WEICHAI WD10 Service Manual - page 139
Service Manual for WD10 Diesel Engine
129
e) Generator produces abnormal sound
Fault 5: Generator produces abnormal sound
Phenomenon
Fault detection
Troubleshooting
Running generator produces
abnormal sound
a. Generator fixed support is
deformed or interfered with
other parts.
b. Generator belt is loose and
slipping.
c. Generator pulley is loose.
d. Generator bearing lack of
lubricating oil or is damaged.
e. Deep abnormal noise comes
from generator inside.
f. Howling noise comes from
generator inside and changes
with generator speed.
a. Improve generator fixed
support
installation
strength
and
adjust
installation condition.
b. Replace generator belt.
c. Fasten the pulley.
d. Replace generator bearing.
e. Stator coil is in short
circuit, replace it.
f. The abnormal sound is
produced
by
vibrating
stator core, replace the
stator module if necessary.