ML19319D178
| ML19319D178 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 05/15/1978 |
| From: | Beatty G, Mckee P FLORIDA POWER CORP. |
| To: | |
| References | |
| FP-402, NUDOCS 8003130744 | |
| Download: ML19319D178 (35) | |
Text
",
R2v. 6 4/20/78 s
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Document Section N FORM ATION ON L S8 C. R. Nuclear REFUELING PROCEDURE j
FP-402 FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 REACTOR VESSEL CLOSURE HEAD STUD REMOVAL MiD REPLACDfEff
"~T r.. 5 ag'02, L.,
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REVIEWED BY:
Plant Review Co=nittee ti if WS h!D Date
/
/
Meeting No.
h -'-/h APPROVED BY:
Nuclear Plant Manager AY l
8008130 2 %
P o-e /amW I
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1.0 PURPOSE 1.1 To set forth the steps required for removal, replacement, and storage of reactor vessel closure head studs.
1.2 To set forth the inspection requirements for studs upon removal and reinstallation.
1.3 To set forth other operations requiring stud handling.
1.4 To provide a record of elongation of tensioned studs.
1.5 To set forth steps for stud hole seal plug removal and replacement.
1.6 To set forth steps for use of the stud impact wrench, if required.
Procedure Section Stud Detensioning 8.0 Stud Removal 9.0 Stud Installation 10.0 Stud Hole Seal Plug Installation 11.0 Stud Hole Seal Plug Removal 12.0 Stud Loading 13.0 Stud Impact Wrench Operation 14.0 Page 1 FP-402 Date 3/7/78 Rev. 4
5 3,
2.0 DESCRIPTION
2.1 The reactor vessel consists of a domed closure head, shell, and domed bottom head. The closure head bolts to a ring flange on the upper shell with sixty five-foot studs, each six and a half inches in diameter.
The bottom head is welded to the shell.
Each item in the stud assembly (sixty assemblies) weighs as follows:
Stud 509 lbs.
Nut 83 lbs.
SphericakWasherSet 38 lbs.
- Measuring Rods 10 lbs.
2.2 Each stud has a one Lach diameter center hole through the longi-tudinal axis.
This hole is used for the stud elongation measuring rod.
The hole will also acco=modate an electrical stud heater.
The bottom insert is used to close the bottom of the stud and seat the stud elongation measuring rod.
Each stud has a threaded length sufficient to accommodate a hydraulic stud tensioner.
2.3 Studs and nuts are die-stamped with the stud nu=ber.
The spher-ical washers are die-sta= ped in =atched sets.
2.4 The head is guided into position by two alignment studs in holes "15" and "45" in the reactor vessel flange.
2.5 Studs are removed and installed using pneumatic-powered tools.
An impact wrench of 4,000 foot-pounds torque is available in the event a stud cannot be removed with normal stud handling tools.
2.6 Hydraulically-operated stud tensioners are used to load and unload the closure head studs.
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Page 2 FP-402 Date 2/14/75
9 2.7 Studs are numbered clockwise (looking down at the closure head) from~"1" to "60" with an arrow welded to the closure head points to the space between studs "1" and "60".
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.Page 3 FP-402 Date 3/7/78 j
Rev. 4
3.0 REFERENCES
3.1 E & W Reactor Vessel Instruction Manual 3.2 Instruction Manual for Diamond Stud Tensioner, IM-502698-N 3.3 Stud Impact _ Wrench Instruction Manual 3.4 Stud Handling Tool Instruction Manual 3.5 GAI Dwg. L-001-032, Plan Above Reactor Building Operating Floor-Elevation 160'0" 3.6 FP-401, Reactor Vessel Closure Head Removal and Replacement 3.7 B & W Pressurized Water Reactor Technology, Volu=e 3, Sectica 12 (Contains useful sketches and other background information.)
Page 4 FP-402 Date 2/14/75
.i 0 ENCLOSURES r
Closure Stud Unloading Data Sheets - Operation Only Inclosure 2 Stud Locations for Replace:nent Closure Stud Tensioning Data Sheets Closure Stud Elongation Data Sheets
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t Page 5 FP-402 Date 3/10/78 Rev. 5
5.0 LIMITS AND PRECAUTIONS 5.1 Studs may be detensioned and tensioned only when the closure head and flange metal temperatures reach or exceed 60*F.
- Also, whenever studs are loaded (tensioned), the closure head and vessel flange temperatures must be maintained at 60*F or higher at all times.
5.2 If a stud is incorrectly unloaded or omitted from the unloading sequen,tial pass, it will be severely overloaded. Subsequent application of the tensioner load can damage the stud,. vessel, and flange threads.
5.3 Do not tension a stud unless the engaging nut is threaded into the stud in accordance with the Diamond Stud Tensioner Instruc-tion Manual (IM-502698-N).
5.4 Do not continue operating a stud tensioner which is leaking excessive oil.
Immediately wipe up any spilled oil.
5.5 operate stud tensioners diametrically opposite each other.
5.6 Do not thread a stud in or out of the stud hole unless it is properly susp ded from the stud handling tool (for threading in) and the lubricant has been properly applied.
5.7 Protect elongation rods fren dirt. Assure that elongation rods are at temperature of the surrounding metal before taking mea-2 surements.
(Two hours are usually satisfactory for obtaining equal temperatures.)
5.8 Mark studs and nuts to check for movement during tensioning or detensioning.
5.9 Do not use wire brushes on stud threads.
' Page 6 FP-402 Date 3/7/78 Rev. 4 l
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5.10 Do not use a hydraulic pump pressure greater than 20,000 psi
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on the tensioner.
5.11 No welding, burning, chipping, grinding, are strikes, inadvertent impacts, notches, grooves, or stress concentrations shall be per-formed on the reactor head equipment.
5.12 Prevent contamination of the reactor vessel internals from any source (rags, debris, part pieces, tools, etc.).
Secure tools with lanyards for use where they could drop into the reactor vessel.
Arrange lights so that breakage cannot contaminate.
Weld, tape, or otherwise secure equipment parts to prevent accidental disasse=bly into the vessel.
5.13 Do not overtension studs.
If a stud elongation of 0.080 in. is exceeded, call for an evaluation by the B & k' Service Represen-tative.
5.14 Acetone is highly volatile.
It is flac=able and toxic in concen-trations over 1,000 ppm.
Provide ample ventilation for any space in which acetone is used.
Forbid open flames, electric arcs, or sparks in spaces where acetone is being used.
Post " DANGER-NO SMOKING" siga in these spaces. Acetone can cause serious effects if ingested (drank or eaten), inhaled, or absorbed through the skin.
Treat acetone with the same care as gasoline with regard to its flammability and explosive hazards.
Acetone vapors are lighter than air.
5.15 When taking the initial and final elongation readings of Enclo-sures 4 and 6, two independent sets of readings will be taken on the forms provided.
The readings will be taken at the same time 180' apart by two individdal mechanics so the readings of one mechanic will not affect.the other.
Page 7 FP-402 Date 3/7/78 Rev. 4
6.0 EQUIPMENT AND PERSONNEL REQUIREMENTS 6.1 Check out the special tools and parts listed below:
g Nomenclature Drawing or Part No.
Quantity Measuring Rod MK-85 60 Depth Cage, Starrett MK-41 2
Castellated Nut Wrench 101988D-2 2
for 6-1/2" Stud Part No. 903 Seal Plug Handling Tool MK-127 2
Guide Stud Assembly MK-75 2
Closure
- Studs MK-25 5
Bottom Insert MK-72 5
Measuring Rod MK-85 5
Closure Nuts MK-26 5
Convex Washer MK-14 5
Concave Washer MK-27 5
Stud Tensioner System MK-150 1
(includes two tensioners, one power unit, handling slings, two elongation gauges, and related equipment)
Stud Hole Seal Plug MK-74 58 0-Ring Gasket MK-69 58 1
Stud Hole Chase Tra1 17655 1
Dwg. THD-22098 l
Contact Pyrometer 1
i 6.2 Check out the reactor building services as listed in Section 6.1 of FP-401, Reactor Vessel Closure Head Re= oval and Replace-ment.
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6.3 Check out the following equipment (after entry is author 1.:ed in the reactor building):
Page'8 FP-402 Date 2/14/75 x
a
c.
Stud Support Spacers (58) b.
Head Storage Stand-
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I c.
Stud Storage Stand 4.
Stud and Nut Handling Equipment (two sets) e.
Stud Impact Wrench and Adapter (stored as shown on GAI Dwg. No. L-001-032, Plan Above Reactor Buil>'ag Operating Floor-Elevation 160'0")
6.4 Molykote-G and LUBRA-SEAL Lubricants (manufactured by Dow Corning Corporation) 6.5 Chloride-free detergent such as Turco's DECON 4501-A or DECON 4512-A.
6.6 One copy of this procedure with pencil or pen.
6.7 Nylon brushes and acetone for cleaning the studs.
6.8 Personnel needed includes one qualified polar crane operator and six mechanics, two of whom are qualified to rig the studs, stud handling equipment, and stud tensioners for hoisting.
i 6.9 Service power (110 volts AC) at the closure head and the head storage stand for working lights.
6.10 Neolube Lubricant 6.11 Pressure-Sensitive Tape I
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Page 9 FP-402 Date 2/14/75 umr !
7.0 REQUIRED INITIAL CONDITIONS AND PLANT STATUS 7.1 Plant is in the condition arrived at af ter meeting all require-7 ments of FP-401, Reactor Vessel Closure dead Removal and. Replace-ment, up to and including Step 8.17.
7.2 Reactor vessel metal temperatures'above 60*F.
RC temperature l
below 120*F and RC system depressurized to O psi.
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,1 Page 10
.FP-402 Date 3/7/78 Rev. 4 l
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PROCEDURE
.f 8.0 STUD DETENSIONING Initials / Tine /Date 8.1 A Radiation Work Permit (RWP) has been issued.
8.2 The limits and precautions of Section 5.0 have been noted.
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8.3 Equipment and personnel are available as listed in Section 6.0.
8.4 The ' initial conditions of Section 7.0 have been met.,
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8.5 Clean the reactor vessel flange of all foreign matter. Clean accessible areas of the studs, nuts, washers, and stud center holes.
Clean thread areas with Spotcheck cleaner and nylon brushes. Do not use wire brushes on threads.
Relubricate exposed threads of studs with Molylco t e-G.
8.6 Use the polar crane to transfer the two stud tensioners to two of the hoists on the ser-vice structure monorail as directed in i
FP-401, Reactor Vessel Closure Head Removal and Replacement. Prepare the stud tensioners for operation in accordance with the Diamond Stud Tensioner Instruction Manual, IM-502698-N.
Connect the air supply to the tensioners.
Calibrate both tensioner pressure gauges.
1 Page 11 FP-4 fl2 Date 7/16/76 Rev. 2
'8.7 Color code the two stud tensioners so one is
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red and the other is yellow.
Use the red i
tensioner on studs 1-30 only; use the yellow
'tensioner on studs 31-60 only.
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M Page lla FP-402 Date 7/16/76 Rev. 2
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8.8 Deten31 n crude in two pt ssa in tha sequences shown on Enclosure 1.
Note that i requires that the studs be detensioned in pairs, two studs diametrically opposite each other. All 60 studs are deten-sioned (partially) in the first unloading pass. Detensioning is co=pleted with the second unloading pass.
Extre=e (possibly dam-aging) tension will be placed on any stud which is not detensioned in proper sequence.
Begin with Sequence 1 of the first unloading pass, verifying with a contact pyrometer that the reactor vessel and closure head metal temper-atures are above the DTT.
Use the stud hole numbers for sequencing of all stud operations.
Perform Steps 8.8.1 thru 8.8.9 to unload the 60 individual studs in the sequences listed on Enclosure 1 and initial here when complete.
8.8.1 Using the stud tensioner hoists, lower the stud tensioners over the studs (1800 apart) until the pedestals come to rest on the clo-sure head flange.
Insure each tensioner has been centered over the stud.
8.8.2 Thread the stud tensioner on the stud.
Thread the engaging nut on the stud by turning the Page 12 FP-402 Date 3/7/78 Rev. 4
'Vnc'
i engaging nut drive counterclockwise by hand until~
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the engaging nut begins to thread onto the stud.
Note location of the white band on the engaging out relative to the indicator lines on the ped-estal.
Continue turning the engaging nut drive until assured that engaging nut is properly chreaded on the stud.
Remove hand crank and attach pneumatic nut runner and continue turning the, engaging nut drive until the upper white band on the engaging nut reaches the original location *of the lower band (at initial thread contact)
NOTE:
Engagement must be made by this visual check.
Do not allow the engazing nut drive to be turned to a hard stop.
8.8.3 Increase the hydraulic pu=p pressure to the reading shown in column four of Enclosure 1 for the pass / sequence.
This pressure may be exceeded if necessary, however, do not exceed 20,000 psi.
8.8.4 Turn the transmission crankhandles on both stud tensioners counterclockwise by the nun-0 ber of degrees (+ 5 ) shown in colu=n five '
of Enclosure 1 for the pass / sequence.
Initial in column five i==ediately upon co=pletion of this step.
Page 13 FP-402 Date 3/7/78 Rev. 4
8.8.5 Release the censioner hydraulic pressure.
Remove the engaging nut from the stud by-rotating the engaging nut drive using the penumatic nut runner counterclockwise until the nut is clear of the threaded por-tion of the stud.
8.8.6 Raise the tensioner clear using the stud tensioner hoists.
8.8.7 Repeat Sections 8.8.1 through 8.8.6 for the first unloading pass of each pair of studs in Sequences 2-30 as shown on Enclosure 1.
This completes the first unloading pass.
NOTE:
If difficulty in unseating a stud nut occurs in the first unloading pass, the following procedure is required:
Page 13a FP-402 Date 7/16/76 Rev. 2
a.
Recension an adjoining stud which has been relaxed to 15,000 psi and seat the stud nut.
b.
Tension the problem stud to a pressure sufficient to unseat the nut (not to exceed 20,000) and back off the stud nut 1-1/4 counterclockwise crankhandle turns.
c.
Recension the stud of (a) above to a pressure sufficient to unseat the nut (not to exceed 20,000 psi) and back off the stud nut one counterclockwise crankhandle t'rn.
u d.
Resume normal unloading sequence.
8.8.8 Repeat Steps 8.8.1 thru 8.8.6 for the second unloading pass of each pair of studs in Sequences 1-30 as shown on Enclosure 1.
i i.
At the beginning of the second unloading pass, again verify with a contact pyrometer that the reactor vessel and closure head netal temperatures are greater than the DTT.
This I
completes the second unloading pass.
NOTE: If difficulty in unseating a stud nut occurs in the second unloading gass, the following procedure is required:
l Recension an adjoining stud which has undergone a.
the second unloading pass to 10,000 psi and seat i
the stud nut.
b.
Tension the problem stud *to a pressure sufficient I
to unseat the nut (not to exceed 20,000 psi) and back off the stud nut six counterclockwise crank-handle turns.
Page 14 FP-402 Date 3/7/78 Rev. 4
< et t
c.
Retension the stud of (a) to a pressure sufficient to unseat the nut (not to exceed 20,000 psi) and back off the stud nut six countercloclorise crank-handle turns.
d d.
Resume normal unloading sequence.
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1 8.8.9 Initial opposite Section 8.8 vhen all steps are completed.
Page 15 FP-402 Date 3/7/78 Rev. 4
4 8.10 Move the stud tensioners to the operating floor, remove the tensioner guide handles, and install the shipping brackets on the tensioner pedestal.
Wipe up any spilled oil.
Recalibrate both s
tensioner pressure gauges.
NOTE:
The stud tensioners may be left hanging in place on the service structure if the following conditions are met:
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1 The head and service structure lifting equipment is l
a.
capable of lifting the extra weight.
b.
The tensioners are located diametrically opposite each other on the service structure and tied securely to prevent swinging prior to reactor vessel head removal or replacement.
i Completed By Date Approved By Date Page 16 FP-402 Date 3/7/78 Rev. 4
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- e 9.0 STUD REMOVAL Initials /Tf.me/Dat e 9.1 Use the polar crane to bring the two stud handling tools into position for suspension from the hoists on the service structure monorail.
9.2 Attach a stud handling adapter to the tops of 4
sitda "15" and "45".
Line up the holes in the adapter and stud and insert the one inch ball-lock pin through to lock.
9.3
. Check that the stud handling tool hook is in the lowered position. Move the stud hoists with the stud handling tools Lato position over studs "15" and "45".
Lower the tools until the stud transfer yokes are at the same level as the eye of the stud handling adapter.
Line up the holes in the eye and the yoke and insert the transfer yoke ball-lock pin through to lock.
Check that the stud hook retaining pin is also in placc.
9.4 Using the stud hoist, raise the tool to pre-load the balance springs until the bottom of the guide plate is in the mid position in the indicator slots.
9.5 Move the direction control valve to " Reverse" (up l
position).
Slowly jog the tool counterclockwise i
to take Page 17 FP-402 Date 7/16/76 Rev. 2
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up slack, then hold the on-off valve and drive the stud out of the stud hole.
As the last threads disengage, the balance springs will lift the stud away from the vessel approximately three-fourths of an inch to prevent damage to the threads.
Nuts and washers will lift out with the studs.
9.6 If the stud cannot be turned out of the stud hole using the stud handling tool, refer to Section 14.0 of this procedure.
9.7 Using a service sling attached to the polar crane, attach a hook to the second bail of the transfer yoke on the stud handling adapter.
Raise the tool with the hand hoist until the stud is clear of the closure head flange.
Transfer the load to the service sling until the full weight of the stud is removed from the stud handling tool.
Remove the ball-lock pin from the stud hook and detach the stud handling tool from the yoke.
9.8 Hoist studs "15" and "45" ( with nuts and washers) in this manner to the stud storage rack (shown on GAI Dwg. L-001-032).
Seat the studs in the rubber-lined cups and secure the studs to the rack with the lanyards.
Page 18 FP-402 Date 3/7/78 Rev. 4
9.9 As each stud is transferred to the stud storage rack, remove the stud handling adapter from the stud and attach the adapter to an alignment stud in the stud storage rack.
Release the retaining
-lanyard, hoist the alignment stud out of the rack, and lower the stud to the reactor vessel flange area.
9.10 Apply lubricant (LUBRA-SEAL) to a seal 0-ring and slip the ring' ove,r thq chreads and into the groove
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above the threads. Attach the stud handling tool hook to the transfer yoke and swing the stud directly over hole "15" or "45".
Transfer the load to the stud hoist and detach the polar crane i
hook.
9.11 Lower the alignment stud with the hoist to within one-half to one inch of the first thread.
Manually depress the stud handling tool to bring the threads into contact.
Set control to " Insert" and jog the hand valve to engage the first threads.
Drive stud down until motor load indicates stud has bottomed.
Install the other alignment stud in the same manner.
The hole in the top of the stud should point in a radial direction to facilitate insertion / removal of the stud handling adapter pin without interference with the adjacent i
studs.
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Page 19-FP-402 Date 3/7/78 Rev. 4 s a-
4 9.12 Detach the adapters from the alignment studs and attach the adapters to studs "16" and "46".
9.13 Remove the studs with the stud handling tool as in Steps 9.3, 9.4, and 9.5 of this procedur=.
9.14 Using the hoists, raise the studs high enough to install one stud support spacer between each stud nut and washers. Lower the studs until the load is on the spacers.
Detach the stud handling adapters from the studs and attach to the next 1
.pair of studs (using the sequence "17" and "47",
"18" and."48", etc.).
9.15 Repeat Steps 9.13 and 9.14 until all 60 studs have been set in the storage position.
9.16 When eenvenient, visually examine and dye pene-trant inspect one-third of the studs upon each 1
I refueling.
Begin with s tuds "1,
4, 7, 10", e tc.,
i 1
upon the first refueling.
Replace any rejected f
scuds.
I 9.17 Detach stud handling adapters from the studs and
) i Il hoist tools clear of studs.
Detach air service c
lines.
Attach service sling to the stud handling tool lifting eye. Remove the stud handling tool from the stud hoist hook and transfer the tools to the storage racks.
I 9.18 After the reactor vessel head and plenum have been l
removed and the indexing fixture is in place on the i
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reactor vessel, install the stud hole seal plugs l.
per Section 10.0 of this procedure.
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Page 20 FP-402 Date 3/7/78 j
Rev. 4 1
NOTE:
Inspect the surfaces of the studs, nuts, and washers.
Dirt or rough metal surfaces must not contact these parts.
The studs are to be cleaned by using an approved solvent and brushing with nylon brushes.
Cleaning must be performed without damaging the stud threads. The studs and threads are to be dried with clean, dry, compressed air. The root area of the threads must be absolutely free of foreign particles.
THE DIFORTANCE OF THREAD CLEAMLINESS CANNOT BE OVERDIPHASIZED, HOWEVER, THE MANGANESE PH0sPHATE COATING ON THE THFIADS MUST NOT BE REMOVED.
Completed By Date Approved By Date i
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l Page 21 FP-402 Date 3/7/78 Rev. 4
10.0 STUD HOLE SEAL PLUG INSTALLATION Initials / Time /Date 10.1 Verify the following:
10.1.1 Reactor vessel closure head removed.
10.1.2 Reactor vessel plenum removed.
10.1.3 Indexing fixture installed on reactor vessel.
10.1.4 RC system water level two to six inches below the reactor vessel flange.
10.1.5 Requf rements through Step 9.18 of this procedure completed as applicable.
10.2 Inspect each stud -hole and note the condition of any hole.which will require reconditioning prior to closure head installation.
10.3 Fill the stud holes to within two inches of the top with the rust inhibitor solution.
10.4 Lubricate a seal plug 0-ring with Molykote-G and place the 0-ring into the groove below the seal plug shoulder.
10.5 Place the seal plug into the stud hole and thread the seal plug until the 0-ring is compressed.
10.6 Install all seal plugs by repeating Steps 10.4 and 10.5.
NOTE: Ensure that any rust inhibitor solution spilled is immediately removed to prevent entry into the RC system.
1 Page 21a FP-402 Date 3/7/73 Rev. 4 m
11.0 STUD IIOLE SEAL PLUG REMOVAL Initials / Time /Date 11.1 Verify the following:
11.1.1 Reactor vessel closure head removed.
11.1.2 Retetor vessel plenum removed.
11.1.3 Indexing fixture installed on reactor vessel.
11.1.4 RC system water level two to six inches below the reactor vessel flange.
11.1.5 Requirements through Step 10.6 of this procedure completed as applicable.
11.2 Remove the seal plugs and discard the seal plug 0-rings.
11.3 Remove the rust inhibitor solution from the stud holes by pu aing to a suitable container.
11.4 Thoroughly dry the stud holes and clean by wire brushing.
11.5 Inspect the stud hole threa s and chase any stud holes with the stud hole chasing tool if any nicks, burrs, etc. exist on the threads or if the stud was sticking when it was withdrawn.
NOTE: Use chase tool only when necessary.
11.6 Vacuum the stud holes to remove debris.
11.7 Lubricate the stud hole threads with Molykote-G.
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Page 21b FP-402 Date 3/7/78 Rev. 4 L
12.0 STUD DISTALLATION Initials / Time /Date 12.1 Verify that all requirements through Step 9.18 of FP-401, Reactor Vessel Closure Head Re= oval and Replacement, have been met.
Also, verify that the 58 studs are stored on the reactor vessel closure head with spacers, nuts, and washers.
Verify that the stud, nuts, and washers all bear the same number for each assembly and that they.are placed in accor-dance with Enclosure 2.
NOTE: Prior to re' actor vessel head and plenum installation and with the indexing fixture in place on the reactor vessel, the stud hole seal plugs should be removed and the stud holes cleaned per Section 11.0 of this procedure.
12.2 Transfer the stud handling assemblies to the ser-vice structure hofsts.
Connect the compressed air supply to both units.
12.3 Coat the stud threads and the seating surfaces of the stud nuts and washers (both sides of the convex and concave spherical washers) with Dow-Corning Molykote-G lubricant.
12.4 Remove each alignment stud in turn, return studs "15" and "45" to the reactor vessel, and install the studs as follows:
Page 22 FP-402 Date 3/7/78 Rev. 4
12.4.1 Attcch a stud htndling adaptcr to the top of an alignment stud, line up the holes in the adapter and stud, and insert the one inch ball-lock pin through to lock.
12.4.2 Check that the stud handling tool hook is in the lowered position. Move the stud hoists with the stud handling tools into position over the align-ment stud.
Lower the tools until the stud transfer yokes are at the same level as the eye of the stud handling adapter.
Line up the holes in the eye and the yoke and insert the transfer yoke ball-lock pin through to lock.
Check that the stud hook retaining pin is also in place.
12.4.3 Using the stud hoist, raise the tool to preload the balance springs until the bottom of the guide plate is in the mid-position in the indi-cator slots.
12.4.4 Move the direction control valve to " Reverse".
Slowly jog the tool counterclockwise to take up slack, then hold the on-off valve and drive the stud out of the stud hole.
As the last threads disengage, the balance springs will lift the stud away from the vessel approximately three-fourths of an inch to prevent damage to the threads.
Nuts and washers will lift out with the studs.
12.4.5 If the stud cannot be turned out of the stud hole using the stud handling tool, refer to Section 14.0 of this procedure.
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Page 23 FP-402 Date 3/7/78 Rev. 4
12.4.6 Using a service sling attached to the polar crane, attach a hook to the second bail of the transfer yoke on the stud handling adapter.
Raise the tool with the hand hoist until the stud is clear of the closure head flange.
Transfer the Icad to the service sling until the full weight of the stud is removed from the stud handling tool.
Remove the ball-lock pin from the stud hook and detach the stud. handling tool from the yoke.
12.4.7 Hoist each alignment stud to the stud storage rack (shown on CAI Dwg. L-001-032).
Seat the stud to the rack with the lanyards.
Remove the stud handling adapter from the stud and attach the adapter to stud "15" or "45".
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12.4.8 Transfer the stud ("15" or "45") back to the reactor vessel head in the area of its original hole. Transfer the load to the stud handling tool and move the hoist along the monorail to center the stud over its original hole.
12.4.9 Perform Steps 12.8,12.9, and 12.10 to install studs "15" and "45".
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Page 24 FP-402 Date 3/7/78 Rev. 4
12.5 Attach the stud handling adapters to the next pair of studs using the sequence "14" and "44", "13" and "43", etc. (as set forth on Enclosure 2).
12.6 Pin the stud handling adapters to the stud handling tools.
12.7 Using the stud hoists, raise the studs out of their storage positions until they clear the reactor vessel flange by approximately one inch.
Remove the stud support spacers. -
NOTE: Move the hoists as necessary to verify stud hole clean-liness, then center the studs over their assigned holes.
12.8 Assure that the stud handling tool drive shaft is in the raised position.
Lower the hoists to insert the studs into their holes until the lowest threads are between one-half and one inch of first thread engagement. Manually depress the rool to bring the first threads into contact.
Set control valves to " Insert" and jog the hand valve to engage the first threads. Drive the stud down until the motor load indicates that the stud has bottomed.
Reverse the direction control valve and back the stud out two turnt to provide a 1/4'in. clearance between the stud shoulder and the chamber on the reactor vessel flange.
The hole in the top of the stud should point in a radial direction to facilitate insertion / removal of the stud handling Page 25 FP-402 Date 3/7/78 Rev. 4
adapter pin without interference with the adjacent studs.
12.9 Remove the stud handling tool and mark, with aligned lines, the closure head flange and the stud assembly.
12.10 While preventing studs from rotating, hand-tighten the stud nuts against the top of the convex spherical washer.
12.11 Repeat. Steps 12.5 thru 12.10 for each of the studs, following the order set forth on Enclo-sure 2, And initially positioning t.e stud handling tool over each stud in turn.
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Page 26 FP-402 Date 3/7/78 Rev. 4
12.12 Detach stud handling adapter from stud and hoist tool clear of stud.
Detach air service lines. Attach service sling to the stud handling tool lifting eye.
Remove the stud handling tool from the stud hoist hook and transfer the tools to the storage racks.
12.13 Remove the pressure sena4*tve tape covering the stud center holes.
Remove tape residue, if necessary, using acetone.
Clean the center hole as necessary.
1 Page 27 FP-402 Date 3/7/78 Rev. 4 L
+
12.14 Wipe off the top of each measuring rod.
NOTE:
If necessary to clean or remove a measuring rod, attach a line to the hole in the top of the rod.
Carefully 1;ver (do not drop) a rod into the stud center hole until the rod rests on the bottom insert of the closure stud.
12.15 Cover the stud center hole area with pressure sensitive tape, if necessary, to preserve stud center hole cleanliness.
Completed By Date Approved By Date
/
\\
Page 28 FP-402 Date 3/7/78 Rev, 4
13.0 STUD LOADING Initials / Time /Date 13.1 Determine and record the preload elongation for each of the 60 studs by performing the following:
13.1.1 Remove the pressure sensitive tape covering the stud center hole and, if necessary, remove the tape residue using acetone.
13.1.2 Zero th.e handheld depth gauge.
Take' care not to disturb the gauge dial once the dial has been zeroed.
13.1.3 Insert the depth gauge pin in the stud center hole so as to contact the measuring rod.
Set the depth gauge anvil on top of the stud.
Gently rock the depth gauge and rotate it
(
until the greatest depth is determined.
Remove the gauge.
NOTE:
Ensure the studs and measuring rods have reached approximate equilibrium temperature prior to taking depth gauge riadings.
NOTE:
Two independent sets of readings will be taken on forms provided in Enclosure 4.
The readings will be taken at the same time by two mechanics positioned 180' apart on the reactor vessel head.
13.1.4 Record the greatest depth reading in column three of Enclosure 4 Page 29 FP-402 Date 3/7/78 Rev. 4
[
q
~
13.1.5-If necessary to preserve stud center hole cleanli-l ness, recover the stud center hole with pressure l
sensitive tape.
4 13.2 If not already in place, use the polar crane to bring the two stud tensioners to the service struc-ture for suspension from the service structure monorail hoists.
13.3 Attach air pressure supply and verify tens oner l
pressure gauge calibration for both tensioners.
13.4 Tension studs in two seating passes followed by two loading passes in the sequences shown on.
Note that Enclosure 3 requires that the studs be tensioned simultaneously in pairs, two studs diametrically opposite each other.
Assure that tensioning is performed in proper sequence. Only studs "1, 11, 21, 31, 41, and 51" are tensioned for the seating passes.
Per-i form the following steps for each tensioning e
sequence, verifying at the beginning of each tensioning sequence with a contact pyrometer that the reactor vessel and closure head =etal
(
temperatures are greater than 60*F.
13.4.1 Locate the stud tensioners over the two studs to be tensioned.
Follow color codes of Step 8.7.
I
)
il l
l Page 30 FP-402 Date 3/7/78
}
1 Rev. 4
-l 10
13.4.2 Using the stud tensioner hoists, lower stud tensioners over the studs ur;il che pedestals come to rest on the closure nead flange.
13.4.3 For engagement reference, note the location of the top thread of the stud by. visual observation through the pedestal viewing port.
Turn the engaging nut drive counterclockwise until the engaging nut con-tacts the thread of the stud. Note the location of the white band.on the engagement nut relative to the indicator lines on the pedestal.
Start engagement and continue turning the engaging nut drive until the upper white band on the engaging nut reaches the original location of the lower band (at initial thread contact).
13.4.4 Increase the hydraulic pump pressure to the read-
[
ing shown in column five of Enclosure 3 for the pass /sequenc e.
Do not exceed 20,000 psi.
13.4.5 Maintain the specified hydraulic pump pressure for a period of 5-10 sec.
Turn the transmission crankhandles clockwise until the stud nuts are seated.
Back off the crankhandle about 45' counter-clockwise.
Seat the stud nut with a sharp clock-vise rap of the crankhandle.
13.4.6 Release the hydraulic pump pressure.
13.5 Complete the first seating pass in accordance with Step 13.4.
13.6 Complete the second seating pass in accordance with Step 13.4.
l Page 31 FP-402 Date 3/7/78 Rev. 4
13.7 Complete the first loading pass in accordance with Step 13.4.
13.8 Complete the second loading pass in accordance with Step 13.4.
13.9 If necessary, remove the pressure sensitive tape and tape residue. Use the handheld depth gauge to determine the elongation for each of the 60 studs.
Record these readings in column four of Enclosure 4.
If necessary to preserve stud center hole c'le'an11 ness, recover the stud center holes with pressure. sensitive tape.
13.10 Calculate the elongation of each stud by subtract-ing the initial depth gauge reading (colu=n three of Enclosure 4) from the second pass depth gauge reading (colu=n four of Enclosure 4) and enter that
(
difference in column five of Enclosure 4.
NOTE:
If any of the individual studs do not conform to the final target elongation of 0.0471 in. + 0.004 in.,
those studs must be recensioned to conform to this requirement of 0.0471 in. + 0.004 in.
NOTE: The following procedure applies to studs that are greater than th: final target elongation of 0.0471 in. + 0.004 in, Increase the hydraulic pump pressure to 19,500 psi a.
or until the transmission crankhandle can be turned (counterclockwis e).
DO NOT EXCEED 20,000 psi.
b.
Loosen the stud nut by turning the crankhandle counterclockwise 360*.
Page 32 FP-402 Date 3/7/78 Rev. 4 6 cd
c.
Reduce the hydraulic pump pressure to 12,600 psi and seat the stud nut with a sharp clockwise rap f
of the crankhandle.
d.
Remove the tensioner load.
NOTE: The following procedure applies to studs that are less than the final target elongation of 0.0471 in. - 0.004 in.
a.
Increase the hydraulic pump pressure ao 12,600 psi.
b.
Seat the stud nut with a sharp clockwise rap of the transmission crankhandle.
c.
Remove the tensioner load.
13.11 Calculate the average for each group of three readings in column five of Enclosure 4 and record that average in colu=n six.
The average group elongation must meet the group target elongation j
(
of 0.0471 + 0.004/-0.002 in.
Comply with the following notes if an out-of-tolerance condition exists.
NOTE:
If the average stud elongation for any group of studs does not conform to the elongation tolerance range of 0.0471 +
0.004/-0.002 in., the studs within that group must be retensioned to conform with the tolerance range.
{
NOTE:
If the average stud elongation (column six of Enclosure 4) for any group of studs is greater than the group target elongation of 0.0471 + 0.004 in., the following unloading procedure is required.
Increase the hydraulic pump pressure to 19,500 psi a.
i or until the transmission crankhandle can be turned (coun terclockwise).
DO NOT EXCEED 20,000 psi.
Page 33 FP-402 Date 3/7/78 Rev. 4 ma
b.
Loosen the stud nut by turning the crankhandle counterclockwise 360'.
c.
Reduce the hydraulic pump pressure to 12,600 psi and seat the stud nut with a sharp clockuise rap of the crankhandle.
d.
Remove the tensioner load.
NOTE:
If the average stud elongation (column six of Enclo-sure 4) for any group of studs is less than the group target elongation of 0.0471 - 0.002 in., the following loading procedure'is required.
i a.
Increase the hydraulic pump pressure to 12,600 psi.
b.
Seat the stud nut with a sharp cicekwise rap of the transmission crankhandle.
c.
Remove the tensioner load.
13.12 After all corrections have been completed, obtain the elongation gauge reading of each of the 60 ?teda '2 ring the dial depth gauge on the stud reference surface as in Step 13.9.
Record the individual stud elongation readings in column seven of Enclosure 4.
13.13 Perform head seal leak test, if required.
NOTE: All stud Landling and tensioning equipment shall remain in a standby condition until the head seal leak test has been successfully cw;pleted.
13.14 Followingsuccessfulcompletionofhiehead seal leak test (if performed), recalibrate l-Page 34 FP-402 Date 3/7/78 Rev. 4
both tensioner pressure gauges and remove all stud handling and tensioning equ'ipment to normal storage.
Continue with Step 9.20 of FP-401, Reactor Vessel Closure Head Removal and Replacement.
13.15 Verify that the blanks on one copy of this pro-cedure (Sections 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, and, if applicable, 14.0) have all been initialed and time / dated by the Ladividuals responsible for completing the steps noted at lef t.
Note any problems'or recomm'endations on the blank sheet opposite the problem step.
Send the initialed copy (with the completed enclosures) to the Maintenance Supervisor.
Completed By Date Approved By Date s
Page 35 FP-402 Date 4/20/78
.(next page 43)
Rev. 6
~
14.0 STUD IMPLCT WRENCH OPERATION Initinis/Tims/ Data 14.1 Use the stud impact wrench only when the stud cannot be backed out wi*.h the stu handling assembly and the following conditions have been met.
14.1.1 Stud detensioned and nut backed off.
14.1.2 Impact wrench and wrench adaptar slung from the hoist.
14.1.3 Air supply available as called out by Section
- 14. 2 or 14. 9.
NOTE:
A, stuck stud has potentially serious consequences for thread, stud, and reactor vesse:1 flange integrity.
No impact tools or ferces in excess of those described in this section shall be used.
If necessary, call for a B & W Service Representative.
l 14.2 Lower the 4,000 foot-pound impact wrench and the impact wrench adapter to the reactor vessel flange area.
Connect air supply (130 sefm at 100 psig through three-fourths inch hose connection) to wrench handle fitting.
14.3 Attach and pin impact ocench..
- er to the stuck stud.
Insert a snap '.. pact wrench into the adapter socket. Turn wrench to convenient angle for safe operation.
Set and lock direc-tion control in " Reverse".
14.4 Roll control handle to-increase speed anu torque of wrench.
Back the stud out of the hole not more than two turns.
Page 43 FP-402 Date 12/11/75 Rev. 1 1
14.5 Remove wrench and adapter.
14.6 Attach stud handling adapter and stud handling tool and remove as directed in Section 9.0.
If stud handling tool still cannot turn the stud, repeat the steps set forth in Sections 14.2, 14.3, and 14.4 but do not back the stud all the way out using the impact wrench.
NOTE: When the top surface of the stud is 32 inches above the top surface of the reactor vessel flange, there is approximately one inch of stud still threaded into the flange. Use the stud handling tool to back out this last inch (as a minimum).
14.7 Chase the stud hole threads with the stud hole chasing tools.
Thoroughly clean the stud holes.
(Wire brushes may be used.)
\\
Dry the stud hole.
Install stud support spacer and install stud in storage position designated on Enclosure 2.
Enter the serial number (1 to 60) on the following blank:
14.8 If the stud impact srench does not torque the stud out of the stud hole, bypass that stud and continue the removal sequence. Meanwhile, immediately notify the B & W Service or Engi-neering Representative that a larger i= pact wrench may be required.
Pagef4 FP-402 Date 12/12/75 Rev. 1 x
a.
14.9 If the 16,000 foot-pound wrench is used, follow the same procedure as for the 4,0d0 foot-pound wrench, subject to the following changes:
a.
Air supply of 155 scfm at 100 psig to one inch hose connection.
b.
Hook attached to one service structure hoist to fit 1-1/2 inch eyebolt for approximately i
250 pound lift.
14.10 Upon completion of loosening studs, as required, r'eturn the impact tools to normal storage.
Ccapleted By Date Approved By Date Page 45 FP-402 Date 12/12/75 Rev. 1 a
ENCLOSURE 1 (Pega 1 cf 4)
CLOSURE ST'D UNLOADING DATA - OPERATION ONLY J
FinST U:TLOADING PASS R1'. ACTOR VESSEL AND CLOSURE !!EAD TEMPERATURE
- F 1
2 3
4 5
SEQ.
STUD HGLE TE:ISIONER HYDRAULIC CRANK!!A.NDLE t:0.
MRGERS C010M CODE.PU"P PRCSSURE*
DJR'S 1
Red 1
31 Yellow 15,000 270* - 3/4 turn 11 Red 2
41 Yellow 15,000 270* - 3/4 turn 21 Red 3
51 Yellow 15,000 270* - 3/4 turn 6
Red 4
36 Yellow 15,000 270* - 3/4' turn 16 Red 5
46 Yellow 15,000 270* - 3/4 turn 26 Red 6
56 Yellow 15,000 270* - 3/4 turn 3
Red 7
33 Yellow 15,000 27C' - 3/4 turn 18 Red 8
48 Yellow 15,000 270' - 3/4 turn 8
Red 9
38 Yellow 15,000 270* - 3/4 turn 1
23 Red 10 53 Yellow 15,000 270* - 3/4 turn 13 Red 11 43 Yallow 15,000 270* - 3/4 turn 28 Red 12 58 Yellow 15,000 270* - 3/4 turn 10 Red 13 40 Yellow 15,000 270* - 3/4 turn 24 Red 14 54 Yellow 15,000 270* - 3/4 turn 30 Red 15 60 Yellow 15,000 270* - 3/4 turn 15 Red 16 45 Yellow 15,000 270* - 3/4 turn 4
Red' 17 34 Yellow 15,000 270* - 3/4 turn 20 Red 18 50.
'lellow 15,000 27G* - 3/4 turn 7
Red 37 li 19 Yellov 15,000 270* - 3/4 turn m
22 i
52 l Red 20
-(ellow 15,000 270* - 3/4 turn i 29 Red 2L i
l 59 Ye_11ow 15,000 270* - 3/4 turu ;
- PSI read at caster gage on pump unit.
Page 46 FP-402 Date 3/10/78 Rev. 5
-o ENCLOSURE 1 (Pcg3 2 of 4)
CLOSURE STUD UNLOADING DATA - OPERATION ONLY (Continued) f FIRST t/NLOADING PASS REA0 TOR VESS7.L A!!D CLOSURE !!EAD TO:PE'lATURE
- F
{,
1 2
.3 4
5 SEQ.
STUD !! OLE TENSIONER HYORAULIC' CitA23:F1.! IDLE NO.
MHDERS COLoft_ CODE PUMP PRESSUP.E*
TURNS t
12 Red 22 42 Yellov 15,000 270* - 3/4 titrn 17 Red 23 47
-Yellow 15,000 270* - 3/4 turn 5
Red 24 35 Yellow 15,000 270* - 3/4 turn 19 Red 25 49 Yellow 15,000 '
270* - 3/4 turn 9
Red 26 39 Yellow 15,000 315* - 7/8 turn 27 Red 27 57 Yellow 15,000 360* - 1 turn 14 Red j
28 44 Yellow 15,000 360* - 1 turn 2
. Red 29 32 Yellow 15,000 2160* - 6 turns 25 Red 30 55 Yellow 15,000 2160* - 6 turns
\\
l I
l, i
4 6
i l
I
- PSI read at master gane on ptanp unit.
g.
'Page 47 FP-402 (next page 50)
Date 3/10/78 Rev. 5 p.
i l_
N
ENCLOSURE 1 l
(Pcgo 3 of 4)
CLOSURE STUD UNI.0ADING DATA - OPERATION ONLY (Continued)
SECOND UNLOADING PASS REACf0R VESSEL A 3 CLOSURE IIEAD TC:PERATURE
- F 1
2
.3 4
5 SEQ.
STUD !! OLE l Cot 0"s TE:!SIONER HYDitAULIC CM::XHA'*DLE NO.
t:1AF.RS CODE FiniP PRESSURE
- TUR"S 1
Red 1
31 Yellow 10,000 2160* - 6 turns 11 Red 7
41 Yellow 10,000 2160* - 6 turns 21 Red 3
51 Yellow 10,000 2160* - 6 curns 6
. R4d 4
36 Yellow 10,000 2160* - 6 turns 16 Red 5
46 YeIlow 10,000 2160* - 6 turns 26 Red 6
56 Yellow 10,000 2160* - 6 turns 3
i Red 7
33 I Yellow 10,000 2160* - 6 turns 18 Red 8
48 Yellow 10,000 2160* - 6 turns 8
Red s
9 38 Yellow 10,000 2160* - 6 turns 23 Red 10 53
-Yellow 10,000 2160* - 6 turns 13 Red 11 43 Yellow 10,000 2160* - 6 turns 28 Red j
12 58 Yellow 10,000 2160* - 6 turns 10 Red 13 40 Yellow 10,000 2160* - 6 turns I
14 54.
Red 24 Yellow 10,000 2160* - 6 turns 30 Red 15 60 Yellow 10,000 2160* - 6 turns l
15 Red
?
1 i
6 45 Yellow 10,000
, 2160* - 6 turns i
i 4 Red 17 34 Yellow 10,000 2160* - 6 turns 20 Red 18 50 Yellow 10,000 2160* - 6 turns 7
Red j
19 37 Yellow i 10,000 2160* - 6 turns 22 i Red 20 i
52 '
Yollow 10,000 2160* - 6_: urns i 29
- Red j
21 i
59
- Yellow 1 10,000 2160* - 6 curas
. *PSL tend at master gag t on pump unit.
)
Page 50 FP-402 Date 3/10/78 Rev. 5
ENCLOSURE 1 (Pego 4 of 4)
CLOSURE STUD U.* LOADING DATA - OPERATION ONLY (Continued)
SECOND UNLOADING PASS REi.CTOR VESSE.L AND CLOSU.'E iiEAD TUTERATURE
- F s
1_
3 4
5 2
SEQ.
STUD F.0LE. TEMSIO:ER HYDRAULIC CP.AN'.GAMDLE NO.
NMBERS I COLOR CODE 20:1? PRESSURE
- TURNS 12 Red 22 42 Yellow 10,000 2160* - 6 turns 17 Red 23 47 Yellow 10,000 2160* - 6 turns 5
Red 35
. Yellow I 10,000 2150* - G turns 24 19 Red
~
25 49 Yellow 10,000 2160* - 6 turns 4
9 Red 26 39
' Yellow 10,000 2160* - 6 turns 27-Red
~
27 57 Yellov 10,000 2160* - 6 turns 14 Red l
28 44 yellow 10,000 2160*. 6 turns 2
Red
~
~
29 32 yellow ALREADY UNLOADED 25 Red
- ~ ~
~-~
- -~
~
30 55 yellow ALREADY C.*LOADZD s
o o
l
\\
k g
l l
2 e
I l
8 E
t __ _
u
- PSI read at master gage on piimp unit.
Page 51 FP-402 Date 3/10/78 Rev. 5
ENCLOSURE 2 STUD LOCATIONS FOR REPLACDENT
/
Alignment Stud Storage Rack Alignment Stud Storage Rack 15 Hole 15 45 Hole 45 14 14 44 44 13 13' 43 43 12 12 42 42 11 11 41 41 10 10 40 40 9
9 39 39 8
8 38 38 7
7 37 37 6
6 36 36 5
5 35 35 4
4 34 34 3
3 33 33 2
2 32 32 1
1 31 31 60 60 30 30 59 59 29 29 58 58 28 28 57 57 27 27 1
56 56 26 26 55 55 25 25 54 54 24 24 53 53 23 23 52 52 22 22 51 51 21 21 50 50 20 20 49 49 19 19 48 48 18 18 47 47 17 17 46 46 16 16 s
Page 52 FP-402 Date 3/7/78 Rev. 4
ENCI.0SUR2 3 (P; iga 1 of 7)
CLOSURE STUD TENSIONING DATA
/
e 1
2 3
4 STUD STUD HYDRAULIC PUMP SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
FIRST SEATING PASS REACTOR VESSEL AND CLOSURE HEAD METAL TDIPERATURE
- F 1
Red 1
5,000 31 Yellow 11 Red 2
5,000 41 Yellow 21 Red 3
5,000 51 Yellow SECOND SEATING PASS REACTOR VESSEL AND CLOSL*RE HEAD MF.TAL TDiPERATURE
- F 1-Red 1
10,000 31 Yellev 11 Red 2
10,000 41 Yellow 21 Red 3
10,000 51 Yellow FIRST LOADING PASS REACTOR VESSEL AND CLOSURE HEAD METAL TEMPERATURE
- F 1
Red 1
19,100 31 Yellow 11 Red 2
18,700 41 Yellow j
21 Red 3
18,100 51 Yellow Page 53 FP-402 Date 2/14/75 i
7 ENCLOSURE.3 (Pago 2 of 7)
CLOSURE STUD TENSIGNING DATA
/
(Continued) 1 2
4 STUD STUD HYDRAULIC PUMP SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
FIRST LOADING PASS l
(CONT'D) 6 Red
{
a 4
'17,700 i
36 yellow 16 Red 17,200 5
l 46 Yellow 26 Red 6
16,900 56 Yellew 3
Red 7
16,500 33 Yellow 18 Red 8
16,200 14 8 v llow e
8 Red 9
15,900 r
38 Yellow j
23 Red 10 15,700 53 Yellow 13 Red 11 15,400 43 Yellow 28 Red 12 15,200 58 Yellow 10 Red 13 15,000 40 Yellow 24 Red 14 14,800 54 Yellow 30 Red 15 14,600 60 Yellow
\\
Page 54 FP-402 Date 2/14/75
ENCLOSURE 3
~
(Pcg2 3 of 7)
CLOSURE STUD TENSIONING DATA (Continued)
{
l 2
3 4
STUD STUD HYDRAULIC PLW SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
FIRST LOADING PASS (CONT'D)
~
15
. Red.
16 14,500 45 Yellow 4
Red 17 14,300 34 Yellow 20 Red 18 14,200 50 Yellow 7
Red 19 14,100 37 Yellow s
22 Red 20 13,900 52 Yellow 29 Red 21 13,800 r
59 Yellow 12 Red 22 13,700 42 Yellow 17 Red 23 13,600 47 Yellow 5
Red 24 13,500 35 Yellow 19 Red 25 13,400 49 Yellow 9
Red 26 13,300 i
l 39 Yellow l
27 Red 27 13,200 57 Yellow l
\\
j l
l Page 55 FP-402 Date 2/14/75 U
m
~'
e ENCLOSURE 3 (Pcg3 4 of 7)
CLOSURE STUD TENSIONUlG DATA
/
(Continued) 1 2
3 4
STUD STUD HYDRAULIC PUMP SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
FIRST LOADING PASS (CONT'D) 14 Red 28 13,100 44 Yellow 2
Red 29 13,000 32 Yellow 25 Red 30 12,900 55 Yellow l
i I
t' e
I j
s.
Page 56 FP-402 Date 2/14/75
\\
ENCLOSURE 3
~
(Paga 5 of 7)
CLOSURE STUD TENSIONING DATA (Continucd) 7 1
2 3
4 STUD STUD HYDRAULIC PUMP SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
SECOND LOADING PASS REACTOR VESSEL AND CLOSURE HEAD METAL TEMPERATURE
- F' 1
Red 1
12,600 31 Yellow 11 Red 2
12,600 41 Yellow 21 Red 3
l 51 Yellow 6
Red 4
12,600 36 Yellow 16 Red 5
12,600 46 Yellow 26 Red 56 Yellow 3
Red 7
12,600 33 Yellow 18 Red 8
12,600 48 Yellow 8
Red 9
12,600 38 Yellow 23 Red 10 12,600 53 Yellow 13 Red 11 12,600 43' Yellow 28 Red 58 Yellow Page 57 FP-402 Date 2/14/75
ENCLOSURE 3' (Pcgs 6 of 7)
CLOSURE STUD TENSIONING DATA (Continued)
?
1 2
3 4
STUD STUD HYDRAULIC PUFO SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
SECOND LOADING PASS (CONI'D) 10 Red 13 12,600 40 Yellow 24 Red 14 12,600 54 Yellow 30 Red
~
15 12,600 60 Yellow 15 Red 16 12,600 45 Yellow s
4 Red 17 3
12,600 1
34 Yellow 20 Red 18 12,600 r
50 Yellow 4
7 Red
]
19 12,600 1
37 Ye1 Jew i
22 Red 20 12,600 I
52 Yellow i
29 Red 21 12,600 59 Yellow 12 Red l
22 l
12,600 42 Yellow i 17 Red 23 l
12,600 47 Yellow !
5 Red
'l 24 12,600 35 Yellow
-Page 58 FP-402 Date 2/14/75
ENCLOSURE 3 (Pagn 7 of 7)
CLOSURE STUD TENSIONING DATA (Continued) r 1:
1 2
3 4
STUD STUD HYDRAULIC PL72 SEQ.
HOLE TENSIONER PRESSURE NO.
NO.'S COLOR CODE (PSI)
SECOND LOADING PASS (CONT'D)
~
19
' Red
~
25 12,600 49 Yellow 9
Red 26 12,600 39 Yellow 27 Red 27 12,600 57 Yellow 14 Red 28 12,600 44 Yellow
(
2 l Red 29 1
12,600 32
! Yellow i
25 Red 30 12,600 1
55 Yellow Completed By Date Approved By Date Page 59 FP-402 Date 2/14/75
3 DATi. SilEET 1 CLOSURE STUD ELONCATION DATA
-l 3
1 2
3 4
5 6
7 8
9 i
=
l SECOND PASS CORRECTED (la t'EQUIRED) or o
STUD l
AVERACE ELONCATION AV8 RAGE CROUP' IIOLE PRE-l.0AD ELONCATION ELONGATION CALCULATED CACE ELONCATION CALCl! LATED NO.'S RFADIUC READING (Col. 4 minus Col. 3)
ELONCATION READING *
(Col. 7 minus Col. 3) El.ONCAT I,0N
- 1 l
1 2
I 3
{
i 4~
\\
i 2
5 l
6 7
,*3 8
h 9
I i
4 11 i
10 12 M
13 m
E 5
14 15 o
w l
l 16 I
6
' 17 l-I'~
f
-']
I 18 i
19 20
~~
~
~ ~ ' ~
~
l u
{ 22
~
-l 21 i
8 l 23
~~
j 24 i
$3 25 W
i l
l 40 9
, 26 i 2J L __
j__ _
l eg m
n un D
NOTES:
1.
All dinensions are in luchen.
g g 2.
Al1. meat,iscen.ents are made from the stud reference surface with a handheld depth gane.
g g 3.
The ta r;;c t elongation is 0.047 Inches.
y g
4.
Indtvidual stod clongation (column 5 or 8) muut meet the +0.004/-0.004 inch tolerance y
o r.tage requirement.
S.
Group stud elongation (column 6 or 9) must meet the +0.004/-0.002 inch tolerance range requireiaent.
O
m DATA SIIEET 1 CLOSURE STUD ELON6ATION DATA (Cont'd) 1-g l?
1 2
3 4
5 6
7 8
9 l
l SECOND PASS CORRECTED (IP REOUIRED)
Os g
- S'nJD l AVI.i:AdR-gLo;iGATIGli'~
f.**f t AGE !
ICEOUP l-:0. ' S !' PRE-LOAD I! OLE ELO."; CATION ELONCATION CAI.CULATED GAGE El.ONCATION CALCul.WED 1 READIMG RE/. DING (Col. 4 minus Col. 3)iEl.ONCATION READING *
(Col. 7 minus Col. 3) El.ONCA't IGNd 28
-l l
10 29
, 31 I
. l
~l t
i 30 t
^
I
~1 i
I
~ 7 11 l32 3
g
~~~!
i 33
, 34
---{
l 12 35
-I m6 i
t 3 l
37 l
_j 1
~
j l
. 13 38 1
39
._ _ _. l y
~] ~ 'O 4
~
I
{
C 42 43 l
15 44 45
~
46
~
l
~~i
}
16
, 47
~
~~~
~
l
- zg i-g 49 17 50 51
~ '
- n o 52 a ca 4 2 18
, 53 ew l 54 l
7 2D
- 0TES
1.
All d Im.mslons are in inches.
Q 3 All vacanurener.ts are made from the stud reference surface with a handheld depth gene.
h !
2.
3.
The tar;et clony.ation is 0.047 inches.
4.
Individual scud elongation (column 5 or 8) must meet the 4 0.004/-0.004 inch tolerance w
)
rr.ngi: requirement.
o 5.
Group arud clongation (column 6 or 9) must meet the +0.004/-0.002 inch tolerance tange requirceent.
S
.s w
a
~.
1 DATA SilEET I CLOSURE STUD ELONCATION DATA (Cont'd) m 1
2 3
4 5
6 7
8 9
e SECOND PASS CORRECTED (IF REQUIRED)
STUD AVERAGE ELONCATION AVERAGE CROUP HOLE PRE-LOAD EI.ONGATION EI.ONCATION CALCULATED CACE ELONGATION CALCULATED NO.'S READING READING (Col. 4 minus Col. 3)
ELONCATION READING *
(Col. 7 minus Col. 3) ELONGATION
- 55 19 56 57 58 20 59 60 NOTES:
1.
All dimensions are in inches.
2.
All measurements are made from the stud reference surface with d handheld depth gage.
3.
The target elongation is 0.047 inches.
4.
Individual stud elongation (column 5 or 8) must meet the 40.004/-0.004 inch tolerance range requirement.
y 5.
Group stud elongation (column 6 or 9) must meet the 40.004/-0.002 inch tolerance range requirement.
S.
8 Completed Ily Date Approved 11y Date
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Page 64 FP-402 Date 3/7/78 Rev. 4
DATA S!!EET II CLOSURE STUD ELONCATION DATA (Cont'd)
's N
1 2
3 4
5 6
7 8
9 co\\h'\\
SECOND PASS CORRECTED (IF REQUIRED)
\\
STUD AVERACE ELONCATION AVERACE s
CROUP IIOLE PRE-LOAD ELONCATION ELONCATION CALCUl.ATED CACE ELONCATION CALCULATED NO.'S READING READING (Col. 4 minus Col. 3)
ELONCATION READINC*
(Col. 7 minus Col. 3) ELONCATION*
55 19 56 57 58 20 59 60 NOTES:
1.
All dimensions are in in hes.
2.
All measurements are made from the stud reference surface with a handheld depth gage.
3.
The target elongation is 0.047 inches.
4.
~
Individual stud elongation (column 5 or 8) must meet the +0.004/-0.004 inch tolerance range requirement.
- ?.
5.
Group stud elongation (column 6 or 9) must meet the +0.004/-0.002 inch tolerance range requirement.
c r
Completed By Date Approved 117 Date N5 s"
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R;v. 10 6/15/78 v.
f-
-occuinent seces c
n<FORMATI"'
l i
i C. R. Nuclear i
e REFUELING PROCEDURE FP-501 FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 REACTOR INTERNALS RDIOVAL AND REPLACDIENT
...r. q Docket #M02 Cer.ttcl 7#237M'b -
Cfe8 CIE2 gen.P,TCIY Z20T. fi'?'2
- r. c REVIEWED SY:
Plant Review Committee Club f$b DC42.
i
&/ic/77' Date
/
/
~
Meeting No.
APPROVED ' Y:
Nuclear Plant Man., er d g/
/.// f sAkc.y r ws Date ( 4/a /-lg/
{
l "
9"-
e 1.0 PURPOSE To set forth the steps required for the re= oval and replacement of the rea'ctor internals.
Procedure Section Preparation 8.0 Placing Indexing Fixture on Reactor
' Vessel Flange 9.0 Re::.-in3 Indexing Fixture From Reactor Vessel Flange 10.0 Re= oval of the Plenu - Wet Method 11.0 Replacement of the Plenum - Wet Method 15.0 Re= oval of the Plenu / Core Support Asse=bly 13.0 Replacement of the Plenum / Core Support Assembly 14.0 Recoval of the Plenue - Dry Method 15.0
(
Replacement of the Plenum - Dry Method 16.0 Red:.al of Cere Supp:rt Assembly With:ut Plenue 17.0 Repl :ement of Core Support Assembly With:ut Plenun 18.0 Installation of Surveillance and Radiation
~
Speci en Capsules 19.0 PU I
!'P-501 Pate 6/15/78
- % '.. 10 l
2.0 DESCRIPTION
2.1 The reactor internal components include the plenum assembly and the core support assembly.
2.2 The core support asse=bly consists of the core support shield, vent valves, core Jarrel, lower grid", flow distributor, in-core instrument guide tubes, thermal shield, and surveillance holder i
tubes. Enclosure 1 shows the reactor vessel (RV), reactor, and the vessel internals arrangement.
The reactor internal compo-nents do not include fuel assemblies, control red assemblies (CRA's), surveillance specimen assemblies, or in-core instru-mentation. All internal components can be removed from the RV to allow inspection of the reactor internals and the RV internal surface.
The core support assembly must be in place during refueling.
2.3 The plenum asse=bly is located directly above the reactor core and is removed as a single component before refueling.
It con-sists of a plenum cover, upper grid, CRA guide tube assemblies, and a flanged plenum cylinder with openings for reactor coolant (RC) flow.
Three lif ting lugs are provided for handling the plenum asse=bly.
2.4 Surveillance specimen capsules may be removed after the plenum is removed.
2.5 Availability of only one storage stand requires that the core support assembly be removed with the plenuti.
The plenu / core support assembly are recoved and replaced ns a' single unit with the plenum in place in the cc.re' support assembly.
NOTE: The ;'l enum m:1v 5e removed and placed in t! c (:milew end of the refuelin.* c.inal, which will allow re. :1 of the core support.t.eembly without the p1thun.
P t J.e 2 FP-50i
?.t t e 3/A/78 Rev. 6
2.6 The head and internals handling fixture assembly and the inter-nals handling adapter, pendants, and spreader ring h ive been designed and manufactured to be used for the removal of the RV internals. This handling gear is used when re=oving the plenum (spreader ring optional with " dry method).
The sa e equi,pment with some modification is used to remove the plenum /
core support assembly together as one lift.
Replacement of internals is made using the sa=e handling equipment.
2.7 The internals indexing fixture forms an extension of the four RV internals' keys to orient the internals for re: oval from and insertion into the vessel.
2.8 The internals storage stand is designed to receive either the plenum assc=bly alone or the core support assembly with the plenum in place.
2.9 The internals handling adapter latch boxes and the indexing fixture alignment stud locks are remotely-operated with the long-handled tools when the refueling canal is flooded.
2.10 The approximate weights of the internals and handling tools are as fo11cus:
-98,500 lbs. - Plenum Assembly 257,800 lbs. - Core Support Assenbly
'12,000 lbs. - Head and Internals Handling Fixture Assembly v 3',000 E ;. - Internals Handling Adapter, Pendants, and Spreader Ring 12,500 lbs. - Internals Indexing Fixture 8,200 lbs. - Internals Storaga S,tand ' As sembl-
-(ca. ) S50 lbs. - Internals Handling Adapter (Per?
t) As.c. 5 !;.
('ea. )
74 lbs. - Internals Indexing Fixture Pend.
s 1, '. M 1 S s. - :n t e:. : e li.1n.2 I inn fxt ens ion Page i FI'-;U I tre 3/8/78
',.. 6
2.11 When removing the plenum assembly, lif t weights are as follows:
Plenum Assembly 98,500 lbs.
Head and Internals Handling Fixture 12,000 lbs.
Internals Handling Adapter, Pendants, and Spreader Ring 3,000 lbs.
Internals Handling Extension 3,400 lbs.
TOTAL 116,900 lbs.
2.12 The core support assembly and plenum may be removed as a single i
unit., The upper 11~ft. of the cc~e support assembly and the entire plenum vill be cut of the water while the assembly is clearin,g the flange of the RV.
The lift weights are as follows:
Plenum Assembly 98,500 lbs.
Head and Internals Handling Fixture 12,000 lbs.
Internals Handling Adapter, Pendants, and Spreader Ring 3,000 lbs.
Internals Handling Extension 3,400 lbs.
Internals Indexing Fixture 12,500 lbs.
Core Support Assembly 222,920 lbs.
TOTAL 352,320 lbs.
Less Suoyancy in Borated Water 23,000 lbs. (apprcx.)
-1 ADJL'STED TOTAL 324,320 lbs.
2.13 The fuel transfer canal will be flooded to an elevation of 15-ft., 6 in, while the internals are being moved.
The le.el of the R7 flange is 135 ft.
The raxi=um vertical length of the core support assembly (not including the top lifting lugs) is 30 f t.
Allowing for a six inch clearance over the RV flange, the top of the core support shield (upper major component of the crre suppert assembly) will be 11 ft. above the water when the bottar of the core support assembly (the projecting tubes) clears the RV fl n;c.
The plenum is fully recessed in the core support assembly but the plenum will be fully out of the water when the upper 11 ft. of the core support assembly is out of the water.
P,,i.
re ol s t. s
, > 3 17.-
-s 1
NOTE: The plenum may be removed and/or replaced while the f'
' refueling canal water level is between six inches below the RV flange and normal refueling level (154-ft., ~6 in.), as needed to limit radiation levels.
/
4 1
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Page '.a-n* -y,q t,.te 3/8/78
- e. v. 6
3.0 REFERENCES
~
f' 3.1 FP-401, Reactor Vessel Closure Head Removal and Replace =ent 3.2 FP-402, Reactor Vessel Closure Head Stud Re= oval and Replacement 3.3 FF-201, Refueling Operation Sequence of Events 3.4 FP-301, Preparation for Refueling 3.5 FP-304, Fill and Drain of the Fuel Transfer Canal
'3. 6 CP-ll5, In-Plant Equip:2nt Clearance and Switching Orders 3.7 FP-701, In-Core Monitor Handling 3.8 B & W Dwg. No. 10006, Reactor Vessel Material Surveillance Progran 3.9 B& ' Dvg. No.142913E, Plenum Assembly 3.10 B & W Dwg No. 27065F, Core Support Assenbly 3.11
-B & W Dug. No. 165259E, Head and Internals Handling Fixture Assenbly 3.12 B & W Dwg. No. 165261E, Internals Handling Adapter, Pendants, t
and Spreader Ring Arrangecent
?.13 B & W Dwg. No. 165262E, Internals Handling Adapter Asse:bly 3.14 B & W Dvg. No. 28262, Internals Indexing Fixture 3.15
.B & W Dwg. No. 16526SE, Internals Storage Stand Asse:bly 3.16 B & W Dvg. No. 105737D, Internals Handling Extension
-3.17 B & W Dvg. No. 20S574E, Specimen Handling Tool 3.1S
~ B & W Dvs. No. 30757F, Surveillance Capsule Positiener Arrangement
-3.19 B & W Dwa. No. 170401E, Surveillance Holder Tube 2.sse:bly and Details f
--- 3. 2 0
' B & W Dwg. No. 1739E, Surveillance Capsule 5
~ w ~*' '
)*
3.21 B & W Dwg. No. 13616EE, Long-Handled Tool s-3.22 B & W Dwg. No. 136169E. Long-Handled Tool Fittings P.y e 5 FP-501
'.i a e ~ ;i/7-T.,
+
3.23 B'& W Dwg. No. 20S558E, Push Rod Assembly and Detail' s
/I 3.24 B & W Dwg. No. 13636SE, Spring Cartridge Assembly
~
3.25' B & W Dwg. No. 16355SE, Surveillance Specimen Storage Rack 3.26 B & W Dwg. No. 51-00-007-03, Surveillance Capsule-3.27 3 & W Dwg. No. 32913, Closure Head an'd Plenum Assembly Handling 3.28 FP-404, Canal Seal Plate Removal and Replacement 3.29 OP-303, Draining and Nitrogen Blanketing of the RC System 3.30 OP-209, Plant Cooldown 3.31 SP-441,UnitSitutdownSurveillancePlan 3.32 SP-443, Master Suree111ance Plan 3.33 3 & W Dwg. No. 1001f.35F, Closure Tool Assembly 3.34 B & W Dwg.. No. 153309E, Closure and Holddown Asse=bly 3.35 3 & W Dwg. No. 240667E, Surveillance Specimen Guide Tube 3.36 B & W Dwg. No. 1001'40E, Pump and Eydraulic Asse=bly 3.37 B & W Dwg. No. 100~ '4E, Surveillance Specimen Handling Tool 3.38 B & W Dwg. No. IC01'67D, Torque Shaft Asse=bly 3.39 B & W Dwg. No. l'.65?SD, Mandrel Asse=bly
. e.
Par #
t' Fl'-3 dl Dettc h/L5/7e i:
. 10
4.0 ENCLOSURES f
Reactor Vessel and Internals General Arrange =ent (sketch) i
'(deleted).
~Enclos'ure 3 Required Initial Cenditions and Plant Status Encisoure 4 Figure 1, Surveillance Specimen Holder Tube Locations and Surveillance Specimen Capsule / Closure Asse:bly
/ Positioning
- Figure 2 Specitan Capsule and Closure Asse:bly Storage Rack
\\
i.
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Page 7 FP-501 pa:e.5/13f73
- n. 10
5.0 LIMITS aND PRECAUTIONS 5.1 Work may be carried forth only when the temperature of the reac-tor vessel exceeds the Design Transition Temperature (DTT).
5.2 No welding, burning, chipping, grinding, arc strikes, inad-vertent impacts, notches, grooves, o'r stress concentrations shall be performed on the reactor or reactor internals.
t 5.3 Prevent contamination of the reactor vessel internals from any source (rags, debris, part pieces, tool parts, or dirty tools, etc.).' Secure tools with lanyards for use where they could drop into the reactor vessel.
Arrange lights so that breakage would.not contacinate. Weld, tape, or otherwise secure equip =ent parts to prevent accidental disasse:bly into the reactor vessel.
Tape shut the pockets in the clothing of the work =en.
Secure with tie lines the glasses worn by the vorh=en.
Maintain required standards of cleanliness for 1
all tools and handling ecuip ent which will be i=nersed in the RC water.
If any loose ite: is dropped into the reactor vessel or internals, report the circumstances to the Main-tenance Supervisor.
5.4 Inspect the head and internals lifting fixture, crane cables, and fittings before lifting the plenum.
5.5 Notif'y the ChenRad Section before removing any ec=ponent frem the reactor vessel.
5.6 Saf ety-lock the connecting pins on the hecd an'd internals handling fixture prior to use.
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- 0. t w.; 3)/ 7.
A v.
S
5.7 Where use of special cools is directed in this procedure, do f
not use other tools without first obtaining permission from g
the Maintenance Supervisor.
I 5.8 Use a crane lowering speed of less than one foot per minute during the final six inches of travel.
5.9 Do not allow the crane hook to come in contact with RC.
5.10 The ChemRad Section shall be responsible for assuring that radiation levels are monitored to verify that working li=f ts are not exceeded.
5.11 The rigging of the' handling equipment has been adjusted to achieve level lifts of the plenum and core support assembly.
In order to obtain this level lift, each element of the rig-ging equipment must be assembled as match..-ked during adjust-ment.
The spreader ring and pendant assemblies must be match-marked with respect to each other, to the head and internals handling fixture, and the axes of the RV internals to assure proper orientation and le.*el during all handling eperatiens.
5.12 Prior to removal of RV internals, withdraw the in-::re meni-coring instruments at least 21 ft. from the fully inserted position.
5.13 Do net load the polar crane in excess of its ISO ten ccra:ity.
The core support assembly shall not be hoisted except when the fuct transfer canal is flooded to 154 ft., 6 in.
s
.I f i l[-hhk
,).
.~
5.14 Locate the storage rack for the surveillance speci= ens and
/
dummy capsules so as to =inimize radiation exposure.
5.15-Maintain direct. communications between the control Center and the itaintenance Supervisor at the RV when caking changes in core equipment.
5.16 Do net use lubricants other than Neolube where contact will
/
be =ade with,RC.
5.17 Before swinging the plenus or the core support asse=bly over the flange of the reactor, verify that sufficient clearance exists. For the core support asse=bly, this clearance must be sufficient for the in-core instru=ent guide tubes which project below the flev distributor.
Clearance should be about six inches.
Excess clearance will have the undesirable effcet of causing : ore exposure of the core support assembly above the water level.
5.18 Just prior to lifting the indexing fixture, ensure that the ball on the indexin; lifting pendant is preperly seated in the indexing fixture lif ting pad.
5.19 For equipment to ec:; :ent latching / unlatching cperations, the use of the long-handled tools, nylon ropes, or lecal operation is permitted, as apprep isce, unless specifically stated other-wise in the procedure er radiation levels are liniting. Radia-tion icvels may inhibit local operations.
5.20 As a nini=um, the fell: wing instr entatica shall be OPERABLE:
a.
T+.
source range ne tron flux m. niters, each with visual
.n 'ication in the Centrol R00;".ind one with audible indt-ca: ion in the Centr:1 Room. a:. '
\\
P.. g e 10 FP-501 Date 3/J3/'/S i:. A.( 7
b.
.One auxiliary source range neutron flux monitor with audible-2 I
indication in the containment or'one source range neutron 1-flux monitor.with audible indication in the containment.
9 f
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6.0 EQUIPMENT AND PERSONNEL REQUIREENTS 6.1 Tie-lines for tools used over the reactor.
6.2 Radiation monitors as called out in the Radiation Work Permit (RWP).
6.3 One polar crane operator and five mechanics to work to this procedure, three mechanics *of which must be able to perform the pigging operations called out by this procedure.
6.4 Material for cleaning up any spillage of contaminated water.
6.5 Head and Internals Handling Fixture 6.6 Internals Handling Exte'hsion 6.7 Indexing Fixture and Pendants 6.8 Spreader Ring 6.9 Internals Handling Adapter and Pendants 6.10 Internals Storage Stand Assembly i
I 4
6.11 Long-Handled Tool and Fittings (3 & W Dwg.'s 136168 and g
136169) i 6.12 Safety k* ire j
6.13 Six shin pintes and iceking pins for the plenum hoist pendants.
l (These are identified as 233 and 273 on B & W Dwg. 163261E.)
r 6.14 Power supply (110 volts AC) for lights and power tools.
i 6.13 Replacenent specimen capsules and dunmy capsules, as required.
6.16 One copy of this procedure with wooden pc,ncil only.
\\
P. ige 11' FP-5";
- 1) r e 1/8/78 i'
6
1 l
6.17,
Use of the polar crane in the Reactor Building (RB).
1
-(
6.18 Neolube Lubricant 6.19 Emery cloth and,small surface grinders for use on stainless stee1.
6.20 Underwater Ca era and Lights 6.21 Manu, ally-Operated Hoist (2,000 lb. capacity) 6.22 Equipcent for two-way radio coc:munication between the tele-vision receiver and the polar crane cab during transfer of the plenus and ?lenum/ core support assembly.
6.23 Nylon Ropes (approximately 60 ft. long and appro,cicately 3/8 in. diameter) 1 i
4
(.
PA'.**
12 -
P-:,01 9;g g g,'t/73 R e.*.,
7.0 REQUI?ID INITIAL CONDITIONS AND PLANT STATUS NOTE: Cceplete Enclosure 3 to show that each condition of Section 7.0 has been met.
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-7.1 The reactor building has been cleared for entry by the ChemRad Protection Engineer.
7.2 Clean the internals handling extension, the head and internals handling fixture, and the internals handling adapter, pendants, and spreader ring prier to use.
7.3 Missile shield slabs renoved to storage locatien shown on GAI'Dwg. No. L-001-032.
7.4 The RC system has been cooled and depressurized in accordance with 0?-209, Plant C::li wn.
7.5 Head seal leak-off valve to reactor building ner:al sunp closed.
7.6 The RC system has been drained and blanketed in accordance with OP-303, Draining and Nitrogen Blanketing of the RC System, to bring the coolant level in the reactor vessel between two and six inches below the flange.
7.7 Reactor vessel c10sure head removed in accordanza with FF-401, Reactor Vessel Cicsure Head Removal and Replacenant.
7.8 Canal saal place in ;_a:e in accordance with ??-101, Canal Seal
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Plate Renoval and Rapla:enent.
.9 All in-core monitoring instruments have been withdrawn at least 21 feet frca the fully inserted position in accordance with ??-701, In-Core ":nitor Handling.
7.10 Clean the internals storage stand and store in the deep end of the fuel transfer canal with one of its guide block cut-outs aligned t.
l with the U, X, Y, and : axis positions of the rea: tor.
If any dire l
or debris is present.cn the internals storage stand when the canal
\\
1 is flooded over the reactor vessel, the RC will be contaminated.
f.:ee 13 n'-501
" ate../20/73 Rev. S
7.11, An approved RWP and Equip =ent Clearance Order.
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7.12 Adequate lighting has been installed to make possible remote, visual verification that the plenum and core support assembly clear the RV flange during transfer.
7.13 The fuel transfer canal has been washed down in accordance with FP-)04, Fill and Drain of the Fuel Transfer Canal.
7.14 Prior to and.during any core alterations, the Shift Supervisor will 'terify that all Surveillance Procedures required per SP-441, Unit, Shutdown Surveillance Plan, and SP-443,1: aster Surveillance Plan, are being co=pleted within the prescribed tire fra es as stated within SP-441 and SP-443.
i 4
P 2e FP-501 Date 3 / _ ;,' !S kc'. 7
8.0 PREPARATION Initials NOTE:
a.
Man in charge shall initial the blank to right of each section (Sections 8.0 thecugh 17.0) after completion of that step,
- b., Complete Enclosure 3 before starting work.
8.1 A Radiation Work Permit (from the Che= Rad Section) and an Equipment Clearance Order (from the Operations Sec-tion per CT 115, In-Plant Equipient Clearance and
+
Switching Orders)'have been approved and issued.
8.2 The limits and precautions of Section 5.0 have been noted.
8.3 Equipment and personnel are available as listed in Section 6.0.
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8.4 The initial conditions of Section 7.0 have been cet.
8.5 The handling and indexing fixtures and special tools will be sub=erged in the pool-water.
Carefully clean these fixtures before submerging so as to avoid con-tacinating the RC.
Remove any loose dirt and rust; wash down with decineralized water.
While cleaning, inspect for any visually apparent evidence of cracking or yielding.
Apply a light fil: of Neolube to bearing holes.
The fixtures. include the follow-ing:
Head and Internals Handling Fixture (3 & W Dag. No. 165259 E) a.
b.
Internals Handling Extension (3 & W Drg. No. 105 73D) c.
Pendants (S i W Dwg. No. 165261E) d.
Indexing Fixture (3 & W Dwg. PD 23262) i'.tr.e - 15 Fl*-501 Date ~/2I/76 i
Rev.-1
O e.
Spreader Ring (B & W Dwg. 165261E) f.
f.
Internals Handling Adapter (3 & W Dwg.165261E) 4 g.
Long-Handled Tool (B & W Dwg. 136168E) h.
'Long-Handled Tool Fittings (B & W Dwg. 136169E) 1.
Internals Storage Stand Asse=bly (B & W Dwg. 16526SE)
/'
8.6, Check all latches for freede: of action.
Lubricate with Neolube, as necessary.
8.7 Do not adjust or loosen turnbuckles during assembly.
Safety-lock pins and nuts wherever provision is made for safety locking.
8.8 Pin the internals handling extension to the polar crane and safety-lock pins and nuts.
<r 8.9 Fin the head and internals handling fixture to the internals handling extensien and safety-lock pins and nuts.
S.10 Check guide days en the in ernals indexing fixture f.r evidence :f galling.
Dress surface lightly to rc.< tore finish if required.
Do not re=ove base e:al.
S.11 Oppa all latches and locking tars.
8.12 Install the canal seal plates in accordance with FP-404, Canal Seal Plate Renoval and Replacement.
S.13 Assure li.chts are installed and operating 81 *. ( S f ac t0 t' i ' *.
P.t e e 16 F ~ - -M !
D:ste 1/3/79 Rev. 6
8.14 '
Verify that radiation monitoring equipment as called out in elke Radiation Work Permit is operating
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satisfactorily.
8.15 Verify that communication is satisfactory between the Test Supervisor and the polar crane operator.
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L-i I
I l
1 l
t 17 t'P-5.01
:e 3/19/74 3
9.0 PLACING INDEXING FIXTL*RE O?: REACTOR VESSEL TLANGE Initials
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9.1 Remove the pendants from the indexing fixture and attach them to the outboard holes in the head and 4
internals handling fixture. Match each pendant to the corresponding marked hole.
NOTE: The internals indexing fixture may be installed prior to i
flooding the refueling canal, if radiation levels pereit.
9.2 Position handling fixture o ter indexing fixture.
Rotate to proper orientation so as to match each pendant to the corresponding marked mating socket on the indexing fixture.
Engage lifting pendants and cicse locking bars.
9.3 Lift iniexing fixture.
Clean bottom flange as necessary to remove loose rust and contamination.
Open the guide stud locks.
9.4 Move the fuel handling bridges clear of the R7.
9.5 Or.ient :he axis of the indexing fixture with the axis of the RV over the RV.
Fosition the indexing fixture guide stud 1ccks e rer the guide studs and lower :he indexing fixture to rest on the RV flange.
9.6 Rotat
- ha guide s :d 15cks into locking position and 2*: '. Move Ic; kin; bars on indexing fixture pendt :' :o the er.
pcsiticn.
Disengage the index fixture li*-ing par.:0. ts from their matir rkets.
L' 4 frc
.' canvenient location with!
- fe radia: L : lini:..
P.. s TP ; et
.:t 3/8'75 P.1
. 6
9.7 Heist the head and internals handling fixture (with the indexing fixt2re lif ting pendants) to a convenient it, cation.
CAUTION: Guide indexing fixture lif ting pendants to clear the lif:ing pads.
9.8 Remove the indexing fixture pendants from the head.and internals handling fixture.
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Page 14 n -Sal
... i t i-3/8/78 6
10.0 REMOVING INDEXING FIXTURE FROM REACTOR VESSEL F1.ANGE Initials 10.1 Attach the indexing fixture pendants to the outboard holes in the lifting pads of the head and internals handling fixture. Match each pendant to the corre-sponding marked hole.
NOTE: The internals indexing fixcure may be removed prior to
/
flooding the refueling canal, if radiation levels permit.
10.2 Move the fuel handling bridge clear of the RV.
10.3 Posi. tion the handling, fixture over the indexing fixture. Rotate to same* orientation as when the indexing fixture was placed on the RV.
(See Step 9.2.)
10.4 Lower the handling fixture so as to engage each pendant to the corresponding cating socket and close the locking bars.
1 10.5 Rotate the guide stud locks to the unlecked position.
10.6 Hoist the indexinz fixture clear of the cuide studs and move to as=icned storage.
Rinse down with demin-eralized water s necessary to reduce radioactive contamination to an acceptable level.
10.7 Renove the inde:.:ine fixture pendants f rom the head and internal.<
- lling fixture.
Mcve the pendants to assigned st n.:e.
e,i' 20
" P l);t t e- 'I/0/7d Ih
- V. It
11.0 REMOVAL OF THE PLENL*M - WET METHOD
' Initials 11.1 Place the indexing fixture in accordance with Section 9.0.
11.2 Move fuel handling bridges to the opposite end of the refueling canal from which che plenum is to be placed (park clear of RV).
11.3 Attach the internals handling adapters, pendants, and spreader ring (See note of Step 13.3.) to inboard holes in the pads of the head and internals handling fixture.
Match all ele =ents'as indicated by =atch-marks.
Latches should be closed; they will open and close automatically
(
during latching operations.
Pendants cust be in posi-tion for plenus lift.
NOTE: Nylen ropes =ay be tied to the latches for case of remote unlatching, if. desired.
11.4 Move the assembly into position oter the reactor center with the auxiliary hook oriented to the east of the main hock.
Orient the assenbly so the axis coincides wi:h the RV axis and alignment = arks for bridge and trolley positions are c:rrectly aligned.
Lo'Jer so as to engage the latch of each pendant I
(See note, this section.) with the carresponding I
plenum lif:ing lu;.
f' l'a:'.c 21 l'l'-NJ L ltire 9/il/73 R. v. 9
NOTE:
The "A" pendant of the lifting assenbly should engage the
/
"Y" axis lifting lug of the plenum. The distances between
~
the eyebolt shafts should be approxi=ately:
"A" leg -
2.828 in., "B" leg - 2.418 in., and "C" leg - 2.500 in.
WARNING: The plenum is highly. radio' active.
As the plenum is raised and the shielding layer of water is reduced in f
thickness, the radiation level will increase in the area above. Clear the area of all non-essential personnel.
Inso'far,as possible, work from shielded or remote locations.
It is anticipated that oEly the crane operator will be needed while the plenum is being noved.
11.5 Hoist the.plenu= clear of the indexing fixture.
Verify clearance over RV flange.
Keeo the crane operator advised. Place the plenum in the inter-(
nals storage stand assenbly or the shallcw and of the refueling canal, as desired.
Disengage latches; hoist the lifting assembly clear.-
l 11'.6 Hoist the pendants te a storage area.
l 11.7 Receve the inde::ing fixture in accordance with Section 10.0.
i'i:.
.'2 n._
pae 3/11/73 L
')
12.0 REPLACE"ENT OF THE PLEND! - h*ET METHOD Initials
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12.1 Place the indexing fixture.in accordance with Section 9.0.
12.2 Movs fuel handling bridges to the opposite end of-the refueling canal frc: the plenum and park clear of the RV.
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12.3 Attach the internals handling adapter, pendants, and spreader ring (See no:a :f 5:ep 15.3.) to inboard holes in the pads of the head and internals handling fix:ure.
Match all elements as indicated by the match-carks.
Latches should be closed; : hey will open and close automatically during la:ching operations.
Penfan:s must be in position for piene lift.
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NOTE:
Nylon ropes =ay be tied to the latches f : ease of re ote unlatchin;, if desired.
12.4 Hoist :he lifting asse bly cter the plenum with :he auxiliary hook oriented c: the east of the cain heck.
Match the pendants to :he corresponding lifting lugs.
(See " Note" of Step 11.'.)
L:w'er the lifting asse bly so as to engage the la:'h of each pendant to the correspending plenue lif:ing lug.
NOTE:
Use crane speed cf less than six inches per ninu:e while vithin one foe: ef ne:21-to-netal contac:.
12.5 Holst.the plenum over :he 17 and align the bridge and trolley with their respe::ive alignment marks for plenun replacenen:.
7ari.
elearance over :he iW fl..ye.
Keep the e r. ne.
.i:or adrised.
erien:
P..;c 23 Ti'- 5 e 1
- .. : s. '.'. -
- .c. v
-. ~.
the assembly so the assembly axis lines up with the RV axis with the "W" of the plenum assembly towards the west side of the RB and the keyways are aligned with the keys of the indexing fixture.
Lower the plenum to engage the keys in the indexing fixture.
Continue lowering to rest.
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12.6 Working fro: the handling bridge or other convenient location within safe radiation li=its, disengage the latch of each pendant.
12.7 doist the internals handling adapter and pendants to a storage area; remove these fixtures and leave them in the storage area.
12.8 Remove the indexing fixture in accordance with Section 10.0.
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i Page 24 FP-5e!
Date 5/11/:e tie v. 9
13.0 RDIOVAL OF THE PLE?Cf/ CORE SUPPORT ASSDGLY Initials 13.1 Recove the plenus in accordance with Section 11.0 or 15.0.
13.2 Verify that the RV has been defueled and that this procedure is in its correct position in FP-201, Refgeling Operation Sequence of Events.
NOTE:
Steps 13.3 thru 13.15 may be perfor=ed with the refueling canal level two to six inches below the ?.7 flange, if radiation letels vill permit.
13.3-Replace the plent: in accordance with Sectica 12.0 or 16.0 but leave the indexing fixture in place en the RV, flange.
13.4 Park both fuel handling bridges clear of the R" at the shallow end of the refueling canal.
13.5 Place the internals storage stand in a clear spa:e in the deep end of :he canal.
Attchtheinternalsha$dlingextensiontothe 13.6 main hook of the polar crane.
I i
13.7 Attach the head and internals handling fixture :o the internals handlinz extension.
13.8 Attach the internals handling adapter. pendants, and i
i L
spes-_er.issenbly (fea ne:e of Step 15.3.) LO in5 card ho!c-- in p:id:s of
'..-I..::. : te rna 1.
- d!in; f i:::urs.
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e I i me n t.-.
-2:..I c.,ted b -
. ;. h-:... - : : ; f. f t P. i c -
FP-501 9 ate 5/11/78 9
1 of the core support assembly.
Position the pendants on the spreader ring for the core support assembly lift.
(See note of Step 15.3.)
13.9 Attach the indexing fixture pendants to the outboard holes in the lifting pads of the head and internals handling fixture. Match each pendant to the corre-
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sponding marked hole.
NOTE:
The "A" pendant leg should be positioned on "W" lifting lug on core support assembly.
The distances between eyebolt shafts should be "A" - 2.856 in.; "B" - 2.070 in.; and "C" - 2.658 in.
13.10 Open pendant Iceking bars on che indexing fixture.
13.11 Hoist the lifting assembly and position it over the RV with the auxiliary hook oriented east of the main hook.
Rotate to proper orientation so as to match each indexing fixture pendant to its corresponding i
marked socket on the indexing fixture and align =ent marks for the bridge and trolley positions are cor-rectly aligned.
NOTE: A fuel handling bridge ray be brought up temporcrily for use as a working platfor: (for Steps 13.12 thru 13.1S).
Work from an area which is being monitored for redistien safety. Maintain menitering during transfer of the internals.
13.12 Lower the asse:bly to engage the four keyways of the spreader ring with the four keys cf the inde::ing fix-ture.
(Sec note of Step 15.3.)
The indexing fixture t
j pendant s will ride over the lif ting pendant pads while i
j lowering.
Ga.de the rod seetten e~ each indexing fix-i L
Pa e 26 FI'-f c !
Date 5/ l ' "i g
Rev. 9
ture pendant into its slot in the indexing fixture lifting pad. Guide the pendants on the spreader ring as necessary.
(If used, see note of Step 15.3.)
13.13 Continue lowering until lifting assembly cooes to rest.
13.14 Engage the internals handling adapter latches, i
13.15 Close the lockina bars on the internals indexing f ixtur e..
13.16 Floed the refueling canal to an elevation of 154 ft.,
6 in. if not already at this level.
CAUTIO:': This next hoist is near maxinus for the polar crane.
13.17 Holst the core support assembly until the upper ends of the control rod guide tubes are approx 1=ately flush with the top of the indexing fixture.
Stoo the heist.
13.18 Usin; the long-handled teal (35 ft. uith hook attsch-ment'., rotate the lockin; bars to release the align-men:
.ad lock on the indexing fixture.
Upen cc ple-tien.
?ve the bridte to the shallev end of the fuel trar.:.r canal.
k'A R '" ':
a.
Approximataly 11 ft. of the plent= ': Ore support assembly will be exposed durinz transfer to the internals starage stand.
Radintion levels will he high.
b.
Clear the rea of all personne] execr: t h e e r:t..,.
o p e r.it o r.
Po 7
- - 01 ie.
- jj ; j,,
3 o
13.19 Raise the assembly until the in-core instrument guide tubes will clear the reactor flange.
Keep the crane operator advised.
13.20 Move the assembly across the reactor flange, avoid-ing impact with the alignment studs.
i 13.21 Move the asse=bly into position over the internals storage-stand.
Lower until the core support assembly comes to rest on the stand.
Radially orient the core support asse:bly to position the shock pads over the s'tand cutouts.
13.22 Release the internals handling adapter latchee.
Personnel cust re-enter the area for this and suc-ceeding operations. Monitor the radiation level.
If convenient, =ove one of the fuel handling cranes into position as a working platform.
I 13.23 Hcist the internals handling. adapter, pendants, j
sprezder ring, the indexing fixture and its pen-dants to a convenient storage area.
NOTE: The fuel transfer canal water level may be lowered, as necessary, to permit access to the RV interior. Minimize lowering; the water serves as a radiation shield against the radiation sources in the core support assembly and the RV.
-s Page 28_
l P-Vil Date 3/P,/78 Rev. 6 o
14.0 REPLACDfENT OF THE PLD;1".f/ CORE SUPPORT ASSDi3LY Initials t
r 14.1 Attach the internals handling adapter, pendants, and spreader assembly (See note of Step 15.3.) to tha inboard holes in the pads of the head and internals handling fixture. Match all elements as indicated by the catch-marks.
Latches should be closed; they will opea and close automatically during latching opera-ticas. Pendants cust be in position for the core support assembly lift.
(See note of Step 13.9.)
14.2 Attach the indexing fixture pendants to the outboard holes in the lifting pads of the head and internals handling fixture. Match each pendant to the corre-sponding marked hole.
Attach the indexing fixture and close locking bars.
Open the guide stud latches.
14.3 Verify that the water level in the fuel transfer canal is at elevation 154 ft., 6 in.
14.4 Move the fuel handling bridges to the shallow end of the refueling canal and clear of the plenue/ccre support assembly.
14.5 Position the lifting assembly over the plenue/ core suppert assembly.
F.:tsIte the lifting assembly te match up the lifting lugs and pendant.* (sane as Step 13.11 or 17.10).
I'. 4 e 9 FP-501 bite 5/11/78
..v.
9
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19.2 INSTALLATION OF SPECIMEN CAPSULES AND/OR DUMMY CAPSULES 19.2.1 Initial Conditions 19.2.1.1 Fuel t-
.sfer canal water level between six inches below RV flange and norual refueling depth according
-to the level of radiation, 19.2.1.2 RV head and plenum assembly re=oved from the RV.
i 19.2.1.3 The, storage container located in the deep end of g
the refueling canal.
19.2.1.4 New and/or dc==y specipen capsules iccated in a storage container.
{
19.2.2 Install the surveillance speci=en guide tube (guide f
t tube) by perforcing the following steps:
i 19.2.2.1 Lower an underwater television ca= era through a vent l
l valve exercise port adjacent to the desired surveil-i lance holder tube.
This will provide renote viewing i
I capability to ensure that the guide tube enters the I
surveillance holder tube, i
19.2.2.2 Attach a chain fall and 0 to 1,0C3 lb. load cell to j
i a suitable lifting hoist. 1-lich the candral inserted into the guide tube, attach both the mandrel and guide tube cables to the load cell, position the guide tube over the desired surveillance h:1 der tube, and le.cer the guide tube through the pcre in the core support assembly (CSA) f ange.
19.
2.3 Observe the load eell for c.n indication of when ti.e guide tube i., fully b.stecrec in'the surveil-ic we holder tm.t.
I'.ip 39 ri ~ 1 D.i t u 6/15/75 Rev. 10
19.2.2.4 Lower the bail of the guide tube away from the reactor core.
Disconnect"the guide tube cable from the load cell and tie off ta a convenient point.
-19.2.2.5 Remove the mandrel from the guide tube and store.
l 19.2.3 Attach the specimen handling tool (handling tool)
I to a speciman capsule as follows:
19.2.3.1 Attach the handling to,ol~to the load cell.
19.2.3.2 Record the weight of the handling tool.
19.2.3.3 Ensure that the push tube is in the retracted y
position by raising the grip to the upper posi-l tion and inserting the bal-lok pin through the grip and the outer tube.
19.2.3.4 Lower the handling tool onto the specinen capsule,
(
insuring proper axial position.
NOTE: With the bal-lok pins on the handling tool positioned nearest the operator, the peinted or longer side of the end cap wedge will be on the operator's lef t.
19.2.3.5 With *he handling tool properly positiened, re=ove the bal-lok pin, lower the ; rip to the lower posi-tien, and install the bal-lok pin through the grip and the outer tube.
19.2.3.6 Raise the handlin; tool and observe an increase of 30 to 50 lbs. gruater than that noted in Step.
19.2.3.2.
Record the weight Of the.1 ailing coal and specimen ca;3ule.
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Page 40 i?-301 pate 6/] 5 / 7 -
Rev. 10
=
14.6 Align keys in indexing fixture with keyways in core
(
support asse bly and lower the lifting assembly until the internals h.andling adapters come to rest on the lifting lugs.
14.7 Ensure the internals handling adapter latches are engaged.
CAUTION:
The lift of the core support assembly /plenu= is near axi=un for the polar crane.
WARNING:
a.
Approximately 11 ft. of the plenum / core. support assembly will be exposed during transfer to the internals storage stand.
Radiation levels will be high.
b.
Clear the area of all personnel except the crane cperator.
14.8 Hoist the asse:bly over the RV vi:h the same orienta-tion as when removed.
(See 5:e; 13.11.) Verify clear-i ance over the RV flange.
Kes; the crane operator advised.
Avoid impac: wi:h the align =an: s:uds.
Monitor clear-ance over :he ?" flange.
14.9 Orient the an.- of the indexin; fixture with the axis of the Over the RV wi:h '~;" :f the plenu=/
core supper;.-senbly dire::ei :cwards the west side of the P3.
.:ition the indexing fixture guide stud le '.e over ;... guide studs 2n; icwer the indexing fixture to :-.-: on the RV flange, then cease lowering.
P. r., i.
tr-Datc
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14.10 Using the long-handled tool (35 f t. vith hook
/
attachment), rotate the guide stud locks into locking position and latch.
6 NOTE:
It is not necessary to lock the guide studs to the l
i indexing fixture when lowering the plenum / core suppor*
f i
assembly.
/
14.11 Continue lowering the plenum / core support assembly until the assembly comes to rest in place.
14.12 Disengage the latches on the internals handling a"dapt ers.
Rotate 'the locking bars at the top of the indexing fixture to the open position (if I
previously locked).
f 14.13 Hoist lifting ecuipment clear of the RV.
CAUTION:
The indexing fixture lif ting pendants must be guided clear of the lif ting pads (using long-handled tool).
i 14.14 Rcrig the lifting assembly (for the plenum lift) and i
renove the plenum in accordance with Section 11.0 or 15.0, when recuired (i.e., for fuel loading).
14.15 Replace the plenum in accordance with Section 12.0 or 16.0, if net already in place.
14.16 Renovo the indexing fixture in acc rdance with Section 10.0.
1 P ine 11 FP-o' Date 3/3/ 3
^
ne v.
6
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15.0 REMOVAL OF THE PLE RIM - DRY-METHOD Initials
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NOTE: The dry method is used when radiation levels permit and the refueling canal water level is two to six inches below the RV flange.
15.1 Place indexing fixture in accordance with Section 9.0.
NOTE: This step is optional.
/
15.2 Move,tuel handling bridges to the opposite end of the refueling canal from which the plenu is to be placed,(park clear of RV).
15.3 A'ttach the internals handling adapters and pendants to the inboard holes in the pads of the head and internals handling fixture.
Match all elements as indicated by match-marks.
Latches should be closed; they will open and close automatically during latch-ing operations.
Shims should be in place and safety i
vired.
NOTE:
If desired, the spreader ring may be used for this method, but it is not necessary.
15.4 Move the assembly into position orar :he reactor cen:c with the auxiliary hook of the polar crane ori.n cd to the east of the main hock.
Orient the asac.bly so the axis coincides with the.V/ axis and align.ent marks for the bridge and trolley positions are correctly aligned.
Lower the assemb":: so as to enge:e the latch of each pendant (see ":. te" below) with the corresponding plenum liftin; 12g.
No n :.The ".i" pendant of the lifting :. umbly should engage the "Y" axis liftfug lug of the nit:u.
The distances between Page T' FP-%1
!) it.-
' i 1/ b Rev. 4
~ _
the' eyebolt shafts should be:
"A" leg - 2.828 in., "3"
't leg - 2.418 in., and "C" leg - 2.500 in.
WARNING:
The plenum is highly radioactive.
As the plenum is raised and the shielding layer of water is reduced in thickness, the radiation level will increase in the area above.
Clear the area of all non-essential per-sonnel.
Insofar as possible, work from shieloed or remote locations.
It is anticipated that only the cra'ne operator will be needed while the plenun is being moved.
15.5 Hoist the plenum clear of the indexing fixture.
Verify clearance o*ter RV flange.
Keep the crane operator advised.
Place the plenum in the internals storage stand assembly or the shallow end of the refueling canal, as desired.
Disengage latches; hoist the lifting assesbly clear.
15.6
.Holst the pendants to a storage area.
15.7 Re=ove the indexing fixture in accordance vich i
4 Section 10.0, if rc uired.
1 1
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o 16.0 REPLACE!E;T OF THE PLEh*LN - DRY METHOD Initials e
NOTE: The dry method is used whett radiation levels permit and the refueling canal water level is two to six inches below the RV flange.
16.1 Place the indexing fixture in accordance vi.th Section 9.0.
i 16.2 Move the fuel. handling bridges to the opposite end of the refueling canal fro: the plenum and park clear,of the RV.
16.3 Attach the internals handling adapter and pendants to the inboard holes in the pads of the head and internals handling fixture. Mr.tch all elenants as indicated by the match-carks.
Latches should be closed; they will open and close automatically during latching operations.
Shi=s and safety wires should
\\
be in place.
NOTE:
If desired, the spreader ring may be used for this methed.
':: it is no: necessary.
16.4 Holst the lif ting assently over the plenu= with tha auxiliary hook of the p:'ar crane oriented to the east of the main hook. Ma:ch the pendants :: the correspending lifting lup.
(See "?!ote" ;f 5:a; 11.'..)
l 1
' o.cc r c '.e lif ting asse bly se as to engace the 1 ::h of each pendant to the ::::c:.ponding plen : lifting lug.
';0TE:
'J s. erano speed ei ~ s.<a than six ine!.cs per minute while
'4..in one foet cf rctal-to-metal e :. :.
(
l'..;e 33 l' ~id i
.*.s O
16.5
' Hoist the plenum over the RV and align the bridge and 7
trolley with their respective align =ent marks for plenum replace =ent.
Verify clearance over the RV flange. Keep the crane operator advised.
Orient the assembly so the assembly axis lines up with the RV axis with the "W" of the plenum assembly towards the
/
west, side of the R3 and the keyways are aligned with the keys of the indexing fixture.
Lower the plenum to enga,ge the keys in the indexing fixture.
Con-t'inue lowering to rest.
16.6 Disengage the latch of each pendant.
16.7 Hoist the internals handling adapter and pendants to a storage area; remove these fixtures and leave them in the storage area.
16.8 Remove the indexing fixture in accordance with i
Section 10.0.
t o
P.tne 3?.
FP-501 Date 3/23/78 Rev. 7
17.0 REMOVAL OF CORE SUPPORT ASSEMBLY WITHOUT PLENUM Initials r
17.1 Remove the plenum in accordance with Section 11.0 or 15.0.
The plenum must be placed in the shallow end of the refueling canal and the indexing fixture may be in place on the RV flange, if desired.
NOTE: This assumes that defueling is complete.
/
17.2 Verify.that the RV has been defueled and that this I
p'rocedure is in its correct position in FP-201, Refueling Operation Sequence of Events.
NOTE:
Steps 17.3 thru 17.14 may be performed with the refueling canal level two to six inches below the RV flange, if radiation levels will per=it.
17.3 Park both fuel handling bridges clear of the RV
\\
at the shallow end of the refueling canal.
17.4 Place the internals storage stand in a clear space in the deep end of the canal.
17.5 Attach the internals handling extension to the main hook of the polar crane.
17.6 Attach the head and internals handling fixture to the internals handling extension.
17.7 Attach the internals handling adapter, pendants, and spreader assembly to the inboard holes in the pads of the head (See note of Step 15.3.) and internals handling fixture.
!atch all elements as indi:sted by match-marks for lift of the eOrc support asect'.ly.
Positten the i
i Pa;;i 35 FP-301 Date T/11/78 Rev. 9
pendants on the spreader ring (See note of Step 15.3.)
(
for the core support assembly life.
NOTE:
Steps 17.8 thru 17.14 and Step 17.17 are optional.
17.8 Attach the indexing fixture pendants to the outboard holes in the lifting pads of the head and internals handlin; fixture.
Match each pendant to the corre-sponding =arked hole.
NOTE:
The "A" pendant leg should be positioned on the ""
lifting lug on the core support asse=bly.
The distances between eyebcit shafts should be the same as in Step 13.9.
17.9 Open pendant locking bars on the indexing fixture.
17.10 Hoist the lifting asse:bly and position it over the RV.
Rotate to proper orientation so as to =atch each indexing fixture pendant to its correspondin;
\\
marked socket on the indexing fixture.
NOTE: A fuel handling bridge may be brought up te:porarily for use as a working platform (for Steps 17.11 thru 17.17).
"ork from an area which is being tonitored f : radiati:n safety. Maintain conitoring during transf er ef the in ternals.
17.11 Lower the assembly to engage the four keyways cf the spreader ring wit'.- the four keys of the indexin; fixture.
The indexin; fixture pendants will ride over :he lif ting pendant pads while lowering.
Guide the rod section of each indexing fixture i
\\
I*
hb b'= 'ei 4 {
g.
e g
t pendant-into its slot in the indexing fixture lifting pad.
Guide the pendants on the spreader ring as necessary.
17.12 Continue lowering until the lif ting asse=bly comes to rest.
17.13 Engage the internals handling adapter latches.
17.14 Close the locking bars on the internals indexing fixture.
17.15 Flood the refueling canal to an elevation of 154 ft.,
6 in. if not already at this level.
CAUTION:
- This next hoist is near maxinu: for the polar crane.
17.16 Hoist the core support assembly until the upper ends of the. control rod guide tubes are two feet above vessel flange if indexing fixture is not used.
Step the hoist.
17.17 Using the long-handled tool (35 ft. with hook attachment), rotate the locking bars to release the alignment stud lo:k on the indexing fi:::ure.
Cpen comp;ction, : re the bridge to the sha' lev end of th, fuel trare'er canal.
i I
e.t.:e Ti FP #01
'.it e./jl/in
- . s *.*. Y
17.18 Raise the assembly until the in-core instrument guide tubes will clear the reactor flange. Keep the crane operacor advised.
WARNING:
a.
Approxi=ately 11 ft. of the core support asse=bly will be exposed during transfer to the internals storage stand. Radiation levels will be high.
/
b.
Clear the area of all personnel except the crane operator.
17.,19 Move the assembly across the reactor flange, avoiding i= pact with the align =ent studs.
17.20 Move the assembly into position over the internals storage stand. Lower until the core support asse:bly comes to rest on the stand.
Radially orient the core support asse=bly to position the shock pads over the stand cutouts.
i 17.21' Release the internals handling adapter latches.
Personnel cust re-enter the area for this and suc-ceeding operations. Monitor the radiation level.
If convenient, move one cf the fuel handling cranes into position as a working platfera.
t 17.22 Hoist the internals han'dling adapter and pendents s
i to a convenient storage area.
NOTE:
The fuel transfer canal water level ::y be lowered, as necessary, to per it access to the RV interior. Minimize lowering; the water serves as a radiatica shield a;ninst the radiation sources in the core support assembly and 1
the RV.
)
Page 37a
??-501 Date 5/11/75 Rev. 9 i
18.0 REPLACDENT OF CORE SUPPORT ASSDiBLY UITHOUT PLEND!
Initials
/
18.1 Attach the internals handling adapter, pendants,' and spreader assembly (See note of Step 15.3.) to inboard holes in pads of head and internals handling fixture.
Match all elements as indicated by match-marks.
Latches sho91d be closed; they vill open and close auto =atically during latching operations.
Shims must be removed fres latch boxes.
Pendants must be in position on the spreader ring for.the core support assembly lift.
18.2 Attach the indexing fi::t re pendants to the outhcard
]
holes in the lifting pads of the head and internals handling fixture. Mate,h each pendant to the corre-sponding marked hole. Attach the indexing fixture and close locking bars.
Open the' guide stud latches.
18.3 Verify that the water level in the fuel transfer canal is at eleration 134 f t., 6 in.
18.4 Move the fuel handling bridges to the shallev and of the refueling canal and clear of the RV.
18.5 Position the lifting assembly over the plenue/cere support assembly. Rotate the lifting assembly t:
match up the lif ting lugs and pendants (same as Step '13.11 or 17.10).
18.6 Align keys in indexing fixture with keyways in core support assembly and lower the lifting assen51y until the internals handling adapters come to rest on the lifting lugs, l'. i... 171-Fi'- $0 !
- v ~~ll/78 m_
18.7 Ensure the internals handling adapter latches are engaged.
i WARNINO:
'a.
Approx 1=ately 11 ft. of the core support assembly will be exposed during transfer to the internals storage stand.
Radiation levels will be high.
b.
Clear the area of all personnel except the crane operator.
18.8 Hoist the assembly over the RV with the same oriene.ation as when recoved. Verify clearance over the RV flange. Keep the crane operator advised. Avoid impact with the alignment studs.
Monit:: clearance over the RV flange.
7 18.9 Orient the axis of the indexing fixture with the axis :f the RV, over the RV.
Position the indexing i
fixture guide stud locks over the guide studs and lower the indexing fixture to rest on the RV flange, then taase lowering.
18.10 Using the long-handled tool (35 f t with hook atta:hnent), rotate the guide stud locks into locking position and latch.
NOTE:
It is not necessary to lock the guide studs :: :he
' indexing fixture when lowering the core support assenbly.
18.11 Continue lowering the plenu=/ core support assembly until the assembly cones to rest in place.
I l'are lie F '-iill Da t.,
'11/78
)
1
~
18.12 Disengage the latches on the internals handling
[
adapters. Rotate the locking bars at the top of the indexing fixture to the open position (if previously locked).
18.13-Hoist lifting equipnent clear of the' RV.
CAUTION:
The indexing fixture lifting pendants must be guided clear of the lif ting pads (using long-handled tool).
18.14 Replace the pient: in accordance with Section 12.0 g
or 16.0.
18.15 Remove the indexing fixture in accordance with Section 10.0.
l fane 3 h:
F P- ?.' l U.n e 3/8/ie, i:cv. 6
o 19.0 INSTALLATION OF SURVEILLANCE AND RADIATION SPECIMEN CAPSULES 19.1 SPECIAL PRECAUTIONS Initials
'19.1.1 '
Locate a suitable storage container such that the required operation may be performed with minimal radiation exposure to personnel.
19.1.2 The closure tool assembly (closure tool) and specimen
/
1 handling tool should be stored in a suspended manner.
I 1
This will prevent damage to the lower ends of these tools.
19.1.3 Extreme caution must be exercised when installing the specimen capsules and closure assemblies to assure proper azimuthal orientation. When installing the lower specimen capsule or the closure assembly, the
+
pointed (longer) side of the end, cap wedge =ust be on the operator's right whilu viewing the surveil-4 lance holder tube from the center of the RV.
L' hen installing the upper specimen capsule, the pointed (longer) side of the end cap wedge cust be on the operator's lef t uhile viewing the surveillance holder tube from the center of the RV.
Refer to Figure 1.
19.1.4
_To permit small vertical movements of the specimen capsules and closure assembly, a chain hoist shall be located between the hoist hook and lead ceII.
19.1.5 During all eperations in which the closure as.ser.51y
~
is attached to the closure tool, the balancer should be adjusted to minimize axial Icading or the closure
'loekingirtrew by the closure tool terque shaft.
. p if e 18 l'15-501 Date 6/I5/73 1:ev. 30 a
19.2.4 Raise the handling tool and specimen capsule suffi-l ciently to clear the storage container.
Verify and I
i reccrd the specimen capsule serial nu=ber per Step 19.2.12.
19.2.5 Position the speci=en capsule directly over the guide tube. Assure proper azimuthal orienta-r
~
tion,cf the spec 1=en capsule per Step 19.1.3 as foll:ws:
i 19.2.5.1 'For the LOWER specimen capsule, the bal-lok pins en
{
the handling tool -should be on the side of the tool i
nearest phe center of the reactor core.
19.2.5.2 For the UPPER specimen capsule, the bal-lok pins on the handling tool should be on the side of the tool away from the center of the reactor core.
h 19.2.6 Lower the specimen capsule into the surveillance
[
holder tube. Maintain proper azimuthal orientation I
of the specimen capsula per Step 19.2.5 above.
19.2.7 Unlatch the handling tool from the speci=en capsule as fellows:
19'.2.7.1 Recove the bal-lok pin and raise the grip to the upper position; insert the bal-lok pin through the grip and outer tube.
19.2.7.2 Raise the handling tool six to 10 in.
Observe the lead cell reading equals d,at obtained in Step 19.2.3.2.
19.2.7.3 Renove the handling tool from the guide tube.
F....
J. 3 FI'- 501
. ::e '-13/7i F.e'.. 'u
I 19.2.8 Repeat Steps 19.2.3 thru 19.2.7 for the specimen capsule that is to be installed in the upper posi-tion in the surveillance holder tube.
19.2.9 Rem 6ve the handling tool from the load cell and i
f store.
NOTE: To prevent damage to the latching fingers of the handling tool, the tool must be stored in a suspended
,I I
i
- pcsition, j
i 19.,2.10 Install the closure assenbly per Section 19.1 cf this procedure.
19.2.11 Install the mandrel in the guide tube. Recove and store the guide tube and candrel as an asse:bly.
19.2.12 Record the following:
?
a.
Speci=en Capsule and Closure Assembly iI l
Serial Numbers b.
Acicuthal locatica of specimen capsules and 1-closure asse=bly in 17.
i
'Jertical location of specimen capsules in c.
surveillance holder tube, t
19.2.13 Repeat Steps 19.2.2 thru 19.2.12 for the remaining surveillance holder tub'es.
19.3 RCf7.*.;i. OF SPECDfEN CA3571I5 A.'!D/OR DUICfY CA?!?' E5 19.3.'
Initial Canditions 19.3.1.1 Fuel transfer canal wa:e level between sin inches below TJ. flange and nor:21 refueling depth according to the level of radiction.
h'. J. l. 2 RV !. :.2.. nd n i enum assenb !. removed from the EV.
I'...
-1
^- 5ii l e./ I '
19.3.1.3 The storage container located in the deep end of the refueling canal.
19.3.2 Install the guide tube per Step 19.2.2 of this procedure.
I 19.3.3 Remove the closure assembly per Section 19.5_of thi,s procedure.
19.3.4 4tta'ch the handling tool to a suitable hoist with a load cell located between the tool and hoist hook.
l Recor.d the tool weight.
f 19.3.5 Insure that the push tube is in the retracted posi-c.:n by raising the grip to the upper position and inserting the bal-lok pin through the grip and the outer tube.
19.3.6 Position the handling tool over the surveillance holder tube. Assure proper axial orientation per j
i Step 19.2.5.
Lower the tool and attach it to the j
upper spect=en capsule by perforcing Step 19.2.3.5 of this procedure.
19.3.7 Raise the handling tool six to 10 in.
Observe an increase of 30 to 50 lbs. greater than that noted in Step 19.3.4.
19.3.S Recove the spacir.n capsule frc: the surveillance holder tube, p' ace it in a sui--ble container, and disconnect the handling tool free the specimen cap-sule per Step 19.2.7 of this procedure.
Verify specimen cap le serial number per Step 19.3.10.
E'W 43 i i -;.
v.i t e nfi5/;3 1:ev. 10
19.3.9 Repeat Steps 19.3.6 thru 19.3.8 for the lower specimen capsule.
19.3.10 Record the following:
a.
Specimen Capsule Serial Number b.
Axial location in reactor from which removed.
a c.
Vertical location in surveillance holder tube i
/
from which re=oved.
I l
d.
Position in storage container (if applicable).
r 4
e.
Disposition if permanently recoved from RV.
19.3.11 final Conditions i
19.3.11.1 The required specimen capsules and/or dummy capsules have been re=oved from the surveillance holder tube.
19.3.11.2 The specinen capsules are stored in a suitable storage or transfer container.
19.4 INSTALLATION OF CLOSURE ASSD13LY i
NOTE:
Have Quality Control Inspector observe and sign off steps of Section 19.4.
19.4.1 Initial conditions 19.4.1.1 The closure tool is suspended from a suitable hoist in the following =anner:
Hoist hook, a 1-ton chain hoist, a 0 to 1,000 lb. load measuring device, and closure tool.
In addition, the balancer will be suspended fro: the hoist houk and connected to the torque shaft of the closure tool.
19.4.1.2 The hydraulic pump assembly is lccated on the fucl handling bridge or near the RV flanpe with the hydraulic hoses connected to the hydraulic cylinder on the closure tool.
19.4.1.3 The closure assembly is located in t!. s torage ei u-tainer in :1.e deep end of t!m refutL:
ennal or
- c. up ). J t, tae e!.ture tool.
P.tr.e - 4.
Fi'- M I P-t e 6/13/ :
Rev. 10
9 19.4.1.4 The guide tube is inserted in the surveillance holder tube and the mandrel has been removed.
19.4.1.5. Two specimen capsules or specimen and du 2y capsule combinations have been installed in the surveillance holder tube.
19.4.1.6 The,. underwater television camera is lowered through
.a vent valve exercise port to view the oval inspec-tion port located near the top of the surveillance holder tube.
~
doupletheclosuretooltotheelescreassemblyby 19.4.2 performing the f:llowing steps:
NOTE:
Uf the closure assembly is already attached to the closure teol, proceed to Step 19.'.3.
19.4.2.1 Verify.that the inner capsule latch asse:bly is rotated to the " Unlock" position.
19.4.2.2 Raise the inner capsule latch assembly to the elevated position by turning the selector valve to the " Collapse Fingers" position and actuating the hydraulic pump i
until 100 psi is =aintained on the pressure gauge.
19.4.2.3 Position the closure tool over the closure assembly.
19.4.2.4 Observe and record the weight of the closure tool.
19.4.2.5 ' Slowly. lower the closure tool onto the closure assembly.
Observe the springscale fer c:al con-tact.
19.4.2.6 k'ich the chain fall, raise the closure tool until it is cicar of the closure assembly.
The springscale reading should be the same as that recerded in Step 1"..
2.4.
i'..
.e. 4 )
til'- w !
Ihtr 6 / I ';/ M 1:e v. 10
~l 1
19.4.2.7 With the chain fall, slowly lower the closure tool until a springscale reading of 50 to 75 lbs. less than that recorded in Step 19.4.2.4 is achieved.
19.4.2.8 Rotate the entire closure tool clockwise until ic drops approxi=ately five-eighths of an inch into the slots of the closure assembly finger latch asse=bly.
/
Obse,rve an increase in the closure tool weight.
NOTE:
If the closure tool cannot be rotated clockwise, it is an indication that it is properly aligned with the clo-sure assembly finger latch assembly.
19.4.2.9 Verify that the closure tool weight is the same as that achieved in Step 19.4.2.7.
19.4.2.10 Rotate the entire closure tool counterclockvise 90*.
i This will engage the shroud asse;)1y with the cicsure assembly finger latch assembly.
19.4.2.11 Lower the inner capsule latch asse=bly by turning the selector valve to the "Co= press Springs" position and actuating the hydraulic pump until the tool weight is 150 lbs. less than that recordsd in Step 19.4.2.4.
- 19..2.12 Engage the inner capsule latch assembly with the closure asse:bly actuator by rotating the inner ca;-
sule latch assenbly counterclockwise 90' until tha match-carks en the inner capsule la:ch assembly ar.d the outer tube are properly ali;r.2d to " lock".
19.4.2.13 Collapse the fingers of the clesure as.sembly fin;er latch assembly by rotating the suleetion valve to the
" Collapse :-in;crs" position and actuating the hydraulic pump until 101 nsi is maintained on the pressure ;auge.
p,u.
.>.ei rp -
.t t e 6/13/78
.v.
lo e
1 19.4.2.14 With-the chain fall, raise the closure tool with f'
closure assembly attached approximately 12 in.
Observe a closure tool plus closure assembly weight of approximately 16 lbs. greater than that noted in Step 19.4.2.4.
NOTE:
If no increase in weight is observed, the closure assembly i
is not attached and it is necessary to repeat Steps
+
19.4.2.1 thru.19.4.2.14.
19.4.3 Raisegheclosuretoolandclosureassemblyand pos'ition them directly over the guide tube.
Rotate the clos,ure tool and closure assembly to obtain proper azimuthal orientation of the closure asse:bly per Step 19.1.3.
19.4.4 Slewly lower the closure tool and closure asse:bly thrcugh the guide tube and onto the specimen capsule.
i I
Maintain the azimuthal orientation obtained in Step 19.1.3.
Observe the springscale for indication of the elesure assembly bottoming on the spect=en capsu*e.
Continue lowering the hoist until the springscale reading is approxi=ately 100 lbs. less than the cc:-
bined weight of the closure tool and clesure asse bly.
This :peration will assure the closure asse:bly is fully scated on the speci=en capsule.
19.4.5 Additienal confirmation that the closure asse:bly and speciren capsules are properly positioned may be ::de by viewing the aval inspection port of the surveillance
. holder tube.
The believille spring stack should be
- s 47 FP-501
' 15 / N
-x-
- h..-
visible through the inspection p, ort.
If the springs
'~
are not visible, the speciden capsules or closure assenbly are misoriented 180*.
19.4.6 Apply the preload to the closure assembly belleville springs by performing the following steps:
19.4.6.1. Rotate the selector valve to the " Compress Springs"
/
posi. tion and actuate the hydraulic pump until 400 psi is =aintained on the pressure gauge.
. NOTI:,Ihe outer tube will' translate. upward approx 1:stely one inch.
19.4.6.2 Lowar the torque shaft onto the locking screw of the closure assembly.
Rotating the torque shaft cleck-wise will assist in proper engagement of the torque shaft and locking screw hex.
19.4.6.3 Rotate the torque shaft and locking screw counter-clockwise until the tapered shoulder of the locking screw contacts the e=ergency escape device.
NOII:
Ten to 17 revolutions of the torque shaft will be required and should be accomplished by hand without the aid of a i^
wrench. Maxi =un free running torque should not exceed 5 ft-lbs.
i i
19.4.6.4 Verify that 400 psi is maintained on the pressure
?
gcupe and torque the torque shaft and locking screw to 1: ft-lbs. countercicekwise.
19.'.7 Unceuple the closure tool from the closure asse:bly by performing the following steps:
l l
Pa c.e 43 FP-Sul
- '.s t e >'!5/78 re..
.0
l.
19.4.7.1 Rslieve the pragsure on tha hydraulic systa=.
Observe by viewing with the television camera that no relaxation of the believille springs occurs.
19.4.7.2 Rotate dhe selector valve to the " Collapse Fingers" position and actuate the hydraulic pu=p two or three s tr'okes.
19.4.7.3 Rotate the entire closure tool 90* clockwise against the hardstop.
19.4.7.4 With the chain fall, raise the closure tool approxi-
=ately 12 in.
Observe that the closure tool weight approxicately equals that obtained in Step 19.4.2.4.
19.4.8 Raise the closure tool from the guide tube.
Observe the springscale reading for possible =echanical inter-ference.
19.4.9 Confir that the closure assembly is properly latched by viewing with the television ca era the upper end of the surreillance holder tube from a near hori::ntal position.
The closure assenbly is properly latched and i
seated if the upper:est part of the surveillance helder tube is spprox1=ately centered in the 3/3-in. gr::ce
[
of the fin:er latch asse=bly.
19.. 10 Final Cc-di:10ns 19.a.10.1 The eles':re assenbly is installed in the survoi'1:2:e holder :che.
x l'a.
- l. "
.tv n./i3/78 IJ
19.5-RDIOVAL OF CLOSURE ASSDSLY 19.5.1 Initial Conditions 19.5.1.1 The closure tool is suspended from a suitable hoist in the following manner:
Hoist hook, a 1-ton chain hoist, a 0 to 1,000 lb. load ceasuring device, and closure tool.
In addition, the balancer will be suspended from the hoist hook and
/ connected to the torque shaft of the closura teol.
19.5.1.2 The hydraulic pu=p asse=bly is located on the fuel handling bridge or near the RV flange with the hydraulic hoses connected to the hydraulic cylinder on the closure tool.
19.5.1.3 The guide tube is inserted in the surveillance holder 3
tube and the mandrel has been removed.
19.5.1.4 The underwater television camera is lowered threugh i
a vent valve exercise port to view the oval inspe: tion port located near the top of the curveillance holder tube.
l.-
19.3.2 Couple the closure t: 1 to the closure asse:bly by perferring the fell wing steps:
I 19.3.2.1 Verify that the inner capsule latch assembly is rotated to the " Unlock", position.
19.5.2.2 Raise the inner capsule latch aesenbly to the elevated
-positica by turnin; the selector valve to the "::11 apse Fin;ars" positien and actuating tne hydrauli: ;un; until i
100 psi is maintained en the pressure gauge.
8 19.5.2.3 Positien the closure tecl over the guide tube.
4 i
19.5.2.4 Observe and record the weight of the closure tec1.
l 4
s_
r
..x $d EP-501
'.a r f./J 5/7S J
1.e v. 10
19.5.2.5 Slowly lower the closure tool through the guide tube f
and ento the closure asse=bly.
Observe the spring-scale for closure tool contact.
19.5.2.6 With the chain fall, raise the closure tool until it is clear of the closure asse=bly.
The springscale reading should be the sa=e as that recorded in Step 19.5.2.4.
19.5.2.7 With the chain fall, slowly lower the closure tool until a springscale reading of 50 to.75 lbs. less tha'n that recorded in Step 19.5.2.4 is achieved.
19.5.2.8 Rotate t,he entire closure tool clockwise until it drops approxi=ately five-eighths of an inch and into the slots of the closure assenbly finger latch asse=bly.
Obserce an increase in the closure tool weight.
f NOTE:
If the closure tool cannot be rotated cicckrise, it is I
an indication that it is properly aligned with the clo-l sure asse=bly finger latch asse=bly.
g 19.5.2.9 Verify that the closure tool weight is the sa=e as that achieved in Step 19.5.2.7.
19.5.2.10 Rotate the entire closure tool counterclockwise 90*.
This will engage the shroud assembly with the closure asse::ly finger latch assenbly.
19.5.2.11 Lowcr the inner capsule latch assembly b, turnin; the selecter valve to the " Compress Springs" position and actuating the hydraulic pump until 100 psi is ::intained on the pressure gauge.
s Page 51 FP-501 2.: t e 6/15/78 Ks v.
In
O 19.5.2.12 Engage dhe inner capsule latch asse:bly with the f'
closure asse=bly actuator by relieving the-pressure on the hydraulic system and rotating the inner cap-sule latch asse:bly counterclockwise 90*.
The match-marks on the inner capsule latch assembly and the I
outer tube should be aligned.
I i
19.5.3 Reli, eve the preload to the believille springs by perfor=ing the following steps:
4 1
19.5.3.1 Actuate the hydraulic pump until 450 psi is main-g I
tained on the pressure gauge.
l 4
1 19.5.3.2 Lower the torque shaft onto the locking screw of the e
I closure assembly.
Kotating the terque shaft counter-clockwise will assist in proper engage:ent of the t
torque shaf t and locking screw hex.
[ !
19.5.3.3 verify that 450 psi is maintained c tha pressure I
\\
gauge and rotate the torque shcft cicekwise.
Record I
the breakaway torque.
]
NOTE: Do not exceed 50 ft-lbs cf torque.
19.5.3.4 Continue to rotate the torque shaft clockuise until it bottoms en the threaded insert.
Record the taximum free-running torque.
50TE: Ten to 17 re.:1utions of the ::rque shaft will be required.
19.5.3.5 Relieve the pressure en the hydraulic syster.
19.5.4 Re: ave the closure assembly fro:..:e surveillance holder tube by perferring the following steps:
i 0
x 5.'
FI'- b D.ite 6/15/78 Rev. 30
19.5.4.1 Rotate the selector valve to the " Collapse Fingers"
/
positien and actuate'the hydraulic pump until 100 psi is maintained on the pressure gauge.
NOTE: The inner capsule latch assembly will translate upward approxicately ene inch with respect to :he outer tube.
CAUTION: Observe the springscale for possible increase in
?
. indicated weight which may result frc: sticking of j
t the closure asse=bly wedge within the surveillance l
holder tube.
Do not exceed 1,000 lbs. on the spring-i scale. Retatien of the closure tool will assist in f
separating :he closure assembly frc: :he specimen capsule.
19.5.4.2 With :he chain fall, raise the closure tool and t
closure assembly apprex1:ately 12 in.
Observe a
that the springscale reading has increased approxi-mately 16 lbs., indica:ing that the closure asse:bly i
has been coupled to the closure tool.
Continue to observe the springscale for indication of eachanical interference.
If techarical interference is nc:ed, l
i rota:e :he closure to:_ in a back and forth canner in an a::e:pt to free :'.e tool train.
19.5.4.3 Slewly remove the cicsure tool and clesure assembly frer :he surveillance h:1 der tube.
Observe the spring-scale reading for an.- gr:ss increase which wculd be indica:ive of mechanical interference.
19.5.4.4 If the elesure asse:bly is to be reinstalled fellew-inc 8;ucinen capsule shuffle, the closure assembly
.. C '.
- I kC f 2,
s' Rev. Io h
I may remain attached on the closure tool.
The hydraulic hoses may be disconnected from the hydraulic cylinder and the closure tool stored from a suitable suspension point.
19.5.5 If the closure assembly is not to be reinstalled in the surveillance holder tube, or it is desired not
/
to 1, eave the closure asse=bly attached to the closure tool, perfor= the following steps:
19.5.5.1 Position the closure asse:bly and closure tool over the designated tube of the specimen capsule storage l
rack (Figure 2),
f 19.5.5.2 Lower the closure asse=bly into the storage rack, maintaining proper orientatica of the end cap wedge l
(Figura 2).
19.5.5.3 Apply the preload to the cicsure assembly belleville g
~
springs by performing Steps 19.4.6.1 thru 19.4.6.4 i
19.5.5.4 L'ncouple the closure tool frc: the closure asse=bly by perforcing Steps 19.4.7.1 thru 19.4.7.4.
19.5.5.5 Raise the closure tool frc: the storage rack.
( serve the springscale f r possible mechanical interference.
19.5.5.6 The closure cool may net, he s:cred as required, dependen: upon operational re:uirencnts.
19.5.6 Final Conditions 19.5.6.1 The closure assembly has been recoved from the surveil-lance holder tube and s:cred, as desired.
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19.6 ALTER *:ATI RD10 VAL OF CLC5TRE ASSDIBLY
/
' 19.6.1 Initial Conditions 19.6.1.1 The locking screw of the closure assembly cannot be rotated clockwise as described in Step 19.5.3.3.
19.6.1.2 The socket on the end of the torque shaft asse=bly of the closure tool has been replaced with the alter-
/
t nate, spanner attachment.
t i.
19.6.2 The closure tool is suspended from a suitable hoist in the following manner:
Holst hook, a 1-ton chain hoist, a 0 to 1,000 lb. load l
teasuring device, and closure tool.
In addition, the balancer will be suspended from the hoist hook and j
connected to the tor:ue shaft of the closure ecol.
I i
19.6.2.1 The hydraulic pump asse:bly is located on the fuel handling bridge or near the RV flange with the hydraulic hoses connected to the hydraulic cylinder i
on the closure tool.
i 19.6.2.2 The guide tube is inserted in the surveillance htider tube and the candrel has been recoved.
19.6.2.3 The underwater televisica camera is lowered through a vent valve exercise port to view the ov.a1 inspe: tion port lecated near the t*:; of the surveillance hcider tube.
19.6.3 Couple the closure teel c: the closure assembly 17 perferring the followin; steps:
19.o.3.1 Verif; that tiic inner capsule latch assembly is rotated to the " Unlock" position.
1 4
1 i
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??-501 1:.e 6 '15 c'!i
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19.6.3.2 Raise the inner capsule latch assembly to the
/
elevated position by turning the selector valve to the "Co'. apse Fingers" position and actuating the hydraulic pump until 100 psi is maintained on the pressure gauge.
19.6.3.3 Position the closure tool over the guide tube.
?
19.6.3.4 Obse,rve and record the weight of the closure tool.
19.6.3.5 Slowly lower the closure tool through the guide tube and onto the cicsure assembly.
Observe the spring-i scale for closure tool contact.
19.6.3.6 With the chain fall, raise the closure tool until it j
is clear of the closure assembly.
The springscale j
reading should be the same as that recorded in Step 19.6.3.1.
19.6.3.7 With the chain fall, slowly lower the closure tool s
~
i
- al until a springscale reading of 50 to 75 lbs. less I
than that recorded in Step 19.6.3..i is achieved.
j t
19.6.3.8 Rotate the entire closure tool clockwise until it l) i drops approximately five-eighths of an inch and into l!
the slots of the closure asse bly finger latch assembly.
Observe an increase in the closure tecl weight.
)
- 1 NOTE:
If the closure tool cannot be retated clockwise, it is 1
1 an indice.: ion that it is properly aligned with the clo-1 sure aescably finger latch assembly.
19.6.3.9 verify that the elosure tool weight is :he same as that achieved in Step 19.6.3.7.
j
\\
Page 56 FP-301 laate r,/1,/ 7:4
~
1:e v. 10 m w
19.6.3.10 Rotatethe entire closure tool counterclockwise 90*.
This will engage the shroud assembly with the closure e
assembly finger latch asse=bly.
19.6.3.11 Lower the inner capsule latch assembly by turning the.aelector valve to the." Compress
- Springs" posi: ion and actuating the hydraulic pump until 100 psi is rain-i tained on the pressure gauge.
19.6.3.12 Engage the inner capsule latch assembly with the
}
i closure asse=bly actuator by relieving the pressure on the hydraulic system and rotating the inner cap-sule latch assembly counterclockwise 90*.
The ec:ch-earks on,the inner capsule latch assembly and the outer tube should be aligned.
19.6.4 Relieve the preload to the believille springs by performing the following steps:
1 19.6.4.1 Actuate the hydraulic pu=p until 450 psi is main-tained on the pressure gauge.
I 19.6.4.2 Lower the torque shaft into the slots of the energency I
escape device of the closure asse=bly.
Rotating ice I'
torque shaft will assist in proper engagement of :he i
torque shaft and energency escape device slots.
19.6.4.3 Verify that 450 psi is main:sined on the pressure.
gaugo and rotate the torque shaft clockwise 90*,
releasing the emergency escape device from the l
l finger latch by shearing the two shear pins thrcug:-
the finger latch and the cr.crgency escape device.
NOTE:
Do not exceed 400 fr-:bs. of torque, i
e i
- 1.,a
- 7
.11
'm 6/15/7e 10
t 19.6.4.4 Relieve the. pressure on the hydraulic system.
19.6.5 Remove the closure assembly. from the surveillance f
holder tube by performing the following steps:
19.6.5.1 'Ro' tate the selector valve to the " Collapse Fingers" position and actuate.the hydraulic pump until 100 psi is maintained on the pressure gauge.
NOT5:
The inner capsule latch assecbly will translate upward approxicately one inch with respect to the outer tube.
CAUTION: Observe the springscale for possible increase in indi-cated we.ight which cay result from sticking of the closure assembly wedge within the surveillance holder tube.
Do not exceed 1,000 lbs. on the springscale.
Rotation of the closure tool will assist in separating I
the closure asse bly fr:: the specimen capsule.
i 19.6.5.2 With the chain fall, raise the cicsure tool and
\\
closure asse:bly approximately 12 in.
Observe that the springscale reading has increased approximately 16 lbs., indicating that the elesere assembly has been coupled to the closure tec1.
Continue to observe the springscale Far indication of mechanical interference.
If mechanical interference is noted, rotate the closure tool in a back and forth manner in an attempt to free the tool trai.
19.6.3.3 Slowly remove the closure tool and closure assembly from the surveillance holder tu're.
Observe the springscale reading for any gress increase which would be indicative of mechanical interference.
s Par,e P FP ~-
Da t o n ' ' ' ' 7 6 Rev. to
19.6.5.4 Lower the closure assembly into a suitable j
disposal container.
19.6.6 Uncouple the closure tool from the closure assembly by performing the following steps:
19.6.6.1 Relieve the pressure on tne hydraulic system.
19.6.6.2 Rotate the selector valve to the " Collapse Fingers" position and actuate the,bydraulic pump two or three
+
strokes.
19.6.6.3 Rotate the entire closure tool 90' c.lockwise against t
I the hardstop while preventing the closure asse=bly l
l from rot,ating.
l i
19.6.6.4 Raise the closure tool from the disposal container.
I Observe the springscale for possible mechanical
}
interference, i
19.6.6.5 The closure tool may now be stored as required, l
I dependent upon operational requirements.
19.6.7 Final Conditions 1.9.6.7.1 The closure assembly has been removed from the i
surveillance holder tube and placed in a disposal container.
-\\
l i
Pew 59 FP-501
.u : e a/15/78 h..
10
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ENCLOSURE 1 (Pega 2 of 2) e FUEL ASSEMBLY
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ENCLOSURE 3 REQUIRED INITIAL C0 Z~! IONS AND PLANT STATUS NOTES:
1.
All items listed here shall have been checked off anc found to be satisfactorily completed before any work is started in connection
- ith this procedure.
w 2.
See Section 7.0 of this precedure for more infor:atien.
r,-... :., _A A.'is ITEM TO BE CHICKZ3 OFF I CHECKED INITIALS i
1._RB cleared for entrv.
i I
- 2. Missile shield slabs removed to sterate location.
I I
3.iRC system cooled and depressurized.
l 1
6 4._ Head seal leak-off valve to R3 nernal sump closed.
i Electrical disconnects complete per ??-401, Reactor 1
5.' vessel closure Head Removal and Recla:e=ent.
i 6.l'RVclosureheadrenovedperFP-401,RecctorVessel Closure Head Re=cval and Replacenent.
Canal seal plate in place per FP,0, Canal
- 7. Seal Plate Removal and Reolacement In-core monitoring instruments withdrawn per j
- 8. FP-701, In-Core Menitor Handling.
i RC system drained and blanketed per C?-303, Draining i
and Nitrogen Blanketing of the RC System, to bring I
9.
level two to six inches below RV flange.
l Internals handling extension, head and internals handlin; fixture, pendants, spreader ring, and indexing fixture
- 10. have all been cleaned and are reade f:
- use, l
Internals storage stand has been cleaned and j
l 11.
is readv for use.
I l
12.
Rcquest for KL:? has been initia-=3 i
.I 13.'Pg
- st for an E:uienent Clearan:e : dar has been initiated.
l li.'Te scision camers/li: hts installed.
13.! r I,_ transfer canal vashed do....
T
' dv(. ired Surveil'ance Proceduru
.;er 5?-441 and 52
--x.
j 16.!: -
'a ine ecmale:ed within recairai cine spans.
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P /e b l PP-501 t
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ENCLOSURE 4 e
FIGURE 1.
CLOSURE Pn.C..C..".I t.V W
Z 4
Z p
3,
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s 0
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F NO U,gER p
/- CAPS C.
e n, /
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REACTOR s
VESSEL Z;
s
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4-1 g
s LO..-.
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['[ CAPS
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N C
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SL'R'lEILLANCE SPECD'I:; HOLDER TUBE LOCATIO:.5 i
A*;3 SURVEILLR;CE SPECIMEN CA?S;'LE/ CLOSURE ASSE:*.ELY ?OSITIC:;I!;G 4
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ENCLOSURE 5' FIGURE 2 SPECII'.E.'! CAPSULE STORAGE
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CLOSU?.E ASSE':3LY STORAG.E C:;LY S?EC 1'*.Eis Ct.? S '.';E
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SECTION Z-Z SPECIMEtt CA?st;E A';D CLOS'JRE ASSE"3LY STORAGE RACT 1.
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