MIL-DTL-24784/7C(NAVY)
b.
Examination and acceptance criteria, corrective action, mandatory replacement parts, cleaning methods,
and data collection.
c.
Reassembly procedures.
d.
Acceptance testing (if applicable). Subsections shall discuss subassemblies or individual parts (may be
more than one related part per subsection).
3.7.4.1 Removal, disassembly, inspection, and repair procedures. Step-by-step procedures for the disassembly,
repair, and inspection of the repairable items shall be developed. Detailed instructions shall be limited to areas
where the sequence of operations is not obvious or where special techniques are required for access to a part
requiring repair. When the sequence of disassembly is obvious, it is sufficient to state "Disassemble by removing
parts in accordance with the disassembly sequence numbers." Additional instructions, dangers, warnings, and
cautions should be specified in sequence with a disassembly instruction as required. Instructions on the tagging,
labeling, and match-marking of parts shall be included in this paragraph. When examinations and inspections must
be performed prior to or during disassembly, the TRS shall so specify. Step-by-step procedures shall be provided in
any of the following cases (see MIL-DTL-24784):
a.
When accomplishment of the required action would not be obvious to a journeyman mechanic unfamiliar
with the particular equipment covered by the TRS.
b.
When a peculiar or special action is required.
c.
When safety related or precautionary procedures are required to prevent personnel injury or equipment
damage.
d.
When the required action involves an area with a known history of failure due to improper procedures.
e.
When because of the complexity of a particular procedure it is necessary to maintain the continuity of the
TRS.
3.7.4.2 Mandatory replacement parts. When the requirement exists for the planned mandatory replacement of
particular items, the TRS shall reference the mandatory overhaul replacement parts list (see figure 1 and 6.2). The
list shall be in tabular format, in Appendix A, and shall identify those parts that are required to be replaced,
regardless of their condition. Replacement materials shall be available at the overhaul activity in accordance with
their TRS instructions. Examples of mandatory replacement items may be parts such as seals, washers, vacuum
tubes, air filters, and motor brushes.
3.7.4.3 Examination criteria. Criteria to determine the suitability of worn or degraded critical parts for
continued use shall be developed and shall explicitly state the measurable wear and deterioration limits which, if
exceeded, would require corrective action to maintain reliability and specified performance. These data shall appear
in the text and be presented, in tabular form, in Appendix C (see 3.7.8.4). Data shall identify the part and
measurable limits. Departures from existing limits shall be highlighted with a text footnote. Corrective actions shall
also be specified in the text.
3.7.4.4 Special cleaning methods. When applicable to the repairable items covered in the TRS, special
processes and methods of cleaning and examination to be performed on each disassembled item shall be described.
Special cleaning and inspection instructions shall include:
a.
The pre-cleaning examination requirements and cleaning process to be used for each item requiring
cleaning.
b.
Step-by-step procedures for accomplishing the cleaning process.
c.
Specific identification of cleaning materials to be used by their commonly known name and specification
number. These data may be provided in tabular format.
d.
Quantitative instructions for the variables associated with the cleaning process; for example: air pressure,
moisture content, solvent temperature, soak time, ultrasonic frequency, drying time, and temperature.
e.
Procedures for use of special tools, jigs, or fixtures.
f.
Post-cleaning examination, preservation, and handling instructions.
g.
Dangers, warnings, or cautions to be observed to protect personnel and equipment.
h.
Other data as may be determined appropriate for the repairable items.
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