Toro 22473 User manual

FormNo.3364-930RevA
High-TorqueTrencherHead
CompactUtilityLoaders
ModelNo.22473—SerialNo.310000001andUp
ModelNo.22474—SerialNo.310000001andUp
ToregisteryourproductordownloadanOperator'sManualorPartsCatalogatnocharge,gotowww.Toro.com.OriginalInstructions(EN)

ThisproductcomplieswithallrelevantEuropean
directives,fordetailspleaseseetheseparateproduct
specicDeclarationofConformity(DOC)sheet.
DANGER
Theremaybeburiedpower,gas,and/ortelephone
linesintheworkarea.Shockorexplosionmay
occurifyoudigintothem.
Havethepropertyorworkareamarkedforburied
linesanddonotdiginmarkedareas.Contactyour
localmarkingserviceorutilitycompanytohavethe
propertymarked(forexample,intheUnitedStates,
call811forthenationwidemarkingservice).
Introduction
Thetrencherheadsareattachmentsdesignedforuseon
Torocompactutilityloaderswithavarietyofbooms
andchainstodigtrenchesinsoiltofacilitatetheburying
ofcablingandpiping.Theyarenotintendedforusein
cuttinghardmaterialssuchaswoodorconcrete.
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......................................6
3InstallingtheSpoilsAuger..................................7
4CheckingtheBearingCaseLubeLevel................7
ProductOverview........................................................8
©2010—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN554202
Contactusatwww.Toro.com.
PrintedintheUSA.
AllRightsReserved

Specications.......................................................8
Attachments/Accessories.....................................8
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
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.
DANGER
Theremaybeburiedpower,gas,and/ortelephone
linesintheworkarea.Shockorexplosionmay
occurifyoudigintothem.
Havethepropertyorworkareamarkedforburied
linesanddonotdiginmarkedareas.Contactyour
localmarkingserviceorutilitycompanytohavethe
propertymarked(forexample,intheUnitedStates,
call811forthenationwidemarkingservice).
DANGER
Themovingteethandaugerwillseverelycuthands,
feet,orotherbodyparts.
•Keephands,feet,andanyotherpartofyour
bodyorclothingawayfrommovingteeth,auger,
orotherparts.
•Beforeadjusting,cleaning,repairing,or
inspectingthetrencher,lowerthetrencherto
theground,stoptheengine,waitforallmoving
partstostop,andremovethekey.
WARNING
Whentheengineisoff,attachmentsintheraised
positioncangraduallylower.Someonenearbymay
bepinnedorinjuredbytheattachmentasitlowers.
Alwayslowertheattachmentlifteachtimeyoushut
offthetractionunit.
WARNING
Whengoingupordownhill,themachinecould
overturniftheheavyendistowardthedownhill
side.Someonemaybepinnedorseriouslyinjured
bythemachineifitoverturns.
Operateupanddownslopeswiththeheavyendof
themachineuphill.Anattachedtrencherwillmake
thefrontendheavy.
3

WARNING
Ifyoudonotfullyseattheattachmentlocking
pinsintheattachmentmountplateholes,the
attachmentcouldfalloffofthetractionunitseverely
injuringtheoperatororbystanders.
•Ensurethatyoufullyseattheattachment
lockingpinsthroughtheholesintheattachment
mountplatebeforeliftingtheattachment.
•Ensurethattheattachmentmountplateisfreeof
anydirtordebristhatmayhindertheconnection
ofthetractionunittotheattachment.
•Refertoyourtractionunit
Operator’ s Man ual
fordetailedinformationonsafelyconnectingan
attachmenttoyourtractionunit.
WARNING
Lightningcancausesevereinjuryordeath.If
lightningisseenorthunderisheardinthearea,do
notoperatethemachine;seekshelter.
CAUTION
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.Fluidinjectedinto
theskinmustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththisformofinjury
organgrenemayresult.
•Keepyourbodyandhandsawayfrompin
holeleaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulicleaks,
neveruseyourhands.
CAUTION
Hydrauliccouplers,hydrauliclines/valves,and
hydraulicuidmaybehotandcanburnyouifyou
touchthem.
•Weargloveswhenoperatingthehydraulic
couplers.
•Allowthetractionunittocoolbeforetouching
hydrauliccomponents.
•Donottouchhydraulicuidspills.
StabilityRatings
Todeterminethedegreeofslopeyoucantraversewith
thetrencherinstalledonatractionunit,ndthestability
ratingforthehillpositionyouwanttotravelinthe
appropriatetablebelow,thenndthedegreeofslope
forthesameratingandhillpositionintheStabilityData
sectionofthetractionunitOperator’sManual.
WARNING
Exceedingthemaximumrecommendedslope
cancausethetractionunittotip,crushingyouor
bystanders.
Donotdrivethetractionunitonaslopesteeper
thanthemaximumrecommendedslope,as
determinedinthefollowingtablesandthetraction
unit
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
1
InstallingtheBoomand
DiggingChain
Partsneededforthisprocedure:
1Boomassembly(soldseparately)
1Chainassembly(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.
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
1Safetybarextension(withboomsover2ft(61cm)
only)
2Bolts(withboomsover2ft(61cm)only)
2Locknuts(withboomsover2ft(61cm)only)
Procedure
1.Removethe3bolts,washers,andangenutsfrom
theupperleftcornerofthetrencherframe(Figure4).
6

1 2 3
4G008935
Figure4
1.Safetybar3.Bolts
2.Washers4.Flangenuts
2.Usingthefastenersremovedpreviously,installthe
trenchersafetybarasillustratedinFigure4.
3.Torquetheboltsandnutsto190to230ft-lb(257to
311N-m).
4.Ifyouhaveaboomover2ft(61cm),securethe
safetybarextension(suppliedwiththeboom)over
theendofthesafetybarandsecureitusingthe2
boltsandlocknutssuppliedwiththeextension.
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.
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).
7

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).
ProductOverview
Specications
Note:Specicationsanddesignaresubjecttochange
withoutnotice.
Width,with3ft(91cm)boom35inches(89cm)
Length,with3ft(91cm)boom65inches(165cm)
Height,with3ft(91cm)boom24inches(61cm)
Weight,with3ft(91cm)boom390lb(177Kg)
Maximumtrenchdepth,2ft(61
cm)boom
24inches(61cm)ata65
degreeboomangle
Maximumtrenchdepth,3ft(91
cm)boom
36inches(91cm)ata65
degreeboomangle
Maximumtrenchdepth,4ft
(122cm)boom
48inches(122cm)ata65
degreeboomangle
Attachments/Accessories
AselectionofToroapprovedattachmentsand
accessoriesareavailableforusewiththemachineto
enhanceandexpanditscapabilities.Contactyour
AuthorizedServiceDealerorDistributororgoto
www.Toro.comforalistofallapprovedattachments
andaccessories.
8

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.
WARNING
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).
9

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

Maintenance
RecommendedMaintenanceSchedule(s)
MaintenanceService
IntervalMaintenanceProcedure
Beforeeachuseordaily•Greasethetrencher.
•Inspectthediggingteethandchainforexcessivewear.
Every25hours
•Checkthegearlubelevel.
•Adjustthediggingchaintension.
•Inspecttheboomforwear.
Every200hours•Changethegearlube.
Beforestorage
•Greasethetrencher.
•Checkthegearlubelevel.
•Paintchippedsurfaces.
CAUTION
Ifyouleavethekeyintheignitionswitch,someonecouldstarttheengine.Accidentalstartingofthe
enginecouldseriouslyinjureyouorotherbystanders.
Removethekeyfromtheignitionswitchbeforeyoudoanymaintenance.
GreasingtheTrencher
ServiceInterval:Beforeeachuseordaily
Beforestorage
Grease2ttings,asshowninFigure8andFigure9,
everydayandimmediatelyaftereverywashing.
GreaseType:General-purposegrease
1.Stoptheengineandremovethekey.
2.Cleanthegreasettingswitharag.
3.Connectagreaseguntoeachtting.
4.Pumpgreaseintothettingsuntilgreasebeginsto
oozeoutofthebearings.
5.Wipeupanyexcessgrease.
G008938
Figure8
G008939
Figure9
ServicingtheBearingCase
Lube
ServiceInterval:Every25hours
Every200hours
Beforestorage
Gearlubetype:SAE90-140APIserviceGL-4orGL-5
Rellcapacity:1pint(1/2l).
CheckingtheBearingCaseLube
1.Lowerthetrenchertothegroundonaat,level
surfaceandtiltitsothattheboomisparallelwith
theground.
2.Stoptheengineandremovethekey.
3.Cleantheareaaroundthebearingcasellholeplug
(Figure10).
11

G008940
1
Figure10
1.Bearingcasellholeplug
4.Removetheplugfromthebearingcasellhole
(Figure10).
5.Lookinthehole,thelevelshouldbeuptothe
bottomofthehole;ifnotaddgearlubeuntilit
comesoutofthehole.
6.Replacetheplugandtorqueitto15to17ft-lb(20
to23N-m).
ChangingtheGearLube
1.Cleantheareaaroundthebearingcasellholeplug
(Figure10).
2.Removetheplugfromthebearingcasellhole
(Figure10).
3.Liftthetrencheruntiltheboomisvertical,draining
thelubethroughthellholeandintoapan.
4.Returnthetrenchertotheground.
5.Fillthebearingcasewithgearlubeuntilitcomes
outofthellhole.
6.Replacetheplugandtorqueitto15to17ft-lb(20
to23N-m).
AdjustingDiggingChain
Tension
ServiceInterval:Every25hours
Withthetrencherparalleltotheground,ensurethat
thereare1-1/2to2-1/2inches(3.8to6.3cm)between
thebottomoftheboomandthetopofthebottom
chainspan.Ifnot,adjustthechainusingthefollowing
procedure:
Important:Donotovertightenthechain.Excess
chaintensionmaydamagedrivecomponents.
1.Loosenthe2boltsandnutssecuringtheboomto
thetrencherarm(Figure3).
2.Loosenthejamnutsecuringtheadjustmentbolt
(Figure3).
3.Turntheadjustmentboltinoroutasneededto
achievethedesiredtension.
4.Tightenthejamnut.
5.Torquethe2boltsandnutssecuringtheboomto
135to165ft-lb(183to223N-m).
FlippingaWornBoom
ServiceInterval:Every25hours
Inspectthebottomoftheboomforwear,ifitisworn,
completethefollowing:
Note:Ifyouhavealreadyippedtheboomonce,
replacetheboomwhenbothsidesareworn.
1.Removethe2boltsandnutssecuringtheboomto
thetrencherarm(Figure3).
2.Loosenthejamnutontheadjustingboltinthe
boom(Figure3).
3.Loosentheadjustingboltuntilyoucanremovethe
chainfromtheboom(Figure3).
4.Removethechainfromthedrivesprocket.
5.Removetheboom,ipitoversothebottom
becomesthetop(orifyouhavealreadyippedit
once,replaceit),andinstalltheboomagain.
6.Replacethenuts,bolts,andwasherssecuringthe
boom.
7.Installthechainoverthedrivesprocketandfront
roller.
8.AdjustthechaintensionasdescribedinAdjusting
theDiggingChainTension.
12

ReplacingtheDiggingTeeth
ServiceInterval:Beforeeachuseordaily
Duetothehighamountofwearplacedonthedigging
teeth,youwillneedtoreplacethemperiodically.
Toreplaceasingletooth,removetheboltssecuringthe
toothtoremoveit,theninstallanewtoothinthesame
position.Torquetheboltssecuringtheteethto27to33
ft-lb(37to45N-m).
ReplacingtheDriveSprocket
Overtime,thedrivesprocketwillwear,especiallywhen
usedinsandyorclaysoils.Whenthishappens,the
diggingchainwillbegintoslip.Ifthechainslips,replace
thedrivesprocket,asfollows:
1.Raisethetrencherafewinchesabovetheground.
2.Stoptheengineandremovethekey.
3.Removethespoilsauger(Fig.8).
G008941
1 2 3
Figure11
1.Spoilsauger3.Bolts
2.Drivesprocket
4.Loosenthe2boltsandnutssecuringtheboomto
thetrencherarm(Fig.2).
5.Loosenthejamnutontheadjustingboltinthe
boom(Fig.2).
6.Loosentheadjustingboltuntilyoucanremovethe
chainfromtheboom(Fig.2).
7.Removethechainfromthedrivesprocket.
8.Removethe6boltssecuringthedrivesprocket(Fig.
8).
9.Removeanddiscardthedrivesprocket(Fig.8).
10.Cleanthesprocketmountingsurfaceonthetrencher.
11.Slidethenewsprocketontotheshaftasillustrated
inFigure8.
Important:Thearrowonthesprocketface
shouldbevisiblefromtherightsideofthe
trencherandshouldpointinaclockwise
direction;ifnot,turnthesprocketaround.
12.Threadthe6boltsintothesprocketngertight(Fig.
8).
13.Slowlybegintighteningtheboltsprogressingaround
thesprocketuntilallboltsaretorquedto95to115
ft-lb(129to155N-m).
Important:Tighteneachboltonlyhalfway
rst,workingyourwayaroundthesixbolts,
thenreturntoeachboltinturnandtorquethem
tothespecicationsgiveninstep13.
14.Loopthechainovertheaugerdriveshaftandonto
thedrivesprocket,ensuringthattheteethpoint
forwardontheupperspan.
15.Settheupperspanofthechainintoplaceonthe
trencherboom,thenwrapthechainaroundthe
rollerattheendoftheboom.
16.Threadtheadjustmentboltintotheboomandturn
itinuntilthereis1-1/2to2-1/2inches(3.8to6.3
cm)ofslackinthechainonthebottomspan.
17.Threadthejamnutdowntheadjustingboltand
tightenitsecurelyagainsttheboom.
18.Torquethe2boltsandnutssecuringtheboomto
135to165ft-lb(183to223N-m).
19.Installthespoilsauger;refertoInstallingtheSpoils
Auger.
13

Storage
1.Beforelongtermstorage,brushthedirtfromthe
attachment.
2.Checktheconditionofthediggingchain.Adjustand
lubricatethechain.Replaceanywornordamaged
teeth.
3.Checkandtightenallbolts,nuts,andscrews.Repair
orreplaceanypartthatisdamagedorworn.
4.Ensurethatallhydrauliccouplersareconnected
togethertopreventcontaminationofthehydraulic
system.
5.Paintallscratchedorbaremetalsurfaces.Paintis
availablefromyourAuthorizedServiceDealer.
6.Storethetrencherinaclean,drygarageorstorage
area.Coverthetrenchertoprotectitandkeepit
clean.
14

Troubleshooting
ProblemPossibleCauseCorrectiveAction
1.Ahydrauliccouplerisnotcompletely
connected.
1.Checkandtightenallcouplers.
2.Ahydrauliccouplerisdamaged.2.Check/replacecouplers
3.Thereisanobstructioninahydraulic
hose
3.Findandremovetheobstruction.
4.Anauxiliaryvalveonthetractionunit
isnotopening.
4.Repairthevalve.
5.Theboomendbearingfailed.5.Replacethebearing.
6.Thediggingchainistootight.6.Adjustthediggingchain.
7.Thereissandbuildupintoothrootof
thedrivesprocket.
7.Raisethetrencherandrunthechain
backwards,thenreducethechain
tension.
Thechaindoesnotturn.
8.Hydraulicmotororchaindrivefailure8.ContactyourAuthorizedService
Dealer.
1.Wornteeth1.Replaceanywornteeth.
2.Wrongsettingonowdividerand
speedlever(applicablewheeledunits
only)
2.Settheowdividertothe10:00
positionandthespeedlevertothe
turtleposition.
3.Thereisarestrictioninaquickcoupler
orhose.
3.Checkthehosesandcouplersand
repairanyproblemsfound.
4.Thehydraulicsystemistoohot.4.Shutdownandallowthesystemtocool.
Thetrencherdoesnotdigfastenough.
5.Thereliefvalveissetbelow
specications.
5.ContactyourAuthorizedService
Dealer.
1.Theauxiliaryvalveleverisinthewrong
position.
1.Movetheauxiliaryvalvelevertothe
rearwardposition.
Thechainturnsinthewrongdirection
2.Thehydraulichosesarereversed.2.Disconnecthosesandswitchpositions.
1.Thellplugisleaking.1.Lookformoisturearoundthellplug.
Ifpresent,changetheoil,andreplace
theplugandtheplugo-ring.
2.O-ringfailureonthemotor.2.ContactyourAuthorizedService
Dealer.
Thebearingcaselubeiscontaminated.
3.Sealfailure.3.ContactyourAuthorizedService
Dealer.
15

ToroCompactUtilityEquipmentWarranty
AOne-YearLimitedWarrantyCUEProducts
ConditionsandProductsCovered
TheT oro®Companyanditsafliate,ToroWarrantyCompany,pursuant
toanagreementbetweenthem,jointlywarrantyourToroCompactUtility
Equipment(“Product”)tobefreefromdefectsinmaterialsorworkmanship.
Thefollowingtimeperiodsapplyfromthedateofpurchase:
ProductsWarrantyPeriod
Loaders,TrenchersandAttachments1yearor1000operating
hours,whicheveroccursrst
KohlerEngines3years
AllotherEngines2years
Whereawarrantableconditionexists,wewillrepairtheProductatnocost
toyouincludingdiagnosis,labor,andparts.
InstructionsforObtainingWarrantyService
IfyouthinkthatyourToroProductcontainsadefectinmaterialsor
workmanship,followthisprocedure:
1.ContactanyAuthorizedT oroCompactUtilityEquipment(CUE)
ServiceDealertoarrangeserviceattheirdealership.Tolocatea
dealerconvenienttoyou,accessourwebsiteatwww.T oro.com.
YoumayalsocallourToroCustomerCareDepartmenttollfree
at888-865-5676(U.S.customers)or888-865-5691(Canadian
customers).
2.Bringtheproductandyourproofofpurchase(salesreceipt)tothe
ServiceDealer.
3.IfforanyreasonyouaredissatisedwiththeServiceDealer’s
analysisorwiththeassistanceprovided,contactusat:
LCBCustomerCareDepartment
ToroWarrantyCompany
8111LyndaleAvenueSouth
Bloomington,MN55420-1196
TollFree:888-865-5676(U.S.customers)
TollFree:888-865-5691(Canadacustomers)
OwnerResponsibilities
YoumustmaintainyourT oroProductbyfollowingthemaintenance
proceduresdescribedintheOperator’sManual.Suchroutine
maintenance,whetherperformedbyadealerorbyyou,isatyourexpense.
Partsscheduledforreplacementasrequiredmaintenance(“Maintenance
Parts”),arewarrantedfortheperiodoftimeuptothescheduled
replacementtimeforthatpart.Failuretoperformrequiredmaintenance
andadjustmentscanbegroundsfordisallowingawarrantyclaim.
ItemsandConditionsNotCovered
Notallproductfailuresormalfunctionsthatoccurduringthewarranty
periodaredefectsinmaterialsorworkmanship.Thisexpresswarranty
doesnotcoverthefollowing:
•Productfailureswhichresultfromtheuseofnon-Tororeplacement
parts,orfrominstallationanduseofadd-on,modied,orunapproved
accessories
•Productfailureswhichresultfromfailuretoperformrequired
maintenanceand/oradjustments
•ProductfailureswhichresultfromoperatingtheProductinan
abusive,negligentorrecklessmanner
•Partssubjecttoconsumptionthroughuseunlessfoundtobe
defective.Examplesofpartswhichareconsumed,orusedup,during
normalProductoperationinclude,butarenotlimitedto,diggingteeth,
tines,sparkplugs,tires,tracks,lters,chains,etc.
•Failurescausedbyoutsideinuence.Itemsconsideredtobeoutside
inuenceinclude,butarenotlimitedto,weather,storagepractices,
contamination,useofunapprovedcoolants,lubricants,additives,or
chemicals,etc.
•Normal“wearandtear”items.Normal“wearandtear”includes,butis
notlimitedto,wornpaintedsurfaces,scratcheddecalsorwindows,
etc.
•Anycomponentcoveredbyaseparatemanufacturer’swarranty
•Pickupanddeliverycharges
GeneralConditions
RepairbyanAuthorizedT oroCompactUtilityEquipment(CUE)Service
Dealerisyoursoleremedyunderthiswarranty.
NeitherTheToro®CompanynorToroWarrantyCompanyisliable
forindirect,incidentalorconsequentialdamagesinconnectionwith
theuseoftheToroProductscoveredbythiswarranty,including
anycostorexpenseofprovidingsubstituteequipmentorservice
duringreasonableperiodsofmalfunctionornon-usepending
completionofrepairsunderthiswarranty.Allimpliedwarranties
ofmerchantabilityandtnessforusearelimitedtotheduration
ofthisexpresswarranty.Somestatesdonotallowexclusionsof
incidentalorconsequentialdamages,orlimitationsonhowlong
animpliedwarrantylasts,sotheaboveexclusionsandlimitations
maynotapplytoyou.
Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveother
rightswhichvaryfromstatetostate.
ExceptfortheenginewarrantycoverageandtheEmissionswarranty
referencedbelow,ifapplicable,thereisnootherexpresswarranty.The
EmissionsControlSystemonyourProductmaybecoveredbyaseparate
warrantymeetingrequirementsestablishedbytheU.S.Environmental
ProtectionAgency(EPA)ortheCaliforniaAirResourcesBoard(CARB).
ThehourlimitationssetforthabovedonotapplytotheEmissions
ControlSystemWarranty.RefertotheCaliforniaEmissionControl
WarrantyStatementsuppliedwithyourProductorcontainedintheengine
manufacturer’sdocumentationfordetails.
CountriesOtherthantheUnitedStatesorCanada
CustomerswhohavepurchasedToroproductsexportedfromtheUnitedStatesorCanadashouldcontacttheirT oroDistributor(Dealer)toobtain
guaranteepoliciesforyourcountry,province,orstate.IfforanyreasonyouaredissatisedwithyourDistributor’sserviceorhavedifcultyobtaining
guaranteeinformation,contacttheT oroimporter.Ifallotherremediesfail,youmaycontactusatT oroWarrantyCompany.
374-0261RevA