ERM was engaged by a large Gold Mine in the Goldfields Region of Western Australia to completely overhaul their Ball Mill Motor.
The motor has come out of service due to bearing failure and arrived at ERM for a complete strip and assessment with the overhaul completed.
In consideration of the failed bearings, the motor failure modes were identified via an RCA. ERM implemented the RCA actions and repaired the motor to a standard that exceeds OEM specifications.
Final High Voltage Tests (DLA, Capacitance and PD) were performed at the completion of the repair, and the motor was then set up on ERM’s test bed, and test ran for 4 hours. An independent 3rd party conducted Vibration Analysis.
After the motor successfully passed Vibration Analysis the first time, the motor was painted to the OEM specification and dispatched back to the site. The overhaul was carried out in a timely manner, within budget and returned to the site exceeding the customer’s expectations.
