908_DD_DLA_10R1 1 .pdf

(June 12, 2009 / Rev 1)

USCGC TAHOMA (WMEC-908)

270 FOOT B CLASS MEDIUM ENDURANCE CUTTER

SPECIFICATION FOR DRYDOCK REPAIRS

Developed By:

D. Abdella

Commander (v) Maintenance and Logistics Command, Atlantic 300 E. Main Street, Suite (600) Norfolk, VA 23510-9102

USCGC TAHOMA (WMEC-908) DRYDOCK AVAILABILITY 2010

Page i (Rev 1)

TABLE OF CONTENTS

Work Item Title Page

List of Sketches iv

Revisions Record v

List of Applicable References vi

List of Government-furnished Property xv

List of Critical Inspection Items xviii

Specification Feedback xix

Principal Characteristics xx

General Requirements 1

1 Clean and Inspect Fuel Service Tanks 9

2 Clean, Inspect and Repair Ballast Tanks 12

3 Remove and Reinstall Propeller Shafts, and Inspect Stern Tubes 16

4 Inspect Propeller Shafts and Repair Fairwater 20

5 Remove, Inspect, and Reinstall Port Intermediate Shaft 23

6 Renew Shaft Covering 27

7 Straighten Shaft 30

8 Renew Water-Lubricated Shaft Bearings 32

9 Renew Propeller Shaft Sleeve(s) 35

10 Overhaul Stern Tube Seal Assemblies 38

11 Remove and Reinstall Controllable Pitch Propeller Hubs 42

Page ii (Rev 1)

12 Service Both Onboard Controllable Pitch Propeller Systems 46

13 Repair Main Diesel Engine #2 Exhaust Stack 57

14 Renew Speed Doppler 60

15 Renew Depth Indicating Transducers 63

16 Overhaul and Renew MSW/ASW Valves 66

17 Overhaul Firemain Valves 71

18 Clean and Inspect Simplex Sea Strainers 76

19 Service Rudder Assemblies 79

20 Service Fin Stabilizer Systems 90

21 Perform Anchor, Anchor Chain, and Ground Tackle Maintenance 98

22 Preserve Anchor, Anchor Chain, and Ground Tackle 100

23 Preserve and Repair Chain Lockers 102

24 Preserve Ballast Tanks - 100% 105

25 Preserve Ballast Tanks - Partial 108

26 Preserve Underwater Body – 100% 111

27 Preserve Underwater Body - Partial 113

28 Preserve Stern Tube(s) 116

29 Preserve Freeboard – 100% 118

30 Preserve Freeboard Surfaces – Partial (In Drydock) 122

31 Routine Drydocking 127

32 Provide Temporary Logistics 132

33 Provide Support for Performance of Sea Trials 135

34 Preserve Refrigerated and Dry Stores Bilge Surfaces 139

35 Repair JP-5 Pump Room Bilge 142

Page iii (Rev 1)

36 Preserve Designated Engine Room Bilge Surfaces 145

37 Perform Designated Structural Repairs 149

38 Repair Hull at JP-5 Fuel Storage Tank 153

39 Renew Structural Closures 160

40 Renew Balanced Joiner Door 164

41 Perform Anchor Windlass Maintenance, Starboard 167

42 Remove, Inspect, and Reinstall Starboard Intermediate Shaft 171

Page iv (Rev 1)

List of Sketches

Work Item Sketch Number Page

This section is not applicable to this package.

Page v (Rev 1)

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

12 Jun

1 1, 22, 34, & 36

Changed CLINs from DEFINITE to OPTION on associated SOSS.

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.

Page vi (Rev 1)

List of Applicable 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. Electronic copies of the latest Editions of MLCA Standard Specifications are available on the Internet and may be accessed at the following Internet Uniform Resource Locator (URL) address:

http://www.uscg.mil/mlclant/vdiv/standard_specifications.asp.

Guidance for obtaining copies of all other documents referenced herein is provided in the solicitation.

Order of precedence. In the event of conflicts between text of this specification and the applicable references specified herein, order of precedence shall be in accordance with MLCA Standard Specification 0000_STD, paragraph 3.2 (Order of precedence), unless otherwise specified by the Contracting Officer (KO). The Contractor shall immediately notify the KO in writing of any perceived conflicts contained herein. Nothing in these documents, however, supersedes applicable laws and regulations, unless a specific exemption has been obtained.

FEDERAL AND MILITARY SPECIFICATIONS AND STANDARDS

MIL-A-18001, May 2008, Anodes, Sacrificial Zinc Alloy (Commercially Accepted - ASTM B418)

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

MIL-DTL-24244, May 2000, Insulation Material, With Special Corrosion, Chloride, And Fluoride Requirements

MIL-I-16411, Nov 1988, Insulation Felt, Thermal, Glass Fiber

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

MIL-PRF-17672, May 1995, Hydraulic Fluid, Petroleum, Inhibited

MIL-PRF-24647, Jun 2006, Paint System, Anticorrosive and Antifouling, Ship Hull

MIL-STD-1687, Sep 1994, Thermal Spray Process for Naval Ship Machinery Application http://www.uscg.mil/mlclant/vdiv/standard_specifications.asp

Page vii (Rev 1)

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

MIL-STD-2199, Oct 1993, Glass Reinforced Plastic Coverings for Propeller Shafting

MIL-Y-1140, Sep 1985, Yarn, Cord, Sleeving, Cloth, And Tape- Glass

Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Antiseize, Zinc Dust-Petrolatum

Commercial Item Description (CID) A-A-59316, Nov 2003, Abrasive Materials for Blasting

OTHER GOVERNMENT DOCUMENTS, DRAWINGS, AND PUBLICATIONS

DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 1001_STD, 2004 Edition, Temporary Hull Accesses

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 5000_STD, 2004 Edition, Auxiliary Machinery Systems

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 8634_STD, 2004 Edition, Drydocking

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 8635_STD, 2004 Edition, Provide Temporary Logistics

DRAWINGS

Coast Guard Drawing 901 WMEC 562-004, Rev D, A & B Class Rudder Assembly

Coast Guard Drawing 901 WMEC 562-005, Rev E, A & B Class Rudder Stock And Steering Gear A & D

Page viii (Rev 1)

Coast Guard Drawing 901 WMEC 565-031, Rev C, Fin Shaft Assembly, w/ Sleeve Fitted NSN 3040-01-104-5121, (for both A & B Classes)

Coast Guard Drawing 905 WMEC 111-002, Rev E, Shell Expansion AFT

FR 182

Coast Guard Drawing 905 WMEC 111-003, Rev E, Shell Expansion FR 101-182

Coast Guard Drawing 905 WMEC 113-002, Rev A, Tank Top Plating and Framing AFT 182

Coast Guard Drawing 905 WMEC 113-003, Rev F, Tank Top Plating and Framing

Coast Guard Drawing 905 WMEC 114-003, Rev B, Shaft Fairwaters and Rope Guards

Coast Guard Drawing 905 WMEC 121-001, Rev B, Longitudinal Tank Bulkheads AFT 182

Coast Guard Drawing 905 WMEC 122-004, Rev F, Transverse Bulkheads 165/169/151.6

Coast Guard Drawing 905 WMEC 122-005, Rev B, Transverse bulkheads 186/190

Coast Guard Drawing 905 WMEC 122-006, Rev E, Transverse bulkheads 196/207/228/242

Coast Guard Drawing 905 WMEC 123-001, Rev E, Dumbwaiter Trunk and Foundation FR 165

Coast Guard Drawing 905 WMEC 123-002, Rev C, Chain Locker Bulkheads and Details

Coast Guard Drawing 905 WMEC 123-003, Rev B, Miscellaneous Built-in Tanks & Seachest Strainer

Coast Guard Drawing 905 WMEC 141-001, Rev D, 1st Platform Plating and Framing - FWD 103

Coast Guard Drawing 905 WMEC 141-002, Rev C, 1st Platform Plating and Framing – AFT 182

Coast Guard Drawing 905 WMEC 162-001, Rev B, Stacks

Coast Guard Drawing 905 WMEC 167-001, Rev K, List of Structural Closures

Page ix (Rev 1)

Coast Guard Drawing 905 WMEC 182-101, Rev F, Main Engine and Reduction Gear Foundation (907-913)

Coast Guard Drawing 905 WMEC 182-104, Rev D, Engine Room Foundation and Grating LWR Level

Coast Guard Drawing 905 WMEC 184-010, Rev E, Transducer Foundations & Shell Mods

Coast Guard Drawing 905 WMEC 185-009, Rev C, JP5 Pump Room Foundations

Coast Guard Drawing 905 WMEC 185-014, Rev D, Auxiliary Machinery Space #1 Foundations

Coast Guard Drawing 905 WMEC 201-001, Rev F, Engine Room Arrangement

Coast Guard Drawing 905 WMEC 243-001, Rev B, Shafting Arrangement

Coast Guard Drawing 905 WMEC 243-002, Rev E, Stern Tubes Strut Bearing and Seal A&D

Coast Guard Drawing 905 WMEC 243-003, Rev-, Shaft Removal Arrangement

Coast Guard Drawing 905 WMEC 243-006, Rev B, Shaft Seal Assembly and Details

Coast Guard Drawing 905 WMEC 243-008, Rev B, Shaft and Rudder Removal Padeye A&D

Coast Guard Drawing 905 WMEC 243-012, Rev A, Controllable Pitch Propeller Shafting Details

Coast Guard Drawing 905 WMEC 245-001, Rev H, CPCH Propeller Hydraulic System Diagram

Coast Guard Drawing 905 WMEC 245-003, Rev C, Propeller Hub Assembly

Coast Guard Drawing 905 WMEC 245-004, Rev A, Blade And Palm

Coast Guard Drawing 905 WMEC 245-007, Rev B, Special Tools

Coast Guard Drawing 905 WMEC 245-008, Rev B, Actuating Unit

Page x (Rev 1)

Coast Guard Drawing 905 WMEC 245-009, Rev C, CPCH Prop Hyd System Power Plant A & D

Coast Guard Drawing 905 WMEC 256-001, Rev N, Main and Auxiliary Water Cooling Diagrams

Coast Guard Drawing 905 WMEC 256-002, Rev J, Eng Rm Sw Cooling Sys A & D

Coast Guard Drawing 905 WMEC 256-004, Rev D, AMS SW Cooling Sys A & D

Coast Guard Drawing 905 WMEC 259-001, Rev D, Diesel Exhaust

Coast Guard Drawing 905 WMEC 259-002, Rev C, Diesel Exhaust System Arrangement and Details

Coast Guard Drawing 905 WMEC 501-001, Rev E, Auxiliary Machinery Space #1 Arrangement

Coast Guard Drawing 905 WMEC 521-001, Rev G, Fire Main and Sprinkler System Diagram

Coast Guard Drawing 905 WMEC 521-002, Rev D, Fire Main Stations A&D

Coast Guard Drawing 905 WMEC 521-003, Rev B, Fire Main Below Main Deck, FR 82 FWD – A&D

Coast Guard Drawing 905 WMEC 521-004, Rev D, Fire Main Below Main Deck, FR 165 AFT – A&D

Coast Guard Drawing 905 WMEC 521-005, Rev C, Fire Main, Main Deck A&D

Coast Guard Drawing 905 WMEC 521-006, Rev B, Fire Main 01 Level and Above – A&D

Coast Guard Drawing 905 WMEC 521-007, Rev E, Fire Main System, Machinery Space A&D

Coast Guard Drawing 905 WMEC 529-001, Rev J, Ballasting and Emergency Bilge Drainage System Diagram

Coast Guard Drawing 905 WMEC 529-002, Rev J, Ballasting and Emergency Bilge Drainage Inside Machinery Space – A&D

Coast Guard Drawing 905 WMEC 542-001, Rev H, JP-5 System Diagram

Page xi (Rev 1)

Coast Guard Drawing 905 WMEC 542-002, Rev G, JP-5 System A&D

Coast Guard Drawing 905 WMEC 555-002, Rev C, AFFF System A&D

Coast Guard Drawing 905 WMEC 565-007, Rev H, Fin Stabilizer Machinery Assembly

Coast Guard Drawing 905 WMEC 581-001, Rev D, Anchor Handling, Arrangements & Details

Coast Guard Drawing 905 WMEC 581-002, Rev B, Hawse and Chain Pipes

Coast Guard Drawing 905 WMEC 581-004, Rev D, Anchor Windlass A&D

Coast Guard Drawing 905 WMEC 624-001, Rev E, Joiner Door List

Coast Guard Drawing 905 WMEC 633-001, Rev B, Cathodic Protection A&D

Coast Guard Drawing 905 WMEC 665-004, Rev E, Anchor Windlass Room and Bosn’s Workshop – A&D

Coast Guard Drawing 905 WMEC 672-005, Rev E, Storeroom Arrangement and Details - Hold Frame 169-186

Coast Guard Drawing 905 WMEC 672-006, Rev C, Reefer Stores Hold Fr 174-186

Coast Guard Drawing 905 WMEC 801-004, Rev C, General Arrangement

– 01 LVL

Coast Guard Drawing 905 WMEC 801-006, Rev D, General Arrangement

– 1st Platform

Coast Guard Drawing 905 WMEC 801-007, Rev E, General Arrangement

- Hold

Coast Guard Drawing 905 WMEC 801-008, Rev B, General Arrangement

– Double Bottom

Coast Guard Drawing 905 WMEC 801-009, Rev F, Outboard Profile

Coast Guard Drawing 905 WMEC 801-010, Rev B, Inboard Profile

Coast Guard Drawing 905 WMEC 801-035, Rev E, Docking Plan (USCGC

TAHOMA)

Page xii (Rev 1)

Coast Guard Drawing FL 6713-201, Rev B, CRP-V850 Transducer (B-

14) Adapter Assembly

NAVSEA Drawing 803-2145807, Rev C, Propulsion Shafting And Components

NAVSEA Drawing 803-921865, Rev R, Cathodic Protection Hull Zinc Anodes

PUBLICATIONS

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

Coast Guard Technical Publication (TP) 2816, Mar 1986, SWBS 243, Section B, Technical Manual for Type MA Mechanical Stern Tube Seal

Coast Guard Technical Publication (TP) 2817, Apr 2008, Technical Manual for the Controllable-Pitch Propeller

Coast Guard Technical Publication (TP) 2835, SWB 561, Section A, Jul 1985, Steering Gear System, and SWBS 562, Dec 1992, Rudderstock Seal Assembly

Coast Guard Technical Publication (TP) 2837, Feb 2007, Fin Machinery and Hydraulics Subsystems WMEC 270 Class Ship

Raytheon V850 Color Echosounder, 2nd Edition, Mar 1993, Operation Manual

INDUSTRY STANDARDS

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

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

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-72, 1999 Edition, Ball Valves with Flanged or Butt-Welding Ends for General Service

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-67, 2002 Edition, Butterfly Valves

Page xiii (Rev 1)

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2007, Cork and Rubber Composition Sheet; For Aromatic Fuel And Oil Resistant Gaskets

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

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

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 12/NACE No.5, 2004, 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), 2007, Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, Near-White Blast Cleaning

International Standard Organization (ISO) 4406, 1999, Hydraulic Fluid Power - Fluids - Method for Coding Level of Contamination by Solid Particles

ASTM International (ASTM) C1028, 2007, Standard Test Method for Determining The Static Coefficient Of Friction Of Ceramic Tile And Other Like Surfaces By The Horizontal Dynamometer Pull-Meter Method

ASTM International (ASTM) D1330, 2004, Standard Specification for Rubber Sheet Gaskets

ASTM International (ASTM) D3884, 2007, Standard Guide for Abrasion Resistance of Textile Fabrics (Rotary Platform, Double- Head Method

ASTM International (ASTM) D4174, 2005, Standard Practice for Cleaning, Flushing, and Purification of Petroleum Fluid Hydraulic Systems

ASTM International (ASTM) E648, 2008, Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source

Page xiv (Rev 1)

ASTM International (ASTM) E662, 2006, Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials

ASTM International (ASTM) E797, 2005, Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method

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

DSN-450 Mark II, Dec 1988, Dual Axis Doppler Sonar Speed Log Instruction Manual

ODOM Echotrac DF3200 MKII Technical Manual, May 1996

Page xv (Rev 1)

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)

4 Y **Propeller shaft NSN: 2010-01-135-7065 2 ea. 228,555.00

5 Y **Intermediate Shaft NSN: 2010-01-365-3908 1 ea. 10,000.00

N Cooper bearing & seals assy PN: 01-BC-1008 EXAT 1 ea. 16,331.00

N Bearing seal kit PN: ATL-1008 1 ea. 2,000.00

8 N **Stern tube Bearing NSN: 3120-01-189-1949 2 ea. 12,646.00

N **Propeller Strut Bearing NSN: 3120-01-189-1087 2 ea. 3,875.00

N **Intermediate Strut Bearing NSN: 3120-01-189-1088 2 ea. 6,317.00

9 N **Stern Tube Sleeve (Forward) NSN: 2010-01-340-6083 2 ea. 4,386.00

N **Stern Tube Sleeve (Aft) NSN: 2010-01-345-2315 2 ea. 5,193.98

N **Propeller Strut Sleeve (Forward)

NSN: 2010-01-345-2314 2 ea. 5,541.92

N **Propeller Strut Sleeve (Aft)

NSN: 2010-01-340-5362 2 ea. 6,196.00

10 N Overhaul kit NSN: 5330-01-527-0959 2 ea. 12,894.00

Y Stern tube split seal NSN: 5330-01-359-5555 4 ea. 7,763.86

11 N Hub installation kit NSN: 2010-01-470-3258 2 ea. 215.00

Y **Left hand hub assembly NSN: 2010-01-119-5469 1 ea. 304,313.00

Y **Right hand hub assembly NSN: 2010-01-118-8538 1 ea. 304,313.00

N ***CPP Tool Kit N/A 1 set 20,000.00

N

*"Special tools" (see 4.2 (Government-loaned installation tools))

N/A 1 set 1,000.00

12 Y **Propeller Blade-LH (Port) NSN: 2010-01-119-3972 1 Set 40,000.00

Y **Propeller Blade-RH (Stbd) NSN: 2010-01-120-2871 1 Set 40,000.00

N O-Ring NSN: 5330-01-120-5229 8 ea. 97.00

Page xvi (Rev 1)

N O-Ring NSN: 5330-01-118-8529 8 ea. 96.00 N Blade Washer NSN: 5310-01-335-4361 48 ea. 112.00

N O.D. Box Inspection Kit NSN: 3010-01470-3519 2 ea. 330.00

N Filter NSN: 4330-01-177-4069 12 ea. 92.00

Y **Oil Feed Bushing NSN: 3120-12-329-5287 2 ea. 4,811.00

N **Ball Bearing NSN: 3110-00-156-6745 2 pr. 46.00

N **Bearing Bushing NSN: 2010-01-469-8639 2 ea. 450.00

N **Bearing Bushing NSN: 3120-12-198-7607 8 ea. 559.00

N Spool valve assembly NSN: 4820-01-513-2509 2 ea. 17,000.00

14 Y

***DSN 450 Mark II Dual Axis Doppler Sonar Speed Log

NSN: 5845-01-130-3490 1 ea. 15,509.00

15 N ***V850 Color Echo Sounder NSN: 5845-01-518-7245 1 ea. 1,423.41

Y ***ODOM Echotrac DF3200 MKII NSN: 5845-01-460-9969 1 ea. 14,530.00

19 Y **Rudder Assembly NSN: 2040-01-486-0550 2 ea. 125,000.00

N **Upper Bearing NSN: 3110-01-121-8032 2 ea. 4,323.00

N Rudder Stock Sleeve NSN: 2040-01-F91-0187 2 ea. 4,000.00

N John Crane Seal kit NSN: 5330-01-527-0778 2 ea. 5,058.00

N

**Thordon Lower Bearing (SXL 20.7" X 17.5" X 14)

PN: F546150102 2 ea. 1,000.00

20 N Seal PN: 17855H1L5 4 ea. 152.00 N O-Rings PN: MS9021-381 4 ea. 3.00 N Packing NSN: 5330-00-902-5505 2 Roll 177.00 N Packing NSN: 5330-00-527-7496 16 FT 5.00

N Thordon Bearing Set Assembly PN: TG-13886 OPTION 3 2 ea. 6,200.00

N Inflatable Seal NSN: 5330-01-103-6518 2 ea. 689.00 N Roller Bearing NSN: 3110-00-155-9065 2 ea. 1,800

N Preformed packing NSN: 5331-01-306-4879 2 ea. 15.00

N O-ring PN: MS9021-359 2 ea, 90.00 N O-ring PN: MS9021-377 2 ea. 156.00 N Seal, Plain PN: 17444H1L5 4 ea. 60.00 N **Seal Retainer NSN: 5330-01-382-7103 2 ea. 228.00 N Lantern Rings MSN: 4320-01-377-2106 2 ea. 1,167.00 N **Seal Housing NSN: 5330-01-382-9160 2 ea. 1,622.00

Y **Fin Stock with sleeves NSN: 3040-01-104-5121 2 ea. 16,109.00

N **Threaded-end rod PN: 1857336 2 ea. 400.00

Page xvii (Rev 1)

N *Fin Removal Tools None. 1 set 15,000.00

31 N *Transducer cover plate N/A 3 ea. 300.00

40 N

***Balanced Joiner door 28 3/4" x 65 3/4" Frame size 34 1/4" x 69 3/4"

N/A 1 ea. 7,000.00

42 Y **Intermediate Shaft NSN: 2010-01-365-3908 1 ea. 10,000.00

N **Cooper bearing & seals assy PN: 01-BC-1008 EXAT 1 ea. 16,331.00

N Bearing seal kit PN: ATL-1008 1 ea. 2,000.00 *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, Electronic Systems Support Unit (ESU) or local Electronic Support Detachment (ESD).

Page xviii (Rev 1)

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 Std Spec 0000_STD, paragraph 3.6.2 (Inspection report particulars)):

Work Item Title

3 Remove and Reinstall Propeller Shafts, and Inspect Stern Tubes

4 Inspect Propeller Shafts and Repair Fairwater

5 Remove, Inspect, and Reinstall Port Intermediate Shaft

12 Service Both Onboard Controllable Pitch Propeller Systems

19 Service Rudder Assemblies

20 Service Fin Stabilizer Systems

21 Perform Anchor, Anchor Chain, and Ground Tackle Maintenance

28 Preserve Stern Tube(s)

31 Routine Drydocking

34 Preserve Refrigerated and Dry Stores Bilge Surfaces

35 Repair JP-5 Pump Room Bilge

41 Perform Anchor Windlass Maintenance, Starboard

42 Remove, Inspect, and Reinstall Starboard Intermediate Shaft

Page xix (Rev 1)

Specification Feedback

The intent of this section is to inform all users that a spec feedback mechanism is in place, and is located on the MLCA Naval Engineering Division’s website. Spec feedback is a very important part of our overall continuous improvement process, and is crucial to specification development. It will allow spec writers to capture all specification-related lessons learned, and avoid mistakes or ambiguities in follow-on availabilities.

All feedback will be reviewed, evaluated, and responded to in a timely manner.

If you have access to the CGWeb (Intranet), please use the following link, which will connect you to the MLCA(v) Naval Engineering website, for submitting your feedbacks:

http://webapps.mlca.uscg.mil/vdiv/specifications/feedback/defaul t.cfm

If you do not have access to the CGWeb (Intranet), you may still submit your feedbacks, using the following web link:

http://www.uscg.mil/mlclant/vdiv/specfeedback.asp http://webapps.mlca.uscg.mil/vdiv/specifications/feedback/default.cfm http://webapps.mlca.uscg.mil/vdiv/specifications/feedback/default.cfm http://www.uscg.mil/mlclant/vdiv/specfeedback.asp

Page xx (Rev 1)

PC_270B WMEC

(21 Sep 2004)

Principal Characteristics

270B WMEC (B CLASS) MEDIUM ENDURANCE CUTTER

Length Overall 270' 0"

Depth (main deck at side to baseline) 33' 3"

Maximum Beam 38' 5/8"

Frame Spacing 1' 0"

Full Load Draft 13.85'

Full Load Displacement 1825.64 long tons

Shore Tie Voltage Requirements 450 vac, 400A, 3 phase cables

PROPELLER / SHAFT

Number of Propellers 2

Number of Blades per Propeller 4

Diameter of Propeller 9'

Pitch Controllable

Revolutions per Minute (RPM) 260

Shaft Diameter 10.55" at exit of hull

Page 1 (Rev 1)

00000_DLA_FLT (23 Oct 2008)

General Requirements

1. SCOPE

1.1 Intent. This item describes the general requirements to be followed by the Contractor while conducting this availability.

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

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

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in Std Spec 0000_STD 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 also to all other work subsequently authorized by changes, modifications, or extensions to the contract.

3.2 Contractor-provided fire extinguishers. The Contractor

shall provide portable fire extinguishers.

3.3 Welding and brazing requirements. The Contractor shall

perform all welding and allied processes, and nondestructive

Page 2 (Rev 1) inspection (NDI), in accordance with Std Spec 0740_STD.

3.4 Term substitution - COTR for COR. The Contractor shall be aware that the term "COR" (Contracting Officer's Representative) has been discontinued in favor of "COTR" (Contracting Officer's Technical Representative); consequently, whenever "COR" is encountered in this specification package, including referenced standard specifications and other referenced documents, it shall refer to "COTR", explicitly.

3.5 Small boat storage. If a small boat (Motor Surf Boat

(MSB)/Motor Cargo Boat (MCB)/Rigid Hull Inflatable (RHI) boat) is removed as interference to Contractor-work, the Contractor shall provide a suitable pier side storage cradle, for safely storing said boat.

3.5.1 Cradle design. Ensure that the temporary cradle meets

the following criteria:

1. Structure is templated from the geometry and arrangement of the contact support areas of the existing cradle onboard the vessel, to provide same or more support area as that which is provided by the existing cradle.

2. Arrangement will allow ship's force to perform maintenance on the small boat, without modification of the cradle.

3. Structure is manufactured using the most economical methods and materials available, and is capable of supporting the full weight of the small boat under normal conditions experienced during routine maintenance.

4. Contact surfaces are no harder or rougher than the contact surfaces for existing cradle onboard the vessel.

3.5.2 Boat accessibility. Ensure the storage is located in the vicinity of the vessel, and is unrestricted, to allow for ship's force to complete maintenance during normal working hours for the entire performance period.

3.5.3 Boat protection. Provide full protection that can be

safely and completely secured when the small boat is left unattended (e.g. watertight cover, storage in a warehouse or shop, etc.), in addition to isolating the boat from the elements.

Page 3 (Rev 1)

3.5.4 Boat transportation. Transport each small boat to its

storage area within one week of docking the vessel and back to the vessel prior to the end of the performance period.

3.6 Software and fasteners. The Contractor shall renew all

disturbed software (gaskets, o-rings, seals, etc.), and any fasteners (lockwashers, cotter pins, etc.) damaged during removal as interference.

4. NOTES

4.1 Access to COMDTINST M10360.3. The COMDTINST M10360.3 may

be accessed at the following URL address:

http://www.uscg.mil/directives/cim.asp

4.2 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in Std Spec 0000_STD to be completed and submitted during preservation of "critical-coated surfaces", are provided at the end of this item.

http://www.uscg.mil/directives/cim.asp

Page 4 (Rev 1)

QA-1: QUALITY ASSURANCE INSPECTION FORM - PRESERVATION CHECKLIST

CHECKPOINT 1 - COATING SYSTEM COMPLIANCE

Ensure all coatings are in compliance with COMDTINST M10360.3, 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 manufacturer(s).

CHECKPOINT 3 - AMBIENT CONDITIONS

Ensure surface and surrounding temperatures are each between 50 and 90°F for water-based 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 manufacturer(s).

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.

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-12, SP-11, SP-10?).

Verify surface anchor profile (1.5-3.5 mils for abrasive-blasted steel surfaces; 1.0 mil (minimum) for power-tool cleaned surfaces; 1.0-1.5 mils for abrasive-blasted aluminum surfaces); and 1.5 -2.5 for surfaces to be coated w/single coat of inorganic zinc).

Measure soluble salt conductivity (5 measurements per 1000 sqft) - maximum threshold: 70 microsiemens/cm for non-submerged surfaces and 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 at random, to prevent under or over application.

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.

Verify system cure for service resumption - U/W Body surfaces: 5-8 hours @ 77 degrees F; Potable water tanks: 7 days @

77 degrees F.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure (minimum 7 days @ 77 degrees F.), to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

CHECKPOINT 10 - RECORD KEEPING

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

Signature of Inspector:______________________________________________________Date:____________

Page 5 (Rev 1)

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

ENTER ACTIVITY

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

LOCATION DEW

POINT

SURFACE

TEMP.

% REL.

HUMIDITY

SIGNATURE

OF

INSPECTOR

.Signature of Inspector:__________________________________________________Date:____________

Page 6 (Rev 1)

QA-3 QUALITY ASSURANCE INSPECTION FORM

SURFACE PROFILE LOG

Vessel Name And Hull Number:__________________________________________________

Work Item Title:_______________________________________________________________

Location Of Work (Including Frame Numbers):_____________________________________

Area (Square Feet):_____________

Surface Preparation Method:_____________________________________________________

Abrasive Manufacturer And Size:_________________________________________________

Degreasing Method Used:________________________________________________________

Number Of Hours Surfaces (Steel Only) Left Unpainted:______________________________

Sweep blasting performed to remove flash rusting (steel)? Yes/No:_____________________

Place Surface Profile Replica Tapes In The Spaces Provided Below, To Serve As Permanent QA record.

Maintain separate log for each area/location. When an Area Is Divided Into Separate Sections, Maintain A Separate Log for Each Section.

AVERAGE MILS

(IAW ASTM D4417,

METHOD C)

Place Surface Profile Replica Tape Here

Reading:__________ mils

• Place Surface Profile Replica Tape Here

Date and Time:__________________________________________________

Location of Surface Profile Measurements:___________________________________________________________

Signature of Inspector:____________________________________________________________________________

Page 7 (Rev 1)

QA-4. QUALITY ASSURANCE INSPECTION FORM

SURFACE SOLUBLE SALT CONDUCTIVITY LOG

Vessel Name and Hull Number:__________________________________________________

Work Item Title:_______________________________________________________________

Location of Work (including frame numbers):_______________________________________

Area (square feet):____________

DATE TEST LOCATIONS CONDUCTIVITY

(microsiemens/cm)

Date and Time:_________________________________________

Signature of Inspector:___________________________________

Page 8 (Rev 1)

QA-5. QUALITY ASSURANCE DATA FORM

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

(Use one sheet for each sequence)

Vessel Name and Hull Number:__________________________________________________

Work Item Title:______________________________________________________________

Coating Manufacturer:_________________________________________________________

Product Name:________________________________________________________________

Batch Number:________________________________________________________________

Induction Time:_______________________________________________________________

Coating System Sequence (Indicate whether: primer, touch-up primer, barrier coat, 3rd coat?):__________________

DFT

MEASUREMENT

NUMBER

LOCATION OF READINGS MEASURED DFT

Application Method (Airless, Conventional Spray, Rolled):____________________

Average DFT: __________________________________________________________

Date and Time: _________________________________________________________

Signature of Inspector: ___________________________________

Page 9 (Rev 1)

12312_DLA_FLT (10 Sept 2008) 270B WMEC (21 Mar 2008)

WORK ITEM 1: Clean and Inspect Fuel Service Tanks

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to clean and inspect the following tank(s):

TYPE OF TANK LOCATION *CAPACITY

(GALLONS)

Diesel Service 4-165-3-F 2,692 Diesel Service 4-165-4-F 2,692

*(Note: Tank Capacity at 95%)

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2007, Cork and Rubber Composition Sheet; For Aromatic Fuel And Oil Resistant Gaskets

3. REQUIREMENTS

3.1 General.

3.1.1 Operational test – initial. Prior to commencement of

work, the Contractor shall witness an operational pre-test (by Coast Guard personnel) of all designated tank TLIs to demonstrate existing operational condition. Submit a CFR.

3.1.2 Tank content removal. The Contractor shall remove and

dispose of up to a total of 5,000 gallons of fuel.

NOTE

Vessel may come in with less tank fluid contents than specified above.

3.2 Cleaning requirements. The Contractor shall remove tank

Page 10 (Rev 1) cover(s) and clean tank interior surfaces free of all foreign materials, such as sediment or sludge, taking care not to damage the coating system (if applicable). Remove cleaning media and residues continuously during the washing process. Remove any residual wash media; and wipe up residual moisture with clean lint-free cloths.

3.3 Tank content and waste disposal. The Contractor shall

dispose of tank contents and all cleaning fluids in compliance with all applicable Federal, state, and local laws, ordinances and regulations. Document a complete chain of custody record of the removed tank contents and generated wastes, from the vessel to the point of final destination or delivery. Submit document to the COTR upon completion of work.

3.4 Inspection. The Contractor shall visually inspect all tank interior surfaces, including, but not limited to bulkheads, floor and overhead plating, structural members, manhole cover surfaces, fasteners and gasket seating surfaces. Submit a CFR including the following, as applicable:

• Tank structural condition.

• Inaccessible areas.

• Condition of tank coating, including measurements taken, percentage, location, and type of coating failure.

• Tank level indicator (TLI) and/or float switch condition.

• Sounding tube and striker plate condition.

• Suction and discharge piping condition.

• Fastener material and condition (correct fastener material is stainless steel).

3.5 Tank closing. The Contractor shall notify the COTR at

least 24 hours prior to closing the tank(s). After satisfactory inspection by the Coast Guard Inspector and completion of all authorized repairs, close tank manhole cover(s) with new gasket material conforming to AMS-C-6183.

3.6 Operational test – final. After all authorized work is

complete, in the presence of the Coast Guard Inspector, the Contractor shall thoroughly test and prove the TLIs to be in satisfactory operating condition (see 4.1 (Equipment operation)). Submit a CFR.

Page 11 (Rev 1)

4. NOTES

4.1 Equipment operation. Coast Guard personnel will operate

all shipboard machinery and equipment during all operational tests.

Page 12 (Rev 1)

12316_DLA_FLT (10 Sept 2008) 12316_270 B (11 Jan 2007)

908_DLA (09 Apr 2009)

WORK ITEM 2: Clean, Inspect and Repair Ballast Tanks

Contractor to clean and inspect the following:

TYPE OF STRUCTURE LOCATION CAPACITY

(GALLONS)

Ballast 4-103-1-W 8,378 Ballast 4-103-2-W 8,378 Ballast 4-228-1-W 3,521 Ballast 4-228-2-W 3,521

NOTE: All tanks also used as for storing grey water - considered immediately dangerous to life and health (IDLH).

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

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

Coast Guard Drawing 905 WMEC 529-001, Rev J, Ballasting and Emergency Bilge Drainage System Diagram

Coast Guard Drawing 905 WMEC 529-002, Rev J, Ballasting and Emergency Bilge Drainage Inside Machinery Space – A&D

Page 13 (Rev 1)

ASTM International (ASTM) D1330, 2004, Standard Specification for Rubber Sheet Gaskets

3. REQUIREMENTS

3.1 General. The Contractor shall do the following for the

designated structure(s):

3.1.1 Operational test - initial. Prior to commencement of

work, the Contractor shall witness an operational pre-test (by Coast Guard personnel) of all designated tank TLIs to demonstrate existing operational condition. Submit a CFR.

3.1.2 Content removal. Remove and dispose of all fluid

contents, in accordance with all applicable Federal, state, and local regulations.

3.1.3 Cleaning requirements. Remove access cover(s). Clean

the designated structure's interior surfaces free of all foreign materials, such as sediment or sludge. Remove all persistent residues, taking care not to damage the tank coating system.

Remove cleaning media and residues continuously from the tank during the washing process. Remove any residual wash media and wipe up residual moisture with clean lint-free cloths. Collect, contain, and dispose of all wash media, residues, and cleaning materials in accordance with all Federal, state, and local regulations.

3.1.4 Inspection. Visually inspect all tank interior surfaces;

including, but not limited to bulkheads, floor and overhead plating, structural members, manhole cover surfaces, fasteners and gasket seating surfaces. Submit a CFR including the following, as applicable:

• Structural condition.

• Inaccessible areas.

• Condition of coating, including measurements taken, percentage, location, and type of coating failure.

• Tank level indicator (TLI) and/or float switch condition.

• Sounding tube and striker plate condition.

• Suction and discharge piping condition.

Page 14 (Rev 1)

• Fastener material and condition (correct fastener material is stainless steel).

3.2 Repairs. The Contractor shall renew up to 6 linear feet

of deteriorated structural members (T-bar) in Ballast Tank 4- 103-2-W, as designated by the Coast Guard Inspector. Refer to Coast Guard drawings 905 WMEC 529-001 and 905 WMEC 529-002 for guidance. Known deteriorated sections are as follows:

• Longitudinal #6 on top of tank, Frame 145 forward.

• Longitudinal #3, Frame 145 forward.

• Longitudinal #5 on top of tank, just forward of Frame 124.

• Transverse at Longitudinal #5, just forward of Frame 124.

3.2.1 Touch-up preservation. The Contractor shall prepare and coat all new and disturbed surfaces to match existing adjacent surfaces, in accordance with COMDTINST M10360.3, Appendix A (Cutter and Boat Exterior Painting Systems) and Appendix B (Cutter and Boat Interior Painting Systems), respectively, and as applicable. Abide by all touch-up requirements outlined in paragraph 3.11.9 (Touch-ups and minor coating repairs) of Std Spec 0000_STD.

3.3 Closing. The Contractor shall keep the manhole(s)

uncovered for approximately 24 hours, after completion of the tasks specified above. Notify the COTR at least 24 hours prior to closing the tank(s). After satisfactory inspection by the Coast Guard Inspector, and after completion of all authorized work, in the presence of the Coast Guard Inspector reinstall manhole cover(s) with new gasket material conforming to ASTM D1330.

3.4 Operational test - final. After all authorized work is

complete, in the presence of the Coast Guard Inspector, the Contractor shall thoroughly test and prove the TLIs to be in satisfactory operating condition (see 4.1 (Equipment operation)). Submit a CFR.

3.5 Compartment air test. The Contractor shall air test

Ballast Tank 4-103-2-W in accordance with Std Spec 0740_STD, Appendix C. Submit a CFR.

Page 15 (Rev 1)

4.1 Equipment operation. Coast Guard personnel will operate

Page 16 (Rev 1)

MEP_24310L_270 (04 Nov 2006) REC_24310_FLT_270 B WMEC (26 Oct 2007)

908_DLA (2 Apr 2009)

WORK ITEM 3: Remove and Reinstall Propeller Shafts, and Inspect Stern Tubes

Contractor to remove and reinstall the port and starboard propeller shafts, and inspect the stern tube interior surfaces.

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

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

Coast Guard Drawing 905 WMEC 114-003, Rev B, Shaft Fairwaters and Rope Guards

Coast Guard Drawing 905 WMEC 243-001, Rev B, Shafting Arrangement

Coast Guard Drawing 905 WMEC 243-002, Rev E, Stern Tubes Strut Brg and Seal A&D

Coast Guard Drawing 905 WMEC 243-003, Rev-, Shaft Removal Arrangement

Coast Guard Drawing 905 WMEC 243-008, Rev B, Shaft and Rudder Removal Padeye A&D

Page 17 (Rev 1)

Coast Guard Drawing 905 WMEC 243-012, Rev A, Controllable Pitch Propeller Shafting Details

3. REQUIREMENTS

3.1 General.

NOTE

If a Change Request is released and approved by the KO, the Contractor may install additional padeyes to facilitate shaft removal and reinstallation at no additional cost to the Government. In accordance with Std Spec 0000_STD, the Contractor shall remove any additional installed padeyes after authorized work is complete.

3.1.1 Critical Inspection Report. The Contractor shall submit a critical inspection report (CIR) for the inspections listed in the following paragraph(s):

• 3.2.3 (Inspection).

3.1.2 Interferences. The Contractor shall be aware that

interferences in way of work include, but are not limited to the following:

• Rope guard (The Contractor shall inspect and submit CFR.

Refer to Coast Guard Drawing 905 WMEC 114-003 for guidance.).

• Fairwaters (The Contractor shall inspect and submit CFR.

Refer to Coast Guard Drawing 905 WMEC 114-003 for guidance. The aft starboard strut forward fairwater is missing.).

3.2 Work to be accomplished. Using Coast Guard drawings 905

WMEC 243-001, 905 WMEC 243-002, 905 WMEC 243-003, 905 WMEC 243-

008 and 905 WMEC 243-012 as guidance (as applicable) the Contractor shall accomplish the following for each propeller shaft:

3.2.1 Removals. Remove and clean all CPP oil tubes free of all oil and grease.

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

Page 18 (Rev 1)

• Remove the shaft and attached components to a suitable repair facility. Ensure shaft is properly protected and supported at all bearing journals, at all times, until reinstallation.

• Perform a visual inspection and submit a CFR.

3.2.2 Stern tube preservation. The Contractor shall visually

inspect the stern tube surfaces and submit a CFR. If a Change Request is released and approved by the KO, prepare and coat the interior stern tube surfaces, using the coating system specified for “Underwater (U/W) Body and Boot-Top (U/W Body and Boot-Top, Steel Hulls (5-10 Years), in Salt Water)” in COMDTINST M10360.3 in Appendix A (Cutters and Boats Exterior Coating Systems).

3.2.3 Inspection. After surface preparation and before coating application, perform a visual inspection of the prepared stern tube and shaft bore surfaces. Submit a CIR., to also include the condition of the stern tube surface repair compound.

NOTE

Historically, 270 WMEC cutters have had severe pitting and erosion problems in the stern tube areas; the stern tube surfaces have been repaired with a Belzona compound, which has proven very effective in stopping deterioration due to corrosion and erosion.

3.2.4 Reinstallation. Reinstall each propeller shaft to its

original configuration and accomplish the following, as shown on Coast Guard drawings 905 WMEC 243-001, 905 WMEC 243-002, 905 WMEC 243-003, and 905 WMEC 243-012 as applicable.

3.2.4.1 Renew all O-rings for the CPP oil tube connections and coupling flanges during reinstallation.

3.2.4.2 Take care not to damage the sleeves, fiberglass coating, the taper and threads during installation.

3.2.4.3 Ensure the propeller shaft is properly aligned to its original position using the reference marks established prior to its removal.

3.3 Stern tube flange renewal. If a Change Request has been

authorized and released by the KO, the Contractor shall renew the flange for a designated stern tube, prior to shaft reinstallation.

Coat the new flange surfaces with the same Belzona compound as with the internal stern tube surfaces.

3.4 Post-repair operational testing. In the presence of the

Coast Guard Inspector, the Contractor shall thoroughly test and

Page 19 (Rev 1) prove the shafting system to be in satisfactory operating condition. Conduct a sea trial to test the propeller shaft in all modes of operation for a minimum of 4 hours. Inspect and correct any excessive leakage, abnormal noise and excessive vibration. Submit a CFR.

3.5 In-process quality control measures. The Contractor shall abide by all the safety, preservation, and quality control requirements specified in Std Spec 0000_STD, paragraph titled “General preservation requirements, during the interior stern tube surface preservation.

NOTE

Surfaces being preserved are considered “critical-coated surfaces”.

This section is not applicable to this work item.

Page 20 (Rev 1)

MEP_24311L_270 (18 Jan 2006) 270 B WMEC (26 Oct 2007)

908_DLA (06 Apr2009)

WORK ITEM 4: Inspect Propeller Shafts and Repair Fairwater

Contractor to inspect both the port and starboard propeller shafts, and to renew one designated fairwater.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY

ESTIMATED

COST

($/UNIT)

Y **Propeller shaft NSN: 2010-01-135-7065 2 ea. 228,555.00

2. APPLICABLE DOCUMENTS

ASTM International (ASTM) E797, 2005, Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

Coast Guard Drawing 905 WMEC 114-003, Rev B, Shaft Fairwaters and Rope Guards

Coast Guard Drawing 905 WMEC 243-001, Rev B, Shafting Arrangement

Coast Guard Drawing 905 WMEC 243-002, Rev E, Stern Tubes Strut Bearing and Seal A&D

Coast Guard Drawing 905 WMEC 243-003, Rev-, Shaft Removal Arrangement

Coast Guard Drawing 905 WMEC 243-012, Rev A, Controllable Pitch Propeller Shafting Details

Page 21 (Rev 1)

3. REQUIREMENTS

3.1 General.

3.1.1 Critical Inspection Report. The Contractor shall submit a critical inspection report (CIR) for the inspections listed in the following paragraph:

• 3.2.1 (Inspections).

3.1.2 Interferences. The Contractor shall be aware that

interferences in way of work include, but are not limited to the following:

• Rope guard.

• Fairwaters (The aft starboard strut forward fairwater is missing.).

3.2 Work to be accomplished. The Contractor shall refer to

Coast Guard Drawing 905 WMEC 114-003 for guidance, and renew the forward fairwater on the starboard aft strut. Using Coast Guard drawings 905 WMEC 243-001, 905 WMEC 243-002, 905 WMEC 243-003, and 905 WMEC 243-012 as guidance (as applicable) the Contractor shall accomplish the following for each propeller shaft:

NOTE

Before taking shaft runout readings, spin the shaft on a lathe for approximately two hours at the vessel's maximum rated RPM to eliminate any sagging that may have occurred during handling and storage.

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

3.2.1.1 Visually inspect the following components for excessive wear and other mechanical defects such as nicks, cracks, and corrosion:

• Shaft surfaces.

• Bearing surfaces.

• All shaft and propeller associated fasteners.

• Couplings.

• Stern tube/shaft sealing systems.

3.2.1.2 Accomplish the following measurements:

• Measure keys and keyways.

Page 22 (Rev 1)

• Measure all bearing sleeve or journal diameters.

• Measure runouts for shaft taper, shaft straightness, and coupling end diameters.

• With the coupling fit to shaft, measure the coupling face runout.

3.2.1.3 Perform nondestructive inspection of all bearing sleeves, shaft tapers, coupling bolts, keyways, and welded repair surfaces, in accordance with Std Spec 0740_STD, Appendix C.

3.2.1.4 Inspect the shaft fiberglass covering for porosity as follows:

3.2.1.4.1 Visually inspect the plastic covering for evidence of lack of adhesion, and other defects.

3.2.1.4.2 Conduct a high voltage spark test of the covering at 250 to…