Removal from operation
Placing out of service/stopping
A3.07.18.01
M20/M25/M32
en / 25.03.1997 BA000102 2/2
Ĺ
If the engine is to be started again after a short interval
To avoid the accumulation of heat immediately before or after shutting down, start all system
circuits and keep the engine at working or preheating temperature according to the duration of the
stop and the type of fuel used (see A3.05.18.nn).
When the engine is running on heavy fuel, a changeover to destillate fuel (see A3.06.07.nn ) is only
required if servicing the fuel injection system is intended or if, as is possible in some cases, the
engine will be operated at low load for a lengthy period of time (see A3.06.18.nn).
• Cut the preheating equipment in.
• Start the coolant water circulating pump.
• If the engine is preheated by other engines in operation, open the isolating valves.
• In heavy fuel/distillate fuel operation, running of the fuel system must continue, as when
operating the engine, to keep it warm: circulating pump, fuel preheating via viscosimeter,
back-flushing filter (if provided) are in operation. The fuel separator before the day tank will
also continue to operate.
• Keep the lubricating oil system warm and thus free from condensate and sludge deposits by
continuous separator operation.
• Ventilate the machinery spaces only as required to avoid excessive cooling of the engines.
Before a lengthy period of standstill (e.g. up to 4 weeks), heavy fuel engines are to be changed over
to distillate fuel operation (see A3.06.07.nn ).
Engine preservation is required if the non-operational period exceeds 4 weeks. Climatic conditions
and duration of storage, determine the nature of the measures to be taken (see A3.09.01.nn and/or
A3.09.02.nn).
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