noises, vibrations, or irregularities of performance.
33. Specific Procedures for Operators
d. At-Halt Service. This service will consist of brief
visual inspection of equipment for condition, security,
Table I lists the specific procedure
to be performed
and wear; the removal of foreign material from
the shop set by the operator in daily service. An "X" in a
equipment; and the cleaning of equipment that might be
column indicates that the procedure opposite it should
damaged by allowing existing conditions to continue.
be performed during that part of the daily service it
e. After-Operation Service. This service Consists
of investigating any deficiencies noted during operation
and repeating parts of the before operation service. It is
the basic daily service for equipment and consists of
correcting so far as possible, any operating deficiencies;
Any special cleaning instructions required for specific
in this manner, the equipment is prepared to operate
mechanisms or parts are contained in the technical
upon short notice.
manual for the equipment.
f. Inspection. The general inspection of each item
instructions are as follows:
is generally a check to see whether the item is in good
a. Use dry cleaning solvent to clean or wash
condition, correctly assembled, secure and not
grease or oil from all metal parts.
b. A solution of one part grease-cleaning
g. Definition of Terms. Terms used to describe the
compound to four parts of drycleaning solvent may be
inspection requirements of this section are defined as
used for dissolving grease and oil from the shop and
equipment other than optical instruments.
cleaning, use cold water on exterior surfaces of the
(1) Good condition.
This is usually an
shop, to rinse off any solution which remains. Operating
external inspection to determine whether
equipment and handtools, exclusive of optical
the unit is damaged beyond serviceable
instruments, may be wiped with a light lubricating oil.
The term "good condition" is
explained further by the following: Not
c. When authorized to install new parts, remove
bent or twisted, not chafed or burned, not
broken or cracked, not bare or frayed, not
compound, protective grease, etc-; prepare parts as
dented or collapsed, not torn or cut, not
required (oil seals, etc.); and for those parts requiring
lubrication, apply the lubricant prescribed in the
(2) Correctly assembled. This term refers to
the inspection of a unit to see that it is in
d. Nameplates, caution plates, and instruction
the normal assembled position. It is
plates made of steel rust very rapidly. When they or
usually an external visual inspection.
found to be in a rusted condition, they should be
thoroughly cleaned and heavily coated with an
(3) Secure. This is usually an external visual
application of clear lacquer.
inspection or a check by hand or wrench
for looseness. Such an examination must
35. General Precautions in Cleaning
locknuts, locking wires, or cotter pins
a. Drycleaning solvent is flammable and should
not be used near an open flame. Fire extinguishers
should be provided when these materials are used. Use
(4) Excessively worn. This inspection is to
only in well-ventilated places.
determine whether equipment is worn
beyond serviceable limits or to a point
b. Drycleaning solvent evaporates quickly and has
likely to result in failure if the unit is not
a drying effect on the skin. If used without gloves, it
replaced before the next scheduled
may cause cracks in the-skin and, in the case of some
individuals, a mild irritation or inflammation.
c. Avoid getting petroleum products, such as dry
cleaning solvent, mineral spirits paint