
ELECTRICAL SYSTEM
Engine
12-Volt DC
Control
Circuit
The Westerbeke 35B, 38B and 42B propulsion engines have a 12-Volt
DC
electrical control circuit, as shown
on the wiring diagrams which
follow on pages 48
to
51.
Refer to these diagrams when troubleshooting or
servicing electrical components on the engine.
.
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 electrical circuit.
Battery
Specification
The minimum recommended capacity of the battery used in the engine's 12-Volt
DC
control circuit is 90 -
125 Ampere-hours (minimum).
CAUTION
When quick-charging the battery with an external charger, be sure to disconnect the battery
cables from the battery. Leaving the charging circuit connected while quick-charging
will
damage the alternator's diodes.
Alternator
CAUTION
When testing the alternator circuit (charging circuit),
do
not use a high-voltage tester such as
a megger; damaged diodes could result.
During high-speed operation of the engine,
do
not disconnect the positive terminal
of
the bat-
tery from the B terminal
of
the alternator, nor disconnect the negative terminal of the battery
from the ground.
When cleaning the engine with a steam cleaner, be careful to keep steam away from the
al-
ternator.
Refer
to
pages 48
to
51
for the
two
electrical system wiring schematics (one
is
used for the Captains panel
and the other for the Admirals Panel).
Westerbeke Diesel
Engines
46
Komentáře k této Příručce