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Tremont, IL | I recently bought a JD 7800 and getting it ready to spray and drill beans with i noticed the digital speedometer is reading inaccurately against my trimble guidance system. Contacted my dealer and they gave me some directions on how to calibrate the radar on the tractor but cant seem to get it into the calibration mode. Any ideas? It says to hold the 3 push buttons in till it says --- or something(could take 3.5 to 8 seconds, i have done much longer as well), mineinstaed says 0008 in the top box and 4 in the lower. Then after a couple seconds the top changes to 0000 and the bottom to 2. When i release the buttons it immediately goes back to normal mode. Anyone have any ideas? | |
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John Deere 7800 Radar Calibration
