
CAUTION
DO NOT
use a scoop-type through-hull fitting as a means
of
supplying sea water
to
the gen-
erator. Water pressure against this type fitting, while the vessel is under way, can push sea
water past the sea water
pump's
impeller into the generator's exhaust system, filling it and the
engine as
well. Flush-type, clear, through-hull fittings are recommended and should be lo-
cated on the
hull so as
to
be below the watertine during all angles
of
boat operation.
The use of common-type street elbows
is
not recommended for plumbing the sea water circuit. These
generally have very restrictive inside diameters. Machined fittings with true inside diameters are preferred.
Electrical
System
The electrical system should be checked
to
make sure all wiring harnesses are property tied
down
with
clamps
or
plastic ties and that all wiring harnesses are spaced at intervals close enough
to
prevent chafing
from vibration. Check
to
make sure all engine harness connections are tight and that they are made
to
the
appropriate terminals.
DC
Electrical
Connections
A common ground for the negative
(-)
DC
terminal connection is found at the bell housing
of
the generator,
next
to
the starter, in the form
of
a threaded grounding stud. The battery ground should be connected at
this stud.
Connect the battery's positive
(+)
connection to the starter solenoid tagged for this connection.
CAUTION
To avoid an overcharging condition, and a possible equipment failure, DO NOT disconnect
the
DC
battery source while the engine
is
running.
Grounding
The generator set must be grounded
to
comply with United States Coast Guard regulation 33 CFR-183 which
specifies that a common conductor be connected between the generator set and the vessel's main propul-
sion engine's grounded starter motor circuit. This conductor (the common ground) prevents accidental pas-
sage
of
cranking current through fuel systems and smaller electrical conductors common
to
the engines.
This conductor must be the same size as the largest battery cable.
Automatic Shutdown
High Exhaust Temperature Shutdown Switch (normally closed)
An
exhaust temperature switch
is
located on the exhaust elbow. This switch will open and interrupt the
DC
voltage
to
the ignition coil (which turns OFF the engine), should the switch's sensor indicate an excessive
exhaust temperature (an inadequate supply
of
sea water coolant causes high exhaust temperatures). This
switch opens at
260 - 270
0
F (127
-132
0
C)
and resets at approximately 225
0
F (107
0
C).
Westerbeke
Generators
28
Comentarios a estos manuales