ML20149J086

Rev 9,Change 1 to MP 722.2, Overhaul of Worthington Svc Water Pumps

ML20149J086
Person / Time
Site:	Millstone
Issue date:	07/18/1997
From:	Mcnerney T NORTHEAST NUCLEAR ENERGY CO.
To:
References
MP-722.2, NUDOCS 9707280037
Download: ML20149J086 (5)

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• NDS Document Transmittal 7/18AJ/

To:

Nuclear Regulatory commiselon Aerexs uniqu.e 14o Document Control Desk ROUTINE distribitiore Washington, D.C. 2055$

The following dcctunents have been tensed. You are currently on distribution for these documents. Verify that all documents are includsd in this distribution set.

i DOCUMENI REM COPIES MP 722.2, CH1 9

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l bl 9707280037 970718' PDR ADOCK 09000245 p

PDR Return this form to NOS, PAP 475,3rd Floor, C/O Rick Lundin (x2446) as ran as received.

Signature Date:

r Procedure and Form Change Request

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t h eiiori) v Se.: lion 1: Change inivation information 9

Cha"Me No-1 Dwument No.:fAP 722.2 -

_ Resision No.

Title:

Overhaul of Worthington Service Water Pumps

'Initiaud By: T. McNerney Change Ty pe: Intent {X] Non Intent N'"50"

' ogr.'e Chance? g]e com{n m

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To increase the amount of material that can be removed irom the

- quires esp <rai tension hearing shoulder.

Expiration Date or Condition:

Removed Date:

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Section 2. in'tinctions for Entering Change Replace pages 38,46, and 58 Section 3: Non-intentChan'gsInterim Approval

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Section 3a. Approved by SORC or PORC Mernber or First Line Supervisor Signature:

Date:

interim Approval

' Secrion 3b. Approved by Shift Manager or SRO Licensed on Unit Signature:

Date:

(G Section 4: Reviews

)

QA Reviewer Signature: orrequma' Date-Independent Reviewer Signature:

}

Date:

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No comments @

Gr-Anachment 10 from IX' 3 not reciuired c.:mm an maexw.uzz mm:n cm =: w =aa.

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NO [ _ /feither question is answered "TES."

4 Safety Esaluation Required?

YES l' ORC or SORC res iew is required 4 Environntental Review Required?

YES NO 8 w' "

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Section 5: Review and Approval YES NO Department llead or Responsible Resiew Required?

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Date:

Individual Signature:

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(Common ikparunent Proecdures require Date:

ca-:h $ ruled Department IIca#s signatures) --

Date:

Section 6: APPROVAL Meet.mg Number:

j g_ ll0 PORCirSORC Apg roval Date:

7..lg_97 L iairperson Signature: _

Effective Date:

oc1 A:t 6. Rev 5 (06-03 97) l

. 1 -[f) "N Staton Admin Procedures Group OSCAR Report O

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?n4 NOTE-

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1.. Machining of the column pipe flange faces reduces the overalllength.

of the assembled column pipes. This causes the tension bearing

. shoulder or tension bearing threads to bottorc..)ut in the shaft enclosing tube before the tension bearing flange makes adequate contact with the stuffing box flange face. The tension bearing, stuffing i

box bore, and shaft enclosing tube internal threads must be measured to ensure that the tension bearing can make adequate contact. If necessary, the tension bearing must be machined.

2.

The tension bearing can be machined in one of two ways, depending.

on the location of the interference: the lower end of the tension bearing threads can be machined up to 0.500 inch, or the shoulder above the threads can be machined up to 0.250 inch.

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l' 4.5.66 Refer To Figure - 1, and MEASURE dimension between bottom of tension bearing flange and top of tension bearing threads.

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. Figure - 1. Tension Bearing Contact Check Measurement N

TENSION llEARING b

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l FLANGE 2

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'.- TENSION llEARING TilREADS i-4.5.67. MEASURE dimension between top of stuffing box flange and top of shaft enclosing tube.

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- 4.5.68 IE dimension between bottom of tension bearing flange and top of tension bearing threads isgreaterthan dimension between top of stuffing box flange and top of shaft enclosing tube, Refer To, and MACHINE tension bearing shoulder no more than 0.250 ha.h,

[Ch 0.500 iv 1

4.5.69 MEASURE dimension between bottom of tension bearing flange p

and bottom of tension bearing threads.

3 3-MP 7~77 7

. Level of Use "sT W "thlNk~

GCT REVIEW

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Rev.9 J' General.

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38 of 63 e

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' Action Request (A/R) 96005504," Revise MP722.2 to Overhaul all Service Water Pumps as OA" 6.6.4 Design Change Notice (DCN) DM1-S-0967-96 " Removal of Additional Upper Column Torque Support / Spider from Service Water Spare Pump"

. 6.6.5 -

Design Change Notice (DCN) DM1-00-0399-97 " Upper Spider for Service Water Spare Pump and As-Built Features" 6.6.6 Design Change Notice (DCN) DM1-00-1267-96 "SWS Pump M4-7B/C/D/ Spare Tension Bearing Modification" 6.6.7 Design Change Notice (DCN) DM1-00-1266.96 " Lubricating Water Supply Tubing to Tension Nut on Service Water Pump M4-7C & 7D" 6.6.8 Design Change Notice (DCN) DM1-01-1267-96 "SWS Pump M4-7B/C/D/ Spare Tension and Lineshaft Bearing Modifications" h

6.6.9 Minor Modification MMOD M1-97547," Service Water Pump V

Modifications" 1

6.6.10 Engineering Record Correspondence ER-96-0114," Temporary Removal of SW Pumps A,B,C, or D.

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7.

SUMMARY

OF CHANGES 7.1 Interim changes 1 and 2 were incorporated. Change 1 added th:

requirement that the PE department verifies the as-left impeller end play

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dimension. Change 2 added the requirement to weld all spider adjusting bolts.

7.2 The name and scope of this procedure were changed to cover only the Worthington model service water pumps.

l 7.3 Added requirement to cover all pumps as QA per A/R 96005504.

7.4 Tension bearing breakaway torque measurement was added.

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Ibd MP 722.2 Level of Use STOP' THINK '

,_ACT REVIEW Rev. 9 General i

46 of 63 t

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Attachment o l

Tension llearing Modification Detail (Sheet i of 2) m NOTE 3 NOTE 4

\\s "20' d I/n"X 45 CilAMFER I" DIAMPTER

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NOTE 2

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sM" N O l'ES S

1. TRIM AS REQUIRED MAXIMUM) TO ENSURE TENSION llEARING PitELOAD IS OllTAINED

((ik PRIOR To llOTTOMING OUT ON TOP SIIAFT ENCLOSING tulle. (AMOUNT VARIES DEPENDING ON PUMP COI.UMN LENGTilS) MAClllNE CilAMFER AFTERTRIMMING.

2. TRIM TilREADS AS REQUIRED (1/2" MAXIMUM) TO ENSURE TENSION llEARING PRELOAD IS j

I OllTAINED PRIOR TO IlO'ITOMING OUT ON SIIAlT ENCLOSING tulle INTERNAL TIIREADS.

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3. SKIM OD TO OllTAIN CONCENTRIC SURFACE AS REQUIRED FOR DIAL INDICATOR DURING l

COUPLING ALIGNMENT.

4.TilESE DIMENSIONS ARE NOT CRITICAL. Tile DIMENSIONS SilOWN ARE APPROXIMATIONS.

5. Tills IIOLE IS FORTIIE INSTALLATION OF A SETSCREW USED FOR PUMP ALIGNMENT.

6. IIROACil FOUR FULI.1.ENGTil WATERWAY KEYSLOTS 90' APART. SPECI AL llROACil IN UNIT 1 MAINTENANCE SilOP f"h i

N1P 777 7

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Level of Use STOP THINK ACT REVIEW Rev.9 General as at 63 1

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