0508_A_EDG_MAINTENANCE_-_Revision_A.doc

USNS Mercy

(T-AH 19)

Auxiliary Machinery Systems

N32205-15-R-5000

ITEM NO. 508

CATEGORY "A"

21 May 2015 EDG Maintenance

HLK

ADD 1

1. ABSTRACT

1.1. This item describes maintenance for the Emergency Diesel Generator (EDG).

2. REFERENCES/ENCLOSURES:

2.1. Technical Manual T6270-AG-MMC-010, “Operating Manual For Diesel Engines”

2.2. Technical Manual T6270-AG-MMC-030, “Spare Parts Catalogue For Diesel Engines”

3. ITEM LOCATION/QUANTITY/DESCRIPTION

3.1. Location: EDG Room, 01-129-0

Radiator Room, 03-132-0

3.2. Description/Quantity:

3.2.1. Engine Mfr: MAN

Type: V20/27 Speed: 900 rpm Power: 2172 hp

4. GOVERNMENT FURNISHED MATERIAL: None

5. NOTES: None

6. QUALITY ASSURANCE REQUIREMENTS:

6.1. All repairs are to be accomplished in accordance with ABS Rules. All material is to meet regulatory body requirements.

7. STATEMENT OF WORK REQUIRED

7.1. Provide OEM tech rep to work with ship’s force to adjust valve lash and perform hourly maintenance. Use Reference 2.1 and 2.2 for guidance.

7.1.1. Manually clean EDG, removing dirt, grease, fuel, and lube oil

7.1.2. Replace all lube oil, fuel oil, and air filters.

7.1.3. Replace all drive belts.

7.1.4. Replace all hoses to include, jacket water, lube oil, fuel oil, and start air. Template off existing hoses.

7.1.4.1. Replace all hardware associated with hoses. New hardware is to be 316L SS or Nicu.

7.1.4.2. Replace all gaskets associated with hoses. New gaskets are to be manufactured by Garlock.

7.1.4.3. Replace all hose clamps associated with hoses. New hose clamps are to be 316L SS.

7.1.4.4. Hydro all hoses prior to install. Tag all Hoses with hydro test information to include date and pressure and who perform hydro testing.

7.1.5. Service the Cooling water system. Use Reference 2.1 for guidance

7.1.5.1. Drain and flush radiator and heat exchanger. Clean as necessary

7.1.5.2. Refill Jacket Water using distilled or de-ionized water. Add proper levels of growth inhibitor and antifreeze to cooling system.

7.1.5.3. Replace water temperature regulator and associated seals and gaskets.

7.1.6. Test run the EDG and adjust as necessary.

7.2. Provide three (3) hard copies and one (1) electrical copy of the following to the Chief Engineer and MSCREP:

A) A Hose list that is to include at the minimum: hose size, hose length, hose material, fitting type, fitting material, and fluid, for each hose.

B) A report from tech rep of work done, test run results, and recommendations.

8.0 GENERAL REQUIREMENTS: None Additional

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