Don’t Overlook the Hold Down Bolt Washers

Anyone involved in precision shaft alignment knows that unintentional movement is the biggest contributor to non-repeatable alignment results. Movement can come from several sources: Soft foot, loose bolts, flexible bases,…

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Is Your Coupling Relaxed?

During the OJT portion of a Fixturlaser NXA Pro training class, at a power plant, the students asked me to allow them to perform the precision laser shaft alignment of…

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Why do people struggle with alignment? Part 1

After a shaft alignment check, if it’s out of tolerance, some maintenance personnel will skip the pre-alignment checks and proceed directly to correcting the vertical and horizontal misalignment. Frustration begins…

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