Yard-Man 11A-428Q713 Owner’s Manual

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

A O A AL

21" Rotary Mower- Model Series 420

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,it shouldbemaintainedineffectiveworkingorderby theoperator.IntheStateofCaliforniatheaboveisrequiredbylaw (Section4442oftheCaliforniaPublicResourcesCode).Otherstatesmayhavesimilarlaws.Federallawsapplyonfederallands.A sparkarrester forthemufflerisavailablethroughyournearestengineauthorizedservicedealeror contactthe servicedepartment,RO.Box361131Cleveland,

Ohio44136-0019.

FORMNO.769-01609A

PRINTEDIN U.S.A.

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

4/2005

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

Finding and Recording Model Number

BEFOREYOUSTARTASSEMBLING YOURNEW EQUIPMENT,

please locatethe modelplate onthe equipmentand copythe informationtothe sample modelplate providedtothe right. Youcan locatethe model plate by standing at the operating

position and lookingdown atthe rear of the deck. This informationwill be necessaryto usethe manufacturer'sweb site and/or obtain assistancefrom theCustomerSupport

Departmentor an authorizedservice dealer.

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

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

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

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

Model Number

YaRD-MaN)//"

www.yardman.com 330-220-4683

Serial Number

P. O. BOX ;361131 CLEVELAND,OH44136

800-800-731 0

Customer Support

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

purchased, without first contacting Customer Support.

Ifyou have difficulty assemblingthis product or have any

questions regardingthecontrols, operationor maintenanceof this unit, youcan seek help from the experts.Choosefrom the options below:

1. Visit yardman.com for many usefulsuggestions.Click on CustomerSupport buttonandyou will get the four options reproducedin this sampleto the right. Click on the appropriate buttonand helpis immediatelyavailable.

2. Phonea Customer Support Representative at 1(800)800-7310.

3. The engine manufacturer isresponsibleforall engine-

relatedissueswith regardsto performance, power-rating, specifications,warranty and service. Pleasereferto the engine manufacturer'sOwner's/Operator's Manual,packed separatelywithyour unit, for more information.

Click here to search our knowledge base. Search by product, keyword, or phrase.

Need local assistance? Click here to find authorized

service centers in your area.

Need a manual and/or parts list? Download

literature from recent model years.

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WARNING: EngineExhaust,some of its constituents,andcertain vehicle compo- nentscontain or emit chemicals knownto Stateof Californiato cause cancerand

birth defects or other reproductiveharm.

DANGER: This machinewas builtto beoperatedaccordingto the rulesfor safe operationin this manual.As with anytypeof power equipment,carelessnessor error on the part of the operator can result in seriousinjury.This machine iscapableof amputatinghands andfeet andthrowing objects.

Failureto observethe followingsafetyinstructionscould result in serious injury or death.

WARNING

Thissymbolpoints out importantsafety

instructionswhich,if notfollowed,could

endangerthe personal

i safetyand/or property I ofyourselfandothers.

Readandfollowall instructionsinthis

manualbeforeat-

temptingto operate

i this machine.Failure I to complywiththese

instructionsmayresult

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.

Children

Tragicaccidentscanoccurifoperatorisnotalertto presence ofchildren.Childrenareoftenattractedtomowerandmowing activity.Theydonot understandthe dangers.Neverassume thatchildrenwill remainwhereyoulastsawthem.

1. Keepchildrenoutof the mowingareaandunderwatchful careof a responsibleadultotherthanthe operator.

2. Bealert andturn moweroff if a childentersthearea.

3. Beforeandwhilemovingbackwards,lookbehindanddown forsmallchildren.

4. Useextremecarewhenapproachingblindcorners, doorways,shrubs,trees,or otherobjectsthatmayobscure yourvisionofachild whomayrunintothe mower.

5. Keepchildrenawayfromhotorrunningengines.Theycan sufferburnsfroma hotmuffler.

6. Neverallowchildrenunder14yearsoldto operateapower mower.Children14yearsoldandovershouldreadand understandoperationinstructionsandsafetyrulesinthis manualandshouldbetrainedandsupervisedbya parent.

General Operation

1. Readthis operator'smanualcarefullyin its entiretybefore attemptingtoassemblethismachine.Read,understand,

andfollowall instructionsonthemachineandin the manual(s)beforeoperation.Becompletelyfamiliarwith

thecontrolsandthe properuseofthis machinebefore operatingit.Keepthis manualin asafeplaceforfuture andregularreferenceandfor orderingreplacementparts.

2. Thismachineisaprecisionpieceof powerequipment, nota plaything.Therefore,exerciseextremecautionat all times.Yourunithas beendesignedto performonejob: to mowgrass.Do notuseitfor anyotherpurpose.

3. Neverallow childrenunder 14yearsoldto operatethis machine.Children14yearsoldand overshould readand

understandthe instructionsinthismanualandshould betrainedand supervisedbya parent.Onlyresponsible

individualswhoarefamiliarwiththeserulesofsafe operationshouldbeallowedto usethis machine.

4. Thoroughlyinspectthe areawherethe equipmentisto beused.Removeallstones,sticks,wire,bones,toys andotherforeignobjects,whichcouldbetrippedoveror pickedupandthrownbytheblade.Thrownobjectscan causeseriouspersonalinjury.Planyour mowingpattern toavoiddischargeofmaterialtowardroads,sidewalks, bystandersandthe like.Also,avoiddischargingmaterial againsta wall or obstruction,whichmaycausedischarged materialto ricochetbacktowardthe operator.

5. Tohelpavoidbladecontactorathrownobjectinjury, stayinoperatorzone behindhandlesand keepchildren, bystanders,helpersandpetsatleast75feetfrom mower whileitis inoperation.Stopmachineifanyoneenters

area.

6. Alwayswearsafetyglassesor safetygogglesduringopera- tionandwhile performinganadjustmentor repairto protect youreyes.Thrownobjectswhichricochetcancauseserious injurytothe eyes.

7. Wearsturdy,rough-soledworkshoesand close-fitting slacksandshirts. Shirtsand pantsthatcoverthe armsand legsandsteel-toedshoesarerecommended.Neveroperate thismachinein barefeet,sandals,slipperyorlight-weight (e.g.canvas)shoes.

8. Do notputhandsorfeet nearrotatingpartsor undercutting deck.Contactwithbladecanamputatehandsandfeet.

9. A missingor damageddischargecovercancauseblade contactor thrownobject injuries.

10.Manyinjuriesoccuras a resultofthemowerbeing pulled overthefoot duringa fall causedbyslippingor tripping. Do notholdontothe mowerifyouarefalling;releasethe handleimmediately.

11.Neverpullthe mowerbacktowardyouwhileyouare walking.Ifyoumust backthe mowerawayfroma wallor obstructionfirstlookdownandbehindtoavoidtrippingand thenfollowthesesteps:

a. Stepbackfrommowertofullyextendyourarms. b. Besure youarewellbalancedwithsurefooting.

c. Pullthe mowerbackslowly,no morethan half way

towardyou.

d. Repeatthesestepsas needed.

12.Donotoperatethe mowerwhileunderthe influenceof alcoholordrugs.

13.Donotengagetheself-propelledmechanismon unitsso equippedwhilestartingengine.

14.Thebladecontrolhandleisasafetydevice.Neverattempt tobypassitsoperation.Doingso makesthe safetydevice inoperativeandmayresult in personalinjurythrough contactwiththe rotatingblade.Thebladecontrolhandle mustoperateeasily in bothdirectionsandautomatically returntothe disengagedpositionwhenreleased.

15.Neveroperatethe mowerinwetgrass.Alwaysbesureof yourfooting. A slipandfall cancauseseriouspersonal injury.If youfeelyouarelosingyourfooting,releasethe bladecontrolhandleimmediatelyand the bladewillstop

rotatingwithinthreeseconds.

16.Mowonlyin daylightor goodartificiallight.Walk,neverrun.

17.Stopthe bladewhencrossinggraveldrives,walksor roads.

18.Iftheequipmentshouldstartto vibrateabnormally,stopthe engineandcheckimmediatelyforthe cause.Vibrationis generallya warningoftrouble.

19.Shuttheengineoff andwait untilthebladecomesto a completestopbeforeremovingthegrasscatcheror unclog- ging thechute. The cuttingbladecontinuesto rotatefor a fewsecondsafter the engineisshutoff.Neverplaceany partofthe bodyin the bladearea untilyou are surethe blade hasstopped

rotating.

20. Neveroperatemowerwithoutpropertrail shield,discharge cover,grasscatcher,bladecontrolhandleor othersafety

protectivedevicesin placeandworking.Neveroperate mowerwithdamagedsafetydevices.Failuretodo so can resultin personalinjury.

21. Mufflerandenginebecomehotandcan causeaburn.Do

nottouch.

22.Onlyusepartsand accessoriesmadeforthis machineby

manufacturer.Failuretodo so canresultinpersonalinjury.

23. Ifsituationsoccurwhicharenotcoveredinthis manual,

usecareand goodjudgment.Contactyourdealerfor

assistance.Telephone1-800-800-7310forthe nameofyour

nearestdealer.

Slope Operation

Slopesare amajorfactorrelatedto slipandfallaccidents,which can resultinsevereinjury.Operationonslopesrequiresextra

caution.Ifyoufeeluneasyona slope,do notmowit.Foryour safety,usetheslopegaugeincludedaspartof this manualto

measureslopesbeforeoperatingthis unitonaslopedor hilly

area.Iftheslopeisgreaterthan 15degrees,donot mowit.

Do:

1. Mowacrossthefaceof slopes;neverupanddown.Exercise extremecautionwhenchangingdirectiononslopes.

2. Watchfor holes,ruts,rocks, hiddenobjects,or bumpswhich can causeyouto slipor trip.Tallgrass canhideobstacles.

3. Alwaysbesureofyourfooting.A slip andfallcancause seriouspersonalinjury.Ifyoufeelyouare losingyour

balance,releasethebladecontrolhandleimmediately,and

the bladewill stoprotatingwithin 3seconds.

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. Wash yourskin andchangeclothesimmediately.

3. Useonlyanapprovedgasolinecontainer.

4. Neverfill containers insideavehicleoron a truckortrailer bedwitha plasticliner.Alwaysplacecontainersonthe

groundawayfromyourvehicle beforefilling.

5. Removegas-poweredequipmentfromthe truck ortrailer

andrefuelit onthe ground.Ifthis is notpossible,thenrefuel suchequipmenton a trailerwitha portablecontainer,rather thanfroma gasoline dispensernozzle.

6. Keepthenozzlein contactwiththe rimofthefueltankor

containeropeningat alltimesuntil fuelingis complete.Do

notuseanozzlelock-opendevice.

7. Extinguishallcigarettes,cigars, pipesandothersources ofignition.

8. Neverfuel machineindoorbecauseflammablevaporswill accumulatein thearea.

9. Neverremovegascap oraddfuelwhileengineishot or running. Allowengineto coolatleasttwo minutesbefore refueling.

10.Neveroverfillfueltank.Filltankto nomorethanY2inch belowbottomoffiller neckto providefor fuelexpansion.

11.Replacegasolinecap andtightensecurely.

12.Ifgasolineis spilled,wipeitoff theengineandequipment. Moveunitto anotherarea.Wait5minutesbeforestarting engine.

13.Neverstorethe machineorfuel containernearanopen flame,sparkor pilot lightasona waterheater,space heater,furnace,clothesdryeror othergasappliances.

14.Toreducefire hazard,keepmowerfreeof grass,leaves, orotherdebrisbuild-up.Cleanupoil orfuelspillageand removeanyfuel soakeddebris.

15.Allowa mowertocool at least5 minutesbeforestoring.

GeneralService:

1. Neverrunanengineindoorsorina poorlyventilatedarea. Engineexhaustcontainscarbonmonoxide,anodorlessand deadlygas.

2. Beforecleaning,repairing,orinspecting,makecertainthe bladeandall movingpartshavestopped.Disconnectthe sparkplugwireandgroundagainstthe engineto prevent unintendedstarting.

3. Checkthebladeandenginemountingboltsatfrequent 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.

Thoroughlyinspectthemowerforanydamage.Repairthe damagebeforestartingandoperatingthemower.

8. Neverattemptto makeawheelor cuttingheightadjustment whiletheengineis running.

9. Grasscatchercomponents,dischargecover,andtrail shieldaresubjecttowear anddamagewhichcouldexpose movingpartsor allowobjectsto bethrown.Forsafety protection,frequentlycheckcomponentsandreplaceim- mediatelywithoriginal equipmentmanufacturer's(O.E.M.) partsonly,listedinthis manual."Useofpartswhich do notmeetthe originalequipmentspecificationsmayleadto improperperformanceandcompromisesafety!"

10.Donotchangetheenginegovernorsettingor over-revthe engine.Thegovernorcontrolsthe maximumsafeoperating speedoftheengine.

11.Maintainorreplacesafetylabels,asnecessary.

12.Observeproperdisposallawsand regulations.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 before attemptingto

operatethis machine.

Failureto comply with

these instructionsmay result in personalinjury.

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 on the machine.

+ 11 hidden pages