What is the initial method to check coupling alignment?

Using a straight edge is an effective initial method to check coupling alignment because it provides a straightforward way to assess whether the two shafts align properly. By placing the straight edge across the coupling faces, any gaps or misalignment can be easily observed. This method is not only simple but also cost-effective, making it ideal for an initial assessment before using more advanced tools like laser alignment.

In situations where precise alignment is necessary, visual inspection and measuring tools may be used as supplementary methods. However, those methods often require more expertise and are typically employed after an initial review has been conducted. Laser alignment tools, while highly accurate, are generally utilized for fine-tuning alignment after a more basic evaluation has indicated a misalignment, which is why they are considered a subsequent step rather than an initial check.