SOW_5_Aspirator_Housing_S100-2MT4A1A2 20 Nov 2024-R.docx

STATEMENT OF WORK 5 – ASPIRATOR HOUSING

Statement of Work Repair, Recondition and Paint: Automated Surface Observing System (ASOS) Temperature-Dew Aspirators

ASN: S100-2MT4A1A2, NSN: 4140-01-411-7107

Version: November 20, 2024

Description: The Contractor shall repair, recondition and paint the Temperature-Dew Aspirator to "Like New" operating condition, including cosmetic appearance in accordance with National Weather Service specifications. The repair, recondition and paint price shall include the parts, materials, labor, inspection and return shipping necessary to return the Temperature-Dew Aspirator to operational specifications. Repair materials or specifications differing from the NWS source specification must be approved by the National Weather Service prior to use.

Definition:

1. Supplies: includes but is not limited to raw materials, components, intermediate assemblies, end products, and various supplies.

1. Repair and Reconditioning: As outlined in Description of Work paragraph below.

1. “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, missing, or non-functioning parts.

Government Furnished Equipment: None.

Government Furnished Data: None.

Vendor Furnished Equipment: Vendor will supply all painting materials, new banana plugs (Abbatron / HH Smith P/N: 145) and new fans (EBM-PAPST P/N: 4606X). The paint used should be similar to Sherwin-Williams F8W2030 (WAEM-511 GMC White).

Recommended Equipment and Supplies: None.

Description of Work – Work Procedures: Inspect the S100-2MT4A1A2, Temp-Dew Aspirator for major defects (damaged or cracked housing). If none found, proceed with the repair. If major defects exist that would prevent the repair of the unit, contact the Contracting Official with any comments, questions, or concerns.

The following steps may be accomplished in any order deemed necessary by the vendor:

Completely disassemble Aspirator assembly. Note the location and the order sequence of every part removed. It will be critical that during the assembly process the parts are assembled in the correct order ensuring nylon washer are properly installed (preventing metal to metal contact).

Clean parts as needed and remove dents. Strip, prep, prime and paint any painted parts as needed. Care should be taken not to paint any grounding surfaces or authorized labels. Quality should be considered “Like New” and meet NRC Final Acceptance standards.

Inspect electrical wiring, connectors and components for corrosion, physical damage, electrical damage, or excessive discoloration due to overheating. Inspect brackets and welds for breaks and cracks. Repair or replace unacceptable parts as needed.

Replace the fan with specified type (PAPST 4606X model). Fan must be installed with the flow in the correct direction.

Replace the 2 banana jacks and wiring as needed. Ensure all hardware and nylon washers are installed in the correct order.

Reassemble the unit, replacing all missing, corroded, or worn hardware. Care should be taken to install all parts in the correct order. Verify fan spins freely. Ensure lanyard and thumb-screw are present and in good condition.

Apply 115VAC and verify fan spins. Air Flow direction must be from bottom of the aspirator and exhausted out the top, verify complete Temperature-Dew Aspirator unit operational functions.

Warranty Terms: The Contractor 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, reconditioned and painted units will be inspected for material workmanship and tested for operational performance at the NRC. To meet the material workmanship requirements, the units will need to be in a “Like New” operating condition for example the unit’s paint job, connectors and associated hardware. All connectors and pins will be inspected to ensure no corrosion is present and the correct parts are installed. The NRC’s Inspection Branch will verify units meet both material and operational requirements and test each unit for proper and accurate functionality in the ASOS system and/or a bench test. The Branch will verify new fans and banana plugs have been installed in the Aspirator and the fan is operating properly. Any inspected item that does not meet acceptance criteria will be returned to the vendor for rework at no additional cost to the government.

Deliverables: Each repaired, reconditioned and painted Temperature-Dew Aspirator, 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 Official 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:

WSRB Repair Branch Review: Marcus Stevenson, Branch Chief, November 20, 2024 TI&MR Branch Review: Gregory Flores, Branch Chief, November 20, 2024