Westerbeke 7.0 KW BGC -60Hz Technical Manual page 131

DC Voltmeter
The DC voltmeter in the remote instrument panel can be a useful instrument in determining the status of your
electrical system and in warning you when an abnormality occurs. The voltmeter will indicate differently,
depending when the readings are taken.
Fully charged batteries that are in a static state should read between 12.3 and 12.6 volts on the dial. The
term static means that the battery has not been charged or discharged for at least 2 hours. If the reading is
between 11 and 11.5 volts, then the battery is about half discharged and should be charged to ensure its
usefulness. If the engine is started and the needle does not go up, this would indicate that no charge is
presently delivered to the battery.
When the battery is charging, the needle should be between 12.6 and 13 volts. The needle may move up to
about the 14.6 volt range toward the end of the charge cycle, at which time the needle drops back to the 12.6
to 13 volt range, as voltage regulation controls this function. If the battery's voltage exceeds 15 volts, this
indicates that the battery is being overcharged and the battery will be damaged
if
left unchecked. The voltage
regulator is most likely at fault when this happens.
When the battery is discharging (having electrical loads placed upon it and no charging current applied), it
is normal for the needle to indicate between 11.4 and 12.6 volts.
Electrical System Troubleshooting
Trouble
ON switch depressed,
electric fuel pump
not energized.
No ignition, cranks,
does not start.
possible Cause
1. Battery switch or
power not on.
2. 20 amp circuit
breaker tripped.
1. Overspeed module
tripped.
2. Fuse blown.
3. Lack of fuel.
4. Choke faulty. Solenoid
inoperable.
127
Remedy
1. Check switch and/or
battery connections.
2. Reset breaker
if
it
trips again, check
on and start circuits
for shorts to ground.
1. Reset circuit by de-
pressing stop switch.
2. Check fuses; replace
if
necessary.
3. Check for fuel to
generator set.
Check fuel lift pump.
4. Check to see that it
is not jammed. Should
close when engine is
cranking over, only.
Westerbeke Generators