IM 110AC (7EA) 110

User Manual: IM-110

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215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com



INSTRUCTIONMANUALIM‐110

ForGasTurbineandSteamTurbine

TensionedStudsandNuts



ApplicableBoltingConnections

Fr.7EAGasTurbineto7A6Generator

Fr.7EAGasTurbinetoLoadCoupling

Fr.7EAGasTurbinetoLoadCouplingwithBalancingProvisions

Fr.7EAGasTurbineMechanicalDrive

LoadCouplingto7A6Generator

LoadCouplingto7A6GeneratorwithBalancingProvisions

SteamTurbinetoGenerator



ApplicableGEOrderingSheetPartNumbers

358A7395G001

358A7395P001

358A7395P003

358A7395P005

358A7395P007

358A7395P008

358A7395P009

358A7395P010



377A3659P001

382A6063P001



387A4804P001



 

GEPowerGeneration GENERALELECTRICCOMPANY

MLI: ____ OF ____

DATE



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.

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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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‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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Page2of40



TableofContents



SectionDescriptionPageNumber

1.0CautionsandSafetyWarnings3

2.0ScopeandGEPartNumberCrossReference4

3.0QuickChecklist7

4.0GeneralPreparations10

5.0HardwareSetPreparations12

6.0StudandNutAssembly16

7.0HydraulicTensionerEquipmentAssembly20

8.0AssemblyofTensioneronStud23

9.0StudTensioning30

10.0ThreadLocking33

11.0StudandNutRemoval34

12.0StorageInstructions36

13.0FrequentlyAskedQuestions37

14.0RevisionHistory39

Appendix

A1ECDeclarationofConformity42

Appendix

B112‐BoltTensioningPattern(GT‐LC)RecordSheet43

Appendix

B218‐BoltTensioningPattern(LC‐GEN)RecordSheet44





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

1.0CautionsandSafetyWarnings



WARNING

Impropertool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operatorswithcareful,

deliberateactionsshouldusehydraulictensioners.ContactRiverhawkCompanywithany

trainingneeds.



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.



CAUTION

Personalinjuryandequipmentdamagecanoccuriftheproperhealthandsafetycodesand

proceduresarenotfollowed.Contactthesite’shealthandsafetyofficetodetermineall

applicablesafetyrulesandregulations.



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.



CAUTION

Itisespeciallyimportanttochecktheconditionoftheconicalthreadusedtotensionthestud.

Threaddamagefrompreviousabusecanleadtofailureofthestudortensioningequipment



CAUTION

RiverhawkrecommendsthatthetensionershouldbereturnedtoRiverhawkforperiodic

inspections.Replacementofobsoletetensionersisrecommended.Functionalupgradesarealso

recommended.TheRiverhawkServiceReturnsCoordinatorshouldbenotified3‐6monthsprior

toaplannedoutagetoscheduleaninspectionservice.



WARNING

Adamagedburstdiscmustbereplacedwithawithaburstdiscofthesamedesignand

pressurerating.Donotsubstituteadamagedburstdiscwithadifferentdisctype,adifferent

pressurerating,oraforeignobject.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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Page4of40



WARNING

Toavoidfailure,ensuresafety,andproperoperation,thetensionerassemblymustbeinstalled

onastudintheflangebeforebleedingandpressurizingthetensioner.Donotusethetensioner

atanypressureunlessthetoolisinstalledonastudinaflange.



CAUTION

Donotoverstrokethetensioner.Overstroke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.



WARNING

Thesafetycagemustbeinplaceatalltimes.Whenthetensionerispressurizedhandsmustbe

keptoutofdesignatedareastoavoidanypotentialforpersonalinjury.



CAUTION

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.Thisprocedurewilleaseassemblyandassurepositivematingof

thethreadsbeforetightening.Donotuse“NeverSeize”ontheconicalthreads.



CAUTION

Donottightenthenutwhilethetooliscominguptopressure;waituntilpressureisachieved

beforeattemptingtotightenthenutwiththespannerring.Ifthetoolisnotproperlyinstalled,

thetoolcouldjumpoffthestudwhilecominguptopressure.



CAUTION

Donotexceedthemaximumpressuremarkedonthetensioner.Excessivepressurecandamage

thestudandpullerscrew.



WARNING

FIREHAZARD:DONOTheatwhenpullerassemblyisinplace.Personalinjuryorequipment

damagemayoccur.UseofanOxy‐Acetylenetorchisnotrecommended



2.0Scope



Thisdocumentdescribestheproceduretobeusedtoinstallthestudandnutsetssuppliedby

theRiverhawkCompanyintheflangesattheTurbine/Coupling,Coupling/Generator,andSteam

Turbine/Generatorconnections.

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

ThevariousframeconfigurationscoveredinthismanualarelistedinSections2.1through2.9

withdifferencesasrelatedtoconnectivehardwaredefined.Listedalsoarethepertinent

hardwaredrawings(HF‐xxxx).Thesedrawingsaswellastoolingdrawings(HT‐xxxx)formpartof

thismanual.



2.1Frame7EAGasTurbineto7A6Generator



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

GE358A7395P001HF‐0746GE269B8685



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐0716.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheGasTurbineto

LoadCoupling(2”size,Qty12)aswellastheLoadCouplingtoGenerator(2”size,Qty18).



2.2Frame7EAGasTurbinetoLoadCoupling



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

358A7395P003

358A7395P007

HF‐0747

GE359B2513



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐0716.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheGasTurbineto

LoadCoupling(2”size,Qty12).



2.3Frame7EAGasTurbinetoLoadCouplingwithBalancingProvisions



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

358A7395P009HF‐0841NotAvailable



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐0716.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheGasTurbineto

LoadCoupling(2”size,Qty12).Thedrawingalsodepictsbalanceplugsandbalancescrews(Qty

12)usedtoprovideadditionalbalancingoptions.Thebalancinghardware’sinstallation

instructionsareincludedontheRiverhawkdrawing.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

2.4Frame7EAGasTurbinetoFlexibleLoadCoupling



GENPPARTNUMBERRIVERHAWKP/N

RPO31760

RTO40684

HF‐1169

HF‐3170



SeeRiverhawkInstructionManualIM‐381.



2.5Frame7EAGasTurbineMechanicalDrive



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

377A3659P001HF‐0747GE359B2513



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐5347.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheGasTurbineto

LoadCouplingMechanicalDrive(2”size,Qty12).



2.6LoadCouplingto7A6Generator



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

GE358A7395G001

GE358A7395P005

HF‐0748

GE359B2504



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐0716.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheLoadCouplingto

Generator(2”size,Qty18).



2.7LoadCouplingto7A6GeneratorwithBalancingProvisions



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

GE358A7395P010HF‐0842NotAvailable



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐0716.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheLoadCouplingto

Generator(2”size,Qty18).Thedrawingalsodepictsbalanceplugsandbalancescrews(Qty18)

usedtoprovideadditionalbalancingoptions.Thebalancinghardware’sinstallationinstructions

areincludedontheRiverhawkdrawing.



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

2.8SteamTurbinetoGenerator



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

GE382A6063P001HF‐0748GE359B2504



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐2176.

GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

GE387A4804P001HF‐0748GE359B2504



ThehydraulictoolusedforinstallationandremovalisRiverhawkHT‐0716.



ThesehardwaredrawingsdepictthecompletestudandnutpackagefortheSteamTurbineto

Generator(2”size,Qty18).



2.9HydraulicTooling



GEPARTNUMBERRIVERHAWKP/NGEVENDOCP/N

GE358A7395P008HT‐0716

MP‐0130

GE359B2503

GE359B2506



GENPPARTNUMBERRIVERHAWKP/N

GENPRAO23423



GENPRPO31763

HT‐1168

MTP‐3241‐3

HT‐1168

SeeRiverhawkInstruction

ManualIM‐381



3.0QuickChecklist



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80psi[5.5bar]minimum.(Forair‐drivenpumps)

□

 Checkhydraulichosefordamage.

□

 Testpump.

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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373A4001

GEDRAWINGNUMBER

Page8of40



□

 Inspecttensionerforanydamage.

NUTANDSTUDPREPARATION

□

 Inspectstudsandnutsforanydamage.

□

 Cleanthestudsandnuts.

□

 Measurestudlengths.(VERYIMPORTANT)

□

 Installstudsandnutsintotheflange.

□

 Setstick‐outdimensiononthecouplingsideoftheflange.

□

 Handtightennutsonturbine/generatorsideofflange.

□

 Verifystick‐outmeasurement(VERYIMPORTANT)



TENSIONING(BoltInstallation)

□

 Checktensionerdrawingforcorrectpartsandpartnumbers.

□

 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.

□

 Installthetensioneronthestudinflangeandslide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.

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page9of40



□

 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thenuts'setscrews.



DETENSIONING(StudRemoval)

□

 Loosennuts'setscrews

□



 Inspectandcleanstuds'conicalthreads.DonotcontinueuntilALLdebrisisremoved

fromthethreads!SeeinstructionmanualIM‐220.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.

□

 Install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.

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page10of40



□

 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.



OperatorsshouldbetrainedorhavepreviousexperienceusingRiverhawktensioning

equipment.Trainingwillminimizethechanceofimproperuseoftheequipment.



Thehydraulictoolingincludingthehydraulichosesshouldbeinspectedpriortouse.Inspection

guidelinesarelistedinthefollowingsub‐sections.



Thisequipmentproducesveryhighhydraulicpressuresandveryhighforces.Operatorsmust

exercisecautionandweartheappropriatepersonalprotectiveequipmentwhenhandlingand

operatingthehydraulictooling.



High‐pressureoilfromthehydraulicpumppressurizesthetensionerwhichgeneratesavery

largeforcethatactuallystretchesthestud.Asthestudisstretchedthenutliftsofftheflange.

Thenutisthenturnedbyhandusingthesuppliedspannerring.Oncethenutistightagainstthe

flange,thepressureinthetensionerisreleased.Thehardwareisnowclampingtheflange

together.



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.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page11of40

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4.2Hardware–Balance



Thestudsaresuppliedincomponentbalancedsets.Astudcanbeexchangedwithanotherinits

setwithoutaffectedtheoverallbalanceoftheequipment.Donotexchangeastudfromoneset

withanotherstudfromadifferentset.WhenshippedfromRiverhawk,thestudsarenot

assignedtoanyspecificholeintheloadcouplingflange;thisisoptionalandcanbedoneatthe

installationsite.ThesetsizeisdeterminedbytherelevantGEorderdrawing(seesection2.0).



Thenutsaresuppliedincomponentbalancedsets.Anutcanbeexchangedwithanotherinits

setwithoutaffectingtheoverallbalanceoftheequipment.Donotexchangeanutfromoneset

withanothernutfromadifferentset.WhenshippedfromRiverhawk,thenutsarenotassigned

toanyspecificholeintheloadcouplingflange;thisisoptionalandcanbedoneatthe

installationsite.ThesetsizeisdeterminedbytherelevantGEorderdrawing(seesection2.0).



Aweightbalancecertificationissuppliedwitheachorder.Storethiscertificationinan

appropriatelocationasitwillbeneededforthepurchaseofreplacementequipment.



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.



Seesection12forlongtermstoragerequirements.



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

8”to9”micrometer





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

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4.5RiverhawkTools



HydraulicTensionerKits:



Note:Reviewsection2to

determinethecorrect

tensionertouse.

HT‐0716HydraulicTensioner,2”

(referenceGEVENDOC359B2503)

HT‐2176HydraulicTensioner,2”

HT‐5347HydraulicTensioner,2”

(referenceGEVENDOC269B8703)



ObsoleteHydraulicTensionerKits:HT‐0252HydraulicTensioner,2”

(OBSOLETE,replacedbyHT‐0716)

HT‐0286HydraulicTensioner,2”

(referenceGEVENDOC359B2512)

(OBSOLETE,replacedbyHT‐5347)



HydraulicPumpKit:MP‐0130ManualHand‐OperatedHydraulicPump

(referenceGEVENDOC359B2506)

AP‐0532Air‐OperatedHydraulicPump

(referenceGEVENDOC359B2502)



CAUTION

RiverhawkrecommendsthatthetensionersbereturnedtoRiverhawkforperiodic

inspections.Replacementofobsoletetensionersisrecommended.Functionalupgradesare

alsorecommended.TheRiverhawkServiceReturnsCoordinatorshouldbenotified3‐6

monthspriortoaplannedoutagetoscheduleaninspectionservice.



5.0HardwareSetPreparations





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

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Page13of40



5.1NutPreparation



Picture5A–RiverhawkLocknut



Ifthereisanyvisibledamageonanut,donotusethenutandcontacttheRiverhawkCompany

forareplacementnut.Pleasebepreparedtosupplytheturbinenumber,weightcertification,

anddigitalphotographsforevaluation.



5.1.1NutCleaning‐NewInstallations



Fornewinstallations,thenutsshouldcomesealedfromthefactoryandwillneednocleaning.



Beforethreadingthenutontothestud,thesetscrewsshouldbelooseandfreetoturn.



5.1.2NutCleaning‐OldInstallations



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.



Beforethreadingthenutontothestud,thesetscrewsshouldbelooseandfreetoturn.



5.1.3NutCleaning‐VeryOldInstallations



Ifpreviousinstallationsemployedathread‐lockingcompound,whichwillbevisibleasagrayish‐

greenresidue,removeasmuchofthiscompoundaspossible.Finishthecleaningprocessby

rinsinginavolatilesolventsuchasacetoneandallowtodry.



RiverhawkCompanystronglyrecommendsreplacingthisstyleofnutwiththecurrentnutwith

are‐useablemechanicallockingfeature.

Set Screw

1 of 2 Spanner Ring Holes

1 of 2

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

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

5.2StudPreparation



Checkthestudforanyvisibledamage.Ifthereisanyvisibledamage,donotusethestudand

contacttheRiverhawkCompanyforareplacementstud.Pleasebepreparedtosupplythe

turbinenumber,weightcertification,anddigitalphotographsforevaluation.



CAUTION

Itisespeciallyimportanttochecktheconditionoftheconicalthreadusedtotensionthe

stud.Threaddamagefrompreviousabusecanleadtofailureofthestudortensioning

equipment.



Theconicalthreadsofeachstudmustbecleanofgritanddirtbeforeinstallationorremoval.

Thisensurestheproperseatingofthepullerscrew.



5.2.1StudCleaning‐NewInstallations



Fornewinstallations,thestudsshouldcomesealedfromthefactoryandwillneednocleaning.



5.2.2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‐4354orasimilar1/2"diameterBrasspowerbrush.



Picture5B‐BrassPowerBrush



3. Insertthebrushintoanelectricdrillandsetdrilltoruninacounterclockwisedirection

athighspeed.



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

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.



9. Donotapplythreadlubricantssuchas“NeverSeize”tothestud’sthreads.



10. Finishthecleaningprocessbyrinsinginavolatilesolventsuchasacetoneandallowto

dry.



5.2.3StudCleaning‐VeryOldInstallations



Ifpreviousinstallationemployedathreadlockingcompound,whichwillbevisibleasagrayish‐

greenresidue,removeasmuchofthiscompoundaspossiblefromthestud’sthreads.



Finishthecleaningprocessbyrinsinginavolatilesolventsuchasacetoneandallowtodry.



5.3StudLengthMeasurement



Measureandrecordtheinitiallengths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forlaterstretchmeasurementtracking.

 Markthelocationofmeasurementonstudendwithapermanentmarker.

 Measureeachstudtonearest0.001inch(.01mm).

 Recordeachmeasurementonthesuppliedrecordsheets.

 Donotallowthemeasuringinstrumentstositinthesun.

 Thesamepersonshouldmakeallmeasurements.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

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

6.0StudandNutAssembly



Refertothehardwareassemblydrawing(HF‐xxxx)listedinSection2.0ofthismanual.

1. Assemblethecylindricalnuttotheinternal,conicalthreadendofthestud.



2. SlidethestudandcylindricalnutassemblyintotheflangeasshowninFigures6A,6B,

and6C.



Figure6A–Cross‐sectionViewofGasTurbineto

RigidLoadCouplingBoltedFlangeConnection



GasTurbine

FlangeRigidLoad

CouplingFlange

Nut

HexDrive

Stud

TensioningConical

Thread

*SetStudStick‐out

onthissideonly

Nut

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Figure6B–Cross‐sectionViewofRigidLoadCouplingorSteam

TurbinetoGeneratorBoltedFlangeConnection



Figure6C–Cross‐sectionViewofGasTurbineto

MechanicalDriveBoltedFlangeConnection

RigidLoadCouplingor

SteamTurbineFlange

Generator

Flange

Nut

HexDrive

Stud

TensioningConical

Thread

*SetStudStick‐out

onthissideonly

Nut

Turbine

Flange

Coupling

Flange

Adapter

Nut

HexDrive

Stud

TensioningConical

Thread

*SetStudStick‐out

onthissideonly

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

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

3. Installtheothernutonthebackside.



4. Adjustthenut/studassemblysothatthestudprotrudes(orsticksout)fromthefaceof

thecylindricalnutthedistancespecifiedonthehardwaredrawing(HF‐xxxx).SETTING

THISPROTRUSIONOFSTUDTONUTISCRITICALFORPROPERTENSIONEROPERATION.

Ametalstick‐outgagemaybeprovidedwiththetensionertoassisttheoperatorin

settingtheprotrusiondimension.



Picture6D–UseofStick‐outGage



5. Handtightentheassemblytoasnugfit.



6. Recheckthestudstick‐outlength.Ifthestick‐outlengthdoesnotmatchthehardware

drawing,adjustthenutsasnecessary.



7.0HydraulicTensionerEquipmentAssembly



7.1HydraulicEquipmentInspection



7.1.1HydraulicTensionerInspection



CAUTION

RiverhawkrecommendsthatthetensionerbereturnedtoRiverhawkforperiodicinspections.

Replacementofobsoletetensionersisrecommended.Functionalupgradesarealso

recommended.TheRiverhawkServiceReturnsCoordinatorshouldbenotified3‐6months

priortoaplannedoutagetoscheduleaninspectionservice.



Donotbleedtheairfromthehydrauliclinesandtensioneratthistime.Seesection8for

bleedinginstructionsonwhentobleedtheairfromthehydrauliclines.



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

WARNING

Toavoidfailure,ensuresafety,andproperoperation,thetensionerassemblymustbe

installedonastudintheflangebeforebleedingandpressurizingthetensioner.Donotuse

thetensioneratanypressureunlessthetoolisinstalledonastudinaflange.



CheckpullerscrewusagelifewithRiverhawkservicebulletinSB‐08001.



Cleanpullerscrewandcheckforanydebrisanddents.



Pullerscrewshouldbefreetorotateandmovebackandforth.



Seambetweencylindersclosedtightly.



Inspectthetensionerguardforanysignsofdamageincludingcrackedwelds.Anyguards

modifiedinthefieldshouldbereplaced.Bentguardsshouldbereplaced.



Inspecttheoutsideofthetensionerfordiscolorationpatternsthatmayindicatesubmersion

andinternaldamage.



Performaninventoryofthelooseequipmentsuppliedwiththetensioner.Aninventorylistis

providedonthetensioner’stechnicaldrawing(forexampleRiverhawkHT‐xxxx).Replacement

partsareavailablefromRiverhawk.



7.1.1.1HydraulicTensioner’sBurstDiscReplacement



Thehydraulictensioner’sburstdiscisakeyelementintheoverallsafeuseofthehydraulic

tensioner.



Eachtensionerisshippedfromourfactorywithoneburstdiscalreadyinstalledinthetensioner

andwithanothersparediscforfieldreplacement.Extraburstdiscsareavailablefrom

Riverhawkforreplacementpurposes.



Toreplaceadamagedburstdisc:

1. Removethehydraulicport’sdispersionnut,compressionring,anddamagedburstdisc.

2. Discardthedamagedburstdisc.

3. Cleanthedispersionnut,compressionring,newburstdisc,andthehydraulicportwitha

solventtoensureadirt‐freeinstallation.

4. Reassemblenewburstdisc,compressionring,anddispersionnutintothesame

hydraulicport.



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Warning

Adamagedburstdiscmustbereplacedwithawithaburstdiscofthesamedesignand

pressurerating.Donotsubstituteadamagedburstdiscwithadifferentdisctype,adifferent

pressurerating,oraforeignobject.



7.1.2HydraulicPumpKitInspection



RefertotheHydraulicPumpKitInstructionManual,IM‐293(GEVENDOC373A4058).Thelatest

revisionmaybeobtainedbycontactingRiverhawkCompanyorthruwww.riverhawk.com.



7.2HydraulicFittings



Illustration1

Riverhawktensioners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.



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Illustration3

Slidetheglandnutdownoverthecollar.(See

Illustration3)Insertthe1/4”tubeor1/4”hose

endintotensionerorhydraulicpump.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.



8.0AssemblyofTensioneronStud



ThetensionerusedinthisapplicationcanbeidentifiedbyitsYELLOWsafetyguard.Ifthe

tensioner’ssafetyguardisORANGE,adifferentsetofinstructionsarerequired.Consultthe

Riverhawkfactoryforassistance.



8.1HandlingoftheTensioner



Thetensionerusedinthisapplicationisdesignedtorequirenospecialliftinginstructions.Do

notdropanypartofthetensionerontheoperatororothernearbypersonnel.



8.2TensionerKitAssembly



Thisassemblyhasthefollowingfeatureswhichshouldmakestudtensioningsaferandeasier.



 Thesafetycageisintegral(bolted)tothetensioner

 Thehydraulicpistonisspringloadedtoretract

 Thepullerscrewisa2‐piecedesign.Thisrequiresthattheoperatortightenthepuller

screwintothestudandtheninstallapullernut.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Figure8A–Cross‐sectionViewofHT‐0716on

7EAGasTurbineLoadCouplingFlange





HexDrive

GasTurbine

OrGenerator

Flange LoadCoupling

Flange

Spanner

Ring

HydraulicBurst

DiscPort

PullerNut

SafetyCage

NutStud Nut Cylinder

Piston

PullerScrew

PinWrench

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Figure8B–Cross‐sectionViewofHT‐2176on

7EAGasTurbineLoadCouplingFlange





HexDrive

GasTurbine

OrGenerator

Flange LoadCoupling

Flange

Spanner

Ring

HydraulicBurst

DiscPort

PullerNut

SafetyCage

Nut

Stud Nut Cylinder

Piston

PullerScrew

PinWrench

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Figure8C–Cross‐sectionViewofHT‐5347on

7EAGasTurbineLoadCouplingAdapterFlange



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.(Thisisautomaticontheair‐operated

hydraulicpump)

2. Placethespannerringonthepullersidecylindricalnut.

3. 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.

4. Placeandholdthepullertoolovertheendtobetightened.

HexDrive

GasTurbine

Flan

LoadCoupling

FlangeAdapter

Spanner

RingHydraulicBurst

DiscPort

PullerNut

SafetyCage

Nut

StudNut Cylinder

Piston

PullerScrew

PinWrench

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

5. Insertthepullerscrewthroughthetensionerintothetaperedthreadofthestudand

tighten.

6. Besurenottocross‐threadtheassembly.

7. TightenthepullerscrewusingAllenwrenchesonthepullerscrewandthestud.DONOT

wrenchontheHexnutoppositethetensioner.

8. Installthepullernutuntilitseatssnuglyonthepiston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,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:



1. Backoffthepullernutandslightlyloosenthepullerscrew.

2. BackofftheHex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.



CAUTION

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.



8.3BleedingtheHydraulicSystem



WARNING

Toavoidfailure,ensuresafety,andproperoperation,thetensionerassemblymustbe

installedonastudintheflangebeforebleedingandpressurizingthetensioner.Donotuse

thetensioneratanypressureunlessthetoolisinstalledonastudinaflange.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Picture8D–BleedPortLocation



Thetensionerassemblyhasthreeports,oneforpressurizing,oneforbleedingthesystem,and

athirdpressurereliefport.Tofacilitatebleeding,startbyfirstmountingthetensionerateither

the3o’clockor9o’clockstudposition.Thebleedportmustalwaysbeorientedinthe

uppermostposition.Inaddition,makesurethatthepumpisalwayssituatedbelowthe

tensionerassembly.



Thetensionerisequipped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installing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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.





HydraulicHose

ConnectionPort

‐or–

AirBleedingPort



*Useconed‐stem

Bleederfitting

HydraulicHose

ConnectionPort

‐or–

AirBleedingPort



*Useconed‐stem

Bleederfitting

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

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.



WARNING

Thesafetycagemustbeinplaceatalltimes.Keephandsoutofdesignatedareasatalltimes

whenthetensionerispressurizedotherwisepersonalinjurycanoccur.



CAUTION

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.Thisprocedurewilleaseassemblyandassurepositivematingof

thethreadsbeforetightening.Donotuse“NeverSeize”ontheconicalthreads.



CAUTION

Donotexceedthemaximumpressuremarkedonthetensioner.Excessivepressurecan

damagethestudandpullerscrew.



CAUTION

Donottightenthenutwhilethetooliscominguptopressure;waituntilpressureisachieved

beforeattemptingtotightenthenutwiththespannerring.Ifthetoolisnotproperly

installed,thetoolcouldjumpoffthestudwhilecominguptopressure.



FlangePositionStudSize50%Pressure50%Stretch

TurbinetoCoupling2"

[51mm]

9000psi

[620bar]

Donotmeasure

Donotuse

CouplingtoGenerator2"

[51mm]

8000psi

[550bar]

Donotmeasure

Donotuse

SteamTurbineto

Generator

2"

[51mm]

8000psi

[550bar]

Donotmeasure

Donotuse



9.1.1Tighteningof2”nuts



Turnthecylindricalnutusingthespannerringandpinwrenchuntilitbottomsontheflange.



9.2RemovingtheTensionerfromanInstalledStud



Thetensionerremovalistoaccomplishedbythefollowssteps:

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

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. Unscrewthepullerscrewusingawrench.

3. Tappingtheallenwrenchwithahammermaybenecessarytoloosenthepullerscrew

4. 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.Afterallofthestuds

havebeentensioned,measurethefinalstudlength.Thefinalpressureandrequiredstretch

valuesarelistedinthefollowingtable.



WARNING

Thesafetycagemustbeinplaceatalltimes.Keephandsoutofdesignatedareasatalltimes

whenthetensionerispressurizedotherwisepersonalinjurycanoccur.



CAUTION

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.Thisprocedurewilleaseassemblyandassurepositivematingof

thethreadsbeforetightening.Donotuse“NeverSeize”ontheconicalthreads.



CAUTION

Donotexceedthemaximumpressuremarkedonthetensioner.Excessivepressurecan

damagethestudandpullerscrew.



CAUTION

Donottightenthenutwhilethetooliscominguptopressure;waituntilpressureisachieved

beforeattemptingtotightenthenutwiththespannerring.Ifthetoolisnotproperly

installed,thetoolcouldjumpoffthestudwhilecominguptopressure.



FlangePositionStudSizeFinalPressureFinalStretch

TurbinetoCoupling2"

[51mm]

19000psi

[1310bar]

0.013"‐0.015"

[0.33mm‐0.38mm]

CouplingtoGenerator2"

[51mm]

16000psi

[1100bar]

0.010"‐0.012"

[0.25mm‐0.30mm]

SteamTurbineto

Generator

2"

[51mm]

16000psi

[1100bar]

0.010"‐0.012"

[0.25mm‐0.30mm]

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page29of40



Excessivestretchvariationsorlowstretchvaluescanbecorrectedbyuninstalling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.



9.3.1Tighteningof2”nuts



Turnthecylindricalnutusingthespannerringandpinwrenchuntilitbottomsontheflange.

Thenapplytorquetoturnthenutanadditional10degrees.Thiswillaidinachievingthe

desiredstretch.



10.0ThreadLocking



Oncepullingandtensioningiscompletedallstudnutsmustbelockedinposition.Twomethods

ofthreadlockingmaybeencounteredinthefield.Earlyversionhardwarerequiredaliquid

threadlockingcompoundwhilethelaterconfigurationemploysamechanicallockingdevice.

EachmethodisdescribedindetailinSections10.1&10.2.



10.1ThreadLockingUsingaLiquidLockingCompound



Thesenutshavenovisiblelockingfeature.ContactRiverhawkCompanyifyouhaveanyof

theseolderstylenuts.



RiverhawkCompanystronglyrecommendsreplacingthisstyleofnutwiththecurrentnutwith

are‐useablemechanicallockingfeature.





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page30of40



10.2ThreadLockingUsingaMechanicalLockingDevice



Picture10A‐RiverhawkLocknut



Mechanicallocknutshavetwosetscrewslocatedinthetopface,seepicture.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"

[51mm]1/4"‐28UN65in∙lbs‐75in∙lbs

[7.3N∙m–8.3N∙m]



11.0StudandNutRemoval



Sections11.1and11.2respectivelydescribetheprocedurestobefollowedinremovingnuts

thathavebeenlockedwithliquidlockingcompoundandthosewiththemechanicallocking

feature.



11.1RemovalofAssemblieswithLiquidLockingCompound



Forthoseassemblieswhichhavebeenlockedwiththeliquidlockingcompound,removalis

accomplishedasfollows:

 Usingawirebrushandshopaircleantheinternaltaperedthreadofthestudtoremoveany

debris/depositsthatmayhaveaccumulatedduringservice.(Seesection5.2.2)

SetScrews

1of2SpannerRing

Holes

1of2

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page31of40



 InstalltheappropriatepullertooltothestudasdescribedinSection.8.0.

 Applyhydraulicpressureperthefollowingtableandwithoutusingunreasonableforce

attempttoloosenthenutusingthespannerringandspannerwrench.



FlangePositionStudSizeFinalPressure

TurbinetoCoupling2”

[51mm]

19000psi

[1310bar]

CouplingtoGenerator2”

[51mm]

16000psi

[1100bar]

SteamTurbinetoGenerator2”

[51mm]

16000psi

[1100bar]



Ifthenutcannotbeloosened,releasethepressureandrepeattheprocedure.

 Ordinarilytwoorthreeattemptsaresufficienttobreakthebond.

 Shouldthenutrefusetoloosenafterthreeattemptstheapplicationofheatwillbe

required.



CAUTION

Donotexceedthemaximumpressuremarkedonthetensioner.Excessivepressurecan

damagethestudandpullerscrew.



WARNING:

FIREHAZARD;DONOTheatwhenthetensionerisinplace.Personalinjuryorequipment

damagemayoccur.UseofanOxy‐Acetylenetorchisnotrecommended



Applyasmearof550/650‐degFtempilsticktothesideofthenutoppositetheapplicationof

heatandheatthenutusingapropanetorch.Continuetoapplyheatuntilthetempilsmear

indicatesthatthenuthasreached550/650degF.Neveroverheattoacherryredcondition.

Removethesourceofheatandasquicklyaspossiblereinstalltheappropriatepullertool,apply

theappropriatepressureperthefollowingtableandloosenthenut.Thenreleasethepressure

andremovethepullertool.



11.2RemovalofAssemblieswithMechanicalLocknuts



Forthoseassemblieswhichhavebeenlockedusingmechanicallocknuts,removalis

accomplishedasfollows:



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page32of40



1. Usingawirebrush,GT‐4354,andshopaircleantheinternaltaperedthreadofthestud

toremoveanydebris/depositswhichmayhaveaccumulatedduringservice.(seesection

5.2.2)

WithanAllen‐wrenchloosenthetwolockingsetscrewsbutdonotremovefromnut.



Picture11A‐Looseningofanut'ssetscrews



2. InstalltheappropriatepullertooltothestudasdescribedinSection8.0.



3. ApplytheappropriatehydraulicpressureperthetableofSection11.1andusingthe

spannerringandspannerwrenchesloosenthenut,thenreleasethepressureand

removethepullertool.



12.0StorageInstructions



Followthesedirectionstoproperlystoreyourhydraulictensionerandhydraulicpumpkitfor

longtermstorageandshipment.



Ifanydamageisobserved,contacttheRiverhawkCompanytoscheduleamaintenance

inspection.



12.1HydraulicPumpKitStorage



RefertotheHydraulicPumpKitInstructionManual,IM‐293(GEVENDOC373A4058).Thelatest

revisionmaybeobtainedbycontactingRiverhawkCompanyorthruwww.riverhawk.com.



12.2HydraulicTensionerStorage



Checkthetensionerforanydamage.

1. Cleanpullerscrewandcheckforanydebrisanddents.

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

REV

373A4001

GEDRAWINGNUMBER

Page33of40



2. Pullerscrewshouldbefreetorotateandmovebackandforth.

3. Seambetweenthecylinderanditsendcapisclosedtightly.

4. Inspecttensionerguardforanysignsofdamage.Bentguardsshouldbereplaced.

Missingrubberpadsmustbereplaced.



Ifanydamageisobserved,contacttheRiverhawkCompanytoscheduleamaintenance

inspection.



Placeprotectiveredplasticcapintothehydraulicport.



Coatthehydraulictensionerwithalightcoatofoilandplacethetensionerintotheoriginal

shippingcontainer.



12.3Storeshippingcontainer



Securethehydraulicpumpandhydraulictensionerintotheoriginalshippingcontainersusing

thesuppliedwoodbraces.



Sealtheoriginalshippingcontainerandstoreundershelterandprotectedfrommoisture,sand,

andgrit.



13.0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:



CanIrentahydraulictensionerkit?



Yes,Riverhawkhasrentaltensionerkitsavailableformostofourhydraulictensioners.

Q:



A:

Atensionerhaspulleditselfoutofthestud'sconicalthreads.CanIcontinueusinga

tensioneronthisstud?



No.Boththetensionerandthestudmayhavebeendamagedandmustberemoved

fromtheworkarea.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.Leavingadamaged

studinplacewillleadtoasafetyhazardonfutureoutages.



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.



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Ifastudmustbeleftinplace,paintthedamagedstudwithagenerousamountof

indelible,bright‐coloredpaint.NotifytheappropriateGESafetyandServicepersonnel.

Notethelocationofthedamagedstudintheservicesnotesforthemachine.



Q:



A:

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?



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:



A:

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?



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:



A:

Isthereaneasierwaytosupportormovethetensioneraroundthecouplingshaft?



Usetwostraps.Onearoundthecouplingshaftandtheotherattachtoanoverhead

support.Strapsmustbeslackwhileinstallingthetensioneronastudandwhile

tensioning.



Q:



A:

Thetensionerisatitsfinalpressure,butthenutcannotbeloosened.



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:



A:

HowdoIcleantheconicalthreadsonastud?



Theconicalthreadsarebestcleanedusingaspiralwoundbrassbrushinadrillas

describedinsection5.2.2



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

Q:



A:

Duringtheinitialstepsofremovingatensionedstud,thestick‐outlengthisfoundtobe

wrong.



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:



A:

Thehydraulicpumpappearstobeleaking.



Checkthehoseconnectiontothehydraulicpump.Ifthe1/4"highpressurefittingisnot

assembledcorrectlyasshowninsection7.2,itmaylooklikethepumpisleaking.Ifthe

problemcontinues,itmaybenecessarytoreturnthepumpkittotheRiverhawkfactory.

ContactRiverhawkforguidance.



Q:



A:

Thehydraulichosehasacollaronitthatcan'tbemovedbyhand



Thehydraulicfittingisshowninsection7.2.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.



Q:



A:



CanIrentahydraulictensionerkit?



Yes,Riverhawkhasrentaltensionerkitsavailableformostofourhydraulictensioners.



14.0RevisionHistory



Revision

Letter

EffectiveDateDescription

ACJul8,2016

ABSep28,2015Revisedsections8.0and8.1,Switchedfigures8Aand8B,

Insertedsection2.4,Insertedfigure6C,Updatedfigure

8B

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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Revision

Letter

EffectiveDateDescription

AAMay28,2015Updatedsection4.2,AddedRPO31763,renumbered

appendices

ZJan16,2015Updatedsections1.0,4.3andAppendixA3.

YJun13,2014AddedECDeclarationofConformity

WNov6,2012Reformatted,generalupdatetowarningsandcautions,

AddedIM‐293tosections7.1.2and12.1

VFeb27,2012Updatedstretchrecordssheetsonpages39and40

UOct19,2011AddedHT‐5347HydraulicTensionertosection4.5,

RevisedFigures1thru5,Removedfigures6thru9

TJun24,2010Revisedsection12.2:Figure4onpage33,referenced

section8.0was9.3,referencedsection9.3was10.1,

figures5,6,7onpage34‐35

SMar26,2010Revisedmetricconversionofhydraulicpressurein

Section9.3

RAug18,2009Addedsection13,revisedsection5.1,5.2,7.1.1,9.1,9.3,

and11.1

QJun10,2009Addedturbineoilandremoved“NeverSeize”from

sections1.0,3.0,8.1,8.2,and9.0

PMar25,2009Addedsections3.0and13.0

NApr07,2008Addeddualunits[metric]

MJun22,2005AddedHT‐1168,updatedadditionalinformation

LJun01,2005AddedHT‐2176,updatedadditionalinformation

KJan13,2005Movedcautionnotes

JOct24,2002GEDwgRev.ltrA,Page9para10.1

HOct02,2001AddedGEtitleblocktoallpages

InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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Revision

Letter

EffectiveDateDescription

GNov06,2000Page1,Page3para2.5,Page8section7.2deleted

FJun21,2000Page2para2.0,Page4para4.0&5.3,Page8para7.1.5

&7.2.4,Page9para10.1

EJan11,2000Page1

DAug25,1999

CJul20,1999

BApr05,1999

ADec18,1998

‐ Jul28,1997Released





InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

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,andISO4414.



Furthermore,thisequipmenthasbeenmanufacturedundertheRiverhawkqualitysystemper

ENISO9001:2008



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‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

AppendixB1



STRETCHRECORDSHEET

FORTHETURBINEEND



TURBINENUMBER:



DATE:



TECHNICIAN:



SUPERVISOR:



HOLENUMBERSTARTINGLENGTH FINALLENGTH FINALSTRETCH

1 

7 

2 

8 

3 

9 

4 

10 

5 

11 

6 

12 



InstructionManualIM‐110

215ClintonRoad

NewHartford,NY13413

Tel:+13157684855

Fax:+13157684941

Email:info@riverhawk.com

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

AppendixB2



STRETCHRECORDSHEET

FORTHEGENERATOREND



TURBINENUMBER:



DATE:



TECHNICIAN:



SUPERVISOR:



HOLENUMBERSTARTINGLENGTHFINALLENGTHFINALSTRETCH

1  

10  

2  

11  

3  

12  

4  

13  

5  

14  

6  

15  

7  

16  

8  

17  

9  

18  



IM 110AC (7EA) 110

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