Toro 25512, 25512E Installation Instructions

AdvancedSteeringControl

RT1200TractionUnit

ModelNo.25512

ModelNo.25512E

ThisproductcontainsachemicalorchemicalsknowntotheStateofCaliforniato

causecancer,birthdefects,orreproductiveharm.

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

FormNo.3389-375RevA

InstallationInstructions

WARNING

CALIFORNIA

Proposition65Warning

ProcedureDescription

1

2

3
4
5

Nopartsrequired

Steeringsensorassembly
Screw
Nut2

Nopartsrequired

Switchassembly

Nopartsrequired

Qty.

–

2
2

–

1Installtheswitch.

–

Use

Preparethemachine.

Installthesteeringsensorassembly.

Connectthesteeringsensorassembly.

Calibrateandtestthemachine.

©2014—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Registeratwww.T oro.com.

OriginalInstructions(EN)

PrintedintheUSA

AllRightsReserved

*3389-375*A

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PreparingtheMachine

NoPartsRequired

Procedure

Formachineswithwheels.

1.Parkthemachineonalevelsurfaceandlowerall
attachmentstotheground.

2.Shutofftheengineandremovethekeyfromthekey
switch.

3.MovethemasterdisconnectswitchtotheOffposition;
refertotheOperator’ sManualforthemachine.

4.Jackupthefrontleftsideofthemachineandplacea
jackstandunderthefrontaxletosupportthemachine.

The2steeringsensorsareinstalledontotherear-rightwheel
andfront-leftwheel.

Formachineswithtracks.

1.Turnboththefrontandreartrackstotheleft.

Note:Thisallowsaccesstothekingpinassembly.

2.Parkthemachineonalevelsurfaceandlowerall
attachmentstotheground.

3.Shutofftheengineandremovethekeyfromthekey
switch.

4.MovethemasterdisconnectswitchtotheOffposition;
refertotheOperator’ sManualforthemachine.

5.Jackupthefrontleftsideofthemachineandplacea
jackstandunderthefrontaxletosupportthemachine.

Important:Useajackstandthatcanholda
capacityof26,000pounds.

6.Placeafootlong2x4underthereartrackidleronthe
frontaxle(Figure1).

Note:Wheninstallingthekitontherearaxle,place
the2x4underthefronttrackidler.

Important:Useajackstandthatcanholda
capacityof26,000pounds.

5.Supporttheweightofthedrivehub.

6.Removethewheelassembly;refertotheOperator’s
Manualforthemachine.

Note:Ifyourmachineisequippedwithabackhoe,unlock
androtatethewalkwayoutoftheway;refertotheOperator’s
Manualfortheattachment.

2

InstallingtheSteeringSensor
Assembly

Partsneededforthisprocedure:

2

Steeringsensorassembly

2

Screw

2Nut

Figure1

1.Reartrackidler

7.Lowerthemachineuntilthetracksmakecontactwith
thegroundandthereisnoloadonthekingpin.

Note:Themachinewillbesupportedbytheground
andthe2x4.

Procedure

1.Removethe3boltssecuringthetriangularkingpin
fromthetopoftheaxle(Figure2).

Note:Donotdiscardthehardware.

Figure2

1.Hexbolt2.Kingpin

2

2.Supportthehubtokeepitfrommoving,thenremove

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thekingpin.

Note:Thekingpinwillnotbereused.

3.LubricatetheO-ringandinsertitintothegrooveon
thenewkingpin.

Note:Useasmallscrewdriverorsimilartooltoensure
thattheO-ringisinsertedintothegroovedslot(Figure

3).

Figure5

1.Kingpin2.Axlehousing

7.Putathread-lockingcompoundonthe3boltsremoved
earlierandusethemtosecurethenewkingpin(Figure

6).

Figure3

1.Kingpin

2.O-ring

4.Installthegreasettingintothenewkingpin(Figure

4).

Figure4

1.Greasetting

2.Kingpin

Figure6

1.Hexbolt2.Kingpin

8.Inserttheactuatorpinintothekingpin(Figure7).

Note:Donotpushtheactuatorpininalltheway .

5.Putgreaseinthecenterholeandonthesurfaceofthe
kingpin.

6.Insertthenewkingpinintotheaxlehousing.

Note:Ifthehubwassecured,thekingpinshould

1.Actuatorpin

Figure7

installeasily;otherwiseyoumayhavetomovethehub
slightlytoaligntheholes(Figure5).

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9.Turntheatsideoftheactuatorpintowardthe

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machinetoa45-degreeangle(Figure8).

Note:Donotpushtheactuatorpininalltheway .

Figure10

Figure8

1.Flatsideofactuatorpin

10.Placethesensorontotheactuatorpin(Figure9).

Note:Itshouldrotateanequalamountofdegreesin
bothdirections.

Figure9

1.Sensor

1.Snapring

2.Washer

3.Actuatorpin

13.Installthesensorandalignitstraightwiththeoutside
ofthewheelhubwiththemountingholes(Figure11).

Figure11

1.Sensor

14.Securethesensorwith2washersand2hexbolts
(Figure12).

11.Whentheactuatorisorientedtoa45degreeangleto
theaxleasshowninFigure9,removethesensorand
gentlytapontheactuatorpinuntilitisfullyseated.

12.Inserttheatwasherontotheactuatorpin,theninsert
thesnapringontotheactuatorpin(Figure10).

Note:Useasmallscrewdriverorsimilartooltoensure
thesnapringisfullyseatedinthegroove.

Note:Checktomakesurethattheactuatorpinisfully
seatedbypullingonitwithapairofpliers.Itshould
notcomeout.

Figure12

1.Hexbolt

2.Sensor

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15.Plugtheconnectorofthesteeringsensorintothe

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wiringharnessofthecoverassembly(Figure13).

Figure13

1.Sensor3.Cover

2.Wiringharness

16.Aligntheholesandsecurethecoverassemblyusing2
bolts(Figure4).

Figure15

1.Bolt,washerandnut2.Bracket

18.Repeattheproceduresfrom1PreparingtheMachine

(page2)and2InstallingtheSteeringSensorAssembly
(page2)fortherearrightsideofthemachine.

3

Figure14

1.Cover

17.Securethesteeringsensorcabletothechassisframe
withthebracket(Figure15).

Note:Placetheboltontheoutsideoftheframewith
thebracket,withthewasherandnutinsidethechassis
frame.

2.Bolt

ConnectingtheSteering
SensorAssembly

NoPartsRequired

Procedure

1.Plugthesteeringsensorconnectorintotheright-rear
wheelsteeringsensor(Figure16).

Note:Thesteeringsensorconnectorispartofthe
existingwiringharness.Theconnectorislocatedunder
themachine,alongthechassis,abovetheaxle,andnear
theright-rearwheel.

Note:Thesteeringsensorconnectorontheright-rear
sideofthemachineislabeledP45.

Figure16

1.SteeringsensorconnectorP45

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2.Thefrontleftsteeringsensorconnectoristiedoffto

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thewiringharness(Figure17).

Note:Routetheharnessdownbehindthechassis
framebytheaxleandconnectthefrontleftwheel
steeringsensor.

Note:Thesteeringsensorontheright-rearsideof
themachineislabeledP07.

Figure17

1.SteeringsensorconnectorP07

Formachineswithtracks.

4

InstallingtheSwitch

Partsneededforthisprocedure:

1

Switchassembly

Procedure

1.Removetheplugonthecontrolpanelontheleft-side
oftheseat(Figure18).

1.Jackuptherearrightsideofthemachineandremove
the2x4underthetracks.

Note:Repeatforthefrontleftsideofthemachineif
that2x4hasnotalreadybeenremoved.

2.Lowerthemachinesothatthemachineisonthe
ground.

Formachineswithwheels.

1.Installthetireassemblyusingthelugnutsandwashers
previouslyremoved.

2.Torquethelugnuts;refertotheOperator’sManualfor
themachine.

3.Repeattheentireprocessforthefront-leftwheel.

4.Fillbothkingpinswithgreaseuntilgreasejustbegins
toowoutaroundthegreasetting.

5.Lowerthemachinetotheground.

Forallmachines.

1.MovethemasterdisconnectswitchtotheOnposition.

2.TurntheignitionkeytotheOnposition.

Figure18

1.Rubberbutton3.Plug

2.Hexnut

2.Insertthebottompartoftheswitchassembly
underneaththecontrolpanelupthroughthehole
wheretheplugwaslocated(Figure18).

3.Securethebottomswitchassemblyusingthehexnut
andtherubberbutton(Figure18).

4.Locatethe2availablewiresconnectedtotheexisting
wiringharnessunderthecontrolpanelcoveronthe
left-sideoftheseat.

5.Loosentheboltsatthebottomoftheswitchassembly ,
placetheterminalssothatthebodyoftheboltisin
betweenthe2prongs,andtightenthebolts(Figure19).

4.Switch

Note:Theinstrumentpaneldisplayshouldnothave
aniconbybutton6.

3.TurntheignitionkeytotheOffposition.

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Figure19

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P

0

RPM

0

%

LOAD

66 °F

70 °F

6

12

16

24

30

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2

3

4

5

6

7

8

ESC

OK

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L

C

R

Note:Thesteeringmodeshouldautomaticallychange
tofrontsteering.

1.Boltsonthebottomofthe
switchassembly(located
inthecoverassembly)

2.Terminalsonthewiring
harness(locatedinthe
coverassembly)

5

CalibratingandTestingthe
Machine

NoPartsRequired

Procedure

1.Starttheengineandcenterthefrontandrearwheels.

2.Pressthedownarrowtogettothemenuandpress
button2,TrencherSetup.

Note:YouwillneedaPINtoaccessthisscreen;
toobtainthePIN,contactanAuthorizedT oro
Distributor.

3.EnterPINnumberandpressOK.

4.SelectSteeringCalibration.

5.Followtheon-screendirectionstocalibratethesteering.

6.ExittothemainscreenusingtheEscbutton.

7.Setthesteeringmodetocrabsteering.

1.Rearwheelposition
indicator

Figure20

2.Commandcenterscreen

Note:Therearwheelsshouldmatchtheangleofthe
frontwheels.

8.Rotatethesteeringwheel.

Note:Therearwheelsshouldcontinuetofollowthe
angleofthefrontwheels.

9.Changethesteeringmodetocoordinatedsteering.

Note:Therearwheelsshouldturnintheopposite
directionofthefrontwheels.

10.Pushandholdtherearsteercenteringbuttonuntilthe
indicatorontheshowsthattherearwheelsarestraight.

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