Toro 09920 Operator's Manual

FormNo.3362-258RevA

ProCoreSR48,SR54,SR54–S,
SR70,SR70–S,SR72and
SR75–HDAerators

ModelNo.09920—SerialNo.290000001andUp

ModelNo.09921—SerialNo.290000001andUp

ModelNo.09922—SerialNo.290000001andUp

ModelNo.09924—SerialNo.290000001andUp

ModelNo.09925—SerialNo.290000001andUp

ModelNo.09926—SerialNo.290000001andUp

ModelNo.09927—SerialNo.290000001andUp

ToregisteryourproductordownloadanOperator'sManualorPartsCatalogatnocharge,gotowww.T oro.com.OriginalInstructions(EN)

Introduction

Readthisinformationcarefullytolearnhowtooperate
andmaintainyourproductproperlyandtoavoidinjury
andproductdamage.Youareresponsibleforoperating
theproductproperlyandsafely.

Thismanualidentiespotentialhazardsandhas
safetymessagesidentiedbythesafetyalertsymbol
(Figure2),whichsignalsahazardthatmaycauseserious
injuryordeathifyoudonotfollowtherecommended
precautions.

YoumaycontactTorodirectlyatwww .T oro.comfor
productandaccessoryinformation,helpndinga
dealer,ortoregisteryourproduct.

Wheneveryouneedservice,genuineToroparts,or
additionalinformation,contactanAuthorizedService
DealerorToroCustomerServiceandhavethemodel
andserialnumbersofyourproductready .Figure1
identiesthelocationofthemodelandserialnumbers
ontheproduct.Writethenumbersinthespace
provided.

Figure2

1.Safetyalertsymbol

Thismanualuses2otherwordstohighlightinformation.
Importantcallsattentiontospecialmechanical
informationandNoteemphasizesgeneralinformation
worthyofspecialattention.

1.Modelandserialnumberlocation

ModelNo.

SerialNo.

Figure1

©2009—TheT oro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Contactusatwww.T oro.com.

2

PrintedintheUSA.

AllRightsReserved

Contents

Introduction.................................................................2

Safety...........................................................................4

SafeOperatingPractices.......................................4

SafetyandInstructionalDecals.............................6

Setup............................................................................8

1ConnectingtheLowerLinkArms......................9

2ConnectingtheHydraulicTopLink

(ModelsSR48,SR54,SR70,SR72and

SR75–HD........................................................9

3ConnectingtheTractorUpperLink(Models

SR54–SandSR70–S)......................................11

4VerifyingtheTopLinkSetUp..........................11

5CheckingthePTOAngle.................................12

6FittingthePTOshaft.......................................12

7InstallingthePTOShield.................................14

8ConnectingthePTOShaft...............................15

9AdjustingtheSwayLinks.................................16

10LevelingtheAeratorSide-to-Side...................17

11InstallingtheTines.........................................17

12RemovingtheStorageStands(Models

SR54,SR54S,SR70andSR70–S).....................18

13RemovingtheStorageStands(Models

SR72).............................................................18

ProductOverview......................................................19

Specications.....................................................19

Attachments/Accessories...................................19

Operation...................................................................20

TractorControls.................................................20

PrinciplesofOperation......................................20

TractorPTOSpeed............................................20

TrainingPeriod...................................................20

BeforeAerating..................................................20

AeratingProcedures...........................................21

OperatingTips...................................................21

SubsoilCultivation.............................................22

HardGround.....................................................22

Longer/LargerTines..........................................22

MultiRowAdapterHeads..................................22

RootZoneLifting..............................................22

AdjustingtheTineAngle....................................22

TransportOperation..........................................23

InspectionandCleanupafterUse........................23

Maintenance...............................................................24

RecommendedMaintenanceSchedule(s)................24

LiftingtheMachine............................................24

GreasingtheBearings.........................................25

CheckingtheGearboxOil..................................25

ChangingtheGearboxOil..................................26

Inspecting/AdjustingtheDriveChain................26

AdjustingthePTOClutch..................................27

CheckingtheCoringHeadFastener

Torque...........................................................27

CheckingtheSprings..........................................28

AdjustingtheHoleSpacing.................................28

RemovingtheAeratorfromtheTractor...............28

TroubleShooting...............................................29

Storage.......................................................................30

3

Safety

Improperuseormaintenancebytheoperatoror
ownercanresultininjury.Toreducethepotential
forinjury,complywiththesesafetyinstructions
andalwayspayattentiontothesafetyalert
symbol,whichmeansCAUTION,WARNING,or
DANGER-"personalsafetyinstruction."Failureto
complywiththeinstructionmayresultinpersonal
injuryordeath.

SafeOperatingPractices

BeforeOperating

•OwnersofthisAeratormustgiveoperatorsand
employeesfulloperationandsafetyinstructions
beforeallowingthemtooperatethismachineandat
leastannuallythereafter.Anoperatorwhohasnot
readandfullyunderstoodalloperatingandsafety
instructionsisnotqualiedtooperatethismachine.
Becomefamiliarwithallcontrolsandknowhowto
stopquickly.

•Donotallowchildrentooperatethemachine.Do
notallowadultstooperatethemachinewithout
properinstruction.

•Removealldebrisorotherobjectsthatmight
interferewithoperation.Keepallbystandersaway
fromtheworkarea.

•Locateandmarkallundergroundobstructionssuch
asirrigationcomponents,electricalortelephone
lines.

•Makesuretractorisinneutralandparkingbrake
appliedbeforestarting.RefertoTractorOperator’s
Manualforsafestartingprocedures.

•Ensurethatyourtractorissuitableforusewithan
implementofthisweightbycheckingwithyour
tractorsupplierormanufacturer.

•Mountingtheaeratortotherearofthetractor
willdecreasetheweightonthetractorfrontaxle.
Toassureadequatesteeringcontrolandstability
itmaybenecessarytoaddballasttothefrontof
thetractor.RefertoTractorOperator’sManualfor
ballastrequirements.

•Keepallshieldsandsafetydevicesinplace.Ifa
shield,safetydeviceordecalisdamaged,repairor
replaceitbeforeoperationiscommenced.Also
tightenanyloosenuts,boltsandscrewstoensure
machineisinsafeoperatingcondition.

•Donotoperatemachinewhilewearingsandals,
tennisshoes,sneakersorshorts.Also,donot
wearloosettingclothingwhichcouldgetcaught

inmovingparts.Alwayswearlongpantsand
substantialshoes.Wearingsafetyglasses,safety
shoes,hearingprotectionandahelmetisadvisable
andmayberequiredbysomelocalordinancesand
insuranceregulations.

WhileOperating

•Neveroperatethetractorinreversewhentheaerator
islowered.

•Keepallbystandersandpetsawayfromthework
area.

•Usingthemachinedemandsattention,andto
preventlossofcontrol:

–Useonlyindaylightorwhenthereisadequate

articiallight.
–Watchforholesorotherhiddenhazards.
–Donotoperatethemachineclosetoasandtrap,

ditch,creekorotherhazard.
–Reducespeedonsidehillsandbeforemaking

sharpturnstopreventtippingorlossofcontrol.
–Lookbehindtheaeratorbeforebackingup.

•Ifthetinesstrikeasolidobjectorthemachine
vibratesabnormally,disengagethePTO ,setthe
parkingbrakeandshuttheengineoff.Removekey
fromignitionswitch.Checkaeratorandtractionunit
fordamage.Repairanydamagebeforerestartingthe
engineandoperatingthetines.Besuretinesarein
goodconditionandallboltsaretight.

•Beforeleavingmachineunattended,disengagepower
toaerator,loweraeratorontostoragestandsandset
parkingbrake.Stopengine.

•Neverdismountwhiletractorisinmotion.Never
getonorofftractorwhileengineisrunningand
PTOdriveshaftisengaged.NeverstepoverPTO
shafttoreachothersideofaerator-walkaround
themachine.

•Whenliftingtheaerator,disengagethePTOwhen
therollerisapproximately5”fromtheground.

•Donotoperatethismachinewithouttherolleron
theground.Neveroperatewiththemachinein

theraisedposition.

•Parktheaeratoronahard,levelsurface,installthe
aeratorstoragestandsbeforedisconnectingfrom
tractor.

•Ifitisnecessarytoprobebelowthesoilsurface,use
anonconductivematerialtopreventelectricalshock
incaseelectricalwiresarepresent.

•Alwayslowertheaeratortothegroundbefore
leavingthetractorunattended.Neverleavethe
aeratorintheraisedpositionwhenitisunattended.

4

Transporting

•Theaeratorisheavy.Whenattachedtoatractor
andintheraisedposition,itsweightwillaffect
stability,brakingandsteering.Exercisecautionwhen
transportingbetweenworkingareas.

•Alwaysmaintainpropertractortirepressure.

•Besureyouareincompliancewithallregulations
beforetransportingequipmentonthepublicroads
andhighways.Makesureallrequiredreectors
andlightsareinplaceandarecleanandvisibleby
overtakingandoncomingtrafc.

•Neverallowpassengerstorideonthemachine
duringtransport.

•Reducespeedonroughroadsandsurfaces

•Independentwheelbrakesshouldalwaysbelocked
togetherwhentransporting.

PTOShaft

•ForallPTOshaftsteelparts(tubes,bearings,joints
etc.)disassemblyorrepairs,itishighlyadvisable
tocontactyourlocalTorodistributor.Removalof
componentsforrepairsandreassemblymaydamage
somepartsifnotperformedwithspecialtoolsby
trainedtechnicians.

•ThePTOshaftmustnotbeusedwithouttheguards
supplied,withpartialprotectionorwithdamaged
guards.OnCEmachines,operationisprohibited
withoutthespecialanti-rotationchainscorrectly
installed,soastopermitthemaximumangleofthe
PTOshaftwithoutbreakingthechains.

•Besurethemachineisinsafeoperatingconditionby
keepingnuts,boltsandscrewstight.Checkthetine
mountingboltsdailytobesuretheyaretightened
tospecication.

•Donotcheckoradjustthechaintensionwhenthe
tractorengineisrunning.

•Besureallguardsarereplacedandthehoodis
securedshutaftermaintainingoradjustingthe
machine.

•Performonlythosemaintenanceinstructions
describedinthismanual.Ifmajorrepairsare
everneededorassistanceisdesired,contactan
AuthorizedToroDistributor.Toensureoptimum
performanceandsafety,alwayspurchasegenuine
Tororeplacementpartsandaccessoriestokeepthe
ToroallToro.Neveruse"will-t"replacementparts
andaccessoriesmadebyothermanufacturers.Look
fortheTorologotoensuregenuineness.Using
unapprovedreplacementpartsandaccessoriescould
voidthewarrantyofTheT oroCompany.

StorageSafety

•Storetheaeratoronthestoragestandspositionedon
armlevelsurface.

•Storetheaeratorawayfromareasofhumanactivity.

•Donotallowchildrentoplayonoraroundthe
storedmachine.

•Makesuretheaeratorispositionedonrmandsolid
groundsoitdoesnotsinkortipover.

•Frictionclutchesmaybecomehotduringuse.Do
nottouch.Toavoidtheriskofre,keepthearea
aroundtheclutchfreeofammablematerialand
avoidprolongedslippingoftheclutch.

Maintenance

•Beforemakingadjustmentsorperforming
maintenanceontheaerator,switchofftheengine,
stopthePTOandapplytheparkingbrakebefore
dismountingfromthetractor.Besuretheaeratoris
onthegroundorloweredontothesafetystands.

•Supportthemachinewiththeblocks,jacksoron
storagestandswhenworkingbeneathit.Never

relyonthetractor’shydraulicstosupportthe
machine.

•Placeallcontrolsinneutral,stoptheengine,apply
parkingbrakeandwaitforallmovingpartsto
stopbeforeservicing,maintaining,adjustingor
unblockingtheaerator.

5

SafetyandInstructionalDecals

Safetydecalsandinstructionsareeasilyvisibletotheoperatorandarelocatednearanyareaof
potentialdanger.Replaceanydecalthatisdamagedorlost.

117–7052

1.ReadtheOperator’sManual,donotoilthechaindrive.

100–3612

1.Entanglementhazard—stayawayfrommovingparts,keep
allguardsandshieldsinplace.

110-4668

1.Entanglementhazard,shaft—stayawayfrommovingparts.

2.PTOspeedandinputdirection.

3.Usecliptosecurelashcablewhennotinuse.Uselash
cabletosupportthepowertake-offwhenthemachineis
disconnectedfromtractor.

117–7051

1.Crushinghazardofhandorfoot—keepbystandersasafe
distancefromthemachine.

117–7050

1.Warning—readtheOperator’sManual.

2.Warning—removetheignitionkeyandreadtheinstructionsbeforeservicingorperformingmaintenance.

3.Warning—donotoperatethismachineunlessyouaretrained.

4.Entanglementhazard,belt—stayawayfrommovingparts,keepallguardsinplace.

5.Crushinghazardofhandorfoot—keepbystandersasafedistancefromthemachine.

6.Crushinghazardofhandandbody—supportmachineonstandwhennotinuse.

7.Fallinghazard—donotcarrypassengers.

6

92–1581

92–1582

7

Setup

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescription

1

2

3

4
5
6
7

8

Hitchpin2
Lynchpin2
Hydraulictoplink1
Hydraulichose,3–1/2feet
Hydraulichose,2–1/2feet
Extensionbracket2
Rotationalbracket1
Hosequickcouplings(notincluded)
Springloadedtoplink
Linkpin3
Lynchpin3

Nopartsrequired

Nopartsrequired

PTOshaft

PTOShield

Pin(suppliedwithPTOshaft)
Nut(suppliedwithPTOshaft)

Qty.

Use

ConnectLowerLinkArms

1
1

2
1

–

–

1

1

1
1

ConnectHydraulicT opLink

ConnectUpperLink

Verifythetoplinksetup

CheckingthePTOangle

FittingthePTOshaft

InstallthePTOShield

ConnectPTOShaft

9
10
11
12
13

Nopartsrequired

Level(notsupplied)

Tines

Nopartsrequired

Nopartsrequired

–

1

A/R

–

–

AdjustingSwayLinks

LevelAeratorSide-to-Side

InstalltheTines

RemoveStorageStands

RemoveStorageStands

8

MediaandAdditionalParts

Description

Operator’sManual

PartsCatalog

SpringWires-SR54

SpringWires-SR70

SpringWires-SR72

SpringWires-SR72

Allenwrench1

PTOOperatorsManual

1

ConnectingtheLowerLink
Arms

Partsneededforthisprocedure:

2Hitchpin

2Lynchpin

Qty.

1

1

6Replacementspringwires

8Replacementspringwires

4Replacementspringwires

2Replacementspringwires

1

Readbeforeoperatingtheaerator

Usetoreferencepartnumbers

TineheadboltwrenchforSR72

Readbeforeoperatingtheaerator

1.Lowerlink2.Lynchpin

Use

Figure3

Procedure

1.Removetheboltssecuringtheaeratorstoragestands
totheshippingpalletandremovetheaeratorfrom
thepallet.

2.Theaeratormustbepositionedonaat,level
surfaceforinstallation.

3.Backthetractorsquarelyuptotheaeratoruntil
thelowerlinkarmsarealignedwiththemounting
brackets.

4.MakesurethePTOisdisengaged.

5.Engagetheparkingbrake,STOPtheengineand
removethekeyfromtheignition.Waitforthe
engineandallmovingpartstoSTOPbeforeleaving
theOperator’sseatonthetractor.

Note:Formaximumgroundclearance,thehitch
pinsshouldbesecuredintheaeratorlowermounting
bracketholes,whensoequipped.Todetermine
whentousetheuppermountingholes,referto
ConnectingthePTOShaft.

6.Securethelowerlinkarmstotheaeratormounting
bracketswitheitherlynchpins(Figure3)orhitch
pinsandlynchpins(Figure4).

Figure4

1.Hitchpin3.Lowerlink

2.Aeratormountingbracket

9

2

Connectingthe
HydraulicTopLink
(ModelsSR48,SR54,SR70,
SR72andSR75–HD

Partsneededforthisprocedure:

1Hydraulictoplink

1

Hydraulichose,3–1/2feet

1

Hydraulichose,2–1/2feet

2Extensionbracket

1Rotationalbracket

2

Hosequickcouplings(notincluded)

Procedure

Figure5

1.Aeratorhitchpin7.Tractorlinkpin

2.Hydraulictoplink

3.Rotationalblock

4.Connectinglink10.3–1/2foothydraulichose

5.3inchextensionblock

6.5inchextensionblock12.Tractorhydraulicports

8.Clevis&lynchpin

9.2–1/2foothydraulichose

11.Hosequickcouplings(not
included)

Thetractormustbeequippedwithadoubleactingspool
valvewithanoperatorcontrolleverandtwo1/2”(12.7
mm)quick-releasecouplingsattherearofthetractor.It
isalsonecessaryforyoutoprovidetwoquickcouplings
tottothehydraulictoplinkhoses(1/2–14NPTF
hoseendthreadsize).

1.Securetheconnectinglinkendofthehydraulictop
linktothetractorwiththepinssuppliedwiththe
tractor(Figure5).Positionthehydraulictoplinkso
therodendistowardtheaerator.Thecylinderports
shouldbepositionedtowardthetractor’sauxiliary
powerhydraulics.

Note:Ifthehydrauliccylindermustbepositioned
withtheportsfacingupward,usetherotational
blockinsteadofthestandardmountingblockto
repositionthecylinder(Figure5).

Installtherotationalblockasfollows:

A.Removethecotterpinandpinsecuring

thestandardconnectinglinktothecylinder
(Figure5).Removetheconnectinglinkfromthe
cylinder.

B.Installtherotationalblocktothecylinderwith

thepinspreviouslyremoved(Figure5).

2.Connectthe3–1/2footlonghydraulichosetothe
hydraulictoplinkportwhichisclosesttotheaerator
Figure5.ApplyTeontapeorpipethreadsealantto
thehosethreadstopreventanyleaks.

3.Connectthe2–1/2footlonghydraulichosetothe
hydraulictoplinkportwhichisclosesttothetractor
(Figure5).ApplyTeontapeorpipethreadsealant
tothehosethreadstopreventanyleaks.

4.Installquickcouplings(notincluded)tothehydraulic
hoses(1/2–14NPTFhoseendthreadsize).

5.Connectthetwohydraulichosequickcouplingsto
theportsprovidedonthetractor.

6.Startthetractorengineandoperatethetractorspool
valvetochecktheextendandretractmotionofthe
hydraulictoplink.

Note:Reversethehoseconnectionsiftheydono
agreewiththetractorcontroloperation.

7.Securetherodendofhydraulictoplinktothemost
forwardholepossibleintheaeratorbracketwithlink
pinandlynchpin(Figure6).

Important:Whensecuringtherodendof
thehydrauliclink,makesuretousethemost
forwardmountingholesinthemountingbracket
sothereisenoughclearanceforthebarrelofthe
cylinderwhenretracted.

10