TM 55-1930-209-14&P-15-11 Performance characteristicsPower input12 Vdc, 2AFrequency390 .3 HzDistance of sound1/2 mile in all directionsFrequency of sound2 seconds with 18 seconds silenceSound level122.7 dB @ 12V5-12 Description of operation.When foghorn ON/OFF switch on foghorn remote control is set to ON and foghornbutton is pushed, foghorn will automatically sound periodically. Foghorn sounds until switch is set to OFF.5-13 Operating Instructions5-13.1 Operating controls and Indicators. Foghorn controls are shown in Figure 5-12.5-13.2 Prestart procedures. Following procedures are performed by operator before activating foghorn.a.Perform before operation checks below:(1)Make sure foghorn installation is complete.(2)Check for corrosion or rust. Clean and touch up paint as necessary. See paragraph 5-7.2a.(3)Check controls to make sure that switches or pushbuttons are not missing, broken, or loose and thatcontrols operate properly.(4)Check for loose plugs and jacks. Tighten if necessary.(5)Check for loose mountings, hardware, brackets, etc. Tighten as necessary.b.Make sure foghorn ON/OFF switch is OFF.c.Make sure circuit breaker 6P14 on 24 Vdc power panel is dosed (ON).5-13.3 Operating proceduresa.Turn foghorn ON/OFF switch on remote control box (Figure 5-12) to ON.b.Push in foghorn button to start foghorn sound.NOTEFoghorn sounds for 2 seconds, is silent for 18 seconds, and repeats cycle untilstopped.5-13.4 Shutdown procedure.When foghorn is to be stopped, set foghorn ON/OFF switch to OFF. Perform beforeoperation checks in paragraph 5-13.2a as appropriate.Table 5-3. Foghorn Major ComponentsComponentLocationFunctionFoghorn remote controlDayroom on forward bulkheadFor manual or automaticactivation of foghornRegulatorDayroom on forward bulkheadConverts 24 Vdc input to 12Vdc output required byfoghornFoghornDeckhouse top on portsideProduces an omnidirectionalforwardsignal that can be heard 1/2mile away5-21
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
