Specifications include, but are not limited to: Contractor shall provide maintenance and/or repair services on Gardner Denver blowers operating at County Water Treatment Facilities (WTF). Services performed shall be in accordance with manufacturer’s Operation and Maintenance manual guidelines for the specific blower model: Maintenance (Group A-Centrifugal) – Contractor shall perform field maintenance as requested by County including, but not limited to, bearing lubrication, paint touch up, sight glass and air filter element replacement, and vibration analysis/remediation as needed. County will perform general maintenance such as oil changes on these blowers. Contractor may replace general maintenance items while troubleshooting and/or performing field repair as requested by the County. Maintenance (Group B-Positive Displacement) – County will perform all general maintenance on these blowers. Contractor may replace general maintenance items while troubleshooting and/or performing field repair as requested by the County