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Harry Ferguson Tractors Discussion Forum
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What is it?

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Don in VA

12-08-2006 04:42:44




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My TO20 has a broken part that I don't know the name of. The positive battery cable connects to one of its terminals, then a cable goes from there to the starter. The other terminal on it has a wire to the ignition switch. The terminals are bolts or studs and one of them is broken - it wobbles around, is not secure. Can someone tell me the name of this thing and whether I can replace the wobbly terminal (bolt), or do I need a whole new one of whatever this thing is? If I need a new one, does anyone have a part number? Thanks in advance.

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Jerry/MT

12-08-2006 09:26:57




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 Re: What is it? in reply to Don in VA, 12-08-2006 04:42:44  
The other guys are correct. It sounds like the starter safety switch. The wire that goes from the "hot" terminal to the ignition is is most likely the battery source for the primary ignition circuit that goes to the ignition switch. That's the way my 12V TO-30 is wired.

If you absolutely need to get the tractor started, you can by pass the starter safety switch with a heavy "jumper cable" across the existing switch terminals,BUT YOU NEED TO MAKE SURE THE TRACTOR IS NOT IN GEAR!

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Jeff-oh

12-08-2006 08:17:41




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 Re: What is it? in reply to Don in VA, 12-08-2006 04:42:44  
Don, I think Tim is correct. It sounds like the safety starter switch. The location of this switch is on the top of the tractor case under and just forward of the battery.

This switch is normally connected to the tranmission gear shift lever internally such that when you shift the lever to the "s" position the tractor starts.

The extra wire makes me think this feature has been over ridden. Wiring diagrams are available at FENA's web site.

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Tim in Tenn.

12-08-2006 05:41:34




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 Re: What is it? in reply to Don in VA, 12-08-2006 04:42:44  
Don, It sounds like you are refering to the manual starter switch located on top of the transmision. You can get this part from this site, part# 181679M1 $12.74 plus shipping. Just two bolts hold it on. Easy fix!



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