Maintenance work on the carrier
7.17 Electrical system
07.12.2017
Maintenance manual 3 302 649 en 7 - 115
GMK4090
Checking the connecting terminals
• Keep the storage batteries clean and dry.
• Release 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 covers (1) are maintenance-
free.
• Remove all covers (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.
• Screw on all caps (1) tightly.
After checking
• Close the cover on the battery box.
• Switch on the battery master switch (1).
• Check the timers on the tachograph and the
auxiliary heater;
à Operating manual.
• Enter the code for the radio; à Separate
operating manual
.
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