Calibration of level and pressure sensor shall be performed when:
The control unit has been replaced.
Work has been done on level sensors, pressure sensors, or when these have been replaced.
Calibration defective.
Note:
The vehicle will move up and down when the air suspension is calibrated. Therefore it is extremely important that no persons or equipment remain in the area around or under the vehicle's frame to prevent crushing injuries!
Test conditions:
Ignition on with external air supply connected or engine running.
The vehicle must stand on level ground.
On vehicles with a lifting axle, this must be lowered.
No faults in the system.
Air system full.
Procedure:
Select the calibration function.
Place spacer acc. to the list below between chassis and drive axle.
Set normal level using the buttons in the program.
Calibrate normal level.
Remove spacers.
Lower the car to mechanical stop using the buttons in the program.
Calibrate lower level and pressure sensor
Raise the car to upper level using the buttons in the program.
Calibrate upper level.
The function is done.
If the function fails, check the test conditions and repair any faults.
Model | Height of spacer (mm) |
---|---|
Rear axle standard | 90 |
Rear axle special applications | 70 |
Front axle | 80 |
Rear axle | |
FTXF 95 low deck | 75 |
FAS high volume | 60 |
FAR high volume | 60 |
FA high volume | 103 |
Front axle | |
FAS high volume | 80 |
FAR high volume | 80 |
FA high volume | 80 |