Installation manual
Be
GENERATOR
SINGLE
PHASE
NOTE:
WESTERBEKE
recommends that
the
following generator tests
and
adjustments
be
pelf
armed
by
a qualified
technician.
INTEGRAL
CONTROllER
(I.C.)
Testing
the
Battery
Charging
Circuit
The Integral Controller (I.e.)
is
an
encapsulated, solid-state
unit that supplies a DC charging voltage
to
the generator's
starting battery while the generator
is
opening.
Charging Voltage: 13.0 -14.0 volts DC
CbargiQgAruperage: 0
-10-
amps DC
A separate group of stator windings supplies AC voltage
to
a
blidge rectifier which converts theAC current
to
supply the
I.e. unit. The
I.C.
unit senses the needs of the starting battery
apd supplies a DC charge when one
is
needed.
If
you
suspect
that the I.e. unit
is
faulty (that
is,
if the battery'S charge
is
low), check
the
charging circuit
and
it's components
as
d~bed
in
the following steps. Check
all
connections for
cieahliness and tightness including the ground before replac-
ing.the I.e. unit.
NOTE:
When
the
generator
is
first
started,
the
J.
C.
unit
will
produce a low charging
rate.
This
charging rate will
rise
as
the
generator is operated.
1]he
Integral Controller is mounted inside the generator
hous-
ing
in
the 12:00 position. There
is
a voltage output adjust-
ment
on
the controller that
will
allow a DC voltage output
adjustment
of
± 2 volts.
+
o
BCD
and
BCDA
MODELS
DC
BRIDGE
RECTIFIER
BCDB
MODELS
VOLTAGE
OUTPUT"
ADJUSTMENT
(ON
BACK)-
_--In_.J
+
_
GND
BLACK
YElLOW
GROUND
TO
GENERATOR
CASE
AC
BRIDGE
RECTIFIER
1.
Bridge Rectifier
Normal
AC
voltage running
to
the rectifier (while the
engine
is
operating
at
1800 rpm)
is
measured across the
two
AC connections
on
the bridge rectifier. (As
illustrated).
AC voltage running
to
the bridge rectifier (approximate):
No-load off the generator 16.0 volts
AC
Full-load off the generator 17.5 volts
AC
Normal DC voltage running out
of
the rectifier (in volts
DC) is measured across the
two
DC connections of the
bridge rectifier; that is +
and
-.
DC voltage running
from
the bridge rectifier
(approximate):
No-load off the generator
Full-load
off
the
generator
2. AC winding: 0.14 ohm
17.0 volts DC
18.5
volts
DC
Lift
the
two
AC wire leads off the bridge rectifier and
measure, the resistance between these
two
leads with
an
ohmmeter. It should measure 0.14 ohm.
No
continuity
should exist between these two leads
and
the ground or
the main AC stator windings.
3. Testing the Bridge Rectifier (meter used - Simpson 260)
A. Set your ohmmeter's scale on
RX1
(+
DC) and set the
needle
to
zero.
B.
Connect the
(+)
positive lead from the ohmmeter
to
point #4. Taking the ohmlJleter's negative (-) lead,
momentarily touch points #1, #2, #3,
and
#5. The ohm-
meter should
TI;:gister
no
deflection tor
any
of
the
points touched.
C.
Remove the positive (+) lead from point #4 and
connect the negative (-) lead; momentarily touch
points #1, #2, and #3. The ohmmeter's needle should
deflect when
each
point
is
touched.
D.
Leaving the negative ohmmeter (-) lead
on
-point
#4,
touch point #5 with
the
positive
lead.
No
deflection
should take place.
E. Place the positive
(+)
lead
on
point
#1
and
the negative
(-) lead
011
point #3. The ohmmeter again should
not
register any deflection
(no
deflection indicated infinite
resistance). Reverse these connections and the ohmme-
ter should again register
no
deflection. If the rectifier
fails
any
of the previous tests (A-E), replace the recti-
fier
because it is defective.
NOTE:
Different types and/or brands
of
test meters may
produce-opposite test
results.
POINT
#1
POINT
#4
POINT
#5
MOUNTING
HOLE
Engines & Generators
BRIDGE
RECTIFIER
48