Text

Rev B to Maint & Insp Procedure for Type A,Series II Cask
	ML20151C622
Person / Time
Site:	07109159
Issue date:	12/17/1984
From:	Mayer R, Regan E, Voit R; LN TECHNOLOGIES CORP. (FORMERLY LONDON NUCLEAR SVCS
To:	;
Shared Package
ML20151C598	List: ML20151C594; ML20151C618; ML20151C622; ML20151C630; ML20265F300; ML20265F309;
References
	WM-026, WM-26, NUDOCS 8807220067
	Download: ML20151C622 (44)
	v • d • e

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NUMBER REVISION PAGE OF WM-026 B

1 11 TITLE Maintenance and Inspection Procedure for Type A,

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TECHNOLOGIEG C O A l'>O n ATI O N l

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l COPYRIGHT C 1987 BY LN TECHNOLOGIES CORPORATION ALL RIGHTS RESERVED NO PART OF THIS DOCUMENT MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS. ELECTRONIC OR MECHANICAL. INCLUDING PHOTOCOPYING. RECORDING OR BY ANY INFORMATION STORAGE AND RETRIEVAL SYSTEM WITHOUT PERMISSION IN WRITING FROM LN T ECHNOLOGIES CORPOR ATION. EXCEPT FOR STRICTLY CONTROLLED DISTR.BUTION. FC3 EVALUATION PURPOSES

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ORIGINATOR DATE CHECKED DATE OA DATE MANAGER DATE 7220067 000216 C

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NO.

REVISION PAGE WM-026 B

2 of 11 TABLE OF CONTENTS Page 1.0 PURPOSE 3

2.0 APPLICABILITY 3

3.0 DEFINITIONS 3

4.0 REFERENCES

3 5.0 RESPONSIBILITIES 4

6.0 TOOLS AND MATERIALS 4

7.0 PERIODIC MAINTENANCE AND INSPECTION REQUIREMENTS 4

7.1 Inspections Prior to Use 4

7.2 Periodic Maintenance 5

8.0 MAINTENANCE PROCEDURES 5

8.1 Primary Lid Gasket Replacement 5

8.2 Secondary Lid Gasket Replacement 6

8.3 Secondary Lid Hold-Down Stud Replacement 6

8.4 Ratchet Binder Repair or Replacement 6

9.0 DISTRIBUT70N 7.

Inspection and Preuse Repairs 8.

Primary Lid Gasket Replacement Checklist 9.

Secondary Lid Gasket Replacement Checklist 10 Table 1.

Tools and Materials 11

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REVISION.

PAGE 3 of 11 WM-026 B

i N

1.0-PURPOSE

.N

$k This~ procedure identifies the inspection and maintenance 1,y ~

requirements to be followed for all LN Technologies Corporation (LN) Type A,-Series II radioactive waste shipping casks.

This sprocedure ensures that all parts.and materials ~used in

' maintaining-the Type A casks conform to the requirements of the applicable U.S. Nuclear Regulatory Commission (NRC) Certificate of Compliance and that records documenting maintenance are -

. properly maintained.

2.0 APPLICABILITY This procedure is applicable to routine inspection and maintenance for all LN Type A, Series II shipping casks,.

(Cortificate of Compliance 9159, 9176, 9177, 9178, 9179).

Items specifically covered under this procedure include:

o Primary lid gasket replacement o

Secondary lid gasket replacement o

Ratchet binder: replacement o

' Secondary lid stud / nut replacement o

Leak testing of cask seals 3.0 DEFINITIONS 3.1-LN:

LN Technologies Corporation

3.2 USNRC

United States Nuclear Regul'atory Comnission 3.3 C of C:

Certificate of Compliance issued by[the USNRC i

3.4 Primary lid gasket:

Seal placed between the top of the cask body and the underside of primary lid perimeter.

3.5 Secondary lid gasket:

Seal placed between the top of the working opening of the primary lid and the underside of secondary lid.

3.6 Ratchet binder:

Mechanical turnbuckle used i'n securing the primary lid to the cask body.

4.0 REFERENCES

4.1 LN Technoloaies Cornoration Procedurgefi 4.1.1 LN Quality Assurance Manual and Instruction 4.1.2 QA-001, "Procedure and Instruction' Preparation and Control" 4.1.3 QA-011, "Identification for Storage and Retrie. val of Quality Assurance Records" 4.1.4 WM-036, "Soap Bubble Leak Test LN Technologies Type A Series II Shipping Casks" 4.1.5 WM-025, "Operating Procedure for Type A Series II Casks"

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1 s-NO.-

REVISION

? AGE 1WM-026 B-4-of 11 4.1.6

~Di Drawing No. 5025-M-2005, "LN Type A Transportation Casks" 4.2 Other References 4.2.1 USNRC Certificate of' Compliance USA /9159/A 4.2.2

.USNRC Certificate of Compliance USA /9176/A 4.2.3 USNRC Certificate of Compliance USA /9177/A 4.2.4 USNRC Certificate of-Compliance USA /9178/A 4.2.5 USNRC Certificate of Compliance USA /9179/A 14.2.6 USNRC Safety Evaluation Report, Docket No. 71-9159 5.0 RESPONSIBILITIES The Transportation Supervisor is designated as the Project Manager for all_ cask maintenance operations.

He is specifically tasked with-ensuring that all inspections and maintenance is performed in a timely manner, that all maintenance records are properly maintained and that maintenance information is distributed to registered cask users in a timely manner.

6.0 TOOLS AND MATERIALS 6.1 Table 1 provides a complete list of all items necessary to perform routine maintenance on LN Type A, Series II shipping casks.

All materials specified for a particular maintenance action should be available prior to starting the work.

6.2 Materials required for leak testing gaskets are specifically identified in LN Procedure No. WM-036, Reference 4.1.4.

7.0 PERIODIC INSPECTION AND MAINTENANCE 7.1 Inspections Prior to Use Each Type A cask shall be inspected to verify the integrity of the package and the adequacy of the tiedown mechanisms prior to over-the-road movement of the cask.

A complete list of items to be inspected is provided in Table 1.

Inspection of the lid gaskets should be limited to inspections of the lid (s) actually used during cask operation.

For example, if the secondary lid was removed to fill a preloaded disposable liner in the cask, the primary lid gasket need not be inspected unless site procedures require such inspection.

7.1.1 Inspect the primary lid gasket and seating surface prior to placement on the cask.

Gasket must be free of defects such as nicks, frays and cuts.

7.1.2 Inspect the secondary lid gasket and seating surface prior to placement in the primary lid.

The gasket must be free of defects such as nicks, frays and cuts.

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' O; REVISION PAGE

.WM-026 B

. 5 _ o f.11-'

l 7.1.3

. Inspect the secondary lid studs for wear caused by cross treading and over torquing.

-7.1.4 Inspect the secondary lid nuts for wear caused by_

cross treading and over torquing.

7.1.5 Inspect the lid lockdown ratchet binders prioi' to-each shipment.

Check-for freedom of movement and locking action.

7.1.6 Check ratchet binder handle storage straps for

dry-rot or breaks.

7.1.7_

Inspect primary lid guide marks.for fading or flaking paint.-

7.1.8 Inspect secondary lid alignment pins (pins are optional) for wear, cracks and breaks.

Pin should engage shield plug when installed in the primary lid.

7.1.9 Inspect cask to trailer tiedown cable assenblies prior to each shipment.

Inspect tiedown cables for broken or frayed wire, ratchet binders for security and trailer anchor points for cracks and other obvious defects.

7.2 Periodic Maintenance 7.2.1 Replace the primary lid gasket at a minimum of every twelve months.

7.2.2 Replace the secondary lid gasket at a minimum of every twelve months.

7.2.3 Conduct the soap bubble leak test per Reference 4.1.4.

8.0 MAINTENANCE PROCEDURES 8.1 Primary Lid Gasket Replacement 8.1.1 Remove the old flat gasket by hand or use metal scraper, using care to prevent damage to seating surfaces.

Discard old gasket material using proper radiological procedures.

8.1.2 Clean the entire gasket seating surfaces (both cask body and lid) by using a steal wire brush along with acetone as a cleaning solvent and lubricant.

8.1.3 Inspect all seating surfaces for foreign material or nicks which would prevent proper seating and sealing.

8.1.4 Inspec*. ti.9 new replacement gaskets for nicks, frays and cuts.

Discard unusable materials.

8.1.5 Fit gasket to cask body surface.

8.1.6 Place gasket adhesive on cask body in accordance with adhesive directions.

8.1.7 Press gasket into adhesive with hand pressure and allow time recommended on the adhesive directions for the adhesive to set up.

8.1.8 Make butt joints using adhesive between the two gasket surfaces.

Compress to fit.

See Figure 1 for recommended gasket joint method.

m I

NO, REVISION PAGE WM-026 B

6 of 11 45' (a pp ro x isu te ly l Ca sk Dody Extertor

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kp!Yg-g fg?f5fff ACasket Scating Area gdirHe^ [ % Primary Lid Ca ske t Top V icw CAS KET J0 ! b'I' DETAIL

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Adhe'ive d "Ca sk e t Scating Area s

(Side V iew)

Figure 1 8.1.9 Complete Attachment 2 and distribute in accordance with Section 9.0.

8.2 Secondary Lid Gasket Replacement 8.2.1 Remove the old flat gasket by hand or use metal scraper.

Use care to prevent damage to seating surfaces.

8.2.2 Clean entire gasket seating surfaces (both primary lid and secondary lid) by using a steel wire brush along with acetone as a cleaning solvent and lubricant.

8.2.3 Inspect all seating surfaces for foreign material or nicks which would prevent proper sealing.

8.2.4 Place adhesive on primary cask lid, press gasket in place and allow to set until adhesive is set.

8.2.5 Complete Attachment 3 and distribute in accordance with Section 9.0.

8.3 Secondary Lid Hold-Down Stud Replacement Secondary lid studs may be replaced and/c repaired in the following manner.

8.3.1 Heli-coil insert.

8.3.2 Increase depth of tap, drill and retap 1/4" using 3/4" 30UNC-2A stud of appropriate length.

Mate:

as specified in LN Drawing No.

5025-JOS, Sheet 2 of 2, Item 23 (Reference 4.1.6).

8.4 Ratchet Binder Repair or Replacement 8.4.1 If the ratchet binder binds before the primary lid is tightly secure, then perform the following:

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NO.

REvlSION PAGE WM'-026 B

7 of 11

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a.,

Extend ratchet binder far.enough to remove-ball lock' pin and threadless bolt.

b.

. Lean ratchet binder outward away from cask 1 and extend out to full length.

.Be careful not to spin lug ends totally out of binder.

c.

Clean old lubricant and contaminates from threads using a steel brush.

d.

Install new all purpose lubricant on threads and rotate binder ends all the way into the binder.

e.

Extend binder ends back outEto the-length necessary to reinstall the threadless bolt and ball lock pin, f..

Retighten down primary lid using ratchet binder.

8.4.2 If the above steps did not repair ratchet binder, then perform the following:

a.

Loosen binder enough to remove the ball lock pin and threadless bolt.

b.

Remove the cotter pin, nut and bolt on lower end of binder.

c.

-Remove the ratchet binder and ship to LN, Columbia, South Carolina for additional maintenance, d.

Install new ratchet binder on cask by installing bolt through lower end of binder.

e.

Reinstall nut on bolt and secure using a new cotter pin.

f.

Reconnect upper end of ratchet and tighten down in accordance with Reference 4.1.5.

9.0 DISTRIBUTION OF MAINTENANCE RECORDS 9.1 Send original copy of Attachments 1, 2,

and 3 to LN,

Columbia, South Carolina office, c/o Transportation Supervisor.

9.2 Retain one copy for registered User's Cask Manual.

9.3 Additional copies, as may be required, are authorized for registered user's only.

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O, F EVISION PAGE' WM-026 i

B 8 of 11 a

ATTACHMENT 1.

INSPECTION AND PREUSE REPAIRS Cask Model:

Serial No.:

Paracraoh Description EAT Repair Procedure

' Initials-7.1.1 Primary Lid YES/NO 8.1 Gasket / Seating Surfaces-7.1.2

-Secondary Lid YES/NO 8.2 Gasket / Seating

. Surfaces 7.'1.3 Secondary Lid YES/NO 8.3 Studs 7.1.4 Secondary Lid

'YES/NO Replace Nuts 7.1.5~

Ratchet Binders.YES/NO 8.4 7.1.6 Ratchet Binder YES/NO Replace Handle Storage Straps 7.1.7 Primary Lid-YES/NO Repaint Alignment Marks 7.1.8 Secondary Lid YES/NO Replace 7.1.9 Cask Tiedown YES/NO Repair / Replace Inspect / Repair Completed On:

by Date Technician Check if Maintenance is Performed

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NO, REVISION PAGE t

WM-026 B

9 of-11 ATTACHMENT 2.

' PRIMARY LID GASKET REPLACEMENT CHECKLIST

-Cask Model'No.:

Serial No.:

Initials

_Date_

1.

Old gasket-removed 2.

Gasket seating surfaces clean and free

[_

of_ foreign material and nicks (Step 8.1.3) 3.

Replacement gasket acceptance (Step 8.1.4) 4.

-Gasket Inventory No:

5.

Installation completed (Step 8.1.5 through 8.1.8) l 6.

Visual inspection of painted alignment guide plates satisfactory?

Alignment marks repainted?

YES / NO 7.

Other maintenance (describe):

l 8.

a.

Next schedule gasket replacement due by:

Date b.

Leak test of gasket performed in accordance with WM-036; Reference 4.1.4:

Date Signature Date

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. REVISION '

PAGE

.RM-026 B

10 of 11 ATTACHMENT 3.-

SECONDARY LID GA3KET REPLACEMENT CHECKLIST Cask Model No.:

Serial No.:

Initials

_Date_

1..

Old gasket removed (Step 8.2.1) 2.

"Gasket seating surfaces clean and free of foreign material and_ nicks (Step 8.2.3) 3.

Replacement gasket acceptance 4.

Gasket Inventory No:

5.

Installation completed (Step 8.2.4 6.

Visual inspection of painted alignment guido plates satisfactory?

YES / NO Alignment marks repainted?

YES / NO 7.

Other maintenance (describe):

8.

a.

Next schedule gasket replacement due on:

Date b.

Leak test of gasket performed in accordance with WM-036; Reference 4.1.4:

Date Signature Date

TABLE 1.

TOOLS AND MATERIALS

.8

.A w

Primary Secondary Ratchet O

Gasket Lid Gasket Binder Stud / Nut 8[

Replacement Replacement Replacement Replacement 4

s 1.

Primary Lid Gasket x

2.

Secondary Lid Gasket x

3.

Gasket Scrapper or Clean Metal Scrapper Knife x

x 4.

Steel Wire Brush - Manual or Electric x

x x

5.

Iscetone (1 quart) x x

g 6.

Gasket Adhesive (RTV Silicone Adhesive or Equivalent) x x

7.

Ratchet Binder (s) x 8.

Secondary Lid Stud (s) x 9.

Secondary Lid Nut (s) x 10.

All Purpose Lubricant x

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NUMBER REVISION PAGE WM-026 B

1 OF gi TITLE Maintenance and Inspection Procedure for Type A, S ries II Cask TECHNOLOGIEEE C ORPOR ATION i

COP'rRIGHT C 1987 BY LN TECHNOLOGIES CORPORATION ALL RIGHTS RESERVED NO PART OF THIS DOCUMENT MAY BE REPRODUCED OR TRANSMITTEDIN ANY FORM OR BY ANY MEANS. ELECTRONIC OR MECHANICAL. INCLUDING PHOTOCOPYlNG. RECORDING OR BY ANY INFORMATION STORAGE AND RETRIEVAL SYSTEM.WITHOUT PERMISSION IN WRITING FROM LN TECHNOLOGIES CORPORATION, EXCEPT FOR STRICTLY CONTROLLED DISTRIBUTION, FOR EVALU ATION PURPOSES l

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ORIGINATOR DATE CHECKED DATE OA DATE MANAGER DATE

NO.

REVISION PAGE WM-026 B

2 of 11 TABLE OF CONTENTS Page 1.0 PURPOSE 3

2.0 APPLICABILITY 3

3.0 DEFINITIONS 3

4.0 REFERENCES

3 5.0 RESPONSIBILITIES 4

6.0 TOOLS AND MATERIALS 4

7.0 PERIODIC MAINTENANCE AND INSPECTION REQUIREMENTS 4

7.1 Inspections Prior to Use 4

7.2 Periodic Maintenance 5

8.0 MAINTENANCE PROCEDURES 5

8.1 Primary Lid Gasket Replacement 5

8.2 Secondary Lid Gasket Replacement 6

8.3 Secondary Lid Hold-Down Stud Replacement 6

8.4 Ratchet Binder Repair or Replacement 6

9.0 DISTRIBUTION 7.

Inspection and Preuse Repairs 8.

Primary Lid Gasket Replacement Checklist 9.

Secondary Lid Gasket Replacement Checklist 10 Table 1.

Tools and Materials 11 1

PAGE

. NO.

REVISION WM-026 B

3 of 11 1.0 PURPOSE This' procedure identifies the inspection and mainthnance-requirements to be followed for all LN Technologies Corporation (LN) Type A, Series II radioactive waste shipping casks.

This

. procedure ensures that all parts and materials used in maintaining the Type A casks conform to the requirements of the applicable U.S.. Nuclear Regulatory Commission-(NRC) Certificate-of Compliance and that records documenting maintenance are -

properly maintained.

2.0 APPLICABILITY This procedure is applicable to routine inspection and maintenance for all LN Type A, Series II shipping casks, (Certificate of Compliance 9159, 9176,-9177, 9178, 9179).

Items specifically covered under this procedure include:

o Primary lid gasket replacement o

Secondary lid gasket replacement o

Ratchet binder replacement o

Secondary lid stud / nut replacement o

Leak testing of cask seals 3.0 DEFINITIONS 3.1 LN:

LN Technologies Corporation j

3.2 USNRC

United States Nuclear Regulatory Commission 3.3 C of C:

Certificate of Compliance issued by.the USNRC 3.4 Primary lid gasket:

Seal placed between the top of the cask body and the underside of primary lid perimet'er.

3.5 Secondary lid gasket:

Seal placed between the top of the working opening of the primary lid and the underside of secondary lid.

3.6 Ratchet binder:

Mechanical turnbuckle used in securing the primary lid to the cask body.

t I

4.0 REFERENCES

4.1 LN Technolocies Corporation Procedures 4.1.1 LN Quality Assurance Manual and Instruction 4.1.2 QA-001, "Procedure and Instruction Preparation and Control" 4.1.3 QA-011, "Identification for Storage and Retrieval of Quality Assurance Records" 4.1.4 WM-036, "Soap Bubble Leak Test LN Technologies Type A Series II Shipping Casks" 4.1.5 WM-025, "Operating Procedure for Type A Series II Casks"

i NO.

REVISION PAGE WM-026 B

4 of 11 4.1.6 LN Drawing No. 5025-M-2005, "LN Type A Transportation Casks" 4.2 Other References 4.2.1 USNRC Certificate of Compliance USA /9159/A 4.2.2 USNRC Certificate of Compliance USA /9176/A 4.2.3 USNRC Certificate of Compliance USA /9177/A 4.2.4 USNRC Certificate of Compliance USA /9178/A 4.2.5 USNRC Certificate of Compliance USA /9179/A 4.2.6 USNRC Safety Evaluation Report, Docket No. 71-9159 5.0 RESPONSIBILITIES The Transportation Supervisor is designated as the Project Manager for all cask maintenance operations.

He is specifically tasked with ensuring that all inspections and maintenance is performed in a timely manner, that all maintenance records are properly maintained and that maintenance information is distributed to registered cask users in a timely manner.