I have a Shibaura Sd2843t. And I was using it pretty hard the other day! It has front end loader too. But the lift arms on the back starting jerking (moving up and down about 1/4 inch) but makes the whole tractor jerk with the box blade on the back. When you move the lift lever it doesn't jerk until it stops where you want it then starts jerking again. But if you lift all the way up it doesn't jerk!! So I kept it all the way up yesterday so now when the tractor is not at full throttle the lift arms will slowly go down! So can anyone help my situation??
Make sure lift sensing rod is not loose. Next would be bad lift cylinder oring.
There may be a rod going from the lift arm to the control to sense how high the arms are. The lift cylinder is in the housing under the seat.
Does the loader work OK?
Well I took the valve off for the back arms and check all o rings and blew out the lines it's still jerking bad! I'm running out of ideas!
Now the front loader is jumping only when letting the loader down. But stops when pump is under a strain Any ideas??