Installation manual
DUAL
OUTPUT
ALTERNATORS
DESCRIPTION
Dual
output
and
high
output
alternators
are
available
as
optional
equipment
on
most
WESTERBEKE
engines.
These
alternators
can
be
installed
during
factory
assembly
or
as
add-on
equipment
at
anytime.
Dual
alternators
can
be
configured
to
charge
two banks of
batteries
at
the
same
time
or,
using
a
battery
selector
switch,
charge
each
set
of batteries
separately.
TO
INSTALLATION
If
an
optional
dual alternator
has
already
been
factory
installed,
.
simply
follow
the
WESTERBEKE
wiring
diagram
and
the
engine
installation
instructions.
If
the
new
dual
alternator
is
being
added
to
an
existing
"in-
the-boat"
engine,
carefully
follow
the
alternator
installation
instructions
below:
1.
Disconnect
the
alternators
negative
cable
from
the
battery.
2.
Remove
the
alternator
and
disconnect or tape off
the
output
[positive]
cable.
Do
not
reuse.
3.
Install
the
new
alternator.
4.
Attach
a
new
heavy
gauge
output
cable[s]
from
the
alternator's output tenninal
[s].
Using
the
cable
sizes
indicated.
[ALWAYS
USE
FINE
STRAND
CABLE]
5.
Make
certain that
the
batteries
negative
post
ground
cable
to
the
engine
block
is
the
same
heavy
gauge
as
the
positive
cable.
6.
Mount
the
regulator to a flat
surface
in
a cool
dry
location.
a.
Connect
the
black
wire
to
the
ground
tenninal
on
the
BATTERY
11.---:::::::::=::::::---.
alternator.
TO
A
CAUTION:
Do
not
connect
any
power
source
with-
out
first
grounding
the
regulator.
h.
Plug
the
2-pin
connector
into
the
alternator,
make
certain
it
is
firmly
seated.
c.
The red
"battery
sense" wire should
be
connected
to
the
batteries positive
[+]
post
[or
the
positive
cable].
d.
The
brown
wire
"keyed ignition"
is
the
key
circuit
which
actuates
the
regulator.
this
wire
must
connect
to
a switched [+]12 volt
source.
Refer
to
the
WESTERBEKE
WIRING
DIAGRAM
for
the
proper
connection.
Dual
Pulleys
I
A
variety
of accessory pulleys for
high
powered
and
dual
charging
alternators
are
available
from
your
dealer.
~
WESTERBEKE
Engines
&
Generators
34
SPACER
TO
MOUNTING
BRACKET
DUAL
OUTPUT
ALTERNATOR
[CHARGING
ONE
BATIERy]
~=="BATTERY
SENSE"
.
TO
BATTERY
POSITIVE
POST
""";:!ID,...
KCONNECTS
TO
PINK
AND
.
BLUE
LEADS.
THE
PINK
'2-,WI,QECCINNECTS
TO
THE
BUZZER.
THE
BLUE
.
WIRE
CONNECTS
.TO
THE
OIL
PRESSURE
SWITCH,
DUAL
OUTPUT
ALTERNATOR
[CHARGING
TWO
BATTERIES]