Wellcraft 270 Coastal, Руководство пользователя

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circuits are also on this panel. An owner’s manual for the
generator has been supplied with this manual. Please
refer to it for details on the generator operation.
The generator engine uses a closed cooling system with
a seawater-cooled heat exchanger. There is an
expansion tank for the engine coolant mounted on the
generator. Make sure the fluid level in the expansion
tank is kept between the maximum and minimum lines
of the tank. You should also check the exhaust port for
water flow each time the generator is started. If there is
no discharge within thirty seconds, shut down the
generator, find and correct the problem.
The seawater cooling system includes a strainer that
prevents debris in the seawater from entering the
cooling pump. The strainer is located in the bilge
compartment near the generator. It is important to
check and clean the strainer regularly to ensure the
seawater system can circulate enough water to provide
cooling for the closed cooling and exhaust systems on
the generator.
Cleaning the sea strainer
• Turn off the generator
•
Close the generator water intake valve.
• Open the top of the strainer and remove the screen
• Thoroughly flush the screen and the inside of the
strainer to remove foreign matter.
• Lubricate the seal.
• Reassemble the strainer making sure that all
fasteners are tight.
• Open the intake valve.
• Start the generator and inspect the strainer for
leaks.
The generator fuel system operates much like the fuel
system for the main engines. Please refer to the Fuel
System chapter for more information on generator fuel
system.
You also should read the generator owner’s manual for
detailed information on the safe operation and
maintenance of the generator.
Note: Generators charge the battery just enough
to compensate for the DC electrical
current the engine requires to operate.
Therefore, it is important to activate the
battery charger to maintain the generator,
house and engine batteries whenever the
generator is running.
Note: The generator used in your boat may not
be able to operate all 120-volt accessories
at the same time. POWER MANAGEMENT
PRACTICES may need to be observed
depending on the AC power load.
Galvanic Isolator
Your boat is equipped with a bonding system that
interconnects all underwater hardware and thru-hull
fittings to ensure that they are of the same electrical
potential. Zinc anodes are attached to the bonding
system at the transom and engines. The Zinc anodes
deteriorate before the other metals, thereby protecting
the underwater metals from galvanic corrosion or stray
electrical current. Since the zincs are sacrificial, it is
important to monitor them and replace the zincs when
they have deteriorated to 50 – 75% of their original size.
The bonding system is connected to the DC ground and
the earth ground wire for the AC electrical system. It
provides a path for dangerous short circuits in the AC
electrical system to the safety earth ground in the event
of a fault in the shore earth ground connection and
when the boat is away from the dock.
When the boat is connected to shore power at a marina
or city dock, all boats connected to shore power are
connected to a common shore safety earth ground
connection. This circuit provides essential protection
against shock from faults or short circuits in AC
equipment and, unfortunately, provides a path for low
voltage galvanic current to flow between the bonding
system of other boats in the circuit. If one or more of
the boats in the circuit has a stray current electrical
problem or is not equipped with proper galvanic
protection, it will seek protection from your boat’s
bonding system through the safety ground circuit. This
could cause accelerated deterioration of the zinc anodes
and/or severe damage to the underwater hardware. To
prevent damage from other boats in the circuit, a
galvanic isolator is installed in the shore ground circuit
that isolates your boat’s bonding system from the other
boats. It prevents the flow of low voltage galvanic
current while still providing a path for dangerous short
circuit currents in the AC system to the shore safety
ground.
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