Activities in the seal oil system include checking the seal oil pressure and flow to ensure the gap between the rotor and stator is tightly sealed to prevent steam or gas leakage, checking the filter condition and oil cleanliness to maintain lubrication quality, and inspecting the pump and tank to ensure the system is operating stably.

In addition, oil level measurements, temperature checks, and leak detection in pipes or fittings are performed to ensure the seal oil system continues to protect the rotor and maintain the efficiency and safety of the generator or turbine operation.