KUHN GMD800GII-FF, Operator'S Manual

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Trouble shooting guide
Disc mower
GMD800GII-FF
75
$ Trouble shooting guide
-
„ Problem „ Cause „ Remedy
Uneven stubble.
Dull or broken knives. Replace knives.
Knives not installed correctly.
Make sure the arrow on the
knife upper face is pointing in
the disc's direction of rotation.
Insufficient disk speed. Check belt tension.
Too low PTO speed
(rotational frequency).
Increase speed to 540 min
-1
.
Cutter bar pitch angle too high. Reduce angle.
Soil build up in front of the
cutterbar.
Too much cutterbar down
pressure.
Adjust compensating spring
tension.
Very wet working conditions.
Adjust main frame height with
regards to the ground.
Fit raised skid shoes.
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. 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.
Interference between tractor
and front guard.
Incorrect cam adjustment. Adjust machine pivot moment.