SECTION VI. PREPARATION FOR STORAGE, RESHIPMENT, AND RETURN TO SERVICE

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REPLACEMENT

TM-55-1905-223-24-1 Main Propulsion Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Preparing a Stored Engine for Service

TM 55-1905-223-24-1

SECTION VI. PREPARATION FOR STORAGE, RESHIPMENT, AND RETURN TO SERVICE

2-38. General.

If an engine 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 it against the corrosive effect of the

elements. Further information can be found in Army Technical Bulletin TB 740-97-4.

Temporary Storage. If an engine is to remain out of service for a maximum of' 6 months, the

procedures listed below are required to minimize or prevent damage:

(1)

Start the engine and operate until thoroughly warm. Disconnect the fuel lines to the engine fuel

filter and injector drain line (fuel return to tank). Fill two containers, one with diesel fuel and a

second with preservative oil (MIL-L-644 Type P-9).

(2)

Start the engine with the fuel line to the filter submerged in the container of diesel fuel. (The

injector drain line should also flow into the container.) After the engine is running smoothly, switch

the fuel line to the container with the preservative oil. Operate the engine for 5 to 10 minutes on

preservative oil. Stop the engine and reconnect the fuel lines.

(3)

Drain the oil sump and fuel filters and reinstall the drain plugs. The sump may remain empty until

the engine is ready for use; tag the engine with a warning tag.

(4)

Disconnect the electrical wiring and turn the fuel pump manual shut-off valve fully

counterclockwise to off. Spray lubricating oil into the intake manifold while cranking the engine

slowly.

(5)

Cover all the openings with tape to prevent the entrance of dirt and moisture.

(6)

Bar the engine crankshaft two or three revolutions each three to four weeks.

Permanent Storage. When an engine is to be stored 6 months or more, the following procedures must

be performed:

(1)

Start the engine and operate it at fast idle until the engine is thoroughly warm. Stop the engine

and drain the old oil.

(2)

Fill the crankcase to the full mark on the sight gauge or dipstick with preservative oil, U.S. Military

Specification MIL-L-21260, Type P-10, Grade 2 SAE 30.

(3)

Repeat steps a, (1), (2), and (3) above.

(4)

Disconnect the electrical wiring and turn the fuel pump manual shutoff valve fully

counterclockwise to off.

(5)

Remove the intake and exhaust manifolds.

Spray all the intake and exhaust ports with

preservative oil. Replace the manifolds.

2-146