is the same as that of the battery. Chaparral boats have a nega-
tive ground system, which is recommended practice
throughout the marine industry. All metal items (fuel tanks,
underwater hardware) in the boat are connected to the zinc
anode by the green bonding wire.
Once a year
(Performed by a qualified marine technician).
• Verify that any galvanic isolators (if installed on your boat) meet
current American Boat & Yacht Council (ABYC) standards and
are fully functional.
• Operate the boat’s electrical system at full load (everything on)
and check for AC system leakage or voltage between the boat’s
underwater fittings (bonded system, if equipped) and the shore
side AC system ground.
Galvanic Isolator
A galvanic isolator is installed in your boat and electrically con-
nected between the boat’s AC panel ground and the dockside AC
ground wire. The galvanic isolator is designed to permit AC ground
currents to pass safely between the boat and the dockside but to
block the small DC currents that flow in seawater between boats in
a marina because of different metals on the boats that are in the
water. When the shore power cord is connected to the boat and
breaker, the green light on the panel should be on.
FUEL SYSTEM
The internal fuel system on your Chaparral boat meets all current
Federal requirements.
Fuel lines, filters, and all fuel system components should be
checked at the start of each season and periodically thereafter, par-
ticularly after any work has been done aboard the boat which might
have affected any part of the system. Be certain that all are in
proper condition and that the entire system is fuel tight.
The fuel tank is located forward of the engine compartment under
the cockpit floor. The fuel tank fill pipe is located on the outside
deck. Some models have a dual fuel system, providing convenience
and flexibility of refilling your fuel tank from either side of the boat.
The fuel tank vent allows air to escape as the tank is being filled and
helps equalize tank pressure as temperatures change. The tank has
an anti-siphon valve which keeps fuel from leaking into the boat in
case of fuel line breaks.
Periodically, check the condition of the fuel tank components. Fuel
tank fittings are accessible through the inspection plate of the cock-
pit floor.
Note: The fuel fill cap has a built in tank ventilation feature. If
you should need to replace the cap, see your Chaparral dealer
for the exact cap to ensure proper fuel system operation.
3-4
CAUTION: To prevent damage to electrical system, never oper-
ate shore power system at low voltage.
CAUTION: Electric shock is possible if you turn on main cabin
breaker when reversed polarity is present.
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