USCGC SPAR (WLB 225B) Unplanned Drydock Spec Sheet (21-AUG-26).pdf

USCGC SPAR (WLB 206)

SPECIFICATION FOR UNPLANNED DRYDOCK REPAIRS

FY2026

Developed By: Bryan G Wright

(Rev-0, 16 July 2026)

USCGC SPAR (WLB-225B) UNPLANNED AVAILABILITY FY2026

ii (Rev-0)

TABLE OF CONTENTS

TABLE OF CONTENTS ............................................................................................................................. ii 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: Fire Prevention Requirements - Drydock WORK ITEM 2: OD Box Major Inspection and Repair WORK ITEM 3: Controllable Pitch Propeller, System Maintenance, Perform WORK ITEM 4: Controllable Pitch Propeller Hub, General Maintenance with EAL, Perform WORK ITEM 5: Propeller Blade, Removal and Installation WORK ITEM 6: Drydock WORK ITEM 7: Temporary Services, Provide - Cutter WORK ITEM 8: Propulsion Shaft Seals, Mechanical Overhaul And Inflatable Renewal WORK ITEM 9: Towing Services, Provide WORK ITEM 10: Sea Trial Performance, Support, Provide 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 225B WLB 801-001, Rev A, Lines and Offsets

Coast Guard Drawing 225B WLB 801-003, Rev -, Curves of Forms and Cross Curves of Stability

Coast Guard Drawing 225B WLB 801-006, Rev G, Docking Drawing

Coast Guard Drawing 225B-WLB 233-1, Rev F, Propulsion Train Installation Drawing

Coast Guard Drawing 225B-WLB 243-1, Rev J, Propulsion Shafting Arrangement

Coast Guard Drawing 225B-WLB 243-2, Rev G, Stern Tube and Bearing A & D

Coast Guard Drawing 225B-WLB 556-8, Rev C, CPP Hydraulic System Diagram

Coast Guard Drawing 225B-WLB 562-2, Rev D, Rudder Structural A & D

Coast Guard Drawing 225B-WLB 611-1, Rev D, Lifting Pads - Main and Aux Machinery Room

Coast Guard Drawing 225B-WLB 243-1, Rev J, Propulsion Shafting Arrangement

Coast Guard Drawing 225B-WLB 243-2, Rev G, Stern Tube and Bearing A & D

Coast Guard Drawing FL 1204-003, Rev A, Welded Padeyes & Link

NAVSEA Dwg 803-2145807, Propulsion Shafting & Components

COAST GUARD PUBLICATIONS

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

Coast Guard Technical Publication (TP) 3524, 2013, Manufacturer's Instruction Book-SWBS Group(s)

243-262

Coast Guard Technical Publication (TP) 3574, May 1996, Manufacturer's Instruction Book-SWBS

Group(s) 633-638

Coast Guard Technical Publication (TP) IB-H2-0002-V0, Nov 2024, PROPULSION SHAFTING AND

BEARINGS - MODEL 01-BCP, 587.55TS-94365A & 1K571500 - TECHNICAL MANUAL

Coast Guard Technical Publication (TP) IB-H2-0003-V0, Nov 2024, PROPELLER SYSTEM – CPP –

MODELS 102 & 110251007 – INSTRUCTION MANUALS

Coast Guard Technical Publication (TP) IB-H2-0012-V0, Sep 2025, REDUCTION GEAR MODELS

96DHCMG-CP & 96DHCMGH-CP OPERATING & MAITENANCE INSTRUCTIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General

Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and

Allied Processes v (Rev-0)

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and

Allied Processes

Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2022, Auxiliary

Machine Systems

Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), 2022, Fire

Prevention and Response

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2022, Drydocking

Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2022, Temporary

Services

OTHER REFERENCES

Code of Federal Regulations (CFR) Title 29, Part 1915, Occupational Safety and Health Standards for

Shipyard Employment

Commercial Item Descriptions (CID) A-A-59323, Rev A; Cloths, Cleaning, Low-Lint

MIL-PRF-24176, 2004, Cement, Epoxy, Metal Repair and Hull Smoothing (Metric)

Naval Sea Systems Command (NAVSEA) S9243-AW-TRS-011, Surface Ships Main Propulsion Shafting

Refurbishment Procedures, Volume I, Part 1

Naval Sea Systems Command (NAVSEA) S9243-AW-TRS-012, Surface Ships Main Propulsion Shafting

Examination, Test and Repair Action Record, Volume 1, Part 2

NAVSEA Technical Publication T9074-AD-GIB-010/1688, (TP 1688), July 2012, Requirements for

Fabrication, Welding, and Inspection of Submarine Structure

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 11 (SSPC-SP 11), 2007, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation

Standard SSPC-SP WJ-2/NACE WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough

Cleaning

The Society for Protective Coatings (SSPC)/NACE Joint Surface Preparation Standard SSPC-SP

10/NACE No.2, 2004, Near-White Blast Cleaning vi (Rev-0)

CONSOLIDATED LIST OF GOVERNMENT-FURNISHED PROPERTY

The following is a list of properties 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)

2 N OD Box Seal Kit NSN: 5330-01-522-7327 1 ea. 1,862.50

2 N Pilot Valve

NSN: 4820-01-394-2275

PN: CBGH-LKN

2 ea.

205.00

3 N Stat-O-Seal Washers NSN: 5310-01-212-5987 PN:

0-4-3-5

12 ea. 55.61

3 N O-Ring, Hub Flange

Bolt Cover

NSN: 5331-00-983-9878 PN:

0-2-2-5

12 ea. 50.00

4 Y **Blade Bolts NSN: 5306-01-410-6893 4 ea. 1,854.12

4 N Blade Bolt O-rings NSN: 5330-01-408-7251 PN:

0-3-2-1

48 ea. 2.25

4 N Blade Seal NSN: 5331-01-623-0621 PN:

2-472 KA174-75

4 ea. 55.00

4 Y *Lifting Device, Propeller Blade

NSN: 2020-01-F02-6825 1 ea. 100.00

5 Y *Lifting Device, Propeller Blade

NSN: 2020-01-F02-6825 1 ea. 100.00

5 N Blade Bolt O-rings NSN: 5330-01-408-7251 PN:

0-3-2-1

48 ea. 2.25

5 N Blade Seal NSN: 5331-01-623-0621 PN:

2-472 KA174-75

4 ea. 55.00

6 Y *Transducer Cover

Plate

N/A 4 ea. 50.00

8 N 225' WLB Major

Overhaul Kit

NSN: 5330-01-520-5284 1 ea. 67,931.41

8 N **225' WLB Seat

(Split)

NSN: 5330-01-645-3665 1 ea. 17,913.71

8 Y *Seal Compression

Tool

Onboard Tool 1 ea. 200.00

*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 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

3 Controllable Pitch Propeller, System Maintenance, Perform

4 Controllable Pitch Propeller Hub, General Maintenance with EAL, Perform

8 Propulsion Shaft Seals, Mechanical Overhaul and Inflatable Renewal viii (Rev-0)

PRINCIPAL CHARACTERISTICS

225' WLB (B-CLASS)

PHYSICAL

Length overall 225' 0"

Length between perpendiculars 206' 0"

Maximum beam 46'

Designed draft 13' 0"

Full load displacement 1905.6 Long Tons SW

Light ship displacement 1500.7 Long Tons SW

Minimum operating displacement 1869.2 Long Tons SW

Mast height (above 12' waterline) 67' 5"

Anchor Two 4000 lb standard Navy stockless anchors, 8 shots each, port and starboard, 1-3/8 die lock chain

HULL

Bilge keels (port & starboard) Frames 42-79

Frame spacing

FR 0 to 12 21"

FR 12 to 30 22"

FR 30 to 102 24"

MACHINERY

Main propulsion Diesel Reduction

Diesel engines Two Caterpillar 3608, TA, 3100 BHP each @ 900 RPM

Number of propellers 1

Number of blades 4

Diameter 10'

Pitch Controllable

RPM 254

Ship's service diesel generators Two Caterpillar 3508 TA, 450 KW

Emergency diesel generator One Caterpillar 3406 DITA, 280 KW

Shore tie Two 450 VAC, 400 Amp, 3-wire

Shaft bearing, forward Cooper Bearing 01-BCP-1400-EX-TL

Shaft bearing, aft Water Lubricated Cutless Bearing

TANK CAPACITIES

Diesel oil 76,498 gal.

Fresh water capacity 8056 gal.

Hydraulic oil capacity 2785 gal.

Lube oil storage 764 gal.

Grey water tank 2700 gal.

Sewage holding tank 1700 gal.

1 (Rev-0)

00000_0226_FLT

REC_00000_FLT_Commercial Project @ Contractor’ Facility (0121)

General Requirements

1. SCOPE

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

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and

'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is

Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

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

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General

Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and

Allied Processes

Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), 2022, Fire Prevention and Response

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures

OTHER REFERENCES

Code of Federal Regulations (CFR) Title 29, Part 1915, Occupational Safety and Health Standards for

Shipyard Employment

NAVSEA Technical Publication T9074-AD-GIB-010/1688, (TP 1688), July 2012, Requirements for

Fabrication, Welding, and Inspection of Submarine Structure

2 (Rev-0)

3. REQUIREMENTS

3.1 General. The Contractor must conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability. The requirements in this WI applies to all work under the scope of this contract, whether explicitly stated in all following work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.

3.1.1 The Contractor must conform to all requirements specified in SFLC Std Spec 5550 and in the Fire

Protection and Response work item, as applicable, during the performance of this availability.

3.1.1.1 Fire Safety Plan submission. The Contractor must submit a copy of the CFR 1915, Subpart P, Fire Safety

Plan with the Contractor’s bid when work will be conducted in a Contractor–owned facility. Include any MOA(s) with local firefighting facilities.

3.1.1.2 Fire Plan submission. The Contractor must submit a copy of the developed availability specific fire plan as requested in the Fire Protection and Response work item, with the Contractor’s bid.

NOTE

NAVSEA drawings listed will be available FOR INSPECTION ONLY from the Coast

Guard Port Engineer post-award. SFLC will not redistribute NAVSEA documents.

Contractors can apply to NAVSEA headquarters directly for copies.

3.2 Fire watch requirements. The Contractor must 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 must 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. The Contractor must obtain a written KO authorization to deviate from any coatings required in SFLC Std Spec 6310 Appendix C before work.

3.3.3 In-process quality control measures. The Contractor must abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).

3.3.3.1 Quality control requirements. The Contractor must abide by the following when performing preservation related inspections. The following measurements must be randomly spaced throughout for the purposes of providing a representation of the entire prepared or coated surface.

3 (Rev-0)

3.3.3.1.1 Surface profile measurements. One surface profile measurement must be taken for every 200 square feet for the first 1000 square feet; for each additional 500 square feet or less, one profile measurement must be taken.

Profile measurements must be taken in accordance with SFLC Std Spec 6310, paragraph 3.1.8.3 (Surface profile measurements). A “measurement” for surface profile is defined as follows:

• ASTM D4417, Method B: One profile measurement is the average (mean) of 10 individual readings.

• ASTM D4417, Method C: One profile measurement is the average (mean) of 2 individual readings.

3.3.3.1.2 Soluble salt conductivity measurements. 5 conductivity measurements must be taken every 1000 square feet. For submerged (immersed) applications conductivity measurements must not exceed 30 microsiemens/cm.

For non-submerged (non-immersed) applications conductivity measurements must not exceed 70 microsiemens/cm. If a conductivity check fails, clean the surface in accordance with SFLC Std Spec 6310, paragraph 3.1.8.5 (Soluble salt removal).

3.3.3.1.3 Coating thickness measurements. Three area measurements must be taken for the first 1000 square feet;

for each additional 1000 square feet, perform an additional area measurement. A “measurement” for coating thickness is defined as follows:

• SSPC-PA 2 defines an area measurement as 5 separate spot measurements randomly spaced throughout a 100 square foot area.

• SSPC-PA 2 defines a spot measurement as 3 gage readings and each new gage reading the probe must be moved to a new location within a 1.5-inch diameter circle defining the spot.

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

3.5 Environmental protection requirements. The Contractor must 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 must 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 must 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 must 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 must not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.1.1 USCG Generator status. The activity Generator Status for the Coast Guard Facility is small quantity conditionally exempt.

3.5.3 Regulatory notifications. The Contractor is 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 must 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 must 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.

4 (Rev-0)

3.5.4 Environmental manager. The Contractor must appoint in writing an Environmental Manager for the project, who is responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager must 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 must 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. The Contractor must refer to site (e.g., Base) Regulations and Instructions for details regarding local policies (e.g., crane services, parking, or facility usage).

3.7 SFLC Standard Specification approved changes. Approved updates to the 2022 SFLC Standard Specifications will appear here.

3.7.1 SFLC Standard Specification 5550: Replace paragraph 3.11.3 to state, “Material supporting imminent work shall be brought on the cutter and stored where the work is being performed. Material that appreciably contributes to fire load shall be removed at the end of each work shift when personnel are not present. Trash, debris, and packaging materials shall be promptly removed from the vessel at the end of each work shift and not allowed to accumulate.” Advance the paragraph numbering of the Fire Prevention and Safety Inspection form to 3.11.4.

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 mfg.

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 mfg.

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/AMPP INSPECTOR SIGNATURE CERT. # DATE / TIME

NAME OF CG REPRESENTATIVE SIGNATURE UNIT DATE/TIME

6 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

VESSEL NAME HULL #

WORK

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.

SURFAC

E

AMBIEN

T

ΔT

| DP -

SURFACE |

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

LOCATION OF WORK (FRAME REFERENCES) AREA (SQFT)

SURFACE PREPARATION METHOD PROFILE ACHIEVED (MILS)

MIN MAX MEAN

SSPC-SP-10/AMPP No. 2

SSPC-SP WJ-2/AMPP WJ-2

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/AMPP INSPECTOR SIGNATURE CERT. # DATE /

TIME

8 (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/AMPP No. 2

SSPC-SP WJ-2/AMPP WJ-2

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 Mils Reading (IAW ASTM D4417-Method B for above 10 readings (by column):

Mean Reading

(mils)

9 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

VESSEL NAME HULL # WORK

SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15.

DATE TEST LOCATIONS CONDUCTIVITY (MICROSIEMENS/CM)

10 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

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.

LOCATION (FRAME REFERENCE):

SPOT 1 2 3 4 5 OVERALL AVG. DFT ADJUSTMENTS

1 AVG. BMR DEVIATION

3 BEFORE ADJUSTMENTS AFTER ADJUSTMENTS

AVG.

LOCATION (FRAME REFERENCE):

SPOT 1 2 3 4 5 OVERALL AVG. DFT ADJUSTMENTS

1 AVG. BMR DEVIATION

3 BEFORE ADJUSTMENTS AFTER ADJUSTMENTS

AVG.

APPLICATION METHOD (AIRLESS,

CONVENTIONAL SPRAY, ROLLED)

AVERAGE DFT

11 (Rev-0)

4.2 Tank and Void Assessment form.

12 (Rev-0)

13 (Rev-0)

55500_ACC_0323_IBCT

WORK ITEM 1: Fire Prevention Requirements - Drydock

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to minimize shipboard fire risk and to clarify the Contractors’ role in fire prevention and response.

NOTE

This work item is not separately priced. Fire prevention and response costs should be built into the overhead of the fully-burdened labor rates.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements

Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), 2022, Fire

Prevention and Response

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 Fire Plan. The Contractor must develop and implement a written fire plan in accordance SFLC Std

Spec 5550. The Contractors Fire Plan must address Fire Protection and Response specifics as required in this Work Item.

3.1.1 The availability’s specific Fire Plan must always address the following:

• material condition and fire protection boundary obstruction mitigations

• inoperable fittings log

14 (Rev-0)

• fire alarms

• firefighting equipment disposition

3.1.2 The Fire Plan must also address the following:

• fire protection system status

• communication links

• temporary services

• power disconnects

• fire prevention and safety inspections

3.2 Fire Prevention Responsible Party. The Contractor must appoint a Fire Prevention Responsible Party

(FPRP) who acts as the Contractor’s Responsible Person for fire prevention concerns during the entire availability.

3.3 Fire Prevention and Response Conference. The Contractor must participate in the Fire Prevention and

Response Conference as required in Std Spec 5550, paragraph 3.12. The participants must address the contents of SFLC Std Spec 5550, paragraph 3.12.1, as applicable.

3.4 Fire Responsibility Familiarization Tour and Initial Inspection. The Contractor must participate in the

Fire Responsibility Familiarization Tour and Initial Inspection as required in Std Spec 5550, paragraphs

3.12.2 through 3.12.4.

3.5 Material Condition and Fire Protection Boundary Obstruction Mitigation Requirements. The

Contractor must conform to all material condition and fire protection boundary obstruction mitigation requirements detailed in SFLC Std Spec 5550, paragraph 3.2.

3.6 Inoperable Fittings Log Requirements. The Contractor must conform to all inoperable fittings log requirements detailed in SFLC Std Spec 5550, paragraph 3.3.

3.7 Fire Prevention Service Particulars. The Contractor must conform to the below listed fire prevention service requirements, in accordance with SFLC Std Spec 5550.

TABLE 1 – FIRE PREVENTION SERVICE SELECTION

*SUB-PARAGRAPH TITLE Y/N

3.4 Fire prevention system status Y

3.4.1 Temporary firefighting system proposal Y

3.4.2 Emergent firefighting system inoperability approval and notification Y

3.4.3 “Disabled equipment” signage for disabled initial responder equipment Y

3.4.4 Firefighting system inoperability allowance for removed hazards Y

3.4.5 Maintain sprinkling zone operability Y

3.4.6 including all subparagaphs Hazard mitigation for maintenance of fixed extinguishing systems

Y

3.4.7 Procedure implementation for enabling/disabling fire suppression systems

Y

3.4.8 Portable water pumping requirement for vessels w/o installed capability Y

3.4.9 Limitations on operation of major machinery while firefighting systems are offline

Y

15 (Rev-0)

*SUB-PARAGRAPH TITLE Y/N

3.4.10 Liquid fuel pumping requirement for operational permanent or temporary firefighting systems

Y

3.4.11 Mechanical AFFF equipment must be available to initial responders in compartments with risk of flammable/combustible liquid spillage

Y

3.4.12 including all subparagraphs

Portable fire extinguisher requirements Y

3.4.13 Hose and reel protection Y

3.4.14 including all subparagraphs

Drydock firefighting requirements Y

3.4.15 Fire protection system status in Fire Plan Y

3.5 Fire response related communication links in Fire Plan Y

3.6 Fire response related temporary services in Fire Plan Y

3.6.1 Minimize downtime of fixed extinguishing systems Y

3.6.2 through 3.6.10 Firemain and related equipment requirements Y

3.6.11 Permanent lighting requirements Y

3.6.12 including all subparagraphs

Temporary lighting requirements Y

3.6.13 Electrical power, firefighting water, and lighting source location and testing identified in Fire Plan

Y

3.7 including all subparagraphs

Fire alarm requirements Y

3.8 Shore power manual disconnect locations identified in Fire Plan Y

3.9 Other power manual disconnect locations identified in the Fire Plan N

3.10 including subparagraph

Vessel firefighting equipment placement and disposition info in Fire

Plan

Y

3.11 Fire prevention and safety inspections in Fire Plan Y

3.11.1 Initial and daily inspection requirements Y

3.11.2 Additional details in fire inspection reports N

*Each sub-paragraph number relates directly to the identical sub-paragraph number in SFLC Std Spec 5550.

3.5 Extended fire prevention services. If the performance period of the contract is extended by the KO, the contractor must continue to provide all fire prevention services as specified herein for the extension period.

4. NOTES

This section is not applicable to this work item.

16 (Rev-0)

24580_JPH_0626_225

WORK ITEM 2: OD Box Major Inspection and Repair

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to dismount the existing OD Box and inspect, repair, and re-install.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

N OD Box Seal Kit NSN: 5330-01-522-7327 1 1,862.50

N

Pilot Valve

NSN: 4820-01-394-2275

PN: CBGH-LKN

205.00

*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 or the C4IT Service Center.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 3524, Jan 1997, Manufacturer's Instruction Book-SWBS

Group(s) 243-262

Coast Guard Technical Publication (TP) IB-H2-0003-V0, Nov 2024, PROPELLER SYSTEM –

CPP – MODELS 102 & 110251007 – INSTRUCTION MANUALS

OTHER REFERENCES

Commercial Item Descriptions (CID) A-A-59323, Rev A; Cloths, Cleaning, Low-Lint

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. None

3.2.5.3 Submit CIR if “Drain Port Modifications

17 (Rev-0)

3.1.2 Technical Representative. The Contractor shall provide the services of qualified Tech Rep, who is familiar with the Bird-Johnson Company (now Rolls Royce herein referred to as OEM) CPP system, to accomplish the following tasks – on site:

Provide manufacturer's proprietary information, software, and tools pertinent to the equipment/system.

Assist with proper repair methods, and ensure compliance with manufacturer's procedures and standards during disassembly, inspection, repair, modification, calibration, and reassembly of the equipment/system.

Technical Representative shall be present for all disassembly, inspection, and reassembly of the

Propeller and CPP system.

3.1.2.1 The Contractor shall ensure that the Tech Rep is a certified representative of Bird-Johnson

Company (now Rolls Royce herein referred to as OEM).

3.1.2.2 The Contractor shall submit the name of the Tech Rep to the COTR at the Arrival Conference.

3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection).

3.1.3.1 Cleanliness is of prime importance. If cleanliness is not maintained at all times, work may be suspended by the Contracting Officer on the advice of the Technical Representative.

NOTE

The absolute necessity of keeping the hydraulic openings of the controllable pitch propeller system contamination free cannot be over emphasized. The cleanliness must be maintained and ceaselessly pursued. Contamination of the hydraulic system would be catastrophic to performance and reliability.

3.1.3.2 When not actually performing work on the exposed oil tubes, shafting internals, or other open CPP components , they must be wrapped with plastic sheeting and then taped closed to exclude dirt and moisture.

3.1.3.3 When not actually working on the hub and upon its removal from the Propeller shaft, it must be wrapped with plastic sheeting, then taped closed to exclude dirt and moisture.

3.1.3.4 Only workers with clean clothes and tools must be assigned to work around the propeller’s open hub mechanism.

3.1.3.5 All lifting equipment, chain blocks, rope, nylon slings, and other equipment/tools must be washed clean prior to use on the CPP system to prevent dirt from falling into the system.

3.1.3.6 Only lint free rags Commercial Item Description (CID) A-A-59323, Type II must be used to wipe down hydraulic components.

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

3.2 OD Box Dismounting, disassembly, and inspection.

3.2.1 Disconnect and dismount the OD Box under the OEM Tech Reps guidance and per Section 6-7.1

“OD Box Removal” of CG Tech Pub 3524, Section 245.

18 (Rev-0)

WARNING!

Ensure the OD Box is properly supported at all times and the weight of the OD Box is never held by the oil tubes or extension tube. Improper dismounting practices has been theorized to contribute to oil tube damage and potential catastrophic failure.

3.2.2 Disassemble the OD Box under the OEM Tech Reps guidance and per Section 6-7.2 “OD Box

Disassembly” of CG Tech Pub 3524, Section 245.

3.2.3 Clean and inspect all wear parts for damage. Submit CFR with any negative findings. Use new low-lint cleaning cloths, conforming to Commercial Item Description (CID) A-A-59323 Type II, to clean external surfaces of oil and residue.

3.2.3.1 Perform the 12 QA check points at end of this specification.

3.2.4 Rotary Seal mating surface. The two end rotary seal’s sealing/mating surface must be polished to

20 micro inches surface finish or better. To clarify lip seals being discussed are depicted as PC#4 in attached Figure 2, “Drain Port Modifications”. They are Item N-2-4-24 in the GFE Overhaul Kit.

NOTE

Recently when a new OD box was introduced leakage occurred during operational testing from these end lip seals. During investigation, it was discovered the surface finish being too rough of sealing surfaces was the cause, polishing the surfaces cured the leakage.

3.2.5 Verify that the Drain Port Modification has been completed.

3.2.5.1 Rolls Royce has developed a new drain port design that drills 1/8” holes in the OD Box to relieve back pressure on seals.

3.2.5.2 Enclosed Figure 2 “Drain Port Modifications” illustrates the location of new holes.

3.2.5.3 Submit CFR if “Drain Port Modifications” has been found to have not been completed.

3.3 OD Box reassembly and remounting.

3.3.1 Reassemble the OD Box assembly under the OEM Tech Reps guidance and per Section 6-7.3

“Assemble the OD Box” of CG Tech Pub 3524, Section 245.

3.3.2 Install all provided GFE parts to the OD Box. Depending on OEM Tech Reps guidance some parts may be installed prior to OD Box mounting and others after OD Box mounting.

3.3.2.1 The below is a list of additional parts (not included in the GFE kit) that the contractor must furnish.

19 (Rev-0)

TABLE – LIST OF PARTS TO BE RENEWED (OD BOX RELATED)

PART NUMBER

(FROM TP’S

FIGURE 7-4)

OEM PART # QUANTITY

DESCRIPTION

18 N-2-3-31 4*

Polypak Seal

*this seal is extremely difficult to install. It usually takes multiple attempts to install correctly. That is why quantity is 4.

3.3.3 Install new seals and o-rings from OD Box overhaul kit as required to complete installation. Figure

1 found at the end of this specification titled “Parts Included in the Government Furnished OD Box

Overhaul Kit” describes the contents of kit.

3.3.4 With OD Box assembled and prior to mounting to Reduction Gear flange, take face run-out readings on OD Box’s mounting flange to ensure it is perpendicular to rotation. Runout should be less than .001” and close to 0.0”.

3.3.5 In coordination and timing with other work, remount the OD Box under the OEM Tech Reps guidance and per Section 8-6.6.2 “Oil Distribution Box Installation” CG Tech Pub 3524, Section 245.

WARNING!

Ensure the OD Box is properly supported at all times and the weight of the OD Box is never held by the oil tubes or extension tube. Improper dismounting practices has been theorized to contribute to oil tube damage and potential catastrophic failure.

3.3.6 With OD Box re-mounted take baseline run-out measurement of the extension tube. Figure 3, “Final

Run outs Measurements at Full Ahead” depict where to take measurements. Rotate the shaft using jacking gear to measure the Radial runout. Perform numerous complete shaft revolutions to ensure readings are consistent. Measurement point A indicates on the oil tube extension at two (2) inches fwd of the OD box.

Measurement point B, indicates as close as possible to the forward lip seal on the rotor. Measurement point C, indicates on the OD box’s stator (non-rotating housing).

3.4 CPP System Restoration (Coordinate with any other CPP work items).

3.4.1 With the CPP system fully reassembled re-fill and top off the system with new Shell Biodegradable

Fluid 68 (AW-68).

3.4.2 Process any new oil added to the hub or hydraulic system through a non-bypass filter assembly prior to its introduction into the CPP hydraulic system. Filter assembly must utilize new clean disposable filter elements with a minimum Beta 10 = 75 ratio rating. Do not exceed filter assembly and/or element flow ratings or pressure ratings (both maximum collapse as well as delta across) during filling.

3.5 Pressure Testing And Operational Testing (Coordinate with any other CPP work items).

3.5.1 After successful pressure test, test the CPP system per procedure 6-5.3.2 “Operational Test of CPP

System” of CG Tech Pub 3524, Section 245.

3.6 CPP Final Adjustments (Coordinate with any other CPP work items).

20 (Rev-0)

3.6.1 After undocking while afloat, adjust the pitch scale for Full ahead pitch position per procedure 6-3.2

“Afloat Adjustment Procedure” of CG Tech Pub 3524, Section 245.

3.7 Sea Trials (Coordinate with any other CPP work items).

3.7.1 Perform sea trial in accordance with Definite Item “Sea Trials”. During trials, the Cutter will be run at various speeds and conditions, both ahead and astern and will measure runout of the extension rod at varying pitch positions. Acceptable allowable run out is .015 TIR at designated pitch position. . The

Contractor and OEM Technical Representative must be responsible for correcting any leakage, vibration, noise, abnormal pressures, and/or excessive temperatures that arise in the CP propeller system as a consequence of the work under this specification. During trials, the Coast Guard will operate the Cutter and all equipment at low, mid, and high shaft speeds, and at full load. During sea trials (while underway), perform procedure 4-3.7 “Verify Proper Operation of the Unloading Valve” of CG Tech Pub 3524, Section 245.

3.8 Final Rolls Royce Technical Representative Report (Coordinate with any other CPP work items).

3.8.1 Within seven (7) calendar days of sea trials, submit a final Rolls Royce Technical Representative

Report. Report must document all significant findings, significant measurements (e.g. final run outs), any recommended changes to the specification, and any other pertinent discussion topics.

21 (Rev-0)

Figure 1, Parts included in the Government Furnished OD Box Overhaul Kit

22 (Rev-0)

Figure 2, Final Run-out Measurements at Full Ahead

23 (Rev-0)

Figure 3, OD Box Seal Drain Port Modification

24 (Rev-0)

Figure 4, 12 QA Checkpoints

25 (Rev-0)

26 (Rev-0)

27 (Rev-0)

28 (Rev-0)

QA Checkpont #11 (continued)

29 (Rev-0)

QA Checkpoint 12: Rotor and sleeve assembly shall be concentric and have no more than .001” run out when measured at the opposite end of the threaded interface (as depicted above).

30 (Rev-0)

1. To remove the coupling. Unbolt the MRG to Main Propulsion Shaft coupling and disconnect CPP oil tubes and remove shaft or slide/drift shat aft to allow necessary room for coupling removal. The Main

Propulsion Shaft actions are not detailed in this coupling procedure and are found elsewhere.

2. Prepare coupling for removal. Remove #38 retainer plate. In its place obtain/fabricate a temporary bearing plate. Ensure the CPP oil tubes inside the LS shaft are safely retracted inside the hollow shaft and will not be damaged. Ensure rigging is proper to support weight as well as allow coupling’s axial movement. Coupling’s weight is approximately 894lbs.

NOTE

Do not lift the coupling with steel cables or chains fed through the coupling flange bolt holes as this will damage the surface finish and result in a poor fit of the flange bolts for reassembly.

ILLUSTRATION 1, Coupling Components

3. Install at least four (4) 1.25” DIA SAE Grade 5 Threaded rod symmetrically around the coupling, tying the coupling to a properly sized strongback. Bolt holes are 2.5” DIA so larger threaded rod may be used. Detail 22-E of CG DWG 225B WLB 243-1 best illustrates the subject flange’s bolt hole pattern e.g. bolt circle for strong back matching. Two of the minimum four threaded holes should be in the coupling bolt holes in line with the 2 keys. Place a pneumatic jack (50-ton max) between strong back and the coupling’s temporary bearing plate. A hydraulic jack substitution may be requested by Contractor with reasoning included for USCG consideration and potential approval.

Figure 1, Coupling Removal Procedure (Page 1 of 3)

31 (Rev-0)

ILLUSTRATION 2, Coupling Removal Illustration

4. Pull the strongback, jack, and bearing plate tight using threaded rod’s nuts.

WARNING

Following step involves high temperature and heavy weight with and increased risk of injury. Proper personal protection gear for excessive heat and handling of weight should be employed.

5. Quickly heat the coupling (only) to between 300F and 400F. An infrared gun must be used to monitor the temperature. Heating quickly and effectively is necessary so as to raise the temperature of the coupling without raising that of the shaft also. Often a distinct pop will be heard from the coupling as the thermal expansion frees it from the interference. That is normal and another indication coupling has been heated enough to remove. For historic comparison, record KW used, heating time, and maximum temperature achieved. Do not heat the coupling for a longer period of time then necessary, as the shaft will then be sure to heat up.

6. Heating method will be by induction heating coils. An induction heater of approximate 35KW is suitable. The coupling’s OD is approx. 16” dia (for induction heating blanket selection/sizing). Ensure the heater/blanket covers the entire surface of the coupling and has good contact with the coupling surface

(but not overlap onto shafting).

7. To reinstall coupling. Install at least four (4) 1.25” DIA SAE Grade 5 Threaded rod symmetrically around the coupling, using the same holes as capscrews #83 occupied. Ensure threaded rod is fully threaded into hole.

Figure 1, Coupling Removal Procedure (Page 2 of 3)

32 (Rev-0)

33 (Rev-0)

ILLUSTRATION 3, Coupling Installation Illustration

WARNING

Following step involves high temperature and heavy weight with and increased risk of injury. Proper personal protection gear for excessive heat and handling of weight should be employed.

8. Heat coupling to same to between 300F and 425F using same induction heater. An infrared gun must be used to monitor the temperature. Pre-install the threaded rods into the end of LS Shaft Quickly move coupling once heated onto LS shaft with installed keys, install spacer and nuts and quickly advance until coupling bottoms on the shaft’s shoulder. Draw coupling in with nuts on threaded rod as required. With proper coordination and heating of the coupling, it should advance with little resistance and torque on nut

(when/if used to aid advance).

9. Quickly remove spacer and threaded rod, then install #38 retainer plate, with the 6(ea) capscrews to ensure coupling remains tightly butted on shoulder during cool-down period. Once cooled down final torque Item #83 capscrews.

10. Proceed with final assembly of propulsion train shafting following directions and requirements found elsewhere.

Figure 1, Coupling Removal Procedure (Page 3 of 3)

34 (Rev-0)

24500_JPH_0722_225

WORK ITEM 3: Controllable Pitch Propeller, System Maintenance, Perform

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to open and inspect the

Controllable Pitch Propeller (CPP) System, inspect and perform maintenance on the servo-box, and inspect and perform maintenance on the servo pumps.

NOTE

Propeller blade removal, draining and filling of…