TACKLE__WYTL_65A__DD_FQ3_TJR_16R0.pdf
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| Past_Performance_Questionnaire.docx | DOCX document | |
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USCGC TACKLE (WYTL 65604)
SPECIFICATION FOR DRYDOCK REPAIRS
FY2016
Developed By: Tyler J Richardson
(Rev-0, 22 December 2015)
USCGC TACKLE (WYTL-65A) DRYDOCK AVAILABILITY FY2016
ii (Rev-0)
TABLE OF CONTENTS
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 65 WYT 101-001, Rev A, Construction Plan and Sections
Coast Guard Drawing 65 WYT 103-002, Rev B, Outboard, Inboard Profile and General Arrangement
Coast Guard Drawing 65 WYT 103-003, Rev -, Booklet of General Plans
Coast Guard Drawing 65 WYT 1101-001, Rev B, Superstructure Plan & Dets
Coast Guard Drawing 65 WYT 1101-003, Rev A, Inboard Construction Profile and Sections
Coast Guard Drawing 65 WYT 1112-001, Rev A, Strut, Skeg, Main Engine and Generator Foundation Details
Coast Guard Drawing 65 WYT 1201-002, Rev -, Tow Rail & Guard Rails
Coast Guard Drawing 65 WYT 1901-001, Rev -, Painting, Insulation, Sheathing & Deck Covering Schedule
Coast Guard Drawing 65 WYT 191-001, Rev A, Ballast Box Arrg’t. & Details
Coast Guard Drawing 65 WYT 2200-001, Rev B, Rudder Drawing
Coast Guard Drawing 65 WYT 2200-002, Rev -, Steering Gear
Coast Guard Drawing 65 WYT 2901-005, Rev A, Curves of Form
Coast Guard Drawing 65 WYT 3801-002, Rev -, Heating A/C & Vent
Coast Guard Drawing 65 WYT 4000-001, Rev A, Machinery Arrangement
Coast Guard Drawing 65 WYT 4103-003, Rev -, Exhaust Piping
Coast Guard Drawing 65 WYT 4301-002, Rev J, 65601 Thru 65615 Shafting Plan
Coast Guard Drawing 65 WYT 4400-003, Rev C, Propeller
Coast Guard Drawing 65 WYT 4504-001, Rev -, Fuel Oil Piping v (Rev-0)
Coast Guard Drawing 65 WYT 500-001, Rev -, Lines and Offsets
Coast Guard Drawing 65 WYT 5501-003, Rev -, Gen Fuel Oil Piping Arrgt D/G Replacement (TACKLE 65604)
Coast Guard Drawing 65 WYT 700-003, Rev -, Docking Block Arrangement (‘A’ Class)
Coast Guard Drawing 65 WYT 9300-003, Rev B, Fire Alarm / Detection System Mods
Coast Guard Drawing 65B WYT 103-003, Rev -, Booklet of General Plans (65607-65609)
Coast Guard Drawing 65B WYT 103-006, Rev D, Deck and Hold Arrangements (65613-65615)
Coast Guard Drawing 65B WYT 103-014, Rev -, Booklet of General Plans (65610-65612)
Coast Guard Drawing 65B WYT 1602-001, Rev -, Doors, Hatches, Scuttles & Manholes
Coast Guard Drawing 65B WYT 4103-004, Rev C, Engine Starting F/O and Engine Cooling System Arrangement and Details (65613-15)
Coast Guard Drawing 65B WYT 4301-004, Rev A, Propulsion Shaft Single Sheet Detail
Coast Guard Drawing FL 6713-201, Rev B, CRP-V850 Transducer (B-14) Adapter Assembly
NAVSEA Drawing 803-921865, Rev R, Cathodic Protection Hull Zinc Anodes
NAVSEA Drawing 804-5773931, Rev A, Acoustic & Thermal Insulation For Compartments Installation Details
COAST GUARD PUBLICATIONS
Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual
Coast Guard Commandant Instruction (COMDTINST) M9000.6, Oct 2004, Naval Engineering Manual
(NEM)
Coast Guard Technical Publication (TP) 1747, General Information Book
Coast Guard Technical Publication (TP) 3210, Feb 2005, Manufacturer's Instruction Book-SWBS Group(s)(s) 555
Coast Guard TP 3957, SWBS 555, Feb. 2005, Fire Alarm Control Panel-Autopulse IQ 301
NAVSEA Drawing 804-5773931, Rev A, Acoustic & Thermal Insulation For Compartments Installation Details
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 3041 (SFLC Std Spec 3041), 2014, Shipboard Electrical Cable Test
Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2014, Shipboard Electrical Cable Removal, Relocation, Splice, Repair, and Installation
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 vi (Rev-0)
Surface Forces Logistics Center Standard Specification 8636 (SFLC Std Spec 8636), 2014, Temporary Hull Accesses
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 Welding Society (AWS) D1.2, 2008, Structural Welding Code - Aluminum
ASTM International (ASTM) 6966, 2008, Standard Practice for Collection of Settled Dust Samples Using Wipe Sampling Methods for Subsequent Determination of Metals
ASTM International (ASTM) A36, 2008, Standard Specification for Carbon Structural Steel
ASTM International (ASTM) D1330, 2010, Standard Specification for Rubber Sheet Gaskets
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)
Code of Federal Regulations (CFR) Title 29, Part 1910, Jul 2008, Occupational Safety and Health Standards
Code of Federal Regulations (CFR) Title 29, Part 1910, Subpart Z, 1910.1025, 2011, Toxic and Hazardous Substances-Lead
Code of Federal Regulations (CFR) Title 29, Part 1915, Jul 2013, Occupational Safety and Health Standards for Shipyard Employment
Code of Federal Regulations (CFR) Title 46, Part 147, Section 65, 2007, Coast Guard, Department of Homeland Securtiy, Carbon Dioxide and Halon Fire Extinguishing Systems.
COMDTPUB P16700.4, NVIC 3-95, 6/19/1995; Periodic Inspection and Testing of Fixed Halon Fire Fighting Equipment Aboard Mechant Vessels
Commercial Item Description (CID) A-A-52624, Nov 2008, Antifreeze, Multi Engine Type, Ethylene Glycol (For Caterpillar equipment applications, use CAT Extended Life Pre-Mix coolant.)
Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Anti-seize, Zinc Dust- Petrolatum
Commercial Item Description (CID) A-A-59588, 2005, Rubber Silicone
Federal Specification (Fed Spec) HH-P-151, Mar 1991, Packing; Rubber-Sheet, Cloth-Insert
Federal Specification (Fed Spec) QQ-L-171, Mar 1988, Lead Pig
Fernstrum Gridcooler Installation and Maintenance Manual, 2006, Form 165
Furuno Integrated Heading Sensor PG-1000 Operator’s Manual.(See Figure 1)
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
International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller - Manufacturing tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50m, Inclusive
MIL-A-18001, May 2005, Anodes, Sacrificial Zinc Alloy (Commercially Accepted - ASTM B418)
MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning
MIL-A-24456, Jun 1979, Adhesive for Plastic Vibration-Damping Tile
MIL-PRF-1149, Jun 1998, Gasket Materials, Synthetic Rubber, 50 and 65 Durometer Hardness
MIL-PRF-16173, 2006, Corrosion Prevention Compound, Solvent Cutback, Cold-Application
MIL-PRF-23236, Sep 2009, Coating Systems for Ship Structure vii (Rev-0)
MIL-PRF-24647, Apr 2013, Paint System, Anticorrosive and Antifouling, Ship Hull
MIL-PRF-83483, 1998, Thread Compound, Anti-Seize, Molybdenum Disulfide-Petrolatum.
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-T-24558/18 (SH), Terminal Boxes, Connection
National Fire Protection Association (NFPA) 12A, Jan 2009, Standard on Halon 1301 Fire Extinguishing Systems
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 11), 2004, Power Tool Cleaning
The Society for Protective Coatings (SSPC), May 2012, Paint Application Specification No. 2 (PA-2), Measurement of Dry Coating Thickness with Magnetic Gages
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, 2002, Surface Preparation and Cleaning of Metals by Waterjetting Prior to Recoating viii (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)
5 Y **Propeller shaft NSN: 2010-01-534-9802 1 ea. 5,200.00 5 N Mechanical seal assembly NSN: 4320-01-497-8057 1 ea. 3,397.35
5 N Bronze cutless bearing
Duramax Model # EASE 1 ea. 383.38
6 Y Propeller NSN: 2010-01-482-6135 1 ea. 6,561.81 6 Y Modified Coupler
Knut NSN: 1 ea.
6 Y Stepper Key, Propeller
NSN: 1 ea.
8 N Engine coolant – Brand CAT ELC 50/50 Pre-Mix
PN: 16334, CPS236334 110 gal NA
8 N SSDG Gasket Set PN: GB12-1A 2 61.40 8 N MDE Gasket Set PN: GD12-2C 1 88.75 16 Y *Transducer Cover
Plate N/A 1 ea. 50.00
18 N ***Fathometer Transducer, Shallow Water, 50-200 kHz
(Airmar Technology
SS505)
NSN: 5845-01-470-2500 1 ea. 148.92
39 N QAWT Door 2-13-0 Left Hand, Steel, 26x66 inches*
Overbeke – Kain #M128A 1 ea. $5500
39 N QAWT Door 2-19-2 Right Hand, Steel, 26x45 inches*
Overbeke – Kain #M128A 1 ea. $5500
41 N Gems LS-270,Liquid Switch Sensor
NSN: 6680014321038, PN:
LS - 270
7 ea. $113.42
41 N Cable Shielded, #18
AWG, 2-
Conductors, MIL-
DTL-24643/33
NSN: 6145-01-205-3632
PN: LS2SWU-1
10 ft/ As required.
$0.47/ft
*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 ix (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
2 Hull Plating (U/W Body), Ultrasonic Testing
3 Appendages (U/W), Leak Test
8 Keel Coolers, Clean, Inspect and Hydro
12 Rudder Assembly; Remove, Inspect and Reinstall
14 U/W Body, Preserve (100%)
30 Propulsion Shaft Bearings (External), Check Clearances
38 Galley & Messdeck Deck Covering, Replacement
43 Bilge Surfaces (Engine Room), Preserve (“100%”)
44 Fuel Piping, Renew x (Rev-0)
PRINCIPAL CHARACTERISTICS - TENDER
65' WYTL (A-CLASS: 65601, 65602, 65604)
PHYSICAL
Length overall 64' 10-1/2" Depth 8' 11" Maximum beam 19' 3/8" Height of highest projection 27' 10" Full load draft 4' 11 5/8" LCF Draft Full load displacement 73.7 Long Tons SW Shore tie voltage requirements 440 V Frame spacing 1' 6"
HULL
Hull/main weatherdeck material Superstructure
MACHINERY
Number of propellers 1 Number of blades 4 Diameter of propeller 54" Pitch 46"
RPM 400
Shaft diameter 3.5
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)
6 (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 |
7 (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
8 (Rev-0)
Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings: ______________
9 (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
10 (Rev-0)
11 (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)
12 (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
13 (Rev-0)
11000_0815_FLT
REC_11000_UWHIB_FLT_65’ WYTL (ALL)(1211)
WORK ITEM 1: Hull Plating (U/W Body), Inspect
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to inspect/survey the vessel’s Under Water (U/W) hull plating, including U/W appendages and coating system.
1.2 Government-furnished property.
None.
2. REFERENCES
COAST GUARD DRAWINGS
Coast Guard Drawing 65 WYT 700-003, Rev -, Docking Block Arrangement (‘A’ Class)
Coast Guard Drawing 65 WYT 1101-003, Rev A, Inboard Construction Profile and Sections
COAST GUARD PUBLICATIONS
Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements
OTHER REFERENCES
ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means
The Society for Protective Coatings (SSPC), May 2012, Paint Application Specification No. 2 (PA-2), Measurement of Dry Coating Thickness with Magnetic Gages
3. REQUIREMENTS
3.1 General.
3.1.1 CIR.
None.
3.1.2 Tech Rep.
14 (Rev-0)
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 Inspection. The Contractor shall accompany the Underwater Hull Inspection Board (UWHIB) in the performance of the below inspection tasks, as applicable, using the drawings listed in Section 2 (References) as guidance. The Contractor shall provide the following, to facilitate the UWHIB in assessing the condition of the designated U/W hull components and systems:
A hull repair supervisor and a marker.
Temporary staging and other necessary equipment, as applicable, for ensuring safe access to all areas of the U/W hull.
NOTES
1. The COR will convene the UWHIB as soon as possible after the vessel has been dry-docked and before any work (except U/W hull cleaning/wash down) is performed on the U/W hull and appendages.
2. Some of the components and/or systems addressed in this work item may not be applicable to all vessel classes.
3.2.1 Hull plating.
3.2.1.1 The Contractor shall inspect the condition of the hull plating (including thruster tunnel plating, as applicable), for the presence of marine growth, deformation, and any evidence of major corrosion or electrolytic action.
3.2.1.2 The Contractor shall inspect the hull and keel areas, report on the condition of butt-welded seams, doubler plates, lap seams, and for any signs of damaged plating or unusual waviness in the plating.
3.2.2 Sea chests and all other cooling system intake components. The Contractor shall inspect all sea chests, tunnels, hull openings, and grates for general appearance, loose, damaged, or missing grates, loose or missing fasteners, condition of sea strainers and lockwire on bolts, marine growth on grating slots, and any obstructions in the openings that might prevent proper suction and discharge of water.
3.2.3 Rudders. The Contractor shall check general condition, condition around the drain plugs, and check for pitting, if any, on the leading and trailing edges.
3.2.4 Propeller and shaft associated components. The Contractor shall inspect the condition of propellers for propellers for signs of corrosion, pitting, erosion, fouling, cracks, dings, and nicks by side and blade; inspect fairwaters, rope guards, shafts, and mechanical seals - look for missing screws, physical damage to the blades, pitting, condition of dunce caps, and condition of securing
15 (Rev-0) devices.
3.2.5 Transducers. The Contractor shall check general condition for cuts, cracks, corrosion, and surface defects around the openings. Check transducer securing nuts for tightness, and inspect cables for chafing and other damage.
3.2.6 Zinc anodes.
3.2.6.1 The Contractor shall remove all marine growth and oxide coating from all hull, rudder, shaft strut, sea chest, z-drive, and thruster tunnel zinc anodes, or water jet drives anodes, as applicable, using a light-wire brush.
3.2.6.2 The Contractor shall visually inspect all zinc anodes; check the soundness of mounting strap and stud welds, missing fasteners, and percentage of remaining material.
4. NOTES
4.2 UWHIB convention. The COR will convene the UWHIB as soon as possible after the vessel has been dry-docked and before any work (except U/W hull cleaning/wash down) is performed on the U/W hull and appendages.
16 (Rev-0)
11010_UT_0712_FLT
REC_11010_UT_FLT_65’ WYTL (‘A’ Class: Hulls 65601, 65602, 65604) (0911)
WORK ITEM 2: Hull Plating (U/W Body), Ultrasonic Testing
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to conduct ultrasonic testing (UT) of U/W hull plating.
1.2 Government-furnished property.
None.
2. REFERENCES
COAST GUARD DRAWINGS
Coast Guard Drawing 65 WYT 700-003, Rev -, Docking Block Arrangement (‘A’ Class)
Coast Guard Drawing 65 WYT 1101-003, Rev A, Inboard Construction Profile and Sections
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:
3.2 (UT measurements).
17 (Rev-0) 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 UT measurements. The Contractor shall perform a total of 200 UT measurements of U/W hull surfaces, in locations designated by the Coast Guard Inspector, using Coast Guard Drawings 65 WYT 0700-003 and 65 WYT 1101-003 for guidance, in accordance with SFLC Std Spec 0740, Appendix C. Mark up a copy of Coast Guard Drawing 65 WYT 1101-003 to show all locations selected for measurement and record all measurements in Table I (UT Measurements Summary Sheet - Port/Stbd Shell) provided at the end of this item. Submit A CIR, to also include the marked up drawing and completed Table I.
4. NOTES
4.1 UT Table. Table 1 provided below is for the recording of all UT measurements.
18 (Rev-0)
TABLE 1 - UT MEASUREMENTS SUMMARY SHEET PORT/STBD SHELL
SHOT # STRAKE # FWD/MID/AFT ORIG PL MEASURED PL PERCENT
PLATE # TOP/MID/BOT THICKNESS THICKNESS WASTAGE
19 (Rev-0)
11400_0415_FLT
REC_11400_UWAppndgs_FLT_65’ WYTL (‘A’ Class: Hulls 65601, 65602, 65604) (1011)
WORK ITEM 3: 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 65 WYT 700-003, Rev -, Docking Block Arrangement (‘A’ Class)
Coast Guard Drawing 65 WYT 1101-003, Rev A, Inboard Construction Profile and Sections
Coast Guard Drawing 65 WYT 1112-001, Rev A, Strut, Skeg, Main Engine and Generator Foundation Details
Coast Guard Drawing 65 WYT 2200-001, Rev B, Rudder Drawing
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.
20 (Rev-0)
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.
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 19 to 41 CL Fwd Skeg 5 to 12 CL
21 (Rev-0)
Strut 40 to 41 CL Transducer Fairing
13 S
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.
This section is not applicable.
22 (Rev-0)
11402_UW_APPENDAGES_0712_FLT
REC_11400_UW_Appendages_FLT_65’ WYTL (‘A’ Class: Hulls 65601, 65602, 65604) (1011)
WORK ITEM 4: Appendages (U/W) - Internal, Preserve
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to preserve internal surfaces of designated U/W appendage(s) (see Table 1).
1.2 Government-furnished property.
None.
2. REFERENCES
COAST GUARD DRAWINGS
Coast Guard Drawing 65 WYT 700-003, Rev -, Docking Block Arrangement (‘A’ Class)
Coast Guard Drawing 65 WYT 1101-003, Rev A, Inboard Construction Profile and Sections
Coast Guard Drawing 65 WYT 1112-001, Rev A, Strut, Skeg, Main Engine and Generator Foundation Details
Coast Guard Drawing 65 WYT 2200-001, Rev B, Rudder Drawing
COAST GUARD PUBLICATIONS
Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements
OTHER REFERENCES
MIL-PRF-16173, 2006, Corrosion Prevention Compound, Solvent Cutback, Cold- Application
3. REQUIREMENTS
3.1 General.
3.1.1 CIR.
23 (Rev-0) 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 Preservation of void internal surfaces. The Contractor shall accomplish the following tasks for each appendage designated by the Coast Guard Inspector, using the Coast Guard Drawings listed in Section 2 (References) herein as guidance:
Fill all appendage interior surfaces with a rust preventive compound conforming to MIL-PRF-16173, Class II, Grade 3, to coat all surfaces.
Drain, collect, and dispose of remaining compound in accordance with all applicable Federal, state, and local regulations.
Ensure that the coated surfaces are left exposed to the atmosphere for 24 hours to allow for adequate drying.
TABLE 1 - DRAIN PLUGS FOR U/W APPENDAGES
APPENDAGE FRAME SIDE
Skeg 19 to 41 CL Fwd Skeg 5 to 12 CL Strut 40 to 41 CL Transducer Fairing 13 S
This section is not applicable to this work item.
24 (Rev-0)
24315_DCH_0814_65 WYTL
WORK ITEM 5: Propulsion Shafting, Renew
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to renew the propeller shaft.
1.2 Government-furnished property.
MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED
COST
($/UNIT)
Y **Propeller shaft NSN: 2010-01-534-9802 1 ea. 5,200.00 N Mechanical seal assembly NSN: 4320-01-497-8057 1 ea. 3,397.35 N Bronze cutless bearing Duramax Model # EASE 1 ea. 383.38 **New or refurbished equipment that the Government may provide for installation in place of existing equipment.
2. REFERENCES
COAST GUARD DRAWINGS
Coast Guard Drawing 65 WYT 4301-002, Rev J, 65601 Thru 65615 Shafting Plan
Coast Guard Drawing 65 WYT 4400-003, Rev C, Propeller
Coast Guard Drawing 65B WYT 4301-004, Rev A, Propulsion Shaft Single Sheet Detail
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
Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures
OTHER REFERENCES
25 (Rev-0)
3.1.1 CIR.
None.
3.1.2 Tech Rep.
Not applicable.
3.1.3 Protective measures - general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces in the vicinity of 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:
Fairwater.
3.2 Work particulars. Using Coast Guard Drawing 65B WYT 4301-004, 65B WYT 4400-003 and 65 WYT 4301-002 as guidance, as applicable, the Contractor shall accomplish the following:
NOTE
Before taking shaft runout readings, spin the shaft on a lathe for approximately two hours at maximum rated RPM's to eliminate any sagging that may have occurred during handling and storage.
3.2.1 Measurements. Perform the following tasks for the new Government-furnished propeller shaft:
Check the straightness by measuring the total indicator run out of the propeller shaft.
Before taking shaft run out readings, spin the shaft on a lathe for approximately two hours at the maximum rated RPM to eliminate any sagging that may have occurred during handling and storage.
Measure the shaft journal diameters and runout in way of aft and mid strut bearings, and seal assembly.
Check run-out of the shaft tapers and journals.
Check the face and bore runouts on the shaft coupling.
3.2.2 Shaft alignment. After removal of the propeller shaft, check and monitor the alignment of the stern tube, struts, and bearing housing bores relative to the shaft centerline including any offsets using an optical method (bore sighting) or taut wire method. This inspection shall be done within 72 hours after the shaft is removed so that any misalignment can be corrected in a timely
26 (Rev-0) fashion. Take all readings at night, between midnight and dawn, to reduce the thermal distortion on the hull due to sunlight.
3.2.2.1 Take the initial reading and establish a baseline.
3.2.2.2 The shaft center reference line established by optical or piano wire method shall start from the center of reduction gear output shaft flange to a fixed point location where the propeller hub is centered.
3.2.2.3 Use as many reference points as possible to show if the bearing bores have been affected by the structural repair or hot work. Submit a CFR of how the shaft center reference line is established, locations of fix points, and any bearing offsets as noted.
3.2.2.4 Submit a CFR of findings, include any recommended repairs if the shaft alignment was affected by the structural repair or hot work.
3.2.3 Removal. Remove the existing propeller shaft, using Coast Guard Drawing 65B WYT 4301-4 and 65B WYT 4400-3 as guidance. Dispose of the removed shaft in accordance with all Federal, State, and local regulations.
3.2.4 Reinstallation. Install the new Government-furnished propeller shaft in the existing bearing positions. 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, using Coast Guard Drawing 65B WYT 4301-004, 65B WYT 4400-003 for guidance, as applicable.
3.2.5 Alignment between coupling flanges. Check and correct reduction gear/propeller shaft alignment upon reinstallation and the final coupling of the reduction gear and propulsion shaft.
These alignment checks must be done while the vessel is waterborne. Calculate the pre-load weight and support the overhung shaft/coupling to ensure an accurate gap and sag measurement.
3.2.5.1 Position the coupling flanges within 0.5” of each other and place a straight edge at the following points, Top/Bottom, and Outboard/Inboard. The bore or parallel misalignment shall not be greater than 0.005”.
3.2.5.2 Bring the coupling flanges forward to within 0.5” face gap at all points about the diameter of the flanges. Take measurements of face gap at four equally spaced positions on the flange diameters using feeler gauge. Compare diametrically opposite face gap readings top to bottom, and inboard to outboard. Subtract the smaller of diametrically opposite readings from the larger. The resulting difference is proportional to the amount of angular or face misalignment.
These readings shall not exceed 0.0005” per inch of companion flange outside diameter.
3.2.5.3 Adjust and correct any misalignment that is discovered during the alignment process.
NOTE
Coast Guard personnel will operate all shipboard machinery and equipment.
3.3 Operational test -…
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