GENERATOR MAINTENANCE Edwards AFB

Amendment / Modification

This addendum provides updated requirements and maintenance procedures for backup generator transfer switches. It details specific equipment models, serial numbers, and their associated electrical specifications (VOLTS, AMPS, PHASE, Hz).

Key updates include:

• Preventive Maintenance (PM) Schedule and Frequency: Outlines quarterly, semi-annual, and annual maintenance tasks, including visual inspections, electrical testing, and operational tests.
• Key Maintenance Procedures: Details visual and physical inspection requirements (enclosure integrity, heat stress indicators, wiring & connections), mechanical maintenance (lubrication, interlocks), manual operation, notification protocols for defects, technical reporting, and cost estimates for "Over and Above" repairs.
• Electrical Testing & Analysis: Specifies requirements for contact inspection and infrared (IR) scanning.
• Operational Testing: Defines procedures for No-Load Exercise, Load Transfer Test, and Retransfer Test.
• Documentation & Compliance: Mandates documentation of all PM activities and submission of reports to 772nd EWOX Maintenance personnel, including specific report content.
• NFPA 110 Requirements: References NFPA 110, the Standard for Emergency and Standby Power Systems, detailing System Classifications (Level 1 and Level 2) and their implications for maintenance strictness. It also outlines specific testing and operational requirements mandated by NFPA 110 Chapter 8, including quarterly testing procedures and annual maintenance items.
• Time Delay Compliance: Specifies minimum and maximum time delays for Engine Start, Transfer to Emergency, Restoration to Normal, and Engine Cooldown as per NFPA 110.

This addendum effectively replaces or supplements previous information regarding transfer switch maintenance, testing, and compliance with NFPA 110 standards.

Bidders should review these detailed requirements to understand the scope of work related to transfer switch maintenance and testing. This information is critical for developing accurate proposals and understanding performance expectations.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Statement of Work (SOW) outlines the requirements for a contractor to perform preventive maintenance on four (4) Caterpillar generators located at Buildings 1020, 1030, and 1030C at Edwards AFB, California.

• Perform preventive maintenance (PM) on Caterpillar Generators.

• Includes Quarterly, Semi-Annual, and Annual Transfer Switch PM requirements.

• PM Level 1 (Annual): Comprehensive inspection, fluid level checks, air filter inspection, fuel system checks, cooling system checks, battery checks, block heater inspection, fan drive inspection, turbocharger inspection, brush inspection, control panel checks, greasing, hot oil sample, safety alarm tests, and load testing (up to 15 minutes).

• PM Level 2 (Annual): Includes all PM Level 1 tasks plus changing crankcase oil, oil filter(s), fuel filter(s), water separator(s), coolant filter(s), and air filter(s).

• PM Level 3 (Every 36 months): Cooling system service including draining and containing coolant, replacing hoses and clamps, radiator pressure cap, engine thermostat, and fan/alternator belts, and refilling with new coolant.

• Annual Loadbank Test: Connect load bank, run for 2 hours, record readings at 30%, 50%, 75%, and 100% load.

• Engine/Generator Inspection and Adjustment (Every 36 months): Adjust valves, check timing, inspect/adjust slip rings and brushes, check generator bearings, inspect wiring, space heaters, coupling, guards, fan drive, meters, and voltage regulator, and test run.

• Engine Battery Replacement Program (Every 36 months): Replace engine cranking batteries, test, and dispose of old batteries.

• One-time Emergency Service: Immediate replacement of a coolant tube casting on Building B1030 generator upon award.

• Place of Performance: Buildings 1020, 1030, and 1030C, Edwards AFB, CA.

• Proposed Maintenance Schedule spans from Basic (April 2026 - March 2027) through Year 4 (April 2030 - March 2031).

• Contractor must be licensed and bonded.

• Use new materials.

• Comply with all applicable Federal, state, county, and local statutes, codes, regulations, and safety requirements.

• Perform initial site survey and coordinate with 445th Test Squadron and 772nd Test Squadron.

• Contractor's Contract Manager (CM) responsible for overall performance.

• Personnel must be experienced and qualified.

• Comply with Environmental Management Systems and hazardous material handling requirements.

• Maintain job site cleanliness and dispose of waste properly.

• Contractor employees must wear appropriate Personal Protection Equipment (PPE).

• Contractor employees must be identifiable and may be subject to background checks and escort requirements.

• Comply with base security regulations, FPCON, and HPCON changes.

• Obtain base identification and vehicle passes.

• Comply with Operations Security (OPSEC) policies and procedures.

• Adhere to safety and health requirements, including OSHA standards.

• Provide a maintenance report for completed work.

• Government will provide access to secure areas, escort, and security monitoring as required.

• Government will provide electricity, water, and sewage.

• Contractor shall not perform Inherently Governmental functions.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the B1030 Generator MX opportunity.

• Generator Identification: The generator listed as B1030 is confirmed to be a CATERPILLAR Model 3516C SN G6A00349.
• Emergency Service Scope: The emergency service for the B1030 generator involves replacing a leaking coolant tube casting from the water pump to the thermostat housing, including associated gaskets and O-rings. The unit will be reassembled, secured, and tested to verify proper operation before being placed back online.
• Maintenance Stop Date: Maintenance on the equipment needing service stopped in October 2025.
• Transfer Switches: Transfer switches have not been maintained.
• Backup Generator for Load Bank Testing: A backup generator is not required when load bank testing is being performed. The 777d will coordinate for power outages during load bank testing.

This Q&A clarifies specific details about the generator and service requirements, which may impact how bidders prepare their proposals or understand the scope of work.

Other / Unclassified

This document is a Wage Determination (No. 2015-5603, Revision No. 29) issued by the U.S. Department of Labor, Employment Standards Administration, Wage and Hour Division, under the Service Contract Act. It lists various occupational classifications and their corresponding minimum hourly wage rates and fringe benefits (Health & Welfare) applicable to federal contracts in Kern County, California.

This wage determination is crucial for bidders responding to solicitations that fall under the Service Contract Act. It establishes the minimum wage and benefit rates that must be paid to employees performing work on the contract. Bidders must ensure their proposals account for these mandated rates to be compliant. The document also outlines:

• Executive Order (EO) 13706: Paid Sick Leave requirements for federal contractors.
• Executive Order 13658: Minimum wage requirements for federal contractors, with specific rates for 2025 and annual adjustments.
• Vacation and Holiday Policies: Standard provisions for paid time off.
• Hazardous Pay Differentials: Additional pay for work involving ordnance, explosives, and incendiary materials.
• Uniform Allowance: Requirements for providing or reimbursing uniform costs.
• Conformance Process: Procedures for classifying and determining wages for occupations not explicitly listed in the determination.

Bidders should carefully review the listed occupations and their corresponding rates to accurately estimate labor costs for their proposals.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Statement of Work (SOW) aims to secure services for the preventive maintenance of four (4) Caterpillar/Cummins generators located at Buildings 1020, 1030, 1030C, and 1040 at Edwards AFB, California.

The contractor shall provide all labor, materials, equipment, transportation, and supervision for preventive maintenance on the specified generators. This includes:

• PM Level 1 - Multi Point Inspection (Annually): Comprehensive inspection, fluid level checks, air cleaner checks, fuel tank inspection, cooling system checks, battery checks, block heater inspection, fan drive and belt inspection, turbocharger inspection, control panel checks, bearing greasing, hot oil sampling, safety alarm tests, and a 15-minute load test.
• PM Level 2 - Annual Service-Major (Annually): Includes all PM Level 1 tasks plus changing crankcase oil, oil filters, fuel filters, water separators, coolant filters, and air filters.
• PM Level 3 - Cooling System Service (Every 36 months): Draining and containing old coolant, replacing hoses, clamps, radiator pressure cap, thermostat, fan belts, and alternator drive belts, refilling with new coolant, and cleaning oil coolers/heat exchangers if needed.
• Annual Loadbank Test (Annually): Connecting a resistive load bank for a 2-hour test duration, recording readings at various load percentages (30%, 50%, 75%, 100%).
• Engine/Generator Inspection and Adjustment (Every 36 months): Adjusting engine valves, checking ignition and injector timing, inspecting slip rings and brushes, checking generator bearings and wiring, inspecting fan drive, and testing the engine generator.
• Engine Battery Replacement Program (Every 36 months): Replacing engine cranking batteries, testing them under load, and disposing of old batteries.
• One-time B1030 Generator Emergency Service: Immediate replacement of a leaking coolant tube casting from the water pump to the thermostat housing.

Services are to be performed at Buildings 1020, 1030, 1030C, and B1040 at Edwards AFB, California. The proposed maintenance schedule spans from April 1, 2026, to March 31, 2031.

• Site Survey: Required prior to work, coordinated with 445th Test Squadron and 772nd Test Squadron.
• Contract Manager: Responsible for overall contract performance.
• Reporting: Maintenance reports required for "In Scope" work. "Out of Scope" findings must be submitted to the Government POC.
• Emergency Maintenance: Required for system failure or trouble.
• Personnel: Must be experienced, qualified, U.S. citizens, and may be subject to background checks. Appropriate PPE required.
• Environmental Protection: Compliance with all applicable federal, state, and local laws, regulations, and standards, including hazardous waste management and pollution prevention.
• Security: Criminal history background checks required for all contractor employees. Base access procedures must be followed, including obtaining Edwards AFB Form 496 for DBIDS cards.
• OPSEC: Compliance with Operations Security policies and procedures is mandatory.
• Deliverables: Schedule of Work (within 5 business days of award), Site Support Visit Request (7 days prior to install date).

Solicitation / RFP / RFQ

This is a Request for Quote (RFQ) solicitation for generator maintenance services at Edwards AFB. The acquisition is set aside 100% for Service Disabled Veteran Owned Small Business (SDVOSB). The North American Industry Classification System (NAICS) code is 811310, with a size standard of $12,500,000.00.

The core requirement is for generator maintenance services, specifically for Caterpillar and Cummins generators. Services include various levels of preventive maintenance (PM LVL 1, 2, and 3), engine/generator inspection and adjustment, engine battery replacement, emergency service, and annual loadbank testing. The Statement of Work (SOW) dated April 21, 2026, details these requirements.

The contract will have a base period of performance plus four option years. Pricing arrangements are primarily Firm Fixed Price, with emergency services being "To Be Negotiated" until required.

• Offer Due Date: May 15, 2026, at 9:00 AM Pacific Daylight Time.
• Questions Due Date: May 11, 2026, at 9:00 AM Pacific Daylight Time.
• Quotes must be submitted via email to jamil.minosa.2@us.af.mil and jenna.jacobson@us.af.mil. Maximum email file size is 10MB.
• Offerors must provide contractor information including SAM UEI, TIN, CAGE Code, Contractor Name, Payment Terms, Point of Contact, Email, Price, Warranty, Offer Expiration Date, FOB Destination, and Delivery Lead Time/Period of Performance Terms.
• A Technical Approach must be included.
• A site visit is scheduled for May 8, 2026, at 9:30 AM Pacific Daylight Time. Attendance requires prior email notification.
• The evaluation factors for award are Best Value, based on Technical Acceptability, Price, and Past Performance.

This requirement is 100% set aside for Service Disabled Veteran Owned Small Business (SDVOSB).

• The solicitation is issued as an RFQ and uses Simplified Acquisition Procedures.
• Offerors are instructed to provide their best terms and conditions in their initial quote, as the government intends to award without discussions.
• DFARS and FAR clauses are incorporated by reference and full text, covering areas such as electronic submission of payment requests, safeguarding covered defense information, and option to extend services/term.