Maintenance and care
33
Turbocharger
At every engine oil change check the oil pipes for leaks and constrictions.
Furthermore, a regular check should be kept on charge air and exhaust gas pipes.
Any leakages should be attended to at once because they are liable to cause overheating of the engine.
Intercooler
The water / air intercooler is part of the MAN delivery share and does not require any regular cleaning.
Air / air intercooler systems are not part of the MAN delivery share. These are to be cleaned after liasing
with the vehicle manufacturer, or according to amount of soiling.
Starter motor
Check that the electric cables are properly fastened and that contacts and plug connections are secure.
In engines fitted with electronic speed pickups at the flywheel (e.g. electronic speed governor and EDC),
the speed pickup are to be cleaned too and metal chips that may adhere are to be removed.
Note:
Always disconnect the battery earth cable before starting work on the electrical system. Connect
up the earth cable last, as there is otherwise a risk of short-circuits.
Alternator
The 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 running
D 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 engine immediately 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 said connections with
ground, not even by briefly bringing the connections into contact!
D Do not operate the alternator without battery connection!
Temporary decommissioning of engines
Temporary anti-corrosion protection according to MAN works norm M 3069 is required for engines which
are to be put out of service for fairly long periods.
The works norm can be obtained from our After-Sales Service department Nuremberg works.
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