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Maintenance: Electrical system
Electrical system
The engines are equipped with a bi-polar electrical system with alternating current generator. System voltage is
12 alternativly 24 V.
WARNING! Before starting work on the electrical system, the engine must be stopped and the powered
turned off with the main switch/switches. Shore power to the engine heater, battery charger or other extra
equipment fitted on the engine must be disconnected.
Main switches
The main switches must never be turned off until the
engine has been stopped. Breaking the circuit be-
tween the alternator and the batteries while the en-
gine is running can damage the alternator. For the
same reason, the charge circuits must never be
switched while the engine is running.
IMPORTANT! Never turn the power off using
the main switches while the engine is running.
Electrical connections
Make sure electrical connections are tightened, dry
and free from oxide. If necessary, spray these con-
nections with water-repellant (Volvo Penta all-round
oil).
Fuses
Two semi-automatic 8A fuses are located in the main
electric terminal box. Fuses cut the current when
there is an overload and are reset by pressing the
buttons on the side of the main electrical terminal
box. Determine the cause of the overload before re-
setting the fuses.
Summary of Contents for TAMD74A
Page 1: ...OPERATOR S MANUAL TAMD63L P TAMD74A ...
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