IM 419 (D602)

User Manual: IM-419

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INSSTRUCTION MANUA
AL IM‐419
For Gas Tu
urbine Ten
nsioned
Stud
ds and Nutts
onnections
Applicable Bolting Co
D602 Ste
eam Turbine HPIP Rotor to LP Rotor

Applicable GE Orderiing Sheet Paart Numbers
126T8064P0001
126T8064P0002
126T8064P0003

GE Pow
wer Generattion

GENERAL ELECTRIIC COMPANY

VEN
NDOR SUPPLIED
GE NO
OT TO REVISE. GE REVISION LEVEL IS SHOWN
N ON THIS APPLIQUE.
TH
HIS DOCUMENT IS FILEED UNDER THE GE DRAAWING NUMBER.
THIS DOCUMENTT SHALL BE REVISED IN
N ITS ENTIRETY. ALL SH
HEETS OF THIS DOCUM
MENT ARE
THE SAME REVISSION LEVEL AS INDICATTED IN THIS VENDOR SSUPPLIED DRAWING AAPPLIQUE.
MLI:
M

_____ OF ____
GE SIGNATUREES

DATEE

GE D
DRAWING NUMBER

REV

CHECKED:
ISSSUED:

1000A1467

The Riverrhawk Compaany reserves the right to update this ddocument wiithout dissem
mination or n
notice.
The latestt revision mayy be obtained
d by contactin
ng Riverhawkk Company orr thru www.riverhawk.com
m.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
m
Email: inffo@riverhawk.com

Instructio
on Manual IM ‐419

Table of Conten
nts
Sectio
on

De
escription

Page Num
mber

1.0
0

Cautions an
nd Safety Waarnings

3

2.0
0

Scope and GE Partt Number Cr oss Reference

4

3.0
0

Quicck Checklist

5

4.0
0

Generaal Preparatioons

9

5.0
0

Hardware Set Preparaations

11

6.0
0

Stud and
d Nut Assem
mbly

14

7.0
0

Hydraaulic Tension
ner Equipmeent Assemblyy

16

8.0
0

Assembly off Tensioner oon Stud

19

9.0
0

Stud
d Tensioning

22

10.0
0

Thread Locking and
d Windage Plug Installation

25

11.0
0

Stud and Nut Remooval

27

12.0
0

Storagge Instructionns

31

13.0
0

Frequentlyy Asked Queestions

31

14.0
0

Revission Historyy

34

Appen
ndix
A1

EC Declarattion of Confoormity

35

Appen
ndix
B1

16‐Bolt Te
ensioning Pattern (HPIP‐‐LP) Record SSheet

36

215 Clintton Road
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15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
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Instructio
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1.0 Cautiions and Saffety Warninggs
WARNING
W
Improper tool use an
nd the failurre to follow the correct proceduress are the prim
mary root
causes of tool failure
es and perso
onal injuriess. A lack of training or exxperience caan lead to
incorrectt hardware installation
i
or incorrectt tool use. O
Only trained operators w
with careful,,
deliberatte actions sh
hould use hyydraulic tensioners. Con
ntact Riverh
hawk Compaany with anyy
training needs.
n
WARNING
W
Risk of higgh pressure fluid
f
injectio
on. Riverhaw
wk tools ope rate under h
high pressure. Thorough
hly
inspect all hoses and connections
c
s for damage
e or leaks pr ior to using this equipment.
CAUTION
C
e
damage
d
can occur if the proper heallth and safetty codes and
d
Personal injury and equipment
f
Contact the sitte’s health a nd safety offfice to determine all
procedurres are not followed.
applicablle safety rule
es and regulations.
WARNING
W
The prop
per personal protective equipment
e
must
m be worrn at all timees. Riverhaw
wk recommen
nds
at a minimum, safetyy glasses, lon
ng sleeve shirt, hard hatt, heavy worrk gloves, and steel toe sshoes
CAUTION
C
It is especially importtant to checck the condittion of the coonical thread used to teension the sttud.
d
from
m previous ab
buse can leaad to failure of the stud or tensionin
ng equipmen
nt
Thread damage
CAUTION
C
wk recomme
ends that the
e tensioner should
s
be reeturned to Riiverhawk for periodic
Riverhaw
inspectio
ons. Replacement of obssolete tensio
oners is recommended. FFunctional u
upgrades aree also
recomme
ended. The Riverhawk
R
Service Returrns Coordinaator should b
be notified 3
3‐6 months p
prior
to a planned outage to schedule an inspectio
on service.
WARNING
W
A damagged burst disc must be re
eplaced with
h a burst discc of the sam
me design and
d pressure
rating. Do not substittute a damaaged burst diisc with a diffferent disc type, a diffeerent pressure
rating, orr a foreign object.
WARNING
W
To avoid failure, ensu
ure safety, and
a proper operation,
o
thhe tensionerr assembly m
must be instaalled
on a stud
d in the flangge before ble
eeding and pressurizing
p
the tension
ner. Do not u
use the tensiioner
at any prressure unlesss the tool iss installed on
n a stud in a flange.
215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
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Instructio
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CAUTION
C
Personal injury and equipment
e
damage
d
can occur if the puller screw
w is not securely engaged
with the tapered threads of the stud.
s
Properr engagemennt is achieveed when the puller screw
w is
he stud and the tensioner assemblyy is free to tuurn.
tight in th
WARNING
W
The safetty cage mustt be in place
e at all times. When the ttensioner is pressurized
d hands mustt be
kept out of designate
ed areas to avoid
a
any po
otential for ppersonal inju
ury.
CAUTION
C
hreading the
e puller screw
w into the sttud, carefull y check the cleanliness of both the
Before th
stud's an
nd the puller screw's con
nical threadss. Apply a lig ht coat of clean turbine oil or a spraay
lubricantt to the pulle
er screw. Thiis procedure
e will ease asssembly and
d assure positive mating of
the threaads before tiightening. Do
D not use “N
Never Seize”” on the con
nical threadss.
CAUTION
C
ure is achievved
Do not tighten the nut while the tool is comiing up to preessure; waitt until pressu
o tighten the
e nut with th
he spanner rring. If the to
ool is not pro
operly installed,
before atttempting to
the tool could
c
jump off
o the stud while comin
ng up to presssure.
CAUTION
C
m
pre
essure marked on the teensioner. Exccessive pressure can dam
mage
Do not exxceed the maximum
the stud and puller screw.
WARNING
W
FIRE HAZZARD: DO NOT heat when puller asssembly is in place. Perso
onal injury o
or equipment
damage may occur. Use
U of an Oxxy‐Acetylene
e torch is not recommen
nded
WARNING
W
onical thread
ds.
Do not use a hydraullic tensionerr to remove a stud with damaged co

e and GE Part Number Cross
C
Refere
ence
2.0 Scope
This docu
ument descrribes the pro
ocedure to be
b used to innstall the stud, nut, and w
windage plu
ug
sets supp
plied by the Riverhawk Company
C
in the flanges aat the HPIP tto LP connecctions.
The hydrraulic toolingg used in thiss application
n can be idenntified by itss ORANGE saafety guard. If
the safetty guard is YEELLOW, a diffferent set of
o instructionns are requirred. Consultt the Riverhaawk
factory fo
or assistance
e.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
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The vario
ous frame co
onfigurationss covered in this manua l are listed in Sections 2
2.1 through 2
2.2
with diffe
erences as related to connective hardware definned. Listed aalso are the pertinent
hardware
e drawings (HF‐xxxx). Th
hese drawinggs as well ass tooling draw
wings (HT‐xxxxx) form paart of
this manual.
2 Steam Turb
bine HPIP Ro
otor to LP Ro
otor
2.1 D602
GE Part Number
N
126T8064P0001

Riverhaw
wk P/N
HF‐7956
6

GE VENDOC P
P/N
GE 101B0709
9

The hydrraulic toolingg used for installation an
nd removal i s Riverhawkk HT‐7967.
These haardware drawings depicct the stud, nut, and wi ndage plug set for the HPIP rotor to LP
rotor (2‐3
3/4” size, Qtty 16).
2.2 Hydraulic Toolingg
N
GE Part Number
126T8064P0002
126T8064P0003

Riverhaw
wk P/N
HT‐7967
7
AP‐6048
8

GEE VENDOC P
P/N
GEE 101B0710
GEE 269B8768

3.0 Quickk Checklist
The following checklist is intende
ed as a summ
mary of the steps needeed to use thee Riverhawkk‐
supplied equipment.. New person
nnel or those experienc ed personneel who have not used th
he
Riverhaw
wk equipmen
nt recently are
a encouragged to read tthe entire m
manual.
EQUIPMENT INSPECTION

□

Che
eck oil level in hydraulic pump.

□

Che
eck air presssure at 80psii [5.5 bar] minimum. (Foor air‐driven pumps)

□

Che
eck hydraulicc hose for daamage.

□

Tesst pump.

□

Insp
pect tension
ner for any damage.
d

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
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NUT AND
D STUD PREP
PARATION

□

Insp
pect studs, nuts
n and win
ndage plugs for any dam
mage.

□

Clean the studss, nuts, and windage
w
plu
ugs.

□

Me
easure and re
ecord stud le
engths. (VER
RY IMPORTA
ANT)

□

Lub
bricate the sttud’s thread
ds with clean
n turbine oil or spray lub
bricant. Lubrricate the nu
ut’s
threads and nu
ut face with clean
c
turbine oil or sprayy lubricant.

□

Insttall studs and nuts (off‐ccenter) into the flange.

□

Sett stick‐out dimension on the HPIP sid
de of the flannge.

□

Witth Allen wrench in backsside of stud, firmly seat backside nut using span
nner ring and
d pin
wre
ench.

□

Verrify stick‐outt measureme
ent (VERY IM
MPORTANT))

TENSION
NING (Bolt In
nstallation)

□

Che
eck tensione
er drawing fo
or correct paarts and partt numbers.

□

App
ply a light co
oat of clean turbine
t
oil or
o spray lubriicant to the puller screw
w. DO NOT U
USE
“NEEVER SEIZE” ON THE CO
ONICAL THREEADS.

□

Insttall the reten
ntion screwss into the ad
djacent studss on either sside of the sttud to be
ten
nsioned.

□

Insttall the span
nner ring ontto the nut.

□

Thrread the puller screw intto the stud.

□

Inse
ert an Allen wrench into
o the back sid
de of the stuud.

□

Inse
ert another Allen wrench into the puller screw. While holding the stud still, tighten
n the
puller screw un
ntil hand tigh
ht and then loosen the ppuller screw 1/2 of a turn. Retighten
n the
puller screw an
nd leave tigh
ht. DO NOT BACK
B
OFF PU
ULLER SCREW
W.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
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Instructio
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□

Slid
de the correcct foot over the puller sttud and orieentate the fo
oot into posittion.

□

Thrread the tensioner onto puller screw
w until it stopps. There should be a 1//16” to 3/16
6” gap
bettween the fo
oot and tensioner.

□

Place the guard
d over tensio
oner and possition the guuard’s pockeeted slots intto retention
scre
ews.

□

Tighten the guaard’s knurled
d interlock fitting by hannd until it prresses firmlyy against
ten
nsioner (no gap).
g

□

The
e retention screws
s
must be inside th
he guard’s poocketed slotts.

□

Pussh the center of the interlock fitting towards thee tensioner w
while pullingg back on the
fitting’s pull tab
bs until it loccks onto the tensioner aand release tthe pull tabss.

□

Insttall the backkside guard to
t cover stud
d to be tensiioned.

□

Con
nnect the hyydraulic pum
mp to the ten
nsioner and ttension to 550%. Consultt manual for
corrrect pressurre.

□

Use
e the pin wre
ench to turn
n the spanne
er ring to firm
mly tighten n
nut with 20 fft∙lbs [27 N∙m
m] of
torque.

□

Release pressure and allow
w the tension
ner to fully rretract.

□

Disconnect the hose and re
elease the in
nterlock fittinng by pushin
ng the centeer of the inteerlock
fitting towards the tensioner while pulling back onn the fitting’ss pull tabs.

□

Rem
move the baackside guard
d.

□

Loo
osen the knu
urled interlocck fitting and
d remove thhe guard.

□

Unsscrew the te
ensioner from
m the pullerr screw.

□

Rem
move the foo
ot, puller scrrew, spanne
er ring, and tthe retention
n screws.

□

Mo
ove to the ne
ext stud in th
he pattern. Tension
T
all sttuds to 50%
% before procceeding to fiinal
pre
essure.

□

Rep
peat above steps
s
at final pressure.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
m

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□

Me
easure final stud
s
length and
a record on
o stretch daatasheets. C
Calculate finaal stretch
measurement.

□

Torrque the nutts' set screws.

□

ws.
Insttall the wind
dage plugs and torque th
heir set screw

DETENSIONING (Stud Removal)

□

Loo
osen the win
ndage plugs’ set screws and
a remove the windage plugs from
m the studs.

□

Loo
osen nuts' se
et screws.

□

Insp
pect and clean studs' co
onical thread
ds. Do not co
ontinue unttil ALL debriss is removed
d
from the threa
ads! See insttruction man
nual IM‐220 . Do not tryy to use the tensioner to
o
rem
move a dama
aged stud!

□

App
ply a light co
oat of clean turbine
t
oil or
o spray lubriicant to the puller screw
w. DO NOT U
USE
“NEEVER SEIZE” ON THE CO
ONICAL THREEADS.

□

Insttall the reten
ntion screwss into the ad
djacent studss on either sside of the sttud to be
ten
nsioned.

□

Insttall the span
nner ring ontto the nut.

□

Thrread the puller screw intto the stud.

□

Inse
ert an Allen wrench into
o the back sid
de of the stuud.

□

Inse
ert another Allen wrench into the puller screw. While holding the stud still, tighten
n the
puller screw un
ntil hand tigh
ht and then loosen the ppuller screw 1/2 of a turn. Retighten
n the
nd leave tigh
ht. DO NOT BACK
B
OFF PU
ULLER SCREW
W.
puller screw an

□

Slid
de the correcct foot over the puller sttud and orieentate the fo
oot into posittion.

□

Thrread the tensioner onto puller screw
w until it stopps. There should be a 1//16” to 3/16
6” gap
bettween the fo
oot and tensioner.

□

Place the guard
d over tensio
oner and possition the guuard’s pockeeted slots intto retention
ews.
scre

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
m

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Instructio
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□

Tighten the guaard’s knurled
d interlock fitting by hannd until it prresses firmlyy against
ten
nsioner (no gap).
g

□

The
e retention screws
s
must be inside th
he guard’s poocketed slotts.

□

Pussh the center of the interlock fitting towards thee tensioner w
while pullingg back on the
fitting’s pull tab
bs until it loccks onto the tensioner aand release tthe pull tabss.

□

Insttall the backkside guard to
t cover stud
d to be tensiioned.

□

Con
nnect the hyydraulic pum
mp to the ten
nsioner and ttension to fiinal pressuree. Consult
manual for correct pressurre.

□

osen nut with the spanner ring and pin
p wrench.
Loo

□

Release pressure and allow
w the tension
ner to fully rretract.

□

Disconnect the hose and re
elease the in
nterlock fittinng by pushin
ng the centeer of the inteerlock
fitting towards the tensioner while pulling back onn the fitting’ss pull tabs.

□

Rem
move the baackside guard
d.

□

Loo
osen the knu
urled interlocck fitting and
d remove thhe guard.

□

Unsscrew the te
ensioner from
m the pullerr screw.

□

Rem
move the foo
ot, puller scrrew, spanne
er ring, and tthe retention
n screws. It m
may be
neccessary to insert an Allen
n wrench intto the backside of the sttud to removve the pullerr
scre
ew.

□

ove to next stud in pattern
Mo

4.0 Gene
eral Preparattions
Read and
d understand
d all instructtions before installing annd tensionin
ng studs.
Operatorrs should be trained or have
h
previou
us experiencce using Riveerhawk tensiioning
equipme
ent. Training will minimizze the chancce of impropper use of the equipmen
nt.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
m

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The hydrraulic toolingg including the hydraulicc hoses shouuld be inspeccted prior to
o use. Inspecction
guideline
es are listed in the follow
wing sub‐secctions.
This equiipment prod
duces very high hydraulic pressures and very higgh forces. O
Operators mu
ust
exercise caution and wear the ap
ppropriate personal
p
protective equipment when handling aand
ulic tooling.
operatingg the hydrau
High‐pressure oil from the hydraaulic pump pressurizes
p
t he tensioner which generates a very
large forcce that actuaally stretche
es the stud. As
A the stud iis stretched the nut lifts off the flangge.
The nut is then turne
ed by hand using
u
the sup
pplied spannner ring. Oncce the nut is tight againsst the
flange, th
he pressure in the tensio
oner is released. The harrdware is no
ow clampingg the flange
together.
4.1 Mach
hine Prepara
ation
The flangge to be tenssioned mustt be fully clossed prior to positioning of studs in tthe flanges.
Turning the
t turbine shafts
s
is not required, bu
ut may be usseful. Also, iit will be advvantageous tto
remove as
a many obsstructions as possible fro
om the flangge area, such
h as speed probes, shipp
ping
plates, an
nd conduit.
4.2 Hardware – Balance
The studs are supplie
ed in compo
onent balancced sets. A sttud can be eexchanged w
with another stud
in its set without affe
ected the ovverall balance of the equuipment. Do not exchangge a stud fro
om
one set with
w anotherr stud from a different set. When shhipped from Riverhawk, the studs arre
not assiggned to any specific
s
hole
e in the load coupling fla nge; this is o
optional and
d can be don
ne at
the installation site. The
T set size is determine
ed by the reelevant GE order drawingg (see sectio
on
2.0).
d in compon
nent balance
ed sets. A nuut can be excchanged with another nut in
The nuts are supplied
o the equip ment. Do no
ot exchange a nut from o
one
its set without affectted the overall balance of
set with another nut from a diffe
erent set. When shippedd from Riverrhawk, the nuts are not
assigned to any speccific hole in the load coupling flange;; this is optio
onal and can
n be done att the
on site. The set size is de
etermined by
b the relevaant GE orderr drawing (seee section 2..0).
installatio
A weightt balance cerrtification is supplied witth each ordeer. Store thiss certificatio
on in an
appropriate location as it will be needed for the purchasse of replaceement equip
pment.
4.3 Tensiioner – Care
e and Handliing
When no
ot in use, the
e tensioner shall
s
be main
ntained in a clean enviro
onment and all caps and
d
plugs for hydraulic openings and
d fittings musst be in placce.
215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
m

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Use ISO 32
3 grade oil..
When in use, the ten
nsioner shall be protecte
ed from sandd and grit.
ements.
See section 12 for long term storrage require
4.4 Hand
d Tools
Several hand
h
wrench
hes and micrrometers maay be requireed to perforrm installatio
on and
measurement of the studs:
5/8” Wre
ench
3/4” Wre
ench
A set of Allen
A
Wrenches
3’ to 4’ Breaker
B
Bar
12” to 13
3” Micrometter or Caliper
4.5 Speciial Tools
Hydraulicc Tensioner Kit:

HT‐‐7967 Hydraaulic Tension
ner, 2‐3/4”
(referencee GE VENDOC
C 101B0710
0)

Hydraulicc Pump Kit:

AP‐‐6048 Air‐Opperated Hyd
draulic Pump
p
(referencee GE VENDOC
C 269B8768)

CAUTION
C
wk recomme
ends that the tensionerss be returneed to Riverhawk for perriodic
Riverhaw
inspectio
ons. Replace
ement of ob
bsolete tensioners is reccommended
d. Functionaal upgrades are
also reco
ommended. The Riverhawk Service
e Returns Co
oordinator sshould be no
otified 3‐6
months prior
p
to a pla
anned outagge to schedu
ule an inspeection servicce.

5.0 Hardware Set Preparations

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
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5.1 Nut Preparation
P

(2)
( Locking
Set
S Screws

(2
2) Spanner
R
Ring Holes

Picture 5A ‐ Riverhawk Locknut
If there iss any visible damage on a nut, do no
ot use the nuut and contaact the Riverrhawk Comp
pany
for a replacement nu
ut. Please be
e prepared to
o supply thee turbine num
mber, weigh
ht certificatio
on,
and digital photograp
phs for evalu
uation.
5.1.1 Nutt Cleaning ‐ New Installaations
For new installationss, the nuts sh
hould come sealed from
m the factoryy and will need no cleaniing.
5.1.2 Nutt Cleaning ‐ Old Installations
Previously installed nuts
n require cleaning as follows: Wirre brush usin
ng a petroleeum‐based
solvent to remove an
ny foreign material
m
on th
he external ssurfaces and
d threads.
5.2 Stud Preparation
n
Check the stud for an
ny visible damage. If the
ere is any vissible damagee, do not usee the stud an
nd
contact the
t Riverhaw
wk Companyy for a replaccement studd. Please be prepared to
o supply the
turbine number,
n
weight certificaation, and diggital photoggraphs for evvaluation.
CAUTION
C
It is espe
ecially imporrtant to checck the condiition of the conical threead used to ttension the
stud. Thrread damage from prevvious abuse can
c lead to ffailure of th
he stud or teensioning
equipme
ent.
The coniccal threads of
o each stud must be cle
ean of grit annd dirt beforre installatio
on or removaal.
This ensu
ures the proper seating of
o the pullerr screw.

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5.2.1 Stu
ud Cleaning ‐ New Installlations
For new installationss, the studs should
s
come
e sealed from
m the factorry and will neeed no clean
ning.
ud Cleaning ‐ Old Installaations
5.2.2 Stu
Previously installed studs
s
may re
equire cleaniing. Clean coonical thread
ds should haave a bright and
shiny app
pearance.
If cleanin
ng is required
d, follow the
ese steps:
ed air to rem
move loose d
debris and dry conical
1. Blow out the threads with compresse
th
hreads. Do not
n apply a solvent or other cleaningg solution to
o the threadss as this mayy
ch
hemically attack the stud.
U Stud Cleaaning Kit, GTT‐4253 or a similar
s
1" diaameter Brass power bru
ush.
2. Use

Picture 5B ‐ Brass Poweer Brush
nsert the bru
ush into an electric
e
drill and
a set drill to run in a ccounterclockkwise direction
3. In
att high speed
d.
4. Work
W
the drill in a circulaar motion wh
hile moving tthe brush in
n and out to clean all of tthe
th
hreads. Try not
n to hold the
t brush in one place tooo long, so aas not to rem
move the stu
ud's
protective coating.
ed air to rem
move loosened debris.
5. Blow out the threads with compresse
V
inspe
ect threads for
f cleanliness. Threads should be bright and shiny.
6. Visually
7. Repeat if any dirt can be seen in the threads.
t
8. In
nspect threads for any damage that may have b een caused by previouss installation.
9. Do
D not apply “Never Seizze” to the stu
ud’s threadss.
10. Finish the cleaning process by rinsingg in a volatilee solvent succh as aceton
ne and allow
w the
sttud to dry.

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5.3 Stud Length Mea
asurement
Measure
e and record the initial sttud lengths. The followinng suggestio
ons will imprrove your results.









Plan to start and finish any flange in
n the same d
day.
Sttuds and flange must be
e at the sam
me temperatture.
Number
N
each
h stud with a marker forr later stretcch measurem
ment trackin
ng.
Mark
M
the loca
ation of meaasurement on
o stud end
d with a perm
manent marrker.
Measure
M
each stud to ne
earest 0.001 inch (.01 m
mm).
Record
R
each measureme
ent on the su
upplied reco
ord sheets.
Do
D not allow the measurring instrum
ments to sit in the sun.
The same person should make all measurementts.

6.0 Stud and Nut Asssembly
manual.
Refer to the hardwarre assembly drawing (HFF‐xxxx) listedd in Section 2.0 of the m
1. Assemble
A
the
e cylindrical nut to the in
nternal, coniical thread eend of the stud.
2. Lu
ubricate the
e stud’s threaads with cleaan turbine ooil or spray lu
ubricant.
3. Lu
ubricate the
e nut’s threads and nut face
f
with cleean turbine o
oil or spray lubricant.
4. Slide the stud
d and cylindrrical nut asse
embly into tthe flange ass shown in Figure 6A.

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Stud
Fro
ont Side Nutt

Back Side Nut

Hex Drive

Tensioning
T
Coniccal Thread
* Set Stu
ud Stick‐out
on th
his side only

LP Rotor
Flange

HP
PIP Rotor
Flange

Fiigure 6A – Cross‐section View
V
of Steam
m Turbine HPIIP Rotor to
LP Rotor Boltted Flange Coonnection

5. In
nstall the oth
her nut on th
he backside..
6. Adjust
A
the nu
ut/stud assem
mbly so thatt the stud prrotrudes (or sticks out) ffrom the face of
th
he cylindricaal nut the disstance speciffied on the hhardware drrawing (HF‐xxxxx). SETTIN
NG
THIS PROTRU
USION OF STTUD TO NUTT IS CRITICALL FOR PROPEER TENSION
NER OPERATTION.
A metal stick‐‐out gage is provided wiith the tensiooner to assisst the operaator in setting the
protrusion dimension.

e 6B – Use of
o Stick‐Out Gage
G
on the D602 HPIP‐LP Flange Jo
oint
Picture
Note
e: The D202 stick‐out gagge is used onn this speciaal application
n

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Picture 6C
6 – Use of Drop Gage to
t
measure
m
sticck‐out

Picture 66D – Use of Calipers to
measure stickk‐out

W Allen wrrench in bacckside of stud
d, firmly seaat backside n
nut using spaanner ring and
7. With
pin wrench.
8. Recheck the stud
s
stick‐ou
ut length. If the
t stick‐outt length doees not match
h the hardwaare
drawing, adju
ust the nuts as necessaryy.

7.0 Hydraulic Tensio
oner Equipm
ment Assemb
bly
7.1 Hydraulic Equipm
ment Inspection
draulic Tenssioner Inspecction
7.1.1 Hyd
CAUTION
C
Riverhaw
wk recomme
ends that the tensioner be returned
d to Riverhaawk for perio
odic inspecttions.
Replacem
ment of obso
olete tensio
oners is reco
ommended. Functional u
upgrades arre also
recomme
ended. The Riverhawk Service
S
Retu
urns Coordin
nator should
d be notified
d 3‐6 month
hs
prior to a planned outage to sch
hedule an inspection serrvice.
n require bleeding.
b
See section 8.33
This tenssioner does not
WARNING
W
a proper operation, tthe tensioneer assemblyy must be
To avoid failure, enssure safety, and
n the flange before blee
eding and prressurizing tthe tensioneer. Do not usse
installed on a stud in
nless the too
ol is installeed on a stud in a flange.
the tensiioner at anyy pressure un
Clean puller screw an
nd check forr any debris and dents.

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Inspect the tensioner guard for any
a signs of damage inclluding cracked welds. An
ny guards
modified
d in the field should be re
eplaced. Ben
nt guards shhould be replaced. Also, be sure the
rubber pad is in place
e on the bacck side guard
d, if missing,, replace.
o the tensio
oner for disco
oloration paatterns that m
on
Inspect the outside of
may indicatee submersio
e.
and interrnal damage
Perform an inventoryy of the loosse equipmen
nt supplied w
with the tenssioner. An in
nventory listt is
provided
d on the tenssioner’s tech
hnical drawin
ng (Riverhaw
wk HT‐xxxx liisted in section 2.0 and 4.5).
Replacem
ment parts are available from Riverh
hawk.
H
Ten
nsioner’s Bu
urst Disc Rep
placement
7.1.1.1 Hydraulic
The hydrraulic tension
ner’s burst disc
d is a key element
e
in tthe overall safe use of th
he hydraulic
tensioner. The burst disc’s location is shown on the tenssioner’s tech
hnical drawin
ng (Riverhaw
wk
l
in secttion 2.0 and 4.5).
HT‐xxxx listed
Each tensioner is shipped from our
o factory with
w one burrst disc alreaady installed in the tensioner
and with another spaare disc for field
f
replace
ement. Extraa burst discs are available from
wk for replaccement purp
poses.
Riverhaw
To replacce a damage
ed burst disc:
1. Remove the hydraulic
h
po
ort’s dispersion nut, com
mpression rin
ng, and damaaged burst d
disc.
2. Discard
D
the damaged burrst disc.
3. Clean the disp
persion nut, compressio
on ring, new burst disc, aand the hydraulic port w
with a
so
olvent to ensure a dirt‐free installation.
4. Reassemble new
n burst diisc, compresssion ring, annd dispersion nut into th
he same
hydraulic porrt.
Warning
W
me design and pressuree
A damagged burst dissc must be replaced witth a burst dissc of the sam
rating. Do
D not substiitute a damaaged burst disc
d with a d
different disc type, a diffferent presssure
rating, or a foreign object.
o
draulic Pump Kit Inspecction
7.1.2 Hyd
Refer to the Hydraulic Pump Kit Instruction Manual,
M
IM‐‐293 (GE VEN
NDOC 373A4
4058). The laatest
revision may
m be obtaained by con
ntacting Rive
erhawk Comppany or thru
u www.riverhawk.com.

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7.2 Hydraulic Fittings
Riverhawk hhydraulic pu
umps use a 1
1/4” High
Pressure poort to connecct its hydrau
ulic hoses. Th
he
hose conneector is madee from a threee piece
assembly: a gland nut, a collar, and
d a 1/4” tubee or
1/4” hose eend. (See Illu
ustration 1)
To assemblyy the fitting,, slide the gland nut oveer
the 1/4” tubbe or 1/4” h
hose end. Turn the collarr
counter‐cloockwise (left hand thread) on to the
tube or hosse end as sho
own in Illustration 1.
Illustratio
on 1

The collar should be plaaced .125” (3
3.2 mm) from
the tip of thhe cone. (Seee Illustration
n 2) It may b
be
necessary t o adjust thiss collar with a set of visee‐
grip pliers. Be careful tto not strip the threads o
off
the tube or hose end.
Illustratio
on 2
Slide the glaand nut dow
wn over the ccollar. (See
Illustration 3) Insert the 1/4” tube or 1/4” hosee
end into thee tensioner’s quick coup
pler. While
firmly holding the tube or hose end
d to stop it frrom
rotating, tu rn the gland
d nut clockwise (right haand
o 25 FT‐LBS (34
thread) andd torque the gland nut to
N‐m).

Illustratio
on 3

Tips:
 Make suure all parts are clean an
nd free from
m
debris.
 Protect the cone on
n the end of the 1/4” tub
be
or 1/4” hose end fro
om scratchees as this is the
sealing ssurface.
 Replacee red plastic caps when ffinished to
protect the threadss and cone.

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8.0 Assem
mbly of Tensioner on a Stud
The tensioner used in this application can be
e identified bby its ORANG
GE safety gu
uard. If the
tensioner’s safety gu
uard is YELLO
OW, a differe
ent set of insstructions arre required. Consult the
wk factory fo
or assistance.
Riverhaw
8.1 Hand
dling of the Tensioner
T
The tensioner used in this application is desiigned to req uire no speccial lifting insstructions. D
Do
not drop any part of the tensioner on the op
perator or otther nearby personnel.
8.2 Kit Asssembly
Connect the hydraulic hose from
m the hydrau
ulic pump to the tensioner.
Refer to the hardwarre assembly drawing (HFF‐xxxx) listedd in Section 2.0 of this m
manual and tthe
tensioner assembly drawing
d
(HT‐‐xxxx) listed in Section 44.5 of this maanual to dettermine how
w the
tensioner must be asssembled on
n the load co
oupling for itts correct op
peration.

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Pin Wreench

HPIP Rottor
Flange

Safety
Guard

Foot
Reten
ntion
Screw
w

Hose
Conne
ection

Hydrauulic
Cylindeer

Picture
P
8A – Features of the Hydraul ic Tensionerr HT‐7967

Safetty Guard

Pin Wrencch

Foot

Hose
Con
nnection

Backside
Saafety Guard

Knurled
Interlocck Fitting
Hydrraulic Cylinde
er Spannerr Ring

Puuller Screw

Fiigure 8B – Cutaway view
w of Hydraullic Tensionerr HT‐7967
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Note: Be
efore threading the pulle
er screw into the stud, ccarefully cheeck the cleaanliness of b
both
the stud''s and the pu
uller screw'ss conical thrreads. Applyy a light coatt of clean tu
urbine oil or a
spray lub
bricant to th
he puller scre
ew. Do not use
u “Never Seize” on th
he conical th
hreads. This
procedurre will ease assembly an
nd assure po
ositive mati ng of the threads beforre tighteningg.
Assemblyy sequence is
i as follows:
1. Open
n the hydrau
ulic return vaalve on the pump
p
to alloow hydraulic fluid to be p
pushed backk
from the puller to
ool into the pump reservoir. (This iss automatic o
on the air‐op
perated
hydraaulic pump)
2. Threaad the reten
ntion screws into the adjacent studs on either side of the stu
ud to be
tensioned until hand tight.
3. Place
e the spanne
er ring on the
e nut.
4. Insert the puller screw
s
releasse tape per Riverhawk
R
m
manual IM‐336.
5. Insert the puller screw
s
into the tapered thread
t
of thee stud and h
hand tighten
n. Be sure no
ot to
crosss‐thread the puller screw
w.
6. Usingg an Allen wrrench, tighte
en the pullerr screw and then back o
off the pullerr screw 1/2 a
turn. Retighten the puller scrrew by hand
d until it is fuully inserted.. DO NOT BA
ACK OFF THEE
PULLER SCREW.
7. Place
e the foot ovver the puller screw and orientate it into position.
9. Thread the tensioner onto th
he puller scrrew until it stops. Pleasee note that the internal sstop
inside
e the tension
ner will causse a gap in between
b
the foot and tensioner. Thee gap should
d be
1/16””[1.6mm] to
o 3/16”[4.8m
mm]. DO NOTT ATTEMPT TO TIGHTEN
N THE TENSIIONER AGAIINST
THE FOOT.
F
10. Place
e the orange guard over the tensione
er and posit ion the pockketed slots into the
reten
ntion screws.
11. Tighten the knurled interlockk fitting by hand until it ffirmly pressees against th
he tensionerr.
There
e should be no gap betw
ween the ten
nsioner the i nterlock fitting.
12. The retention
r
scrrews must be inside the guard’s poccketed slots.
13. Activate the custom connecttor from the rear of guarrd by pushin
ng on the cen
nter with yo
our
thum
mb and pullin
ng the tabs with
w your forre finger andd middle fingger. Push thee assembly
forwaard until it lo
ocks into the
e tensioner. Release finggers from thee tabs and then removee
thum
mb, Ensure co
onnection is firmly engaged or else tthe tensioneer will not bee connected
d to
the pump.
p

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Pull tabs
with finggers

Push
h center
with
h thumb
Pull tabs
with fingers

Pictu
ure 8C ‐ Activvation of thee safety interlock
14. In
nstall the backside guard
d by attachin
ng it to the f lange face. IIt should be centered ovver
th
he stud to be
e tensioned and lightly threaded
t
intto backside o
of the adjaceent studs.
15. Connect the hydraulic
h
pu
ump to the te
ensioner. Thhe tensionerr should now
w be complettely
asssembled an
nd ready for use.
8.3 Bleed
ding Hydraulic System
Bleeding of the hydraaulic system
m is not necessary with thhis tensioneer design.
9.0 Stud Tensioning
The studs will be tensioned in tw
wo steps, at 50%
5 pressurre and at finaal pressure. Follow the
tensionin
ng sequence
e for each flaange joint as defined on the record ssheets found
d at the end of
this manual.
9.1 Tensiioning at 50% pressure
After the
e tensioner iss properly in
nstalled applly hydraulic pressure to the tool. Briing the presssure
to the 50
0% level in acccordance with
w the follo
owing table.

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WARNING
W
The safetty cage musst be in place
e at all times. Keep hands out of deesignated arreas at all tim
mes
when the
e tensioner is pressurize
ed otherwisse personal iinjury can occcur.
CAUTION
C
hreading the
e puller scre
ew into the stud,
s
carefu lly check thee cleanliness of both the
Before th
stud's an
nd the pullerr screw's con
nical threads. Apply a liight coat of clean turbin
ne oil or a sp
pray
lubricantt to the pulle
er screw. Th
his procedurre will ease aassembly an
nd assure po
ositive matin
ng of
the threa
ads before tightening.
t
Do
D not use “Never
“
Seizee” on the con
nical thread
ds.
CAUTION
C
m
prressure markked on the ttensioner. Exxcessive preessure can
Do not exceed the maximum
damage the stud and
d puller scre
ew.
CAUTION
C
Do not tiighten the nut
n while the
e tool is com
ming up to p ressure; wait until presssure is achieeved
before atttempting to
o tighten the nut with the
t spanner ring. If the ttool is not p
properly
installed, the tool co
ould jump offf the stud while
w
comingg up to presssure.
Flangge Position

Stu
ud Size

50% Preessure

50%
% Stretch

D602 Stteam Turbin
ne
HP
PIP to LP

2‐3/4"
[71
1 mm]

115000 psi
[800 bbar]

Do no
ot measure
Do not use

Firmly tigghten the cyylindrical nutts with appro
oximately 200 ft∙lbs [27 N
N∙m] of torqu
ue using thee pin
wrench and
a spanner ring. Turn the nut until it bottoms oon the flangee.
9.2 Remo
oving the Te
ensioner from an Installed Stud
The tensioner removval is accomp
plished by th
he follows stteps:
h
pre
essure by eitther releasinng the hand sswitch on th
he AP‐0532
1. Release the hydraulic
b opening the valve on the MP‐01330 Manual Pump Kit and
d leave the valve
Pump Kit or by
open.
b
guaard.
2. Remove the backside
U
the knurled inte
erlock fittingg at the end oof the guard
d and removve the guard from
3. Unscrew
th
he tensionerr.
4. Unscrew
U
the tensioner frrom puller sccrew.
5. Remove foot from around the puller screw.

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6. Unscrew
U
the puller screw
w using an Alllen wrench.. Tapping thee Allen wren
nch with a
hammer or th
he use of a 3‐4’
3 breaker bar may be necessary to
o loosen thee puller screw
w.
Do
D not use an
n impact wre
ench as this can damagee the puller sscrew.
7. Remove the spanner
s
ringg from the nu
ut.
U
the retention sccrews using an
a Allen wreench. It may be necessary to tap thee
8. Unscrew
Allen
A
wrench with a hammer or use a 3‐4’ breakeer bar to loo
osen the reteention screw
ws.
Do
D not use an
n impact wre
ench as this can damagee the retentiion screws.
9. Move
M
the too
ol to the nexxt bolt hole following thee tensioning pattern from the stretcched
re
ecord sheetss at the end of this manu
ual.
9.3 Tensiioning at Fin
nal Pressure
Repeat th
he pulling an
nd tightening procedure
e stated abovve at full preessure. Afterr all of the sttuds
have bee
en tensioned
d, measure the final stud
d length. Thee final pressure and requ
uired stretch
h
values arre listed in th
he followingg table.
WARNING
W
The safetty cage musst be in place
e at all times. Keep hands out of deesignated arreas at all tim
mes
when the
e tensioner is pressurize
ed otherwisse personal iinjury can occcur.
CAUTION
C
Before th
hreading the
e puller scre
ew into the stud,
s
carefu lly check thee cleanliness of both the
stud's an
nd the pullerr screw's con
nical threads. Apply a liight coat of clean turbin
ne oil or a sp
pray
lubricantt to the pulle
er screw. Th
his procedurre will ease aassembly an
nd assure po
ositive matin
ng of
the threa
ads before tightening.
t
Do
D not use “Never
“
Seizee” on the con
nical thread
ds.
CAUTION
C
Do not exceed the maximum
m
prressure markked on the ttensioner. Exxcessive preessure can
damage the stud and
d puller scre
ew.
CAUTION
C
n while the
e tool is com
ming up to p ressure; wait until presssure is achieeved
Do not tiighten the nut
before atttempting to
o tighten the nut with the
t spanner ring. If the ttool is not p
properly
installed, the tool co
ould jump offf the stud while
w
comingg up to presssure.
Flangge Position

Stu
ud Size

Final Preessure

Finaal Stretch

D602 Stteam Turbin
ne
HP
PIP to LP

2‐3/4"
[71
1 mm]

230000 psi
[1585 bar]

0.019
9" ‐ 0.022"
[0.48 mm
m ‐ 0.56 mm
m]

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Firmly tigghten the cyylindrical nutts with appro
oximately 200 ft∙lbs [27 N
N∙m] of torqu
ue using thee pin
wrench and
a spanner ring. Turn the nut until it bottoms oon the flangee.
Failure to
o achieve the correct fin
nal stretch vaalues will ressult in an inccorrectly ten
nsioned stud
d.
ues can be corrected
c
by uninstallingg some or alll of the seleccted studs. R
Re‐
Incorrectt stretch valu
measure the initial le
ength of the studs and re
epeat the innstallation in
nstructions sttuds. Excesssive
stretch variations can
n also be corrected by th
he same meethod.
Have finaal stretch values approve
ed by the su
upervisor ressponsible forr the installaation.

10.0 Thre
ead Locking and Windagge Plug Instaallation
10.1 Thre
ead Locking

(2)
( Locking
Set
S Screws

(2
2) Spanner
R
Ring Holes

Picture
P
10A ‐ Riverhawkk Locknut
Mechanical lock nutss have two set
s screws lo
ocated in thee top face. Before thread
ding the nut
onto the stud, check to be certaiin the set screws are freee to turn. Once the nut is seated torque
e values speccified in the following taable. When sseated and ttorqued to th
he
the set sccrews to the
values sp
pecified, the load created by the set screw displaaces the thrread of the n
nut in the areea of
the web thereby creaating the desired lockingg action.
Flange
e Position

Stud Size

Set Screw Size

TTorque

D602 Ste
eam Turbine
e
HPIP to LP

2‐3//4"
[71 mm]
m

1/4"‐28 U
UN

70 in∙llbs ‐ 80 in∙lb
bs
[7.9 N∙∙m – 9.0 N∙m
m]

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10.2 Win
ndage Plug In
nstallation
Refer to the hardwarre assembly drawing (HFF‐xxxx) listedd in Section 2.0 of this m
manual.

Nut

Windagge
Plug

Lockin
ng Set
Sccrews

Stud

HPIP Ro
otor
Flange

Figu
ure 10B – Windage Plug Installation
quired:
Tools Req
Torqu
ue Wrench
1/2" Allen Driver for windage
e plug
1/8” Allen Driverr for set screws
1. Be sure intern
nal threads in
i the stud are
a clean andd free from oil.
nsert the win
ndage plug full
f and tightten to 200‐2250 in‐lbs (222.6‐28.2 Nm) torque.
2. In
3. Tighten the set screws to
o 80‐90 in‐lbss (3‐4 Nm) toorque.
4. Caution – the
e plug must rest
r a minim
mum of .12” ((3mm) below
w the face o
of the stud.

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11.0 Stud
d and Nut Re
emoval
The tensioner used in this application can be
e identified bby its ORANG
GE safety gu
uard. If the
tensioner’s safety gu
uard is YELLO
OW, a differe
ent set of insstructions arre required. Consult the
wk factory fo
or assistance.
Riverhaw
11.1 Han
ndling of the
e Tensioner
The tensioner used in this application is desiigned for no special liftin
ng instructio
ons. Do not d
drop
any part of the tensio
oner on the operator orr other nearbby personneel.
d and Nut Re
emoval
11.2 Stud
WARNING
W
The safetty cage musst be in place
e at all times. Keep hands out of deesignated arreas at all tim
mes
when the
e tensioner is pressurize
ed otherwisse personal iinjury can occcur.
CAUTION
C
Before th
hreading the
e puller scre
ew into the stud,
s
carefu lly check thee cleanliness of both the
stud's an
nd the pullerr screw's con
nical threads. Apply a liight coat of clean turbin
ne oil or a sp
pray
lubricantt to the pulle
er screw. Th
his procedurre will ease aassembly an
nd assure po
ositive matin
ng of
the threa
ads before tightening.
t
Do
D not use “Never
“
Seizee” on the con
nical thread
ds.
CAUTION
C
Do not exceed the maximum
m
prressure markked on the ttensioner. Exxcessive preessure can
damage the stud and
d puller scre
ew.
CAUTION
C
Do not tiighten the nut
n while the
e tool is com
ming up to p ressure; wait until presssure is achieeved
before atttempting to
o tighten the nut with the
t spanner ring. If the ttool is not p
properly
installed, the tool co
ould jump offf the stud while
w
comingg up to presssure.
Refer to the hardwarre assembly drawing (HFF‐xxxx) listedd in Section 2.0 of this m
manual and tthe
tensioner assembly drawing
d
(HT‐‐xxxx) listed in Section 44.5 of this maanual to dettermine how
w the
n the load co
oupling for itts correct op
peration.
tensioner must be asssembled on
Section 8.0
8 contains diagrams off the tension
ner equipmeent.
Note: Be
efore threading the pulle
er screw into the stud, ccarefully cheeck the cleaanliness of b
both
the stud''s and the pu
uller screw'ss conical thrreads. Applyy a light coatt of clean tu
urbine oil or a
spray lub
bricant to th
he puller scre
ew. Do not use
u “Never Seize” on th
he conical th
hreads. This
procedurre will ease assembly an
nd assure po
ositive mati ng of the threads beforre tighteningg.
215 Clintton Road
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Disassem
mbly sequencce is as follows:
1. Usingg a wire brussh (GT‐4253)) and shop air,
a clean thee internal tap
pered thread
d of the stud
d to
remo
ove any debrris/deposits which may have
h
accumuulated durin
ng service as described in
n
sectio
on 5.2.2. Do not continu
ue until ALL debris
d
is rem
moved from the threads.
WARNING
W
e a stud with
h damaged cconical threaads.
Do not use a hydraulic tensioner to remove
n the two loccking set scr ews but do not remove from the nu
ut.
2. With an Allen‐wrrench loosen

Piccture 11A ‐ Loosening
L
off a nut's set sscrews
nect the hydrraulic hose from
f
the hyd
draulic pumpp to the tenssioner.
3. Conn
4. Open
n the hydrau
ulic return vaalve on the pump
p
to alloow hydraulic fluid to be p
pushed backk
from the puller to
ool into the pump reservoir. (This iss automatic o
on the air‐op
perated
hydraaulic pump)
5. Threaad the reten
ntion screws into the adjacent studs on either side of the stu
ud to be
tensioned until hand tight.
6. Place
e the spanne
er ring on the
e nut.
7. Insert the puller screw
s
releasse tape per Riverhawk
R
m
manual IM‐336.
8. Insert the puller screw
s
into the tapered thread
t
of thee stud and h
hand tighten
n. Be sure no
ot to
crosss‐thread the puller screw
w.
9. Usingg an Allen wrrench, tighte
en the pullerr screw and then back o
off the pullerr screw 1/2 a
turn. Retighten the puller scrrew by hand
d until it is fuully inserted.. DO NOT BA
ACK OFF THEE
PULLER SCREW.

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10. Place
e the foot ovver the puller screw and orientate it into position.
11. Threaad the tensio
oner onto th
he puller scre
ew until it sttops. Please note that th
he internal sstop
inside
e the tension
ner will causse a gap in between
b
the foot and tensioner. Thee gap should
d be
1/16””[1.6mm] to
o 3/16”[4.8m
mm]. DO NOTT ATTEMPT TO TIGHTEN
N THE TENSIIONER AGAIINST
THE FOOT.
F
12. Place
e the orange guard over the tensione
er and posit ion the pockketed slots into the
reten
ntion screws.
13. Tighten the knurled interlockk fitting by hand until it ffirmly pressees against th
he tensionerr.
There
e should be no gap betw
ween the ten
nsioner the i nterlock fitting.
14. The retention
r
scrrews must be inside the guard’s poccketed slots.
15. Activate the custom connecttor from the rear of guarrd by pushin
ng on the cen
nter with yo
our
mb and pullin
ng the tabs with
w your forre finger andd middle fingger. Push thee assembly
thum
forwaard until it lo
ocks into the
e tensioner. Release finggers from thee tabs and then removee
thum
mb, Ensure co
onnection is firmly engaged or else tthe tensioneer will not bee connected
d to
the pump.
p

Pull tabs
with finggers

Push
h center
with
h thumb
Pull tabs
with fingers

Picturre 11B ‐ Actiivation of th e safety inteerlock
hould be centered over tthe
16. Install the backside guard by attaching it to the flangge face. It sh
t be tensioned and ligh
htly threaded
d into backsside of the ad
djacent stud
ds.
stud to
17. Conn
nect the hydrraulic pump to the tensioner and appply the appropriate hyd
draulic presssure
per th
his table.

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Flange
F
Positiion

Stud Sizze

Rem
moval Presssure

D602 Ste
eam Turbine HPIP to LP

2‐3/4""
[71 mm
m]

23000 psi
[1585 bar]

18. Turn the spannerr ring with th
he pin wrencch. Loosen aand turn the nut approxiimately 3/4 of a
turn.
19. Releaase the hydraulic pressure.
emoving the
e Tensioner from a Stud
d
11.3.1 Re
plished by th
he follows stteps:
The tensioner removval is accomp
1. Release the hydraulic
h
pre
essure by eitther releasinng the hand sswitch on th
he AP‐0532
Pump Kit or by
b opening the valve on the MP‐01330 Manual Pump Kit and
d leave the valve
open.
2. Remove the backside
b
guaard.
3. Unscrew
U
the knurled inte
erlock fittingg at the end oof the guard
d and removve the guard from
th
he tensionerr.
4. Unscrew
U
the tensioner frrom puller sccrew.
5. Remove foot from around the puller screw.
6. Unscrew
U
the puller screw
w using an Alllen wrench.. Tapping thee Allen wren
nch with a
hammer or th
he use of a 3‐4’
3 breaker bar may be necessary to
o loosen thee puller screw
w.
Do
D not use an
n impact wre
ench as this can damagee the puller sscrew.
7. Remove the spanner
s
ringg from the nu
ut.
8. In
n the case off the generator side of th
he load couppling flange,, unscrew th
he retention
sccrews using an Allen wre
ench. It mayy be necessa ry to tap thee Allen wren
nch with a
hammer or use a 3‐4’ bre
eaker bar to loosen the rretention screws. Do no
ot use an imp
pact
wrench
w
as thiis can damagge the reten
ntion screws.
9. Move
M
the too
ol to the nexxt bolt hole following thee tensioning pattern from the stretcched
re
ecord sheetss at the end of this manu
ual.

215 Clintton Road
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12.0 Storrage Instructtions
Follow th
hese directio
ons to prope
erly store you
ur hydraulic tensioner and hydraulicc pump kit fo
or
long term
m storage an
nd shipment.
erved, contaact the Riverrhawk Comppany to schedule a maintenance
If any damage is obse
inspectio
on.
12.1 Hyd
draulic Pump
p Kit Storage
e
Refer to the Hydraulic Pump Kit Instruction Manual,
M
IM‐‐293 (GE VEN
NDOC 373A4
4058). The laatest
m be obtaained by con
ntacting Rive
erhawk Comppany or thru
u www.riverhawk.com.
revision may
12.2 Hyd
draulic Tensioner Storagge
mage
Check the tensioner for any dam
s
and ch
heck for any debris and dents.
1. Clean puller screw
s
be cle
ean and freee to rotate.
2. Knurled interrlock fitting should
nspect the te
ensioner guaard for any signs
s
of dam age. Bent gu
uards must b
be replaced..
3. In
If any damage is obse
erved, contaact the Riverrhawk Comppany to schedule a maintenance
inspectio
on.
Place the
e protective plastic cap on
o the guard
d’s knurled innterlock fittiing.
Coat the hydraulic te
ensioner with a light coaat of oil and pplace the tensioner into
o the original
shipping container.
12.3 Storre shipping container
c
he hydraulic pump and hydraulic
h
ten
nsioner into the originall shipping co
ontainers usiing
Secure th
the supplied wood braces.
pping contain
ner and store under sheelter and pro
otected from
m moisture, ssand,
Seal the original ship
and grit.
quently Aske
ed Question
ns
13.0 Freq
This section containss some frequ
uently asked
d questions aand problem
ms. If the step
ps listed herre do
not solve
e your proble
em, contact the Riverhawk Companny thru our w
website, emaail, or phonee call.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
Tel: +1 31
Fax: +1 315 768 4941
Email: inffo@riverhawk.com
m

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Q:

Can I rent a hydraulic ten
nsioner kit?

A:

Ye
es, Riverhaw
wk has rental tensioner kits
k availablee for most off our hydrau
ulic tensioneers.

Q:

A tensioner has
h pulled itsself out of th
he stud's connical threadss. Can I contiinue using a
ensioner on this stud?
te

A:

No. Both the tensioner an
nd the stud may have beeen damageed and must be removed
d
frrom the worrk area. If the
e stud is tensioned, a Nuut Buster rep
pair kit, from
m Riverhawkk,
must
m be used
d to remove the damage
ed stud by drrilling out the nut. Leaving a damageed
sttud in place will lead to a safety hazaard on futurre outages.
Riverhawk can supply a re
eplacement stud and nuut based on the initial w
weight
ce
ertification supplied
s
with the hardw
ware set (seee section 4.2)). The damaged tensioner
sh
hould also be returned to
t Riverhawkk for inspecttion and repair.
If a stud mustt be left in place, paint the damagedd stud with a generous aamount of
ndelible, brigght‐colored paint.
p
Notifyy the approppriate GE Saffety and Servvice personn
nel.
in
Note the locaation of the damaged
d
stu
ud in the serrvices notes for the macchine.

Q:

Th
he hydraulicc tensioner has
h been takken up to its final pressure. The finall stretch lenggth is
sh
hort of the final stretch target.
t
What is the nextt step?

A:

Do not increaase the hydraaulic pressure. Check if tthe hydrauliic pump is seet to the righ
ht
pressure. Insttall the tensiioner and re
e‐pressurize tthe tensioneer to the finaal pressure tthen
re
echeck the stretch meassurement. If the stretch value is still short, remo
ove the stud
frrom the hole
e and re‐meaasure the stu
ud's initial leength then try to install the stud agaain.

Q:

he hydraulicc tensioner has
h been takken up to its final pressure. The finall stretch lenggth is
Th
laarger than th
he final strettch target. What
W
is the nnext step?

A:

s
from the bolt hole. Check if thee hydraulic p
pump is set tto the right
Remove the stud
e stud's initial length theen try to insttall the stud again.
pressure. Re‐measure the

215 Clintton Road
New Hartford, NY 13413
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Q:

Th
he tensionerr is at its finaal pressure, but the nut cannot be lo
oosened.

A:

If the nuts cannot be loossened at the
e final pressuure, continuaally increasin
ng the presssure
will
w not help and
a can be dangerous
d
and in some ccases make it harder to remove thee nut.
Check the nutt to see if itss set screws have been loosened. Ch
heck for and remove anyy
orrosion aro
ound the nutt's threads. Apply
A
penetrrating oil between the stud and the nut.
co

Q:

How do I cleaan the conicaal threads on
n a stud?

A:

Th
he conical th
hreads are best
b cleaned using a spir al wound brrass brush in
n a drill as
described in section
s
5.2.2
2

Q:

During the iniitial steps off removing a tensioned sstud, the sticck‐out length is found to
o be
wrong.
w

A:

Do not proceed. Contact Riverhawk for
f assistancce. With the wrong stick‐out length, the
hyydraulic tensioner has a limited stro
oke and mayy not work properly and can be
daamaged.

Q:

he hydraulicc pump appe
ears to be leaaking.
Th

A:

Check the hosse connectio
on to the hyd
draulic pum p. If the 1/44" high presssure fitting iss not
asssembled co
orrectly as sh
hown in secttion 7.2, it m
may look like the pump iss leaking. If tthe
problem conttinues, it maay be necessary to open the pump kit. Contact R
Riverhawk fo
or
gu
uidance.

Q:

he hydraulicc hose has a collar on it that
t
can't bee moved by h
hand
Th

A:

Th
he hydraulicc fitting is shown in sectiion 7.2. The collar is som
metimes held
d in place wiith a
th
hread locking compound
d. This preve
ents the collaar from movving too easiily. It may bee
necessary to adjust this collar
c
with a set of vise‐ggrip pliers. Be careful to not strip thee
th
hreads off th
he tube or ho
ose end.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
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m

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14.0 Revvision Historyy
Revisio
on
Lette
er

Efffective Date
e

‐

Oct
O 20, 2017

Descriptio n
Releassed

215 Clintton Road
New Hartford, NY 13413
15 768 4855
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Appendixx A1

EC Declaration off Conformity
Manufaccturer:
Address:

Riverhawkk Company
215 Clinto
on Road
New Hartfford NY, 134
413, USA

nsioning tooll described iin this manu
ual are used for installingg and
The hydrraulic pump and bolt ten
applying tension to laarge bolts th
hat are specifically desiggned by Riveerhawk Comp
pany to be
tensioned hydraulicaally.
All appliccable section
ns of Europe
ean Directive
e 2006/42/EC
C for machin
nery have beeen applied and
fulfilled in the design
n and manuffacture of the hydraulic pump and b
bolt tensioning tool
described
d in this man
nual. Reference also ISO
O 12100:20100, ISO 4413, and ISO 441
14.
Furtherm
more, this eq
quipment has been manufactured unnder the Rivverhawk quaality system p
per
EN ISO 90
001:2008
Consult the
t Declaration of Confo
ormance inclluded with tthe shipment of this equ
uipment thatt
identifiess the authorized Riverhaawk representative, app licable seriaal numbers, aand approprriate
signature
e.

215 Clintton Road
New Hartford, NY 13413
15 768 4855
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Appendixx B1
STRETCH
H RECORD SH
HEET FOR
THE HPIP
P TO LP
TURBINEE NUMBER:
DATE:
TECHNIC
CIAN:
SUPERVISSOR:

HOLE NUMBER

STARTING
G
MEASUREMEENT

FINAL MEASSUREMENT

FINAL GAUGE READIN
NG

1
9
5
13
15
7
3
11
8
16
12
4
10
2
6
14

215 Clintton Road
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