Care - Mercedes-Benz Unimog Operating Instructions Manual

Battery fluid level
Max. mark
:
Min. mark
;
Observe the safety notes on handling batter-
ies.
X
Remove the battery cover (
X
Unscrew and remove the battery cell caps.
X
Check the battery fluid level and correct it if
necessary.
The fluid level in each battery cell must be
approximately 15 mm above the top of the
plate. Observe the min. and max. markings
on the side of the battery compartment.
X
Screw in the battery cell caps.
X
Connect the battery cover (
Battery care
! Please observe the following points:
Dirty battery terminals and battery sur-
R
faces cause leak currents, which lead to
the batteries discharging. Always keep
the battery terminals and battery surfa-
ces clean and dry. Lightly grease the bat-
tery terminals, especially the undersides,
with acid-resistant grease.
Only clean batteries with the cell caps
R
fitted. Otherwise, dirt can enter the bat-
tery cells.
Cleaning agents containing fuel corrode
R
the battery housing. Only clean the bat-
tery housing with commercially available
cleaning agents.
R
R
Charging the batteries
G
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
Y page 307).
ventilation while charging and jump-starting.
Do not lean over a battery.
G
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.
Y page 307).
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Use a commercially-available battery
charger to charge the batteries. Make sure
that the charging voltage is correct. Do not
charge new batteries with rapid charging.
The charge current of used batteries should
be maximum 75 % of the battery capacity
for rapid charging. Otherwise, you could
damage the batteries.
The charging current must not exceed 10% (or
a maximum of 75% when rapid-charging) of
the battery capacity. Do not rapid-charge new
batteries.
Observe the safety notes on handling batter-
ies.
X
Unscrew and remove the battery cell caps.
X
Disconnect the battery terminals
(
The vent holes of the cell caps must be
open. Otherwise, gases cannot escape.
Clean blocked vent holes with a suitable
tool, e.g. a piece of wire. Unscrew the cell
caps first. Otherwise, there is the risk of
a short circuit.
Recharge batteries that are not in use
with a no-load voltage of less than 12.4 V.
WARNING
WARNING
Y page 308).
Maintenance
Z
309