Toro Backhoe, RT1200 Trencher User manual

Brand: Toro

Model: Backhoe, RT1200 Trencher

Type: User manual

FormNo.3377-976RevA

Backhoe

RT1200Trencher

ModelNo.25452—SerialNo.314000001andUp

ModelNo.25452E—SerialNo.314000001andUp

Registeratwww.Toro.com.

OriginalInstructions(EN)

*3377-976*A

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

Introduction

Thisattachmentisdesignedtodiginsoiltoburycablingand

pipingforvariousapplications.Itisnotintendedtocutrock,

wood,oranyothermaterialotherthansoil.

Readthisinformationcarefullytolearnhowtooperateand

maintainyourproductproperlyandtoavoidinjuryand

productdamage.Youareresponsibleforoperatingthe

productproperlyandsafely.

YoumaycontactTorodirectlyatwww.Toro.comforproduct

andaccessoryinformation,helpndingadealer,ortoregister

yourproduct.

Wheneveryouneedservice,genuineToroparts,oradditional

information,contactanAuthorizedToroServiceDealer

orToroCustomerServiceandhavethemodelandserial

numbersofyourproductready.Figure1illustratesthe

locationofthemodelandserialnumbersontheproduct.

Writethenumbersinthespaceprovided.

Figure1

1.Locationofthemodelandserialnumberplate

ModelNo.

SerialNo.

Thismanualidentiespotentialhazardsandhassafety

messagesidentiedbythesafetyalertsymbol(Figure2),

whichsignalsahazardthatmaycauseseriousinjuryordeath

ifyoudonotfollowtherecommendedprecautions.

Figure2

1.Safetyalertsymbol

Thismanualuses2wordstohighlightinformation.

Importantcallsattentiontospecialmechanicalinformation

andNoteemphasizesgeneralinformationworthyofspecial

attention.

8111LyndaleAvenueSouth

Bloomington,MN55420

Contactusatwww.Toro.com.

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.

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.

125-8474

1.Warning—readtheOperator’sManual.

10.Lowertherightstabilizer.

2.Tipping/crushinghazard—readtheOperator’sManual.

11.Raisetherightstabilizer.

3.Explosionhazard;electricshockhazard—donotdiguntilyou

havecalledlocalutilities.

12.Raisethebucket.

4.Movethebackhoeboomtotheleft.13.Movethebackhoearmforward.

5.Lowerthebackhoeboom.14.Dumpthebucket.

6.Movethebackhoeboomtotheright.15.Movethebackhoearmrearward.

7.Raisethebackhoeboom.

16.Stoptheengine.

8.Lowertheleftstabilizer.17.Starttheengine.

9.Raisetheleftstabilizer.

125-8476

1.Unlocktheboomonly

whenintheoperating

position.

3.ReadtheOperator’s

Manual.

2.Locktheboombefore

leavingtheoperating

position.

127-1827

1.Driveforward

5.Engine—Increasespeed

(rpm)

2.Drivereverse6.Engine—Decreasespeed

(rpm)

3.Lowerthebackllblade

7.Engine—start

4.Raisethebackllblade

Setup

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescription

Qty.

Use

Nopartsrequired

–

Preparetoinstalltheattachmentonto

themachine.

Backhoeframeandswingtower

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

Washer(1-1/4inch)

Locknut(1-1/4inch)

Installthebackhoeframeandswing

towerontothemachine.

Backhoewiringharness1Installthebackhoewiringharness.

Walkway1

Handrail1

Pivotsupportbracket1

Greasetting

Bolt(M12x40mm)

Locknut(M12)

Installthewalkway.

E-stopswitch1

Operator-presenceswitch

Routeandconnectthecontrolstothe

wiringharness.

Nopartsrequired

–

Installthecontrolscoverandthepanels.

Stabilizer

Mountingpin2

Snapring

Installthestabilizers.

Stabilizerhydrauliccylinder

Spacer

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

inch)

Retainerpin2

Hex-headbolt(3/8x1–1/2inch)

Washer(3/8inch)

Locknut(3/8inch)

Installthestabilizerhydrauliccylinders.

Boom1

Boompivotpin2

Hex-headbolt(1/2x2inch)

Washer(1/2inch)

Spacer

Locknut(1/2inch)

Installtheboom.

Boomhydrauliccylinder1

Boomcylindermountingpin1

Hex-headbolt(3/8x1-1/2inch)

Locknut(3/8inch)

Installtheboomcylinder.

Hydraulichose(0.75x28.3inches)

Hydraulichose(0.75x29.4inches)

Connectthehydraulicpressureand

returnhoses.

Nopartsrequired

–

Bleedthestabilizercylinders.

Hydraulichose(0.75x31.5inches)

Hydraulichose(0.75x32.4inches)

Connectthehydraulichosestothe

boomhydrauliccylinder.

ProcedureDescription

Qty.

Use

Nopartsrequired

–

Bleedtheboomelevationcylinder.

Dipper1

Dipperpivotpin(2x9-3/4inches)

Tabbedwasher1

Slotted-spannernut(1-3/4inch)

Retainerpin1

Greasetting

Installthedipper.

Hydrauliccylinder1

Dippercylinderpin(1-1/2x5.83inches)

Snapring

Retainerpin1

Installthedipperhydrauliccylinder.

Bucket1

Bucketpin2

Snapring

Bolt(3/8x1–1/2inch)

Lockwasher2

Locknut2

Installthebucket.

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)

Connectthehydraulichosestothe

boomhydrauliccylinder.

Nopartsrequired

–

Bleedthehydraulicsystem.

Nopartsrequired

–

Testtheoperator-presenceswitchand

theE-stopswitch.

Nopartsrequired

–

Lubricatethestabilizers.

Important:Ensurethatthereisadequatespacetomove

thestabilizersandthebackhoearmtofullextension

andthatthemachineandtheattachmentsareclearof

obstructions.

Note:Forillustrationsoftheattachmentinstalledonthe

tractionunit,refertoProductOverview(page27).

PreparingtoInstallthe

AttachmentontotheMachine

NoPartsRequired

Procedure

1.Parkthemachineonalevelsurface.

2.Lowertheattachment(s)totheground.

3.Stoptheengineandremovetheignitionkey.

InstallingtheBackhoeFrame

andSwingTowerontothe

Machine

Partsneededforthisprocedure:

Backhoeframeandswingtower

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

Washer(1-1/4inch)

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)

3.Holeinmountingarmof

thebackhoe(2)

2.Frontmountingholes

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).

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.

Figure5

1.Backhoewiringharness3.12-socketconnector

2.12-pinconnector

4.Locatethe12-pinconnectoronthebackhoewiring

harnessandinsertitthroughtheholeinthesideofthe

leftrailframe(Figure5andFigure6).

Figure6

1.Backhoewiringharness

2.Holeinthesideoftheleft

railframe

5.Connectthe12-pinconnectoronthebackhoewiring

harnesstothe12-socketconnectoronthemachine

wiringharness(Figure5).

6.Routethebackhoewiringharnessforward,alongthe

leftrailangeandthebackofthebackhoecontrol

platform(Figure6).

7.Installtheleft-sidepanel;refertothetractionunit

Operator’sManual.

Note:Youwillnishinstallingthewiringharnessafteryou

installthewalkway;referto4InstallingtheWalkwaytothe

Machine(page9).

InstallingtheWalkwaytothe

Machine

Partsneededforthisprocedure:

1Walkway

1Handrail

1Pivotsupportbracket

Greasetting

Bolt(M12x40mm)

Locknut(M12)

InstallingthePivotBracket

1.Threadthegreasettingintotheholeinthecylindrical

partofthepivotsupportbracket(Figure7).

Figure7

1.Pivotsupportbracket

3.Greasetting

2.Locknut—M12(3)4.Bolt—M12X40mm(3)

2.Aligntheholesinthepivotsupportbracketwiththe

holesintheforwardangeofthefueltank(Figure7).

3.Looselyinstallthebrackettothefueltankwith3bolts

(M12x40mm)and3locknuts(M12)asshownin

Figure7.

InstallingtheWalkway

1.Insertthepivotpinofthewalkwayintothepivot

bracketcylinder(Figure8).

Figure8

1.Walkwaysupportbracket4.Walkwaymountbracket

2.Walkway

5.Forward,horizontalange

ofthewalkway

3.Pivotpin6.Pivotbracketcylinder

2.Applygreasetothegreasettinguntilitisvisible.

Note:Useageneral-purpose,lithium-basedgrease.

Note:Cleanupanyexcessgreaseonthepivotsupport

bracket.

3.Rotatethewalkwayclockwiseuntiltheholeinthe

forward,horizontalangeofthewalkwayalignswith

theholeinthewalkwaysupportbracket(Figure9).

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).

InstallingtheHandRail

Securethehandrailtothewalkwaywith2bolts(M12x40

mm)and2locknuts(M12)asshowninFigure10.

Figure10

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

2.Handrail4.Walkway

ConnectingtheControlstothe

WiringHarness

Partsneededforthisprocedure:

1E-stopswitch

Operator-presenceswitch

Procedure

1.Removethe4bolts,4washers,and4nutsthatsecure

thecontrolscovertotheoperatorpedestalofthe

backhoe,thenremovethecover(Figure11).

Figure11

1.Operatorpedestal4.Bolt(4)

2.Controlscover5.Nut(4)—notshown

3.Washer(4)

2.Routethebackhoewiringharnessalongtheleft

hydraulictubealongtheoperatorplatform.

3.Routetheharnessupundertheconsoleasshownin

Figure12.

Figure12

Frontview

1.Backhoewiringharness

4.Routethebranchoftheharnesswitha2-socket

connectorthroughtheseat-posttube(Figure13).

Figure13

1.Branchinthewiring

harness

2.Seat-posttube

Note:Ensurethatthereisenoughslackinthebranch

oftheharnesstoconnectittotheoperator-presence

switchandtoallowfortheseattorotatefreely.

5.Connectthe2-socketconnectorofthebackhoewiring

harnesstothe2-pinconnectoroftheoperator-presence

switch(Figure14).

Figure14

1.Two-pinconnector,

backhoewiringharness

2.Operator-presenceswitch

6.Installthewiringharnessundertheconsoleasshown

inFigure15.

Figure15

1.Console

3.Two-pinconnector

2.Ten-socketconnectors4.Forkedelectricalterminals

7.DisassembletheE-stopswitchassemblyasfollows:

A.Removethebuttoncoverfromthebutton(Figure

16).

G023522

Figure16

1.Buttoncover4.Jamnut

2.Screw5.C-clip

3.Button

6.Switch

B.Removethescrewthatsecuresthebuttontothe

switch,andremovethebutton(Figure16).

C.RemovetheC-clipandthejamnutfromthebody

oftheswitch(Figure16).

Note:RetainallthepartsoftheE-stopswitch

assembly.

8.Connectthe2-forkedelectricalterminalstoterminals

AandBwiththeterminalscrewsandthesaddle

washersoftheE-stopswitch(item6.inFigure16)and

tightenthescrews(Figure17).

Figure17

Bottomview

1.TerminalscrewA

3.Saddlewashers

2.E-stopswitch4.TerminalscrewB

InstallingtheControlsCover

andthePanels

NoPartsRequired

Procedure

1.InstalltheE-stopswitchassemblyontothecontrols

coverasfollows:

A.Locatethealignmenttangonthebodyofthe

switch(Figure18).

Figure18

1.Switch6.C-clip

2.Alignmenttang

7.Groove

3.Notchinthehole8.Button

4.Jamnut

9.Screw

5.Squaretting

10.Buttoncover

B.Aligntheswitchfromtheinsideofthecontrol

coverandthroughtheholeintheupperright

corner(Figure18).

Note:Ensurethatthealignmenttangonthe

switchalignswiththenotchintheholeforthe

switch.

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).

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).

InstallingtheStabilizers

Partsneededforthisprocedure:

Stabilizer

2Mountingpin

Snapring

Procedure

1.Lubricatetheinsidediameterofthebushingsof

thehingeendofastabilizerwithgeneral-purpose,

lithium-basedgrease(Figure19).

Figure19

2.Lubricatetheinsidediameterofthelowersetof

bushingsonthefrontandbackplatesofthebackhoe

framewithgrease(Figure19).

3.Alignthebushingsinthestabilizerendwiththelower

setofbushingsinthebackhoeframeandfullyinsert

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

bushings(Figure20).

Figure20

1.Snapring

3.Lowerbushings

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

inch)

4.Stabilizer

4.Securethemountingpinwith2snapringsasshown

inFigure20.

5.Repeatsteps3through4toinstalltheotherstabilizer

ontheothersideofthebackhoeframe.

InstallingtheStabilizer

HydraulicCylinders

Partsneededforthisprocedure:

Stabilizerhydrauliccylinder

Spacer

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

2Retainerpin

Hex-headbolt(3/8x1–1/2inch)

Washer(3/8inch)

Locknut(3/8inch)

Procedure

1.Ensurethatthestabilizerisrestingonthefootpad.

2.Lubricatetheinsidediameteroftheuppersetof

bushingsonthefrontandbackplatesofthebackhoe

framewithgeneral-purpose,lithium-basedgrease

(Figure20).

3.Insertacylindermountingpin(1-1/4x7-1/2inch)

partwaythroughtheupperbushingintheforwardplate

ofthebackhoeframe(Figure21).

Note:Ensurethatthecross-drilledholeendofthe

cylindermountingpin(inwhichyouinserttheretainer

pin)isforwardofthefrontstabilizerplate.

Figure21

1.Cylindermountingpin

5.Retainerpin

2.Spacer6.Locknut(3/8inch)

3.Hex-headbolt(3/8x1-1/2

inch)

7.Cylinder

4.Flatwasher

Note:Allowthepintoextendabout25mm(1inch)

beyondthebushing.

4.Slipaspacerovertheexposedendofthepinasshown

inFigure21.

5.Removetheplugsfromtheportsofthecylinderand

covertheholeswithacleanrag.

6.Extendthepistonttingofthecylinderandalignthe

holeinthecylinderttingwiththepin.

Note:Residualhydraulicuidmayejectfromthe

cylinderports.

Note:Ensurethatthehydraulicportsofthecylinder

arepositionedup.

7.Fullyinsertthepinthroughthemountingholeinthe

backplate(Figure21).

8.Inserttheretainerpinintothecross-drilledholeinthe

cylindermountingpin,andsecurethepintothefront

stabilizerplatewithahex-headbolt(3/8x1–1/2inch),

awasher(3/8inch),andalocknut(3/8inch).

9.Lubricatethettingattherodendofthecylinderwith

grease.

10.Repeatsteps1through9fortheotherstabilizer.

InstallingtheBoom

Partsneededforthisprocedure:

1Boom

2Boompivotpin

Hex-headbolt(1/2x2inch)

Washer(1/2inch)

Spacer

Locknut(1/2inch)

Procedure

1.Lubricatetheinsidediameterofthemountingholesfor

theboomwithgeneral-purpose,lithium-basedgrease

(Figure22).

Figure22

1.Boom

5.Greasetting(2)

2.Mountingholesforthe

boom

6.Hex-headbolt—1/2x2

inch(2)

3.Locknut—1/2inch(2)7.Spacer(2)

4.Boompivotpin—2x3

inches(2)

8.Washer—1/2inch(2)

2.Lifttheboomintopositiononthemachineusing

liftingequipment.

Note:Allowthefreeendoftheboomtorestonthe

oorwhileyouinstalltheboom.

3.Lubricatetheinsidediameterofalltheholesinthe

lowerboomend.

4.Insertthelowerboomendbetweentheswingtower

sideplatesandaligntheholes.

5.Insertaboompivotpin(2x3inches)throughthehole

inbothsideplatesoftheswingtower(Figure22).

6.Secureeachoftheretaininglugswithahex-headbolt

(1/2x2inch),awasher,aspacer,andalocknut.

7.Removetheliftingequipment.

InstallingtheBoomHydraulic

Cylinder

Partsneededforthisprocedure:

1Boomhydrauliccylinder

1Boomcylindermountingpin

Hex-headbolt(3/8x1-1/2inch)

Locknut(3/8inch)

Procedure

Note:Ensurethatthefreeendoftheboomissupported

ontheoor.

1.Lubricatetheinsidediameteroftheupperholes

ofthecylindermountinglugwithgeneral-purpose,

lithium-basedgrease(Figure23).

Figure23

Locknutisnotshown

1.Boom3.Boomcylindermounting

pin(1-3/4x3-3/4inches)

2.Cylindermountinglug(2)4.Hex-headbolt(3/8x1-1/2

inch)

2.Lubricatetheinsidediameteroftheholeinthe

piston-endttingofthehydrauliccylinderwithgrease

(Figure23).

3.Removetheplugsfromthecylinderandcoverthe

holeswithacleanrag.

4.Extendthepiston-endttingofthecylinderandalign

theholeinthettingwiththeholesintheboom

mountinghinges(Figure23).

Note:Residualhydraulicuidmayejectfromthe

cylinderports.

5.Securethepiston-endofthecylinderwithaboom

cylindermountingpin(1-3/4x3-3/4inches),a

hex-headbolt(3/8x1-1/2inch),andalocknut(3/8

inch)asshowninFigure23.

6.Lubricatetherod-endttingofthecylinderandboth

mountinglugsonthesideplatesoftheboom(Figure

23).

ConnectingtheHydraulic

PressureandReturnHoses

Partsneededforthisprocedure:

Hydraulichose(0.75x28.3inches)

Hydraulichose(0.75x29.4inches)

Procedure

1.Placeadrainpanunderthebulkheadttingsforthe

hydraulicpressureandreturncircuitsofthemachine

(Figure24).

Note:Thettingsarelocatedontheleftsideofthe

machinenearthefronttire(Figure24).

Figure24

1.Bulkheadttings(capped)

2.Removethecaponeachttingandlooselyinstalla

hydraulictting(3/4inch,90°elbow)ontoeachofthe

2bulkheadttingsasshowninFigure24.

Note:Retainthecapttingssothatyoucaninstall

themwhenyouremovethebackhoe.

Figure25

Thewheelandtirehavebeenremovedforthepurpose

ofclarity.

1.Hydraulicpressure

connection

5.Hydraulic-returnhose

(29.4inches)

2.Hydraulicreturn

connection

6.90°hydraulictting(3/4

inch)onthepressureport

3.Hosesupport

7.90°hydraulictting(3/4

inch)onthereturnport

4.Hydraulic-pressurehose

(28.3inches)

3.Routethe2hydraulichosesthroughthehosesupport

asshowninFigure25.

4.Connectandtightenthe2hosestothehydraulic

pressureandsupplytubeslocatedrearwardofthe

left-mountingplateforthebackhoe(Figure25).

5.Connectandtightenthefreeendsofthehosesto

thehydraulicttings(3/4inch,90°elbow)thatyou

installedinstep2asshowninFigure25.

6.Alignandtightenthe2hydraulicttings(3/4inch,90°

elbow)onthebulkheadttings.

7.Torqueall3/4-inchttingsto90to111N-m(66to

82ft-lb).

8.Securethebackhoewiringharnesstothehydraulic

hosesandtubeswithcableties.

BleedingtheStabilizer

Cylinders

NoPartsRequired

Procedure

1.Settheparkingbrakeandensurethatallthecontrols

areintheNeutralposition.

2.RotatethebatterydisconnecttotheOnposition;refer

tothetractionunitOperator’sManual.

3.Starttheengineonthemachine;refertothetraction

unitOperator’sManual.

4.Settheenginespeedto1/4throttle.

5.Movetotheoperatorseatofthebackhoe.

6.Moveeachstabilizercontrolforwardandrearward

severaltimesuntilthestabilizersmovesmoothly

throughouttheirfullrangeofmovement.

Figure26

1.Leftstabilizercontrol

2.Rightstabilizercontrol

7.Movebothstabilizerstothedownposition(Figure26).

8.Stoptheengineandremovetheignitionkey.

ConnectingtheHydraulic

HosestotheBoomHydraulic

Cylinder

Partsneededforthisprocedure:

Hydraulichose(0.75x31.5inches)

Hydraulichose(0.75x32.4inches)

Procedure

1.Connectthehydraulichosestotheextendandretract

tubesontheboomcylinderasshownin(Figure27).

Figure27

1.Boomcylinderextendtube

(connect31.5-inchlong

hosehere)

2.Boomcylinderretracttube

(connect32.4-inchlong

hosehere)

2.Securetheotherendofthehydraulichosesthatare

connectedtotheextendandretracttubesontheboom

cylindertotheircorrespondingtubesasshownin

Figure28.

Note:Torquethehydraulicttingsto59to72N-m

(43to53ft-lb).

Figure28

1.Boomcylinderretracthose

(31.5inches)

3.Boomreturntube

2.Boomcylinderextend

hose(32.4inches)

4.Boompressuretube

Figure29

1.Boomreturntube4.Boompressuretube

2.Dipperreturntube5.Dipperpressuretube

3.Bucketreturntube6.Bucketpressuretube

BleedingtheBoomElevation

Cylinder

NoPartsRequired

Procedure

WARNING

Co-workersandbystandersnearthemoving

attachmentpartsmaycomeintocontactwithan

attachmentpart,causingseriousinjuryordeath.

Beawareofwhereotherworkersareinthearea

whileyouarebleedingthehydraulicsystem,and

keepothersawayfromthearea.

1.Ensurethattheendsoftheunconnectedhydraulic

tubesarecapped(Figure30).

Figure30

1.Unconnectedhydraulictubeends

2.Starttheengineonthemachine;refertothetraction

unitOperator’sManual.

3.Settheenginespeedto1/4throttle.

4.Movetheboomelevationcontrolrearward(toraise

theboom)andforward(tolowertheboom)several

timesuntiltheboommovessmoothlythroughoutits

fullrangeofverticalmovement(Figure31).

Figure31

1.Boomcontrol(elevationmovement)

5.Movetheboomtoaverticalpositionthatallowsyouto

installthedipperatacomfortableheight.

6.Stoptheengineandremovetheignitionkey.

InstallingtheDipper

Partsneededforthisprocedure:

1Dipper

Dipperpivotpin(2x9-3/4inches)

1Tabbedwasher

Slotted-spannernut(1-3/4inch)

1Retainerpin

Greasetting

Procedure

1.Lubricatetheinsidediameterofthedippermounting

holesintheboomsideplateswithgeneral-purpose,

lithium-basedgrease(Figure32).

Figure32

1.Dipperassembly

6.Slotted-spannernut(1-3/4

inch)

2.Retainerpin

7.Greasetting

3.Dipperpivotpin(2x9-3/4

inches)

8.Boom

4.Dippermountingholesin

theboomsideplates

9.Holeindipperend

5.Tabbedwasher

2.Liftthedipperintopositiononthemachineusing

liftingequipment.

3.Lubricatetheinsidediameteroftheholesinthedipper

endwithgeneral-purpose,lithium-basedgrease.

4.Insertthedipperendbetweenthesideplatesofthe

boomandaligntheholes.

5.Inserttheretainerpinthroughthecross-drilledholein

thedipperpivotpin.

6.Alignthetabattheinsidediameterofthetabbed

washerwiththeslotintheretainerpin.

7.Threadtheslotted-spannernut(1-3/4inches)ontothe

retainerpinandtightenituntilaslotinthenutaligns

withatabofthetabbedwasher.

8.Bendthealignedtabofthetabbedwasherintothe

alignedslotintheslotted-spannernut.

9.Insertthedipperpivotpinthroughtheholeinboth

sideplatesoftheboom(Figure32).

10.Securethedipperpivotpinontheboomwitharetainer

pin,atabbedwasher,andaslotted-spannernut(1-3/4

inch);refertoFigure32.

11.Installagreasettingoneachendoftheretainerpin

andlubricatewithgeneral-purpose,lithium-based

grease).

12.Removetheliftingequipment.

InstallingtheDipperHydraulic

Cylinder

Partsneededforthisprocedure:

1Hydrauliccylinder

Dippercylinderpin(1-1/2x5.83inches)

Snapring

1Retainerpin

Procedure

1.Lubricatetheinsidediameteroftheholesatthe

pivotpointonthedipperwithgeneral-purpose,

lithium-basedgrease(Figure33).

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Toro Backhoe, RT1200 Trencher User manual

Toro Backhoe, RT1200 Trencher User manual

Toro Backhoe, RT1200 Trencher User manual

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