Toro 22470 User manual

FormNo.3353-890RevB
HighTorqueTrencherHeadand
HighSpeedTrencherHead
forCompactUtilityLoaders
ModelNo.22470—SerialNo.250000001andUp
ModelNo.22471—SerialNo.250000001andUp
Registeratwww.Toro.com.OriginalInstructions(EN)

Theremaybeburiedpower,gas,and/or
telephonelinesintheworkarea.Shockor
explosionmayoccurifyoudigintothem.
Havethepropertyorworkareamarkedfor
buriedlinesanddonotdiginmarkedareas.
Contactyourlocalmarkingserviceorutility
companytohavethepropertymarked(for
example,intheUnitedStates,call811forthe
nationwidemarkingservice).
Introduction
Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoidinjury
andproductdamage.Youareresponsibleforoperating
theproductproperlyandsafely.
YoumaycontactTorodirectlyatwww.Toro.comfor
productandaccessoryinformation,helpndinga
dealer,ortoregisteryourproduct.
Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready.Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.
G008933
1
Figure1
1.Modelandserialnumberlocation
ModelNo.
SerialNo.
Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafetyalertsymbol
(Figure2),whichsignalsahazardthatmaycauseserious
injuryordeathifyoudonotfollowtherecommended
precautions.
Figure2
1.Safetyalertsymbol
Thismanualalsouses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.
Contents
Introduction.................................................................2
Safety...........................................................................3
StabilityRatings....................................................4
SafetyandInstructionalDecals.............................5
Setup............................................................................6
1InstallingtheBoomandDigging
Chain...............................................................6
2InstallingtheSafetyBar......................................7
3InstallingtheSpoilsAuger..................................7
4CheckingtheBearingCaseLubeLevel................8
ProductOverview........................................................9
Specications.......................................................9
Attachments/Accessories.....................................9
Operation.....................................................................9
DiggingaTrench..................................................9
OffsettingtheTrencher........................................9
TransportingtheTrencheronaTrailer................10
OperatingTips...................................................10
Maintenance...............................................................11
RecommendedMaintenanceSchedule(s)................11
GreasingtheTrencher........................................11
ServicingtheBearingCaseLube.........................11
AdjustingDiggingChainTension.......................12
FlippingaWornBoom.......................................12
ReplacingtheDiggingTeeth...............................13
ReplacingtheDriveSprocket..............................13
Storage.......................................................................14
Troubleshooting.........................................................15
©2008—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA.
AllRightsReserved

Safety
Improperuseormaintenancebytheoperatoror
ownercanresultininjury.Toreducethepotential
forinjury,complywiththesesafetyinstructionsand
thoseinthetractionunit
Operator’ s Man ual .Always
payattentiontothesafetyalertsymbol,which
means Caution , W ar ning ,or Danger —personal
safetyinstruction.Failuretocomplywiththe
instructionmayresultinpersonalinjuryordeath.
Theremaybeburiedpower,gas,and/or
telephonelinesintheworkarea.Shockor
explosionmayoccurifyoudigintothem.
Havethepropertyorworkareamarkedfor
buriedlinesanddonotdiginmarkedareas.
Contactyourlocalmarkingserviceorutility
companytohavethepropertymarked(for
example,intheUnitedStates,call811forthe
nationwidemarkingservice).
Themovingteethandaugerwillseverelycut
hands,feet,orotherbodyparts.
•Keephands,feet,andanyotherpartofyour
bodyorclothingawayfrommovingteeth,
auger,orotherparts.
•Beforeadjusting,cleaning,repairing,or
inspectingthetrencher,lowerthetrencher
totheground,stoptheengine,waitforall
movingpartstostop,andremovethekey.
Whentheengineisoff,attachmentsinthe
raisedpositioncangraduallylower.Someone
nearbymaybepinnedorinjuredbythe
attachmentasitlowers.
Alwayslowertheattachmentlifteachtimeyou
shutoffthetractionunit.
Whengoingupordownhill,themachinecould
overturniftheheavyendistowardthedownhill
side.Someonemaybepinnedorseriously
injuredbythemachineifitoverturns.
Operateupanddownslopeswiththeheavyend
ofthemachineuphill.Anattachedtrencherwill
makethefrontendheavy.
Ifyoudonotfullyseattheattachmentlocking
pinsintheattachmentmountplateholes,the
attachmentcouldfalloffofthetractionunit
severelyinjuringtheoperatororbystanders.
•Ensurethatyoufullyseattheattachment
lockingpinsthroughtheholesinthe
attachmentmountplatebeforeliftingthe
attachment.
•Ensurethattheattachmentmountplateis
freeofanydirtordebristhatmayhinder
theconnectionofthetractionunittothe
attachment.
•Refertoyourtractionunit
Operator’ s
Man ual fordetailedinformationonsafely
connectinganattachmenttoyourtraction
unit.
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.Fluidinjected
intotheskinmustbesurgicallyremovedwithin
afewhoursbyadoctorfamiliarwiththisform
ofinjuryorgangrenemayresult.
•Keepyourbodyandhandsawayfrompin
holeleaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulic
leaks,neveruseyourhands.
3

Hydrauliccouplers,hydrauliclines/valves,and
hydraulicuidmaybehotandcanburnyouif
youtouchthem.
•Weargloveswhenoperatingthehydraulic
couplers.
•Allowthetractionunittocoolbefore
touchinghydrauliccomponents.
•Donottouchhydraulicuidspills.
StabilityRatings
Todeterminethedegreeofslopeyoucantraversewith
thetrencherinstalledonatractionunit,ndthestability
ratingforthehillpositionyouwanttotravelinthe
appropriatetablebelow ,thenndthedegreeofslope
forthesameratingandhillpositionintheStabilityData
sectionofthetractionunitOperator’sManual.
Exceedingthemaximumrecommendedslope
cancausethetractionunittotip,crushingyou
orbystanders.
Donotdrivethetractionunitonaslopesteeper
thanthemaximumrecommendedslope,as
determinedinthefollowingtablesandthe
tractionunit Operator’ s Man ual .
Important:Ifyouhaveatractionunitotherthana
TXcompactutilityloader,usethecounterweighton
thetractionunitwhenusingthetrencher.Failureto
usethecounterweightwillcausethetractionunitto
becomeunstable.
OrientationStabilityRating
FrontUphill
C
RearUphill
D
SideUphill
C
4

SafetyandInstructionalDecals
Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaof
potentialdanger.Replaceanydecalthatisdamagedorlost.
99-9952
1.Cuttinghazard,chainandauger—stayawayfrommovingpartsandkeepbystandersawayfromthemachine.
2.Warning—stoptheengineandremovethekeybeforepreformingandmaintenanceorrepairs.
3.Explosionand/orelectricshockhazard—donotdiginareaswithburiedgasorpowerlines.
99-9953
1.Explosionand/orelectricshockhazard—donotdiginareaswithburiedgasorpowerlines.
5

Setup
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
ProcedureDescriptionQty.Use
Boomassembly
1Chainassembly(soldseparately)Installtheboomanddiggingchain.
2Safetybar1Installthesafetybar.
3Nopartsrequired–Installthespoilsauger.
4Nopartsrequired–Checkthebearingcaselubelevel.
1
InstallingtheBoomand
DiggingChain
Partsneededforthisprocedure:
Boomassembly
Chainassembly(soldseparately)
Procedure
1.Raisethetrencherabout6inches(15cm)offofthe
ground.
2.Stoptheengineandremovethekey.
3.Removetheboltandnutsecuringthespoilsauger
andremovetheauger(Figure3).Savetheboltand
nutforfutureuse.
G008934
12
3
4
5
6
7
8
9
Figure3
1.Spoilsauger6.Jamnut
2.Drivesprocket7.Adjustingbolt
3.Armonthedrivehead8.Nuts
4.Doublewasher9.Boom
5.Bolts
4.Removethe2bolts,nuts,anddoublewashersfrom
thesidesoftheboom(Figure3).
5.Loosentheadjustingboltandjamnut(Figure3).
6.Slidetheboomoverthearmonthedrivehead.
7.Installthe2bolts,nuts,anddoublewashersremoved
previouslythroughtheboomandarm,butdonot
tightenthem.
8.Ifthechainisnotconnected,connectthelinksby
pressingorhammeringtheclevispinsuppliedwith
thechainthroughthelinks.
6

Important:Toavoidbendingthechainlinks,
placeblocksunderandbetweenthelinkswhen
hammeringtheclevispinthrough.
9.Securetheclevispinwiththecotterpinsupplied
withthechain.
10.Loopthediggingchainovertheaugerdriveshaftand
ontothedrivesprocket,ensuringthatthedigging
teethpointforwardontheupperspan.
11.Settheupperspanofthechainintoplaceonthe
trencherboom,thenwrapthechainaroundthe
rollerattheendoftheboom.
12.Threadtheadjustmentboltintotheboomandturn
itinuntilthereis1-1/2to2-1/2inches(3.8to6.3
cm)ofslackinthechainonthebottomspan.
13.Threadthejamnutdowntheadjustingboltand
tightenitsecurelyagainsttheboom.
14.Torquethe2boltsandnutssecuringtheboomto
135to165ft-lb(183to223N-m).
2
InstallingtheSafetyBar
Partsneededforthisprocedure:
1Safetybar
Procedure
1.Removethe3bolts,washers,andangenutsfrom
theupperleftcornerofthetrencherframe(Figure4).
1 2 3
4G008935
Figure4
1.Safetybar3.Bolts
2.Washers4.Flangenuts
2.Usingthefastenersremovedpreviously,installthe
trenchersafetybarasillustratedinFigure4.
3.Torquetheboltsandnutsto190to230ft-lb(257to
311N-m).
3
InstallingtheSpoilsAuger
NoPartsRequired
Procedure
Beforeoperatingthetrencher,installandpositionthe
spoilsaugertoworkcorrectlywiththediggingchain
congurationyouareusing.Failuretopositionthe
spoilsaugercorrectlymaydamagethetrencher.
1.Toinstallandpositiontheauger,usetheboltand
nutremovedfromtheaugerpreviouslytosecureit
inthecorrectholes,asdescribedinthefollowinglist:
Note:RefertoFigure5whenperformingthis
procedure.
•4inch(10cm)chainconguration
Usingtheholeclosesttotheaugerbladeinthe
endoftheaugerwithtwoholes,connectthe
augertotheinnerholeontheshaft.
•6inch(15cm)chainconguration
Usingtheholefarthestfromtheaugerbladein
theendoftheaugerwithtwoholes,connectthe
augertotheinnerholeontheshaft.
•8inch(20cm)chainconguration
Usingtheendoftheaugerwithonehole,
connecttheaugertotheinnerholeontheshaft.
•12inch(25or30cm)chainconguration
Usingtheendoftheaugerwithonehole,
connecttheaugertotheouterholeontheshaft.
7

G008936
1
2
3
4
5
Figure5
1.Auger
2.Connecttheseholesfora4inch(10cm)chain
3.Connecttheseholesfora6inch(15cm)chain
4.Connecttheseholesfora8inch(20cm)chain
5.Connecttheseholesfora12inch(30cm)chain
2.Torquetheboltandnutto75ft-lb(101N-m).
4
CheckingtheBearingCase
LubeLevel
NoPartsRequired
Procedure
Beforeoperatingthetrencher,checktoensurethatthe
bearingcaseislledwithgearlube.
1.Lowerthetrenchertothegroundonaat,level
surfaceandtiltitsothattheboomisparallelwith
theground.
2.Stoptheengineandremovethekey.
3.Cleantheareaaroundthebearingcasellholeplug
(Figure6).
G008940
1
Figure6
1.Bearingcasellholeplug
4.Removetheplugfromthebearingcasellhole
(Figure6).
5.Lookinthehole,thelevelshouldbeuptothe
bottomofthehole;ifnotaddgearlubeuntilit
comesoutofthehole.
6.Replacetheplugandtorqueitto15to17ft-lb(20
to23N-m).
8

ProductOverview
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
Width35inches(89cm)
Length65inches(165cm)
Height24inches(61cm)
Weight390lb(177Kg)
Maximumtrenchdepth,2ft(61
cm)boom
29inches(74cm)/24inches(61
cm)ata65degreeboomangle
Maximumtrenchdepth,3ft(91
cm)boom
42inches(107cm)/36inches
(91cm)ata65degreeboom
angle
Attachments/Accessories
AselectionofToroapprovedattachmentsand
accessoriesareavailableforusewiththemachineto
enhanceandexpanditscapabilities.Contactyour
AuthorizedServiceDealerorDistributororgoto
www.Toro.comforalistofallapprovedattachments
andaccessories.
Operation
RefertoyourtractionunitOperator’sManualformore
informationoninstallingandremovingattachments
onyourtractionunit.
Important:Alwaysusethetractionunittoliftand
movetheattachment.
DiggingaTrench
1.Ifyourtractionunithasaspeedselector,setitto
theslow(turtleposition),thenstarttheengine.
2.Pulltheauxiliaryhydraulicslevertotheoperator
griptoengagethetrencher.
3.Slowlylowerthetrenchertothegroundsothatthe
boomandchainareparalleltotheground.
4.Begininsertingthenoseoftheboomandchain
intothegroundbyslowlyraisingthetrencherafew
inchesoffthegroundwhiletiltingthenosedown
intothegroundgradually.
5.Oncethetrencherboomisinthegroundata45to
60degreeangle,slowlylowerthetrencheruntilthe
spoilsaugerisjustabovetheground.
6.Ensurethatallpartsofthetrencherarefunctioning
correctly.
7.Slowlymovethetractionunitrearwardtoextend
thetrench.
Note:Ifyoumovetoofast,thetrencherwillstall.
Ifitstalls,raiseitslightly,slowlydriveforward,or
reversethechaindirectionmomentarily.
8.Whennished,raisethetrencherandboomoutof
thetrenchbytiltingtheattachmentrearward,then
stopthetrencherbymovingtheauxiliaryhydraulics
leverintoneutral.
OffsettingtheTrencher
Youcanmovethetrenchertotherightsideofthe
trencherframetoallowyoutotrenchclosetobuildings
andotherobstacles.
1.Lowerthetrenchertotheground,stoptheengine,
anddisconnectthehydrauliclinesfromthetrencher.
9

Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.Fluidinjected
intotheskinmustbesurgicallyremovedwithin
afewhoursbyadoctorfamiliarwiththisform
ofinjuryorgangrenemayresult.
•Keepyourbodyandhandsawayfrompin
holeleaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulic
leaks,neveruseyourhands.
2.Removethe6boltssecuringthetrencherheadto
theframe(Figure7).
G008937
1
2
3
Figure7
1.Trencherhead(simplied
forillustrativepurposes)
3.Sidehoseguide
2.Safetybar
3.Movetheframetotheleft,aligningtheholesinthe
rightsideoftheframewiththoseinthehead.
4.Attachtheheadtotheframewiththe6bolts
removedpreviously(Figure7).
5.Torquetheboltsto190to230ft-lb(257to311
N-m).
6.Removethe3bolts,washers,andangenutsfrom
thesafetybarandremovethebar(Figure7).
7.Removethe2shortbolts,washers,andangenuts
securingtherightsideoftheupperframeand
movethemtothecorrespondingholesontheleft
(Figure7).
8.Installthesafetybaroverthetrencherchainusing
the3bolts,washers,andangenutsremoved
previously(Figure7).
9.Torqueall5boltsandnutsto190to230ft-lb(257
to311N-m).
10.Movethehosesfromthehoseguideontopofthe
trenchertothehoseguideontheleftside(Figure7).
TransportingtheTrencheron
aTrailer
Placethetrencheronatrailerortruckcapableof
carryingit.Securelytiethetrenchertothetraileror
truckusingtiestrapsappropriatefortheweightofthe
trencherandforhighwayuse.
OperatingTips
•Cleantheareaoftrash,branchesandrocksbefore
trenchingtopreventequipmentdamage.
•Alwaysbegintrenchingwiththeslowestground
speedpossible.Increasespeedifconditionspermit.
•Alwaysusefullthrottle(maximumenginespeed)
whentrenching.
•Alwaystrenchbackwards(i.e.,inreverse).
•Nevertransportthetrencherwiththeloaderarms
raised.Keepthearmsloweredandthetrencher
tiltedup.
•Whentrenching,thespoilsaugershouldjustclear
theoriginalgroundsurfacetoobtainmaximumsoil
removal.
•Trenchata45to60degreeangleforbestresults.
•Youwillbeabletodigatrenchfasterbycontrolling
thedepthwithperiodicadjustmentsoftheloader
arms.
•Ifyourtractionunithasaspeedselector(present
onsomewheeledtractionunits),setittotheslow
(turtleposition).
•Ifyourtractionunithasaowdivider(present
onsomewheeledtractionunits),adjustitto
approximatelythe10o’clockposition.
•Ifthetrencherbindsinthesoil,pushtheauxiliary
hydraulicsleverfullyforwardtoreversethechain
direction.Oncethechainisloose,pullthelever
rearwardagainandcontinuetrenching.
•Ifyouneedthenishedtrenchtobecleanerthan
whatispossiblewiththetrencher,youcanpurchase
acrumberfromyourdealer.Thecrumbermounts
ontothetrencherandscrapesthetrenchcleanas
yourunthetrencher.
•Toimprovethequalityoftrencheslessthan24
inches(61cm)deep,usea24inch(61cm)boom
onthetrencher.
10