N3220517Q4558_SOW.docx

USNS MERCY

(T-AH 19)

MACHINERY, AUXILIARY SYSTEMS 19 JULY 2017

ITEM NO. 501 (CASREP 17035) MSC/SSUSD/JGS

Category “A”

#2 MAIN FIRE AND #2 FIRE AND FLUSHING PUMPS OVERHAUL (VR17-0079)

1.0 ABSTRACT

1.1 This item describes the requirements to overhaul the #2 Main Fire Pump and #2 Fire and Flushing Pump and motors.

2.0 REFERENCES/ENCLOSURE:

2.1 MSC SWIRRR Item 019

2.2 MSC SWIRRR Item 031

3.0 ITEM LOCATION/DESCRIPTION

3.1 Location: 6-87-0 (Auxiliary Pump Room)

3.2 Quantity and Description:

a. One (1) ea. #2 Main Fire Pump, Centrifugal

b. One (1) ea. #2 Fire and Flushing Pump, Centrifugal Goulds Pump, Model 3410S 4x6-11 Serial No. A262C426-2 One (1) ea. Motor, 460 VAC, 150 HP, 3575 RPM Model B432318, Serial No. B432318-010-L02

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/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.

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 After re-installation ship’s force will test run pump and take VMS data to confirm operation within specifications.

7.0 STATEMENT OF WORK

7.1 Coordinate with ships force to ensure the system is “Tagged-Out” and “Locked-Out” prior to starting any work on this system.

7.2 Remove all necessary interferences and re-install them after the work is completed.

7.3 Disconnect motor leads and remove motors and pumps from theirs foundations. Rig the motors and pumps off the ship and transport the pumps and motors to the contractor’s facility. Pumps and motors will not be removed from the ship until contractor has all parts in hand.

7.4 Overhaul the pumps specified in paragraph 3.2 in accordance with reference 2.2. Submit a condition found report (CFR) to the port engineer. Replace bearings, mechanical seals, gland seal plates, impeller, shaft sleeves, and wearing rings. All replacement parts shall be provided by the contractor. Pumps and motors will not be removed from the ship until contractor has all parts in hand.

7.5 After repairs are completed, conduct hydrostatic test of the pumps as per manufacturer's specifications.

7.6 Overhaul the motors specified in paragraph 3.2 in accordance with reference 2.1. Submit a condition found report (CFR) to the port engineer.

7.7 After satisfactory tests of pumps and motors, transport the pumps and motors back to the ship and re-install to its foundations. Ensure alignment of motor and pump is witnessed by ABS and ships force.

7.8 Reconnect all piping and tubings using new gaskets and fasteners. Clear Tags and conduct full operational test. The chief engineer and the port engineer to witness.

7.9 Submit final report detailing conditions found, parts replaced and results of tests conducted to the chief engineer, port engineer and the ABS surveyor.

8.0 GENERAL REQUIREMENTS: None

LOCATION:

USNS MERCY (T-AH 19)

32ND ST. NAVAL STATION, PIER 1

SAN DIEGO, CA 92136

501-1