SECTION IV. OPERATION UNDER UNUSUAL CONDITIONS

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Rigging LCU to TOW - CONTINUED

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

Operate Main Switchboard on Emergency Power.

TM 55-1905-223-10

SECTION IV. OPERATION UNDER UNUSUAL CONDITIONS

Para.

Page

2-46

General .............................................................................................................................. 2-641

2-47

Power Generation ................................................................................................................2-641

2-48

Gyro Compass .....................................................................................................................2-642

2-49

Steering System Failure.......................................................................................................2-648

2-50

Halon 1301 Fire Suppression System .................................................................................2-651

2-51

Deballasting Using Fire Pumps............................................................................................2-654

2-52

Bow Ramp............................................................................................................................2-663

2-53

Main Engine Cold Weather Starting.....................................................................................2-669

2-54

Rigging the LCU To Be Towed ............................................................................................2-682

2-55

Firefighting System Operation .............................................................................................2-685

2-56

Launch and Retrieve Workboat In Heavy Weather .............................................................2-704

2-57

Launch Liferafts....................................................................................................................2-707

2-58

Nuclear, Biological and Chemical (NBC) Decontamination Procedures .............................2-707

2-59

Heavy Weather Preparations...............................................................................................2-709

2-60

Transfer of Fuel Using Hand Pump .....................................................................................2-710

2-61

Shore Power Connections ...................................................................................................2-717

2-62

Emergency Control for AHEAD Only ...................................................................................2-720

2-63

FM-200 Fire Suppressant System .......................................................................................2-721

2-64

Water Washdown System (WWS) .......................................................................................2-741

2-46. General. This section contains operating procedures for individual equipment during periods of

equipment failure and periods of unusual weather conditions.

2-47. Power Generation. Normal power from ship service generator, through the main switchboard,

keeps the main and emergency switchboard bus tie circuit breakers closed. This voltage is also applied

to the emergency switchboard emergency generator circuit breaker, to prevent it being closed. In the

event of ship service power failure, the main switchboard and emergency switchboard bus tie circuit

breakers will open. Simultaneously, several actions take place: (1) A mechanical dead bus timer will

start, energizing the autocrank circuit of the emergency generator; (2) Batteries will provide power to

emergency communications and lighting circuits; (3) The dead bus timer starts a 45-second time delay

allowing the emergency generator on the emergency switchboard. These actions do not require operator

intervention.

a. Emergency Equipment Available. When the emergency generator is supplying power to the

emergency switchboard, the following equipment is operable:

(1)

Emergency generator jacket water heater

(2)

Fuel oil transfer pump number 2

(3)

Starboard steering gear system

(4)

Radio communication system

(5)

Wheelhouse lighting system

(6)

Wheelhouse intercommunications/lighting panel

(7)

Emergency lighting below main deck

(8)

Battery chargers

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2-641