0109_A_ Bilge Well Preservation.doc

USNS Matthew Perry

(T-AKE 10)

HULL STRUCTURE

N40442-10-R-3012 12 March 2010

ITEM NO. 109

Category "A" MSFSC/Johnson/MARTIN

BILGE WELL PRESERVATION

1.0 ABSTRACT

This item describes the coating of the Bilge Wells in Main Machinery and Cargo Spaces.

2.0 REFERENCES

2.1 Belzona 5811 (Immersion Grade) Information Sheet

3.0 ITEM LOCATION AND DESCRIPTION

3.1 Quantity/Location:

3.1.1 Four (4) bilge wells in the Auxiliary Machinery Room (AMR) (5-58-0).

-AMR Starboard Forward (5-58-1)

-AMR Port Forward (5-58-2)

-AMR Starboard Aft (5-65-1)

-AMR Port Aft (5-65-2)

3.1.2 Three (3) bilge wells in the Main Machinery Room (MMR) (5-66-0).

-MMR Starboard Forward (5-66-1)

-MMR Port Forward (5-66-2)

-MMR Aft (5-75-0)

3.1.3 One (1) bilge well in the Propulsion Motor Room (5-75-0).

-Propulsion Motor Room (5-77-0)

3.1.4 One (1) bilge well in the Shaft Alley (5-79-1).

-Shaft Alley (5-80-0)

3.1.5 Two (2) bilge wells in Cargo and Auxiliary Pump Room (5-34-2).

-Cargo & Aux Pump room Starboard (5-35-1)

-Cargo & Aux Pump room Port (5-35-2)

3.1.6 One (1) Bilge Well in the Emergency Fire Pump Room (4-74-2).

3.1.7 Eight (8) bilge wells in the Cargo Holds.

-No. 1 Cargo Hold Starboard Forward (5-40-1)

-No. 1 Cargo Hold Port Forward (5-40-2)

-No. 1 Cargo Hold Starboard Aft (5-49-1)

-No. 1 Cargo Hold Port Aft (5-49-2)

-No. 2 Cargo Hold Starboard Forward (5-49-1)

-No. 2 Cargo Hold Port Forward (5-49-2)

-No. 2 Cargo Hold Starboard Aft (5-58-1)

-No. 2 Cargo Hold Port Aft (5-58-2)

3.2 Quantity:

3.2.1 Each Bilge well is approximately 130 square feet for a total of 2600 square feet.

3.3 Item Description/ Manufacturers Data:

3.3.1 Belzona 5811

4.0 GOVERNMENT FURNISHED EQUIPMENT/ MATERIALS/ SERVICES: None

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 GTR’s including but not limited to GTR’s 1 through 7, 22, 24, 25, and 29.

5.2 The contractor and all subcontractors, regardless of tier are advised to review other work items under this contract to determine their effect on the work required under this work item. Many of the definitions relating to performance of this work item are found in Work Item 001.

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 with out proper authorization.

6.0 QUALITY ASSURANCE REQUIREMENTS: None additional

7.0 STATEMENT OF WORK:

7.1 Pump all fluids from bilge pockets. Use shipyard provided hoses and pumps. Transfer effluent off ship. Dispose of in accordance with all Federal, State, and local regulations.

7.2 Temporary remove, redirect or cap any piping that may drain into bilge pockets.

7.3 Test all bilge level alarms prior to removing and verify they function properly. Submit an "as found" condition report to the MSCREP.

7.4 Electrically isolate and tag out bilge alarm floats in each of the bilge wells identified in 3.0.

7.5 Disconnect bilge alarms/floats, temporarily remove and store for reuse. Remove all interferences from bilge well.

7.6 Temporarily install 5/8” thick plywood containment around each bilge well. Containment shall be sealed to the tank tops with RTV to maintain a dry surface. Containment shall fully enclose the well.

7.7 Containment shall have ventilation to main deck with sufficient capacity to evacuate paint fumes.

7.8 On surfaces to be coated, thoroughly remove oily residues using a commercial degreaser such as Klenzstone Superb.

7.9 Prepare all surfaces to a SSPC SP-11 condition prior to paint application.

7.10 Pump dry and clean bilge wells.

7.11 Solvent wipe bilge wells and piping extending into bilge wells. Belzona tech representative to approve wipe down.

7.12 If priming is necessary and approved by the Belzona Consultant, apply Belzona 3921 as a holding primer IAW product IFU. It is advised that Belzona Immersion Grade be applied directly to the substrate.

7.13 Perform a thinner wipe down on primed areas. Belzona representative shall approval surface prior to application of Belzona 5811. Contractor shall take surface temp readings, Testex tape readings, and ensure surface is free of oil and chloride contaminants.

7.14 Apply Belzona 5811 coating to all surfaces within the bilge well (i.e. piping, valves, grating, etc.) in accordance with Belzona representatives’ instructions.

7.14.a Stripe coat hard to access areas, inside and outside edges, and weld seams.

7.14.b Apply two complete coats of Belzona Immersion Grade IAW product IFU. Use contrasting colors between each Belzona application.

7.14.c Thoroughly inspect completed coating. Use inspection mirrors when necessary. Complete repairs as necessary. Contractor shall take random dry mil readings after each application of Belzona 5811. Five readings every 100sq ft.

7.15 Remove Containment and ventilation.

7.16 Remove all plugs and restore any removed piping.

7.17 Reinstall all bilge well level alarms.

7.18 Preparation of Drawings: None additional

7.19 Inspection/Testing

7.19.1 Belzona Technical Representative will observe application to insure proper application, keeping a log and attaching pictures of spaces completed, before and after.

7.19.2 Test bilge alarms in the presence of MSCREP.

7.19.3 Test all motor operated valves in presence of MSCREP.

7.20 Painting

7.20.1 Clean and prepare the disturbed areas and apply a primer and two topcoats of paint to all areas disturbed as a result of this spec item to match the adjacent surroundings.

7.22 Marking

7.22.1 Install nameplates, notices, and markings for all new and modified systems.

7.23 Manufacturer's Representative

7.23.1 Provide Belzona representative to oversee all aspects of surface preparation and product application. For bidding purposes assume 80 hours of manufacturer’s representative services

8.0 GENERAL REQUIREMENTS: None additional

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