You are installing a machine and sheave, where would machine and secondary sheaves be aligned?

Aligning the machine and secondary sheaves in the center of the rail measurements is crucial for optimal performance and minimal wear on the system. This alignment ensures that the ropes travel smoothly over the sheaves, reducing friction and prolonging the life of both the ropes and the components. Proper central alignment helps maintain balanced and consistent operation, which is essential for safety and efficiency in elevator systems.

While there could be considerations like mounting height or proximity to motor assemblies, those factors do not prioritize the core function of alignment in relation to the guide rails. Therefore, aligning the sheaves based on rail measurements is the key factor that directly influences the operational integrity of the elevator.