188 678.1 - RHB LEXION 480 2.5.1
Engine electric system
ENGINE ELECTRIC SYSTEM
Alternator
ATTENTION!
For all work on the engine, the following
points must be observed:
– Never disconnect the cables connecting the alter-
nator and battery whilst the alternator is running.
– Ensure correct polarity when connecting the
cables to the battery as otherwise the diodes will
be burnt out.
– Do not carry out any work on live parts unless the
engine is stopped and the battery cables are
disconnected.
– Do not under any circumstances flash
connections to check current flow on three-phase
alternators. This will damage the semiconductors.
– When performing electrical welding work on the
machine, the alternator must be disconnected.
– The battery provides the current for the field
excitation required to start the alternator via the
battery charge indicator bulb. Blown bulbs must
therefore be replaced to ensure reliable field
excitation.
(Fig. 1)
1
Engine electric system
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