UPDATED SOW Aux Exhasut Fan Rebuild.docx
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- Solicitation number
- 52000QR260027907
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This is a Statement of Work (SOW) for the complete overhaul, rewind, mechanical repair, testing, and reconditioning of one Vane Axial Ventilation Fan for USCGC Northland. The contractor must provide all labor, materials, equipment, and transportation for pick-up, rebuild, test, and delivery to US Coast Guard Base Portsmouth, Virginia (4000 Coast Guard Blvd, Portsmouth, VA 23703). The motor specifications are Part Number XA12A4W6, Identity Number 2ZY872354A7, rated at 10 horsepower with dual-speed operation (1750 RPM high speed, 1150 RPM low speed), 3-phase 440VAC 60Hz, with a 12-inch drive motor diameter and 24-inch by 37.5-inch fan housing.
The contractor shall execute the rebuild in six sequential phases: (1) transportation and initial disassembly including motor and fan blade removal; (2) cleaning and detailed inspections of electrical and mechanical components with documentation; (3) complete AC stator rewinding with high-grade insulation, dip and bake process, endbell machining, and new bearing installation; (4) dynamic balancing of the rotating assembly and marine-grade coating of the housing; (5) motor reassembly, electrical testing, run testing at rated voltage, exterior painting, and final assembly into the housing; and (6) delivery to Coast Guard Base Portsmouth. The contractor must submit a formal Service Report including as-received and final electrical/mechanical test reports, dynamic balancing certificate, and no-load run test documentation. All new parts must meet or exceed original equipment manufacturer specifications. The entire scope, including pick-up, overhaul, testing, and delivery, must be completed within 28 calendar days of contract award (Period of Performance: 28 September 2026 to 9 October 2026). The Point of Contact is CWO4 Steven Van Hevelingen, and the Contracting Officer Technical Representative is LT Parker Brunkala.
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STATEMENT OF WORK (SOW)
Vane Axial Ventilation Fan Rebuild & Reconditioning for USCGC Northland
1.0 Objective & Scope of Work
The objective of this Statement of Work (SOW) is to define the requirements for the complete overhaul, rewind, mechanical repair, testing, and reconditioning of one (1) Vane Axial Ventilation Fan. The contractor shall provide all labor, materials, equipment, and transportation necessary to pick up, rebuild, test, and deliver the completed fan assembly back to the Coast Guard.
2.0 References
2712_512_A
901-WMEC_514_2_1-L
SFLC Std Spec 6310
3.0 Places of Performance & Transportation
Pick-up Location: US Coast Guard Base, 4000 Coast Guard Blvd, Portsmouth, VA. 23703 Drop-off Location: US Coast Guard Base, 4000 Coast Guard Blvd, Portsmouth, VA. 23703
4.0 Technical Requirements & Sequence of Work
Motor Details:
P/N: XA12A4W6
IDENT. NO. is 2ZY872354A7 3P 440VAC 60Hz HP rating: 1750 rpm in High and Slow: 10 hp 1150 rpm VANE axial drive Drive motor diameter 12” Fan housing 24”x37.5”
The contractor shall perform the rebuilding services in accordance with the following logical phases:
Phase I: Transportation & Initial Disassembly
Pick-up: Safely load and transport the complete vane axial ventilation fan assembly from Coast Guard Base Portsmouth, VA, to the contractor's repair facility.
Fan Disassembly: Disassemble the external ventilation housing and remove the internal motor and fan blade/rotating assembly.
Motor Disassembly & Initial Electrical Testing: Disassemble the AC motor assembly. Perform preliminary electrical insulation and winding tests. Document all "as-received" electrical conditions and test results.
Phase II: Cleaning & Detailed Inspections Electrical Inspection: Perform a detailed electrical inspection of the stator windings, connections, and terminal box. Document all findings.
Mechanical Inspection: Perform a comprehensive mechanical inspection of all physical components. Document all key measurements.
Steam Cleaning & Drying: Clean all disassembled metal parts, housings, stator, and components to remove grease, dirt, and carbon dust. Bake dry all parts in a controlled industrial oven.
Phase III: Motor Rewinding & Mechanical Repairs
AC Stator Rewinding: Perform a complete rewind of the AC stator using high-grade insulation materials to match or exceed original equipment manufacturer (OEM) specifications.
Dip & Bake Process: Submerge (dip) the newly rewound AC stator in high-quality insulating varnish, and bake dry in an oven to ensure optimal environmental sealing and winding stabilization.
Stator Clean-up: Clean up the stator core and frame after the rewind, dip, and bake cycle to remove excess varnish and ensure clean mating surfaces.
Endbell Machining: Bore and sleeve the motor endbells to restore them to the proper OEM tolerances and ensure exact alignment.
Bearing Replacement: Furnish and install brand-new, premium-grade bearings matching the original specifications.
Phase IV: Balancing & Housing Reconditioning
Dynamic Balancing: Dynamically balance the complete rotating assembly. Document the final balancing results.
Housing Preparation & Coating: Prep, prime, and paint the interior and exterior of the ventilation housing with marine-grade industrial coatings.
Phase V: Assembly, Testing, & Finishing
Motor Reassembly & Testing: Reassemble the motor with the new bearings. Perform post-assembly electrical tests and document the results.
Run Testing: Test run the motor at its full rated operating voltage. Monitor and document critical performance results, including no-load current, vibrations, and operating temperature.
Motor Painting: Prep, prime, and paint the exterior of the motor using industrial-grade protective coatings.
Final Assembly: Reinstall and align the reconditioned motor into the prepped ventilation housing. Check overall clearances and rotation.
Phase VI: Prep & Delivery
Delivery: Transport the fully reconditioned vane axial fan assembly to Coast Guard Base Portsmouth, VA.
5.0 Deliverables & Documentation
The contractor must submit a formal Service Report upon delivery of the fan, which must include the following documentation:
"As-Received" & Final Electrical and Mechanical Test Reports.
Dynamic Balancing Certificate
No-Load Run Test Report: Voltage, current draw, vibration levels, and temperature readings.
6.0 Quality Assurance & Standards
New parts, particularly bearings and wiring insulation, must meet or exceed OEM specifications.
7.0 Period of Performance
The contractor shall complete the entire scope of work, including pick-up, overhaul, testing, and final delivery, within 28 calendar days of receiving the official contract award. Period of performance will be 28SEP26-09OCT26.
POC:
CWO4 Steven Van Hevelingen Steven.c.vanhevelingen@uscg.mil
Contracting Officer Technical Representative (COR):
LT Parker Brunkala, EO Cell: 206-827-3606 Email: Parker.T.Brunkala@uscg.mil
File details come from the government source that posted it. Updated .