Toro RT600, 25200E Operator's Manual

FormNo.3407-349RevA

DirectDriveTrencher

RT600TractionUnit

ModelNo.25200—SerialNo.316000001andUp
ModelNo.25200E—SerialNo.316000001andUp

Registeratwww.T oro.com.
OriginalInstructions(EN)

*3407-349*A

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafety-alertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.

Introduction

Thisattachmentisdesignedtodigtrenchesinsoiltobury
cablingandpipingforvariousapplications.Itisnotintended
tocutrock,wood,oranyothermaterialotherthansoil.

Readthisinformationcarefullytolearnhowtooperateand
maintainyourproductproperlyandtoavoidinjuryand
productdamage.Youareresponsibleforoperatingthe
productproperlyandsafely.

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

Wheneveryouneedservice,genuineT oroparts,oradditional
information,contactanAuthorizedToroServiceDealer
orToroCustomerServiceandhavethemodelandserial
numbersofyourproductready.Figure1illustratesthe
locationofthemodelandserialnumbersontheproduct.
Writethenumbersinthespaceprovided.

Figure2

1.Safety-alertsymbol

Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.

Contents

Safety...........................................................................3

SafetyandInstructionalDecals.................................4

....................................................................................5

PreparingtheMachine.............................................5

InstallingtheTrencherAttachment............................5

InstallingtheAuger.................................................6

InstallingtheRestraint-BarBrackets...........................6

InstallingtheHydraulicHoses...................................7

InstallingtheBoom.................................................8

InstallingtheDiggingChain.....................................12

Operation....................................................................13

SelectingtheProperComponentsforthe

Trencher............................................................13

UsingtheTrencher.................................................15

OperatingTips......................................................17

Maintenance.................................................................18

GreasingtheTrencher.............................................18

ServicingtheTrencherDiggingChain.......................18

ReplacingtheDiggingChain....................................23

Storage........................................................................25

Troubleshooting...........................................................26

Figure1

1.Locationofthemodelandserialnumberplate

©2016—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Contactusatwww.Toro.com.

2

PrintedintheUSA

AllRightsReserved

Safety

Improperlyusingormaintainingthetrenchercan
resultininjury.Toreducethepotentialforinjury,
complywiththesesafetyinstructionsandthoseinthe
machine
safetyalertsymbol,whichmeansCaution,Warning,or
Danger—personalsafetyinstruction.Failuretocomply
withtheinstructionmayresultinpersonalinjuryor
death.

Theremaybeburiedpower,gas,and/ortelephone
linesintheworkarea.Anelectricshockoran
explosionmayoccurifyoudigintoautilityline.

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

Operator’ s Man ual

DANGER

.Alwayspayattentiontothe

WARNING

Lightningcancausesevereinjuryordeath.

Iflightningisseenorthunderisheardinthearea,
donotoperatethemachine;seekshelter.

CAUTION

Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.Fluidinjectedinto
theskinmustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththisformofinjury;
otherwise,gangrenemayresult.

•Keepyourbodyandhandsawayfrompin-hole
leaksornozzlesthatejecthigh-pressure
hydraulicuid.

•Usecardboardorpapertondhydraulicleaks;
neveruseyourhands.

DANGER

Themovingteethandaugerwillcutorseveryour
hands,feet,orotherbodyparts.

•Keephands,feet,andanyotherpartofyour
bodyorclothingawayfrommovingteeth,auger,
orotherparts.

•Beforeadjusting,cleaning,repairing,or
inspectingthetrencher,lowerthetrenchertothe
ground,shutofftheengine,waitforallmoving
partstostop,andremovethekey.

WARNING

Whentheengineisoff,anattachmentintheraised
positioncangraduallylower.Someonebelow
theattachmentmaybepinnedorinjuredbythe
attachmentasitlowers.

Alwayslowertheattachmenteachtimeyoushut
offthemachine.

CAUTION

Hydraulicttings,hydrauliclines/valves,and
hydraulicuidmaybehotandcanburnyouifyou
touchthem.

•Weargloveswhenmaintaininghydraulic
components.

•Allowthetractionunitandtrenchertocool
beforetouchinghydrauliccomponents.

•Donottouchhydraulicuidspills.

WARNING

Whengoingupordownhill,themachinecould
overturniftheheavyendistowardthedownhill
side.Someonemaybepinnedorseriouslyinjured
bythemachineifitoverturns.

Operatethemachineupanddownslopeswith
theheavyendofthemachineuphill.Anattached
trenchermakesthebackendofthemachineheavy.

3

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.Replaceanydecalthatisdamagedorlost.

Figure3

1.Decal125-66702.Decal125-6671

125–6670

1.Cutting/dismembermenthazard,trencher—keep
bystandersawayfromthetrencher;keepawayfrommoving
parts;keepallguardsandsafetiesinplace.

125-6671

1.Explosionhazard;electricshockhazard—calllocalutilities
beforedigging.

4

PreparingtheMachine

Important:Ensurethattheliftingequipmenthasa

liftingcapacityofatleast405kg(893lb).

2.Settheparkingbrake.

3.TurnthekeytotheOFFposition.

4.Removethekey.

1.Parkthemachineonalevelsurface.

5.Disconnectthebattery.

InstallingtheTrencherAttachment

Raisetheattachmentofftheoor.

Important:Ensurethattheliftingequipmenthasaliftingcapacityofatleast405kg(893lb).

1x2x4x11x6x

(3/4x2-1/4

inches)

(3/4x2-1/2

inches)(3/4inch)

5

InstallingtheAuger

4x4x4x

(5/8x2

inches)

InstallingtheRestraint-BarBrackets

1x1x8x8x8x8x

(5/8inch)

(M12)

(M12x4-1/4

inches)

(5/8inch)

(5/8x2

inches)

6

InstallingtheHydraulicHoses

2x

42cm(16-1/2inches)

1x

97cm(38inches)

88cm(34-1/2inches)

1x

7

Testingthehoses

1.Startthemachine;refertothetractionunitOperator’s
Manual.

75cm(29-1/2inches)

1x

2.Operatethetrencher-chaindirectioncontrolandthe
attachmentcontrol(locatedontherightsideofthe
operatorseat)inbothdirectionsseveraltimestobleed
theairfromthehydraulicmotorandthehydrauliclift
cylinder.

Note:Thetrencher-chaindirectioncontrolrotatesthe
hubforwardandrearward,andtheattachmentcontrol
raisesandlowerstheboom-mounttting.Have
anotherpersonobservethehubandtheboom-mount
ttingastheymove.Moveeachofthecontrolsinboth
directionsuntilthehubandtheboom-mounttting
movesmoothlyinbothdirections.

InstallingtheBoom

AssemblingandInstallingtheBoom-EndCylinder

1x1x1x1x1x1x

O-ring

Washer

(3/16x1-3/4

inches)

8

InstallingtheBoomPlates

2x2x

Longboomplates

4x2x2x2x2x

(5/8x4-1/2

inches)

Placethreadlockingadhesiveon4bolts(5/8x4-1/2inches)andinstallthemasshown.

(M12)(M12)

ThickbarclampThinbarclamp

Shortboomplates

9

InstallingtheWearPadChannel

10x(shortboom)14x(longboom)

(M10)

Applythread-lockingadhesivetothebolts(M10)andsecurethewear-padchannelontotheboom.

Shortboomshown

1x

10

InstallingtheBoom-RollerAssembly

1x2x1x1x1x1x

1.Addgreasetothewashersandensurethatthewashersareushwiththerollersurfacewheninstalling.

2.Installtheboompinthroughtheboom-rollerassemblybeingcarefultocentertheconespacersbeforeslidingthe
pinthrough.

3.Applythread-lockingadhesivetotheboltandtorqueto230to258N∙m(170to190ft-lb).

4.Aftertheassemblyisinstalled,applygreasetotheboomendrollerslowlywhilerotatingtherolleruntilthegrease
ispurgedfromtheroller.

(3/4x1-1/2

inches)

InstallingtheShieldExtension(LongBoomOnly)

1x8x

(M10)

Applythread-lockingadhesivetothebolts(M10)andsecuretheshieldextensionontotheboomassembly.

11

InstallingtheWearPadsandRestraintBar

1x

1x

Wearpad(shortand

longshown)

Applythread-lockingadhesivetothebolts(M10)andsecurethewearpadontotheboomassembly .

Shortboomshown

5x(shortboom)6x(longboom)

(M10)

TorquingtheHardware

Bolts(M10)Bolts(M12)

InstallingtheDiggingChain

RefertoInstallingtheDiggingChain(page24).

12

Operation

1

G02191 1

SelectingtheProper ComponentsfortheTrencher

Usingthecorrecttrenchercomponentshelpstoincrease
thetrenchingspeedandextendingthelifeofthetrencher.
ContactanAuthorizedT oroServiceDealerformore
informationonpartsforyourtrencher.

SelectingtheProperChain

Itisimportanttohavethecorrectchainforthejob.The
soilconditionswilldeterminethetypeofchainthathasthe
strengthandtensionthatyouneed.Achainthatistoolight
wearsfastorbreaks;achainthatistooheavyincreasesthe
loadonthemachineandreducesthetrencherdiggingspeed;
however,aheavychainhasalongerwearlifethanalighter
chain.

Youcancongurethetrencherwithananti-backexdigging
chainthatisdesignedforharddiggingconditionsorawelded
H-platechainforextremeconditions.Thesideplatesofthe
anti-backexdiggingchainareclosetogether.Asthechain
leavesthesprocket,eachlinkcomestogetherandformsa
soliddiggingchannel.Thisactionkeepseachtoothatthe
correctdiggingangle.TheweldedH-platechainisfordigging
inthemostextremeconditions.

Important:Maintainthecorrectchaintension.Ifthe
chainistootightortooloose,thediggingefciency
decreasesandthepartswearmorequickly.Referto

CheckingtheChainTension(page18).

Note:Trencherchainsareratedbytheirtensilestrength;for
example,a34019kg(75,000lb)chaintakesaminimumof34
019kg(75,000lb)ofpulltobreakthechain.

Selectthechaintype;chooseeitheraanti-backexchainora
weldedH-platechain(Figure20andFigure21).

Figure21

1.H-platechain

SelectingtheProperDiggingTeeth

Themostimportantcomponentofthetrencherarethe
diggingteeth;thetypeofteeththatyouselectandthe
arrangementofteeththatyouusegreatlyaffectsthedigging
efciencyandtoothwear.

•Choosetheteethtype:

–cuppedteeth

–rock/frostbit

–sharkteeth

–cuppedteethandrock/frostbitcombination

–cuppedandsharkteethcombination

•Choosethetootharrangementwidth:

–152mm(6inch)

–203mm(8inch)

TypesofDiggingTeeth

Thetypesofdiggingteethareasfollows:

•Cuppedteeth(Figure22)arethebestforcutting

throughlighttomediumsoil.Thecuppeddesignofthe
toothcutsthroughthesoilandthenmovesitupandout
ofthetrench.

1.Anti-backexchain

Figure20

Figure22

1.Cuppedteeth

•Rockandfrostteeth(Figure23)orsharkteeth(Figure

24)arebestforcuttinggroundthatisveryhard,rocky,or

frozen;itisalsousedforcuttingthroughasphalt.

13

G021912

1

1

G021972

Thearrangementofdiggingteethinvolvesbothwhereand
howeachtoothisattachedtothediggingchain.Usethe
followingguidelineswhenyouselectthearrangementsof
teeth:

•Installteeththatarethesamewidthandarespaced

equallyaroundthechain.

•Usefewerteethonthechainwhenyouareoperatingthe

trencherinwetclayorgumbo.

•Usemoreteethonthechainwhenyouareoperatingthe

trencherinsandyloamorrockyground.

Figure23

1.Sharktooth

Note:Youcanusedifferenttypesandcombinationsofteeth
toincreaseproductivityinvariousdiggingconditions.The
rockandfrostteethorthesharkteethpenetratethesoilwell,
andthecuppedteethhelptoremovethesoil.Tryseveral
combinationstodeterminetheonebestsuitedforyoursite.

Figure24

1.Rockandfrosttooth

ArrangementsoftheDiggingTeeth

CombinationsofBoom,Chain,andTeethforVariousSoilTypesandConditions

SoilTypeChainT ype

HeavyDuty

Anti-backex

Sand

SandyLoam

LooseShale

TopsoilX

Caliche(Hard)

Clay(Gumbo)

Coral

Rock(Loose)

AsphaltXXXX

HardClay

FrozenSoil

XXXXX

XX

XXXX

XXXX

XXXXX

XXXXX

H-Plate

CupCutterRock/Frost

X

X

XX

DiggingT eethT ype

MiningBit

Note:Youneedarockwheeltocutsolidrockorconcrete.

Shark

Mixed

14

UsingtheTrencher

g021914

1

g021973

CheckingtheTooth-mountingBolts

ServiceInterval:Beforeeachuseordaily

Checkthemountingboltsofallthechainteeth(Figure25),
andtightentheboltsasneeded.

PositioningtheBoomforTrenching

Forthebesttrenchingperformanceandthesmoothest
machineoperation,theboommustbeinthefulldown
trenchingposition(Figure26).Havingtheboominthis
positionpullsthemachinedownforbettertraction.The
grounddrivesimplypullsthetrencherteethintothefaceof
thetrench.

Figure26

Figure25

1.Mountingbolts

PositioningtheSeatforTrenching

Fastentheseatbeltandrotatetheseattothetrenching
position.

Note:Y oumustbeseatedintheoperator’sseatbefore
movingthemachine;otherwise,theenginestopsin1second.

UsingtheTrencherControls

•Movetherearattachmentspeedcontrolleverforwardto

actuatethediggingchainintheforwarddirection.

•Movetheleverfurtherforwardtoincreasethechain

speed.

•Movetheleverfurtherrearwardtodecreasethechain

speed.

MovethecontroltotheNEUTRALposition(A)tostop
thechain;movethecontrolleverrearward(B)toreverse
thechaindirection.

Whenyouraisetheboomfromthefulldownposition,the
trenchingloadpullsthemachinerearward.Thispulling
reducesthetractionandmaycausethemachinetobounce
andpullwhenthechaincontactsrootsorrocks.Therearward
pullofthetrenchingoperationalsoworksagainsttheground
drive,causingtheenginetoworkharder.

StartingaTrench

Important:Knowthelocationofallunderground

utilitiesbeforeoperatingthemachineontheworksite.

1.Ensurethatallpersonsareawayfromthemachine
beforeyoustarttheengineandwhileyouaretrenching.

2.Starttheengine;refertothetractionunitOperator’s
Manual.

3.Runtheengineat1/4throttleuntiltheenginereaches
theoperatingtemperature.

4.Movethecrumber(ifequipped)totheTransport
position(Figure27).

•Tolowerthetrencherboomtothedesireddepth,push

theattachmentcontrolleverawayfromyou;toraise
thetrencherboom,pullthecontrollevertowardyou.
Whenyoureleasethecontrollever,itwillreturntothe
NEUTRALpositionautomatically.

15

Figure27

1.Crumberbar(optional)

5.Whentheenginehasreachedtheoperating
temperature,movethemachinetotheworkareaand
positionthemachinetocutthetrench.

Note:Ensurethattheendofthetrencherboomis
severalfeetbeyondthestartingpointofthetrench.

6.Alignthemachinetothecenterlineofthenewtrench.

7.AdjusttheenginespeedtotheFullthrottleposition,
andlowertheboomtojustabovetheground.

8.Startthediggingchainbymovingtherearattachment
controllevertowardthefrontofthemachine.

Note:Youmustbeseatedintheoperatorseatbefore
movingthemachine;otherwise,theenginestopsin
1second.

Note:Thecrumber(ifequipped)automaticallymoves
fromtheTRANSPORTpositionintotheOPERATING
positionwhenthetrencherattachmentreachesthe
maximumdigdepth.

12.Decreasethediggingchainspeedandlookatthe
tachometer.

Note:Iftheenginespeedincreases,pushthe
utility-tractionleverforwarduntiltheenginespeedis
thesamethatinstep11.Repeatthissteptoobtain
thebesttrenchingspeed.

Note:Somehardsoilconditionsallowyoutodiga
trenchfasterbyreducingthechainspeed.

WARNING

Operatingatrencherattachmentwithouta
restraintbaroracrumbercouldresultinserver
personalinjuryordeathifthechainbreaks.

Donotoperateatrencherattachmentwithout
arestraintbar.

Note:Thetrencheroperatesbestwhentheengineis
atfullthrottle.Adjustthegroundspeedtokeepfrom
luggingtheengine.

Important:Allsteeringshouldbegradual.Donot
makesharpturnswiththeboomintheground.
Markingsharpturnswhilediggingwiththe
trencherwilldamagethetrencher.

Note:Checkthechaintensionwhenyouarestarting
anewtrenchineachlocation;refertoCheckingthe

ChainTension(page18).

CuttingaCurvedTrench

Important:Donotmakesharpturnswiththeboomin

theground.Markingsharpturnswhilediggingwiththe
trencherwilldamagethetrencher.

Youcanmakeagradualcurvebyusingtherear-wheelsteering
controlonlyasneededtoslightlyarticulatethemachine.Do
notmakesteeringcorrections,asthiswillswingtheboom
intothesideofthetrenchandundercutit.

StraighteningaCrookedTrench

Asthetrencherisdigging,itmayvaryslightlyfromastraight
line;thiscanoccurifyouarediggingtooquicklyforthesoil
conditions.Tostraightenthetrench,raisetheboom,reverse
thegroundtravelandmovethetrencherforwarduntilthe
diggingchainclearsthetrench.Correctthealignmentofthe
trenchertothetrenchandlowertheboom.

9.Movetheutility-tractionleverforwarduntilthe
machinestartstomoveforward.

10.Lowertheboomintotheground.

11.Whenthediggingchainisloweredtothedesireddepth,
movetheutility-tractionleverforwarduntiltheengine
speeddecreasesabout10%(200to300rpm).

Note:Rememberthatspeedonthetachometer.

FinishingtheTrench

1.Whenyoucompletethetrench,stopthemachine.

2.Slowlyraisetheboomuntilitisoutofthetrenchabout
15cm(6inches).

3.Movetheattachmentgroundspeedcontrollevertothe
NEUTRAL(disengaged)positiontostopthedigging
chain.

16

4.PulltheattachmentliftleverbacktotheRAISEposition
untiltheboomisintheTRANSPORTposition.

5.MovethethrottletotheIDLEposition,shutoffthe
engine,andremovethekey.

OperatingTips

•Cleantheareaoftrash,branches,androcksbefore

trenchingtopreventdamagingtheequipment.

•Alwaysselecttheshortestboom,thelightestchain,and

thelightestteethtohandlethejob.Inharddigging
conditions,selectahightensile-strengthchain,arock
boom,andananti-backexchainwithrockandfrost
teeth.

•Alwaysbegintrenchingwiththeslowestgroundspeed

possible.Increasethetrenchingspeedifconditions
permit.Ifthechainspeedslowsdown,reducetheground
speedtokeepthechainmovingatitsfastestrate.Donot
spinthewheelswhiletrenching.

•Alwaysusefullthrottle(maximumenginespeed)when

trenching.

•Alwaystrenchwhilethemachineismovingintheforward

direction.

•Trenchwiththechainata45-to60-degreeanglefor

bestresults.

•Youcandigatrenchfasterbycontrollingthedepthand

adjustingtheboomperiodically .

•Ifthetrencherbindsinthesoil,reversethechain

direction.Oncethechainisloose,changechaindirections
andcontinuetrenching.

•Ifyouneedthenishedtrenchtobecleanerthanwhatis

possiblewiththetrencher,youcanpurchaseacrumber
fromanAuthorizedToroServiceDealer.Thecrumber,
whichmountsontotherestraintbar,scrapesthetrench
cleanasyoudig.

•Ifthediggingspeedofthetrencheristooslowortoo

fast,adjustit.

•Usethecorrectchainforthegroundconditions;referto

SelectingtheProperChain(page13).

•Toobtainmaximumdiggingefciencyfromthetrencher,

alwayskeepgoodsharpteethatthenecessaryspaces.As
teethbecomeworn,replacethemimmediately.

•Somegroundconditionsmayrequireafasterchainspeed.

Movethechainspeedcontrolfurtherforwardfromthe
NEUTRALposition.Youcanreducethelifeofthedigging
chainbyusingitathigherchainspeedsforanextended
time.

17

Maintenance

GreasingtheTrencher

ServiceInterval:Every50hours

1.Cleanthegreasettingswitharag.

2.Connectthegreaseguntothegreasettingforthe
bearingofthelowerliftcylinder,andapply3pumpsof
greasetothettings(Figure28,Figure29,andFigure

30).

3.Wipeupanyexcessgrease.

Figure30

ServicingtheTrencherDigging Chain

CheckingtheChainTension

Figure28

Figure29

ServiceInterval:Aftertherst10hours

Beforeeachuseordaily

1.Starttheengine.

2.Makeatrenchabout3m(10ft)long.

3.Stopthetrencherchainandlifttheboomoutofthe
trench.

4.Movetheboomtothehorizontalposition(Figure31).

Figure31

1.Lowerwearstrip

2.51to76mm(2to3inch)
gap

5.Shutofftheengineandremovethekey.

18

3.Chain

6.Measurethedistancebetweenthechainandthebottom
ofthelowerwearstrip(Figure31).

•Ifthegapbetweenthelowerwearstripandthe

chainis51to76mm(2to3inch),thechaintension
iscorrect(Figure31).

•Ifthegapissmallerthat51mm(2inch),thechain

tensiontootight;refertoDecreasingtheChain

Tension(page19).

•Ifthegapislargerthat76mm(3inch),thechain

tensiontooloose;refertoIncreasingtheChain

Tension(page20).

Note:Thechaintensionhasasignicantaffecton
theproductivityofthemachine;setthechaintension
aslooseaspossible.

DecreasingtheChainTension

WARNING

2.Locatethebleedplug(hex-socket)atthesideplateon
therightsideoftheboom(Figure33).

Ifyouremovethegreasettingfromtheboom
beforeyoureleasethepressureinthesystem,
personalinjurymayresult.

Beforeremovingthegreasetting,loosen(butdo
notremove)theplugontheoppositesideofthe
boom.

1.Attheleftsideoftheboom,loosenthe4boltsthat
securethelockbarsandthesideplates(Figure32).

Figure33

1.Bleedplug

3.Slowlyrotatethebleedplugcounterclockwise2or3
revolutions,andallowthegreasetoowfromaround
theplug(Figure33).

Note:Thechaintensionwilldecreaseasthegap
betweenthechainandthewearstripincreases.

4.Whenyouachievea51to76mm(2to3inch)gap
betweenthechainandthewearstrip,tightentheplug
(Figure32andFigure33).

5.Torquethe4bolts(Figure32)thatsecurethelockbars
andthesideplatesto190to215N-m(140to159ft-lb).

6.PerformthestepsinCheckingtheChainTension(page

18).

1.Bolt

2.Lockbars

Figure32

3.Sideplate

19

IncreasingtheChainTension

g0359 03

2.Cleantheareaaroundthedustcapwithacleaning
solvent(Figure34).

WARNING

Ifyouremovethegreasettingfromtheboom
beforeyoureleasethepressureinthesystem,
personalinjurymayresult.

Beforeremovingthegreasetting,loosen(butdo
notremove)theplugontheoppositesideofthe
boom.

GreaseType:Lithium-basedgrease

1.Locatethecapforthegreasettingatthesideplateon
theleftsideoftheboom(Figure34).

3.Useaneedle-noseplierstorotatethedustcap
counterclockwiseandremovethecapfromthegrease
tting(Figure34).

4.Loosentheboltsthatsecurethelockbarsandtheside
platesontheleftsideoftheboom(Figure32).

•4boltsfortheshortboom(Figure34)

•5boltsforthelargeboom(Figure35)

Figure35

5.Connectagreasegunwiththespeciedgreasetothe
greasetting.

Figure34

1.Bolt

2.Lockbar5.Dustcap

3.Sideplate

4.Greasetting

6.Whileobservingthechaingap,pumpthegreasegun
untilthegapbetweenthewearstripandthechainis51
to76mm(2to3inches);refertoFigure31.

7.Removethegreasegunfromthettingandinstallthe
dustcap.

8.Torquethe4bolts(Figure32)thatsecurethelockbars
andthesideplatesto190to215N-m(140to159ft-lb).

9.PerformthestepsinCheckingtheChainTension(page

18).

20

TorquingtheFastenersontheChain
DriveSprocket

CheckingtheTrencherChainWear
StripandWearChannel

ServiceInterval:Aftertherst10hours

Aftertherst25hours

Torquethe8studsandnutsthatsecurethesprocketforthe
diggingchaintotheplanetarydrivehousingto109to314
N∙m(81to99ft-lb);referto(Figure36).

Note:Thetorquespecicationsarefordrythreadsonly.

Figure36

ServiceInterval:Beforeeachuseordaily

1.Liftthechainatthewearstripatthetopoftheboom,
andcheckthewearstripforsignsofdamageor
excessivewear(Figure37).

Note:Ifthewearstripiswornthroughtotheframe
oftheboom,replacethewearstrip;refertoReplacing

theTrencherChainWearStrip(page22).

Figure37

Thediggingchainhasbeenremovedforclarity.

1.Wearstrip3.Wearchannel

2.Boom

2.Checkthewearchannelatthebottomoftheboomfor
signsofdamageandexcessivewear(Figure37).

Note:Ifthewearchanneliswornthroughtothe
bracketofthechannel,replacethewearchannel;refer
toReplacingtheTrencherWearChannel(page22).

21

ReplacingtheTrencherChainWear
Strip

1.Loosenthetrencherchain;refertoDecreasingthe

ChainTension(page19).

2.Liftthechainatthetopoftheboom,andinstallblocks
betweenthechainandtheboom(Figure38).

Note:Supportingthechainatthebottomofthe
boomhelpsbyliftingthechainabovethewearstrip.

4.Removethewearstrip(Figure39).

5.Cleanthethreadsofthebolts.

6.Applymedium-grade(serviceremovable)
thread-lockingcompoundtothethreadsofthebolts.

7.Aligntheholesofthenewwearstripwiththeholesin
thetopoftheboom(Figure39).

8.Securethewearstriptothetopoftheboomwiththe
boltsthatyoupreviouslyremoved(Figure39).

9.Removethewoodblocksandlowerthechainontothe
boom.

10.Adjustthechaintensionofthetrencher;referto

CheckingtheChainTension(page18).

ReplacingtheTrencherWearChannel

1.Loosenthetrencherchain;refertoDecreasingthe

ChainTension(page19).

2.Removethe10boltsthatsecurethewearchannelto
thebottomleftandbottomrightsidesoftheboom
(Figure40).

Figure38

1.Blocks

2.Diggingchain5.Wearchannel

3.Wearstrip

4.Support

3.Removethe5boltsthatsecurethewearstriptothetop
oftheboom(Figure39).

Figure40

Thediggingchainhasbeenremovedforclarity.

1.Bolt3.Boom

2.Wearstrip

3.Removethetrencherwearchannel(Figure40).

4.Cleanthethreadsofthebolts.

5.Applymedium-grade(serviceremovable)
thread-lockingcompoundtothethreadsofthebolts.

6.Aligntheholesofthenewwearchannelwiththeholes
inthebottomleftandbottomrightsidesoftheboom
(Figure40).

Figure39

Thediggingchainhasbeenremovedforclarity.

1.Bolt2.Wearstrip

7.Securethewearchanneltothebottomoftheboom
withtheboltsthatyoupreviouslyremoved(Figure40).

8.Adjustthechaintensionofthetrencher;referto

CheckingtheChainTension(page18).

22

ReplacingtheDiggingChain

RemovingtheDiggingChain

PreparingtoRemovetheDiggingChain

1.Startthemachineandmovetheboomtothefullup
position.

2.Rotatethediggingchainuntilthemasterpinis
positionedatthetopoftheidlerwheeloftheboom
(Figure42).

3.Turnthemachineoff,andremovethekey.

4.Removethebleedplugfromthechaintensionerofthe
boom;refertoCheckingtheChainTension(page18).

Note:Theidlerwheeloftheboomshouldmove
forwardanddownasthechaintensiondecreases.

5.Installthebleedcap.

6.Startthemachine,movetheboomtothehorizontal
position,turnthemachineoffandremovethekey.

RemovingtheMasterPinintheDiggingChain

1.Countingfromthemasterpin,looptheliftingstrap
aroundthechainatthediggingtoothofthefthor
sixthlinkbelowandforwardoftheidlerwheel(Figure

41).

2.Withthestrapattachedtotheliftingequipment,raise
theliftingstrapenoughtosupportthediggingchain.

3.Clamptheendsofthechainwithawithachainclamp
atthelinkrollersateithersideoftheinnerandouter
platesatthemasterpin(Figure41).

Figure42

1.Masterpin

2.Safetypin

3.Safetypin(bent30°to
45°)

Note:Discardthesafetypin.

5.Removethemasterpinandtherollerforthemaster
pin(Figure42).

Note:Retainthemasterpinandtherollerfor
installingthereplacementchain.

RemovingtheDiggingChainfromtheMachine

1.Lowertheliftingequipmentuntiltheendofthedigging
chainislayingontheground(Figure46).

2.Removetheliftingstrap.

3.Startthemachineandlowertheboomuntilthebottom
idlerwheelispositioned31to36cm(12to14inches)
abovetheground(Figure43).

Figure41

1.Chainclamp

2.Masterpinhole

4.Straightenorcutoffthetailofthesafetypinand
removethepin(Figure42).

Figure43

1.Diggingchain

2.Idlerwheel

3.Liftingstrap

4.Clearance31to36cm(12

4.Startthemachineandmovethetrencherdrivecontrol
totheslowforwardchainspeedposition.

23

to14inches)

5.Whenthediggingchainhasclearedthedrivesprocket,
movethetrencherdrivecontroltotheNEUTRAL
position,turnthemachineoff,andremovethekey
(Figure43).

6.Wraptheliftingstraparoundthediggingchainat
theidlerwheel,andattachthestraptothelifting
equipment(Figure43).

7.Raisetheliftingequipmentandremovethedigging
chainfromtheboom(Figure43).

InstallingtheDiggingChain

PreparingtoInstalltheDiggingChain

1.Startthemachineandmovetheboomtothefullup
position.

2.Settheparkingbrake,turnthemachineoff,and
removethekey.

3.Removethebleedplugfromthechaintensionerofthe
boom;refertoCheckingtheChainTension(page18).

4.Movetheidlerwheeloftheboomforwardanddown.

5.Installthebleedcap.

AligningtheDiggingChain

Thisprocedurerequires2peopletoalignthediggingchainto
themachine.

1.Routetheendsoftheliftingstrapforwardofthe
sprockethub,oneithersideofthedrivesprocket,and
uppastthedirtdeector(Figure45).

Note:Movethedirtdeectorupandawayfromthe
liftingstrap.

6.Startthemachine,movetheboomtothehorizontal
position,turnthemachineoff,andremovethekey.

7.Laythediggingchainonthegroundinastraightline,
belowtheliftingequipmentsuchasahoist,andwith
thecuttingfaceoftheteethpointingtowardthepath
whereyouwillmovethemachine(forward)toposition
itoverthediggingchain(Figure44).

Figure44

1.Liftingstrap2.Diggingchain(teethdown
andforward)

8.Attheforwardendofthechain,loopa3.65m(12
foot)liftingstrapwithaliftingcapacityof181.4kg
(400lb)aroundthechainatthediggingtoothofthe
thirdorfourthlinkofthechain(Figure44).

9.Startthemachineandpositionitwithtrencheroverthe
diggingchainandwiththeliftingstrapforwardofthe
drivesprocketofthetrencher(Figure44).

Note:Whenpositionedcorrectly,theboomofthe
trencherisalignedwiththediggingchain.

Figure45

1.Liftingstrap

2.Dirtdeector

3.Diggingchain

4.Drivesprocket

5.Upperwearstrip

2.Connecttheendsoftheliftingstraptothelifting
equipment,andraisetheendofthechainuntilthe
drivepinsengagethedrivesprocket(Figure45).

3.Startthemachineandmovethetrencherdrivecontrol
totheslowforwardchainspeedposition.

Important:Ifthechainisnotalignedorengaged
withthedrivesprocket,turnthemachineoff,
removethekey,andalignthechaintothedrive
sprocket.

Note:Themachinedrivesthechainontotheupper
wearstripoftheboom.

Note:Maintaintensiononthestrapuntiltheendof
thechainisontheupperwearstrip.

4.Lowertheliftingstrapasthechainmovesaroundthe
sprocketandintopositionontheupperwearstrip.

5.MovethetrencherdrivecontroltotheNEUTRAL
positionwhentheendofthechainispositionedontop
oftheidlerwheeloftheboom(Figure46).

10.Turnthemachineoffandremovethekey .

24

Figure46

1.Liftingstrap

2.Diggingchain

6.Shutoffthemachineandremovethekey.

7.Removetheliftingstrapfromthemachine.

3.Idlerwheel

Storage

1.Beforestoringthemachine,brushoffthedirtfrom
theattachment.

2.Checktheconditionofthediggingchain.Adjustand
lubricatethechain.Replaceanywornordamaged
parts.

3.Checkandtightenallbolts,nuts,andscrews.Repairor
replaceanypartthatisdamagedorworn.

4.Ensurethatallhydrauliccouplersareconnected
togethertopreventcontaminatingthehydraulicsystem.

5.Paintallscratchedorbaremetalsurfaceswithpaint
availablefromanAuthorizedServiceDealer.

6.Storetheattachmentinaclean,drygarageorstorage
area.Coverthetrenchertoprotectitandkeepitclean.

LinkingtheDiggingChain

1.Attheendofthechainlayingontheground,loopthe
liftingstraparoundthechainatthediggingtoothof
thefthorsixthlinkofthechain(Figure46).

2.Raisethechainandpositionitaroundtheidlerwheel
(Figure46andFigure41).

Note:Rotatetheaugerasnecessarytoengagethe
teethofaugerdrivesprocketwiththediggingchain.

3.Clamptheendsofthechainwithawithachainclamp
atthelinkrollersateithersideoftheinnerandouter
platesatthemasterpin(Figure41).

4.Aligntheholeofalinkrollerwiththeholesintheinner
platesattheendofthechain(Figure42).

5.Aligntheholesintheinnerplatesandtherollerofthe
chainwiththeholesintheouterplatesoftheotherend
ofthechain(Figure42).

6.Alignthemasterpinwiththeholeinthepinparallel
withthechainplatesforwardoftheidlerwheel(Figure

42).

7.Insertthemasterpinthroughthediggingchainplates.

8.Insertthesafetypinthroughthemasterpinwiththe
headofthepintowardtheidlerwheel(Figure42).

Important:Donotinstallausedsafetypin.Only
useanewsafetypin.

9.Removetheliftingstrapandthechainclamp.

10.Bendthetailofthesafetypindown30°to45°(Figure

42).

11.Adjustthetensionofthediggingchain;referto

CheckingtheChainTension(page18).

25

Troubleshooting

Problem

Thechaindoesnotturn.

Thetrencherdoesnotdigfastenough.

Thechainturnsinthewrongdirection.1.Thehydraulichosesarereversed.1.Disconnectthereversedhosesand

1.Ahydraulicttingisnotcompletely
connected.

2.Ahydraulicttingisdamaged.2.Replacethedamagedtting.

3.Thereisanobstructioninahydraulic
hose.

4.Anauxiliaryvalveonthemachineis
notopening.

5.Theboom-endbearinghasfailed.

6.Thediggingchainistootight.6.Adjustthetensiononthediggingchain.

7.Thereissandbuildupinthetoothroot
ofthedrivesprocket.

8.Thehydraulicmotororthechaindrive
hasfailed.

1.Theteethareworn.1.Replaceanywornteeth.

2.Thereisarestrictioninahydraulic
hose.

3.Thehydraulicsystemistoohot.

4.Thereliefvalveissetbelow
specications.

PossibleCauseCorrectiveAction

1.Checkandtightenallttings.

3.Findandremovetheobstruction.

4.Repairthevalve.

5.Replacethebearing.

7.Raisethetrencher,runthechain
backward,thendecreasethechain
tension.

8.ContactanAuthorizedServiceDealer.

2.Checkthehosesandrepairany
problemsfound.

3.Shutdownthesystemandallowitto
cool.

4.ContactanAuthorizedServiceDealer.

installthemcorrectly .

Thebearing-caselubeiscontaminated.

1.Thellplugisleaking.1.Ifthereismoisturearoundthewheel
plug,changetheoilandreplacethe
plugandtheplugO-ring.

2.TheO-ringonthemotorhasfailed.2.ContactanAuthorizedServiceDealer.

3.Thesealhasfailed.3.ContactanAuthorizedServiceDealer.

26

Notes:

TheT oroWarranty

ALimitedWarranty

Underground

Equipment

ConditionsandProductsCovered

TheToroCompanyanditsafliate,T oroWarrantyCompany,pursuant
toanagreementbetweenthem,jointlywarrantyourToroUnderground
Equipment(“Product”)tobefreefromdefectsinmaterialsorworkmanship.
Whereawarrantableconditionexists,wewillrepairtheProduct
atnocosttoyouincludingdiagnostics,labor,andparts.
ThefollowingwarrantyappliesfromthedatetheProductisdeliveredtothe
originalretailpurchaserorrentalowner.

ProductsWarrantyPeriod

EnginePoweredUnits&FluidMixers

AllSerializedAttachments
RockHammer6months
Engines

1yearor1000operatinghours,
whicheveroccursrst
1year

Throughenginemanufacturers:
2yearsor2000operatinghours,
whicheveroccursrst

InstructionsforObtainingWarrantyService

YouareresponsiblefornotifyingtheUndergroundDealerfromwhomyou
purchasedtheProductassoonasyoubelieveawarrantablecondition
exists.IfyouneedhelplocatingaUndergroundDealer ,orifyouhave
questionsregardingyourwarrantyrightsorresponsibilities,youmay
contactusat:

ToroCustomerCare
ToroWarrantyCompany

811 1LyndaleAvenueSouth

Bloomington,MN55420-1196
TollFreeat855-493-0088(U.S.Customers)
1-952-948-4318(InternationalCustomers)

OwnerResponsibilities

AstheProductowner,youareresponsibleforrequiredmaintenanceand
adjustmentsstatedinyourOperator'sManual.Failuretoperformrequired
maintenanceandadjustmentscanbegroundsfordisallowingawarranty
claim.

ItemsandConditionsNotCovered

Notallproductfailuresormalfunctionsthatoccurduringthewarranty
periodaredefectsinmaterialsorworkmanship.Thiswarrantydoesnot
coverthefollowing:

•Productfailureswhichresultfromtheuseofnon-T ororeplacement

parts,orfrominstallationanduseofadd-on,ormodiednon-Toro
brandedaccessoriesandproducts.Aseparatewarrantymaybe
providedbythemanufactureroftheseitems.

•Productfailureswhichresultfromfailuretoperformrecommended

maintenanceand/oradjustments.Failuretoproperlymaintainyour
ToroproductpertheRecommendedMaintenancelistedinthe
Operator’sManualcanresultinclaimsforwarrantybeingdenied.

•ProductfailureswhichresultfromoperatingtheProductinanabusive,

negligent,orrecklessmanner.

•Partssubjecttoconsumptionthroughuseunlessfoundtobedefective.

Examplesofpartswhichareconsumed,orusedup,duringnormal
Productoperationinclude,butarenotlimitedto:brakes,lters,lights,
bulbs,belts,tracksortires,diggingteeth,diggingbooms,digging,

drive,ortrackchains,trackpads,drivesprockets,idlers,rollers,
blades,cuttingedges,orothergroundengagingcomponents.

•Failurescausedbyoutsideinuence.Conditionsconsideredtobe

outsideinuenceinclude,butarenotlimitedto,weather,storage
practices,contamination,useofunapprovedfuels,coolants,lubricants,
additives,water,orchemicals,etc.

•Failureorperformanceissuesduetotheuseoffuels(e.g.gasoline,

diesel,orbiodiesel)thatdonotconformtotheirrespectiveindustry
standards.

•Normalnoise,vibration,wearandtear ,anddeterioration.

•Normal“wearandtear”includes,butisnotlimitedto,damagetoseats

duetowearorabrasion,wornpaintedsurfaces,scratcheddecals,etc.

•Haulingexpenses,traveltime,mileage,orovertimeassociatedwith

transportingproducttotheauthorizedT orodealer.

Parts

Partsscheduledforreplacementasrequiredmaintenanceinthe
Operator’sManual,arewarrantedfortheperiodoftimeuptothescheduled
replacementtimeforthatpart.Partsreplacedunderthiswarrantyare
coveredforthedurationoftheoriginalproductwarrantyandbecomethe
propertyofT oro.T orowillmakethenaldecisionwhethertorepairany
existingpartorassemblyorreplaceit.Toromayuseremanufacturedparts
forwarrantyrepairs.

MaintenanceisatOwner’sExpense

Enginetune-up,lubrication,cleaningandpolishing,replacementoflters,
coolant,andcompletingrecommendedmaintenancearesomeofthe
normalservicesT oroproductsrequirethatareattheowner’sexpense.

GeneralConditions

RepairbyanAuthorizedToroUndergroundDealerisyoursoleremedy
underthiswarranty.

NeitherTheToroCompanynorToroWarrantyCompanyisliablefor
indirect,incidentalorconsequentialdamagesinconnectionwiththe
useoftheToroProductscoveredbythiswarranty,includingany
costorexpenseofprovidingsubstituteequipmentorserviceduring
reasonableperiodsofmalfunctionornon-usependingcompletion
ofrepairsunderthiswarranty.ExceptfortheEmissionswarranty
referencedbelow,ifapplicable,thereisnootherexpresswarranty.All
impliedwarrantiesofmerchantabilityandtnessforusearelimitedto
thedurationofthisexpresswarranty.

Somestatesdonotallowexclusionsofincidentalorconsequential
damages,orlimitationsonhowlonganimpliedwarrantylasts,sotheabove
exclusionsandlimitationsmaynotapplytoyou.Thiswarrantygivesyou
speciclegalrights,andyoumayalsohaveotherrightswhichvaryfrom
statetostate.

Noteregardingenginewarranty:

TheEmissionsControlSystemonyourProductmaybecoveredby
aseparatewarrantymeetingrequirementsestablishedbytheU.S.
EnvironmentalProtectionAgency(EP A)and/ortheCaliforniaAirResources
Board(CARB).Thehourlimitationssetforthabovedonotapplytothe
EmissionsControlSystemWarranty.RefertotheEngineEmissionControl
WarrantyStatementsuppliedwithyourproductorcontainedintheengine
manufacturer’sdocumentationfordetails.

CountriesOtherthantheUnitedStatesorCanada

CustomerswhohavepurchasedT oroproductsexportedfromtheUnitedStatesorCanadashouldcontacttheirT oroDistributor(Dealer)toobtain
guaranteepoliciesforyourcountry ,province,orstate.IfforanyreasonyouaredissatisedwithyourUndergroundDealer’sserviceorhavedifculty
obtainingguaranteeinformation,contacttheToroimporter.

AustralianConsumerLaw:AustraliancustomerswillnddetailsrelatingtotheAustralianConsumerLaweitherinsidetheboxoratyourlocalT oro
Dealer.

374-0292RevC