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 TB 55-1900-231-15
A. Engine: Main Propulsion, Generator, Fire Pumps, and Anchor Winch.
(1) Lubricating Systems: At the beginning of preservation the crankcases and lubricating systems of all
engines will be drained and refilled to operating level with P-10, Type I, Grade 30 preservative lubricating
oil. Upon completion of preservation the preservative oil will remain in the engines. A tag will be prepared
for each engine and attached to or near to lube oil fills: "'THIS CRANKCASE IS FILLED TO OPERATING
LEVEL WITH PRESERVATIVE LUBRICATING OIL GOOD FOR OPERATION UNTIL THE FIRST
REQUIRED OIL CHANGE-DO NOT DRAIN-CHECK OIL LEVEL-IF LOW, FILL TO OPERATING LEVEL
WITH OE-30 FROM THE CLEAN OIL STORAGE TANK."
(2) Fuel Systems: Engines will be cranked, thoroughly warmed up, and shut down. The fuel supply valve
from the day tank will be secured. The fuel supply line to the engine will be broken at the most
accessible/convenient location before the fuel supply pump. A flexible line/hose leading from a container
of P-9 preservative oil shall be attached to the fuel supply pump line. The fuel return line shall be
disconnected at the most accessible/convenient location. A transparent plastic line will be attached to the
broken engine fuel return line and the unattached end shall be inserted into a recovery container to collect
the returned fuel. Crank the engine and run at 1/2 speed until undiluted preservative oil (P-9) (as observed
thru the transparent flex) is flowing into the recovery container.
Shut the engine down and reconnect the fuel supply and return lines. Ensure that all air is bled from the
fuel supply line.
NOTE
On the Design 3006 Tug, the main engine will require several 5 gallon cans of i9 to preserve the
system EXERCISE CARE TO PREVENT THE FUEL SYSTEM BECOMING AIR BOUND
DURING THE PROCESS. The fuel oil from the recovery container will not be used for
preserving other engines.
(3) Combustion Chambers: Upon completion of the fuel system preservation and. after the engines have
cooled to a cylinder head temperature of 100F or less, the combustion chamber/each cylinder of each
engine shall be fogged with P-10, Type I, Grade 10 as per (a) and (b) below. Air pressure for fogging shall
not exceed 25 psi.
(a) Two cycle engines with intake port and valves: Remove the air box covers and jack the engine until
the piston in the cylinder to be fogged is below the ports. The P-10 will be fogged thru the ports.
Continue jacking and fogging until all cylinders have been fogged, after which the air box covers will
be reinstalled.
(b) Four cycle engines: Remove the injector nozzles and fog the P-10 into each cylinder thru the
opening with the piston at BDC (bottom dead center). This will entail jacking and fogging until all
cylinders are fogged, after which the injectors and nozzles will be reinstalled and timed.
NOTE
The amount of P-10, Type 1, Grade 10 to be fogged into each cylinder is 1-1/2 oz. on the Detroit
71 series engines and 2 oz. on the Design 3006 Tug main engine and the Design 264B main
generator engines.
CAUTION
DO NOT RUN ENGINES AFTER COMPLETION OF CYLINDER FOGGING.
(4) Cooling Systems: All engine fresh water cooling systems will be filled with a 50/50 solution of water and
permanent anti-freeze, ensuring the engines are in a ready to run status. Each cooling system should be
tagged with this information. The system must be tagged with the date the antifreeze is installed.
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