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Section 2
Resistance value is smaller than
standard value.
Charging coil has
s h o r t c i r c u i t.
Set multimeter to 0 ～20V DC voltage.Measure the voltage
between the lead ends from the connecting component to
battery(normally it's red wire) and ground
There is no voltage show.
The lead from con-
necting component to
battery has open
circuit.
Adjust or replace brake switch.
[1]Check whether the electrolyte of storage battery is enough.
[2]Check whether the electrolyte density of storage battery is too small.
[3]Check whether plate of storage battery has too much pbso
short circuit.
Analysis of electrical part
2.1
Analysis of battery
Battery cannot be
charged.
Remove the connecting part between the generator lead and vehicle cable.
Measure the resistance with ohmic meter and check whether the resistance
between export lead of charging coil accords with the standard value.
Resistance value accords
with standard value.
Install the connecting component between generator
lead and vehicle cable.Remove rectifier or the connect-
ing component between commutated adjuster and
vehicle cable.
Measure the resistance between the export lead of charg-
ing coil with ohmic meter.Check whether the resistance
accords with the own resistance of charging coil.
Yes
There is voltage show.
Measure the rectifier and com-
mutated adjuster with ohmic
meter.Check whether they have
problems.
2.2
Analysis of battery
Battery cannot be full
charged .
Check whether brake light al-
ways illuminates.
Yes
Set ignition switch to OFF position.Remove cathode wire from
storage battery.Connect the cathode end of current meter to the
cathode of storage battery and anode end to the anode of storage
battery.Check the leakage of electric current.
The value of electric current leakage is
smaller than the stated value.
Check whether the charging coil of generator has
short circuit.
No
4
The circuit from generator to rectifier or
between commutated adjuster has open
circuit or bad connection.
No
The value of electric current leakage is bigger than
the stated value.(Normally,the electric current is
required to be below 1mA）
The circuit from rectifier or
commutated adjuster or
Yes
storage battery to ignition
Replace illuminat-
switch has short circuit.
ing coil.
or has
Resistance value is infinite.
Charging coil or other ex-
port lead has open circuit.
No
63
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