Toro 68046, 68045 Operator's Manual

FormNo.3374-363RevA

G019180

CS-1andCS-2ConcreteSaw

ModelNo.68045—SerialNo.313000001andUp

ModelNo.68046—SerialNo.313000001andUp

Registeratwww.T oro.com.
OriginalInstructions(EN)

*3374-363*A

WARNING

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G019181

Introduction

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,

orotherreproductiveharm.

Useofthisproductmaycauseexposureto
chemicalsknowntotheStateofCalifornia

tocausecancer,birthdefects,orother

reproductiveharm.

DANGER

Theremaybeburiedpower,gas,and/ortelephone
linesintheworkarea.Shockorexplosionmay
occurifyoucutintothem.

Thismachineisdesignedtoatsawasphaltandconcrete.It
isnotintendedtocutwoodanyothermaterialotherthan
asphaltandconcrete.

Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely .

YoumaycontactTorodirectlyatwww .Toro.comforproduct
andaccessoryinformation,helpndingadealer,ortoregister
yourproduct.

Wheneveryouneedservice,genuineToroparts,oradditional
information,contactanAuthorizedServiceDealerorToro
CustomerServiceandhavethemodelandserialnumbers
ofyourproductready.Figure1showsthelocationofthe
modelandserialnumbersontheproduct.Writethenumbers
inthespaceprovided.

Havethepropertyorworkareamarkedforburied
linesanddonotdiginmarkedareas.Contactyour
localmarkingserviceorutilitycompanytohavethe
propertymarked(forexample,intheUnitedStates,
call811forthenationwidemarkingservice).

Becauseinsomeareastherearelocal,state,orfederal
regulationsrequiringthatasparkarresterbeusedonthe
engineofthismachine,asparkarresterisincorporatedwith
themuferassembly.

GenuineTorosparkarrestersareapprovedbytheUSDA
ForestryService.

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

Figure1

1.Modelandserialnumberplate

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafetyalertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.

©2012—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Contactusatwww.T oro.com.

2

PrintedintheUSA.

AllRightsReserved

Safety

Figure2

1.Safetyalertsymbol

Thismanualuses2otherwordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.

Contents

Introduction..................................................................2

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

SafeOperatingPractices...........................................3

SafetyandInstructionalDecals.................................5

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

Controls................................................................8

Specications........................................................10

Attachments/Accessories........................................10

Operation....................................................................11

BeforeyouStart.....................................................11

AdjustingtheHandleBar(Model68046)....................11

RemovingandInstallingtheSawBlade......................11

AdjustingtheCuttingDepth....................................14

AligningthePointer................................................15

AddingFuel...........................................................16

ServicingtheEngineOil..........................................18

StartingandStoppingtheEngine..............................19

CuttingtheJob-SiteSurface.....................................20

ChangingtheCuttingPosition..................................22

TransportingtheMachine........................................25

Maintenance.................................................................26

RecommendedMaintenanceSchedule(s)......................26

Lubrication...............................................................27

GreasingtheMachine.............................................27

LubricatetheElevationScrew..................................27

EngineMaintenance..................................................28

ServicingtheAirFilter............................................28

ChangingtheEngineOil.........................................29

ServicingtheFuelSystem........................................30

ServicingtheSparkPlug..........................................31

ServicingtheSparkArrester.....................................32

BeltMaintenance......................................................33

ServicingtheDriveBelts.........................................33

SawBladeMaintenance...............................................38

CheckingtheConditionandFunction.......................38

Cleaning...................................................................40

CleaningtheMachine..............................................40

Storage........................................................................40

StoringtheMachine................................................40

Troubleshooting...........................................................42

Improperuseormaintenancebytheoperatororowner
canresultininjury.Toreducethepotentialforinjury,
complywiththesesafetyinstructionsandalways
payattentiontothesafetyalertsymbol,which
means:
instruction.Failuretocomplywiththeinstructionmay
resultinpersonalinjuryordeath.

Caution

,

W ar ning

,or

Danger

—personalsafety

SafeOperatingPractices

Thisproductiscapableofamputatinghandsandfeet.Always
followallsafetyinstructionstoavoidseriousinjuryordeath.

WARNING

Engineexhaustcontainscarbonmonoxide,an
odorless,deadlypoisonthatcankillyou.

Donotruntheengineindoorsorinanenclosed
area.

WARNING

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

•Controldust,mist,andfumesatthesource
wherepossible.Watershouldbeusedfordust
suppressionwhenfeasible.

•Usegoodworkpracticesandfollowthe
recommendationsofthemanufactureror
suppliers,OSHA,andotheroccupationaland
tradeassociations.

•Alwaysfollowrespiratoryprecautions.

•Whenthehazardsfrominhalationcannotbe
eliminated,theoperatorandanybystanders
shouldweararespiratorapprovedbyOSHAfor
thematerialbeinghandled.

Training

•ReadtheOperator'sManualandothertrainingmaterial.If

theoperator(s)ormechanic(s)cannotreadEnglish,itis
theowner'sresponsibilitytoexplainthismaterialtothem.

•Becomefamiliarwiththesafeoperationoftheequipment,

operatorcontrols,andsafetysigns.

•Alloperatorsandmechanicsshouldbetrained.The

ownerisresponsiblefortrainingtheusers.

3

•Neverletchildrenoruntrainedpeopleoperateorservice

theequipment.Localregulationsmayrestricttheageof
theoperator.

•Theowner/usercanpreventandisresponsiblefor

accidentsorinjuriesoccurringtohimselforherself,other
peopleorproperty.

Preparation

•Decidewhetherwetcuttingordrycuttingisperformed

andevaluatethejobsitematerial(s)todeterminewhat
bladeapplicationisneededtoproperlyandsafelyperform
thejob.Onlyusebladesapprovedforthecutting
operationbythemanufacturerofthesawblade.

•Wearappropriateclothingincludinghardhat,faceshield,

safetyglasses,longpants,safetyshoes,respiratorordust
mask,andhearingprotection.Longhair,looseclothing,
orjewelrymaygettangledinmovingparts.

•Inspectthejobsitewheretheequipmentistobeused

andremoveallobjectssuchasloosesitematerials,rocks,
woodproducts,toolsandhardwarewhichcanbethrown
bythemachine.

•Useextracarewhenhandlinggasolineandotherfuels.

Theyareammableandvaporsareexplosive.

–Useonlyanapprovedcontainertostoreandtransport

fuel.

–Neverremovethegascaporaddfuelwiththeengine

running.Allowtheenginetocoolbeforerefueling.
Donotsmokewhilefuelingthemachine.

–Neverrefuelordrainthemachineindoors.

•Checkthattheguardsareattachedandfunctioning

properly.Donotoperateunlesstheyarefunctioning
properly.

Operation

•Neverrunanengineinanenclosedarea.

•Onlyoperateingoodlight,keepingawayfromholesand

hiddenhazards.

•Ensurethatthebladeiselevatedabovethejob-site

surfacebeforestartingtheengine.Onlystarttheengine
fromtheoperator’sposition.

•Elevatethebladeabovethejob-sitesurfaceaftereach

cuttingpass.

•Ensurethatthebladeiselevatedwhenmovingthe

machinetothejobsite,fromthejobsite,andtoanew
cuttingpath.

•Neveroperatewiththeguardsnotsecurelyinplace.

•Donotchangetheenginegovernorsettingorover-speed

theengine.

•Beforeleavingtheoperatorpositionforanyreason,

elevatethebladeabovethesitesurface,reducethethrottle
toidle,andpressthestopswitch.

•Keephandsandfeetawayfromtheblade.

•Lookbehindanddownbeforebackinguptobesureof

aclearpath.

•Keeppetsandbystandersaway.

•Usecaremovingthemachinebetweenjobsites.Slow

downwhenandusecautionwhenmakingturnsand
whencrossingroadsandsidewalks.

•Donotoperatethemachineundertheinuenceof

alcoholordrugs.

•Usecarewhenloadingorunloadingthemachineintoa

trailerortruck.

•Ensurethattheareaisclearofotherpeoplebefore

operatingthemachine.Stopthemachineifanyoneenters
thearea.

•Neverleavearunningmachineunattended.Always

elevatetheblade,stoptheengineandverifytheblade
hasstoppedrotating.

•Neverjerkthecontrols;useasteadymotion.

•Watchfortrafcwhenoperatingnearorcrossing

roadways.

•Donottouchpartswhichmaybehotfromoperation.

Allowthemtocoolbeforeattemptingtomaintain,adjust,
orservice.

•Ensurethatyouoperatethemachineinareaswhere

therearenoobstaclesincloseproximitytotheoperator.
Failuretomaintainadequatedistancefromtrees,walls,
andotherbarriersmayresultininjuryasthemachine
backsupduringoperationiftheoperatorisnotattentive
tothesurroundings.Onlyoperatetheunitinareaswhere
thereissufcientclearancefortheoperatortosafely
maneuvertheproduct.

•Locatethepinchpointareasmarkedonthemachineand

keephandsandfeetawayfromtheseareas.

•Lightningcancausesevereinjuryordeath.Iflightning

isseenorthunderisheardinthearea,donotoperate
themachine;seekshelter.

MaintenanceandStorage

•Elevatethebladeabovethejob-sitesurfaceandstop

theengine.Waitforthebladetostopbeforeadjusting,
cleaning,orrepairing.

•Cleandebrisfromtheblade,bladeguard,mufers,and

enginetohelppreventres.Cleanupoilorfuelspillage.

•Lettheenginecoolbeforestoringanddonotstorenear

ame.

•Donotstorefuelnearamesordrainindoors.

•Parkthemachineonlevelground.Neverallowuntrained

personneltoservicethemachine.

•Usejackstandstosupportcomponentswhenrequired.

•Carefullyreleasepressurefromcomponentswithstored

energy.

•Removethesparkplugwirebeforemakinganyrepairs.

4

•Keephandsandfeetawayfrommovingparts.Ifpossible,

donotmakeadjustmentswiththeenginerunning.

•Keepallpartsingoodworkingconditionandallhardware

tightened.Replaceallwornordamageddecals.

–Neverrefuelthemachineindoors.

–Neverstorethemachineorfuelcontainerinside

wherethereisanopename,suchasnearawater
heaterorfurnace.

•Keepnutsandboltstight.Keepequipmentingood

condition.

•Nevertamperwithsafetydevices.

•Keepthemachinefreeofgrass,leaves,orotherdebris

buildup.Cleanupoilorfuelspillage.Allowthemachine
tocoolbeforestoring.

•Useextracarewhenhandlinggasolineandotherfuels.

Theyareammableandvaporsareexplosive.

–Useonlyanapprovedcontainertostorefuel.

–Neverremovethegascaporaddfuelwhenthe

engineisrunning.Allowtheenginetocoolbefore
refueling.Donotsmoke.

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.Replaceanydecalthatisdamagedorlost.

–Neverllacontainerwhileitisinsideavehicle,the

cargoboxofatruck,oranysurfaceotherthanthe
ground.

–Keepcontainernozzleincontactwiththetankduring

lling.

•Stopandinspecttheequipmentifyoustrikeanobject.

Makeanynecessaryrepairsbeforerestarting.

•UseonlygenuineTororeplacementpartstoensurethat

originalstandardsaremaintained.

117–4979

1.Rotatingbelt—Keepguardinplace

1.Warning—readthe
Operator’sManual.

2.Warning—keephands
awayfromhotsurfaces.

125–4921

3.Entanglementhazard,
belt—keephandsaway
frommovingparts;keep
allguardsinplace.

5

125–4922

00

00

125–4925

1.Cutting/dismembermenthazardofhand,circular
blade—stoptheblade;keephandsawayfrommoving
parts;keepallguardsinplace.

1.Warning—readthe
Operator’sManual.

2.Warning—keephands
awayfrommovingparts;
keepallguardsinplace.

3.Warning—weareye,head,
hearing,andrespiratory
protection.

4.Raiseblade

5.Lowerblade

125–4920

1.Engine—run

2.Engine—stop9.Warning—weareye,head,hearing,andrespiratoryprotection.

3.Adjustcuttingheight

4.ReadtheOperator’sManual—1)Starttheengine;2)Setthe
bladeheightto0inches;3)Setthebladespeedtofast;

4)Whenloweringthebladeforcutting,setthespeedtoslow.

5.Lowertheblade12.Fast

6.Raisetheblade13.Variablespeed

7.Warning—readtheOperator’sManual.14.Slow

8.Explosionhazard,fueling—stoptheengineandkeepames
awaywhenfueling.

10.Warning—keepawayfrommovingparts;keepallguardsin
place;waitformovingpartstostop.

11.Warning—keepbystandersawayfromthemachine.

6

ProductOverview

G019190

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G019187

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Figure3

Overview(Model68045)

1.Airltercover

2.Fueltankcap

3.Engineswitch10.Beltguard

4.Oilllercap/dipstick

5.Oildrainbolt

6.Belttensionbolt

7.Forwardpointer

8.Bladeguard

9.Sawblade

11.Handlebar

12.Elevationcrank

13.Operatorpanel

Figure4

Overview(Model68046)

1.Operatorpanel

2.Throttlelever12.Pointerwheel

3.Airltercover13.Oildrainbolt

4.Chokelever14.Oilllercap/dipstick

5.Fuelvalvelever

6.Sedimentcup

7.Recoilstarthandle17.Fueltankcap

8.Sawblade18.Liftingbale

9.Bladeguard

10.Pointerfork

11.Forwardpointer

15.Engineswitch(engine
location)

16.Beltguard

19.Engineswitch(operator
panellocation)

20.Handlebar

7

Controls

1

2

3

4

G019199

STOP

G019198

12

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5

6

7

G019202

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G020236

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Becomefamiliarwithallthecontrols(Figure5,Figure6,and
Figure7)beforeyoustarttheengineandoperatethemachine.

OperatorPanel(Model68045)

EngineControls

Figure5

OperatorPanel(Model68045)

1.Indexhole3.Waterconnector

2.Watervalvehandle4.Elevationcrank

OperatorPanel(Model68046)

Figure6

OperatorPanel(Model68046)

Figure7

EngineControls(Models68045and68046)

1.Chokelever

2.Fuelvalvelever5.Recoilstarthandle

3.Sedimentcup

4.Throttlelever

6.Engineswitch

FuelValve

Thefuelvalve(Figure8)islocatedunderneaththechoke
lever.TheleverforthefuelvalvemustbemovedtotheOn
positionbeforeattemptingtostarttheengine.Onceyouhave
nishedusingthemachineandyouhaveturnedtheengine
off,movetheleverforthefuelvalvetotheOffposition.

1.Bladedepthgauge5.Watervalvehandle

2.Engineswitch6.Waterconnector

3.Bladeelevationcrank7.Throttle

4.Indexhole

Figure8

EngineControls

1.Fuelvalve3.Throttlelever

2.Chokelever

8

ChokeLever

G019203

1

OFF

ON

g018808

1

STOP

G019204

1 2

3

Thechokelever(Figure8)isrequiredwhenstartingacold
engine.Beforepullingontherecoilstarterhandle,move
thechokelevertotheclosedposition.Oncetheengineis
running,movethechokelevertotheopenposition.Do
notusethechokeiftheengineisalreadywarmeduporthe
airtemperatureishigh.

ThrottleLever(Model68045)

Thethrottlelever(Figure8)controlsthespeed(RPM)of
theengine.Itislocatednexttothechokelever.Itsetsthe
engineRPMandthereforecanincreaseanddecreasethe
rotationspeedofthesawblade.Forbestperformanceitis
recommendedyousetthiscontroltothefastposition.

ThrottleControl(Model68046)

Important:Model68046only—donotusethethrottle

leverontheengine.Damagetothethrottlelinkagemay
occurtotheoperatorpanelthrottlecontrol.

Thethrottlecontrolislocatedontheoperatorpanel
(Figure9),andcontrolsthespeed(RPM)oftheengine.It
setstheengineRPMandthereforecanincreaseanddecrease
therotationspeedofthesawblade.Forbestperformanceit
isrecommendedyousetthiscontroltothefastposition.

Figure10

1.EngineOn/Offswitch

EngineSwitch(Model68046)

Theengineswitchislocatedontheoperatorpanel(Figure11).
Usetheengineswitchtostoptheengineduringroutine
machineoperationandwhenshuttingthemachineOffin
anemergencysituation.

Figure9

EngineOn/OffSwitch

TheOn/Offswitch(Figure10)allowstheoperatorofthe
machinetostartandstoptheengine.Thisswitchislocated
onthefrontoftheengine.Itismarkedl(ON)andO(OFF).
Tostartthemachine,youmustrstmovethiscontroltothe
Onposition.Whenyouwanttostoptheengine,movethis
switchtotheOffposition.

Figure11

EngineSwitchandBladeDepthGauge(Model68046)

1.Runengine3.Bladedepthgauge

2.Stopengine

RecoilStarter

Tostarttheengine,pullontherecoilstarthandle(Figure7)
quicklytoturntheengineover.Thecontrolsontheengine

9

describedabovemustallbesetcorrectlyfortheengineto
start.

OilAlertSystem

TheOilAlertsystemisdesignedtopreventenginedamage
causedbyaninsufcientamountofoilinthecrankcase.
Beforetheoillevelinthecrankcasecanfallbelowasafelimit,
theOilAlertsystemwillautomaticallystoptheengine(the
engineswitchwillremainintheONposition).Iftheengine
stopsandwillnotrestart,checktheengineoillevelbefore
troubleshootinginotherareas.

BladeDepthGauge(Model68046)

Thebladedepthgauge(Figure11)isusedtoindicatethesaw
bladeelevationabovethejobsitesurfaceandblade-cutdepth
intothejob-sitesurface.

Specications

Note:Specicationsanddesignaresubjecttochange

withoutnotice.

Model68045Model68046

Length

Width

Height

Weight

ArborSpeed
(Max.)

ArborDiameter

BladeDiameter
/CuttingDepth
(Max)

92.7cm(36.5inch)†120.1cm(47.3inch)

67.5cm(26.6inch)67.6cm(26.6inch)

87.4cm(34.4inch)93.3cm(36.75inch)

80Kg(175lb)141Kg(310lb)

55.3Hz(3200RPM)55.3Hz(3200RPM)

25.4mm(1inch)25.4mm(1inch)

356mm(14inch)
blade/1 17mm(4.63
inch)depth

†

‡

356mm(14inch)
blade/117mm
(4.63inch)depth
406mm(16inch)
blade/143mm
(5.63inch)depth
457mm(18inch)
blade/168mm
(6.63inch)depth

†Pointerintheupposition.
‡Handlesinthemidposition.

Attachments/Accessories

AselectionofToroapprovedattachmentsandaccessoriesare
availableforusewiththemachinetoenhanceandexpand
itscapabilities.ContactyourAuthorizedServiceDealeror
Distributororgotowww .T oro.comforalistofallapproved
attachmentsandaccessories.

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Operation

G019225

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Important:Beforeoperating,checkthefuelandoil
level,andremovedebrisfromthemachine.Also,ensure
thattheareaisclearofpeopleanddebris.Y oushould
alsoknowandhavemarkedthelocationsofallutility
lines.

Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.

Model68045:Useforsurfacesawingasphaltandconcrete
ofsmallerjobssuchasoorandpavementrepair,expansion
jointcutting,conduitchannelcutting,andotheratwork.

Model68046:Useforsurfacesawingasphaltandconcreteof
jobsthatrequireprecisioncuttingincludingoors,walkways,
ramps,andotheratsurfaces.

BeforeyouStart

DANGER

Identifyandmarkthelocationandrouteofwater,
gas,andelectricallines.Lossoflifeordamageto
propertymayoccuriftheseutilitiesarecut.

AdjustingtheHandleBar (Model68046)

RaisingandLoweringtheHandleBar

1.Locatetheboltsthatsecurethehandlebarstotheback
oftheconsole(Figure12).

Figure12

HandleBarAdjustment(Model68046)

•Usethecorrectbladeforthematerialbeingcut.

•Ensurethatthearbor,collars,andarbornutare

undamaged.

•Installthebladewithbotharborwrenches.

•Whenwetcutting,ensurethatthewaterjetsproduce

adequatewaterow .

•Alignthepointer(s)withthesawblade.

•Removeallequipmentandloosedebrisfromthejobsite

cuttingpath.Removelooseconcrete,asphalt,orboth
fromthecuttingpath.

•Reviewallthemachine’ ssafetydecals.

•Wearahard-hat,respiratorordustmask,hearing

protection,andeyeprotectionwhenoperatingthe
machine.

•Ensurethatyouarefamiliarwithsafetyregulationsand

shutdownproceduresdescribedintheOperator’sManual.

•Ensurethatallguardsareinplaceandingoodcondition.

•Ensurethatthebladeishasnodamageorunusualwear,

andissecuretothearbor.

•Ensurethateveryone,includingchildrenandanimals,

maintainadistanceofatleast50feet(15m)fromthe
machine.Debriscanbethrownoutandinjurepeople
andanimals.

1.Highposition5.Lockwasher

2.Middleposition6.Flatwasher

3.Lowposition7.Bolt

4.Nut

2.Removethebolts,nuts,andwashersthatsecurethe
handlebartotheconsole(Figure12).

3.Raiseorlowerthehandlebar(Figure12).

4.Aligntheholesinthehandlebarwiththemounting
holesintheconsole.

5.Securethehandlebartotheconsolewiththebolts,
nuts,andwashersremovedinstep2(Figure12).

8.Console

RemovingandInstallingthe SawBlade

Important:Beforeremovingorinstallingthesawblade,

removethesparkplugwirefromthesparkplug.

Note:Ensurethatthefollowingconditionsaremetwhen
installingthesawblade:

•Ensurethatthebladeisratedfor3200RPMorgreater

beforeinstallingitonthemachine.

•Checkthecoolingrequirementsforthebladeandcutting

operation.

Alwaysusewaterwithawet-cuttingdiamondblade.A
dry-cuttingbladecanbeusedwithorwithoutwater.

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•Ensurethatthebladespecicationandsizematchesthe

G019281

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cuttingapplication.Checkwiththeblademanufacturer
fortheproperapplication.

•Ensurethatthebladeisnotdamagedwithanyofthe

followingconditions:

–Worncore

–Crackedcore

–Missingsegments

–Wornarborhole

–Worndrive-pinhole

RemovingtheBlade

1.RaisethesawbladetotheStartElevation;referto
stepCinChangingCutDepth(page14).

2.Parkthemachineonalevelsurfaceandturnoffthe
engine;refertoStoppingtheEngine(page19).

3.Ensurethatthemachinesurfacesarecool.

4.Disconnectthesparkplug(

Figure13).

Figure14

ArborWrenchStorage

1.Wrenches

2.Storagebracket

6.Rotatetheforwardsectionofthebladeguardopen
(Figure15).

Figure15

BladeGuard

1.Forwardbladeguardsection

Figure13

DisablingtheEngine

1.Sparkplugwire

7.Placeonewrenchontheatsoftheinnercollarand
placetheotherwrenchonthearbornut.Removethe
arbornutbyrotatingitcounterclockwise(Figure16).

5.Removethe2wrenchesfromthestoragebracketatthe
back-leftsideoftheoperatorpanel(Figure14).

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G019215

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B.Ensurethatthemachinesurfacesarecool.

C.Disconnectthesparkplug(

Figure13).

D.Removethe2arborwrenchesfromthestorage

bracketattheback-leftsideoftheoperatorpanel;
refertoRemovingtheBlade(page12).

E.Opentheforwardsectionofthebladeguard;

referto

RemovingtheBlade(page12).

F.Inspecttheoutercollar,innercollar,drivepin,

andarborfordamage.Cleanthecollarclamping
surfaces,drivepin,andarborwithacleanrag.

G.Inspecttheinnercollarandensurethatitis

mountedtightonthearbor.

H.Removeanyburrsonthearbor,collarclamping

surfacesandsawbladeclampingsurfaces.

I.Inspectthebladeguardandthewatertubesinside

thebladeguardfordamage.

2.Installthebladeasfollows:

A.Ensurethattherotationarrowonthesawblade

pointsinthesamedirectionastherotationarrow
ontheouterbladeguardside.

Note:Ensurethatthebladeelevationisraised
adequatelytoinstalltheblade.

Figure16

BladeandArbor

1.Sawblade

2.Outercollar

3.Arbornut7.Arborrotationarrow

4.Arbor

5.Wrench

6.Innercollar

arborandmovethebladetowardtheinnercollar

Figure17).

(

B.Alignthearborholeinthesawbladetothe

8.Removethelockwasher,outercollar,andsawblade.
RefertoInstallingtheBlade(page13)

InstallingtheBlade

DANGER

Donotrunthemachinewithlooseormissingarbor
parts.

Important:Alwaysusethepropersizebladeguardand
splashguard.

BladeGuardSize

35.56cm(14in)StandardOptional

40.64cm(16in)Optional

Model68045Model68046

45.72cm(18in)Standard

1.Dothefollowingbeforeinstallingthesawblade:

A.Parkthemachineonalevelsurfaceandturnoff

theengine;refertoStoppingtheEngine(page19).

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G019217

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2

3

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5

6

4

8

9

10

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H.Placeonearborwrenchontheatsoftheinner

G019221

1

2

3

collarandplacetheotherwrenchonthearbor
nut.Tightenthearbornutbyrotatingitclockwise.

3.Lowerthefrontbladeguardsection,stowthearbor
wrenchedinstoragebracket,andconnectthespark
plug.

4.Starttheengineandallowthemachineto
runatfullthrottlefor30seconds;referto
StartingtheEngine(page19).

5.Stoptheengine.

AdjustingtheCuttingDepth

Important:Forcutdepthlimits,refertothemachine

Specications(page10).

Note:Rotatetheelevationcrankclockwisetoraisetheblade;
rotatetheelevationcrankcounterclockwisetolowertheblade.

ChangingCutDepth

Figure17

BladeInstallation

1.Outercollar7.Rotationarrow(sawblade)

2.Lockwasher8.Innercollar

3.Arbornut9.Drivepin

4.Drive-pinhole10.Arbor

5.Sawblade11.Rotationarrow(blade
guard)

6.Arborhole

C.Alignthedrive-pinholeinthebladetothedrive

pinthatisprotrudingfromtheinnercollar.Seat
thebladeagainsttheinnercollar(Figure17).

Important:Ensurethatthesawbladehasa
sliptwiththearboranddrivepin.Ifthere
isexcessivemovementbetweentheblade
andthearborandpin,replacethewornparts
beforeoperatingthemachine.

Note:Checkthatthewatertubesinsidetheblade
guardareclearoftheblade.

Important:Eachrevolutionofthebladeelevationcrank
raisesorlowersthebladeapproximately11mm(7/16
inch).

1.AdjustthesawbladetotheStartElevationbydoing
thefollowing:

A.Alignthemachinetothecuttingpathofthe

job-sitesurface.

B.Usingthebladeelevationcrank(Figure18),rotate

thecrankcounterclockwisetolowertheblade
untiltheittouchesthejob-sitesurface.

Note:Thebladeisatthe+0mm(+0inch)
elevation.

D.Aligntheoutercollartothearborandmoveit

towardtheblade(

Figure17).

E.Alignthedrive-pinholeintheoutercollarwiththe

drivepinprotrudingthroughthesawblade,and
thenseatthecollaragainsttheblade(Figure17).

F.Rotatetheoutercollarandsawbladeinthe

oppositedirectionoftherotationarrowonthe
bladeguardtoremoveanyresidualdrivepin

1.Indexpin3.Elevationcrank

2.Index-pinhole

Figure18

Elevationcrank

backlash

G.Installthelockwasherandarbornut(

Figure17).

C.Rotatetheelevationcrank1revolutionclockwise

toraisethebladeelevation(Figure18).The
machineisattheStartElevation.

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