CCGS 88m Heavy

Crankcase Vent Pipe Relocation

TECHNICAL SPECIFICATION

Doc. No. 17-193-002 Rev. 0

16 July 2018

Prepared For:

CCG Supervisor / Engineering - St. John's P.O. Box 5667 St. John's, NL A1C 5X1

Prepared By:

Poseidon Marine Consultants Ltd. 391 Stavanger Drive St. John's, NL, A1A 0A1

CCGS TERRY FOX CRANKCASE VENT PIPE RELOCATION 16 JULY 2018 TECHNICAL SPECIFICATION

DOCUMENT INFORMATION

Rev Date Description Prepared Checked Approved

0 16 July 2018 Issued for CCG Review A. Mercer S. Mulrooney 1 17 July 2018 Revised per comments A. Mercer --

REVISION SUMMARY

Rev Affected Sections Remarks By

1 4 Clarified existing pipe is 3”, new pipe to be 4” with AJM transition piece.

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CCGS TERRY FOX CRANKCASE VENT PIPE RELOCATION 16 JULY 2018 TECHNICAL SPECIFICATION

TABLE OF CONTENTS

1.0 PURPOSE 3 2.0 REFERENCE DRAWINGS AND DOCUMENTS 3 3.0 DEFINITIONS AND ABBREVIATIONS 3 4.0 CONTRACTOR SCOPE OF WORK 3 4.1 CONTRACTOR RESPONSIBILITY 3 4.2 EXECUTION OF THE WORK 4 4.3 CONTRACTOR SUPPLY 5 4.4 SCOPE OF WORK 5 5.0 GENERAL NOTES 5

APPENDIX A Photographs of existing and proposed pipe routing APPENDIX B Proposed Vent Pipe Route Drawings

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1.0 PURPOSE

This document is intended to provide a baseline scope of work pertaining to relocation of the crankcase vent pipes to terminate at the casing top port and starboard.

2.0 REFERENCE DRAWINGS AND DOCUMENTS

63-00-01 Arrangement Main Engine, Diesel Generator & Incinerator Exhaust System 62-00-02 Machinery Space Ventilation Engine Room

3.0 DEFINITIONS AND ABBREVIATIONS

Contractor TBD Refit/Repairer CCG DFO - Vessel Owner PMC Poseidon Marine Consultants Ltd. Owner's Representative

4.0 CONTRACTOR SCOPE OF WORK

4.1 Contractor Responsibility

This section describes the general scope of work under the responsibility of the Contractor.

While every effort has been made to capture the extent of impact on existing vessel arrangements, the Contractor shall carry out their own familiarization prior to commencing the work.

In the course of planning or execution of the work, the Contractor is welcome to make suggestions for means of accelerating the completion of the work, provided that such means are acceptable to CCG, PMC, and the attending surveyor. The Contractor shall advise CCG on any anticipated deviations from the specified scope of modification prior to the commencement of work in the affected area of the vessel, as far as practicable.

Existing items removed from the vessel shall be stored in a dry and secure location and reinstalled or replaced as directed by CCG.

All new materials, equipment and systems not specifically identified in this document shall be approved by CCG and/or the attending surveyor prior to procurement.

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4.2 Execution of the Work

The Contractor shall complete the work in a manner that regards prevailing and forecasted weather conditions, such that CCG property and equipment is suitably sheltered where applicable, does not compromise the structural integrity of the vessel, electrical and/or piping systems, and enables periodic and systematic inspections of ongoing and completed work by CCG and the attending surveyor.

All work shall be completed to the satisfaction of CCG and the attending surveyor. The Contractor shall establish critical milestones at which the work may be inspected.

The Contractor shall provide all ancillary services necessary to complete the work. These may include, but are not limited to strip out, temporary and/or permanent removal of interference items, craneage, staging, cleaning, debris removal, water, shore power, etc.

The Contractor shall remove fittings, fixtures, linings, insulation, wiring, equipment, piping, tubing, machinery, etc. as required to complete the work and replace all removed items as per original once the work is completed and as directed by CCG.

The Contractor shall be responsible for ensuring any affected spaces are cleaned, gas freed, and certified for hot work.

Unless otherwise approved, all new plate to be mill certified Lloyd’s Register Grade A or equivalent and pipe to be ASTM A53 or equivalent.

New plate and pipe to be blasted and weldable primer applied where applicable. All hot work is to be executed in accordance with CSA W59 and CSA W47.1, using weld material of a yield strength equivalent to E-7018 electrodes or as otherwise specified by the weld procedures supplied by the Contractors welding engineer.

All welding of brackets and hangers to be double continuous, having minimum 3/16” leg. Butts and seams to be full penetration, unless noted otherwise.

Welding shall be subjected to 100% visual examination and 100% UT of insert plate welds, unless approved otherwise by the attending surveyor.

All parts of the vessel remaining in existing condition, which could be impacted or damaged by ongoing work, shall be duly protected. Damaged areas and equipment shall be rectified accordingly.

New steel and disturbed areas shall be cleaned and primed. Final coatings shall be applied as directed by CCG personnel.

All affected areas and spaces shall be cleaned, and all debris removed from the vessel once the work has been completed.

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4.3 Contractor Supply

The Contractor shall supply all material and equipment required to complete the work.

4.4 Scope of Work

The existing 3” crankcase vent pipes from each of the four main engines are to be removed from the open end on the superstructure bulkhead main deck level to the Victaulic couplings above the condensation traps in the engine room (see photographs 1 & 2, Appendix A). Penetrations in each side of the main deck are to be cropped and replaced using a minimum 12” by 12” insert plate of same thickness as original having 3” radius corners or using existing seams in accordance with IACS 47.

The new pipe is to be 4” schedule 40, painted as directed by CCG personnel. The pipe is generally to be routed as follows (see Appendix A & B for photographs and drawings):

• Vertically from the condensation trap to the underside of deck beams, approximately 3m length per pipe • Forward, outboard of the 2 short ton lifting rails port and starboard to the casing, approximately 10m length per pipe • Vertically and outboard to the casing side, extending to the top of the casing, approximately 20m length per pipe • Passing through the top of the casing, terminating in a gooseneck.

All pipe connections are to be Victaulic groove or equivalent. A reducer is to be used to transition from existing 3” pipe at the condensation trap to new 4” pipe.

Pipe penetration at top of stack to be a continuously welded sleeve.

Vertical and horizontal pipe runs to be sufficiently supported with pipe hangers and protected from vibration. Hangers to be yard standard.

Horizontal pipe run to be sloped to allow condensation to drain back to the trap.

5.0 GENERAL NOTES

• Questions of a technical nature arising from this scope of work or the referenced documents shall be directed to PMC.

• Questions of a commercial nature arising from this scope of work or the referenced documents shall be directed to CCG.

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• Should issues arise during periodic inspections by the attending surveyor, necessitating action which deviates from the content of this scope of work or the referenced drawings, the Contractor shall contact CCG prior to carrying out any additional work.

• Contractor shall insure that modification to the vent system will not negatively impact engine performance.

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APPENDIX A Photographs of existing and proposed pipe routing

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Photograph 1 - Aft engine room bulkhead showing location of existing vent pipes and vapour traps

Photograph 2 - Aft deckhouse bulkhead showing location of existing vent pipes

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Photograph 3 - Engine room starboard looking forward showing possible location of new pipe run

Photograph 4 - Casing aft bulkhead, looking aft

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PROPOSED LOCATION OF VENT PIPE TERMINATION

EXHAUST INTAKE

Photograph 5 - Terry Fox superstructure. Note location of casing and engine room intake and exhaust vents.

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APPENDIX B Proposed Vent Pipe Route Drawings

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