This function is used to calibrate the air suspension.
A spacer shall be placed between chassis and drive axle.
LF45 153 mm spacers.
LF55 2 bellows on the drive axle 102 mm spacers.
LF55 4 bellows on the drive axle 90 mm spacers.
Calibration of level sensors shall be performed when:
Control unit has been replaced.
Work has been done on level sensor, or it has been replaced.
Calibration is defective.
Note:
The vehicle will move up and down when the air suspension is calibrated. It is therefore extremely important that no persons or equipment remain in the area around or underneath the vehicle, to prevent damage or injury.
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.
Procedure:
Select the calibration function.
Adjust normal level with the buttons in the program.
Calibrate the normal level.
Adjust upper level with the buttons in the program.
Calibrate upper level.
Function done.
If the function fails, check the test conditions and repair any faults.