4.5.2 Throttle

The handle block is a system designed to control the revolutions of the engines and the speeds to the gear boxes by means of electric signals. Owns 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.
• Emergency control against back run.
• Gear box oil pressure interlocking (optional).

Taking control phases

• Set the levers of the handle block to idle position. The station cannot take control with handles set to other positions. You hear the acoustic sequence of initialization.
• Press COMMAND (CMD) via the station. The COMMAND LED LIGHTS flash.
• Move the control levers to any position.
• The control LED lights emit a continuous light.

WARNING

Subsequently moving the lever of the lever group 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 to the forward or backward retainer. The transmission starts and the CONTROL LEDS light up steadily red to indicate that the station has taken control and that the operator is sending the forward or backward run control.

CAUTION

Only one helm station can be active at a time.

Basic operation
The throttle has three detents: astern, idle and ahead.
With levers positioned on idle detent “Neutral detent”, the system sends idle run and minimum rpm control to the engines. By shifting one lever forwards “Astern detent” or backwards “Ahead detent” 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 handles shifting) is 10° ahead. The shifting degrees are measured according to this position, not to vertical position of the throttle.