Mitsubishi MOTORS Eclipse 1997, Руководство по обслуживанию

Страница: 370 / 540

Charging System
ENGINE ELECTRICAL
(Turbo) and
This test determines if the generator output current
is normal.
(1) Before testing, be sure to check the following:
l
Generator installation and wiring connec-
tions
l
Battery (Refer to GROUP 54 Battery.)
NOTE
The battery used should be slightly discharged.
The load needed by a fully-charged battery
is insufficient for an accurate test.
l
Generator drive belt tension (Refer to
GROUP 00 Maintenance Service.)
l
Fusible link
l Abnormal noise from the generator while
the engine is running
(2) Turn the ignition switch to the OFF position.
(3) Disconnect the negative battery cable.
(4) Disconnect the generator output wire from the
generator terminal. Connect a DC test
ammeter with a range of A in series
between the terminal and the disconnected
output wire. (Connect the lead of the
ammeter to the terminal. Connect the
lead of the ammeter to the disconnected output
wire.)
Caution
Never use
clips
‘but tighten bolts and nuts
to connect the line. Otherwise loose
connections (e.g. using clips) will lead to
a serious accident
because of
high current.
NOTE
An inductive-type ammeter which enables
m e a s u r e m e n t s t o b e taken
without
disconnecting the generator output wire is
recommended.
(5) Connect a voltmeter with a range of
between the generator terminal and the
ground. (Connect the lead of the voltmeter
to the “B” terminal, and then connect the
lead of the voltmeter to the ground.)
(6) Connect a tachometer. (For the procedure for
connecting the tachometer, refer to GROUP
Engine> On-vehicle Service. refer
to GROUP Engine>
Service).
(7) Connect the negative battery cable.
(8) Leave the hood open.
(9) Check that the reading on the voltmeter is equal
to battery voltage.
NOTE
If the voltage is 0 V, the cause is probably
an open circuit in the wire or fusible link between
the generator
terminal and the battery
terminal.
the engine, and turn the headlights on.
the headlights to high beam, turn the
heater blower switch to High, increase the
engine speed to approx. 2,500
and read
the maximum output displayed on the
ammeter.
Limit: 70% of nominal output current
NOTE
l
For the nominal current output, refer to the
Generator Specifications.
l
Because the current from the battery will
soon drop after the engine is started, Step
should be carried out as quickly as
possible in order to obtain the maximum
current output value.
l
The current output ‘value will depend on
the electrical load and the temperature of
the generator body.
l
If insufficient electrical load is used while
testing, the specified level of current may
not be output even though the generator,
is normal. In such cases, increase- the
electrical load by leaving the headlights
on with the engine off to discharge the
battery before testing.
l
The specified level of current not
be output if the temperature of the
generator body and/or ambient tempera-
ture is too high. In such cases, allow the
generator to cool before testing.
reading on the ammeter should
the limit value. If the reading is the
limit value and ‘the generator output is
the generator from the engine
and check the generator.
the engine at idle speed after the
the ignition switch to the OFF
the negative battery cable.
the ammeter, voltmeter and
tachometer.
the generator output the
g e n e r a t o r terminal.
the negative battery
TSB Revision