USCGC ALEX HALEY EVALUATION AND REPAIR EXCITATION GENERATOR MOTOR(S)

This is a combined synopsis/solicitation for commercial items/services prepared in accordance with the format in FAR Subpart 12.6 as supplemented with additional information included in this notice. Request for Quotations number is 70Z08525Q0029524 and is issued as a request for quotations (RFQ). This announcement constitutes the only solicitation; quotations are being requested, and a written solicitation will not be issued. This Request for Quotations incorporates provisions and clauses in effect through Federal Acquisition Circular 2005-65 dated January 29, 2013. The NAICS Code is 336611. The small business size standard is 1250. This is a totally small business set aside. All responsible sources may submit proposals that will be considered by the agency. The contract will be awarded on a firm-fixed-price basis using simplified acquisition procedures in accordance with FAR Part 13.5. All responses from interested vendors must be received on/before 0800 Pacific Time, September 3rd, 2025, and will be reviewed by the Government.   

The United States Coast Guard Surface Force Logistics Center has a requirement for the following:

The CTR shall provide parts requested for USCGC ALEX HALEY EVALUATION AND REPAIR EXCITATION GENERATOR MOTOR(S)

CTR shall provide the following:

TECHNICAL SERVICES

USCGC ALEX HALEY (WMEC-282)

EVALUATION AND REPAIR EXCITATION MOTOR(S)

1. Objective. The objective of this document sets forth the receipt, disassembly, inspections, condition/test reports, overhaul/repair, reassembly, testing, preservation, packaging, packing, and marking of the ship’s service diesel generator (SSDG) excitation motor, used on the United States Coast Guard Cutter (USCGC) Alex Haley.

1. References. For any listed references to be distributed, the contractor must be registered in the Joint Certification Program (JCP) through Defense Logistics Agency (DLA) and provide your JCP number and expiration date to the listed point of contact (POC) for this work.
   1. Specification Order of Precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.
   2. Government Documents. The following specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the documents listed here by number and date shall be those in the current Department of Defense Single Stock Point of Specification and Standards (DODSSP) and supplements thereto.
      1. Federal Standard, FED-STD-595C, dated 07/31/2008, Colors Used in Government Procurement 
   3. United States Coast Guard Drawings and Publications. The following specifications and standards form a part of this specification to the extent specified herein.
      1. United States Coast Guard Technical Publication (TP) 0961-LP-059-3010 Ship’s Service Generator, SWBS 311, Hull 282
      2. Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements
      3. Specification Packaging and Labeling SP-PP&M Rev D dated 6/6/11
   4. Commercial Documents. The following documents form a part of this specification to the extent specified herein. The documents shall be the version listed by number and date from the referenced industry organization. Commercial documents may be listed in the Department of Defense Index of Specifications and Standards (DODISS).
      1. Electrical Apparatus Service Association (EASA) Standard AR100, 2020
      2. National Electrical Manufacturers Association (NEMA) MG1, 2011, Motors and Generators
      3. Institute of Electrical and Electronics Engineers (IEEE) Standard 2455, 2023, IEEE Recommended Practice for the Repair and Maintenance of Direct Current Electric Machines
      4. American Society for Testing & Materials (ASTM) D3951-98, dated 2004, Standard Practice for Commercial Packaging
      5. International Standard Organization (ISO) 2953, 1999, Mechanical Vibration, Balancing Machines, Description and Evaluation
      6. Steel Structure Painting Council, SSPC-SP 3, dated 11/01/1982, Power Tool Cleaning

1. Background. This requirement is for the contractor to evaluate and repair the excitation generator specific to Lawrence Scott and Electromotors model Altomag CN 77 AM 375 kVA alternator, exciter generator model MXE24S, denoted as #1 and #2 SSDG on USCGC ALEX HALEY. The exciter generators will be marked accordingly before shipping. The exciters are currently considered inoperable. #2 SSDG exciter must be prioritized and repaired as quickly as possible to support shipboard operational tasking.

1. Tasks. The contractor shall provide services which include but may not be limited to:
   1. General. The Contractor must conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this repair. The requirements of this work apply to all work under the scope of this contract, whether explicitly stated in the work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.
   2. The Contractor shall submit a Receiving Inspection Report to the Coast Guard Contracting Officer (KO), the designated USCG Technical point of contact (TPOC), and other listed points of contacts (POCs), within 2 days of receiving the government furnished property (GFP). The report shall document the make, part number, and/or model. This report should also include digital photographic documentation of the crate and its contents.
   3. Inspections, repair/overhaul, and testing of the exciter shall be accomplished in accordance with the procedures, specifications, references, and standard practices dictated by the referenced technical documentation in section 2 of this statement of work (SOW). The Contractor shall conform to all requirements specified throughout this specification during performance of this contract. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.
      1. The overhaul requirements described herein are considered the minimum necessary and are not intended to replace any procedures, controls, examinations, or tests normally employed by the Contractor to assure the quality of the product.
   4. Initial Inspection. Preliminary disassembly and inspection of the exciter(s) is to determine the total estimated cost to repair, including material, labor, testing, Preservation, Packing and Marking (PP&M) costs. The Contractor’s inspection shall include the minimum requirements below.
      1. Verify and assess all technical specifications and ratings of the exciter using nameplate data and drawings from TP 0961-LP-059-3010, following IEEE Standard 2455, section 5.1.
      2. Perform initial electrical testing per IEEE Standard 2455, section 5.2, and document all results. Do not attempt to run the machine - operational testing should occur only after repairs are completed.
      3. Visually inspect the outer housing for cracks, warping, distortion, and general deterioration.
      4. Disassemble the exciter(s) and remove the rotor and bearings. Inspect and document the condition of field windings, armature, brushes, brush holders, internal wiring, terminals, and commutator. Check tightness and condition of the keyway attached sheave, and shaft. Remove the sheave and inspect the key condition. Document all visible damage and record internal wiring connection details
      5. Measure and record the windings resistances with a milli-ohm meter and the insulation resistance for armature and field windings.
      6. SSDG #1 Exciter. Conduct armature lamination and eddy current loss evaluation according to IEEE Standard 2455, section 8.4, or equivalent EASA technical manual procedures.
   5. Condition Found Report (CFR).
      1. A Condition Found Report (CFR) shall be submitted to the KO, the designated USCG TPOC, and other listed POCs, within 5 days of the completion of the Receiving Inspection Report detailing the repair parts recommended for replacement and a total repair cost. The CFR must be submitted using the form of IEEE Std 2455, Appendix B, or shop equivalent (ensuring all relevant content is included).
      2. The Contractor shall NOT proceed until a firm, fixed price for repair and a delivery schedule are negotiated and authorization to either proceed with repairs, or disposal instructions have been received from the KO. This will be decided upon by the KO after submission of the Open and Inspection Report(s) (OIRs) to the KO, review and recommendations by the TPOC are made, and authorization has been obtained to proceed with repairs from the KO.
   6. Repair Specifics. The repair process must include the elements of this section, in addition to prescribed repairs post-inspection and agreed upon via the CFR process.
      1. The overhaul/repair of the exciter(s) shall be in accordance with the OEM procedures, specifications, references, and commercial standard practices defined by the documentation cited in section 2 of this specification.
      2. SSDG #1 Exciter. Conduct in-depth condition and damage appraisal for the exciter in accordance with IEEE Std 2455, section 6. Evaluate proper wiring, spring pressure, current density, brush geometry, brush rigging, insulating material, and other aspects of the design for the exciter in the as-delivered condition.
      3. SSDG #1 Exciter. Armature insulation breakdown has been observed on at least one coil. Repairs must include complete armature rewinding according to EASA AR100-2020, section 3. Investigate and provide written analysis of the armature insulation failure root cause (up to 32 hours shop labor). Document and provide complete exciter armature design per IEEE Standard 2455, section 8.3.4, including winding diagram.
      4. SSDG #2 Exciter. At least one of the 2 bearings is known to have failed. The Contractor must remove existing bearings, identify replacement bearings, fit and install replacement bearings in accordance with drawings provided in section 2, and bearing OEM guidance. Acceptable replacement bearings have been so far identified as SKF 6310-2RS1 and 6312-2RS1. If an alternate bearing model is proposed by the Contractor, analysis must be provided to demonstrate equivalence and suitability for the application.
   7. SSDG #1 Exciter Overhaul. The Contractor shall repair and reassemble the exciter assembly, using references cited in Section 2 of this specification. The overhaul shall include the following requirements.
      1. Rewind the armature in accordance with EASA AR100, section 3, or equivalent EASA technical manual procedures. Balance the armature in accordance with EASA AR100 section 2.6 and IEEE Std 2455 section 8.8. Repair connections and wiring leads in accordance with IEEE Std 2455, section 8.9 and 8.10.
      2. Conduct neutral point alignment for brush rigging and brush spindles, and verify according to a method described in IEEE Std 2455, Annex F.
      3. Measure the commutator concentricity, surface roughness, mica undercut, and bevel of the commutator bars. Runout should not exceed 0.001 in.
      4. Clean the commutator using with non-abrasive cloth and cleaning compound. Prior to shipment, wrap the commutator using an insulating material layer to ensure brushes are not resting on the commutator during shipment.
      5. Dry windings use heated air blower or circulating current. Ensure the exciter is fully dried before re-installing brushes and operational testing. Measure and record insulation resistance for armature and field prior to re-installing the brushes.
      6. Renew all brushes and springs, with grade and size identical to those removed. Reconnect brushes with their respective terminals, and all internal wiring. Seat brushes using 120 grit sandpaper in accordance with EASA recommended practice.
      7. Clean and mechanically repair the shaft keyway as needed and reinstall the key. Reinstall the sheave for driving the exciter. Renew exciter bearings in accordance with SFLC Std Spec 3020 paragraph 3.4.3.
      8. Assemble the exciter and conduct final static testing of the overall machine in accordance with IEEE 3455 section 8.14 and EASA AR100, section 4. High-potential testing of the rewound armature must be conducted with 850 VDC or 500 VAC.
      9. Measure and record air gap for the exciter at all field poles and interpoles.
      10. Ensure all internal housing surfaces, commutator, insulation, bearing, and shaft are clean before completion of final assembly and commencing operational testing.
      11. Update all relevant measurements for parameters and dimensions affected by the repairs and resubmit form from IEEE Std 2455, appendix B.
      12. Prepare and coat the exterior casing surfaces in accordance with industry standard practices for rotating machine coatings.
   8. SSDG #2 Exciter Overhaul. The Contractor shall repair and reassemble the exciter assembly, using references cited in Section 2 of this specification. The overhaul shall include the following requirements.
      1. Conduct repair of the shaft and fit of the anti-friction bearings in accordance with IEEE Std 2455, section 8.7. Sleeving is the preferred method of repairing the shaft, unless the Contractor recommends otherwise, and receives a written agreement from the Contracting Officer (KO) prior to conducting the repair. Prior to and after repair of shaft, measure and record all dimensional data, inclusive of all accessible shaft sections outside diameters (OD) along length, all length dimensions, concentricity and total indicated runout (TIR) of each OD location.
      2.  Replace both bearings with new sealed bearings according to the approved replacement bearing per adjudication of the CFR. Record and submit part numbers and installation bearing measurements.
      3.  Clean the armature using compressed air and steam or pressurized hot water in accordance with IEEE Std 2455, section 8.1. Clean the field windings with compressed air, vacuum, and wiping with clean, particle-free cloth.
      4.  Measure the commutator concentricity, surface roughness, mica undercut, and bevel of the commutator bars. Repair the commutator surface in accordance with IEEE Std 2455 Appendix C, using honing stones or machine tooling as necessary to achieve required surface finish and runout. Runout must not exceed 0.001 in.
      5.  Clean the commutator using with non-abrasive cloth and cleaning compound. Prior to shipment, wrap the commutator using an insulating material layer to ensure brushes are not resting on the commutator during shipment.
      6.  Dry windings using heated air blower or circulating current, ensure exciter is fully dried before re-installing brushes and operational testing. Measure and record insulation resistance for armature and field prior to re-installing the brushes.
      7.  Renew all brushes and springs, with grade and size identical to those removed. Reconnect brushes with their respective terminals, and all internal wiring. Seat brushes using 120 grit sandpaper in accordance with EASA recommended practice.
      8.  Clean and mechanically repair the shaft keyway as needed and renew the key. Reinstall the sheave for driving the exciter.
      9. Update all relevant measurements for parameters and dimensions affected by the repairs and resubmit form from IEEE Std 2455, appendix B.
   9. Operational Test – Post Repairs. After completion of work, the Contractor must conduct a test run of the exciters on load, and run for sufficient amount of time to establish commutator surface finish film. The exciter shall be driven using a separate motor, so the exciter turns at 1500 rpm. Turn the exciter by hand to verify smooth operation prior to running any driven test. Submit a test report via CFR. Adhere to minimum requirements for testing in accordance with this sections’ subparagraphs.
      1. Use a variable DC power supply to control power to the exciter field, control and monitor exciter output voltage until the exciter outputs 24 VDC open-circuit.
      2. Connect the exciter armature to a load sufficient to load the exciter at a minimum of 1 kW. Run the exciter unloaded for 1 hour, then loaded for a minimum of 3 hours to establish surface film. Inspect and document the appearance of the commutator.
      3. Monitor and record the temperature of the exciter and bearings throughout testing, using temperature sensors or thermal imaging.
      4. Monitor the exciter for vibration and other mechanical issues.
   10. Preservation, Packing, and Marking. The overhauled exciter shall be delivered to the Coast Guard completely assembled and configuration. The Contractor must return to the designated USCG representative via delivery or third-party shipping. The exciter must be packaged to protect from moisture, rain, rust, corrosion, and vibration, which may constitute a standard export wooden box with plastic foam. The exciter shall be completely sealed within a 6 mil (minimum) clear plastic bag, with sufficient units of desiccant to prevent moisture build up and corrosion.
   11. Technical Documentation. Submit all technical documentation to the Contracting Officer (KO), and other POCs, within 5 business days of completion of this specification.

1. Government Furnished Property. Other than noted in this specification, the following will be provided:
   1. None.

1. Security Requirement. Base access is not required. If needed, the contractor shall have a valid government-issued REAL ID (example: driver’s license) and show identification at the security gate. The contractor must coordinate any base access with the designated point of contact ahead of time to ensure administrative processing. A Coast Guard representative from the cutter or Product Line may need to sponsor and escort vendor while on base.

1. Place of Performance. Contractor’s designated repair facility.

1. Period of Performance. 22-Sep-2025.

1. Points of Contact.
   1. USCG-SFLC-LREPL Asset Management: LT Mikael Axelsson, Mikael.J.Axelsson@uscg.mil, +1 571-607-1134

1. Contractor’s Proposal.
   1. Documentation. The Contractor must include at least the following in their proposal for this requirement: basic information (name, company name, contact details, the date, Unique Entity ID), company overview and relevant qualifications, past performance, scope of work for the tasks and deliverables, project timeline, cost including a breakdown of the cost of each item or service, terms and conditions, attachments/bid sheet, description of subcontractors (if any), and signature of the authorized person. The Contractor must demonstrate their qualifications in direct-current (DC) motor repair according to NEMA and EASA standards, and provide the required documentation for evidence of capabilities and experience.
   2. Proposal Evaluation Criteria. Award of this requirement shall be made to the vendor whose proposal offers the greatest value to the government regarding price and ability to meet all technical requirements of the specification.

1. Notes.
   1. Exciter ratings. Exciter data found on the drawing.

1. 1. PLEASE SEE ATTACHMENT FOR MORE INFORMATION AND DRAWINGS