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Deere 8520T Autopilot randomly disengages
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slick2k2
Posted 10/7/2013 14:56 (#3371140)
Subject: Deere 8520T Autopilot randomly disengages


I am working on a John Deere 8520T with Trimble Autopilot steering. FM-750 display on RTK using DCM-300 modem and x-fill. Going thru the field the autopilot will work flawlessly for about an hour and then it will just randomly disengage itself, engage button turns to yellow with no faults or messages displayed almost like it detected manual override. There is no movement of the steering wheel, the RTK fix is maintained and max offline distance is +/-1" when this occurs. Has anyone else had an issue like this? The machine is using the interface box to tie into the Deere steering control only, and there is no override sensor in the column. Any information would be helpful.
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