MIL-DTL-24784/14B(SH)
TABLE I. Periodicity symbols.
INTERVAL
SYMBOLS
Daily
D
Weekly
W
Monthly
M
Quarterly (3 months)
Q
Semiannually (6 months)
S
Annually
A
Overhaul cycle
C
As specified (explain circumstances)
R (see note 1)
1. An R periodicity shall be preceded by a recommended calendar periodicity (for example,
DR, WR, MR, and so forth).
3.6.3.4.3 Preventive maintenance procedures. These procedures shall include information
required to examine, clean, and lubricate the equipment, and shall contain:
a. Safety precautions.
b. Tools, parts, materials, and test equipment.
c. Cleaning solvents. Solvents shall be identified by Government specification numbers and
National Stock Numbers.
d. Instructions for properly maintaining all safety devices and interlocks with warnings, and
cautions.
e. Instructions for lubrication at shipboard operating temperatures; also types and quantities of
lubricants to be applied. Lubricants shall be identified by Government specification numbers
and National Stock Numbers. Specific lubricants for arctic or tropic environments shall be
included. When a proprietary lubricant is approved, a Government Specification lubricant
shall be listed as an emergency substitute.
f. The minimum rating of the technician who can be expected to perform the task.
g. Procedures of obtaining access to subassemblies of subcomponents.
h. Instructions for in-place balancing and noise reduction.
i. Inspection procedures for parts which deteriorate due to cycles of use, age, or climatic
conditions.
j. Illustrations to identify lubrication points and other pertinent data.
k. Other information pertinent to these procedures.
3.6.3.4.4 Scheduled performance tests. These tests shall contain step-by-step procedures
necessary to verify that the equipment is operating within standards in all modes of operation and
shall contain the following:
a.
Safety precautions.
b.
A list of tools and test equipment identified by type, manufacturer, and model number.
c.
The title of the test to be performed.
d.
The minimum rating of the technician expected to perform the task.
e.
Preliminary setup data required to perform the test.
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