Man D 2840 LE 301, Repair Manual

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Fault table
11
Operating faults and possible causes
We recommend
A repair is only complete when both the damage that occurred and the possible causes have been
eliminated. Finding out the cause of damage is often more difficult than repairing the damage that occurred.
We therefore recommend that you obtain a precise description of the operating fault before “removing and
dismantling” components. Then use a process of elimination (questions) to pinpoint the probable causes
and investigate and eliminate these successively on the basis of the table and your own experience . This
helps to reduce repairs to the required scale and to counteract claims regarding “over-eager” replacement
of parts and complaints about expensive work and down time.
Note:
The following list is conceived as an aid to memory for experts so that to causes of damage are overlooked
when dealing with faults. The precondition for this, however, is that the experts are familiar with the Repair
Manual for the engine as well as the accompanying Operating Instructions and the publication “Fuels,
Lubricants and Coolants for MAN Diesel Engines”.