What procedure should be followed if a PA4 train fails to take power?

In the case of a PA4 train failing to take power, utilizing the Motorman's Bypass is the appropriate procedure. This method allows the engineer to bypass any potential issues related to the train's control system, enabling them to regain functionality and restore power to the train. This procedure is particularly important because it can resolve temporary electrical issues without needing to stop the train abruptly or lose communication with other systems.

Using the Motorman's Bypass is a practical step that can often address the problem quickly on-site. It is designed to be a swift response to power-related issues, ensuring that the train can resume operations safely and efficiently.

Other alternatives, such as using the emergency brake immediately, may cause unnecessary disruption and could lead to safety hazards. Moreover, turning off all power and attempting to restart the train may not solve the underlying issue and could lead to longer delays. Contacting the control center for instructions is also a viable option but may take additional time and is typically not the quickest solution when immediate action is feasible through the Motorman's Bypass.