In this case, Tech B is correct. If there are any cracks in a belt, it indicates that the belt has been compromised and needs to be replaced. Cracks can weaken the structural integrity of the belt and increase the risk of it failing during operation. Therefore, it is crucial to replace a belt with cracks to ensure safety and optimal performance.
On the other hand, Tech A's statement about Stretch Fit belts applying appropriate tension over their useful life is generally accurate. Stretch Fit belts are designed to maintain the proper tension automatically as they wear and elongate. This self-tensioning mechanism helps them adapt to the changes in the system they are a part of, ensuring consistent performance.
So, in this scenario, Tech B's emphasis on the importance of replacing a belt with cracks for safety and reliability is the correct approach, while Tech A's point about the functionality of Stretch Fit belts is also valid in a different context.
