What is the correct work procedure for inspecting the suction side of a large pump?

The correct work procedure for inspecting the suction side of a large pump involves locking out the equipment and removing the Dutchman. This step is crucial because it ensures the safety of the person conducting the inspection. Locking out the equipment prevents accidental start-ups during maintenance activities, which could result in severe injuries or accidents.

By removing the Dutchman, you gain access to the internal components, allowing for a thorough inspection of the suction side. This inspection is essential to check for any blockages, damages, or wear that might affect pump performance or safety.

Observing the pump operation does not provide the necessary detail required for an inspection, as it does not allow for direct evaluation of the suction components. Increasing the pressure before inspection can lead to unsafe conditions, as pressure changes might not be appropriate when examining potentially faulty parts. Running the pump for 10 minutes prior to inspection can also lead to safety hazards and does not provide the proper conditions needed to conduct a comprehensive check on the suction side. Therefore, the focus on safety and access through the proper lockout procedure solidifies why locking out the equipment and removing the Dutchman is the best practice.