Single-Lever Mode (Multiple Engines); Start/Stop All Engines; Engine Indicator Leds; No Engines Running - Start Engines - Mercury 71712 Operation Manual

Section 1 - DTS Controls and Features
Single‑Lever Mode (Multiple Engines)
Dual‑handle console ERCs feature the ability to command all engines with a single‑lever. This feature simplifies
engine management. Single‑lever mode has no affect on the joystick function (if equipped).
To engage single‑lever mode:
1. Place both ERC levers in neutral.
2.
Press 1 LEVER. The single‑lever light will turn on.
3. Place the port ERC lever into gear.
4. The RPM on all engines will increase and decrease in sync, while all drives remain in gear.
To disengage single‑lever mode:
1. Place both ERC levers in neutral.
2.
Press 1 LEVER. The single‑lever light will turn off.

Start/Stop All Engines

Dual‑handle console ERCs have a START/STOP ALL ENGINES button, which allows starting or stopping
all engines with a single button push. The exact behavior of the engines depends on:
1. How many engines are running when the button is pressed (none, all, or some)
2.
Whether a particular engine's key switch is ON or OFF
3. What other actions the operator takes immediately after pressing the START/STOP ALL ENGINES
button

Engine Indicator LEDs

LEDs on the START/STOP ALL ENGINES button and the individual engine START/STOP buttons (on the aft end of the ERC)
indicate the status of all engines.
No Engines Running ‑ Start Engines
When no engines are running (and no engine status LEDs are lit), press the START/STOP ALL ENGINES button to start all
engines.
1. The LED on the START/STOP ALL ENGINES button turns on.
2. The engines will start according to the following sequence (as equipped):
a. Starboard outer engine ‑ the LED on the starboard outer (S) button will light when the engine starts.
b.
Port outer engine ‑ the LED on the port outer (P) button will light when the engine starts.
c.
Starboard inner engine ‑ the LED on the starboard inner (C or SC) button will light when the engine starts.
d. Port inner engine ‑ the LED on the port inner (PC) button will light when the engine starts.
Certain conditions will cause an engine to be skipped in the starting sequence. The starting sequence will ignore an engine and
continue with any remaining engines, if:
1. Smart start times out (around 8 seconds) for an engine
2.
The ignition key switch is OFF for an engine (the starting sequence will proceed with no delay)
All Engines Running ‑ Stop Engines
When all engines are running (and all engine status LEDs are lit), press the START/STOP ALL ENGINES button to stop all
engines. All engine status LEDs (individual and the ALL ENGINES LED) will turn OFF.
Some (Not All) Engines Running ‑ Stop Engines
When some but not all engines are running (and the corresponding engine status LEDs are lit), press the START/STOP ALL
ENGINES button to stop all running engines. All engine status LEDs (individual and the ALL ENGINES LED) will turn OFF.

Interrupting the Start All Process

Pressing any START/STOP button or turning an ignition key switch during engine start up is not recommended.
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