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Centrifugal Pumps: Troubleshooting & Disassembly
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Centrifugal Pumps: Troubleshooting & Disassembly

Centrifugal Pumps: Troubleshooting & Disassembly is part four of the Centrifugal Pumps five-part training series.

The course covers the basics of troubleshooting, the disassembly of centrifugal pumps, and the safety precautions that should be followed. This course will show students how to identify symptoms of failure, which may indicate problems with various pump components. Students will learn the safe ways to prepare pumps for inspection through disconnect, removal, and inspection of the various components.

Course objectives include:

  • Explain the basics of pump troubleshooting
  • Assess pump temperature and possible causes of high motor temperature, overheated packing, and overheated bearings
  • Identify signs of and causes for cavitation, vibration, and air entrainment
  • Identify causes of low flow rate and low discharge pressure
  • Describe the safety precautions to follow prior to working on a pump system
  • Recognize procedures for isolating a pump, depressurizing a system, and draining and inspecting fluids from a pump
  • Describe the safe and correct steps to remove a pump casing, to remove the impeller, and to handle pump packing, seals, and bearings
  • Describe how to check the shaft, seals, packing, and impeller mounting areas
  • Identify the location and consequences of pitting, erosion, and scoring in a pump.

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