CHAPTER 3
PRESERVATION INSTRUCTIONS
SECTION I. PRESERVATION WITHOUT DEHUMIDIFICATION
of engine preservation, the engine crankcase, and the
13. General. This section outlines requirements for the
crankcases of any mounted accessories having a
preservation
of
railroad
equipment
without
separate crank case from the engine, will be filled to the
dehumidification. The preservation methods, techniques
operating level with P-10 preservative lubricating oil, type
and contact preservatives specified for use herein are
1, grade 10, 30 or 50 as applicable. Upon completion of
considered adequate to protect railroad equipment for
engine preservation, the preservative oil will remain in
long-term storage. Railroad equipment not specifically
the crankcases. A tag will be prepared for each
mentioned in this section will be preserved similar to
crankcase indicating: THIS CRANKCASE IS FILLED TO
those items having the same operational and physical
THE OPERATING LEVEL WITH PRESERVATIVE
characteristics.
LUBRICATING OIL GOOD FOR OPERATION UNTIL
THE FIRST REQUIRED LUBRICANT CHANGE - DO
14. Engines.
NOT DRAIN - CHECK OIL LEVEL - IF LOW, FILL TO
a. Combustion Chambers. When preservation of
THE OPERATING LEVEL WITH THE OPERATING OIL
combustion chambers is specified herein, the amount of
(MIL-2104, APPLICABLE GRADE)." The tag will be
preservative lubricating oil to be sprayed into each
attached to the crankcase fill tubes.
cylinder will be determined as follows:
(b) Compression-ignition engines operating
at output levels of 150 psi (bmep) and above. At the
(1)
One-half ounce for each cylinder with
beginning of engine preservation, the engine crankcase,
displacement up to 25 cubic inches.
and the crankcases of any mounted accessories having
(2) One ounce for each cylinder with piston
a separate crankcase from the engine, will be filled to the
displacement between 25 and 50 cubic inches.
operating level with P-10 preservative lubricating oil, type
(3) One and one-half ounces for each cylinder
II, grade 10 or 30 as applicable. Upon completion of
with piston displacement between 50 and 75 cubic
engine preservation, the preservative oil will remain in
inches.
the crankcases. A tag will be prepared for each
(4) Two ounces for each cylinder with piston
crankcase indicating: "THIS CRANKCASE IS FILLED
displacement over 75 cubic inches.
TO THE OPERATING LEVEL WITH PRESERVATIVE
LUBRICATING OIL GOOD FOR OPERATION UNTIL
CAUTION
THE FIRST REQUIRED LUBRICANT CHANGE - DO
Precautions will be taken to assure that the
NOT DRAIN - CHECK OIL LEVEL-IF LOW, FILL TO
THE OPERATING LEVEL WITH THE OPERATING OIL
(MIL- 2104, APPLICABLE GRADE)." The tag will be
hydrostatic lockup of the engine.
Prior to
attached to the crankcase fill tubes.
preserving additional engines, the first engine
(2) Dry sump.
preserved will be allowed to stand idle for 12
(a) Crankcases of air-cooled engines that
hours. The engine crankshaft will then be
are lubricated by adding lubricating oil to the fuel, P-10
rotated manually, or by the starting motor if
preservative lubricating oil, type I, grade 10, 30 or 50 as
manual rotation is not possible, to assure that
applicable, will be added to the fuel in the ratio specified
for normal operation. The engine will be started and
chambers and manifolds permits free rotation of
operated at fast idle until running smoothly. The engine
the engine.
will then be accelerated to 3/4 speed, without load to
assure coverage of all interior surfaces of the lubricating
b. Crankcases. Prior to preservation of the fuel
system.
system and combustion chambers, the engine crankcase
(b) Air-cooled dry sump engines which
and the crankcases of engine accessories will be
operate with no oil in the crankcase, the inspection plate,
preserved as follows:
air box cover or the plugs will be re-
(1)Wet sump.
(a) Spark-ignition engines and compression-
ignition engines operating at output level up to 150 psi,
brake mean effective pressure (bmep). At the beginning
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