Electrical System
The engine is equipped with a 2-pole electrical system
and an alternator. System voltage is 12V.
WARNING!
Always stop the engine and break the current using the
main switches before working on the electrical system.
Isolate shore current to the engine block heater, bat-
tery charger or accessories mounted on the engine.
Main switch
IMPORTANT!
Never disconnect the current with the main switches
when the engine is running, the alternator and elec-
tronics could be damaged.
The main switches must never be switched off before
the engine has stopped. If the circuit between the alter-
nator and the battery is disconnected when the engine
is running, the alternator and electronics can be dam-
aged. For the same reason the charging circuits must
never be re-connected with the engine running.
Fuses
The engine is equipped with a strip fuse.
The fuse cut the power if the electrical system
becomes overloaded.
If it is not possible to start the engine or if the gauges
stop working during operations the fuse may have
deployed.
IMPORTANT!
Always investigate the cause of the overload. If the
fuse trips frequently, contact an authorized Volvo
Penta workshop.
Maintenance
52 47702088 05-2011
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