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6H-8 CHARGING SYSTEM
16.0
15.5
15.3
15.0
14.5
14.2
14.2
14.0
13.5
13.0
-30
0
25
14.8
14.8
13.3
135
[B]
3) Ground F terminal and start engine, then measure voltage at
B terminal as shown in left figure.
• Voltage is higher than standard value
It is considered that generator itself is good but IC regulator
has been damaged, replace IC regulator.
• Voltage is lower than standard value
Generator itself has problem, check the generator.
LOAD CHECK
1) Run engine at 2,000 rpm and turn on head light and heater
motor.
2) Measure current and if it is less than 20 A repair or replace
generator.
OVERCHARGED BATTERY
1) To determine battery condition, refer to Battery section.
2) If obvious overcharge condition exists as evidenced by
excessive spewing of electrolyte, measure generator B ter-
minal voltage at engine 2000 rpm.
3) If measured voltage is higher than upper limit value, disas-
semble generator.
4) Check ground of brushes. If brushes are not grounded,
replace IC regulator. Then check field coil for grounds and
shorts.
A: Regulated voltage (V)
B: Heatsink temperature (°C)
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