Maintenance – electrical system
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27 Maintenance – electrical system
If the basic safety instructions are not followed, people may be seriously injured or
killed.
• To avoid accidents, the basic safety instructions in the chapter Safety must have been read
and followed, see chapter Safety "Basic safety instructions".
Danger to life due to exploding battery gas!
Highly explosive battery gas may escape from the battery.
• Keep ignition sources and naked flames away from the battery.
• Observe the correct polarity when connecting and disconnecting the battery.
Damage to the electrical system due to incorrect polarity of the battery!
Non-observance of the correct polarity between the battery and three-phase generator may
severely damage the electrical system.
• First connect the positive terminal of the battery.
• Then connect the negative terminal of the battery.
Damage to electronic components due to voltage peaks or overheating!
If the vehicle power supply is interrupted on the main battery switch while the engine is running,
voltage peaks or overheating may occur and possibly damage the electronic components in the
vehicle.
• Actuate the main battery switch only when the engine is switched off.
NOTE
An overview of all control unit circuit boards and fuses is in the circuit diagram which is
enclosed with every machine.
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