Combines header dropping on RTC

[skinnb]

Try driving header over a ditch and reprograming the computer. Hope that helps.

 

[Mountain_Doo]

This problem isn't all that new, it's been happening for at least this year and last year. I did reprogram the computer this year and that hasn't helped.

 

[Rusty]

Some things to consider. When using RTC the sensitivity needs to be toward the full clockwise position (opposite of auto header height mode). If you are using a header that has a header height pot on it - disconnect the wires. Have you performed a ground calibration with your header on and do the height numbers appear to read correctlyIJ Also is the feeder position pot and linkage free to rotateIJ

 

[shellman]

The header creeping down could be the result of a couple of things. The load check ball in the header control valve (the one mounted to the back of the stack) could be leaking or the spring behind the ball could have fatigued or broken. Make sure the header in on the ground and pressure relieved if you remove the plug to check. Does your machine have a float sensor mounted in the junction block above the drive axle. Those have been known to cause problems as well as the thermal relief valve if so equipped. Another thing I have seen is with the lower solenoid, which would be the upper one on the header valve. These solenoids contain a manual overide pin in the center of the stem. It has a dimple in the end and can be operated manually with a pocket screwdriver to make the head move. This also applies to the raise as well. The reel creeping foreward may be an internal cylinder leak. This circuit also has load checks on both sides of the circuit to lock the reel in place. Unloader swing, and field tracker also have these load checks, although tracker is a different part n. Might try swaping the load checks on the reel for and aft valve to see if it helps. One other thing to check is the feeder position pot and linkage. Make sure the linkage is adjusted properly (7 1_2 inches center to center I think). This is what the header contorller sees to maintain header height relative to the position control pot in the right hand console. Sensitivity should have nothing do to with RTC as this merely allows the header to lower to a predetermined height and remain there until the operator commands up or down. Most of the issues in this area have dealt with feederposition sensor(mounted to the upper left corner of the feeder house) and poor connections.