TM 5-5420-226-20-1
Symptom-54
DETAILED TROUBLESHOOTING
PROCEDURE
SUPPORT SYSTEM - FIRE EXTINGUISHER
(Continued)
1Checkfront accessoryharnessfrom contactB (CKT
975) of connector
at fire extinguisher
relay to
connector
at fire extinguisher
relay circuit
breaker.
IFirstTechnician(CommandersStation)
Il Connect red probe of meter to contact B (CKT 975) of
front
accessory
harness
connector
at fire extinguisher
I
relay.
l Connect
black
probe
of meter
to one connector
(CKT
975) at tire extinguisher
relay
circuit
breaker.
I l Check if meter indicates continuity.
4
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TA107266
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4-577