What is the main consequence if the deadman control is not pressed within the specified time during pantograph flushing?

The primary consequence of not pressing the deadman control within the specified timeframe during pantograph flushing is that the pumps will shut off. This safety feature is designed to prevent continuous operation of the pumps in case the operator becomes incapacitated or leaves the control area, thereby avoiding potential equipment damage or hazardous situations.

When the deadman control is not engaged, the system's safety protocols automatically activate to terminate the operation of the pumps. This ensures that the equipment does not operate under potentially uncontrolled conditions, which can lead to malfunctions or unsafe scenarios. Thus, the correct answer reflects the critical safety mechanism in place to protect both the equipment and personnel involved in the flushing process.