Analysis Of Electrical Part; Analysis Of Battery - ZONGSHEN ZS125-80 Service Manual

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.
Re s i s t a n c e v a l u e i s
smaller than standard
value.
Charging coil has
short circuit.
Measure the resistance between the export lead of charging coil with
ohmic meter.Check whether the resistance accords with the own
resistance of charging coil.
Yes
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 connecting
component to battery has
open circuit.
Yes
A d j u s t o r r e p l a c e
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 or has short circuit.
Section 2 Analysis of electrical part

2.1 Analysis of battery

Battery cannot be
charged.
Resistance value accords
with standard value.
Install the connecting component between generator
lead and vehicle cable.Remove rectifier or the
connecting component between commutated adjuster
and vehicle cable.
There is voltage show.
M e a s u r e t h e r e c t i f i e r a n d
commutated adjuster with ohmic
meter.Check whether they have
problems.
2.2 Analysis of battery
Battery cannot be
full charged
Check whether brake light
always illuminates.
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
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
Yes commutated adjuster or storage
battery to ignition switch has
R e p l a c e
short circuit.
illuminating coil.
Resistance value is
infinite.
C h a r g i n g c o i l o r
other export lead has
open circuit.
No
69