What action is necessary before restarting rotating equipment that has recently undergone repair?

Restarting rotating equipment that has recently undergone repair requires careful consideration of the equipment's condition and safety measures. Testing the equipment for functionality is crucial as it ensures that all repairs have been executed correctly and that the equipment operates as intended. This step is vital to confirm that the issues leading to the repair have been resolved and that no additional faults are present.

While lubricating moving parts and installing guards are essential maintenance tasks, they should typically be performed as part of routine maintenance or before the equipment starts, not as a preliminary action after repairs. Running a diagnostic check can also be beneficial, but the principal action before restarting the equipment is to verify its functionality directly after repairs, which provides immediate confirmation of readiness for operation.