5.5.2 Throttle

The throttle is a system designed to control the revolutions of the engines and the speeds to the gear boxes by means of an electric signal.
The throttle have following performance features and functions.

• Sequence setting of gear box with engine speed.
• Start interlocking.
• Low/high idle run.
• Synchronization of engines for several propellers.
• Trolling solenoids control.
• Emergency control against back run.
• Gear box oil pressure interlocking (optional).

Taking control phases

• Set levers of throttle to idle position. The station cannot take control with throttles set to other positions. You hear the acoustic sequence of initialization.
• Press COMMAND (COM) at the station. The COMMAND LEDs flash.
• Move the throttles to any position.
• The control LEDs light continuously.

WARNING

Subsequently moving the lever of the throttle will engage the gear.

• Start the engine while sending the idle run control. If the levers of the throttle are not set to idle run, the interlocking start switch will prevent engine start.
• Shift the levers on the forward or backward retainer. The transmission system runs and the COMMAND LEDs (COM) turn solid red to indicate that the station is in control and that the operator is sending the forward or reverse command.

CAUTION

Only one helm station can be enabled at a time.

Basic operation
The throttle has three detents: astern, idle and ahead.
With levers positioned on idle detent, the system sends idle run and minimum rpm control to the engines.
By shifting one lever forwards or backwards by 15°, the forward or reverse clutch engages. The engine holds the minimum rpm.

By shifting same lever further, the engine’s rpm increase proportionally to the shifting range.

Throttle detents

CAUTION

The idle detent (central position in relation to throttles shifting) is 10° ahead. The shifting degrees are measured according to this position, not to vertical position of the throttle.