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Commissioning and operationOperating the emergency operation unitRequirements for operation / activation / deactivation:D Operation of the emergency operation control system is only permitted in neutral positionof the command master of the control lever systemD The emergency operation control system should only be activated when the engine isrunning. Otherwise, the LED “System Failure” flashing indicates that the engine speedsignal is missingD The engine should be switched off using the ignitionWhen the emergency stop switch is activated while the ignition is on, the LED “SystemFailure” lights up on the Em-C operating unit, as the active systems EDC engine controland emergency operation unit are switched off by the emergency stop.The LED “System Failure” goes out when the emergency stop switch is unlocked.Operation / function of emergency operation unit in operation:Enabling emergency operation unitThe system is ready for operation (standby) after the ignition is switched on. This is indicatedby the green LED “Power On”. The red LED (Failure) must not light up.Pressing the “EM.Op On” key twice can now activate the emergency operation system:Em.OpOnThe first press of the key requests emergency operation. The key flashes for approx.6 seconds in cycles and an acoustic signal is sounded. During this period,the request must be confirmed by a second press of the key. The key lights uppermanently as soon as emergency operation has been activated.If the confirmation by the second press of the key is not given, the system returnsto the initial position (power on – standby).Note:Once the emergency operation system has been activated, switching back tonormal control lever operation only takes place when the engine is switched off(at least 3 seconds ignition OFF).43