Toro Groundsmaster 4300-D Traction Unit User manual

FormNo.16226SLRevD

Groundsmaster

®

4300-D

(ModelNo.30864-SerialNo.314000101&

Up)

8111LyndaleAvenueSouth

Bloomington,MN55420

OriginalInstructions(EN)

Contactusatwww.Toro.com.

AllRightsReserved

RevisionHistory

RevisionDateDescription

A2016Initialissue.

B

03/2018

UpdatedEngine,ElectricalchaptersandFoldoutDrawings.AddedRevisionHistory

andpublishedinnewformat.

C03/2019UpdatedChassischapter.

D

07/2020

UpdatedElectricalchapterandFoldoutDrawings.

RevisionHistoryPage2

Groundsmaster

®

4300-D

16226SLRevD

ReaderComments

TheToroCompanyT echnicalAssistanceCentermaintainsacontinuous

efforttoimprovethequalityandusefulnessofitspublications.Todothis

effectively,weencourageuserfeedback.Pleasecommentonthecompleteness,

accuracy,organization,usability,andreadabilityofthismanualbyane-mail

to[email protected]

orMailto:

TechnicalPublicationManager,Commercial

TheToroCompany

8111LyndaleAvenueSouth

Bloomington,MN55420-1196

Phone:+1952-887-8495

Groundsmaster

®

4300-D

Page3

ReaderComments

16226SLRevD

NOTES:

Page4

Groundsmaster

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Preface

Thepurposeofthispublicationistoprovidetheservicetechnicianwiththe

informationfortroubleshooting,testing,andrepairofthemajorsystemsand

componentsofGroundsmaster4300-D(ModelNo.30864)machinesthatare

poweredbyaYanmardieselengine.

RefertotheOperator’sManualsforoperating,maintenance,andadjustment

instructions.SpaceisprovidedinT orqueSpecications(page2–4)ofthis

booktoinserttheOperator’sManualsandPartsCatalogforyourmachine.

AdditionalcopiesoftheOperator’sManualsandPartsCatalogsareavailable

atwww.toro.com.

TheToroCompanyreservestherighttochangetheproductspecicationsor

thispublicationwithoutnotice.

DANGER

Thissafetysymbolmeansdanger.Whenyouseethissymbol,

carefullyreadtheinstructionsthatfollow.Failuretoobeythe

instructionscouldkillorcauseseriouspermanentinjuryordisability.

WARNING

Thissafetysymbolmeanswarning.Whenyouseethissymbol,

carefullyreadtheinstructionsthatfollow.Failuretoobeythe

instructionscanresultinseriousinjury.

CAUTION

Thissafetysymbolmeanscaution.Whenyouseethissymbol,

carefullyreadtheinstructionsthatfollow.Failuretoobeythe

instructionscanresultinminortomoderateinjury.

IMPORTANT

TheImportantnoticewillgivetheimportantinstructionswhichyou

mustfollowtopreventdamagetothesystemsorcomponentson

themachine.

Note:ANotewillgivethegeneralinformationaboutthecorrectoperation,

maintenance,service,testing,orrepairofthemachine.

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Preface

16226SLRevD

g186523

Figure1

ServiceProcedureIcons

ThefollowingiconsappearthroughoutthisServiceManualtobringattentionto

specicimportantdetailsofaserviceprocedure.

CriticalProcess

Thisiconisusedtohighlight:

•installingsafetyequipment(shields,guards,seatbelts,brakesandR.O.P .S.

components)thatmayhavebeenremoved

•dimensionsorsettingsthatmustbemaintainedforpropermachineoperation

•aspecicfastenertighteningsequence

•componentorientationthatmaynotbeobvious

CriticalTorque

Thisiconisusedtohighlightanassemblytorquerequirementthatisdifferent

thanwhatisrecommendedintheStandardTorqueT ables;refertoT orque

Specications(page2–4).

FluidSpecications

Thisiconisusedtohighlightuidspecicationsandcapacitiesthatareless

common,andmaynotappearonthemachineservicedecalorinthemachine

Operator’sManual.

Note:RefertotheservicedecalonthemachineandthemachineOperator’s

Manualforcommonlyuseduidspecicationsandcapacities.

Preface

Page6

Groundsmaster

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TableofContents
Preface................................................................................................................5
Chapter1:Safety............................................................................................1–1
SafetyInstructions.......................................................................................1–2
JackingInstructions.....................................................................................1–6
SafetyandInstructionalDecals....................................................................1–7
Chapter2:SpecicationsandMaintenance....................................................2–1
Specications...............................................................................................2–2
TorqueSpecications...................................................................................2–4
ShopSupplies..............................................................................................2–9
SpecialT ools..............................................................................................2–11
Chapter3:DieselEngine.................................................................................3–1
Specications...............................................................................................3–2
GeneralInformation.....................................................................................3–3
ServiceandRepairs...................................................................................3–10
Chapter4:HydraulicSystem...........................................................................4–1
Specications...............................................................................................4–3
GeneralInformation.....................................................................................4–4
HydraulicSchematics.................................................................................4–15
HydraulicFlowDiagrams............................................................................4–16
SpecialT ools...............................................................................................4–31
Troubleshooting..........................................................................................4–39
TestingtheHydraulicSystem......................................................................4–44
ServiceandRepairs...................................................................................4–87
Chapter5:ElectricalSystem...........................................................................5–1
GeneralInformation.....................................................................................5–3
SpecialTools.................................................................................................5–5
InfoCenterDisplay........................................................................................5–7
Troubleshooting..........................................................................................5–24
ElectricalSystemQuickChecks..................................................................5–39
Adjustments................................................................................................5–41
TestingtheElectricalComponents..............................................................5–45
ServiceandRepairs...................................................................................5–92
Chapter6:Chassis..........................................................................................6–1
Specications...............................................................................................6–2
GeneralInformation.....................................................................................6–3
SpecialTools.................................................................................................6–4
ServiceandRepairs.....................................................................................6–5
Chapter7:CuttingDeck..................................................................................7–1
Specications...............................................................................................7–2
GeneralInformation.....................................................................................7–3
Troubleshooting............................................................................................7–4
SpecialTools.................................................................................................7–5
Adjustments..................................................................................................7–6
ServiceandRepairs.....................................................................................7–7
AppendixA......................................................................................................A–1
ElectricalDrawingDesignations....................................................................A–2
HydraulicSchematic.....................................................................................A–3
ElectricSchematic(Serialnumbersbelow403430000)................................A–4
ElectricSchematic(Serialnumbersabove403430001)................................A–5
......................................................................................................................A–6
WireHarnessDrawing-Seat(sheet1of2)...................................................A–7
WireHarnessDrawing-Seat(sheet2of2)...................................................A–8
WireHarnessDrawing-Engine(sheet1of2)...............................................A–9
WireHarnessDrawing-Engine(sheet2of2).............................................A–10
WireHarnessDrawing-Main(sheet1of2)(Serialnumbersbelow
403430000)................................................................................................A–11
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WireHarnessDrawing-Main(sheet2of2)(Serialnumbersbelow

403430000)................................................................................................A–12

WireHarnessDrawing-Main(sheet1of2)(Serialnumbers403430001

to405699999).............................................................................................A–13

WireHarnessDrawing-Main(sheet2of2)(Serialnumbers403430001

to405699999).............................................................................................A–14

WireHarnessDrawing-Main(sheet1of2)(Serialnumbersabove

405700001)................................................................................................A–15

WireHarnessDrawing-Main(sheet2of2)(Serialnumbersabove

405700001)................................................................................................A–16

WireHarnessDiagram−Two−PostROPSExtension(sheet1of

2)................................................................................................................A–17

WireHarnessDiagram−Two−PostROPSExtension(sheet2of

2)................................................................................................................A–18

AdditionalReferenceMaterials

YanmarTNV(Tier4)SeriesServiceManual

YanmarTNV(Tier4)SeriesTroubleshootingManual

DanfossLPVPumpRepairManual

DanfossLPVPumpServiceManual

EatonDeltaMotorsPartsandRepairManual

ParkerTorqmotorServiceProcedure(TC,TB,TE,TJ,TF ,TG,TH,andTLSeries)

DanfossOSPMSteeringUnitServiceManual

Preface

Page8

Groundsmaster

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16226SLRevD

Chapter1

Safety

TableofContents

SafetyInstructions................................................................................................................................1–2

Supervisor’sResponsibilities.............................................................................................................1–2

BeforeOperatingtheMachine...........................................................................................................1–2

WhileOperatingtheMachine.............................................................................................................1–3

MaintenanceandService...................................................................................................................1–4

JackingInstructions..............................................................................................................................1–6

RaisingtheFrontoftheMachine........................................................................................................1–6

RaisingtheRearoftheMachine........................................................................................................1–7

SafetyandInstructionalDecals............................................................................................................1–7

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Safety

16226SLRevD

SafetyInstructions

TheGroundsmaster4300-Dmachinemeetsorexceedssafetystandard

specicationswhenweightsareinstalledaccordingtoinformationinthe

Operator’sManual.Althoughhazardcontrolandaccidentpreventionarepartially

dependentuponthedesignandcongurationofthemachine,thesefactors

arealsodependentupontheawareness,concern,andpropertrainingofthe

personnelinvolvedintheoperation,transport,maintenance,andstorageof

themachine.Improperuseormaintenanceofthemachinecanresultininjury

ordeath.

WARNING

Toreducethepotentialofinjuryordeath,complywiththefollowing

safetyinstructionsaswellasinformationfoundintheOperator’s

Manuals.

Supervisor’sResponsibilities

1.EnsurethattheoperatorsarefullytrainedandfamiliarwiththeOperator’s

Manual,Operator’sTrainingDVD,andalloftheoperatingandsafetydecals

onthemachine.

2.Establishyourownspecialproceduresandworkrulesforunusualoperating

conditions(e.g.,slopestoosteepformachineoperation).Surveythemowing

sitecompletelytodeterminehillsonwhichyoucanoperatesafely.When

performingthissitesurvey,alwaysunderstandandtakeintoconsideration

theturfconditionandrolloverrisk.

BeforeOperatingtheMachine

•ReviewandunderstandthecontentsoftheOperator’sManualsand

Operator’sTrainingDVDbeforestartingandoperatingthemachine.Become

familiarwiththecontrolsandknowhowtostopthemachineandengine

quickly.AdditionalcopiesoftheOperator’sManualsareavailableat

www.toro.com.

•Keepalltheshields,safetydevices,anddecalsinplace.Ifashield,safety

device,ordecalisillegibleordamaged,repairorreplaceitbeforeoperating

themachine.

•Tightenanyloosenuts,bolts,orscrewstoensurethatthemachineisin

safeoperatingcondition.

•Ensurethattheinterlockswitchesareadjustedcorrectlysothattheengine

doesnotstartunlessthetractionpedalisintheNEUTRALposition,andthe

PTOswitchisintheOFF(disengaged)position.

•Dieselfuelishighlyammable;handleitcarefully.

–Storefuelincontainersspecicallydesignedforstoringfuel.

–Donotremovethefueltankcapofthemachinewhiletheengineishot

orrunning.

–Donotsmokewhilehandlingfuel.

–Fillthefueltankoutdoorsandonlytothebottomofthellerneck.Donot

overllthefueltank.

–Afterrefuelingthemachine,installthefueltankandfuelcontainercaps.

–Ifyouspillfuel,donotattempttostarttheenginebutmovethemachine

awayfromthespill.Avoidcreatinganysourceofignitionuntilfuelvapors

havedissipated.Wipeupanyspilledfuel.

Safety:SafetyInstructions

Page1–2

Groundsmaster

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16226SLRevD

WhileOperatingtheMachine

•Sitontheseatwhenstartingandoperatingthemachine.

•Anytimeyouparkthemachine(shortorlongterm),lowerthecuttingdecksto

theground.

IMPORTANT

Whenyoulowerthecuttingdecktotheground,thepressurefrom

thehydraulicliftcircuitreleasesandpreventsthecuttingdeck

fromaccidentallylowering.

•Ifyouparkthemachineonaslope,blockorchockthewheels.

Beforestartingthemachine

DANGER

Theexhaustfumesarehazardousandhavethepotentialofinjury

ordeath.

Donotruntheengineinaconnedareawithoutadequateventilation.

1.Settheparkingbrake.

2.EnsurethatthetractionpedalisintheNEUTRALpositionandthePTOswitch

isintheOFF(disengaged)position.

3.Afteryoustarttheengine,releasetheparkingbrakeandkeepfootoffthe

tractionpedal.Ensurethatthemachinedoesnotmove.

Note:Ifmachinemovementisevident,thetractionpedallinkageisadjusted

incorrectly;therefore,shutofftheengineandadjustthetractionpedallinkage

untilthemachinedoesnotmovewhenyoureleasethetractionpedal;referto

theOperator'sManual.

CAUTION

Runningtheenginecausestheengine,radiator,andexhaustsystem

tobecomehot.Touchingahotengine,radiator,orexhaustsystem

canburnyou.

Donottouchtheengine,radiator,orexhaustsystemwhilethe

engineisrunningorsoonafteryoustopit.

Beforestoppingthemachine

1.EnsurethatthetractionpedalisintheNEUTRALposition.

2.Loweranddisengagethecuttingdecksandwaitforallmovingpartstostop.

3.Settheparkingbrake.

4.Shutofftheengineandremovethekeyfromthekeyswitch.

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Safety:SafetyInstructions

16226SLRevD

MaintenanceandService

•Beforeservicingormakinganyadjustmentstothemachine,lowerthecutting

decks,settheparkingbrake,shutofftheengine,andremovethekeyfrom

thekeyswitch.

•Ensurethatthemachineisinsafeoperatingconditionbykeepingallthe

nuts,bolts,andscrewstight.

•Donotstorethemachineorafuelcontainerinsidewherethereisanopen

ame,suchasnearawaterheaterorfurnace.

•Ensurethatallofthehydrauliclineconnectorsaretightandthatallthe

hydraulichosesandlinesareingoodconditionbeforeapplyingpressureto

thehydraulicsystem.

•Keepyourbodyandhandsawayfrompin-holeleaksinthehydrauliclines

thatejecthydraulicuidunderhighpressure.Usecardboardorpapertond

hydraulicleaks.Thehydraulicuidescapingunderpressurecanpenetrate

theskinandcauseinjury.Ifhydraulicuidisaccidentallyinjectedintothe

skin,youmusthaveitsurgicallyremovedwithinafewhoursbyadoctor

familiarwiththistypeofinjury.Otherwise,gangrenemayresult.

•Beforedisconnectingorperforminganyworkonthehydraulicsystem,

releaseallthepressureinthesystembyparkingthemachineonalevel

surface,loweringthecuttingdeck(orimplement)completely,andthen

shuttingofftheengine.

•Usecarewhencheckingorservicingthecuttingdeck.Wearglovesand

usecautionwhenservicingthedeck.

•Toreducepotentialrehazards,keeptheengineareafreeofexcessive

grease,grass,leaves,anddirt.Cleantheprotectivescreenonthemachine

frequently.

•Ifyoumustruntheenginetoperformmaintenanceortomakeanadjustment,

keepyourhands,feet,clothing,andotherpartsofthebodyawayfromthe

cuttingdecksandothermovingparts.Keepbystandersaway.

•Donotoverspeedtheenginebychangingtheenginegovernorsetting.

Toensuresafetyandaccuracy,checkthemaximumenginespeedwitha

tachometer.

•Shutofftheenginebeforecheckingoraddingoiltotheenginecrankcase.

•Disconnectthebatterybeforeservicingthemachine.Disconnectthenegative

batterycableandthenthepositivecable.Ifbatteryvoltageisnecessaryfor

troubleshootingortestprocedures,temporarilyconnectthebattery.Connect

thepositivebatterycableandthenthenegativecable.

•Batteryacidispoisonousandcancauseburns.Avoidacidcontactwithskin,

eyes,andclothing.Protectyourface,eyes,andclothingwhenworkingwitha

battery.

•Batterygasescanexplode.Keepcigarettes,sparks,andamesawayfrom

thebattery.

•Whenchangingtheattachments,tires,orperformingotherservice,use

correctblocks,hoists,andjackstoraiseandsupportthemachine.Ensure

thatthemachineisparkedonasolidlevelsurface,suchasaconcreteoor.

Beforeyouliftthemachine,removealltheattachmentsthatmayinterfere

withthesafeandcorrectliftofthemachine.Alwaysblockthewheelswith

chocks.Useappropriatejackstandstosupporttheraisedmachine.Failing

toproperlysupportthemachinewithappropriatejackstandscancausethe

machinetomoveorfallandcanresultinpersonalinjury;refertoJacking

Instructions(page1–6).

•Ifmajorrepairsarenecessary,contactyourAuthorizedT oroDistributor.

•Whenweldingonthemachine,disconnectallthebatterycablestoprevent

damagetothemachineelectronicequipment.Disconnectthenegative

Safety:SafetyInstructions

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Groundsmaster

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16226SLRevD

MaintenanceandService(continued)

batterycableandthenthepositivecable.Disconnecttheenginewire

harnessfromtheengineECU.Also,disconnectthewireharnessconnector

fromthemachinecontrolleranddisconnecttheterminalconnectorfromthe

alternator,attachtheweldergroundcablenotmorethan610mm(2ft)from

theweldinglocation.

•Atthetimeofmanufacture,themachineconformedtothesafetystandards

forridingmowers.Toensuretheoptimumperformanceandcontinued

safetycerticationofthemachine,usegenuineT ororeplacementpartsand

accessories.Thereplacementpartsandaccessoriesofothermanufacturers

canresultinnon-conformancewiththesafetystandardsandcanvoidthe

warranty.

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Safety:SafetyInstructions

16226SLRevD

JackingInstructions

CAUTION

Failingtoproperlysupportthemachinewithappropriatejackstands

cancausethemachinetomoveorfallandcanresultinpersonal

injury.

Whenchangingtheattachments,tires,orperformingotherservices,

dothefollowingsteps:

•Usecorrectblocks,hoists,andjackstoraiseandsupportthe

machine.

•Parkthemachineonasolidlevelsurface,suchasaconcrete

oor.

•Beforeyouliftthemachine,removealltheattachmentsthatmay

interferewiththesafeandcorrectliftofthemachine.

•Alwaysblockthewheelswithchocks.

•Useappropriatejackstandstosupporttheraisedmachine.

•Donotusethecuttingdeckorimplementasajackingpoint.

RaisingtheFrontoftheMachine

g186590

Figure2

1.Frontwheel2.Frontjackingpoint

1.Settheparkingbrakeandblockthe2rearwheelswithchockstoprevent

themachinefrommoving.

2.Positionthejackundertherectangularpadonthefrontaxletube,justtothe

insideofthefrontwheel(Figure2).

3.Useajacktoraisethefrontofthemachine.

4.Positionjackstandsundertheframeasclosetothewheelaspossibleto

supportthemachine.

Safety:JackingInstructions

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RaisingtheRearoftheMachine

g186591

Figure3

1.Rearwheel3.Jackstandlocation

2.Rearaxlepivotbracket

1.Settheparkingbrakeandblockthe2frontwheelswithchockstoprevent

themachinefrommoving.

2.Positionthejacksecurelyatthecenteroftherearaxleundertheaxlepivot

bracket.Lifttherearofthemachineofftheground.

3.Positionthejackstandsundertheframetosupportthemachine(Figure3).

SafetyandInstructionalDecals

Numeroussafetyandinstructiondecalsareafxedtothetractionunitand

cuttingunitsofyourGroundsmaster.Ifanydecalbecomesillegibleordamaged,

installanewdecal.DecalpartnumbersarelistedinyourPartsCatalog.Order

replacementdecalsfromAuthorizedT oroDistributor.

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Safety:SafetyandInstructionalDecals

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Safety:SafetyandInstructionalDecals

Page1–8

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16226SLRevD

Chapter2

SpecicationsandMaintenance

TableofContents

Specications.......................................................................................................................................2–2

DecimalandMillimeterEquivalents...................................................................................................2–2

U.S.toMetricConversions................................................................................................................2–3

TorqueSpecications...........................................................................................................................2–4

IdentifyingtheFastener......................................................................................................................2–4

CalculatingtheT orqueValuesWhenUsingaDrive-AdapterWrench.................................................2–5

StandardT orqueforDry,ZincPlated,andSteelFasteners(InchSeries)............................................2–6

StandardT orqueforDry,ZincPlated,andSteelFasteners(MetricFasteners)...................................2–7

OtherTorqueSpecications...............................................................................................................2–8

ConversionFactors............................................................................................................................2–8

ShopSupplies......................................................................................................................................2–9

SpecialTools......................................................................................................................................2–11

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SpecicationsandMaintenance

16226SLRevD

Specications

InsertacopyoftheOperator’sManualsandPartsCatalogsforyourmachineat

theendofthischapter.Additionally,ifanyoptionalequipmentoraccessoriesare

installedtoyourmachine,inserttheInstallationInstructions,Operator’sManuals,

andPartsCatalogsforthoseoptionsattheendofthischapter.

Themaintenanceproceduresandrecommendedserviceintervalsforyour

machinearecoveredintheOperator’sManuals.Refertothispublicationwhen

performingtheregularequipmentmaintenance.

DecimalandMillimeterEquivalents

FractionsDecimals

mm

FractionsDecimals

mm

1/64

0.0156250.397

33/64

0.51562513.097

1/32

0.031250.794

17/32

0.5312513.494

3/64

0.0468751.191

35/64

0.54687513.891

1/16

0.06251.588

9/16

0.562514.288

5/64

0.0781251.984

37/64

0.57812514.684

3/32

0.093752.381

19/32

0.5937515.081

7/64

0.1092752.778

39/64

0.60937515.478

1/8

0.12503.175

5/8

0.625015.875

9/64

0.1406253.572

41/64

0.64062516.272

5/32

0.156253.969

21/32

0.6562516.669

11/64

0.1718754.366

43/64

0.67187517.066

3/16

0.18754.762

11/16

0.687517.462

13/64

0.2031255.159

45/64

0.70312517.859

7/32

0.218755.556

23/32

0.7187518.256

15/64

0.2343755.953

47/64

0.73437518.653

1/4

0.25006.350

3/4

0.750019.050

17/64

0.2656256.747

49/64

0.76562519.447

9/32

0.281257.144

25/32

0.7812519.844

19/64

0.2968757.541

51/64

0.79687520.241

5/16

0.31257.938

13/16

0.812520.638

21/64

0.3281258.334

53/64

0.82812521.034

11/32

0.343758.731

27/32

0.8437521.431

23/64

0.3593759.128

55/64

0.85937521.828

3/8

0.37509.525

7/8

0.875022.225

25/64

0.3906259.922

57/64

0.89062522.622

13/32

0.4062510.319

29/32

0.9062523.019

27/64

0.42187510.716

59/64

0.92187523.416

7/16

0.437511.112

15/16

0.937523.812

29/64

0.45312511.509

61/64

0.95312524.209

15/32

0.4687511.906

31/32

0.9687524.606

31/64

0.48437512.303

63/64

0.98437525.003

1/2

0.500012.70011.00025.400

1mm=0.03937inch0.001inch=0.0254mm

SpecicationsandMaintenance:Specications

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U.S.toMetricConversions

ToConvert

IntoMultiplyBy

MilesKilometers1.609

YardsMeters0.914

FeetMeters0.305

Feet

Centimeters

30.48

InchesMeters0.025

Inches

Centimeters

2.54

LinearMeasurement

InchesMillimeters25.4

SquareMilesSquareKilometers

2.59

SquareFeetSquareMeters

0.093

SquareInchesSquareCentimeters

6.452

Area

AcreHectare0.405

CubicYardsCubicMeters

0.765

CubicFeetCubicMeters

0.028

Volume

CubicInchesCubicCentimeters

16.39

Tons(Short)

MetricTons0.908

PoundsKilograms0.454

Weight

Ounces(Avdp.)Grams

28.349

Pounds/Sq.In.

Kilopascal6.895

Pressure

Pounds/Sq.In.

Bar0.069

Foot-poundsNewton-Meters1.356

Foot-poundsKilogram-Meters0.138

Work

Inch-pounds

Kilogram-Centimeters

1.152

Quarts

Liters0.946

LiquidVolume

Gallons

Liters3.785

LiquidFlow

Gallons/MinuteLiters/Minute

3.785

TemperatureFahrenheit

Celsius1.Subtract32°

2.Multiplyby5/9

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SpecicationsandMaintenance:Specications

16226SLRevD

TorqueSpecications

Therecommendedfastenertorquevaluesarelistedinthefollowingtables.For

criticalapplications,asdeterminedbyT oro,eithertherecommendedtorqueora

torquethatisuniquetotheapplicationisclearlyidentiedandspeciedinthis

ServiceManual.

Thesetorquespecicationsfortheinstallationandtighteningofthefastenerswill

applytoallthefastenerswhichdonothaveaspecicrequirementidentiedin

thisServiceManual.Thefollowingfactorsmustbeconsideredwhenapplying

thetorque:cleanlinessofthefastener,useofathreadsealant(e.g.,Loctite),

degreeoflubricationonthefastener,presenceofaprevailingtorquefeature

(e.g.,Nylocknut),hardnessofthesurfaceunderneaththeheadofthefastener,

orsimilarconditionwhichaffectstheinstallation.

Asnotedinthefollowingtables,thetorquevaluesshouldbereducedby25%

forthelubricatedfastenerstoachievethesimilarstressasadryfastener.The

torquevaluesmustbereducedwhenthefasteneristhreadedintothealuminum

orbrass.Thespecictorquevalueshouldbedeterminedbasedonthealuminum

orbrassmaterialstrength,fastenersize,lengthofthreadengagement,etc.

Thestandardmethodofcheckingthetorquecanbeperformedbymarkingaline

onthefastener(headornut)andmatingpart,thenbackoffthefastener1/4

ofaturn.Measurethetorquenecessarytotightenthefasteneruntilthelines

matchup.

IdentifyingtheFastener

g033768

Figure4

g033769

Figure5

SpecicationsandMaintenance:TorqueSpecications

Page2–4

Groundsmaster

®

4300-D

16226SLRevD

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Toro Groundsmaster 4300-D Traction Unit User manual

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