i went out and bought a land pride 1572 disc harrow to prep a area for pumpkins. this is my first time using a disc harrow. i didn't use a bottom plow before discing, i just started discing. took a few passes, but it looks ready. i have a question though. when i discing it was pulling the rear end of the tractor, consistently, to the right. i had the gangs at the max angle for cutting. wold it be because i was working soil that hasn't been worked?
disc harrow use
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North Idaho Wolfman
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The only reason it would pull to one side would be if you have the gangs adjusted off.
One side of gangs is ahead of the other.
One side of gangs is ahead of the other.
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Post a picture of your disc hooked up to your tractor. That will allow us to see better what might be wrong.
It would have to be pretty tilted left to right to pull the tractor to the side. Or, the right side would have to be at a more aggressive angle than the left. I have a Howse disc and, if yours is like mine, it would be difficult to get different angles with the gangs.
If you have used a plow before, then you know how important it is to have the angles right. You may already know the below.
Try this:
>lower the disc slowly, the outside left and outside right side should touch the ground at the same time
>front to rear, the rear gangs should just barely touch ground before the fronts. This is because pulling the disc will cause it to tilt very slightly forward.
>with the disc fully lifted, try spinning the gangs. They should all spin freely. If not, you may have a bad bearing or put the bearings in a bind when the disc was adjusted.
Unworked soil should not affect the tracking of the disc if everything is properly set up.
If you have used a plow before, then you know how important it is to have the angles right. You may already know the below.
Try this:
>lower the disc slowly, the outside left and outside right side should touch the ground at the same time
>front to rear, the rear gangs should just barely touch ground before the fronts. This is because pulling the disc will cause it to tilt very slightly forward.
>with the disc fully lifted, try spinning the gangs. They should all spin freely. If not, you may have a bad bearing or put the bearings in a bind when the disc was adjusted.
Unworked soil should not affect the tracking of the disc if everything is properly set up.
Last edited:
it is a brand new disc. i have spun them all and they do spin freely. i leveled it so when i lower my 3 point all the disc touch the ground at the same time, i didnt know the rear gangs should hit first. ill try that next time. both gangs adjust at the same time when you adjust the angel. so i dont think thats a issue. do my "chains" on my lift bars have to be tighter than normal? i usally have them a tad loose, not to the point where my impliments slap side to side or anything.
It sounds like you have checked everything and it all is fine. So I'm stumped about the pulling.
The "chain" should be as you have set them. The little bit of slack gives a bit of a cushion if something like a hidden boulder is hit. There will be less damage to the tractor (and disc).
A couple of random thoughts:
>Did you move the front gangs toward the center and the rear gangs to the outside? The fronts throw the dirt outwards and the rears are supposed to throw them back so the soil comes out fairly level.
>When you disced and the tractor pulled, did you overlap the disced area? That is, one half of the pass was previously disced an the other half was undisced. That would tend to allow the disc to sink (dig) into the already disced half while the undisced side would ride higher. That might cause a pull. (Hard to describe.)
OK, final attempt.
Since you have not adjusted the gangs for width, the fronts should be toward the middle, almost touching. You'll still get a little strip of untouched ground right down the middle.
The rears should be adjusted outward, almost to the end of their mounting tubes. That will allow the soil that was thrown out by the fronts to be thrown back by the rears. The wider rears will also give more stability. Otherwise, you might end up with a mound on the outside of your path.
If one side is adjusted farther out than the other (either front or rear), then that could cause a pull. Posting a photo of your setup might give somebody a lot smarter than me an idea for an additional solution.
BTW, that annoying undisced strip down the middle can be solved by something like this. It takes a bit of fabbing and welding. Someday I'll take a photo of the finished and mounted project.
Since you have not adjusted the gangs for width, the fronts should be toward the middle, almost touching. You'll still get a little strip of untouched ground right down the middle.
The rears should be adjusted outward, almost to the end of their mounting tubes. That will allow the soil that was thrown out by the fronts to be thrown back by the rears. The wider rears will also give more stability. Otherwise, you might end up with a mound on the outside of your path.
If one side is adjusted farther out than the other (either front or rear), then that could cause a pull. Posting a photo of your setup might give somebody a lot smarter than me an idea for an additional solution.
BTW, that annoying undisced strip down the middle can be solved by something like this. It takes a bit of fabbing and welding. Someday I'll take a photo of the finished and mounted project.
