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TROUBLESHOOTING PROCEDURES - continued - TM-55-1925-292-14-P0139
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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-P0141
TM 55-1925-292-14&P
0009 00
AFFF Pump Does
Not Run
Is
Press the START switch
the POWER
on the AFFF pump
Yes
AVAILABLE lamp
motor controller.
illuminated on the AFFF
pump motor
controller?
Does
the MOTOR
No
RUNNING lamp
Yes
C To Sheet 2
illuminate on the AFFF
pump motor
Check the position of the
controller?
AFFF pump circuit breaker
on the main switchboard.
No
WARNING
Take great care when working
Is
around energized electrical
the circuit
equipment. Contact between
breaker tripped as
Yes
unprotected body parts and
indicated by the breaker
A
electrical conductors can cause
being between the
serious injury or death.
To Sheet 2
ON and OFF
positions?
Measure for 440 Vac
at the motor's junction
No
box.
B
Is
To Sheet 2
Locate and repair the faulty
440 Vac
wiring in the AFFF pump
No
present at the
electrical wiring between the
motor's
AFFF pump motor controller
junction
and the junction box.
box?
Yes
AFFF pump motor is faulty.
Notify the maintenance
supervisor of the defect.
Exit
Procedure 3. AFFF Pump Does Not Run (Sheet 1 of 2)
0009 00-4

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