KUHN GMD883, Руководство оператора и инструкция по установке, Страница: 81 / 88

Trouble shooting guide
Disc mower
GMD883
79
$ 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.
Too low PTO speed (rotational
frequency).
Increase speed to 1000 min
-1
.
Soil build up in front of the
cutterbar.
Too much cutterbar down
pressure.
Increase accumulator
pressure.
Very wet working conditions.
Adjust main frame height with
regards to the ground.
Bad ground contour
adaptation.
Incorrect main frame setting.
Adjust main frame height with
regards to the ground.
Excessive ground speed. Reduce ground speed.
Insufficient ground pressure. Reduce accumulator pressure.
Insufficient cutterbar ground
clearance in "headland turn"
position.
Incorrect tractor lift linkage
setting.
See machine attachment.
Too long levelling rod
adjustment.
Shorten levelling rods.
Mowing units do not lift.
The tractor valve does not
supply oil at the right pressure.
Replace the faulty component
if necessary.
The mowing units do not fold.
Setting the machine into
transport position can only be
carried out with the machine in
headland turn position. Place the machine in headland
turn position.