On - Call Turblex Blowers Services

2026-11-03

The City is seeking a qualified company to provide on - call services for a duration of five years for the maintenance of four Turblex Blowers ( Model KA80SV - GL500 , S / N : 7369 , 7370 , 8768 , 8769 ). The selected contractor shall supply all necessary labor , tools , equipment , testing instruments , materials ( unless otherwise specified ), transportation , accommodation , and supervision required to perform the blower services as requested . Each service must include all soft parts and seals necessary to complete the work comprehensively . Class I service is scheduled approximately every 18 , 000 hours of operation , whereas Class II service occurs every 36 , 000 hours . A separate purchase order will be issued for each blower service request . Unless otherwise stated , all work shall be performed during standard business hours from 7am to 5pm , Monday through Friday . These services will include the following : 1 . Class I service to include the following as recommended by the OEM : • Repeat manufacturers recommended monthly and annual inspections • Record compressor operating data prior to servicing the unit • If compressor is equipped with Howden local inlet air filter / silencer , remove shroud from rear of filter assembly or remove complete filter assembly to allow access to inlet of compressor . If inlet is piped , remove spool piece to provide maintenance access . • Disassemble compressor air - end , including variable vane system , inlet housing , spiral casing , contour ring , impeller / rotor and diffuser plate • Inspect and clean impeller • Inspect , clean and lubricate all parts in the variable vane system • Check variable vane geometry • Replace flexible seals ( O - rings ) • Reassemble compressor and record critical clearances • Clean inlet silencer • Reassemble inlet air filter assembly or inlet piping . • Check coupling alignment before re - starting • Perform an operational test of the unit for 4 hours minimum . Record operating data when unit is at a steady - state condition . Correct any discrepancies . • Test operation of inlet guide vane or speed control algorithm , if equipped • Any typical replacement parts for a Class I service • Email assessment of findings and any recommendation ...

North Carolina

2026-05-05