtheenginecrankshaft.SeeFigure4.

3. Thebladecanbe sharpenedwitha fileor on a grind-

ing wheel.Donotattempttosharpenthebladewhile

it isstillon themower.Whensharpeningblade,follow

originalangleofgrind.Grindcuttingedgesequallyto

keepbladebalanced.

4. Removebladefromtheadapterfortestingbalance.

Balancethebladeona roundshaftscrewdriverto

check.Removemetalfromtheheavysideuntilit

balancesevenly.

Figure 4

_ WARNING:Anunbalanced bladewill

causeexcessivevibration whenrotating

athigh speeds, itmay causedamage

to mower,and could breakcausing

personalinjury.

5. Lubricatetheenginecrankshaftandtheinnersurface

ofthebladeadapterwithlightoil.Slidetheblade

adapterontotheenginecrankshaft.Placetheblade

on theadaptersuchthatthesideoftheblademarked

"Bottom"(orwithpartnumber)facesthegroundwhen

themowerisin theoperatingposition.Makesurethat

bladeisalignedandseatedon bladeadapterflanges.

6. Placebladebellsupportonthe blade.Alignnotches

on thebladebell supportwith smallholesin blade.

Replacehexboltandtightenhexboltto torque:450

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

Toensuresafeoperationofyourmower,periodically

checkthebladeboltforcorrecttorque.

Belt Care

1. Removethefrontdrivecoverbyslidingoffthe

two plasticrivetson eachsideofthecoverwitha

screwdriver.SeeFigure5.

2. Loosenscrewholdingbelttensionspringtotrans-

mission.SeeFigure5 inset.Donotremovescrew

completely.Asyouloosenit, tensiononthebeltwillbe

released.

Pushtransmissionup a littleandslidebeltoffthe

transmissionpulley.Lift mowertoaccessbeltfrom

undersideofmower.Slidebeltoff ofenginepulleyand

aroundtheblade.SeeFigure6.

Figure 5

Figure 6

4. Replacewith newbelt,workingaroundblade.Make

surebeltisfirmlyseatedonenginepulleywhile

pullingfromtheothersideand slidingitaroundthe

transmissionpulley.Tightenscrewloosenedearlier

tosecurebelttensionspringtothetransmission.

Reassemblefrontdrivecover.

Maintaining

WARNING

When removing

the cutting blade

for sharpening or

replacement or

when sliding the belt

around it, protect

your hands with a

pair of heavy gloves

or use a heavy rag to

hold the blade.

An unbalanced blade

will cause excessive

vibrationwhen rotat-

ing at high speeds. It

may cause damage

to mower, and could

break causing per-

sonal injury.

For repairs beyond

the minor adjustments

listedhere, contact

an authorized service

!iiii iLi i iiiii I

i_i i i ii i i i

Problem Cause Remedy

Enginefails to start I ii Biadecontroldisengaged. Engage bladecontro!.

sparkplugWiredisconnected: i 21 c0nnect wiretosPa[kpiugl

Engineruns erratic

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.

Engineoverheats 1. Engineoil levellow. 1. Fillcrankcasewith properoil

I 2. Airflow restricted. 2. Removeblowerhousing

I andclean.

I 3. Carburetornotadjustedpropery. 3. Referto engne manua.

I I

Occasionalskips 1. Sparkpluggap tooclose. 1. Adjust gapto .030".

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

highspeed improperlyset.

Idlesnoorlv 1 Sparkplugfouled,faultyor gap I 1. Resetgapto .030"or replace

r i I too wide. sparkplug.

I 2. Carburetorimproperlyadjusted. 2 Referto enginemanual.

3. Drtyarceaner, . 3. Refertoengnemanua.

Excessive 1. Cuttingbladelooseor unbalanced. 1. Tightenbladeandadapter.Balance

Vibration blade.

2. Bentcuttingblade. 2. Seeanauthorizedservicedealer.

Mowerwill not I 1. Wetgrass. 1. Donot mowwhengrassiswet;wait

much _rass' f i , untillatertocut,

E uy _d,t I 2. Excessivelyhighgrass. I 2. Mowonce atahigh cuttingheight

q PP ) I then mowagainatdesiredheightor

I I makeanarrowercuttingpath,

I 3. Du bado. 3. Sharpenor replaceblade.

Unevencut 1. Wheelsnotpositionedcorrectly. 1. Placeallfour wheelsin same

heightposition.

2. Dullblade. 2. Sharpenor replaceblade.

Mowerwill not I 1. Beltnotinstalledproperly. I 1. Checkbeltfor properpuleyinstallation

seIfpropeI ' andmovement.

I 2. Debrsclogg ngdriveoperation. 2, Stopengine,disconnectsparkplug

I wireand cleanoutdebris.

. 3. Damagedorworn belt. . 3. Inspectand replacebelt.

Off-Season Storage

Thefollowingstepsshouldbetakentoprepareyourlawn

mowerforstorage.

1. Cleanandlubricatemowerthoroughlyasdescribedin

thelubricationinstructions.

2. Wedonotrecommendtheuseofa pressurewasher

or gardenhosetocleanyourunit.

3. Refertoenginemanualforcorrectengine

storageinstructions.

4. Coatmower'scuttingbladewithchassisgreaseto

preventrusting.

5. Storemowerina dry,cleanarea.Donotstorenext

tocorrosivematerials,suchas fertilizer.

Whenstoringanytypeof powerequipmentin a poorly

ventilatedor metalstorageshed,careshouldbetaken

torust-prooftheequipment.Usinga lightoil or silicone,

coattheequipment,especiallycablesandall moving

partsofyourlawnmowerbeforestorage.

Safety Labels Found On Your Lawn Mower

_i _i i _iii i__ i iii ii_

WARNING

DONOTremove safety

(or any) labels from

mower for any reason.

iVlodel Series 520

_22_ i %

1. 747-1214 DriveControlHandle

2. 747-1161A BladeControlHandle

3. 746-1132 BladeControlCable- 40.75"

4. 746-04204 DriveControlCable

5. 749-1092A UpperHandle

6. 710-1205 EyeBolt

7. 720-0279 WingNut 1/4-20

8. 732-1026 SpringLever

9. 687-02139 PivotArmAssembly

10. 710-1174 CarriageBolt5/16-18x2.0

11. 731-2626 BailCover

12. 720-04072 WingNut

13. 749-04037 LowerHandle

14. 725-0157 CableTie

15. 17098 HingeClip

16. 731-2537 TrailShield

17. 710-0599 HexScrew1/4-20x.500

18. 682-3062A HandleBracketAssy- RH

19. 736-0741 BellWasher,.760x 1.25x.041

20. 712-04065 LockNut3/8-16

21. 682-3063A HandleBracketAssembly-LH

22. 687-02046 22"DeckAssembly

23. 710-0654A HexWasherScr., 3/8-16x 1.0

24. 754-04100 V-Belt,3Lx32.90

25. 782-0585A ForwardHeightAdj.Plate- LH

26. 728-0199 Rivet

27. 750-04407 SleeveSpacer.550IDx 2.22

28. 716-0198 RetainerRing

29. 618-04375 TransmissionAssy.Comp.

30. 750-04406A SleeveSpacer.550IDx 7.42

31. 731-0073 TransmissionCover

32. 748-04016A BladeAdapter

33. 742-0742A 22"MulchingBlade

34. 736-0524B BellBladeSupport

35. 710-1044 HexCapScrew3/8-24x 1.5

36. 782-0584 ForwardHght.Adj.Plate- RH

37. 741-0710 SIv.Bearing,.502x.627x 1.00

38. 710-0216 HexCapScrew3/8-16x.75

39. 720-0426 AdjustmentKnob

40. 748-0455 BearingSupport

41. 731-04643 WheelDustCover

42. 715-0221 Pin

43. 717-1762 SpurGear 14T- RH

717-1761 SpurGear14T- LH

44. 732-04049 Ext.Spring.47ODx2.50

45. 734-2042 FrontWheel8 x2.125

46. 747-0710 HingePin

47. 732-1014 TorsionSpring

48. 731-1034B SideDischargeAssembly

49. 736-0270 BellWasher.265IDx.75OD

50. 17032A DeflectorChuteAdapter

51. 710-0216 HexCapScrew3/8-16x.75

52. 741-0717 ThrustBrg.688IDx 1.938OD

53. 732-0984B SpringLever

54. 687-02080 RearPivotArmAssy- RH

687-02079 RearPivotArmAssembly- LH

55. 738-1127 ShoulderScrew3/8-16

56. 716-0865 SnapRing.500

57. 734-04093 RearWhee112x2.125

58. 631-04045 MulchingBaffle

59. 748-0390 BearingSupportSpacer

60. 731-0981A HubCap(If Equipped)

61. 687-02052 RearHgt.Adj.LeverAssembly

62. 710-04329 TorxScrew

63. 715-0129 SpirolPin

64. 715-04030 Dowelpin

65. 756-04132 Pulley,3.82x .313x .68

66. 736-0105 BellWasher,.325x .930x .45

67. 736-0182 SpringWasher,.500x 1.00x .022

_FACTORY PARTS

iiii_i_ii__!_i!_II__i!i _iii_iiii_i!_il_i_

To order replacement

parts,to.tact

,8oo;8oo,731o

wwwimtdproduCts:com:

IMPORTANT

Fora properworking

machine,use Factory

ApprovedParts.

V-BELTSare specially

designedto engage

anddisengagesafely.

A substitute (nonOEM)

V-Beltcanbe danger-

ousby not disengaging

completely.

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 520 Series User manual

Brand: MTD

Model: 520 Series

Category: Lawnmowers

Type: User manual

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MTD 520 Series User manual

MTD 520 Series User manual

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