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Mid-East Nebraska | --------------------------------------------------------------------------------
Calibrating Radar-Instrument Panel
RW55115-UN: ANALOG INSTRUMENT PANEL
RW55116-UN: DIGITAL INSTRUMENT PANEL
NOTE:
Changing tire size or loading of tractor can cause angle of radar to change making it necessary to calibrate the radar system.
Mark a straight-line course of 122 m (400 ft).
Press and hold simultaneously switches (A), (B), and (C). Software identification is first displayed, then digital display (D) will flash back and forth between km/h and MPH with three dashes.
Drive tractor at approximately 3.2 km/h (2 mph) and press switch (A) when crossing the first mark of the course. A series of numbers will continue to flash while driving the course.
NOTE:
Do not backup if end point is exceeded. Return to starting point and repeat procedure.
Press switch (A) when crossing the second mark of the course. "CAL" will be displayed for a few seconds. When display flashes back and forth between 122 m and 400 ft, calibration is complete.
Vehicle Speed
Press SPEED to display actual ground speed (A) with radar. The tractor must be in motion. The radar symbol (B) will be displayed.
Press switch again to display wheel speed (A).
Press switch again to toggle between these modes.
NOTE:
True ground speed may be different than wheel speed. If tractor is not equipped with radar, only wheel speed will be displayed.
Radar Calibration
Mark a 122 meter (400 ft) straight-line course (start and finish lines).
Press SPEED switch (C) and DISTANCE (D) for four seconds. Display field will show "---" and the "ft" and "m" symbols will flash. The "implement" arrow should be pointing up.
NOTE:
SPEED and DISTANCE switches must be pressed at the same time for correct calibration.
Drive tractor approximately 3.2 km/h (2 mph). As the tractor crosses the start-line, press the IMPLEMENT switch, to point the indicator arrow to the down position.
Press the IMPLEMENT switch as you cross the finish-line to change the arrow to the up position.
Display will alternate between "122 m and 400 ft" when calibration is successful.
NOTE:
"Err" will flash on display if calibration was not performed correctly. Previous calibration value will stay in memory.
Edited by motram5455 3/9/2012 22:45
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John Deere 7800 Radar Calibration
