MTD 450 SERIES Owner's manual

Category
Mini tillers
Type
Owner's manual

This manual is also suitable for

Safety Assembly Operation Tips &Techniques Maintenance Troubleshooting Parts Lists Warranty
OF A O AL
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*ModelSeries460Shown
Chipper Shredder- Model Series 450 and 460
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,itshouldbemaintainedineffectiveworkingorderbytheoperator.IntheStateofCaliforniatheaboveisrequiredbylaw
(Section4442oftheCaliforniaPublicResourcesCode).Otherstatesmayhavesimilarlaws.Federallawsapplyonfederallands.A sparkarrester
forthemufflerisavailablethroughyournearestengineauthorizedservicedealeror contacttheservicedepartment,RO.Box361131Cleveland,
Ohio44136-0019.
PRINTEDIN U.S.A.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
FORMNO.770-10048J
5/9/2007
This Operator's IVlanual is an important part of your new chipper shredder, it will help you assemble, pre-
pare and maintain the unit for best performance. Please read and understand what it says.
Table of Contents
Customer Support .............................................. 2
Safety Labels ...................................................... 3
Safe Operation Practices ................................... 4
Setting UpYour Chipper Shredder .................... 6
Operating Your Chipper Shredder ................... 10
Maintaining Your Chipper Shredder ................ 12
Troubleshooting ................................................ 14
Parts List ........................................................... 16
Warranty ............................................................ 20
EspaSol .............................................................. 21
Finding and Recording Model Number
BEFOREYOU STARTASSEMBLING
YOURNEW EQUIPMENT,
pleaselocate the model plateon the equipment and copy
the informationtothe samplemodel plate providedto the
right.Youcan locatethe modelplate by standing behind the
unitand looking down at the frame belowtheengine.This
informationwill benecessary to usethe manufacturer'sweb
site and/or obtainassistancefromthe CustomerSupport
Departmentoran authorizedservice dealer.
r
Model Number
®
www.mtdproducts.com
Serial Number
MTD LLC
P.O. BOX 361131
CLEVELAND, OH 44136
330 -220-4683
800-800-731 0
Customer Support
Please do NOTreturn the unit to the retailer from which it was
purchased, without first contacting Customer Support.
Ifyou havedifficultyassemblingthis productor haveany questionsregardingthecontrols, operation,or maintenanceof this
unit,youcan seek helpfrom the experts. Choosefromthe optionsbelow:
1. Visitmtdproducts.com. Click onthe CustomerService menuoption.
2. Phone a CustomerSupport Representativeat 1.800.800.7310. Spanishspeakingagentsare available.
3. Theengine manufacturer isresponsiblefor all engine-related issueswith regards to performance,power-rating,specifica-
tions,warrantyand service. Pleaserefer tothe engine manufacturer'sOwner's/Operator'sManual, packedseparatelywith
your unit,for more information.
2
Safety Labels Found On Your
Chipper Shredder
TO AVOID SERIOUS iNJURY:
° Do not operate on uneven ground where unit is
unstable. Do not operate on pavement, gravel or
other hard surfaces since objects can ricochet
and cause injury.
To avoid a fire hazard, keep leaves, grass, and other
combustible materials away from hot engine and
muffler,
° Keep children and others away from area of
operation.
° Wear approved safety glasses, gloves and ear
protection.
TO AVOID SERIOUS iNJURY:
Read the owner's manual(s) before starting and
using unit.
Keep all shields and guards in place and securely
attached.
Keep hands, feet, face, clothing and long hair out of
Shredder Hopper, Chipper Chute and Discharge
Chute while the engine is running. Rotating cutting
blades inside these openings will cause serious
personal injury if contacted. Material being
_rocessed
may bounce back from inlet openings or be thrown
from the discharge chute. Long hair or loose clothing
may be pulled sucked into the inlet openings.
Do not place branches over 1/2 inch diameter into
the large Shredder Hopper. Branches over 1/2 inch in
diameter should be placed in the Small Chipper
Chute.
If the chipped shredder jams or becomes clogged,
immediately shut off the engine and wait for all
moving parts to come to a complete stop before
clearing.
Do not install remove, adjust, or service the
discharge screen or any other part while the engine
is running. Blade contact can occur.
Labels
WARNING
DO NOTremove safety
(or any) labels from
chipper shredder for
any reason.
3
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 complywith these
instructionsmay result
i inpersonalinjury.When
youseethis symbol.
i HEED ITS WARNING!
i Your Responsibility
Restrictthe use
ofthis powermachine
to personswho read.
i understand
andfollow thewarnings
and instructions
i inthis manual
and onthe machine.
WARNING: EngineExhaust,some of its constituents,andcertain vehiclecompo-
nentscontain or emit chemicals knownto Stateof Californiato cause cancerand
birth defectsor other reproductiveharm.
DANGER: Thismachinewas builtto beoperatedaccordingto the rulesfor safe operation inthis
manual.As with anytypeof powerequipment,carelessnessor erroronthe part ofthe operatorcan
result inseriousinjury.This machine iscapableof amputatinghands andfeet andthrowing objects.
Failureto observethe followingsafety instructionscould resultinserious injuryordeath.
Training
1. Read,understand,andfollowall instructionsonthe ma- 1.
chineandin the manual(s)beforeattemptingtoassemble
andoperate.Keepthismanualinasafe placeforfuture
andregularreferenceandfor orderingreplacementparts.
2. Befamiliarwithallcontrolsandtheirproperoperation. 2.
Knowhowtostopthe machineanddisengagethem
quickly.
3. Neverallowchildrenunder16yearsoldto operatethis
machine.Children16yearsoldandovershouldreadand 3.
understandthe operationinstructionsandsafetyrulesin
thismanualandshouldbetrainedand supervisedbya
parent.
4. Neverallowadultstooperatethismachinewithoutproper
instruction. 4.
5. Keepbystanders,helpers,pets,and childrenat least
75feetfromthe machinewhile it isin operation.Stop
machineif anyoneentersthe area.
6. Neverrunan engineindoorsor inapoorlyventilatedarea. 5.
Engineexhaustcontainscarbonmonoxide,anodorless
anddeadlygas. 6.
7. Do notputhandsandfeet nearrotatingpartsorin the
feedingchambersanddischargeopening.Contactwith
the rotatingimpellercanamputatefingers,hands,and
feet.
8. Neverattemptto unclogeitherthefeedintakeor
dischargeopening,removeor emptybag,or inspectand
repairthe machinewhilethe engineis running.Shutthe
engineoff andwait untilallmovingpartshavecometo a
completestop.Disconnectthesparkplugwireandground
it againsttheengine.
Preparation
Thoroughlyinspectthe areawheretheequipmentisto
beused.Removeall rocks,bottles,cans,or otherforeign
objectswhichcouldbe pickedupor thrownandcause
personalinjuryor damageto the machine.
Alwayswearsafetyglassesor safetygogglesduringopera-
tionor whileperforminganadjustmentor repair,to protect
eyes.Thrownobjectswhichricochetcancauseserious
injurytothe eyes.
Wearsturdy,rough-soledworkshoesand close-fitting
slacksandshirts. Loosefittingclothesor jewelrycan be
caughtin movableparts.Neveroperatethis machine
in barefeetor sandals.Wearleatherworkgloveswhen
feedingmaterialinthechipperchute.
Beforestarting,checkallboltsand screwsfor propertight-
nessto besurethe machineisin safeworkingcondition.
Also,visuallyinspectmachineforanydamageatfrequent
intervals.
Maintainorreplacesafetyandinstructionslabels,as
necessary.
Toavoidpersonalinjuryor propertydamageuseextreme
careinhandlinggasoline.Gasolineisextremelyflammable
andthe vaporsareexplosive.Seriouspersonalinjurycan
occurwhengasolineis spilledonyourselforyourclothes
whichcanignite.Washyourskinand changeclothes
immediately.
a. Useonlyanapprovedgasolinecontainer.
b. Extinguishallcigarettes,cigars,pipes,andother
sourcesofignition.
c. Neverfuel machineindoors.
d. Neverremovegascap oradd fuelwhilethe engineis hot
or running.
e. Allowengineto coolat leasttwo minutesbeforerefuel-
ing.
f. Neveroverfillfueltank. Filltankto nomorethan1/2
inchbelowbottomoffiller neckto providespacefor fuel
expansion.
g. Replacegasolinecap andtightensecurely.
h. If gasolineis spilled,wipeitoff theengineand equip-
ment.Movemachinetoanotherarea.Wait5minutes
beforestartingtheengine.
i. Neverstorethe machineorfuel containerinsidewhere
there isan openflame,spark,or pilotlight(e.g.furnace,
waterheater,spaceheater,clothesdryer,etc.)
j. Toreduceafire hazard,keepmachinefreeofgrass,
leaves,or otherdebrisbuild-up.Cleanupoilor fuel
spillageandremoveanyfuel soakeddebris.
k. Allowmachinetocoolat least5 minutesbeforestoring.
4
Operation
1. Donot puthandsandfeet nearrotatingpartsorin the
feedingchambersanddischargeopening.Contactwith the
rotatingimpellercanamputatefingers,hands,andfeet.
2. Beforestartingthe machine,makesurethe chipperchute,
feedintake,and cuttingchamberareemptyandfreeofall
debris.
3. Thoroughlyinspectall materialto beshreddedandremove
any metal,rocks,bottles,cans,orotherforeignobjects
whichcouldcausepersonalinjuryor damagetothe
machine.
4. f it becomesnecessaryto pushmaterialthroughthe
shredderhopper,usea smalldiameterstick. Do notuse
yourhandsorfeet.
5. f the impellerstrikesaforeignobject or ifyourmachine
shouldstartmakinganunusualnoiseor vibration,
immediatelyshuttheengineoff.Allowthe impellertocome
to acompletestop.Disconnectthe sparkplugwire,ground
itagainstthe engineandperformthe followingsteps:
a. Inspectfordamage.
b. Repairorreplaceanydamagedparts.
c. Checkfor anyloosepartsandtightento assure
continuedsafeoperation.
6. Donotallow anaccumulationof processedmaterialtobuild
upinthe dischargearea.Thiscan preventproperdischarge
andresultin kickbackof materialthroughthefeedopening.
7. Donotattemptto shredorchipmateriallargerthan
specifiedonthe machineor inthis manual.Personalinjury
or machinedamagecouldresult.
8. Neverattemptto unclogeitherthe feedintakeordischarge
openingwhilethe engineisrunning.Shutthe engineoff,
wait untilall movingpartshavestopped,disconnectthe
sparkplugwireandgroundit againsttheenginebefore
clearingdebris.
9. Neveroperatewithouttheshredderhopper,chipperchute,
or chutedeflectorproperlyattachedto the machine.Never
emptyor changedischargebagwhiletheengineis running.
10.Keepall guards,deflectorsand safetydevicesin placeand
operatingproperly.
11.Keepyourface andbodybackandtotheside ofthe chipper
chutewhilefeedingmaterialintothe machineto avoid
accidentalkickbackinjuries.
12.Neveroperatethis machinewithoutgoodvisibilityor light.
13.Donotoperatethis machineon apaved,gravelor non-level
surface.
14.Donotoperatethis machinewhileunderthe influenceof
alcoholordrugs.
15.Mufflerandenginebecomehotandcan causeaburn.Do
nottouch.
16.Neverpickupor carrymachinewhilethe engineisrunning.
Maintenance & Storage
1. Nevertamperwithsafetydevices.Checktheirproper
operationregularly.
2. Checkboltsand screwsforpropertightnessatfrequent
intervalstokeepthe machineinsafeworkingcondition.
Also,visuallyinspectmachineforanydamageandrepair,if
needed.
3. Beforecleaning,repairing,or inspecting,stopthe engine
andmakecertainthe impellerandall movingpartshave
stopped.Disconnectthe sparkplugwireand groundit
againsttheengineto preventunintendedstarting.
4. Do notchangetheenginegovernorsettingsoroverspeed
theengine.Thegovernorcontrolsthemaximumsafe
operatingspeedoftheengine.
5. Maintainor replacesafetyandinstructionlabels,asneces-
sary.
6. Followthismanualforsafe loading,unloading,transporting,
andstorageofthis machine.
7. Neverstorethe machineorfuel containerinsidewhere
thereisan openflame,sparkor pilotlightsuchas a water
heater,furnace,clothesdryer,etc.
8. Alwaysreferto theoperator'smanualforproperinstructions
onoff-seasonstorage.
9. Ifthefueltank hasto bedrained,dothisoutdoors.
10.Observeproperdisposallawsandregulationsforgas,oil,
etc.toprotectthe environment.
Do not modify engine
Toavoidseriousinjuryordeath,donot modifyengineinany
way.Tamperingwiththegovernorsettingcan leadto arunaway
engineandcauseit tooperateatunsafespeeds.Nevertamper
withfactorysettingofenginegovernor.
Notice regarding Emissions
Engineswhicharecertifiedto complywithCaliforniaandfederal
EPAemissionregulationsfor SORE(SmallOff RoadEquipment)
arecertifiedtooperateonregularunleadedgasoline,and may
includethefollowingemissioncontrolsystems:EngineModifica-
tion(EM)andThreeWayCatalyst(TWO)ifso equipped.
Your Responsibility
Restrictthe useofthis powermachineto personswhoread,un-
derstandandfollowthe warningsand instructionsin this manual
andonthe machine.
Practices
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!
Your Responsibility
Restrictthe use
of this powermachine
to personswho read.
understand
and followthe warnings
and instructions
in this manua
and onthe machine.
5
Shredder
IMPORTANT
This unitis shipped
without gasolineor
oil in the engine.Be
certainto service
enginewith gasoline
andoil as instructed
in the separateengine
manual beforeoperat-
ingyour machine.
NOTE: All references
in this manualto the
left or rightside of
thechipper shredder
isfrom the operating
i positiononly. Excep-
tions ifany willbe
specified.
NOTE:This Operators
i Manual coversa range
of productspecifica-
tions for various
models.Characteristics
and featuresdiscussed
and/or illustratedinthis
manualmay not be ap-
plicableto allmodels.
MTD LLCreservesthe
rightto change product
specifications,designs
and equipmentwithout
notice andwithout
=ncurringobligation.
Figure 3=1
IMPORTANT:Thisunitisshippedwithoutgasolineoroil
in theengine.Becertainto serviceenginewithgasoline
andoilas instructedintheseparateenginemanual
beforeoperatingyourmachine.
Loose Parts In Carton
a. HopperAssembly d. Bag
b. ChuteDeflector e.SafetyGlasses
c. ChipperChute f. EngineOil
Attaching The Hopper
Assembly
1. a. Removesixhexnutsandwashersfromtheweld
studsontheimpellerhousing.Donotremovethe
supportplate.SeeFigure3-1.
b. Placehopperassemblyintopositioninfrontof
impellerhousing,aligningholesinhopperassembly
collarwithweldstuds.
c. Slidehopperassemblyontoweldstudsandreplace
washersandhexnuts.Donottightencompletely.
2. a. Lift hopperassemblyupto impellerbracket
assembly.
b. Slidethereleaserodoutslightlyto hookthehopper
bracketontothe rod.SeeFigure3-2.
c. Tightenthe sixhexnutsthatsecurehopper
assemblyto impellerhousingandalsotightenthe
hexnutsthatsecurehopperbrackettohopper
assembly.
Figure 3-2
Figure 3-3
6
Attaching The Chute Deflector
3. a. Removethewingknobsfromeachsideofthelower
impellerhousing.
b. Removethehexlocknut,spacers,andhexboltfrom
thetopoftheimpellerhousing.SeeFigure3-3.
4. a. Alignthechutedeflectorinpositionon the
dischargeopeningand inserthexboltwithspacer
throughhingeon chutedeflector(spacersfit inside
of hinges).SeeFigure314.
b. Placesecondspaceroverhexboltinsideother
hingeandsecurewithhexlocknut.
c. Securebothsidesofchutedeflectorto impeller
housingusingwingknobspreviouslyremoved.
Attaching The Chipper Chute
(Model Series 460)
5. a. Removethethreecuppedwashersand hexnuts
fromweldstudsaroundtheopeningonthesideof
theimpellerhousing.SeeFigure3-5.
b. Removethehexbolts,flat washers,andlocknuts
fromthetwoholeson theupperendofthesupport
brace.
6. a. Alignthechipperchuteovertheweldstuds,sothe
slotinthebottomofthechuteisfacingdown.
b. Securechipperchutewiththethreecupped
washers(cuppedsideagainstthechipperchute)
and hexnutspreviouslyremoved.Donottighten
thenutsatthistime.SeeFigure316.
Figure 3-4
f
Fgure 3=5
/
/
/
/ /
/
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/
/
..........1,/
/
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/
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/
Figure 3=6
Your Chipper
Sh redder
IMPORTANT
This unitis shipped
without gasolineor
oil in the engine. Be
certainto service
enginewith gasoline
and oil as instructed
in the separate engine
manual beforeoperat-
ingyour machine.
NOTE: All references
in this manualto the
leftor rightsideof
the chipper shredder
isfromthe operating
positiononly. Excep-
tions, if any,will be
specified.
NOTE: This Operators
Manual coversa range
of productspecifica-
tionsfor various
models.Characteristics
andfeaturesdiscussed
and/or illustratedinthis
manual may not be ap-
plicableto allmodels.
MTD LLC reservesthe
rightto change product
specifications,designs
and equipmentwithout
notice andwithout
_ncurringobligation.
7
Settingup
MPORTANT
This unitis shipped
without gasolineor
oil in the enginelae
certainto servce
enginewith gasoline
an_Joilas instructed
in the separateengine
manUaIbeforeope!at-
ingyour machine
NOTE: All references
in this manual tOthe
left or right side of
the chipper shredder
iSfromthe operating
positiononlylExcep;
tions,if any, wIibe
specified:
i
NOTE: This Operators
ManUalcoversa range
Of productspecifiCa:
tionsfor Various
mode!s:Characteristics
and featuresdiscussed
andior ilUstratedinthiS
manual may not be ap,
plicabletoali models!
MTD LLC reservesthe
right tochange product
specificationsidesigns
andequipment wthout
notice and without
incurringobligationl
Figure 3-7
/
/
/
/
ji
//
// ///
//
/
7. Thechippershredderwasshippedwithoneendof
thesupportbracealreadysecuredtothelowerframe.
Loosenbutdo notremovetheboltssecuringthebrace
totheframe.See Figure3-7.
a. Aligntheholesinthechutewiththeholesinthetop
ofthebraceandattachbracetochipperchutewith
hardwarepreviouslyremoved.Tightensecurely.
b. Tightenthe boltssecuringthesupportbracetothe
frame.
c. Tightenthethreenutson theweldstudsholding
thechipperchuteto theimpellerhousing.
Attaching The Chipper Chute
(Model Series 450)
8. a. Removethethreecuppedwashersandhexnuts
fromweldstudsaroundtheopeningon thesideof
theimpellerhousing.SeeFigure3-8.
Figure 3=8
8
Figure 3=9
Figure 3=10
f
/
/
9. a. Alignthechipperchuteovertheweldstuds,sothe
slotinthebottomofthechuteisfacingdown.
b. Securechipperchutewiththethreecupped
washers(cuppedsideagainstthechipperchute)
and hexnutspreviouslyremoved.Tightenthenuts
atthis time.SeeFigure3-9.
Attaching The Bag
10.Toattachthebag:
a. Placetheopeningofthebagcompletelyoverthe
chutedeflector.
b. Pullon thedrawstringuntilthebagistightaround
chutedeflectoropening.
c. Clipdrawstringbackon itself,tightagainstchute
deflectorto secureintoposition.SeeFigure3-10.
Setting Up
YourChippe
Shredder
MPORTANT
This unitiSshipped
without gaso ineor
oilin the enginelBe
Certain to service
engine with gasoline
and Oilas instrUCted
theseparate engine
manualbefore operati
ingyour machine:
NOTE: All references
this manual tothe
left or rightside of
thechipper shredder
isfromthe operating
position only. Excepi
tions, if any.will be
specified:
NOTE: This OPerators
ManUal covers a range
of product specifiCa,
tions for Various
models: CharacteriStics
andfeaturesdiscussed
and/or iilustrated inthis
manual may notbe ap.
plicable to all models:
MTD LLC reservesthe
rightto Changeproduct
specifications; designs
and equipmentwithout
notice and w thout
incurr ng Obligationl
9
Know Your Chipper Shredder
Operating
WARNING
The operation of any
chipper shredder
can resuffin foreign
objects being thrown
intothe eyes, which
candamageyour
eyesseverely. Always
wear the safety
glassesprovided
with this unit or eye
shields before chip-
i pingor shredding
and while performing
any adjustments or
repairs.
Use extreme care
when handling
i gasoline.Gasoline is
i extremely flammable
and the vapors are
explosive. Never fuel
i the machine indoors
or while the engine
is hot or running.
i Extinguish cigarettes,
cigars, pipesand
other sources of
ignition.
HopperAssembly-
ReleaseRod
Chipper
*Model464Shownwith0 TowBar
@
1-If Equipped
Figure 4=1
Nowthatyouhavesetupyourchippershredderfor
operation,getaquaintedwithits controlsandfeatures.
Thesearedescribedbelowandillustratedonthis page.
Thisknowledgewillallowyoutouseyournewequip-
mentto itsfullestpotential.
Chipper Chute
Allowstwigsandsmallbranchesup to3"(2"for Model
Series450)indiametertobefedintothe impellerfor
chipping.SeeFigure4-1.
Hopper Assembly
Allowleavesandsmallbranchesupto 1/2diameter
tobefedintotheimpellerforchippingandshredding.
Materialcanbe rakedintohopperassemblybylowering
thehopperassembly.SeeFigure4-1.
Gas and Oil Fill-Up
1. Checkoillevelandaddoil if necessary.Followengine
manualforthis.SeeEngineManualforlocationofthe
oilfill.
2. Servicetheenginewithgasolineasinstructedinthe
enginemanual. SeeEngineManualforlocationof
gasfill.
WARNING:Useextremecarewhenhan-
dling gasoline.Gasolineisextremely
flammableand the vapors areexplosive.
NeverfueJthe machine indoorsor while
the engine ishot or running. Extinguish
cigarettes, cigars, pipesand other
sources of ignition.
Release Rod
Thereleaserodislocatedon theimpellerbracket
assemblyandit isusedto releaseor lockthehopper
whenraisingor lowering.See Figure4-1.
Tow Bar (if Equipped)
Usethetow bartotowthechippershredderbehinda
tractortoajobsite.See Figure4-1.
NOTE:Ifyourunitisnotequippedwitha towbar,you
maycontactCustomerSupportasinstructedon page2
forinformationregardingpriceandavailability.
WARNING:Theoperation of any
chippershredder canresultinforeign
objects being thrown intothe eyes,
which candamageyour eyesse-
verely.Always wearthe safety glasses
providedwith this unit or eyeshields
before chippingor shredding andwhile
performingany adjustments or repairs.
10
ThisOperatorsManualcoversa rangeof product /" _
specificationsforvariousmodels.Characteristicsandfea- _ //1
turesdiscussedand/orillustratedinthismanualmaynot _,,= _ //[
be applicabletoallmodels.MTDLLCreservestheright ._ _IiI_
tochangeproductspecifications,designsandequipment _
withoutnoticeandwithoutincurringobligation.
Starting Engine (
flARNING: Neverrun the engine
indoorsor in a poorlyventilatedarea.
Engine exhaustcontainscarbonmonox-
ide,an odorless and deadly gas.
IMPORTANT:Becausethismanualcoversseveral
differentmodelunits,differentstartinginstructionsmay
applytoyourparticularengine.Someenginesmayhave
a fuelpetcock,somemaynot.Someenginesmayhave
On/Offswitches,othermaynot.Someunitswillutilizea
chokesystem,whileotherswill requirepriming. These
factorsdependon whatmakeandmodelenginecomes
withyourparticularunit.Forthesereasons,pleaserefer
totheengineoperator'smanualforthecorrectstarting
procedure.
1. Attachsparkplugwiretosparkplug.Makecertain
themetalcapon theend ofthesparkplugisfastened
securelyoverthemetaltiponthesparkplug.
2. Engineswith choke lever:
Movechokeleveronengineto CHOKEposition.(A
warmenginemaynotrequirechoking).
Engineswith primer:
Primeengineasinstructedinseparateenginemanual.
3. Thethrottlecontrolleverislocatedontheengine.
MoveenginethrottlecontrollevertoFASTor START
position.SeeFigure4-2.
4. Graspstarterhandleand pullropeoutslowlyuntil
enginereachesstartofcompressioncycle(ropewill
pull slightlyharderatthis point).
NOTE:A noisewillbeheardwhenfindingthestartof
thecompressioncycle.Thisnoiseiscausedbytheflails
andfingers,whichare partoftheshreddingmechanism,
and itshouldbeexpecteduntiltheimpellerreachesfull
speed.
5. Pullropewitha rapid,continuous,fullarmstroke.
Keepa firmgriponstarterhandle.Letroperewind
slowly.
6. Repeatthepreviousstepsuntilenginefires.When
enginestarts,movechokecontrol(ifequipped)
graduallyto RUNposition.
Figure 4=2
Stopping Engine
1. MovethrottlecontrollevertoSTOPor OFFposition.
2. Disconnectsparkplugwirefromsparkplugand
groundagainsttheengine.
NOTE:Seeyourenginemanualpackedwithyourunit
formoredetailedinstructions.
Using The Chipper Shredder
Yardwastesuchasleavesandpineneedlescanbe
rakedupthroughthehopperassemblyforshredding.
Aftermaterialhasbeenshreddedbytheflailblades
ontheimpellerassembly,itwillbedischargedoutof
openingor intocatcherbag.Donotattempttoshred
orchipanymaterialotherthanvegetationfoundina
normalyard(i.e.branches,leaves,twigs,etc.)Avoid
fibrousplantssuchastomatovinesuntiltheyare
thoroughlydriedout. Twigsandsmallbranchesupto3"
(2"forModelSeries450)indiameter canbefedinto
thechipperchute.
Lowering The Hopper Assembly
1. Withonehandgraspthehandleatthetopofthe
hopperassemblyandlift slightly.
2. Withtheotherhandpulloutonthe releaserod
andlowerthehopperassemblytotheground.See
Figure4-1.
To Empty Bag
1. Un-clipdrawstringand loosenbagfromchute
deflectoropening.
2. Emptybagandreattachtothedischargechute
opening.Pullonthedrawstringuntilthebagistight
aroundthechuteopeningandclipthedrawstring
tightagainstthechutedeflector.
IMPORTANT:Theflailscreenislocatedinsidethe
housingin thedischargearea.iftheflail screen
becomesclogged,removeandcleanasinstructedin
SECTION5: MAINTAININGYOURCHIPPERSHRED-
DER.Forbestperformance,itisalsoimportantto keep
thechipperbladesharp.
Operat.ing
¥o
WARNING
. vorr.°t,oe°g oo
indoorsor in a poorly
Ventilated area: Engine
exhaust contains
carbon monoxide, an
odorless and deadly
NOTE:A noisewillbe
heardwhenfindingthestart
ofthe compressioncycle.
Thisnoiseiscausedby
theflailsandfingers,which
arepartoftheshredding
mechanism,anditshould
L_eexpecteduntilthe impel-
er reachesfullspeed.
11
Lubrication
WARNING
Alwaysstopengine,
disconnectspark
plug,andground
againstengine
beforecleaning,
lubricatingor
doinganykindof
maintenanceonyour
machine.
points before
reassembly.
*Model464Shown
Figure 5-1
/
/*Model464 Shown
Figure 5-2
General Recommendations
1. Alwaysobservesafetyruleswhenperforming
anymaintenance.
2. Thewarrantyon thischippershredderdoesnot
coveritemsthathavebeensubjectedtooperator
abuseornegligence.Toreceivefullvaluefromwar-
ranty,operatormustmaintainthechippershredder
asinstructedhere.
3. Changingofengine-governedspeedwillvoid
enginewarranty.
4. Alladjustmentsshouldbecheckedat leastonce
eachseason.
5.
Periodicallycheckallfastenersand makesurethese
aretight.
_ WARNING:Alwaysstopengine,
disconnect sparkplug, and ground
against enginebeforecleaning,
lubricating or doingany kind of
maintenanceon yourmachine.
1. Lubricatethereleaserodand springwithlightoil once
a season.SeeFigure5-1.
2. Lubricatethepivotpointsonthehopperassemblywith
lightoil oncea season.SeeFigure5-1.
3. Lubricatethepivotpointsonthedischargechutewith
lightoil oncea season.SeeFigure5-1.
4. Followtheaccompanyingenginemanualforlubrica-
tionscheduleandinstructionforenginelubrication.
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.
Removing The Flail Screen
If thedischargeareabecomesclogged,removetheflail
screenandcleanareaasfollows:
1. Stoptheengineandmakecertainthechippershred-
derhascometoa completestop.
2. Disconnectsparkplugwirefromsparkplugand
groundagainsttheengine.
3. a. Removethebagandtwo wingknobson eachside
ofthechutedeflector.See Figure5-2.
b. Liftthechutedeflectorupto keepitoutof theway.
c. Removethetwohairpinclipsfromeachclevispin
whichextendthroughthehousingandremovepins.
d. Removetheflailscreenfrominsidethehousing
andcleanthescreenbyscrapingor washingwith
water.SeeFigure5-2.
4. Reinstallthescreen,makingcertainto reassemblethe
flailscreenwiththecurvesidedown.
5. Reattachthechutedeflectorwiththehardware
previouslyremovedandconnectthebagtounit.
Sharpening Or Replacing Chipper
Blades
1. Disconnectthesparkplugwireandgroundagainstthe
engine.
2. Removetheflailscreenasinstructedintheprevious
section.
3. Removethechipperchutebyremovingthreehexnuts
andwashers.
4. Removethechipperchutesupportbrace(Model
Series460)fromtheframebyremovingthehexbolts.
5. Rotateimpellerassemblybyhanduntilyoulocateone
oftwochipperbladesinthechipperchuteopening.
12
6. Removethebladebyremovingtheinternalhex
screws,lockwashers,andhexnutswhichsecureitto
theimpeller.Retainthehardware.SeeFigure5-3.
NOTE:Usea 3/16"hexkey(Allen)wrenchontheoutside
ofthebladeanda 1/2"box(or socket)wrenchonthe
insideoftheimpeller.HoldtheAllenwrenchstationary
and rotatethebox(or socket)wrenchto loosenthenut.
7. Installa replacementblade(PartNo.781-0490)with
thehardwareremovedearlieror sharpen.
IMPORTANT:Whensharpeningtheblade,protecthands
byusinggloves.Followtheoriginalangleofgrindand
makesuretoremovean equalamountfromeachblade.
Figure 5-3
8. Toreplacetheotherblade,rotatetheimpellerto
exposethesecondbladeandrepeatthestepsabove.
NOTE: Makecertainbladesarereassembledwiththe
sharpedgefacingupward.Torquehardwareto250- 300
in.Ibs.
,_ WARNING:Theimpeller's chipper
blades and shredderbladeare sharp.
Wearleatherwork gloves to protect your
hands.
Sharpening Or Replacing The Shred-
der Blade
1. Stoptheengineand makecertainthatall moving
partshavecometoacompletestop.
2. Disconnectthesparkplugwireandgroundagainstthe
engine.
3. Lowerthehopperassemblyandblockupthehousing.
4. Removethesixhexlocknutsandflatwashers
fromtheweldstudson theflailhousing.Retainthe
hardware.
5. Carefullyseparatethehopperassemblyfromthe
impellerassemblyandremovethesupportplate.
NOTE:Whenreassemblingthe supportplate,make
certaintheembossedtabfacesinwardtowardsthe
impeller.
6. Removethetwowingknobsandcuppedwashersthat
securethechutedeflectorandraisethechute.
7. Inserta 1/2"or3/4"diameterpipethroughtheflail
screenintotheimpellertokeepit fromturningor
removetheflailscreenand inserta pieceofwoodinto
thechuteopening.
8. a. Removethetwointernalhexscrews,lockwashers,
and hexlocknutswhichsecuretheshredderblade
totheimpeller.
b. Removethehexbolt,lockwasher,andflatwasher
tocompletelyfreeshredderblade.See Figure5-4.
Figure 5-4
NOTE:Usea3/16"hexkey(Allen)wrenchon the
outsideoftheshredderbladeanda 1/2"box(orsocket)
wrenchontheinsideoftheshredderblade.Holdthe
Allenwrenchstationaryandrotatethebox(orsocket)
wrenchtoloosenthenut. Usecautionwhenremoving
thebladetoavoidcontactingtheweldstudson housing.
IMPORTANT:Whensharpeningtheblade,follow
theoriginalangleofgrindasa guide.It isextremely
importantthateachcuttingedgereceivesanequal
amountofgrindingtopreventan unbalancedblade.
Anunbalancedbladewillcauseexcessivevibration
whenrotatingathighspeedsandmaycausedamage
totheunit.Thebladecanbetestedbybalancingiton a
screwdriveror nail.Removemetalfromtheheavyside
untilitisbalancedevenly.
Storing Your Chipper Shredder
Thefollowingstepsshouldbetakento prepareyour
chippershredderforstorage.
1. Cleantheequipmentthoroughly.
2. Wipeequipmentwithanoiled ragto preventrust.
3. Refertoenginemanualforcorrectenginestorage
instructions.
4. Storeunitin a clean,dryarea.Donotstorenextto
corrosivematerialssuchasfertilizer.
13
Maintaining
Your Chipper
Shredder
WARNING
The impelleCs
chipper blades and
shredder blade are
sharp: Wear leather
work gloves to
IMPORTANT
Makecertainchipper
blades are reassem:
bledwith the sharp
edgefacing upwar&
Torquehardwareto
250,300 in.Ibs.
iMPORTANT
When reasSemblingthe
shredderblade,tighten
center bolt tObetween
550 and 700ini,lb&
andthe twoOutboltsto
between 250 and350
in.4b&
Forrepairs beyond
the minor adjustments
listed here, contact
an authorized service
Problem Cause Remedy
Enainef., ailsto Start I Throttle levernotin correctStarting i Movethrott, e everto FASTor
post on (f equpped) STARTpost on
2, Sparkp!ugwiredisconnected, 2, Connectwiretosparkp!ug,
chokenotincHoKEposition(if cHOKE
equipped): poSiti0nl
FueltankemptyorSta!efuel. tankwithclean,freShgasolinel
&Engine not pdmed(ifequipped)Prime engineas.instructedin
6 Faut ark _ 6 ceanadjuStgap 0rrepace
ysp P g: !
Blockedfuel CleanfueI
81Engine flooded, &Wait afew minutestoFestart,but
do notprme:
.
2.
3.
4.
5.
Engineruns erratic
Sparkplugwireloose.
UnitrunningonCHOKE(ifequipped).
Blockedfuellineor stalefuel.
Ventingascapplugged.
Waterordirt infuelsystem.
6. Dirtyaircleaner.
7. Carburetoroutofadjustment.
1. Connectandtightenspark
plugwire.
2. MovechokelevertoOFFposition.
3. Cleanfuelline;filltankwithclean,
freshgasoline.
4. Clearvent.
5. Drainfueltank.Refillwith
freshfuel.
6. Refertoenginemanual.
7. Seeauthorizedservicedealer.
Engineoverheats 1. Engineoil levellow. _ 1. Fillcrankcasewithproperoil.
2. Dirtyaircleaner. I 2. Refertoenginemanual,
3. Carburetornotadjustedproperly.
Occasionalskips
(hesitates)at
highspeed
Unit does not
discharge
1. Sparkpluggaptooclose.
2. Carburetoridlemixtureadjustment
improperlyset.
1. Chutedeflectorclogged.
2. Foreignobjectlodgedin impeller.
3. LowengineRPM.
3. Seeauthorizedservicedealer.
1. Adjustgap to.030".
2. Seeauthorizedservicedealer.
1. Stopengineimmediatelyand
disconnectsparkplugwire.Clean
flailscreenandinsideofdischarge
opening.
2. Stopengineanddisconnectspark
plugwire.Removelodgedobject.
3. Alwaysrunengineatfullthrottle.
Rateof discharge 1 LowengineRPM. 1. Alwaysrunengineatfullthrottle.
slowsconsiderably I 2. Chipperbladedul. I 2. Replacechipperbladeor seeyour
or composition of authorzedservcedeaer.
dischargedmaterial I I
changes ,
14
NOTES
Use this page to make notes and write down important information.
15
Model Series 450 and 460
j_
i ¢/i
16
Ref. PartNo. Description
No,
1. 736-0217 LockWasher,3/8
2. 714-0149B CotterPin
3. 681-0048 WingKnob5/16-18
4. 681-0094 ChuteDeflectorAssembly
5. 711-0835 ClevisPin
6. 781-0457 ShredderScreen
7. 726-0211 U-Nut5/16-18
8. 750-0793 Spacer
9. 712-3027 HexLockNut,1/4-20
10. 712-3004A HexLockNut5/16-18
11. 736-0119 LockWasher5/16
12. 681-0117 InnerImpellerHousingAssembly
13. 710-3025 HexCapScrew5/16-18x.625
14. 710-0157 HexCapScrew5/16-24x.75
15. 781-0490 ChipperBlade
16. 710-1054 HexCapScrew5/16-24x 1.0
17. 681-0030 impellerAssembly
18. 712-0411 HexLockNut5/16-24
19. 781-0735 RetainerPinClip
20. 719-0329 FlailBlade
21. 711-0833B ClevisPin
22. 715-0166 Pin
23. 736-0247 FlatWasher3/8x 1.25
24. 742-0571 ShredderBlade
25. 710-1254 HexCapScrew3/8-24x2.25
26. 681-0004A OuterlmpellerHousingAssembly
27. 710-0825 HexCapScrew1/4-20x3.75
28. 781-0515 FrontSupportBracket
29. 781-0574 ShredderPlate
30. 681-0104 RearHopperBracketAssembly
31. 732-0306 CompressionSpring1.75
32. 736-0117 FlatWasher
33. 714-0104 CotterPin
34. 736-0264 FlatWasher.330IDx.630OD
35. 710-0376 HexCapScrew5/16-18x 1.0
36. 748-0453 Spacer,.375IDx2.50 LG
37. 736-0362 FlatWasher.320IDx 1.25OD
38. 712-0429 HexLockNut5/16-18
39. 731-1710A HopperCollar
40. 681-0123 FrontHopperBracketAssembly
41. 711-1128 LockRod
42. 731-1707 HopperAssembly
43. 710-3008 HexCapScrew5/16-18x.75
17
££NUIN£
_FACTORY PARTS
TOorder replacement
parts, contact
1.8oo:8oo.7aloor
www:mtaprOaucts;oom
NOTE: This Operators
ManUalcoversa range
of productspecifiCa;
tionsfor Various
models:CharaCteristics
and featuresdiscussed
and/or illustrated inthis
manual may not be ap*
plicable to all model&
MTD LLC reservesthe
right to change product
specifications;designs
and equipmentwithout
noticeand without
incurring obligation
i__ _ii_: !_iiiiiiiii_!__ii _iii___i_i
i_ _ii_ _ii_ i _ i
i i i i i i i i i i i i ii
Model Series 450 and 460
,_20)
18
Ref. PartNo. Description
No,
1. 728-0175tt PopRivet
2. 681-0095t ChipperShredderChute
731-1899tt ChipperShredderChute
3. 735-0249tt ChuteFlap
4. 781-0633tt ChuteFlapStrip
5. 681-O068Att ChipperChuteAssembly
6. 710-0751tt HexCapScrew1/4-20x.620
7. 712-3027tt HexLockNut1/4-20
8. 710-0106tt HexCapScrew1/4-20x 1.25
9. 736-0173tt FlatWasher.28IDx.74OD
10. 736-0242 BellWasher.340ID x.872OD
11. 712-3010 HexNut5/16-18
12. 749-1004tt SupportBrace
13. 712-3004A HexLockNut5/16-18
14. 710-0805t HexCapScrew5/16-18x 1.50
710-3180tt HexCapScrew5/16-18x 1.75
15. 736-0170 BellWasher5/16x 1.0
16. 736-0366tt FlatWasher
17. 738-0814t AxleAssembly
738-0813tt AxleAssembly
18. 750-0786t Spacer
19. 734-1600t WheelComp.,10.0x2.5Plastic
734-1845tt WheelComplete,10.0x4.0Gray
20. 726-0214 PushCap
21. 681-0184At Frame
681-0183Aft Frame
22. 736-0451tt Washer,.3201Dx.93OD
23. 710-0502A Screw,3/8-16x 1.250
24. 737-0195t ElbowFitting
25. 737-0298tt Oil DrainPipe
26. 737-0132tt Oil DrainEndCap
27. 681-0133" TongueHitchMount
28. 681-0134A* BaseHitchMount
29. 710-3001" HexCapScrew,3/8-16x.88
30. 711-0299" ClevisPin,.625x2.4
31. 711-0835" ClevisPin,.50x4.62
32. 712-04065" FlangeLockNut,3/8-16
33. 732-0194" SpringPin
34. 736-0133" FlatWasher,.411x 1.25x 1.0
35. 736-0169" LockWasher,3/8
-- 723-0400 SafetyGlasses(NotShown)
-- 664-04022t ChipperBagAss'y(Not Shown)
-- 664-04023tt ChipperBagAss'y(NotShown)
t ModelSeries450
tt ModelSeries460
*if Equipped
19
££NUIN£
_FACTORY PARTS
TOorder replacement
parts, contact
1.8oo:aoo.Taloor
www:mtaprOaucts;oom
NOTE: This Operators
ManUalcovema range
of productspecifiCa;
tionsfor Various
models:CharaCteristics
and featuresdiscussed
and/or illustrated inthis
manual may not be ap*
plicable to all model&
MTD LLC reservesthe
right to change product
specifications;designs
and equipmentwithout
noticeand without
incurring obligation
i__ _iI_L!_iiiiiiiii_!__ii _iii___i_i
i i i i i i i i i i i i ii
MANUFACTURER'S LiMiTED WARRANTY FOR
The limited warranty set forth below isgiven byMTD LLCwith
respect to new merchandise purchased and used inthe United States
and/or its territories and possessions, and by MTD Products Limited
with respect to new merchandise purchased and used in Canadaand/
or its territories and possessions (either entity respectively, "MTD").
"MTD" warrants this product (excluding its Normal WearPartsand
Attachments as described below) against defects in material and
workmanship for a period of two (2) years commencing on the date
of original purchase and will, at its option, repair or replace,free of
charge, any part found to be defective in materials or workmanship.
This limited warranty shall only apply if this product has been
operated and maintained in accordance with the Operator's Manual
furnished with the product, and has not beensubject to misuse,
abuse, commercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water, or damage becauseof other
peril or natural disaster. Damage resulting from the installation or use
of any part, accessory or attachment not approved byMTD for use
with the product(s) covered bythis manual will void your warranty as
to any resulting damage.
Normal WearPartsare warranted to befree from defects in material
andworkmanship for a period of thirty (30) days from the date of
purchase. Normal wear parts include, but are not limited to items
such as: batteries, belts, blades, bladeadapters, tines, grass bags,
wheels, rider deck wheels, seats, snow thrower skid shoes, friction
wheels, shaveplates, auger spiral rubber and tires.
Attachments-- MTD warrants attachments for this product against
defects in material and workmanship for aperiod of one (1) year,
commencing on the date of the attachment's original purchase or
lease.Attachments include, but are not limited to items such as:
grass collectors and mulch kits.
HOWTO OBTAINSERVICE:Warranty service is available, WITH
PROOFOFPURCHASE,through your local authorized service dealer.
Tolocate the dealer in your area:
In the U.S.A.
Checkyour Yellow Pages,or contact MTD LLC at RO. Box 361131,
Cleveland, Ohio 44136-0019, or call 1-800-800-7310, 1-330-220-
4683 or log on to our Web site at www.mtdproducts.com.
In Canada
Contact MTDProducts Limited, Kitchener, ON N2G4J1, or call 1-800-
668-1238 or log onto our Web site at www.mtdcanada.com.
This limited warranty does not provide coverage inthe following
cases:
a. Theengine or component parts thereof. These items may carry a
separate manufacturer's warranty. Referto applicable manufactur-
er's warranty for terms andconditions.
b. Log splitter pumps, valves, and cylinders havea separate one-
yearwarranty.
c. Routine maintenance items such as lubricants, filters, blade
sharpening, tune-ups, brake adjustments, clutch adjustments,
deck adjustments, and normal deterioration of the exterior finish
dueto use or exposure.
d. Service completed by someone other than an authorized service
dealer.
e. MTD does not extend any warranty for products sold or exported
outside of the United States and/or Canada,and their respective
possessions and territories, exceptthose sold through MTD's
authorized channels of export distribution.
f. Replacement parts that are not genuine MTD parts.
g. Transportation charges and service calls.
h. MTD does not warrant this product for commercial use.
No implied warranty, includingany implied warranty of
merchantability of fitness for a particular purpose, applies after
the applicable periodof express written warranty above as to the
parts as identified. No other express warranty, whether written or
oral, except as mentioned above, given by any personor entity,
includinga dealer or retailer, with respect to any product, shall
bind MTD. Duringthe period of the warranty, the exclusiveremedy
is repair or replacement of the productasset forth above.
The provisionsasset forth in this warranty providethe sole and
exclusive remedy arising from the sale. MTD shall not be liable
for incidental orconsequential loss or damage including, without
limitation, expenses incurred for substitute or replacement lawn
care services or for rental expenses to temporarily replace a
warranted product.
Some states do not allow the exclusion or limitation of incidental
or consequential damages, or limitations on how long an implied
warranty lasts, sothe above exclusions or limitations may not apply
to you.
In no eventshaft recovery of any kind be greaterthan the amount of
the purchase price ofthe product sold. Alteration of safetyfeatures of
the product shall void this warranty. You assume the risk and liability
for loss, damage, or injuryto you and your property and/or to others
andtheir property arising out of the misuse or inability to use the
product.
This limited warranty shall not extend to anyone other than the
original purchaser or to the person for whom it was purchased as a
gift.
HOWSTATELAW RELATESTOTHIS WARRANTY: This limited
warranty givesyou specific legal rights, and you may also have other
rights which vary from state to state.
IMPORTANT:Owner must present Original Proof of Purchase to
obtain warranty coverage.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136=0019; Phone: 1=800=800=7310, 1=330=220=4683
MTD Canada Limited =KITCHENER, ON N2G 4J1; Phone 1=800=668=1238
GDOC-lO0015 REV.B
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MTD 450 SERIES Owner's manual

Category
Mini tillers
Type
Owner's manual
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