Troubleshooting guide
Disc mower
GMD240-280-310
89
KN204AGB H
Bad ground contour
adaptation.
Incorrect main frame setting.
Adjust main frame height with
regards to the ground.
Excessive ground speed. Reduce ground speed.
Hydraulic cylinder blocked.
Set hydraulic valve in floating
position.
Incorrect compensating spring
adjustment.
Adjust compensating spring
tension.
Cutter bar pivot bushes are
worn or seized.
Check condition of pivot
bushes.Grease (If necessary).
Replace if necessary.
Stubble too long.
Incorrect cutter bar pitch angle.
Modify pitch angle using top
link.
Machine too light.
Adjust compensating spring
tension.
Check frame position.
Too frequent safety breakback
release.
Insufficient spring washer
compression.
Increase spring washer
compression.
Insufficient ground clearance in
headland turn position.
The headland turn position
valve shuts off too early.
Adjust limiter adjustment
screw.
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