CAUTIONIn case of emergency it is possible to suck the water from the bilge through the sea water pumps of each engine.
In the engine room there is the bilge emergency draining system, which operates with shunters, which allow using the sea water pumps, driven by the propulsion engines as draining pumps.
The are valves which, in normal position, ensure the sea water suction for engine cooling, through the sea cocks and the sea water strainers. In case of emergency, operate the handwheels of both valves, bringing them to the emergency position: the suction of the pumps, driven by the engines is then diverted directly to the bilge.
Should it be necessary to use this draining system, the bilge level must be checked continuously, because in case of complete drainage, the engines will be without coolant.
CAUTIONIn case of emergency it is possible to suck the water from the bilge through the sea water pumps of each engine.
CAUTIONWhen the bilge is empty, remember turning the valves back to sea water intake position, in order to avoid damaging the engines.
Operating diagram:
All valves are provided in the sea-open position. Before proceeding with the installation, visually check the passage and that the wording through the handwheel window reads: APERTO MARE / SEA-OPEN.
The direction of the water flow through the valve must align with the arrow on each valve.
The handwheel is provided with a position indicator to simplify its use.
To enable water inlet from SENTINA / BILGE, proceed as follows:
Turn the handwheel clockwise until it stops. In this phase the shutter, located in its housing, offers resistance. With both hands, close until it mechanically locks. The wording in the handwheel window will read: APERTO SENTINA / BILGE-OPEN, which indicates the inlet position.
Tighten the pin until it stops
CAUTIONThe pin is correctly tightened as shown.
A complete closure of the pin has the purpose of preventing any movement of the shutter.
Lower the handwheel lever into its seat.
To enable water inlet from SEA, proceed as described above, turning the handwheel counterclockwise. Once the operation is finished, the wording in the handwheel window will read:
APERTO MARE / SEA-OPEN
which indicates the inlet position.
Maintenance:
During ordinary maintenance, which must be carried out while the yacht is in dry shore, it is recommended to extract the valve control block as follows: make sure that the indicator is positioned to SEA-OPEN (first turn the handwheel counterclockwise). Loosen the screws with an Allen wrench and extract the mechanism from its body, paying special attention to the rubber components (gaskets).
DO NOT remove the handwheel from its seat!
If necessary, clean the rubber components with fresh water and soap, do not use any chemical cleaners and pay attention not to damage the gaskets. If necessary, the control block can be replaced with a new one.
When reassembling, use silicone grease, and pay special attention to the seats of the gaskets.
Make sure to insert the mechanism in “APERTO MARE - SEA OPEN” position (first turn the handwheel counterclockwise as indicated in the INSTRUCTIONS).
Tighten the screws with a torque of approx. 9 Nm.