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Maintenance and careAlternatorThe alternator is maintenance-free.Nevertheless, it must be protected against dust and, above all, against moisture.In order to avoid damage to the alternator, observe the following instructions:While the engine is runningD Do not de-energize the main battery switch!D Do not disconnect the battery or pole terminals or the cables!D If, durig operation, the battery charge lamp suddenly lights up, stop the engineimmediately and remedy the fault in the electrical system!D Do not run the engine unless the battery charge control is in satisfactory order!D Do not short-circuit the connections of the alternator with those of the regulator or saidconnections with ground, not even by briefly bringing the connections into contact!D Do not operate the alternator without battery connection!Temporary decommissioning of enginesTemporary anti-corrosion protection according to MAN works norm M 3069 is required forengines which are to be put out of service for fairly long periods.The works standard can be obtained from our After-Sales Service department in Nuremberg.61