RD POST.pdf

This Overhaul Description document details requirements for overhauling a specific centrifugal pump unit (NSN 4320-01-519-3100, P/N 998-1107-D-04) used in an A/C Refrigeration Plant for the Coast Guard. The comprehensive overhaul services require the contractor to inspect, estimate, and restore the pump and motor to a condition equivalent to a new Carver Pump Company model, with specific technical requirements including complete disassembly, testing, parts replacement, and certification.

Key technical specifications include a 148.0 GPM pump unit with a 7.5 HP motor operating at 3600 RPM, 116.0 FEET total head, and 7-inch impeller diameter. Detailed requirements cover multiple aspects such as replacement of parts (prioritizing OEM components), motor reconditioning, comprehensive testing protocols (including rotational, operational, and hydrostatic tests), calibration of equipment, paint removal and reapplication, and preservation/packaging for a two-year minimum storage period. The contractor must provide detailed test reports, maintain quality assurance standards, and deliver the overhauled pump unit ready for installation, with the Coast Guard reserving the right to determine final disposition of the equipment.