ML20212P070

Rev 8 to Maint Procedure MP-121, Pump Repacking

ML20212P070
Person / Time
Site:	Crystal River
Issue date:	08/07/1985
From:	FLORIDA POWER CORP.
To:
Shared Package
ML20212N983	List: 3F0387-02, Forwards Info Re Generic Issue 124,auxiliary Feedwater Sys Reliability,Per NRC 870218 request.W/75 Oversize Drawings ML20212N984 ML20212N990 ML20212P002 ML20212P006 ML20212P021 ML20212P035 ML20212P041 ML20212P058 ML20212P070 ML20212P078 ML20212P082 ML20212P103 ML20212P204 ML20212P231 ML20212P253 ML20212P278 ML20212P283 ML20212P299 ML20212P324 ML20212P337 ML20212P351 ML20212P378 ML20212P394 ML20212P402 ML20212P419 ML20212P443 ML20212P484 ML20212P501 ML20212P518 ML20212P527 ML20212P534 ML20212P545 ML20212P559 ML20212P571 ML20212P587 ML20212P597 ML20266E430 ML20266E434 ML20266E436 ML20266E440 ML20266E444 ML20266E449 ML20266E453 ML20266E456 ML20266E460 ML20266E471 ML20266E475 ML20266E479 ML20266E481 ... further results
References
MP-121, NUDOCS 8703130266
Download: ML20212P070 (8)

Text

,- ~I%~L f

Rev.8 07/12/85

_ - s war - -

Document Section n

FORM / TION ONL 1 C. ii. Mt:0I2 "

ul , - .x

1. * *'~

[AYh NANCE PROCEDURE MP-121 FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 8

PUMP REPACKING THIS PROCEDURE ADDRESSES SAFETY RELATED COMPONENTS i

l l

l APPROVED BY: Responsible Section Superintendent /

l Supervisor l

\h, .a i

Date hb '

INTERPRETATION CONTACT: Nuclear Maintenance Supt.

D703130266 370305 PDH ADOCK 05000302 P PDR

1.0 PURPOSE 1.1 This procedure is to provide instructions for the repacking of pumps in various safety-related systems.

Procedure Section Packing Removal 7.1 Packing Installation Using Braided Packing 7.2 Packing Installation Using Grafoil Loose Ribbon 7.3

2.0 REFERENCES

2.1 IMPLEMENTING REFERENCES 2.1.1 CP-115, In-Plant Equipment Clearance and Switching Orders 12 DEVELOPMENTAL REFERENCES 2.2.1 None 3.0 ENCLOSURES Enclosure 1 Pump Packing Data Sheet MP-121 Rev. 08 Page i

4.0 LIMITS AND PRECAUTIONS 4.1 Some of the equipment covered by this procedure may be used in systems which have been subjected to radioactive contamination.

Precautions against the spread of this contamination must be taken.

5.0 EQUIPMENT AND PERSONNEL REQUIREMENTS 5.1 Personnel assigned should be knowledgeable, experienced and qualified to perform the specified tasks as determined by the appropriate supervisor.

5.2 Tools (as required).

5.3 Size and type of packing material as recommended by manufacturer providing it meets the requirements for "N" class packing. If there is any question concerning the ' type or class of packing to be used, contact the Nuclear Mechanical / Building Service Supervisor.

6.0 REQUIRED INITIAL CONDITIONS AND PLANT STATUS 6.1 The equipment to be worked on is to be isolated and removed from service using an Equipment Clearance Order per CP-li5, In-Plant

! Equipment Clearance and Switching Orders, and approved Operating Procedures where applicable.

6.2 Obtain a Radiation Work Permit (RWP), if needed.

MP-121 Rev. 08 Page 2

7.0 PROCEDURE 7.0.1 ENSURE o Limits and Precautions of Section 4.0 have been reviewed Personnel and Equipment are available per Section 5.0 o

o Initial Conditions of Section 6.0 have been met Completed By Date 7.1 PACKING REMOVAL i 7.1.1 Ensure System or Pump is s o Isolated o Drained o Vented NOTE: When repacking, parts should be bagged and labeled for I

casy identification.

7.1.2 Remove o Nuts on Packing Flanges

o Packing i

o Lantern Ring i

l NOTE: Packing Gland can be secured to prevent interference.

1 MP-121 Rev. 08 Page 3 .

l

7.1.3 The Nuclear Mechanical / Building Service Supervisor must check o Pump Shaf t o Packing Gland o Stuffing Box 7.1.4 Record Packing Box condition found on Enclosure 1, Page 7 .

Completed By Date 7.2 PACKING INSTALLATION USING BRAIDED PACKING CAUTION: Ensure all locking devices are reinstalled during reassembly. The Nuclear Mechanical / Building Service Supervisor will resolve any questions.

7.2.1 Measure Pump Shaf t and Stuffing Box inside diameter.

Record on Enclosure 1, Page 7 .

7.2.2 Identify type and size of packing used on Enclosure 1, Page 7 .

7.2.3 Install packing (staggered 900) and lantern rings.

7.2.4 Tighten last ring of packing snug then loosen nuts to finger-tight.

Completed By Date MP-121 . Rev. 08 Page 4

1 l

l l

7.3 PACKING INSTALLATION USING GRAFOIL LOOSE RIBBON CAUTION: Ensure all locking devices are reinstalled during reassembly. The Nuclear Mechanical / Building Service Supervisor will resolve any questions.

7.3.1 . Measure Pump Shaf t and Stuffing Box inside diameter. Record on Enclosure 1, Page 7 .

7.3.2 Identify type and size of packing used on Enclosure 1, Page 7 .

NOTE: An Anti-Extrusion Ring will be used at the very bottom of the Stuffing Box,.above and below the Lantern Ring, and at very top of Packing Chamber. Any exceptions must be l

specified by the Nuclear Mechanical / Building Service Supervisor.

7.3.3 In .the appropriate locations, wrap Grafoil Ribbon Packing around Pump Shaft, shove ribbon into Stuffing Box and compress to approximately 50%.

7.3.4 Align Lantern Ring in its proper position.

7.3.5 Tighten last ring of packing snug then loosen nuts to finger-tight.

Completed By Date MP-121 Rev. Page 5

s

. 8.0 POST-MAINTENANCE TESTING AND SYSTEM RESTORATION 8.1 Upon completion of the maintenance activity, return to service by use of an approved Operational Procedure or by release of the Equipment Clearance Order.

8.2 A functional test of the system must be run by Operations per approved Operational Procedures or Surveillance Procedures. Any signs of leakage should be reported to the Nuclear Mechanical / Building Service Supervisor for resolution. .

8.3 Mechanical Personnel should check pump leak-off and Packing Gland temperature during functional testing. Notify the Mechanical / Building Service Supervisor if problems are noted.

l MP-121 Rev. 08

• Page 6 l

i L

ENCLOSUREI PUMP PACKING DATA SHEET FPC Tag No.

7.1.f4 Comments on Packing Box Conditions:

7.2.1/7.3.1 Pump Shaft Diameter Pump Stuffing Box !.D.

7.2.2/7.3.2 Type and Size Packing Used l

Work Performed By i Name Date Verified By Mechanical Supervisor Date MP-121 Rev. 08 p, , 7 (LAST PAGE)

L