Tractor Sizing 7810 pulling a 26 ft disc

tractorguy719 · May 15, 2013

I am wondering if my john deere 7810 will handle pulling a 26 ft disc

pjbci · May 15, 2013

Thats mighty wide for a 150 pto hp tractor. What model disk did you have in mind?

tractorguy719 · May 16, 2013

john deere 331 thanks for the reply

stuckmotor · May 16, 2013

Will the dealer or owner let you try it out before you buy it?

tractorguy719 · May 16, 2013

Im guessing they would. Thats a good idea thanks

roush9799 · May 17, 2013

We used to pull a 24 footer with a 4440 and a 4450. Does it have front wheel assist? That would help, we didn't have it on those two tractors. I'd say you'd be fine if your not on really steep ground.

tractorguy719 · May 17, 2013

Thanks a lot roush The tractor is fwa. Our ground is really flat so I think Ill give it a try Thanks again

roush9799 · May 18, 2013

Seems like FWA adds quite a bit of pulling power to a tractor. We used to have all 2wd tractors, now we only have the 4440, a 4240, a 6410 and a couple of 4020's around. The rest all have fwa. Like I said, you should be able to pull it with ease then. A 7810 has more power than the 44XX we had. We had a 4455 that was fwa and I know it would pull a disk that big.

jenkinsph · May 18, 2013

I would try it for sure, I have found the soil in New Mexico and Colorado to be easier to till than in other locals with very dense clay soil. pjbci and myself have both tilled in his locale and it would take alot more tractor to pull the same disk in Summit MS. Living in New Mexico I seldom have the traction and wheel spin issues using the same size and models of equipment that I used in the deep south.

pjbci · May 18, 2013

jenkinsph said:
I would try it for sure, I have found the soil in New Mexico and Colorado to be easier to till than in other locals with very dense clay soil. pjbci and myself have both tilled in his locale and it would take alot more tractor to pull the same disk in Summit MS. Living in New Mexico I seldom have the traction and wheel spin issues using the same size and models of equipment that I used in the deep south.

Yall must have some light soil out there. Would love to till it someday, just to see it. Here in south MS i went over 120 acres yesterday and 90 today with a 21 ft disk behind a 180pto hp tractor because the soil is so wet and heavy i didnt figure i could pull my bigger disk fast enough to do a good job. I was right 21 ft is all i can pull throught that dense wet clay until it dries some.

jenkinsph · May 19, 2013

pjbci said:
Yall must have some light soil out there. Would love to till it someday, just to see it. Here in south MS i went over 120 acres yesterday and 90 today with a 21 ft disk behind a 180pto hp tractor because the soil is so wet and heavy i didnt figure i could pull my bigger disk fast enough to do a good job. I was right 21 ft is all i can pull throught that dense wet clay until it dries some.

I have a sandy loam soil with little clay in it, rocks can make it harder to till but nothing like heavy clay.

I once drilled a hole with an auger at the Dixie Springs flow wells and was able to unwind a single piece of clay the full length of the flutes on the bit.

roush9799 · May 19, 2013

pjbci said:
Yall must have some light soil out there. Would love to till it someday, just to see it. Here in south MS i went over 120 acres yesterday and 90 today with a 21 ft disk behind a 180pto hp tractor because the soil is so wet and heavy i didnt figure i could pull my bigger disk fast enough to do a good job. I was right 21 ft is all i can pull throught that dense wet clay until it dries some.

Depth will make a difference too, if your just disking to cut out weeds, it doesn't take as much, but if your really wanting to grind the dirt up, then yeah, it would pull a bit harder.

pjbci · May 19, 2013

roush9799 said:
Depth will make a difference too, if your just disking to cut out weeds, it doesn't take as much, but if your really wanting to grind the dirt up, then yeah, it would pull a bit harder.

True. I pull everything "wheels up" or all the way down. If the tractor wont do this then i dont consider it "pulling" it, or a good match for tractor and disk.

MtnViewRanch · May 19, 2013

pjbci said:
True. I pull everything "wheels up" or all the way down. If the tractor wont do this then i dont consider it "pulling" it, or a good match for tractor and disk.

:thumbsup: If a tractor can't make use of the implement at the implements full capacity, then the implement is to big for the tractor IMO. All of our disks are small compared to what we are talking about in this thread. A 6', 8' & 12' all with 22" disks. I pull these with different tractors, all axle deep on the 2nd pass. and yet I read on here every year about how wide a set of disks that these people pull with much less of a tractor than I use.

I am still trying to figure out how a person with a 6000lb tractor with 60 hp pulls a 14'-16' disk when with my 10,000lb 75hp tractor there are times when the 8' disk is all it wants. :confused3:

I guess it is like some of the granite rocks that I see some of these guys pick up and move with a 2500lb rated loader. They are as big or bigger than what I can move with out 580 CaseTLB with a 6000lb lift rating.

Either all my equipment is just JUNK,

or the granite at our property is much heavier that the granite at other peoples places. :confused3:

Don't get me wrong, I'm not saying that anyone is lying, just that conditions and circumstances are different all over.

jenkinsph · May 20, 2013

Brian,
I think throwing out disk widths is somewhat meaningless without knowing the weight, amount of set and ground conditions. My experiences with disks and tractors is similar to yours in that I have been able to pull smaller sizes than some of those shown by others.

roush9799 · May 20, 2013

jenkinsph said:
Brian,
I think throwing out disk widths is somewhat meaningless without knowing the weight, amount of set and ground conditions. My experiences with disks and tractors is similar to yours in that I have been able to pull smaller sizes than some of those shown by others.

True, Deere's used to run 9" spacings and international ran 7" so you had more blades per foot on the IH. Also, the gang angle will affect how hard it pulls too. Some can be adjusted.

jenkinsph · May 20, 2013

roush9799 said:
True, Deere's used to run 9" spacings and international ran 7" so you had more blades per foot on the IH. Also, the gang angle will affect how hard it pulls too. Some can be adjusted.

Agreed, the amount of work done by the disk is the crux of it. If the blades have alot of set, weight/blade is high and ground speed is correct it can take alot of hp and tractor size to get it done.

bigblock · May 20, 2013

I disked some last year with a 7810, w/rear duals, pulling a 24' and didn't have any problems. In broke ground it was about all that tractor wanted though. I spent more time with a 8430 and a 32' disk. The 8430 had duals front and rear and the difference between the two tractors was the 7810 would would run out of power, the 8430 would run out of traction.

MtnViewRanch · May 20, 2013

jenkinsph said:
Brian,
I think throwing out disk widths is somewhat meaningless without knowing the weight, amount of set and ground conditions. My experiences with disks and tractors is similar to yours in that I have been able to pull smaller sizes than some of those shown by others.

Exactly, when little to no info is given, other than an xx wide disk and I want to pull it with zz tractor and that's if the tractor is mentioned at all. It is impossible to make a correct assessment.