Dc Circuit/Battery; Shore Power Traasfer Switch - Westerbeke 3.5 SBCG Operator's Manual

DC CIRCUIT/BATTERY
DESCRIPTION
The DC Circuit functions to start, operate and stop the
generator's engine. The circuit is best understood by
reviewing the DC Wiring Diagram and Wiring Schematic.
The engine's DC wiring is designed with three simple basic
circuits: start, run, and stop.
The engine has a 12 volt DC electrical control circuit that is
shown on the Wiring Diagrams. Refer to these diagrams
when troubleshooting or when servicing the DC electrical
system on the engine.
A
CAUTION:
To avoid damage to the battery charging
circuit, never shut off the engine battery switch while
the engine is running. Shut off the engine battery switch,
however, to avoid electrical shorts when working on the
engine's electrical circuit.
Specifications
The minimum recommended capacity of the dedicated battery
used in the engine's 12 volt DC control circuit is 600-900 CCA.
Battery Charging Circuit
The engine supplies a continuous 6 amp charge from the
voltage regulator to the engine's battery. This charge passes
thru an 8 amp fuse (and the ships battery switch).
Testing the Circuit
If the battery is not charging, check the fuse. To test the
circuit, remove the fuse and test with a voltmeter between the
fuse holder connection and ground. With the engine running,
it should indicate 13.0- 13.1 volts.
If
only battery voltage is
indicated, check the terminal connections at the battery.
Battery Maintenance
Review the manufacturer's recommendations and then
establish a systematic maintenance schedule for your
engine's starting batteries and house batteries.
• Check the electrolyte level and specific gravity with a
hydrometer.
• Use only distilled water to bring electrolytes to a proper
level.
• 'Make certain that battery cable connections are clean and
tight to the battery posts (and to your engine).
• Keep your batteries clean and free of corrosion.
NOTE: Ensure that the B+ battery cable connected to the
remote mounted starter solenoid is properly supported to
prevent unwanted stress on the solenoid.
SHORE POWER TRANSFER SWITCH
If the installer connects shore power to the vessel's AC
circuit, this must be done by means of the Shore Power
Transfer Switch. Set the transfer switch shown in the
diagrams to the OFF position. This switch prevents
simultaneous connection of shore power to generator output.
SINGLE LINE 120 VOLT SYSTEM
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Shore Power
Shore Power Transfer Switches are available from your
WESTERBEKE dealer.
A
CAUTION:
Damage to the generator can result if
utility shore power and generator output are connected
at the same time. This type of generator damage is not .
covered under the warranty; it is the installer's
responsibility to make sure all AC connections are
co"ect.
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230 VOLT/50 HERTZ lWO WIRE CONFIGURATION SYSTEr
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