What is done when a Comeng is pushing a disabled Siemens?

When a Comeng is pushing a disabled Siemens, the correct procedure involves the Siemens operating on air brake. This is crucial for safe movement since the original braking system may not function properly due to the disabled state of the Siemens unit. By relying on the air brake, the system uses compressed air to engage the brakes, ensuring that they can be controlled effectively while being towed.

The functionality of the air brake system is vital, especially during operational scenarios where conventional braking mechanisms are compromised, such as in a disabled unit. This capability helps in maintaining a level of control and safety during the towing process, ensuring that the Siemens and the Comeng can be moved without incident.

In this context, although checking the speed sensors, disabling the EP C/B (Emergency Power Circuit Breaker), and closing the towing cock may be relevant procedures in certain situations, they do not specifically address the immediate action needed when a Comeng is tasked with pushing the disabled Siemens. The focus is on ensuring that the braking system is operational and reliable, making it paramount.