During the monthly inspection of the MASS, why are sheaves inspected for freedom of rotation?

Inspecting sheaves for freedom of rotation is critical in ensuring that the mechanism operates smoothly and efficiently. When sheaves experience friction due to being unable to rotate freely, it can lead to unnecessary wear and tear, resulting in potential damage to the tapes or other associated components. Proper rotation allows for the effective transmission of motion and helps maintain the integrity of the entire system.

Friction not only generates excessive heat, which can further compromise the materials involved but can also impede the movement of the tapes. This might lead to overstressing the system and can ultimately impact performance or cause failure in the operation of the MASS. Ensuring that sheaves can rotate freely is therefore crucial for the longevity and functionality of the equipment.