Which component is likely to be at a 'luckiest position' for safety on a mechanical power press?

The flywheel position is considered to be in the 'luckiest position' for safety in a mechanical power press because it plays a crucial role in the operational cycle of the machine. The flywheel stores energy and provides the necessary power to operate the press. By understanding its position within the cycle, operators can predict when it is safe to perform maintenance or inspections. Typically, there are designated moments during the press cycle when the press is not in operation, which corresponds to specific flywheel positions that reduce the risk of accidental actuation.

In contrast, adjustable barrier guards, overrun switches, and chip guarding shields serve different safety functions. While they enhance safety by protecting operators from moving components or preventing unintended machine operation, they do not directly relate to the natural cycle of the press's operation. Proper training on recognizing the safe states of the flywheel can significantly contribute to a safer working environment by minimizing the risk of injury during machine maintenance and operation.