# Davenport Ionwave #27-28 Addendum 1

Generator inspection and preventive maintenance for City of Davenport facilities

**Posted:** October 26, 2026
**Respond By:** November 12, 2026
**Identifier:** 27-28 Addendum 1
**NAICS:** 811310

The City of Davenport is seeking a contractor to maintain and inspect generators at City-owned facilities.
- **Buyer:** City of Davenport, Iowa — Public Works Department, Facilities Maintenance.
- **OEMs named:** **Cummins, Onan, Kohler** (spelled “KOEHLER” on some entries), **Caterpillar, and Generac**. The solicitation requires OEM replacement parts.
- **Scope:** Annual full-service maintenance and a follow-up inspection six months later for each of 16 generators. Annual service includes oil sampling and testing; the initial annual service also includes a written life-expectancy assessment with replacement or overhaul recommendations.
- **Equipment:** Generator models/identifiers include 6BT5.9-GEN (DR (126)), DNAF-3384306, DFED 500 KW, 100RE02DB, QXS15-G9, GNTA14-c431, 4B3.9GS, OSK23-G7, D500GC, SD0300GG, DGCA50 KW, DGBB 35 KW, 20 ROZJ 81, 20 ROZJ61, C30N6, and C36N6. Each has one annual service and one six-month inspection line.
- **Other work and requirements:** Cleaning, lubrication, adjustments, repairs, safety testing, service reports, and emergency call-out support. Initial inspections are due within 90 days of award. The contractor must have a service office within a one-hour drive of the Public Works facility, respond to emergency requests within one hour during normal business hours, provide after-hours emergency service, and return failed equipment to service within two regular working days.
- **Additional terms:** Initial one-year term with four annual renewal options. Pricing is requested for year one, with optional annual increases for years two through five. Police Department technicians require background checks, with the City paying the check cost.

### Description

The City of Davenport, Iowa is seeking bids from qualified vendors to inspect, service, and perform preventive maintenance on generating equipment at various City-owned properties. The work includes an annual full service and a six-month inspection, with services such as cleaning, lubrication, adjustments, repairs, testing, and oil sampling. The anticipated contract term is one year with four annual renewals; the submitted price is for one year, with optional year-over-year increases for years two through five. Bids must be submitted through the City of Davenport e-bidding system.

[View original listing](https://davenport.ionwave.net/PublicDetail.aspx?bidID=3755&SourceType=1)