True or False: Step upthrust switches will stop the escalator if the step sags more than 1/8 inch within the step band.

The statement is false because step upthrust switches are designed to ensure that the steps on an escalator remain properly aligned and secure during operation. These switches only trigger an emergency stop if the steps move upward beyond a certain point, indicating a potential safety issue. A sag of more than 1/8 inch within the step band does not necessarily activate the step upthrust switches; these switches monitor upward movement rather than downward sagging. Therefore, while sagging may signal maintenance needs, it will not cause an immediate stop of the escalator through the upthrust switch mechanism.