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how do the diesel pulling tractors wire a kill switch


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#1 searspullingtractor OFFLINE  

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Posted January 03, 2016 - 10:58 PM

just kill the fuel? looking for the one that hooks to the back of the sled. if have pic that would be great. have to have one for my class this year. any ideas  


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#2 MH81 ONLINE  

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Posted January 03, 2016 - 11:23 PM

Good Question, google gave me a couple pics of valves with pull rings
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#3 searspullingtractor OFFLINE  

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Posted January 03, 2016 - 11:27 PM

thats what i looked at to mine has the throttle then the kill its a stock Kubota d722



#4 Dieselcubmike OFFLINE  

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Posted January 04, 2016 - 12:30 AM

Its a little more than just killing the fuel. If yours is turbocharged you need to also shut off the air to it, and also kill power to your fuel pump. You need to kill off 3 things in order for it to work properly. I have all 3 hooked to one switch. 


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#5 searspullingtractor OFFLINE  

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Posted January 04, 2016 - 12:50 AM

It's not turbocharged yet how do you kill it to the sled

#6 Dieselcubmike OFFLINE  

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Posted January 04, 2016 - 01:16 AM

You need to hookup and air shut off to the intake, wire your fuel pump, and ignition to a kill switch


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#7 DaveBb OFFLINE  

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Posted January 05, 2016 - 04:28 PM

Mike shutting off injection pump and supply pump is not enough? easy to do with a solenoid..


Edited by Saxist, January 05, 2016 - 04:29 PM.


#8 Dieselcubmike OFFLINE  

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Posted January 06, 2016 - 12:06 AM

21. Kill switch device mounted on rear of tractor must disconnect power to electric fuel pump along with activating turbo guillotine.

 

This is from the nqs rules we made awhile back. Back in the harrisburg pull mine and my dads was tested to make sure it properly worked. Since we make our own guillotines it was an easy install just has to make sure everything is hooked up correctly. In his situation he can still run a guillotine on the intake. It will shut if off very quickly. 


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#9 Alc ONLINE  

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Posted January 06, 2016 - 06:21 AM

Mike is the reason for the guillotine on the intake in case the seals leak oil out on the turbo ?



#10 Dieselcubmike OFFLINE  

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Posted January 06, 2016 - 03:28 PM

Mike is the reason for the guillotine on the intake in case the seals leak oil out on the turbo ?

What happens and im sure everyone has seen or head of a diesel "running away" in which the engine draws extra fuel from an unintended source and overspeeds at higher and higher RPM until destroyed by mechanical failure or bearing seizure through lack of lubrication. It is very rare that it does happen. The idea of the air guillotine is to trap any and all air to the inside of the engine to quickly shut down the engine in the emergency that the chain breaks on the sled, the driver looses control of the vehicle, or in the rare case that the engine tries to runaway. Ive had the issue of the oil seal go out on my turbo. All is did was feed the engine raw oil. Smoked like crazy and also didnt help for performance as it caused it to become tired and sluggish.


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#11 DaveBb OFFLINE  

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Posted January 07, 2016 - 08:46 PM

Well guess I better add that to my to do list lol.... seems like alot of work.



#12 Dieselcubmike OFFLINE  

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Posted January 07, 2016 - 10:54 PM

Its actually really not alot of work. I have a few extra guillotines laying on the shelf. Very simple to setup. The same way with the wiring to the fuel pump. 



#13 searspullingtractor OFFLINE  

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Posted January 09, 2016 - 12:18 AM

Dieselcubmike it's not a electric fuel pump on mine any other way to kill it

#14 Dieselcubmike OFFLINE  

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Posted January 09, 2016 - 01:18 PM

What engine are you using? That would better help me. If it has a pulse pump you should still be able to kill power to it. Other than that you will need an air guillotine to kill the air going to it. 


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#15 searspullingtractor OFFLINE  

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Posted January 10, 2016 - 11:34 PM

D722




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