HARRY CLAIBORNE WLM 175 UPDD FQ1 KPW 21R0.pdf

USCGC HARRY CLAIBORNE (WLM 561)

SPECIFICATION FOR UNPLANNED DRYDOCK REPAIRS

FY2021

Developed By: Kyle P Wood

(Rev-0, 10 November 2020)

USCGC HARRY CLAIBORNE (WLM-175) UNPLANNED AVAILABILITY FY2021

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record ......................................................................................................................................... iii Consolidated List of References ................................................................................................................... iv Consolidated List of Government-furnished Property ............................................................................... vii Consolidated List of Critical Inspection Items .......................................................................................... viii Principal Characteristics - TENDER ............................................................................................................ ix General Requirements WORK ITEM 1: Z-Drive Input Drive Shaft, Bearings Inspect WORK ITEM 2: Both Z-Drive Propulsion Trains, Alignment WORK ITEM 3: Z-Drive Propulsion Unit, Renew (Drydock) WORK ITEM 4: Drydock WORK ITEM 5: Temporary Services, Provide - Cutter WORK ITEM 6: Sea Trial Performance, Support, Provide WORK ITEM 7: Machinery Plant Control and Monitoring System (MPCMS), Groom WORK ITEM 8: Transom Repair WORK ITEM 9: Towing Services, 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 175 WLM 243-001, Rev -, Propulsion Shafting Arrangement Coast Guard Drawing 175 WLM 243-002, Rev F, Propulsion Shafting Arrangement Coast Guard Drawing 175 WLM 243-1, Rev -, Propulsion Shaft Arrangement Coast Guard Drawing 175 WLM 243-2, Rev F, Propulsion Shaft Arrangement Coast Guard Drawing 175 WLM 245-001, Rev A, Propeller Coast Guard Drawing 175 WLM 245-002, Rev A, Z-drive Propeller Details, Modified Design Coast Guard Drawing 175 WLM 561-001, Rev J, Z-drive Hydraulic System Diagram Coast Guard Drawing 175 WLM 635-001, Rev F, Hull Thermal and Acoustic Insulation Schedule Coast Guard Drawing 175 WLM 801-001, Rev A, Hull Lines Coast Guard Drawing 175 WLM 801-003, Rev A, Curves of Form Coast Guard Drawing 175 WLM 801-006, Rev J, Docking Drawing Coast Guard Drawing 175-WLM 202-1, Rev J, MPCMS Cabling Diagram Coast Guard Drawing 175-WLM 202-2, Rev F, MPCMS Cabling Diagram COED Coast Guard Drawing 175-WLM 202-6, Rev B, MPCMS Wiring Modifications to Main & Secondary

Consoles (551-559) Coast Guard Drawing 175-WLM 202-7, Rev C, MPCMS Wiring Data Modifications to Consoles

(COED), Hulls 551-559 Coast Guard Drawing 175-WLM 551-5, Rev E, Compressed Air System a/D Hull Block 940, 950 Coast Guard Drawing 175-WLM 582-01, Rev D, Mooring & Towing A & D Coast Guard Drawing 175-WLM 601-01, Rev N, General Arr, Inboard & Outboard Profiles Coast Guard Drawing 175-WLM 602-01, Rev C, Cutter Visual Id & Draft Marks Coast Guard Drawing 175-WLM 612-01, Rev G, Lifeline, Rails & Stanchions Coast Guard Drawing 175-WLM 622-01, Rev C, Decking Fdn Z-Drive Space Coast Guard Drawing 175-WLM 631-02, Rev E, Painting Schedule Coast Guard Drawing 175-WLM 634-01, Rev G, Deck Covering Schedule Coast Guard Drawing 175-WLM 635-01, Rev F, Hull Thermal & Acoustic Insulation Schedule Coast Guard Drawing 175-WLM 801-15, Rev C, Scantlings, Decks & Platform Coast Guard Drawing 175-WLM 801-16, Rev C, Scantlings, Watertight Bulkheads Coast Guard Drawing 175-WLM 801-19, Rev C, Shell Expansion v (Rev-0)

Coast Guard Drawing 175-WLM 950-01, Rev G, Hull Block 950 Panels Coast Guard Drawing 175-WLM 950-04, Rev G, H.B. 950 Transverse Frames & Bulkheads Coast Guard Drawing 175-WLM-202-201, Rev Q, MPCMS Coast Guard Drawing 225B-WLB 202-1, Rev G, MPCMS Cabling Diagram Coast Guard Drawing 225B-WLB 202-2, Rev D, MPCMS Connection Table Coast Guard Drawing 225-WLB 202-1, Rev F, MPCMS Cabling Diagram Coast Guard Drawing 225-WLB 202-2, Rev G, MPCMS COED

COAST GUARD PUBLICATIONS

CGTO PG-85-00-230-S, August 2013, Planned Maintenance System Development Process Guide Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors

Manual Coast Guard Commandant Instruction (COMDTINST) M16672.2D, Mar 1999, Navigation Rules, International-Inland Coast Guard Technical Publication (TP) 10502 Machinery Plant Control & Monitoring System Operating

Manual (MPCMSOM) Coast Guard Technical Publication (TP) 3505 A & B Machinery Plant Control & Monitoring System

Operating Manual (MPCMSOM) Coast Guard Technical Publication (TP) 3507 MPCMS Computer System Operating Manual (CSOM) Coast Guard Technical Publication (TP) 3508 MPCMS Computer System Diagnostic Manual (CSDM) Coast Guard Technical Publication (TP) 3509 MPCMS Software User's Manual (SUM) Coast Guard Technical Publication (TP) 3585 A& B Machinery Plant Control & Monitoring System

Operating Manual (MPCMSOM) Coast Guard Technical Publication (TP) 3589 MPCMS Computer System Manual Coast Guard Technical Publication (TP) 3605 A & B Machinery Plant Control & Monitoring System

Operating Manual (MPCMSOM) Coast Guard Technical Publication (TP) 3605B, SWBS 86; Section B; Machinery Plant Control &

Monitor System (MPCMS) Z-Drive Direction Indicator System Technical Manual Coast Guard Technical Publication (TP) 3607 MPCMS Computer System Operating Manual (CSOM) Coast Guard Technical Publication (TP) 3608 MPCMS Computer System Diagnostic Manual (CSDM) Coast Guard Technical Publication (TP) 3653, Jul 2013; SWBS 245, Section A; Z-DRIVE - MODEL

1350-H Coast Guard Technical Publication (TP) 3653, Jul 2013; SWBS 245, Section A; Z-drive - Model 1350-H Coast Guard Technical Publication (TP) 3932 MPCMS Data Logging System COMDTINST M9085.1, Rev C, Naval Engineering Computer Aided Design Standards Naval Sea Systems Command (NAVSEA) 0900-LP-060-4010, 1981, Fabrication, Welding & Inspection of Metal Boat & Craft Hulls SFLC Technical Standard 086, June 2013, Technical Publications (TP) Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General

Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and

Allied Processes Surface Forces Logistics Center Standard Specification 0850 (SFLC Std Spec 0850), 2018, General

Requirements for Drawing Preparation vi (Rev-0)

Surface Forces Logistics Center Standard Specification 3041 (SFLC Std Spec 3041), 2018, Shipboard Electrical Cable Test

Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2018, Shipboard Electrical Cable Removal, Relocation, Splice, Repair, and Installation

Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2018, Auxiliary Machine Systems

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, Preserve Ship Structures

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2018, Drydocking Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2018, Temporary

Services Surface Forces Logistics Center Standard Specification 8636 (SFLC Std Spec 8636), 2018, Temporary

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

OTHER REFERENCES

MIL-F-24402, May 1995, Filters (Hydraulic), Filter Elements (High Efficiency), and Filter Differential

Pressure Indicators, General Specification The American Bureau of Shipping (ABS), 2007, Guide for Shipbuilding and Repair Quality Standards

Surface Forces Logistics Center for Hull Structure During Construction (ABS Pub 87) The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2015, Solvent Cleaning vii (Rev-0)

CONSOLIDATED LIST OF GOVERNMENT-FURNISHED PROPERTY

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

WORK

ITEM

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

2 Y Z Drive Alignment

Tool NSN: 5220-01-F16-4720 1 ea. 3600.00

3 Y Starboard Z-drive (CCW rotation)

NSN: 2010-21-920-0919 1 ea. 500,250.00

3 Y Port Z-drive (CW rotation)

NSN: 2010-21-920-0899 1 ea. 500,250.00

3 Y Z Drive Alignment Tool

NSN: 5220-01-F16-4720 1 ea. 3600.00

*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 viii (Rev-0)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

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

Work Item Title

3 Z-Drive Propulsion Unit, Renew (Drydock)

7 Machinery Plant Control and Monitoring System (MPCMS), Groom ix (Rev-0)

PRINCIPAL CHARACTERISTICS - TENDER

175' WLM, BUOY TENDER

PHYSICAL

Length overall 174' 8" Length between perpendiculars 155' 1" Depth 14' 8" Maximum beam 36' 0" Designed draft 8' 0" Mast height (above 8' waterline) 58' 8" Frame spacing 20" Full load displacement 855.15 Long Tons SW Light load displacement 719.78 Long Tons SW Minimum op condition displ 852.19 Long Tons SW

HULL

Hull material Steel

MACHINERY

Main propulsion Two Caterpillar 3508 DITA V-8 diesel; 999 BHP ea @ 1500 RPM

Two Ulstein 360 degree steerable Z-Drives, 403 SRPM @ 1600 ERPM Reduction gears Two Z-Drive units, Cardan shafting; 3.973:1 gear ratio Shaft seal John Crane Type ND Shaft bearings Five pedestal mounted, Cooper split roller bearings Number of propellers 2 Number of blades 4 Diameter 57.1" Rudders None; Z-drive Ship's service generators Three Caterpillar Model 3406 DITA Turbocharged; 285KW, 450V, 60 Hz, 1800

RPM

Emergency diesel generator One Caterpillar Model 3406 DIT 210 KW, 24V, 60 Hz, 1800 RPM

TANK CAPACITIES

Diesel oil capacity (100%) 16,385 gal Fresh water capacity (100%) 7,339 gal Lubricating oil (100%) 86 gal

1 (Rev-0)

00000_0220_FLT

REC_00000_FLT_Commercial Project @ Contractor’ Facility (1212)

General Requirements

1. SCOPE

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

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

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General

Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and

Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, 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 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.

3.5.2 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

3 (Rev-0)

(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 2018 Edition Standard Specifications and supersede published content:

None.

4. NOTES

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

4 (Rev-0)

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

VESSEL NAME HULL # WORK ITEM

WORK ITEM TITLE

LOCATION OF WORK (INCL. FRAME #’S) AREA (SQFT)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

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

CHECKPOINT 2 - PAINT STORAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating 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/NACE INSPECTOR SIGNATURE CERT. # DATE / TIME

5 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

VESSEL NAME HULL # WORK ITEM

# WORK ITEM TITLE

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

6 (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 /

TIME

7 (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).

8 (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)

9 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

VESSEL NAME HULL # WORK ITEM

# WORK ITEM TITLE

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

10 (Rev-0)

24300_JPH_1020_175

WORK ITEM 1: Z-Drive Input Drive Shaft, Bearings Inspect

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to clean, inspect and lubricate the propulsion shaft bearings on the port and starboard z-drive input shaft (5 bearings per shaft).

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 175 WLM 243-001, Rev -, Propulsion Shafting Arrangement Coast Guard Drawing 175 WLM 243-002, Rev F, Propulsion Shafting Arrangement

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 3653, Jul 2013; SWBS 245, Section A; Z-DRIVE -

MODEL 1350-H

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements

OTHER REFERENCES

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep. The Contractor shall provide the services of a Qualified Technical Representative who is familiar with the Ulstein model number 1350-H (now Rolls Royce) Z-drive propulsion unit and Cooper drive shaft support bearings, to accomplish the following on site:

• Advise on manufacturer's proprietary system information.

• Assist with and ensure compliance with manufacturer's procedures and standards during

11 (Rev-0) disassembly, inspection, repair, modification, calibration, and reassembly of the equipment/system.

• Technical Representative shall be present for all disassembly, inspection, and reassembly of the Z-drive system.

3.1.2.1 Ensure the Tech Rep has experience with the system/equipment stated above and demonstrated on their résumé.

3.1.2.2 Submit the name and résumé of the Tech Rep 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 in way of work include, but are not limited to the below-listed:

• Shaft guards (5 per shaft).

3.2 Disassembly precaution. The Contractor shall note that the No. 3 bearing (thrust bearing) is the only fixed bearing and removal or loosening of this bearing will result in a need for realignment. To ensure proper shaft alignment is maintained, place a dial indicator to the flange on the coupling just fwd of the No. 3 bearing.

NOTE

Be aware the Cutter has suffered some hull damage. Contractor shall be alert to any consequential damage or problems that may have occurred to the Cooper bearings as a result.

3.2.1 If the need arises to move the shaft, use the dial indicator to reposition the shaft in the same location as prior to the inspection. Measure and record the distance between the fixed bearing and the aft face of the coupling using an inside micrometer.

3.2.2 If the longitudinal position of the shaft is changed without a dial indicator in place or if the dial indicator is moved and the reference point is lost, re-align the shaft as described in paragraph 3.6.

3.2.3 If the longitudinal position of the shaft is changed without a dial indicator in place or if the dial indicator is moved and the reference point is lost, move the flexible coupling and re-align the shaft, in accordance with TP 3653. Ensure that the bar placed on the flywheel, used to take measurements, is tightened to a torque of 35 ft-lbs. Ensure that the final alignments are as specified in Table 1 below (clarification of dimensions can be found in TP 3653):

TABLE 1 – FINAL ALIGNMENTS

ALIGNMENT TOLERANCE

Axial +/- 0.020” Radial 0.039” +/- 0.039”

12 (Rev-0)

Angular +/- 0.014”

3.3 Removal. The Contractor shall remove all bearing end caps and all bearings from the bearing housings. Provide suitable support for each shaft prior to removal of any bearing.

NOTE

Be sure the dial indicator is in place before removing the thrust bearing.

3.4 Bearings cleaning and inspection. The Contractor shall clean and remove all grease from each bearing. Inspect all visible bearing surfaces for wear, cracks and abnormalities. Ensure No. 1, 2, 4, & 5 bearings are centered in their foundations. Appendix B.3 of TP 3653 has specific information on installed bearings. Submit a CFR.

3.5 Reassembly and reinstallation. The Contractor shall accomplish the following:

3.5.1 Before bearing reassembly, apply 7 oz. of grease on each of the bearings.

CAUTION

Do not over-grease the bearing. Excess grease will result in an excessive high temperature reading. Wipe any excess grease off the inner race retaining rings.

3.5.2 Reassemble and reinstall the bearings back to their original configuration. The inner race retaining ring bolts shall be secured with Loctite 242 or equivalent. Be aware that the ends of the inner race halves are cut at an angle and must be mounted in a particular orientation. Inspect the seam at which the inner races join together and ensure there is not a gap.

3.6 Alignment inspection. The Contractor shall align the entire Z- drive propulsion train in related Work Item “Z-Drive Units, Alignment Check”. The work of this item (any Cooper Bearing Movements) shall be coordinated with that Alignment Item.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.7 Operational Testing. Operational testing of the entire Z-drive propulsion train is to be performed under Work Item, “Z-Drive Propulsion Units, Renew (Drydock)”. Ensure the work of this Work Item is coordinated with that Work Items. Do not include that cost in the bid of this Item.

4. NOTES

This section is not applicable to this work item.

13 (Rev-0)

24500_JPH_0317_175

WORK ITEM 2: Both Z-Drive Propulsion Trains, Alignment

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to inspect both z-drive’s propulsion trains for proper vertical alignment and bearing performance. Bearings and Z-drive Units shall be moved as required to ensure satisfactory alignment exists of the entire Z-drive shafts from MDE to Z-drive Unit.

1.2 Government-furnished property. .

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y Z Drive Alignment Tool NSN: 5220-01-F16-4720 1 ea. 3600.00

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 175 WLM 243-1, Rev -, Propulsion Shaft Arrangement Coast Guard Drawing 175 WLM 243-2, Rev F, Propulsion Shaft Arrangement

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 3653, Jul 2013; SWBS 245, Section A; Z-DRIVE -

MODEL 1350-H

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

14 (Rev-0)

3.1.2 Tech Rep. The Contractor shall provide the services of a qualified Tech Rep, who is familiar with the Ulstein model number 1350-H (now Rolls Royce) Z-drive propulsion unit, to accomplish the following tasks – on site:

• 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 Z-drive system.

3.1.2.1 Ensure that the Tech Rep has a résumé of demonstrated experience with the system/equipment stated above.

3.1.2.2 Submit a copy of the Tech Rep’s résumé and a list of references 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 in way of work include, but are not limited to the below-listed:

• Shaft guards (5 per shaft).

3.2 Hull damage.

3.2.1 The Cutter has suffered some Hull damage and may require structural hull plating repairs. As a result the Z-drive alignment requires validation and corrections if required.

NOTE

Coordinate the work of this alignment specification with other Work Items that may effect the outcome including all Plate Renewal Work Items as well as “Z-Drive Input Drive Shaft, Bearings Inspect” and “Z-Drive Propulsion Units, Renew (Drydock)”.

3.3 Background Information.

3.3.1 The z-drive drive shaft contains 5 cooper bearings. #1 bearing is designated as closest to MDE. The MDE is connected via flexible coupling. #3 bearing is a fixed (thrust bearing). The remaining 4 bearings are floating bearings. #5 bearing is closest to z-drive. The drive shaft is connected to the z-drive via a cardan shaft.

3.3.2 This shall be considered performance specification (Government is not stating exactly how to do work, only the end result is stated). Contractor is expected to achieve final result of a z-drive propulsion train alignment. The sequence and timing of events shall be directed by Alignment Contractor.

15 (Rev-0)

3.2.3 For purpose of this specification, the alignment of Z-drive propulsion train is considered to be comprised of three parts. Total alignment (not performed since new construction) requires all 3 parts be performed simultaneously to achieve optimal alignment.

3.2.3.1 The three parts are considered to be:

• Part A -The MDE to drive shaft connection (via Vulkan coupling)

• Part B -The drive shaft supported on 5 cooper bearings.

• Part C -The drive shaft to z-drive input (via cardan shaft)

3.2.3.2 From past history and drawing reviews the following conditions exist (until proven otherwise):

• The MDEs are not vertically shimmed to aide in alignment. They are moved just horizontally to satisfy coupling alignment. For vertical alignment movements required then the cooper bearing #1 would move.

• The Z-drive units are not capable of vertical movement and only limited horizontal movement. Horizontal movement is only to very limited degree possible via flange bolting to sea chest and via subassembly makeup/bolting (e.g. lower assembly to intermediate,

3.3 Main Diesel Engine (MDE) alignment check (Part A). The Contractor shall accomplish the following MDE alignment tasks:

3.3.1 The MDEs are Caterpillar 3508 Diesel.

3.3.2 Contractor shall disconnect the Vulkan coupling so that the alignment readings are pure flange to flange unbiased.

3.3.3 Measure with laser alignment tools the existing state of alignment of MDE to z-drive shafting

3.3.4 Consideration of thermal rise of MDE shall be considered. Rough calculations indicate an approximate 0.010” output flange rise in a hot operating engine as compared to cold ambient engine.

3.3.4.1 If the engines have pre-heaters they may be able to be turned on (Coast Guard Cutter’s sole decision and action) and the engine brought up to temperature. This will allow actual thermal expansion of the engine to take place (and nullify need to factor in a theoretical rise).

3.3.5 If alignment is found to be out of tolerance, present a plan for approval to restore alignment (most likely of movement of Cooper bearing nearest MDE (#1).

3.4 Five Cooper bearing alignment checks (Part B). Coordinate this Work with related Work item “Z- Drive Input Drive Shaft, Bearings Inspect “. Contractor shall accomplish the following Cooper bearing alignment tasks:

NOTE

Using a load cell to measure bearing loads represents government’s minimum needs. Strain gauge alignment in lieu of load cell is also permissible.

3.4.1 Shaft shall remain installed for this work.

3.4.2 Vertical Loads

16 (Rev-0)

3.4.2.1 Determine the vertical loads currently being carried on the 5 drive shaft bearings using a load cell.

3.4.2.2 Present a plan for approval to distribute positive loads between the five (5) bearings. Plan should ensure that the bearing closest to Main diesel Engine stays properly loaded during any thermal rise associated with engine warm-up.

NOTE

Vertical movement of bearings either by shims or by re-pouring of chockfast shall be considered contract growth, and subject to a negotiated contract change. However required movement of bearings effected by loosening then tightening pedestal bolts shall be considered within the scope of this work item.

3.4.2.3 Upon approval shim the bearings per plan, and re-measure loads using load cell. Continue shimming until loads are satisfactorily achieved.

3.4.3 Horizontal Loads

3.4.3.1 Move bearings onto chosen LOS to eliminate horizontal (side loads).

3.4.4 Thrust bearing adjustment.

3.4.4.1 The number 3 bearing is a fixed (aka thrust bearing) whose axial position is critical. The other 4 bearings are floating bearings.

3.4.4.2 Devise a plan to determine if the thrust bearing is in correct axial position. Obtain USCG concurrence to plan and then execute.

3.4 Cardan shaft Alignment (Part C). Coordinate this Work with related Work item “Z-Drive Input Drive Shaft, Bearings Inspect “. Contractor shall accomplish the following cardan shaft alignment tasks:

3.4.1 The cardan shaft shall be aligned using laser alignment equipment and techniques. Special alignment pointers will be used in addition as second check, these pointers are provided GFE.

3.4.2 The new Z-drives are being manipulated and bolted down in related Work Item “Z-Drive Propulsion Units, Renew (Drydock) in a position to be dictated by the alignment work item. Potential movement of Bearing #5 may also be required to obtain satisfactory cardan shaft alignment.

3.5 Final report. Submit final report to USCG with initial alignment readings, final alignment results, actions taken, recommendations for future similar jobs, difficulties, and any other notable findings.

This item is not applicable to this work item.

17 (Rev-0)

24505_JPH_0120_175

WORK ITEM 3: Z-Drive Propulsion Unit, Renew (Drydock)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew both the port and starboard Z-drive propulsion units, while the vessel is in drydock.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y Starboard Z-drive (CCW rotation) NSN: 2010-21-920-0919 1 ea. 500,250.00

Y Port Z-drive (CW rotation) NSN: 2010-21-920-0899 1 ea. 500,250.00 Y Z Drive Alignment Tool NSN: 5220-01-F16-4720 1 ea. 3600.00

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 175 WLM 245-001, Rev A, Propeller Coast Guard Drawing 175 WLM 245-002, Rev A, Z-drive Propeller Details, Modified Design Coast Guard Drawing 175-WLM 551-5, Rev E, Compressed Air System a/D Hull Block 940, 950 Coast Guard Drawing 175 WLM 561-001, Rev J, Z-drive Hydraulic System Diagram Coast Guard Drawing 175 WLM 635-001, Rev F, Hull Thermal and Acoustic Insulation

Schedule

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 3653, Jul 2013; SWBS 245, Section A; Z-drive - Model

1350-H Coast Guard Technical Publication (TP) 3605B, SWBS 86; Section B; Machinery Plant Control

& Monitor System (MPCMS) Z-Drive Direction Indicator System Technical Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2018, Auxiliary Machine Systems

18 (Rev-0)

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 8636 (SFLC Std Spec 8636), 2018, Temporary Hull Accesses

OTHER REFERENCES

MIL-F-24402, May 1995, Filters (Hydraulic), Filter Elements (High Efficiency), and Filter

Differential Pressure Indicators, General Specification The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2015, Solvent Cleaning

3. REQUIREMENTS

3.1 General.

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

• 3.7.3 Post-surface preparation cleaning and inspection

3.1.2 Tech Rep. The government will provide the services of a qualified Tech Rep, who is familiar with the Ulstein model number 1350-H (now Rolls Royce) Z-drive propulsion unit, to accomplish the following tasks – on site:

• 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 Z-drive system.

3.1.2.1 Ensure that the Tech Rep has a résumé of demonstrated experience with the system/equipment stated above.

3.1.2.2 Submit a copy of the Tech Rep’s résumé and a list of references 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.

3.1.3.1 Hydraulic system(s). Maintain existing hydraulic system cleanliness and take all necessary precautions to prevent the introduction of contaminants into the hydraulic system. Immediately after disconnecting or removing components from the hydraulic system, seal all openings to the rest of the system using caps for externally threaded connection points, bolt-on blanks, or taped-on discs/covers made of durable plastic or sheet-metal that is no less than 1/16-inch thick.

19 (Rev-0)

NOTE

Be aware that plastic bags may be used only when arrangement or configuration prevents the use of the other sealing methods specified above.

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

• Insulation and/or lagging

• Hydraulic piping and hoses

• ASW piping

• Pneumatic piping

• Lighting wiring and fixtures

• Control panels

• Electrical boxes.

• Portable railing bolted to the grating surrounding the Z-drive.

• Shaft guards/covers

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.2 Operational test, initial. Prior to commencement of work, the Contractor shall witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition. Submit a CFR.

3.2.1 The existing Z-drive itself since being renewed (and possibly damaged/leaking) shall not be operationally tested.

3.3 Patch removal. The Contractor shall cut the access opening required on the 01 Level (23’-0” above baseline). The outline of this access opening is visible on the deck from previous installations. Follow the outline, cut deck plate and lift off of the Cutter. Perform all work required to open and close the access openings in accordance with SFLC Std Spec 8636.

3.3.1 When the access opening is not being utilized for rigging, it shall be kept covered by temporary plywood sheets and a tarp for safety and to limit exposure of internal compartments from the elements.

3.3.2 Boundary test. The Contractor shall verify the integrity of all boundaries affected by this work item using one of the methods described in Std Spec 0740, Appendix C. Submit a CFR.

3.4 System draining. The Contractor shall drain the lubrication, steering, and seal oils from both the Z-drive propulsion units in accordance with TP- 3653 and Coast Guard Drawing 175 WLM 245-001.

Dispose all drain fluids in accordance with applicable Federal, state, and local environmental regulations.

3.4.1 The quantities of existing system oil (for each Z-Drive unit) to be drained and disposed of are:

• Lube and Seal Oil - 120 gallons.

• Steering Oil - 92 gallons.

20 (Rev-0)

3.4.2 Once the systems have been drained, open all system tanks and clean to dry bare metal removing all condensation residue using new low-lint cleaning cloths conforming to CID A-A-59323, Type II.

3.5 Both Z-drive propulsion units renewal. The Contractor shall receipt inspect the new GFP Z-drives.

3.5.1 Furnish all crane service and riggers required to initially receive the new Z-drives and then later load removed Z-drives onto Government provided transportation. Z-drive will arrive in a horizontal position in a shipping stand. The same shipping stand will be re-used to return removed Z-drive. See photograph at end of specification.

3.5.2 Inspect the new GFP units for lockwire. If missing, install required lockwire per Technical Representative’s guidance. CG Tech Pub 3653 as well as comparison to existing Z-drive (when removed) shall be referenced for lockwire configuration.

3.5.3 Inspect the new GFP unit’s clutch for rust, water, or shipping damage. Technical Representative shall assist in the inspection.

3.5.4 Stand the new unit upright and stabilize the cort nozzle with straps and come alongs so that it does not rotate during rigging. See Figure at end of specification, for recommended rigging.

3.5.5 Turn the nozzle so that it is turning dead astern. To ensure nozzle is exactly at 180o, use two plumb bobs and measure each side of the nozzle. Adjust nozzle until both readings are equal. Remove the inspection cover where the lube oil dip stick is located and punch mark the turning gear and the housing.

NOTE

The punch marks are to give the Cutter a reference point in case of a mechanical failure of the feedback boxes.

3.6 Remove both units. The Contractor shall disconnect all ship service connections (electrical, pneumatic, lubrication, etc.) that will prohibit or impede vertical unshipping of the Z-drive. Tag all wires and removed hardware to ensure correct reassembly. Cap or seal all broken piping connections.

3.6.1 Remove the Cardan shaft from the Z-drive’s clutch in accordance with the instructions of CG Tech Pub 3653. Rig the Cardan shaft away from the Z-drive to allow for Z-drive vertical removal.

3.6.2 Install alignment pointers and document existing state of alignment.

3.6.2.1 Contractor shall perform run-outs on the provided GFE alignment pointers to ensure straightness.

NOTE

This is necessary to understand any difficulties in obtaining satisfactory alignment of new Z-drives. In the past the new Z-drives would not align with existing drive shaft, and expensive drive shaft realignment was undertaken.