MIL-DTL-81928C(AS)
(3) "Nomenclature" column. The complete item nomenclature shall be listed. Complete
placard data shall be listed below the nomenclature in parenthesis. Complete placard
data includes the appropriate functional (section and/or group) prefix(s).
(4) "Position/Mode" column. When the item has more than one position or mode of
operation, each position and mode shall be listed and the specific function aligned to
the appropriate combination of mode and position. When the specific function is
controlled by the mode, and the mode is controlled by a different control, the related
mode with the controlling data may be entered in the "Function" column and the
"Position/Mode" entry should be aligned with the related function. If necessary for
clarification, a notation may be made in the column and provided below the table or
by reference to text with appropriate illustration(s), including a matrix of the modes
and positions to function.
(5) "Function" column. The purpose, use, and function of all operating controls and
auxiliary equipment, or attachments furnished with the equipment shall be entered.
The coverage shall also provide interpretation of typical instrument readings (with
acceptable limits stated) and indictor presentations to inform the operator what
recognizable results he or she should expect to observe during each mode of
operation. When the item has more than one function (position or mode), the
function should be aligned by the position and/or mode entry and provide only the
related data. If necessary for clarification, a notation may be made in the column and
provided below the table or by reference to text with appropriate illustration(s),
including a matrix of the modes and positions to function.
3.3.2.2.2 Principles of operation. This element shall cover the functional description of the
system or component.
3.3.2.2.2.1 Depth of coverage. The functional description shall include the purpose, type,
content, and main features of each system or component. Major characteristics, capabilities, and
limitations shall be included. Detailed component functional description, common circuitry and
wiring diagrams are not required unless necessary to understand system or component function.
Each ancillary system contained in an integrated system should be covered individually.
Normally, the integrated system coverage is placed in a separate manual.
3.3.2.2.2.2 Method of presentation. The functional description shall be presented in
paragraph form supported by block diagrams. The data shall be presented in a manner to acquaint
the qualified technician (with adequate background) information required to perform the
maintenance task, and to support on-the-job training of less qualified personnel. Presentation
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