HP to pull disk

   / HP to pull disk #1  

em69783

New member
Joined
Mar 29, 2012
Messages
6
Location
New Jersey
Tractor
John Deere 1020
Need some advice... I have a john deere 1020 gas 40 hp tractor. It has wheel weights, calcium, and r1 tires. I pull an 8 ft 3 point disk now in 5th gear with no problems.I farm about 30 acres and all the land is flat. I am looking to buy a pull type disk however i am not sure if 10 ft would be too much.Finding an 8 ft pull type disk around my way is extremely hard. A guy has one for sale around me which it light weight and not off set. My question is would it be too much? Can I not sink it all the way down? Thanks for the help!:D
 
   / HP to pull disk #2  
The diameter of the disk and the angle of the gangs can also affect the pull of the disk. Just from the few sets I have seen, the weight of a pull type disk is much greater than a 3 pt. When you say pull type I assume you mean a transport disk.

I have used disks before where I was able to adjust them so the front gang would hit the ground after the back gang. Then not let it all the way down, just so the front gang was cutiing a little and the back gang full. This allowed me to pull a larger disk than the tractor normally would. I only did this when the regular tractor was tied up.

With the other factors I have had trouble pulling a 12' disk that the same tractor pulled a lighter 14' with no problem.
 
   / HP to pull disk #3  
Assuming equal weight per disc, a pull-type will pull significantly easier than a 3-point. If you handle the 8 ft, 3-point without any trouble, then you will certainly have no issues with the 10 ft pull-type. I use an 8-foot pull-type behind my 43 hp, 4wd tractor and it doesn't even know it is back there. The 6-foot, 3-point I had previously, pulled significantly harder. I like my equipment on the small side for my available power because it lets me get the job done before soil conditions are perfect. I personally cant stand 3-point discs, but there are many folks who dont know no better so you should have no problems selling yours. You will also notice significantly less fuel usage with a pull-type disc compared to a 3-point. The fuel is saved because less "work" is done with the pull-type, but the ground gets ready to plant sooner because all areas are worked to a uniform depth rather than some places not touched at all and others worked extra deep as occurs with the more ridgid 3-point disc. Pull-type discs are always adjustable on the angle so you can simply set it less aggressive if you are concerned with power. I can use my 8-footer at the most aggressive angle behind my 43 hp, 4wd in any field conditions, but I have to set it up at less angle behind my 20 hp 2wd. After the ground is worked a couple passes after plowing, even that 20 hp 2wd will handle the 8-footer at the steepest angle. I have yet to see a 3-point disc that I thought was worth more than its weight in scrap metal.
 
   / HP to pull disk #4  
Assuming equal weight per disc, a pull-type will pull significantly easier than a 3-point. If you handle the 8 ft, 3-point without any trouble, then you will certainly have no issues with the 10 ft pull-type. I use an 8-foot pull-type behind my 43 hp, 4wd tractor and it doesn't even know it is back there. The 6-foot, 3-point I had previously, pulled significantly harder. I like my equipment on the small side for my available power because it lets me get the job done before soil conditions are perfect. I personally cant stand 3-point discs, but there are many folks who dont know no better so you should have no problems selling yours. You will also notice significantly less fuel usage with a pull-type disc compared to a 3-point. The fuel is saved because less "work" is done with the pull-type, but the ground gets ready to plant sooner because all areas are worked to a uniform depth rather than some places not touched at all and others worked extra deep as occurs with the more ridgid 3-point disc. Pull-type discs are always adjustable on the angle so you can simply set it less aggressive if you are concerned with power. I can use my 8-footer at the most aggressive angle behind my 43 hp, 4wd in any field conditions, but I have to set it up at less angle behind my 20 hp 2wd. After the ground is worked a couple passes after plowing, even that 20 hp 2wd will handle the 8-footer at the steepest angle. I have yet to see a 3-point disc that I thought was worth more than its weight in scrap metal.
Please stop telling people this garbage. Someone may think you know what you're talking about. It's been established that you don't.
 
   / HP to pull disk #5  
Please stop telling people this garbage. Someone may think you know what you're talking about. It's been established that you don't.

The fellow may just know what he's talking about.:thumbsup::thumbsup::thumbsup:
 
   / HP to pull disk #6  
Please stop telling people this garbage. Someone may think you know what you're talking about. It's been established that you don't.

That's funny.:D

Fwiw...I don't like my 3 point, but I've never owned a well built one.
 
   / HP to pull disk #7  
I don't know if the three point is harder to pull, but I wouldn't have one. As far as hp required it all depends on the size of plates, weight of disk, and angle of cut. i have a 12' Krause with 18" plates and could pull it with the 4600. We also have a 8 ft rome disk with 32" plates that takes over 200hp to pull. I pulled a 8ft athens offset with 22" plates upened up and it took all of the 83hp my tractor had in slightly wet conditions.
 
   / HP to pull disk #9  
...After the ground is worked a couple passes after plowing, even that 20 hp 2wd will handle the 8-footer at the steepest angle...

I don't understand what you're doing differently. For me, my disks pull harder when the soil is soft or broken up compared to trying to pull them across hard pack. My light little Yanmar 20 hp 2 wheel drive tractor will pull my heaviest disk across hard pack, but my 5 1/2 foot wheel disk will stop my big IH 464 if the ground is soft and it is cutting deeply. I know your Allis C will far outstrip my Yanmar, but my 46 hp IH DEFINITELY knows there is a lot of load, even with my relatively small disk: it will get stuck if I'm not careful. There is no way I could handle an 8, let alone a 10 foot disk, especially in plowed ground.
 
   / HP to pull disk #10  
I don't understand what you're doing differently. For me, my disks pull harder when the soil is soft or broken up compared to trying to pull them across hard pack. My light little Yanmar 20 hp 2 wheel drive tractor will pull my heaviest disk across hard pack, but my 5 1/2 foot wheel disk will stop my big IH 464 if the ground is soft and it is cutting deeply. I know your Allis C will far outstrip my Yanmar, but my 46 hp IH DEFINITELY knows there is a lot of load, even with my relatively small disk: it will get stuck if I'm not careful. There is no way I could handle an 8, let alone a 10 foot disk, especially in plowed ground.

Yeah, it's like the difference between driving on flat or aired up tires. When the disk goes to the hub the tractor is grunting.
 
 

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