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rtr 09-01-2012 09:20:54 98.83.136.225 Report to Moderator	I am adding some 12 volt electric "air horns" to my 'reconditioned/restored' Ford 641 tractor. I have a question about how I should hook up the wiring regarding the diagram below. I feel like I should use an inline fused wire, and hook it to the junction block as per my drawing on the diagram. Please provide me with input, thoughts, and concerns. THANKS! [Reply]   [No Email]
RTR 09-02-2012 14:47:06 174.154.129.143 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to LME, 09-01-2012 09:20:54   Quoting Removed, click Modern View to see Thank you sooo much!!! Nice job [Reply]  [No Email]
Sean in PA 09-02-2012 11:38:01 71.224.102.32 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to rtr, 09-01-2012 09:20:54   Here you go: [Reply]  [No Email]
RTR 09-02-2012 09:14:01 74.248.177.3 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to soundguy, 09-01-2012 09:20:54   Well if you have the time (and know exactly how it should go), take my wiring diagram and draw in what I need to complete the wiring for the horn USING A RELAY & FUSE SYSTEM. I have a good idea of how it should go, but would like one of you experts to draw it out so I know I am right! THanks again. [Reply]  [No Email]
NoNewParts 09-02-2012 04:28:08 67.240.145.25 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to George Marsh, 09-01-2012 09:20:54   Quoting Removed, click Modern View to see sure, it will work, however, on big amp draw items like horns, a relay is a good idea. simple horn-relay diagram here: (needs fuses/fusible links added) http://www.secondchancegarage.com/public/133.cfm [Reply]  [No Email]
Sean in PA 09-01-2012 13:41:39 71.224.102.32 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to rtr, 09-01-2012 09:20:54   Yes, the diagram is correct for a basic circuit to run the horn, but as I said, the horn will operate with the key switch in the off position, so there is a potential for someone, like kids, to run the horn when the key is off and for the battery to be run down as a result. If you have no worries in that regard, then it is fine as is. [Reply]  [No Email]
Sean in PA 09-01-2012 10:03:06 71.224.102.32 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to rtr, 09-01-2012 09:20:54   First, you probably know this and just forgot to mention it or put it in your diagram, you'll want to add some kind of switch (spring loaded push button or something similar) or the horns will be on all of the time with that diagram. Second, if you want to keep kids from wearing down your battery by playing with the horns when you're not around, you could install a relay that's controlled by a switch that's run off of the key switch, then the secondary side of the relay would connect the battery side of the terminal block to the horns via a fused line. [Reply]  [No Email]
awhtx 09-01-2012 09:34:20 70.167.47.174 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to rtr, 09-01-2012 09:20:54   You're good to go as long as you hook it to the Battery side of the junction block. The weak key switch would probably not be able to handle the current requirements for electric horns. [Reply]  [No Email]
rtr 09-01-2012 11:48:05 98.83.136.225 Report to Moderator	Re: Wiring a 641 Ford - Accessory Question in reply to awhtx, 09-01-2012 09:34:20   You are correct. I have a push button installed on the dash. Therefore, I guess the wiring diagram would read "To Horn Switch" instead of "To Horn". Now that that has been said.....do I have the diagram drawn correctly? [Reply]  [No Email]