8-224
ENGINE ELECTRICAL
-
Charging System
SERVICE
ADJUSTMENT
PROCEDURES
CHARGING SYSTEM INSPECTION
GENERATOR OUTPUT LINE VOLTAGE DROP
TEST
The test is performed to check whether the wiring
between terminal
6
of the generator and the
positive terminal of the battery (including the fusible
link) is good or not.
(1) Before the test is performed, be sure to check
the following items.
l Mounted condition of generator
l Generator drive belt tension (Refer to
GROUP 0
-
Maintenance Service.)
l Fusible link condition
l
Whether strange sound is heard from gener-
ator during engine rotation
(2) Set the ignition switch to “OFF”.
(3) Disconnect the negative cable of the battery.
0
A
0
Generator
(4)
Disconnect the output line of the generator from
terminal
6
of the generator.
(5) Connect a
O-IOOA
test DC ammeter between
terminal B and the disconnected output line in
series. (Connect the positive lead wire of the
ammeter to terminal B and connect the negative
lead wire of the ammeter to the disconnected
output line.)
NOTE:
0
Use of a clamp type ammeter is recom-
mended, as it allows measurements to be
made without disconnecting the output line
of the generator. Why is a clamp type
ammeter recommended? When you check a
vehicle in which a low output current exists
due to incompletely connected terminal B of
the generator, you may be unable to detect
the cause of the trouble, because direct
loosening of terminal B and connection of an
ammeter to terminal B completes the con-
nection.
(6) Connect a digital voltmeter between terminal B
of the generator and the positive terminal of the
battery. (Connect the positive lead wire of the
voltmeter to terminal B and connect the nega-
tive lead wire of the voltmeter to the positive
the battery
1
terminal of
Ammeter
0
“B”
0
terminal-
v
0
Voltmeter
6EN0892
d
I
I
”
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