The problem is the potentiometer linkage has to much movement in it and causes the reading to wonder.
The attachment I am sending is what they put all the new combines and I have done to all the machines in my territory. The potentiometer is built into the actuator. This makes it more accurate. It costs about $800.00. I have had this problem since 2003 on the R75's and up. This has cured the problem if the price doesn't scare you. If you do this the wires on the actuator will need to be swapped around to get it to work on the can bus.
The attachment I am sending is what they put all the new combines and I have done to all the machines in my territory. The potentiometer is built into the actuator. This makes it more accurate. It costs about $800.00. I have had this problem since 2003 on the R75's and up. This has cured the problem if the price doesn't scare you. If you do this the wires on the actuator will need to be swapped around to get it to work on the can bus.