Inactive

ITEM 1: Vaneaxial Fan, Renew 1. SCO 1.1 Intent. This work item describes the requirements for the Contractor to renew vaneaxial fan listed in the Table 1 with GFP on the Cutter. TABLE 1 – vaneaxail fa... ITEM 1: Vaneaxial Fan, Renew 1. SCO 1.1 Intent. This work item describes the requirements for the Contractor to renew vaneaxial fan listed in the Table 1 with GFP on the Cutter. TABLE 1 – vaneaxail fan RENEW SYSTEM / FAN NUMBER model number LOCATION dimension / WEIGHTS coast guard DRAWING SS-53 / 2-26-2 XA11A4W5 Fan Space 2-26-2-Q 40 Inches X 36” Dia/ 934 Lbs. 750-WSML-512-019 1.2 Government-furnished property. MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED COST ($/UNIT) Y Fan Vaneaxial, 12.5 HP, 1800/1200 RPM, 440 Volt / 3 Phase 60 Hz 015614145/ XA11A4W5 1 ea. 24030.00 2. REFERENCES Coast Guard Drawings Coast Guard Drawing 418A-WMSL-100-001, Rev B, General Arrangements Coast Guard Drawing 418A-WMSL-801-001, Rev A, Booklet of General Plans Coast Guard Drawing 750-WMSL-512-001, Rev E, HVAC System Diagram Coast Guard Drawing 750-WMSL-512-014, Rev B, Vent & Air Cond Arr 2nd Dk Unit 1330 (ASC512017) (UNSIGNED) Coast Guard Drawing 750-WMSL-512-053, Rev A, HVAC Equipment List (ASC512001H) Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2020, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2020, Requirements for Preservation of Ship Structures Surface Forces Logistics Center Standard Specification 3041 (SFLC Std Spec 3041), 2020, Shipboard Electrical Cable Test Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2020, Shipboard Electrical Cable Removal, Relocation, Splice, Repair, and Installation Coast Guard Technical Publication (TP) 7148, 24-AUG-07, Standard XA Vaneaxail Fan Other References Code of Federal Regulations (CFR) Title 29, Part 1915, Subpart E, Sep 2015, Scaffolds, Ladders and Other Working Surfaces International Standard Organization (ISO) 2953, 1999, Mechanical Vibration, Balancing Machines, Description and Evaluation 3. REQUIREMENTS 3.1 General. 3.1.1 CIR. None. 3.1.2 Tech Rep. Not Applicable 3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection).. 3.1.4 Interferences. The Contractor must handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the following: Electrical wiring Piping Ventilation Duct Work Overhead Lights Van Axial Fan Assembly Foundation 3.1.5 Electrical requirements. The Contractor must accomplish all electrical work in accordance with SFLC Std Spec 3042, and test cables in accordance with SFLC Std Spec 3041. 3.1.6 Work locations. The concerned work area is listed in Table 1. See Coast Guard Drawings and Tech Pub in Section 2 above for guidance, locations, and details. 3.1.7 Scaffolding. The Contractor must, in accordance with CFR Title 29, Part 1915, Subpart E, erect suitable staging or scaffolding, as required, to facilitate work. The Contractor must provide hoists to remove and re-install the vaneaxial fan assembly in Table 1. 3.1.8 Rigging. The Contractor is responsible for rigging of all and necessary tools, materials, including GFP form and to the pier as well as from and to work compartment. When necessary, the Contractor must provide crane service to move materials, tools and GFE to and from pier, deck and work compartment. The Contractor may coordinate with COR if Coast Guard crane is available to rig equipment and tools onto the cutter. NOTE Coast Guard personnel will operate all shipboard machinery and equipment. 3.1.8 Operational test, initial. Prior to commencement of work, the Contractor must witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition. Submit a CFR. 3.2 Vanaxial fan removal. Vanaxial fan installation is shown on the following Coast Guard Drawings: Coast Guard Drawing 750-WMSLl-512-014 3.2.1 The Contractor must disconnect electric cables to vaneaxial fan in accordance with the SFLC Std Spec 3042. Pull back cables and temporarily insulate cable ends for safety. Record wiring information for later re-connection and submit a CFR. 3.2.2 The Contractor must remove vaneaxial fan from ventilation duct in accordance with Tech Pub 7148. The Contractor must temporary support ventilation duct on each side of removed vaneaxial fan. 3.2.3 The Contractor must remove vaneaxial fan from mounting in accordance with drawings referenced Para 2. 3.2.4 The Contractor must vacuum clean each side of ventilation duct work to a distance of three feet on either side of the vaneaxial fan assembly installation. 3.2.5 The Contractor must inspect vibration mount of vaneaxial fan and submit a CFR. 3.3 Vaneaxail fan renewal. The Contractor must renew vaneaxial fan with GFP using new stainless steel hardware in its original operating condition in accordance with TP 7148 and Coast Guard Drawings listed in the Reference 2. 3.3.1 The Contractor must fabricate new flexible duct assembly in accordance with Coast Guard Drawing 750-WMSL-512-004. 3.3.2 The Contractor must re-mount vaneaxial fan to its original operating condition in accordance with Coast Guard Drawings referenced in Para 2 and TP 7148. 3.3.3 The Contractor must reinstall vaneaxial fan with new Contractor-furnished rubber vibration dampers, gaskets and/or resilient mounts and fasteners as applicable in the ducting. Restore all ventilation ductwork to original configuration as shown on Coast Guard Drawing listed in Reference 2. 3.3.4 The Contractor must re-connect cables to electric motor with previously recorded information in accordance with SFLC std Spec 3042. 3.3.6 The Contractor must test cables in accordance with SFLC Std Spec 3041 and submit CFR. 3.4 Coatings. Prepare and coat the fan casing surfaces in using the system specified for “Machinery, Operating Temperatures Under 200 Degree F, Unmachined Surfaces” in SFLC Std Spec 6310, Appendix B (Cutter and Boat Interior Paint Systems). Select finish/top coat color to match existing adjacent surfaces. Submit CFR. 3.5 Verification. Prior to re-energization, a final closeout inspection must be performed in the presence of the Coast Guard Inspector. The contractor must submit a signed completed copy of the inspection checklist to the Coast Guard Inspector for affected by the work. The checklist must contain, at a minimum, the following attributes: Verification that each disturbed electrical connection is tight and properly terminated. Certification that no foreign material was found in the panel sections affected by the work. Certification that all rerouted wiring is properly labeled and that all new/rerouted cables are properly marked. Perform a phase rotation test on each disturbed circuit. Correct any improperly phased wiring and repeat the test. No loose hardware and Nothing lose in the duct work Before energization, Impeller rotates freely Submit a CFR. NOTE Coast Guard personnel will operate all shipboard machinery and equipment. 3.6 Operational test – post repairs. After completion of work, the Contractor must thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR. 3.6.1 Verify the motor runs quietly for an hour and without excessive vibration. 3.6.2 Verify direction of air flow. 3.7 Touch-up preservation. The Contractor must prepare and coat all new and disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, paragraph 3.1.13 (Touch-ups and minor coating repairs). 4. NOTES This section is not applicable.