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TROUBLESHOOTING PROCEDURES - continued - TM-55-1925-292-14-P0145
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TM-55-1925-292-14-P Firefighting Fire Alarm and Fire Suppression Systems Inland and Coastal Large TUG (LT) Manual
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TROUBLESHOOTING PROCEDURES - continued - TM-55-1925-292-14-P0147
TM 55-1925-292-14&P
0009 00
Engine Room FM-200 Alarm Bell Does
Not Sound when the FM-200 System
is Actuated
WARNING
Does
Take great care when working
any amber
around energized electrical
Yes
strobe light flash
equipment. Contact between
when the FM-200
unprotected body parts and
system is
electrical conductors can cause
actuated?
serious injury or death.
No
Place pressure switch PS-1 UP in
the OPERATE position, and
measure for 120 Vac between the
Check the condition of the FM-200
black and white wires of the
SYSTEM circuit breaker in the
engine room FM-200 alarm bell.
01 & 02 emergency lighting panel 1.
Is
The engine room FM-200
Yes
120 Vac
alarm bell is faulty. Notify
present?
the maintenance
supervisor of the defect.
No
Is the
circuit breaker
WARNING
tripped as indicated
Yes
Take great care when working
by the breaker being
A
around energized electrical
between the ON and
equipment. Contact between
To Sheet 2
OFF positions?
unprotected body parts and
electrical conductors can cause
serious injury or death.
No
Measure for 120 Vac across
terminals 2 and 3 in junction
box FM2-JB2.
B
To Sheet 2
Locate and repair the
faulty circuit in the FM-200
Is
system electrical wiring
Yes
120 Vac
between junction box
present?
FM2-JB2 and the engine
room FM-200 alarm
bell.
No
Locate and repair the
faulty circuit in the FM-200
system electrical wiring
between pressure switch
PS-1 and junction box
FM2-JB2.
Exit
Procedure 6. Engine Room FM-200 Alarm Bell Does Not Sound When The FM-200 System is Actuated
(Sheet 1 of 2)
0009 00-10

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