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Page Title:
Table 4. Lighting System Troubleshooting Procedures - Continued. |
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 TM 10-3930-660-24-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 4. Lighting System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
c. Under normal operating
3.
Floodlight(s) Do Not Work - Continued.
conditions, circuit
breakers should never
require replacement.
However, if a circuit
breaker does not reset
after it has cooled, the
circuit breaker is
defective and must be
replaced (WP 0071 00).
3. Check for bad ground
Test floodlight assembly and
connection, broken wire,
wires for continuity (WP 0109
loose connections, or faulty
floodlight assembly.
defective.
4. Check for defective light
Test for continuity in boom,
switches.
front, and rear floodlight
switches. Replace switches if
defective (WP 0069 00).
1. Check if circuit breaker (CB
Test circuit for shorts, broken
4.
Horn Does Not Sound.
10) is tripped.
wire or bad ground. Refer to
a. The circuit breakers will
trip if there is a shorted or
grounded wire.
b. The circuit breakers will
automatically reset after
cooling. They cannot be
reset manually.
c. Under normal operating
conditions, circuit
breakers should never
require replacement.
However, if a circuit
breaker does not reset
after it has cooled, the
circuit breaker is
defective and must be
replaced (WP 0071 00).
2. Check for defective horn
Test horn button and wires for
button or wires.
continuity (WP 0109 00).
3. Check for defective light
Test horn, replace if necessary
switch.
4. Check blackout light switch.
Replace switch if defective (WP
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