Installation manual
DUAL
OUTPUT
ALTERNATORS
BALMAR
REGULATOR
TROUBLESHOOTING
NOTE:
Before
troubleshooting,
make
certain that
the
drive
belts
are
tight
and
the batteries
are
in
good
condition.
Regulator
Testing
The
red
"battery sensing"
wire
A connects
to
the
battery,
it
must
always
read
battery
voltage.
If
battery
voltage
is
not
present, trace
the
wire
for
a
bad
connection.
The
white
wire S should
read
0
volts
with
the
key
off,
12
volts [approximately]
with
the
key
on.
If
the
readings
are
incorrect,
trace
the
wire
for
a
bad
connection.
The
blue
wire F supplies current
to
the alternator
fields,
its
voltage
will
vary
depending
on
the
battery
charge
or
actual
load/rpm. The readings
can
vary
from 4 to
12
volts
with
the
key
on,
0
volts
with
the
key
off.
KEY
ON
•
NO
VOLTAGE
REGULATOR
IS
DEFECTIVE
KEY
OFF·
BATTERY
VOLTAGE
REGULATOR
IS
DEFECTIVE
REGULATOR
TEST
POINTS
AND
PROPER
VOLTAGE
•
Ignition
Off
1
Ignlllon
On
Terminal/Color
Engine
Running'
I
Brown
Dvolts
2
·12
volls
14.2
volts
A
Red
12.6
volts
12
volls
14.2
volts
S
While
o
volts
o
volts
6·8
volts
F
Blue
Ovolts
10
·11
volls
4·12volts
All.
Oulpul
12.6
volts
12
volts
14.2
volls
Alternator
Testing
The regnlator
Is
functioning properly and
the
batteries
are in good condition. .
1.
Test
the voltage at
the
alternator
plug
with
the
engine
off-key on. The
voltage
at the
alternator
terminal F
and
the
voltage in
the
plug
[blue
wire
F]
from
the
regnlator
should
read the
same.
2.
Hold a screw
driver
close
[1/2"]
to
the
alternator
pulley.
If
voltage
is
present
you
should
feel
the
magnetic
field.
If
not,
the problem
may
be
the
brushes
[worn]
or
the
rotor
[open
circuit].
3.
Start the
engine,
at
fast
idle
the
output
ternrinals should
indicate
14.2
volts
[no
load].
A
reading
of 12.6 would
indicate the alternator
is
not
performing
properly.
Apply
a load
such
as
an
electric bilge pump, the
voltage
should
maintain
at
least
13.8
volts.
13
volts or less
indicates the
alternator
is
faulty.
NOTES:
o
When
the engine
is
first
started,
it takes a
lew
moments
for
the
alternator
to
"kick in" and
take
the load
fa
noticeable change
in
the
sound
of
the
engine
J.
o A slight whine
from
the
alternator
when
the load
is
normaL
o
When
the alternator
is
producing high amperage, it will
become very
hot.
o
When
replacing
the
alternator
drive
belts,
always
purchase and
replace
dual belts
in
matched pairs.
NOTE:
For additional information
on
regulators and
alternators, contact www.BALMAR.COM.
~
WESTERBEKE
Engines & Generators
328