FILLING BALLAST TANKS - USING FIRE PUMP

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DRAINING BALLAST TANKS - USING GRAVITY

TM-55-1905-220-14-2 Landing Craft Unit LCU 1671-1679 (1905-01-009-1056) Manual

FILLING BALLAST TANKS - USING FIRE PUMP (Cont).

TM 55-1905-220-14-2

2-98.- FILLING BALLAST TANKS - USING FIRE PUMP (Cont).

(4)

Aft Engine Room.

(a)

Place disconnect switch in the on position.

(b)

Rotate the end valve (4) counter-clockwise.

(c)

Place flow control .val1ve (5) lever in the off position.

(d)

Place flow control valve (6) lever in the off position.

(e)

Place flow control valve (7) lever in the on position.

(f)

Place check valve (8) lever in the off position.

(g)

Rotate suction valve (9) counter-clockwise.

(h)

Place flow control valve t'10') lever in the on position.

(i)

If the aft ballast tank is to be filled rotate suction valve '(11) counter-clockwise.

(j)

Press the START switch on the fire pump controller. The fire pump will run.

(k)

Fire pump suction vacuum gauge (12) should read approximately 28 Hg. (inches of water)

Change 4

2-553