ENG - 24
03917401.ENG rev. 0
6.5 CONSERVATION
warning!
All engines not in use are subject to rusting and corrosion of machined surfaces that are not protected with a paint
coating. The degree of corrosion depends on meteorological changes and climatic conditions. The following
recommendations are therefore of a general nature but they will help prevent or reduce the risk of damage due torusting
6.6 LONG INACTIVITY INSTRUCTIONS
When the engine is not to be used for a long period of time or during the winter time, certain operations must be carried out to
keep it in perfect operationing condition. Follow these lay-up instructions carefully.
(1)
Carefully clean the external surface of the engine.
(2)
If very low temperatures are expected, always use liquid anti-freeze in the refrigeration circuit as indicated in section
4.2.2 of this manual.
(3) In the case of low-capacity fuel tanks, drain completely and clean; refill with a mixture of diesel oil and rust inhibitor
oil. For diesel oil in large-capacity fuel tanks, it is enough to add 2% rust inhibitor oil.
(4)
Close the sea-water cock. Connect a hose from the sea water pump to a open bucket. Put 30% anti-freeze mixture to
the bucket. Start the engine for a moment. So the sea water system will be filled with anti-freeze mixture. Stop the
engine.
(5) Use a dielectric spray on the electrical connections, disconnect the battery, and charge it several times during the
period of inactivity.
6.7 RESTORATION OF THE RUNNING CONDITIONS
When starting up the engine again after winter lay-up, certain operations must be performed. Follow these steps:
(1)
Fill the fuel tank with clean diesel oil. Carry out the process for checking the fuel filter. If the filter is clogged, replace
the filter cartridge. The diesel oil-rust inhibitor oil mixture placed in the tank for winter lay-up can be used to operate
the engine.
(2) Drain the rust inhibitor oil contained in the crankcase and refill the engine sump with oil according to the instructions
on heading 4.2.1.1.
(3)
Check the condition of the fresh-water cooling system rubber hoses.
(4)
Reconnect the battery and apply a layer of neutral Vaseline to the battery terminals.
(5) Remove the nozzle supports and clean them. If possible, verify the setting of the nozzles at a workshop. Turn the
engine without nozzles, using the starter motor, to eliminate the rust inhibitor oil used in the winter. Then install the
clean nozzles.
(6)
Connect the cooling and exhaust system. Open the sea-water cock.
(7)
Verify whether there are any leaks in the fuel and water systems.
(8) Start up the engine and try out at different speeds, making sure that the water flows correctly. Check again to see if
the connectors leak.
