Maintenance work on the carrier
7.17 Electrical system
09.03.2018
Maintenance manual 3 302 744 en 7 - 125
GMK5250L
Checking the connecting terminals
• Keep the batteries clean and dry.
• Remove any dirty connecting terminals (1)
and clean them.
• Fasten any loose connecting terminals.
• Grease the connecting terminals and poles
lightly with a special battery terminal
grease.
Checking the acid level
Batteries without caps (1) are maintenance-
free.
• Remove all caps (1).
The acid level must be above the plates.
If the acid level is too low
• Top it up using only distilled water until the
plates are covered.
• Tightly bolt on all caps (1).
After checking
• Push the battery box in.
• Switch on the battery master switch (1);
à Operating manual.
• Check the timers on the tachograph and on
the auxiliary heater;
à Operating manual.
• Enter the code for the radio; à Separate
operating manual
.
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