
FormNo.3425-123RevA
BoreDriveAttachment
TRXTrencher
ModelNo.22978—SerialNo.310000001andUp
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3425-123*A

WARNING
CALIFORNIA
Proposition65Warning
Useofthisproductmaycauseexposure
tochemicalsknowntotheStateof
Californiatocausecancer,birthdefects,
orotherreproductiveharm.
Introduction
ThismachineisanattachmentforaTRXtrencher
intendedforusebylandscapeprofessionalsand
rentalequipmentoperators.Itisdesignedforboring
holesthroughsoilunderdrivesandsidewalksandfor
pullingcablingandpipingthroughtheboredholes.
Itisnotdesignedforboringthroughrockorother
non-soildebris.Usingthisproductforpurposesother
thanitsintendedusecouldprovedangeroustoyou
andbystanders.
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoid
injuryandproductdamage.Youareresponsiblefor
operatingtheproductproperlyandsafely .
Visitwww.T oro.comformoreinformation,including
safetytips,trainingmaterials,accessoryinformation,
helpndingadealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafety-alertsymbol
(Figure2),whichsignalsahazardthatmaycause
seriousinjuryordeathifyoudonotfollowthe
recommendedprecautions.
g000502
Figure2
Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
Contents
Safety.......................................................................3
GeneralSafety...................................................3
BoreDriveSafety...............................................3
HydraulicSystemSafety.....................................4
SafetyandInstructionalDecals..........................4
Setup........................................................................5
1PreparingtheMachine.....................................5
2DisconnectingtheExistingHydraulic
Hoses..............................................................6
3InstallingtheHydraulicManifold.......................9
4ConnectingtheHydraulicHoses......................9
5CheckingtheHydraulics.................................11
6AssembletheRodGuide...............................12
7ConnectingtheDriveHeadtothe
Trencher.......................................................12
ProductOverview...................................................13
Specications..................................................13
Operation................................................................14
InstallinganAccessory.....................................14
RemovinganAccessory...................................14
BoringaHole....................................................14
Storage...................................................................16
1.Locationofthemodelandserialnumbers
©2019—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Figure1
g278521
Contactusatwww.Toro.com.
2
PrintedintheUSA
AllRightsReserved

Safety
DANGER
Theremaybeburiedutilitylinesinthework
area.Diggingintothemmaycauseashock
oranexplosion.
Havethepropertyorworkareamarkedfor
buriedlinesanddonotdiginmarkedareas.
Contactyourlocalmarkingserviceorutility
companytohavethepropertymarked(for
example,intheUS,call811orinAustralia,
call1100forthenationwidemarkingservice).
GeneralSafety
Thisproductiscapableofamputatinghandsandfeet.
Alwaysfollowallsafetyinstructionstoavoidserious
injuryordeath.Usingthisproductforpurposesother
thanitsintendedusecouldprovedangeroustoyou
andbystanders.
•Havethepropertyorworkareamarkedforburied
linesandotherobjects,anddonotdiginmarked
areas.
•Keepyourhandsandfeetawayfrommoving
teeth,auger,orotherparts.
•Keepbystandersandpetsawayfromthemachine.
•ReadandunderstandthecontentofthisOperator’s
Manualbeforestartingtheengine.
•Neverallowchildrenoruntrainedpeopleto
operatethemachine.
•Donotoperatethemachinewithouttheguards
andothersafetyprotectivedevicesinplaceand
workingonthemachine.
•Useyourfullattentionwhileoperatingthe
machine.Donotengageinanyactivitythat
causesdistractions;otherwise,injuryorproperty
damagemayoccur.
•Stopthemachine,shutofftheengine,andremove
thekeybeforeservicing,fueling,orunclogging
themachine.
BoreDriveSafety
•Rotatingrodandbitscanentanglelooseclothing,
hands,arms,legs,andfeet,causingdeathor
seriousinjury.
–Keepatleast3m(10ft)fromrotatingparts,
unlessyouareoperatingtherodguidetool.
–Useonlytherodguidetooltostarttherodand
boringbit.
–Keepextremitiesandotherpartsofyourbody
orclothingawayfromrotatingparts.
–Neverstraddleorstandontherodwhenthe
engineisrunning.
–Donotwearlooseclothingorjewelrywhile
operatingorassistingwiththeboringunit.
–Usecautionwhenstandingnexttotrenches
andbeawareofweakorcollapsingtrench
walls.
–Alwaysshutofftheengineandremovethekey
beforechangingaccessories.
–Donotservicetheattachmentunlessrod
rotationisstopped,thehydraulicsleverisin
neutral,andtheengineisstopped.
–Donotuseboltsorpinsinplaceofpushbutton
connectors.
•Hydrauliccouplers,hydrauliclines/valves,and
hydraulicuidmaybehotandcanburnyouifyou
touchthem.
–Weargloveswhenoperatingthehydraulic
couplers.
–Allowthetractionunittocoolbeforetouching
hydrauliccomponents.
–Donottouchhydraulicuidspills.
•Alwaysuse2peopletooperatetheattachment,1
tooperatethetractionunitandtheothertoguide
theboringunitwiththeguidetool.
•Lightningcancausesevereinjuryordeath.If
lightningisseenorthunderisheardinthearea,do
notoperatethemachine;seekshelter.
Improperlyusingormaintainingthismachinecan
resultininjury.Toreducethepotentialforinjury,
complywiththesesafetyinstructionsandalwayspay
attentiontothesafety-alertsymbol,whichmeans
Caution,Warning,orDanger—personalsafety
instruction.Failuretocomplywiththeseinstructions
mayresultinpersonalinjuryordeath.
Youcanndadditionalsafetyinformationwhere
neededthroughoutthismanual.
3

HydraulicSystemSafety
SafetyandInstructional
•Seekimmediatemedicalattentionifuidisinjected
intoskin.Injecteduidmustbesurgicallyremoved
withinafewhoursbyadoctor.
•Ensurethatallhydraulic-uidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthigh-pressurehydraulic
uid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
Decals
Safetydecalsandinstructionsare
easilyvisibletotheoperatorandare
locatednearanyareaofpotential
danger.Replaceanydecalthatis
damagedormissing.
decal117-8855
117-8855
1.Boredriveoperation2.Trencheroperation
1.Warning—readthe
Operator’sManual.
2.Entanglementhazard,
shaft—keepbystanders
away.
4
decal117-9952
117-9952
3.Explosionhazard;
electricalshock
hazard—donotoperate
ifpowerlinesmaybe
present.

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescription
1
2
3
4
5
6
Nopartsrequired
Nopartsrequired
Manifoldbracket
Carriagebolt(5/16x1inch)
Locknut(5/16inch)
Hydraulicmanifoldassembly
Hexsocket-headbolt(5/16x3-1/4
inches)
Hydraulichosewithshortelbowtting
(TRX-16,TRX-20,andTRX-26only)
Hydraulichosewithlongelbowtting
(TRX-16,TRX-20,andTRX-26only)
Longhydraulichosewithstraightttings
Shorthydraulichosewithstraightttings
(TRX-250andTRX-300only)
Nopartsrequired
Rodguide,lowerhalf
Rodguide,upperhalf
Rollpin1
Qty.
Use
–
–
1
1
3
1
2
1
1
2
2
–
1
1
Preparethemachine.
Disconnecttheexistinghydraulichoses.
Installthehydraulicmanifold.
Connectthehydraulichoses.
Checkthehydraulics
Assembletherodguide.
7
Determinetheleftandrightsidesofthemachinefrom
thenormaloperatingposition.
Drivehead1
1
PreparingtheMachine
NoPartsRequired
Procedure
1.Parkthemachineonalevelsurface,engagethe
parkingbrake,andlowertheboom.
2.Shutofftheengineandremovethekey.
3.Allowthemachinetocoolfully.
Connectthedriveheadtothetrencher.
5

2
DisconnectingtheExisting
HydraulicHoses
NoPartsRequired
TRX-16,TRX-20,andTRX-26
Note:Thisprocedurecausessomehydraulicuid
leakage.Ensurethatyouperformitinanarea
equippedtocatchoreasilycleanspilledhydraulic
uid.
CAUTION
Hydrauliccouplers,hydrauliclines/valves,
andhydraulicuidmaybehot.Ifyoucontact
hotcomponents,youmaybeburned.
•Weargloveswhenoperatingthehydraulic
couplers.
3.Removethereferencebar(Figure4)
g011656
Figure4
1.Referencebar
4.Disconnectthespringfromthehydraulicslever
andremoveitasshowninFigure5.
•Allowthemachinetocoolbeforetouching
hydrauliccomponents.
•Donottouchhydraulicuidspills.
1.Movethehydraulicleverbackandforthafew
timestorelieveanypressureinthelines.
2.Removethetraction-controlhandle(Figure3).
g011657
Figure5
1.Hydraulicslever
1.Traction-controlhandle
g011655
Figure3
6