Toro 22972, 22972G, 22973, 22973G, 22974 Operator's Manual

FormNo.3422-267RevA
TRX-16,TRX-20,andTRX-26 Trencher
ModelNo.22972—SerialNo.402461470andUp ModelNo.22972G—SerialNo.402000000andUp ModelNo.22973—SerialNo.402501800andUp ModelNo.22973G—SerialNo.402000000andUp ModelNo.22974—SerialNo.402000000andUp
Registeratwww.T oro.com. OriginalInstructions(EN)
*3422-267*A
ThisproductcomplieswithallrelevantEuropean directives;fordetails,pleaseseetheseparateproduct specicDeclarationofConformity(DOC)sheet.
WARNING
CALIFORNIA
Proposition65Warning
Thisproductcontainsachemical
orchemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orreproductiveharm.
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
DANGER
Theremaybeburiedutilitylinesinthework area.Diggingintothemmaycauseashock oranexplosion.
Introduction
Thismachineisdesignedtodigtrenchesinsoilto burycablingandpipingforvariousapplications.Itis notintendedtocutrock,wood,oranyothermaterial otherthansoil.
Readthisinformationcarefullytolearnhowtooperate andmaintainyourproductproperlyandtoavoid injuryandproductdamage.Youareresponsiblefor operatingtheproductproperlyandsafely .
YoumaycontactTorodirectlyatwww.Toro.com forproductsafetyandoperationtrainingmaterials, accessoryinformation,helpndingadealer,orto registeryourproduct.
Wheneveryouneedservice,genuineToroparts,or additionalinformation,contactanAuthorizedService DealerorToroCustomerServiceandhavethemodel andserialnumbersofyourproductready.Figure
1illustratesthelocationofthemodelandserial
numbersontheproduct.Writethenumbersinthe spaceprovided.
Havethepropertyorworkareamarkedfor buriedlinesanddonotdiginmarkedareas. Contactyourlocalmarkingserviceorutility companytohavethepropertymarked(for example,intheUnitedStates,call811forthe nationwidemarkingservice).
ItisaviolationofCaliforniaPublicResourceCode Section4442or4443touseoroperatetheengineon anyforest-covered,brush-covered,orgrass-covered landunlesstheengineisequippedwithaspark arrester,asdenedinSection4442,maintainedin effectiveworkingorderortheengineisconstructed, equipped,andmaintainedforthepreventionofre.
Theenclosedengineowner'smanualissupplied forinformationregardingtheUSEnvironmental ProtectionAgency(EPA)andtheCaliforniaEmission ControlRegulationofemissionsystems,maintenance, andwarranty.Replacementsmaybeorderedthrough theenginemanufacturer.
Important:Withyourmobiledevice,youcan
scantheQRcodeontheserialnumberdecal (ifequipped)orvisitwww.Toro.comtoaccess warranty,parts,andotherproductinformation.
g007797
Figure1
1.Modelandserialnumberplate
ModelNo.
©2018—TheToro®Company 8111LyndaleAvenueSouth Bloomington,MN55420
SerialNo.
Thismanualidentiespotentialhazardsandhas safetymessagesidentiedbythesafety-alertsymbol (Figure2),whichsignalsahazardthatmaycause seriousinjuryordeathifyoudonotfollowthe recommendedprecautions.
Contactusatwww.Toro.com.
2
PrintedintheUSA
AllRightsReserved
Figure2
1.Safety-alertsymbol
Thismanualuses2wordstohighlightinformation. Importantcallsattentiontospecialmechanical informationandNoteemphasizesgeneralinformation worthyofspecialattention.
Contents
Safety.......................................................................4
SafeOperatingPractices....................................4
SafetyandInstructionalDecals..........................6
Setup.......................................................................11
1InstallingtheBoomandChain.........................11
2CheckingtheFluidLevels..............................12
3ChargingtheBattery(Electric-StartModels
Only).............................................................12
ProductOverview...................................................12
Controls...........................................................12
KeySwitch....................................................13
Specications..................................................15
Attachments/Accessories.................................15
Operation................................................................16
AddingFuel......................................................16
PerformingDailyMaintenance..........................17
StartingtheEngine...........................................17
DrivingtheMachine..........................................18
ShuttingofftheEngine......................................18
DiggingaTrench..............................................18
MovingaNon-FunctioningMachine..................19
SecuringtheMachineforTransport..................19
LiftingtheMachine...........................................19
OperatingTips.................................................20
Maintenance...........................................................21
RecommendedMaintenanceSchedule(s)...........21
Pre-MaintenanceProcedures..............................22
RemovingtheCoverPlate................................22
RemovingtheBottomShield............................23
Lubrication..........................................................23
GreasingtheMachine.......................................23
GreasingtheTrencherHousing........................24
EngineMaintenance...........................................25
ServicingtheAirCleaner..................................25
ServicingtheEngineOil....................................27
ServicingtheSparkPlug...................................29
FuelSystemMaintenance...................................30
DrainingtheFuelT ank......................................30
ReplacingtheFuelFilter...................................31
ElectricalSystemMaintenance...........................31
ServicingtheBattery.........................................31
ReplacingtheFuses(Models22973and
22974)...........................................................34
g000502
DriveSystemMaintenance..................................34
ServicingtheTracks.........................................34
BeltMaintenance................................................37
ReplacingthePump-DriveBelt.........................37
ControlsSystemMaintenance.............................37
AdjustingtheTraction-Control
Alignment......................................................37
HydraulicSystemMaintenance...........................39
HydraulicFluidSpecications...........................39
CheckingtheHydraulic-FluidLevel...................40
ReplacingtheHydraulicFilter...........................40
ChangingtheHydraulicFluid............................41
TrencherMaintenance.........................................42
ReplacingtheDiggingT eeth.............................42
CheckingandAdjustingtheDiggingChain
andBoom.....................................................42
ReplacingtheDriveSprocket...........................43
Cleaning..............................................................44
RemovingDebrisfromtheMachine..................44
Storage...................................................................44
Troubleshooting......................................................46
Schematics.............................................................48
3
Safety
Improperuseormaintenancebytheoperatoror ownercanresultininjury.T oreducethepotential forinjury,complywiththesesafetyinstructions andalwayspayattentiontothesafety-alert symbol(Figure2),whichmeansCaution,Warning, orDanger—personalsafetyinstruction.Failureto complywiththeinstructionmayresultinpersonal injuryordeath.

SafeOperatingPractices

Thisproductiscapableofamputatinghandsandfeet. Alwaysfollowallsafetyinstructionstoavoidserious injuryordeath.
WARNING
Engineexhaustcontainscarbonmonoxide, anodorlesspoisonthatisfatalifinhaled.
Donotruntheengineindoorsorinan enclosedarea.

Training

ReadtheOperator'sManualandothertraining
material.Iftheoperator(s)ormechanic(s)cannot readEnglish,itistheowner'sresponsibilityto explainthismaterialtothem.
Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
Alloperatorsandmechanicsshouldbetrained.
Theownerisresponsiblefortrainingtheusers.
Neverletchildrenoruntrainedpeopleoperateor
servicetheequipment.Localregulationsmay restricttheageoftheoperator.
Theowner/usercanpreventandisresponsible
foraccidentsorinjuriesoccurringtohimselfor herself,otherpeopleorproperty.

Preparation

Beforeusingthemachine,havetheareamarked
forundergroundutilitiesanddonotusethe machineinmarkedareas.
Evaluatetheterraintodeterminewhataccessories
andattachmentsyouneedtoproperlyand safelyperformthejob.Useonlytheaccessories andattachmentsthatareapprovedbythe manufacturer.
Wearappropriateclothingincludinggloves,eye
protection,longpants,substantialslip-resistant footwear,andhearingprotection.Tiebacklong hairanddonotwearlooseclothingorloose jewelry.
Inspecttheareawhereyouwillusetheequipment
andremoveallobjects,suchasrocks,toys,and wire,thatthemachinecouldthrow.
Checkthattheoperator'spresencecontrols,safety
switches,andshieldsareattachedandfunctioning properly.Donotoperatethemachineunlessthey arefunctioningproperly.

FuelSafety

Useextracarewhenhandlingfuel.Itisammable
anditsvaporsareexplosive.
Extinguishallcigarettes,cigars,pipes,andother
sourcesofignition.
Useonlyanapprovedfuelcontainer.
Donotremovethefuelcaporllthefueltank
whiletheengineisrunningorhot.
Donotaddordrainfuelinanenclosedspace.
Donotstorethemachineorfuelcontainerwhere
thereisanopename,spark,orpilotlight,such asonawaterheaterorotherappliance.
Ifyouspillfuel,donotattempttostarttheengine;
avoidcreatinganysourceofignitionuntilthefuel vaporshavedissipated.

Operation

Useyourfullattentionwhileoperatingthe
machine.Donotengageinanyactivitythat causesdistractions;otherwise,injuryorproperty damagemayoccur.
Neverrunanengineinanenclosedarea.
Operatethemachineonlyingoodlight,keeping
awayfromholesandhiddenhazards.
Ensurethatallthedrivesareinneutralandthe
parkingbrakeisengaged(ifapplicable)before startingtheengine.Starttheengineonlyfromthe operator'sposition.
Slowdownanduseextracareonhillsides.
Ensuretotravelintherecommendeddirectionon hillsides.Turfconditionscanaffectthestabilityof themachine.
Slowdownandusecautionwhenmakingturns,
crossingroadsandsidewalks,andwhenchanging directionsonslopes.
Neveroperatethemachinewithouttheguards
securelyinplace.Ensurethatalltheinterlocksare attached,adjusted,andfunctioningproperly .
Donotchangetheengine-governorsettingor
overspeedtheengine.
Parkthemachineonalevelsurface,lowerthe
hydrauliclift,disengagethehydraulics,engagethe parkingbrake(ifapplicable),shutofftheengine,
4
andremovethekeybeforeleavingtheoperator's positionforanyreason.
Keepyourhandsandfeetawayfrommovingparts.
Lookbehindanddownbeforebackingupto
ensurethatthepathisclear.
Nevercarrypassengersandkeeppetsand
bystandersaway.
Donotoperatethemachinewhenyouaretired,ill,
orundertheinuenceofalcoholordrugs.
Usecarewhenloadingorunloadingthemachine
intoatrailerortruck.
Usecarewhenapproachingblindcorners.
Ensurethattheareaisclearofpeoplebefore
operatingthemachine.Stopthemachineif anyoneentersthearea.
Neverjerkthecontrols;useasteadymotion.
Donottouchpartsthatmaybehotfromoperation.
Allowthemtocoolbeforeattemptingtomaintain, adjust,orservicethemachine.
Operatethemachineinareaswherethereare
noobstaclesincloseproximitytoyou.Failureto maintainadequatedistancefromtrees,walls,and otherbarriersmayresultininjuryasthemachine backsupduringoperationifyouarenotattentive tothesurroundings.Operatethemachineonlyin areaswherethereissufcientclearanceforyou tosafelymaneuver.
Locatethepinchpointareasmarkedonthe
machineandkeepyourhandsandfeetawayfrom theseareas.
Lightningcancausesevereinjuryordeath.If
lightningisseenorthunderisheardinthearea,do notoperatethemachine;seekshelter.

SlopeOperation

Slopesareamajorfactorrelatedtoloss-of-control
andtip-overaccidents,whichcanresultinsevere injuryordeath.Theoperatorisresponsiblefor safeslopeoperation.operatingthemachineon anysloperequiresextracaution.Beforeusingthe machineonaslope,youmust:
–Reviewandunderstandtheslopeinstructions
inthemanualandonthemachine.
–Evaluatethesiteconditionsofthedayto
determineiftheslopeissafeformachine operation.Alwaysusecommonsense andgoodjudgmentwhenperformingthis evaluation.Changesintheterrain,suchas moisture,canquicklyaffecttheoperationof themachineonaslope.
Operateupanddownslopeswiththefrontof
themachineuphill.
Identifyhazardsatthebaseoftheslope.Do
notoperatethemachineneardrop-offs,ditches,
embankments,waterorotherhazards.The machinecouldsuddenlyrolloverifawheelortrack goesovertheedgeortheedgecollapses.Keep asafedistance(twicethewidthofthemachine) betweenthemachineandanyhazard.
Avoidstarting,stopping,orturningthemachineon
aslope.Avoidmakingsuddenchangesinspeed ordirection;turnslowlyandgradually.
Keepallmovementsonslopesslowandgradual.
Donotmakesuddenchangesinspeedor direction.
Donotoperatethemachineunderanyconditions
wheretraction,steering,orstabilityisinquestion. Beawarethatoperatingthemachineonwetgrass, acrossslopesordownhillmaycausethemachine tolosetraction.Lossoftractiontothewheelsor tracksmayresultinslidingandalossofbraking andsteering.Themachinecanslideevenifthe wheelsortracksarestopped.
Identifyhazardsatthebaseoftheslope.Do
notoperatethemachineneardrop-offs,ditches, embankments,waterorotherhazards.The machinecouldsuddenlyrolloverifawheelortrack goesovertheedgeortheedgecollapses.Keep asafedistance(twicethewidthofthemachine) betweenthemachineandanyhazard.
Removeormarkobstaclessuchasditches,holes,
ruts,bumps,rocksorotherhiddenhazards.T all grasscanhideobstacles.Uneventerraincould overturnthemachine.
Donotparkthemachineonahillsideorslope
withoutloweringthehydrauliclifttotheground.

MaintenanceandStorage

Parkthemachineonalevelsurface,lowerthe
hydrauliclift,disengagethehydraulics,engagethe parkingbrake(ifapplicable),shutofftheengine, andremovethekey.Waitforallmovingpartsto stopbeforeadjusting,cleaning,orrepairingthe machine.
Cleandebrisfromthehydrauliclift,drives,
mufers,andenginetohelppreventres.Wipe upanyspilledoilorfuel.
Allowtheenginetocoolbeforestoringanddonot
storethemachinenearames.
Neverallowuntrainedpersonneltoservicethe
machine.
Usejackstandstosupportthecomponentswhen
required.
Carefullyreleasepressurefromcomponentswith
storedenergy.
Keepyourhandsandfeetawayfromthemoving
parts.Ifpossible,donotmakeadjustmentswith theenginerunning.
5
Disconnectthebatteryorremovethespark-plug
wiresbeforemakinganyrepairs.Disconnect thenegativeterminalrstandthepositivelast; connectthepositiverstandthenegativelast.
Chargethebatteryinanopen,well-ventilated
area,awayfromsparkandames.Unplugthe chargerbeforeconnectingordisconnectingitfrom thebattery.Wearprotectiveclothinganduse insulatedtools.
Batteryacidispoisonousandcancauseburns.
Avoidcontactwithskin,eyes,andclothing.Protect yourface,eyes,andclothingwhenworkingwitha battery.
Batterygassescanexplode.Keepcigarettes,
sparks,andamesawayfromthebattery.
Keepallpartsingoodworkingconditionandall
hardwaretightened.Replaceallwornordamaged decals.
SafetyandInstructionalDecals
Keepallnutsandboltstight.Keeptheequipment
ingoodcondition.
Nevertamperwiththesafetydevices.
Keepthemachinefreeofdebrisbuildup.Wipeup
anyspilledoilorfuel.Allowthemachinetocool beforestoring.
Shutofftheengine,removethekey ,andinspect
themachineifyoustrikeanobject.Makeany necessaryrepairsbeforestarting.
UseonlygenuineTororeplacementparts.
Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthigh-pressurehydraulic uid.Usecardboardorpapertondhydraulic leaks;neveruseyourhands.Hydraulicuid escapingunderpressurecanpenetrateskinand causeinjuryrequiringsurgerywithinafewhours byaqualiedsurgeon;otherwise,gangrenemay result.
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyarea ofpotentialdanger.Replaceanydecalthatisdamagedormissing.
BatterySymbols
Someorallofthesesymbolsareonyourbattery .
1.Explosionhazard
2.Nore,opename,or smoking
3.Causticliquid/chemical burnhazard
4.Weareyeprotection.9.Flusheyesimmediately
5.ReadtheOperator's
Manual.
6.Keepbystandersasafe distancefromthebattery.
7.Weareyeprotection; explosivegasescan causeblindnessandother injuries.
8.Batteryacidcancause blindnessorsevereburns.
withwaterandgetmedical helpfast.
10.Containslead;donot discard
decal93-6686
93-6686
1.Hydraulicuid
decalbatterysymbols
2.ReadtheOperator'sManual.
decal93-7814
93-7814
1.Entanglementhazard,belt—stayawayfrommovingparts; keepallguardsandshieldsinplace.
6
93-9084
1.Liftpoint/Tie-downpoint
100-4650
1.Crushinghazardofhand—keepbystandersasafedistance awayfromthemachine.
2.Crushinghazardoffoot—keepbystandersasafedistance awayfromthemachine.
decal93-9084
decal137-3873
137-3873
1.ReadtheOperator’sManual.
decal100-4650
1.Parkingbrake
decal107-8495
107-8495
decal137-3874
137-3874
1.ReadtheOperator’sManual.
decal133-5619
133-5619
7
115-4020
1.Turnright3.Reverse
2.Forward
4.Turnleft
99-9952
1.Cuttinghazard,chainandauger—stayawayfrommovingpartsandkeepbystandersawayfromthemachine.
2.Warning—shutofftheengineandremovethekeybeforepreformingandmaintenanceorrepairs.
3.Explosionand/orelectricshockhazard—donotdiginareaswithburiedgasorpowerlines.
decal115-4020
decal99-9952
8
115-1230
1.Warning—donotoperatethismachineunlessyouaretrained.
2.Engine—stop
3.Engine—run
4.Trencherchain—reverse
5.Trencherchain—forward
6.Trencherchain—off
7.Enginethrottle
8.Fast
9.Slow
10.Choke
11.On/Closed
12.Off/Open
13.ReadtheOperator'sManualbeforestartingtheengine;tostarttheengine,movethetrencher-controlleverintotheOFFposition, placethetractioncontrolintheNEUTRALposition,movethethrottlelevertotheFASTposition,engagethechoke,turnthekeyto theRUNposition,anddisengagetheparkingbrakeoncetheenginehasstarted.
14.ReadtheOperator'sManualbeforeoperatingthetrencher;tooperatethetrencher,lowertheboom,movethetrencher-control levertothereferencebar,pullthetractioncontrolrearwardtomoveinreverseanddigthetrench.
decal115-1230
9
decal115-1231
115-1231
1.Cutting/dismembermenthazardofbystanders, trencher—keepbystandersasafedistanceawayfromthe machine;donotoperatethetrencherchainwhiletransporting themachine.
2.Explosionhazard,fueling—shutofftheengineandextinguish allameswhenfueling.
3.Tipping/crushinghazard—lowertheboomwhenoperating onslopes.
4.Warning—stayawayfrommovingparts;waitforallmoving partstostop
5.Warning—lowertheboom,engagetheparkingbrake,shutoff theengine,andremovethekeybeforeleavingthemachine.
6.Explosionhazard;shockhazard—donotusemachinenear buriedutilitylines;contacttheproperagenciesbeforedigging.
7.Boomelevation
8.Lowertheboom
9.Raisetheboom
10
Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescription
Boom(soldseparately)
1 2
3
Chain(soldseparately)
Nopartsrequired
Nopartsrequired
1

InstallingtheBoomand Chain

Partsneededforthisprocedure:
1
Boom(soldseparately)
1
Chain(soldseparately)
Procedure
Important:Thereareseveralboomandchainsize
congurationsavailable.RefertoyourAuthorized ServiceDealertoobtaintheappropriateboomand chaintomeetyourrequirements.
1.Parkthemachineonalevelsurfaceandengage theparkingbrake.
2.Shutofftheengineandremovethekey.
3.Removethebolt,2saddlewashers,andnut securingthespoilsaugerandremovetheauger (Figure3).
Note:Savethefastenersforfutureuse.
Qty.
1 1
1.Spoilsauger
2.Boom7.Jamnut
3.Bolts8.Armonthedrivehead
4.Doublewasher9.Drivesprocket
5.Nuts
4.Removethe2bolts,nuts,anddoublewashers fromthesidesoftheboom(Figure3).
5.Loosentheadjustingboltandjamnut(Figure3).
6.Slidetheboomoverthearmonthedrivehead.
7.Installthe2bolts,nuts,anddoublewashers removedinstep4throughtheboomandarm, butdonottightenthem.
Installtheboomandchain.
Checktheuidlevels.
Chargethebattery(electric-startmodels only).
Figure3
Use
6.Adjustingbolt
g011470
8.Ifthechainisnotconnected,connectthelinks bypressingorhammeringtheclevispinsupplied withthechainthroughthelinks.
Important:Toavoidbendingthechainlinks,
placeblocksunderandbetweenthelinks whenhammeringtheclevispinthrough.
9.Securetheclevispinwiththecotterpinsupplied withthechain.
11
10.Loopthediggingchainovertheaugerdriveshaft andontothedrivesprocket,ensuringthatthe diggingteethpointforwardontheupperspan.
11.Settheupperspanofthechainintoplaceon thetrencherboom,thenwrapthechainaround therollerattheendoftheboom.
12.Threadtheadjustmentboltintotheboomand turnitinuntilthereis3.8to6.3cm(1-1/2to2-1/2 inches)ofslackinthechainonthebottomspan.
13.Threadthejamnutdowntheadjustingboltand tightenitsecurelyagainsttheboom.
ProductOverview
14.T orquethe2boltsandnutssecuringtheboom to183to223N·m(135to165ft-lb).
15.Installthespoilsaugerusingthebolt,2saddle washer,andnutthatyouremovedpreviously.
16.T orquetheboltandnutto101N·m(75ft-lb).
2

CheckingtheFluidLevels

NoPartsRequired
Procedure
Beforestartingtheengineforthersttime,check theengine-oilandhydraulic-uidlevels.Refertothe followingsectionsformoreinformation:
CheckingtheEngine-OilLevel(page27)
Figure4
1.Control panel
2.Engine
3.Spoils auger
4.Chain guard
5.Chain
6.Digging teeth
7.Boom10.Reverse
8.Trencher head
9.Track
Controls
Becomefamiliarwithallthecontrols(Figure5)before youstarttheengineandoperatethemachine.
ControlPanel
g015375
safety plate
CheckingtheHydraulic-FluidLevel(page40)
3

ChargingtheBattery (Electric-StartModelsOnly)

NoPartsRequired
Procedure
Chargethebattery;refertoChargingtheBattery
(page32)formoreinformation.
Figure5
1.Tractioncontrol5.Throttlelever
2.Hydraulic-lift(boom elevation)lever
3.Trenchercontrollever7.Keyswitch
4.Referencebar
12
g007801
6.Chokelever
8.Hourmeter

KeySwitch

Recoil-StartMachines
Thekeyswitchhas2positions:OFFandRUN.Refer toStartingtheEngine(page17).
Electric-StartMachines
Thekeyswitchhas3positions:OFF,RUN,andSTART. RefertoStartingtheEngine(page17).
TractionControl
g008128
Figure6
ThrottleLever
Movethecontrolforwardtoincreasetheenginespeed andrearwardtodecreasetheenginespeed.
ChokeLever
Beforestartingacoldengine,movethechokelever forward.Aftertheenginestarts,regulatethechoke tokeeptheenginerunningsmoothly.Assoonas possible,movethechokeleverallthewayrearward.
Note:Awarmenginerequireslittleornochoking.
HourMeter
Whentheengineisoff,thehourmeterdisplaysthe numberofhoursofoperationthathavebeenlogged onthemachine.
ReferenceBar
Whendrivingthemachine,usethereferencebar asahandleandaleveragepointforcontrollingthe machine.Toensuresmooth,controlledoperation, donottakebothhandsoffthereferencebarwhile operatingthemachine.
1.Referencebar
2.Tractioncontrol
Tomoveforward,movethetractioncontrolforward
(Figure7).
g008129
Figure7
Tomoverearward,movethetractioncontrol
rearward(Figure8).
Important:Whenreversing,lookbehindyou
forobstructionsandkeepyourhandsonthe referencebar.
g008130
Figure8
13
Toturnright,rotatethetractioncontrolclockwise
(Figure9).
Figure9
g008131
Toturnleft,rotatethetractioncontrol
counterclockwise(Figure10).
Figure10
Tostopthemachine,releasethetractioncontrol
(Figure6).
Note:Thefartheryoumovethetractioncontrolin
anydirection,thefasterthemachinemovesinthat direction.
Hydraulic-Lift(BoomElevation) Lever
g007802
Figure11
1.Lowertheboom2.Raisetheboom
Boom-ElevationLock
Theboom-elevationlocksecurestheboom-elevation leversothatyoucannotpushitforward.Thishelps toensurethatnooneaccidentallylowerstheboom
g008132
duringmaintenance.Securetheboomwiththelock anytimeyouneedtostopthemachinewiththeboom raised.
Tosetthelock,liftuponitsoitclearstheholeinthe controlpanelandswingittotherightinfrontofthe boomelevationlever,pushingitdownintothelocked position(Figure12).
Tolowertheboom,slowlymovetheleverforward (Figure11).
Toraisetheboom,slowlymovetheleverrearward (Figure11).
g007803
Figure12
1.Boom-elevationlever2.Boom-elevationlock
14
TrencherControlLever
Specications
Todigwiththetrencher,rotatetheleverrearwardand pullitdowntothereferencebar(Figure13,number1).
Toreversethetrencherhead,rotatethelever rearward,thenmoveitleftintotheupperslot(Figure
13,number2).
Ifyoureleasethelever,itwillautomaticallyreturnto theneutralposition(Figure13,number3),stopping thechain.
Figure13
1.Forward3.Neutral
2.Reverse
Parking-BrakeLever
Toengagetheparkingbrake,pullthebrakelever
rearwardandup(Figure14).
Todisengagetheparkingbrake,pullthelever
rearwardandthendown(Figure14).
Note:Specicationsanddesignaresubjectto
changewithoutnotice.
Width
Lengthwith70cm(24 inch)boom
Lengthwith91.4cm(36 inch)boom
Lengthwith122cm(48 inch)boom(Model22974 only)
Height
Weight(Model22972)*499kg(1,100lb)
Weight(Model22973)*538kg(1,185lb)
Weight(Model22974)*578kg(1,208lb)
*A91.4cm(36inch)boomandchainaddsabout27kg(60lb)tothelisted
weight.
g007108

Attachments/Accessories

AselectionofToroapprovedattachmentsand accessoriesisavailableforusewiththemachine toenhanceandexpanditscapabilities.Contact yourAuthorizedServiceDealerorauthorizedT oro distributororgotowww.Toro.comforalistofall approvedattachmentsandaccessories.
Toensureoptimumperformanceandcontinuedsafety certicationofthemachine,useonlygenuineT oro replacementpartsandaccessories.Replacement partsandaccessoriesmadebyothermanufacturers couldbedangerous,andsuchusecouldvoidthe productwarranty.
86cm(33.8inches)
209.5cm(82.5inches)
235cm(92.6inches)
282.5cm(11 1.2inches)
117cm(46inches)
Figure14
1.Parking-brakelever(inthedisengagedposition)
g007804
15
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Important:Beforeoperatingthemachine,check
theuidlevels,andremovedebrisfromthe machine.Ensurethattheareaisclearofpeople anddebris.Youshouldalsoknowandhave markedthelocationsofallutilitylines.

AddingFuel

DANGER
Incertainconditions,fuelisextremely ammableandhighlyexplosive.Areor explosionfromfuelcanburnyouandothers andcandamageproperty.
Fillthefueltanksoutdoors,inanopen area,whentheengineiscold.Wipeupany fuelthatspills.
Neverllthefueltanksinsideanenclosed trailer.
Neversmokewhenhandlingfuelandstay awayfromanopenameorwherefuel fumesmaybeignitedbyaspark.
Storefuelinanapprovedcontainerand keepitoutofthereachofchildren.Never buymorethana30-daysupplyoffuel.
Donotoperatewithoutentireexhaust systeminplaceandinproperworking condition.
DANGER
Incertainconditionsduringfueling,static electricitycanbereleased,causingaspark thatcanignitethefuelvapors.Areor explosionfromfuelcanburnyouandothers andcandamageproperty.
Alwaysplacefuelcontainersontheground awayfromyourvehiclebeforelling.
Donotllfuelcontainersinsideavehicle oronatruckortrailerbed,becauseinterior carpetsorplastictruckbedlinersmay insulatethecontainerandslowthelossof anystaticcharge.
Whenpractical,removeequipmentfrom thetruckortrailerandrefueltheequipment withitswheelsontheground.
Ifthisisnotpossible,thenrefuelsuch equipmentonatruckortrailerfroma portablecontainerratherthanfroma fuel-dispensernozzle.
Ifyoumustuseafuel-dispensernozzle, keepthenozzleincontactwiththerimof thefueltankorcontaineropeningatall timesuntilfuelingiscomplete.
WARNING
Fuelisharmfulorfatalifswallowed. Long-termexposuretovaporscancause seriousinjuryandillness.
Avoidprolongedbreathingofvapors.
Keepyourfaceawayfromthenozzleand fueltankopening.
Keepfuelawayfromyoureyesandskin.

RecommendedFuel

Forbestresults,useonlyclean,fresh(lessthan
30daysold),unleadedgasolinewithanoctane ratingof87orhigher((R+M)/2ratingmethod).
Ethanol:Gasolinewithupto10%ethanol
(gasohol)or15%MTBE(methyltertiarybutyl ether)byvolumeisacceptable.Ethanoland MTBEarenotthesame.Gasolinewith15% ethanol(E15)byvolumeisnotapprovedforuse.
Neverusegasolinethatcontainsmorethan 10%ethanolbyvolume,suchasE15(contains
15%ethanol),E20(contains20%ethanol),orE85 (containsupto85%ethanol).Usingunapproved gasolinemaycauseperformanceproblemsand/or enginedamagewhichmaynotbecoveredunder warranty.
Donotusegasolinecontainingmethanol.
16
Donotstorefueleitherinthefueltankorfuel
containersoverthewinterunlessyouuseafuel stabilizer.
Donotaddoiltogasoline.
5.Installthefuel-tankcapsecurely .
6.Wipeupanyspilledfuel.
PerformingDaily

UsingStabilizer/Conditioner

Useafuelstabilizer/conditionerinthemachineto providethefollowingbenets:
Keepsfuelfreshlongerwhenusedasdirectedby
thefuel-stabilizermanufacturer
Cleanstheenginewhileitruns
Eliminatesgum-likevarnishbuildupinthefuel
system,whichcauseshardstarting
Important:Donotusefueladditives
containingmethanolorethanol.
Addthecorrectamountoffuelstabilizer/conditioner tothefuel.
Note:Afuelstabilizer/conditionerismost
effectivewhenmixedwithfreshfuel.T ominimize thechanceofvarnishdepositsinthefuelsystem, usefuelstabilizeratalltimes.

FillingtheFuelTank

1.Parkthemachineonalevelsurface,engage theparkingbrake(ifapplicable),andlowerthe hydrauliclift.
2.Shutofftheengine,removethekey,andallow theenginetocool.
3.Cleanaroundthefuel-tankcapandremoveit (Figure15).
Maintenance
Beforestartingthemachineeachday ,performthe EachUse/DailyprocedureslistedinMaintenance
(page21).

StartingtheEngine

1.Movethethrottlelevermidwaybetweenthe SLOWandFASTpositions(Figure16).
g007809
Figure16
1.Throttlelever3.Key
2.Chokelever
2.MovethechokelevertotheONposition(Figure
16).
Figure15
1.Fuel-tankcap
4.Fillthetankwithfueltoabout6to13mm(1/4to 1/2inch)belowthebottomofthellerneck.
Important:Thisspaceinthetankallows
fueltoexpand.Donotllthefueltank completelyfull.
Note:Awarmorhotenginemaynotrequire
choking.
3.Starttheengineasfollowsforyourmachine:
Forrecoil-startmachines,turnthekeytothe
ONposition,thenpulltherecoilhandleon topoftheengine.
Forelectric-startmachines,turnthekey
totheONposition(Figure16).Whenthe enginestarts,releasethekey.
g247445
4.GraduallymovethechokelevertotheOFF
17
Important:Donotengagethestarterfor
morethan10secondsatatime.Ifthe enginefailstostart,allowa30-second cooldownperiodbetweenattempts. Failuretofollowtheseinstructionscan burnoutthestartermotor.
position(Figure16).Iftheenginestallsor hesitates,engagethechokeagainuntilthe enginewarmsup.
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