MIL-DTL-87929D
screws have been removed. The illustrations shall include brief instructions as required, tool numbers,
dimensions and other pertinent information.
3.3.9.3 Exploded views.
Exploded views of the equipment shall be in accordance with MIL-STD-38784.
3.3.9.4 Repair illustrations.
Pictorial displays shall depict all information necessary to support a
repair procedure.
3.3.9.5 Inspection illustrations. Illustrations shall support inspection limits by clearly showing all points of
limits. Access and inspection openings shall be indicated by index number and a tabulation of the equipment
or parts for which access is provided. Illustrations shall not show limit values but shall show reference
callouts with leaders to the point of clearance.
3.3.9.6 Illustration keys. Print presentation: Legends or tables applicable to partial page illustrations shall,
whenever possible, appear on the same page. If adequate room is not available, or for a full page illustration,
the information shall appear on a facing or following page. If the legend or table, exceeds the allowable
space, it may be continued on a second page.
Electronic presentation: Legends or tables applicable to partial screen view illustrations shall, whenever
possible, appear in the same view. If adequate room is not available, or for a full view illustration, the
information shall appear in a scrollable view. If the legend or table, exceeds the allowable space, it
shall also be scrollable.
3.3.10 Diagrams. The manual shall include diagrams and associated data necessary for maintenance
personnel to:
a. Understand the makeup and function of each component, power, control, and signal circuit, and
of each mechanical system.
b. Trace each circuit and mechanical system.
c. Accomplish general and speciic troubleshooting on inoperative or malfunctioning circuits or
mechanical systems.
Print presentation: Foldouts shall be in accordance with MIL-STD-38784.
3.3.10.1 Explanatory text. The foreword WP shall contain an explanation of the diagrams used in the
manual as to their content and proper use. This shall include the working relationship to material in other
WP/SWPs, how to locate a particular diagram, an explanation of the wiring identiication system used on the
diagrams, when applicable, and any other information considered essential for proper understanding and use.
3.3.10.2 Symbols.
Symbols shall be in accordance with MIL-STD-38784.
3.3.10.3 Schematic diagrams.
3.3.10.3.1 Schematic diagram general requirements. Where the equipment s nature, relative complexity, and
number of components make it feasible, a single schematic diagram shall be prepared to cover all signal
circuits, power circuits, and control circuits. When a single diagram is infeasible, a separate diagram shall be
prepared for each item of equipment. Any circuits left in "midair" and picked up on other diagrams and
which terminate with a plug, terminal strip, or jack, shall show a composite plug grouping. Each lead shall
be extended through the plug, terminal strip, or jack, and labeled to indicate the necessary designator of the
irst connection within the other component, or other signiicant point of termination.
3.3.10.3.1.1 Interconnections. When the equipment obtains information from, or supplies information to
other items of equipment of a system, diagrams shall be provided showing all required interconnections,
unless this information is not contained in a system manual. If provided by a system manual, reference
shall be made to that manual.
3.3.10.3.1.2 Circuits. Power circuits, control circuits, and signal low within a particular circuit(s) or
functional loop(s) shall be identiied.
3.3.10.3.2 Schematic diagrams for equipment.
A schematic diagram of an item of equipment shall
show the following:
a. Subassemblies shall be indicated by a series of broken lines.
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