Toro TRX-16, TRX-20, TRX-26 Original Instructions Manual

FormNo.3390-434RevA

TRX-16,TRX-20,andTRX-26
Trencher

ModelNo.22972—SerialNo.315000001andUp
ModelNo.22972G—SerialNo.315000001andUp
ModelNo.22973—SerialNo.315000001andUp
ModelNo.22973G—SerialNo.315000001andUp
ModelNo.22974—SerialNo.315000001andUp

Registeratwww.T oro.com.
OriginalInstructions(EN)

*3390-434*A

Thismachineisdesignedtodigtrenchesinsoiltobury

G007797

1

cablingandpipingforvariousapplications.Itisnotintended
tocutrock,wood,oranyothermaterialotherthansoil.

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

Theengineexhaustfromthisproduct

containschemicalsknowntotheStateof

Californiatocausecancer,birthdefects,

orotherreproductiveharm.

DANGER

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

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

ThissparkignitionsystemcomplieswithCanadianICES-002.

Important:Thisengineisnotequippedwithaspark
arrestermufer.ItisaviolationofCaliforniaPublic
ResourceCodeSection4442touseoroperatetheengine
onanyforest-covered,brush-covered,orgrass-covered
land.Otherstatesorfederalareasmayhavesimilarlaws.

Theenclosed
informationregardingtheUSEnvironmentalProtection
Agency(EPA)andtheCaliforniaEmissionControl
Regulationofemissionsystems,maintenance,and
warranty.Replacementsmaybeorderedthroughthe
enginemanufacturer.

EngineOwner'sManual

issuppliedfor

Introduction

Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely.

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

Wheneveryouneedservice,genuineToroparts,oradditional
information,contactanAuthorizedServiceDealerorToro
CustomerServiceandhavethemodelandserialnumbersof
yourproductready .Figure1illustratesthelocationofthe
modelandserialnumbersontheproduct.Writethenumbers
inthespaceprovided.

Figure1

1.Modelandserialnumberplate

ModelNo.

SerialNo.

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

ThisproductcomplieswithallrelevantEuropeandirectives;
fordetails,pleaseseetheseparateproductspecicDeclaration
ofConformity(DOC)sheet.

Figure2

1.Safetyalertsymbol

Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation

©2015—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

andNoteemphasizesgeneralinformationworthyofspecial
attention.

Contactusatwww.Toro.com.

2

PrintedintheUSA

AllRightsReserved

Contents

Safety...........................................................................4

SafeOperatingPractices...........................................4

SoundPressure.......................................................6

SoundPower..........................................................6

Vibration................................................................6

SlopeIndicator.......................................................7

SafetyandInstructionalDecals.................................8

Setup...........................................................................12

1InstallingtheBoomandChain...............................12

2CheckingFluidLevels...........................................13

3ChargingtheBattery(ElectricStartModels

Only)................................................................13

ProductOverview.........................................................13

Controls...............................................................13

Specications........................................................16

Attachments/Accessories........................................16

Operation....................................................................16

RecommendedFuel................................................16

CheckingtheEngine-OilLevel.................................17

CheckingtheHydraulicFluidLevel...........................17

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

StoppingtheMachine.............................................19

MovingaNon-functioningMachine.........................19

DiggingaTrench....................................................20

SecuringtheMachineforTransport..........................20

LiftingtheMachine................................................20

OperatingTips......................................................21

Maintenance.................................................................22

RecommendedMaintenanceSchedule(s)......................22

PremaintenanceProcedures........................................23

RemovingtheCoverPlate........................................23

InstallingtheCoverPlate.........................................23

RemovingtheBottomShield...................................23

InstallingtheBottomShield.....................................23

Lubrication...............................................................24

GreasingtheMachine.............................................24

GreasingtheTrencherHousing................................24

EngineMaintenance..................................................25

ServicingtheAirCleaner(Models22972and

22973)...............................................................25

ServicingtheAirCleaner(Model22974)....................26

ServicingtheEngineOil..........................................27

ServicingtheSparkPlug..........................................28

FuelSystemMaintenance...........................................29

DrainingtheFuelTank...........................................29

ReplacingtheFuelFilter..........................................30

ElectricalSystemMaintenance....................................30

ServicingtheBattery(Models22973and

22974)...............................................................30

ReplacingtheFuses(Models22973and

22974)...............................................................32

DriveSystemMaintenance.........................................33

ServicingtheTracks................................................33

BeltMaintenance......................................................35

ReplacingthePumpDriveBelt.................................35

ControlsSystemMaintenance.....................................36

AdjustingtheTractionControlAlignment.................36

AdjustingtheTractionControlNeutral

Position.............................................................37

AdjustingtheTrackingoftheTractionControl,

FullForwardPosition..........................................37

HydraulicSystemMaintenance....................................38

ReplacingtheHydraulicFilter..................................38

ChangingtheHydraulicFluid...................................38

CheckingtheHydraulicLines...................................39

TrencherMaintenance................................................40

ReplacingtheDiggingTeeth....................................40

CheckingandAdjustingtheDiggingChainand

Boom................................................................40

ReplacingtheDriveSprocket...................................40

Cleaning...................................................................42

RemovingDebrisfromtheMachine..........................42

Storage........................................................................42

Troubleshooting...........................................................44

Schematics...................................................................46

3

Safety

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

Caution

,

Warning

,or

Danger

SafeOperatingPractices

Thisproductiscapableofamputatinghandsandfeet.Always
followallsafetyinstructionstoavoidseriousinjuryordeath.

WARNING

Engineexhaustcontainscarbonmonoxide,an
odorless,deadlypoisonthatcankillyou.

Donotruntheengineindoorsorinanenclosed
area.

Training

•ReadtheOperator'sManualandothertrainingmaterial.If

theoperator(s)ormechanic(s)can’treadEnglish,itisthe
owner'sresponsibilitytoexplainthismaterialtothem.

•Becomefamiliarwiththesafeoperationoftheequipment,

operatorcontrols,andsafetysigns.

•Alloperatorsandmechanicsshouldbetrained.The

ownerisresponsiblefortrainingtheusers.

•Neverletchildrenoruntrainedpeopleoperateorservice

theequipment.Localregulationsmayrestricttheageof
theoperator.

•Theowner/usercanpreventandisresponsiblefor

accidentsorinjuriesoccurringtohimselforherself,other
peopleorproperty.

Preparation

•Evaluatetheterraintodeterminewhataccessoriesand

attachmentsareneededtoproperlyandsafelyperform
thejob.Onlyuseaccessoriesandattachmentsapproved
bythemanufacturer.

•Wearappropriateclothingincludinghardhat,safety

glasses,longpants,safetyshoes,andhearingprotection.
Longhair,looseclothingorjewelrymaygettangledin
movingparts.

•Inspecttheareawheretheequipmentistobeusedand

removeallobjectssuchasrocks,toys,andwirewhichcan
bethrownbythemachine.

•Useextracarewhenhandlinggasolineandotherfuels.

Theyareammableandvaporsareexplosive.

–Useonlyanapprovedcontainer
–Neverremovethegascaporaddfuelwiththeengine

running.Allowtheenginetocoolbeforerefueling.
Donotsmoke.

,which

—personalsafety

–Neverrefuelordrainthemachineindoors.

•Checkthattheoperatorpresencecontrols,safetyswitches,

andshieldsareattachedandfunctioningproperly .Donot
operateunlesstheyarefunctioningproperly .

Operation

•Neverrunanengineinanenclosedarea.

•Onlyoperateingoodlight,keepingawayfromholesand

hiddenhazards.

•Besurealldrivesareinneutralandtheparkingbrakeis

engagedbeforestartingtheengine.Onlystarttheengine
fromtheoperator'sposition.

•Slowdownanduseextracareonhillsides.Besureto

travelintherecommendeddirectiononhillsides.Turf
conditionscanaffectthemachine'sstability.

•Slowdownandusecautionwhenmakingturnsandwhen

changingdirectionsonslopes.

•Neveroperatewithouttheguardssecurelyinplace.Be

sureallinterlocksareattached,adjusted,andfunctioning
properly.

•Donotchangetheenginegovernorsettingoroverspeed

theengine.

•Stoponlevelground,lowertheboom,disengagethe

trencherhydraulics,engagetheparkingbrake,andshut
offtheenginebeforeleavingtheoperator'spositionfor
anyreason.

•Keephandsandfeetawayfromthemovingchain,digging

teeth,andspoilsauger.

•Lookbehindanddownbeforebackinguptobesureof

aclearpath.

•Nevercarrypassengersandkeeppetsandbystanders

away.

•Slowdownandusecautionwhenmakingturnsand

crossingroadsandsidewalks.

•Donotoperatethemachineundertheinuenceof

alcoholordrugs.

•Usecarewhenloadingorunloadingthemachineintoa

trailerortruck.

•Usecarewhenapproachingblindcorners,shrubs,trees,

orotherobjectsthatmayobscurevision.

•Ensurethattheareaisclearofotherpeoplebefore

operatingthemachine.Stopthemachineifanyoneenters
thearea.

•Neverleavearunningmachineunattended.Alwayslower

theboom,stoptheengine,settheparkingbrake,and
removethekeybeforeleaving.

•Neverjerkthecontrols;useasteadymotion.

•Watchfortrafcwhenoperatingnearorcrossing

roadways.

•Donottouchpartswhichmaybehotfromoperation.

Allowthemtocoolbeforeattemptingtomaintain,adjust,
orservice.

4

•Ensurethatyouoperatethemachineinareaswhere

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

•Beforedigging,havetheareamarkedforunderground

utilities,anddonotdiginmarkedareas.

•Locatethepinchpointareasmarkedonthemachineand

keephandsandfeetawayfromtheseareas.

•Lightningcancausesevereinjuryordeath.Iflightning

isseenorthunderisheardinthearea,donotoperate
themachine;seekshelter.

MaintenanceandStorage

•Disengagethetrencherhydraulics,lowertheboom,set

theparkingbrake,stoptheengine,andremovethekey.
Waitforallmovementtostopbeforeadjusting,cleaning,
orrepairing.

•Cleandebrisfromthechain,diggingteeth,boom,

trencherhead,drives,mufers,andenginetohelpprevent
res.Cleanupoilorfuelspillage.

•Lettheenginecoolbeforestoringanddonotstorenear

ame.

•Donotstorefuelnearamesordrainindoors.

•Parkthemachineonlevelground.Neverallowuntrained

personneltoservicethemachine.

•Usejackstandstosupportcomponentswhenrequired.

SlopeOperation

Slopesareamajorfactorrelatedtoloss-of-controland
tip-overaccidents,whichcanresultinsevereinjuryordeath.
Allslopesrequireextracaution.

•Donotoperatethemachineonhillsidesorslopes

exceedingtheanglesrecommendedinthefollowingtable.

ModelFrontFacing

22972

22973

22974

Note:SeealsotheSlopeIndicator(page7).

Uphill

15°14°19°

13°14°19°

11°11°16°

•Operateupanddownslopeswiththefrontendof

themachineuphill.

•Removeobstaclessuchasrocks,treelimbs,etc.fromthe

workarea.Watchforholes,ruts,orbumps,asuneven
terraincouldoverturnthemachine.Tallgrasscanhide
obstacles.

•UseonlyToro-approvedaccessories.Accessoriescan

changethestabilityandtheoperatingcharacteristics
ofthemachine.Warrantymaybevoidedifusedwith
unapprovedaccessories.

•Keepallmovementsonslopesslowandgradual.Donot

makesuddenchangesinspeedordirection.

•Avoidstartingorstoppingonaslope.Ifthemachine

losestraction,proceedslowly,straightdowntheslope.

•Avoidturningonslopes.Ifyoumustturn,turnslowly

andkeeptheheavyendofthemachineuphill.

•Donotoperateneardrop-offs,ditches,orembankments.

Themachinecouldsuddenlyturnoverifatrackgoes
overtheedgeofaclifforditch,orifanedgecavesin.

•Donotoperateonwetgrass.Reducedtractioncould

causesliding.

•Donotparkthemachineonahillsideorslopewithout

loweringtheboomtotheground,settingtheparking
brake,andchockingthetracks.

RearFacing

Uphill

SideFacing

Uphill

•Carefullyreleasepressurefromcomponentswithstored

energy.

•Disconnectthebattery(electricstartmodelsonly)or

removethesparkplugwiresbeforemakinganyrepairs.
Disconnectthenegativeterminalrstandthepositive
last.Reconnectpositiverstandnegativelast.

•Keephandsandfeetawayfrommovingparts.Ifpossible,

donotmakeadjustmentswiththeenginerunning.

•Keepallpartsingoodworkingconditionandallhardware

tightened.Replaceallwornordamageddecals.

•Keepnutsandboltstight.Keepequipmentingood

condition.

•Nevertamperwithsafetydevices.

•Keepthemachinefreeofgrass,leaves,orotherdebris

build-up.Cleanupoilorfuelspillage.Allowthemachine
tocoolbeforestoring.

•Useextracarewhenhandlinggasolineandotherfuels.

Theyareammableandvaporsareexplosive.

–Useonlyanapprovedcontainer.

–Neverremovethegascaporaddfuelwhenthe

engineisrunning.Allowtheenginetocoolbefore
refueling.Donotsmoke.

–Neverrefuelthemachineindoors.

–Neverstorethemachineorfuelcontainerinside

wherethereisanopename,suchasnearawater
heaterorfurnace.

–Neverllacontainerwhileitisinsideavehicle,trunk,

pick-upbed,oranysurfaceotherthantheground.

–Keepcontainernozzleincontactwiththetankduring

lling.

•Stopandinspecttheequipmentifyoustrikeanobject.

Makeanynecessaryrepairsbeforerestarting.

•UseonlygenuineT ororeplacementpartstoensurethat

originalstandardsaremaintained.

•Batterysafety(electricstartmodelsonly):

5

–Chargebatteriesinanopen,wellventilatedarea,away

fromsparkandames.Unplugthechargerbefore
connectingordisconnectingitfromthebattery.Wear
protectiveclothinganduseinsulatedtools.

–Batteryacidispoisonousandcancauseburns.Avoid

contactwithskin,eyes,andclothing.Protectyour
face,eyes,andclothingwhenworkingwithabattery.

Soundpowerlevelwasdeterminedaccordingtothe
proceduresoutlinedinENISO3744.

Model22974

Thisunithasaguaranteedsoundpowerlevelof107dBA,
whichincludesanUncertaintyValue(K)of3.75dBA.

–Batterygasescanexplode.Keepcigarettes,sparks

andamesawayfromthebattery.

•Keepyourbodyandhandsawayfrompinholeleaks

ornozzlesthatejecthighpressurehydraulicuid.Use
cardboardorpapertondhydraulicleaks;neveruse
yourhands.Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjuryrequiringsurgerywithina
fewhoursbyaqualiedsurgeonorgangrenemayresult.

SoundPressure

Model22972

Thisunithasasoundpressurelevelattheoperator’searof89
dBA,whichincludesanUncertaintyValue(K)of1.0dBA.

Soundpressurelevelwasdeterminedaccordingtothe
proceduresoutlinedinENISO11201.

Model22973

Thisunithasasoundpressurelevelattheoperator’searof90
dBA,whichincludesanUncertaintyValue(K)of1.0dBA.

Soundpressurelevelwasdeterminedaccordingtothe
proceduresoutlinedinENISO11201.

Soundpowerlevelwasdeterminedaccordingtothe
proceduresoutlinedinENISO3744.

Vibration

Model22972

Measuredvibrationlevelforrighthand=2.1m/s

Measuredvibrationlevelforlefthand=2.0m/s

UncertaintyValue(K)=1.1m/s

Measuredvaluesweredeterminedaccordingtotheprocedures
outlinedinENISO20643.

Model22973

Measuredvibrationlevelforrighthand=2.3m/s

Measuredvibrationlevelforlefthand=2.1m/s

UncertaintyValue(K)=1.1m/s

Measuredvaluesweredeterminedaccordingtotheprocedures
outlinedinENISO20643.

Model22974

2

2

2

2

2

2

Model22974

Thisunithasasoundpressurelevelattheoperator’searof93
dBA,whichincludesanUncertaintyValue(K)of1.0dBA.

Soundpressurelevelwasdeterminedaccordingtothe
proceduresoutlinedinENISO11201.

SoundPower

Model22972

Thisunithasaguaranteedsoundpowerlevelof107dBA,
whichincludesanUncertaintyValue(K)of3.75dBA.

Soundpowerlevelwasdeterminedaccordingtothe
proceduresoutlinedinENISO3744.

Model22973

Thisunithasaguaranteedsoundpowerlevelof108dBA,
whichincludesanUncertaintyValue(K)of3.75dBA.

Measuredvibrationlevelforrighthand=1.8m/s

Measuredvibrationlevelforlefthand=2.0m/s

UncertaintyValue(K)=1.00m/s

Measuredvaluesweredeterminedaccordingtotheprocedures
outlinedinENISO20643.

2

2

2

6

SlopeIndicator

G011841

Figure3

Thispagemaybecopiedforpersonaluse.

1.Todeterminethemaximumslopeyoucansafelyoperatethemachineon,refertotheSlopeOperationsection.Usetheslope

indicatortodeterminethedegreeofslopeofhillsbeforeoperating.Donotoperatethismachineonaslopegreaterthanthat
speciedintheSlopeOperationsection.Foldalongtheappropriatelinetomatchtherecommendedslope.

2.Alignthisedgewithaverticalsurface,atree,building,fencepole,etc.

3.Exampleofhowtocompareslopewithfoldededge.

7

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.Replaceanydecalthatisdamagedorlost.

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,movethetrenchercontrolleverintotheOffposition,
placethetractioncontrolinNeutral,movetheenginespeedtoFastandthechoketoOn/Closed,turntheignitionkeytorun,
andreleasetheparkingbrakeoncetheenginehasstarted.

14.ReadtheOperator'sManualbeforeoperatingthetrencher;tooperatethetrencher,lowertheboom,movethetrenchercontrol
levertothereferencebar,pullthetractioncontrolrearwardtomoveinreverseanddigthetrench.

8

115-1231

1.Cutting/dismembermenthazardofbystanders,
trencher—keepbystandersasafedistancefromthemachine;
donotoperatethetrencherchainwhiletransportingthe
machine.

2.Explosionhazard,fueling—stoptheengineandextinguish
allameswhenfueling.

3.Tipping/crushinghazard—lowerthetrencherheadwhen
operatingonslopes.

4.Warning—stayawayfrommovingparts;waitforallmoving
partstostop

5.Warning—lowertheboom,engagetheparkingbrakeand
stoptheengine,removetheignitionkey,beforeleavingthe
machine.

6.Explosionhazard;shockhazard—donotusemachinenear
buriedutilitylines;contacttheproperagenciesbeforedigging.

7.Boomelevation

8.Lowertheboom

9.Raisetheboom

99-9952

1.Cuttinghazard,chainandauger—stayawayfrommovingpartsandkeepbystandersawayfromthemachine.

2.Warning—stoptheengineandremovethekeybeforepreformingandmaintenanceorrepairs.

3.Explosionand/orelectricshockhazard—donotdiginareaswithburiedgasorpowerlines.

9

115-4020

1.Turnright3.Reverse

2.Forward

93-7814

1.Entanglementhazard,belt—stayawayfrommovingparts.

93-6686

1.Hydraulicoil

2.ReadtheOperator'sManual.

4.Turnleft

100-4650

1.Crushinghazardofhand—keepbystandersasafedistance
fromthemachine.

2.Crushinghazardoffoot—keepbystandersasafedistance
fromthemachine.

1.Liftpoint

107-8495

1.Parkingbrake

93-9084

2.Tie-downpoint

117–2718

10

BatterySymbols

Someorallofthesesymbolsareonyourbattery

1.Explosionhazard

2.Nore,opename,or
smoking.

3.Causticliquid/chemical
burnhazard

4.Weareyeprotection9.Flusheyesimmediately

5.ReadtheOperator's

Manual.

6.Keepbystandersasafe

7.Weareyeprotection;

8.Batteryacidcancause

10.Containslead;donot

distancefromthebattery.

explosivegasescan
causeblindnessandother
injuries

blindnessorsevereburns.

withwaterandgetmedical
helpfast.

discard.

11

Setup

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescription

Boom(soldseparately)

1
2

3

Chain(soldseparately)

Nopartsrequired

Nopartsrequired

1

InstallingtheBoomandChain

Partsneededforthisprocedure:

1

Boom(soldseparately)

1

Chain(soldseparately)

Procedure

Important:Thereareseveralboomandchainsize

congurationsavailable.RefertoyouAuthorizedService
Dealertoobtaintheappropriateboomandchainto
meetyourrequirements.

1.Stoptheengineandremovethekey.

2.Removethebolt,2saddlewashers,andnutsecuring
thespoilsaugerandremovetheauger(Figure4).

Note:Savethefastenersforfutureuse.

Qty.

1
1

–

–

1.Spoilsauger

2.Boom7.Jamnut

3.Bolts8.Armonthedrivehead

4.Doublewasher9.Drivesprocket

5.Nuts

3.Removethe2bolts,nuts,anddoublewashersfromthe
sidesoftheboom(Figure4).

Installtheboomandchain.

Checktheuidlevels.

Chargethebattery.

Figure4

Use

6.Adjustingbolt

4.Loosentheadjustingboltandjamnut(Figure4).

5.Slidetheboomoverthearmonthedrivehead.

6.Installthe2bolts,nuts,anddoublewashersremovedin
step3throughtheboomandarm,butdonottighten
them.

7.Ifthechainisnotconnected,connectthelinksby
pressingorhammeringtheclevispinsuppliedwiththe
chainthroughthelinks.

Important:T oavoidbendingthechainlinks,
placeblocksunderandbetweenthelinkswhen
hammeringtheclevispinthrough.

8.Securetheclevispinwiththecotterpinsuppliedwith
thechain.

12

9.Loopthediggingchainovertheaugerdriveshaftand

G007801

5

6

783

4

1

2

ontothedrivesprocket,ensuringthatthediggingteeth
pointforwardontheupperspan.

10.Settheupperspanofthechainintoplaceonthe
trencherboom,thenwrapthechainaroundtheroller
attheendoftheboom.

11.Threadtheadjustmentboltintotheboomandturnit
inuntilthereis3.8to6.3cm(1-1/2to2-1/2inches)of
slackinthechainonthebottomspan.

12.Threadthejamnutdowntheadjustingboltandtighten
itsecurelyagainsttheboom.

13.Torquethe2boltsandnutssecuringtheboomto183
to223N-m(135to165ft-lb).

14.Installthespoilsaugerusingthebolt,2saddlewasher,
andnutyouremovedpreviously.

15.Torquetheboltandnutto101N-m(75ft-lb).

2

ProductOverview

Figure5

1.Control
panel

2.Engine

3.Spoils
auger

4.Chain
guard

5.Chain

6.Digging
teeth

7.Boom10.Reverse
safety
plate

8.Trencher

head

9.Track

CheckingFluidLevels

NoPartsRequired

Procedure

Beforestartingtheengineforthersttime,checktheengine
oilandhydraulicuidlevels;refertoCheckingtheEngine-Oil

Level(page17)andCheckingtheHydraulicFluidLevel(page

17)formoreinformation.

3

ChargingtheBattery(Electric StartModelsOnly)

NoPartsRequired

Procedure

Chargethebattery;refertoChargingtheBattery(page32)
formoreinformation.

Controls

Becomefamiliarwithallthecontrols(Figure6)beforeyou
starttheengineandoperatethemachine.

Figure6

1.Tractioncontrol5.Throttlelever

2.Boomelevationlever

3.Trenchercontrollever7.Keyswitch

4.Referencebar

KeySwitch,Model22972

Thekeyswitchhas2positions:OffandRun.

Tostarttheengine,rotatethekeytotheRunposition,then
pulltherecoilhandleontheengine.

6.Chokelever

8.Hourmeter

Tostoptheengine,rotatethekeytotheOffposition.

13

KeySwitch,ElectricStartModels

G008131

G008132

Thekeyswitchhasthreepositions:Off,Run,andStart.

Tostarttheengine,rotatethekeytotheStartposition.
Releasethekeywhenenginestartsanditwillmove
automaticallytotheRunposition.

Tostoptheengine,rotatethekeytotheOffposition.

ThrottleLever

Movethecontrolforwardtoincreasetheenginespeedand
rearwardtodecreasespeed.

ChokeLever

Beforestartingacoldengine,movethechokeleverforward.
Aftertheenginestarts,regulatethechoketokeeptheengine
runningsmoothly.Assoonaspossible,movethechokelever
allthewayrearward.

Note:Awarmenginerequireslittleornochoking.

HourMeter

Whentheengineisoff,thehourmeterdisplaysthenumber
ofhoursofoperationthathavebeenloggedonthemachine.

ReferenceBar

Whendrivingthemachine,usethereferencebarasahandle
andaleveragepointforcontrollingthetractioncontroland
thetrenchercontrollever.Toensuresmooth,controlled
operation,donottakebothhandsoffofthereferencebar
whileoperatingthemachine.

Figure8

•Tomoverearward,movethetractioncontrolrearward

(Figure9).Whenreversing,lookbehindfor

obstructionsandkeepyourhandsonthereference
bar(Figure7).

Figure9

•Toturnright,rotatethetractioncontrolclockwise(Figure

10).

TractionControl

Figure7

1.Referencebar(doesnotmovetogiveyouareferencepoint
andaxedhandletoholdwhileoperatingthetractionunit)

2.Tractioncontrol(movestocontrolthemachine)

•Tomoveforward,movethetractioncontrolforward

(Figure8).

Figure10

•Toturnleft,rotatethetractioncontrolcounterclockwise

(Figure11).

Figure11

•Tostop,releasethetractioncontrol(Figure7).

Note:Thefartheryoumovethetractioncontrolinany
direction,thefasterthemachinewillmoveinthatdirection.

14

BoomElevationLever

G007804

1

TrencherControlLever

Tolowertheboom,slowlymovetheleverforward(Figure

12).

Toraisetheboom,slowlymovetheleverrearward(Figure12).

Figure12

1.Lowertheboom2.Raisetheboom

BoomElevationLock

Theboomelevationlocksecurestheboomelevationleverso
thatyoucannotpushitforward.Thishelpstoensurethatno
onewillaccidentallylowertheboomduringmaintenance.
Securetheboomwiththelockanytimeyouneedtostopthe
machinewiththeboomraised.

Tosetthelock,liftuponitsoitclearstheholeinthecontrol
panelandswingittotherightinfrontoftheboomelevation
lever,pushingitdownintothelockedposition(Figure13).

Todigwiththetrencher,rotatetheleverrearwardandpullit
downtothereferencebar(Figure14,number1).

Toreversethetrencherhead,rotatetheleverrearward,then
moveitleftintotheupperslot(Figure14,number2).

Ifyoureleasethelever,itwillautomaticallyreturntothe
neutralposition(Figure14,number3),stoppingthechain.

Figure14

1.Forward3.Neutral

2.Reverse

ParkingBrakeLever

•Tosettheparkingbrake,pullthebrakeleverrearward

andup(Figure15).

•Toreleasethebrake,pulltheleverrearwardandthen

down(Figure15).

Figure13

1.Boomelevationlever2.Boomelevationlock

Figure15

1.Parkingbrakelever(inthereleasedposition)

15

Specications

Note:Specicationsanddesignaresubjecttochange

withoutnotice.

Width

Length,with70cm(24
inch)boom

Length,with91.4cm(36
inch)boom

Length,with122cm(48
inch)boom(model22974
only)

Height

Weight(model22972)*499kg(1,100lb)

Weight(model22973)*538kg(1,185lb)

Weight(model22974)*578kg(1,208lb)

*A91.4cm(36inch)boomandchainwilladdabout27kg(60lb)tothelistedweight.

Attachments/Accessories

AselectionofToroapprovedattachmentsandaccessoriesis
availableforusewiththemachinetoenhanceandexpand
itscapabilities.ContactyourAuthorizedServiceDealeror
Distributororgotowww .Toro.comforalistofallapproved
attachmentsandaccessories.

86cm(33.8inches)

209.5cm(82.5inches)

235cm(92.6inches)

282.5cm(111.2inches)

117cm(46inches)

Operation

Note:Determinetheleftandrightsidesofthemachine

fromthenormaloperatingposition.

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

RecommendedFuel

•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.Neverusegasolinethatcontainsmore
than10%ethanolbyvolume,suchasE15(contains15%
ethanol),E20(contains20%ethanol),orE85(contains
85%ethanol).Usingunapprovedgasolinemaycause
performanceproblemsand/orenginedamagewhichmay
notbecoveredunderwarranty.

•Donotusegasolinecontainingmethanol.

•Donotstorefueleitherinthefueltankorfuelcontainers

overthewinterunlessafuelstabilizerisused.

•Donotaddoiltogasoline.

DANGER

Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areorexplosion
fromgasolinecanburnyouandothersandcan
damageproperty.

•Fillthefueltankoutdoors,inanopenarea,
whentheengineiscold.Wipeupanygasoline
thatspills.

•Neverllthefueltankinsideanenclosedtrailer.

•Donotllthefueltankcompletelyfull.Add
gasolinetothefueltankuntilthelevelis6to13
mm(1/4to1/2inch)belowthebottomofthe
llerneck.Thisemptyspaceinthetankallows
gasolinetoexpand.

•Neversmokewhenhandlinggasoline,andstay
awayfromanopenameorwheregasoline
fumesmaybeignitedbyaspark.

•Storegasolineinanapprovedcontainerand
keepitoutofthereachofchildren.Neverbuy
morethana30-daysupplyofgasoline.

•Donotoperatewithoutentireexhaustsystemin
placeandinproperworkingcondition.

16