Hyundai HL630VL, Operator'S Manual

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Troubles Shooting 6-5
Characteristics of faults Cause Remedy
Generator not working, or
output low voltage
Commutator oil stained or worn
Wipe using clean cloth dipping with
gasoline, or grind using #00 emery
cloth
Remanence coil open circuit
Check external magnetic field , and
check exciting circuit using light bulb
Remanence disappeared
Perform magnetizing or replace with
new generator
Generator overheat Bearing worn or lubrication oil
inadequate
Replace and add lubrication oil
Commutator or armature coil short-
circuited internally
Disassemble generator and check
commutator and armature coil , and
eliminate the short-circuit faults
B a t t e r y n o t c h a r g e d o r
charged at low flow
Generator magnetic field coil short-
circuited or open circuited
Generator magnetic field connected
well, and resistance of magnetic field
coil is about 20Ω
The positive pole connecting wire
dropped off
Turn on the electric lock but do not
start, there should be 24V on the
generator “+” pole
Battery connecting wire too loose or
dropped off
Visual check and tighten the wire
Generator transmission belt too loose Visual check and tighten the wire
Battery charge time too long
1. Battery feed supply severely
2. One or two cells in the battery
short-circuited or damaged
3. Generator negative pole connecting
wire dropped off
Start the generator and use multimeter
to check charge current or battery
voltage. If the charge current is too
large and battery voltage is below 25V,
the battery is in fault. If the generator
“+” pole voltage is greater than 30V,
check generator “-” pole grounding
for the normality. Connect voltmeter
“-” pole to ground and “+” pole to
generator “-” pole. If there is voltage
indication on voltmeter, the Grounding
wire is open circuited.. Otherwise, the
problem is in the generator.
No indication on electric
sensing instrument
Instrument damaged Replace instrument
Sensor damaged Replace sensor
Generator or battery is in fault
Check whether the terminal voltage of
generator or battery is normal
Sensor drops off Re-tighten it
ELECTICAL SYSTEM