The fuel system of your yacht consists of two tanks (1) located in a engine room behind the forward bulkhead, reinforced internally, certified and tested by RINA.
Each tank is made in accordance with current regulations, fuel-resistant and corrosion-proof, fixed to the bottom and side of the tank and resinated to the bulkhead of the engine room; The total storage capacity is 2300 liters.
Inside the tank, anti-barking bulkheads (diaphragms) have been inserted to prevent excessive overflow of fuel due to wave motion of the sea, while hermetically sealed inspection flanges are bolted onto the tank, through which the various fuel supply and return passages.
The free filling nozzle, through which the gravity tank is filled, closed by a screw cap, are placed on the side of the yacht.
The ship’s fuelling board is equipped with a flow switch which has the function of preventing unwanted fuel leaks from the plug and the vent that can stain the deck and pollute the surrounding waters.
The presence of condensate water in the tank favours the development of microorganisms in the fuel that cause premature filter clogging and corrosion damage. It is therefore necessary to drain condensate water from the tank and separate separator filters (engine prefilter, engine filters and generator filter) at regular intervals. At the bottom of the reservoir is a cavity with drainage device, where impurities and condensation water can be collected.
We recommend filling the tank some hours before departure; in this way, the impurities and water in the fuel will decant on the tank bottom as they are both heavier than fuel.
The particular shape and arrangement of the tank eases settlement of possible impurities or water which may be present in the fuel; it is advisable to carry out tank drain, by means of the special air valve, a few hours after refuelling, and possibly while the yacht is stopped.
It is also advisable to connect the bleeding valves delivery to a hose, convoying the liquid into a bucket in order to avoid collecting flammable fuel in the bilge, thus preventing the formation of noxious exhalations.
While boarding, the fuel flow produces a lot of foam; if it comes out, you might think the tank is full.
Therefore, it is good to wait for a few minutes and then top up, in order to be sure that the tank has been completely filled.
The inlet plug carries the indication “DIESEL” to avoid accidental input of different fuels.
To avoid damage to the system and tanks, we recommend replenishing by gravity and not by pressure.
The sensor reading can be distorted by the temperature, because the specific weight of fuel varies according to this last parameter and to the yacht trim. Therefore before setting-up for navigation, always refer to the visual level in the engine room.
Every marina has dedicated toxic waste disposal areas. It is recommended not to scatter waste that can contaminate the environment (such as used oil, fuel, oily liquids, batteries, etc.).
Prior to perform any job in the engine room, disconnect the bilge pumps switches, to prevent accidental fuel, lubricant or other liquid leaks and therefore the pollution of the yacht surrounding waters.
Because of the high temperature in the engine room, oil or fuel leaks can evaporate and create a serious risk of fire.
Fuel leak can cause a fire to break. Check regularly the integrity of the system.
The bilges of the engine room must always be kept clean, so that fuel or oil leaks or penetrations from the engines or the generators can be easily noticed. If leaks are noticed, it is necessary to stop the engines and to let them cool and only afterward, if possible, repair the leak.
Finally clean the bilges.
It is forbidden to discharge bilge water mixed with oil or diesel fuel into the sea, because this can cause of serious pollution. Check periodically the level of possible oily waters contained into the collecting tanks under the engines, should their level be close to bilge over flooding, disconnect the magneto-thermal of the bilge automatic pump system, to avoid accidental spills, until the tanks have been completely drained in accordance with the environmental legislation. During the maintenance operation in the engine room, it is compulsory to disconnect the magneto-thermal of the bilge pumps automatic suction system, avoiding in this way accidental spills.
The bleeding procedure should be carried out every two or three refuelling operations.
Handle water mixed with fuel and dispose of it according to the rules in force. Use only authorized disposal procedures; in case of doubt, refer to the Port Authorities.
A fuel leak can generate fire and explosion hazard.
Fuel cannot be stowed inside the garage.
It is forbidden to smoke, use naked flames or keep mobile phones switched on during refuelling.
EXPLOSION/FIRE DANGER
EXPLOSION/FIRE/POLLUTION DANGER
Fuel system connections that are too loose or too tight can leak, resulting in fuel loss, environmental pollution and explosion/fire danger.
Fuel system diagram: