SN25-046 YUKON AUXILIARY BOILER SERVICE AND REPAIR.doc

USNS Yukon

( TAO 202 )

1.0 ABSTRACT

Replace the PLC and HMI with CFM parts to #2 boiler and inspect #1 boiler heating coil leak. Perform operational test to both boilers.

2.0 REFERENCES

2.1 NAVSEA Technical Manual T9517-AU-MMC-010, Auxiliary Oil-Fired Boiler, Vapor Corp. (available on board vessel)

3.0 ITEM LOCATION/DESCRIPTION

3.1 Location/Quantity

3.1.1 Location: Engine Room, Generator flat

3.1.2 Quantity: Two boilers

3.2 Description/Manufacturer’s Data

3.2.1 MFR: Vapor Corp.

Model: FNC7-4748-VHK-NCI MWP: 300 psi @ 425 degrees F Max output: 200 BHP Capacity: 6900 lbs/hr

3.2.2 H.S.: 308 square feet

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: None

5.0 NOTES

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 All work performed shall be to the satisfaction of the Port Engineer, Chief Engineer, ABS Surveyor and the manufacturer’s authorized technical field service representative.

7.0 STATEMENT OF WORK REQUIRED

7.0 Provide the services of a manufacturer’s authorized technical field service representative to perform the following repairs to the Nos. 1 and 2 Auxiliary Boilers described in paragraph 3.0, using reference 2.1.1 for guidance.

7.0 In conjunction with ship’s force, isolate and tag-out electrically and mechanically the Nos. 1 & 2 Auxiliary Boilers prior to commencement of repairs.

7.2.1 Replace the failed PLC and HMI parts to boiler #1 with CFM provided.

7.0 Conduct an operational test of the boilers. Test and adjust air and fuel flow rates for both low fire and high fire modes to manufacturer’s specifications. Verify that all automatic controls operate properly under varying load conditions to the satisfaction of the Port Engineer and the Chief Engineer.

7.0 Troubleshoot the safety loop system and clear the active safety loop open alarm on #2 boiler, perform the operational test of #2 boiler for 24 hours with load on the steam system and demonstrate boiler operation to ABS and ships force.

7.4 Reports

7.0 When inspection, service and testing reveal any deficiency a condition report is to be submitted to the OMT REP with recommended repairs and parts required. Submit one electronic copy in Portable Document Format (PDF).

7.0 All reports and checklists are to be completed and signed by the person who carried out the inspection and maintenance work and countersigned by the Company’s

7.0 Manufacturer's Representative

7.0 The contractor shall provide the services of a manufacturer’s authorized technical field service representative for the equipment specified in paragraph 3.0 throughout the performance of this work item.

7.0 Suggested Sources:

Vapor Power

L&M Combustion,Inc 551 S. Country Line Rd.

1201 S Glencoe Rd Franklin Park, IL 60131

New Smyrna Beach, FL 32168 Phone: 630-694-5500

Phone: 386-689-2593 Fax: 630-694-2230

Email: jhinkel@l-mcombustion.com Email: snagy@vaporpower.com POC: Jason Hinkel POC: Sue Nagy

7.6 Preparation of Drawings: Prepare tech manual pages outlining the operation of the new boiler PLCs and HMI.

7.7 Provide electronic copies of all revised and/or updated technical documentation including drawings, technical manuals, service bulletins, parts lists, certification and test data associated with the work performed or parts supplied to the OMT REP.

8.0 GENERAL REQUIREMENTS: None additional