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Old 11 October 2004, 00:13   #11
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Wiring Up Horn

Hi JW!

First of all JW I want to thank you for helping out.I think I lost you in the wiring.It sounds like I need a three pole push button switch.Is that right because if I am taking a cable from the fuse box it will be a red positive cable and I am connecting it to pole other then the positve pole of the switch.So does that mean I connect the fuse box cable to the negative pole of the switch or the other pole of the three pole switch.Does this sound like I am lost or what.I wish I had a diagram of your wiring because reading it and see it on paper makes a world of difference.I just can't picture it in my head when I read it.Sorry about that can you explain it in more detail if that's not problem.
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Old 11 October 2004, 07:55   #12
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Henry, I think you should buy a basic book on simple electrical circuits. Then come back and ask the questions.
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Old 11 October 2004, 11:36   #13
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Wiring a Horn

JW
I want to ask you a question,I wanted to check the horn out so I connected the horn to the battery with negative wire to the negative pole and touching the positive wire to the positive pole,shouldn't the horn sound off.But it didn't is the horn broken or is it that it doesn't work by doing that.JW the thing is I didn't think I would be having a problem hooking this horn since I hooked all my other electronics up to the boat with no problem plus the wiring in my house,so why I can't do this,well who knows.
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Old 11 October 2004, 16:49   #14
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I'm a bit reluctant to continue with this, Henry but here goes.... Yes, the horn should work if connected as you describe, however, horns are delicate and they can easily be silenced, particularly if the attachement screw is on the side and you overtighten it a bit. Some of the cheap horns will stop working with even the smallest amount of stress.

Now then, depending on the type of horn, there is likely to be an adjuster in the form of a screw, possibly with a locknut, either on the outside of the case or, more likely, under the side cover. If it's a trumpet, it's under the end cover. If it's not visible on the outside take off the side cover, locate the screw and it is possible to adjust to get the horn sounding again. Best done with the assistance of a helper. This, of course, presumes the horn is not seriously old, knackered or fried and that the battery is good.

Connect the horn to the battery and turn the adjusting screw in small increments. My guess is to start by screwing it in, clockwise. If, after a half turn, there is no indication that it is starting to sound then return it to the original position and begin to turn it in the opposite direction. If it is going to sound, it will.

It will begin to squeek, this turns into the full blast and then diminishes as you adjust past the best setting.

Do not leave it connected to the battery for a prolonged period.

Assuming it is now working, you may find that after mounting it stops or reduces in output. You will need to adjust incorrectly it so that the stress of mounting pulls it back into sync.
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Old 11 October 2004, 19:08   #15
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wiring a horn

JW
Thanks alot for your help I understand.
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