Toro Mk3 User manual

FormNo.3393-413RevB

MK3200mm(8in)or250mm

(10in)CuttingUnit

ModelNo.02800—SerialNo.315000001andUp

ModelNo.02801—SerialNo.315000001andUp

ModelNo.02802—SerialNo.315000001andUp

ModelNo.02810—SerialNo.315000001andUp

ModelNo.02811—SerialNo.314000001andUp

ModelNo.02812—SerialNo.315000001andUp

Registeratwww.Toro.com.

OriginalInstructions(EN)*3393-413*B

ThisproductcomplieswithallrelevantEuropean

directives.Fordetails,pleaseseetheDeclarationof

Incorporation(DOI)atthebackofthispublication.

Introduction

Readthisinformationcarefullytolearnhowtooperate

andmaintainyourproductproperlyandtoavoid

injuryandproductdamage.Youareresponsiblefor

operatingtheproductproperlyandsafely.

YoumaycontactT orodirectlyatwww.Toro.com

forproductsafetyandoperationtrainingmaterials,

accessoryinformation,helpndingadealer,orto

registeryourproduct.

Wheneveryouneedservice,genuineT oroparts,or

additionalinformation,contactanauthorizedToro

distributorandhavethemodelandserialnumbersof

yourproductready.Themodelandserialnumbers

arelocatedontheleftsideofthecuttingunit.Write

thenumbersinthespaceprovided.

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhas

safetymessagesidentiedbythesafety-alertsymbol

(Figure1),whichsignalsahazardthatmaycause

seriousinjuryordeathifyoudonotfollowthe

recommendedprecautions.

g000502

Figure1

1.Safety-alertsymbol

Thismanualuses2wordstohighlightinformation.

Importantcallsattentiontospecialmechanical

informationandNoteemphasizesgeneralinformation

worthyofspecialattention.

Contents

Safety.......................................................................3

SafetyandInstructionalDecals..........................3

Setup........................................................................4

1PreparingtheMachine.....................................4

2InspectingtheCuttingUnit...............................4

3ConvertingtheCuttingUnitfromLeftto

RightConguration.........................................4

4AdjustingtheHand-WheelAssemblies............5

5InstallingtheCuttingUnittothe

Machine..........................................................6

6LubricatingtheCuttingUnit..............................6

ProductOverview.....................................................7

Specications....................................................7

Attachments/Accessories...................................7

Operation..................................................................8

OperatingtheCuttingUnit..................................8

AdjustingthePivotKnuckle................................8

AdjustingtheHeightofCut.................................8

ClearingtheCuttingCylinders............................9

Maintenance...........................................................10

CheckingtheCuttingUnittoBedknife

Contact.........................................................10

GreasingtheCuttingUnit..................................10

CheckingtheRear-RollerBearing

Adjustment.....................................................11

CheckingRearRollerScraperWire

Tension..........................................................11

AdjustingtheContactBetweentheCylinder

andBottomBlade.........................................12

BacklappingtheCuttingUnit.............................13

GrindingtheCuttingUnit...................................13

ReplacingtheBottomBlade.............................14

8111LyndaleAvenueSouth

Bloomington,MN554202

Contactusatwww.Toro.com.

PrintedintheUK

AllRightsReserved

Safety

Thismachinehasbeendesignedinaccordancewith

ENISO5395:2013.

Improperuseormaintenanceofthisequipment

canresultininjuryordeath.Toreducethe

potentialforinjuryordeath,complywiththe

followingsafetyinstructions.

•Read,understand,andfollowallinstructionsinthis

Operator’sManualbeforeoperatingthecutting

unit.

•Lowerthecuttingunitstotheground,engagethe

parkingbrake,shutofftheengine,andremovethe

keyfromtheignitionswitchwheneveryouleave

themachineunattended.

•Besurethatthecuttingunitsareinsafeoperating

conditionbykeepingnuts,bolts,andscrewstight.

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea

ofpotentialdanger.Replaceanydecalthatisdamagedormissing.

decal40-13-010

40-13–010

1.Cuttinghazardofhand

2.Cuttinghazardoffoot

decal63-13-039

63–13–039

1.Height-of-cutadjustment

decal214053

214053

1.On-cutadjustment

Setup

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescriptionQty.Use

1Nopartsrequired–Preparethemachine.

2Nopartsrequired–Inspectthecuttingunit.

3Nopartsrequired–Convertthecuttingunitfromlefttoright

conguration.

4Nopartsrequired–Adjustthehand-wheelassemblies.

Pin1

Cap-headscrew2

Plainwasher2

5Springwasher2

Installthecuttingunitstothemachine.

6Nopartsrequired–Lubricatethecuttingunits.

WARNING

Theedgesofthecuttingcylinderandbottom

bladearesharp,andcontactwiththemcan

causeinjury.

Takecaretoavoidthesharpedgesofthe

cuttingcylinderandbottombladewhenlifting

orworkingonthecuttingunit.

WARNING

Thecuttingunitisheavy;liftingthecutting

unitimproperlycouldcauseinjury.

Usesuitableliftingequipmentwhenremoving

thecuttingunitfromthecartonandduring

installation.

PreparingtheMachine

NoPartsRequired

Procedure

1.Movethemachinetoalevelsurface.

2.Lowerthecuttingunitscompletelytotheground.

3.Shutofftheengineandremovethekey.

4.Engagetheparkingbrake.

5.Ensurethatthereisnopressureinthehydraulic

system.

6.Setthebattery-disconnectswitchtotheOFF

position.

InspectingtheCuttingUnit

NoPartsRequired

Procedure

1.Checkthatallpartsaredeliveredcorrectly.

2.Removethecuttingunitfromthecartonand

checkthatalllooseitemshavebeensupplied

correctly.

3.Ifanyitemsaremissingcontactyourauthorized

Torodistributor.

ConvertingtheCutting

UnitfromLefttoRight

Conguration

NoPartsRequired

Procedure

1.Removetheprotectivecoveranddiscardit

(Figure2).

2.Removethesnapring(Figure2).

Note:Thesnapringisttedtothedriveend

only.

g028847

Figure2

1.Snapring2.Protectivecover

3.RemovethecounterweightandO-ringand

installthemtothenon-driveend(Figure3).

g028848

Figure3

1.O-ring2.Counterweight

4.Tighteneachofthe2socket-headcapscrews

toatorqueof80N·m(59ft-lb).

5.Installthesnapringtothedriveend.

6.Repeattheprocedurefortheothercuttingunits.

AdjustingtheHand-Wheel

Assemblies

NoPartsRequired

Procedure

1.Removethenut,bolt,andwasherfromthe

alternativeholeposition(Figure4).

2.Removethe2nuts,2washers,springwasher,

andbearing-adjusterpinthatattachesthe

hand-wheelassemblytothecuttingunit,and

thenremovethehand-wheelassembly(Figure

4).

g028992

Figure4

1.Bolt5.Nut

2.Alternativeholeposition6.Springwasher

3.Hand-wheelassembly7.Bearing-adjusterpin

4.Washer

3.Adjustthehand-wheelassemblysothatthe

fasteningcenteriscorrect.

4.Installthehand-wheelassemblyinthe

alternativeholeposition.

5.Installallfastenersandtightensecurely.

6.Repeattheprocedurefortheothercuttingunits

asnecessary.

InstallingtheCuttingUnit

totheMachine

Partsneededforthisprocedure:

1Pin

2Cap-headscrew

2Plainwasher

2Springwasher

Procedure

Note:Wheninstallingthecuttingunittothemachine,

youmayneedtoadjustthepositionofthehand-wheel

assemblies.Referto4AdjustingtheHand-Wheel

Assemblies(page5).

1.Unlatchandlowertherelevantarmtothe

ground.

2.For200mmcuttingunitsonly:

Removethepinassemblyalreadyttedtothe

arm,anddismantletheM24nut,M24washer,

nutcap,andpear-dropbushing.Installthese

itemsontothe353mmlongpinsuppliedwiththe

cuttingunit.Fitthisassemblyontothearm.

For250mmcuttingunitsonly:

Usingthe400mmlongpinalreadyttedtothe

arm,removethenutcap,nut,andwasherfrom

thepin.

3.Slidethecuttingunitontothepinuntilthearm

bushmateswiththepivotcasting.

4.InstalltheM24washerandlocknutandtighten.

5.Loosenthenutby1/8to1/4turntoallowthe

cuttingunittopivotfreely.

6.Attachthecuttingunitmotortothedriveendof

thecuttingunitusingthefastenersalreadytted

tothemotormounting.

7.Tightentheboltstoatorqueof80N·m(59ft-lb).

LubricatingtheCuttingUnit

NoPartsRequired

Procedure

FillallthebearinghousingswithNo.2lithiumgrease.

Note:Thisrequiresasignicantquantityofgrease.

RefertoGreasingtheCuttingUnit(page10).

ProductOverview

Specications

200mmcuttingunit254mmcuttingunit

4blade6blade8blade10blade4blade6blade8blade

Modelno.02800028010280202803028100281102812

Weight72kg75kg78kg81kg80.5kg83.5kg90kg

Cylinder

diameter

20cm(8inch)25.4cm(10inch)

Cuttingwidth76.2cm(30inch)76.2cm(30inch)

Heightofcut1.2to8.0cm(0.5to3.15inches)1.2to8.0cm(0.5to3.15inches)

RefertoyourPartsCatalogforalistofrecommendedbladesforyourcuttingunit.

Attachments/Accessories

AselectionofToroapprovedattachmentsand

accessoriesisavailableforusewiththemachineto

enhanceandexpanditscapabilities.Contactyour

AuthorizedServiceDealerorDistributororgoto

www.T oro.comforalistofallapprovedattachments

andaccessories.

Tobestprotectyourinvestmentandmaintainoptimal

performanceofyourT oroequipment,countonT oro

genuineparts.Whenitcomestoreliability,T oro

deliversreplacementpartsdesignedtotheexact

engineeringspecicationofourequipment.Forpeace

ofmind,insistonT orogenuineparts.

Operation

Note:Determinetheleftandrightsidesofthe

machinefromthenormaloperatingposition.

OperatingtheCuttingUnit

Whenthemowerissetupwithxedcuttingunits,

theheightofcutisgaugedbytherearrollerand

thecuttingunitisallowedtopivotlaterallytofollow

groundcontours.Thisarrangementisrecommended

forgeneralmowingrequirements(Figure5).

g014423

Figure5

Heightofcutgauge:Anoptionalheightofcutgauge

isavailabletoassistinachievingaccuratecutheight

settings(Figure6).

g014426

Figure6

AdjustingthePivotKnuckle

SecuretheboltinthefrontxedholepositioninFigure

7asshown.

g014427

Figure7

1.Frontxedholeposition

AdjustingtheHeightofCut

1.Theheightofcutisgaugedbythepositionof

therearroller.Turntheadjustingnutassembly

bothendsclockwisetodecreasetheheightof

cutorcounter-clockwisetoincreasetheheight

ofcut(Figure8).

g014428

Figure8

1.Adjustingnutassembly2.Heightofcut

Important:Donotattempttounlockthe

nuts.

2.Ensurethatallcuttingunitsaresetatthesame

heightofcutbyeitherreferringtotheindicator

ringsorbyusingaheight-of-cutgaugeacross

thefullwidthofeachcuttingunitforgreater

accuracyasshown(Figure9).

g014429

Figure9

1.Indicatorrings

3.Ifthecentercuttingunitproducesahigherheight

ofcutthanthewingcuttingunits,setthecenter

cuttingunitheight-of-cutindicatorringlower

thantheindicatorringofthewingcuttingunits.

ClearingtheCutting

Cylinders

WARNING

Neverattempttorotatethecuttingcylinders

byhand.

Theremaybesomeresidualpressureinthe

hydraulicsystem,whichcouldcauseinjury

throughsuddenmovementofthecylinder(s)

whenyoureleasetheblockage.

•Alwayswearprotectiveglovesandusea

suitablestrongwoodenstick.

•Ensurethatthewoodensticktsbetween

thebladesandthroughthecylinderandis

longenoughtoprovidesufcientclearance

andleveragetoreleasetheblockage.

1.Stopthemachineonlevelground.

2.Applytheparkingbrakeanddisengageall

drives.

3.Lowerthecuttingunitstothegroundorsecurely

lockinthedesignatedtransportpositions.

4.Shutofftheengineandremovethekeyto

isolateallpowersourcesandcheckthatthey

arestopped.

5.Releaseallstoredenergydevices.

6.Checkthatallmovingpartsarestationary.

7.Usingasuitablestrongwoodenstick,remove

theblockage.Makesurethatthewoodenstick

isproperlysupportedinthecylinderandavoid

theuseofexcessiveforcetopreventdamage.

8.Ensurethatthewoodenstickisremovedfrom

thecuttingcylinderbeforestartingtheengine.

9.Repairoradjustthecylinderifrequired.

Maintenance

CheckingtheCuttingUnit

toBedknifeContact

ServiceInterval:Beforeeachuseordaily

Eachdaybeforeoperatingthemachine,checkthe

cuttingunittobedknifecontact,regardlessifthe

qualityofcuthadpreviouslybeenacceptable.There

mustbelightcontactacrossthefulllengthofthe

cuttingunitandthebedknife.

GreasingtheCuttingUnit

ServiceInterval:Beforeeachuseordaily

GreaseType:No.2lithiumgrease

Lubricatethebearingsandbushingsimmediately

aftereverywashing,regardlessoftheintervallisted.

Replaceanygreaseorgreasettingsthatbecome

damaged.

Greaseallcuttingunitgreasepointsandensurethat

sufcientgreaseisinjectedsuchthatcleangrease

isseentoescapefromtherollerendcaps.This

providesvisibleevidencethattherollersealshave

beenpurgedofgrass,debris,etc.andensures

maximumworkinglife.

Thegreasettinglocationsandquantitiesareas

showninFigure10.

g028858

Figure10

1.–Greaseevery50hours2.–Greasedaily

CheckingtheRear-Roller

BearingAdjustment

ServiceInterval:Every50hours

Important:Keeptherollerbearingsinthecutting

unitsingoodadjustmentinordertoensure

maximumworkinglife.Excessiverollerendoat

willcauseprematurebearingdamage.

1.Griptherollerandmovefromsidetosideand

upanddown.

2.Ifyouseeexcessivemovement,carefullytighten

thenutsateachendoftherollerjustsufciently

toremoveanyendoat(Figure11).

Note:Therollershouldstillrotatefreelyafter

adjustment.Overtighteningthenutscouldlead

toprematurebearingdamage.

Adjustthenutsanequalamountatbothends

oftheroller.

g014441

Figure11

1.Nut

CheckingRearRoller

ScraperWireTension

ServiceInterval:Every50hours

Adjustthetensionofscraperwiresarecorrectlyto

ensurecorrectoperationandmaximumworkinglife.

1.Carefullytightenthescraperwireretainingnuts

toremoveanyslackfromthescraperwires.

2.Tightenthenuts4fullturnstocorrectlytension

thewire(Figure12).

g014440

Figure12

1.Scraperwireretainingnuts

Note:Donotovertightenthescraperwires.

AdjustingtheContact

BetweentheCylinderand

BottomBlade

ServiceInterval:Beforeeachuseordaily

Important:Itisessentialthattherelationship

betweenthebottombladesandthecuttingunits

arekeptingoodadjustmentinordertoensure

goodcuttingperformance,minimumpower

consumption,andprolongedlifeforthecutting

edges.Notmakingtheproperadjustmentsmay

resultinhighermaintenancecostsandalower

qualityofcutthatmayaffectthehealthand

growthofthegrass.

Important:Donotoveradjust.Over-adjusting

maycauseheavycontactbetweenthecylinder

andbottomblade,whichmaycreateveryrapid,

unevenwear,tramlining,wavinessofcutting

edges,increasedcontactpressure,andsignicant

powerabsorption.

1.Checkthatthecuttingcylinderiscorrectlysetto

thebottombladebyholdingathinpieceofpaper

betweenthecuttingcylinderandthebottom

blade(Figure13).

g014443

Figure13

2.Carefullyrotatethecylinderasshownandcheck

thatthepaperiscutcleanlyatallpointsalong

thelengthoftheblade.Holdthepaperata90

degreerightangletothebottombladetoobtain

thecorrectcuttingaction.

WARNING

Thecuttingcylindersaresharp,and

contactwiththemcancauseinjury.Also,

rotating1ofthecuttingcylindersmay

causeotherstorotate,exposingothers

topotentialinjury.

Takecarewhenservicingthecutting

cylindersandensurethatbystandersare

awayfromthemachineandcuttingunits.

3.Stoptheprocedureifanadjustmentisnot

necessary.Otherwise,loosenthenutonboth

endsofthecuttingunit1/4turn(Figure14).

4.Turnthehandwheeloneachendalternately

whilerotatingthecuttingcylinderbackwarduntil

thebottombladeisineetingcontactwiththe

cylinderalongitsentirelength(Figure14).

5.Checkthecuttingactionalongthelengthofthe

bottombladeusingathinpieceofpaperand

makemarginaladjustmentsasnecessary.

6.Tightenthenutsoneachend(Figure14).

g014444

Figure14

1.Handwheel2.Nut

7.Ifyoucannotobtainagoodcleanpapercut

acrosstheentirelengthofthebottomblade,

backlapthecuttingunit(refertoBacklapping

theCuttingUnit(page13).Inseverecases,

grindingthecuttingcylinderandbottomblade

maybenecessary(refertoGrindingtheCutting

Unit(page13).

BacklappingtheCutting

Unit

WARNING

Contactwiththecuttingunitsorothermoving

partscanresultinpersonalinjury.

•Keepyourhandsandclothingawayfrom

thecuttingunitsorothermovingparts.

•Neverattempttoturnthecuttingunitsby

handorfootwhiletheengineisrunning.

Thisprocessisrecommendedforrestoringthesharp

cuttingedgestocylindersandbottombladeswhich

areessentialforgoodqualitygrasscutting.

Thisprocesscanonlyremoveasmallamountof

metaltorestorethecuttingedges.Ifthebladeedges

areseriouslywornordamaged,itwillbenecessaryto

removethecomponentpartsandgrindthem.

1.Turntheengineoffandapplytheparkingbrake.

2.Adjustthecuttingcylinderstothebottomblades

toobtaineetingcontact.

3.Applyamedium-gradedetergent-based

carborundumpastetothecuttingedgesofthe

cylinderswithalonghandledbrush.

80GradeCarborundumPaste

PartNo.

1lb(0.45kg)63-07-088

25lb(11.25kg)63-07-086

g014445

Figure15

4.Ensurethattheareasurroundingthecutting

unitsisclearofpeople.Keepyourhandsand

feetclearofthecuttingcylinderswhilethe

engineisrunning.

5.Sitontheoperatorseat,starttheengine,and

settheenginespeedatidle.

6.Operatethecuttingunitdriveswitchtothe

reverse/backlappositionforaperiodoftime

andlistentothegrindingaction.

g014443

Figure16

7.OperatethecuttingunitdriveswitchtotheOFF

positionandswitchofftheenginewhenthe

grindingactionhasstopped.

8.Thoroughlycleanthebladeedgesandadjustthe

cuttingcylinderstothebottomblades.Check

thatathinpieceofpapercanbecutcleanlyat

allpointsalongthecuttingedgeswhilerotating

thecylindersbyhand.

9.Iffurtherbacklappingisnecessaryrepeatsteps

2through8.

10.Thoroughlyremoveandwashoffalltracesof

thecarborundumpastefromthecylindersand

bottomblades.

GrindingtheCuttingUnit

Grindthecylinderspiraledgesorbottombladeedges

iftheybecomeexcessivelyroundedordistorted.

Replacethebottombladeswhentheyarenearthe

endoftheirwearlife.Grindnewbladesontheir

holderspriortotting.Whengrindingisnecessary,

grindbothcylindersandbottombladesatthesame

time,exceptwhenanewcylinderistted,inwhich

caseitisnecessaryonlytogrindthebottomblade.

Allgrindingoperationsshouldbeperformedby

yourauthorizedT orodistributoronaquality,well

maintainedcylinder/bottombladegrindingmachine.

ReplacingtheBottomBlade

RefertoyourPartsCatalogforalistofrecommended

bladesforyourcuttingunit.

Toensureoptimumperformanceandsafety,always

purchasegenuineTororeplacementpartsand

accessories.Replacementpartsandaccessories

madebyothermanufacturerscouldbedangerous.

Suchusecouldvoidtheproductwarranty.

1.Removethebottombladeholderbyremoving

the3xingboltsateachendandremovethem

fromthecuttingunit(Figure17).

g028860

Figure17

2.Removethewornbottombladeanddiscardthe

countersunkscrewsandsecuringnuts.

3.Fitthenewbladetotheholderandloosely

assemblewithnewcountersunkscrewsand

securingnuts(Figure18andFigure19).

4.Tightenthecenterboltstoatorqueof40N·m

(30lb-ft).

5.Tightentheremainingboltstoatorqueof40

N·m(30lb-ft)byworkingfromthecenterout

towardthebladeends.

6.Grindthenewbottombladeonitsholderprior

tottingtothecuttingunit.Adjustthecutting

cylinderpositiontogiveadequateclearancefor

ttingthenewbottombladeholder.

7.Installthebottombladeholderassemblytothe

cuttingunitusingtheoriginalxingboltsand

torquethemto35N·m(26lb-ft).

8.Adjustthecylindertothebottomblade.

g223071

Figure18

1.Bottomblade2.Countersunkscrew

g223072

Figure19

1.Securingnut

Notes:

DeclarationofIncorporation

TheT oroCompany,8111LyndaleAve.South,Bloomington,MN,USAdeclaresthatthefollowingunit(s)

conform(s)tothedirectiveslisted,wheninstalledinaccordancewiththeaccompanyinginstructionsontocertain

ToromodelsasindicatedontherelevantDeclarationsofConformity.

ModelNo.SerialNo.ProductDescriptionInvoiceDescriptionGeneralDescriptionDirective

02800315000001andUpMK3200mm(8in)4-Blade

CuttingUnit

MK3200MM(8")4-BLADE