Scout Boats 350 LXF, Owner'S Manual

Page: 35 / 166

35
CAUTION
4.1 General
Your Scout is equipped with 120-volt AC and 12-
volt DC electrical systems. The AC system can
draw current from one of two sources, either shore
power outlets at dockside or an optional genera-
tor. The DC system draws current from on board
batteries.
Your boat and engine charging system is designed
for 12-volt, lead acid wet cell marine batteries.
They will require similar maintenance as those
found in automobiles.
All wires in the electrical systems are color coded
to make identifying circuits easier. Wiring sche-
matics have been included with this manual to
aid in following an individual circuit of the boat.
4.2 12-Volt DC System
The 12-volt system is a fairly standard marine
system. There are five batteries, one for the
starboard engine, one for the port engine and
three for the house and electronics. If your boat
is equipped with the optional generator and bow
thruster, they will be operated by the house bat-
tery bank.
The batteries for the engines, house and electron-
ics are located in a compartment in the leaning
post below the helm seats and in a battery tray
mounted in a storage compartment below the
forward cockpit sole. They are controlled by three
battery switches, one for the port engine, one for
the starboard engine and one for the house 12-volt
accessories and the electronics. The optional bow
thruster is located below the forward storage hatch
in the cabin and is controlled by a main switch that
is activated automatically when the bow thruster
is energized. The optional generator is started
by the house batteries. The batteries themselves
can be charged by the engines or by the battery
charger when connected to shore power or when
the optional generator is operating.
Most 12-volt power is distributed to the 12-volt
accessories through individual circuit breakers
located in the 12-volt switch and breaker panels.
All circuit breakers are labeled by the name of the
circuit they protect. Main circuit breakers in the
battery switch panel protect the primary circuits
for the DC main, windlass, continuous hot and
generator control panel. Additional “push to reset”
breakers in the battery switch panel protect the
circuits for the remote starboard engine battery
switch, remote port engine battery switch, remote
house battery switch and the generator starting
circuit. Most 12-volt accessories are operated
directly by switches in the helm switch panel,
hardtop switch panel, cabin and circuit breakers
in the cabin DC panel.
Main breakers or fuses located on each engine
protect the ignition systems and gauges. Yamaha
engine electrical circuits are protected by fuses
located in a fuse panel on the side of the engine.
The fuse panel is equipped with a spare fuse for
each circuit. Always replace fuses used with the
fuse specified by Yamaha or your engine manu -
facturer. Refer to the engine owner’s manual for
more information on the fuses, fuse panels or
circuit breakers on your engines.
PROPER FUSE OR BREAKER PROTECTION MUST BE PROVIDED
FOR ALL 12-VOLT EQUIPMENT ADDED. DO NOT OVERLOAD
THE ACCESSORY CIRCUIT BREAKERS OR OTHER CIRCUITRY
THROUGH ADDITIONAL 12-VOLT EQUIPMENT.
Chapter 4:
ELECTRICAL SYSTEM
Scout Boats Marine Standard Wiring Code
COLOR USE
Brown (Br) Pumps
Orange (O) Accessory Feed + 12 VDC
Dark Blue Cabin/Courtesy/Instrument Lighting
Pink (Pk) Fuel Sender
Dark Gray (Gy) Navigation Lighting
Black or Yellow 12 VDC Ground
Purple (Pu) Ignition Instrument Feed + 12 VDC
Green (G) DC Grounding (Bonding)
Red + 12 VDC Power