TM 55-1930-209-14&P-12
Table 3-1. Foghorn Major Components
Component
Location
Function
Foghorn remote control
Dayroom on forward
For manual or automatic activation of
assembly
bulkhead
foghorn
9001-0454
Regulator converter
Dayroom on forward
Converts 24 Vdc input to 12 Vdc out-
assembly 9040-0033
bulkhead
put required by foghorn
Foghorn
Deckhouse top on
Produces an omidirectional signal
FA 390/1
portside forward
that can be heard 1/2 mile away
3-6.3 Repair parts and special tools onboard are listed in the Repair Parts and Special Tools List in TM 55-1930-209-
14&P-18.
3-7 Items required but not furnished. All required items are furnished.
.
3-8 Tools and test equipment. Use existing tools and equipment onboard. A complete list of tools and test equipment
onboard is in the Tools and Test Equipment List in TM 55-1930-209-14&P-18.
Section II. Description of operation
When foghorn ON/OFF switch on foghorn remote control is set to ON and foghorn pushbutton is pressed foghorn
will automatically sound periodically. Foghorn will sound until foghorn switch is set to OFF.
Section III. Operating instructions
3-9 Operating controls and indicators. Foghorn controls are shown in Figure 3-1.
3-10 Prestart procedures. The following procedures should be performed by operator before activating foghorn.
a.
Make sure foghorn ON/OFF switch is off.
b.
Make sure circuit breaker 6P14 on 24 Vdc power panel is closed (ON).
3-11 Operating procedures.
a.
Turn foghorn ON/OFF switch on remote control box (Figure 3-1) to ON.
b.
Press foghorn button to start foghorn sound.
NOTE
Foghorn will automatically sound for 2 seconds, be silent for 18 seconds, and repeat cycle until
stopped.
3-12 Shutdown procedure. To stop foghorn, set foghorn ON/OFF switch to OFF.
3-13 Operation under extreme conditions. In cold weather.
a.
Do not bend cables or cords suddenly.
b.
Keep foghorn ON/OFF switch ON. If impossible, allow foghorn remote control to warm up before sounding
foghorn.
c.
Keep ice off foghorn. Exercise care not to damage foghorn or electrical connections.
3-3
