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 TM 55-1905-223-24-3
SECTION VI. PREPARATION FOR STORAGE, RESHIPMENT, AND RETURN TO SERVICE
2-44. General. If the generator set will be out of service for an extended period of time (3 weeks or longer), or
reshipped to another location, certain actions must be taken to protect the engine against the corrosive effects
of the elements. All surfaces of an engine will rust or corrode if they are not protected. The actions in this
procedure must be taken before placing the set in storage or before reshipment to another location. Also see
TB 740-97-4, Preservation of Vessels for Storage.
a. Temporary Storage. If an engine remains out of service for 3 weeks to 6 months, take steps to
prevent rust. The following procedures are required to prevent damage to engine in temporary storage.
(1) The engine must be started and the speed gradually increased to 1200 rpm with no load. Operate
the engine until the water temperature is at least 160 (71 ).
F
C
(2) Disconnect both fuel lines at the fuel supply tank. Fill two portable containers, one with diesel fuel
and a second with preservative oil (U.S. Military Specification MIL-L-644, Type P-9).
(3) Start the engine with the fuel inlet line pulling fuel from the can with the diesel fuel. Let the drain line
flow into the container with the diesel fuel. After the engine is started and is running at idle, move
the fuel line to the container with the preservative oil. Operate the engine 5 to 10 minutes on the
preservative oil. Stop the engine and reconnect the fuel lines to the supply tank.
(4) The oil sump, fuel filters, and fuel tank must be drained and the drain plugs installed.
(5) Remove the intake hose from between the air cleaner and the intake manifolds.
(6) Disconnect the electrical wiring to the engine and generator assembly. Turn the shutoff valve on the
fuel pump counterclockwise so that the engine will not start. Rotate the crankshaft of the engine
while applying a spray of 10W oil into the intake manifold of the engine.
(7) Put tape over all the intake manifold (aftercooler) openings to keep out dirt and moisture.
(8) Put tape over all the engine openings, including the coolant inlets, cylinder block, oil breather and
(9) Drain the coolant from the cooling system, unless it is a permanent antifreeze with a rust inhibitor
added.
(10) Put the generator set in a place protected from the weather where the air is dry and the temperature
is even.
2-152
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