If the vehicle is oscillating on the wayline or catches up the wayline very slowly there may be several reasons, e.g.
Preparations:
IMU calibration required
Steering valve is defective or
Steering valve calibration required
Steering angle sensor calibration required (front wheels must be in exact straight-ahead position when required during calibration)
Steering settings, see → Settings → Steering
Implement settings (see → manual of the implement)
Front axle ballast
Lower link stabilization setting
Significant difference in tire pressure between left and right tires
Steering angle sensor clearance
Front axle bearing clearance
Pressure supply to steering system
Internal / external leak in the steering system / steering cylinder
Exclusion of a mechanical defect/wear…
on the front axle (front axle clearance, axle center pin)
on the steering system (internal leak)
on the steering angle sensor
Find a field area which is as flat and uniformly worked as possible
Set the most accurate correction signal available
Fully boot the system, i.e. maximum possible number of bars A are displayed for location and correction signal
No implement present or implement not raised
1 Record the A-B wayline (see operating instructions)
2 Start FENDIAS
3 Under Diagnostics, select Vehicle
4 Connect the diagnostics adapter:
CAN1 = K bus (comfort bus)
CAN2 = G bus (transmission bus)
5 Confirm with OK
6 In the top menu bar under Comfort, select Differential lock
7 Diagnostics of steering angle sensor (see arrow)
8 With the automatic track guidance switched on, drive along the A-B wayline while simultaneously monitoring the value of the steering angle sensor
Calibration OK: The value fluctuates between ±0.1° and ±0.4°
If the sensor value is > ±3°, the automatic wayline guidance switches off and fault code 0E.1.A2 appears in the instrument cluster
The sensor value is almost independent of the correction signal if the time between creating the track line and automatically driving along the way-line is no longer than 15 minutes
Note: If the value fluctuates by more than ±0.4°calibration code 2401 must be carried out and a mechanical defect or wear must be ruled out.