Toro 68017C, 68021C, 68024C Operator's Manual

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Page 1

FormNo.3390-592RevA

G020896

MM-658H-P ,MM-858H-P ,and MM-12511H-SMortarMixer

ModelNo.68017C—SerialNo.316000001andUp ModelNo.68021C—SerialNo.316000001andUp ModelNo.68024C—SerialNo.316000001andUp

Registeratwww.T oro.com. OriginalInstructions(EN)

*3390-592*A

Page 2

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,

orotherreproductiveharm.

Useofthisproductmaycauseexposureto chemicalsknowntotheStateofCalifornia

tocausecancer,birthdefects,orother

reproductiveharm.

ThissparkignitionsystemcomplieswithCanadianICES-002.

Becauseinsomeareastherearelocal,state,orfederal regulationsrequiringthatasparkarresterbeusedonthe engineofthismachine,asparkarresterisavailableas anoption.Ifyourequireasparkarrester,contactyour AuthorizedToroServiceDealer.

to:Administrator,NHTSA,1200NewJerseyAvenue, SEWestBuilding,Washington,DC20590.Youcanalso obtainotherinformationaboutmotorvehiclesafetyfrom http://www.safercar.gov.

•TocontactTransportCanada,youmaycall

1-800-333-0510or(819)994-3328;goto http://www.tc.gc.ca/roadsafety/;writeto:Road SafetyandMotorVehicleRegulationDirectorate, TransportCanada,TowerC,PlacedeVille,330 SparksStreet,Ottawa,Ontario,K1A0N5;oremail RoadSafety@tc.gc.ca.

GenuineT orosparkarrestersareapprovedbytheUSDA ForestryService.

Important:ItisaviolationofCaliforniaPublic ResourceCodeSection4442touseoroperatetheengine onanyforest-covered,brush-covered,orgrass-covered landwithoutasparkarrestermufermaintainedin workingorder,ortheengineconstricted,equipped,and maintainedforthepreventionofre.Otherstatesor federalareasmayhavesimilarlaws.

Theenclosedengineowner'smanualissuppliedfor informationregardingtheUSEnvironmentalProtection Agency(EPA)andtheCaliforniaEmissionControl Regulationofemissionsystems,maintenance,and warranty.Replacementsmaybeorderedthroughtheengine manufacturer.

Ifyoubelievethatyourmachinehasadefectwhichcould causeacrashorcouldcauseinjuryordeath,youshould immediatelyinformtheNationalHighwayTrafcSafety Administration(NHTSA)ifyouliveintheUnitedStates, orTransportCanadaifyouliveinCanada,inadditionto notifyingTheToroCompany.

IfNHTSAorTransportCanadareceivessimilarcomplaints, itmayopenaninvestigation,andifitndsthatasafetydefect existsinagroupofmachines,itmayorderarecallandremedy campaign.However,NHTSAorTransportCanadacannot becomeinvolvedinindividualproblemsbetweenyou,your dealer,orTheToroCompany.

•TocontactNHTSA,youmaycalltheV ehicle

SafetyHotlinetoll-freeat1-888-327-4236(TTY: 1-800-424-9153);gotohttp://www.safercar.gov;orwrite

Contactusatwww.Toro.com.

PrintedintheUSA

AllRightsReserved

Page 3

Introduction

G020900

Thismachineisdesignedtomixmortar,plaster,reproong material,grout,andothersmall-grainedPortlandcement products.Avehicleequippedwithanappropriatepintlehitch orballhitchcantowthemachine.

Readthisinformationcarefullytolearnhowtooperateand maintainyourproductproperlyandtoavoidinjuryand productdamage.Youareresponsibleforoperatingthe productproperlyandsafely.

YoumaycontactT orodirectlyatwww .Toro.comforproduct safetyandoperationtrainingmaterials,accessoryinformation, helpndingadealer,ortoregisteryourproduct.

Wheneveryouneedservice,genuineT oroparts,oradditional information,contactanAuthorizedServiceDealerorToro CustomerServiceandhavethemodelandserialnumbersof yourproductready .Writethenumbersinthespaceprovided.

whichsignalsahazardthatmaycauseseriousinjuryordeath ifyoudonotfollowtherecommendedprecautions.

Figure2

1.Safety-alertsymbol

Thismanualuses2wordstohighlightinformation. Importantcallsattentiontospecialmechanicalinformation andNoteemphasizesgeneralinformationworthyofspecial attention.

TireInformation

TheDOTtireinformationislocatedonthesideofeachtire. Thisinformationgivesloadandspeedratings.Replacement tiresshouldhavethesameorbetterratings.

Note:Thevariousmachinesinthismanualhavedifferent weights;refertoSpecications(page13)toensurethatthe tiresonyourmachinemeetorexceedtheweightrequirements ofyourmachine.

Figure1

1.Modelandserialnumber location

ModelNo.

SerialNo.

2.Vehicleidentication number(VIN)location

Thismanualidentiespotentialhazardsandhassafety messagesidentiedbythesafety-alertsymbol(Figure2),

Page 4

Contents

Safety...........................................................................5

SafeOperatingPractices...........................................5

Setup............................................................................8

1InstallingtheDumpHandle...................................8

2InstallingtheTowPole..........................................8

3InstallingtheSafetyChain......................................8

4AdjustingtheMixingPaddles..................................9

ProductOverview.........................................................10

Controls...............................................................11

Specications........................................................13

Attachments/Accessories........................................13

Operation....................................................................14

ThinkSafetyFirst...................................................14

PreparingtoT owtheMachine..................................14

ExtendingtheAxle—Belt-DriveModels...................18

TowingtheMachine...............................................19

PreparingtoUsetheMachine...................................19

OpeningandClosingtheCowl.................................20

AddingFuel...........................................................20

CheckingtheEngine-OilLevel.................................22

StartingandShuttingOfftheEngine.........................23

ControllingthePaddles...........................................24

MixingtheMaterial.................................................25

UsingtheDrum.....................................................26

Maintenance.................................................................27

RecommendedMaintenanceSchedule(s)......................27

PremaintenanceProcedures........................................28

PreparingtheMachineforMaintenance.....................28

DisconnectingtheSpark-PlugWire...........................28

RemovingandInstallingtheDividerPlate..................28

Lubrication...............................................................29

LubricatingtheBearingsandSeals............................29

EngineMaintenance..................................................30

ServicingtheAirCleaner.........................................30

ChangingtheEngineOil.........................................31

ServicingtheSparkPlug..........................................32

ServicingtheSparkArrester.....................................33

RemovingandInstallingtheEngine..........................34

FuelSystemMaintenance...........................................35

ServicingtheFuelSystem........................................35

DriveSystemMaintenance.........................................36

ServicingtheGearCase—Gear-CaseModel...............36

BeltMaintenance......................................................38

ServicingtheBelts—Belt-DriveModels.....................38

ReplacingtheBelts—Belt-DriveModels....................39

AligningthePulleys—Belt-driveModels....................41

ReplacingtheLightBulbs............................................41

ReplacingtheRear-FacingTaillightBulbs...................41

ReplacingtheSide-FacingTaillightBulbs...................41

ReplacingtheFrontAmberBulbs.............................42

MaintainingtheMixingPaddles....................................42

AdjustingthePaddles..............................................42

Cleaning...................................................................44

CleaningtheMachine..............................................44

Storage........................................................................44

StoringtheMachine................................................44

Troubleshooting...........................................................46

Page 5

Safety

Improperlyusingormaintainingthemachinecanresult ininjury.Toreducethepotentialforinjury,complywith thesesafetyinstructionsandalwayspayattentiontothe safety-alertsymbol,whichmeans: or

Danger

complywiththeinstructionmayresultinpersonalinjury ordeath.

—personalsafetyinstruction.Failureto

SafeOperatingPractices

Thismachineiscapableofamputatinghands.Alwaysfollow allsafetyinstructionstoavoidseriousinjuryordeath.

WARNING

Machiningorhandlingstone,masonry,concrete, metal,andothermaterialscangeneratedust,mists, andfumescontainingchemicals,suchassilica, knowntocauseseriousorfatalinjuryorillness, suchasrespiratorydisease,silicosis,cancer,birth defects,orotherreproductiveharm.

•Controldust,mist,andfumesatthesource wherepossible.Usewaterfordustsuppression, whenfeasible.

•Usegoodworkpracticesandfollowthe recommendationsofthemanufacturer orsupplier,CCOHS,OSHA,andother occupationalandtradeassociations.

•Alwaysfollowrespiratoryprecautions.

•Whenthehazardsfrominhalationcannotbe eliminated,theoperatorandanybystanders shouldweararespiratorapprovedbyCCOHSor OSHAforthematerialbeinghandled.

WARNING

Engineexhaustcontainscarbonmonoxide,an odorless,deadlypoisonthatcankillyou.

Donotruntheengineindoorsorinanenclosed area.

Training

•ReadtheOperator'sManualandothertrainingmaterial.If

theoperator(s)ormechanic(s)cannotreadorunderstand theinformation,itistheowner'sresponsibilitytoexplain thismaterialtothem.

•Becomefamiliarwiththesafeoperationoftheequipment,

operatorcontrols,andsafetysigns.

•Alloperatorsandmechanicsshouldbetrained.The

ownerisresponsiblefortrainingtheusers.

Caution

W ar ning

•Neverletchildrenoruntrainedpeopleoperateorservice

theequipment.Localregulationsmayrestricttheageof theoperator.

•Theowner/usercanpreventandisresponsiblefor

accidentsorinjuriesoccurringtopeopleordamageto

property.

Towing

Checkwithyourlocalcountyorstatetowingsafety regulations,inadditiontomeetingTransportCanada(or DepartmentofTransportationifintheU.S.)towingsafety regulations,beforetowingthemachine.

•Inordertoreducethepossibilityofanaccidentwhile

transportingthemachineonpublicroads,makesure thetowingvehicleismechanicallysoundandingood operatingcondition.

•Shutofftheenginebeforetransportingthemachine.

•Whentowingwithaballhitch,ensurethattheballhitch

youareusingisthepropersizeforthehitchcoupleron themachine.

•Whentowingwithapintlehitch,ensurethattheeyeof

thetowpoleisthecorrectdimensionforthepintlehook.

•Inspectthehitchandcouplingforwear.Nevertowthe

machinewithdamagedordefectivehitches,couplings, chains,orothercomponents.

•Checkthetire-airpressureonthetowingvehicleandthe

machine.

•Checkthetiretreadandsidewallfordamageandwear.

•Properlyattachthesafetychainstothetowingvehicle.

•Ensurethatthedirectionalandbrakelightsareworking

properly.

•Ensurethatthedirectional,backup,andbrakelightsof

thetowvehicleareworkingproperly.

•Beforetowingchecktomakecertainyourmachineis

correctlyandsecurelyattachedtothetowingvehicle.

•Ensurethatthesafetychainsareproperlysecuredtothe

vehicle,andleaveenoughslackforturning.

•Donotcarryanymaterialinthemachinewhentowing.

•Avoidsuddenstartsandstops.Thiscancauseskidding,

orjackkning.Smooth,gradualstartsandstopswill improvetowing.

•Avoidsharpturnstopreventrolling.Towonlywitha

vehiclethathasahitchdesignedfortowing.Donot attachtowedequipmentexceptatthehitchpoint.

•Donottowthemachinefasterthan88km/h(55mph).

•Usecautionwhenbackingup;useaspotteroutsidethe

vehicletoguideyou.

•Donotallowanyonetositorrideonthemachine.

•Disconnectthemachinefromthetowvehiclebefore

usingit.

•Ensurethattheyousecurethemachinefromrolling

whilethemachineisparked.

Page 6

Preparation

Becomefamiliarwiththesafeoperationoftheequipment, operatorcontrols,andsafetysigns.

•Useonlyaccessoriesandattachmentsapprovedbythe

manufacturer.

•Wearpersonal-protectiveequipmentandappropriate

clothingincluding:

–Hardhat

–Respiratorordustmask

–Eyeprotection

–Hearingprotection

–Safetyshoes

–Longpants

–Shirtwithlongsleevesbuttonedatthewrists

–Tight-ttinggloveswithoutdrawstringsorloosecuffs

•Tiebacklonghairanddonotwearjewelry.

•Operatingtheequipmentsafelyrequiresthefullattention

oftheoperator.Donotwearradioormusicheadphones whileoperatingthemachine.

•Useextracarewhenhandlingfuels.Theyareammable

andthevaporsareexplosive.Usethefollowingpractices whenhandlingfuel:

–Useonlyanapprovedfuelcontainer.

–Neverremovethefuelcaporaddfuelwiththeengine

running.

–Allowtheenginetocoolbeforerefueling.

–Donotsmoke.

–Neverrefuelordrainthemachineindoors.

–Replacethefuelcapandtightenitsecurely .

–Keepthecontainernozzleincontactwiththetank

duringlling.

–Neverllacontainerwhileitisinsideavehicle,trunk,

pick-upbed,oranysurfaceotherthantheground.

–Neverstorethemachineorfuelcontainerinside

wherethereisanopename,suchasnearawater heaterorfurnace.

–Iffuelisspilled,wipeitofftheengineandequipment.

•Ensurethatthemachineisonalevelsurfacebefore

operatingthemachine.

•Ensurethatyousecurethemachinetopreventunintended

movement.

•Beforeeveryuse:

–Inspectthecoupler,ball,andhitch.

–Ensurethatalllightsarefunctioningproperly(if

equippedwithalightkit).

–Ensurethatthetiresareproperlyinatedas

recommended.

–Ensurethatthelugnutsaretightandtorqued

properly.

–Ensurethatthemachineisproperlysecured.

Operation

•Neverrunanengineinanenclosedorpoorlyventilated

area.

•Onlyoperatethemachineingoodlightingconditions.

•Beforestartingthemachine,makesurethatthereareno

personsorobstaclesnearorunderthemachine.

•Shutofftheenginebeforeleavingthemachineforany

reason.

Neverleavearunningmachineunattended.Always shutofftheengineandverifythatallmovingpartshave stopped.

•Ensurethatthemachineissecurefrommovementor

keepitattachedtothetowingvehiclewhenitisnotin use,topreventitfromrolling.

•Avoidprolongedbreathingofexhaustfumes.

Engine-exhaustfumescancausesicknessordeath.

•Keephandsawayfromanymovingparts.Keepfeetaway

fromthetiresandthefrontpost.

•Donotoperatethemachineundertheinuenceof

alcoholordrugs.

•Ensurethattheareaisclearofotherpeopleorpetsbefore

operatingthemachine.Stopthemachineifanyoneenters thearea.

•Neverplaceyourhandsoranysolidobjectintothedrum

whenthemachineisinoperation.

•Donottouchpartswhichmaybehotfromoperation.

Allowthemtocoolbeforeattemptingtomaintain,adjust, orservicethemachine.

•Nevermovethemachinewhiletheengineisrunning.

•Keepthecowlclosedandlatchedduringoperation.

•Ensurethatalltheguardsandshieldsaresecurelyinplace

beforeoperatingthemachine.

•Disconnectthespark-plugwireandkeepitawayfromthe

sparkplugtopreventaccidentalstartingwhilemaintaining themachine.

•Ifthemixingpaddlesstrikeaforeignobjectorifthe

machineshouldstartmakinganunusualnoiseor vibration,shutofftheengineandemptythedrum.Wait forallmovingpartstocometoacompletestopandcool. Vibrationisgenerallyawarningoftrouble.Disconnect thespark-plugwireandinspectforcloggingordamage. Cleanandrepairand/orreplacedamagedparts.

•Donotchangetheengine-governorsettingoroverspeed

theengine.

•Lightningcancausesevereinjuryordeath.Ifyousee

lightningorhearthunderinthearea,donotoperatethe machine;seekshelter.

MaintenanceandStorage

•Beforeperformingmaintenance,dothefollowing:

–Parkthemachineonlevelground.

Page 7

–Shutofftheengine.Waitforallmovementtostop

beforeadjusting,cleaning,orrepairing.

–Lettheenginecoolbeforeperformingmaintenance

orstoring.

–Removethespark-plugwirebeforemakingany

repairs.

–Disengageallpowerandoperationcontrols.

•Neverlubricate,service,repair,oradjustthemachine

whileitisrunning.

•Keepequipmentmaterialsclearfromthemuferand

enginetohelppreventres.Cleanupanyoilorfuel spillage.

•Neverallowuntrainedpersonneltoservicethemachine.

•Keephands,feet,andclothingawayfrommovingparts.

Ifpossible,donotmakeadjustmentswiththeengine running.

•Keepallpartsingoodworkingconditionandallhardware

tightened.Replaceallwornordamageddecals.

•Removeanybuildupofgrease,oil,ordebrisfromthe

machine.

•Shutofftheengineandinspectthemachineifaforeign

objectentersthedrumorcausesanotherobstruction. Makeanynecessaryrepairsbeforestartingthemachine.

•Donottamperwithsafetydevices.

•Ensurethatthemachineissecurefrommovementbefore

youuseit.

•Keepallnuts,bolts,screws,andhoseclampssecurely

tightened.Keepequipmentingoodcondition.

•UseonlygenuineTororeplacementpartstoensurethat

theoriginalstandardsaremaintained.

Page 8

Setup

G019804

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescription

2 3 4

InstallingtheDumpHandle

Partsneededforthisprocedure:

1Dumphandle

2Bolt

2Nut

Dumphandle1 Bolt2 Nut2

Towpolekit(soldseparately)

Safetychain Connectinglink

Nopartsrequired

1.Removetheboltandnutfromthetowpole(Figure3).

Qty.

Installthedumphandle.

1Installthetowpole.

1 2

–

Installthesafetychain.

Adjustthemixingpaddles.

Use

InstallingtheTowPole

Partsneededforthisprocedure:

Towpolekit(soldseparately)

InstallingtheTowPoletotheMachine

Note:Thetowpoleispurchasedseparatelyandincludesthe

nutandboltneededforinstallation.

Themachinehasthefollowingtowpoleoptions:

HitchTypeLength

50mm(2inch)ball—stamped78.7cm(31inches)or127cm

50mm(2inch)ball—forged78.7cm(31inches)or127cm

Pintle

(50inches)

78.7cm(31inches)or127cm (50inches)

Figure3

1.Towpole4.Bolthole

2.Frontpost

3.Bolt6.Nut

2.Slidethetowpoleforwardandaligntheholeinthe polewiththeholeintheframetting(Figure3).

3.Inserttheboltthroughtheholesinthettingandthe pole(Figure3).

4.Threadthenutontotheboltandtightenthemuntil theyaretightagainsttheframetting(Figure3).

Note:Iftheself-lockingnyloninsertinthelocknut wearswithuse,replacethenutwithanewGrade5or Grade8locknut.

5.Frametting

Page 9

g019883

2 3

InstallingtheSafetyChain

Partsneededforthisprocedure:

Safetychain

Connectinglink

InstallingtheSafetyChaintothe Machine

1.Formahookontheendofabendablepieceofrod orstiffwire(notincluded),andinsertitthroughboth keyholesinthefrontpostofthemachine(Figure4).

AdjustingtheMixingPaddles

NoPartsRequired

Procedure

Ifthemixingpaddlesandwipersneedadjustment,adjustthe paddlesandwipers;refertoAdjustingthePaddles(page42)

Figure4

1.Keyhole

2.Rodorwire(notincluded)4.Connectinglink

2.Attachthesafetychaintothelengthofrodorwire (Figure4).

3.Pulltherod,orwire,andthesafetychainthroughboth keyholes(Figure4).

Note:Ensurethatapproximatelyequallengthsof safetychainextendfromeithersideofthefrontpost.

3.Safetychain

InstallingtheConnectingLinks

1.Aligntheconnectinglinktothelastlinkinoneendof thesafetychain(Figure4).

2.Inserttheconnectinglinkthroughthechainlinkuntil theconnectinglinksnapsclosed(Figure4).

3.Repeatsteps1and2toinstalltheotherconnectinglink intheotherendofthesafetychain.

Page 10

ProductOverview

G020897

G022173

G022174

Figure5

Rightside(Models68017Cand68021C)

1.Rearcowl

2.Frontcowl8.Drumlatch

3.Grate

4.Bagsplitter10.T owpole16.Wheel

5.Dumphandle11.Lightingwire

6.Grateliftarm12.Safety-chain

7.Clutchlever

9.Frontpost15.Axle

harness

keyhole

13.Drum

14.Chute

assembly

17.Light(2)

18.Cowllatch

Leftside(Model68024C)

1.Dumphandle

2.Bagsplitter8.Wheel

3.Grate9.Clutchlever

4.Frontcowl10.Drum

5.Rearcowl11.T owpole

6.Cowllatch

7.Light(2)13.Safety-chain

assembly

12.Lightingwire harness

Figure7

keyhole

14.Frontpost

15.Drumlatch

16.Grateliftarm

1.Dumphandle

2.Drum7.Towpole

3.Drumlatch

4.Frontpost

5.Lightingwire harness

Rightside(Model68024C)

6.Safety-chain

8.Grateliftarm

9.Chute

10.Wheel

Figure6

keyhole

assembly

11.Light(2)

12.Cowllatch

13.Rearcowl

14.Frontcowl

15.Grate

Page 11

Controls

G019875

G019874

G019877

G019878

Becomefamiliarwithallthecontrolsbeforeyoustartthe engineandoperatethemachine.

ClutchLever

Theclutchleverengagesanddisengagesenginepowertothe paddles.

•Belt-drivemodels(models68017Cand68021C)

DrumLatch

Thedrumlatchsecuresthedrumtothemixposition(upright) formixingoperationsandwhentransportingthemachine.

Figure10

1.Drumlatch

DumpHandle

1.Clutchlever

•Gear-casemodel(model68024C)

Belt-drivemodels

Gear-casemodel

Figure8

Figure9

Usethedumphandletorotatethedrumtothedumpposition andtorotatethedrumtothemixposition(upright).

Figure11

1.Dumphandle

1.Clutchlever

Page 12

EngineControls

G019744

G018792

OFF

G021 103

Figure12

1.Recoil-starthandle5.Fuelcap

2.Fuelvalve

3.Chokelever7.Oil-drainplug

4.Throttlelever

6.Oilcap/dipstick

8.On/Offswitch

ChokeLever

Usethechokelever(Figure13)tostartacoldengine.Before pullingtherecoil-starthandle,movethechokelevertothe closedposition.Oncetheengineisrunning,movethechoke levertotheopenposition.Donotusethechokeiftheengine isalreadywarmeduportheairtemperatureishigh.

ThrottleLever

Thethrottlelever(Figure13)controlsthespeed(rpm)ofthe engine.Itislocatednexttothechokelever.Itsetstheengine speedandthereforecanincreaseanddecreasetherotation speedofthemixingpaddles.Forbestperformance,setthis controltothefastpositionwhenmixingmaterial.

EngineOn/OffSwitch

TheON/OFFswitch(Figure14)allowstheoperatorofthe machinetostartandshutofftheengine.Thisswitchis locatedonthefrontoftheengine.RotatetheON/OFFswitch totheONpositiontostartandruntheengine.Rotatethe ON/OFFswitchtotheOFFpositiontoshutofftheengine.

FuelValve

Thefuelvalve(Figure13)islocatedunderneaththechoke lever.MovetheleverforthefuelvalvetotheONposition beforeattemptingtostarttheengine.Whenyouhavenished mixing,shutofftheengineandmovethefuel-valveleverto

Figure14

theOFFposition.

1.OFFposition2.ONposition

Recoil-StartHandle

Tostarttheengine,pulltherecoil-starthandle(Figure12) quicklytoturntheengineover.Theenginecontrolsdescribed abovemustallbesetcorrectlyfortheenginetostart.

Oil-LevelSwitch

Theoil-levelswitchislocatedinsidetheengine,anditdoes notallowtheenginetorunintheeventtheoillevelisbelow thesafeoperatinglimit.

Figure13

1.Fuelvalve3.Throttlelever

2.Chokelever

Page 13

Specications

Note:Specicationsanddesignaresubjecttochangewithoutnotice.

MachineSpecications

Model

BatchCapacity0.17cubicm(6.0cubicft)0.23cubicm(8.0cubicft)0.34cubicm(12.0cubicft)

TotalVolume

DrumMaterialPolyethylenePolyethylene

Length

(withouttowpole)

Width86cm

Height137cm

Weight241kg

Axle

Engine

Drivebeltbeltgearbox

68017C68021C68024C

0.20cubicm(6.9cubicft)0.25cubicm(9.0cubicft)0.42cubicm(14.8cubicft)

Steel

163cm (64inches)

(34inches)

(54inches)

(530lb)

86to117cm(34to46inches) extendable

Honda

GX240Honda

193cm (86inches)

86cm (34inches)

137cm 0(54inches)

266kg (585lb)

86to117cm(34to46inches) extendable

GX240Honda

205.7cm (81inches)

142.2cm (50inches)

150cm (59inches)

508kg (1120lb)

142cm(56inches) xed

GX340

Attachments/Accessories

AselectionofT oroapprovedattachmentsandaccessoriesisavailableforusewiththemachinetoenhanceandexpandits capabilities.ContactyourAuthorizedServiceDealerorDistributor.

TobestprotectyourinvestmentandmaintainoptimalperformanceofyourToroequipment,countonTorogenuineparts. Whenitcomestoreliability,Torodeliversreplacementpartsdesignedtotheexactengineeringspecicationofourequipment. Forpeaceofmind,insistonT orogenuineparts.

Page 14

Operation

G009027

G019741

ThinkSafetyFirst

Carefullyreadallsafetyinstructionsandsymbolsinthe safetysection.Knowingthisinformationcouldhelpyouor bystandersavoidinjury.

CAUTION

Thismachineproducessoundlevelsthatcancause hearinglossthroughextendedperiodsofexposure.

Wearhearingprotectionwhenoperatingthis machine.

Theuseofprotectiveequipmentforeyes,ears,hands,feet, andheadisrecommended.

Figure15

1.Wearsafetyglasses.

2.Wearhearingprotection.

PreparingtoTowtheMachine

Important:Ensurethatyourtowvehiclehastowing

capacityfortheweightofthemachine.

Important:UseaClass2orlargerreceiver.

Note:Ensurethatyourtowvehiclehastheappropriatehitch

totowthemachine;optionsincludea50mm(2inch)ball hitchorapintlehitch.

Figure16

5.Extendtheaxle(Modelsand68021C);referto

ExtendingtheAxle—Belt-DriveModels(page18).

Note:Ensurethattheelectricalconnectorofthetowvehicle iscompatiblewiththeelectricalconnectorofthemachine. Themachineusesastandard4-atplug.Ifyourtowvehicle hasadifferenttypeofplug,obtainanadapterfroman automotivepartsstore.

1.Ensuretheengineisshutoff,thefuelvalveisoff,and thedrumisempty.

2.Ifthedrumhasaccumulatedanywater,dumpthe drum;refertoDumpingtheDrum(page26),steps1,

3,4,and5.

3.Usingthedumplever,positionthedrumsothatitisin themixposition(upright)andlocked.

4.Closetheenginecowlandsecurethecowllatches (Figure16).

Page 15

CheckingtheTiresandWheels

G020836

G021 107

ServiceInterval:Beforeeachuseordaily—Inspectthetires

andwheels.

Aftereachuse—Torquethelugnutsto108to122 N∙m(80to90ft-lb)aftertowing.

WARNING

Failuretomaintaincorrecttirepressuremayresult intirefailureandlossofcontrol,resultingin propertydamageandseriousinjuryordeath.

•Checkthetirepressurefrequentlytoensure properination.Ifthetiresarenotinatedto thecorrectpressure,theywillwearprematurely.

•Inspectthetireconditionbeforetowingand afteranyoperatingaccident.

TheDOTtireinformationislocatedontheside ofeachtire.Thisinformationgivesloadandspeed ratings.Replacementtiresshouldhavethesame orbetterratings.Formoreinformationgoto http://www.nhtsa.gov/Vehicle+Safety/Tires.

2.Ensurethatthetiresareinatedtothecorrectair pressure.ThefollowingTire-AirPressuretableshows theappropriateairpressureforthetiresasinstalledat thefactory.

Important:Alwayschecktheinformation ontheactualtiresforthecorrectairpressure requirement.

Important:Themostcommoncauseoftire troubleisunderination.Maintainfullair pressure.

TireAirPressure

ModelTirepressure

68017CMax414kPa(60psi)

68021Cand68024CMax241kPa(35psi)

3.Ensurethatthelugnutsaretorquedto108to122 N∙m(80to90ft-lb).Checkthetorqueofthelugnuts initiallyandaftertowing.

Note:Torquethelugnutsinthesequenceshownin

Figure19.

Note:Thevariousmachinesinthismanualhavedifferent weights;refertoSpecications(page13)toensurethatthe tiresonyourmachinemeetorexceedtheweightrequirements ofyourmachine.

1.Visuallyinspectthetiresfordamageandwear(Figure

17andFigure18)

Figure17

1.Exampleoftirewearcausedbyunderination

Figure19

1.Exampleoftirewearcausedbyoverination

Figure18

Page 16

HitchingaMachinewithaStampedBall

G020359

G019807

Coupler(optionalkit)

HitchingaMachinewithaForgedBall Coupler(optionalkit)

1.Applychassisgreasetothesocketofthecouplerand theareaoftheclampthatcontactstheball.

2.Oilthepivotpointsandslidingsurfacesofthecoupler withSAE30motoroil.

3.Openthecouplerlatch(Figure20).

1.Applyremovablethread-lockingcompoundtothe threadsofthecouplerbolttopreventthecoupler handlefromcomingloose(Figure21).

Important:Applythread-lockingcompoundas neededinthefuture.

Figure20

1.Bail

4.Positionthecouplerontopofthehitchball(Figure20).

5.Closethecouplerlatch(Figure20).

6.Openthebailonthesafetypin,andinsertthepin

7.Rotatethefreeendofthebailovertheendofthesafety

8.Connectthewireplugofthetowvehicletothewire

2.Safetypin

throughtheholeinthelatch(Figure20).

pinthatisprotrudingthroughthelatch(Figure20).

plugofthemachine.

Figure21

1.Couplerhandle

2.Coupler

3.Clamp

4.Bolt

5.Hitchball

2.Applychassisgreasetothesocketofthecouplerand theareaoftheclampthatcontactstheball.

3.Pushthecouplerboltupthroughthecouplerclamp andthecouplertop,andconnectthecouplerhandleto thebolt(Figure21).

4.Positionthecouplersothatthesocketisontopofthe hitchballandtheclampisundertheball.

5.Turnthecouplerhandleclockwisetothreaditontothe boltuntilitissecure(Figure21).

Note:Useawrenchtokeeptheboltfromspinning.

6.Connectthewireplugofthetowvehicletothewire plugofthemachine.

Page 17

HitchingaMachinewithaPintleHitch

G019809

G020084

Coupler(optionalkit)

1.Removethepinfromthepintlehitchandopenit (Figure22).

Figure22

2.Positiontheringonthetowpoleontothehookofthe pintlehitch(Figure22).

3.Closethetopofthepintlehitchandsecureitwiththe pin(Figure22).

4.Connectthewireplugofthetowvehicletothewire plugofthemachine.

HitchingaMachinewithaPinHitch Coupler(optionalkit)

1.Positionthefrontofthepin-hitchcouplersothatit islocatedbetweenthetopandbottomplatesofthe pin/clevishitchofthetowvehicle,andensurethatthe holesarealigned(Figure23).

Figure23

1.Hitchpin3.Pin-hitchcoupler

2.Hairpincotter

2.Inserta19mm(3/4inch)or22mm(7/8inch)hitch pinthroughtheholesinthecouplerandthereceiver hitch(Figure23).

3.Insertahairpincotterthroughtheholeinthebottom ofthehitchpin(Figure23).

4.Connectthewireplugofthetowvehicletothewire plugofthemachine.

4.Pin/clevis-hitchreceiver

ConnectingtheSafetyChainstothe TowVehicle

Connectthesafetychaintothemachineandthetowvehicle asfollows:

1.Pullthesafetychainthroughtheslotsinthekeyholes locatedinthefrontpostofthemachine,sothatthe lengthsoneachsideareequal(Figure24).

2.Crossbothlengthsofchainunderthetowpole.

Note:Crossingthechainsdecreasesthechancesof thefrontofthemachinedroppingtothegroundifthe hitchdoesnotholdtheconnection.

Page 18

G021 177

Figure24

G021 178

G020828

1.Connectinglinks3.Chaincrossedundertow pole

2.Keyholesinfrontpost

3.Connecteachlengthofchaintothesafety chain-mountingpointonthetowvehiclewiththe connectinglinks(Figure25).

Important:Ensurethatthechainhasenough slackforturningaroundcornerswhentowingthe machine.

Figure26

Note:Themachineusesastandard4-atplug.Ifyourtow

vehiclehasadifferenttypeofplug,obtainanadapterfroman automotive-partsstore.

Important:Routinelycheckthelightstoensurethat theyareworkingproperly,includingthetaillights,brake lights,andeachappropriateturnsignal.

CheckingtheLights

•Ensurethatthetaillightsofthemachineilluminatewhen

youturnontheheadlightsoftowvehicle.

•Ensurethatthebrakelightsofthemachineilluminate

whenyoupressthebrakepedalofthetowvehicle.

•Ensurethattheappropriateturnsignalasheswhenyou

operatethecorrespondingturnsignalofthetowvehicle.

ExtendingtheAxle—Belt-Drive

Note:Stowtheexcesschaininsidethebottomofthe

frontpostbypushingitintothekeyholesandlatching theappropriatelinksintothekeyholeslots.

Models

Models68017Cand68021C

WARNING

Themachineisnotstablewhentowingitwiththe axleinthenarrowposition.

Towthemachinewiththeaxleinthewideposition.

Important:Adjusttheaxletothenarrowpositiononly tomovethemachinethroughanarrowaccesspoint, suchasthegateofafenceorthedoorwayofabuilding.

PreparingtoChangetheAxleWidth

1.Movethemachinetoaleveljob-sitesurface.

2.Disconnectthemachinefromthetowvehicle.

Figure25

1.Connectinglink3.Chainlink

2.Safetychainmounting pointontowvehicle

3.Ensurethatthemachineissecurefrommovement beforeyouuseit.

4.Ensurethatthedrumisemptyandinthemixposition (upright).

ConnectingtheLightingWireHarness

Connecttheelectricalplugofthemachinewiththeelectrical plugofthetowvehicle,asshowninFigure26.

5.Ensurethatthedrumlatchisengagedandthatthe drumdoesnotrotatetowardthedumpposition.

Page 19

AdjustingtheAxleWidth

G020019

1 2

G020020

WARNING

Mechanicalorhydraulicjacksmayfailtosupport themachineandcauseseriousinjury .

Usejackstandswhensupportingthemachine.

1.Alignajackwithanadequateliftheightandweight capacityundertheaxle;refertoSpecications(page

13).

•Slideeachsideoftheaxleinwardtothenarrow

position(Figure28).

•Slideeachsideoftheaxleoutwardtothewide

(tow)position(Figure28).

6.Aligntheholesoftheinneraxlewiththeholesofthe outeraxle.

7.Inserttheboltsthroughtheaxleholes(Figure28).

8.Threadthenutsontothebolts,andtorquethenuts to87N∙m(64ft-lb).

2.Liftthemachineuntilthetiresareofftheground.

3.Useajackstandateachsupportpointontherear frameextension(Figure27).

Figure27

1.Supportpoint(2)

4.Removetheboltsandnutsthatsecuretheinneraxleto theouteraxle(Figure28).

TowingtheMachine

WARNING

Towingthemachineathighspeedincreasesthe riskofahitchmalfunctionandtirefailure.Higher speedsalsoincreasethemomentumofthemachine andbrakingdistance.Ifthemachinebecomes detachedfromthetowvehicleathighspeed,it couldcausedamagetoproperty,orinjuryordeath tobystanders.

Donotexceed88km/h(55mph)whentowingthe machine.Forpoorroadconditionsorinclement weather,reducespeedaccordingly.

WARNING

Towingthemachinewithmaterialinthedrum increasestheriskofahitchmalfunctionandtire failure.Inaddition,materialcouldbounceoutof thedrumandhitothervehiclesand/orpeople. Materialinthedrumincreasestheweight,which affectsmomentumandbrakingdistance.

1.Wideposition(towing)4.Nut(narrowposition)

2.Narrowposition

3.Nut(wideposition)6.Bolt(narrowposition)

5.Aligntheinneraxletothedesiredpositionasfollows:

Figure28

5.Bolt(wideposition)

Donottowthemachinewithmaterialinthedrum.

•ReviewandunderstandSafeOperatingPractices(page5).

•Testthebrakesofthetowvehiclebeforetowing.

•Avoidsuddenstartsandstopswhiletowingthemachine.

PreparingtoUsetheMachine

•Reviewallofthesafetydecalsonthemachine.

•Useahard-hat,hearingprotection,ashirtwithlong

sleevesbuttonedatthewrists,tight-ttinggloveswithout drawstringsorloosecuffs,eyeprotection,andadust maskorrespirator.Ameshvisoralonedoesnotprovide sufcienteyeprotection;supplementwithprotective glasses.

•Ensurethatyouarefamiliarwiththesafetyregulations

andshutdownproceduresdescribedintheOperator’s ManualandtheEngineOwner’sManual.

•Ensurethatallguardsareinplaceandingoodcondition.

Page 20

•Ensurethatthepaddlesareinplaceandingood

G019879

condition.

•Checkthefuelandoillevelsoftheengine.

•Whenpreparingtomixmaterial:

1.Movethemachinetoaleveljob-sitesurface.

2.Removethemachinefromthetowvehicle.

3.Ensurethatthemachineissecurefrommovement beforeyouuseit.

4.Ensurethatthedrumisinthemixposition (upright).

5.Ensurethatthedrumlatchisengagedandthatthe drumdoesnotrotatetowardthedumpposition.

OpeningandClosingtheCowl

4.Rotatetherearcowlupandforwarduntilitisfully positionedontopofthefrontcowl(Figure29).

ClosingtheCowl

1.Rotatetherearcowlrearwardanddownuntilthe receiveratthebottomcenterofthecowlisalignedwith theV -ttingandushontheframeofthemachine (Figure29).

2.Atthebackofthemachine,grasptheringofthelatch andpullitontothelatchanchorontherearcowl.

3.Atthesideofthemachine,grasptheringofthelatch andpullitontothelatchanchorontherearcowl.

4.Repeatstep3ontheoppositesideofthemachine (Figure29).

OpeningtheCowl

1.Atthesideofthemachinewherethefrontcowland rearcowlmeet,grasptheringofthelatchandpullit offfromthelatchanchorontherearcowl(Figure29).

AddingFuel

•Forbestresults,useonlyclean,fresh(lessthan30days

old),unleadedgasolinewithanoctaneratingof87or higher((R+M)/2ratingmethod).

•Ethanol:Gasolinewithupto10%ethanol(gasohol)

or15%MTBE(methyltertiarybutylether)byvolume isacceptable.EthanolandMTBEarenotthesame. Gasolinewith15%ethanol(E15)byvolumeisnot approvedforuse.Neverusegasolinethatcontains morethan10%ethanolbyvolume,suchasE15 (contains15%ethanol),E20(contains20%ethanol),or E85(containsupto85%ethanol).Usingunapproved fuelmaycauseperformanceproblemsand/orengine damagewhichmaynotbecoveredunderwarranty.

•Donotusefuelcontainingmethanol.

•Donotstorefueleitherinthefueltankorfuelcontainers

overthewinterunlessafuelstabilizerisused.

•Donotaddoiltofuel.

Figure29

1.Latch3.Receiver

2.Latchanchor

2.Repeatstep1ontheoppositesideofthemachine.

3.Atthebackofthemachinewheretherearcowlmeets theframeofthemachine,grasptheringofthelatch andpullitofffromthelatchanchoronthecowl (Figure29).

4.V-tting

Page 21

DANGER

WARNING

Incertainconditions,fuelisextremelyammable andhighlyexplosive.Areorexplosionfromfuel canburnyouandothersandcandamageproperty.

•Fillthefueltankoutdoors,inanopenarea,when theengineiscold.Wipeupanyfuelthatspills.

•Neverllthefueltankinsideanenclosedtrailer.

•Donotllthefueltankcompletelyfull.Add fueltothefueltankuntilthelevelis6to13mm (1/4to1/2inch)belowthebottomoftheller neck.Thisemptyspaceinthetankallowsthe fueltoexpand.

•Neversmokewhenhandlingfuel,andstayaway fromanopenameorwherefuelfumesmaybe ignitedbyaspark.

•Storethefuelinanapprovedcontainerandkeep itoutofthereachofchildren.Neverbuymore thana30-daysupplyoffuel.

•Donotoperatewithoutentireexhaustsystemin placeandinproperworkingcondition.

Fuelisharmfulorfatalifswallowed.Long-term exposuretovaporscancauseseriousinjuryand illness.

•Avoidprolongedbreathingofvapors.

•Keepfaceawayfromnozzleandfueltankor conditionerbottleopening.

•Avoidcontactwithskin;washoffspillagewith soapandwater.

UsingStabilizer/Conditioner

Useafuelstabilizer/conditionerinthemachinetoprovide thefollowingbenets:

•Keepsfuelfreshduringstorageof90daysorless.For

longerstorageitisrecommendedthatthefueltankbe drained.

•Cleanstheenginewhileitruns

•Eliminatesgum-likevarnishbuildupinthefuelsystem,

whichcauseshardstarting

Important:Donotusefueladditivescontaining methanolorethanol.

DANGER

Incertainconditionsduringfueling,static electricitycanbereleasedcausingasparkwhich canignitethefuelvapors.Areorexplosionfrom fuelcanburnyouandothersandcandamage property.

•Alwaysplacefuelcontainersonthegroundaway fromyourvehiclebeforelling.

•Donotllfuelcontainersinsideavehicleoron atruckortrailerbedbecauseinteriorcarpets orplastictruck-bedlinersmayinsulatethe containerandslowthelossofanystaticcharge.

•Whenpractical,removegas-poweredequipment fromthetruckortrailerandrefueltheequipment withitswheelsontheground.

•Ifthisisnotpossible,thenrefuelsuchequipment onatruckortrailerfromaportablecontainer, ratherthanfromafuel-dispensernozzle.

•Ifyoumustuseafuel-dispensernozzle,keepthe nozzleincontactwiththerimofthefueltank orcontaineropeningatalltimesuntilfuelingis complete.

Addthecorrectamountofgasstabilizer/conditionerto thegas.

Note:Afuelstabilizer/conditionerismosteffective whenmixedwithfreshfuel.T ominimizethechanceof varnishdepositsinthefuelsystem,usefuelstabilizerat alltimes.

Page 22

FillingtheFuelTank

G019799

G020679

Model(s)

68017Cand68021C5.3L(1.40USgallons)

68024C6.1L(1.61USgallons)

Fueltankcapacity

1.Parkthemachineonalevelsurface,shutofftheengine, andallowtheenginetocool.

2.Cleanaroundthefuelcapandremoveit(Figure30).

Figure30

1.Fuelcap

3.Addunleadedgasolinetothefueltank,untilthelevel isatthebottomofthemaximumfuellevel,asshown inFigure31.

Important:Thisspaceinthetankallowsfuelto expand.Donotllthefueltankcompletelyfull.

Figure31

1.Maximumfuellevel

4.Installthefuelcapsecurely(Figure30).

5.Wipeupanyfuelthatmayhavespilled.

CheckingtheEngine-OilLevel

ServiceInterval:Beforeeachuseordaily

Important:Use4-cycleengineoilthatmeetsorexceeds therequirementsforAPIservicecategory

or higher

Model(s)Crankcasecapacity

68017C,68021C,and68024C1.1L(1.2USqt)

Important:Iftheoillevelinthecrankcaseistoolow ortoohighandyouruntheengine,youmaydamage theengine.Thistypeofdamageisnotcoveredbythe warranty.

Note:UseSAE10W-30forgeneraluse.Youcanuse theotherviscositiesshowninthechartwhentheaverage temperatureinyourareaiswithintheindicatedrange(Figure

32).

SJ , SL, SM,

Page 23

g013375

0 20 40 60 80 100 F

-20 -10 0 10 20 30 40 C

5W - 30 / 10W - 30

Figure32

G019815

1.Placethemachineonaat,levelsurface,andshutoff theengine.

2.Allowtheenginetocool.

3.Cleanaroundtheoildipstick.

4.Removetheoil-llcap/dipstickandwipetheendclean (Figure33).

Figure34

Figure33

1.Fillport

2.Dipstick

3.Oil-levelupperlimit

4.Oil-levellowerlimit

5.Slidethedipstickfullyintothellportwithout threadingitintotheport(Figure33).

6.Removethedipstickandlookattheend.Ifthe engine-oillevelislow ,slowlypouronlyenoughoilinto thellporttoraisetheleveltotheFullmarkonthe dipstick(Figure33).

Note:ToroPremiumEngineOilisavailablefrom yourAuthorizedToroDealer.

1.Chokelever

2.Fuelvalve

3.Throttlelever

2.MovetheleverofthefuelvalvetotheONposition—all thewaytotheright(Figure34);refertoFuelValve

(page12).

3.Positionthechokeleverasfollows:

•Tostartacoldengine,movethechokelevertothe

CLOSEDposition—allthewaytotheleft(Figure

34);refertoChokeLever(page12).

•Tostartawarmengine,movethechokeleverin

theOPENposition—allthewaytotheright.

4.RotatetheengineswitchtotheONposition(Figure

34);refertoEngineOn/OffSwitch(page12).

5.Pulltherecoil-starthandlelightlyuntilyoufeel resistance,thenpullthehandlebriskly.Returnthe recoil-starthandlegently(Figure35).

7.Replaceandsecurethedipstick(Figure33).

StartingandShuttingOffthe Engine

StartingtheEngine

1.Ontheengine,movethethrottleleverawayfromthe MINposition,1/3ofthewaytowardtheMAXposition (Figure34);refertoThrottleLever(page12).

Page 24

G019747

Figure35

G019873

Note:IfthechokeleverissettotheCLOSEDpositionto starttheengine,graduallymovethechokeleverbacktoward theOPENpositionastheenginewarmsup.Iftheengine stallsorhesitates,movethechokeleverbacktowardthe CLOSEDpositionuntiltheenginerunssmooth.Allowthe enginetowarmup,thenmovethechokelevertotheOPEN position;refertoChokeLever(page12).

Usetheclutchlevertocontrolthepowertransmissiontothe paddlesofthemachine.

ControllingthePaddles—Belt-drive Models

Models68017Cand68021Conly

ShuttingOfftheEngine

WARNING

Inanemergencysituation,shutofftheengine immediately.

Important:Duringnormaloperation,iftheengine hasbeenworkinghardorishot,letitidleforaminute beforeshuttingofftheengine.Thishelpstocoolthe enginebeforeshuttingoff.

1.EnsurethatthechokeleverisintheOFFposition (Figure34);refertoChokeLever(page12).

2.MovethethrottlelevertotheMINposition(Figure

34);refertoThrottleLever(page12).

3.RotatetheengineswitchtotheOFFposition;referto

EngineOn/OffSwitch(page12).

ControllingthePaddles

DANGER

Thismachineiscapableofamputatinghands.

•Stayintheoperator’spositionwhilethemachine isrunning.

•Keepallbystandersasafedistancefromthe machine.

•Stopthemachineimmediatelyifanypeopleor animalsentertheworkarea.

•Neverplaceanypartofyourbodyintoaposition thatcausesanunsafeoperatingcondition.

Figure36

1.Offposition2.Onposition

Page 25

ControllingthePaddles—Gear-case

G019872

G019973

Model

Model68024Conly

Figure37

1.Onposition2.Offposition

MixingtheMaterial

DANGER

Eyeandskincontactwithconcretematerialsand breathingthedustinvolvedishazardoustoyour health.

MixingaBatchofMaterialinthe Machine

1.Ensurethatthereisnoold,loosematerialinthedrum thatcancontaminatethebatchofmaterial;referto

CleaningtheDrum(page26)andDumpingtheDrum (page26),thenreturnthedrumtotheuprightposition.

Note:Ensurethatthedrumisinthemixposition (upright)andthedrumlatchisengaged.

2.MovetheclutchlevertotheOFFposition;referto

ControllingthePaddles(page24).

3.Starttheengine;refertoStartingtheEngine(page23).

Note:Allowtheenginetowarm-upat2/3throttle for1to2minutes.

4.SetthethrottleleverontheenginetotheMAXposition; refertoThrottleLever(page12).

5.MovetheclutchlevertotheONposition;referto

ControllingthePaddles(page24).

6.Addtheingredientsforthebatchasfollows:

A.Pourwaterintothedrumthroughthegratingof

thedrumguard.

B.Addtheplaster,cement,orotherbindingmaterial.

Note:Youcanopenbagsofcement,plaster,and bindingmaterialsbyloweringthebagontothe bagsplitter(Figure38).

•Ensurethatthereisadequateairventilation.

•Wearadustmasktopreventinhalationofdust whileusingthemachine;refertoSafeOperating

Practices(page5).

•Avoiddirectcontactofcementandconcrete materialswithskinandeyes.

DANGER

Contactwiththemixingpaddlescouldcause damageorinjury.

Neverputyourhandsortoolsinsidethedrumwhile theengineisrunning.

Important:Donotaddmorematerialthanthebatch capacityofthemachine;refertoSpecications(page13).

Note:Followthemanufacturer’sinstructionsthatareprinted onthepackagingoftheproductyouareusing.

Figure38

C.Ifyouareusingsandand/orotherreinforcing

materials,addthemintothedrum.

7.Allowthepaddlestomixthematerialuntilthe ingredientshaveauniformappearance.

Note:Ifneeded,addwaterorplaster,cement,or otherbindingmaterialuntiltheconsistencyofthe batchiscorrect.

Page 26

8.Releasethedrumlatchanddumpthedrum;referto

G019972

DumpingtheDrum(page26).

UsingtheDrum

DANGER

Note:Allowthemachinetocompletelydischargethe

contentsofthedrum.

5.Rotatethedumphandleclockwiseuntilthedrum latchlocksthedrumintheuprightposition(Figure39).

6.Afterdischargingabatchofmaterial,cleanthedrum; refertoCleaningtheDrum(page26).

Contactwiththemixingpaddlescouldcause damageorinjury.

Neverputyourhandsinsidethedrumwhilethe engineisrunning.

DumpingtheDrum

Note:Whendumpingabatchofmaterial,leavetheengine

runningandtheclutchintheONpositionsothattherotating paddleshelpdischargethematerial.

1.Alignawheelbarroworsimilarcontainerofadequate capacityinthepathofthedrumopening.

2.Graspthedumphandlewithyourlefthand(Figure39).

Note:Thisstepcleansthepaddlesanddrumbetween batchesandpreventdriedmaterialfromforming,and contaminatingthenextbatchofmaterial.

CleaningtheDrum

Important:Donotstrikeonthedrumwithashovel,

hammer,oranyotherdevicetoloosenanyaccumulated driedmaterials.

1.Stoptherotationofthepaddlesbymovingtheclutch levertotheOFFposition;refertoControllingthe

Paddles(page24).

2.RotatetheengineON/OFFswitchtotheOFFposition; refertoShuttingOfftheEngine(page24).

3.Ensurethatthedrumisinthemixposition(upright); refertoDumpingtheDrum(page26),step5.

4.Spraythemachinewithwatertoremoveany accumulatedmaterial.

5.Starttheengine;refertoStartingtheEngine(page23).

6.Starttherotationofthepaddlesbymovingtheclutch levertotheOnposition;refertoControllingthe

Paddles(page24).

Figure39

1.Dumphandle(mix position)

2.Drumlatch(release position)

3.Drumlatch(locked position)

4.Dumphandle(dump position)

Note:Whendumpingabatchofmaterial,aligna wheelbarroworasimilarcontainerofadequatecapacity beneaththechute.

3.Liftthehandleofthedrumlatch(Figure39).

4.Withbothhandsonthedumphandle,rotateit counterclockwisetodischargethecontentsofthe drum(Figure39).

7.Dumpthedrum;refertoDumpingtheDrum(page

26).

Page 27

Maintenance

Important:Beforeperforminganymaintenanceprocedures,rstshutofftheengine,wait5minutestoallowall

movingpartstocometoacompletestopandcool,anddisconnectthespark-plugwire.

RecommendedMaintenanceSchedule(s)

MaintenanceService

Interval

Aftertherst25hours

Beforeeachuseordaily

Aftereachuse

Every40hours

Every50hours

Every100hours

Every300hours

MaintenanceProcedure

•Changetheengineoil.

•Checkthegear-caseclutch(Model68024Conly).

•Inspectthebeltsandadjustasnecessary.

•Inspectthetiresandwheels.

•Checktheengine-oillevel.

•Inspecttheair-cleanerelements.

•Checktheclutchoperation(Model68024Conly).

•T orquethelugnutsto108to122N∙m(80to90ft-lb)aftertowing.

•Cleanthedrumbetweenmixingbatchesofmaterial.

•Lubricatethetrunnions.

•Cleanthemachine.

•Checkthegear-caseoil(Model68024Conly).

•Inspectthebeltsandadjustasnecessary.

•Checktheclutchoperation(Models68014C,68017C,and68021Conly).

•Cleantheair-cleanerelements.Cleanthemmorefrequentlyindustyoperating conditions.

•Changetheengineoil.

•Checkthesparkplug.

•Cleanthesparkarrester.

•Cleanthesedimentcup.

•Replacethepaperair-cleanerelement.Replaceitmorefrequentlyindusty operatingconditions.

•Replacethesparkplug.

Every800hours

Monthly

Yearlyorbeforestorage

Every2years

•Replacethegear-caseoil(Model68024Conly).

•Lubricatethepillow-blockbearings.

•Cleanthefuel-sedimentcup.

•Replacethebelts.

Important:Refertoyourengineoperator'smanualforadditionalmaintenanceprocedures.

Page 28

Premaintenance

G019281

G020752

G020753

Procedures

PreparingtheMachinefor Maintenance

1.Parkthemachineonalevelsurface.

2.Removethemachinefromthetowvehicle.

3.Ensurethatthemachineissecurefrommovement beforeyouuseit.

4.Opentherearcowl;refertoOpeningtheCowl(page

20).

5.Ensurethattheengineandmuferarecool.

6.Disabletheengine;refertoDisconnectingthe

Spark-PlugWire(page28).

DisconnectingtheSpark-Plug Wire

Pullthespark-plugwireofftheterminalofthesparkplug (Figure40).

RemovingtheDividerPlate

1.Unlatchandopenthecowl;refertoOpeningtheCowl

(page20).

2.Useawrenchtoremovethe4boltsthatsecurethe dividerplatetothefrontcowl.

Note:Keeptheboltsforinstallingthedividerplate.

Figure41

3.Toremovethedividerplate,liftitupwardandrotate itcounterclockwisesothatitclearsvariousengine components.

Figure40

1.Sparkplug

RemovingandInstallingthe DividerPlate

Youneedtoremovethedividerplatetoprovideaccessbefore performingsomemaintenanceprocedures.

Note:Model68024Cdoesnothaveadividerplate.

InstallingtheDividerPlate

1.Guidethedividerplateintopositionagainstthefront cowl.

Note:Startwiththedividerplaterotatedslightly counterclockwise,andthenrotateitclockwisewhile loweringitintoposition.

Ensurethatthedividerplateisnotbackward.

Figure42

2.Aligntheboltholesinthedividerplateandthefront cowl.

3.Installeachofthe4bolts,andhand-tightenthemto preventcross-threading.

4.Tightentheboltswithawrenchuntiltheyaresecure.

Page 29

Lubrication

G020684

G020685

LubricatingtheBearingsand Seals

ServiceInterval:Aftereachuse—Lubricatethetrunnions.

Monthly—Lubricatethepillow-blockbearings.

Note:Thepillow-blockbearingsareinsidethe cowl—removethedividerplatetoaccessthem;referto

RemovingtheDividerPlate(page28).

Model68024Cdoesnothaveadividerplate.

GreaseType:No.2lithiumgrease.

1.Cleanaroundeachgreasettingwitharagandliftthe plasticcapoffthegreasetting(Figure43).

2.Pumpgreaseintoeachttingasfollows:

•Forthepillow-blockbearings,pump1shotof

greaseintoeachtting(Figure43).

•Forthetrunnions,pumpseveralshotsofgrease

intoeachttinguntilitstartstooozeoutofthe bearinghousing(Figure43).

Important:Pumpgreaseinslowlyandcarefully topreventdamagetothebearingseals.

3.Wipeupanyexcessgrease.

Figure43

1.Pillow-blockbearings3.Fronttrunnion

2.Reartrunnion

Page 30

EngineMaintenance

G020216

ServicingtheAirCleaner

ServiceInterval:Beforeeachuseordaily—Inspectthe

air-cleanerelements.

Every50hours—Cleantheair-cleanerelements.Clean themmorefrequentlyindustyoperatingconditions.

Every300hours/Yearly(whichevercomes rst)—Replacethepaperair-cleanerelement.Replace itmorefrequentlyindustyoperatingconditions.

Important:Donotoperatetheenginewithoutthe air-lterassembly;extremeenginedamagecanoccur.

1.Shutofftheengineandwaitforallmovingpartsto stop.

2.Disconnectthewirefromthesparkplug;referto

DisconnectingtheSpark-PlugWire(page28).

3.Removethenutthatsecuresthecover(Figure44).

Figure44

1.Covernut

2.Cover

3.Wingnut6.Base

4.Removethecover.

Note:Becarefultopreventdirtanddebrisfrom fallingintothebase.

5.Removethefoamandpaperelementsfromthebase (Figure44).

6.Removethefoamelementfromthepaperelement (Figure44).

7.Inspectthefoamandpaperelements,andreplacethem iftheyaredamagedorexcessivelydirty.

8.Ifthepaperelementisexcessivelydirty,replaceit.

Note:Nevertrytobrushdirtoffthepaperelement; brushingforcesthedirtintothebers.

9.Cleanthefoamelementinwarm,soapywaterorin anonammablesolvent.

4.Foamelement

5.Paperelement

Note:Donotusefueltocleanthefoamelement becauseitcouldcreateariskofreorexplosion.

Page 31

10.Rinseanddrythefoamelementthoroughly.

g013375

0 20 40 60 80 100 F

-20 -10 0 10 20 30 40 C

5W - 30 / 10W - 30

G019750

11.Dipthefoamelementincleanengineoil,thensqueeze outtheexcessoil.

Note:Excessoilinthefoamelementrestrictstheair owthroughtheelementandmayreachthepaper lterandclogit.

12.Wipedirtfromthebaseandthecoverwithamoistrag.

DrainingtheEngineOil

WARNING

Oilmaybehotaftertheenginehasbeenrun,and contactwithhotoilcancauseseverepersonalinjury.

Avoidcontactingthehotengineoilwhenyoudrain it.

Note:Becarefultopreventdirtanddebrisfrom enteringtheairductleadingtothecarburetor.

13.Installtheair-cleanerelementsandensurethattheyare properlypositioned.

14.Securelyinstallthecoverwiththenut.

ChangingtheEngineOil

ServiceInterval:Aftertherst25hours

Every100hours

ToroPremiumEngineOilisavailablefromyourAuthorized ToroDealer.

Important:Use4-cycleengineoilthatmeetsorexceeds therequirementsforAPIservicecategory

or higher

68017C,68021C,and68024C1.1L(1.2USqt)

Important:Iftheoillevelinthecrankcaseistoolow ortoohighandyouruntheengine,youmaydamage theengine.Thistypeofdamageisnotcoveredbythe warranty.

SJ , SL, SM,

1.Shutofftheengineandwaitforallmovingpartsto stop.

2.Disconnectthewirefromthesparkplug;referto

DisconnectingtheSpark-PlugWire(page28).

3.Placeadrainpanunderthedrainholeoftheengine (Figure46).

Note:UseSAE10W-30forgeneraluse.Youcanuse theotherviscositiesshowninthechartwhentheaverage temperatureinyourareaiswithintheindicatedrange(Figure

45).

Figure45

Figure46

1.Drainplug3.Drainpan

2.Drainhole

4.Removethedrainplugandcatchtheoilinthedrain pan(Figure46).

5.Whentheoilhasdrainedcompletely,installthedrain plugwithanewwasher(Figure46).

Note:Disposeoftheusedoilatacertiedrecycling center.

FillingtheEngineCrankcasewithOil

1.Removethedipstick(Figure47)andslowlypouroil intothellholeuntiltheoilreachestheupper-limit mark(bottomedgeoftheoil-llhole)onthedipstick.

Page 32

Figure47

G019749

G019300

1 2

1.Oil-llhole3.Oil-levelupperlimit

2.Dipstick

4.Oil-levellowerlimit

2.Replaceandsecurethedipstick.

3.Wipeupanyspilledoil.

ServicingtheSparkPlug

ServiceInterval:Every100hours/Every6months

(whichevercomesrst)—Checkthe sparkplug.

Every300hours/Yearly(whichevercomes rst)—Replacethesparkplug.

Type:NGKBPR6ESorequivalent

Gap:0.7to0.8mm(0.028to0.031inch)

Note:Usea20mm(13/16inch)spark-plugwrenchfor removingandinstallingthesparkplug.

5.Rotatethesparkplugcounterclockwiseusinga20mm (13/16inch)spark-plugwrenchtoremovetheplug andthesealingwasher(Figure49).

Figure49

CheckingtheSparkPlug

Note:Useagappingtool/feelergaugetocheckandadjust

thegap.Installanewsparkplugifnecessary.

1.Lookatthecenterofthesparkplug(Figure50).Ifyou seelightbrownorgrayontheinsulator,theengineis operatingproperly.

Important:Nevercleanthesparkplug.Always replacethesparkplugwhenithasablackcoating, wornelectrodes,anoilylm,orcracks.

RemovingtheSparkPlug

1.Parkthemachineonalevelsurfaceandshutoffthe engine;refertoShuttingOfftheEngine(page24).

2.Ensurethatthemachinesurfacesarecool.

3.Pullthespark-plugwireofftheterminalofthespark plug(Figure48).

1.Sparkplug

4.Cleanaroundthesparkplug.

Figure50

1.Sideelectrode

2.Centerelectrode4.0.7to0.8mm(0.028to

3.Insulator

0.031inch)gap

2.Useagappingtoolforsparkplugsorafeelergaugeto measurethegapbetweenthesideelectrodeandcenter electrode(Figure50).

Figure48

2.Wire

3.Ifthegapisnotwithinthespeciedrange,dothe following:

A.Ifthegapistoosmall,carefullybendtheside

electrodeawayfromthecenterelectrodeuntil thegapbetweentheelectrodesis0.7to0.8mm (0.028to0.031inch).

Page 33

B.Ifthegapistoolarge,carefullybendtheside

G019331

electrodetowardthecenterelectrodeuntilthe gapbetweentheelectrodesis0.7to0.8mm(0.028 to0.031inch).

InstallingtheSparkPlug

Important:Ensurethatthegapbetweenthesideand

centerelectrodesiscorrectbeforeinstallingthespark plug.

1.Threadthesparkplugclockwiseintothespark-plug holebyhand.

Note:Avoidcross-threadingthesparkplugwiththe threadsofthespark-plughole.

2.Rotatesparkplugclockwiseusinga20mm(13/16 inch)spark-plugwrenchuntiltheplugandsealing washerareseated(Figure49).

ServicingtheSparkArrester

CleaningtheSparkArrester

ServiceInterval:Every100hours

Note:Asparkarresterisavailableasanoption.Ifyou requireasparkarrester,contactyourAuthorizedToroService Dealer.

GenuineT orosparkarrestersareapprovedbytheUSDA ForestryService.

WARNING

Iftheenginehasbeenrunning,themuferwillbe hot.

1.Removethedividerplate;refertoRemovingthe

DividerPlate(page28).

3.Tightenthesparkplugasfollows:

•Wheninstallinganin-servicesparkplug,tighten

thepluganadditional1/8to1/4turn.

•Wheninstallinganewsparkplug,tightentheplug

anadditional1/2turn.

4.Pushthespark-plugwireontotheterminalofthespark plug(Figure48).

Note:Model68024Cdoesnothaveadividerplate.

2.Removethe2nuts(8mm)andremovethemufer fromthecylinder(Figure51).

Figure51

1.Deector(if applicable)

2.Protector6.Nut,8mm

3.Screw(6mm)7.Gasket

4.Mufer8.Bolt(8mm)12.Screw(4mm)

3.Removethe3screws(4mm)fromtheexhaust deectorandremovethedeector(Figure51).

4.Removethescrews(5mmand6mm)fromthemufer protector,andremovethemuferprotector(Figure

51).

5.Removethescrew(4mm)fromthesparkarresterand removethesparkarresterfromthemufer(Figure51).

5.Exhaustpipe

9.Sparkarrester

10.Screws(5mm)

11.Exhaustport

Page 34

6.Useabrushtocarefullyremovecarbondepositsfrom

G019332

G0201 19

G020120

thespark-arresterscreen(Figure52).

Note:Replacethesparkarresterifithasbreaksor holes.

Figure53

Figure52

1.Screen

2.Brush

7.Installthesparkarrester,muferprotector,exhaust deector,andmuferinthereverseorderof disassembly.

8.Installthedividerplate;refertoInstallingtheDivider

Plate(page28).

RemovingandInstallingthe Engine

Models68017Cand68021Conly

RemovingtheEngine

WARNING

Thespringisundertensionwheninstalledandcan causepersonalinjury.

1.Anchorbracket

2.Enginedeck

3.Spring-removaltool(Toro part92-5771)

4.Spring-removaltool (springremoved)

5.Spring(springremoved)

7.Removetheboltandnutthatsecuretherearbracket fortheengine-deckhingetotheframeofthemachine (Figure54).

Becarefulwhenremovingthespring .

1.Parkthemachineonalevelsurfaceandshutoffthe engine;refertoDisconnectingtheSpark-PlugWire

(page28).

2.Ensurethattheengineandtheexhaust-systemsurfaces arecool.

3.Removethedividerplate;refertoRemovingand

InstallingtheDividerPlate(page28).

4.Removethebeltguide;refertoRemovingtheBelts

(page39).

5.Removethebelts;refertoRemovingtheBelts(page

39).

6.Usingaspring-removaltool(T oropart92-5771), removethespringfromtheanchorbracketonthe enginedeck(Figure53).

Note:Leavetheotherendofthespringattachedto theframeofthemachine.

Figure54

1.Enginedeck4.Frame

2.Pivot5.Nut

3.Rearhingebracket6.Bolt

8.Liftupontherearedgeoftheenginedeckandremove thehingebracket(Figure54).

9.Slidetheenginedeckrearwardandoutfromthe forwardhingebracket(Figure55).

Note:Donotremovetheforwardhingebracket.

Page 35

G020121

Figure55

G019333

10.Removetheengineandenginedeckfromthemachine (Figure55).

InstallingtheEngine

1.Aligntheengineandenginedecktotherearframeof themachine.

FuelSystem Maintenance

ServicingtheFuelSystem

CleaningtheSedimentCup

ServiceInterval:Every100hours/Every6months

(whichevercomesrst)—Cleanthe sedimentcup.

Yearlyorbeforestorage—Cleanthefuel-sedimentcup.

Underneaththefuelvalveisasedimentcuptocatchdirtin thefuel.

1.Parkthemachineonalevelsurfaceandshutoffthe engine;refertoShuttingOfftheEngine(page24).

2.Ensurethattheengineandtheexhaust-systemsurfaces arecool.

3.Movethefuel-valvelevertotheOFFposition,allthe waytotheleft(Figure56).

4.Unscrewthesedimentcup(Figure56).

5.RemovethefuellterandO-ring(Figure56).

Note:DonotmisplacetheO-ring.

Note:Thedrivepulleyontheenginemustalign

forward.

2.Alignthepivotontheenginedeckwiththeforward hingebracket(Figure55).

3.Slidetheenginedeckforwardandthepivotintothe forwardhingebracket(Figure55).

4.Aligntherearhingebracketwiththepivotonthe engine-deckhinge(Figure55).

5.Liftupontherearedgeoftheenginedeckandslipthe hingebracketontothepivot.

6.Securetherearbrackettotheframeofthemachine usingtheboltandnut(Figure54)removedinstep7of

RemovingtheEngine(page34).

7.Usingaspring-removaltool,(T oropart92-5771), installthetensionspringtotheanchorbracketonthe enginedeck(Figure53).

8.Installthebeltsandbeltguide;refertoReplacingthe

Belts—Belt-DriveModels(page39).

9.Adjustthebeltguide;refertoAdjustingtheBeltGuide

(page40).

10.Installthedividerplate;refertoRemovingand

InstallingtheDividerPlate(page28).

Figure56

1.Fuelvalve(Off)3.Fuellter

2.O-ring4.Sedimentcup

Note:DonotcleantheO-ringinsolvent.

6.Cleanthefuellterandsedimentcupusinga nonammablesolvent,anddryitcarefully.

7.WipetheO-ringwithaclean,drycloth.

8.Installthefuellterinthebottomofthecarburetor (Figure56).

9.AligntheO-ringintothegrooveinthesedimentcup andinstallthesedimentcuptofuel-valvehousing.

Page 36

10.MovetheleverofthefuelvalvetotheONposition(all

G020122

thewaytotheright)andcheckforleaks.Ifitleaks, replacetheO-ring.

DrainingtheFuelTank

1.Removetheengine;refertoRemovingtheEngine

(page34).

DriveSystem Maintenance

ServicingtheGear Case—Gear-CaseModel

2.Removethefuelcapbyrotatingitcounterclockwise.

Figure57

3.Alignadrainpantothehingeoftheenginedeck.

4.Rotatetheengineonthehingesideoftheenginedeck anddrainthefuelfromthetank.

5.Carefullylowertheengineandenginedeck.

6.Installthefuelcap.

7.Installtheengine;refertoInstallingtheEngine(page

35).

Model68024Conly

CheckingtheClutchOperation

ServiceInterval:Beforeeachuseordaily—Checktheclutch

operation(Model68024Conly).

1.MovetheclutchlevertotheOFFposition;referto

ControllingthePaddles(page24).

2.Starttheengine;refertoStartingtheEngine(page23).

3.Ensurethattheenginethrottleissettothe2/3 position.

4.IfthepaddlesrotatewiththeclutchlevertotheOFF positiondothefollowing:

A.Shutofftheengine;refertoShuttingOffthe

Engine(page24).

B.Checktheclutch-leverforce;refertoChecking

theClutchLever(page36).

CheckingtheClutchLever

ServiceInterval:Aftertherst25hours—Checkthe

gear-caseclutch(Model68024Conly).

Important:Checkthegear-caseclutchifthepaddles rotatewhentheclutchleverisintheOFFposition,ifthe paddlesrotateslowly,oriftheclutchbeginstoslip.

1.EnsurethattheengineisOFF;refertoShuttingOff

theEngine(page24).

2.Locatetheclutchleveratthebackofthemachine;refer toClutchLever(page11).

3.MovetheclutchlevertotheOFFposition;referto

ControllingthePaddles(page24).

4.Attachaspringscalewitharangeof15to30kg(35to 55lb)tothegripoftheclutchlever(Figure58).

Page 37

G022166

Figure58

G019900

1.Springscale3.Clutchlever

2.15to30kg(35to55lb)

5.Usingthespringscale,pulltheclutchhandletotheON positionasshowninFigure58.

6.Observethespringscalewhilepullingtoseewhatthe highestpressureiswhenmovingtheclutchhandle fromtheOFFpositiontotheOnposition(Figure58).

Figure59

Note:Normalclutchpressureis15to30kg(35to

55lb).

7.Iftheclutchpressureisgreaterthanorlessthan 15to30kg(35to55lb),contactanAuthorizedT oro ServiceDealer.

CheckingtheGear-CaseOil

ServiceInterval:Every40hours—Checkthegear-caseoil

(Model68024Conly).

Important:Iftheoillevelinthegearcaseistoolow ortoohighandyouruntheengine,youmaydamage theengineorthegearcase.Thistypeofdamageisnot coveredbythewarranty .

OilType:SAE90gearoil

Gear-caseCapacity:2.13L(72oz)

1.Locatethegearcasebetweentheengineandthefront cowl.

2.Attherightsideofthegearcase,examinetheoillevel inthesightglass(Figure59).

1.Fillplug3.Drainplug

2.Sightglass

3.Iftheoillevelisbelowthebottom1/3ofthesight glass,addoilasfollows:

A.Removethellplugfromthellportinthe

housingofthegearcase(Figure59).

B.Slowlyaddthespeciedoilintothellportuntil

theoillevelisbetween1/3and1/2ofthesight glass(Figure59).

C.Cleanthellplug.

D.ApplyPTFEthread-sealingtapetothethreads

oftheplug.

E.Installtheplugintothellportinthehousing

(Figure59).

ReplacingtheGear-CaseOil

ServiceInterval:Every800hours—Replacethegear-case

oil(Model68024Conly).

1.Alignadrainpanwitha3-quartcapacityunderthe drainplug(Figure59).

2.Removethedrainplugfromthedrainport,and completelydrainthegear-caseoil(Figure59).

3.Removethellplug(Figure59).

4.Cleanthedrainandllplugs,andapplyPTFE thread-sealingtapetotheplugthreads.

5.Installthedrainpluginthedrainport(Figure59).

6.Slowlyaddthespeciedoilintothellportuntilthe oillevelisbetween1/3and1/2ofthesightglass (Figure59).

7.Installthellpluginthellport(Figure59).

Page 38

BeltMaintenance

G019976

G020006

ServicingtheBelts—Belt-Drive Models

Models68017Cand68021Conly

InspectingtheBelts

ServiceInterval:Aftertherst25hours—Inspectthebelts

andadjustasnecessary.

Every40hours—Inspectthebeltsandadjustas necessary.

1.Removethedividerplate;refertoRemovingthe

DividerPlate(page28).

2.MovetheclutchlevertotheOFFposition;referto

ControllingthePaddles—Belt-driveModels(page24).

3.Examinethebeltsforwearordamage.Ifthebeltsare wornordamaged,replacethem;refertoServicingthe

Belts—Belt-DriveModels(page38).

4.Examinethepulleysforwear,damage,and misalignment;refertoReplacingtheBelts—Belt-Drive

Models(page39).

5.Installthedividerplate;refertoInstallingtheDivider

Plate(page28).

AdjustingtheBeltT ension

Clutchairgap:6to10mm(1/4to3/8inch)

1.MovetheclutchlevertotheONposition;referto

ControllingthePaddles(page24).

2.Measuretheairgapbetweentheenginedeckandthe rollerontheclutch(Figure60).

Figure60

1.Enginedeck

2.Clutchroller

3.Ifthemeasuredairgapisnotwithinthespecied range,adjustthegapasfollows:

A.MovetheclutchlevertotheOFFposition;refer

toControllingthePaddles(page24).

B.Loosenthenutsandboltsthatsecuretheengine

totheenginedeck(Figure61).

3.Clutchairgap:6to10mm (1/4to3/8inch)

Figure61

1.Idlerpulley3.Nutandbolt

2.Setscrew

C.Movetheenginepositionasfollows:

•Increasetheairgap—movetheengine

awayfromtheidlerpulley(Figure61).

•Decreasetheairgap—movetheengine

towardtheidlerpulley(Figure61).

D.Alignastraightedgeacrosstheenginepulleyand

theidlerpulley(Figure62).

4.Enginedeck

Page 39

G020009

1 2

6 7 8

Figure62

G020010

G020012

Figure63

1.Bolt2.Beltguide

4.Sliptheforwardbeltforwardandofftheidlerpulley (Figure64).

1.Enginepulley

2.Idlerpulley6.Jamnut

3.Reductioncase(engine)7.Setscrew

4.Beltguide

5.Idlershaft

8.Straightedge

E.Ifneeded,pivottheengineontheenginedeck

untiltheenginepulleyandtheidlerpulleyare alignedtothestraightedge(Figure62).

F.Tightenthenutsandboltsthatsecuretheengine

totheenginedecktoatorqueof18N∙m(13ft-lb).

G.Checktheairgapbetweentheenginedeckand

therollerontheclutch.Iftheairgapisnotwithin thespeciedrange,repeatstep3untiltheairgap measurementiswithinthespeciedrange.

H.Installthedividerplate;refertoInstallingthe

DividerPlate(page28).

Replacingthe Belts—Belt-DriveModels

ServiceInterval:Every2years—Replacethebelts.

Models68017Cand68021Conly

RemovingtheBelts

1.MovetheclutchlevertotheOFFposition;referto

2.Removethedividerplate;refertoRemovingthe

3.Removetheboltthatsecuresthebeltguidetothe

ControllingthePaddles—Belt-driveModels(page24).

DividerPlate(page28).

engine,andremovethebeltguide(Figure63).

Figure64

1.Enginepulley3.Idlerpulley

2.Forwardbelt4.Rearbelt

5.Sliptherearbeltrearwardandofftheidlerpulley (Figure64).

6.Slipthebeltsofftheenginepulley.

7.Removethebeltsfromthemachine.

InstallingtheBelts

1.EnsurethattheclutchleverisintheOFFposition; refertoControllingthePaddles—Belt-driveModels

(page24).

2.Aligntherearbelttothereargrooveintheengine pulley.

Note:Donotaligntherearbelttotheidlerpulley .

3.Aligntheforwardbelttotheforwardgrooveofthe idlerpulley.

4.Sliptherearbeltovertheidlerpulleyandalignthebelt totherearpulleygroove.

Page 40

5.Sliptheforwardbeltovertheenginepulleyandalign

G02001 1

3 4

thebelttotheforwardpulleygroove.

6.Checkthebelttension;refertostep1,step2,andstep

3inAdjustingtheBeltTension(page38).

7.Looselysecurethebeltguidetotheengine(Figure63) withtheboltthatwasremovedinstep3ofRemoving

theDividerPlate(page28).

8.Adjustthebeltguide;refertoAdjustingtheBeltGuide

(page40).

9.Installthedividerplate;refertoInstallingtheDivider

Plate(page28).

AdjustingtheBeltGuide

Important:Thebeltguideshouldnot

contactthebeltswiththeclutchleverinthe ONposition.

Note:Iftheairgapbetweenthebeltguideand bothbeltscannotbeattained,thenoneofthe beltsistoolong.

C.Tightentheboltthatsecuresthebeltguidetothe

engine(Figure65).

D.Checktheclutchoperation;refertoControlling

thePaddles(page24).

5.Installthedividerplate;refertoInstallingtheDivider

Plate(page28).

Note:Toaccessthebeltguide,removethedividerplate; refertoRemovingtheDividerPlate(page28).

Guideairgap:2.5to4.0mm(3/32to5/32inch)

1.EnsurethattheclutchleverisintheONposition;refer toControllingthePaddles(page24).

2.Ensurethatthebelttensioniscorrect;referto

AdjustingtheBeltGuide(page40).

3.Checkthattheairgapbetweenthebeltguideandthe beltsis2.5to4.0mm(3/32to5/32inch);referto

Figure65.

CheckingtheClutchOperation

ServiceInterval:Every40hours—Checktheclutch

operation(Models68014C,68017C,

and68021Conly).

Important:Thepaddlesmustnotrotateinanempty drumwhentheclutchleverisintheOFFposition.

1.MovetheclutchlevertotheOFFposition;referto

ControllingthePaddles(page24).

2.Starttheengine;refertoStartingtheEngine(page23).

3.IfthepaddlesrotatewiththeclutchlevertotheOFF positiondothefollowing:

A.Shuttingofftheengine;refertoShuttingOffthe

Engine(page24).

B.Checktheairgapbetweenthebeltguideandthe

belts.

Note:Iftheairgapislargerthan4.0mm(0.16 inch),decreasethegapbetweenthebeltguide andthebelts;refertoAdjustingtheBeltGuide

(page40).

1.Enginepulleys4.Beltguide

2.Belts5.Bolt

3.Guideairgap:2.5to4.0 mm(3/32to5/32inch)

4.Iftheairgapisnotwithinthespeciedrange,dothe following:

A.Loosentheboltthatsecuresthebeltguidetothe

engine(Figure65).

Important:Ensurethatthebeltguideis towardtheenginepulley.

B.Rotatethebeltguideupordownuntilthereis

anairgapof2.5to4.0mm(3/32to5/32inch) betweentheguideandeachbelt(Figure65).

4.Repeatsteps1,2,and3untilallthefollowing conditionsaremet:

Figure65

•Theengineisrunat2/3throttle.

•TheclutchleverisintheOFFposition;referto

ControllingthePaddles(page24)

•Thepaddlesdonotrotateinanemptydrum.

Page 41

Aligningthe

G020015

53 6

1 2

G020829

G020830

Pulleys—Belt-driveModels

Models68017Cand68021Conly

ReplacingtheLight Bulbs

1.Removethedividerplate;refertoRemovingthe

DividerPlate(page28).

2.Placeastraightedgeacrossthefaceoftheenginepulley andtheidlerpulley(Figure66).

Figure66

1.Enginepulley

2.Idlerpulley5.Locknut

3.Straightedge6.Setscrew

Note:Bothpulleysmustbealignedushwiththe straightedge.

4.Idlershaft

ReplacingtheRear-Facing TaillightBulbs

Note:Theleftrear-facingbulbalsoilluminateslicenseplate.

1.Useascrewdrivertoremovethe4screwsfromthe largesquarelensonthelight(Figure67).

Figure67

2.Removethelens(Figure67).

3.Pushandtwistthebulbcounterclockwisetoremoveit fromthesocket(Figure67).

4.Pushanew1157bulbintothesocketandthentwistit clockwise(Figure67).

5.Installthelensandthe4screws(Figure67).

3.Ifthepulleysarenotaligneddothefollowing:

A.MovetheclutchlevertotheOFFposition;refer

toControllingthePaddles(page24).

B.Loosenthelocknutsandsetscrewsthatsecurethe

idlerpulleytotheidlershaft(Figure66).

C.Usingasoft-facemallet,taptheidlerpulley

forwardorbackwardalongtheidlershaftuntil theenginepulleyandtheidlerpulleyarealigned tothestraightedge(Figure66).

D.Tightenthesetscrewsandlocknutsthatsecurethe

4.Installthedividerplate;refertoInstallingtheDivider

idlerpulleytotheidlershaft(Figure66).

Plate(page28).

ReplacingtheSide-Facing TaillightBulbs

1.Useascrewdrivertoremovethe2screwsfromthe smallrectangularlensonthesideofthelight(Figure

68).

Figure68

Page 42

2.Removethelens(Figure68).

3.Pullthebulboutofthesocket(Figure68).

4.Pushanew168bulbintothesocket(Figure68).

5.Installthelensandthe2screws(Figure68).

MaintainingtheMixing Paddles

AdjustingthePaddles

ReplacingtheFrontAmber Bulbs

1.Usingascrewdriver,removethe2screwsfromthe amberlensonthefrontofthelight(Figure69).

Figure69

2.Removetheamberlens(Figure69).

3.Pullthebulboutofthesocket(Figure69).

AligningtheCircumferentialDrum Wipers

1.Rotateapaddlefromtheleftrowofpaddlesaround thedrumandlocate,attheinteriorofthedrum,the smallestdistancebetweenthedrumandthewiperof thepaddle(Figure70).

2.Marktheinsideofthedrumatthelocationthatyou determinedinstep1.

4.Insertanew193bulbintothesocket(Figure69).

5.Installtheamberlensandthe2screws(Figure69).

Figure70

3.Alignthewiperofapaddletothemark.

4.Loosenthecarriageboltsandangelocknutsthat securethepaddlebladeandwipertothepaddle(Figure

71).

Page 43

Figure71

1.Wiper4.Paddleblade

2.Distancebetween paddle-bladeedgeand wiperedge—3to6mm (1/8to1/4inch)

3.Wiperbar

5.Carriageboltandange locknut

5.Adjustthepositionofthewipersothatthewiperis within6mm(1/4inch)ofthedrumacrossthelength ofthewiper(Figure72).

AligningtheEndPaddleWipers

1.Rotatethewiperandxedpaddlearoundtheendplate ofthedrumandlocatesmallestdistancebetweenthe drumandthewiperofthepaddle.

2.Marktheinsideoftheendplateatthelocationthatyou determinedinstep1.

Figure73

1.Carriageboltandange locknut

2.Closestpointofcontact

3.Drumendplate

Figure72

1.Wiperiswithin6mm(1/4inch)ofthedrumatthesmallest distancebetweenthedrumandthewiperofthepaddle

6.Adjustthepositionofthepaddlebladesothatthe outeredgeis3to6mm(1/8to1/4inch)fromthe outeredgeofthewiper.

7.Torquethecarriageboltsandnutsto19to25N∙m (14to18ft-lb).

8.Repeatsteps4through7fortheotherpaddleforthat paddlerow .

9.Repeattheprocedurefortheotherpaddlerows.

3.Alignthewiperofapaddletothemark.

4.Loosenthecarriageboltsandangelocknutsthat securethepaddlebladeandwipertothexedpaddle. (Figure73)

5.Adjustthepositionofthewipersothatthewiperis within6mm(1/4inch)oftheendplateacrossthe lengthofthewiper.

6.Adjustthepositionofthepaddlebladesothatthe outeredgeofthebaris3to6mm(1/8to1/4inch) fromtheouteredgeofthewiper.

7.Torquethecarriageboltsandnutsto19to25N∙m (14to18ft-lb).

8.Repeattheprocedureforthewiperattheendplateon theotherendofthedrum.

Page 44

Cleaning

Storage

CleaningtheMachine

Regularcleaningandwashingincreasethelifespanofthe machine.Cleanthemachineaftereachuse,beforethemortar hardens.

Ensurethatthefuel-tankcapandoilcap/dipstickaresecure toavoidgettingwaterinthetank.

Usecarewhenusingahigh-pressuresprayerbecauseitcan damagethewarningdecals,instructionsigns,andtheengine.

Important:Lubricatethetrunnionsaftercleaning;refer toLubricatingtheBearingsandSeals(page29).

StoringtheMachine

Forstorageover30days,preparethemachineasfollows:

1.Removedirtandgrimefromtheexternalpartsofthe entiremachine,especiallytheengine.Cleandirtand debrisfromtheoutsideoftheenginecylinder-head nsandblowerhousing.

Important:Youcanwashthemachinewithmild detergentandwater.

2.Conditionthefuelsystemasfollows:

A.Addapetroleum-basedstabilizer/conditionerto

fuelinthetank.Followthemixinginstructions fromthestabilizermanufacturer.Donotusean alcohol-basedstabilizer(ethanolormethanol).

Important:Donotstore stabilizer/conditionedfuelover90days.

Note:Fuelstabilizer/conditionerismost effectivewhenmixedwithfreshfuelandusedat alltimes.

B.Runtheenginefor5minutestodistributethe

conditionedfuelthroughthefuelsystem.

C.Shutofftheengine,allowittocool,anddrainthe

fueltankusingapump-typesiphon.Disposeof fuelproperly;recycleitaccordingtolocalcodes.

D.Starttheengineandrunituntilitstops.

E.Choketheengine.

F.Startandruntheengineuntilitdoesnotstart

again.

3.Cleanthesedimentcup;refertoCleaningtheSediment

Cup(page35).

4.Servicetheaircleaner;refertoServicingtheAir

Cleaner(page30).

5.Changetheengine-crankcaseoil;refertoChangingthe

EngineOil(page31).

6.Removethesparkplugandcheckthecondition;refer toRemovingtheSparkPlug(page32).

7.Conditiontheengineasfollows:

A.Removethesparkplugandpour2tablespoons

ofengineoilintothespark-plughole;referto

RemovingtheSparkPlug(page32).

B.Pulltherecoil-starthandleslowlytocrankthe

engineanddistributetheoilinsidethecylinder.

C.Installthesparkplug;refertoInstallingtheSpark

Plug(page33).

Note:Donotinstallthewireonthesparkplug.

8.Greasethemachine;refertoLubricatingtheBearings

andSeals(page29).

Page 45

9.Checkandtightenallbolts,nuts,andscrews.Repairor replaceanypartthatisdamaged.

10.Paintallscratchedorbare-metalsurfaces.Paintis availablefromyourAuthorizedToroDealer.

11.Storethemachineinaclean,drygarageorstoragearea.

12.Coverthemachinetoprotectitandkeepitclean.

Page 46

Troubleshooting

Problem

Theenginedoesnotstart.

Theenginelackspowerorrunsrough.

PossibleCauseCorrectiveAction

1.Thefuel-valveleverisintheOFF position.

2.Thechokeisclosed

3.Thechokeisopen.

4.TheengineON/OFFswitchisinthe OFFposition.

5.Theengine-oillevelislow(engines withtheoil-levelswitch).

6.Thefueltankisempty.6.Fillthefueltankwithfreshfuel.

7.Theenginecontainsbad/oldfuel.7.Drainthefueltankandcarburetor .

8.Thesparkplugisfouledorimproperly gapped.

9.Thesparkplugiswetwithfuel(ooded engine).

10.Thespark-plugwireislooseor disconnected.

1.Theairlterisrestricted.1.Cleanorreplacetheair-lter

2.Theenginecontainsbad/oldfuel.2.Drainthefueltankandcarburetor .

3.Thereiswaterorcontaminationinthe fuel.

4.Thefuellineisrestricted.4.Cleanthefuellterandsedimentcup.

5.Thechokeisclosed

6.Thesparkplugiswornorhasbuildup ontheelectrodes.

7.Thereistoomuchoilintheengine crankcase.

1.Movethefuel-valvelevertotheON position.

2.OPENthechokewhenstartingahot engine.

3.CLOSEthechokewhenstartingacold engine.

4.RotatetheswitchtotheONposition.

5.Filltheengine,withtherecommended oil,totheproperlevel.

Refuelwithfreshfuel.

8.Gaporreplacethesparkplug.

9.Removethesparkplug,dryit,and installtheplug.Starttheenginewith thethrottleintheMAXposition.

10.Removethespark-plugwire,cleanthe spark-plugterminalandtheterminal socketinthebootofthespark-plug wire,andreinstallthespark-plugwire.

element(s).

Refuelwithfreshfuel.

3.Drainthefueltankandcarburetor. Refuelwithfreshfuel.

5.Openthechoke.

6.Checktheelectrodegapandadjustor replacethesparkplug.

7.Draintheoiltotheproperlevel.

Thebeltssliporcomeoffthepulleys (Models68014C,68017C,and68021C).

isintheOFFposition(Models68017Cand 68020C).

Thepaddlesrotatewhentheclutchlever isintheOFFposition(Model68024C).

leverisintheONposition(Models68017C and68021C).

Thepaddlesdonotrotatewhentheclutch leverisintheONposition(Model68024C).

1.Thebelttensionisinsufcient.

2.Thebeltsareworn.2.Replacethebelts.

3.Thepulley(s)areworn.3.ContactyourAuthorizedService

4.Thepulley(s)aremisaligned.4.Alignthepulley(s).

1.Theclutchleverisnotadjusted correctly.

2.Thebeltguideisnotadjustedcorrectly.2.Adjustthebeltguide.

1.Theclutchisnotadjustedcorrectly.

1.Theclutchleverisnotadjusted correctly.

2.Thepaddlesarestuckinthedrum

1.Theclutchisnotadjustedcorrectly.

1.Adjustthebelttension.

Dealer.

1.Adjustthebelttension. Thepaddlesrotatewhentheclutchlever

1.ContactyourAuthorizedService Dealer.

1.Adjustthebelttension. Thepaddlesdonotrotatewhentheclutch

2.Cleanthepaddlesanddrum.

1.ContactyourAuthorizedService Dealer.

Page 47

Problem

PossibleCauseCorrectiveAction

Thepaddlesrotateslowlywhentheclutch leverisintheONposition(Models68017C and68021C).

Thepaddlesrotateslowlywhentheclutch leverisintheONposition(Model68024C).

1.Theclutchleverisnotadjusted correctly.

1.Theclutchisnotadjustedcorrectly.

1.Adjustthebelttension.

1.ContactyourAuthorizedService Dealer.

Page 48

Alimitedwarranty(seewarrantyperiodsbelow)

TheToroWarranty

Concrete, Masonry,and Compaction Equipment

ConditionsandProductsCovered

TheT oroCompanyanditsafliate,T oroWarrantyCompany,pursuantto anagreementbetweenthem,jointlywarrantyourT oroConcrete,Masonry, andCompactionEquipmentProductslistedbelowtobefreefromdefectsin materialsorworkmanship.

Thiswarrantycoversthecostofpartsandlabor,butyoumustpay transportationcosts.

Thefollowingtimeperiodsapplyfromthedateofpurchase:

ProductsWarrantyPeriod

ConcreteMixers

•SpindleBearingsLifetime*(originalowneronly) MortarMixers1year

•DrumBearingsandSealsLifetime*(originalowneronly) ForwardPlateCompactors ReversiblePlates1year RammerCompactors MudBuggy1year VibratingTrenchRoller2years ConcreteSaws MasonrySaws PowerTrowels1year Screeds ConcreteVibrators

Whereawarrantableconditionexists,wewillrepairtheProductatnocost toyouincludingdiagnosis,labor,andparts.

LifetimeWarranty-Ifthebearing(s)orseal(s)onyourmixerfail,itwillbereplacedunderwarranty,

atnocostforpartsorlabor.

1year

2years

1year 1year

InstructionsforObtainingWarrantyService

IfyouthinkthatyourT oroProductcontainsadefectinmaterialsor workmanship,followthisprocedure

1.ContactanyAuthorizedServicingOutlettoarrangeserviceattheir dealership.T olocateoneconvenienttoyou,accessourwebsiteat www.T oro.com.Select“WheretoBuy”andselect“Contractor”under producttype.Y oumayalsocallourtollfreenumberbelow.

2.Bringtheproductandyourproofofpurchase(salesreceipt)tothem.

3.IfforanyreasonyouaredissatisedwiththeServiceOutlet’sanalysis orwiththeassistanceprovided,contactusat:

SWSCustomerCareDepartment ToroWarrantyCompany 811 1LyndaleAvenueSouth Bloomington,MN55420-1196 TollFree:800-888-9926

ToroAuthorizedRentalCustomerswhohavepurchasedproductsdirectlyfromToroandhave

signedtheT oroRentalCustomerAgreementhavetheabilitytoperformtheirownwarrantywork.

PleasevisitT oro’sRentalPortalforelectronicwarrantyclamlingproceduresorcallthetollfree

numberabove.

OwnerResponsibilities

YoumustmaintainyourToroProductbyfollowingthemaintenance proceduresdescribedintheOperator’sManual.Suchroutinemaintenance, whetherperformedbyadealerorbyyou,isatyourexpense.Parts scheduledforreplacementasrequiredmaintenance(“MaintenanceParts”), arewarrantedfortheperiodoftimeuptothescheduledreplacementtime

forthatpart.Failuretoperformrequiredmaintenanceandadjustmentscan begroundsfordisallowingawarrantyclaim.

ItemsandConditionsNotCovered

Notallproductfailuresormalfunctionsthatoccurduringthewarrantyperiod aredefectsinmaterialsorworkmanship.Thisexpresswarrantydoesnot coverthefollowing:

•Productfailureswhichresultfromtheuseofnon-Tororeplacement

parts,orfrominstallationanduseofadd-on,modied,orunapproved accessories

•Productfailureswhichresultfromfailuretoperformrequired

maintenanceand/oradjustments

•ProductfailureswhichresultfromoperatingtheProductinanabusive,

negligentorrecklessmanner

•Partssubjecttoconsumptionthroughuseunlessfoundtobedefective.

Examplesofpartswhichareconsumed,orusedup,duringnormal productoperationinclude,butarenotlimitedto,belts,wipers,spark plugs,tires,lters,gaskets,wearplates,seals,O-rings,drivechains, clutches.

•Failurescausedbyoutsideinuence.Itemsconsideredtobeoutside

inuenceinclude,butarenotlimitedto,weather,storagepractices, contamination,useofunapprovedcoolants,lubricants,additives,or chemicals,etc.

•Normal“wearandtear”items.Normal“wearandtear”includes,butis

notlimitedto,wornpaintedsurfaces,scratcheddecals,etc.

•Repairsnecessaryduetofailuretofollowrecommendedfuel

procedure(consultOperator'sManualformoredetails)

–Removingcontaminantsfromthefuelsystemisnotcovered

–Useofoldfuel(morethanonemonthold)orfuelwhichcontains

morethan10%ethanolormorethat15%MTBE

–Failuretodrainthefuelsystempriortoanyperiodofnon-use

overonemonth

•Anycomponentcoveredbyaseparatemanufacturer’swarranty

•Pickupanddeliverycharges

GeneralConditions

RepairbyanAuthorizedServicingOutletorSelf-ServiceasanAuthorized RentalCustomerisyoursoleremedyunderthewarranty.

NeitherTheToroCompanynorToroWarrantyCompanyisliablefor indirect,incidentalorconsequentialdamagesinconnectionwiththe useoftheToroProductscoveredbythiswarranty,includingany costorexpenseofprovidingsubstituteequipmentorserviceduring reasonableperiodsofmalfunctionornon-usependingcompletionof repairsunderthiswarranty .Allimpliedwarrantiesofmerchantability andtnessforusearelimitedtothedurationofthisexpresswarranty. Somestatesdonotallowexclusionsofincidentalorconsequential damages,orlimitationsonhowlonganimpliedwarrantylasts,sothe aboveexclusionsandlimitationsmaynotapplytoyou.

Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveother rightswhichvaryfromstatetostate.

ExceptfortheenginewarrantycoverageandtheEmissionswarranty referencedbelow,ifapplicable,thereisnootherexpresswarranty .The EmissionsControlSystemonyourProductmaybecoveredbyaseparate warrantymeetingrequirementsestablishedbytheU.S.Environmental ProtectionAgency(EPA)ortheCaliforniaAirResourcesBoard(CARB). RefertotheCaliforniaEmissionControlWarrantyStatementsuppliedwith yourProductorcontainedintheenginemanufacturer’sdocumentationfor details.

CountriesOtherthantheUnitedStatesorCanada

CustomerswhohavepurchasedT oroproductsoutsidetheUnitedStatesorCanadashouldcontacttheirT oroDistributor(Dealer)toobtainguarantee policiesforyourcountry,province,orstate.IfforanyreasonyouaredissatisedwithyourDistributor'sserviceorhavedifcultyobtainingguarantee information,contacttheT oroimporter.Ifallotherremediesfail,youmaycontactusatT oroWarrantyCompany.

AustralianConsumerLaw:AustraliancustomerswillnddetailsrelatingtotheAustralianConsumerLaweitherinsidetheboxoratyourlocalToro Dealer.

374-0288RevC