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RELIEF VALVE ADJUSTMENT - continued
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TM-55-1925-292-14-P Firefighting Fire Alarm and Fire Suppression Systems Inland and Coastal Large TUG (LT) Manual
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Figure 1. Testing of FM-200 Pressure Switches PS-1 and PS-1A - TM-55-1925-292-14-P0268
TM 55-1925-292-14&P
DIRECT SUPPORT MAINTENANCE
FIREFIGHTING, FIRE ALARM, AND FIRE SUPPRESSION SYSTEMS FOR
INLAND AND COASTAL LARGE TUG (LT)
FM-200 SYSTEM, TEST
INITIAL SETUP:
Personnel Required:
Equipment Conditions:
Two Watercraft Engineers, 88L
Set to ON the FM-200 SYSTEM circuit breaker in
120V main deck, 01 & 02 emergency lighting
References:
panel No. 1.
DA Form 4640
FM-200 system set for normal operation
DA Form 4993
TM 55-1925-273-10
SSDG 1, SSDG 2, bow thruster engine, and the
pump drive engine operating normally (TM 55-
1925-273-10).
EDG ready to accept a load, or vessel operating on
shore power.
TEST
1. Ensure that the equipment controlled by pressure switch PS-1 (figure 1, item 1) identified below has been
powered up and is operating normally (TM 55-1925-273-10):
a. Engine Room Supply Fans 1 and 2
b. Engine Room Exhaust Fans 1 and 2
c.
SSDG 1 and SSDG 2
d. Bow Thruster Engine
e. Pump Drive Engine
f.
AMS 1 Supply Fan
g. Fuel Oil Transfer Pumps 1 and 2
2. Ensure that all other non-essential equipment has been properly secured.
NOTE
If the vessel is operating on the ship's service diesel generator, the vessel will go dark
once pressure switch PS-1 is activated and will remain dark until the emergency gen-
erator comes online.
3. Manually operate pressure switch PS-1 (figure 1, item 1) by pulling up on the plunger (figure 1, item 2) to the
OPERATED position.
4. Verify that the amber strobe lights are operating in AMS 1, AMS 2, and the engine room.
5. Verify that the alarm bell sounds on the exterior main deck.
6. Verify that the equipment controlled by pressure switch PS-1 (figure 1, item 1) identified in step 1 of this work
package is no longer operating.
0030 00-1

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