Toro 25452, 25452E Operator's Manual

FormNo.3377-976RevA

Backhoe

RT1200Trencher

ModelNo.25452—SerialNo.314000001andUp
ModelNo.25452E—SerialNo.314000001andUp

Registeratwww.T oro.com.
OriginalInstructions(EN)

*3377-976*A

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhassafety
messagesidentiedbythesafetyalertsymbol(Figure2),
whichsignalsahazardthatmaycauseseriousinjuryordeath
ifyoudonotfollowtherecommendedprecautions.

Introduction

Thisattachmentisdesignedtodiginsoiltoburycablingand
pipingforvariousapplications.Itisnotintendedtocutrock,
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.Safetyalertsymbol

Thismanualuses2wordstohighlightinformation.
Importantcallsattentiontospecialmechanicalinformation
andNoteemphasizesgeneralinformationworthyofspecial
attention.

Figure1

1.Locationofthemodelandserialnumberplate

©2014—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Contactusatwww.Toro.com.

2

PrintedintheUSA

AllRightsReserved

Contents

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

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

Setup............................................................................6

1PreparingtoInstalltheAttachmentontothe

Machine.............................................................7

2InstallingtheBackhoeFrameandSwingTower

ontotheMachine.................................................7

3InstallingtheBackhoeWiringHarness.....................8

4InstallingtheWalkwaytotheMachine......................9

5ConnectingtheControlstotheWiring

Harness.............................................................11

6InstallingtheControlsCoverandthe

Panels...............................................................13

7InstallingtheStabilizers........................................14

8InstallingtheStabilizerHydraulicCylinders..............14

9InstallingtheBoom..............................................15

10InstallingtheBoomHydraulicCylinder.................16

11ConnectingtheHydraulicPressureandReturn

Hoses................................................................16

12BleedingtheStabilizerCylinders...........................17

13ConnectingtheHydraulicHosestotheBoom

HydraulicCylinder..............................................17

14BleedingtheBoomElevationCylinder..................18

15InstallingtheDipper...........................................19

16InstallingtheDipperHydraulicCylinder................20

17InstallingtheBucket...........................................21

18ConnectingtheHydraulicHosestotheDipper

andBucketHydraulicCylinders............................22

19BleedingtheHydraulicSystem.............................25

20TestingtheOperator-presenceSwitchandthe

E-stopSwitch.....................................................26

21LubricatingtheStabilizers....................................27

ProductOverview.........................................................27

Controls...............................................................27

BoomControls...................................................27

DipperandBucketControls.................................28

Swing-lockPinandBoom-lockHandle..................28

Specications........................................................30

Operation....................................................................30

UsingtheStabilizers................................................30

UsingtheBoomandSwingLocks.............................32

PreparingtoUsetheBackhoe..................................33

ControllingtheBackhoe..........................................35

DiggingwiththeBackhoe........................................36

MovingtheBackhoeandtheMachine.......................36

TransportingtheMachine........................................37

OperatingTips......................................................37

Maintenance.................................................................39

LubricatingtheBackhoe..........................................39

RaisingandLoweringtheSeat..................................41

Storage........................................................................42

Safety

DANGER

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

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

WARNING

Whengoingupordownhill,themachinecould
overturniftheheavyendistowardthedownhill
side.Someonemaybepinnedorseriouslyinjured
bythemachineifitoverturns.

Operateupanddownslopeswiththeheavyendof
themachineuphill.Anattachedbackhoewillmake
thefrontendheavy.

WARNING

Lightningcancausesevereinjuryordeath.

Iflightningisseenorthunderisheardinthearea,
donotoperatethemachine;seekshelter.

CAUTION

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

•Keepyourbodyandhandsawayfrompin-hole
leaksornozzlesthatejecthigh-pressure
hydraulicuid.

•Usecardboardorpapertondhydraulicleaks;
neveruseyourhands.

3

CAUTION

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

•Weargloveswhenmaintaininghydraulic
components.

•Allowthetractionunitandallattachmentsto
coolbeforetouchinghydrauliccomponents.

•Donottouchhydraulicuidspills.

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaofpotential
danger.Replaceanydecalthatisdamagedorlost.

125-6690

1.Wholebodycrushinghazard—keepawayfromthemachine
wheninoperation.

4

125-8474

1.Warning—readtheOperator’sManual.

2.Tipping/crushinghazard—readtheOperator’sManual.

3.Explosionhazard;electricshockhazard—donotdiguntilyou
havecalledlocalutilities.

4.Movethebackhoeboomtotheleft.13.Movethebackhoearmforward.

5.Lowerthebackhoeboom.14.Dumpthebucket.

6.Movethebackhoeboomtotheright.15.Movethebackhoearmrearward.

7.Raisethebackhoeboom.

8.Lowertheleftstabilizer.17.Starttheengine.

9.Raisetheleftstabilizer.

10.Lowertherightstabilizer.

11.Raisetherightstabilizer .

12.Raisethebucket.

16.Stoptheengine.

1.Driveforward

2.Drivereverse6.Engine—Decreasespeed

125-8476

1.Unlocktheboomonly
whenintheoperating
position.

2.Locktheboombefore
leavingtheoperating
position.

3.ReadtheOperator’s
Manual.

3.Lowerthebackllblade

4.Raisethebackllblade

127-1827

5.Engine—Increasespeed
(rpm)

(rpm)

7.Engine—start

5

Setup

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescription

1

2

3

4

5
6

7

8

9

10

11

Qty.

Nopartsrequired

Backhoeframeandswingtower
Bolt(1-1/4inchx3-1/2inches)
Washer(1-1/4inch)
Locknut(1-1/4inch)

Backhoewiringharness1Installthebackhoewiringharness.

Walkway1
Handrail1
Pivotsupportbracket1
Greasetting
Bolt(M12x40mm)
Locknut(M12)
E-stopswitch1
Operator-presenceswitch

Nopartsrequired

Stabilizer
Mountingpin2
Snapring
Stabilizerhydrauliccylinder
Spacer
Cylindermountingpin(1-1/4x7-1/2

inch)
Retainerpin2
Hex-headbolt(3/8x1–1/2inch)
Washer(3/8inch)
Locknut(3/8inch)
Boom1
Boompivotpin2
Hex-headbolt(1/2x2inch)
Washer(1/2inch)
Spacer
Locknut(1/2inch)
Boomhydrauliccylinder1
Boomcylindermountingpin1
Hex-headbolt(3/8x1-1/2inch)
Locknut(3/8inch)
Hydraulichose(0.75x28.3inches)
Hydraulichose(0.75x29.4inches)

–

1
4
4
2

1
5
5

1

–

2

4
2
2

2

2
2
2

2
2
2
2

1
1
1
1

Preparetoinstalltheattachmentonto
themachine.

Installthebackhoeframeandswing
towerontothemachine.

Installthewalkway.

Routeandconnectthecontrolstothe
wiringharness.

Installthecontrolscoverandthepanels.

Installthestabilizers.

Installthestabilizerhydrauliccylinders.

Installtheboom.

Installtheboomcylinder.

Connectthehydraulicpressureand
returnhoses.

Use

12
13

Nopartsrequired

Hydraulichose(0.75x31.5inches)
Hydraulichose(0.75x32.4inches)

6

–

1
1

Bleedthestabilizercylinders.

Connectthehydraulichosestothe
boomhydrauliccylinder.

ProcedureDescription

Qty.

Use

14

15

16

17

18

Nopartsrequired

Dipper1
Dipperpivotpin(2x9-3/4inches)
Tabbedwasher1
Slotted-spannernut(1-3/4inch)
Retainerpin1
Greasetting
Hydrauliccylinder1
Dippercylinderpin(1-1/2x5.83inches)
Snapring
Retainerpin1
Bucket1
Bucketpin2
Snapring
Bolt(3/8x1–1/2inch)
Lockwasher2
Locknut2
Hydraulichose(0.75x63.2inches)
Hydraulichose(0.75x65.6inches)
Hydraulichose(0.75x104.7inches)
Hydraulichose(0.75x108.9inches)
Anglestrap4
Hex-headbolt(5/16x3-1/4inch)
Washer(5/16inch)
Locknut(5/16inch)

–

1

1

2

1
1

2
2

1
1
1
1

4
8
4

Bleedtheboomelevationcylinder.

Installthedipper.

Installthedipperhydrauliccylinder.

Installthebucket.

Connectthehydraulichosestothe
boomhydrauliccylinder.

19

20

21

Important:Ensurethatthereisadequatespacetomove

thestabilizersandthebackhoearmtofullextension
andthatthemachineandtheattachmentsareclearof
obstructions.

Note:Forillustrationsoftheattachmentinstalledonthe
tractionunit,refertoProductOverview(page27).

Nopartsrequired

Nopartsrequired

Nopartsrequired

–

–

–

Bleedthehydraulicsystem.

Testtheoperator-presenceswitchand
theE-stopswitch.

Lubricatethestabilizers.

1

PreparingtoInstallthe AttachmentontotheMachine

NoPartsRequired

Procedure

1.Parkthemachineonalevelsurface.

2.Lowertheattachment(s)totheground.

3.Stoptheengineandremovetheignitionkey.

7

2

InstallingtheBackhoeFrame
andSwingTowerontothe
Machine

Partsneededforthisprocedure:

1

Backhoeframeandswingtower

4

Bolt(1-1/4inchx3-1/2inches)

4

Washer(1-1/4inch)

2

Locknut(1-1/4inch)

Procedure

WARNING

Liftingheavymachinesandattachmentsimproperly
couldresultinseriousinjuryorevendeath.

Whenliftingheavymachinesandattachments,use
liftingequipment,suchaschainsandstraps,thatis
ratedfortheweightoftheequipment.

1.Attachtheliftingequipmenttothebackhoeframeand
swingtowerandsetitinpositionatthefrontofthe
machine(Figure3).

Important:Ensurethattheliftingequipmenthas
aliftingcapacityofatleast1058kg(2,332lb).

Figure3

2.Aligntheholesinthebackplateandthemounting
armsofthebackhoeframewiththemountingholes
inthemachine(Figure4).

Figure4

1.Sidemountingholeonthe
tractionunit(2)

2.Frontmountingholes

3.Holeinmountingarmof
thebackhoe(2)

4.Holesinthebackplateof
thebackhoe

3.Securethebackhoeframeandswingtowertothefront
ofthemachinewith4bolts(1-1/4inchx3-1/2inches),
4washers(1-1/2inch),and2locknuts(1-1/4inch).

Note:Installthe2boltsthroughthefrontmounting
holessothattheboltthreadsappearoutfromthefront
ofthemachine.

4.Torqueall4boltsandnutsto678to813N-m(500
to600ft-lb).

8

3

InstallingtheBackhoeWiring
Harness

Partsneededforthisprocedure:

1Backhoewiringharness

Procedure

1.RotatethebatterydisconnecttotheOffposition;refer
tothetractionunitOperator’sManual.

2.Removetheleft-sidepanelofthemachine;refertothe
tractionunitOperator’sManual.

3.Gototheleftsideofthemachine,locatethebranchof
themachinewiringharnesswitha12-socketconnector
locatedjustinsidetheleftrailframenearthetopofthe
tire(Figure5),andremovethecoverontheconnector.

Figure6

Figure5

1.Backhoewiringharness3.12-socketconnector

2.12-pinconnector

4.Locatethe12-pinconnectoronthebackhoewiring
harnessandinsertitthroughtheholeinthesideofthe
leftrailframe(Figure5andFigure6).

1.Backhoewiringharness

5.Connectthe12-pinconnectoronthebackhoewiring
harnesstothe12-socketconnectoronthemachine
wiringharness(Figure5).

6.Routethebackhoewiringharnessforward,alongthe
leftrailangeandthebackofthebackhoecontrol
platform(Figure6).

7.Installtheleft-sidepanel;refertothetractionunit
Operator’sManual.

Note:Youwillnishinstallingthewiringharnessafteryou
installthewalkway;referto4InstallingtheW alkwaytothe
Machine(page9).

2.Holeinthesideoftheleft
railframe

9

4

InstallingtheWalkwaytothe
Machine

Partsneededforthisprocedure:

1Walkway

1Handrail

1Pivotsupportbracket

1

Greasetting

5

Bolt(M12x40mm)

5

Locknut(M12)

InstallingthePivotBracket

1.Threadthegreasettingintotheholeinthecylindrical
partofthepivotsupportbracket(Figure7).

Figure8

1.Walkwaysupportbracket4.Walkwaymountbracket

2.Walkway

3.Pivotpin6.Pivotbracketcylinder

2.Applygreasetothegreasettinguntilitisvisible.

Note:Useageneral-purpose,lithium-basedgrease.

Note:Cleanupanyexcessgreaseonthepivotsupport

bracket.

3.Rotatethewalkwayclockwiseuntiltheholeinthe
forward,horizontalangeofthewalkwayalignswith
theholeinthewalkwaysupportbracket(Figure9).

5.Forward,horizontalange
ofthewalkway

Figure7

1.Pivotsupportbracket

2.Locknut—M12(3)4.Bolt—M12X40mm(3)

2.Aligntheholesinthepivotsupportbracketwiththe
holesintheforwardangeofthefueltank(Figure7).

3.Looselyinstallthebrackettothefueltankwith3bolts
(M12x40mm)and3locknuts(M12)asshownin
Figure7.

3.Greasetting

InstallingtheWalkway

1.Insertthepivotpinofthewalkwayintothepivot
bracketcylinder(Figure8).

Figure9

1.Lockingpin3.Walkway

2.Theholesinthewalkway
supportbracketandthe
forward,horizontalange
ofthewalkwayarealigned.

Note:Raiseorlowerthepivotbracketasneededto
aligntheholes(Figure9).

4.Tightentheboltsandlocknutsthatsecurethepivot
supportbrackettotheforwardangeofthefuel-tank
(Figure8).

Note:Torquetheboltsandlocknutsto112to140
N-m(83to103in-lb).

5.Securethewalkwaytothewalkwaysupportbracket
withthelockingpin(Figure9).

10

InstallingtheHandRail

Securethehandrailtothewalkwaywith2bolts(M12x40
mm)and2locknuts(M12)asshowninFigure10.

Figure11

1.Operatorpedestal4.Bolt(4)

2.Controlscover5.Nut(4)—notshown

3.Washer(4)

Figure10

1.Bolts(M12x40mm)3.Locknuts(M12)

2.Handrail4.Walkway

5

ConnectingtheControlstothe WiringHarness

Partsneededforthisprocedure:

1E-stopswitch

1

Operator-presenceswitch

Procedure

1.Removethe4bolts,4washers,and4nutsthatsecure
thecontrolscovertotheoperatorpedestalofthe
backhoe,thenremovethecover(Figure11).

2.Routethebackhoewiringharnessalongtheleft
hydraulictubealongtheoperatorplatform.

3.Routetheharnessupundertheconsoleasshownin
Figure12.

Figure12

Frontview

1.Backhoewiringharness

4.Routethebranchoftheharnesswitha2-socket
connectorthroughtheseat-posttube(Figure13).

11

Figure15

G023522

1

2

3

4

5

6

Figure13

1.Branchinthewiring
harness

2.Seat-posttube

Note:Ensurethatthereisenoughslackinthebranch
oftheharnesstoconnectittotheoperator-presence
switchandtoallowfortheseattorotatefreely.

5.Connectthe2-socketconnectorofthebackhoewiring
harnesstothe2-pinconnectoroftheoperator-presence
switch(Figure14).

1.Console

2.Ten-socketconnectors4.Forkedelectricalterminals

3.Two-pinconnector

7.DisassembletheE-stopswitchassemblyasfollows:

A.Removethebuttoncoverfromthebutton(Figure

16).

Figure16

1.Buttoncover4.Jamnut

2.Screw5.C-clip

3.Button

6.Switch

B.Removethescrewthatsecuresthebuttontothe

switch,andremovethebutton(Figure16).

1.Two-pinconnector,
backhoewiringharness

6.Installthewiringharnessundertheconsoleasshown
inFigure15.

Figure14

2.Operator-presenceswitch

oftheswitch(Figure16).

Note:RetainallthepartsoftheE-stopswitch
assembly.

8.Connectthe2-forkedelectricalterminalstoterminals
AandBwiththeterminalscrewsandthesaddle
washersoftheE-stopswitch(item6.inFigure16)and
tightenthescrews(Figure17).

12

C.RemovetheC-clipandthejamnutfromthebody

Figure17

Bottomview

1.TerminalscrewA

2.E-stopswitch4.TerminalscrewB

3.Saddlewashers

6

InstallingtheControlsCover andthePanels

NoPartsRequired

Procedure

1.InstalltheE-stopswitchassemblyontothecontrols
coverasfollows:

A.Locatethealignmenttangonthebodyofthe

switch(Figure18).

Figure18

1.Switch6.C-clip

2.Alignmenttang

3.Notchinthehole8.Button

4.Jamnut

5.Squaretting

B.Aligntheswitchfromtheinsideofthecontrol

coverandthroughtheholeintheupperright
corner(Figure18).

Note:Ensurethatthealignmenttangonthe
switchalignswiththenotchintheholeforthe
switch.

10.Buttoncover

7.Groove

9.Screw

C.Securetheswitchtothepanelwiththejamnut

(Figure18)thatyouremovedinstepCof5
ConnectingtheControlstotheWiringHarness
(page11).

D.InstalltheC-clip(Figure18)thatyouremoved

instepCof5ConnectingtheControlstothe
WiringHarness(page11)intothegrooveinthe
bodyoftheswitch.

E.Alignthesquarerecessinthebackofthebutton

tothesquarettingoftheE-stopswitch.

F.Securethebuttontotheswitchwiththescrew

(Figure18)thatyouremovedinstepBof5
ConnectingtheControlstotheWiringHarness
(page11).

13

G.Installthebuttoncover(Figure18)thatyou

removedinstepAof5ConnectingtheControls
totheWiringHarness(page11)intothescrew
pocketinthebutton.

2.Aligntheholesofthecontrolscoverwiththeholesin
theoperatorpedestalofthebackhoe(Figure11).

3.Addmedium-grade(serviceremovable)thread-locking
compoundtothe4boltsthatyouremovedinstep1
of5ConnectingtheControlstotheWiringHarness
(page11).

4.Securethecovertothepedestalwiththe4setsof
bolts,washers,andnuts(Figure11)thatyouremoved
instep1of5ConnectingtheControlstotheWiring
Harness(page11).

amountingpin(1-1/2x8-7/8inch)throughthe
bushings(Figure20).

7

InstallingtheStabilizers

Partsneededforthisprocedure:

2

Stabilizer

2Mountingpin

4

Snapring

Procedure

1.Lubricatetheinsidediameterofthebushingsof
thehingeendofastabilizerwithgeneral-purpose,
lithium-basedgrease(Figure19).

Figure20

1.Snapring

2.Mountingpin(1-1/2x8-7/8
inch)

4.Securethemountingpinwith2snapringsasshown
inFigure20.

5.Repeatsteps3through4toinstalltheotherstabilizer
ontheothersideofthebackhoeframe.

3.Lowerbushings

4.Stabilizer

8

InstallingtheStabilizer HydraulicCylinders

Partsneededforthisprocedure:

2

Stabilizerhydrauliccylinder

2

Spacer

2

Cylindermountingpin(1-1/4x7-1/2inch)

2Retainerpin

2

Hex-headbolt(3/8x1–1/2inch)

2

Washer(3/8inch)

2

Locknut(3/8inch)

Figure19

2.Lubricatetheinsidediameterofthelowersetof
bushingsonthefrontandbackplatesofthebackhoe
framewithgrease(Figure19).

3.Alignthebushingsinthestabilizerendwiththelower
setofbushingsinthebackhoeframeandfullyinsert

Procedure

1.Ensurethatthestabilizerisrestingonthefootpad.

2.Lubricatetheinsidediameteroftheuppersetof
bushingsonthefrontandbackplatesofthebackhoe
framewithgeneral-purpose,lithium-basedgrease
(Figure20).

14