In 2019 the Evans Pump #2 experienced a small electrical fire within the motor. Vibration testing conducted in 2020 showed alert levels in the motor originating from the pump. In 2021 the SDIC board of directors decided to rebuild both the pump and motor. Though motor rebuilds have been completed in the past, pump rebuilds to the Evans Pumps had not been completed since the United States Army Corp of Engineers retrofitted all four pumps following the 1996 flood.
The first task was removing the pump and motor from the pump station.
After the pump was removed from its sump and more thoroughly inspected, a serious problem was discovered. The diffuser housing and propeller had developed significant cavitation damage.
The pump and motor was delivered to Electric Motor and Machine in Salem, OR for repairs. After the motor was disassembled the cause of the electrical fire was discovered to have been in the stator coils.
The motor was now not only needing to be rebuilt, it needed to be recoiled.
Repairs to the pump were being completed at the same time.
The shaft bushings were replaced, and the shafts rebalanced.
The propeller cavitation damage was repaired and the propeller balanced.
The cavitation damage to the diffuser housing was repaired using a titanium resin epoxy to fill the cavitation pitting.
After repairs were completed in January 2022, reinstalation of the pump and motor began.
The suction umbrella was reattached and the final connections were completed.
On February 16, 2022 the Evans Pump #2 re-entered pumping operations.