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Train horns

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Bdog, Dec 23, 2015.

Page 1 of 2
  1. Dec 23, 2015 #1
    Bdog

    Bdog Road Train Member

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    Both my air horns on the roof have holes rusted in them and no longer work. I was thinking of maybe train horns instead of just replacing them with the same ones.

    All the train horns I have been looking at have electrical connections on them which has me confused. Can't I just run an air line from the valve the operates my current horns to the train horns or do they need the electric switch for something?
     
    Bdog, Dec 23, 2015
    Bdog, Dec 23, 2015
    #1
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  3. Dec 23, 2015 #2
    burnsey

    burnsey Light Load Member

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    Jan 24, 2014
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    A lot of times those train horns need a _LARGE_ volume of air, and use a larger air line than your rooftop horns might use. The electric connection operates a relay that will allow all that air through the horns at once.
     
    burnsey, Dec 23, 2015
    burnsey, Dec 23, 2015
    #2
  4. Dec 23, 2015 #3
    Bob Trehus

    Bob Trehus Light Load Member

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    Nov 4, 2015
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    You can remove the electric solenoid in the center and replace it with 3/8 airline to a threaded connector then to a ball valve controller then to any air supply... I pull directly of my primary tank...
     
    Bob Trehus, Dec 23, 2015
    Bob Trehus, Dec 23, 2015
    #3
    chopper103in Thanks this.
  5. Dec 23, 2015 #4
    chopper103in

    chopper103in Road Train Member

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    they will suck some air real fast
     
    chopper103in, Dec 23, 2015
    chopper103in, Dec 23, 2015
    #4
  7. Dec 23, 2015 #5
    Bob Trehus

    Bob Trehus Light Load Member

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    This is true brother... Make sure you check to see how fast your air pressure drops... Some guys use a check valve to shut the air to the horn down before pressure drops under 90lbs...
     
    Bob Trehus, Dec 23, 2015
    Bob Trehus, Dec 23, 2015
    #5
    chopper103in Thanks this.
  8. Dec 23, 2015 #6
    Bdog

    Bdog Road Train Member

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    That would suck - blow the horn and the brake valves pop out lol
     
    Bdog, Dec 23, 2015
    Bdog, Dec 23, 2015
    #6
    burnsey and chopper103in Thank this.
  9. Dec 23, 2015 #7
    j_martell

    j_martell Light Load Member

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    Jun 12, 2014
    Centre Wellington, Ontario
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    Saw it happen....guy pulled his newly installed train horns while pulling away, and POP....Stall...."crank of shame"
     
    j_martell, Dec 23, 2015
    j_martell, Dec 23, 2015
    #7
    chopper103in Thanks this.
  10. Dec 23, 2015 #8
    Bob Trehus

    Bob Trehus Light Load Member

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    Truly not his coolest moment...
     
    Bob Trehus, Dec 23, 2015
    Bob Trehus, Dec 23, 2015
    #8
  11. Dec 23, 2015 #9
    Bob Trehus

    Bob Trehus Light Load Member

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    Nov 4, 2015
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    The neat thing about using a ball valve over the electric solenoid is the much wider variety of sound that can be produced over the full on of the electric solenoid...
     
    Bob Trehus, Dec 23, 2015
    Bob Trehus, Dec 23, 2015
    #9
  12. Dec 23, 2015 #10
    Bdog

    Bdog Road Train Member

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    Nov 6, 2014
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    Bdog, Dec 23, 2015
    Bdog, Dec 23, 2015
    #10
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