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Grader: Sensors Calibration and Hydraulic Valve Calibration. Sensor Calibration. Depending on the machine configuration, the following options are available under Configuration / Calibrate Sensors Mainfall, blade slope and rotation sensors Calibrate sensors together or individually
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Sensor Calibration • Depending on the machine configuration, the following options are available under Configuration / Calibrate Sensors • Mainfall, blade slope and rotation sensors • Calibrate sensors together or individually • Electric mast
Mainfall, Blade Slope and Rotation Sensors • All sensors are calibrated together in this option • Performed when the machine is first installed or when the accuracy of the system does not meet spec. • Follow the instructions on the “wizard”
Sensor Calibration - Blade Slope • Perform a blade slope calibration when only the blade slope calibration is suspect • E.g. Blade is badly worn or cutting edge has been replaced since the last sensor calibration.
Sensor Calibration – Mainfall Sensor • Perform a mainfall sensor calibration when only the mainfall sensor reading is suspect • Make sure the machine is parked on flat level ground and press “Calibrate” • This function zeros the sensor
Sensor Calibration – Electric Mast • EM400 is a mechanical device • EM400 calibration allows us to reset zero point • Maintains integrity of dimensions against EM400 extension
Valve Calibration - Basics • Allows smooth automatic control • GCS900 monitors the valve movement and computes a response curve. • Before starting the valve calibration you need to ensure that the machine measurements are entered into the CB430 • The valve calibration should be done with warm oil and at normal operating revs. • Valve calibration can only be done using the AS400 (and not a LR410 or GPS) • May need to temporarily mag mount AS400 on blade
Valve Calibration • Must be in Manager mode • Setup / Installation Menu / Valve Calibration • Select “Left” or “Right” valve
Left Valve Calibration • A set of screens follow – perform the instructions
Left Valve Calibration • Place in Auto • Press the Auto/Manual switch • System will then automatically move the blade and monitor the movement against the valve command
Right Valve Calibration • Process is similar to the “Left” calibration