What is the first step in aligning a vertical flange-mounted machine?

The first step in aligning a vertical flange-mounted machine is to correct angularity in both planes. This initial step is crucial because if there is any angular misalignment between the two elements being connected, it can lead to increased wear, vibration, and ultimately premature failure of both the machine and its components.

By addressing angularity first, you ensure that the axes of both machines are properly aligned in their respective horizontal and vertical planes. This sets a solid foundation for the alignment process. Once angularity is corrected, other adjustments, such as offset correction and positional measurements, can be more accurately performed, leading to a more successful and effective alignment overall.

The other options, while important in the alignment process, come after correcting angular misalignment. For example, checking for soft foot conditions is a critical step but is done to ensure that the machine sits properly on its base before making any adjustments.