TROUBLESHOOTING PROCEDURES - continued - TM-55-1925-292-14-P0147

TM 55-1925-292-14&P

0009 00

From Sheet 1

Reset the circuit breaker by

setting it to OFF and then setting

it to the ON position.

the circuit

Set the circuit breaker

breaker in the

to the ON position.

ON position?

Yes

Place pressure switch PS-1

UP in the OPERATE position,

and measure for 115 Vac

across terminals 8 and 5 in PS-1.

Locate and repair the

faulty wiring in the FM-200

120 Vac

system between the

present?

circuit breaker and pressure

switch PS-1.

Yes

WARNING

Take great care when working

around energized electrical

equipment. Contact between

unprotected body parts and

electrical conductors can cause

serious injury or death.

Does

pressure

Set the FM-200 SYSTEM

Pressure switch PS-1 is

switch PS-1

circuit breaker in the 01 and 02

faulty. Notify the maintenance

check

emergency lighting panel 1 to

supervisor of the defect.

good?

OFF and place PS-1 up in

the OPERATE position.

Measure for continuity across

pins 8 and 9 and pins 5 and 6

Yes

in pressure switch PS-1.

Locate and repair the

faulty circuit in the FM-200

system electrical wiring

between 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 2 of 2)

0009 00-11