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BA_BM_ML-120_EN_12-23.docx
12.3
Charging the Battery Unit
•
Disconnect the system plug (
S
) of the Mobile Lifter from the battery unit (
B
).
•
Plug the earthed plug of the charger into a 230 VAC socket.
•
Insert the charging plug (
L
) into the battery unit (
B
) of the Mobile Lifter.
•
After that, the display of the battery charger alternately indicates various information about the internal
program of the charger: After the display “
SPE
”, the software version installed in the unit is shown and then
the following parameters in sequence: Battery voltage, charging current, number of charging curve and fi-
nally the message “
GEL
” or “
Acd
”, depending on whether the charging curve entered corresponds to her-
metic GEL batteries (“
GEL
”) or lead acid batteries (“
Acd
”)
.
•
Check whether the type shown in the display corresponds to the battery type
→
The display must indicate “
Acd
”
, as two lead-acid batteries are installed in the ML-120 Mobile Lifter
(
If the display indicates “
GEL
”, there is an error and
the unit must not be used!).
•
At this point, an internal test is carried out on the battery voltage to decide whether the charging process
can be started or not.
•
If the battery is not properly connected to the charger, the message
“
bat
” appears in the dis
play. This mes-
sage remains even in the event of a negative test result (e.g. reversed polarity or incorrect connection to
the battery). If the test is positive, the display indicates the battery voltage value for about five seconds and
the charging process starts.
•
The progress of the charging cycle is indicated by three control LEDs red (
3
), yellow (
4
) and green (
5
). At the
end of charging, when the LED (
5
) is green, disconnect the supply cable of the charger from the socket and
from the battery unit (
B
) of the Mobile Lifter.
•
Reconnect the system plug (
S
) of the Mobile Lifter to the battery unit (
B
).
•
Work can now be started or continued.
12.4
Possible Faults
Fault
Check / Remedy
The charger does not switch on.
Check that the mains cable is plugged into the socket
and that the internal fuse has tripped.
Charging cycle does not start and
bat
is indicated
Check battery connection and polarity.
The yellow LED (
4
) does not light up even after 15
hours of charging time and the display shows
E03
.
Check battery for external damage and components.
E01
appears in the display.
The maximum permitted battery voltage has been
exceeded. Charging is interrupted.
On chargers with a thermal protection switch,
the message
E02
is indicated
The maximum permitted temperature has been ex-
ceeded. Charging is interrupted.
E03
appears in the display.
The maximum permissible duration for the charging
time has been exceeded. Charging is interrupted.
SCt
appears in the display.
The protection timer has interrupted charging.
Srt
appears in the display.
The maximum duration for the charging time has been
Possible internal short circuit.
12.5
Additional notes on Lead-Acid Batteries
The lead-acid batteries used in the Mobile Lifter are maintenance-free (no refilling required).
Caution!
The gases emitted during charging are explosive. Do not smoke in the immediate vicinity of the
batteries. Avoid naked flames and sparks when working with cables and electrical equipment.
Caution!
The acid contained in the battery is corrosive. In case of contact with the acid from the battery,
rinse the affected area with tap water and consult a doctor immediately. Always wear protective goggles
and gloves when working on the batteries.