Chapter 3: Propulsion & Related Systems
490 Motoryacht • Owner’s Manual
32
Fuel Filters
•
The fuel pickup tube (located inside the fuel tank) is equipped with a fine mesh screen filter.
•
In addition, when supplied by the engine manufacturer, a fuel filter is installed on the engine.
•
Periodically replace the fuel filters to make sure they remain clean and free of debris.
•
Consult with your selling dealer or local marina concerning fuel additives that help to prevent fungus or other
buildup in your fuel tank.
Anti-siphon Valve (Gas Engines Only)
•
Gas fuel systems are equipped with anti-siphon valves.
•
The valves are located at the point where the fuel feed line attaches to the fuel tank.
•
The valve is spring loaded and is opened by fuel pump vacuum.
•
This valve will prevent fuel from siphoning from the tank in the event of a fuel line rupture.
Oil Change System
(If Equipped)
Your yacht may feature an oil
change pump to simplify drain-
ing and filling engine and gener-
ator oil. See the oil change
system instructions for informa-
tion on the use of this system.
Fire Suppression System (If Equipped)
Before using your boat for the first time, read and understand the fire suppression system’s instruction and main-
tenance manual and follow all warnings.
Observe the following:
•
The system will go off automatically whenever direct heat from a fire is detected in the engine compartment.
•
The system can be set off manually by pulling the T-handle (labeled “FIRE”) at the helm.
•
The system can only be set off once. After the system is discharged it must be refilled and refurbished before
it can be used again.
N OT I C E
•
If an engine running problem is diagnosed as fuel starvation, check the anti-siphon
valve. If the valve is stuck or clogged, change or replace it while the engine is shut down.
•
NEVER run the engine with the anti-siphon valve removed, except in an emergency.
PORT
ENGINE
STARBOARD
ENGINE
GENERATOR
OIL CHANGE
PUMP
Summary of Contents for 490 PILOTHOUSE
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