Self leveling bell cranks keep breaking

[FinCat]

Hello all. Yes new to the site. Looking for alittle info.
The bell cranks on self leveling loader keep breaking. This is a 6415 JD with 563 loader. Wanting to know best way to reduce pressure to lift cylinders. I believe this is where the problem lies. We installed new cylinders and they are slightly larger as they not JD cylinders. (To expensive). Now we have had two bell cranks break on us over time and with larger cylinders think we need to adjust flow and pressure or atleast pressure to those cylinders. Any thoughts what is best to add or is this adjustable on this tractor.
Thanks

 

[ericm979]

If they just need a rebuild you could have a hydraulic cylinder shop rebuild the JD cylinders.

You can adjust the loader valve's relief valve to reduce the peak pressure that goes to the cylinders.

 

[LD1]

Pictures of whats breaking?

What cylinders were new and oversized? the lift or the curl?

And what was the bore diameter of the original cylinders and whats the bore diameter of the new cylinders?