SOW 8 Combined.pdf

PDF 639 KB Posted Mar 18, 2025

Attached to: NEXRAD Automated Surface Observing System (ASOS) Equipment
Solicitation number: REQUIREMENTS-25-0597
Issued by: Department of Commerce National Oceanic and Atmospheric Administration

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Written by GovTribe AI · Mar 18, 2025

This document is a Statement of Work (SOW) for repairing and reconditioning a NEXRAD Direct Current (DC) Servo Motor with Asset Number R400-2A1A1B1 and NSN 6105-01-394-5305. The contractor is required to restore the motor to "Like New" condition according to National Weather Service specification drawing 2200220 Revision L, which includes comprehensive repair, replacement, and inspection procedures. Key requirements include replacing armature brushes, shaft bearings, tachometer components, and conducting thorough inspections of internal and external motor elements.

The SOW specifies a 1-year warranty against material workmanship and operational faults, beginning after final equipment inspection and acceptance. The repair and reconditioning price must cover parts, materials, labor, inspection, and return shipping to return the motor to operational specifications. The National Reconditioning Center (NRC) in Grandview, MO will receive the repaired motors, and the vendor must package them to withstand transportation by ship, rail, truck, and aircraft. Each repaired motor must be accompanied by a detailed Repair Report documenting repair, reconditioning, inspection results, and failure analysis.

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STATEMENT OF WORK 8 – DC SERVO MOTOR

Statement of Work Repair and Recondition: NEXRAD Direct Current (DC) Servo Motor

ASN: R400-2A1A1B1, NSN: 6105-01-394-5305

Version: January 7, 2025

Description: The Contractor shall repair and recondition the DC Servo Motor to "Like New" operating condition, including cosmetic appearance in accordance with National Weather Service specification drawing no. 2200220 Revision L. The repair and reconditioning price shall include the parts, materials, labor, inspection and return shipping necessary to return the DC Servo Motor to operational specifications. Repair materials differing from the source specification must be approved by the National Weather Service prior to use.

Definition: “Like New” Condition means reconditioned to the listed specification to meet all applicable electrical, mechanical, and cosmetic specifications and Engineering documentation, including the replacement of damaged or missing non-functioning parts.

Government Furnished Equipment: None.

Government Furnished Data: specification drawing no. 2200220 Revision L (when requested)

Vendor Furnished Equipment: As required to accomplish repair and reconditioning actions.

Recommended Equipment and Supplies: None.

Description of Work – Work Procedures:

The repair and reconditioning shall include the inspection, the replacement and warranty of all worn or damaged parts or components. Some parts and components are required to be replaced with every repaired and reconditioned unit. They are listed under “Replacement”. Other items may need repair or replacement on an individual basis dependent on the findings of the inspection and testing of the part.

Items requiring inspection and test for each repaired motor are also listed below under “Inspection/Test”. All motors are to be cleaned and painted to like new condition before return to the

NRC.

(Note: Refer to drawing 2200220 Rev L, item 2.9.3, when replacing the brushes holders and tachometer assemblies.)

Replacement:

1. Replacement of armature brushes, brush holders and caps.

2. Replacement of shaft bearings, oil seals and seal retaining springs.

3. Replacement of tachometer brushes.

Inspection

4. Inspection/ test/repair/replacement/cleaning of the tachometer. (As required)

5. Inspection/repair/replacement of tachometer brush holder assembly. (As required)

6. Inspection and replacement of housing magnets. (As required)

7. Inspection and rewinding/replacement of the armature. (As required)

8. Inspection/test/repair/replacement of internal wiring, external connectors, connector caps and chains.

(As required)

9. Inspection/replacement of the motor housing (including magnets), front plate and motor end cap.

(As required)

STATEMENT OF WORK 8 – DC SERVO MOTOR

10. Ensure thermostat is disconnected (if installed) and pins J1C and D are attached to chassis/ground).

11. Inspection/replacement/reattach identification and serial number plate. (As required)

12. Inspection/recondition/replacement of motor shaft to include key slot in accordance with dimensions listed in drawing 2200220 Revision L, Figure 1.

All Motors:

13. Cleaning and painting.

Warranty Terms: Vendor will provide a 1-year warranty against material workmanship and against faults occurring during operation. This 1-year warranty will begin after passing the final equipment inspection and acceptance for stock.

NRC Final Acceptance: All repaired and reconditioned DC Servo Motors are subjected to Quality assurance testing/inspection and will be returned for corrections if discrepancies are found in accordance with specification drawing no. 2200220 Revision L. The procuring activity and/or the government reserves the right to perform any of the inspections or witness tests set forth in this specification where such inspections/tests are deemed necessary to assure the motor conforms to the prescribed requirements. Any inspected item that does not meet the acceptance criteria will be returned to the vendor for rework at no additional cost to the government.

Deliverables: Each repaired and reconditioned DC Servo motor, by serial number, shall be supplied with a Repair Report documenting the repair, reconditioning and inspection to include results of all tests and failure analysis.

Shipping Address:

NATIONAL RECONDITIONING CENTER (NRC)

14200 MERRITT RD.

GRANDVIEW, MO. 64030

Transportability: Vendor is responsible for returning repaired products in a shipping container designed to withstand the vibration and shock encountered during transportation by ship, rail, truck, and aircraft. The units shall be packaged to prevent damage to include: physical, electrical, mechanical, cosmetic, and the units shall not be damaged or lose performance capability.

Final Note: When unforeseen problems arise that may need clarification, please contact the Contracting Officer who will notify the NRC. If the unit has any problem that prevents a quality repair, do not work on the item until the issue can be resolved.

NRC Reviewed:

NEXRAD Repair Branch Review: Scott Potterton, Branch Chief, January 7, 2025 TI&MR Branch Review: Gregory Flores, Branch Chief, January 7, 2025

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SOW_8_01-07-25 - DC Servo Motor-R

SOW_8_Drawing_2200220-L

File details come from the government source that posted it. Updated Mar 18, 2025.