When door restrictors are used, what alignment should the door linkages avoid?

In this context, it's important to understand that door restrictors play a crucial role in elevator safety by limiting the door's ability to open when the elevator is not at a landing. When door linkages are aligned correctly, they must avoid any mechanical prevention of the doors from opening. This alignment ensures that the doors can operate freely without obstruction when the elevator is at the correct position.

If the linkages are misaligned in a way that mechanically prevents the doors from opening, it could create a dangerous situation where passengers are unable to exit the elevator in an emergency. Proper alignment of the door linkages is essential to ensure safe operation and the correct function of door restrictors, allowing them to perform their intended safety function without impeding access to the elevator.

In contrast, alignment that is "too tight" could restrict movement, and ensuring alignment for a straight line or maximizing clearance, while important, is not the primary concern when addressing the potential hazards of mechanical prevention of door operation. The main focus should always be on facilitating safe access under the right conditions while utilizing the restrictors effectively.