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Farmall & IHC Tractors Discussion Forum
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Draft Control on IH 706

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PA Steve

02-03-2004 16:28:11




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I'm looking for any information on how draft control works on these tractors. Any insight is appreciated.




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Aces

02-03-2004 17:50:58




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 Re: Draft Control on IH 706 in reply to PA Steve, 02-03-2004 16:28:11  
The draft control on the IH 706 through the 66 series tractors is a lower link control. The lower link is a torsion bar with a long lever inside the rear end that connects to a lever under the rear end cover. As the torsion bar twists it moves the lever under the dick and activates the hydraulics to the fast or 3point hitch. So say you are plowing, you set the draft lever about half way back then let the plow down with the inside hitch lever when the plow goes into the ground enough to apply the drft or pull to the torsion bar that you have the outside or draft lever set at that is where the draft will hold the plow. If the ground gets a little liter the plow will go deeper untill the same draft or pull equals the draft setting. So you may need to pull the draft back a little so the plow does not go to deep. If ground gets harder the draft or pull gets harder so it will lift the plow to maintain the draft setting. You only use the inside lever to lift the plow out to trun around. There is an off set at the bottom of the inside lever that you should set the inside lever at unless you are in a low gear because of the hard pull of the plow like 3td or lower then you may want to move the inside lever down into the ofset to slow the action of the draft so the tractor does not buck as much with the draft working hard to maintain the draft setting. I don't know much I helped you but the draft on these tractors does work very well if they are working right. That off set domps some of the oil to slow the hydraulic some. The off set can be used for other thinks as well sa the hitch because it will slow the hydraulics for the remote levers as well.

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scotc

02-03-2004 22:28:00




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 Re: Re: Draft Control on IH 706 in reply to Aces, 02-03-2004 17:50:58  
the 86 series work the same, just lever layout is different. DIdn't some tractors have an independant raise response lever, or is my memory playing tricks on me? Also I can't say i've seen the drop response(offset at the bottom of the lever) slow down the remotes.



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Aces

02-04-2004 04:52:44




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 Re: Re: Re: Draft Control on IH 706 in reply to scotc, 02-03-2004 22:28:00  
Scotc all the bigger tractors had to levers outside lever for draft inside lever for lift and lower. The off set will slow down the remotes, the 656 size tractor will not slow down as much because the 2 pumps are put together when fast hitch is added to the tractor. Now to give an idea of what one can do with this, say you had a wagon with hoist to unload put the inside lever all the way down in the off set put the remote to the wagon in the lift possion move the inside hitch lever back in the offset untill the wagon starte to lift a little and start to unload as the load comes off the wagon the hydraulic will lift the wagon the more load you take off the wagon the more it will come up, you don't have to walk back to the tractor to lift the wagon a little at a time. can do same with bale througher leve the lever just at the off set to fill the back of the wagon and move it down into the off set to slow down the hydraulics and fill the front.

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