riverhawk IM-269 User manual

Repairs – Rentals
Field Service
215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]
RevisionB
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INSTRUCTIONMANUALIM‐269
ForGasTurbineTensionedStudsandNuts


Fr.9FATurbinetoHITACHIGeneratorGE102T5689P001
 GE102T5689P002

Fr.9FATurbinetoLoadCouplingGE102T5689P004

LoadCouplingtoHITACHIGeneratorGE102T5689P005


 
GEPower&Water
GENERALELECTRICCOMPANY
MLI: ____ OF ____
DATE
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CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL
ISSUED:
THISDOCUMENTSHALLBEREVISEDINITSENTIRETY.ALLSHEETSOFTHISDOCUMENTARE
THESAMEREVISIONLEVELASINDICATEDINTHISVENDORSUPPLIEDDRAWINGAPPLIQUE.
REV
373A4004
GEDRAWINGNUMBER
VENDORSUPPLIED
THISDOCUMENTISFILEDUNDERTHEGEDRAWINGNUMBER.
GENOTTOREVISE.GEREVISIONLEVELISSHOWNONTHISAPPLIQUE.
GESIGNATURES
CHECKED:





TheRiverhawkCompanyreservestherighttomakechangesupdatingthisdocumentwithout
dissemination or notice. The latest revision level may be obtained by contacting Riverhawk
Companydirectlyorvisitourwebsiteatwww.riverhawk.com

Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]


REV
373A4004
GEDRAWINGNUMBER

RevisionB
Page2of34
TableofContents

Section Description PageNumber
1.0 CautionsandSafetyWarnings 3
2.0 Scope 3
3.0 QuickCheck‐List 4
4.0 GeneralPreparations 6
5.0 HardwareSetPreparations 8
6.0 StudandNutAssembly 10
7.0 AssemblyofHydraulicTensionerEquipment 12
8.0 AssemblyofTensioneronStud 15
9.0 StudTensioning 20
10.0 ThreadLocking 22
11.0 WindagePlugInstallation 23
12.0 StudandNutRemoval 25
13.0 StorageInstructions 27
14.0 FrequentlyAskedQuestions 29
15.0 RevisionHistory 31
AppendixA1 ECDeclarationofConformity 31
AppendixA2 UKCADeclarationofConformity 32
AppendixB1 TurbineSideStretchRecordSheet 33
AppendixB2 GeneratorSideStretchRecordSheet 34

Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]


REV
373A4004
GEDRAWINGNUMBER
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RevisionB
Page3of34
1.0CautionsandSafetyWarnings
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CAUTION
Personalinjuryandequipmentdamagecanoccurifthepullerscrewisnotsecurelyengagedwith
thetaperedthreadofthestud.Properengagementisachievedwhenthepullerscrewistightin
thestudandtheTensionerAssemblyisfreetorotate.

CAUTION
The “9FA gas turbine to the load coupling” flange uses a different tensioner than the “load
couplingtoHITACHIgenerator”flange.Verifythecorrecttensionerisbeingused.

WARNING
ThesafetycageMUSTbeinplaceandhandskeptoutofdesignatedareasatalltimeswhenthe
tensionerispressurizedotherwisepersonalinjurycanoccur.

CAUTION
DO NOT EXCEED THE MAXIMUM PRESSURE VIBROSCRIBED ON THE PULLER BODY. Excessive
pressurecandamagethestudandthepullerscrew.

CAUTION
DO NOT EXCEED THE MAXIMUM PRESSURE VIBROSCRIBED ON THE PULLER BODY. Excessive
pressurecandamagethestudandpullerscrew

Note:Beforethreadingthepullerscrewintothestud,carefullycheckthecleanlinessofboththe
stud'sandthepullerscrew'sconicalthreads.Besuretoremovealldirtfromtherootofthestuds’
conicalthreads.Applyalightcoatofcleanturbineoiloraspraylubricanttothepullerscrew.Do
notuse“NeverSeize”ontheconicalthreads.Thisprocedurewill ease assembly and assure
positivematingofthethreadsbeforetightening.


2.0 Scope

ThisdocumentdescribestheproceduretobeusedtoinstallstudsandnutssuppliedbyRiverhawk
Company in the flanges at the turbine/coupling and coupling/generatorconnections.This
hardwareisdepictedonthefollowingdrawings.ThesedrawingsaswellasToolingdrawingsform
apartofthismanual.

HardwareSets:
HF‐5376 HF‐5458 HF‐5459
HydraulicTensioners:
HT‐0445 HT‐5407

Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]


REV
373A4004
GEDRAWINGNUMBER
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RevisionB
Page4of34
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3.0QuickChecklist
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The following checklist is intended as a summary of the steps needed to use the Riverhawk‐
suppliedequipment.  Newpersonnelor thoseexperiencedpersonnelwhohavenot usedthe
Riverhawkequipmentrecentlyareencouragedtoreadtheentiremanual.

EQUIPMENTINSPECTION
□ Checkoillevelinhydraulicpump.
□ Checkairpressureat80psi[5.5bar]minimum.(Forair‐drivenpumps)
□ Checkhydraulichosefordamage.
□ Testpump.
□ Inspecttensionerforanydamage.
NUTANDSTUDPREPARATION
□ Inspectstudandnutsforanydamage.
□ Measurestudlength.
□ Cleanthestudsandnuts.
□ Installstudsandnuts(off‐center)intotheflange.
□ Setstick‐outdimensiononthecouplingsideoftheflange.
□ Handtightenallstuds.
□ Verifystick‐outmeasurement(VERYIMPORTANT)

Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]


REV
373A4004
GEDRAWINGNUMBER
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RevisionB
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Tensioning(Boltinstallation)
□ Matchthetensionersetuptotheflangejoint.
□ Applyalightcoatofcleanturbineoilorspraylubricanttothepullerscrew.DONOTUSE
“NEVERSEIZE”ONTHECONICALTHREADS.
□ Slidespannerringoverthepullerscrew.
□ Mountthetensioneronthestudinflange.
□ Installspannerringontonut.
□ Insert1/2”hexAllenwrenchintothebacksideofthestud.
□ Tightenthepullerscrew.
□ Backoffpullerscrew1/2turn.
□ Retightenthepullerscrewandleavetight.DONOTBACKOFFPULLERSCREW.
□ Bleedthetensioner.DoNOTbleedtensioneroffofastud!Damagetothetoolwill
result!
□ Tensionto50%.Consultmanualforcorrectpressure.
□ Usethepinwrenchinspannerringtotightennut.
□ Releasepressure,movetonextstudinpattern.
□ Repeatabovestepsatfinalpressure.
□ Measurefinalstudlengthandrecordonstretchdatasheets.Calculatestretch.
□ Torquenuts'setscrews.

Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]


REV
373A4004
GEDRAWINGNUMBER

RevisionB
Page6of34
Detensioning(Studremoval)
□ Loosennuts'setscrews
□ Inspectandcleanstuds'conicalthreads.DonotcontinueuntilALLdebrisisremoved
fromthethreads!Donottrytousethetensionertoremoveadamagedstud!
□ Applyalightcoatofcleanturbineoilorspraylubricanttothepullerscrew.DONOTUSE
“NEVERSEIZE”ONTHECONICALTHREADS.
□ Slidespannerringoverthepullerscrew.
□ Mountthetensioneronthestud.
□ Installspannerringintonut.
□ Tightenthepullerscrew.
□ Backoffpullerscrew1/2aturn.
□ Retightenthepullerscrewandleavetight.DONOTBACKOFFPULLERSCREW.
□ Bleedthetensioner.DoNOTbleedtensioneroffofastud!Damagetothetoolwill
result!
□ Applyfinalpressure.
□ Loosennutwiththespannerringandpinwrench.
□ Movetonextstudinpattern


4.0GeneralPreparations

Readandunderstandallinstructionsbeforeinstallingandtensioningstuds.

Thisequipmentproducesveryhighhydraulicpressuresandveryhighforces.Operatorsmust
exercisecaution,wearsafetyglassesandhardhatswhenusingthisequipment.

HighpressurefluidfromtheHydraulicPressureKitsystempressurizesthetensionerwhich
generatesastretchingforcethatactuallystretchesthestud.Asthestudisstretchedthenut
liftsofftheflange.Thenutisthenreseatedintopositionontheflangebyturninganutdriver

Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]


REV
373A4004
GEDRAWINGNUMBER

RevisionB
Page7of34
byhand.Whenthenutistightagainsttheflange,thepressureinthetensionerisreleased
leavingthestudloadedtoitspredeterminedvalue.

4.1MachinePreparation

Theflangetobetensionedmustbefullyclosedpriortopositioningthestudsintheflanges.
Also,itwillbeadvantageoustoremoveasmanyobstructionsaspossiblefromtheflangearea,
suchasspeedprobesandconduit.

4.2Hardware–Balance

 Hardwareissuppliedasweightbalancedsets
 Studsandnutsareinterchangeablewithinsets
 Donotintermixwithothersets
 Saveweightcertificationsuppliedwitheachsetforthepurchaseofspareparts

4.3Tensioner–CareandHandling

 Whennotinuse,thetensionershallbemaintainedinacleanenvironmentandallcapsand
plugsforhydraulicopeningsandfittingsmustbeinplace.
 Wheninuse,thetensionershallbeprotectedfromsandandgrit.
 Longtermstorage–coattensionerwithoil,returntooriginalcontainer,sealcontainerand
protectfrommoisture.DONOTSTOREOUTSIDE
 Shipment–coattensionerwithoilandshipinoriginalcontainer.

4.4 HandTools

Severalhandwrenchesandmicrometerswillberequiredtoperforminstallationand
measurementofthestuds:

5/8”wrench
1"wrench
1”SocketandImpactWrench
AsetofAllenWrenches
3’–4’BreakerBar
12”to13”micrometerorcaliper



Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]
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4.5SpecialTools

HydraulicTensionerKit: HT‐0445HydraulicTensioner
GASTURBINESIDEONLY
(referenceGE359B2507)
 HT‐5407HydraulicTensioner
GENERATORSIDEONLY
(referenceGE269B8709)

HydraulicPumpKit: AP‐0532Air‐OperatedHydraulicPump
(recommended)
(referenceGE359B2502)
 MP‐0130ManualHand‐Operated
HydraulicPump
(referenceGE359B2506)


5.0HardwareSetPreparations

5.1NutPreparation

Fornewinstallations,thenutsshouldcomesealedfromthefactoryandwillneednocleaning.

Previouslyinstallednutsrequirecleaning:Wirebrushusingapetroleum‐basedsolventto
removeanyforeignmaterialontheexternalsurfacesandthreads.

Donotapplythreadlubricantstothethreads.

Finishthecleaningprocessbyrinsinginavolatilesolventsuchasacetoneandallowtodry.

5.2StudPreparation

Fornewinstallations,thestudsshouldcomesealedfromthefactoryandwillneednocleaning.



Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
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5.2.1StudCleaning‐OldInstallations

Previouslyinstalledstudsmayrequirecleaning.Cleanconicalthreadsshouldhaveabrightand
shinyappearance.

Ifcleaningisrequired,followthesesteps:

1. Blowoutthethreadswithcompressedairtoremoveloosedebrisanddryconical
threads.Donotapplyasolventorothercleaningsolutiontothethreadsasthismay
chemicallyattackthestud.

2. UseStudCleaningKit,GT‐4253orasimilar1"diameterBrasspowerbrush.


PictureofBrassPowerBrush

3. Insertthebrushintoanelectricdrillandsetdrilltoruninacounterclockwisedirection
athighspeed.

4. Workthedrillinacircularmotionwhilemovingthebrushinandouttocleanallofthe
threads.Trynottoholdthebrushinoneplacetoolong,soasnottoremovethestud's
protectivecoating.

5. Blowoutthethreadswithcompressedairtoremovelooseneddebris.

6. Visuallyinspectthreadsforcleanliness.Threadsshouldbebrightandshiny.

7. Repeatifanydirtcanbeseeninthethreads.

8. Inspectthreadsforanydamagethatmayhavebeencausedbypreviousinstallation.

Donotapplythreadlubricantstothethreads.

Finishthecleaningprocessbyrinsinginavolatilesolventsuchasacetoneandallowtodry.


Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]
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GEDRAWINGNUMBER
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5.3StudLengthMeasurement

Studmeasurementwillrequireamicrometerorcaliper,whichwillmeasure12”to13”(304.8
mmto330.2mm).

Measureandrecordtheinitiallengthofthestuds.Thefollowingsuggestionswillimproveyour
results:

 Plantostartandfinishanyflangeinthesameday.
 Studsandflangemustbeatthesametemperature.
 Numbereachstudwithamarker.
 Markthelocationofmeasurementonstudendwithapermanentmarker.
 Measureeachstudtonearest0.001”(.02mm).
 Recordeachmeasurementonthesuppliedcharts.
 Donotallowthemicrometertosetinthesun.


6.0 Stud and Nut Assembly

RefertoHardwareAssemblyDrawing(HF‐)listedinSection2.0ofthismanual.

1. Beforethreadingthenutontothestudchecktobecertainthatthesetscrewsarefree
toturn.

2. Assemblefront‐sidenuttothetaperedthreadend(PullEnd)ofthestud.Pleasenote
thatthefrontandbacksidenutsaredifferent.

3. Slidethestudandnutassemblyintotheflangefromthecouplingsideasshownin
Figures1and2.

4. Installthenutontheback‐sideoftheflange.Pleasenotethatthefrontandbackside
nutsaredifferent.

5. Adjustthenut/studassemblysothatthestudprotrudesfromthefaceofthe
cylindricalnutbytheamountdepictedonthehardwaredrawing(fromsection2)and
showninFigures1and2.SETTINGTHISPROTRUSION(orstick‐out)OFSTUDTONUT
ISCRITICALFORPROPERTENSIONEROPERATION.Ametalstick‐outgageisprovided
withthetensionertoassisttheoperatorinsettingtheprotrusiondimension(See
Figure3forthisandothermethods).


Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[e-mail]
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GEDRAWINGNUMBER
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6. Handtightentheback‐sidenut,withoutturningthestudorfront‐sidenut,toasnugfit.


Figure1–CutawayViewofTurbineFlangeto
LoadCouplingBoltedJoint


Figure2–CutawayViewofLoadCouplingto
HitachiGeneratorBoltedJoint

Instruction Manual IM-269
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CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL
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215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[e-mail]
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

Stick‐OutGageDropGage



DigitalCalipers

Figure3–PicturesofaStick‐OutMeasurementMethods


7.0AssemblyofHydraulicTensionerEquipment

7.1CheckHydraulicEquipment

7.1.1CheckHydraulicTensioners

Cleanpullerscrewandcheckforanydebrisanddents.


Instruction Manual IM-269
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CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL
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215ClintonRoad
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Tel:+13157684855
Fax:+13157684941
Email:[email protected]
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Pullerscrewshouldbefreetorotateandmovebackandforth.

Seambetweencylindersclosedtightly.

Inspecttensionerguardforanysignsofdamage.Bentguardsshouldbereplaced.Also,besure
therubberpadisinplaceontheendoftheguard,ifmissing,replace.

7.1.2CheckHydraulicPumpKit

Thepumpkitisshippedfullofhydraulicoil.Thepumpreservoircapissealedforshipment.

Replacethegreyshippingcapwiththeredplasticreservoircap.

Tousethepump,turncaptotheventpositionandfollowtheoperatinginstructionsonthe
insidecover.

Topreventoilspillage,closecapwhennotinuse.LostoilshouldbereplacedwithEnerpac
HydraulicOil.ISO32orequivalenthydraulicoilmaybesubstituted.

Testpumpbydead‐heading(leaveportpluginplace)andrunpump–shouldholdsteady
pressure.



SamplePictureofAP‐0532HydraulicPumpwithhydraulicconnectionpluggedfortesting


Instruction Manual IM-269
CUSTOMER'SINFORMATIONBOX
CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
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7.2HydraulicFittings

Illustration1
Riverhawkhydraulicpumpsusea1/4”High
Pressureporttoconnectitshydraulichoses.The
hoseconnectorismadefromathreepiece
assembly:aglandnut,acollar,anda1/4”tubeor
1/4”hoseend.(SeeIllustration1)

Toassemblythefitting,slidetheglandnutover
the1/4”tubeor1/4”hoseend.Turnthecollar
counter‐clockwise(lefthandthread)ontothe
tubeorhoseendasshowninIllustration1.


Illustration2


Thecollarshouldbeplaced.125”(3.2mm)from
thetipofthecone.(SeeIllustration2)Itmaybe
necessarytoadjustthiscollarwithasetofvise‐
grippliers.Becarefultonotstripthethreadsoff
thetubeorhoseend.






Illustration3
Slidetheglandnutdownoverthecollar.(See
Illustration3)Insertthe1/4”tubeor1/4”hose
endintothetensioner’squickcoupler.While
firmlyholdingthetubeorhoseendtostopitfrom
rotating,turntheglandnutclockwise(righthand
thread)andtorquetheglandnutto25FT‐LBS(34
N‐m).

Tips:
 Makesureallpartsarecleanandfreefrom
debris.
 Protecttheconeontheendofthe1/4”tube
or1/4”hoseendfromscratchesasthisisthe
sealingsurface.
 Replaceredplasticcapswhenfinishedto
protectthethreadsandcone.

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

8.0AssemblyofTensioneronStud

CAUTION
The “9FA gas turbine to the load coupling” flange uses a different tensioner than the “load
couplingtoHITACHIgenerator”flange.Verifythecorrecttensionerisbeingused

RiverhawktensionerHT‐0445isfortheGASTURBINESIDEONLY.

RiverhawktensionerHT‐5407isfortheGENERATORSIDEONLY.

8.1HandlingoftheTensioner

Restthetensionerontopofthecouplingshaft.Usingastrapjustlongenoughtogoaroundthe
couplingshaft,attacheachendtothehandlesofthetensioner.Onewaytodothisistoattach
thestrapbyloopingthestrapthroughitselfandaroundthehandleofthetensionerononeside
thenaroundthecouplingshaftandfinallyattachedtothehandleontheothersidewithaD‐
shackle.Thiswillhelpholdthetensionerinplaceshoulditfalloffoftheshaft.Thestrapalso
helpstheoperatorsmovethetensioneraroundtheshaftwhiletensioning.

Ifpossible,usea‘Come‐along’orchainfallfromtheceilingofthecouplingroomandattachit
tothetensionerusingashortstrapwrappedthroughthehandlesandaroundthetopofthe
tensioner.Thiswillallowtheoperatorstoeasilymovethetensioneraroundthecouplingshaft
bysupportingtheweightofthetool.

8.2KitAssembly

Assemblethehydraulicpumpwithitshosetothetensionerandbleedouttheairperfollowing
instructionsinsection8.3.


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Samplepictureshowinghoseattachedtoatensioner


Note:Beforethreadingthepullerscrewintothestud,carefullycheckthecleanlinessofboth
thestud'sandthepullerscrew'sconicalthreads.Applyalightcoatofcleanturbineoilora
spraylubricanttothepullerscrew.Donotuse“NeverSeize”ontheconicalthreads.This
procedurewilleaseassemblyandassurepositivematingofthethreadsbeforetightening.

RefertoTensionerAssemblydrawingandphotoforviewsofthetensionertoflangemounting.
Alltensioningwillbeperformedonthecouplingsideoftheflangeconnections.


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
FigureofHT‐0445Tensioner

RubberPad
(DONOTREMOVE)
SafetyGuard
PullerScrew
PressureReliefValve
withBurstDisc
HydraulicHose
Connection
Hydraulic
Bl
eed
P
o
r
ts
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215ClintonRoad
NewHartford,NY13413
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


FigureofHT‐5407Tensioner
RubberPad
(DONOTREMOVE)
SafetyGuard
PressureReliefValve
withBurstDisc
HydraulicHose
Connection
PullerScrew
Hydraulic
Bl
eed
P
o
r
ts
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Assemblysequenceisasfollows:

 Placethespannerring(differentforeachendturbineorgenerator)overthepuller
screwonthetensioner.
 Placeandholdthetensionerassemblyovertheendofthestudtobetightened.



 Slidethepullerscrewintothetaperedthreadofthestudandhandtighten.Besurenot
tocrossthreadassembly.
 Holdthestudsteadywitha1/2”hexkeywrenchandlightlytightenthepullerscrewinto
theconicalthreadofthestudwithawrench.
 Placethespannerringonthecylindricalnutlocatedonthestud.
 AtthispointtheTensionerAssemblyMUSTBEFREETOROTATE,thepullerscrewmust
betightinthestud.DONOTBACKOFFPULLERSCREW.

Ifthetensionerisnotfreetorotatewhenthepullerscrewistightthen,either(1)thestudis
notproperlypositionedintheflangeandrecheckthestick‐outlengthandrepositionthenuts,
or(2)Thetensionerisdamagedandmustbereturnedforrepair.

CAUTION
Personalinjuryandequipmentdamagecanoccurifthepullerscrewisnotsecurelyengaged
withthetaperedthreadofthestud.Properengagementisachievedwhenthepullerscrewis
tightinthestudandtheTensionerAssemblyisfreetorotate.

8.3BleedingHydraulicSystem

FollowthetensionerassemblyinstructionsofSection8.0

Instruction Manual IM-269
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CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL
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TOAVOIDFAILURE,ENSURESAFETYANDPROPEROPERATIONTHETENSIONERASSEMBLY
MUSTBEMOUNTEDONTHESTUDBEFOREBLEEDINGTHESYSTEMANDTENSIONINGBEGINS.

Thetensionerhasfourports,oneforpressurizing,twoforbleedingthesystemandafourth
pressurereliefport.Tofacilitatebleeding,startbyfirstmountingthetensioneratthe9o’clock
studposition.Also,makesurethatthepumpisalwayssituatedbelowthetensionerassembly.

Thetensionerisequippedwith5/8"hexconedstembleederfittingsinstalledinthebleeder
ports.Withthesetwofittingsloosenedsimultaneously,strokethepumprepeatedlyuntilthe
streamsofoilexitingthetoolfromeachportarefreeofair,thenretightenthefittings.

Note:Thehoseisstiff;useofthistoolingcanbesimplifiedbytemporarilymountingthe
tensionerononestudpriortofinaltighteningoffittings.Thiswillreducethetendency
forthefittingstoloosenduringuse.


9.0StudTensioning

Thestudswillbetensionedintwosteps,at50%pressureandatfinalpressure.Followthe
tensioningsequenceforeachflangejointasdefinedonthedatasheetsfoundattheendofthis
manual

WARNING
ThesafetycageMUSTbeinplaceandhandskeptoutofdesignatedareasatalltimeswhenthe
tensionerispressurizedotherwisepersonalinjurycanoccur.

9.1Tensioningat50%pressure

Afterthetensionerisproperlyinstalledapplyhydraulicpressuretothetool.Bringthepressure
tothe50%levelinaccordancewiththefollowingtable.

FlangePosition StudSize 50%Pressure 50%Stretch
TurbinetoCoupling 2‐3/4"
[71mm]
10000psi
[690bar]
Donotmeasure
Donotuse
CouplingtoGenerator 2‐3/4"
[71mm]
8000psi
[550bar]
Donotmeasure
Donotuse
