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 TM 55-1925-273-10-1
OPERATOR'S MANUAL
INLAND AND COASTAL LARGE TUG (LT)
OPERATION UNDER USUAL CONDITIONS
PREPARATION FOR USE
INITIAL SETUP:
Personnel Required:
One Watercraft Engineer, 88L
GENERAL
The procedures contained in this work package are provided for the use of personnel while operating the LT. It is important
for the operators/crew to have a basic understanding of the performance of all vessel operations. Performing multiple
procedures simultaneously requires the operators to act in a coordinated manner to ensure proper performance of the tasks
assigned. The operators may have to vary given procedures to fit the individual tasks as required.
NOTE
This operating procedure assumes that all circuit breakers/switches on the power distribution
panels, lighting panels, load center panels, switchboards, and equipment are in the OFF position,
and that the vessel is connected to shore power.
1.
In the emergency diesel generator room, at the emergency diesel generator switchboard, set the 3-10KVA 1 XFMRS
circuit breaker (figure 1, item 1) to ON.
2.
In the emergency diesel generator room, at the emergency diesel generator control panel, set the RESET control switch
(figure 2, item 1) to OFF.
NOTE
Circuit breakers for equipment vital to the LT operation are located on the emergency switch-
board bus. They are electrically powered from the main switchboard bus tie. These systems
operate on normal ship power and/or emergency power
3.
In the enclosed operating space, at the main switchboard, set the BUS TIE CIRCUIT BREAKER (figure 3, item 1) to
ON. Place all other main switchboard circuit breakers in the OFF position.
1
Figure 1. Emergency Switchboard
0068 00-1
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