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USCGC BUCKTHORN (WLI 642)

SPECIFICATION FOR DRYDOCK REPAIRS

FY2016

Developed By: Tyler J Richardson

(Rev-0, 25 January 2016)

USCGC BUCKTHORN (WLI-100) DRYDOCK AVAILABILITY FY2016

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record ......................................................................................................................................... iii Consolidated List of References ................................................................................................................... iv Consolidated List of Government-furnished Property ............................................................................... vii Consolidated List of Critical Inspection Items .......................................................................................... viii Principal Characteristics - Tender ................................................................................................................ ix General Requirements WORK ITEM 1: Appendages (U/W), Leak Test WORK ITEM 2: Propulsion Shaft Rope Guards, Inspect and Repair WORK ITEM 3: Propulsion Shafting, Remove, Inspect, and Reinstall WORK ITEM 4: Propulsion Shaft Bearings (External), Check Clearances WORK ITEM 5: Propeller, Remove, Inspect, and Reinstall WORK ITEM 6: Keel Coolers, Clean, Inspect and Hydro WORK ITEM 7: Sea Strainers - Duplex (All Sizes), Overhaul WORK ITEM 8: Rudder(s), Preserve (“100%”) WORK ITEM 9: Rudder Stock Bearings Clearances, Check WORK ITEM 10: Decks – Exterior (Buoy or Construction Deck), Preserve 100% WORK ITEM 11: U/W Body, Preserve (100%) WORK ITEM 12: U/W Body, Preserve (Partial - Condition A) WORK ITEM 13: U/W Body, Preserve (Partial - Condition B) WORK ITEM 14: Hull Plating Freeboard, Preserve – Partial WORK ITEM 15: Drydock WORK ITEM 16: Temporary Services, Provide - Tender WORK ITEM 17: Sea Trial Performance, Support, Provide WORK ITEM 18: Appendages (U/W) - Internal, Preserve WORK ITEM 19: Tanks (MP Fuel Stowage and Overflow), Clean and Inspect WORK ITEM 20: Propulsion Shafting, Straighten WORK ITEM 21: Propulsion Shaft Bearings (External), Renew WORK ITEM 22: Propeller, Minor Repairs and Reconditioning, Perform WORK ITEM 23: Stern Tube Interior Surfaces, Preserve 100% WORK ITEM 24: Deck Covering (Interior Wet/Dry), Renew WORK ITEM 25: Hull Plating (U/W Body), Inspect WORK ITEM 26: Hull Plating (U/W Body), Ultrasonic Testing WORK ITEM 27: Hull and Structural Plating (General) -10.2-Pound Steel, Repair WORK ITEM 28: Hull and Structural Plating (General) - 12.75-Pound Steel Plate, Repair WORK ITEM 29: Hull and Structural Plating (General) - 15.3-Pound Steel Plate, Repair WORK ITEM 30: Hull and Structural Plating (General) - 20.5-Pound Steel Plate, Repair WORK ITEM 31: Hull and Structural Plating (General) - 7.5-Pound (3/16") Steel Plate, Repair WORK ITEM 32: Hull and Structural Plating (General) – 7.65-Pound Steel Plate, Repair WORK ITEM 33: Hull and Structural Plating (General) - Cracked Steel Welds, Repairs WORK ITEM 34: Hull and Structural Plating (General) - Degraded Weld (Steel), Repair WORK ITEM 35: Fathometer Transducer, Renew – Tender WORK ITEM 36: Rudder Assembly; Remove, Inspect and Reinstall WORK ITEM 37: Propulsion Shaft Packing, Renew WORK ITEM 38: Sewage Piping, Renew WORK ITEM 39: Jacket Water System Valves, Overhaul WORK ITEM 40: Grey Water Piping, Clean and Flush WORK ITEM 41: Hull Plate, Repair WORK ITEM 42: Fuel Tank, Repair iii (Rev-0)

REVISIONS RECORD

This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE REV# WORK

ITEM#

CHANGES MADE

NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.

iv (Rev-0)

CONSOLIDATED LIST OF REFERENCES

The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.

All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – as follows:

MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm

Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp

Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws::

www.gpoaccess.gov

The Government is aware of the following internet web links where contractors may procure commercial specifications:

American Welding Society (AWS): http://www.awspubs.com/index.php

ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/

NFPA: http://www.nfpa.org

SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace

COAST GUARD DRAWINGS

Coast Guard Drawing 642 WAGL 103-001, Rev I, Outboard Profile

Coast Guard Drawing 642 WAGL 103-003, Rev I, Arrangements of Decks

Coast Guard Drawing 642 WAGL 103-004, Rev F, Booklet of General Plans

Coast Guard Drawing 642 WAGL 1101-001, Rev L, Shell Expansion

Coast Guard Drawing 642 WAGL 1103-002, Rev C, Skeg

Coast Guard Drawing 642 WAGL 1105-001, Rev F, Main WT and OT Bulkheads

Coast Guard Drawing 642 WAGL 1106-001, Rev G, Main Deck

Coast Guard Drawing 642 WAGL 1403-001, Rev B, Deck Covering Schedule

Coast Guard Drawing 642 WAGL 2200-001, Rev D, Steering Gear Arrgt & Dets

Coast Guard Drawing 642 WAGL 2200-002, Rev E, Rudders & Stocks

Coast Guard Drawing 642 WAGL 2901-001, Rev A, Hydrostatic Curves

Coast Guard Drawing 642 WAGL 3601-001, Rev -, Sewage Vacuum/Gray Water, Pot Wtr/Misc Piping, Vent Sys (Ripout)

Coast Guard Drawing 642 WAGL 3601-002, Rev -, Sewage Vacuum/Gray Water Piping (Mods)

Coast Guard Drawing 642 WAGL 4103-001, Rev E, Engine Cooling System

Coast Guard Drawing 642 WAGL 4301-002, Rev -, Propulsion Shaft Alignment

Coast Guard Drawing 642 WAGL 4301-003, Rev A, Shafting & Bearings

Coast Guard Drawing 642 WAGL 4400-001, Rev A, Buckthorn Propeller 44” Dia. X 37” Pitch, 3 Blade

RH & LH

Coast Guard Drawing 642 WAGL 4808-001, Rev C, Plumbing and Deck Drains v (Rev-0)

Coast Guard Drawing 642 WAGL 500-001, Rev B, Lines

Coast Guard Drawing 642 WAGL 700-001, Rev E, Docking Plan

Coast Guard Drawing FL 6713-201, Rev B, CRP-V850 Transducer (B-14) Adapter Assembly

Coast Guard Fleet Drawing FL 2804-12, Rev -, U.S.C.G. Emblem

Coast Guard Fleet Drawing FL 2804-22, Rev -, Consolidated Visual ID for Cutters

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2014, Auxiliary Machine Systems

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 6341 (SFLC Std Spec 6341), 2014, Install Interior Deck Covering Systems

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2014, Drydocking

Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2014, Temporary Services

OTHER REFERENCES

American Bureau of Shipping (ABS) 2, Rule Requirements for Survey After Construction, 2014, Part 7, Appendix Section 10, Guide for Bronze and Stainless Steel Propeller Castings

American Society of Mechanical Engineers (ASME) B16.34, 2004, Valves-Flanged, Threaded, and Welding End

American Welding Society (AWS) D1.1 Structural Welding Code, 1999, Section 5.26 Repair

ASTM International (ASTM) D1330, 2010, Standard Specification for Rubber Sheet Gaskets

ASTM International (ASTM) D3359, 2009, Standard Test Methods for Measuring Adhesion by Tape Test

ASTM International (ASTM) D3951, Reapproved 2010, Standard Practice for Commercial Packaging

ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means

ASTM International (ASTM) D5363, 2008; Standard Specification for Anaerobic Single-Component Adhesives (An)

ASTM International (ASTM) F992, 2006, Standard Specification for Valve Label Plates

Commercial Item Description (CID) A-A-52624, Nov 2008, Antifreeze, Multi Engine Type, Ethylene Glycol (For Caterpillar applications, use CAT Extended Life Pre-Mix coolant.)

DOD-STD-2187, Aug 1987, Chemical Cleaning of Salt Water Piping Systems

Federal Specification (Fed Spec) HH-P-151, Mar 1991, Packing; Rubber-Sheet, Cloth-Insert

Federal Specification (Fed Spec) QQ-N-281, Oct 1985, Nickel-Copper Alloy Bar, Rod, Plate, Sheet, Strip, Wire, Forgings, and Structural and Special Shaped Sections

Fernstrum Gridcooler Installation and Maintenance Manual, 2013, Form 175 vi (Rev-0)

International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller - Manufacturing Tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50 m, Inclusive

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-61, 2003 Edition, Pressure Testing Of Steel Valves

Manufacturers' Standardization Society of the Valve and Fittings Industry (MSS) SP-80, 2008 Edition, Bronze Gate, Globe, Angle and Check Valves

MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning

MIL-PRF-16173, 2006, Corrosion Prevention Compound, Solvent Cutback, Cold Application

MIL-PRF-16173, Sep 2006, Corrosion Prevention Compound, Solvent Cut-Back, Cold-Application

MIL-PRF-24647, 2013, Paint System, Anticorrosive and Antifouling, Ship Hull

MIL-PRF-900, Mar 1991, Rubber Gasket Material, 45 Durometer Hardness

MIL-S-45180, 1998; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant

MIL-STD-167-1, Nov 2005, Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited)

MIL-STD-2191, Nov 1992, Repair Welding, Weld Cladding, Straightening, and Cold Rolling of Main Propulsion Shafting

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2013, Cork and Rubber Composition Sheet; For Aromatic Fuel And Oil Resistant Gaskets

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) G-6032, 2014 Grease, Plug Valve, Gasoline and Oil Resistant, NATO Code Number G-363, Metric

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 1 (SSPC-SP 1), 2004, Solvent Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 11 (SSPC-SP 11), 2012, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 3 (SSPC-SP 3), 2004, Power Tool Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.11 (SSPC-SP 11), 2004, Power Tool Cleaning

The Society for Protective Coatings (SSPC), January 2015, Paint Application Specification No. 2 (PA-2), Procedure for Determining Conformance to Dry Coating Thickness Requirements

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, 2007, Near-White Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No.5, 2007, Surface Preparation and Cleaning of Steel & Other Hard Materials by High and Ultrahigh Pressure Water Jetting

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 7/NACE No.4, 2007, Brush-Off Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP WJ-2/NACE WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP WJ-4/NACE WJ-4, 2012, Waterjet Cleaning of Metals – Light Cleaning vii (Rev-0)

CONSOLIDATED LIST OF GOVERNMENT-FURNISHED PROPERTY

The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.

WORK

ITEM

MTI ITEM

DESCRIPTION

NSN/PN QTY ESTIMATED

COST

($/UNIT)

3 Y **Propeller shaft NSN: 2 ea.

5 Y **Propeller, right hand

NSN: 2010-01-F08-1386

PN: 642 WAGL-4400-1

RH

1 ea. 7,200.00

5 Y **Propeller, left hand NSN: 2010-01-F03-0148

PN: 642 WAGL-4400-1 LH

1 ea. 7,200.00

6 N Engine Coolant – CAT ELC 50/50 Pro-mix

PN: 238-8650 300

gallons

3,500.00

21 N Aft Strut Bearing NSN: 2 ea.

35 N ***Fathometer

Transducer, Shallow Water, 50-200 kHz

(Airmar Technology

SS505)

NSN: 5845-01-470-2500 1 ea. 343.63

36 Y **Rudder assembly NSN: 2 ea. 25,000.00 36 Y **Rudder stock NSN: 2 ea. 12,000.00 38 N Sewage Pump

Assembly, Dometic/Sealand “M” series pump assembly, 115VAC model

PN: 1 ea.

*Government-loaned property, which shall be returned to the vessel upon completion of the availability.

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

***Government-furnished property, which is to be supplied by either the vessel or the C4IT ServiceCenter viii (Rev-0)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000, paragraph 3.2.6.5 (Inspection report particulars)):

Work Item

Title

1 Appendages (U/W), Leak Test

3 Propulsion Shafting, Remove, Inspect, and Reinstall

4 Propulsion Shaft Bearings (External), Check Clearances

7 Sea Strainers - Duplex (All Sizes), Overhaul

11 U/W Body, Preserve (100%)

19 Tanks (MP Fuel Stowage and Overflow), Clean and Inspect

21 Propulsion Shaft Bearings (External), Renew

24 Deck Covering (Interior Wet/Dry), Renew

26 Hull Plating (U/W Body), Ultrasonic Testing

36 Rudder Assembly; Remove, Inspect and Reinstall ix (Rev-0)

PRINCIPAL CHARACTERISTICS - TENDER

100’ WLI (BUCKTHORN), INLAND BUOY TENDER

PHYSICAL

Length overall 100' 0" Depth 7' 8" Maximum beam 24' 0" Frame spacing 1' 0" Full load draft 4' 9" LCF Draft Full load displacement 226.78 Long Tons FW

HULL

Hull material Steel

MACHINERY

Number of propellers 2 Number of blades 3 Diameter 44" Pitch 37" Shaft RPM 550

TANK CAPACITIES

Fuel tanks Fresh water tanks Lube oil

1 (Rev-0)

00000_0315_FLT

REC_00000_FLT_ Commercial Project @ Contractor’ Facility (1212)

General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting vessel repairs performed at a commercial contractor’s facility for Coast Guard vessels.

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and 'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.

NOTE

The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.

2 (Rev-0)

3.2 Contractor-provided fire watch personnel. The Contractor shall provide fire watch personnel and equipment.

3.3 Preservation requirements. The Contractor shall accomplish all preservation tasks, including touch-ups, in accordance with SFLC Std Spec 6310.

3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec 6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).

3.3.2 Coating colors and system color schemes. Ensure that all colors and color coat/paint schemes are in accordance with COMDTINST M10360.3, Chapter 6 (Cutter and Boat Colors Exterior and Interior).

NOTE

Unless a waiver has been granted (in writing) by the KO, deviations from authorized coatings (listed in Appendix C of SFLC Std Spec 6310) and colors and color schemes (provided in Chapter 6 of COMDTINST M10360.3) are strictly prohibited.

3.4 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and NDI in accordance with SFLC Std Spec 0740.

3.5 Environmental protection requirements. The Contractor shall adhere to the following environmental protection requirements in accordance with the SFLC Stand Spec 0000:

3.5.1 Contractor operated (non USCG) facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix A, Requirements for Environmental Protection at Contractor Operated (Non USCG) Facilities, as applicable, during the performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.2 Test and procedures. The Contractor shall be required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work shall be done by qualified laboratories; and where required by law, the laboratories shall be certified.

3.5.3 Regulatory notifications. The Contractor shall be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The Contractor shall submit copies of all regulatory notifications to the Contracting Officer and the local Facility Engineer or Engineering Officer prior to commencement of work activities. Regulatory notifications shall be provided for including but not limited to demolition, renovation, National Pollutant Discharge Elimination System (NPDES) defined site work, and remediation of controlled substances such as asbestos, hazardous waste, and lead paint.

3.5.4 Environmental manager. The Contractor shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall ensure compliance with Hazardous Waste Program requirements, including hazardous waste handling, storage, manifesting, and disposal; implement the Contractors’ Environmental Management Plan; ensure that all environmental permits are obtained, maintained, 3 (Rev-0) and closed out; ensure compliance with Storm Water Program Management requirements; ensure compliance with Hazardous Materials including storage, handling, and reporting requirements; as well as coordinate any remediation of regulated substances such as lead, asbestos, and polychlorinated biphenyl (PCB). This may be a collateral position; however the individual must be trained to adequately accomplish the following duties; ensure waste segregation and storage compatibility requirements are met; inspect and manage Satellite Accumulation areas; ensure only authorized personnel add wastes to containers; ensure all Contractor personnel are trained in 40 CFR requirements and individual position requirements; coordinate removal of waste containers; and maintain the Environmental Records binder and required documentation, including environmental permits compliance and close-out.

3.5.5 HW disposal. Contractor shall comply with SFLC Std Spec 0000 Appendix A, Requirements For Environmental Protection At Contractor Operated (Non USCG) Facilities for HW disposal.

3.6 Local Policy. None.

3.7 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2014 Edition Standard Specifications and supersede published content:

3.7.1 SFLC Standard Specification 6310, Requirements for Preservation of Ship Structures.

3.7.1.1 SFLC Std Spec 6310, page C-2, Section C1.5.1. Change from "lead-containing paint as 0.06%" to "lead-containing paint as 0.009%".

3.7.1.2 SFLC Std Spec 6310, page 4, Section 2 References, Group- Other References. Add “The Society for Protective Coatings (SSPC) Paint Application Guide No. 11, 2008, Protecting Edges, Crevices, and Irregular Steel Surfaces by Stripe Coating”

3.7.1.3 SFLC Std Spec 6310, page Appendix C-6, add "Hempel Hempadur Multi-Strength GF 35870" with FED- STD-595 color "Black/Red" under ANTI-ABRASION COATING, ICE BREAKING CAPABLE VESSELS, <235’.

3.7.1.4 Standard Spec 6310, page Appendix A-7, Under "UNDERWATER (U/W) BODY/BOOT-TOP", Add line Column 1: Option for U/W Body and Boot-Top, Steel Hulls, <154', in Salt Water. Column 2: Blank. Column 3:

SSPC-SP 10/NACE NO. 2 using grit conforming to MIL-A-22262 / (1.5-3.5) - or - SSPC-SP WJ-2(M)/NACE WJ-2(M). Columns 4 and 5: Same as "U/W Body and Boot-Top, Aluminum Hull, High Speed (>30 knots)".

3.7.2 SFLC Standard Specification 0000, General Requirements.

3.7.2.1 SFLC Std Spec 0000, paragraph 1.3 ‘Acronyms and term definitions’, page 5, “PCL (Paint Containing Lead)” definition replaced by, “Any paint or coating containing lead in excess of 0.009 percent by weight (1.0 mg/cm2 or 90 ppm). Lead Based Paint (LBP) is an interchangeable term with PCL.”

4. NOTES

4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 6310 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.

4 (Rev-0)

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

Vessel Name Hull # Work Item # Work Item Title

Location of Work (incl. frame #’s) Area (sqft)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

Ensure all coatings are in compliance with SFLC Std Spec 6310, Appendix C.

CHECKPOINT 2 - PAINT STORAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.

CHECKPOINT 3 - AMBIENT CONDITIONS

Ensure surface and surrounding temperatures are each between 50 and 90°F for water-containing coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).

Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).

Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.

CHECKPOINT 4 - PRE-SURFACE PREPARATION

Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down

(maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.

Verify equipment setup, blast media, and surface preparation methods match designated test coupon.

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-11, SP-10, SP WJ-2…).

Verify surface anchor profile using ASTM D4417-Methods B or C against SFLC Std Spec 6310. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.

Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max.

threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).

CHECKPOINT 6 - PRIMER COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Verify proper mixing and stand-in (induction) times.

Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.

Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).

Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.

Brush out all runs, sags, drips, and puddles.

Perform visual inspection for holidays and other defects.

CHECKPOINT 7 – STRIPE COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).

CHECKPOINT 8 – TOP COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

Verify proper mixing and stand-in (induction) times, as applicable.

Verify wet film thickness at random, to prevent under or over application.

Brush out all runs, sags, drips, and puddles.

CHECKPOINT 9 – FINAL INSPECTION

Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.

Ensure that system cure is in accordance with manufacturer's recommendation for intended service.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

For immersion coatings (including tank U/W body), record date and time of the following events:

Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____

CHECKPOINT 10 – RECORD KEEPING

Complete, sign, and submit all provided QA Inspection Forms.

Name of QP-1/NACE Inspector Signature Cert. # Date / Time

5 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

DATE &

TIME

ACTIVITY

(Surface preparation, primer coat, barrier coat, top coat, etc…)

LOCATION

(Frame & Deck, relation to equipment, etc.)

TEMPERATURE

% REL.

HUMID-

ITY DEW

PT.

SURFACE AMBIENT

ΔT

| DP -

Surface |

6 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)

Location of Work (Frame References) Area (sqft)

SURFACE PREPARATION METHOD

PROFILE ACHIEVED (mils) Min Max Mean

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and Sieve Size: _________________________________

Place surface profile replica tapes in the spaces provided below, to serve as permanent QA record. Maintain a separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils

Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings: ______________

7 (Rev-0)

8 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)

SURFACE PREPARATION METHOD

PROFILE ACHIEVED (mils) Min Max Mean

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and Sieve Size: _________________________________

Record measurements taken in the spaces provided below, to serve as permanent QA record. Maintain separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils Mean Mil Reading (IAW ASTM D4417-Method B) for above 10 readings (by column):

_____ mils _____ mils _____ mils _____ mils _____ mils

9 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15

DATE TEST LOCATIONS

CONDUCTIVITY

(microsiemens/cm)

10 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Coating Mfg Product Name Batch # Induction

Time Coating System Sequence

(Primer/Touchup/3rd Coat, etc.)

DRY FILM THICKNESS (DFT) MEASUREMENTS IAW SSPC-PA 2

SPOT 1 2 3 4 5

AVERAGE

VALUE

*BASE METAL

READING (BMR)

*Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before Adjustments

After Adjustments

Avg.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before Adjustments

After Adjustments

Avg.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before Adjustments

After Adjustments

Avg.

Application Method (Airless, Conventional Spray, Rolled) Average DFT

11 (Rev-0)

11400_0415_FLT

REC_11400_UWAppndgs_FLT_100’ WLI (642 CGC BUCKTHORN)(1011)

WORK ITEM 1: Appendages (U/W), Leak Test

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to perform leak test of the U/W appendages.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 642 WAGL 700-001, Rev E, Docking Plan

Coast Guard Drawing 642 WAGL 1101-001, Rev L, Shell Expansion

Coast Guard Drawing 642 WAGL 1103-002, Rev C, Skeg

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

OTHER REFERENCES

ASTM International (ASTM) D5363, 2008; Standard Specification for Anaerobic Single- Component Adhesives (An)

MIL-S-45180, 1998; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph:

3.2 Leak test particulars.

3.4 Appendage air test.

12 (Rev-0)

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Leak test. In the presence of the Coast Guard Inspector, the Contractor shall accomplish the following tasks for all appendages as designated in Table 1 below, using the Coast Guard drawings listed in Section 2 (References) as guidance:

Remove and dispose of the existing drain plugs.

Submit a CIR noting any liquids draining from any of the appendages – indicating the presence of a leak.

Dispose of any drained liquids in accordance with all Federal, state, and local laws and regulations.

CAUTION

Some liquids that are drained may be may be classified as hazardous materials or hazardous waste depending on state and local regulations. The vessel environmental coordinator may assist with determination of waste category.

3.3 Plug renewal. Upon completion of all work on appendages, the Contractor shall accomplish the following tasks:

Chase the hull insert threads of all plugs.

Renew stainless steel, Type 316 and Monel drain plugs (as applicable) in place of those removed.

Coat new plugs prior to installation with a sealing and locking compound conforming to ASTM D5363-AN0123 or a flexible joint compound conforming to MIL-S-45180, Type II.

TABLE 1 – DRAIN PLUGS FOR U/W APPENDAGES

APPENDAGE FRAME SIDE

Skeg 68 to 88 CL

Gunwale pipe Stem to Stern P/S

Transducer Fairing (2)

27 CL

13 (Rev-0)

3.4 Appendage air test. The Contractor shall accomplish the following tasks for any appendage from the above list designated by the Coast Guard Inspector, with an approved Change Request resulting from the CIR from paragraph 3.2:

Perform an air test of the appendage, in accordance with SFLC Std Spec 0740, Appendix C.

Submit a CIR.

4. NOTES

This section is not applicable.

14 (Rev-0)

11401_RPGRD_0814_FLT

REC_11401_RPGRD_FLT_100 WLI (642 CGC BUCKTHORN) (0813)

WORK ITEM 2: Propulsion Shaft Rope Guards, Inspect and Repair

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to inspect the propulsion shaft rope guards.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 642 WAGL 4301-003, Rev A, Shafting & Bearings

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, 2007, Near-White Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No.5, 2007, Surface Preparation and Cleaning of Steel & Other Hard Materials by High and Ultrahigh Pressure Water Jetting

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

15 (Rev-0)

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Work coordination. The Contractor shall coordinate the inspection tasks specified herein with all propeller shaft-related and U/W body hull preservation tasks, as specified in other work items in this specification package.

3.3 Removals. The Contractor shall accomplish the following tasks:

3.3.1 Remove and retain existing rope guards.

3.3.3 Grind smooth any welding left on struts after the removal of rope guards.

3.3.4 Clean all surfaces thoroughly.

3.4 Inspection particulars. The Contractor shall accomplish the following tasks, using the referenced drawings as guidance:

3.4.1 Prepare and coat the rope guard surfaces in accordance with COMDTINST M10360, using the system specified for “s to the equivalent of a “SSPC-SP 10/NACE No. 2, Near-White Blast Cleaning”, with a 1.5 to 2.5 mil anchor profile; or to "SSPC-SP 12/NACE No. 5, WJ-2/L.”

3.4.2 Visually inspect all fairwater and rope guard surfaces, including hardware mounting brackets/surfaces for corrosion, cracks, and all other defects. Submit a CFR.

3.4.3 Prime and coat all fairwater and rope guard surfaces in conjunction with all other U/W hull preservation tasks, using the coating system specified for “Underwater Water (U/W) Body and Boot-Top (U/W Body and Boot-Top, Icebreaker <235’, in Fresh Water (Excluding Sea Chest)” in SFLC STD SPEC 6310, Appendix A (Cutter and Boat Exterior Painting Systems..

3.5 Reinstallation. The Contractor shall reinstall rope guards, after coating system has cured sufficiently to prevent being damaged. Renew all fasteners.

This section is not applicable to this work item.

16 (Rev-0)

24310_0715_FLT

REC_24310_FLT_100 WLI (642 CGC BUCKTHORN) (0310)

WORK ITEM 3: Propulsion Shafting, Remove, Inspect, and Reinstall

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to remove, inspect, and reinstall the propeller shaft.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y **Propeller shaft NSN: 2 ea.

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 642 WAGL 4301-003, Rev A, Shafting & Bearings

Coast Guard Drawing 642 WAGL 4301-002, Rev -, Propulsion Shaft Alignment

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

OTHER REFERENCES

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph(s):

17 (Rev-0)

3.2.1 Initial shaft coupling alignment check

3.2.3 Inspections

3.5 Government’s right for changing out shaft(s)

3.1.2 Tech Rep.

Not Applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the below-listed:

Deck plates.

Cat walk over the shaft

Rope guard.

Fairwater.

3.2 Work to be accomplished. Using Coast Guard Drawing 642 WAGL 4301-001 and 642 WAGL 4301-002 as guidance, as applicable, the Contractor shall accomplish the following:

3.2.1 Initial shaft coupling alignment check. Prior to the vessel’s initial drydocking, perform the bore and face alignment between the reduction gear output flange and shaft coupling as follows and Submit A CIR:

Angular (face-to-face) readings in 4 positions at 90° intervals;

Parallel (coupling OD-to-coupling OD) readings in 12 positions at 30° intervals.

NOTE

The following methods for obtaining coupling/hub alignment measurements are acceptable:

1) Dial indicator to obtain total indicator run-out

2) Straight edge or feeler gage.

3.2.2 Removals.

CAUTION

Be aware historically couplings have been difficult to remove, often requiring added heat to loosen.

Ensure shaft is protected and supported at all bearing journals (minimum), at all times, until reinstallation.

18 (Rev-0)

When transporting/moving/lifting, ensure the shaft is supported at all times at a minimum of three locations along the shaft.

Provide proper support to the reduction gear shaft flanges to prevent sagging.

Mark existing shaft position, and match-mark shaft coupling bolts to their respective holes, to facilitate reinstallation procedures.

Remove the shaft and attached components (as applicable) to a suitable repair facility.

3.2.3 Inspections. Clean the shaft free of all marine growth and surface contaminants, and accomplish the following inspections, as applicable (Submit A CIR):

3.2.3.1 Visual inspections. Visually inspect the following components, as applicable, for excessive wear and other mechanical defects such as nicks, cracks, and corrosion, etc. Determine the extent of repairs required for each stern tube assembly, if any.

Shaft surfaces.

Bearings, bearing carriers, epoxy-resin chocking and associated fasteners (as applicable).

All shaft and propeller-associated fasteners.

Stern tube surfaces (including seal flange as applicable).

Couplings.

Stern tube/shaft sealing systems.

3.2.3.2 Complete the following measurements:

NOTE(S)

Before taking shaft runout readings, slowly spin the shaft on a lathe for approximately two hours to eliminate any sagging that may have occurred during handling and storage.

Measure keys and keyways.

Measure all bearing sleeve or journal diameters.

Measure shaft runouts by supporting the shaft on precision rollers, or V blocks either at 42-inch interval (permissible variation (through one revolution is 0.008”), or within 2 inches of both ends (permissible variation through on revolution is .052”).

Take reading between the supports

3.3 Reinstallation. The Contractor shall reinstall the propeller shaft to its original configuration and accomplish the following, using Coast Guard Drawing 642 WAGL 4301-001 and 642 WAGL 4301-002, as applicable.

3.3.1 Machine, grind, or hand-stone couplings, if necessary, to achieve an 80 percent contact.

True couplings to shaft by cutting coupling faces and land area.

3.3.2 Renew all stainless steel self-locking nuts for packing glands.

19 (Rev-0)

3.3.3 Renew all packing materials.

3.4 Final shaft coupling alignment check. The Contractor shall accomplish the following:

3.4.1 When the vessel is waterborne, check angular (face gap) alignment. Ensure shaft is restrained from moving aft. Angular misalignment reading shall be obtained with the coupling the coupling flanges 1/8” to 3/16” apart (hub registers remain engaged) and recorded at the 12, 3, 6, and 9 O’clock positions. Use a feeler gauge to determine gaps at the four positions. Rotate both shafts 90 degree and take reading again. Return the shaft to 12 o’clock and take the readings a third time. Compare results to initial readings (Pre-work) and submit a CFR. Generally for proper shaft alignment, each set of readings, the difference between readings at 12 and 6 O’clock and between 3 and 9 O’clock is kept within 0.005 inches.

3.4.2 When the vessel is waterborne, check parallel (rim) alignment. Parallel alignment checks will determines the centerline offsets between reduction gear and propulsion shafts. Parallel misalignment reading shall be obtained with the coupling flanges approximately 5/16” apart (coupling register is disengaged) and recorded at the 12, 3, 6, and 9 O’clock positions.

Measurements may be taken with a dial indicator set-up, or if that is not available a rough check may be made with a straight edge and feeler gauge technique. Compare results to initial readings (Pre-work) and submit a CFR with the results (a) the amount one shaft is lower than the other (determined from vertical plane readings at 12 and 6 O’clock), and (b) the amount the propeller shaft is inboard or outboard of the reduction gear (determined from horizontal plane readings at 3 and 9 O’clock). Generally for proper shaft alignment, parallel misalignment is kept within 0.005 inches (if dial indicator was used this is 0.010” TIR).

3.5 Government’s right for changing out shaft(s). The Contractor shall be aware that the Government reserves the right to furnish a new shaft for installation in place of the existing shaft.

If the Government exercises this right, the Contractor shall transport the spare shaft to a suitable inspection facility, and perform the inspections specified in paragraph 3.2.3 (Inspections) and Submit A CIR. The Contractor shall turn over the removed shaft to the Coast Guard PA as an MTI item.

3.6 Operational test – post repairs. After completion of work, the Contractor shall witness an operational test (by Coast Guard personnel) of the shafting system, for a minimum of 4 hours, to prove satisfactory operating condition. Submit a CFR.

20 (Rev-0)

24400_0814_FLT

REC_24400_FLT_100 WLI (642 CGC BUCKTHORN) (0110)

WORK ITEM 4: Propulsion Shaft Bearings (External), Check Clearances

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to take propulsion shaft bearing (external) clearances.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 642 WAGL 4301-003, Rev A, Shafting & Bearings

Coast Guard Drawing 642 WAGL 4301-002, Rev -, Propulsion Shaft Alignment

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph:

3.2.2 (Bearing clearances)

21 (Rev-0)

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the below-listed:

None.

3.2 Bearing inspection particulars. Upon drydocking, the Contractor shall accomplish the following using Coast Guard Drawing 642 WAGL 4301-001 and 642 WAGL 4301-002 as guidance:

3.2.1 Cleaning. The Contractor shall thoroughly clean and visually inspect each external (water-lubricated) bearing. Submit a CFR.

3.2.2 Bearing clearances. In the presence of the Coast Guard Inspector, the Contractor shall measure and record all external propulsion shaft bearing clearances. Submit A CIR.

NOTE

General guidance minimum and maximum operating bearing clearances are as follows. If no other bearing clearance limit criteria exists (e.g. Drawing notes or other Coast Guard standards), these numbers may be used to determine when bearing clearances are excessive and bearing renewal should be considered.

TABLE 1 – OPERATING CLEARANCES

DIAMETER OF

JOURNAL

(INCHES)

MINIMUM OPERATING

CLEARANCE OF NEW WATER-

LUBRICATED BEARINGS

(INCHES)*

MAXIMUM OPERATING

CLEARANCE OF WATER-

LUBRICATED BEARINGS

(INCHES)

2 to 2.499 0.017 0.091

2.5 to 2.99 0.018 0.100 3 to 3.99 0.020 0.107 4 to 4.99 0.022 0.120

5 to 5.995 0.025 0.131 6 to 6.99 0.027 0.142 7 to 7.99 0.030 0.154 8 to 8.99 0.032 0.165 9 to 9.99 0.035 0.177

10 to 10.99 0.037 0.187 11 to 11.99 0.040 0.197 12 to 12.99 0.042 0.207 13 to 13.99 0.045 0.217 14 to 14.99 0.047 0.225 15 to 15.99 0.050 0.235

*In-service bearings shall have the same minimum operating clearances as new bearings.

22 (Rev-0)

3.2.3 Hardware. The Contractor shall inspect for missing hardware. Reinstall any removed components, such as bearing retaining rings.

23 (Rev-0)

24500_1114_FLT

REC_24500_FLT_100’ WLI (642 CGC Buckthorn) (0415)

WORK ITEM 5: Propeller, Remove, Inspect, and Reinstall

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to remove, inspect, and reinstall designated propeller.

MTI ITEM

DESCRIPTION

NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y **Propeller, right hand NSN: 2010-01-F08-1386

PN: 642 WAGL-4400-1 RH

1 ea. 7,200.00

Y **Propeller, left hand NSN: 2010-01-F03-0148

PN: 642…

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