Firemain Activation .

TM 55-1915-200-10

l. Set circuit breakers (35, 36, 37, 38, 39, and 40,

c. Turn OFF/ON switch (110) to ON position.

FIGURE 2-102, Sheet 2 of 7) to ON position.

d. Observe pump discharge pressure gauge (32,

m. Set circuit breakers (42, 45, 47, and 48,

FIGURE 2-106, Sheet 5 of 12). If no pressure is

FIGURE 2-102, Sheet 3 of 7) to ON position.

indicated on gauge (32) within 30 seconds, turn switch

(110, FIGURE 2-103, Sheet 6 of 7) to OFF position.

n. Set circuit breakers (52, 53, 54, 55, 56, 57, 58,

Notify unit maintenance.

59, and 60, FIGURE 2-102, Sheet 4 of 7) to ON

2-5.3. Compressed Air System-Engine Room.

position.

a. Align Engine Room Compressed Air System

2-5.2. Firemain Activation .

(FIGURE 2-108) as follows:

a. Align fire/bilge pump piping system (FIGURE 2-

107) as follows:

(1) Close all compressed air system valves in

engine room.

(1) Close all valves in fire/bilge pump piping

system.

(2) Open compressor discharge valve (21,

Sheet 1 of 4).

CAUTION

Sea chest cutout valve (25) is to the

(3) Open both receiver inlet valves (22,

Sheet 3 of 4).

low sea chest. Its intake from the

sea is on the bottom of the hull. If

(4) Open both receiver outlet valves (2,

LSV is beached, this sea chest will

Sheet 2 of 4).

be blocked.

In a beached

(5) Open pressure gauge cutout valves (5

configuration, high sea chest cutout

and 11, Sheet 2 of 4).

valve (24) must be used as its intake

(6) Open pressure gauge cutout valves (67

from the sea is on the side of the

and 70, Sheet 3 of 4).

hull.

(7) Open reducing station inlet valve (14,

(2) Open low sea chest cutout valve (25,

Sheet 3 of 4).

Sheet 1 of 2).

(8) Open reducing station outlet valve (17,

(3) Open sea water suction valve (13).

Sheet 3 of 4).

(4) Open fire/bilge pump suction valve (19).

(9) Open main engine starting air station inlet

(5) Open fire/bilge pump discharge valve

valve (9, Sheet 2 of 4).

(11).

(10) Open main engine starting air station

(6) Open discharge pressure gauge cutout

outlet valve (7, Sheet 2 of 4).

valve (9).

(11) Open inline stop valve (23, Sheet 1 of 4).

(7) Open discharge valve (7) to fire main.

b. On Engine Room Motor Control Center

(FIGURE 2-103, Sheet 6 of 7), set circuit breaker (108)

to ON

2-330