MIL-DTL-24784/14B(SH)
3.6.3.5.2 Troubleshooting data. This chapter shall contain all the information required to enable
the technician to locate malfunctions in the equipment.
3.6.3.5.2.1 Introduction. The introduction shall explain the approach and logic of the
troubleshooting principles presented in the manual. Describe the troubleshooting data and show
how they relate to one another.
Unless otherwise specified in the TMCR (see 6.2), the troubleshooting index shall be presented in
3.6.3.5.2.1.1 Troubleshootin tabular form (see MIL-DTL-24784).
g index.
3.6.3.5.2.2 Relay coil, switch, and indicator lamp indices. Unless otherwise specified in the
TMCR (see 6.2), the indices shall be in tabular form for all relay coils, switches and indicator
lamps (see MIL-DTL-24784).
3.6.3.5.2.3 Protective device index. When specified in the TMCR (see 6.2), the protective
device index shall list all protective devices, such as fuses, circuit breakers, and so forth, in tabular
form (see MIL-DTL-24784).
3.6.3.5.2.4 Maintenance turn-on procedure. When specified in the TMCR (see 6.2), include a
maintenance turn-on procedure to energize the equipment from the fully de-energized condition
to full operation (see figure 14-2). This procedure shall enable the technician to determine which
major function or supporting function is malfunctioning. Each step of the procedure shall include
the action to be taken (STEP), the observation to be made (OBSERVE), and shall presume that
normal conditions have been observed in previous steps. Reference shall be made to the
procedure for troubleshooting or corrective action to be used (REFERENCE) if the observation
is out of tolerance. Built-in monitors such as meters, dials, lamps, and so forth, shall be used
when possible for making observations, as opposed to the use of external test equipment. The
procedure is complete when the equipment is fully energized and all switches and controls are
positioned for proper operation. The maintenance turn-on procedure may be presented in a
troubleshooting dependency diagram (see 3.6.3.5.2.8).
3.6.3.5.2.5 Troubleshooting procedures. When specified in the TMCR (see 6.2),
troubleshooting procedures shall be directly related to, and support the troubleshooting diagrams.
Troubleshooting information shall be developed to guide a technician in the logical order of
isolating a fault. This information shall direct the technician to observe meters, fuses, circuit
breakers, valves, built-in test equipment, and other available indications showing the presence of
trouble. The analysis of normal indications in relation to faulty indications shall be stressed. This
information may be in tabular, illustrative, or narrative format, whichever lends to faster
troubleshooting. Test programs shall be developed for digital devices when the method is the
most practical method of troubleshooting logic.
3.6.3.5.2.6 Troubleshooting diagrams. Unless otherwise specified in the TMCR (see 6.2),
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