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 TM 55-1925-273-10-1
OPERATOR'S MANUAL
INLAND AND COASTAL LARGE TUG (LT)
OPERATION UNDER USUAL CONDITIONS
FIRE MAIN, GENERAL SERVICE, AQUEOUS FILM FORMING FOAM (AFFF),
AND WASHDOWN COUNTERMEASURE SYSTEM
INITIAL SETUP:
Personnel Required:
One Watercraft Engineer, 88L
One Watercraft Operator, 88K
GENERAL
The following procedures are included in this work package:
1. Pressurization of the fire main and general service system
2. High level sea chest operations
3. Individual fire station operation
4. Pressurize the fire main with the diesel engine-driven firefighting pump
5. Foam system activation
6. Fire monitor operation
7. Foam system shutdown
8. Fire monitor shutdown
9. Secure the pump drive engine
10. Washdown Countermeasure (WDCM) system operation
NOTE
Only one fire and general service pump is necessary to keep the fire main pressurized, fire and
general service pump 2 is normally aligned to the general service system.
PRESSURIZATION OF THE FIRE MAIN AND GENERAL SERVICE SYSTEM
1.
Align the electrical system by completing the following actions:
a.
At the emergency switchboard, in the emergency diesel generator room, set the FIRE PUMP NO. 1 circuit breaker
(figure 1, item 1) to ON.
b.
At the main switchboard, in the EOS, set the FIRE PUMP NO. 2 circuit breaker (figure 2, item 1) to ON.
c.
Energize the fire pump motor controllers in AMS 2 by completing the following actions:
(1)
Set the LOCAL-REMOTE switch (figure 3, item 1) for each controller to the LOCAL position.
(2)
Set the ON-OFF switch (figure 3, item 2) for each controller to ON.
(3)
Verify that the POWER AVAILABLE light (figure 3, item 3) for each controller illuminates.
0071 00-1
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