Operation Manual of WEICHAI GENSET
4 Troubleshooting
Overall introduction
GENERAL
The genset control continuously
monitors engine sensors for abnormal
conditions, such as low oil pressure and
high coolant temperature. If any of these
conditions occur, the control will light a
yellow Warning lamp or a red Shutdown
lamp and display a message on the
digital display.
or near battery—Wear goggles—Stop
genset and disconnect charger before
disconnecting battery cables—
Disconnect negative (−) cable first and
reconnect last.
Disconnect battery charger from AC
source before disconnecting battery
cables. Otherwise, disconnecting cables
can result in voltage spikes damaging to
DC control circuits of the generator set.
Accidental starting of the generator set
can cause severe personal injury or
death. Prevent accidental starting by
disconnecting the negative (−) cable
from the battery terminal.
Safety tips
SAFETY CONSIDERATIONS
Contacting high voltage components
may result in severe personal injury or
death. Keep the output box covers in
place during troubleshooting.
High voltages are present when the set is
running. Do not open the generator
output box while the set is running.
Ignition of explosive battery gases can
cause severe personal injury or death.
Arcing at battery terminals, light switch
or other equipment, flame, pilot lights
and sparks can ignite battery gas. Do not
smoke, or switch trouble light ON or OFF
near battery. Discharge static electricity
from body before touching batteries by
first touching a grounded metal surface.
When troubleshooting a set that is shut
down, ensure that the generator set
cannot be accidentally re- started as
follows:
1. Move the O/Manual/Auto switch on
the control panel to the O (off) position.
2. Turn off or remove AC power from
the battery charger.
3. Remove the negative (−) battery
cable from the generator set starting
battery.
Ventilate battery area before working on
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