Which component must be mechanically activated during normal operation of a special purpose elevator?

In the context of special purpose elevators, the brake is a critical safety mechanism that must be mechanically activated during normal operation. The purpose of the brake is to ensure that the elevator can be securely stopped and held in position, especially during loading and unloading of passengers or goods. It provides essential safety by preventing accidental movement of the elevator car when it is stationary.

In special purpose elevators, such as those designed for specific applications, the brake system may be designed to engage automatically or to require manual activation in certain operating conditions. This mechanical activation ensures that the elevator remains safe and stable when not in motion.

While the control panel, drive motor, and door mechanism are also important components of the elevator's operation, their primary functions do not explicitly include a mandatory mechanical activation for safety during normal operational scenarios as the brake does. For instance, the control panel is primarily used for inputting commands, while the drive motor is responsible for moving the elevator, and the door mechanism ensures proper and safe opening and closing of the doors. The activation of these components does not directly relate to the immediate safety concerns addressed by the braking system.