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Discussion Starter · #1 ·
Hello has anybody had this message pop up on monitor? CALIBRATE HEADER GROUOND HEIGHT SENSORS. I did a feeder calibration with header off, then I attached the MacDon D60 header and lowered it to the ground for 3 seconds then all the way up and it still doesn't fix the issue. I attached the combine to the pickup header and the message disappears. As soon as I unhook pickup head the message comes back. I can't figure this one out. Any ideas? Thanks
 

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See if you can find the sensor in the diagnostics and see if the voltage changes as you push the header down such that the indicator moves from 1 to 4. If the voltage doesn't change, it could just be a bad height sensor (just an expensive potentiometer) on the header. I think the sensor is somewhere under the white indicator.
 

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make sure the combine recognises the changed head in Header 1 set up screen
Also do the calibration with the header running and see how you go assuming you have the hydraulic ram for fore /aft tilt and float on the adaptor .
if it aborts you have to make sure the voltage is within spec at either end of the float and adjust if needed
 

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Hello has anybody had this message pop up on monitor? CALIBRATE HEADER GROUOND HEIGHT SENSORS. I did a feeder calibration with header off, then I attached the MacDon D60 header and lowered it to the ground for 3 seconds then all the way up and it still doesn't fix the issue. I attached the combine to the pickup header and the message disappears. As soon as I unhook pickup head the message comes back. I can't figure this one out. Any ideas? Thanks
Did the header pause when you told it to go back up? It depends on your software if you can do that. The later 8120's with newer software there is a header calibration.
 

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Discussion Starter · #5 ·
Thanks for the replies Torriem, Headmech and 325mag. Thank you Torriem for telling me where to start to trouble shoot. The linkages and mechanisms under the white indicator seemed to be ceased from rust so I disassemble the works and lubricated and everything moves freely and easily now. I replaced the potentiometer also. In diagnostics the voltage does change as I lower and raise the header now. Good idea, Headmech I will attempt the calibration sequence with the header running tomorrow. 325mag the header does pause just above the ground and sometimes about 2/3 the way up. This a 2009 model with software 21.x that doesn't have the header calibration option. Thanks again for the helpful advice everybody
 
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