CO2 Fire Extinguishing Equipment Operation

Custom Search

Figure 2-23. Engine cooling system diagram.

TM-55-1925-204-12 TUG Harbor Diesel 1200 H. P. Steel 100 Ft Design 3006 Flight One FSN 1925-375-3003 Manual

Figure 2-24. Bilge and ballast piping diagram.

Operation

Open valve

Close valve

Procedure

To cool main engine, using standby

(5)

(17)

pumps-- continued

(11)

(9)

(8)

(13)

(15)

(28)

(10)

(12)

(26)

(18)

(19)

To fill expansion tank.

(1)

(4)

Observe sight glass and close valve (1)

(2)

when tank is full.

(6)

NOTE

(7)

Always keep expansion tank at least

two-thirds full.

NOTE

2-19. CO2 Fire Extinguishing Equipment Operation

a. Installed Equipment. The installed (fixed) CO

The valve can be opened and closed

equipment (para. 4-2) release (pull box) is located on

repeatedly without loss from leakage.

bulkhead outside the engineroom door, port side.

(g) When continuous operation is desired,

Operate as follows:

the dip yoke ring to the carrying handle is slipped over

WARNING

the operating release lever, when the lever is

depressed.

All crew members must be out, and

(2)

To operate the disc-type valve CO2

clear of the engineroom before the

extinguishers, proceed as follows:

release handle is pulled. If time

(a) Repeat steps (a) through (c) in (1)

permits, close and secure all

above.

compartment doors, hatches, and

(b) Open valve by turning wheel to left, and

vents.

start discharge of CO2 on the fire.

(1) In the event of a fire in the engineroom,

break glass and pull the release handle. This action

above.

releases the CO2 from twelve 50-pound cylinders

NOTE

through the eight nozzles located in engineroom, and

The discharge of CO2 may be

sounds the siren alarm. When the release is pulled all

temporarily halted by turning valve

ventilation blowers in the engine room will be

wheel to right.

automatically secured.

(d) Close the valve as soon as conditions

NOTE

permit, and continue to open and close the valves as

Open all vents, doors, and hatches as

necessary.

soon as the fire is out.

(e) Do not stop the discharge too soon.

(2) To reset the CO2 release, push the release

When the flame has been extinguished, coat the entire

handle to the SET position.

surface around the fire area with CO2 "snow". This

b. Hand Extinguishers. There are eight 15- pound

coating will retard or prevent reflash.

and four 4-pound extinguishers installed throughout the

tug.

2-20. Bilge and Ballast, and the Fire and Salvage

(1)

To operate the sequence grip CO2

System Operation

extinguisher, proceed as follows:

a. General. The bilge and ballast, and the fire and

(a) Carry the extinguisher in an upright

salvage system is an interconnected piping system with

position and approach the fire as closely as possible.

two diesel engine driven fire and salvage pumps, one

(b) Remove the locking pin from the valve.

motor driven fire pump, and a motor driven bilge and

ballast pump.

(d) Squeeze the release lever, and at the

b. Bilge and Ballast System. This system's motor

same time direct the flow of CO2 toward the base of the

driven pump is located on starboard side of the

fire.

engineroom. A hand operated rotary pump is used to

(e) Fight the fire from windward side, so

pump bilge from chain locker, and is located on

that the wind will blow the heat away from the operator,

bulkhead aft of the chain locker. There are eight bilge

and at the same time carry the CO2 over the fire.

suction points that can be pumped. Two are located in

(f)

When fighting fire in electrical

engineroom on port and starboard side. Two are

equipment, or on a bulkhead, direct the discharge at the

located in crew quarters on port and starboard side.

bottom of the flaming area. Move the horn slowly from

Two are located in aft

side-to-side, and follow the receding flames upward.

2-48