ML20205Q673

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Rev 0 to Plant Mfg Instruction 3.1.2, Thread Upsetting on Welded Sway Struts. Related Documentation Encl
ML20205Q673
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 10/16/1980
From: Cranor D
NPS INDUSTRIES, INC.
To:
Shared Package
ML20205Q559 List:
References
FOIA-85-59 3.1.2, NUDOCS 8606020329
Download: ML20205Q673 (3)


Text

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PLANT MANUFACTURING INSTRUCTIONS PMI No.

Dated Revision No.

T Corporate 3.1.2 10/16/80 0

lAustin

, Portland EXHIBITS TITLE :

THREAD UPSETTING ON WELDED SWAY STRUTS SCOPE OF REVISION :

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hhbv APPROVAL SIGNATURES Original Issue Rev 2 Rev 2 Rev 3 iJggg Au ther Approved k

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.npS PLAMT MANUFACTURING INSTRUCTIONS

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Rev,ision No.:

Title:

THREAD UPSETTING ON WELDED SWAY STRUTS

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I 10/16/80

1.0 PURPOSE

To establish the method for upsetting threads on eye rods 1.1

, in welded sway struts.

2.0 SCOPE

2.1' This instruction encompasses all, sway strut size,06,through

-36.

3.0 PROCEDURE

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Remove eye rod from coupling nut on sway strut.-

3.1 l

3.2 Layout and tirill a 1/4"D bole through the' pipe wall

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approxitcately one inch from the coupling nut weld.

not drill through both walls of the pipe.

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Remove as much, of the drill shavings from inside of the 3.3 pipe as is practicable.

g Screw the eye rod into the coupling nut until the first I

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3.4 two full threads can be seen through 'the 1/4"D hole in the pipe wall.

3.5 Upset * (defom) two adjacent fu'11 threads by inserting a flat end'ed punch (driv.e pin' punch) through the 1/4"O bole and striking with a hammer.

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3.6 Screw the eye rod in one half turn and repeat Step 3.5 above thus upsetting the threads two places.1800 apart.

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Attempt 'tio unscrew the eye rod to verify that the threads are upset.

If not upset, repeat Steps 3*.4 through 3.6 l

3.7 above Using heavier hammer blows.

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3.8 Repeat Steps 3.1 through 3.7 if necessary, for the other cnd of the sway strut.

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201865-6550 telex 141455 secoucus.newJersey07094 f-Octobe,r 23, 1980 NPSI-12-1055 Texas Utilities Services, Inc.

  • N' P.O. Box 1002 Glen Rose, Texas 76043 O

Attention:

J.T. Merritt, Jr./R.T. Uolantejus 4

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Subject:

Texas Utilities Gen. Co.

Comanche Peak Stm. Elec. Sta.

O' Units 1 and 2 Purchase Order No.

CP0046 A.1

Subject:

(PMI No. 3.1.1) Thread Upcet Re f. :

TWX-12,489 Gentlemen:

NPS Industries.is tre.,amitting to TUSI a (PMI No>. J. 2.1, Rev.1)

Thread Upset for your use.

If I can be of any further assistance, please do not hesitate to contact me.

Very truly your s, NPS INDUSTRIES, INC.

Herman W. D'Errico Project Manager g{hhQ HviD:rms le Attachments:

(1) 4 pages

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H.R. Rock, G&H 2L D.C. Frankum, B&R 1L i

e J.T. Merritt, TUSI OL, 1L, 1A

  1. 4 f
  1. R.E. Holloway, G&H 1L 7

J. Oliver, HPSI e TUSI 1L 6

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