If threads are used, what must line up when assembly is complete?

When assembling equipment that utilizes threaded components, alignment marks are crucial for ensuring that everything is configured correctly. These marks are typically installed during the manufacturing process and serve as a guide for proper assembly. By aligning these marks, you ensure that the assembly is not only secure but also functional, enabling the equipment to operate as intended without issues such as cross-threading or improper fitting, which can lead to mechanical failure or safety hazards.

Proper alignment of components allows for optimal load distribution and reduces the risk of wear on the threads, making it vital for the longevity and reliability of the assembly. Misalignment can lead to mechanical jams or failures during operation, which is why verifying that the alignment marks are correctly positioned is so important.