Faults - Man D2868 LE426 Operating Instruction

9

Faults

The D2868 LE.. / D2862 LE4.. engines are equipped with the MAN Monitoring and Diagnostics System
MMDS.
All key engine parameters are continuously monitored by sensors. These data are registered by the MAN
Monitoring and Diagnostics System MMDS and compared with stored desired values.
In the event of a fault, the registered engine parameters are outside of the permissible tolerance limits and
the system trips an alarm.
The MAN Monitoring and Diagnostics System can reduce the power output of the monitored engine to pre­
vent follow-on damage.
The MAN Monitoring and Diagnostics System can stop the monitored engine autonomously if machine op­
eration is endangered by a technical defect.
To ensure vessel safety in dangerous situations, the override system provides an option for preventing the
engine from being stopped or the power from being reduced and for re-activating the full engine power.
The alarms registered by the MMDS are indicated visually and audibly:
S On the MMDS CLC 6.5 colour display on the control stand
S On the engine display of the E-Box in the engine room
NOTE
Risk of engine damage
Alarms are indicators of technical faults that can lead to consequential damage
For this reason:
S Have the cause of a fault remedied immediately by MAN Service for marine engines.
Current directory of service centres on the internet at:
http://www.asp.mantruckandbus.com
Carefully read through the Operating Instructions before starting any work!
This particularly applies to the General Safety Instructions section
and the safety instructions in the various chapters.
MAN marine diesel engines D2868 LE4.. / D2862 LE4..
Faults
95