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Spring thingey??

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Rob

04-01-2003 19:11:06




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What is the spring thingey on the middle point of the "Three point Hitch"? Its the part right behind the seat that makes up the center part of the the three point hitch. Is that part of the hydraulics, or is it just there for stabilization? Why does it have that huge spring? Just curious. ---Rob




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Dell (WA)

04-02-2003 00:01:17




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 Re: Spring thingey?? in reply to Rob, 04-01-2003 19:11:06  
Rob..... ..that upper 3-point spring thing under the seat is one of the great secrets of the Ferguson Hydraulic Draft Control scheme. By now, most of the threaded rod that the spring surrounds is rusted tight and if'n ya break the rod trying to adjust the spring per the I&T FO-4 manual, yer likely to break it. So don't be fer muckin round. They don't make the rod any more..... ...Dell



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Chris9n in CT

04-02-2003 09:18:04




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 Re: Re: Spring thingey?? in reply to Dell (WA), 04-02-2003 00:01:17  
Dell, I have found gives good advice, but this time I believe he is incorrect. I broke my threaded shaft about 1 yr ago and I was able to buy a new one locally (CT) at a tractor place I cannot remmember the name of right now. It was about 25.00

Chris



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James

04-01-2003 19:47:45




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 Re: Spring thingey?? in reply to Rob, 04-01-2003 19:11:06  
That spring is the "Lift Draft Control Spring" and its proper setting is fairly important. Depending on whether you have a 2/9N or an 8N will determine how you test the adjustment of this spring. The FO-4 manual covers both methods and if you are contemplating making any adjustments (particularly on an 8N) I would suggest you obtain a manual before undertaking the task. The spring's basic function is to adjust the draft position of your implement while traversing irregular ground where the front of the tractor's frame may move up and down when referenced to the normal "level" setting of the implement. Other then that....it basicly just sits there and looks tough!

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Scott-NC

04-02-2003 05:02:30




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 Re: Re: Spring thingey?? in reply to James, 04-01-2003 19:47:45  
I've wondered about whether or not the springs seats should be very lightly oiled when making this adjustment? Done dry the friction alone would make the margin for error pretty large. "Two fingers and a thumb snug" is pretty subjective. When you compare someone who works with he hands vs. the average weinie wristed computer geek (no insult is intended) you could get vastly different results.



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Willy-N

04-01-2003 19:38:33




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 Re: Spring thingey?? in reply to Rob, 04-01-2003 19:11:06  
If you are plowing dirt and run into a rock under the ground the back presure against the spring will release the hydraulics so the plow will not break things. Sometimes when using a rear blade on a sharp angle it will do the same and untill you release the presure against the spring your lift will not work. Had it happen a few times. Mark H.



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Roger (WA)

04-02-2003 07:35:46




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 Re: Re: Spring thingey?? in reply to Willy-N, 04-01-2003 19:38:33  
I've had to bypass mine. If I connect it correctly the lift arms won't lift, with it disconnected it seems to work fine, if a bit sloppy. Any suggestions?



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Willy-N

04-02-2003 08:32:57




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 Re: Re: Re: Spring thingey?? in reply to Roger (WA), 04-02-2003 07:35:46  
The adjustment is supposed to be just tight enough that you can turn the spring around by hand. If the spring is loose it may be moving your lift control rod inside the top plate. Mark H.



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