Toro TRX-15 User manual

FormNo.3359-661RevB
TRX-15andTRX-19Trencher
ModelNo.22970—SerialNo.280000001andUp
ModelNo.22971—SerialNo.280000001andUp
Registeratwww.Toro.com.OriginalInstructions(EN)

Warning
CALIFORNIA
Proposition65Warning
Theengineexhaustfromthisproduct
containschemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Theremaybeburiedpower,gas,and/or
telephonelinesintheworkarea.Shockor
explosionmayoccurifyoudigintothem.
Havethepropertyorworkareamarkedfor
buriedlinesanddonotdiginmarkedareas.
Contactyourlocalmarkingserviceorutility
companytohavethepropertymarked(for
example,intheUnitedStates,call811forthe
nationwidemarkingservice).
ThissparkignitionsystemcomplieswithCanadian
ICES-002.
Important:Thisengineisnotequippedwitha
sparkarrestermufer.ItisaviolationofCalifornia
PublicResourceCodeSection4442touseoroperate
theengineonanyforest-covered,brush-covered,or
grass-coveredland.Otherstatesorfederalareas
mayhavesimilarlaws.
Theenclosed
Engine Owner’ s Man ual issupplied
forinformationregardingtheUSEnvironmental
ProtectionAgency(EPA)andtheCalifornia
EmissionControlRegulationofemissionsystems,
maintenance,andwarranty.Replacementsmaybe
orderedthroughtheenginemanufacturer.
Introduction
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoidinjury
andproductdamage.Youareresponsibleforoperating
theproductproperlyandsafely.
YoumaycontactTorodirectlyatwww.Toro.comfor
productandaccessoryinformation,helpndinga
dealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
illustratesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
G007797
1
Figure1
1.Modelandserialnumberplate
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafetyalertsymbol
(Figure2),whichsignalsahazardthatmaycauseserious
injuryordeathifyoudonotfollowtherecommended
precautions.
Figure2
1.Safetyalertsymbol
Thismanualuses2otherwordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
©2008—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA.
AllRightsReserved

Contents
Introduction.................................................................2
Safety...........................................................................4
SafeOperatingPractices.......................................4
SoundPressure.....................................................6
SoundPower........................................................6
Vibration..............................................................6
SlopeChart..........................................................7
SafetyandInstructionalDecals.............................8
Setup..........................................................................11
1InstallingtheBoomandChain.........................11
2CheckingFluidLevels......................................12
3ChargingtheBattery(Model22971
Only)..............................................................12
ProductOverview......................................................12
Controls.............................................................12
Specications.....................................................15
Attachments/Accessories...................................15
Operation...................................................................15
AddingFuel.......................................................15
CheckingtheEngineOilLevel............................16
CheckingtheHydraulicFluidLevel.....................17
StartingandStoppingtheEngine........................18
StoppingtheMachine.........................................19
MovingaNon-functioningMachine...................19
DiggingaTrench................................................19
SecuringtheMachineforTransport....................19
LiftingtheMachine............................................20
OperatingTips...................................................20
Maintenance...............................................................21
RecommendedMaintenanceSchedule(s)................21
PremaintenanceProcedures....................................22
RemovingtheCoverPlate...................................22
InstallingtheCoverPlate....................................22
RemovingtheBottomShield..............................22
InstallingtheBottomShield................................22
Lubrication.............................................................23
GreasingtheMachine.........................................23
GreasingtheTrencherHousing..........................23
EngineMaintenance...............................................24
ServicingtheAirCleaner....................................24
ServicingtheEngineOil.....................................25
ServicingtheSparkPlug.....................................27
FuelSystemMaintenance.......................................28
DrainingtheFuelTank.......................................28
ReplacingtheFuelFilter.....................................28
ElectricalSystemMaintenance................................29
ServicingtheBattery(Model22971
Only)..............................................................29
ReplacingtheFuses(Model22971
Only)..............................................................31
DriveSystemMaintenance.....................................32
ServicingtheTracks............................................32
BeltMaintenance....................................................34
ReplacingthePumpDriveBelt...........................34
ControlsSystemMaintenance.................................35
AdjustingtheTractionControl
Alignment......................................................35
AdjustingtheTractionControlNeutral
Position..........................................................36
AdjustingtheTrackingoftheTraction
Control,FullForwardPosition........................36
HydraulicSystemMaintenance...............................37
ReplacingtheHydraulicFilter.............................37
ChangingtheHydraulicFluid.............................37
CheckingtheHydraulicLines.............................38
TrencherMaintenance............................................38
ReplacingtheDiggingTeeth...............................38
CheckingandAdjustingtheDiggingChain
andBoom......................................................38
ReplacingtheDriveSprocket..............................39
Cleaning.................................................................40
RemovingDebrisfromtheMachine....................40
Storage.......................................................................41
Troubleshooting.........................................................42
Schematics.................................................................44
3

Safety
Improperuseormaintenancebytheoperatoror
ownercanresultininjury.Toreducethepotential
forinjury,complywiththesesafetyinstructions
andalwayspayattentiontothesafetyalert
symbol,whichmeans:
Caution , W ar ning ,or
Danger —personalsafetyinstruction.Failureto
complywiththeinstructionmayresultinpersonal
injuryordeath.
SafeOperatingPractices
Thisproductiscapableofamputatinghandsandfeet.
Alwaysfollowallsafetyinstructionstoavoidserious
injuryordeath.
Engineexhaustcontainscarbonmonoxide,an
odorless,deadlypoisonthatcankillyou.
Donotruntheengineindoorsorinanenclosed
area.
Training
•ReadtheOperator’sManualandothertraining
material.Iftheoperator(s)ormechanic(s)can
notreadEnglish,itistheowner’sresponsibilityto
explainthismaterialtothem.
•Becomefamiliarwiththesafeoperationofthe
equipment,operatorcontrols,andsafetysigns.
•Alloperatorsandmechanicsshouldbetrained.The
ownerisresponsiblefortrainingtheusers.
•Neverletchildrenoruntrainedpeopleoperateor
servicetheequipment.Localregulationsmayrestrict
theageoftheoperator.
•Theowner/usercanpreventandisresponsiblefor
accidentsorinjuriesoccurringtohimselforherself,
otherpeopleorproperty.
Preparation
•Evaluatetheterraintodeterminewhataccessories
andattachmentsareneededtoproperlyand
safelyperformthejob.Onlyuseaccessoriesand
attachmentsapprovedbythemanufacturer.
•Wearappropriateclothingincludinghardhat,
safetyglasses,longpants,safetyshoes,andhearing
protection.Longhair,looseclothingorjewelrymay
gettangledinmovingparts.
•Inspecttheareawheretheequipmentistobeused
andremoveallobjectssuchasrocks,toys,andwire
whichcanbethrownbythemachine.
•Useextracarewhenhandlinggasolineandother
fuels.Theyareammableandvaporsareexplosive.
–Useonlyanapprovedcontainer
–Neverremovethegascaporaddfuelwiththe
enginerunning.Allowtheenginetocoolbefore
refueling.Donotsmoke.
–Neverrefuelordrainthemachineindoors.
•Checkthattheoperatorpresencecontrols,safety
switches,andshieldsareattachedandfunctioning
properly.Donotoperateunlesstheyarefunctioning
properly.
Operation
•Neverrunanengineinanenclosedarea.
•Onlyoperateingoodlight,keepingawayfromholes
andhiddenhazards.
•Besurealldrivesareinneutralandtheparkingbrake
isengagedbeforestartingtheengine.Onlystartthe
enginefromtheoperator’sposition.
•Slowdownanduseextracareonhillsides.Besure
totravelintherecommendeddirectiononhillsides.
Turfconditionscanaffectthemachine’sstability.
•Slowdownandusecautionwhenmakingturnsand
whenchangingdirectionsonslopes.
•Neveroperatewiththeguardsnotsecurelyinplace.
Besureallinterlocksareattached,adjustedproperly,
andfunctioningproperly.
•Donotchangetheenginegovernorsettingor
overspeedtheengine.
•Stoponlevelground,lowertheboom,disengage
thetrencherhydraulics,engagetheparkingbrake,
andshutofftheenginebeforeleavingtheoperator’s
positionforanyreason.
•Keephandsandfeetawayfromthemovingchain,
diggingteeth,andspoilsauger.
•Lookbehindanddownbeforebackinguptobesure
ofaclearpath.
•Nevercarrypassengersandkeeppetsandbystanders
away.
•Slowdownandusecautionwhenmakingturnsand
crossingroadsandsidewalks.
•Donotoperatethemachineundertheinuenceof
alcoholordrugs.
4

•Usecarewhenloadingorunloadingthemachine
intoatrailerortruck.
•Usecarewhenapproachingblindcorners,shrubs,
trees,orotherobjectsthatmayobscurevision.
•Ensurethattheareaisclearofotherpeoplebefore
operatingthemachine.Stopthemachineifanyone
entersthearea.
•Neverleavearunningmachineunattended.Always
lowertheboom,stoptheengine,settheparking
brake,andremovethekeybeforeleaving.
•Neverjerkthecontrols;useasteadymotion.
•Watchfortrafcwhenoperatingnearorcrossing
roadways.
•Donottouchpartswhichmaybehotfrom
operation.Allowthemtocoolbeforeattemptingto
maintain,adjust,orservice.
•Ensurethatyouoperatethemachineinareaswhere
therearenoobstaclesincloseproximitytothe
operator.Failuretomaintainadequatedistancefrom
trees,walls,andotherbarriersmayresultininjury
asthemachinebacksupduringoperationifthe
operatorisnotattentivetothesurroundings.Only
operatetheunitinareaswherethereissufcient
clearancefortheoperatortosafelymaneuverthe
product.
•Beforedigging,havetheareamarkedfor
undergroundutilities,anddonotdiginmarkedareas.
•Locatethepinchpointareasmarkedonthemachine
andkeephandsandfeetawayfromtheseareas.
SlopeOperation
Slopesareamajorfactorrelatedtoloss-of-controland
tip-overaccidents,whichcanresultinsevereinjuryor
death.Allslopesrequireextracaution.
•Donotoperatethemachineonhillsidesorslopes
exceedingtheanglesrecommendedinthefollowing
table.
ModelFrontFacing
Uphill
RearFacing
Uphill
SideFacing
Uphill
2297015°14°19°
2297113°14°19°
Note:SeealsotheSlopeChart,page7.
•Operateupanddownslopeswiththefrontend
ofthemachineuphill.
•Removeobstaclessuchasrocks,treelimbs,etc.
fromtheworkarea.Watchforholes,ruts,orbumps,
asuneventerraincouldoverturnthemachine.Tall
grasscanhideobstacles.
•UseonlyToro-approvedaccessories.Accessoriescan
changethestabilityandtheoperatingcharacteristics
ofthemachine.Warrantymaybevoidedifusedwith
unapprovedaccessories.
•Keepallmovementsonslopesslowandgradual.Do
notmakesuddenchangesinspeedordirection.
•Avoidstartingorstoppingonaslope.Ifthemachine
losestraction,proceedslowly,straightdownthe
slope.
•Avoidturningonslopes.Ifyoumustturn,turn
slowlyandkeeptheheavyendofthemachineuphill.
•Donotoperateneardrop-offs,ditches,or
embankments.Themachinecouldsuddenlyturn
overifatrackgoesovertheedgeofaclifforditch,
orifanedgecavesin.
•Donotoperateonwetgrass.Reducedtractioncould
causesliding.
•Donotparkthemachineonahillsideorslope
withoutloweringtheboomtotheground,setting
theparkingbrake,andchockingthetracks.
MaintenanceandStorage
•Disengagethetrencherhydraulics,lowertheboom,
settheparkingbrake,stoptheengine,andremove
thekey.Waitforallmovementtostopbefore
adjusting,cleaning,orrepairing.
•Cleandebrisfromthechain,diggingteeth,boom,
trencherhead,drives,mufers,andenginetohelp
preventres.Cleanupoilorfuelspillage.
•Lettheenginecoolbeforestoringanddonotstore
nearame.
•Donotstorefuelnearamesordrainindoors.
•Parkthemachineonlevelground.Neverallow
untrainedpersonneltoservicethemachine.
•Usejackstandstosupportcomponentswhen
required.
•Carefullyreleasepressurefromcomponentswith
storedenergy.
•Disconnectthebattery(model22971only)or
removethesparkplugwiresbeforemakingany
repairs.Disconnectthenegativeterminalrst
andthepositivelast.Reconnectpositiverstand
negativelast.
•Keephandsandfeetawayfrommovingparts.If
possible,donotmakeadjustmentswiththeengine
running.
5

•Keepallpartsingoodworkingconditionandall
hardwaretightened.Replaceallwornordamaged
decals.
•Keepnutsandboltstight.Keepequipmentingood
condition.
•Nevertamperwithsafetydevices.
•Keepthemachinefreeofgrass,leaves,orother
debrisbuild-up.Cleanupoilorfuelspillage.Allow
themachinetocoolbeforestoring.
•Useextracarewhenhandlinggasolineandother
fuels.Theyareammableandvaporsareexplosive.
–Useonlyanapprovedcontainer.
–Neverremovethegascaporaddfuelwhen
theengineisrunning.Allowtheenginetocool
beforerefueling.Donotsmoke.
–Neverrefuelthemachineindoors.
–Neverstorethemachineorfuelcontainerinside
wherethereisanopename,suchasneara
waterheaterorfurnace.
–Neverllacontainerwhileitisinsideavehicle,
trunk,pick-upbed,oranysurfaceotherthanthe
ground.
–Keepcontainernozzleincontactwiththetank
duringlling.
•Stopandinspecttheequipmentifyoustrikean
object.Makeanynecessaryrepairsbeforerestarting.
•UseonlygenuineTororeplacementpartstoensure
thatoriginalstandardsaremaintained.
•Batterysafety(model22971only):
–Chargebatteriesinanopen,wellventilated
area,awayfromsparkandames.Unplugthe
chargerbeforeconnectingordisconnectingit
fromthebattery.Wearprotectiveclothingand
useinsulatedtools.
–Batteryacidispoisonousandcancauseburns.
Avoidcontactwithskin,eyes,andclothing.
Protectyourface,eyes,andclothingwhen
workingwithabattery.
–Batterygasescanexplode.Keepcigarettes,
sparksandamesawayfromthebattery.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressurehydraulic
uid.Usecardboardorpapertondhydraulic
leaks;neveruseyourhands.Hydraulicuidescaping
underpressurecanpenetrateskinandcauseinjury
requiringsurgerywithinafewhoursbyaqualied
surgeonorgangrenemayresult.
SoundPressure
Thisunithasamaximumsoundpressurelevelatthe
operator’searof90dBA,basedonmeasurementsof
identicalmachinesperISO11201.
SoundPower
Thisunithasaguaranteedsoundpowerlevelof105
dBA,basedonmeasurementsofidenticalmachinesper
EN6395.
Vibration
Thisunitdoesnotexceedahand/armvibrationlevelof
2.5m/s2,basedonmeasurementsofidenticalmachines
perEN1033.
6

SlopeChart
7

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaof
potentialdanger.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.
6.Explosionhazard;shockhazard—donotusemachinenear
buriedutilitylines;contacttheproperagenciesbeforedigging.
2.Explosionhazard,fueling—stoptheengineandextinguish
allameswhenfueling.
7.Boomelevation
3.Tipping/crushinghazard—lowerthetrencherheadwhen
operatingonslopes.
8.Lowertheboom
4.Warning—stayawayfrommovingparts;waitforallmoving
partstostop
9.Raisetheboom
5.Warning—lowertheboom,engagetheparkingbrakeand
stoptheengine,removetheignitionkey,beforeleavingthe
machine.
99-9952
1.Cuttinghazard,chainandauger—stayawayfrommovingpartsandkeepbystandersawayfromthemachine.
2.Warning—stoptheengineandremovethekeybeforepreformingandmaintenanceorrepairs.
3.Explosionand/orelectricshockhazard—donotdiginareaswithburiedgasorpowerlines.
9

115-4020
1.Turnright3.Reverse
2.Forward4.Turnleft
93-7814
1.Entanglementhazard,belt—stayawayfrommovingparts.
93-6686
1.Hydraulicoil
2.ReadtheOperator’sManual.
93-9084
1.Liftpoint2.Tie-downpoint
100-4650
1.Crushinghazardofhand—keepbystandersasafedistance
fromthemachine.
2.Crushinghazardoffoot—keepbystandersasafedistance
fromthemachine.
107-8495
1.Parkingbrake
BatterySymbols
Someorallofthesesymbolsareonyourbattery(Model
22971only)
1.Explosionhazard6.Keepbystandersasafe
distancefromthebattery.
2.Nore,opename,or
smoking.
7.Weareyeprotection;
explosivegasescan
causeblindnessandother
injuries
3.Causticliquid/chemical
burnhazard
8.Batteryacidcancause
blindnessorsevereburns.
4.Weareyeprotection9.Flusheyesimmediately
withwaterandgetmedical
helpfast.
5.ReadtheOperator’s
Manual.
10.Containslead;donot
discard.
10

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
Boom1
1Chain1Installtheboomandchain.
2Nopartsrequired–Checktheuidlevels.
3Nopartsrequired–Chargethebattery.
1
InstallingtheBoomandChain
Partsneededforthisprocedure:
1Boom
1Chain
Procedure
Important:Thereareseveralboomandchainsize
congurationsavailable.RefertoyouAuthorized
ServiceDealertoobtaintheappropriateboomand
chaintomeetyourrequirements.
1.Stoptheengineandremovethekey.
2.Removetheboltandnutsecuringthespoilsauger
andremovetheauger(Figure3).Savetheboltand
nutforfutureuse.
Figure3
1.Spoilsauger6.Adjustingbolt
2.Boom7.Jamnut
3.Bolts8.Armonthedrivehead
4.Doublewasher9.Drivesprocket
5.Nuts
3.Removethe2bolts,nuts,anddoublewashersfrom
thesidesoftheboom(Figure3).
4.Loosentheadjustingboltandjamnut(Figure3).
5.Slidetheboomoverthearmonthedrivehead.
6.Installthe2bolts,nuts,anddoublewashersremoved
instep3throughtheboomandarm,butdonot
tightenthem.
7.Ifthechainisnotconnected,connectthelinksby
pressingorhammeringtheclevispinsuppliedwith
thechainthroughthelinks.
Important:Toavoidbendingthechainlinks,
placeblocksunderandbetweenthelinkswhen
hammeringtheclevispinthrough.
8.Securetheclevispinwiththecotterpinsupplied
withthechain.
11

9.Loopthediggingchainovertheaugerdriveshaftand
ontothedrivesprocket,ensuringthatthedigging
teethpointforwardontheupperspan.
10.Settheupperspanofthechainintoplaceonthe
trencherboom,thenwrapthechainaroundthe
rollerattheendoftheboom.
11.Threadtheadjustmentboltintotheboomandturn
itinuntilthereis1-1/2to2-1/2inches(3.8to6.3
cm)ofslackinthechainonthebottomspan.
12.Threadthejamnutdowntheadjustingboltand
tightenitsecurelyagainsttheboom.
13.Torquethe2boltsandnutssecuringtheboomto
135to165ft-lb(183to223N-m).
14.Installthespoilsaugerusingtheboltandnutyou
removedpreviously.
15.Torquetheboltandnutto75ft-lb(101N-m).
2
CheckingFluidLevels
NoPartsRequired
Procedure
Beforestartingtheengineforthersttime,checkthe
engineoilandhydraulicuidlevels;refertoOperation
formoreinformation.
3
ChargingtheBattery(Model
22971Only)
NoPartsRequired
Procedure
Chargethebattery;refertoServicingtheBatteryin
Maintenanceformoreinformation.
ProductOverview
Figure4
1.Control
panel
4.Chain
guard
7.Boom10.Reverse
safety
plate
2.Engine5.Chain8.Trencher
head
3.Spoils
auger
6.Digging
teeth
9.Track
Controls
Becomefamiliarwithallthecontrols(Figure5)before
youstarttheengineandoperatethemachine.
G007801
5678
34 12
Figure5
1.Tractioncontrol5.Throttlelever
2.Boomelevationlever6.Chokelever
3.Trenchercontrollever7.Keyswitch
4.Referencebar8.Hourmeter(optional
accessoryonmodel
22970)
KeySwitch,Model22970
Thekeyswitchhas2positions:offandrun.
Tostarttheengine,rotatethekeytotherunposition,
thenpulltherecoilhandleontheengine.
Tostoptheengine,rotatethekeytotheoffposition.
12

KeySwitch,Model22971
Thekeyswitchhasthreepositions:off,run,andstart.
Tostarttheengine,rotatethekeytothestartposition.
Releasethekeywhenenginestartsanditwillmove
automaticallytotherunposition.
Tostoptheengine,rotatethekeytotheoffposition.
ThrottleLever
Movethecontrolforwardtoincreasetheenginespeed
andrearwardtodecreasespeed.
ChokeLever
Beforestartingacoldengine,movethechokelever
forward.Aftertheenginestarts,regulatethechoketo
keeptheenginerunningsmoothly.Assoonaspossible,
movethechokeleverallthewayrearward.
Note:Awarmenginerequireslittleornochoking.
HourMeter
Whentheengineisoff,thehourmeterdisplaysthe
numberofhoursofoperationthathavebeenlogged
onthemachine.
Note:Thehourmeterisanoptionalaccessoryon
model22970.
ReferenceBar
Whendrivingthemachine,usethereferencebarasa
handleandaleveragepointforcontrollingthetraction
controlandthetrenchercontrollever.Toensure
smooth,controlledoperation,donottakebothhands
offofthereferencebarwhileoperatingthemachine.
TractionControl
Figure6
1.Referencebar(doesnotmovetogiveyouareferencepoint
andaxedhandletoholdwhileoperatingthetractionunit)
2.Tractioncontrol(movestocontrolthemachine)
•Tomoveforward,movethetractioncontrolforward
(Figure7).
Figure7
•Tomoverearward,movethetractioncontrol
rearward(Figure8).Whenreversing,lookbehind
forobstructionsandkeepyourhandsonthe
referencebar(Figure6).
Figure8
•Toturnright,rotatethetractioncontrolclockwise
(Figure9).
G008131
Figure9
•Toturnleft,rotatethetractioncontrol
counterclockwise(Figure10).
13

G008132
Figure10
•Tostop,releasethetractioncontrol(Figure6).
Note:Thefartheryoumovethetractioncontrolin
anydirection,thefasterthemachinewillmoveinthat
direction.
BoomElevationLever
Tolowertheboom,slowlymovetheleverforward
(Figure11).
Toraisetheboom,stopthechainandslowlymovethe
leverrearward(Figure11).
Note:Theboomwillnotraisewhilethechainis
runningatfullspeed.Movethetrenchercontrolaway
fromthereferencebarwhenraisingtheboom.
Figure11
1.Lowertheboom2.Raisetheboom
BoomElevationLock
Theboomelevationlocksecurestheboomelevation
leversothatyoucannotpushitforward.Thishelpsto
ensurethatnoonewillaccidentallylowertheboom
duringmaintenance.Securetheboomwiththelock
anytimeyouneedtostopthemachinewiththeboom
raised.
Tosetthelock,liftuponitsoitclearstheholeinthe
controlpanelandswingittotherightinfrontofthe
boomelevationlever,pushingitdownintothelocked
position(Figure12).
Figure12
1.Boomelevationlever2.Boomelevationlock
TrencherControlLever
Todigwiththetrencher,rotatetheleverrearwardand
pullitdowntothereferencebar(Figure13,number1).
Toreversethetrencherhead,rotatetheleverrearward,
thenmoveitleftintotheupperslot(Figure13,number
2).
Ifyoureleasethelever,itwillautomaticallyreturnto
theneutralposition(Figure13,number3),stoppingthe
chain.
Figure13
1.Forward3.Neutral
2.Reverse
14

ParkingBrakeLever
•Tosettheparkingbrake,pullthebrakelever
rearwardandup(Figure14).
•Toreleasethebrake,pulltheleverrearwardandthen
down(Figure14).
G007804
1
Figure14
1.Parkingbrakelever(inthereleasedposition)
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
Width33.8inches(86cm)
Length,with24inch(70
cm)boom
82.5inches(209.5cm)
Length,with36inch(91.4
cm)boom
92.6inches(235cm)
Height46inches(117cm)
Weight(model22970)*1100lb(499Kg)
Weight(model22971)*1185lb(538Kg)
*A36inch(91.4cm)boomandchainwilladdabout60lbtothelistedweight.
Attachments/Accessories
AselectionofToroapprovedattachmentsand
accessoriesareavailableforusewiththemachineto
enhanceandexpanditscapabilities.Contactyour
AuthorizedServiceDealerorDistributororgoto
www.Toro.comforalistofallapprovedattachments
andaccessories.
Operation
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Important:Beforeoperating,checkthefueland
oillevel,andremovedebrisfromthemachine.
Also,ensurethattheareaisclearofpeopleand
debris.Youshouldalsoknowandhavemarkedthe
locationsofallutilitylines.
AddingFuel
Useunleadedgasoline(87pumpoctaneminimum).
Leaded,regulargasolinemaybeusedifunleadedisnot
available.
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areor
explosionfromgasolinecanburnyouand
othersandcandamageproperty.
•Fillthefueltankoutdoors,inanopenarea,
whentheengineiscold.Wipeupany
gasolinethatspills.
•Neverllthefueltankinsideanenclosed
trailer.
•Donotllthefueltankcompletelyfull.Add
gasolinetothefueltankuntilthelevelis1/4
to1/2inch(6to13mm)belowthebottomof
thellerneck.Thisemptyspaceinthetank
allowsgasolinetoexpand.
•Neversmokewhenhandlinggasoline,and
stayawayfromanopenameorwhere
gasolinefumesmaybeignitedbyaspark.
•Storegasolineinanapprovedcontainerand
keepitoutofthereachofchildren.Never
buymorethana30-daysupplyofgasoline.
•Donotoperatewithoutentireexhaust
systeminplaceandinproperworking
condition.
15

Incertainconditionsduringfueling,static
electricitycanbereleasedcausingaspark
whichcanignitethegasolinevapors.Are
orexplosionfromgasolinecanburnyouand
othersandcandamageproperty.
•Alwaysplacegasolinecontainersonthe
groundawayfromyourvehiclebeforelling.
•Donotllgasolinecontainersinsidea
vehicleoronatruckortrailerbedbecause
interiorcarpetsorplastictruckbedliners
mayinsulatethecontainerandslowtheloss
ofanystaticcharge.
•Whenpractical,removegas-powered
equipmentfromthetruckortrailerand
refueltheequipmentwithitswheelsonthe
ground.
•Ifthisisnotpossible,thenrefuelsuch
equipmentonatruckortrailerfroma
portablecontainer,ratherthanfroma
gasolinedispensernozzle.
•Ifagasolinedispensernozzlemustbeused,
keepthenozzleincontactwiththerimof
thefueltankorcontaineropeningatall
timesuntilfuelingiscomplete.
Important:Donotusemethanol,gasoline
containingmethanol,orgasoholcontainingmore
than10%ethanolbecausethefuelsystemcouldbe
damaged.Donotmixoilwithgasoline.
UsingStabilizer/Conditioner
Useafuelstabilizer/conditionerinthemachineto
providethefollowingbenets:
•Keepsgasolinefreshduringstorageof90daysor
less.Forlongerstorageitisrecommendedthatthe
fueltankbedrained.
•Cleanstheenginewhileitruns
•Eliminatesgum-likevarnishbuildupinthefuel
system,whichcauseshardstarting
Important:Donotusefueladditivescontaining
methanolorethanol.
Addthecorrectamountofgasstabilizer/conditioner
tothegas.
Note:Afuelstabilizer/conditionerismosteffective
whenmixedwithfreshgasoline.Tominimizethe
chanceofvarnishdepositsinthefuelsystem,usefuel
stabilizeratalltimes.
FillingtheFuelTank
1.Parkthemachineonalevelsurface,lowerthe
boom,andstoptheengine.
2.Removethekeyandallowtheenginetocool.
3.Cleanaroundthefueltankcapandremoveit
(Figure15).
G007806
1
Figure15
1.Fueltankcap
4.Addunleadedgasolinetothefueltank,untilthe
levelis1/4to1/2inchbelowthebottomofthe
llerneck.
Important:Thisspaceinthetankallows
gasolinetoexpand.Donotllthefueltank
completelyfull.
5.Installthefueltankcapsecurely.
6.Wipeupanygasolinethatmayhavespilled.
CheckingtheEngineOilLevel
ServiceInterval:Beforeeachuseordaily
1.Parkthemachineonalevelsurface,lowerthe
boom,andstoptheengine.
2.Removethekeyandallowtheenginetocool.
3.Cleanaroundtheoildipstick(Figure16).
16

Figure16
1.Oilllerhole3.Fullmark
2.Oildipstick4.Addmark
4.Removethedipstickandwipetheendclean
(Figure16).
5.Slidethedipstickfullyintothedipsticktubewithout
threadingitintothellerneck(Figure16).
6.Pullthedipstickoutandlookattheend.The
oilshouldbebetweentheAddandFullmarks
(Figure16).
7.IftheoilisbelowtheAddmark,add10w30engine
oiltothellerhole,checkingthelevelfrequently
withthedipstick,untiltheoillevelreachestheFull
mark.
8.Replacethedipstick.
CheckingtheHydraulicFluid
Level
ServiceInterval:Every25hours
HydraulicTankCapacity:6USgallons(23l)
Use10W-30or15W-40detergent,dieselengineoil(API
serviceCH-4orhigher).
1.Parkthemachineonalevelsurfaceandlowerthe
boom.
2.Stoptheengine,removethekey,andallowthe
enginetocool.
3.Lookintotheglassbubbleontherightsideofthe
machine.Ifyoucannotseehydraulicuidinthe
bubble,continuethisproceduretoadduid.
G007808
1
Figure17
1.Hydraulicuidcheckbubble
4.Removethecoverplate;refertoRemovingthe
CoverPlate.
5.Cleantheareaaroundthellerneckofthehydraulic
tankandremovethecapandlterfromtheller
neckusingasocket(Figure18).
Figure18
1.Fillerneckcap2.Hydraulicuidlter
6.Ifthelevelislow,adduiduntilitisvisibleinthe
glassbubble.
7.Installthecapandlteronthellerneckandtorque
boltontopto110to140inch-lb(13to15.5N-m).
17

StartingandStoppingthe
Engine
StartingtheEngine
1.MovethethrottlelevermidwaybetweenSlowand
Fastpositions(Figure19).
G007809
123
Figure19
1.Throttlelever3.Key
2.Chokelever
2.MovethechokelevertotheOnposition(Figure19).
Note:Awarmorhotenginemaynotrequire
choking.
3.Starttheengineasfollowsforyourmodel:
•Formodel22970,turnthekeytotheOn
positionthenpulltherecoilhandletostartthe
engine(Figure20).
G007810
1
Figure20
1.Recoilhandle
•Formodel22971,turnthekeytotheOn
position(Figure19).Whentheenginestarts,
releasethekey.
Important:Donotengagethestarterfor
morethan10secondsatatime.Iftheengine
failstostart,allowa30secondcool-down
periodbetweenattempts.Failuretofollow
theseinstructionscanburnoutthestarter
motor.
4.GraduallymovethechokelevertotheOffposition
(Figure19).Iftheenginestallsorhesitates,engage
thechokeagainuntiltheenginewarmsup.
5.Movethethrottlelevertothedesiredsetting
(Figure19).
Important:Iftheengineisrunathighspeeds
whenthehydraulicsystemiscold(i.e.,when
theambientairtemperatureisnearfreezingor
lower),hydraulicsystemdamagecouldoccur.
Whenstartingtheengineincoldconditions,
allowtheenginetoruninthemiddlethrottle
positionfor2to5minutesbeforemovingthe
throttletofast(rabbit).
Note:Iftheoutdoortemperatureisbelow
freezing,storethemachineinagaragetokeepit
warmerandaidinstarting.
StoppingtheEngine
1.MovethethrottlelevertotheSlowposition
(Figure19).
2.Lowertheboom(Figure21).
Figure21
3.Turnthekeyoff(Figure19).
Note:Iftheenginehasbeenworkinghardor
ishot,letitidleforaminutebeforeturningthe
ignitionkeyoff.Thishelpscooltheenginebefore
itisstopped.Inanemergency,theenginemaybe
stoppedimmediately.
4.Removethekey.
18

StoppingtheMachine
Tostopthemachine,releasethetractioncontrol,move
thethrottlelevertoslow(turtle),lowertheboomto
theground,andstoptheengine.Settheparkingbrake
andremovethekey.
Achildoruntrainedbystandercouldattemptto
operatethemachineandbeinjured.
Removethekeyfromtheswitchwhenleaving
themachine,evenifjustforafewseconds.
MovingaNon-functioning
Machine
Important:Donottoworpullthemachine
withoutrstopeningthetowvalves,orthe
hydraulicsystemwillbedamaged.
1.Stoptheengine.
2.Removethebottomshield.
3.Usingawrench,turnthetowvalvesonthehydraulic
pumpstwicecounter-clockwise(Figure22).
G007816
1
Figure22
1.Towvalves
4.Installthebottomshieldandtowthemachineas
required.
5.Whenthemachinehasbeenrepaired,closethetow
valvesbeforeoperatingit.
DiggingaTrench
1.Starttheengine,raisetheboom,setthethrottle
levertotheFastposition,andmovethemachine
overtheareatobetrenched.
2.Pullthetrenchercontrollevertothereferencebar
toengagethetrencher.
3.Slowlylowertheboomandchainintotheground.
Note:Toachievethemaximumdepth,youmay
needtolowertheboomasfarintothegroundas
itwillgowiththechainrunning.Then,stopthe
chainandloweritfully.Startthechainagainand
resumeoperation.
4.Oncethetrencherboomisinthegroundata45
to60degreeangle,slowlymovethetractionunit
rearwardtoextendthetrench.
Note:Ifyoumovetoofast,thetrencherwillstall.
Ifitstalls,raiseitslightly,slowlydriveforward,or
reversethechaindirectionmomentarily.
5.Whennished,raisetheboomoutofthetrench,
thenstopthetrencher.
SecuringtheMachinefor
Transport
Whentransportingthemachineonatrailer,alwaysuse
thefollowingprocedure:
Important:Donotoperateordrivethemachine
onroadways.
1.Stoptheengine.
2.Lowertheboom.
3.Securethemachinetothetrailerwithchainsor
strapsusingthetie-down/liftloopsatthefrontand
rearofthemachine(Figure23andFigure24).Refer
toyourlocalordinancesfortrailerandtie-down
requirements.
Figure23
1.Fronttie-downloop
19

1
G007818
Figure24
1.Reartie-downloops
LiftingtheMachine
Youcanliftthemachineusingthetie-down/liftloops
asliftpoints(Figure23andFigure24).
OperatingTips
•Cleantheareaoftrash,branchesandrocksbefore
trenchingtopreventequipmentdamage.
•Alwaysbegintrenchingwiththeslowestground
speedpossible.Increasespeedifconditionspermit.
Ifthechainspeedslowsdown,reducegroundspeed
tokeepthechainmovingatitsfastestrate.Donot
spinthetrackswhiletrenching.
•Alwaysusefullthrottle(maximumenginespeed)
whentrenching.
•Alwaystrenchbackwards(i.e.,inreverse).
•Trenchata45to60degreeangleforbestresults.
•Youwillbeabletodigatrenchfasterbycontrolling
thedepthwithperiodicadjustmentsoftheboom.
•Ifthetrencherbindsinthesoil,reversethechain
direction.Oncethechainisloose,changechain
directionsandcontinuetrenching.
•Ifyouneedthenishedtrenchtobecleanerthan
whatispossiblewiththetrencher,youcanpurchase
acrumberfromyourdealer.Thecrumbermounts
ontothetrencherheadandscrapesthetrenchclean
asyoudig.
•Toimprovethequalityoftrencheslessthan24inch
(60.9cm)deep,usea24inch(60.9cm)boom.
•Usethecorrectchainforthegroundconditions,as
listedinthefollowingtable:
SoilTypeRecommendedChainType
SandySoilchain(re-congurewith
extrateethforaddeddigging
speed;refertoyourAuthorized
ServiceDealer)
SandyLoam/Loam/Loamy
Clay
Soilchain
Wet,stickyclaySoilchain
Hardsoils:dryclayand
compactedsoils
Combinationchain
Rockysoil/gravelRockchain
20