Operating instructions
THE
BATTERY
CHARGING
CIRCUIT
The
DC
Circuit
on
the
BCGB
functions
to
start, operate
and
stop the generator's engine. The circuit
is
best understood
by
reviewing the DC Wiring Diagram
and
Wiring Schematic.
The engine's
DC
wiring is designed with three simple basic
, circuits:
start,
run
and
stop.
The engine
has
a
12
volt
DC
electrical control circuit that
is
shown
on
the
WIring
Diagrams. Refer
to
these diagrams
when
troubleshooting or when
serviQing
the DC electdcaI
system
or
the engine.
BATTERIES
A
CAUTION:
To
avoid
damage
to
the
battery
charg-
Ing
clrcut,
never
shut
off
the
engine
battery
switch
while
the
engine
is
running.
Shut
off
the
engine
battery
switch,
however,
to
avoid
electrical
shorts
when
work-
ing
on
the
englne~
electrical circuit.
Specifications
The recommended capacity
of
the "dedicated" starting battery
used for the engine's 12VDC circuit
is
600-800 C.C.A.
BATTERY
CHARGER
The generator supplies a continuous
17
amp charge from
its battery charger
to
the starting battery.
To
test the battery
charger, put a multimeter between the positive
(+)
and
negative H leads
to
the battery. It should indicate l3.0V to
i3AV with the engine running.
If
only the battery voltage
is
indicated, check that the battery charger terminal
connections are tight With the unit
runiling, test between
the
(+) and (-) terminals for 13.0V
to
13AV.
If
no
charge
is
indicated, replace the charger.
RED
TO
CIRCUIT
BREAKER
GREEN
H
BRIDGE
RECTIFIER
TO
GROUND
Battery
Maintenance
Review
the manufacturer's recommendations
and
then
estab-
lish
a systematic maintenance schedule
for
your
engine's
starting
batteries
and
house
batteries.
• Monitor
your
voltmeter
for
proper charging
during
engine
operation.
• Check the electrolyte
level
and specific
gravity
with
a
hydrometer.
• Use
only
distilled
water
to
bring electrolytes
to
a proper
level.
• Make certain that
battery
cable connections
are
clean
and
tight
to
the
battery
posts
(and
to
your engine).
•
Keep
your batteries
clean
and
free of corrosion.
A
WARNING:
Sulfuric
acid
in
lead
batteries
can
cause
severe
burns
on
skin
and
damage
clothing.
Wear
protective
gear.
GENERATOR
CONTROL
PANEL
r - - - -
--
- - - -- - -
--
-
--
-- -
--
-- -
--
- - - -- - - - - - - -- - -- -- - -
--,
J
IDC
I
DEVOLTAGE
OUTPUT";:\;'
10.,
'
ADJUSTMENT
POT
:i;';:~)f,
.
:I".l.·n~
...
"~'.'I'
. "
1'\C':'tF'<I
"~
C.WTO
INCREAS.~
..
J'i'/;)""';~J
C.C.W
TO
DECREASE
L~,i~'S
TESTING
THE
BATTERY
CHARGER
I
30A
'
AC
iCHARGE
I
I At
-J>I-
-
I.e.
i
I I
I
INTEGRAL
CONTROLLER
:
I I
I
Hz,
1
l
___________________________
....J
Engines & Generators
18