SOW-70Z08525Q0029251-UPDATED AUG18 2025.doc

52100_TAB_0825_753

WORK ITEM 1: Fire Pump, Renew

1.1 Intent. This work item describes the requirements for the Contractor to renew Fire Pump Assembly listed in Table 1.

table 1: Fire pump data

Fire Pump No. 5 Assembly

(51 Inch X 33 Inch X 27 Inch) Approximate Weight 2450 Lbs. (Figure 2 For Reference)

(5-70-01-E)

1.2 Government-furnished property.

2. REFERENCES

Coast Guard Drawings

Coast Guard Drawing 418A-WMSL-100-001, Rev B, General Arrangements

Coast Guard Drawing 418A-WMSL-801-004, Rev B, Booklet of General Plans

Coast Guard Drawing 750-WMSL-100-36, Rev F, Unit 3110 Structure 1st Platform and below FRS 65-77 (ASC100311-FM) (UNSIGNED)

Coast Guard Drawing 750-WMSL-101-027, Rev -, Equipment Removal Route Drawing NSC3 & Follow (AS3101009)

Coast Guard Drawing 750-WMSL-180-012, Rev H, Foundation Arrangement Drawing Design Unit 2110 BKLT No.1

Coast Guard Drawing 750-WMSL-180-012, Rev H, Foundation Arrangement Drawing Design Unit 2110 BKLT No.1

Coast Guard Drawing 750-WMSL-320-041, Rev C, Electrical One Line Diagram (NSC4 - SRD) (ASC320001D) (UNSIGNED) Coast Guard Drawing 750-WMSL-521-1, Rev -, Firemain Diagram Coast Guard Drawing 750-WMSL-521-26, Rev D, Firemain Unit 3110 (ASC521311-FM) (UNSIGNED) Coast Guard Publications

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

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

Surface Forces Logistics Center Standard Specification 3041 (SFLC Std Spec 3041), 2022, Shipboard Electrical Cable Test

Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2022, Shipboard Electrical Cable Removal, Relocation, Splice, Repair, and Installation Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures

Coast Guard Technical Publication (TP) 7013, 04-OCT-07, Self-Priming Centrifugal Pumps (Close Coupled)

Other References

Naval Sea Systems Command (NAVSEA) S0400-AD-URM-010/TUM, 5/23/2007, Tag-Out User’s Manual The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2004, Solvent Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.3 (SSPC-SP 3), 2004, Power Tool Cleaning

3. REQUIREMENTS

3.1 General.

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

None.

3.1.2 Tech Rep.

Not applicable.

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

3.1.4 Interferences. The Contractor must be aware that interferences in way of work include, but are not limited to the below-listed. Handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences):

· System fluid in the pump and associated piping.

· Piping.

· Electrical Cables.

· Cofferdam Required at seachest

3.1.5 Fire Pump isolation. Provide diver services for installation and removal of:

· Seachest cofferdam

· Plug on fire pump overboard discharge note

Cofferdam at sea chest suction and plug on overboard discharge are necessary to maintain 2 boundary protection.

3.1.6 Provide diver services to install a cofferdam on the sea chest suction and plug the fire pump overboard discharge. Provide diver services and remove the cofferdam and plug from the overboard connection upon completion of work.

3.1.7 Crane and rigging services. The Contractor must provide crane and rigging services to renew GFP the fire Pump. The Contractor must provide rigging plan at the arrival conference.

3.1.8 If required, the Contractor must provide and install lifting pad eyes for removal and installation of Fire Pumpin accordance with SFLC Std Spec 0740. Remove lifting pad eyes after completion of the work item.

3.1.8.1 Maximum working load for various size pad eye is listed in the Table 2. Expected working loads may be considerably less than maximum working load, i.e. a 1” padeye used in the rigging plan will have an “expected working load” of only 6,000 lbs (not the maximum 9,800 lbs) and pull tested to 9,000 lbs.

TABLE 2 - PAD EYE MAXIMUM WORKING LOADS

3.1.9 Work locations. The concerned work area is identified in Table 1. See the applicable drawings in section 2 for guidance, locations, and details.

3.1.10 Electrical work. The Contractor must accomplish all electrical work in accordance with SFLC Std Spec 3042, and test cables in accordance with SFLC Std Spec 3041.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.2 Operational test, initial. Prior to commencement of work, the Contractor must 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.

WARNING

Maintain double boundary protection to prevent flooding.

3.3 Fire pump inlet and outlet isolation. The Contractor must ensure a double boundary protection is always maintained. The Contractor must install cofferdam, overboard discharge plug and blank connections to isolate the fire pump from the sea as described below and as required by NAVSEA S0400-AD-URM-010/TUM Navy Tag-Out User’s Manual. Firemain pump piping connection is shown on the Coast Guard Drawing 750-WMSL-521-026.

3.3.1 After installation of the plug on the overboard discharge, break the fire main on the inboard side of the overboard valve and install a blank flange with gasket on the inboard side of the fire main overboard valve, protecting against flooding through the overboard valve.

3.3.2 Remove the blank upon completion of work and prior to removal of the plug in the overboard connection.

3.3.3 Fire pump suction connection. After cofferdam is installed, close the fire pump suction valve from the sea chest. Break the fire pump suction connection on the downstream side of the valve and install a blank flange.

3.3.4 Remove the blank flanges upon completion of work and prior to removal of the plug in the overboard connection.

3.3.5 The Contractor must close the fire pump suction from the sea chest. Break the fire pump suction connection on the downstream side of the valve and install a blank flange.

3.3.6 Temporarily install a blank flange and gasket on the fire pump discharge piping flange as soon as the fire pump is disconnected to allow continued operation of the firemain in an emergency. Remove the blank flange and reconnect the fire pump upon completion of repairs.

3.4 Electrical connections. The Contractor must disconnect the electrical cables to Fire Pump in accordance with SFLC Std Spec 3042 and record wiring information for later re-connection. Insulate the removed cable ends with electrical tape for safety. Submit a CFR.

3.5 Fire pump removal. After all piping and electrical connections are removed, the Contractor must remove Fire Pump Assembly from its foundation.

3.5.1 The Contractor must rig the existing Fire Pump Assembly from the cutter (Pump Room #2): 5-72-01-E) to Pier as per rigging route shown on Coast Guard Drawing 750-WMSL-101-027.

3.6 Foundation Preservation. While Fire Pump Assembly is removed, wire brush or power tool clean the pump foundations and the area under the pump foundations to approximately 1 ft. away from the foundations to remove loose paint and rust. Feather all edges. Clean the areas in accordance with SSPC SP-3. Solvent wipe the areas in accordance with SSPC SP-1. Paint the prepared areas with two coats of epoxy paint to match the existing system as described in SFLC Std Spec 6310.

3.7 GFP Fire Pump installation. The Contractor must rig GFP Fire Pump Assembly from Pier to the cutter (Pump Room #2, 5-70-01-E) as per rigging route shown on Coast Guard Drawing 750-WMSL-101-027.

3.7.1 The Contractor must mount GFP Fire Pump to its foundation as shown on Coast Guard Drawing 750-WMSL-180-012 with new fasteners.

3.7.2 Clean piping gasket surfaces before installing new gaskets. Provide and install new gaskets at all piping connection. Renew all mounting fasteners.

3.7.3 The Contractor must make all piping connection to Fire Pump to its original operating condition as shown on Coast Guard Drawing 750-WMSL-521-026 and TP 7013. Verify cofferdam and plugs have

3.7.4 The Contractor must re-connect electrical cables with previously recorded wiring information in accordance with SFLC Std Spec 3041/3042 and TP 7013.

3.8 Installation checkout. Perform installation checkout in accordance with TP 7013. Verify cofferdam and overboard plugs have been removed before operational test. Submit a CFR.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.9 Operational test – post repairs. After completion of work, the Contractor must perform an operational test (by Coast Guard personnel) of the Fire Pump to prove satisfactory operating condition, with no leakage. Operate the Fire Pump for ½ Hour. Verify that the direction of pump rotation is correct. Submit a CFR.

3.6 Touch-up preservation. The Contractor must prepare and touch-up coat all disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, Appendix B (Cutter and Boat Interior Painting Systems). Abide by all touch-up requirements outlined in SFLC Std Spec 0000, Appendix A (Requirements for Preservation of Ship Structures).

4. NOTES

4.1 Figures. For illustration only.

FIGURE 1: FIRE INSTALLATION (CGC MUNRO) FOR REFERENCE ONLY

FIGURE 2: GFP FIRE PUMP ASSEMBLY