Single-Lever Mode; Synchronizing Engines; Single Engine Operation - Mercury Axius Manual

Section 2 - On the Water

Single-Lever Mode

Joystick piloting features 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. It is not the same as the system feature called Sync.
To engage single‑lever mode:
1. Place both ERC levers in neutral.
2. Press 1 LEVER on the DTS trackpad. The single‑lever light will turn on.
3. Place the starboard ERC lever into gear.
4. The RPM on the engines will increase and decrease in sync, while both 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.

Synchronizing Engines

Sync mode is an automatic engine‑synchronization feature that engages automatically at key‑up. Sync mode monitors the
position of both ERC levers. If both the levers are within 10% of one another, all engines synchronize to the starboard engine's
RPM. The SmartCraft system will automatically disengage sync at the last 10% of the lever range to allow each engine the
ability to reach the maximum available RPM. Sync mode cannot engage until its minimum RPM is met.
The indicator light on the sync button will be on when all engines are on. The light is yellow at idle and 95% of throttle and when
the engines are not synchronized. The light turns red when the engines are synchronized.
VesselView shows an orange icon if the engines exceed an RPM difference of 10% of one another. The icon turns red when
they synchronize. The icon turns off when sync mode is off.
To disengage sync mode:
1. Place the ERC levers into any detent.
2. Press SYNC. The sync light turns off.
To engage sync mode, press the sync button at any time.

Single Engine Operation

If an engine or steering system stops functioning during use, the remaining drive is electronically limited while turning inboard.
This prevents the drives from making contact with each other, since the active drive is unable to determine the position of the
disabled drive. The boat is still operational, but maneuverability is decreased when turning toward the side that is not working.
Refer to the inboard drive angle limit in the following table. The drive is still capable of turning through its full range when
turning away from the disabled drive. Use extra caution when one of the drives is disabled.
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Single-lever button and light
Sync button and light
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90-8M0099745 MAY 2015
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