Geely JL481Q, Руководство пользователя, Страница: 180 / 198

1. No charging completely
The alternator doesn’t generate electricity: open circuit or short circuit occurs in rectifier diode, open circuit and short circuit
is found in the rotor winding and stator winding, leading to a bent rotor axle, excessively worn brush, dirty or worn sliding
ring, bearing damage, etc, all of which may disable the power generation of alternator.
Input voltage of the alternator is too low: when the output voltage of the alternator is below the terminal voltage of the
battery, the charging indication light is On permanently. The main causes include: the excitation electricity is too low, the
electromotive force of three phase alternator or output voltage of the rectifier is decreased and the alternator rotating speed
is low. During operation, if the output voltage of the alternator is too low, check belt of the alternator for looseness or
skidding. Check if there is diode damaged in the rectifier, check if contact between carbon brush and rotor slide ring is not
good, check if there is local short circuit in the excitation winding and three phase stator winding and check if the connector
of leading wire is loose. If the alternator works well, it indicates that the malfunction occurs in the voltage regulator. Check
it and replace it if necessary.
2. Low charging current
The insufficiency of generation volume and too small charge current causes a severe shortage of electricity in battery. This
phenomenon mainly originates from a malfunctioning voltage regulator. Malfunctions include an electricity regulation out of
order and failure to establish a working voltage due to the lack of adequate excitation electricity. The voltage of the regula-
tor is regulated to an excessively low level, internal resistance increases or the large power triode malfunctions in switching
characteristic, thus impeding the formation of excitation current, not only lowering the output voltage of the alternator but
also heating the voltage regulator due to incrppppease of inner consumption.
4. Active substance falling off in large amount: Charging of high current will cause electrolysis of pure water, producing
vast amount of oxygen and hydrogen. When hydrogen rushes out from the pores of the negative plate, the active
substance will fall off in large amount. When electrolyte density increases and lead dioxide of t6570he positive plate falls
off, brown substance of the electrolyte will go up to the surface of the electrolyte. Empty all the electrolyte when this
phenomenon occurs. Rinse the battery with distilled water for several times to removeimpurities, then refill electrolyte and
recharge the battery.
Section 3 Normal Malfunction of Charging System
and Troubleshooting
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