Agmt18 Commercial Pump & Mechanical, Inc.

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AN11 NO 1. Scope of Work Contractor shall repair and maintain the City's storm water pumps, motors and related apparatuses. Contractor will furnish all parts, materials, labor, equipment, tools, and fuel necessary to complete the work. Contractor is also responsible for disposal of any unusable material and debris as a result of the work. Task 1: Preventative Maintenance (PM) A. Contractor will perform PM inspections for storm water pumps and motors. At minimum, PM will include: • Checking electrical condition of insulation on power cable and on all phases of motor; • Checking for any loose or faulty electrical connections within the pump control panel; • Checking resistance between stator windings; • Checking voltage supply between all phases of the electrical control panel; • Checking voltage balance between all phases on the load side of the pump control with pump on; • Checking amperage draws on all phases of the pump motor; • Checking condition and operation of motor thermal protectors control system (if so equipped); • Removing pumps and motors from pump station for physical inspection; • Checking condition of upper shaft seals (inspect condition of motor housing); • Checking condition and operation of leakage detector (if so equipped); • Checking lowershaftseals (inspect condition of oil); • Changing oil if needed (cost of oil included); • Checking for worn or loose impeller; • Checking all impeller wear rings; • Checking for noise in upper and lower bearings; • Checking physically fordamageof pump and power cable; • Cleaning, resetting, and checking operation of level sensors; • Checking for correct shaft rotation; • Reinstalling pump and motors, and checking forleakage at the discharge connection; • Testing pump operation cycle; • Checking operating of valves and pipes in station; and • Any work not specifically mentioned, but which is needed to make the maintenance complete within the intent of this specification shall be performed without additional cost. B. Contractor shall replace parts with the same make and model as the original component, unless Contractor obtains written authorization from City staff. C. Contractor will provide a written report of all findings, results, and work performed for each pump station upon completion of PM. D. Contractor will complete PM inspections for all assigned storm water pumps and motors before May of each year. E. Contractor will contact City staff to arrange for pump station site access to perform PM inspections. Contractor will perform all PM inspections during the workweek (Monday -Friday), between 7:00 a.m. and 4:00 p.m. If Contractor is called away and cannot complete the scheduled PM, Contractor will return the next working day. F. Contractor will notify City staff immediately upon discovering any emergency or immediate repairs needed to a pump during the course of PM inspections. REV: 10-04-19 EI ATN/AGR.Amend No. 1/Commercial Pump & Mechanical, Inc. (Page 3 of 6)