International vibra shank side drafting

Zjames

New User
I have a 45 vibra shank digger and I put all new sweeps on and went I dig it side drafts. I have measured the depth adjusting rods and they are the same. It's a 13ft with no wings. I also measured the shanks to make sure they were evenly spaced as they should be they measure the same on both sides. Is there something else I could try? Thanks for any help
 
Are the tires the same diameter?

Is the rock shaft bent or twisted?

Is it the same height off the ground in the raise position?
 
The tires are the same with same pressures in both. Everything looks straight. I can see any places where paint has flaked due to being bent. I'm not sure how it pulled before I changed the sweeps. I bought it cheap and it needed new sweeps so I put them before using it.
 
Does it "Dog Track" to only one side, or towards your previously worked ground. If dogging to worked ground you need to not overlap.
If it always dogs to lets say the right, first check the heidth of the frame from the ground on each side, when working it. Tire size/ inflation pressure could be less on the Left side, allowing the left to dig deeper and pull harder than the RH side.
Loren, the Acg.
 
It side drafts even on my first pass. My overlap is very minimum. I made a few passes that weren't side by side thinking that the overlap was the problem but didn't make a difference it still drafted to the right side
 
How about the possibility of a number of shanks on the left side digging deeper under load? Meaning, while they all might look good setting flat and level on the driveway, when they're in the ground the shank flexes back and tips the nose of the sweep down and makes it pull harder. I don't know why they'd be all grouped together on one side, it's only a guess. With nothing else to go on, I'd take a few sweeps off the heavy side, pull it about 50 feet and see if it pulls straighter. If that was to work, I'd then reinstall the sweeps with a washer under the bottom hole, to point the nose upward somewhat. Then, in theory, when the shank flexes back under load, the sweep would be running level.
 
James, have you looked close to the Y braces that attaches the hitch. Friend bought a 20 footer long time ago that did that and found that someone mujst have broke one and replaced it with a home made one. Looked the same but one was 2.5" longer than the other side.
 

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