Operation
4
Drive batteries
Display_e0044a
The yellow "Rear cover monitoring" indicator
light in the display unit (see arrow) signals an
"open rear cover".
1 2 3
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Active ventilation
"Active ventilation" enables the drive battery
to be charged even when the battery hood is
closed.
Active ventilati
on ensures that the gases
produced during t
he charging process when
the battery hood i
s closed are extracted from
the truck.
Trucks with an integrated charger have a fan
(2) fitted for this purpose. The fan revolution
speed is monitored.
NOTE
Check the fan and fan grille for contamination.
Clean if necessary. Check the function of the
fan during each charging process. Replace
malfunctioning or faulty fans immediately.
Contact your service partner.
NOTE
The charging process only starts once
the required minimum speed is reached
(70% ≙ 4550 rpm).
Operating Instructions – 3888011701 EN – 12/2017 191
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