Before beginning any alignment, what should you check for?

Before beginning any alignment procedures, it's crucial to check for all relevant factors that could affect the accuracy of the alignment process. The correct answer encompasses a comprehensive approach to ensure successful equipment alignment.

Bar sag refers to the deflection that can occur in alignment bars used during the process. If bar sag is present, it can lead to misinterpretation of readings, resulting in improper alignment.

Soft foot occurs when a machine base does not rest evenly on its foundation or mounting surface, leading to distorted readings during alignment. This condition must be corrected before proceeding, as it can significantly impact the alignment accuracy.

Bent shafts can also hinder proper alignment. Even slight bends in a shaft can create misalignment, which can lead to increased vibration, wear, or even failure of the machinery.

By checking for bar sag, soft foot, and bent shafts, a technician can ensure that the alignment process is built on a solid foundation, ultimately contributing to the reliability and longevity of the machinery. Therefore, it is essential to address all these factors to perform a successful alignment.