Jump-Starting - Mercedes-Benz Unimog Operating Instructions Manual

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To fill with compressed air: remove cap
on inflator connection :.
X
Refill at filler connection :. When doing
so, the filling pressure must correspond to
the pressure of brake circuit 1 or brake cir-
cuit 2, see the compressed-air system
operating data ( Y page 357).
Jump-starting, tow-starting and tow-
ing away

Jump-starting

Important safety notes
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery.
G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Observe the following notes. You could
otherwise damage the battery or electronic
components in the vehicle:
do not use a battery quick-charge unit for
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jump-starting.
if you use a mobile battery charger (bat-
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tery device with mains power stage),
remove the mains plug before jump-
starting.
only have jump-starting provided by vehi-
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cles with a 24 V system.
use jump leads which are protected
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against polarity reversal and with a wire
Jump-starting, tow-starting and towing away
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! When you remove the jump leads, let the
engine of the vehicle being jump-started
idle. This avoids damage being caused to
the vehicle electronics.
! Do not connect the negative terminal
clamp of the jump lead to the chassis
frame. Otherwise, engine or transmission
components can be damaged.
H
General notes
Observe the safety notes and protective
measures when handling the battery
( Y
After jump-starting, have the batteries
checked at a qualified specialist workshop.
cross section of approximately 35–
2
50 mm and insulated terminal clamps.
if the outside temperature drops below
Ò10 †, a discharged battery could freeze.
Do not start the engine under these cir-
cumstances. Let the battery thaw out
first.
Environmental note
Batteries contain pollutants.
It is against the law to dis-
pose of them along with
household waste. They must
be collected separately and
recycled in an environmen-
tally responsible manner.
Dispose of batteries appro-
priately. Hand over dis-
charged batteries to a quali-
fied specialist workshop.
Transport and store full bat-
teries in an upright position.
When transporting batteries,
secure them so that they do
not tip over. Note that bat-
tery acid could escape into
the environment through the
ventilation openings in the
stoppers.
page 306).
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