Operation
Correct operating technique is very important for both fuel economy and engine life. Always let the engine warm
up to normal operating temperature before operating at full power. Avoid sudden throttle openings and operation
at high engine rpm.
Reading the Instruments
Check all instruments directly after starting, and then
regularly during operation.
NOTICE! On engines in continuous operation, the
lubrication oil level must be checked at least every 24
hours. Refer to Oil level, checking and topping up.
Alarms
If the EMS 2 system receives abnormal signals from
the engine, the control unit generates fault codes and
alarms, in the form of lamps and audible warnings. This
is done by means of CAN signals to the instrument.
More information about fault codes and fault tracing
can be found in the chapter. Fault Code Regis-
ter page 36.
Maneuvering
Operation at low load
Avoid long-term operation at idle or at low load, since
this can lead to increased oil consumption and even-
tually to oil leakage from the exhaust manifold, since
oil will seep past the turbocharger seals and accom-
pany the induction air into the inlet manifold at low
turbo pressure.
One consequence of this is carbon build-up on valves,
piston crowns, exhaust ports and the exhaust turbine.
At low loads, the combustion temperature may
become so low that complete combustion cannot be
ensured, resulting in possible fuel dilution of lubricating
oil and eventually leakage from the exhaust manifold.
If the following points are done as a complement to
normal maintenance, there will be no risk of malfunc-
tions caused by operation at low load.
•
Reduce operation at low load to a minimum. If the
engine is regularly test-run without load once a
week, the duration of this operation should be lim-
ited to 5 minutes.
•
Run the engine at full load for about 4 hours once a
year. In this way carbon deposits in the engine and
exhaust system are given the chance to burn up.
26 7748681 12-2011
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