Never attempt a repair while the system is energized.
After completing the repair, John's team would perform a series of final checks: pump repair checklist
With the inspection complete, John's team would proceed with the repair: Never attempt a repair while the system is energized
This is the diagnostic phase. Keep a clean workspace and organize parts as you remove them. pump repair checklist
A: There is no set calendar schedule. Replace them based on condition. If you hear noise, feel vibration, or notice the housing running hotter than usual, it is time to replace them. Generally, bearings should be replaced whenever the pump is opened for a seal change.