SECTION V: TROUBLESHOOTING
TM 9-2350-256-20
WARNING
Remove all jewelry such as rings, dog tags,
bracelets, etc. If jewelry contacts a metal
surface a direct short may result in instant
heating of tools, damage to equipment, and
injury or death to personnel.
A
Disconnect wire 54B of flasher system panel wiring
harness from connector at fire extinguisher interlock
switch. Place red lead of multimeter on pin of
connector and black lead to ground. Turn MASTER
and FUEL SHUTOFF switches on and check for
voltage. Turn MASTER and FUEL SHUTOFF switches
OFF. If voltage is present, go to step B. If voltage is
not present, go to step E.
B
Reconnect wire 54B of flasher system panel wiring
harness to connector at fire extinguisher interlock
switch. Disconnect diode lead assembly connector
from fire extinguisher engine shutoff light. Place red
lead of multimeter in connector of fire extinguisher
engine shutoff light and black lead to ground. Turn
MASTER and FUEL SHUTOFF switches ON and
check for voltage. Turn MASTER and FUEL
SHUTOFF switches OFF. If voltage is present,
replace fire extinguisher engine shutoff light (see
paragraph 6-11). If voltage is not present, go to step
C.
C
Reconnect diode lead assembly connector to fire
extinguisher engine shutoff light. Disconnect wire 54B
of flasher system panel wiring harness from diode lead
assembly connector. Place red lead of multimeter on
wire 54B and black lead to ground. Turn MASTER and
FUEL SHUTOFF switches ON and check for voltage.
Turn MASTER and FUEL SHUTOFF switches OFF. If
voltage is present, go to step D. If voltage is not
present, replace/repair wire 54B of flasher system
panel wiring harness.
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