Westerbeke W-70GA Manual de instalación Pagina 28
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Valorado. / 5. Basado en revisión del cliente
ALTERNATOR
TESTING
DESCRIPTION
The
charging system consists
of
an alternator with a voltage
regulator,
an engine
DC
wiring harness, a mounted
DC
cir-
cuit
breaker and a battery with connecting cables. Because
of
the use
of
integrated circuits (IC's), the electronic voltage
regulator is very compact and is mounted internally
or
on
the
back
of
the alternator.
1.
Start
the Engine.
2. After a few minutes
of
running measure the starting bat-
tery voltage
at
the battery terminals using a multi-meter
set on
DC
volts. .
The voltage should be
inc~easing
toward 14 volts.
If
it is,
the
alternator
is working. Turn to Step 4
( 14.0)
o
COM
,
MULTIMETER
~iS===:::
#10
RED
.
TO
STARTER
SOLENOID
#14
VIOLET
TO
CHOKE
TROUBLESHOOTING
I·
A
WARNING:
A failed
alternator
can
become
very
hot.
Do
not
touch
until
the
alternator
has
cooled
down.
This
troubleshooting section is to determine
if
a problem
exists with the charging circuit
or
with the alternator.
If
it
is
determined that the alternator
or
voltage regulator is bad,
it
is
best to have a qualified technician check it
out
The alternator charging circuit charges the starting battery and
the service battery.
An isolator with a diode, a solenoid,
or
a
battery selector switch is usually mounted in the circuit to iso-
late the batteries so the service battery is not discharged along
with the service battery.
If
the alternator is charging the start-
ing
battery but not the service battery,. the problem is in the
service battery charging circuit and not with the alternator.
Testing
the
Alternator
A
WARNING:
Before
starting
the
engine
make
certain
that
everyone
is clear of
moving
parts!
Keep
away
from
sheaves
and
belts
during
test
procedures.
A
WARNING:
MULT/METERS
AND
DC
CIRCUITS:
DC
and
AC
circuits
are
often
mixed
together
in
marine
applications.
Always
disconnect
shore
power
cords,
isolate
DC
and
AC
converters
and
shut
down
generators
before
pedorming
DC
testing.
No
AC
tests
should
be
made
without
proper
knowledge
of
AC
circuits.
TESTING
THE
STARTING
BATTERY·
ALTERNATOR
(ENGINE
RUNNING)
_
GROUND
3.
If
the starting battery voltage remains around
12
volts
after the engine is started and
run
for a few' minutes, a
problem exists with the alternator
or
the charging circuit.
a.
Thrn
off the engine. Inspect all wiring and connections.
Ensure that the battery terminals and the engine ground
connections are tight and clean.
A
CAUTION:
To
avoid
damage
to
the
battery.
charging
circuit,
never
shut
off
the
engine
battery
switch
when
the
engine
is
running!
b.
If
a battery selector switch is in the charging circuit,
ensure that
it
is
on
the correct setting.
c.
Turn
on the ignition switch, but do not start the engine.
d. Check the battery voltage.
If
your battery is in good
condition the reading should be 12 to
13
volts.
TESTING
THE
ALTERNATOR
VOLTAGE·
(IGNITION
ON
-
ENGINE
OFF)
(g])
0~_-.MULTIMETER
COM
+
;a
Engines & Generators
-=-
GROUND
22
- OPERATORS 1
- WARNING 2
- INSTRUCTIONS 3
- INSTALLATION 6
- CONTENTS 7
- "ii; 8
- EXCHANGER--k--...p!!J~ 8
- ~2¥fii4;l:143=t 9
- INTRODUCTION 10
- Engines & Generators 10
- It allows 11
- DESCRIPTION 12
- INSPECTION 13
- CAUTION: 13
- Stopping 16
- Procedure 16
- MAINTENANCE 18
- SCHEDULE 18
- As the engine 19
- & Generators 19
- COOLING 21
- 3. Remove 22
- LUBRICATING 23
- CARBURETOR 26
- 0~_-.MULTIMETER 28
- "BATIERY 30
- SENSE" 30
- ALTERNATORS 31
- W ALARM 32
- TACHOMETER 34
- /' 36
- TESTING 37
- RESISTANCE 37
- TROUBLESHOOTING 38
- ~~~~'!.fJ 42
- 'Mi7J 42
- TRANSMISSION 43
- CONNECTIONS 44
- COUPLINGS 44
- CHECKING 45
- OPERATING 45
- Lay-up/Winterize 51
- Problem 52
- Probable 52
- VerificationJRemedy 52
- Sta-Bil gasoline 54
- BioBor and Sta-Bil should 54
- STANDARD 59
- CONVERSION 59
- I I I I I 60
- I I I I I I I 60
- I I I I 60
- I I I I I I I I 60
- SUGGESTED 61
- WM/DW1081-5/04 64
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