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Tractor Pulling Discussion Forum

wiring up kill switch?

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stupid?

11-19-2007 19:06:57




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How do u wire up the breakaway switch as a kill switch? Need to know so I can put one on my puller I am building. Thanks in advance.




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Mike n Mo

11-19-2007 20:44:06




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 Re: wiring up kill switch? in reply to stupid?, 11-19-2007 19:06:57  
I assume you are working with a distributer system, so this is based on that type of system. Normally you would have a wire from the ignition switch to the + side of the coil (assuming a negative groung system). Instead of making this a direct connection, route this wire to a trailer plug (I used a round 4 wire plug) and then back to the coil. Wire as follows-- wire from the switch goes to any terminal of the female receptical (mounted solid to the rear of the tractor). On the male part of the plug, loop a short piece of wire from the corresponding pin of the wire from the switch to another pin in the male plug, and then a wire from the female pin that corresponds to the second pin back to the coil. Clear as mud??? The idea, in other words, is to break the connection between the power from the ignition switch and the coil by pulling the male end of the trailer plug out if the tractor breaks away from the sled. I have also seen regular 2 prong extension cord ends (male and female) used as the breakaway connection, again using a loop of wire between the male prongs that pulls out(if you use this I suggest lightly taping the 2 parts together so it doesn't fall out). If you aren't sure of what I'm trying to say here, I can draw a diagram and e-mail it to you. Mike

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oliver77

11-19-2007 19:11:59




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 Re: wiring up kill switch? in reply to stupid?, 11-19-2007 19:06:57  
One wire to a ground and the other to the hot side of the coil.



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Eric W

11-20-2007 05:31:16




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 Re: wiring up kill switch? in reply to oliver77, 11-19-2007 19:11:59  
This works with the break-away trailer switches you buy at tsc. The circuit is made when it pulls apart. I ran one wire to each side of the coil.



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mEl

11-21-2007 03:50:58




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 Re: wiring up kill switch? in reply to Eric W, 11-20-2007 05:31:16  
Some are useing an electric brake emergency disconnect switch, one side to a good uninterupted ground , the other to the points side of the coil, when the switch closes it eliminates the points breaking, only one wire required to the back,
Wiring to the "hot side" 12V + of the coil would short out the ignition switch ignition circuit causeing hot wires and possible component damage( on a neg gd system).

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