Hatch Covers: Operation, Testing and Maintenance (eBook)

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Published Date

January 2008


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Hatch Covers: Operation, Testing and Maintenance (eBook)

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This publication provides a definitive study of hatch cover testing and maintenance. The book was written by Mike Wall, Managing Director of Kiwi Marine Consultants Limited and a qualified mediator. Mike has 20 years' experience in hull, machinery, cargo and condition surveys in the USA, New Zealand, Fiji and South East Asia and proved an excellent commentator on the matter.

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During the publication process, this publication was reviewed by a number of experts and interested parties, including the SKULD P&I Club, who provided access to their archives to obtain a number of case studies, and past and current Masters of bulk carriers. The Macgregor Group kindly provided up-to-date design and equipment graphics.

Preface

Foreword

The Author

Acknowledgements

 

1 Why Hatch Covers are Fitted to Ships

2 Background to the Design of Hatch Covers

3 Ship Construction to Accommodate Hatch Covers

4 Different Designs for Different Cargoes

4.1 Bulk Cargoes

4.2 Containers

4.3 General Cargoes

4.4 Refrigerated Cargoes

4.5 Timber Cargoes

4.6 Other Cargoes

5 Hatch Cover Types

5.1 Pontoon and Tarpaulin Covers

5.2 Direct Pull Covers

5.3 Folding Covers

5.4 Roll Stowing Covers

5.5 Side and Rolling Covers

5.6 Life and Roll Covers (Piggy-back)

5.7 Sliding Tween-deck Covers

5.8 Pontoon Covers

5.9 Reefer Vessels

5.10 Other Sealing Systems

5.11 Other Hatch Cover Designs

5.12 Other Cleating Methods

6 The Differences Between Watertightness and Weathertightness

6.1 Ram-nek Tape and Foam

7 Care and Maintenance of Hatch Covers

8 Reasons for Hatch Cover Testing by Various Organisations and the Role of the Marine Surveyor in these Tests

8.1 National-based Survey Organisations

8.2 Classification Societies

8.3 Independent Surveyors

8.4 Insurance Surveyors

8.5 Cargo Surveyors

8.6 On/Off Hire Surveys

8.7 Pre-purchase Condition Surveys

9 The Various Hatch Cover Testing Methods

9.1 Chalk Test

9.2 Light Test

9.3 Hose Test

9.4 Air Test

9.5 Putty or Moulding Clay Test

10 The Use of Ultrasound Testing Equipment, Principles and Operation of the varied Equipment Available on the Market

10.1 What is Ultrasound?

10.2 Advantages of Ultrasound

10.3 The Equipment

10.4 Miscellaneous

10.5 Comparison of the Equipment

10.6 Hatch Cover Testing Protocols and Procedures

11 Client Approval of Ultrasound Testing Equipment and Operators

11.1 Client Approval

12 Common Defects Found when Hatch Cover Testing

13 Repairs to Hatch Covers

 

Case Studies

Case Study 1: Hatch covers leaking in gale force winds

Case Study 2: Leaking hatch covers – damaged steel coils cargo

Case Study 4: Port of refuge required

Case Study 5: Oil leakage from the hatch hydraulic system on to the cargo

Case Study 6: Water damage due to leaking hatch covers

Case Study 7: Alleged wet damage to frozen krill

Case Study 8: Water damage to fishmeal cargo

Case Study 9: Steel cargo damage – ship sweat and sea water

Case Study 10: Water-soaked cargo

 

Appendices

Appendix 1: Resolution MSC.169(79) Standards for Owners ‘Inspection and Maintenance of Bulk Carrier Hatch covers

Appendix 2: Table Showing Comparison of Ultrasound Equipment

 

Index

Title: Hatch Covers: Operation, Testing and Maintenance (eBook)
Number of Pages: 178
Product Code: WS1008EA
ISBN: ISBN 13: 978-1-85609-344-6 (9781856093446), ISBN 10: 1-85609-344-1 (1856093441)
Published Date: January 2008
Author: Michael Ronald Wall

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