Yard-Man Model Series 420 Owner's manual

Brand: Yard-Man

Model: Model Series 420

Category: Lawnmowers

Type: 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 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.769-01609A

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

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

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

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 modelplateby standing at the operating

position andlookingdown atthe rear ofthe deck. This

informationwill be necessaryto usethemanufacturer'sweb

site and/or obtain assistancefrom the CustomerSupport

Departmentoran authorizedservicedealer.

Model Number

Serial Number

YaRD-MaN)//"

P. O. BOX ;361131

CLEVELAND,OH44136

www.yardman.com 330-220-4683

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 difficultyassemblingthis productorhave any

questions regardingthecontrols, operationor maintenanceof

this unit,youcanseek helpfromthe experts.Choosefrom the

options below:

1. Visit yardman.com for many usefulsuggestions.Click

on CustomerSupport buttonand you will get the four

options reproducedinthis sampleto the right.Click on the

appropriate buttonand helpis immediatelyavailable.

2. Phonea Customer Support Representative

at 1(800) 800-7310.

3. The engine manufacturer isresponsiblefor all engine-

relatedissueswith regardsto performance,power-rating,

specifications,warranty and service. Pleasereferto the

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

separatelywithyour unit,for moreinformation.

Click here to search our knowledge base.

Search by product, keyword, or phrase.

your inquiries, or update your personal profile.

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

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 itsconstituents,andcertain vehicle compo-

nentscontain or emit chemicals knownto Stateof Californiato cause cancer and

birth defectsor other reproductiveharm.

DANGER: Thismachinewas builtto beoperatedaccordingto the rulesfor safe operationin this

manual.As with anytypeof powerequipment,carelessnessor erroronthe part ofthe operatorcan

result inseriousinjury.This machine iscapableof amputatinghands andfeet andthrowing objects.

Failureto observethe followingsafety instructionscould resultin serious injuryordeath.

Children

Tragicaccidentscanoccurifoperatorisnotalertto presence

ofchildren.Childrenareoftenattractedtomowerand mowing

activity.Theydonot understandthe dangers.Neverassume

thatchildrenwill remainwhereyoulastsawthem.

1. Keepchildrenoutofthe mowingareaandunderwatchful

careofa responsibleadultotherthanthe operator.

2. Bealertandturnmoweroffif achildentersthearea.

3. Beforeand whilemovingbackwards,lookbehindanddown

forsmallchildren.

4. Useextremecarewhenapproachingblindcorners,

doorways,shrubs,trees,orotherobjectsthatmayobscure

yourvisionofa child whomayrunintothemower.

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. Neverallowchildrenunder14yearsoldto operatethis

machine.Children14yearsoldand overshouldreadand

understandthe instructionsinthismanualandshould

betrainedand supervisedby a parent.Onlyresponsible

individualswhoarefamiliarwiththeserulesofsafe

operationshouldbeallowedto usethis machine.

4. Thoroughlyinspectthe areawheretheequipmentisto

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. Tohelpavoidbladecontactora thrownobjectinjury,

stayinoperatorzonebehindhandlesandkeepchildren,

bystanders,helpersandpetsatleast75feetfrom mower

whileit is inoperation.Stopmachineifanyoneenters

area.

6. Alwayswearsafetyglassesor safetygogglesduringopera-

tionandwhile performinganadjustmentor repairtoprotect

youreyes.Thrownobjectswhich ricochetcancauseserious

injurytothe eyes.

7. Wearsturdy,rough-soledworkshoesand close-fitting

slacksandshirts.Shirtsand pantsthatcoverthe armsand

legsandsteel-toedshoesarerecommended.Neveroperate

thismachineinbarefeet,sandals,slipperyor light-weight

(e.g.canvas)shoes.

8. Do notputhandsorfeetnearrotatingpartsor undercutting

deck.Contactwithbladecanamputatehandsandfeet.

9. A missingor damageddischargecovercancause blade

contactor thrownobjectinjuries.

10.Manyinjuriesoccurasa resultofthe mowerbeingpulled

overthefoot duringafall causedbyslippingor 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 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. Aslipand fall cancauseseriouspersonal

injury.If youfeelyouarelosingyourfooting,releasethe

bladecontrolhandleimmediatelyand the 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 rotatefora fewsecondsafter

the engineisshutoff. Neverplaceany partofthe bodyin

the bladearea untilyouaresurethe bladehasstopped

rotating.

20. Neveroperatemowerwithoutpropertrail shield,discharge

cover,grasscatcher,bladecontrolhandleor othersafety

protectivedevicesin placeandworking.Neveroperate

mowerwithdamagedsafetydevices.Failuretodo socan

resultin personalinjury.

21. Mufflerandenginebecomehotandcan causeaburn.Do

nottouch.

22.Only usepartsandaccessoriesmadeforthismachineby

manufacturer.Failuretodo socanresultinpersonalinjury.

23. Ifsituationsoccurwhicharenotcoveredin this manual,

usecareand goodjudgment.Contactyourdealerfor

assistance.Telephone1-800-800-7310forthe nameofyour

nearestdealer.

Slope Operation

Slopesareamajorfactorrelatedto 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.Ifyoufeelyouarelosingyour

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. Neverfillcontainersinsideavehicleoron 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,pipesandothersources

ofignition.

8. Neverfuel machineindoorbecauseflammablevaporswill

accumulatein thearea.

9. Neverremovegascap oradd fuelwhileengineishot or

running. Allowengineto coolatleasttwominutesbefore

refueling.

10.Neveroverfillfueltank. Filltankto nomorethanY2inch

belowbottomoffiller neckto providefor fuelexpansion.

11.Replacegasolinecapandtightensecurely.

12.If gasolineis spilled,wipeitoff theengineand equipment.

Moveunittoanotherarea.Wait5minutesbeforestarting

engine.

13.Neverstorethe machineorfuel containernearanopen

flame,sparkor pilotlightasona 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 makea wheelor 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

disposaloffluidsandmaterialscanharmtheenvironment.

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.

MOTElThisOperatoris

Manualcoversseveral

modelslLawnMower

featuiesvaryby

model:Notallfeatures

discussedinthis

manualareapplicable

to allLawnMower

NOTE:Standbehind

themowerasifyou

weregoingtooperate

it.YOLJrrighthand

correspondstotheright

sideofthemoweryour

efthandCorresponds

totheleftsideofthe

mower:

NOTEIYourmower

is shippedWiththe

handleinthehigher

heightposition,

NOTE:Eachendof

the lowerhandlemust

beplacedintheSame

relativepositionI

IMPORTANT

This unt sshipped

Withoutgasolineor

oilin theenginelFill

upgasolinea.ndoil

as instructedinthe

accompanyingengine

Step 1

._ardware Pack

_ Wing Nuts (2) Carriage Bolts (2)

1. Removeanypackingmaterialwhichmaybebetween

upperandlowerhandles.

a. Pullupand backon upperhandleasshownin

Step1.Makecertainthe lowerhandleis seated

securelyintothehandlemountingbrackets.

b. Tightenhandknobssecuringupperhandleto

lowerhandle.Makesurethateachcarriageboltis

seatedproperlyin thehandle.

2. Locatehairpinclipinone holeon theweldpinon each

sideof lowerhandle.

a. Removehairpinclipfromthis hole.Usinga pairof

pliers,inserthairpinclipintotheotherholeon the

weldpin.Repeaton otherside.

b. Inserta carriageboltfromthehardwarepackinto

theupperholeonthehandlemountingbracket.

Securewithone plasticwingnut,alsoincluded

inthehardwarepack.Repeatonothersidewith

remainingitemsfromhardwarepack.

Theropeguideisattachedtotherightsideofthe

upperhandle.Loosenthewingnutwhichsecuresthe

ropeguide.

a. Holdbladecontrolhandleagainstupperhandle.

b. Pullstarterropeoutoftheengine.Releaseblade

controlhandle.

c. Slipstarterropeintoropeguide.Tightenwingnut.

4. Insertpostoncabletiesintoholesprovidedon the

lowerhandle.Pullcabletietightandtrimexcess.

Step 2

Step 3 Step 4

5. An adjustingplateandthumbleverateachwheel

positionprovidescuttingheightadjustment.

a. Depresslevertowardswheel.

b. Moveittoanyof theninepositionsfordesired

cuttingheight.SeeStep5.

c. Releaselevertowardsmowerdeck.

6. Followstepsbelowtoassemblethegrasscatcher:

a. Placebagoverframesothat itsblackplasticside

is atthebottom.

b. Slip plasticchannelofgrassbagoverhooksonthe

frame.SeeStep6.All theplasticchannelsexcept

centertopof bagattachfromoutsideofbag.

c. Attachcentertopofbagfrominsideofbag.

7. Followstepsbelowtoattachgrasscatcher:

a. Liftreardischargedoor.

b. Placegrasscatcheron thepivotrod.Letgo

ofdischargedoorsothat itrestson thegrass

catcher.SeeStep7.

Toremovegrasscatcherorconverttoa mulcher,lift rear

dischargedooron themowerasshowninStep8. Lift

grasscatcherupandoutofthepivotrod.Releaserear

dischargedoortoallowittocloserearopeningof mower.

_IL ARNING: Never operate mower

unless the hooks on the grass

catcherare firmly seated in the

slotson the handle bracket as-

semblies, and the rear discharge

door rests firmly against top of

the grass catcher.

Step 5

Step 6

.,)

..... J

Step 7

uStment

CUTTING HEIGHT

Step5

All wheelsmust be

placedin thesame

relative positionl

GRASSCATCHER

Stepe

Makecertain bag is

turned right side out

before assembling

(warninglabelWillbe

onthe outside):

WARNING

Never operate mower

unlessthe hooks on

the grasscatcher are

firmly seated in the

slots on the handle

bracket assemblies,

and the rear dis-

charge door rests

firmly against top of

the grasscatcher.

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

BladeControl

Recoil

--, Upper Handle

Lower Handle

Starter

Grass

Catcher

Oil Fill

Cutting Height

Adjustment Lever

(for eachwheel)

Gasoline Fill

Figure 1

Now that you have set up your lawn mower for op-

eration, get aquainted with its controls and features.

These are described below and illustrated on this

page. This knowledge will allow you to use your

new equipment to its fullest potential.

Blade Control

The blade control is attached to the upper handle

of the mower. Depress and squeeze it against the

upper handle to operate the unit. Release it to stop

engine and blade.

Recoil Starter

The recoil starter is attached to the right upper

handle. Stand behind the unit and pull the recoil

starter rope to start the unit.

Gas and Oil Fill-Up

1. Check oil level and add oil if necessary. Follow engine

manual for this. See Figure 1above for location of the

oil fill.

2. Servicetheenginewithgasolineasinstructedinthe

enginemanual. SeeFigure1aboveforlocationof

gasfill.

__1 WARNING:Thisblade controlmecha-

nism isa safety device. Neverattempt

to bypass itsoperations.

Cutting Height Adjustment Levers

One adjustment lever is located on each wheel and

is used to adjust the cutting height. All four levers

have to be at the same relative position to ensure a

uniform cut.

__k 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.

WARNING:The operationof any lawn

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-

ingmower.Neverrun engine indoors

or in enclosed, poorly ventilated areas.

Engine exhaustcontains carbon monox-

ide,an odorless and deadly gas. Keep

hands,feet,hairand loose clothing

awayfrom any moving partson engine

and lawnmower.

1. Placethefuelvalveleverfoundontheleft sideofthe

engineintotheOPENposition.SeeFigure2 inset.

2. Movethechokeleverall thewaybackwardintothe

chokeposition.Oncetheengineiswarm,theleverwill

automaticallyreverttothe RUNposition.Refertothe

enginemanualforfurtherdetails.

3. Standingbehindthe mower,squeezethebladecontrol

againstupperhandle.SeeFigure2.

4. Holdingthesetwo handlestogetherfirmly,grasprecoil

starterhandleand pullropeoutwitha rapid,continu-

ous,fullarmstroke.SeeFigure2.Keepinga firm

grip onthestarterhandle,lettheroperewindslowly.

Repeatuntilenginecranks.Letthe roperewindeach

timeslowly.

_kk ARNING:Waitfor the blade to stop

completely beforedoing anywork

on the mower or to removethegrass

catcher.

Stopping Engine

1. Releasebladecontroltostoptheengineand blade.

2. Disconnectsparkplugwirefromsparkplugand

groundagainsttheengine.

UsingYour Lawn Mower

_kl= WARNING:Neveroperateyour mower

without eitherthe rear door or the entire

grass catcher assembly firmly secured.

Besurelawnisclearof stones,sticks,wire,or other

objectswhichcoulddamagelawnmowerorengine.

Suchobjectscouldbe accidentlythrownbythemower

in anydirectionandcauseseriouspersonalinjurytothe

operatorandothers.

Figure 2

_klL ARNING: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.

1. Forbest results,do notcut wetgrass.

2. Fora healthierlawn,nevercut offmorethanone-

thirdofthetotallengthofthegrass.

Using as Mulcher

Formulchinggrass,removethegrasscatcherfromthe

mower.Thereardischargedoorshouldbeclosed.

1. Foreffectivemulching,do notcut wetgrass.

2. Newor thickgrassmayrequirea narrowercut.

Adjustgroundspeedaccordingtoconditionoflawn.

3. If thegrasshasbeenallowedto growinexcessof

4 inches,mulchingisnotrecommended.Usethe

grasscatchertobagclippingsinstead.

Using Grass Catcher

Youcanusethegrasscatchertocollectclippingswhile

youareoperatingthemower.

1. Attachgrasscatcherfollowinginstructionson page

7. Grassclippingswillautomaticallycollectinthe

bagasyourunthe mower.Operatethemowertillthe

grassbagisfull.

2. Stopenginecompletelybyreleasingtheblade

controlhandle.Makesurethattheunithascometo

a completestop.

3. Liftdischargedoorandpullgrassbagup andaway

fromthe mowertodisposeofthegrassclippings.

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.

Maintaining

WARNING

Alwaysstopengine,

disconnectspark

plug,andground

againstenginebefore

cleaning,lubricating

ordoinganykindof

maintenanceonyour

machine.

I Never tip the mower

more than 90 degrees

in any directions

and do not leavethe

mower tipped for any

i length oftime. Oil can

drain intothe upper

part of the engine

causing a starting

i problem.

Lubricatethese

_ointsbefore

reassembly.

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.

,_ WARNING: Alwaysstop engine,

disconnect spark plug, and

groundagainst engine before

cleaning, lubricating or doing

any kind of maintenanceon your

machine.

Lubrication

1. Lubricatepivotpointson thebladecontrolhandleat

leastoncea seasonwith lightoil.Thebladecontrol

mustoperatefreelyinbothdirections.SeeFigure3.

2. Lubricatethewheelsatleastoncea seasonwith

lightoil (ormotoroil). If wheelsareremovedforany

reason,lubricatesurfaceofthepivotarmandinner

surfaceof thewheelwithlightoil.SeeFigure3.

3. Lubricatethetorsionspringandpivotpointonthe

reardischargedoorperiodicallywithlightoil to

preventrust.SeeFigure3.

4. Followtheaccompanyingenginemanualforlubrica-

tionscheduleandinstructionforenginelubrication.

Deck Care

Clean underside of the mower deck after each use

to prevent build-up of grass clippings or other debris.

Follow steps belowfor this job.

1. Disconnectsparkplugwire.Draingasolinefromlawn

mower,or placea pieceof plasticunderthegascap.

2. Tipmowersothat itrestsonthe housing.Keepthe

sidewiththeair cleanerfacingup.Holdmowerfirmly.

,__, WARNING: Never tip the mower

more than 90 degrees in any

-- directions and do not leave the

mower tipped for any length of

time. Oil can drain intothe upper

part of the engine causing a

starting problem.

3. Scrapeandcleantheundersideofthedeckwitha

suitabletool.Donotspraywithwater.

4. Putthemowerbackonitswheelsontheground.If

youhad putplasticunderthegascapearlier,make

sureto removeitnow.

NOTE: Wedo notrecommend the

useofpressure washersor garden

hose tocleanyour unit. Thesemay

cause damageto electriccompo-

nents, spindles,pulleys,bearings,

or theengine. Theuseof water will

result inshortened fifeand reduce

serviceability.

Engine Care

A listofkeyenginemaintenancejobs requiredforgood

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.

Blade Care " "

_ ARNING: When removing the

cutting blade for sharpening or

replacement, protect your hands

with a pair of heavy gloves or use

a heavy rag to hold the blade.

Periodicallyinspectthebladeadapterforcracks,

especiallyif youstrikea foreignobject.Replacewhen

necessary.Followthe stepsbelowforbladeservice.

1. Disconnectsparkplugwirefromsparkplug.Turn

moweron itssidemakingsurethattheairfilterand

thecarburetorareup.

2. Removetheboltandthe bladebellsupportwhich

holdthebladeand thebladeadaptertotheengine

crankshaft.See Figure4.

3. Removebladeandadapterfromthecrankshaft.

4. Thebladecanbe sharpenedwitha fileor on a grind-

ingwheel.Donotattempttosharpenthebladewhileit

isstillonthemower.

5. Whensharpeningtheblade,followtheoriginalangle

ofgrind.Grindeachcuttingedgeequallyto keepthe

bladebalanced.

Removebladefromtheadapterfortestingbalance.

Balancethebladeona roundshaftscrewdriverto

check.Removemetalfromtheheavysideuntilit

balancesevenly.

,__ WARNING: An unbalanced blade

will cause excessive vibration

when rotating at high speeds, it

may cause damage to mower, and

could break causing personal

injury.

8. Lubricatetheenginecrankshaftandtheinnersurface

ofthebladeadapterwithlightoil.Slidetheblade

adapterontotheenginecrankshaft.

9. Placethebladeon theadaptersuchthattheside

oftheblademarked"Bottom"(orwithpartnumber)

facesthegroundwhenthemowerisintheoperating

position.Makesurethatthebladeisalignedand

seatedon thebladeadapterflanges.

10.Placebladebellsupportonthe blade.Alignnotches

on thebladebell supportwith smallholesinblade.

11.Replacehexboltandtightenhexboltto torque:450

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

Toensuresafeoperationofyourmower,periodically

checkthebladeboltforcorrecttorque.

Figure 4

Figure 5

Replacing Rear Flap

1. Toremoverearflap,cutoff theflatendofthewire

rodwhichsecuresittothedeck.See Figure5.

2. Attachthenewflapand newrodtodeck,bending

theendsofthenewrodoverto securetodeck.

Off-Season Storage

Thefollowingstepsshouldbetakento prepareyour

lawnmowerforstorage.

1. Cleanandlubricatemowerthoroughlyasdescribed

inthe lubricationinstructions.

2. Wedo notrecommendtheuseofa pressurewasher

orgardenhosetocleanyourunit.

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.

Maintaining

Yo ur LaWn

ower

WARNING

When removing

the cutting blade

for sharpening or

replacement, protect

your handswith a

pair of heavy gloves

or use a heavy ragto

holdthe blade.

An unbalanced blade

will causeexcessive

vibration when rotat-

ing at high speeds, it

may cause damage

to mower, and could

break causing per-

sonal injury.

Forrepairs beyond

the minor adjustments

listed here, contact

an authorized service

dealer.

Problem Cause Remedy

En n f ils to start Bladecontrolhandledisengaged

I 1: Engagebladecontrolhandle.

g ea , ....

2. Sparkplugwiredisconnected. 21 connectwireto sparkplug,

&Fuel tankemptyorstalefuel. & Fill tankwith€ieanlfreshgasolinei

41 Enginenotprirned. & Primeengineasinstructedin

OPerating ouiLawnMowei

Fut sark u 5 Cean adjustgap or repace

a y p p!g,

6. Blockedfueliinel 6, Cleanfuelline;

7 Engine flooded 7. Waitafew minutestorestart,but

do notprime.

Engineruns erratic

1. Sparkplugwireloose.

2. Blockedfuellineor stalefuel.

3. Ventingascapplugged.

4. Waterordirt infuelsystem.

5. Dirtyaircleaner.

6. Carburetoroutofadjustment.

1. Connectandtightenspark

plugwire.

2. Cleanfuelline;filltankwithclean,

freshgasoline.

3. Clearvent.

4. Drainfueltank.Refillwith

freshfuel.

5. Refertoenginemanual.

6. Refertoenginemanual.

Engne overheats 1 Engneoil levellow. 1. FIIcrankcasewithproperoil.

2. Airflow restricted• I 2. Removeblowerhousing

! I, andclean•

I 3. Carburetornotadjustedproperly• 3. Referto enginemanual.

Occasionalskips 1. Sparkpluggaptooclose. 1. Adjustgap to.030".

(hesitates)at 2. Carburetoridlemixtureadjustment 2. Refertoenginemanual.

highspeed improperlyset.

Idlespoorly 1. Sparkplugfouled,faultyorgap 1. Resetgapto .030"orreplace

toowide. sparkplug

2 Carburetorimproperlyadjusted. 2. Referto enginemanual•

. 3 Dirtyaircleaner. . 3 Referto enginemanual.

Excessive 1. Cuttingbladelooseor unbalanced. 1. Tightenbladeandadapter.

Vibration Balanceblade.

2. Bentcuttingblade. 2. Seean authorizedservicedealer.

Mowerwillnot 1. Wetgrass. 1. Donotmowwhengrassiswet

mulch grass wait untilatertocut.

2 Excessivel' highgrass I 2. Mowonceata highcuttingheight,

• Y " thenmowagainatdesiredheight

I I or makea narrowercuttingpath.

3 Dullblade

I " ' I 3. Sharpenorreplaceblade•

Unevencut 1. Wheelsnotpositionedcorrectly. 1. Placeall fourwheelsin same

heightposition.

2. Dullblade. 2. Sharpenor replaceblade.

ii i _iI_ii

1 747-1161A Blade Control Handle

2 749-1092A Upper Handle

3 747-04080 Grass Catcher Frame

4 749-0928A Lower Handle

5 720-0279 Wing Nut

6 710-1205 Rope Guide

7 710-1174 Carriage Bolt ,5/16-18x 2

8 664-04027 Grass Bag Assembly

9 720-0284 Hand Knob

10 736-0451 Saddle Washer

11 726-0240 Cable Tie

12 710-0703 Carriage Bolt,I/4-20

13 731-04134A Rear Discharge Door

14 750-04162 Spacer

15 732-04089A Torsion Spring- LH

16 732-04090A Torsion Spring- RH

17 731-04150 Rear Baffle

18 731-1426A Hubcap

19 787-01208 Deck- 21"

20 710-0286 AB Screw, 10-16x .500"

21 782-5002B Front Baffle

22 748-0377C Blade Adapter

23 742-0741 Mulching Blade

24 710-1257 Hex Bolt, 3/8-24 x 1.5

25 687-02077 Pivot Arm Assembly RH (8" wheel)

687-02076 Pivot Arm Assembly LH (8" wheel)

26 736-0524B Blade Bell Support

27 15261C FrontAdjustmentPlate

28 720-0426 AdjustmentLeverKnob

29 732-0404 SpringLeverAssembly

30 738-0507B ShoulderScrew

31 734-2004A FrontWheel8x2.125ZagBBBlack

32 710-04371 Screw,1/4-15x 1.250

33 746-1130 ControlCable-40"

34 712-04064 FlangeLockNut,1/4-20

35 731-04998 Trailshield

36 732-0700 TrailshieldWire

37 712-0397 WingNut,1/4-20

38 747-04035 RearDoorPivotRod

39 732-04175 SpringLever

40 687-02071 PivotArmAssembly- RH

687-02070 PivotArmAssembly- LH

41 710-1652 ABScrew

42 712-0431 FlangeLockNut,3/8-16

43 714-0104 HairpinClip

44 710-0654A TTSeresScrew,3/8-16x 1.0

45 687-02074 Ht.Adj.Assy.Front- RH(8"Wheel)

687-02075 Ht.Adj.Assy.Front- LH(8"Wheel)

46 687-02069 RearHandleBracketAssy.- LH

687-02068 RearHandleBracketAssy.- RH

47 738-04136 ShoulderScrew

49 736-0504 WaveWasher.510X .750X .017

To order replacement

partsl contact

1,800,800=7310

wwwlyardman:com

MANUFACTURER'S LiMiTED WARRANTY FOR

YaRD-MaN,

ThelimitedwarrantysetforthbelowisgivenbyMTDLLCwithrespectto

newmerchandisepurchasedandusedin theUnitedStates,itsposses-

sionsandterritories.

"MTD"warrantsthisproductagainstdefectsin materialandworkmanship

fora periodoftwo(2) yearscommencingonthedateoforiginalpurchase

andwill,atits option,repairor replace,freeofcharge,anypartfoundto

bedefectiveinmaterialsor workmanship.Thislimitedwarrantyshallonly

applyifthis producthasbeenoperatedandmaintainedinaccordance

withtheOperator'sManualfurnishedwiththeproduct,andhasnotbeen

subjectto misuse,abuse,commercialuse,neglect,accident,improper

maintenance,alteration,vandalism,theft,fire,water,ordamagebecause

ofotherperilor naturaldisaster.Damageresultingfromtheinstallationor

useofanypart,accessoryorattachmentnotapprovedbyMTDforuse

withtheproduct(s)coveredbythis manualwillvoidyourwarrantyasto

anyresultingdamage.

Normalwearpartsarewarrantedto befreefromdefectsinmaterialand

workmanshipfora periodofthirty(30)daysfromthedateof purchase.

Normalwearpartsinclude,butare notlimitedto itemssuchas: batteries,

belts,blades,bladeadapters,grassbags,riderdeckwheels,seats,snow

throwerskidshoes,shaveplates,augerspiralrubberandtires.

HOWTOOBTAINSERVICE:Warrantyserviceisavailable,WITH

PROOFOFPURCHASE,throughyourlocalauthorizedservicedealer.To

locatethedealerin yourarea,checkyourYellowPages,orcontactMTD

LLCatRO.Box361131,Cleveland,Ohio44136-0019,or call1-800-800-

7310or logon toourWebsiteatwww.mtdproducts.com.

Thislimitedwarrantydoesnot providecoverageinthefollowingcases:

a. Theengineor componentpartsthereof.Theseitemsmay

carrya separatemanufacturer'swarranty.Refertoapplicable

manufacturer'swarrantyfortermsandconditions.

b. Logsplitterpumps,valves,andcylindershavea separateone

yearwarranty.

c. Routinemaintenanceitemssuchaslubricants,filters,blade

sharpening,tune-ups,brakeadjustments,clutch adjustments,

deckadjustments,andnormaldeteriorationoftheexteriorfinish

duetouseorexposure.

d. Servicecompletedbysomeoneotherthananauthorizedservice

dealer.

MTDdoesnotextendanywarrantyforproductssoldor

exportedoutsideoftheUnitedStates,its possessionsand

territories,exceptthosesoldthroughMTD'sauthorized

channelsofexportdistribution.

ReplacementpartsthatarenotgenuineMTDparts.

Transportationchargesand servicecalls.

No impliedwarranty, includinganyimpliedwarranty of merchant-

ability of fitness for a particularpurpose,applies after the applicable

periodof expresswritten warranty aboveas to the partsas identi-

fied. Noother expresswarranty, whether written or oral, exceptas

mentionedabove,given byanypersonor entity,includinga dealer

or retailer,with respect to anyproduct,shallbindMTD.Duringthe

periodof the warranty, the exclusiveremedyisrepairor replacement

of the productas setforth above.

Theprovisionsas setforth inthis warrantyprovidethe soleand

exclusiveremedyarising from the sale.MTDshallnot beliable

for incidentalor consequentialloss or damageincluding,without

limitation, expensesincurredfor substituteor replacement lawncare

servicesor for rentalexpensesto temporarily replacea warranted

product.

Somestatesdo notallowtheexclusionor limitationofincidentalor

consequentialdamages,or limitationson howlonganimpliedwarranty

lasts,sotheaboveexclusionsor limitationsmaynotapplytoyou.

Innoeventshallrecoveryofanykindbegreaterthantheamountofthe

purchasepriceoftheproductsold.Alterationof safety features of the

productshallvoid this warranty. Youassumetheriskandliabilityfor

loss,damage,or injurytoyouandyourpropertyand/ortoothersandtheir

propertyarisingoutofthemisuseor inabilitytousetheproduct.

Thislimitedwarrantyshallnotextendto anyoneotherthantheoriginal

purchaseror tothepersonforwhomitwaspurchasedasa gift.

HOWSTATELAWRELATESTOTHISWARRANTY: Thislimitedwar-

rantygivesyouspecificlegalrights,andyoumayalsohaveotherrights

whichvaryfromstatetostate.

IMPORTANT:OwnermustpresentOriginalProofofPurchasetoobtain

warrantycoverage.

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

Yard-Man Model Series 420 Owner's manual

Brand: Yard-Man

Model: Model Series 420

Category: Lawnmowers

Type: Owner's manual

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Yard-Man Model Series 420 Owner's manual

Yard-Man Model Series 420 Owner's manual

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