MIL-DTL-24784 / 21B (SH)
3.6.3.2 Controls and indicators. A description of all operator controls, indicators, protective
devices and jacks shall include the following:
a. Names of panel designations as marked on the equipment.
b. Positions and operating functions for each control, and the normal operating condition of each
indicator in each of the operating functions in tabular format.
c. The text shall be supported by detailed illustrations (see figure 21-32).
d. When more than one operator is required to operate the equipment, his designated position
and function, and the relationship to his controls and indicators shall be specified.
3.6.3.3 Operating procedures. Operating procedures shall include the following:
a. Operator turn-on. All steps necessary to bring the equipment from OFF through STANDBY
condition to full operation.
b. Modes of operation. Procedures for each mode of operation, for example, manual, automatic,
local, remote, and so forth. The use and relative advantage of each mode shall also be
described.
c. Operation under interfering conditions. Describe the equipment antijamming and interference
reduction features, the advantages of each feature, and the operating procedures to be
followed in all possible situations. Supporting illustrations (such as indicator displays, wave
forms, and so forth) shall be included which provide typical observations of jamming and
interference for evaluation by the operator.
d. Operator turn-off. This procedure shall include all steps necessary to bring the equipment
from full operation through STANDBY to OFF condition.
e. Battle-short or emergency operation. This procedure shall cover operating the equipment
during emergency conditions (control failure, air failure, lube oil failure, loss of cooling water,
and so forth). Emergency operator instructions shall be included. Provide a warning or
caution to return the equipment to proper operation when the emergency is over.
f. Emergency turn-off. This procedure shall cover turning the equipment off during an
emergency (fire, water, smoke, hazard to personnel, loss of coolant, normal power, and so
forth).
g. Electromagnetic Interference (EMI). This procedure shall include information pertaining to
the recognition of EMI (such as sights, sounds, lack of response, or other irregularities) and
operating procedures to cope with them during operations.
3.6.3.3.1 Method of presentation. Operating procedures shall be presented in tabular form (see
figure 21-33) and shall be in concise, simply-worded, step-by-step procedures (see
MIL-DTL-24784) and shall include the following:
a. A short explanation of the operation to be performed.
b. Initial safety requirements (actions, inspections, and reference to emergency turn-off
procedures).
c. Connection of any accessory equipment not permanently connected.
d. Instructions for obtaining or confirming the presence of all critical inputs such as power,
coolant, air, signal, air conditioning, and so forth.
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