Evans Pump Station-#2 Pump and Motor Rebuild (pic heavy)

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.

A crane is lifting a container while people observe, with overcast skies and buildings in the background.
A crane is lifting a large metal component at a construction site, with workers and equipment in the background.
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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 image shows a large, rusty metal turbine or fan component resting on a wooden pallet, likely in an outdoor setting.
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dirt on tread
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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 image shows a close-up of electrical wiring or coils within a motor or generator, highlighting some damaged or burnt sections.

The motor was now not only needing to be rebuilt, it needed to be recoiled.

The image shows an industrial motor core with winding coils inside, typical in electric machinery assembly or repair.
A person is working on a large, circular machinery component in a workshop, surrounded by spools and tools.
The image showcases a circular structure with copper wires and insulation, likely part of an electrical machine or generator.
The image shows a circular assembly with numerous wires and coils, likely part of an electrical or mechanical device.
The image shows a large, circular component, likely an electrical motor or generator stator, with winding and insulation.

Repairs to the pump were being completed at the same time.

The shaft bushings were replaced, and the shafts rebalanced. 

The image shows metal rods and components, including brass fittings and a black base, likely in a workshop or manufacturing setting.

 

The propeller cavitation damage was repaired and the propeller balanced. 

The image shows a close-up of a metallic surface with rough, worn-out edges, indicating wear or damage from use.
The image shows a close-up of a polished metal object, likely part of a tool or machinery, resting on a workbench.

 

The cavitation damage to the diffuser housing was repaired using a titanium resin epoxy to fill the cavitation pitting.  

The image shows a large, metal turbine component with blades and a central shaft, likely part of an industrial machine.
The image shows a large industrial wheel or turbine with visible blades and a blue lining inside the rim.
The image shows a close-up of a metallic turbine or propeller within a circular housing, highlighting its blades and central shaft.

After repairs were completed in January 2022, reinstalation of the pump and motor began.

A large, gray, cylindrical object secured on a trailer near a water body, likely equipment for industrial use.
The image shows a large, white funnel-like structure with a propeller inside, set against a scenic lakeside landscape.
A crane is lifting a large cylindrical object near a building on a cloudy day.
Two workers are handling a large cylindrical object in a workshop with industrial equipment and fixtures around them.
Two workers are engaged in installation or maintenance of large industrial machinery in a facility with metal walls and bright lighting.

The suction umbrella was reattached and the final connections were completed.

The image shows a large industrial structure, likely a cylindrical tank or pipe, within a dimly lit space. A ladder is visible.

On February 16, 2022 the Evans Pump #2 re-entered pumping operations.