Deballasting Using Fire Pumps.

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FIGURE 2-250. HALON 1301 Fire Suppression System.

TM-55-1905-223-10 Landing Craft Utility (LCU 200 Class) NSN 1905-01-154-1191 Manual

FIGURE 2-251. Deballasting Using Fire Pumps (Sheet 1 of 6).

TM 55-1905-223-10

NOTE

Alarm siren will sound in paint locker and discharge of HALON will be, delayed for

60 seconds to allow evacuation of area that is to be protected.

(4) Bypass of 60-second discharge delay.

(a) Pull manual release lever on 60-second discharge delay (1) to open.

(b) Open 1/2" glove valve (2, FIGURE 2-250) located at paint locker bulkhead.

(d) Open 50 lb. CO2 cylinder by operating cylinder release lever (3), located on top of cylinder

by raising to upright position.

2-51. Deballasting Using Fire Pumps.

a. Valve Alignment for Discharge (FIGURE 2-251).

(1) Open BB-18, OVBD D,SCH (7).

(2) Open BB-27, TO OVBD DISCH (8).

(3) Align valves for tanks to be deballasted as follows:

(a) SW-1 CL, SW-2P, and/or SW-2S:

1 Open BB-15, SUCT FR SW-1 and SW-2S and SW-2P (1).

2 For SW-1CL, open BB-1, ISLN TK SW-1 (37).

3 For SW-2P, open BB-2, ISLN TK SW-2P (36).

4 For SW-2S, open BB-3, ISLN TK SW-2S (38).

(b) SW-5P and/or SW-5S:

1 Open BB-7, SUCT FR SW-5S AND SW-5P (3).

2 For SW-5P, open BB-4, ISLN TK SW-5P (40).

3 For SW-5S, open BB-5, ISLN TK SW-5S (39).

1 Open BB-11, SUCT FR SW-8S AND SW-8P (2).

2 For SW-8P, open BB-20, ISLN-TK SW-8P (35).

3 For SW-8S, open BB-21, ILSN-TK SW-8S (19).

(4) Open FM-17, FIRE PUMP NO. 2 SUCT (13).