89MVA15007_00_A01.pdf

This document is a Job Specification for the installation of a knuckle boom crane on the YON-285 barge at a Ship Repair Facility in Japan. The work is divided into three parts: Part I covers hull work including foundation installation for the knuckle boom crane assembly with hydraulic power unit, requiring welding, nondestructive testing, and surface cleaning and preservation. Part II encompasses mechanical and electrical work involving installation of the crane assembly, hydraulic system filling and purging, slewing gearbox oil, fixture bolt torqueing, equipment bonding and grounding, and load testing at two critical stress conditions. Part III addresses hydraulic piping work including pressure line, return line, and casing drain line installation with Class P-1 and P-2 piping, welding, hydrostatic testing, cleaning, flushing, and sampling to verify system fluid cleanliness per SAE AS4059 Class 9 standards.

The anticipated production completion date is February 2, 2027, with a Period of Performance starting September 28, 2026. Government-furnished materials are provided, including welding rods, plate metals, structural components, hydraulic fluids, and lubricating oils. The work requires compliance with referenced naval standards, technical manuals, and test procedures, including initial proof load certification testing of the M180E.20A5 knuckle boom crane at 125% of rated capacity (9,330-9,796 lbs at 4.7 meters and 2,398-2,517 lbs at 13.7 meters). Testing encompasses pre-test inspections, no-load functional operations, safety device verification, and both static and dynamic load tests with specific acceptance criteria for structural integrity, hydraulic system performance, and operational functionality. Upon satisfactory completion, a certification label plate must be installed indicating equipment ID, test date, expiration date, and testing activity by SRF-JRMC DET SASEBO.