Grader Sensors Calibration and Hydraulic Valve Calibration Sensor
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 – 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”
Mainfall, Blade Slope and Rotation Sensors
Mainfall, Blade Slope and Rotation Sensors
Mainfall, Blade Slope and Rotation Sensors
Mainfall, Blade Slope and Rotation Sensors
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 - Blade Slope
Sensor Calibration – Rotation Sensor
Sensor Calibration – Rotation Sensor
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 – Mainfall Sensor
Sensor Calibration – Mainfall Sensor
Sensor Calibration – Electric Mast • EM 400 is a mechanical device • EM 400 calibration allows us to reset zero point • Maintains integrity of dimensions against EM 400 extension
Sensor Calibration – Electric Mast
Valve Calibration - Basics • • Allows smooth automatic control – GCS 900 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 CB 430 The valve calibration should be done with warm oil and at normal operating revs. Valve calibration can only be done using the AS 400 (and not a LR 410 or GPS) – May need to temporarily mag mount AS 400 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
Left Valve Calibration
Left Valve Calibration
Left Valve Calibration
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
Left Valve Calibration
Left Valve Calibration
Left Valve Calibration
Right Valve Calibration • Process is similar to the “Left” calibration
Right Valve Calibration
Right Valve Calibration
Right Valve Calibration
Right Valve Calibration
Right Valve Calibration
Right Valve Calibration
Right Valve Calibration
Right Valve Calibration
Questions?
- Slides: 37