SC
SC
SC
SC Battery
Battery
Battery
Battery and
and
and
and Charging
Charging
Charging
Charging System
System
System
System
- 13 -
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Test
Test
Test
Test
Precautions
Precautions
Precautions
Precautions of
of
of
of generator
generator
generator
generator maintenance
maintenance
maintenance
maintenance
For the output current of generator is generated by
stators and rectified by rectifier diodes, please pay
attention to following aspects in generator inspection
and regulation:
1. Pay attention to generator ground polarities and it
is not allowed to connect reversely. In the case of
reverse connection of generator and battery
polarities, it leads to positive conduction of
power diode and the diode is burnt by the large
current goes through it. Therefore, correct
polarities are necessary in battery replacement.
2. It is not allowed to use screw drivers or wires to
ground output terminal and housing of generator
for live wire test. For instant large current or high
voltage electromotive force generated by
induction may puncture or burn down the power
diode.
3. It is not allowed to connect two terminal posts for
test with screw drivers or wires or there shall be
fast rise of generator voltage which may lead to
voltage regulator damage.
4. In the case of fast charging with large current
from AC generator to battery, when the charging
current is discovered getting smaller or ever
being close to 0, please verify for the existence of
faults in charging part. In the case of voltage
regulator fault or excessively high voltage
regulation, please carry out maintenance as soon
as possible to avoid early damage in battery and
electric appliance of generator field winding.
5. In the joint operation of generator and voltage
regulator, the output voltage is very stable.
However, in the case of their inspections and
applications, they should be connected to
on-board battery in parallel for application. When
the generator is outputting a large current, sudden
disconnection with battery may generate an
excessively high peak voltage. In this case, even
there is only a short-time existence of the peak
voltage, it may lead to damage of other electronic
parts. Therefore, pay attention to relevant
inspection and application, do not disconnect the
connection of generator in operation with battery
at any case.
6. It is necessary to guarantee the reliable
connection of the connecting ground wire
between the generator and chassis.
7. It is not allowed to ground the power supply lead
in the operation of generator or it may lead to
harness burn.
8. In generator inspection, it is necessary to fill the
generator sealed bearing with sufficient No.2
lithium base grease before the next maintenance.
9. It is not necessary to maintain the voltage
regulator, In the case of its damage, replace the
voltage regulator assembly.
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