# Geneva Civicplus #386

Replace and test a Vulcan RATO-S 331Y coupling at the Geneva Generation Facility

**Posted:** October 16, 2026
**Respond By:** November 02, 2026
**Identifier:** 386
**NAICS:** 811310

The City of Geneva is seeking qualified field service to replace and test a coupling at its electric generation facility.
- **Government buyer:** City of Geneva Public Works Department, Electric Department/Electric Utility, Geneva, Illinois.
- **OEMs and named equipment:** **Vulcan** RATO-S 331Y coupling; **Caterpillar** GCM34-16 prime mover; and **LeRoy Somer** SA 58 UL105 generator. The generator maker is also spelled “LeRoy Solmer” in an attachment.
- **Products identified (not all are contractor-supplied):** One Vulcan RATO-S 331Y coupling, provided by the City; one Caterpillar GCM34-16 prime mover and one LeRoy Somer SA 58 UL105 generator are the equipment involved in the work.
- **Requested service:** One coupling replacement project. Contractor supplies qualified technicians, labor, tools, alignment tooling, and vibration-recording equipment to remove the failed coupling, inspect and clean related flanges and hardware, install and align the City-provided replacement, and reassemble the equipment.
- **Testing and deliverables:** Run the engine at full load, record vibration readings, and submit work and test reports. Follow applicable Caterpillar, LeRoy Somer, and Vulcan manuals and instructions.
- **Notable requirements:** The City provides generator lock-out/tag-out and isolation. Contractor provides a one-year warranty against defects in workmanship, materials, and finishes and must comply with prevailing-wage requirements.

### Description

The project is to replace a Vulcan RATO coupling at the Geneva Generation Facility. Work includes disassembly and removal of the existing coupling, installation and reassembly of the City-provided replacement, alignment, and functional testing, including a full-load engine test with vibration readings. The contractor must provide labor, tooling, alignment equipment, and vibration-recording equipment; the City will provide the coupling and lock-out/tag-out and generator isolation. Work must follow the applicable manufacturer manuals and instructions, and reports of work and testing are required.

[View original listing](https://www.geneva.il.us/bids.aspx?bidID=386)