What must you ensure prior to putting the driven equipment into service?

Prior to putting driven equipment into service, ensuring proper lubrication is complete is crucial. Lubrication reduces friction and wear between moving parts, which is essential for the long-term operation and efficiency of the equipment. If lubrication is insufficient, it can lead to overheating, increased wear, and even catastrophic failure of the machinery.

Rolling the turbine to full speed without confirming that lubrication has been adequately addressed can result in severe damage. Other options like closing all valves may not be a prerequisite for starting the driven equipment and could be operational necessities specific to certain equipment types. Similarly, while checking electrical connections is vital for safe operation, it does not directly relate to the readiness of mechanical components for service.

Focus on ensuring that all moving parts are properly lubricated helps guarantee the machinery will operate smoothly and avoid premature wear or failure upon starting. Thus, proper lubrication should always be confirmed before any equipment is put into operation.