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C1t'TY OF SANTA ANA
<br />RPP NO,: 16-090
<br />WATER WELL, PUMP AND MOTOR REPAIR SERVICES
<br />o. insulation: Windings shall be double - dipped with Class H varnish and baked. Insulation shall be tester,/
<br />phase -to -phase and phase - to- ground at 1000 volts do and yield a one minute test result of 1000 mog-
<br />ohms or better,
<br />f. Final Test. A 1000 volt meg -chm meter shall be used to verify insulation continuity, This reading shall
<br />be documented, After reassembly,_ motor shall be test -run, at full voltage and documentation of current
<br />reading and vibration readings shall be provided to the end user. (NOTE: a 6KV meg. -ohm meter shall
<br />be used on all 4160V motors.) Copper DC resistance tests,, phase -to- phase, on rotor winding from slip
<br />rings shall be performed, If the rewound rotor fails to pass any test, the rotor shall be rejected. The
<br />Contractor shall rebuild and retest until all tests are approved by the City,
<br />8. PUMP RECONDITIONING
<br />a. Disassemble and otearn.
<br />b. Replace seals and ball bearings per EASA Standards. Vendor shall use only manufacturer -
<br />recommended ball bearings and mechanical seals.
<br />a Change oil,
<br />d. Test windings and rewind as necessary.
<br />e. Reassemble and test.
<br />f. Document and photograph all conditions before and after disassembly, seal and ball bearing
<br />replacements and final testing,
<br />9. MACHINE WORK
<br />Machine work shall apply to, but not be limited to, the drilling and tapping of broken bolts, the repairing of
<br />damaged locking rings and stators, the replacing of power cords, power cord assemblies and power cord
<br />connectors and repairs to impellers, covers, volutes, mounting rails, bearing journals, and pump shafts,
<br />1'0.O.UALIFI'CATIO NS'
<br />a. All electric motor repair shops shall be EASA Accredited and shall provide a copy of the certification
<br />upon request by the City. Failure to provide a sub - contractor that is an EASA Accredited Member
<br />as a part of the proposal may be,grounds for proposal rejection.
<br />b.. Contractor or Contractor s. subcantrac[or shall be certified as an UL Facility and shall provide a copy of
<br />the certification upon request by the City.,
<br />c. Contractor shall be responsible for obtaining all O.E.M. technical documents, drawings and parts when
<br />necessary.
<br />d, Contractor shall have all engineering, design, metalzing, welding, heat treating, machining, balancing,
<br />calibrating and testing capabilities necessary to completely refurbishirewind electric motors.
<br />e, Equipment used for inspecting, calibrating and testing pumps and motors shall be up -to -date and have
<br />calibration certificates, less than on-e year old, traceable to NEST standards where applicable.
<br />11, DOCUMENTATION
<br />All work performed to recondition, repair and/or rewind motors shall be supplemented with reports that
<br />verify all processes to accomplish each job order. Documentation shall include, but is not limited to, the
<br />following:
<br />a. Pro- Disassembly Testing report for all activities as described.
<br />b. Photo documentation of existing condition prior to fulfilling each described criteria of the disassembly
<br />test,
<br />G. Motor Disassembly report., including photo documentation before and after cleaning.
<br />25C -58
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