What Sas said is what I was saying. I disked the last 10 acres this fall on the Tree Farm Reclamation project with the D6 pulling a big disk similar to the Rome. The guys it was borrowed from normally pull it with a CAT Challenger. I found it pulled slightly to one side making the D6 work hard to pull straight. By pulling the pin so the drawbar would swing allowed the disk to track where it wanted, then enhanced the turning shorter radius in the corners.

Swinging drawbar will help in turning (particularly with offset disk and crawler)

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but primarily allows the disk to find its natural draft point behind the tractor.

The hitch (tongue) adjustment facilitates the draft alignment of the disk

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leveling of the disk front to rear will also effect the drafting (front gangs pull one way

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rear opposite)

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new blades will typically dig/draft more than older blades. Front gang is cutting undesturbed soil

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rear gang is cutting soil already partially cut.

An offset disk of any brand can require a little more tinkering in the tuning process than the typical tandem disk. But

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the offsets usually penetrate better and will leave the soil in the same finish condition if adjusted properly.

Delta Dirt

Thanks for posting the cartoon, Sasquatch. That is a pretty nice high Ten the guy in the cartoon is using. I magnified the cartoon up to 400% in my web browser, but couldn't quite make out the serial number. Nifty disc setup, too.

Drujinin - I think the pull to one side you mention is probably caused by the factors Delta Dirt mentioned. I believe that could have been counteracted by adjusting the hitch, as ROME/KG mentioned. The idea of the hitch is to locate the tractor where you want side to side in front of the implement. This not only puts the tractor where you want, but aligns the pull from the tractor with the drag of the load.

The drag of the load is affected by a balancing of all the things that Delta Dirt mentioned, and will be affected by changes to the implement, such as wear in the blades, angle of the disc. It will also be affected by changes in the soil and nature of material being worked. An implement might pull in one manner in one field, but to be perfect, might need adjustment in a different field. If soil and vegetation conditions vary too much within the field, it can even change at different points in the field.

I think usually the hitch can be adjusted to balance those factors close enough for the implement itself, and changes in soil and vegetation conditions won't affect things that much. I suspect the disc you borrowed just hadn't been adjusted properly, or maybe had been adjusted a long time ago and wear had changed the pull characteristics. That kind of thing isn't so noticeable with a Challenger, the operator just cocks the wheel a bit without even realizing it and the tractor compensates by running one track just a bit faster than the other. With a direct drive D6, you notice right away because you have to keep pulling the clutch lever.

Pete.

Hi Team,
we had a Challenger 65 in our area that wore one track more than its mate.
The customer was not impressed when told it was not warranty as it was caused by the offset of his ploughs being more than the drawbar swing angle available.
We suggested re aligning his disc set to suit and it cured the problem. He was steering to compensate for the off centre draft of the discs--if that is the correct way to describe it. We were new to Ag Tractor problems too.
Cheers,
Eddie B.

my understanding of using offset discs are always turn to the closed side of the discs usually the left hand side I always work in lands and when I have around two passes left I start doing single passes or striking out or what ever you call it on the next land as to avoid tight turns when the first land is completed
I always run with draw bar swinging if it pulls to the right on left turn discs the hitch on the discs need to lowered or weight added to the rear gang as the front gangs are biting deeper than the rear gangs anyway thats the way I do it and once they are set they dont need much adjustment oh yeah I always start the first land by doing a big clover leaf if that makes any sense doing two circles

Paul