Decommissioning and recommissioning
MAN marine diesel engines D2868 LE4.. / D2862 LE4..
103
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.
10.4.2 Commissioning of non-preserved engines
In addition to the work sequences for a preserved engine, the commissioning of non-preserved engines
requires the following additional work relating to possible deterioration in storage.
1. Endoscope the combustion chambers, remove and install injectors to do this.
Check valves for free movement, check valve clearance and adjust as necessary.
Replace defective/corroded parts.
2. Drain old oil from engine and change oil filter. Fill engine with fresh approved engine oil.
3. Check cooling system for corrosion; check coolant for proper concentration; if in doubt, change coolant.
Before adding new coolant, clean coolant chambers and remove/install coolant pump and thermostat if
necessary; replace the slide ring seal of the coolant pump and thermostat elements; pressure test cool
ing system.
4. Check clean air system, air filters and exhaust turbochargers for dirt, onset of corrosion,
clean or repair as necessary.
5. Clean the fuel system, drain any old fuel. Check, clean and, if necessary, replace filters.
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