0941_A_FW_Stern_Tube_Lubrication_System_Installation_T-ALT_403__Rev_1.doc

USNS ROBERT PEARY

(T-AKE 5)

DOCKING AND UNDOCKING

N32205-18-R-4250

24 August 2016

ITEM NO. 941

Category "A"

N756/SA/EO

FRESHWATER (CLOSED LOOP) STERN TUBE LUBRICATION SYSTEM T-ALT 403

1.0 ABSTRACT:

1.1 This item describes the requirements for Shipyard to install a Freshwater (Closed Loop) Stern Tube Lubrication System designed by WARTSILA Defense.

2.0 REFERENCES/ENCLOSURES:

2.1 References:

2.1.1 MSC Drawing 530-8498002– Fresh Water (Closed Loop).

2.1.2 WARTSILA Drawing H79807-01 REV 11 – Water Circulation Package (Closed Loop).

2.1.3 WARTSILA Drawing H79352-01 REV C – GA 744 TYPE A8 SEAL.

2.1.4 WARTSILA Drawing H74985-02 REV 2 – GA of 750 MOD 712 TYPE MD SEAL.

2.1.5 WARTSILA Drawing US30305-01 Rev 2 – Proposal Stern Tube Modification for 744 Type A8 Seal.

2.1.6 Manchester Head Tank Dwg 302516 (Modified).

2.1.7 Point Eight Power Drawing 2888.

2.1.8 MSC Dwg 320-386993, Electrical System One Line Diagram.

2.1.9 MSC Dwg 531-8386991, Distilled Water Transfer System Diagram.

2.1.10 NASSCO Dwg 471-351-4982, Stern Tube Installation and Chocking (Welding Sequence Schedule).

2.1.11 Closed Loop System Installation Manual

2.2 Enclosure:

2.2.1 Enclosure 1 - Simplified N7 Fresh Water Closed Loop System.

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location/Quantity:

3.1.1 Location:

-Head Tank – Cargo Hold 5 (2-75-0).

-Motor/Pump, Strainer Bedplate – Shaft Alley (5-79-0).

-Heat Exchanger – Shaft Alley (5-79-0).

3.1.2 Quantity: 1ea, Freshwater (Closed Loop) Stern Tube Lubrication System.

3.2 Item Description/Manufacturer’s Data: Water Circulation Package, Closed Loop. MFG: WARTSILA UK LTD.

3.2.1 Bill of Materials (Contractor Furnished):

a. Wartsila Parts Kit: WDI002115-001 - QTY 1 Kit

Note: This parts kit contains all the electrical closed loop components in the bill of materials listed on reference 2.1.1 sheet 1/2. Items 1-67,

b. Wartsila Parts Kit: WDI002115-002 –QTY 1 Kit

Note: This parts kit contains the following parts listed in the bill of materials on reference 2.1.1 sheet 18: V-1 through V-9 and F1 through 61.

c. Provide Items 1 through 12 listed in the bill of materials on reference 2.1.1 sheet 2.

d. Provide Items P2 through P6 listed in the bill of materials on reference 2.1.1 sheet 18.

e. Provide labels on sheet 6 of ref. 2.1.1

f. Provide cable tags on sheet 17 of ref 2.1.1

3.2.2 In addition to reference 2.1.1, installation shall include all miscellaneous material (structural foundations, piping, pipe collars, hangers, studs, fasteners, angle iron, cable ties, rubber grommets, etc.).

3.2.3 Provide material in reference 2.1.1 with all ABS Heat Trace markings and serializations. Material recommendations identified in reference 2.1.5 shall be either AH36/DH36. Refer to paragraph 7.1.3 for dimensional and bolt circle requirements.

3.2.4 Provide a fabricated fitting identified in paragraph 7.3.2 Figure 3 for FW supply to Aft Seal. Material shall be SS316.

4.0 GOVERNMENT-FURNISHED EQUIPMENT/MATERIAL/SERVICES:

4.1 Government Furnished Equipment (GFE):

None.

4.2 Government Furnished Material (GFM):

4.2.1 Pipe, 2 inch CuNi 90-10 MIL-T-16420 QTY: 40 ft

5.0 NOTES:

5.1 The contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors regardless of tier must comply with the requirements of all applicable GTRs.

5.2 The contractor and all subcontractors regardless of tier are advised to review the other work items under this contract to determine their effect on the work required under this work item.

5.3 THIS SHIP CONTAINS HIGH VOLTAGE (HV) ELECTRICAL SYSTEMS. THE CONTRACTOR AND SUBCONTRACTORS SHALL OBEY ALL POSTED AND VERBAL INSTRUCTIONS REGARDING SAFETY AND EXCLUSION FROM HIGH VOLTAGE AREAS. AT NO TIME SHALL A CONTRACTOR OR SUBCONTRACTOR APPROACH, WORK ON, OR ENTER A HIGH VOLTAGE AREA WITHOUT PROPER AUTHORIZATION.

5.4 THE T-AKE CLASS ELECTRICAL COLOR CODING DOES NOT FOLLOW CONSISTENT COLOR SCHEME. THE SHIP IS KNOWN TO HAVE CURRENT CARRYING CONDUCTORS COLORED GREEN, BLUE, BLACK, AND WHITE. ASSUME ALL ELECTRICAL CABLES ARE ENERGIZED UNTIL TESTED AND PROVEN OTHERWISE. TEST ALL ELECTICAL CABLES TO ENSURE THEY ARE DE-ENERGIZED PRIOR TO WORKING ON THE ITEM.

5.5 Provide all labor and material required to accomplish this work item including but not limited to rigging, staging, space contamination containment, removal and reinstallation of all interferences including insulation in way of repairs or modifications to complete this Work Item.

5.6 All welding shall be in accordance with ABS requirements for building and classing steel ships. Welding Sequence requirements are outlined in reference 2.1.10.

5.7 Gas free and certify safe for Hot work the following spaces; Shaft Alley (5-79-0), Propulsion Motor Room (5-75-0), Cargo Hold 5 (2-75-0), Passage between Cargo Potable Water Tanks (3-80.5-2/3-79-2) and Distilled Water Tank (3-79-0).

5.8 Vacuum tests shall be accomplished on all watertight penetrations and witnessed by ABS, Chief Engineer, and the MSC Rep.

5.9 All interferences and reinstallations are the responsibility of the Contractor.

6.0 QUALITY ASSURANCE REQUIREMENTS: None Additional.

6.1 WARTSILA is the OEM and designer and shall be on station during installation.

6.2 Accomplish all work in accordance with American Bureau of Shipping (ABS) Regulatory Body rules and regulations.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Arrangements and Outfitting:

7.1.1 Tag-Out all required systems and equipment. Drain and dispose of any liquids in accordance with all federal, state, and local regulations.

a. Remove interference such as handrails, ladders, deck grating etc as required.

b. Gas free and certify safe for Hot work the following spaces; Shaft Alley (5-79-0), Propulsion Motor Room (5-75-0), Cargo Hold 5 (2-75-0), Passage between Cargo Potable Water Tanks (3-80.5-2/3-79-2) and Distilled Water Tank (3-79-0) on 3rd Deck.

7.1.2 Provide the services Original Equipment Manufacturer (OEM) Representative WARTSILA Defense Inc. to oversee the installation of the Freshwater Closed Loop System, Stern Tube and Aft Stern Tube Seal installation identified in the paragraphs below.

7.1.3 Provide in place Machining of the Stern Tube Face for new Aft Seal mounting.

a. Drill / tap the Aft Seal Foundation Plate using template provided by WARTSILA Defense. Bolt holes shall be drilled and tapped for 16-M24x3 fasteners.

b. Drill / tap propeller hub using template provided by WARTSILA Defense. Bolt holes shall be drilled / tapped for 16-M24x3 fasteners.

7.1.4 Provide the services of GE Energy to electrically connect all flow meters, pressure gauges, temperature transducers, Tank Level indicator, Pump and Motor indication to the appropriate DAU and update all MIMIC Screen software.

7.1.5 All structural foundations, ladders, bedplates, Pipe Hangers/supports, identified herein as well as in reference 2.1.1. shall be manufactured/provided by the Contractor.

7.1.6 The existing 6” Strainers, reducing station, gauge board, and drain pan from SW Firemain currently mounted in Shaft Alley portside shall remain. The System will remain as an emergency SW lubrication system if upon failure of the NEW Freshwater Closed Loop System should fail.

7.1.7 Notify MSCREP prior to removal of Vidmar cabinets located adjacent to Pyrotechnics Storeroom (2-77-0). VIDMAR’s will be removed permanently for New Head Tank, per reference 2.1.1 detail “Plan 59-B”. Studs shall be ground flush with adjacent deck. Prime and paint to match surrounding areas with Ships Force provided paint.

7.2 Structural:

7.2.1 Head Tank installation:

a. The pre-fabricated Head Tank shall be placed on foundation and permanently located on 2nd Deck, Cargo Hold 5 starboard side, adjacent to Pyrotechnics Storeroom (2-77-0) in according with reference 2.1.1. MSCREP and Wartsila Rep will determine exact location.

b. Ladder and deck shall be located adjacent to head tank as per reference 2.1.1.

c. Head Tank dimensions are 36” Diameter X 86” Tall as per reference 2.1.6.

d. Prep, prime and Touch-up painted surfaces to match surrounding.

7.2.2 Motor/Pump and Strainer Bedplate Foundation:

a. Fabricate motor/pump bedplate foundation in accordance with reference 2.1.1.

b. Prepare existing deck grating and structural longitudinal(s) for installation of newly fabricated foundation.

c. Installation shall be oriented as identified in enclosure 1 “Simplified N7 Closed Loop”. From Port to Stbd side, Pump/Mtr and Strainer bedplate to Heat Exchanger to/from to Aft seal.

d. Motor/pump bedplate with strainer shall be hard mounted to NEW foundation and secured with fasteners.

e. Foundation shall support motor/pump bedplate and additional for maintenance of units. The bedplate shall be mounted in a way that does not interfere with normal maintenance of the motor/pump, strainer, and valves.

f. Reconfigure deck grating around motor/pump assembly and heat exchanger as well as install handrails for safety once motor/pump bedplate are installed and mounted.

g. Fabricate and install drain pan under NEW motor/pump and strainer bedplate and new heat exchanger. Drain pan shall be mounted providing adequate space between motor/pump bedplate to maintain drain cleanliness. Drain shall be tied into the existing drain line to the shaft alley bilge, upstream of SW-V-219.

Note: Drain pan from existing 6” strainers in shaft alley (5-79-0) ties into bilge drain upstream of SW-V-219.

7.2.3 Heat Exchanger Installation:

a. Fabricate heat exchanger foundation in accordance with reference 2.1.1.

b. Prepare existing deck grating and structural longitudinal(s) for installation of newly fabricated foundation.

c. Installation shall be oriented as identified in enclosure 1 “Simplified N7 Closed Loop”.

d. Heat Exchanger shall be hard mounted to NEW foundation with fasteners.

e. Heat Exchanger foundation shall be mounted in a way that does not interfere with normal maintenance.

f. Install a second vent on the head tank on the ½ inch flanged connection next to the fill funnel

g. Inspect the interior of the Manchester head tank to determine if there is a pipe inside the tank from the 1-1/4 inch vent connection.

h. Locate the FW CLS return pipe 1-1/2 inch valve at the head tank to the vertical pipe in a position that can be reached by hand and does not obstruct other accesses and allows full operation of valve.

i. Locate the FW CLS return water temperature transmitter and gage on the vertical leg of the pipe between the connection to the flow meter by-pass and the FW CLS return line isolation valve.

j. On the pump side install two pressure gages 0-100psi on the connections to the pressure differential indictor; one prior to the delta pressure indicator and on after the delta pressure indicator.

k. Install the saltwater overboard with a sleeve that is has a thickness of 1-inch.

l. Install the fresh water hull penetration overboard with a sleeve that is has a thickness of 1-inch.

m. The existing 6” Strainers, reducing station, gauge board, and drain pan from SW Firemain currently mounted in Shaft Alley portside shall remain. The System will supply water to the FW CLS heat exchanger and remain as an emergency SW lubrication system if upon failure of the NEW Freshwater Closed Loop System should fail. Open and inspect the strainers and separators in the firemain between the root valves off the fire main to the connection to the 1-1/4 - inch SW supply to the FW CLS heat exchanger.

n. Replace the isolation drain valve at the forward seal. The valve to be replaced is the isolation valve at the low point of the forward stern tube seal. The size is 1-1/4 union valve directly off the forward seal.

7.2.4 Contractor is requested to modify for the CLS supply and return piping as per below:

8.0 Supply Piping:

9.0 1. From the point where the supply piping penetrates the bulkhead in the shaft alley it will run aft under the installed LO piping. Use exiting or install new hangers to satisfy MSC’s GTR and IAW with ASTM F-708. A maximum distance between hangers is 5FT.

10.0 2. At the aft bulkhead of the space the FW CLS supply piping will penetrate the NT bulkhead in the area of the already existing ballast pipe. The bulkhead penetration will be IAW NAVSEA Drawing 810-6397430.

11.0 3. The supply piping will continue through the following two bulkheads at the approximately the same level. The bulkhead penetrations will be IAW NAVSEA Drawing 810-6397430.

12.0 4. Between bulkheads three and four the piping will be lower with either 45 degree elbows prior to penetrating the fifth bulkhead. The bulkhead penetrations will be IAW NAVSEA Drawing 810-6397430.

13.0 5. After penetrating the fifth bulkhead the supply piping will turn down penetrating three decks and entering the area to the port side of the shaft.

14.0 6. The piping will be installed port side of the shaft to align with the skin valve and to support installation of the ½ inch line for the control station for the FWD seal FW cooling.

15.0 7. All piping will be installed with pipe hangers and support IAW the MSC GTR IAW with ASTM F-708. A maximum distance between hangers is 5FT.

16.0 - The control station for the FWD seal FW cooling shall be installed to allow access to the stern tube seal, installation of the shaft proximity sensor and visibility of the pressure and flow sensors installed.

17.0 NOTES:

18.0 - The piping in the overhead of the shaft alley will not interfere with the operation of the overhead crane.

19.0 - Piping in the area of shaft will have spool pieces installed to support shaft removal. Flanges shall be placed at each fitting (elbow for example). Flanges shall be placed on straight runs so that pipe length of no more than six (6) feet.

20.0 FW CLS Return Piping

21.0 1. Replace the installed 1-1/4 CU-NI vent piping with 1-1/2 inch SST FW CLS return piping from the top of the stern tube isolation valve to the landing below the third deck. The return piping will be connected the existing CU-NI that continues to the third deck.

22.0 2. The vent piping will have a flanged T installed from the newly installed FW CLS 1-1/2 SST piping to all a return and allow the existing CU-NI piping to continue to operate as a vent terminating on the third deck.

23.0 3. The 1-1/2 SST return piping will have a flanged valve installed in this void between the flanged “T” and the continuation of the return piping running forward.

24.0 4. The existing vent piping up to the goose need will be connected and the isolation valve installed outside of the steering gear room as per the drawing.

25.0 5. The CLS return piping after the valve will run to the port side of the void.

26.0 6. The CLS return piping will run in parallel to the CLS supply piping penetrating forward five bulkheads.

27.0 7. The CLS return piping will exit the aft bulkhead of the shaft alley and be mounted with existing or new pipe hangers as needed to support MSC’s GTR and IAW with ASTM F-708. A maximum distance between hangers is 5FT.

28.0 8. In the forward part of the shaft alley (after the CLS supply piping turns to exist the shaft alley) will run forward and fittings installed to allow the return piping to exit the space at existing locations identified in the shaft ally.

29.0 - The piping in the overhead of the shaft alley will not interfere with the operation of the overhead crane.

30.0 - Piping in the area of shaft will have spool pieces installed to support shaft removal. Flanges shall be placed at each fitting (elbow for example). Flanges shall be placed on straight runs so that pipe length of no more than six (6) feet.

31.0 Provide 24 VDC power supply to the two (2) installed pressure gages to allow local read out of the pressure at the sensor.

32.0 Set the two 1-1/2 inch Rosemount flow meters over a range of 0-50 GPM vice the factory set of 0-150 GPM. These 0-50 GPM over a range of 4-20mA from the flow meters will match what MCCS is programmed to receive.

33.0 Ensure the connection in DAU 20 for the “REMOTE STOP” is a normally energized circuit. The Programmable Relay (PR1) requires that the MCCS Stop command be energized to have a normally closed relay.

34.0 Pressure to Stern Tube WS-PT-002 and Pressure to Inboard Stern Tube WS-PT-002 in MCCS will be set to 0-87.02 PSI vice 0-50 PSI.

35.0 Verify the ½ inch Rosemount flow meter to the correct range of 0-20 GPM and verify the MCCS setting of 4-20mA over a 0-20 GPM range.

36.0 Fabricate and install drain pan under NEW motor/pump and strainer bedplate. Drain pan shall be mounted providing adequate space between motor/pump bedplate to maintain drain cleanliness and support maintenance. The drain pan will have a 1-1/2 inch coaming and be connected to a 1-1/2 inch 316 SS pipe to remove water. The strainer drain line will be routed to the drains pan’s 1.5” inch . SST piping for the purpose of draining the system, install 1.5” SS316 piping run to FW Drain Tank (6-70-0) with inline check valve. Connection shall be made FWD of WC-V-176.

37.0 Fabricate and install drain pan under new heat exchanger. Drain pan shall be mounted providing adequate space between the heat exchanger to maintain drain cleanliness and support maintenance of the heat exchanger plates. Two 1/2 inch drain holes will be installed in the drain pan (one forward and one aft of the heat exchanger) connecting to the 1-1/2 inch drain line identified in 7.2.2 g. The combined drains from the pump skid and heat exchanger; and for the purpose of draining the system, will be connected to the 1.5” SS316 piping run to FW Drain Tank (6-70-0) with inline check valve. Connection shall be made FWD of WC-V-176.

38.0 Chamfers for welding of the aft seal will be no less than 10mm at 45 degree will be machined for the two weld locations.

39.0 When machining the aft stern tube foundation plate mounting bolt holes will be bottom tapped to the very bottom of the hole. This bottoming will ensure maximum usage of holes space for threads. The threaded depth will be 42mm.

39.1.1 Aft Seal Installation:

a. Machine the stern tube face in accordance with Figure 1 and reference 2.1.11. Machining shall include chamfering edges. Chamfering shall include the inner retainer ring area and outer tube ring areas to meet welding requirements. Dimension identified are approximations. Onsite MSCREP will validate and oversee machining efforts.

b. Once stern tube face has been machined to the dimensional requirements of the MSCREP, install/rig NEW Stern Tube Aft Seal Foundation plate.

c. Ensure TDC of NEW Stern Tube Foundation plate matches the NEW Aft Seal mounting ring. Aft Seal Mounting ring shall be aligned to allow future TDC for bearing measurements. In addition, the FW supply connection to the bearing shall be BDC.

Figure 1 – Stern Tube Face Machining Requirements

d. Alignment of Stern Tube Foundation Plate shall meet the following; Max runout WRT bearing area 0.000” +/-0.003”. Request “fitup” inspection by ABS, MSCREP prior to welding.

e. Weld NEW Stern Tube Aft Seal Foundation plate using welding sequence in reference 2.1.10. Root welds shall be applied to both inner and outer machined chamfered edges prior to final weld passes.

f. Inspect, verify, and document NEW stern Tube face to bearing area bore. Face machine seal area if outside tolerance. Unless otherwise stated in the above references, surface finish criteria Ra 3.2 or better.

g. Perform Magnetic Particle “NDT” Tests of newly installed welds. ABS, MSCREP shall witness.

h. Prior to installation of aft seal, stern tube coatings shall be applied to inside stern tube including the retaining ring and NEW stern tube foundation ring as stated in WI 903.

i. Once Propulsion shaft is installed as stated in WI 903, install the aft seal IAW reference 2.1.3.

j. Press up Propeller on propulsion shaft taper as stated in WI 903, validate the required length between NEW Stern Tube Face and Propeller Hub. Criteria 235mm +/-2mm. If required, shaft position shall be adjusted at the coupling to meet overall length requirements.

Note: Removal of the propeller may be required to attain achieve the required length required.

39.1.2 Fwd Seal Installation:

Install the FWD stern tube seal as stated in WI 904. The new retainer ring will require sand blast for correct paint profile, chlorides and paint. The retainer ring to match the stern tube protective coating criteria. This measure will ensure the retainer ring will be preserved and protected from deterioration by the elements.

a. Note: Do not coat the rings with excessive paint coating millage which will intern give a faults reading concerning required gap clearance specified in Work Item 7.12.6 upon assembly.

39.2 Mechanical/Fluid:

39.2.1 All pipe shall be isolated with rubber grommets to eliminate chaffing. Installation shall and meet ABS Surveyor inspection requirements.

39.2.2 Aft Seal supply piping:

a. Supply piping penetration through Hull shall be presented to ABS prior to welding or cutting for prior approval. Wartsila and MSCREP shall determine exact location of penetration thru hull just forward of void (6-83-0) bulkhead.

Figure 2 – Piping Penetration through Shell Plating

b. Install NEW piping run in accordance with reference 2.1.1.

c. Piping shall run from New motor/pump, strainer assembly and heat exchanger through bulkhead forward of frame 83 port side.

d. Piping penetration shall meet the requirements of Figure 2. Shell plating is 24.5mm thk, GR A STL.

e. Per reference 2.1.1, install 1-1/2” SS316 SCH 160 piping and fitting from aft seal thru penetrating bulkheads to shaft alley (5-79-0). Termination beyond bulkheads shall be flanged where SS piping continues.

f. Supply piping run from shaft alley penetration bulkhead external to the Ship shall be protected from debri or damage once installed. Install a guard around the Newly installed FW Supply Piping, from penetration outboard FWD of frame 83 to Aft seal piping connection.

g. Fabricate fitting identified in Figure 3 below. Fitting shall be used to connect FW Supply piping to BDC mounting ring on Aft Seal.

Figure 3 – Aft Seal FW Supply Fitting (SS316)

39.2.3 Fwd Seal Return Piping:

a. Install NEW piping run in accordance with reference 2.1.1 and enclosure 1.

39.2.4 Emergency SW piping supply:

a. Install emergency SW piping connection to NEW FW return piping just “below” FWD seal return with isolation ball valve (flanged). Ball valve shall be normally closed, marked, and labeled.

b. Emergency SW supply shall run from existing SW Fire Main, starboard side in shaft alley (5-79-0) downstream of existing SW FM relief valve SW-V-216 and SW stern tube supply.

c. Existing vent piping from FWD seal leading to passage 3-79-01 shall remain.

39.2.5 Head Tank piping:

a. Install NEW FW supply, NEW Distilled water Supply to Head Tank, FW return, vent, and supply piping in accordance with reference 2.1.1.

b. Head Tank shall be fitted with SURESITE Site Glass and Switch modules for High and low level alarms and isolation ball valves as per reference 2.1.1.

39.2.6 Pump/Motor and Strainer Bedplate piping:

a. Install NEW piping in accordance with reference 2.1.1.

39.2.7 Heat Exchanger piping:

a. Install NEW piping in accordance with reference 2.1.1.

b. SW overboard piping from heat exchanger shall be run overboard and adjacent to heat exchanger between longitudinal stiffeners, away from welds, and existing external ICCP Coating System. Penetration will be 1 or 2 feet away from bulkhead leading to shaft alley. MSCREP and Wartsila REP will determine exact location.

39.2.8 Distilled Feed Water to Head Tank:

a. Supply or feed water to the Head tank shall run downstream of Distillate hydrophore tank in motor propulsion room (5-75-0), 4th deck to ½” flanged connection on head tank as per reference 2.1.1.

b. Install 2ea 1/2" NPS isolation ball valves, 1ea at hydrophore connection in motor propulsion room (5-75-0) and 1ea at head tank in fan room (2-75-2).

39.2.9 Vortex Flow Meters, Temperature/Pressure Gauges, and Tank Level indication:

a. Install NEW Vortex flow meters, temperature/pressure gauges, transducers, and tank level indicators in accordance with reference 2.1.1.

b. Vortex flow meters, pressure and temperature gauges, Tank Level indication (4-20mA) shall be connected to DAU20 unless GE Energy Rep sees otherwise. SY Contractor shall run cable to and from sensor(s) to appropriate DAU.

c. GE Energy Tech Rep shall update the IO Schedule spreadsheet to quantify sensor location, DAU, equipment description, sensor type, module type, channel number etc. and provide the Chief Engineer and MSC Rep the updated copy in excel format.

39.3 Electrical:

39.3.1 All Electrical work shall be performed in accordance with IEEE Std 45 requirements.

39.3.2 All wiring/connections/cable runs, etc shall be installed in accordance with reference 2.1.1.

39.3.3 Motor Controller shall be mounted adjacent to Pump/Motor/Strainer Bedplate in Shaft Alley (5-79-0).

39.3.4 Signal Cabling shall be run to/from DAU 20 unless otherwise directed by the MSCREP. DAU 20 is located in Propulsion Motor Equipment Rm (3-75-1) as identified in reference 2.1.1.

39.3.5 Supply Power shall be provided from Power Panels P418 and P415 (480VAC) as per reference 2.1.1.

39.4 Electronics:

None.

39.5 Preparation of Drawings/Documents:

39.5.1 Contractor shall provide structural, Electrical, and Piping “As Built” drawings.

39.5.2 As Built drawings shall be provided in Autocad and Pdf format (electronically).

39.5.3 As Built shall be provided to the MSCREP from references 2.1.1. OEM shall provide all necessary piping, electrical, and structural diagrams for Shipyard bidding purposes.

39.6 Inspections and Testing:

39.6.1 All deck/bulkhead collars and penetrations shall be air tested. No leakage allowed. All tests shall be performed prior to installing lagging/insulation and applying paint to any disturbed surfaces.

39.6.2 WARTSILA OEM Technical Representative shall Torque fasteners in accordance with all applicable references. MSCREP / ABS shall witness.

39.6.3 Connect NEW fresh water cooling water union to the Aft Seal. Fill the system with Distilled water and perform a hydrostatic test. Criteria, Hydrostatic test pressure 30psi (2bar) for 15 minutes. Leakage rate shall not exceed 1.8 Liters per hour. MSCREP, Chief Engineer, and ABS shall witness hydrostatic tests.

39.6.4 Perform operational check of NEW system. MSCREP, Chief Engineer, and ABS shall witness testing.

39.7 Painting, labeling and Markings:

39.7.1 Clean, prime, and paint all new and modified surfaces to match surrounding surfaces in accordance with GTR 7.

39.8 Marking:

39.8.1 Label all new piping/valves with service and direction of flow in accordance with GTR 29.

39.8.2 Secure the service of Custom Panel to: Provide and install cable connectors and penetrations in all equipment. Custom Panel to accomplish electrical hook up all cables to all devices.

Custom Panel to accomplish electrical light off and test the system.

Custom Panel to calibrate all sensors to match the MCCS program.

39.9 Manufacturers Representative:

39.9.1 Contractor shall provide the following OEM Technical representatives:

Wartsila Defense Inc.

Scott Miller

3617 Koppens Way

Chesapeake, VA 23323

Office: 757-966-5420

Fax: 757-558-4831

Cell: 757-927-4422

GE Energy

David Thornton

Phone: 804-955-0015

610 Epsilon Drive

Pittsburgh, PA 15238

Phone: 804-955-0015 Custom Panel

Matthew Werling

Phone: (757)226-0522 2697 International Parkway

Parkway #4, Suite 180

Virginia Beach, VA 23452 mwerling@custompnl.com

40.0 GENERAL REQUIREMENTS: None additional.

ENCLOSURE 1: Simplified N7 Fresh Water Closed Loop System

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