CH0732
from Terminal B
Disconnect Wire
B
Ammeter
Voltmeter
Alternator
Battery
P17618
Terminal F
CH--4
--
CHARGING
CHARGING SYSTEM
8.
INSPECT CHARGING CIRCUIT WITHOUT LOAD
HINT:
If a battery/alternator tester is available, connect the tester to
the charging circuit as per manufacturer’s instructions.
(a)
If a tester is not available, connect a voltmeter and amme-
ter to the charging circuit as follows:
S
Disconnect the wire from terminal B of the alternator
and connect it to the negative (--) lead of the amme-
ter.
S
Connect the positive (+) lead of the ammeter to ter-
minal B of the generator.
S
Connect the positive (+) lead of the voltmeter to ter-
minal B of the alternator.
S
Ground the negative (--) lead of the voltmeter.
(b)
Check the charging circuit as follows:
With the engine running from idle to 2,000 rpm, check the
reading on the ammeter and voltmeter.
Standard amperage:
10 A or less
Standard voltage:
13.8 -- 14.7 V at 25
˚
C (77
˚
F)
If the voltmeter reading is more than the standard voltage, re-
place the voltage regulator.
If the voltmeter reading is less than the standard voltage, check
the voltage regulator and generator as follows:
S
With terminal F grounded, start the engine and
check the voltmeter reading of terminal B.
S
If the voltmeter reading is more than the standard
voltage, replace the IC regulator.
S
If the voltmeter reading is less than the standard
voltage, check the alternator.
9.
INSPECT CHARGING CIRCUIT WITH LOAD
(a)
With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater blower switch at
”HI”.
(b)
Check the reading on the ammeter.
Standard amperage:
30 A or more
If the ammeter reading is less than the standard amperage, re-
pair the alternator.
HINT:
If the battery is fully charged, the indication will sometimes be
less than the standard amperage.
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