FIRE DETECTION SYSTEM, REPAIR - TM-55-1925-292-14-P0235

TM 55-1925-292-14&P

0026 00

DIRECT SUPPORT MAINTENANCE

FIREFIGHTING, FIRE ALARM, AND FIRE SUPPRESSION SYSTEMS FOR

INLAND AND COASTAL LARGE TUG (LT)

FIRE DETECTION SYSTEM, REPAIR

INITIAL SETUP:

References:

Tools and Special Tools:

FM 55-502

Tool Kit, General Mechanic's (Item 1, Table 2,

Multimeter (Item 3, Table 2, WP 0046 00)

Materials/Parts:

WP 0050 00

Tag, Danger (Item 8, Table 1, WP 0050 00)

Equipment Conditions:

Personnel Required:

Set to OFF the FIRE DETECTION SYSTEM. cir-

Two Watercraft Engineers, 88L

cuit breaker in 120V emergency distribution

panel No. 1. Lock out and tag out (FM 55-502).

OPEN ENCLOSURE

1. Using the proper key, OPEN the door to the fire and smoke detection panel.

WARNING

Take great care when working around electrical equipment. Contact between

unprotected body parts and electrical conductors can cause serious injury or

death. Do not wear jewelry or other conductive items while servicing energized

electrical equipment. Failure to comply with these precautions can cause seri-

ous injury or death.

2. Remove the fuse cover (figure 1, item 1) from the plastic retaining pins (figure 1, item 2).

3. Take voltage readings with a multimeter at the PS-35 TB-1 terminals 1, 2, and 3 (figure 1, item 3). If voltage

is present, verify that the correct circuit breakers are OFF, locked out, and tagged out (FM 55-502). If no

voltage is present, continue with the procedure.

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