Statement_of_work.pdf

NOAA Hassler

( NOAA-S 250 )

Propulsion Machinery CONTRACT NO. N00000-00-X-0000

ITEM NO. 20002 CATEGORY "A" 2025-08-05

Aftercooler Core Replacement Plus Cleaning Kusterer, Justin

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1.1 Intent:

1.1.1 This item describes the requirement to change out and

clean aftercoolers on the port and starboard main engines (MPDE) and ship’s service diesel generators (SSDG) aboard NOAA Ship

FERDINAND R. HASSLER.

1.2 References:

1.2.1 None

1.3 Government Furnished Material:

1.3.1 2 sets of aftercoolers for MPDEs (C32)

1.3.2 2 sets of aftercoolers for SSDGs (C9)

1.4 Requirements:

1.4.1 Wash, chemically clean and test the GFM aftercooler

cores. Test to 30 psi.

1.4.2 Remove existing and install GFM aftercooler cores on both the PORT and STARBOARD main diesel engines, and both the port and starboard SSDGs.

1.4.3 Provide new OEM seal and gasket sets to accommodate

aftercooler changes on each engine.

1.4.4 Provide sealant for aftercooler cores. See 1.6.4.

1.4.5 Inspect and clean turbo housings and air lines.

1.4.6 Inspect intake plenum.

1.4.7 Inspect remaining connection points and parts removed to facilitate aftercooler core change.

1.4.8 Checkpoint: Submit a condition found report to the port engineer and contracting officer to recommend additional replacement parts and maintenance, as required.

1.4.9 Reinstall all components, utilizing new OEM seals and

gaskets.

1.4.10 Upon completion of all work, perform an operational test of all four engines. Observe engines for proper operation and control, to the satisfaction of the Chief Marine Engineer or Port Engineer.

1.4.11 Wash, chemically clean and test the removed aftercooler cores. Test to 30 psi.

1.4.12 Return removed aftercooler cores to port office.

Propulsion Machinery CONTRACT NO. N00000-00-X-0000

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1.4.13 Provide a service summary report. Include individual

engine hours and total fuel burn, inspection observations and any recommendations for additional maintenance or repairs.

1.5 Quality Assurance:

1.5.1 Run each engine until normal operating temperatures and conditions are met. Verify no leaks and proper operational parameters are met.

1.5.2 Perform a submerged hydrostatic test on each core to 30 psi. Provide testing report.

1.6 Notes:

1.6.1 MPDEs are CAT C-32 Engines, SSDGs are CAT C9 Engines.

Engine S/Ns as follows:

PME RND00123

SME RND00124

PDG C9J00506

SDG C9J00507

1.6.2 The replacement work is expected to be performed at the vessel’s homeport UNH Judd Gregg Marine Research Complex 29 Wentworth Road New Castle, NH 03854 facility between 10/1/2025 and 10/6/2025.08/18/

1.6.3 The point of contact for this work is the Port Engineer Justin Kusterer. He can be reached at 240-704-2815 or justin.kusterer@noaa.gov

1.6.4 Caterpillar recommends the following core cleaner:

Part Number Description Size

1U5490 *Hydrosolv 4165 19L (5 US gallon)

174-6854 *Hydrosolv 100 19L (5 US Gallon

*: Use a two to five percent concentration of the cleaner at temperatures up to 93deg C (200 degF). Refer to application guide, NEHS050526 or consult your Caterpillar dealer for more information.

1.6.5 It has been noted that after having been cleaned and

hydro tested, sealant may be removed from the aftercooler cores outer perimeter. The Contractor shall provide the required sealant in the event that GFE cores are lacking. Example:

Propulsion Machinery CONTRACT NO. N00000-00-X-0000

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