What is crucial to check before performing alignment adjustments?

Checking for underlying issues such as foundation problems is essential before performing alignment adjustments because these issues can significantly affect the machine's performance and alignment accuracy. The foundation provides the necessary support and stability for the equipment, and any deficiencies—such as settlement, cracking, or lack of rigidity—can lead to misalignment of the machinery after adjustments are made. If the foundation is not stable, even the best alignment will not hold up, leading to premature wear, vibration, and potential equipment failure. Addressing these foundational issues ensures that the alignment process will be effective and that the machine will operate reliably over time.