Welin Lambie In-Place Overhaul Davit Spec.doc

USCGC (WMEC 210 & 270 CLASSES)

SPECIFICATION FOR WELIN LAMBIE DUAL POINT DAVIT MODEL TW PIV 5.0B

FY2021

Developed By: Julius K Toida (Rev-0, 22 March 2021)

TABLE OF CONTENTS

iii

Revisions Record iv

Consolidated List of References v

Consolidated List of Government-furnished Property vi

Consolidated List of Critical Inspection Items vii

Principal Characteristics

General Requirements

WORK ITEM 1: Welin-Lambie Model TW.PIV 5.0B Dual Point Davit, Inspect, Test and Overhaul

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.

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.

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

None

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual Coast Guard Technical Publication (TP) 3943, Feb 2019, Twin Pivot Arm Davit - Type Tw.Piv 5.0B - Ref. No. 5558-1 Thru 5558-15 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 2351 (SFLC Std Spec 2351), 2018, Overhaul DC Generators & Motors Surface Forces Logistics Center Standard Specification 3020 (SFLC Std Spec 3020), 2018, Overhaul AC Electrical Motors 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, Requirements for Preservation of Ship Structures

OTHER REFERENCES

ASME BPV Code Section VIII, Division 1 & 2, Rules for the Construction of Pressure Vessels ASTM International (ASTM) D3951, R2018, Standard Practice for Commercial Packaging 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.

($/Unit)

*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

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 3.2.6.1.4 (Inspection report particulars)):

This section is not applicable to this package.

Principal Characteristics 210' WMEC (A-Class)

Physical

Draft, full load to baseline amidships *Baseline is 9” below keel amidships 12' 0"

Highest projection above baseline *VHF-FM ADF antenna 90' 0"

Machinery

5,000 BHP total

250 KW each @ 0.8 power factor, 440VAC, 3 phase, 60 cycle

180 KW @ 0.8 power factor, 440VAC, 3 phase 60 cycle

7 shots of chain each

Tank Capacities

00000_0220_FLT

REC_00000_FLT_Commercial Project @ CG Facility (1212) General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting vessel repairs performed by commercial contractors at a Coast Guard 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.

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 USCG facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix B, Requirements for Environmental Protection at USCG Facilities, during the performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.1.1 USCG Generator status. The activity Generator Status for the Coast Guard Facility shall be provided at time of award.

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

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

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

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

3.5.2 Test and procedures. The Contractor shall be required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work shall be done by qualified laboratories; and where required by law, the laboratories shall be certified.

3.5.3 Regulatory notifications. The Contractor shall be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The Contractor shall submit copies of all regulatory notifications to the Contracting Officer and the local Facility Engineer or Engineering Officer prior to commencement of work activities. Regulatory notifications shall be provided for including but not limited to demolition, renovation, National Pollutant Discharge Elimination System (NPDES) defined site work, and remediation of controlled substances such as asbestos, hazardous waste, and lead paint.

3.5.4 Environmental manager. The Contractor shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall ensure compliance with Hazardous Waste Program requirements, including hazardous waste handling, storage, manifesting, and disposal; implement the Contractors’ Environmental Management Plan; ensure that all environmental permits are obtained, maintained, and closed out; ensure compliance with Storm Water Program Management requirements; ensure compliance with Hazardous Materials including storage, handling, and reporting requirements; as well as coordinate any remediation of regulated substances such as lead, asbestos, and polychlorinated biphenyl (PCB). This may be a collateral position; however the individual must be trained to accomplish the following duties; ensure waste segregation and storage compatibility requirements are met; inspect and manage Satellite Accumulation areas; ensure only authorized personnel add wastes to containers; ensure all Contractor personnel are trained in 40 CFR requirements and individual position requirements; coordinate removal of waste containers; and maintain the Environmental Records binder and required documentation, including environmental permits compliance and close-out.

3.5.5 HW disposal. Contractor shall comply with SFLC Std Spec 0000 Appendix B, Requirements For Environmental Protection At USCG Facilities for HW disposal, and ensure that waste removals are conducted during normal business hours (0800-1600) on Monday through Friday (excluding holidays).

3.5.6 Additional Requirements. The Contractor shall be aware of the following:

3.5.6.1 No Contractor or Subcontractor shall have the authority to sign a Hazardous Waste Manifest using the Coast Guard facility’s EPA Generator ID Number or remove contract generated hazardous waste from the Coast Guard facility without COR or KO-approval.

3.5.6.2 Local environmental regulations at the Government facilities may be more stringent. As with all environmental regulations, the Contractor shall prepare for and comply with local and state regulations.

3.5.6.3 Coast Guard facilities do not maintain Facilities Response Plans (FRPs) per 33 CFR 154. Contractor shall furnish the FRP when required for over-the-water liquids transfers to and from vessels, and is required for oil/fuel transfers to/from vessels for 250 barrels (10,500 gallons) or more.

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.

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

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.

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

| DP - Surface |

QA-3a - QUALITY ASSURANCE INSPECTION FORM

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

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

Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here

Reading (mils):

Reading (mils):

Reading (mils):

Place Surface Profile

Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here

Reading (mils):

Reading (mils):

Reading (mils):

Place Surface Profile

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:

QA-3b - QUALITY ASSURANCE INSPECTION FORM

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

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).

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC-GUIDE 15.

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Dry Film Thickness (DFT) Measurements IAW SSPC-PA 2.

*BASE METAL READING (BMR) Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.

Location (Frame Reference):

Avg.

Location (Frame Reference):

Avg.

Location (Frame Reference):

Avg.

58300_1020_210_270 WORK ITEM 1: Welin-Lambie Model TW.PIV 5.0B Dual Point Davit, Inspect, Test and Overhaul

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to inspect, test, and overhaul a Welin-Lambie TW.PIV 5.0B Dual Point Davit.

1.2 Government-furnished property.

($/UNIT)

NSN: 3950-01-F18-5354

2. REFERENCES

Coast Guard Drawings None.

Coast Guard Publications Coast Guard Technical Publication (TP) 3943, Feb 2019, Twin Pivot Arm Davit - Type Tw.Piv 5.0B - Ref. No. 5558-1 Thru 5558-15 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 2351 (SFLC Std Spec 2351), 2018, Overhaul DC Generators & Motors Surface Forces Logistics Center Standard Specification 3020 (SFLC Std Spec 3020), 2018, Overhaul AC Electrical Motors 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, Requirements for Preservation of Ship Structures Other References ASME BPV Code Section VIII, Division 1 & 2, Rules for the Construction of Pressure Vessels ASTM International (ASTM) D3951, R2018, Standard Practice for Commercial Packaging British Standard (BS) BS EN 837-1, 03/1998, Pressure Gauges Part 1: Bourdon Tube Pressure Gauges – Dimensions, Metrology, Requirements and Testing FED-STD-595C, 16 Jan 2008, Colors Used in Government Procurement The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 7/NACE No.4, 2007, Brush-Off Blast Cleaning

3. REQUIREMENTS

3.1 General. The Contractor shall accomplish all work herein in accordance with SFLC Std Spec 5000 and TP 3943. The Contractor shall provide all services required to accomplish the work herein on the Welin-Lambie TW.PIV 5.0B Dual Point Davit system.

3.1.1 CIR.

None.

3.1.2 Tech Rep. The Coast Guard (SFLC MECPL) will provide the services of a qualified Tech Rep, who is certified/authorized by Welin-Lambie on Model TW.PIV 5.0B davit, to accomplish the following tasks – on site:

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

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

3.1.2.1 The Tech Rep’s name will be provided to the Contractor at the Arrival Conference.

3.1.3 Protective measures, general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces 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 Protective measures, 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.

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).

3.1.5 Structural fasteners. The Contractor shall renew all structural fasteners with 300-series stainless steel fasteners.

3.1.6 Receipt report. Upon receipt of the government furnished overhaul kit and parts identified from Welin Lambie Pre-Inspection Report, the Contractor shall inspect and inventory the government furnished overhaul kit and parts identified from Welin Lambie Pre-Inspection Report and submit a CFR on the following:

· Missing or damaged parts/components with photographs of each.

3.2 Clean and visually inspect. The Contractor shall clean and visually inspect the following and submit a CFR:

· Davit assembly.

· Sheaves.

· Boat block assembly.

· Hydraulic reservoir(s).

· Exterior electrical cables, wiring, and conduit.

· All machinery foundation welds.

· Davit frame.

· Winches.

· Forward davit arm.

· Aft davit arm.

3.3 Overhaul. As applicable, the Contractor shall inspect, overhaul, and preserve the following components/assemblies and sub-components/assemblies:

3.3.1 Mechanical.

3.3.1.1 Structural and rigging gear, including:

· Cranston hook assemblies.

· Sheave assemblies.

· Fwd davit arm hinge pin assembly.

· Aft davit arm hinge pin assembly.

3.3.2 Renewals.

3.3.2.1 The Contractor shall renew all components determined by the Tech Rep assessment to require replacement.

3.3.2.1.1 Government’s right for change out. The Government reserves the right to furnish new components required to be renewed, for installation in place of the existing. If the Government exercises this right, the Contractor shall return the removed components to the Coast Guard PA as an MTI item.

3.3.3 Updates and upgrades. The Contractor shall update and/or upgrade the following, as required:

3.3.3.1 Component upgrades.

· Based on Pre-Inspection report provided by Welin Lambie.

· Others as directed by Welin Lambie that can be completed by the contractor.

3.3.3 Pressure gauge calibration. The Contractor shall ensure all pressure gauges are in accordance with BS EN 837-1 and be calibrated and certified. Affix calibration labels to the faces of all gauges noting the calibration facility name and date tested.

3.4 NDE. The Contractor shall perform NDE of the following in accordance with SFLC Std Spec 0740, Appendix C. Submit a CFR.

· Foundation attachment welds.

· Forward davit arm.

· Aft davit arm.

3.5 Surface preservation. The Contractor shall preserve the davit, using SFLC Std Spec 6310, FED-STD-595C and SSPC-SP-7 as guidance, as follows:

3.5.1 Ferrous components – 100% preservation. The Contractor shall prepare and preserve in accordance with SFLC Std. Spec 6310 Appendix A5 Machinery, Deck, Option 1, with the following exception; contractor shall substitute Dimetcote 302 H zinc rich primer with Sigma Zinc 109 HS zinc rich primer, Color 10371 (Spar).

3.5.2 Ferrous components – partial preservation. The Contractor shall prepare and preserve in accordance with paint manufacturers data sheets with the following exception; contractor shall substitute Dimetcote 302 H zinc rich primer with Sigma Zinc 109 HS zinc rich primer. Color 10371(Spar).

3.5.3 Non-ferrous components. Contractor shall prepare and preserve in accordance with SFLC Std Spec 6310 Appendix A5 Machinery, Deck, Option 1, with the following exception; contractor shall substitute Intergard 269 primer with Sigma Cover 280 primer. Color 10371 (Spar).

3.6 Lubricate. The Contractor shall lubricate the Welin-Lambie davit system in accordance with TP 3943.

3.7 Test requirements - Post Overhaul.

3.7.1 Test plan. The Contractor shall submit a test plan to the KO for approval, to include the tests prescribed herein, prior to commencement of testing.

3.7.2 Test notification. The Contractor shall give Coast Guard personnel 7 days notice prior to testing.

3.7.3 Post overhaul tests. After completion of work and in the presence of Coast Guard personnel and a qualified Tech Rep, who is certified/authorized by Welin-Lambie on Model TW.PIV 5.0B davit, the Contractor shall conduct the following operational tests of the davit system, on a level plane to prove satisfactory operating condition in accordance with SFLC Std Spec 5000 and as specified herein. Submit a CFR summarizing all test results.

3.7.3.1 No load operational test. Conduct an operational test of the davit using no load over the entire range of motion in accordance with SFLC Std Spec 5000, paragraph B2.7.2.1.

3.7.3.2 Winch Brake/Modified static load test. Conduct a static brake test using 16,500 lbs plus or minus 25 lbs test load (150% of the Safe Working Load (SWL) of 11,000 lbs) in accordance with SFLC Std Spec 5000, paragraph B2.7.2.3. Conduct test with a 50-50 weight distribution.

3.7.3.3 Dynamic load test. Conduct a dynamic load test using 13,750 lbs plus or minus 25 lbs test load (125% of the Safe Working Load (SWL) of 11,000 lbs) in accordance with SFLC Std Spec 5000, paragraph B2.7.2.4 in both the normal power mode and the hydraulically-stored energy mode (emergency operation). Conduct test with a 50-50 weight distribution for each operation mode.

3.7.3.3.1 Luffing speed test at 125% SWL. Record luffing speeds from the fully-retracted to the fully-extended positions and then from the fully-extended to fully-retracted positions at 125% SWL (13,750 plus or minus 25 lbs).

NOTE

Luffing speed tests in normal operation mode shall meet a 30 to 33 second luff-in and 41 to 43 second luff-out time.

NOTE

Luffing speed tests in emergency operation mode shall meet a 24 to 28 second luff-in and 24 to 28 second luff-out time.

3.7.3.3.2 Dynamic test (at SWL) data recording. During the SWL dynamic test, record the following:

3.7.3.3.2.1 Main winch running speed test – gravity lower, measure and record the main winch speed

NOTE

The minimum speed shall be 73.3 RPM rope drum speed.

3.7.3.3.2.2 Main winch hoist test – demonstrate variable speed, measure and record fast and slow hoist under power.

NOTE

The minimum fast speed and low hoist speeds shall be 55 RPM and 19.5 RPM rope drum speed, respectively.

3.7.3.3.2.3 Main winch lower test – demonstrate variable speed, measure and record fast and slow lowering under power.

NOTE

The minimum fast speed and low lowering speeds shall be 56.2 RPM and 20.7 RPM rope drum speed, respectively.

3.7.3.4 Emergency hand hoisting at 110% SWL (12,100 lbs). The hand hoist shall be operated satisfactorily at 110% SWL (12,100 lbs).

3.7.3.5 Safety and emergency feature testing. Operate the davit and test all emergency stop(s), limit switch activation, brake turning handle, and emergency luffing mode (using accumulators).

3.7.4 Test certification. The Contractor shall provide a test certification, identified by davit serial number and date of completion, upon successful completion of all testing.

3.8 Label plate. The Contractor shall install a label plate(s) to document satisfactory test completion in accordance with SFLC Std Spec 5000, Appendix B, Paragraph B2.9 (Label Plates).

3.9 Touch-up preservation. The Contractor shall prepare and coat all new and disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, paragraph 3.1.13 (Touch-ups and minor coating repairs.)

4. NOTES

4.1 Davit information:

· National Stock Number (NSN): 2030-99-454-8999

· Item name: Dual Point Davit

· Part Number (PN): TW.PIV 5.0B

· Original Equipment Manufacturer (OEM): Welin Lambie LTD

4.2 Partial List of Contractor-furnished property. The following is a list of parts/components the Coast Guard requires to be renewed, but may not be all-inclusive of parts that may need to be renewed. Additional parts recommended by the Contractor for renewal shall be done via CFR.

Boat Block Assembly Drawing 5650-5601

Davit Assembly Drawing 5631-4601

Winch Gearbox Assembly Drawing 5508-7002

Falls Tension Winch Assembly Drawing 5503-3902

Control Station Assembly Drawing 5694-4701

Hydraulic Assembly Drawing 5631-4602

Hydraulic Reservoir Assembly Drawing 5735-1001

Hydraulic Panel Assembly Drawing 5733-1301

Misc.