JD 6400 3-point problem

[Anonymous-0]

I have a 1997 JD 6400 MFWD tractor. The three point is controlled by 3 different means. You can raise/lower the 3 point using buttons on the back fenders (these work), there are electronic raise and lower buttons in the cab (these work), and there is a manual raise and lower inside the cab using a 1/2 moon sliding device. This 1/2 moon doesn"t work to raise or lower the 3 point but there other two methods do. Does anyone know what is going on? I checked the fuses (the correct ones I believe) and they all looked good. Help!

 

[mattd]

check the connections at the 3 pt potentiometer-what you call the half moon device. if they look good unhook it and remove it from the tractor. hook an ohmmeter to the potentiometer. should be a connector with 3 terminals. move the knob up and down and your resistance should change with moving the knob. if it doesnt then your potentiometer is bad.

 

[Anonymous-0]

It looks like my potentiometer is bad. When I had the ohmmeter on it there was nothing. It looks like I need to replace the sensor thing. Part number Re64281 OR rel4796. I am going to price them tomorrow.