riverhawk IM-139 User manual

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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E
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INSTRUCTIONMANUALIM‐139
ForGasTurbineTensionedStudsandNuts
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Fr.9HTurbineGE372A1793P002
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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:
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TheRiverhawkCompanyreservestherighttoupdatethisdocumentwithoutdisseminationornotice.The
latestrevisionmaybeobtainedbycontactingRiverhawkCompanyorthruwww.riverhawk.com.

InstructionManualIM‐139
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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373A4004
GEDRAWINGNUMBER
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TableofContents
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Section Description PageNumber
1.0 CautionsandSafetyWarnings 3
2.0 Scope 4
3.0 QuickCheck‐List 4
4.0 GeneralPreparations 7
5.0 HardwareSetPreparations 8
6.0 StudandNutAssembly 10
7.0 AssemblyofHydraulicTensionerEquipment 10
8.0 AssemblyofTensioneronStud 12
9.0 StudPullingandTensioning 13
10.0 ThreadLocking 15
11.0 Stud/NutRemoval 15
12.0 FrequentlyAskedQuestions 15
13.0 RevisionHistory 17
AppendixA1 ECDeclarationofConformity 18
AppendixA2 UKCADeclarationofConformity 19
AppendixB 22‐BoltTensioningPatternRecordSheet 23
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InstructionManualIM‐139
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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1.0CautionsandSafetyWarnings
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WARNING
Improperuseandthefailuretofollowthecorrectproceduresaretheprimaryrootcausesof
toolfailuresandpersonalinjuries.Alackoftrainingorexperiencecanleadtoincorrect
hardwareinstallationorincorrecttooluse.Onlytrainedpersonswithcareful,deliberateactions
shouldusehydraulictensioners.ContactRiverhawkwithanytrainingneeds.
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WARNING
Riskofhighpressurehydraulicfluidinjection.Riverhawktoolsoperateunderhighpressure.
Thoroughlyinspectallhosesandconnectionsfordamageorleakspriortousingthisequipment.
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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.
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WARNING
Theproperpersonalprotectiveequipmentmustbewornatalltimes.Riverhawkrecommends
ataminimum,safetyglasses,longsleeveshirt,hardhat,heavyworkgloves,andsteeltoe
shoes.
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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.
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CAUTION
DONOTEXCEEDTHEMAXIMUMPRESSUREVIBROSCRIBEDONTHEPULLERBODY.Excessive
pressurecandamagethestudandthepullerscrew.
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WARNING
FireHazard!DONOTheatwhenthepullerassemblyisinplace.Personalinjuryorequipment
damagemayoccur.UseofanOxy‐Acetylenetorchisnotrecommended.
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NOTICE
DonotusemorethreadlockingcompoundthanspecifiedorthenutmaybeVERYdifficultto
removeatdisassembly.
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CAUTION
DONOTEXCEEDTHEMAXIMUMPRESSUREVIBROSCRIBEDONTHEPULLERBODY.Excessive
pressurecandamagethestudandpullerscrew

InstructionManualIM‐139
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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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.
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2.0 Scope
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Thisdocumentdescribestheproceduretobeusedtoinstallthestudsandnutssuppliedby
RiverhawkCompanyintheflangesattheturbine/couplingconnection.Thishardwareis
depictedonthefollowingdrawing.ThisdrawingaswellasToolingdrawingformpartofthis
manual.
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 HF‐1730
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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.
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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.

InstructionManualIM‐139
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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□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)
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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andinstallspannerringontonut.
□Insert1/2”hexAllenwrenchintothebacksideofthestud.
□Tightenthepullerscrew.Thenbackoffpullerscrew1/2aturn.
□Retightenthepullerscrewandleavetight.DONOTBACKOFFPULLERSCREW.
□Tightenpullernutandthenbacknutofftwoflatsor120degreestoallowforstudstretch.
□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.

InstructionManualIM‐139
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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373A4004
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□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.
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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.Thenbackoffpullerscrew1/2aturn.
□Retightenthepullerscrewandleavetight.DONOTBACKOFFPULLERSCREW.
□Tightenpullernutandthenbacknutofftwoflatsor120degreestoallowforstudstretch.
□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.

InstructionManualIM‐139
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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373A4004
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□Movetonextstudinpattern
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4.0GeneralPreparations
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Readandunderstandallinstructionsbeforeinstalling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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.
Theremustbeprovisionsforturningtheshaftsoftheturbine,coupling,gearboxandgenerator.
Also,itwillbeadvantageoustoremoveasmanyobstructionsaspossiblefromtheflangearea,
suchasspeedprobesandconduit.
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4.2Hardware–Balance

 Hardwareissuppliedasweightbalancedsets
 StudsandNutsareinterchangeablewithinsets
 Donotmixwithothersets
 Saveweightcertificationdatasuppliedwitheachsetfor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.
 UseISO32gradeoil.
 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.
 Shipment–coattensionerwithoilandshipinoriginalcontainer


InstructionManualIM‐139
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215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
Fax:+13157684941
Email:[email protected]
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
4.4 HandTools

Severalhandwrenchesandmicrometerswillberequiredtoperforminstallationand
measurementofthestuds:

5/8”wrench
AsetofAllenWrenches
3’–4’BreakerBar
14”to15”micrometerorcaliper

4.5SpecialTools

HydraulicTensionerKit: HT‐1746HydraulicTensioner
(referenceGE359B2511)

HydraulicPumpKit: AP‐0532Air‐OperatedHydraulicPump
(recommended)
(referenceGE359B2502)


5.0PreparationofHardware

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asfollows: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‐139
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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‐139
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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
5.3StudLengthMeasurement

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themeasurementonstudendwithapermanentmarker.
 Measureeachstudtonearest0.001inch.
 Recordeachmeasurementonthesuppliedcharts.
 Donotallowthemeasuringinstrumentstosetinthesun.


6.0StudandNutAssembly

1. Refertothehardwareassemblydrawing(HF‐1730)listedinSection2.0ofthismanual.
Assemblethecylindricalnuttothetaperedthreadend(PullEnd)ofthestud.
2. SlidethestudandcylindricalnutassemblyintotheflangeasshowninFigure1and
installtheothernutonthebackside.

3. Adjustthenut/studassemblysothatthestudprotrudesfromthefaceofthecylindrical
nuttheamountdepictedonthehardwaredrawing(HF‐1730)0.180/0.200inches.
SETTINGTHISPROTRUSIONOFSTUDTONUTISCRITICALFORPROPERTENSIONER
OPERATION.
4. Hand‐tightentheassemblytoasnugfit.


7.0AssemblyofHydraulicTensionerEquipment

7.1KitAssembly

Assemblethehydraulicpumpwithitshosetothepullertoolandbleedthesystemofairper
followinginstructions.

Cleanpullerscrewandcheckforanydebrisanddents.

Pullerscrewshouldbefreetorotateandmovebackandforth.

Inspecttensionerguardforanysignsofdamage.Bentguardsshouldbereplaced.

InstructionManualIM‐139
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
215ClintonRoad
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Tel:+13157684855
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
7.1.1Fittings

Makesurebothmaleandfemalepartsarecleanandfreeofdebris;seeFigure2forfitting
configuration.Holdfemalepartsecurelywhentighteningsoastopreventdamagetothe
adjacenttubing.Ifthefittingleaksfirsttryretighteningasneeded.Ifleakingcontinuesthen
disassembleandcheckforscratchesordebrisontheseatingconicalsurfaces.Cleanas
required.Replaceplasticprotectivecapswhenfinishedwiththetooling.

7.2Pump

Pumpkitisshippedfullofhydraulicoil.Thepumpreservoircapissealedforshipment.Touse
turncaptotheventposition.Topreventoilspillageclosecapwhennotinuse,duringstorage
andshipment.LostoilshouldbereplacedwithEnerpacHydraulicOil.ISO32MineralOilmaybe
substituted,ifnecessary.

7.3BleedingHydraulicSystem

FollowthetensionerassemblyinstructionsofSection8.0.

TOAVOIDFAILURE,ENSURESAFETYANDPROPEROPERATIONTHETENSIONERASSEMBLY
MUSTBEMOUNTEDONTHESTUDBEFOREBLEEDINGTHESYSTEMANDTENSIONINGBEGINS.

1. MounttensioneronastudpertheassemblyinstructionsofSection8.0.
2. Makesurethepumpissituatedbelowthetensionerassembly.
3. Thetensionerassemblyhastwoports,oneforpressurizingandoneforbleedingthe
system.Theseportsserviceacommonchamberandthereforemaybetreated
interchangeability.Thebleedportmustalwaysbeorientedintheuppermostposition.
4. Thepullertoolisshippedwitha5/8in.[16mm]hexconedstembleederfitting
installed.Withthisfittingloosenedstrokethepumprepeatedlyuntilthestreamofoil
exitingthetoolisfreeofairthenretightenthefitting.


Note:Thehoseisstiff,useofthistoolingcanbesimplifiedbytemporarilymountingthepuller
toolononestudpriortofinaltighteningoffittings.Thiswillreducethetendencyforthe
fittingstoloosenduringuse.



InstructionManualIM‐139
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CONTENTSAREINDEPENDENTOFRIVERHAWKDOCUMENTCONTROL

215ClintonRoad
NewHartford,NY13413
Tel:+13157684855
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
8.0AssemblyofTensioneronStud

Alltensioning(pulling)willbeperformedfromthetaperedthreadendofthestudwith
orientationofthestudtotheflangeasshowninFigure1

8.1KitAssembly

Assemblethehydraulicpumpwithitshosetothetensionerandbleedout

8.1.1AssemblyofTensionerKitwithIntegralSafetyCage

RefertoTensionerAssemblydrawingandFigure3fortensionertoflangemounting.Assembly
sequenceisasfollows:
1. Openthehydraulicreturnvalveonthepumptoallowhydraulicfluidtobepushedback
fromthepullertoolintothepumpreservoirasthepullertoolistightened.(Thisis
automaticontheair‐operatedhydraulicpump)
2. Placethespannerringonthepullersidecylindricalnut.
3. Placeandholdthepullertoolovertheendtobetightened.
4. 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.
5. Insertthepullerscrewthroughthepullertoolintothetaperedthreadofthestudandhand
tighten(EnsurethatthePullerNutdoesnotbottomonthePistonwheninstallingthe
PullerScrew,IfitdoesthenthePullerScrewmaynotbeFULLYSEATED)
6. Besurenottocross‐threadtheassembly
7. TightenthepullerscrewusingAllenwrenchesonthepullerscrewandthestud.
8. Installthepullernut(showninFigure3)untilitseatssnuglyonthepistonandcompresses
thepistontoit’soriginalposition(Thiswillcompressthepistoninthetensionerand
preventoverstrokingandsealdamage)andthenback‐off2flats.Thisisparticularly
importantforremovalbecausethestudshortensduringdisassemblyandthetensioner
maythenbind.
9. AtthispointtheTensionerAssemblyMUSTBEFREETOROTATE.Inotherwords,thepuller
screwistightinthestudandthepullernuthasbeenbacked‐offthe2flats.

Note:Ifthetoolisnotfreetorotateitismostlikelythatthenutsmustberepositionedsothat
thestudmaybeshiftedslightlytothepullertoolsideoftheflange.Thiscanbeaccomplishedas
follows:



InstructionManualIM‐139
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E
Page13of23

1. Backoffthepullernutandslightlyloosenthepullerscrew.
2. Backoffthecylindricalnutoppositethepullertoolabout1/2turn.
3. Tightenthepullerscrewsidecylindricalnuttotakeuptheslack
4. Retightenthepullerscrewperaboveandcheckfortoollooseness

Note:Donotoverextendthestud.Overextensioncancausethepistontoloseitssealandleak
oil.

CAUTION
Personalinjuryandequipmentdamagecanoccurifthepullerscrewisnotsecurelyengaged
withthetaperedthreadsofthestud.Properengagementisachievedwhenthepullerscrewis
tightinthestudandthetensionerassemblyisfreetoturn.


9.0StudPullingandTensioning

Thestudswillbetensionedintwosteps,atapproximately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.

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.

WARNING
ThesafetycageMUSTbeinplaceandhandskeptoutofdesignatedareasatalltimeswhenthe
pullertool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 2.562"
[65.07mm]
7000psi
[480bar]
Donotmeasure
Donotuse


InstructionManualIM‐139
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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REV
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GEDRAWINGNUMBER
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
9.1.1TighteningofTurbinetoCouplingNuts

Tightenthecylindricalnutshand‐tightusingthepinwrenchandspannerring,asshownin
eitherFigure6orFigure7.Turnthenutuntilitbottomsontheflange.

9.2RemovingtheTensionerfromanInstalledStud

Thepullertoolremovalistobeaccomplishedasfollows:

1. Releasethepullertoolpressurebyopeningthevalveonthepump.Leavevalveopen.
(Thisisautomaticontheair‐operatedhydraulicpump)
2. Loosenthepullerscrewusinga3/8”hexkeywrench.
3. Tappingthewrenchwithahammermaybenecessarytoloosenthepullerscrew.
4. Unscrewthepullerscrewusinga3/8”hexkeywrench.
5. Movethetooltothenextstud/nutassemblytobetensioned,followingthe
sequence/patternasdefinedonthesupplieddatasheets


9.3TensioningatFinalPressure

Repeatthepullingandtighteningprocedurestatedaboveatfullpressure.Measuresthelength
ofthestudsafterallhavebeentensioned.Thefinalpressureandrequiredstretchvaluesare
listedinthefollowingtable

CAUTION
DONOTEXCEEDTHEMAXIMUMPRESSUREVIBROSCRIBEDONTHEPULLERBODY.Excessive
pressurecandamgethestudandpullerscrew.

FlangePosition StudSize FinalPressure FinalStretch
TurbinetoCoupling 2.562"
[65.07mm]
13500psi
[930bar]
0.026"‐0.029"
[0.66mm‐0.77mm]

FortheproceduresofeitherSections9.1or9.3excessivestretchvariationsorlowstretch
valuescanbecorrectedbyretensioningallorselectedstudstothepressurevaluesstatedin
theabovetable.Havefinalstretchvaluesapprovedbythesupervisorresponsibleforthe
installation



InstructionManualIM‐139
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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REV
373A4004
GEDRAWINGNUMBER
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
10.0ThreadLocking

Mechanicallocknutshavetwosetscrewslocatedinthetopface,seeFigure4.Before
threadingthenutontothestudchecktobecertainthesetscrewsarefreetoturn.Oncethe
nutisseatedtorquethesetscrewstothevaluesspecifiedinthefollowingtable.Whenseated
andtorquedtothevaluesspecifiedtheloadcreatedbythesetscrewdisplacesthethreadof
thenutintheareaofthewebcreatingthedesiredlockingaction

StudSize SetScrewSize Torque
2.562"
[65.07mm] 1/4"‐28UN 100in∙lbs‐110in∙lbs
[11.3N∙m–12.4N∙m]


11.0Stud/NutRemoval

Forthoseassembliesthathavebeenlockedusingmechanicallocknuts,removalis
accomplishedasfollows:

1. Usingawirebrushandshopaircleantheinternaltaperedthreadofthestudtoremoveany
debris/depositswhichmayhaveaccumulatedduringservice.(seesection5.2.1)
2. WithanAllen‐wrenchloosenthetwolockingsetscrewsbutdonotremovefromnutsee
Figure4.
3. InstalltheappropriatepullertooltothestudasdescribedinSection8.0.
4. ApplytheappropriatehydraulicpressureperthetableofSection9.3andusingthespanner
ringandspannerwrenchesshowninFigure3loosenthenut,thenreleasethepressureand
removethepullertool


12.0FrequentlyAskedQuestions

Thissectioncontainssomefrequentlyaskedquestionsandproblems.Ifthestepslistedheredo
notsolveyourproblem,contacttheRiverhawkCompanythruourwebsite,email,orphonecall.

Q: Atensionerhaspulleditselfoutofthestud'sconicalthreads.CanIcontinueusinga
tensioneronthisstud?



InstructionManualIM‐139
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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
A: No.Boththetensionerandthestudmayhavebeendamaged.Ifthestudistensioned,a
NutBusterrepairkit,fromRiverhawk,mustbeusedtoremovethedamagedstudby
drillingoutthenut.Riverhawkcansupplyareplacementstudandnutbasedonthe
initialweightcertificationsuppliedwiththehardwareset(seesection4.2).The
damagedtensionershouldalsobereturnedtoRiverhawkforinspectionandrepair.


Q: Thehydraulictensionerhasbeentakenuptoitsfinalpressure.Thefinalstretchlength
isshortofthefinalstretchtarget.Whatisthenextstep?

A: Donotincreasethehydraulicpressure.Checkifthehydraulicpumpissettotheright
pressure.Installthetensionerandre‐pressurizethetensionertothefinalpressurethen
recheckthestretchmeasurement.Ifthestretchvalueisstillshort,removethestud
fromtheholeandre‐measurethestud'sinitiallengththentrytoinstallthestudagain.


Q: Thehydraulictensionerhasbeentakenuptoitsfinalpressure.Thefinalstretchlength
islargerthanthefinalstretchtarget.Whatisthenextstep?

A: Removethestudfromthebolthole.Checkifthehydraulicpumpissettotheright
pressure.Re‐measurethestud'sinitiallengththentrytoinstallthestudagain.


Q: Isthereaneasierwaytosupportormovethetensioneraroundthecouplingshaft?

A: Usetwostraps.Onearoundthecouplingshaftandtheotherattachtoanyoverhead
support.Strapsmustbeslackduringmountingtensionertostudandduringtensioning.


Q: Thetensionerisatitsfinalpressure,butthenutcannotbeloosen.

A: Ifthenutscannotbeloosenedatthefinalpressure,continuallyincreasingthepressure
willnothelpandcanbedangerousandinsomecasesmakeithardertoremovethenut.
Checkthenuttoseeifitssetscrewshavebeenloosened.Checkforandremoveany
corrosionaroundthenut'sthreads.


Q: HowdoIcleantheconicalthreadsonastud?

A: Theconicalthreadsarebestcleanedusingaspiralwound brassbrushinadrillas
describedinsection5.2.1

InstructionManualIM‐139
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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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


Q: Duringtheinitialstepsofremovingatensionedstud,thestick‐outlengthisfoundtobe
wrong.

A: Donotproceed.ContactRiverhawkforassistance.Withthewrongstick‐outlength,the
hydraulictensionerhasalimitedstrokeandmaynotworkproperlyandcanbe
damaged.


Q: Thehydraulicpumpappearstobeleaking.

A: Checkthehoseconnectiontothehydraulicpump.Ifthe1/4"highpressurefittingisnot
assembled,itmaylooklikethepumpisleaking.Iftheproblemcontinues,itmaybe
necessarytoopenthepumpkit.ContactRiverhawkforguidance.


Q: Thehydraulichosehasacollaronitthatcan'tbemovedbyhand

A: Thecollarissometimesheldinplacewithathreadlockingcompound.Thispreventsthe
collarfrommovingtooeasily.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.


13.0RevisionHistory

Revision
Letter
EffectiveDate Description
E May18,2022 UpdatedECDeclarationofConformity;AddedUKCA
DeclarationofConformity
D Jan15,2015 UpdatedSection1.0,4.3and15.0.
C Jun13,2014 AddedECDeclarationofConformity
B Jun10,2009 Addedturbineoilandremoved“NeverSeize”from
sections1.0,3.0,8.1.1,and9.0
A Mar25,2009 Addedsections3and12

InstructionManualIM‐139
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E
Page18of23

‐ Dec17,2001 Released


AppendixA1

ECDeclarationofConformity


Manufacturer: RiverhawkCompany
Address: 215ClintonRoad
NewHartford,NY13413,USA


Thehydraulicpumpandbolttensioningtooldescribedinthismanualareusedforinstallingand
applyingtensiontolargeboltsthatarespecificallydesignedbyRiverhawkCompanytobe
tensionedhydraulically.

AllapplicablesectionsofEuropeanDirective2006/42/ECformachineryhavebeenappliedand
fulfilledinthedesignandmanufactureofthehydraulicpumpandbolttensioningtool
describedinthismanual.ReferencealsoISO12100:2010,ISO4413:2010,andISO4414:2010.

Furthermore,thisequipmenthasbeenmanufacturedundertheRiverhawkqualitysystemper
ENISO9001:2015

ConsulttheDeclarationofConformanceincludedwiththeshipmentofthisequipmentthat
identifiestheauthorizedRiverhawkrepresentative,applicableserialnumbers,andappropriate
signature.


InstructionManualIM‐139
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E
Page19of23

AppendixA2

UKCADeclarationofConformity


Manufacturer: RiverhawkCompany
Address: 215ClintonRoad
NewHartford,NY13413,USA


Thehydraulicpumpandbolttensioningtooldescribedinthismanualareusedforinstallingand
applyingtensiontolargeboltsthatarespecificallydesignedbyRiverhawkCompanytobe
tensionedhydraulically.

AllapplicablesectionsofSupplyofMachinery(Safety)2008havebeenappliedandfulfilledin
thedesignandmanufactureofthehydraulicpumpandbolttensioningtooldescribedinthis
manual.ReferencealsoISO12100:2010,ISO4413:2010,andISO4414:2010.

Furthermore,thisequipmenthasbeenmanufacturedundertheRiverhawkqualitysystemper
ENISO9001:2015

ConsulttheDeclarationofConformanceincludedwiththeshipmentofthisequipmentthat
identifiestheauthorizedRiverhawkrepresentative,applicableserialnumbers,andappropriate
signature.



InstructionManualIM‐139
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E
Page20of23
