5_-_STINGRAY_(WPB_87)_UPDD_Specification_Attachment_2.pdf

RFQ: 70Z080-20-Q-P4519800

Attachment (2)

USCGC STINGRAY (WPB 87305)

SPECIFICATION FOR UNPLANNED DRYDOCK REPAIRS

FY2020

Developed By: Michael W Soost

(Rev-0, 9 October 2019)

USCGC STINGRAY (WPB-87) UNPLANNED DRYDOCK AVAILABILITY FY2020

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record ......................................................................................................................................... iii Consolidated List of References ................................................................................................................... iv Consolidated List of Government-furnished Property ................................................................................. vi Consolidated List of Critical Inspection Items ........................................................................................... vii Principal Characteristics ............................................................................................................................ viii General Requirements WORK ITEM 1: Propulsion Shaft, Port, Renew WORK ITEM 2: Main Engine/Reduction Gear, Port, Realign WORK ITEM 3: Intermediate Water-Lubricated Propulsion Shaft Bearings, Port, Renew WORK ITEM 4: Aft Water-Lubricated Propulsion Shaft Bearing, Port, Renew WORK ITEM 5: Intermediate Bearing Carrier, Port, Renew WORK ITEM 6: Aft Bearing Carrier, Port, Renew WORK ITEM 7: Propeller, Port, Renew WORK ITEM 8: Drydock WORK ITEM 9: Temporary Services, Provide - Cutter WORK ITEM 10: Reduction Gear, Port, Renew 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 the 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 – from links located on the SFLC website. Commercial sites provide access to their respective documents.

COAST GUARD DRAWINGS

Coast Guard Drawing 87 WPB 085-011, Rev C, Lifting Slings

Coast Guard Drawing 87 WPB 085-012, Rev A, Lifting Cradle

Coast Guard Drawing 87 WPB 085-013, Rev B, Docking Plan

Coast Guard Drawing 87 WPB 131-001, Rev J, Deck Construction Plan

Coast Guard Drawing 87 WPB 182-001, Rev C, Main Engine & Generator Foundations

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details

Coast Guard Drawing 87 WPB 245-003, Rev A, Propeller Details

Coast Guard Drawing 87 WPB 634-001, Rev G, Deck Coverings & Details

Coast Guard Drawing 87 WPB 995-001, Rev -, Jigs and Fixtures for Shaft Installation

COAST GUARD PUBLICATIONS

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

Coast Guard Technical Publication (TP) 4499, Jun 2018, SWBS 243, Stern Tube Seal-Model 442C

Coast Guard Technical Publication (TP) 4500, Sep 2017, SWBS 233, Engine Change-Out Guide – Waterborne Main Diesel

Coast Guard Technical Publication (TP) 4521A, Spare Parts Catalog - Model BW 250

Coast Guard Technical Publication (TP) 4521B, Repair Manual – Model BW 250

Coast Guard Technical Publication (TP) 4521C, Reduction Gears Installation Manual (ZF Families) – Model BW 250

Coast Guard Technical Publication (TP) 4522, Operating Instructions - Model BW 250

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

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 v (Rev-0)

OTHER REFERENCES

None vi (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)

1/2 Y *Alignment jig N/A 1 ea. ---- 1 Y Propeller Shaft NSN: 2010-01-458-9175 1 ea. 10,195.95 1 N **Upper Roller Bearing NSN: 3110-01-512-5534 1 ea. 287.43

N **Wartsila EL Seals Kit PN: H75492-01

NSN: 2040-01-565-9776

1 ea. 7243.42

N

Kit, Rebuild, Seal Assembly

NSN: 5330-01-F18-5383

PN: 388728

1 ea. 2956.00

N

**Thordon bearing, Grade Orange (5.5" OD x 4" ID x 7.87" (200mm) LG)

PN: F54615-02-8-1

NSN: 3120-21-914-2012

1 ea. 525.03

N

**Thordon bearing, Grade Orange (5.5" OD x 4" ID x 11.41" (290mm) LG)

PN: F54615-02-8-0

NSN: 3120-21-914-2011

1 ea. 558.05

5 N **Intermediate bearing carrier

NSN: 3130-01-F11-2388

P/N: 87 WPB 243-001, Item 17

1 ea. 591.86

6 N **Aft bearing carrier NSN: 3130-01-F11-2200 PN: 87 WPB 243-001, Item 14

1 ea. 1931.31

7 Y Port Propeller (LH) PN: 706-3350.00 LH

NSN: 2010-01-459-0421

1 ea. 9542.05

7 Y *Propeller Nut Wrench N/A 1 ea. 200.00 7 N Propeller Nut PN: 5317350 NSN: 2010-01-458-

1 ea. 322.07

7 N Propeller Nut, Locking PN: 5317355 NSN: 5310-01-458-

1 ea. 285.10

7 N Anode, Propeller Nut PN: 87WPB243001ITEM39 NSN:

5342-01-481-8403

1 ea. 153.06

8 Y *Transducer Cover Plate N/A 2 ea. 50.00

N Soft Patch Kit

NSN: 8040-01-601-2062

PN: 87SPK CPB-1 PATCH

1 ea. 1098.11

*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 vii (Rev-0)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

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

Work Item

Title

1 Propulsion Shaft, Port, Renew

8 Drydock viii (Rev-0)

PRINCIPAL CHARACTERISTICS

87' WPB

PHYSICAL

Length overall 87' Length between perpendiculars 81' 7" Depth 10' 11" Maximum beam 19.4' Draft, mean to design waterline 5' 9" Height of highest projection 50.2' Full load displacement 93.5 long tons Minimum operating displacement 83.9 long tons Displacement, light ship 77.9 long tons Framing Longitudinal Bulkheads Four watertight bulkheads located below the Main Deck Anchor 40 lb Fortress with 480 ft. 3 strand 5/8" dia. Line stayset

HULL

Hull/main weatherdeck material ABS Grade AH 36 Superstructure 5086 Aluminum

MACHINERY

Main propulsion Two MTU 8V396TE94, sequential turbo-charged diesels Reduction gears Two ZF Type BW 255 Propulsion shaft Two AQUAMET 22, 101.6mm Shaft diameter 4" Shaft seal Two John Crane mechanical seals Shaft bearing, intermediate Thordon Elastomeric Bearing Shaft bearing, aft Thordon Elastomeric Bearing Number of propellers 2 Number of blades 5 Diameter of propeller 1040mm Pitch 1230 mm fixed Shaft RPM 828 Rudders Two 316L Stainless Steel Ship's service generators Two Man Model D08241F01 diesel with Stanford 60KW Generator

TANK CAPACITIES

3-9-1-f (fuel oil) 1402 gal 3-9-2-f (fuel oil) 1402 gal 3-12-2-f (waste oil) 86 gal 3-12-1-f (oily water) 86 gal 3-7-0-q (sewage collection) 352 gal 3-7-1-q (grey water) 52 gal 3-12-1-w (fresh water) 200 gal 3-12-2-w (fresh water) 200 gal

1 (Rev-0)

00000_0618_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 (COMDTINS) 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.

3.2 Contractor-provided fire extinguishers. The Contractor shall provide portable fire extinguishers.

3.2 Fire watch requirements. The Contractor shall refer to 3.3.1.3 (Fire watch requirements) of SFLC Std Spec 0000, in accomplishing the following task:

Provide portable fire extinguishers for Coast Guard fire watch personnel. Coast Guard fire watch is in lieu of contractor personnel during the hours of 0800-1600, Monday through Friday, and limited to two Coast Guard fire watch personnel.

Provide fire watch personnel and fire extinguishers for the duration of the availability period, during and beyond noted Coast Guard fire watch support.

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 NDE 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.

3.5.1 USCG facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix B, Requirements for Environmental Protection at USCG Facilities, 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 (Rev-0)

3.5.1.1 USCG Generator status. The activity Generator Status for the Coast Guard Facility is _________.

3.5.1.2 Plans and permits. The CG Facility has unit specific permits including the following:

Spill Prevention Control and Countermeasures (SPCC) Plan: Unit has a SPCC Plan which requires certain unit-specific procedures be followed for the storage, inspection, and transfer of petroleum products in containers 55 gallons or greater.

National Pollutant Discharge Elimination System (NPDES) Storm Water (SW) Permit: Unit has an NPDES SW permit which requires unit-specific procedures be followed for the storage and inspection of equipment and materials which may contribute contaminants to storm water discharges.

Air Emission Permit: Unit has a Air Emission Permit which requires unit-specific procedures be followed for the emissions of VOCs and hazardous air pollutants.

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, 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 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 Change to SFLC Std Spec 0000, paragraph 1.3. ‘Acronyms and term definitions’, page 5, “PCL (Paint

4 (Rev-0)

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.”

3.7.1.1 Change Std Spec 0000 paragraph 3.2.4.2.3(QP 1 inspector or tech rep duties) bullet, “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph 3.1.19 of SFLC Std Spec 6310 (Critical drying time requirements)).” to “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph 3.1.17 of SFLC Std Spec 6310 (Critical drying time requirements)).”

3.7.2 Change to Std Spec 5000, paragraph D2.2.1.1 bullet, "For running rigging, furnish class 6x37, uncoated, independent wire rope core (IWRC), right regular lay (RRL) wire rope or Dyform-18, rotation resistant wire rope," to "For running rigging, furnish class 6x36, uncoated, independent wire rope core (IWRC), right regular lay (RRL) wire rope or Dyform-18, rotation resistant wire rope."

3.7.2.1 Change to Std Spec 5000, page D-2, Table D-1 title from "DYFORM-18, 6X19 AND 6X37 IWRC RRL," to " DYFORM-18, 6X19 AND 6X36 IWRC RRL"

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.

5 (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

6 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

VESSEL NAME HULL #

WORK ITEM

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 |

NAME OF QP-1/NACE INSPECTOR SIGNATURE CERT. # DATE / TIME

7 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

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

VESSEL NAME HULL # WORK ITEM

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: ABRASIVE 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

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

MEAN MIL READING (IAW ASTM D4417-METHOD C) FOR ABOVE 15 READINGS:

NAME OF QP-1/NACE INSPECTOR SIGNATURE CERT. # DATE /

8 (Rev-0)

TIME

9 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

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

VESSEL NAME HULL # WORK ITEM

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: ABRASIVE 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):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Mean Reading (mils)

Mean Reading (mils) IAW ASTM DD4417).

10 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

VESSEL NAME HULL # WORK ITEM

SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15.

DATE TEST LOCATIONS CONDUCTIVITY (MICROSIEMENS/CM)

11 (Rev-0)

12 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

VESSEL NAME HULL #

WORK ITEM

COATING MFG PRODUCT NAME

BATC

H #

INDUCTI

ON 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.

1 AVG. BMR DEVIATION

1 AVG. BMR DEVIATION

APPLICATION METHOD (AIRLESS,

CONVENTIONAL SPRAY, ROLLED)

AVERAGE DFT

13 (Rev-0)

24307_MWS_1019_87WPB

WORK ITEM 1: Propulsion Shaft, Port, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the port propulsion shaft.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y Propeller Shaft NSN: 2010-01-458-9175 1 ea. 10,195.95 N **Upper Roller Bearing NSN: 3110-01-512-5534 1 ea. 287.43

N **Wartsila EL Seals Kit PN: H75492-01

NSN: 2040-01-565-9776

1 ea. 7243.42

N Kit, Rebuild, Seal Assembly NSN: 5330-01-F18-5383

PN: 388728

1 ea. 2956.00

*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.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details

Coast Guard Drawing 87 WPB 995-001, Rev -, Jigs and Fixtures for Shaft Installation

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

Coast Guard Technical Publication (TP) 4499, Jun 2018, SWBS 243, Stern Tube Seal-Model 442C

Coast Guard Technical Publication (TP) 4500, Sep 2017, SWBS 233, Engine Change-Out Guide

– Waterborne Main Diesel

None.

14 (Rev-0)

3. REQUIREMENTS

3.1 General.

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

3.2.2 Visual inspections.

3.5.1 Stern tube/shaft seal interface inspection.

3.6.1 Shaft measurements.

3.1.2 Tech rep – shaft seals. The Contractor shall provide the services of a qualified OEM Tech Rep, who is certified on the Chesterton seal system, to do the following, on site:

Advise on manufacturer's proprietary information pertinent to the system.

Assist with final in-water assembly of the seal.

3.1.2.1 Ensure that the Tech Rep has a résumé of certification from OEM with the system/equipment stated above.

3.1.2.2 Submit a copy of the Tech Rep’s résumé of certification to the COR at the Arrival Conference.

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

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

Deck plates.

Deck plate framing.

Stern tube mid bearing access hatch.

Stern tube aft bearing access hatch.

Stern tube forward access hatch.

Propeller.

Rudder.

3.1.5 Tolerances. Unless otherwise specified, all measurements shall be accurate to within the nearest

0.001 inch.

3.2 Port shaft renewal.

3.2.1 Shaft removal. Using Coast Guard Drawing 87 WPB 243-003 and TP 4499 as guidance, the Contractor shall remove the port shaft seal, propulsion shaft coupling, and propulsion shaft. Protect all removed components from damage during removal, storage, and reinstallation.

3.2.2 Visual inspections. Visually inspect the shaft, shaft seal, and intermediate and aft propulsion shaft bearings for excessive and/or abnormal wear. Record the maximum wear amount and location in each journal area, if any. Submit a CIR.

15 (Rev-0)

3.3 Government’s right for component change out.

3.3.1 The Contractor shall be aware that the Government reserves the right to furnish new shaft bearing(s), bearing carrier(s), shaft seal, propeller, upper rudder bearing and/or rudder seal for installation in place of the existing equipment. If the Government exercises this right, the Contractor shall handle disposition of each renewed component in accordance with the applicable MTI designation and all applicable Federal, state, and local regulations.

3.3.2 Mandatory turn-in repackaging. In the presence of the Coast Guard Inspector, the Contractor shall repackage the removed MTI equipment, using the existing containers and accessories, in the same method the new GFP was received.

3.4 Change request authorization – alignment survey. If a Change Request has been authorized and released by the KO, the Contractor shall conduct the following in the presence of the Coast Guard Inspector and while using Coast Guard Drawing 87 WPB 243-003 as guidance, prior to and immediately following (at a minimum) bearing renewal:

3.4.1 Removed the affected bearing(s) from the bearing carrier(s).

3.4.2 Conduct an alignment survey of the port propulsion system via optical or laser methods to assist in proper placement of the new bearing(s). Submit a CFR for the following work including the applicable portions of the alignment survey forms at the end of this work item.

NOTES

Piano wire may NOT be used unless done in conjunction with either the optical or laser method.

Alignment measurements shall be conducted to 0.001”.

Minimize thermal effects by performing the following late in the evening or before sunrise.

3.4.2.1 Establish a reference line using the “Target Points” as labeled on Coast Guard Drawing 87 WPB 243-003 (i.e., the aft end of the aft-most bearing, stern tube flange, and the reduction gear output flange center).

3.4.2.2 Measure and record the vertical and athwartship positions relative to the reference line of the shaft seal flange and each bearing via targets placed in the forward and aft ends of the bearings.

3.4.2.3 Provide recommendations, if any, (i.e., movement magnitude/direction) for alignment correction.

NOTE

Ensure the final, corrected orientation of machinery will not negatively/prohibitively impact mounting (i.e., engine footing hanging off of foundation rails, etc.), or system interfaces (i.e., exhaust connection point alignment or raw water connections).

3.5 Stern tube/shaft seal interface inspection. Submit a CIR for the following inspection.

16 (Rev-0)

3.5.1 To facilitate shaft seal reinstallation, PRIOR to undocking, the Contractor shall inspect and verify the stern tube/shaft seal interface is in accordance with section 4.1 of TP 4499. All conditions measured shall be compared to allowables per TP 4499. Submit a CIR.

3.5.2 If a Change Request has been authorized and released by the KO, the Contractor shall make repairs to the stern tube/shaft seal interface to make compliant with the conditions listed under section 4.1 of TP 4499.

3.6 GFP shaft assembly inspections and installation. The Contractor shall inspect and measure the Government-furnished shafts as follows:

3.6.1 Shaft measurements. Submit a CIR for the following:

3.6.1.1 For inspections and measurements, place the shaft on two precision rollers 24 inches from each end of the shaft or on lathe centers- no additional supports (i.e., intermediary rollers, etc.) shall be used.

3.6.1.2 Prior to measuring shaft machined surfaces, spin the shaft on the lathe for approximately two hours at a slow speed (with no accessories attached to the shaft) to eliminate all non-permanent bending/sagging from handling and storage.

3.6.1.3 Conduct complete propulsion shaft run-out readings via dial indicator survey at the following:

small and large ends of each taper fore and aft ends of each bearing journal area three equally spaced locations between the bearings three equally spaced locations between the intermediate bearing and coupling taper

3.6.1.4 Record the run-out survey measurements on the form (titled “Shaft Run-out Measurement Form”) at the end of this work item and submit a CIR. From the run-out readings, determine straightness or any bend including magnitude and location. Each station shall be marked at the position of the maximum run-out on the periphery of the shaft.

3.6.2 Shaft coupling hub fit check. Prior to reinstalling the shaft, the Contractor shall blue check the shaft-to-coupling-hub taper fit. If required, with the key in place, perform hand-stoning of the coupling hub ID, as required, to achieve a minimum of 80 percent uniform contact. After all bluing/fitting, and with hub installed, measure and record coupling OD radial run-out, coupling face run-out, and counter bore run-out; using TP 4500, Enclosure 3 as guidance, verify all measurements are in tolerance. Submit

CFR.

3.7 New port shaft installation. Install the Government-furnished port shaft and all associated components/equipment.

3.8 Bearing clearance checks. Verify shaft OD to bearing ID diametrical clearances (min .033” and max 0.120” allowed) for each shaft and bearing. Submit CFR.

3.9 Shaft seal reinstallation. Under the supervision of the tech rep, reassemble and reinstall the shaft seals with new Government-furnished mechanical rebuild kit components. Test the shaft seals (mechanical and inflatable) prior to undocking and during sea trials.

17 (Rev-0)

3.10 Final drydocked shaft torque measurements. While still in drydock, after installing the propeller and shaft, using a torque wrench, measure the torque required to turn each shaft. Submit a CFR.

3.11 Final waterborne alignment measurements.

3.11.1 Measurements. After vessel is undocked and liquid laden for 24 hours, using Coast Guard TP 4500 (Enclosure 3) and Coast Guard Drawing 87 WPB 995-001 as guidance, and in the presence of the Coast Guard Inspector, measure and record the engine/reduction-gear alignment data listed below using the Government-furnished alignment kit (shaft support). Center the shaft in the seal bore, space propulsion shaft coupling and reduction coupling faces 0.25” apart (to ensure complete disengagement), record the following measurements, and submit a CFR:

parallel measurements between shaft coupling and reduction gear coupling ODs (concentricity);

angular measurements between shaft coupling and reduction gear coupling faces;

shaft coupling and reduction gear coupling gap. Submit CFR.

3.11.2 Change request authorization – Main Diesel Engine (MDE)/Reduction Gear (RG) realignment. If a Change Request has been authorized and released by the KO, the Contractor shall realign the main diesel engine and reduction gear.

3.12 Operational test, post repairs. After completion of work, the Contractor shall thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR.

4. NOTES

4.1 Equipment operation. Coast Guard personnel will operate all shipboard machinery and equipment during all operational tests.

4.2 Chesterton tech rep. Chesterton may be contacted for a list of certified Chesterton tech reps via:

Bob Martin

Market Development Manager

Govt./Navy/Marine Markets

A.W. Chesterton Co.

Mobile: 781-640-0470

4.3 Inspection forms. See below.

18 (Rev-0)

PORT SHAFT RUN-OUT MEASUREMENT FORM

VESSEL NAME AND HULL NUMBER: STINGRAY 87305

POINTS ALONG LENGTH A B C D

TOTAL

INDICATED

RUN-OUT (TIR)

Aft Taper (small end)

Aft Taper (large end)

Aft Bearing Journal (aft end)

Aft Bearing Journal (fwd end)

Aft-Int Brg Journal Location 1

Aft-Int Brg Journal Location 2

Aft-Int Brg Fwd Journal Location 3

Int Bearing Journal (aft end)

Int Bearing Journal (fwd end)

Int Journal-Taper Location 1

Int Journal-Taper Location 2

Int Journal-Taper Location 3

Shaft Seal

Fwd Taper (large end)

Fwd Taper (small end)

Inspection Facility: ____________________ Date and Time:____________________

Inspector Signature: ____________________

C

A

D B

19 (Rev-0)

PORT HUB ALIGNMENT MEASUREMENT FORM

VESSEL NAME AND HULL NUMBER: STINGRAY 87305

CIRCLE ONE: PRE-DOCKING DOCKED UNDOCKED

ALL

MEASUREMENTS

IN INCHES

SHAFT INITIAL

POSITION

SHAFT

ROTATED

90°

SHAFT

ROTATED

180°

SHAFT

ROTATED

270° Gap

Parallel A

Parallel B

Parallel C

Parallel D

Angular A

Angular B

Angular C

Angular D

Inspection Facility: ______________________ Date and Time:_____________________

Inspector Signature: ____________________

20 (Rev-0)

REDUCTION GEAR OUTPUT SHAFT/FLANGE/BEARINGS

21 (Rev-0)

ALIGNMENT SURVEY FORMS (PRE AND POST-REPAIR)

22 (Rev-0)

ALIGNMENT OFFSETS AND BEARING REACTIONS FORMS

NOTE

Negative bearing reactions are prohibited.

INITIAL ASSESSMENT - PORT

Location X offset

(negative, outboard) Y offset (negative, below target x axis)

RECOMMENDED CORRECTIONS (IF ANY) - PORT

Location X offset

(negative, outboard) Y offset (negative, below target x axis)

Expected bearing reactions at bearing axial centers Rresultant (bearing resultant force)

FINAL VERIFICATION - PORT

Location X offset

(negative, outboard) Y offset (negative, below target x axis)

23 (Rev-0)

23320_MWS_1019_87WPB

WORK ITEM 2: Main Engine/Reduction Gear, Port, Realign

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to realign the port main diesel engine and reduction gear assembly to the propeller shaft.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y *Alignment jig N/A 1 ea. ----

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

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 87 WPB 182-001, Rev C, Main Engine & Generator Foundations

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details

Coast Guard Drawing 87 WPB 995-001, Rev -, Jigs and Fixtures for Shaft Installation

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 4500, Sep 2017, SWBS 233, Engine Change-Out Guide

– Waterborne Main Diesel

OTHER REFERENCES

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech rep.

Not applicable.

24 (Rev-0)

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

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

3.1.5 Personnel qualification. The Contractor shall ensure that the shaft alignment is performed under the direct supervision of personnel experienced in and regularly engaged in shaft and engine alignment.

Personnel performing alignment work shall be:

familiar with manufacturer's alignment techniques and be able to assist with proper bearing and shaft alignment;

able to comply with engine/reduction gear manufacturer's installation standards.

3.1.5.1 Personnel engaged in the supervision of the alignment work shall possess a résumé of demonstrated experience with engine and reduction gear systems.

3.1.5.2 Submit a copy of the supervisor’s résumé and any applicable references to the COR at the Arrival Conference.

3.2 Alignment particulars. Using the references listed under Section 2, the Contractor shall accomplish the following:

3.2.1 Alignment preparation. Prior to shaft realignment, the Contractor shall ensure the following conditions are met for at least 24 hours before the alignment check:

The vessel is waterborne with fuel and water filled to normal operating levels, a minimum of three-quarters capacity.

All major equipment and machinery weighing over 1,000 pounds (450 kilograms) are either installed or simulated by equivalent weights appropriately located.

3.2.2 Realignment. The Contractor shall accomplish the following for shaft-to-MDE/reduction gear realignment using Coast Guard Drawings 87 WPB 182-001, 87 WPB 243-003, and TP 4500 as guidance.

NOTES

The following torque values apply:

Chock mounts – torque foot to foundation fasteners to 192 ft-lbs (270 N-m).

Shim mounts - torque foot to foundation fasteners to 369 ft-lbs (500 N-m).

Coupling bolts – torque coupling bolts to 317 ft-lbs (430 N-m).

3.2.3.1 Alignment adjustment. Correct any misalignment by repositioning the propulsion engine/reduction gear; secure the mounts to the foundations.

NOTE

Epoxy-resin chocking shall be used for gaps greater than 3/8” between the bottoms of the mounting feet and tops of the foundation rails.

25 (Rev-0)

Use stainless steel shims for gaps less than or equal to 3/8”.

3.2.3.2 Final readings. Recheck all the final alignment readings as follows and record on the forms under Paragraph 4.2:

parallel measurements between shaft coupling and reduction gear coupling ODs (concentricity);

angular measurements between shaft coupling and reduction gear coupling faces;

shaft coupling to reduction gear coupling gap.

3.3 Operational test. After completion of work, the Contractor shall thoroughly test during sea trials, in the presence of the Coast Guard Inspector, and demonstrate the propeller shaft to be in satisfactory operating condition and operates without binding. Inspect and correct any abnormal noise and vibration generated from the shaft or bearings (see 4.1, Equipment operation). Submit CFR.

4. NOTES

4.1 Equipment operation. Coast Guard personnel will operate all shipboard machinery and equipment during all tests.

4.2 Alignment inspection form. See below.

26 (Rev-0)

CIRCLE ONE: PORT STARBOARD - HUB ALIGNMENT MEASUREMENT FORM

VESSEL NAME AND HULL NUMBER: _______________________

ALL

MEASUREMENTS

IN INCHES

SHAFT INITIAL

POSITION

SHAFT

ROTATED

90°

SHAFT

ROTATED

180°

SHAFT

ROTATED

270° Gap

Parallel A

Parallel B

Parallel C

Parallel D

Angular A

Angular B

Angular C

Angular D

Inspection Facility: ______________________ Date and Time:_____________________

Inspector Signature: ____________________

27 (Rev-0)

24303_MWS_1019_87WPB

WORK ITEM 3: Intermediate Water-Lubricated Propulsion Shaft Bearings, Port, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the port intermediate water-lubricated bearing.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

N

**Thordon bearing, Grade Orange

(5.5" OD x 4" ID x 7.87" (200mm) LG)

PN: F54615-02-8-1

NSN: 3120-21-914-2012

1 ea. 525.03

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details

COAST GUARD PUBLICATIONS

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

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

3.1.2 Tech Rep.

28 (Rev-0)

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

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

3.2 Renewal particulars. Using Coast Guard Drawing 87 WBP 243-003 as guidance, the Contractor shall accomplish all work herein.

3.3 Removal. The Contractor shall remove and dispose of the existing bearing and inspect the intermediate carrier for damage.

3.4 Fitting. The Contractor shall skim machine and fit the new Government-furnished bearing to suit carrier and shaft dimensions as specified on Coast Guard Drawing 87 WPB 243-003 and perform the following:

3.4.1 Cut the bearing to maintain interference fit tolerance between bearing and carrier, and maintain clearance tolerance between shaft and bearing.

3.4.2 Measure and record the final bearing dimensions.

3.4.3 Submit a CFR.

3.5 Installation. The Contractor shall install the new Government-furnished bearing and renew all disturbed fasteners.

3.6 Operational test, post repairs. After completion of work, the Contractor shall thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR.

4. NOTES

This section is not applicable to this work item.

29 (Rev-0)

24304_MWS_1019_87WPB

WORK ITEM 4: Aft Water-Lubricated Propulsion Shaft Bearing, Port, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the port aft water-lubricated bearing.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

N

**Thordon bearing, Grade Orange

(5.5" OD x 4" ID x 11.41" (290mm) LG)

PN: F54615-02-8-0

NSN: 3120-21-914-2011

1 ea. 558.05

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details

COAST GUARD PUBLICATIONS

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

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

30 (Rev-0)

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

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

3.2 Renewal particulars. While using Coast Guard Drawing 87 WPB 243-003 as guidance, the Contractor shall accomplish all work herein.

3.3 Removal. The Contractor shall remove and dispose the existing bearing and inspect the aft bearing carrier for damage. Submit a CFR.

3.4 Fitting. The Contractor shall machine and fit the new Government-furnished bearing, as required, to suit carrier and shaft dimensions as specified on Coast Guard Drawing 87 WPB 243-003 and perform the following:

3.4.1 Cut the bearing to maintain interference fit tolerance between bearing and carrier, and maintain clearance tolerance between shaft and bearing.

3.4.2 Measure and record the final bearing dimensions.

3.4.3 Submit a CFR.

3.5 Installation. The Contractor shall install the new Government-furnished bearing and renew all disturbed fasteners.

3.6 Operational test, post repairs. After completion of work, the Contractor shall thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR.

31 (Rev-0)

24305_MWS_0419_87WPB

WORK ITEM 5: Intermediate Bearing Carrier, Port, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the port intermediate bearing carrier.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

N **Intermediate bearing carrier

NSN: 3130-01-F11-2388

P/N: 87 WPB 243-001, Item 17 1…