OVERHAULDESCRIPTION.SAMS.pdf

This is an Overhaul Description document for a U.S. Coast Guard fluid cooler requiring complete overhaul and repair services.

Item and Scope: The contractor must provide complete overhaul and repair services for one industrial fluid cooler (heat exchanger), Stock Number 4420-01-600-2330, Part Number 23535343, used on 45-foot Response Boat Medium (RBM) vessels. The cooler is manufactured by MTU America Inc. (OEM). All labor and materials must be provided to perform overhaul services covering the entire assembly, with the objective of restoring the item to a condition equal to a new unit. Preliminary disassembly and inspection shall follow OEM procedures and specifications. The contractor must submit a detailed cost estimate to the Coast Guard Contracting Officer for approval before beginning work, including part numbers, component costs, labor hours, labor rates, and the cost of an identical new component for comparison purposes.

Technical Requirements: Replacement parts must be new original OEM parts only; reclaimed, recycled, or aftermarket parts are prohibited. All pipe plugs must be replaced with new grade 316 stainless steel per ASTM A 276 standards using Teflon tape or thread sealers. The item must be painted with rust preventive metal primer and Silicone Alkyd Enamel Type III Class 1 finish coat in "Machinery Gray" per Federal Standard 595 color number 16376, with total paint thickness of 4 to 6 mils dry film (not to exceed 12 mils). A permanent decal or label must be affixed indicating the overhaul date and location. After completion, the contractor must conduct pressure testing of the system and document results in a test report provided to the Coast Guard Quality Assurance Representative. The contractor guarantees the item against defects leading to failure for up to two years after delivery to the Coast Guard. Applicable standards referenced include ANSI/NCSL Z540.3-2006, ASTM standards, MTU Engine Service manual MS25056/00E, and ASQ Q90001-2008 Quality Management System Requirements.