248 Electrical System
Charging the Battery
High voltage machines that are used for
work on the vehicle can do damage to the
electrical system, especially to its electronic
components. Welding or quick-charging
machines subject the wiring to excessive
voltage, which may often result in damage
to electrical and electronic components
anywhere on the vehicle.
CAUTION
Attempting to work on electronic com-
ponents without proper equipment can
damage internal parts with static elec-
tricity.
Do not work on the electrical system
without the proper tools and training. Re-
pairwork to the electrical system must
always be done by trained professionals.
Your Volvo Truck dealer has the right tools
and trained technicians.
Jump Starting the Engine
If the batteries are discharged to the point
where they do not have enough stored en-
ergy to start the engine, they should be
recharged using a low charge current, not
to exceed 16 volts.
If the vehicle needs to be started immedi-
ately, use starting batteries. Connect the
batteries according to the information on
the previous page.
DO NOT use battery chargers with
“boosting” capability. These produce a high
voltage current that will cause damage to
the vehicle electrical and electronic
components.
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