1. Disassembly and inspection 2. Steam cleaning all parts 3. Replacing bearings as needed. 4. Re-insulate and oven bake. 5. Dynamically balance rotor. Variable speed units must be balanced as complete system (motor and drive) at final assembly. 6. Check rotor and shaft run out. 7. Perform core loss test on stator. 8. Perform high current and single- phase rotor test. 9. Reassembly of motor after repair 10. Resurfacing of collector rings if applicable. (Variable Speed Units) 11. Remove all old surface paint, rust, and/or corrosion to bare metal and apply primer. 12. Paint with AUTHORITY approved color. 13. Motor tests to include: a. Surge Test b. High Potential Test c. Megger Test d. Final Assembly Vibration Analysis (Owner Verified) i. Overall Vibration: Between 10 HZ and 10, 00 HZ less than o.1 inches per second. ii. Readings must be taken horizontally, vertically, and axially utilizing a FFT Spectrum Analysis Analyzer with certified technician. iii. Provide computer generated vibration analysis reports.
