Step1: Shut off power and allow the kettle to fully cool, then relieve internal pressure before servicing.
Step2: Drain the kettle jacket area as needed and access the sight glass port assembly carefully.
Step3: Remove the old sight glass assembly by loosening fittings and disconnecting it from the connection.
Step4: Install the new sight glass assembly using proper sealing tape or gasket, tightening evenly to avoid leaks or glass pressure.
Step5: Restore pressure gradually, check for leaks, and verify clear visual level indication before returning to service.