This Section contains organizational troubleshooting
information for locating and correcting common malfunctions which may develop
in shelter electrical system.
The shelter contains voltages that are dangerous if
Take appropriate precautions when trouble-
Before performing continuity checks or
replacing electrical components, make sure that
electrical power is disconnected from circuit involved.
Each malfunction for an individual component or unit
is listed in paragraph 4-6.
The malfunction is followed by a list of tests or
inspections which help to determine probable causes and corrective actions to
The tests or inspections and corrective actions are to be performed in
the order listed in the table.
All malfunctions that may occur and all tests
or inspections and corrective actions may not be listed.
If a malfunction is
not listed or is not corrected by corrective action, notify your supervisor.
Unless otherwise noted, when troubleshooting operation of shelter electrical
system, all switches and circuit breakers shall be placed in operating
positions with power connected.
The electrical system schematic diagram
(4-45) and wire list (4-46) are located at the end of Chapter 4, Section III.
4-6. ORGANIZATIONAL MAINTENANCE TROUBLESHOOTING
TEST OR INSPECTION
NO POWER DISTRIBUTION TO SHELTER.
Check that outside power is properly connected to service
entrance on power entry panel, check general condition of
cable and connectors.
Test operation of power entry
Replace defective wiring (paragraph 4-8).
Replace defective connectors (paragraph 4-8).
Test operation of main circuit breaker and wiring
Replace defective wiring (paragraph 4-7).
Replace defective circuit breaker (paragraph 4-7).